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Sample records for hts-squid nde system

  1. Robot-arm-based mobile HTS SQUID system for NDE of structures

    Energy Technology Data Exchange (ETDEWEB)

    Yotsugi, K; Hatsukade, Y; Tanaka, S [Department of Ecological Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tenpaku-cho, Toyohashi, Aichi 441-8580 (Japan)], E-mail: hatukade@eco.tut.ac.jp

    2008-02-01

    A robot-arm-based mobile HTS SQUID system was developed for NDE of fixed targets. To realize the system, active magnetic shielding technique using fluxgate as reference sensor for ambient field was applied to a cryocooler-based HTS SQUID gradiometer that was mounted on commercial robot-arm. In this technique, ambient field noise and pulse noise of 550 nT from robot were measured by the fluxgate near the SQUID, and then the fluxgate output was negatively fed back to generate compensation field around the SQUID and fluxgate. The noise from robot was reduced by a factor of about 20 and the shielding technique enabled the HTS SQUID to move in unshielded environment by the robot-arm without flux-trapping or unlocking at 10 mm/s. System noise measurement and inspection of hidden cracks in multi-layer composite-metal structure were demonstrated using the mobile SQUID-NDE system.

  2. Mobile HTS-SQUID NDE system with robot arm and active shielding using fluxgate

    Energy Technology Data Exchange (ETDEWEB)

    Hatsukade, Y. [Department of Ecological Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580 (Japan)], E-mail: hatukade@eco.tut.ac.jp; Yotsugi, K.; Tanaka, S. [Department of Ecological Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580 (Japan)

    2008-09-15

    A robot-arm-based mobile HTS-SQUID NDE system was developed for inspection of advanced structures such as hydrogen fuel cell tanks. In order to realize stable operation of HTS-SQUID exposed in Earth's field and robot arm's noise without flux trapping, flux jumping and unlocking during motion, a new active magnetic shielding (AMS) technique using fluxgate was introduced. The high sensitive fluxgate, which could measure magnetic field of up to several 10 {mu}T, was mounted near an HTS-SQUID gradiometer on the robot arm to measure the ambient noise and feed back its output to a compensation coil, which surrounded both SQUID and fluxgate to cancel the ambient noise around them. The AMS technique successfully enabled the HTS-SQUID gradiometer to be moved at 10 mm/s by the robot arm in unshielded environment without flux trapping, jumping and unlocking. Detection of hidden slots in multi-layer composite-metal structures imitating the fuel cell tank was demonstrated.

  3. Characteristics of an HTS-SQUID gradiometer with ramp-edge Josephson junctions and its application on robot-based 3D-mobile compact SQUID NDE system

    Energy Technology Data Exchange (ETDEWEB)

    Hatsukade, Y., E-mail: hatukade@ens.tut.ac.jp [Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580 (Japan); Hayashi, K.; Shinyama, Y.; Kobayashi, Y. [Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580 (Japan); Adachi, S.; Tanabe, K. [International Superconductivity Technology Center/Superconductivity Research Laboratory, 10-13, Shinonome 1-chome, Koto-ku, Tokyo 135-0062 (Japan); Tanaka, S. [Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580 (Japan)

    2011-11-15

    We investigated behavior of HTS-dc-SQUID gradiometers with ramp-edge Josephson junctions (JJs) in ac and dc magnetic fields. In the both fields, the gradiometers show higher durability against entry of flux vortices than SQUIDs with bicrystal JJs. A robot-based SQUID NDE system utilizing the gradiometer was developed in an unshielded environment. Detectability of the system to detect non-through cracks in double-layer structures was demonstrated. A new excitation coil was applied to detect cracks that oriented vertical and parallel to the baseline of the gradiometer. In this paper, we investigated detailed behavior of novel HTS-dc-SQUID gradiometers with ramp-edge Josephson junctions (JJs) in both an ac magnetic field and a dc magnetic field. In the both fields, the novel gradiometers shows the superior performance to the conventional YBa{sub 2}Cu{sub 3}O{sub 7-x} (YBCO) HTS-dc-SQUID gradiometer and a bare HTS-dc-SQUID ring with bicrystal JJs concerning durability against entry and hopping of flux vortices, probably due to their differential pickup coils without a grain boundary and multilayer structure of the ramp-edge JJs. A robot-based compact HTS-SQUID NDE system utilizing the novel gradiometer was reviewed, and detectability of the system to detect non-through cracks in a carbon fiber reinforced plastic (CFRP)/Al double-layer structure was demonstrated. A new excitation coil in which the supplied currents flowed in the orthogonal directions was applied to detect cracks that oriented vertical and parallel to the baseline of the gradiometer.

  4. HTS-SQUID NDE Technique for Pipes based on Ultrasonic Guided Wave

    International Nuclear Information System (INIS)

    Hatsukade, Y; Masutani, N; Teranishi, S; Masamoto, K; Kanenaga, S; Adachi, S; Tanabe, K

    2017-01-01

    This article describes research on the novel high-temperature superconductor (HTS) superconducting quantum interference device (SQUID) non-destructive evaluation (NDE) technique for metallic pipes based on ultrasonic guided waves. We constructed HTS-SQUID NDE system for pipes based on ultrasonic guided waves, which were generated and received by means of the magnetostrictive effects. Using the system, we measured magnetic signals due to T (0, 1) mode ultrasonic guided waves that transmitted on aluminium pipe, and investigated influences of measurement parameters to the magnetic signals, such as direction of a HTS-SQUID gradiometer, lift-off distance, and intensity and frequency of input current fed to a magnetostrictive transmitter. With the gradiometer oriented parallel to the pipe axis, more than 10 times larger signals were measured compared with that oriented perpendicular to the pipe axis. Magnetic signals measured by the gradiometer were inverse proportional to the power of the list- off distance, and proportional to the intensity of the input current up to 1 A pp . Relation between the frequency of the input current and the measured signal was shown and discussed. (paper)

  5. HTS-SQUID NDE Technique for Pipes based on Ultrasonic Guided Wave

    Science.gov (United States)

    Hatsukade, Y.; Masutani, N.; Teranishi, S.; Masamoto, K.; Kanenaga, S.; Adachi, S.; Tanabe, K.

    2017-07-01

    This article describes research on the novel high-temperature superconductor (HTS) superconducting quantum interference device (SQUID) non-destructive evaluation (NDE) technique for metallic pipes based on ultrasonic guided waves. We constructed HTS-SQUID NDE system for pipes based on ultrasonic guided waves, which were generated and received by means of the magnetostrictive effects. Using the system, we measured magnetic signals due to T (0, 1) mode ultrasonic guided waves that transmitted on aluminium pipe, and investigated influences of measurement parameters to the magnetic signals, such as direction of a HTS-SQUID gradiometer, lift-off distance, and intensity and frequency of input current fed to a magnetostrictive transmitter. With the gradiometer oriented parallel to the pipe axis, more than 10 times larger signals were measured compared with that oriented perpendicular to the pipe axis. Magnetic signals measured by the gradiometer were inverse proportional to the power of the list- off distance, and proportional to the intensity of the input current up to 1 App. Relation between the frequency of the input current and the measured signal was shown and discussed.

  6. Prospects on the application of HTS SQUID magnetometry to nondestructive evaluation (NDE)

    Science.gov (United States)

    Weinstock, H.

    1993-04-01

    In light of recent advances in the fabrication of low-noise HTS SQUIDs, a review is presented on the use of LTS SQUID magnetometry for nondestructive evaluation (NDE). Examples are given on applications relating to defects in steel, subsurface cracks in aircraft frames, and voids in non-metallic structures. HTS SQUIDs may make a significant difference in the acceptance of these applications because sensing coils will be closer to a sample under test, there will be greater instrument portability and the problem of bringing liquid helium to remote locations will be eliminated.

  7. Development of non-destructive evaluation system using an HTS-SQUID gradiometer for magnetized materials

    Science.gov (United States)

    Kawano, J.; Tsukamoto, A.; Adachi, S.; Oshikubo, Y.; Hato, T.; Tanabe, K.; Okamura, T.

    We have developed a new eddy-current non-destructive evaluation (NDE) system using an HTS SQUID gradiometer with the aim of applying it to practical materials with magnetization. The new NDE system employs a LN2-cooled external Cu pickup coil and an HTS SQUID chip placed in a magnetic shield made of HTS material. The HTS SQUID chip consists of an HTS planar gradiometer manufactured by using a ramp-edge junction technology and a multi-turn HTS thin film input coil coupled with the flip-chip configuration. The first-order coaxial gradiometric Cu pickup coil with a diameter of 16 mm and the baseline of 5.6 mm was used in the present NDE experiments. By using this NDE system, we could observe defect-induced magnetic signals without an appreciable influence of magnetization up to 10 mT. We also examined the ability of detecting deep-lying defects and compared with the results obtained using our previous NDE system.

  8. Development of Contaminant Detection System using HTS SQUIDs

    International Nuclear Information System (INIS)

    Ohtani, T.; Tanaka, S.; Narita, Y.; Ariyoshi, S.; Suzuki, S.

    2015-01-01

    In terms of food safety, mixture of contaminants in food is a serious problem for not only consumers but also manufacturers. In general, the target size of the metallic contaminant to be removed is 0.5 mm. However, it is a difficult task for manufacturers to achieve this target, because of lower system sensitivity. Therefore, we developed a food contaminant detection system based on high-Tc RF superconducting quantum interference devices (SQUIDs), which are highly sensitive magnetic sensors. This study aims to improve the signal to noise ratio (SNR) of the system and detect a 0.5 mm diameter steel ball. Using a real time digital signal processing technique along with analog band-pass filters, we improved the SNR of the system. Owing to the improved SNR, a steel ball with a diameter as small as 0.3 mm, with stand-off distance of 117 mm was successfully detected. These results suggest that the proposed system is a promising candidate for the detection of metallic contaminants in food products

  9. DC current distribution mapping system of the solar panels using a HTS-SQUID gradiometer

    International Nuclear Information System (INIS)

    Miyazaki, Shingo; Kasuya, Syohei; Saari, Mohd Mawardi; Sakai, Kenji; Kiwa, Toshihiko; Tsukada, Keiji; Tsukamoto, Akira; Adachi, Seiji; Tanabe, Keiichi

    2014-01-01

    Solar panels are expected to play a major role as a source of sustainable energy. In order to evaluate solar panels, non-destructive tests, such as defect inspections and response property evaluations, are necessary. We developed a DC current distribution mapping system of the solar panels using a High Critical Temperature Superconductor Superconducting Quantum Interference Device (HTS-SQUID) gradiometer with ramp edge type Josephson junctions. Two independent components of the magnetic fields perpendicular to the panel surface (∂Bz/∂x, ∂Bz/∂y) were detected. The direct current of the solar panel is visualized by calculating the composition of the two signal components, the phase angle, and mapping the DC current vector. The developed system can evaluate the uniformity of DC current distributions precisely and may be applicable for defect detection of solar panels.

  10. Current distribution evaluation of dye-sensitized solar cell using HTS-SQUID-based magnetic measurement system

    Energy Technology Data Exchange (ETDEWEB)

    Sakai, Kenji, E-mail: Sakai-k@okayama-u.ac.jp; Tanaka, Kohei; Kiwa, Toshihiko; Tsukada, Keiji

    2016-11-15

    Highlights: • Current distribution and direction of dye-sensitized solar cell (DSSC) was measured. • Electrical current flowing in the indium tin oxide (ITO) glass substrate was uniform. • The distribution of electrical current depended on I–V characteristic. • Current direction changed when the performance of DSSC is low. - Abstract: The current flowing inside a dye-sensitized solar cell (DSSC) was measured using a high-temperature superconductor superconducting quantum interference device (HTS-SQUID)-based magnetic measurement system. Further, a new evaluation method of the DSSC, which is difficult to measure using the conventional method, was investigated to improve the characteristics of the DSSC. The tangential components of the magnetic field generated from the DSSC were measured using two HTS-SQUIDs, and the intensity and direction related to the electrical current were obtained by the measured magnetic field. The DSSCs prepared with different dyes and catalytic substances showed different current-intensity mapping. The current direction was different for the DSSC with low performance. In addition, the current flowing in the ITO layer of the ITO glass substrate was also measured and the results confirmed that it had uniform distribution. These results show that the current mapping and the direction of the electrical current depend on the internal factors of the DSSC, and the detection of the magnetic field distribution generated from it is expected to lead to its new evaluation method.

  11. Highly balanced gradiometer systems based on HTS-SQUIDs for the use in magnetically unshielded environment

    NARCIS (Netherlands)

    Borgmann, H.J.R.; Rijpma, A.P.; ter Brake, Hermanus J.M.; Rogalla, Horst; David, P.

    1999-01-01

    Two different concepts for gradiometer formation were tested applying high-temperature rf SQUIDs operated at 77 K in liquid nitrogen. All gradiometer systems are fully based on magnetometers. The first concept applies a compensating magnetometer at different positions to actively cancel the magnetic

  12. ULF-NMR system using HTS-SQUID and permanent magnet

    Energy Technology Data Exchange (ETDEWEB)

    Fukumoto, Shohei, E-mail: hatukade@ens.tut.ac.jp [Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580 (Japan); Tsunaki, Shingo; Chigasaki, Takumi; Hatsukade, Yoshimi; Tanaka, Saburo [Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580 (Japan)

    2013-01-15

    Highlights: ► A permanent magnet was introduced into a ULF SQUID-NMR system for polarization. ► An instrument to transfer a sample in the magnet to under a SQUID was implemented. ► An AC pulse coil was also introduced to apply a π/2 pulse to obtain an NMR signal. ► A {sup 1}H NMR signal was measured while applying a static field of 45 μT. ► The signal to noise ratio of the {sup 1}H NMR signal was about 100. -- Abstract: We have constructed an ultra-low field (ULF) nuclear magnetic resonance (NMR)/magnetic resonance imaging (MRI) system using an HTS-rf-SQUID and room-temperature electromagnets in a magnetically shielded room (MSR). In this study, in order to improve the signal to noise ratio (S/N) of the system, we introduced a permanent magnet instead of the electromagnet for pre-polarizing the sample to enhance the pre-polarizing field (B{sub p}). The cylindrical permanent magnet of 270 mT was used to magnetize a water sample for several seconds outside the MSR and about 1.5 m away from the SQUID. We constructed an instrument to transfer the magnetized sample from the permanent magnet to under the SQUID in 0.5 s. Since the non-adiabatic condition cannot be kept in such sample transfer scheme, an AC pulse coil to apply an AC pulse field B{sub AC} to rotate the magnetization moments for π/2 was introduced to measure a free induction decay (FID) signal from the sample. By this system, we obtained an NMR signal from the water sample of 10 ml while applying a static field of 45 μT and π/2 pulse after the transfer. The S/N of the NMR spectrum was about 100 by a single shot, which was 10 times larger than that obtained with the electromagnet of 32 mT. In addition, we demonstrated the measurements of the longitudinal relaxation time (T{sub 1}) and the spin echo signal of the water sample by the system.

  13. Magnetic evaluation of a solar panel using HTS-SQUID

    Energy Technology Data Exchange (ETDEWEB)

    Kiwa, Toshihiko, E-mail: kiwa@okayama-u.ac.jp; Fukudome, Yohei; Miyazaki, Shingo; Saari, Mohd Mawardi; Sakai, Kenji; Tsukada, Keiji

    2013-11-15

    Highlights: •The magnetic evaluation system of a solar panel using HTS-SQUID has been developed. •The electric circuits made by the discrete devices on the circuit board were visualized. •The electric properties of the commercial solar panels were demonstrated. -- Abstract: The magnetic evaluation system of a solar panel using HTS-SQUID has been proposed and developed. A normal pick-up coil was applied to detect the tangential magnetic field to the panel surface. Since the detected field could be related to the currents of the solar panels, the electric properties of the solar panels could be evaluated. In this work, the evaluation of the electric properties of the commercial solar panels as well as the electric circuits made by the discrete devices on the circuit board was visualized.

  14. Magnetic evaluation of a solar panel using HTS-SQUID

    International Nuclear Information System (INIS)

    Kiwa, Toshihiko; Fukudome, Yohei; Miyazaki, Shingo; Saari, Mohd Mawardi; Sakai, Kenji; Tsukada, Keiji

    2013-01-01

    Highlights: •The magnetic evaluation system of a solar panel using HTS-SQUID has been developed. •The electric circuits made by the discrete devices on the circuit board were visualized. •The electric properties of the commercial solar panels were demonstrated. -- Abstract: The magnetic evaluation system of a solar panel using HTS-SQUID has been proposed and developed. A normal pick-up coil was applied to detect the tangential magnetic field to the panel surface. Since the detected field could be related to the currents of the solar panels, the electric properties of the solar panels could be evaluated. In this work, the evaluation of the electric properties of the commercial solar panels as well as the electric circuits made by the discrete devices on the circuit board was visualized

  15. Issues relating to airborne applications of HTS SQUIDs

    CERN Document Server

    Foley, C P; Binks, R A; Lam, S H K; Du, J; Tilbrook, D L; Mitchell, E E; MacFarlane, J C; Lee, J B; Turner, R; Downey, M; Maddever, A

    2002-01-01

    Airborne application of HTS SQUIDs is the most difficult environment for their successful deployment. In order to operate with the sensitivity required for a particular application, there are many issues to be addressed such as the need for very wide dynamic range electronics, motion noise elimination, immunity to large changing magnetic fields and cultural noise sources. This paper reviews what is necessary to achieve an airborne system giving examples in geophysical mineral exploration. It will consider issues relating to device design and fabrication, electronics, dewar design, suspension system requirements and noise elimination methods.

  16. Issues relating to airborne applications of HTS SQUIDs

    International Nuclear Information System (INIS)

    Foley, C P; Leslie, K E; Binks, R A; Lam, S H K; Du, J; Tilbrook, D L; Mitchell, E E; Macfarlane, J C; Lee, J B; Turner, R; Downey, M; Maddever, A

    2002-01-01

    Airborne application of HTS SQUIDs is the most difficult environment for their successful deployment. In order to operate with the sensitivity required for a particular application, there are many issues to be addressed such as the need for very wide dynamic range electronics, motion noise elimination, immunity to large changing magnetic fields and cultural noise sources. This paper reviews what is necessary to achieve an airborne system giving examples in geophysical mineral exploration. It will consider issues relating to device design and fabrication, electronics, dewar design, suspension system requirements and noise elimination methods

  17. Image processing for HTS SQUID probe microscope

    International Nuclear Information System (INIS)

    Hayashi, T.; Koetitz, R.; Itozaki, H.; Ishikawa, T.; Kawabe, U.

    2005-01-01

    An HTS SQUID probe microscope has been developed using a high-permeability needle to enable high spatial resolution measurement of samples in air even at room temperature. Image processing techniques have also been developed to improve the magnetic field images obtained from the microscope. Artifacts in the data occur due to electromagnetic interference from electric power lines, line drift and flux trapping. The electromagnetic interference could successfully be removed by eliminating the noise peaks from the power spectrum of fast Fourier transforms of line scans of the image. The drift between lines was removed by interpolating the mean field value of each scan line. Artifacts in line scans occurring due to flux trapping or unexpected noise were removed by the detection of a sharp drift and interpolation using the line data of neighboring lines. Highly detailed magnetic field images were obtained from the HTS SQUID probe microscope by the application of these image processing techniques

  18. Nondestructive evaluation of braided carbon fiber composites with artificial defect using HTS-SQUID gradiometer

    International Nuclear Information System (INIS)

    Shinyama, Y.; Yamaji, T.; Hatsukade, Y.; Takai, Y.; Aly-Hassan, M.S.; Nakai, A.; Hamada, H.; Tanaka, S.

    2011-01-01

    We applied a current-injection-based NDE method using a HTS-SQUID gradiometer to a braided CFRP with artificial cracks. Current distributions in the braided CFRP were estimated from measured field gradient distributions. A small crack, in which a few carbon-fiber bundles were cut, was well detected from the current distributions. A cross-section of the CFRP showed that a density of the bundles at edges is higher than the other part. The experimental results demonstrated the capability of the method to detect sub-mm cracks. Braided carbon fiber reinforced plastics (CFRPs) are one of multifunctional materials with superior properties such as mechanical strength to normal CFRPs since the braided CFRPs have continuous fiber bundles. In this paper, we applied the current-injection-based nondestructive evaluation (NDE) method using a HTS-SQUID gradiometer to the braided CFRP for the detection of the breakage of the bundles. We prepared planar braided CFRP samples with and without artificial cracks of 1 and 2 mm lengths, and measured the current density distribution above the samples using the NDE method. In the measurement results, not only a few completely-cut bundles but also the additional partially-cut bundles were detected from decrease in the measured current density along the cut bundle around the cracks. From these results, we showed that it is possible to inspect a few partially-cut bundles in the braided CFRPs by the NDE method.

  19. Non-destructive inspection using HTS-SQUID on aluminum liner covered by CFRP

    International Nuclear Information System (INIS)

    Hatsukade, Y.; Yotsugi, K.; Sakaguchi, Y.; Tanaka, S.

    2007-01-01

    An eddy-current-based SQUID non-destructive inspection (NDI) system to detect deep-lying cracks in multi-layer composite-Al vessels was developed taking advantage of the uncontested sensitivity of HTS-SQUID in low-frequency range. An HTS-SQUID gradiometer was mounted in a pulse tube cryocooler. A pair of differential coils with C-shaped ferrite cores was employed to induce an enhanced eddy current in an Al vessel wrapped in a carbon fiber reinforced plastic (CFRP) cover. Ellipsoidal dome-shaped Al liners containing through cracks, which were made by pressure cycle tests, in the CFRP covers with total thickness of 6 mm (CFPR 3 mm, and Al 3 mm) were inspected by the system. While inducing eddy currents in the vessels with excitation fields at 100 Hz or 7 kHz, the vessels were rotated under the HTS-SQUID. Above the cracks, anomalous signals due to the cracks were clearly detected at both frequencies. These results suggested the SQUID-NDI technique would be a possible candidate for inspection of high-pressure multi-layer composite-Al vessels

  20. Non-destructive inspection using HTS-SQUID on aluminum liner covered by CFRP

    Energy Technology Data Exchange (ETDEWEB)

    Hatsukade, Y. [Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580 (Japan)], E-mail: hatukade@eco.tut.ac.jp; Yotsugi, K. [Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580 (Japan); Sakaguchi, Y. [SAMTECH Corporation, 1000-18 Enmyo-cho, Kashiwara City, Osaka 582-0027 (Japan); Tanaka, S. [Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580 (Japan)

    2007-10-01

    An eddy-current-based SQUID non-destructive inspection (NDI) system to detect deep-lying cracks in multi-layer composite-Al vessels was developed taking advantage of the uncontested sensitivity of HTS-SQUID in low-frequency range. An HTS-SQUID gradiometer was mounted in a pulse tube cryocooler. A pair of differential coils with C-shaped ferrite cores was employed to induce an enhanced eddy current in an Al vessel wrapped in a carbon fiber reinforced plastic (CFRP) cover. Ellipsoidal dome-shaped Al liners containing through cracks, which were made by pressure cycle tests, in the CFRP covers with total thickness of 6 mm (CFPR 3 mm, and Al 3 mm) were inspected by the system. While inducing eddy currents in the vessels with excitation fields at 100 Hz or 7 kHz, the vessels were rotated under the HTS-SQUID. Above the cracks, anomalous signals due to the cracks were clearly detected at both frequencies. These results suggested the SQUID-NDI technique would be a possible candidate for inspection of high-pressure multi-layer composite-Al vessels.

  1. Development of a highly sensitive current and position monitor with HTS squids and an HTS magnetic shield

    International Nuclear Information System (INIS)

    Watanabe, T.; Ikeda, T.; Kase, M.; Yano, Y.; Watanabe, S.; Sasaki, Y.; Kawaguchi, T.

    2005-01-01

    A highly sensitive current and position monitor with HTS (High-Temperature Superconducting) SQUIDs (Superconducting QUantum Interference Device) and an HTS magnetic shield for the measurement of the intensity of faint beams, such as a radioisotope beam, has been developed for the RIKEN RI beam factory project. The HTS magnetic shield and the HTS current sensor including the HTS SQUID are cooled by a low-vibration pulse-tube refrigerator. Both the HTS magnetic shield and the HTS current sensor were fabricated by dip-coating a thin Bi 2 -Sr 2 -Ca 2 -Cu 3 -O x (Bi-2223) layer on 99.9% MgO ceramic substrates. The HTS technology enables us to develop a system equipped with a downsized and highly sensitive current monitor. Recently, a prototype system was completed and installed in the beam transport line of the RIKEN Ring Cyclotron to measure the DC-current of high-energy heavy-ion beams. As a result, we succeeded in measuring the intensity of the 600 nA 40 Ar 17+ beam (95 MeV/u). We describe the present status of the monitor system and the results of the beam measurements. (author)

  2. Detection of fine magnetic particles coated on a thread using an HTS-SQUID

    International Nuclear Information System (INIS)

    Kawagishi, K.; Itozaki, H.; Kondo, T.; Komori, K.; Koetitz, R.

    2004-01-01

    Polymer-coated magnetic particles, which contain superparamagnetic ferrite nanoparticles, were attached to a nylon thread of 0.35 mm in diameter and were detected by an HTS-SQUID. The length of the sample attached into the thread was within 3 mm and its interval was 30 mm. The particles were magnetized by a coil applied dc field or by a magnet of 1.4 T. The thread ran 2 mm under the SQUID with 20-100 mm/s of the rate. Signals of magnetic beads were detected and the peak-to-peak amplitude of the signals was directly proportional to the applied field and the weight of the magnetic particles. Obtained peak-to-peak amplitude for 20 ng of magnetite particles was 350 pT at 0.25 mT of applied dc field with noise of 18 pT, and estimated detection limit was 10 ng. S/N ratio was improved by the remanence measurement using the magnet and 5.8 ng of detection limit was obtained. This measurement has been proved to be promising for the continuous analysis of ultra dilute DNA solution

  3. Automated NDE Flaw Mapping System, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — NASA's Aircraft Aging and Durability Project (AADP) aims to ensure the safety of both commercial and military aviation aircraft. Non-destructive evaluation (NDE)...

  4. Automated NDE Flaw Mapping System, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — The prevailing approach to non-destructive evaluation (NDE) of aircraft components is to set an inspection schedule based on what is generally known about the...

  5. NDE for Ablative Thermal Protection Systems, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — This program addresses the need for non-destructive evaluation (NDE) methods for quality assessment and defect evaluation of thermal protection systems (TPS),...

  6. NDE for Ablative Thermal Protection Systems, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — This program addresses the need for non-destructive evaluation (NDE) methods for quality assessment and defect evaluation of thermal protection systems (TPS). Novel...

  7. Status of integration of small computers into NDE systems

    International Nuclear Information System (INIS)

    Dau, G.J.; Behravesh, M.M.

    1988-01-01

    Introduction of computers in nondestructive evaluations (NDE) has enabled data acquisition devices to provide a more thorough and complete coverage in the scanning process, and has aided human inspectors in their data analysis and decision making efforts. The price and size/weight of small computers, coupled with recent increases in processing and storage capacity, have made small personal computers (PC's) the most viable platform for NDE equipment. Several NDE systems using minicomputers and newer PC-based systems, capable of automatic data acquisition, and knowledge-based analysis of the test data, have been field tested in the nuclear power plant environment and are currently available through commercial sources. While computers have been in common use for several NDE methods during the last few years, their greatest impact, however, has been on ultrasonic testing. This paper discusses the evolution of small computers and their integration into the ultrasonic testing process

  8. Application of Automated NDE Data Evaluation to Missile and Aircraft Systems

    National Research Council Canada - National Science Library

    Hildreth, Joseph

    1996-01-01

    ... from the inspection of solid rocket motors during fabrication. The computerized system, called the Automated NDE Data Evaluation System or ANDES, was developed under contract to Martin Marietta...

  9. PC imaging system for reactor NDE

    International Nuclear Information System (INIS)

    Anon.

    1987-01-01

    PC-based systems have been given recent attention by EPRI to organize and manage inspection data (RP-2405-15, TestPro system); integrate with larger, mainframe computers to maintain dialogue for on-site and remote applications; and, in this project, to aid the operator in providing guidance to render decisions on the data. The PC system configuration for this project consisted of a central processing unit (CPU), a hard disk and a floppy disk, 640K bytes of system memory, a high-resolution graphics card and compatible color monitor, and a mouse for operator interaction with software. The software package was written in FORTRAN under the PC Disk Operating System (PC-DOS) and utilized a graphics package for image display. Application of this package to crack-counterbore discrimination in piping welds was investigated. Present automatic techniques utilize signal features from single, A-scan data to render a decision on whether the reflector is benign (i.e., counterbore, weld root) or a crack. However, experienced manual operators in the field make reliable decisions based on the integrated response from the reflector as the transducer is scanned past the suspicious region. Since this software package could display and manipulate ensemble A-scans, spatial features - similar to those used by experts - were developed as discriminants. Ultrasonic responses from intergranular stress corrosion cracks (IGSCCs) were discovered to vary both in time-of-flight and in their amplitude, whereas counterbore responses were more consistent. The software package contains methods for viewing and quantifying these spatial features

  10. Linear-array systems for aerospace NDE

    International Nuclear Information System (INIS)

    Smith, Robert A.; Willsher, Stephen J.; Bending, Jamie M.

    1999-01-01

    Rapid large-area inspection of composite structures for impact damage and multi-layered aluminum skins for corrosion has been a recognized priority for several years in both military and civil aerospace applications. Approaches to this requirement have followed two clearly different routes: the development of novel large-area inspection systems, and the enhancement of current ultrasonic or eddy-current methods to reduce inspection times. Ultrasonic inspection is possible with standard flaw detection equipment but the addition of a linear ultrasonic array could reduce inspection times considerably. In order to investigate their potential, 9-element and 17-element linear ultrasonic arrays for composites, and 64-element arrays for aluminum skins, have been developed to DERA specifications for use with the ANDSCAN area scanning system. A 5 m 2 composite wing surface has been scanned with a scan resolution of approximately 3 mm in 6 hours. With subsequent software and hardware improvements all four composite wing surfaces (top/bottom, left/right) of a military fighter aircraft can potentially be inspected in less than a day. Array technology has been very widely used in the medical ultrasound field although rarely above 10 MHz, whereas lap-joint inspection requires a pulse center-frequency of 12 to 20 MHz in order to resolve the separate interfaces in the lap joint. A 128 mm-long multi-element array of 5 mmx2 mm ultrasonic elements for use with the ANDSCAN scanning software was produced to a DERA specification by an NDT manufacturer with experience in the medical imaging field. This paper analyses the performance of the transducers that have been produced and evaluates their use in scanning systems of different configurations

  11. Ultrasonic system for NDE of fruits and vegetables

    International Nuclear Information System (INIS)

    Jhang, Kyung Young; Jung, Gyoo Hong; Kim, Man Soo

    1999-01-01

    The nondestructive internal quality evaluation of agricultural products has been strongly required from the needs for individual inspection. In recent, ultrasonic wave has been considered as a solution for this problem. This study is to construct the ultrasonic inspection system for fruits and vegetables on the basis of pre-knowledge that general frequency band(higher than 100 kHz) ultrasonic waves do not transmitted well due to severe attenuation. Our system includes ultrasonic pulser and receiver, transducers(50 kHz), acoustic hem, pneumatic controller and signal processing units (PC). In order to confirm the performance, several samples (apple, pear, persimmon, kiwi fruit, potato and radish) were tested, and the results showed sufficient possibility to apply to NDE of fruits and vegetables.

  12. Time-Domain Terahertz Computed Axial Tomography NDE System

    Science.gov (United States)

    Zimdars, David

    2012-01-01

    NASA has identified the need for advanced non-destructive evaluation (NDE) methods to characterize aging and durability in aircraft materials to improve the safety of the nation's airline fleet. 3D THz tomography can play a major role in detection and characterization of flaws and degradation in aircraft materials, including Kevlar-based composites and Kevlar and Zylon fabric covers for soft-shell fan containment where aging and durability issues are critical. A prototype computed tomography (CT) time-domain (TD) THz imaging system has been used to generate 3D images of several test objects including a TUFI tile (a thermal protection system tile used on the Space Shuttle and possibly the Orion or similar capsules). This TUFI tile had simulated impact damage that was located and the depth of damage determined. The CT motion control gan try was designed and constructed, and then integrated with a T-Ray 4000 control unit and motion controller to create a complete CT TD-THz imaging system prototype. A data collection software script was developed that takes multiple z-axis slices in sequence and saves the data for batch processing. The data collection software was integrated with the ability to batch process the slice data with the CT TD-THz image reconstruction software. The time required to take a single CT slice was decreased from six minutes to approximately one minute by replacing the 320 ps, 100-Hz waveform acquisition system with an 80 ps, 1,000-Hz waveform acquisition system. The TD-THZ computed tomography system was built from pre-existing commercial off-the-shelf subsystems. A CT motion control gantry was constructed from COTS components that can handle larger samples. The motion control gantry allows inspection of sample sizes of up to approximately one cubic foot (.0.03 cubic meters). The system reduced to practice a CT-TDTHz system incorporating a COTS 80- ps/l-kHz waveform scanner. The incorporation of this scanner in the system allows acquisition of 3D

  13. Micro- and nano-NDE systems for aircraft: great things in small packages

    Science.gov (United States)

    Malas, James C.; Kropas-Hughes, Claudia V.; Blackshire, James L.; Moran, Thomas; Peeler, Deborah; Frazier, W. G.; Parker, Danny

    2003-07-01

    Recent advancements in small, microscopic NDE sensor technologies will revolutionize how aircraft maintenance is done, and will significantly improve the reliability and airworthiness of current and future aircraft systems. A variety of micro/nano systems and concepts are being developed that will enable whole new capabilities for detecting and tracking structural integrity damage. For aging aircraft systems, the impact of micro-NDE sensor technologies will be felt immediately, with dramatic reductions in labor for maintenance, and extended useable life of critical components being two of the primary benefits. For the fleet management of future aircraft systems, a comprehensive evaluation and tracking of vehicle health throughout its entire life cycle will be needed. Indeed, micro/nano NDE systems will be instrumental in realizing this futuristic vision. Several major challenges will need to be addressed, however, before micro- and nano-NDE systems can effectively be implemented, and this will require interdisciplinary research approaches, and a systematic engineering integration of the new technologies into real systems. Future research will need to emphasize systems engineering approaches for designing materials and structures with in-situ inspection and prognostic capabilities. Recent advances in 1) embedded / add-on micro-sensors, 2) computer modeling of nondestructive evaluation responses, and 3) wireless communications are important steps toward this goal, and will ultimately provide previously unimagined opportunities for realizing whole new integrated vehicle health monitoring capabilities. The future use of micro/nano NDE technologies as vehicle health monitoring tools will have profound implications, and will provide a revolutionary way of doing NDE in the near and distant future.

  14. Combining NDE and fracture mechanics by artifical intelligence expert systems techniques

    International Nuclear Information System (INIS)

    Mucciardi, A.N.; Riccardella, P.C.

    1986-01-01

    This paper reports on the development of a PC-based expert system for non-destructive evaluation. Software tools from the expert systems subfield of artificial intelligence are being used to combine both NDE and fracture mechanics algorithms into one, unified package. The system incorporates elements of computer-enhanced ultrasonic signal processing, featuring artificial intelligence learning capability, state-of-the-art fracture mechanics analytical tools, and all relevant metallurgical and design data necessary to emulate the decisions of the panel(s) of experts typically involved in generating and dispositioning NDE data

  15. Pressure tube replication techniques using the advanced NDE system

    International Nuclear Information System (INIS)

    Isherwood, A.; Jarron, D.; Travers, J.; Hanley, K.

    2006-01-01

    Periodic and in-service inspections of fuel channels are essential for the proper assessment of the structural integrity of these vital components. The arrival of new delivery devices for fuel channel inspections has driven new tooling for gathering and analyzing NDE data. The Advanced Non-Destructive Examination (ANDE) Replication System has been designed to compliment the ANDE Inspection System by providing a two plate replica system. These plates deliver a compound that makes a positive 3D mould of known ID flaws to gather information for flaw assessment. The two plate system, and the ability to retrieve and recharge the moulds in the reactor vault allows for gathering defect information with minimal critical path time. The ANDE Replication System was built on the foundation of CIGAR experience by a solid design team familiar with 3D CAD and manufacturing techniques. The tooling and controls went through a series of integration stages in the laboratory and then later with the Universal Delivery Machine (UDM) before being used on reactor starting in 2003. Once the inspection phase of an outage has been completed, the analysis team provides a list of flaw candidates that require 'root radius' information to complete the flaw assessment. This is a measure of how sharp the corners are in the defect. This data is used as part of the stress calculation that ultimately determines how many shutdown cycles that the reactor can have before that flaw must be re-inspected. The inspection tool is then swapped out of the delivery machine in the reactor vault using the versatile connectorized umbilical. The replication tool is loaded on the machine, charged with replica compound on each of the two plates, and then sent to the target channel(s). On channel, the operators use the same console as the ANDE Inspection System, but have a separate control system with a graphical display of the tool that shows its position in the channel with respect to the E-face. The axial and

  16. Use of computerized data acquisition system to auralize NDE data for improved inspection capability

    International Nuclear Information System (INIS)

    Light, Glenn M.; Holt, Amos E.; Polk, Kent D.; Clayton, William T.

    2004-01-01

    Southwest Research Institute has developed computer-aided technology for converting electronic signals generated by conventional nondestructive evaluation (NDE) equipment (i.e., ultrasonic, eddy current, and acoustic emission) into audible information so that the inspector can make use of both the conventional NDE signals (which are often confusing) and the audible information to make a flaw/nonflaw decision. One objective of this work was to develop a computerized data acquisition system that could collect ultrasonic data, perform time dilation of the ultrasonic data, and help develop algorithms. The aural technology has been applied to composite impact damage, composite delamination detection, and corrosion detection. In addition, the aural technology was used to detect and discriminate intergranular stress corrosion cracking. Examples of application of aural NDE technology are described. (author)

  17. Miniaturized hand held microwave interference scanning system for NDE of dielectric armor and armor systems

    International Nuclear Information System (INIS)

    Schmidt, Karl F.; Little, Jack R.; Ellingson, William A.; Meitzler, Thomas J.; Green, William

    2011-01-01

    Inspection of ceramic-based armor has advanced through development of a microwave-based, portable, non-contact NDE system. Recently, this system was miniaturized and made wireless for maximum utility in field applications. The electronic components and functionality of the laboratory system are retained, with alternative means of position input for creation of scan images. Validation of the detection capability was recently demonstrated using specially fabricated surrogates and ballistic impact-damaged specimens. The microwave data results have been compared to data from laboratory-based microwave interferometry systems and digital x-ray imaging. The microwave interference scanning has been shown to reliably detect cracks, laminar features and material property variations. The authors present details of the system operation, descriptions of the test samples used and recent results obtained.

  18. Directed Design of Experiments for Validating Probability of Detection Capability of NDE Systems (DOEPOD)

    Science.gov (United States)

    Generazio, Edward R.

    2015-01-01

    Directed Design of Experiments for Validating Probability of Detection Capability of NDE Systems (DOEPOD) Manual v.1.2 The capability of an inspection system is established by applications of various methodologies to determine the probability of detection (POD). One accepted metric of an adequate inspection system is that there is 95% confidence that the POD is greater than 90% (90/95 POD). Design of experiments for validating probability of detection capability of nondestructive evaluation (NDE) systems (DOEPOD) is a methodology that is implemented via software to serve as a diagnostic tool providing detailed analysis of POD test data, guidance on establishing data distribution requirements, and resolving test issues. DOEPOD demands utilization of observance of occurrences. The DOEPOD capability has been developed to provide an efficient and accurate methodology that yields observed POD and confidence bounds for both Hit-Miss or signal amplitude testing. DOEPOD does not assume prescribed POD logarithmic or similar functions with assumed adequacy over a wide range of flaw sizes and inspection system technologies, so that multi-parameter curve fitting or model optimization approaches to generate a POD curve are not required. DOEPOD applications for supporting inspector qualifications is included.

  19. NDE reliability and advanced NDE technology validation

    International Nuclear Information System (INIS)

    Doctor, S.R.; Deffenbaugh, J.D.; Good, M.S.; Green, E.R.; Heasler, P.G.; Hutton, P.H.; Reid, L.D.; Simonen, F.A.; Spanner, J.C.; Vo, T.V.

    1989-01-01

    This paper reports on progress for three programs: (1) evaluation and improvement in nondestructive examination reliability for inservice inspection of light water reactors (LWR) (NDE Reliability Program), (2) field validation acceptance, and training for advanced NDE technology, and (3) evaluation of computer-based NDE techniques and regional support of inspection activities. The NDE Reliability Program objectives are to quantify the reliability of inservice inspection techniques for LWR primary system components through independent research and establish means for obtaining improvements in the reliability of inservice inspections. The areas of significant progress will be described concerning ASME Code activities, re-analysis of the PISC-II data, the equipment interaction matrix study, new inspection criteria, and PISC-III. The objectives of the second program are to develop field procedures for the AE and SAFT-UT techniques, perform field validation testing of these techniques, provide training in the techniques for NRC headquarters and regional staff, and work with the ASME Code for the use of these advanced technologies. The final program's objective is to evaluate the reliability and accuracy of interpretation of results from computer-based ultrasonic inservice inspection systems, and to develop guidelines for NRC staff to monitor and evaluate the effectiveness of inservice inspections conducted on nuclear power reactors. This program started in the last quarter of FY89, and the extent of the program was to prepare a work plan for presentation to and approval from a technical advisory group of NRC staff

  20. Position-controlled data acquisition embedded system for magnetic NDE of bridge stay cables.

    Science.gov (United States)

    Maldonado-Lopez, Rocio; Christen, Rouven

    2011-01-01

    This work presents a custom-tailored sensing and data acquisition embedded system, designed to be integrated in a new magnetic NDE inspection device under development at Empa, a device intended for routine testing of large diameter bridge stay cables. The data acquisition (DAQ) system fulfills the speed and resolution requirements of the application and is able to continuously capture and store up to 2 GB of data at a sampling rate of 27 kS/s, with 12-bit resolution. This paper describes the DAQ system in detail, including both hardware and software implementation, as well as the key design challenges and the techniques employed to meet the specifications. Experimental results showing the performance of the system are also presented.

  1. Development of a Remotely Operated NDE System for Inspection of Hanford's Double Shell Waste Tank Knuckle Regions

    International Nuclear Information System (INIS)

    Pardini, Allan F; Alzheimer, James M; Crawford, Susan L; Diaz, Aaron A; Gervais, Kevin L; Harris, Robert V; Riechers, Douglas M; Samuel, Todd J; Schuster, George J; Tucker, Joseph C

    2001-01-01

    This report documents work performed at the PNNL in FY01 to support development of a Remotely Operated NDE (RONDE) system capable of inspecting the knuckle region of Hanford's DSTs. The development effort utilized commercial off-the-shelf (COTS) technology wherever possible and provided a transport and scanning device for implementing the SAFT and T-SAFT techniques

  2. Explorer-II: Wireless Self-Powered Visual and NDE Robotic Inspection System for Live Gas Distribution Mains

    Energy Technology Data Exchange (ETDEWEB)

    Carnegie Mellon University

    2008-09-30

    Carnegie Mellon University (CMU) under contract from Department of Energy/National Energy Technology Laboratory (DoE/NETL) and co-funding from the Northeast Gas Association (NGA), has completed the overall system design, field-trial and Magnetic Flux Leakage (MFL) sensor evaluation program for the next-generation Explorer-II (X-II) live gas main Non-destructive Evaluation (NDE) and visual inspection robot platform. The design is based on the Explorer-I prototype which was built and field-tested under a prior (also DoE- and NGA co-funded) program, and served as the validation that self-powered robots under wireless control could access and navigate live natural gas distribution mains. The X-II system design ({approx}8 ft. and 66 lbs.) was heavily based on the X-I design, yet was substantially expanded to allow the addition of NDE sensor systems (while retaining its visual inspection capability), making it a modular system, and expanding its ability to operate at pressures up to 750 psig (high-pressure and unpiggable steel-pipe distribution mains). A new electronics architecture and on-board software kernel were added to again improve system performance. A locating sonde system was integrated to allow for absolute position-referencing during inspection (coupled with external differential GPS) and emergency-locating. The power system was upgraded to utilize lithium-based battery-cells for an increase in mission-time. The resulting robot-train system with CAD renderings of the individual modules. The system architecture now relies on a dual set of end camera-modules to house the 32-bit processors (Single-Board Computer or SBC) as well as the imaging and wireless (off-board) and CAN-based (on-board) communication hardware and software systems (as well as the sonde-coil and -electronics). The drive-module (2 ea.) are still responsible for bracing (and centering) to drive in push/pull fashion the robot train into and through the pipes and obstacles. The steering modules

  3. Scanning high-Tc SQUID imaging system for magnetocardiography

    International Nuclear Information System (INIS)

    Yang, H-C; Wu, T-Y; Horng, H-E; Wu, C-C; Yang, S Y; Liao, S-H; Wu, C-H; Jeng, J T; Chen, J C; Chen, Kuen-Lin; Chen, M J

    2006-01-01

    A scanning magnetocardiography (MCG) system constructed from SQUID sensors offers potential to basic or clinical research in biomagnetism. In this work, we study a first order scanning electronic high-T c (HTS) SQUID MCG system for biomagnetic signals. The scanning MCG system was equipped with an x-y translation bed powered by step motors. Using noise cancellation and μ-metal shielding, we reduced the noise level substantially. The established scanning HTS MCG system was used to study the magnetophysiology of hypercholesterolaemic (HC) rabbits. The MCG data of HC rabbits were analysed. The MCG contour map of HC rabbits provides experimental models for the interpretation of human cardiac patterns

  4. Ultra-low field MRI food inspection system prototype

    Energy Technology Data Exchange (ETDEWEB)

    Kawagoe, Satoshi, E-mail: s133413@edu.tut.ac.jp; Toyota, Hirotomo; Hatta, Junichi; Ariyoshi, Seiichiro; Tanaka, Saburo, E-mail: tanakas@ens.tut.ac.jp

    2016-11-15

    Highlights: • We have developed a ULF-MRI system using HTS-SQUID for food inspection. • We developed a compact magnetically shielded box to attenuate environmental noise. • The 2D-MR image was reconstructed from the grid processing data using 2D-FFT method. • The 2D-MR images of a disk-shaped and a multiple cell water sample were obtained. • The results showed the possibility of applying the ULF-MRI system to food inspection. - Abstract: We develop an ultra-low field (ULF) magnetic resonance imaging (MRI) system using a high-temperature superconducting quantum interference device (HTS-SQUID) for food inspection. A two-dimensional (2D)-MR image is reconstructed from the grid processing raw data using the 2D fast Fourier transform method. In a previous study, we combined an LC resonator with the ULF-MRI system to improve the detection area of the HTS-SQUID. The sensitivity was improved, but since the experiments were performed in a semi-open magnetically shielded room (MSR), external noise was a problem. In this study, we develop a compact magnetically shielded box (CMSB), which has a small open window for transfer of a pre-polarized sample. Experiments were performed in the CMSB and 2D-MR images were compared with images taken in the semi-open MSR. A clear image of a disk-shaped water sample is obtained, with an outer dimension closer to that of the real sample than in the image taken in the semi-open MSR. Furthermore, the 2D-MR image of a multiple cell water sample is clearly reconstructed. These results show the applicability of the ULF-MRI system in food inspection.

  5. Training activities at the EPRI NDE Center

    International Nuclear Information System (INIS)

    Pherigo, G.

    1986-01-01

    The Electric Power Research Institute (EPRI), through its Nondestructive Examination (NDE) Center in Charlotte, North Carolina, has identified two specific categories of NDE training to best serve the industry's need for enhanced personnel qualification programs. These categories include in-service inspection (ISI) training and technical skills training. The ISI training provides operator training in new NDE technology areas that are ready for field application. The technical skills training is developed as part of a long-range plan to support all basic NDE methods typical to the electric power industry. The need for specific training and better documentation of NDE personnel qualifications is becoming more evident. ASME Section XI requirements for the qualification and certification of visual examiners and the recognition by the US Nuclear Regulatory Commission (NRC) of the importance of the ultrasonic (UT) operator in finding intergranular stress corrosion cracking (IGSCC) are two of the major issues being addressed by the training task of the EPRI NDE Center. The overall intent of the center's training is to meet the most critical utility needs with quality training that can be used by the trainee's employer as a part of their certification of that individual. To do this, the center has organized and activated a carefully maintained documentation and records systems built around the continuing education unit

  6. NDE training activities at the EPRI NDE center

    International Nuclear Information System (INIS)

    Anon.

    1987-01-01

    The need for an industry-wide qualification for NDE personnel is becoming more evident in both in-service inspection and technical skills training. ASME Section XI requirements for the qualification and certification of visual, ultrasonic, and eddy current examines is one of the major areas being supported by training at the Center. The other major thrust is in response to the Boiling Water Reactor Owners Group and its recognition of the importance of the UT operator's accurately detecting, discriminating, and sizing intergranular stress corrosion cracks (IGSCC) in piping, and inspecting weld overlay repairs of these cracked pipes. In addition, the pressurized water reactor (PWR) utilities have recognized the importance of improved eddy current data analysis of steam generator tubing. The overall intent of the Center's training is to meet the most critical utility needs with quality training that can be used by the trainee's employer as a part of its certification of that individual. To do this, the Center has organized and activated a carefully maintained documentation and records system built around the Continuing Education Unit (CEU). To address the problem of the small supply of entry-level NDE personnel available to the utilities, the Center has developed, through its Human Resource Development, academic and utility co-op programs to generate guidelines and NDE teaching materials for high schools, technical schools, and universities

  7. Steam generator tubing NDE performance

    International Nuclear Information System (INIS)

    Henry, G.; Welty, C.S. Jr.

    1997-01-01

    Steam generator (SG) non-destructive examination (NDE) is a fundamental element in the broader SG in-service inspection (ISI) process, a cornerstone in the management of PWR steam generators. Based on objective performance measures (tube leak forced outages and SG-related capacity factor loss), ISI performance has shown a continually improving trend over the years. Performance of the NDE element is a function of the fundamental capability of the technique, and the ability of the analysis portion of the process in field implementation of the technique. The technology continues to improve in several areas, e.g. system sensitivity, data collection rates, probe/coil design, and data analysis software. With these improvements comes the attendant requirement for qualification of the technique on the damage form(s) to which it will be applied, and for training and qualification of the data analysis element of the ISI process on the field implementation of the technique. The introduction of data transfer via fiber optic line allows for remote data acquisition and analysis, thus improving the efficiency of analysis for a limited pool of data analysts. This paper provides an overview of the current status of SG NDE, and identifies several important issues to be addressed

  8. NOAA JPSS Microwave Integrated Retrieval System (MIRS) Advanced Technology Microwave Sounder (ATMS) Sounding Products from NDE

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset contains temperature and humidity profiles from the NOAA Microwave Integrated Retrieval System (MIRS) using sensor data from the Advanced Technology...

  9. Integration of fracture mechanics and NDE

    International Nuclear Information System (INIS)

    Njo, D.H.; McDonald, N.R.; Nichols, R.W.

    1991-01-01

    This paper addresses issues concerning the effective assessment of the structural integrity of safety related components, principally the primary system, in operating nuclear power plants. The failure mode of greatest safety concern is fracture and this is usually assessed by fracture mechanics (FM) procedures. These require the choice and application of an appropriate analytical method based on a knowledge of the materials, loading and environmental conditions, and characteristics of such defects as have been identified by non destructive examination (NDE). The paper focuses on capabilities and limitations of the NDE procedures, FM methods and other input information which must be taken into account in practical circumstances as well as some problems encountered. It concludes that an integral approach requiring mutual understanding, dialogue and cooperation among the materials, FM and NDE experts is essential for effective and reliable structural integrity assessments

  10. A scaleable integrated sensing and control system for NDE, monitoring, and control of medium to very large composite smart structures

    Science.gov (United States)

    Jones, Jerry; Rhoades, Valerie; Arner, Radford; Clem, Timothy; Cuneo, Adam

    2007-04-01

    NDE measurements, monitoring, and control of smart and adaptive composite structures requires that the central knowledge system have an awareness of the entire structure. Achieving this goal necessitates the implementation of an integrated network of significant numbers of sensors. Additionally, in order to temporally coordinate the data from specially distributed sensors, the data must be time relevant. Early adoption precludes development of sensor technology specifically for this application, instead it will depend on the ability to utilize legacy systems. Partially supported by the U.S. Department of Commerce, National Institute of Standards and Technology, Advanced Technology Development Program (NIST-ATP), a scalable integrated system has been developed to implement monitoring of structural integrity and the control of adaptive/intelligent structures. The project, called SHIELD (Structural Health Identification and Electronic Life Determination), was jointly undertaken by: Caterpillar, N.A. Tech., Motorola, and Microstrain. SHIELD is capable of operation with composite structures, metallic structures, or hybrid structures. SHIELD consists of a real-time processing core on a Motorola MPC5200 using a C language based real-time operating system (RTOS). The RTOS kernel was customized to include a virtual backplane which makes the system completely scalable. This architecture provides for multiple processes to be operating simultaneously. They may be embedded as multiple threads on the core hardware or as separate independent processors connected to the core using a software driver called a NAT-Network Integrator (NATNI). NATNI's can be created for any communications application. In it's current embodiment, NATNI's have been created for CAN bus, TCP/IP (Ethernet) - both wired and 802.11 b and g, and serial communications using RS485 and RS232. Since SHIELD uses standard C language, it is easy to port any monitoring or control algorithm, thus providing for legacy

  11. Review of progress in quantitative NDE. [Nondestructive Evaluation (NDE)

    Energy Technology Data Exchange (ETDEWEB)

    1991-01-01

    This booklet is composed of abstracts from papers submitted at a meeting on quantitative NDE. A multitude of topics are discussed including analysis of composite materials, NMR uses, x-ray instruments and techniques, manufacturing uses, neural networks, eddy currents, stress measurements, magnetic materials, adhesive bonds, signal processing, NDE of mechanical structures, tomography,defect sizing, NDE of plastics and ceramics, new techniques, optical and electromagnetic techniques, and nonlinear techniques. (GHH)

  12. NDE Acoustic Microscopy Research Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — The purpose is to develop advanced, more effective high-resolution micro-NDE materials characterization methods using scanning acoustic microscopy. The laboratory's...

  13. NDE training activities at the EPRI NDE Center

    International Nuclear Information System (INIS)

    Pherigo, G.L.

    1988-01-01

    The three principal categories of training activity at the EPRI NDE Center are in-service inspection (ISI) training, technical skills training, and human resource development. The ISI training category, which addresses recently developed NDE technologies that are ready for field application, is divided into two areas. One area provides ongoing training and qualification service to boiling water reactor (BWR) utilities in accordance with the Coordination Plan for NRC/EPRI/BWROG Training and Qualification Activities of NDE Personnel. This plan specifically addresses the detection and sizing of intergranular stress corrosion cracking (IGSCC). The second area includes training activities for other recently developed NDE technologies. Courses in this area include weld overlay examination and advanced eddy current data analysis. The technical skills training is developed and offered to support the basic NDE technology needs of the utilities, with emphasis on utility applications. These programs are provided in direct response to generic or specific needs identified by the utility NDE community. The human resource development activities are focused on long-term utility needs through awareness programs for high schools, technical schools, and universities. These training programs are described

  14. NDE fo Sizewell B

    International Nuclear Information System (INIS)

    Baborovsky, V.M.; Whittle, M.J.

    1988-01-01

    A key feature of the safety case for Sizewell B is the extensive NDE proposed for all primary circuit components whose failure must be demonstrated to be incredible. These incredibility of failure components include the reactor pressure vessel, the pressurizer, steam generator shells and reactor coolant pump casings. All of them are to be inspected by repeated, independent inspections using diverse techniques to ensure the highest reliability. The inspections themselves are checked by an independent inspection validation center. This paper reviews the progress made in implementing the above proposals. A number of components have already been inspected, other inspections are imminent. The work has required major technical and administrative innovations and these are described

  15. NDE and plant life extension

    International Nuclear Information System (INIS)

    Liu, S.N.; Ammirato, F.V.; Nottingham, L.D.

    1991-01-01

    Component life extension is the process of making run-repair-replace decisions for plant components and includes a thorough analysis of the capability of the component to perform throughout the projected lifetime. For many critical plant components, nondestructive evaluation (NDE) is essential in determining whether the component can be operated safely and economically in the extended life period and to help utilities determine safe and economic inspection intervals. NDE technology is required for not only detecting defects that could grow to a size of concern during extended lifetimes, but also will be called upon to measure and monitor accumulating material degradation that strongly affects component reliability. This paper discusses the role of NDE in life extension by reviewing three examples--a reactor pressure vessel, steam turbine-generator rotors, and generator retaining rings. In each example, the contribution of NDE to life extension decisions is described. (author)

  16. NDE research at NASA Langley Research Center

    International Nuclear Information System (INIS)

    Heyman, J.S.

    1989-01-01

    The Nondestructive Measurement Science Branch at NASA Langley is the Agency's lead Center for NDE research. The focus of the laboratory is to improve the science base for NDE, evolve a more quantitative, interpretable technology to insure safety and reliability, and transfer that technology to the commercial sector. To address the broad needs of the Agency, the program has developed expertise in many areas, some of which are in ultrasonics, nonlinear acoustics, nano and microstructure characterization, thermal NDE, x-ray tomography, optical fiber sensors, magnetic probing, process monitoring sensors, and image/signal processing. The authors laboratory has recently dedicated its new 20,000 square foot research facility bringing the lab space to 30,000 square feet. The new facility includes a high bay for the x-ray CAT scanner, a revolutionary new concept in materials measurement. The CAT scanner is called QUEST, for quantitative experimental stress tomography lab. This system combines for the first time a microfocus x-ray source and detector with a fatigue load frame. Three dimensional imaging of density/geometry of the tested sample is thus possible during tension/compression loading. This system provides the first 3-D view of crack initiation, crack growth, phase transformation, bonded surface failure, creep-all with a density sensitivity of 0.1% and a resolution of about 25 microns (detectability of about 1 micron)

  17. The interaction of NDE and failure analysis

    International Nuclear Information System (INIS)

    Nichols, R.W.

    1988-01-01

    This paper deals with the use of Non-Destructive Examination (NDE) and failure analysis for the assessment of the structural integrity. It appears that failure analysis enables to know whether NDE is required or not, and can help to direct NDE into the most useful directions by identifying the areas where it is most important that defects are absent. It also appears that failure analysis can help the operator to decide which NDE method is best suited to the component studied and provides detailed specifications for this NDE method. The interaction between failure analysis and NDE is then described. (TEC)

  18. The interaction of NDE and failure analysis

    Energy Technology Data Exchange (ETDEWEB)

    Nichols, R W

    1988-12-31

    This paper deals with the use of Non-Destructive Examination (NDE) and failure analysis for the assessment of the structural integrity. It appears that failure analysis enables to know whether NDE is required or not, and can help to direct NDE into the most useful directions by identifying the areas where it is most important that defects are absent. It also appears that failure analysis can help the operator to decide which NDE method is best suited to the component studied and provides detailed specifications for this NDE method. The interaction between failure analysis and NDE is then described. (TEC).

  19. Investigation of a Novel NDE Method for Monitoring Thermomechanical Damage and Microstructure Evolution in Ferritic-Martensitic Steels for Generation IV Nuclear Energy Systems

    Energy Technology Data Exchange (ETDEWEB)

    Nagy, Peter

    2013-09-30

    materials. Through the results obtained from this integrated materials behavior and NDE study, new insight will be gained into the best nondestructive creep and microstructure monitoring methods for the particular mechanisms identified in these materials. The proposed project includes collaboration with a national laboratory partner and the results will also serve as a foundation to guide the efforts of scientists in the DOE laboratory, university, and industrial communities concerned with the technological challenges of monitoring creep and microstructural evolution in materials planned to be used in Generation IV Nuclear Energy Systems.

  20. NDE Big Data Framework, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — NDE data has become "Big Data", and is overwhelming the abilities of NDE technicians and commercially available tools to deal with it. In the current state of the...

  1. NASA DOE POD NDE Capabilities Data Book

    Science.gov (United States)

    Generazio, Edward R.

    2015-01-01

    This data book contains the Directed Design of Experiments for Validating Probability of Detection (POD) Capability of NDE Systems (DOEPOD) analyses of the nondestructive inspection data presented in the NTIAC, Nondestructive Evaluation (NDE) Capabilities Data Book, 3rd ed., NTIAC DB-97-02. DOEPOD is designed as a decision support system to validate inspection system, personnel, and protocol demonstrating 0.90 POD with 95% confidence at critical flaw sizes, a90/95. The test methodology used in DOEPOD is based on the field of statistical sequential analysis founded by Abraham Wald. Sequential analysis is a method of statistical inference whose characteristic feature is that the number of observations required by the procedure is not determined in advance of the experiment. The decision to terminate the experiment depends, at each stage, on the results of the observations previously made. A merit of the sequential method, as applied to testing statistical hypotheses, is that test procedures can be constructed which require, on average, a substantially smaller number of observations than equally reliable test procedures based on a predetermined number of observations.

  2. Computer Aided Feature Extraction, Classification and Acceptance Processing of Digital NDE Data

    National Research Council Canada - National Science Library

    Hildreth, Joseph

    1996-01-01

    ... from the inspection of solid rocket motors during fabrication. The computerized system, called the Automated NDE Data Evaluation System or ANDES, was developed under contract to Martin Marietta, now Lockheed Martin...

  3. NOAA JPSS Microwave Integrated Retrieval System (MIRS) Advanced Technology Microwave Sounder (ATMS) Precipitation and Surface Products from NDE

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset contains two-dimensional precipitation and surface products from the JPSS Microwave Integrated Retrieval System (MIRS) using sensor data from the...

  4. Review of progress in quantitative NDE

    International Nuclear Information System (INIS)

    1991-01-01

    This booklet is composed of abstracts from papers submitted at a meeting on quantitative NDE. A multitude of topics are discussed including analysis of composite materials, NMR uses, x-ray instruments and techniques, manufacturing uses, neural networks, eddy currents, stress measurements, magnetic materials, adhesive bonds, signal processing, NDE of mechanical structures, tomography,defect sizing, NDE of plastics and ceramics, new techniques, optical and electromagnetic techniques, and nonlinear techniques

  5. Application of X-ray NDE in treating with chemical weapons abandoned by Japan

    International Nuclear Information System (INIS)

    Wang Bairong; Zhang Guohua; Jiang Yishan

    2006-01-01

    According as need of treating with CW abandoned by Japan, this paper designs a X-ray NDE system for chemical weapons. It consist of X-ray shooting unit, control and identification unit and some assistant equipment. (authors)

  6. The application of X-ray NDE in treating with chemical weapons abandoned by Japan

    International Nuclear Information System (INIS)

    Wang Bairong; Jiang Yishan; Zhang Guohua

    2003-01-01

    According as need of treating with CW abandoned by Japan, this paper designs a X-ray NDE system for chemical weapons, it consist of X-ray shooting unit, control and identification unit and some assistant equipments

  7. Evaluation and improvement in nondestructive examination (NDE) reliability for inservice inspection of light water reactors

    International Nuclear Information System (INIS)

    Doctor, S.R.; Deffenbaugh, J.D.; Good, M.S.; Green, E.R.; Heasler, P.G.; Simonen, F.A.; Spanner, J.C.; Taylor, T.T.

    1988-01-01

    The Evaluation and Improvement of NDE Reliability for Inservice Inspection of Light Water Reactor (NDE Reliability) program at the Pacific Northwest Laboratory was established by the NRC to determine the reliability of current inservice inspection (ISI) techniques and to develop recommendations that will ensure a suitably high inspection reliability. The objectives of this program include determining the reliability of ISI performed on the primary systems of commercial light-water reactors (LWRs); using probabilistic fracture mechanics analysis to determine the impact of NDE unreliability on system safety; and evaluating reliability improvements that can be achieved with improved and advanced technology. A final objective is to formulate recommended revisions to ASME Code and Regulatory requirements, based on material properties, service conditions, and NDE uncertainties. The program scope is limited to ISI of the primary systems including the piping, vessel, and other inspected components. This is a progress report covering the programmatic work from October 1986 through September 1987

  8. Evaluation and improvement in nondestructive examination (NDE) reliability for inservice inspection of light water reactors

    International Nuclear Information System (INIS)

    Doctor, S.R.; Deffenbaugh, J.D.; Good, M.S.; Green, E.R.; Heasler, P.G.; Simonen, F.A.; Spanner, J.C.; Taylor, T.T.

    1988-01-01

    The Evaluation and Improvement of NDE Reliability for Inservice Inspection of Light Water Reactors (NDE Reliability) program at the Pacific Northwest Laboratory was established by the NRC to determine the reliability of current inservice inspection (ISI) techniques and to develop recommendations that will ensure a suitably high inspection reliability. The objectives of this program include determining the reliability of ISI performed on the primary systems of commercial light-water reactors (LWRs); using probabilistic fracture mechanics analysis to determine the impact of NDE unreliability on system safety; and evaluating reliability improvements that can be achieved with improved and advanced technology. A final objective is to formulate recommended revisions to ASME Code and Regulatory requirements, based on material properties, service conditions and NDE uncertainties. The program scope is limited to ISI of the primary systems including the piping, vessel, and other inspected components. This is a progress report covering the programmatic work from October 1986 through September 1987. (author)

  9. Nondestructive examination (NDE) Reliability for Inservice Inspection of Light Water Reactors

    International Nuclear Information System (INIS)

    Doctor, S.R.; Good, M.S.; Heasler, P.G.; Hockey, R.L.; Simonen, F.A.; Spanner, J.C.; Taylor, T.T.; Vo, T.V.

    1992-07-01

    The Evaluation and Improvement of NDE reliability for Inservice Inspection of Light Water Reactors (NDE Reliability) Program at the Pacific Northwest Laboratory was established by the Nuclear Regulatory Commission to determine the reliability of current inservice inspection (ISI) techniques and to develop recommendations that will ensure a suitably high inspection reliability. The objectives of this program include determining the reliability of ISI performed on the primary systems of commercial light-water reactors (LWRs); using probabilistic fracture mechanics analysis to determine the impact of NDE unreliability on system safety; and evaluating reliability improvements that can be achieved with improved and advanced technology. A final objective is to formulate recommended revisions to the Regulatory and ASME Code requirements, based on material properties, service conditions, and NDE uncertainties

  10. NDE Technology Development Program for Non-Visual Volumetric Inspection Technology; Sensor Effectiveness Testing Report

    Energy Technology Data Exchange (ETDEWEB)

    Moran, Traci L. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Larche, Michael R. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Denslow, Kayte M. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Glass, Samuel W. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2017-08-31

    The Pacific Northwest National Laboratory (PNNL) located in Richland, Washington, hosted and administered Sensor Effectiveness Testing that allowed four different participants to demonstrate the NDE volumetric inspection technologies that were previously demonstrated during the Technology Screening session. This document provides a Sensor Effectiveness Testing report for the final part of Phase I of a three-phase NDE Technology Development Program designed to identify and mature a system or set of non-visual volumetric NDE technologies for Hanford DST primary liner bottom inspection. Phase I of the program will baseline the performance of current or emerging non-visual volumetric NDE technologies for their ability to detect and characterize primary liner bottom flaws, and identify candidate technologies for adaptation and maturation for Phase II of the program.

  11. Terahertz NDE application for corrosion detection and evaluation under Shuttle tiles

    Science.gov (United States)

    Anastasi, Robert F.; Madaras, Eric I.; Seebo, Jeffrey P.; Smith, Stephen W.; Lomness, Janice K.; Hintze, Paul E.; Kammerer, Catherine C.; Winfree, William P.; Russell, Richard W.

    2007-04-01

    Pulsed Terahertz NDE is being examined as a method to inspect for possible corrosion under Space Shuttle Tiles. Other methods such as ultrasonics, infrared, eddy current and microwave technologies have demonstrable shortcomings for tile NDE. This work applies Terahertz NDE, in the frequency range between 50 GHz and 1 THz, for the inspection of manufactured corrosion samples. The samples consist of induced corrosion spots that range in diameter (2.54 to 15.2 mm) and depth (0.036 to 0.787 mm) in an aluminum substrate material covered with tiles. Results of these measurements are presented for known corrosion flaws both covered and uncovered and for blind tests with unknown corrosion flaws covered with attached tiles. The Terahertz NDE system is shown to detect all artificially manufactured corrosion regions under a Shuttle tile with a depth greater than 0.13 mm.

  12. Evaluation of pipe weld NDE indications

    International Nuclear Information System (INIS)

    Brasse, M.

    2007-01-01

    This paper discusses the evaluation of non-destructive examination (NDE) indications in pipe welds. The evaluation procedure is described in a practical engineer's view and examples are also given. (author)

  13. NDE Studies on CRDMs Removed From Service

    International Nuclear Information System (INIS)

    Doctor, Steven R.; Cumblidge, Stephen E.; Schuster, George J.; Hockey, Ronald L.; Abrefah, John

    2005-01-01

    Studies being conducted at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington are focused on assessing the effectiveness of NDE inspections of control rod drive mechanism (CRDM) nozzles and J-groove weldments. The primary objective of this work is to provide information to the United States Nuclear Regulatory Commission (US NRC) on the effectiveness of ultrasonic testing (UT) and eddy current testing (ET) as related to the in-service inspection of CRDM nozzles and J-groove weldments, and to enhance the knowledge base of primary water stress corrosion cracking (PWSCC) through destructive characterization of the CRDM assemblies. In describing two CRDM assemblies removed from service, decontaminated, and then used in a series of NDE measurements, this paper will address the following questions: (1) What did each technique detect?, (2) What did each technique miss?, (3) How accurately did each technique characterize the detected flaws? Two CRDM assemblies including the CRDM nozzle, the J-groove weld, buttering, and a portion of the ferritic head material were selected for this study. One contained suspected PWSCC, based on in-service inspection data; the other contained evidence suggesting through-wall leakage, but this was unconfirmed. The selected NDE measurements follow standard industry techniques for conducting in-service inspections of CRDM nozzles and the crown of the J-groove welds and buttering. In addition, laboratory based NDE methods will be employed to conduct inspections of the CRDM assemblies, with particular emphasis on inspecting the J-groove weld and buttering. This paper will also describe the NDE methods used and discuss the NDE results. Future work will involve using the results from these NDE studies to guide the development of a destructive characterization plan to reveal the crack morphology, to be compared with NDE responses

  14. Re-inventing NDE as science — How student ideas will help adapt NDE to the new ecosystem of science and technology

    Science.gov (United States)

    Meyendorf, Norbert

    2018-04-01

    Industry 4.0 stands for the fourth industrial revolution that is ongoing at present. Industry 4.0 is a terminology generally used in Europe to characterize the integration of production and communication technologies, the so called "smart factory". Lowering costs and efficient in-time production will be possible for low numbers of unique parts, for example by additive manufacturing (3D printing). A significant aspect is also quality and maintainability of these sometimes unique structures and components. NDE has to follow these trends, but introduce the capability of cyber systems into the inspection and maintenance processes. The author initiated in his NDE introductory class student projects where small groups of students had to identify everyday problems that can be solved by NDE techniques and suggest technical solutions based on today's technology. The results where exiting. After discussing the ecosystem and the present situation of NDE as a science, several of these ideas were presented. Let us listen to the ideas and needs of the young generation to re-invent NDE!

  15. NDE for the 21st century: industry 4.0 requires NDE 4.0 (Conference Presentation)

    Science.gov (United States)

    Meyendorf, Norbert G.

    2017-04-01

    Industry 4.0 stands for the fourth industrial revolution that is ongoing at present. Industry 4.0 is a terminology preferred used in Europe to characterize the integration of production and communication technologies, the so called "smart factory". The first industrial revolution was the mechanization of work. The second was mass production and the assembly line. While the third revolution was the computer integrated manufacturing. Industry 4.0 encompasses the complete networking of all industrial areas. Lowering costs and efficient in-time production will be possible also for low numbers of very unique parts for example by additive manufacturing (3D printing). A significant aspect is also quality and maintainability of these sometimes unique structures and components. NDE has to follow these trends, not only by adapting NDE techniques to the new technologies, but also introducing the capability of cyber systems into the inspection and maintenance processes. The requirements and challenges for this new technological area will be discussed. Chances for applications of new technologies and systems for NDE will be demonstrated online.

  16. Through the looking glass: The future for NDE?

    Science.gov (United States)

    Bond, Leonard J.

    2014-02-01

    Nondestructive testing (NDT) is a mature industry, with global equipment sales fast moving towards 2B. per year. The use of conventional NDT will grow in developing countries and in developed countries the challenges will include those associated with maintaining aging infrastructure. For some systems the future will move to structural health monitoring (SHM) and for others into integration of online measurements in manufacturing. Nondestructive Evaluation (NDE) is a multi-disciplinary area of endeavor that has its origins in materials science and NDT. It seeks to provide an adequate science base for NDT to become a quantitative science. It was seen to be necessary to better detect, size and type defects, improve the reliability of inspection, and probability of detection (POD). There is particular interest in estimating the potential defects could have on performance or potential for loss of structural integrity, under various loading or stressor conditions, and ultimately implement risk-based reliability assessments. NDE must be seen more as a part of the wide field of engineering, as an interdisciplinary endeavor, that brings together the expertise of materials science and metrology, together with the underlying physics for inspection methods, as well as statistics, computers, robotics and software. The adoption of advanced manufacturing, will require new metrology tools and methods to provide data for assessing new materials including powder metals, as used in additive manufacturing, and various composites. The lessons from the past proceedings of this conference series include that the problems faced today are harder than was expected during the first decade of quantitative NDE research. Even with new types of transducers and much improved A/D and powerful computers new approaches and more basic measurement physics being understood, new insights are needed to provide the data needed to solve many real-world NDE problems, to understand and measure early

  17. Piping inspection activities at the EPRI NDE Center

    International Nuclear Information System (INIS)

    Ammirato, F.V.

    1988-01-01

    Intergranular stress corrosion cracking (IGSCC) in the primary system of boiling water reactors (BWRs) has been a major reliability issue in recent years. BWR pipe cracking was first reported in 1974 with a low percentage of only small-diameter lines affected. However, with increased plant operating time, the number of reported cracking incidents has risen significantly and in 1982 and 1983 included the large-diameter recirculation lines. With the advent of cracking in large-diameter piping, innovative repair remedies were developed, such as weld overlay for repair (WOR). Although these remedies are effective in extending the service life of piping, they also present challenging NDE problems. The EPRI program for improving piping examination has aimed at systematically resolving the difficulties by optimizing techniques and procedures as well as by developing field-qualified automated examination equipment. The EPRI NDE Center's role has been the evaluation and transfer of the technology necessary to address the current piping examination problems of the nuclear utility industry. These activities normally include the following: technology assessment and improvement; validation through demonstrations and field trials; technology transfer reports, workshops, training, and qualification testing; and acquisition of relevant samples. The activities of the NDE Center are discussed

  18. NDE for Characterizing Oxidation Damage in Reinforced Carbon-Carbon

    Science.gov (United States)

    Roth, Don J.; Rauser, Richard W.; Jacobson, nathan S.; Wincheski, Russell A.; Walker, James L.; Cosgriff, Laura A.

    2009-01-01

    In this study, coated reinforced carbon-carbon (RCC) samples of similar structure and composition as that from the NASA space shuttle orbiter s thermal protection system were fabricated with slots in their coating simulating craze cracks. These specimens were used to study oxidation damage detection and characterization using NDE methods. These specimens were heat treated in air at 1143 and 1200 C to create cavities in the carbon substrate underneath the coating as oxygen reacted with the carbon and resulted in its consumption. The cavities varied in diameter from approximately 1 to 3 mm. Single-sided NDE methods were used since they might be practical for on-wing inspection, while x-ray micro-computed tomography (CT) was used to measure cavity sizes in order to validate oxidation models under development for carbon-carbon materials. An RCC sample having a naturally-cracked coating and subsequent oxidation damage was also studied with x-ray micro-CT. This effort is a follow-on study to one that characterized NDE methods for assessing oxidation damage in an RCC sample with drilled holes in the coating. The results of that study are briefly reviewed in this article as well. Additionally, a short discussion on the future role of simulation to aid in these studies is provided.

  19. Evaluation and improvement in nondestructive examination (NDE) reliability for in-service inspection of light water reactors

    International Nuclear Information System (INIS)

    Deffenbaugh, J.D.; Good, M.S.; Green, E.R.; Heasler, P.G.; Simonen, F.A.; Spanner, J.C.; Taylor, T.T.

    1988-01-01

    The evaluation and improvement of NDE Reliability for In-service Inspection (ISI) of Light Water Reactors (NDE Reliability) Program at Pacific Northwest Laboratory (PNL) was established to determine the reliability of current ISI techniques and to develop recommendations that will ensure a suitably high inspection reliability. The objectives of this NRC program are to: determine the reliability of ultrasonic ISI performed on commercial light-water reactor (LWR) primary systems; determine the impact of NDE unreliability on system safety and determine the level of inspection reliability required to ensure a suitably low failure probability using probabilistic fracture mechanics analysis; evaluate the degree of reliability improvement that could be achieved using improved and advanced NDE technique; and recommend revisions to ASME Code, Section XI, and Regulatory Requirements, based on material properties, service conditions, and NDE uncertainties, that will ensure suitably low failure probabilities. The program consists of three basic tasks: a Piping task, a Pressure Vessel task, and an Evaluation and Improvement in NDE Reliability task. The major efforts were concentrated in the Piping task and the Evaluation and Improvement in NDE Reliability task

  20. Fault-Tolerant NDE Data Reduction Framework, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — A distributed fault tolerant nondestructive evaluation (NDE) data reduction framework is proposed in which large NDE datasets are mapped to thousands to millions of...

  1. IVA Ultrasonic and Eddy Current NDE for ISS

    Data.gov (United States)

    National Aeronautics and Space Administration — The project intends to develop a combined Ultrasonic and Eddy Current nondestructive evaluation (NDE) instrument for IVA use on ISS. A suite of IVA and EVA NDE...

  2. Evaluation and improvement in nondestructive examination (NDE) reliability for inservice inspection of light water reactors

    International Nuclear Information System (INIS)

    Doctor, S.R.; Andersen, E.S.; Bowey, R.E.; Diaz, A.A.; Good, M.S.; Heasler, P.G.; Hockey, R.L.; Simonen, F.A.; Spanner, J.C.; Taylor, T.T.; Vo, T.V.

    1991-01-01

    This program is intended to establish the effectiveness, reliability and adequacy of inservice inspection of reactor pressure vessels and primary piping systems and the impact of ISI reliability on system integrity. The objectives of the program include: (a) determine the effectiveness and reliability of ultrasonic inservice inspection (ISI) performed on commercial, light water reactor pressure vessels and piping; (b) recommend Code changes to the inspection procedures to improve the reliability of ISI; (c) using fracture mechanics analysis, determine the impact of NDE unreliability on system safety and determine the level of inspection reliability required to assure a suitably low failure probability; (d) evaluate the degree of reliability improvement which could be achieved using improved NDE techniques; and (e) based on importance of component to safety, material properties, service conditions, and NDE uncertainties, formulate improved inservice inspection criteria (including sampling plan, frequency, and reliability of inspection) for revisions to ASME Section XI and regulatory requirements needed to assure suitably low failure probabilities

  3. The EPRI NDE center after five years

    International Nuclear Information System (INIS)

    Dau, G.J.; Nemzek, T.A.

    1985-01-01

    In 1979, the Electric Power Research Institute (EPRI) established a Nondestructive Evaluation (NDE) Center. The purpose of the Center is to provide the electric utility industry with a dedicated NDE development and field-use-qualification capability. Later, the scope of activities at the NDE Center was expanded. Beginning in 1980, the BWR Owners Group (IGSCC) provided funding necessary to operate the BWR Pipe Remedy Demonstration and Training Facility. In 1984, the Maintenance Equipment Applications Center was established by EPRI. Both functions are co-located within the NDE Center. All three functions share common objectives of providing the electric utility industry with a capability dedicated to assuring reduction to practice of new or improved technology, proof testing, qualification for field use, and obtaining code and regulatory acceptance of qualified methods and training. The purpose of this paper is to describe typical activities of the Center and some of the benefits that have accrued. The next section describes the Center organization, operation, and facility, while the remaining sections discuss the technology transfer thrust and benefits

  4. NDE and SHM Simulation for CFRP Composites

    Science.gov (United States)

    Leckey, Cara A. C.; Parker, F. Raymond

    2014-01-01

    Ultrasound-based nondestructive evaluation (NDE) is a common technique for damage detection in composite materials. There is a need for advanced NDE that goes beyond damage detection to damage quantification and characterization in order to enable data driven prognostics. The damage types that exist in carbon fiber-reinforced polymer (CFRP) composites include microcracking and delaminations, and can be initiated and grown via impact forces (due to ground vehicles, tool drops, bird strikes, etc), fatigue, and extreme environmental changes. X-ray microfocus computed tomography data, among other methods, have shown that these damage types often result in voids/discontinuities of a complex volumetric shape. The specific damage geometry and location within ply layers affect damage growth. Realistic threedimensional NDE and structural health monitoring (SHM) simulations can aid in the development and optimization of damage quantification and characterization techniques. This paper is an overview of ongoing work towards realistic NDE and SHM simulation tools for composites, and also discusses NASA's need for such simulation tools in aeronautics and spaceflight. The paper describes the development and implementation of a custom ultrasound simulation tool that is used to model ultrasonic wave interaction with realistic 3-dimensional damage in CFRP composites. The custom code uses elastodynamic finite integration technique and is parallelized to run efficiently on computing cluster or multicore machines.

  5. Nondestructive Examination (NDE) Reliability for Inservice Inspection of Light Water Reactors

    International Nuclear Information System (INIS)

    Doctor, S.R.; Diaz, A.A.; Friley, J.R.; Greenwood, M.S.; Heasler, P.G.; Kurtz, R.J.; Simonen, F.A.; Spanner, J.C.; Vo, T.V.

    1993-11-01

    The Evaluation and Improvement of NDE Reliability for Inservice inspection of Light Water Reactors (NDE Reliability) Program at the Pacific Northwest Laboratory was established by the Nuclear Regulatory Commission to determine the reliability of current inservice inspection (ISI) techniques and to develop recommendations that will ensure a suitably high inspection reliability. The objectives of this program include determining the reliability of ISI performed on the primary systems of commercial light-water reactors (LWRs);using probabilistic fracture mechanics analysis to determine the impact of NDE unreliability on system safety; and evaluating reliability improvements that can be achieved with improved and advanced technology. A final objective is to formulate recommended revisions to the Regulatory and ASME Code requirements, based on material properties, service conditions, and NDE uncertainties. The program scope is limited to ISI of the primary systems including the piping, vessel and other components inspected in accordance with Section XI of the ASME Code. This is a programs report covering the programmatic work from April 1992 through September 1992

  6. Nondestructive examination (NDE) reliability for inservice inspection of light water reactors

    International Nuclear Information System (INIS)

    Doctor, S.R.; Good, M.S.; Green, E.R.; Heasler, P.G.; Simonen, F.A.; Spanner, J.C.; Taylor, T.T.; Vo, T.V.

    1991-08-01

    The Evaluation and Improvement of NDE Reliability for Inservice Inspection of Light Water Reactors (NDE Reliability) Program at the Pacific Northwest Laboratory was established by the Nuclear Regulatory Commission to determine the reliability of current inservice inspection (ISI) techniques and to develop recommendations that will ensure a suitably high inspection reliability. The objectives of this program include determining the reliability of ISI performed on the primary systems of commercial light-water reactors (LWRs); using probabilistic fracture mechanics analysis to determine the impact of NDE unreliability on system safety; and evaluating reliability improvements that can be achieved with improved and advanced technology. A final objective is to formulate recommended revisions to ASME Code and Regulatory requirements, based on material properties, service conditions, and NDE uncertainties. The program scope is limited to ISI of the primary systems including the piping, vessel, and other components inspected in accordance with Section 6 of the ASME Code. This is a progress report covering the pro grammatic work from April 1989 through September 1989. 12 refs., 4 figs. 5 tabs

  7. Nondestructive examination (NDE) reliability for inservice inspection of light waters reactors

    International Nuclear Information System (INIS)

    Doctor, S.R.; Deffenbaugh, J.D.; Good, M.S.; Green, E.R.; Heasler, P.G.; Simonen, F.A.; Spanner, J.C.; Taylor, T.T.

    1989-11-01

    Evaluation and Improvement of NDE Reliability for Inservice Inspection of Light Water Reactors (NDE Reliability) Program at the Pacific Northwest Laboratory was established by the Nuclear Regulatory Commission to determine the reliability of current inservice inspection (ISI) techniques and to develop recommendations that will ensure a suitably high inspection reliability. The objectives of this program include determining the reliability of ISI performed on the primary systems of commercial light-water reactors (LWRs); using probabilistic fracture mechanics analysis to determine the impact of NDE unreliability on system safety; and evaluating reliability improvements that can be achieved with improved and advanced technology. A final objective is to formulate recommended revisions to ASME Code and Regulatory requirements, based on material properties, service conditions, and NDE uncertainties. The program scope is limited to ISI of the primary systems including the piping, vessel, and other inspected components. This is a progress report covering the programmatic work from April 1988 through September 1988. 33 refs., 70 figs., 12 tabs

  8. Nondestructive examination (NDE) reliability for inservice inspection of light water reactors

    International Nuclear Information System (INIS)

    Doctor, S.R.; Deffenbaugh, J.D.; Good, M.S.; Green, E.R.; Heasler, P.G.; Simonen, F.A.; Spanner, J.C.; Taylor, T.T.

    1989-10-01

    The Evaluation and Improvement of NDE Reliability for Inservice Inspection of Light Water Reactors (NDE Reliability) Program at the Pacific Northwest Laboratory was established by the Nuclear Regulatory Commission to determine the reliability of current inservice inspection (ISI) techniques and to develop recommendations that will ensure a suitably high inspection reliability. The objectives of this program include determining the reliability of ISI performed on the primary systems of commercial light-water reactors (LWRs); using probabilistic fracture mechanics analysis to determine the impact of NDE unreliability on system safety; and evaluating reliability improvement that can be achieved with improved and advanced technology. A final objective is to formulate recommended revisions to ASME Code and Regulatory requirements based on material properties, service conditions, and NDE capabilities and uncertainties. The program scope is limited to ISI of the primary systems including the piping, vessel, and other inspected components. This is a progress report covering the programmatic work from October 1987 through March 1988. 21 refs., 28 figs., 2 tabs

  9. Nondestructive Examination (NDE) Reliability for Inservice Inspection of Light Water Reactors

    International Nuclear Information System (INIS)

    Doctor, S.R.; Diaz, A.A.; Friley, J.R.; Good, M.S.; Greenwood, M.S.; Heasler, P.G.; Hockey, R.L.; Kurtz, R.J.; Simonen, F.A.; Spanner, J.C.; Taylor, T.T.; Vo, T.V.

    1992-07-01

    The Evaluation and Improvement of NDE Reliability for Inservice Inspection of Light Water Reactors (NDE Reliability) Program at the Pacific Northwest Laboratory was established by the Nuclear Regulatory Commission to determine the reliability of current inservice inspection (ISI) techniques and to develop recommendations that will ensure a suitably high inspection reliability. The objectives of this program include determining the reliability of ISI performed on the primary systems of commercial light-water reactors (LWR's); using probabilistic fracture mechanics analysis to determine the impact of NDE unreliability on system safety; and evaluating reliability improvements that can be achieved with improved and advanced technology. A final objective is to formulate recommended revisions to the Regulatory and ASME Code requirements, based on material properties, service conditions, and NDE uncertainties. The program scope is limited to ISI of the primary systems including the piping, vessel, and other components inspected in accordance with Section XI of the ASME Code. This is a progress report covering the programmatic work from April 1991 through September 1991

  10. Nondestructive Examination (NDE) Reliability for Inservice Inspection of Light Water Reactors

    International Nuclear Information System (INIS)

    Doctor, S.R.; Diaz, A.A.; Friley, J.R.

    1993-09-01

    The Evaluation and Improvement of NDE Reliability for Inservice Inspection of Light Water Reactors (NDE Reliability) Program at the Pacific Northwest Laboratory was established by the Nuclear Regulatory Commission to determine the reliability of current inservice inspection (ISI) techniques and to develop recommendations that will ensure a suitably high inspection reliability. The objectives of this program include determining the reliability of ISI performed on the primary systems of commercial light-water reactors (LWRs); using probabilistic fracture mechanics analysis to determine the impact of NDE unreliability on system safety; and evaluating reliability improvements that can be achieved with improved and advanced technology. A final objective is to formulate recommended revisions to ASME Code and Regulatory requirements, based on material properties, service conditions, and NDE uncertainties. The program scope is limited to ISI of the primary systems including the piping, vessel, and other components inspected in accordance with Section XI of the ASME Code. This is a progress report covering the programmatic work from October 1991 through March 1992

  11. NDE of ceramic insulator blanks by radiography

    International Nuclear Information System (INIS)

    Sarvanan, S.; Venkatraman, B.; Jayakumar, T.; Baldev Raj

    1996-01-01

    The production of ceramic insulators in electrical industry involves a number of steps, one of which is the green blank. The defects such as voids and crack can be present in the extruded green blank. One of the best non-destructive evaluation (NDE) technique radiography. This paper deals with the development of methodology based on theoretical modeling for the examination of ceramics by high sensitivity radiography. (author)

  12. Invariance algorithms for processing NDE signals

    Science.gov (United States)

    Mandayam, Shreekanth; Udpa, Lalita; Udpa, Satish S.; Lord, William

    1996-11-01

    Signals that are obtained in a variety of nondestructive evaluation (NDE) processes capture information not only about the characteristics of the flaw, but also reflect variations in the specimen's material properties. Such signal changes may be viewed as anomalies that could obscure defect related information. An example of this situation occurs during in-line inspection of gas transmission pipelines. The magnetic flux leakage (MFL) method is used to conduct noninvasive measurements of the integrity of the pipe-wall. The MFL signals contain information both about the permeability of the pipe-wall and the dimensions of the flaw. Similar operational effects can be found in other NDE processes. This paper presents algorithms to render NDE signals invariant to selected test parameters, while retaining defect related information. Wavelet transform based neural network techniques are employed to develop the invariance algorithms. The invariance transformation is shown to be a necessary pre-processing step for subsequent defect characterization and visualization schemes. Results demonstrating the successful application of the method are presented.

  13. Final report on the development of a disturbanceless NDE compact cooling device; Abschlussbericht zur Entwicklung einer stoerarmen maschinellen NDE-Kompaktkuehlung

    Energy Technology Data Exchange (ETDEWEB)

    Kaiser, G.

    2002-08-13

    The project comprised the following aspects: 1. Development of a disturbance-free, mechanized compact cooling system for a NDE measuring system on the basis of a commercial SL200-10 split stirling cooling system of AEG Infrarotmodule GmbH, Heilbronn; 2. Support of the development work at the HTSL/Hall magnetometer of Friedrich-Schiller University, Jena; 3. Measurements of HTSL/Hall magnetometer samples and thermal characterisation. [German] Im Rahmen dieses Vorhabens wurden die folgenden Aufgabenstellungen behandelt: 1. Entwicklung einer stoerarmen, maschinellen Kompaktkuehlung fuer ein NDE-Messsystem auf der Basis eines kommerziellen Split-Stirlingkuehlers SL200-10 der Firma AEG Infrarotmodule GmbH, Heilbronn, 2. Unterstuetzung der Entwicklungsarbeiten am HTSL/Hall-Magnetometer, die bei der Friedrich-Schiller-Universitaet in Jena durchgefuehrt wurden, 3. Messungen an HTSL/Hall-Magnetometer-Proben zu deren thermischer Charakterisierung. (orig.)

  14. NDE reliability and probability of detection (POD) evolution and paradigm shift

    Energy Technology Data Exchange (ETDEWEB)

    Singh, Surendra [NDE Engineering, Materials and Process Engineering, Honeywell Aerospace, Phoenix, AZ 85034 (United States)

    2014-02-18

    The subject of NDE Reliability and POD has gone through multiple phases since its humble beginning in the late 1960s. This was followed by several programs including the important one nicknamed “Have Cracks – Will Travel” or in short “Have Cracks” by Lockheed Georgia Company for US Air Force during 1974–1978. This and other studies ultimately led to a series of developments in the field of reliability and POD starting from the introduction of fracture mechanics and Damaged Tolerant Design (DTD) to statistical framework by Bernes and Hovey in 1981 for POD estimation to MIL-STD HDBK 1823 (1999) and 1823A (2009). During the last decade, various groups and researchers have further studied the reliability and POD using Model Assisted POD (MAPOD), Simulation Assisted POD (SAPOD), and applying Bayesian Statistics. All and each of these developments had one objective, i.e., improving accuracy of life prediction in components that to a large extent depends on the reliability and capability of NDE methods. Therefore, it is essential to have a reliable detection and sizing of large flaws in components. Currently, POD is used for studying reliability and capability of NDE methods, though POD data offers no absolute truth regarding NDE reliability, i.e., system capability, effects of flaw morphology, and quantifying the human factors. Furthermore, reliability and POD have been reported alike in meaning but POD is not NDE reliability. POD is a subset of the reliability that consists of six phases: 1) samples selection using DOE, 2) NDE equipment setup and calibration, 3) System Measurement Evaluation (SME) including Gage Repeatability and Reproducibility (Gage R and R) and Analysis Of Variance (ANOVA), 4) NDE system capability and electronic and physical saturation, 5) acquiring and fitting data to a model, and data analysis, and 6) POD estimation. This paper provides an overview of all major POD milestones for the last several decades and discuss rationale for using

  15. Global NDE Best Practice for Technology Improvement, Outage Management, Foreign Material Exclusion and Dose Control

    International Nuclear Information System (INIS)

    Glass, S. W.; Mohr, F.

    2010-01-01

    Non Destructive Examination (NDE) is a critical element of both Boiling Water and Pressurized Water Reactor outages. Frequently this includes critical path activity so both the utility and the inspection vendor are under intense pressure to perform the work quickly. Concurrent with AREVA's new global organization of NDE resources, AREVA NDE SOLUTIONS, efforts have intensified for global application of lessons learned and best practices. These best practices include new developments as well as continuous improvements to well established tools and NDE techniques. Advancements range from steam generator robots, advanced steam generator deposit characterization sensors and method, new phased array approaches for PWR and BWR reactor vessel examination, new sensors and approaches for RPV head examinations, plus advanced internals examination robots and methods. In addition to specialized tools and techniques, best practice includes numerous management innovations. AREVA's multi-disciplined integrated nuclear worker strategy helps to minimize the total number of personnel deployed to multi-task outages. Specific design and on-site practice has been implemented to minimize or eliminate foreign material from the reactor system and vigorous pursuit of dose management practices keeps our nuclear worker dose as low as reasonably achievable. The industry is moving to much more conservative nuclear worker dose limits. While this is proving to be an issue with many vendors, AREVA has had an internal policy of <2R since 2006. Globalizing the organization also helps AREVA manage peaks and unplanned emergency inspections from an enlarged pool of globally qualified inspection personnel and tools. (Author)

  16. Standard compliance - NDE performance demonstration/inspection in the CANDU industry

    International Nuclear Information System (INIS)

    Choi, E.

    2011-01-01

    CANDU nuclear power plants are operated in 3 provinces in Canada for electric power generation. A table in the paper will show the built and operating plants in Ontario, Quebec, New Brunswick and overseas. The regulator for nuclear power in Canada is the Canadian Nuclear Safety Commission (CNSC). The CNSC holds the plant licensees accountable for compliance to CSA N285.4 for periodic inspections. The Standard basically specifies the 'what, when, where, how, how much and how frequently' NDE is to be done on pressure retaining systems and components in CANDU nuclear power plants. In inspection methods, the Standard specifies they must be non-destructive. The NDE methods were grouped into visual, dimensional, surface, volumetric and integrative. The Standard also specifies that the licensees are responsible for the performance demonstration (PD) of the adequacy of the procedures and the proficiency of the personnel. This paper describes the Standard's requirement in NDE qualification and presents a joint project participated by Canadian and overseas CANDU owners. The sub-project for NDE included providing evidence and technical justification on the adequacy of the procedures and the proficiency of the personnel. The paper describes the qualification methodology followed by the participants. This will be followed by how the participants produced Inspection Specification, tools and procedures, personnel training and qualification programs, test and qualification samples, independent peer reviews and Technical Justification. (author)

  17. Probability of Detection (POD) Analysis for the Advanced Retirement for Cause (RFC)/Engine Structural Integrity Program (ENSIP) Nondestructive Evaluation (NDE) System-Volume 3: Material Correlation Study

    National Research Council Canada - National Science Library

    Berens, Alan

    2000-01-01

    .... Volume 1 presents a description of changes made to the probability of detection (POD) analysis program of Mil-STD-1823 and the statistical evaluation of modifications that were made to version 3 of the Eddy Current Inspection System (ECIS v3...

  18. Evaluation of Acoustic Emission NDE of Composite Crew Module Service Module/Alternate Launch Abort System (CCM SM/ALAS) Test Article Failure Tests

    Science.gov (United States)

    Horne, Michael R.; Madaras, Eric I.

    2010-01-01

    Failure tests of CCM SM/ALAS (Composite Crew Module Service Module / Alternate Launch Abort System) composite panels were conducted during July 10, 2008 and July 24, 2008 at Langley Research Center. This is a report of the analysis of the Acoustic Emission (AE) data collected during those tests.

  19. NDE Assessment of PWSCC in Control Rod Drive Mechanism Housings

    International Nuclear Information System (INIS)

    Doctor, Steven R.; Cumblidge, Stephen E.; Schuster, George J.; Harris, Rob V.; Crawford, Susan L.

    2006-01-01

    Studies being conducted at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington are focused on assessing the effectiveness of Nondestructive examination (NDE) techniques for inspecting control rod drive mechanism (CRDM) nozzles and J-groove weldments. The primary objective of this work is to provide information to the United States Nuclear Regulatory Commission (US NRC) on the effectiveness of NDE methods as related to the in-service inspection of CRDM nozzles and J-groove weldments, and to enhance the knowledge base of primary water stress corrosion cracking (PWSCC) through destructive characterization of the CRDM assemblies. In describing two CRDM assemblies removed from service, decontaminated, and then used in a series of NDE measurements, this paper will address the following questions: (1) What did each technique detect?, (2) What did each technique miss?, (3) How accurately did each technique characterize the detected flaws? Two CRDM assemblies including the CRDM nozzle, the J-groove weld, buttering, and a portion of the ferritic head material were selected for this study. One contained suspected PWSCC, based on in-service inspection data and through-wall leakage; the other contained evidence suggesting through-wall leakage, but this was unconfirmed. The selected NDE measurements follow standard industry techniques for conducting in-service inspections of CRDM nozzles and the crown of the J-groove welds and buttering. In addition, laboratory based NDE methods were employed to conduct inspections of the CRDM assemblies, with particular emphasis on inspecting the J-groove weld and buttering. This paper will also describe the NDE methods used and discuss the NDE results. Future work will involve using the results from these NDE studies to guide the development of a destructive characterization plan to reveal the crack morphology and a comparison of the degradation found by the destructive evaluation with the recorded NDE responses.

  20. The middle ground of the NDE R and D spectrum

    International Nuclear Information System (INIS)

    Burte, H.M.; Chimenti, D.E.; Thompson, D.O.; Thompson, R.B.

    1983-01-01

    This keynote talk attempts to call attention to the interdisciplinary nature of NDE (nondestructive evaluation) science and technology and introduce some approaches for fostering R and D in such a situation. The objectives of DARPA, the Air Force core program for developing a science base for NDE are described. Finally, several exploratory development programs are investigated. The needs addressed by NDE include performance demands, safety, conservation, productivity with quality, and minimization of life cycle costs. The science base for electromagnetic techniques includes eddy-current flaw interactions, inversion techniques, and probe figures-of-merit. The problem of inspection reliability is addressed, and an accept-reject methodology schematicized. A methodology for approaching the middle ground of the NDE R and D spectrum is outlined. Finally, future possibilities such as the characterization of flaws in ceramics, transducer understanding, new electromagnetic probes, and thermal wave imaging are also discussed

  1. Reliably detectable flaw size for NDE methods that use calibration

    Science.gov (United States)

    Koshti, Ajay M.

    2017-04-01

    Probability of detection (POD) analysis is used in assessing reliably detectable flaw size in nondestructive evaluation (NDE). MIL-HDBK-1823 and associated mh18232 POD software gives most common methods of POD analysis. In this paper, POD analysis is applied to an NDE method, such as eddy current testing, where calibration is used. NDE calibration standards have known size artificial flaws such as electro-discharge machined (EDM) notches and flat bottom hole (FBH) reflectors which are used to set instrument sensitivity for detection of real flaws. Real flaws such as cracks and crack-like flaws are desired to be detected using these NDE methods. A reliably detectable crack size is required for safe life analysis of fracture critical parts. Therefore, it is important to correlate signal responses from real flaws with signal responses form artificial flaws used in calibration process to determine reliably detectable flaw size.

  2. NDE Techniques Used in PARENT Open Round Robin Testing

    Energy Technology Data Exchange (ETDEWEB)

    Meyer, Ryan M. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2014-11-05

    This is a draft technical letter report for NRC client describing the NDE techniques used in the open testing portion of the Program to Assess the Reliability of Emerging Nondestructive Techniques (PARENT).

  3. NDE to Manage Atmospheric SCC in Canisters for Dry Storage of Spent Fuel: An Assessment

    Energy Technology Data Exchange (ETDEWEB)

    Meyer, Ryan M. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Pardini, Allan F. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Cuta, Judith M. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Adkins, Harold E. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Casella, Andrew M. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Qiao, Hong [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Larche, Michael R. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Diaz, Aaron A. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Doctor, Steven R. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2013-09-01

    This report documents efforts to assess representative horizontal (Transuclear NUHOMS®) and vertical (Holtec HI-STORM) storage systems for the implementation of non-destructive examination (NDE) methods or techniques to manage atmospheric stress corrosion cracking (SCC) in canisters for dry storage of used nuclear fuel. The assessment is conducted by assessing accessibility and deployment, environmental compatibility, and applicability of NDE methods. A recommendation of this assessment is to focus on bulk ultrasonic and eddy current techniques for direct canister monitoring of atmospheric SCC. This assessment also highlights canister regions that may be most vulnerable to atmospheric SCC to guide the use of bulk ultrasonic and eddy current examinations. An assessment of accessibility also identifies canister regions that are easiest and more difficult to access through the ventilation paths of the concrete shielding modules. A conceivable sampling strategy for canister inspections is to sample only the easiest to access portions of vulnerable regions. There are aspects to performing an NDE inspection of dry canister storage system (DCSS) canisters for atmospheric SCC that have not been addressed in previous performance studies. These aspects provide the basis for recommendations of future efforts to determine the capability and performance of eddy current and bulk ultrasonic examinations for atmospheric SCC in DCSS canisters. Finally, other important areas of investigation are identified including the development of instrumented surveillance specimens to identify when conditions are conducive for atmospheric SCC, characterization of atmospheric SCC morphology, and an assessment of air flow patterns over canister surfaces and their influence on chloride deposition.

  4. Trends in NDE science and technology: proceedings of the fourteenth world conference on NDT. V. 1

    International Nuclear Information System (INIS)

    Krishnadas Nair, C.G.; Baldev Raj; Murthy, C.R.L.; Jayakumar, T.

    1996-01-01

    The multi volume proceedings of the 14th World Conference on Nondestructive Testing (NDT) cover the applications of Nondestructive Evaluation (NDE) in a wide range of industries, viz. aerospace, chemical, defence, manufacturing, nuclear etc. and for different materials. The major topics covered under it are NDE in nuclear industry, NDE of tubes and bars, non destructive evaluation of composites, NDE of concrete, non destructive evaluation of stresses, NDE of defects, condition monitoring, vibration monitoring, life prediction and NDE for medical applications. Papers relevant to INIS from this volume are indexed separately

  5. Trends in NDE science and technology: proceedings of the fourteenth world conference on NDT. V. 3

    International Nuclear Information System (INIS)

    Krishnadas Nair, C.G.; Baldev Raj; Murthy, C.R.L.; Jayakumar, T.

    1996-01-01

    The multi volume proceedings of the 14th World Conference on Nondestructive Testing (NDT) cover the applications of Non destructive Evaluation (NDE) in a wide range of industries, viz. aerospace, chemical, defence, manufacturing, nuclear etc. and for different materials. The major topics covered under it are NDE in nuclear industry, NDE of tubes and bars, non destructive evaluation of composites, NDE of concrete, non destructive evaluation of stresses, NDE of defects, condition monitoring, vibration monitoring, life prediction and NDE for medical applications. Papers relevant to INIS from this volume are indexed separately

  6. Trends in NDE science and technology: proceedings of the fourteenth world conference on NDT. V. 2

    International Nuclear Information System (INIS)

    Krishnadas Nair, C.G.; Baldev Raj; Murthy, C.R.L.; Jayakumar, T.

    1996-01-01

    The multi volume proceedings of the 14th World Conference on Nondestructive Testing (NDT) cover the applications of Nondestructive Evaluation (NDE) in a wide range of industries, viz. aerospace, chemical, defence, manufacturing, nuclear etc. and for different materials. The major topics covered under it are NDE in nuclear industry, NDE of tubes and bars, non destructive evaluation of composites, NDE of concrete, non destructive evaluation of stresses, NDE of defects, condition monitoring, vibration monitoring, life prediction and NDE for medical applications. Papers relevant to INIS from this volume are indexed separately

  7. Trends in NDE science and technology: proceedings of the fourteenth world conference on NDT. V. 4

    International Nuclear Information System (INIS)

    Krishnadas Nair, C.G.; Baldev Raj; Murthy, C.R.L.; Jayakumar, T.

    1996-01-01

    The multi volume proceedings of the 14th World Conference on Nondestructive Testing (NDT) cover the applications of Nondestructive Evaluation (NDE) in a wide range of industries, viz. aerospace, chemical, defence, manufacturing, nuclear etc. and for different materials. The major topics covered under it are NDE in nuclear industry, NDE of tubes and bars, non destructive evaluation of composites, NDE of concrete, non destructive evaluation of stresses, NDE of defects, condition monitoring, vibration monitoring, life prediction and NDE for medical applications. Papers relevant to INIS from this volume are indexed separately

  8. Trends in NDE science and technology: proceedings of the fourteenth world conference on NDT V. 5

    International Nuclear Information System (INIS)

    Krishnadas Nair, C.J.; Baldev Raj; Murthy, C.R.L.; Jayakumar, T.

    1996-01-01

    The multi volume proceedings of the 14th World Conference on Nondestructive Testing (NDT) cover the applications of Nondestructive Evaluation (NDE) in a wide range of industries, viz. aerospace, chemical, defence, manufacturing, nuclear etc. and for different materials. The major topics covered under it are NDE in nuclear industry, NDE of tubes and bars, non destructive evaluation of composites, NDE of concrete, non destructive evaluation of stresses, NDE of defects, condition monitoring, vibration monitoring, life prediction and NDE for medical applications. Papers relevant to INIS from this volume are indexed separately

  9. Quantitative NDE of Composite Structures at NASA

    Science.gov (United States)

    Cramer, K. Elliott; Leckey, Cara A. C.; Howell, Patricia A.; Johnston, Patrick H.; Burke, Eric R.; Zalameda, Joseph N.; Winfree, William P.; Seebo, Jeffery P.

    2015-01-01

    The use of composite materials continues to increase in the aerospace community due to the potential benefits of reduced weight, increased strength, and manufacturability. Ongoing work at NASA involves the use of the large-scale composite structures for spacecraft (payload shrouds, cryotanks, crew modules, etc). NASA is also working to enable the use and certification of composites in aircraft structures through the Advanced Composites Project (ACP). The rapid, in situ characterization of a wide range of the composite materials and structures has become a critical concern for the industry. In many applications it is necessary to monitor changes in these materials over a long time. The quantitative characterization of composite defects such as fiber waviness, reduced bond strength, delamination damage, and microcracking are of particular interest. The research approaches of NASA's Nondestructive Evaluation Sciences Branch include investigation of conventional, guided wave, and phase sensitive ultrasonic methods, infrared thermography and x-ray computed tomography techniques. The use of simulation tools for optimizing and developing these methods is also an active area of research. This paper will focus on current research activities related to large area NDE for rapidly characterizing aerospace composites.

  10. Ultrasonic NDE Simulation for Composite Manufacturing Defects

    Science.gov (United States)

    Leckey, Cara A. C.; Juarez, Peter D.

    2016-01-01

    The increased use of composites in aerospace components is expected to continue into the future. The large scale use of composites in aerospace necessitates the development of composite-appropriate nondestructive evaluation (NDE) methods to quantitatively characterize defects in as-manufactured parts and damage incurred during or post manufacturing. Ultrasonic techniques are one of the most common approaches for defect/damage detection in composite materials. One key technical challenge area included in NASA's Advanced Composite's Project is to develop optimized rapid inspection methods for composite materials. Common manufacturing defects in carbon fiber reinforced polymer (CFRP) composites include fiber waviness (in-plane and out-of-plane), porosity, and disbonds; among others. This paper is an overview of ongoing work to develop ultrasonic wavefield based methods for characterizing manufacturing waviness defects. The paper describes the development and implementation of a custom ultrasound simulation tool that is used to model ultrasonic wave interaction with in-plane fiber waviness (also known as marcelling). Wavefield data processing methods are applied to the simulation data to explore possible routes for quantitative defect characterization.

  11. Qualification of NDE personnel in the nuclear industry

    International Nuclear Information System (INIS)

    Epps, T.N.

    1984-01-01

    There has been evidence of ineffective programs for certifying nondestructive examination (NDE) personnel who conduct periodic inservice examinations in nuclear power plants under ASME Section XI Code requirements. This was brought to the attention of a group from the electric utility industry, the Electric Power Research Institute (EPRI), some NDE consultants and representatives from the American Society of Mechanical Engineers (ASME) by the Nuclear Regulatory Commission (NRC) in a May, 1982 meeting in Bethesda, Maryland. One problem pointed out by the NRC was the lack of a clear definition of qualification requirements for certification of NDE personnel who conduct ASME Section XI Inservice Inspection work in nuclear power plants. The NRC requested that the nuclear industry resolve this problem by formulating definitive qualification requirements for personnel certification that could be made an industry requirement. In June, 1982 the EPRI NDE Subcommittee held a general meeting for utility representatives to discuss the results of the May, 1982 meeting to develop a plan for industry response to the issue. The consensus was that an Ad Hoc Committee of utility representatives be convened to develop a document outlining qualification requirements for vertification of NDE personnel. The Ad Hoc Committee was formally convened on September 29, 1982

  12. An Integrated NDE and FEM Characterization of Composite Rotors

    Science.gov (United States)

    Abdul-Aziz, Ali; Baaklini, George Y.; Trudell, Jeffrey J.

    2000-01-01

    A structural assessment by integrating finite-element methods (FEM) and a nondestructive evaluation (NDE) of two flywheel rotor assemblies is presented. Composite rotor A is pancake like with a solid hub design, and composite rotor B is cylindrical with a hollow hub design. Detailed analyses under combined centrifugal and interference-fit loading are performed. Two- and three-dimensional stress analyses and two-dimensional fracture mechanics analyses are conducted. A comparison of the structural analysis results obtained with those extracted via NDE findings is reported. Contact effects due to press-fit conditions are evaluated. Stress results generated from the finite-element analyses were corroborated with the analytical solution. Cracks due to rotational loading up to 49 000 rpm for rotor A and 34 000 rpm for rotor B were successfully imaged with NDE and predicted with FEM and fracture mechanics analyses. A procedure that extends current structural analysis to a life prediction tool is also defined.

  13. Preview of the NASA NNWG NDE Sample Preparation Handbook

    Science.gov (United States)

    2010-01-01

    This viewgraph presents a step-by-step how-to fabrication documentation of every kind of sample that is fabricated for MSFC by UA Huntsville, including photos and illustrations. The tabulation of what kind of samples are being fabricated for what NDE method, detailed instructions/documentation of the inclusion/creation of defects, detailed specifications for materials, processes, and equipment, case histories and/or experiences with the different fabrication methods and defect inclusion techniques, discussion of pitfalls and difficulties associated with sample fabrication and defect inclusion techniques, and a discussion of why certain fabrication techniques are needed as related to the specific NDE methods are included in this presentation.

  14. Eddy current NDE performance demonstrations using simulation tools

    International Nuclear Information System (INIS)

    Maurice, L.; Costan, V.; Guillot, E.; Thomas, P.

    2013-01-01

    To carry out performance demonstrations of the Eddy-Current NDE processes applied on French nuclear power plants, EDF studies the possibility of using simulation tools as an alternative to measurements on steam generator tube mocks-up. This paper focuses on the strategy led by EDF to assess and use code C armel3D and Civa, on the case of Eddy-Current NDE on wears problem which may appear in the U-shape region of steam generator tubes due to the rubbing of anti-vibration bars.

  15. The NDE1 genomic locus can affect treatment of psychiatric illness through gene expression changes related to microRNA-484.

    Science.gov (United States)

    Bradshaw, Nicholas J; Ukkola-Vuoti, Liisa; Pankakoski, Maiju; Zheutlin, Amanda B; Ortega-Alonso, Alfredo; Torniainen-Holm, Minna; Sinha, Vishal; Therman, Sebastian; Paunio, Tiina; Suvisaari, Jaana; Lönnqvist, Jouko; Cannon, Tyrone D; Haukka, Jari; Hennah, William

    2017-11-01

    Genetic studies of familial schizophrenia in Finland have observed significant associations with a group of biologically related genes, DISC1 , NDE1 , NDEL1 , PDE4B and PDE4D , the 'DISC1 network'. Here, we use gene expression and psychoactive medication use data to study their biological consequences and potential treatment implications. Gene expression levels were determined in 64 individuals from 18 families, while prescription medication information has been collected over a 10-year period for 931 affected individuals. We demonstrate that the NDE1 SNP rs2242549 associates with significant changes in gene expression for 2908 probes (2542 genes), of which 794 probes (719 genes) were replicable. A significant number of the genes altered were predicted targets of microRNA-484 ( p = 3.0 × 10 -8 ), located on a non-coding exon of NDE1 Variants within the NDE1 locus also displayed significant genotype by gender interaction to early cessation of psychoactive medications metabolized by CYP2C19. Furthermore, we demonstrate that miR-484 can affect the expression of CYP2C19 in a cell culture system. Thus, variation at the NDE1 locus may alter risk of mental illness, in part through modification of miR-484, and such modification alters treatment response to specific psychoactive medications, leading to the potential for use of this locus in targeting treatment. © 2017 The Authors.

  16. Review of NRC-funded programs on NDE at Pacific Northwest Laboratory

    International Nuclear Information System (INIS)

    Doctor, S.R.

    1983-04-01

    There are currently four major NDT related programs in progress at PNL which are funded by the US Nuclear Regulatory Commission. These programs are Integration of NDE and Fracture Mechanics Program, Development of a Real-Time SAFT-UT System for the Inservice Inspection of LWRs, Acoustic Emission - Flaw Relationships for Inservice Monitoring of Nuclear Reactor Pressure Boundaries, and Steam Generator Integrity Program/Steam Generator Group Project. This paper will discuss and present an overview of each program and highlight the more significant accomplishments obtained to date. All of these programs have been funded for several years and are scheduled for completion in 1985 or 1986

  17. An overview of the NDE Center - The first decade

    International Nuclear Information System (INIS)

    Dau, G.J.

    1990-01-01

    The EPRI NDE Center was established in 1979 to provide the electrical utility industry with a dedicated NDE capability. The Center's role was defined as providing a bridge to transfer the research and development results generated by EPRI R and D programs (as well as other funding agencies) into qualified equipment and procedures in the shortest possible time. The mission is pursued through three distinct thrusts: technology transfer, training, and resource development. Technology transfer is usually accomplished by a combination of equipment and procedure evaluations and demonstrations. Specific training programs are developed to meet the specific needs of the utility industry. One feature of these programs is the reliance on realistic samples during the training programs. Resource development is oriented toward encouraging more people to pursue NDE as a career. This thrust is implemented by working with interested educational institutions to develop appropriate materials. Work in this project divides naturally into technology and training areas. NDE technology work is focused on improving the inspections applied to heat exchangers, piping, steam turbines, and heavy-section components such as the reactor pressure vessel. Training activities involve the provision of formal courses when a large number of people must become proficient in an improved technology. More details on each of these areas are given in sections that immediately follow

  18. NASA OSMA NDE Program Additive Manufacturing Foundational Effort

    Science.gov (United States)

    Waller, Jess; Walker, James; Burke, Eric; Wells, Douglas; Nichols, Charles

    2016-01-01

    NASA is providing key leadership in an international effort linking NASA and non-NASA resources to speed adoption of additive manufacturing (AM) to meet NASA's mission goals. Participants include industry, NASA's space partners, other government agencies, standards organizations and academia. Nondestructive Evaluation (NDE) is identified as a universal need for all aspects of additive manufacturing.

  19. Rocket center Peenemünde — Personal memories

    Science.gov (United States)

    Dannenberg, Konrad; Stuhlinger, Ernst

    Von Braun built his first rockets as a young teenager. At 14, he started making plans for rockets for human travel to the Moon and Mars. The German Army began a rocket program in 1929. Two years later, Colonel (later General) Becker contacted von Braun who experimented with rockets in Berlin, gave him a contract in 1932, and, jointly with the Air Force, in 1936 built the rocket center Peenemünde where von Braun and his team developed the A-4 (V-2) rocket under Army auspices, while the Air Force developed the V-1 (buzz bomb), wire-guided bombs, and rocket planes. Albert Speer, impressed by the work of the rocketeers, allowed a modest growth of the Peenemünde project; this brought Dannenberg to the von Braun team in 1940. Hitler did not believe in rockets; he ignored the A-4 project until 1942 when he began to support it, expecting that it could turn the fortunes of war for him. He drastically increased the Peenemünde work force and allowed the transfer of soldiers from the front to Peenemünde; that was when Stuhlinger, in 1943, came to Peenemünde as a Pfc.-Ph.D. Later that year, Himmler wrenched the authority over A-4 production out of the Army's hands, put it under his command, and forced production of the immature rocket at Mittelwerk, and its military deployment against targets in France, Belgium, and England. Throughout the development of the A-4 rocket, von Braun was the undisputed leader of the project. Although still immature by the end of the war, the A-4 had proceeded to a status which made it the first successful long-range precision rocket, the prototype for a large number of military rockets built by numerous nations after the war, and for space rockets that launched satellites and traveled to the Moon and the planets.

  20. Technical Letter Report - Preliminary Assessment of NDE Methods on Inspection of HDPE Butt Fusion Piping Joints for Lack of Fusion

    International Nuclear Information System (INIS)

    Crawford, Susan L.; Cumblidge, Stephen E.; Doctor, Steven R.; Hall, Thomas E.; Anderson, Michael T.

    2008-01-01

    The U.S. Nuclear Regulatory Commission (NRC) has a multi-year program at the Pacific Northwest National Laboratory (PNNL) to provide engineering studies and assessments of issues related to the use of nondestructive evaluation (NDE) methods for the reliable inspection of nuclear power plant components. As part of this program, there is a subtask 2D that was set up to address an assessment of issues related to the NDE of high density polyethylene (HDPE) butt fusion joints. This work is being driven by the nuclear industry wanting to employ HDPE materials in nuclear power plant systems. This being a new material for use in nuclear applications, there are a number of issues related to its use and potential problems that may evolve. The industry is pursuing ASME Code Case N-755 entitled 'Use of Polyethylene (PE) Plastic Pipe for Section III, Division 1, Construction and Section XI Repair/Replacement Activities' that contains the requirements for nuclear power plant applications of HDPE. This Code Case requires that inspections be performed after the fusion joint is made by visually examining the bead that is formed and conducting a pressure test of the joint. These tests are only effective in general if gross through-wall flaws exist in the fusion joint. The NRC wants to know whether a volumetric inspection can be conducted on the fusion joint that will reliably detect lack-of-fusion conditions that may be produced during joint fusing. The NRC has requested that the work that PNNL is conducting be provided to assist them in resolving this inspection issue of whether effective volumetric NDE can be conducted to detect lack of fusion (LOF) in the butt HDPE joints. PNNL had 24 HDPE pipe specimens manufactured of 3408 material to contain LOF conditions that could be used to assess the effectiveness of NDE in detecting the LOF. Basic ultrasonic material properties were measured and used to guide the use of phased arrays and time-of-flight diffraction (TOFD) work that was

  1. Study to define NDE research for inspection of stainless steels

    International Nuclear Information System (INIS)

    Reinhart, E.R.

    1978-08-01

    After the boiling water reactor (BWR) stress corrosion cracking incidents on 4- and 10-inch stainless steel piping, the Electric Power Research Institute (EPRI) organized a round-robin ultrasonic examination of piping removed from service (TPS-75-609). Five inspection teams participated in this program, using both a standard procedure and the individual team procedure. The original intent was to section the piping after the program to evaluate the effectiveness of state-of-the-art ultrasonics in finding stress corrosion cracking. The sectioning was delayed, however, to allow research and development (R and D) groups time to perform basic measurements aimed at determining optimum search unit and instrument characteristics for the ultrasonic examination of stainless steel piping and to study the applicability of various advanced inspection methods. This additional effort was funded as part of an EPRI technical planning study (TPS-75-620), A Study to Define NDE Research for Inspection of Stainless Steels. Inspection methods evaluated in this study included (1) processing of manual scan data using a miniature programmable calculator (Aerojet Nuclear); (2) investigation into the performance characteristics of three experimental ultrasonic transducers (Battelle-Columbus Laboratories); (3) analysis of fundamental ultrasonic response data from intergranular stress corrosion cracks in stainless steels (Southwest Research Institute); and (4) a feasibility study of advanced signal processing and pattern recognition for analyzing flaws in stainless steel piping (Ultrasonics International). The results of the studies compiled in the report have indicated the direction for future research and development and have formed the basis for the recently initiated EPRI Research Project 892, Ultrasonic System Optimization

  2. NDE reliability and SAFT-UT final development

    International Nuclear Information System (INIS)

    Doctor, S.R.; Deffenbaugh, J.D.; Good, M.S.; Green, E.R.; Heasler, P.G.; Reid, L.D.; Simonen, F.A.; Spanner, J.C.; Taylor, T.T.; Vo, T.V.

    1990-01-01

    The Evaluation and Improvement of NDE Reliability for Inservice Inspection of Light Water Reactors (NDE Reliability) program at the Pacific Northwest Laboratory (PNL) was established by the US Nuclear Regulatory Commission (NRC) to determine the reliability of current inservice inspection (ISI) techniques and to develop recommendations that will ensure a suitably high inspection reliability. This is a progress report covering the programmatic work from October 1987 through September 1988. The program for Validation and Technology Transfer for SAFT-UT is designed to accomplish the final step of moving research results into beneficial application. Accomplishments for FY88 in Synthetic Aperture Focusing of Ultrasonic Test data (SAFT-UT) under this program are discussed in this paper. The information is treated under the copies of Code Activities, Field Validation, and Seminars. (orig.)

  3. Benchmarking of Computational Models for NDE and SHM of Composites

    Science.gov (United States)

    Wheeler, Kevin; Leckey, Cara; Hafiychuk, Vasyl; Juarez, Peter; Timucin, Dogan; Schuet, Stefan; Hafiychuk, Halyna

    2016-01-01

    Ultrasonic wave phenomena constitute the leading physical mechanism for nondestructive evaluation (NDE) and structural health monitoring (SHM) of solid composite materials such as carbon-fiber-reinforced polymer (CFRP) laminates. Computational models of ultrasonic guided-wave excitation, propagation, scattering, and detection in quasi-isotropic laminates can be extremely valuable in designing practically realizable NDE and SHM hardware and software with desired accuracy, reliability, efficiency, and coverage. This paper presents comparisons of guided-wave simulations for CFRP composites implemented using three different simulation codes: two commercial finite-element analysis packages, COMSOL and ABAQUS, and a custom code implementing the Elastodynamic Finite Integration Technique (EFIT). Comparisons are also made to experimental laser Doppler vibrometry data and theoretical dispersion curves.

  4. The role of small business in innovative NDE

    International Nuclear Information System (INIS)

    Berger, H.

    1983-01-01

    Small business is a strong element in the economy in terms of employment, new jobs and the introduction of new products and services. In NDE, small companies have introduced new ideas, products and techniques, making these available for improved inspection. Given more opportunity, small business can be an even stronger factor in NDE technology transfer. This opportunity might be provided in the form of: Greater assistance and encouragement from large organizations who do not plan to move forward on developments within their own laboratories; Greater recognition for people who display the innovative, entrepreneurial spirit needed to start new ventures; and More opportunities in R and D - either in direct contract support or in a subcontractor role in which the small business innovative spirit is encouraged

  5. Application of the actor model to large scale NDE data analysis

    Science.gov (United States)

    Coughlin, Chris

    2018-03-01

    The Actor model of concurrent computation discretizes a problem into a series of independent units or actors that interact only through the exchange of messages. Without direct coupling between individual components, an Actor-based system is inherently concurrent and fault-tolerant. These traits lend themselves to so-called "Big Data" applications in which the volume of data to analyze requires a distributed multi-system design. For a practical demonstration of the Actor computational model, a system was developed to assist with the automated analysis of Nondestructive Evaluation (NDE) datasets using the open source Myriad Data Reduction Framework. A machine learning model trained to detect damage in two-dimensional slices of C-Scan data was deployed in a streaming data processing pipeline. To demonstrate the flexibility of the Actor model, the pipeline was deployed on a local system and re-deployed as a distributed system without recompiling, reconfiguring, or restarting the running application.

  6. Proceedings: 20th Steam Generator NDE Workshop: Orlando, Florida, July 9-11, 2001

    International Nuclear Information System (INIS)

    2003-01-01

    The 2001 workshop took place in Orlando, Florida, from July 9 to 11, 2001. It covered one full day and two half-days of presentations. Attendees included representatives from domestic and overseas nuclear utilities, NSSS vendors, NDE service and equipment organizations, research laboratories, and regulatory bodies. This annual workshop serves as a forum for NDE specialists to gather and discuss current steam generator NDE issues and means for their resolution

  7. Transportation of hydrogen in pipelines: interaction of NDE and material requirements

    International Nuclear Information System (INIS)

    Thompson, R.B.; Thompson, A.W.; Thompson, D.O.

    1976-01-01

    The role of nondestructive evaluation (NDE) of materials used in H pipelines and storage facilities is examined. NDE techniques are available which detect critical flaws in today's natural gas lines, and which should have some success in hydrogen lines made of resistant materials. However, the critical flaws in a hydrogen line which is built of a steel whose toughness is significantly reduced in hydrogen, or which contains low-toughness defects such as weld hard spots, would be extremely difficult to detect with today's instrumentation. That instrumentation is designed to test efficiently long lengths of line with minimum disruption of service. Technology is available that would be capable of the more detailed inspection required for the smaller defects. However, the equipment might be expensive and time-consuming to operate, and these costs must be included in the overall assessment of a system using existing lines without embrittlement protection. In addition, it is evident that strong motivation exists to construct new facilities from steels with improved resistance to hydrogen

  8. Steam generator inspection activities at the EPRI NDE Center

    International Nuclear Information System (INIS)

    Krzywosz, K.

    1988-01-01

    Various types of corrosion and mechanical damage continue to affect the availability of both recirculating and once-through steam generators. Both the tube bundle and its supporting structure are affected. Intergranular attack and stress corrosion cracking (SCC) are the corrosion-assisted tube-wall damage mechanisms of most concern at this time. Fatigue cracking and fretting at antivibration bars are currently the mechanical damage forms causing most concern. Improved NDE equipment and techniques are providing better detection and characterization of adverse conditions within the steam generators and doing it at an earlier stage. This allows timely corrective action. To maintain the projected life expectancy of existing and new steam generators, remedial measures have been implemented. These measures include shot- or roto-peening, U-bend stress relief, chemical cleaning of secondary side, and sleeving of tubes. The improved NDE technology will also be instrumental in monitoring and assessing the effectiveness of the remedial measures. The revision of guidance documents for steam generator in-service inspection (ISI) is providing more relevant information to support this complex operation. A multitasked project is described that includes evaluation of steam generator tube NDE technology, transfer of this technology to utilities, and rapid response utility assistance

  9. Volume imaging NDE and serial sectioning of carbon fiber composites

    Science.gov (United States)

    Hakim, Issa; Schumacher, David; Sundar, Veeraraghavan; Donaldson, Steven; Creuz, Aline; Schneider, Rainer; Keller, Juergen; Browning, Charles; May, Daniel; Ras, Mohamad Abo; Meyendorf, Norbert

    2018-04-01

    A composite material is a combination of two or more materials with very different mechanical, thermal and electrical properties. The various forms of composite materials, due to their high material properties, are widely used as structural materials in the aviation, space, marine, automobile, and sports industries. However, some defects like voids, delamination, or inhomogeneous fiber distribution that form during the fabricating processes of composites can seriously affect the mechanical properties of the composite material. In this study, several imaging NDE techniques such as: thermography, high frequency eddy current, ultrasonic, x-ray radiography, x-ray laminography, and high resolution x-ray CT were conducted to characterize the microstructure of carbon fiber composites. Then, a 3D analysis was implemented by the destructive technique of serial sectioning for the same sample tested by the NDE methods. To better analyze the results of this work and extract a clear volume image for all features and defects contained in the composite material, an intensive comparison was conducted among hundreds of 3D-NDE and multi serial sections' scan images showing the microstructure variation.

  10. The role of NDE in maintaining and extending the life cycle of engineering components

    International Nuclear Information System (INIS)

    Doctor, S.R.

    1997-01-01

    A successful life cycle of engineering components begins during the design to select the best materials for a given application, designing for economical maintenance, and accommodating NDE inspections. NDE in the nuclear industry is part of the defense in depth to insure structural integrity of components. High reliability NDE is needed to reliably detect and accurately characterize the failure modes that have occurred in nuclear components. The move toward risk-informed inservice inspection programs focusses the NDE on the most safety significant components. The use of performance demonstration testing is leading to improved inservice inspections through screening out ineffective procedure/equipment/personnel. (orig.)

  11. An Assessment of NDE Capability and Materials Characterization for Complex Additive Manufacturing Aerospace Components

    Data.gov (United States)

    National Aeronautics and Space Administration — This multi-center activity investigates the correlation between nondestructive evaluation (NDE), mechanical testing, microstructure, and additive manufacturing (AM)...

  12. Toward automated interpretation of integrated information: Managing "big data" for NDE

    Science.gov (United States)

    Gregory, Elizabeth; Lesthaeghe, Tyler; Holland, Stephen

    2015-03-01

    Large scale automation of NDE processes is rapidly maturing, thanks to recent improvements in robotics and the rapid growth of computer power over the last twenty years. It is fairly straightforward to automate NDE data collection itself, but the process of NDE remains largely manual. We will discuss three threads of technological needs that must be addressed before we are able to perform automated NDE. Spatial context, the first thread, means that each NDE measurement taken is accompanied by metadata that locates the measurement with respect to the 3D physical geometry of the specimen. In this way, the geometry of the specimen acts as a database key. Data context, the second thread, means that we record why the data was taken and how it was measured in addition to the NDE data itself. We will present our software tool that helps users interact with data in context, Databrowse. Condition estimation, the third thread, is maintaining the best possible knowledge of the condition (serviceability, degradation, etc.) of an object or part. In the NDE context, we can prospectively use Bayes' Theorem to integrate the data from each new NDE measurement with prior knowledge. These tools, combined with robotic measurements and automated defect analysis, will provide the information needed to make high-level life predictions and focus NDE measurements where they are needed most.

  13. NDE performance demonstration in the US nuclear power industry - applications, costs, lessons learned, and connection to NDE reliability

    International Nuclear Information System (INIS)

    Ammirato, F.

    1997-01-01

    Periodic inservice inspection (ISI) of nuclear power plant components is performed in the United States to satisfy legal commitments and to provide plant owners with reliable information for managing degradation. Performance demonstration provides credible evidence that ISI will fulfill its objectives. This paper examines the technical requirements for inspection and discusses how these technical needs are used to develop effective performance demonstration applications. NDE reliability is discussed with particular reference to its role in structural integrity assessments and its connection with performance demonstration. It is shown that the role of NDE reliability can range from very small to critical depending on the particular application and must be considered carefully in design of inspection techniques and performance demonstration programs used to qualify the inspection. Finally, the costs, benefits, and problems associated with performance demonstration are reviewed along with lessons learned from more than 15 years of performance demonstration experience in the US. (orig.)

  14. Advanced methods in NDE using machine learning approaches

    Science.gov (United States)

    Wunderlich, Christian; Tschöpe, Constanze; Duckhorn, Frank

    2018-04-01

    Machine learning (ML) methods and algorithms have been applied recently with great success in quality control and predictive maintenance. Its goal to build new and/or leverage existing algorithms to learn from training data and give accurate predictions, or to find patterns, particularly with new and unseen similar data, fits perfectly to Non-Destructive Evaluation. The advantages of ML in NDE are obvious in such tasks as pattern recognition in acoustic signals or automated processing of images from X-ray, Ultrasonics or optical methods. Fraunhofer IKTS is using machine learning algorithms in acoustic signal analysis. The approach had been applied to such a variety of tasks in quality assessment. The principal approach is based on acoustic signal processing with a primary and secondary analysis step followed by a cognitive system to create model data. Already in the second analysis steps unsupervised learning algorithms as principal component analysis are used to simplify data structures. In the cognitive part of the software further unsupervised and supervised learning algorithms will be trained. Later the sensor signals from unknown samples can be recognized and classified automatically by the algorithms trained before. Recently the IKTS team was able to transfer the software for signal processing and pattern recognition to a small printed circuit board (PCB). Still, algorithms will be trained on an ordinary PC; however, trained algorithms run on the Digital Signal Processor and the FPGA chip. The identical approach will be used for pattern recognition in image analysis of OCT pictures. Some key requirements have to be fulfilled, however. A sufficiently large set of training data, a high signal-to-noise ratio, and an optimized and exact fixation of components are required. The automated testing can be done subsequently by the machine. By integrating the test data of many components along the value chain further optimization including lifetime and durability

  15. 40-in. OMS Kevlar(Registered Trademark) COPV S/N 007 Stress Rupture Test NDE

    Science.gov (United States)

    Saulsberry, Regor; Greene, Nate; Forth, Scott; Leifeste, Mark; Gallus, Tim; Yoder, Tommy; Keddy, Chris; Mandaras, Eric; Wincheski, Buzz; Williams, Philip; hide

    2010-01-01

    The presentation examines pretest nondestructive evaluation (NDE), including external/internal visual inspection, raman spectroscopy, laser shearography, and laser profilometry; real-time NDE including eddy current, acoustic emission (AE), and real-time portable raman spectroscopy; and AE application to carbon/epoxy composite overwrapped pressure vessels.

  16. Iowa State University's undergraduate minor, online graduate certificate and resource center in NDE

    Science.gov (United States)

    Bowler, Nicola; Larson, Brian F.; Gray, Joseph N.

    2014-02-01

    Nondestructive evaluation is a `niche' subject that is not yet offered as an undergraduate or graduate major in the United States. The undergraduate minor in NDE offered within the College of Engineering at Iowa State University (ISU) provides a unique opportunity for undergraduate aspiring engineers to obtain a qualification in the multi-disciplinary subject of NDE. The minor requires 16 credits of course work within which a core course and laboratory in NDE are compulsory. The industrial sponsors of Iowa State's Center for Nondestructive Evaluation, and others, strongly support the NDE minor and actively recruit students from this pool. Since 2007 the program has graduated 10 students per year and enrollment is rising. In 2011, ISU's College of Engineering established an online graduate certificate in NDE, accessible not only to campus-based students but also to practicing engineers via the web. The certificate teaches the fundamentals of three major NDE techniques; eddy-current, ultrasonic and X-ray methods. This paper describes the structure of these programs and plans for development of an online, coursework-only, Master of Engineering in NDE and thesis-based Master of Science degrees in NDE.

  17. Proceedings of the NEA workshop on development priorities for NDE of concrete structures in nuclear plants

    International Nuclear Information System (INIS)

    1998-01-01

    The first session's objectives of this conference were to identify the perspectives of national regulators and plant operators on what is required of NDE. The second session objectives were to provide opportunity for NDE practitioners to share experience and views on the status of development of key NDE techniques: tomographic imaging for investigation of concrete structures, four examples of modern NDE techniques applied to the investigation of nuclear and non-nuclear concrete structures and a vision of future improvements, investigating concrete structures by 3D Radar imaging and imaging using mechanical impact, synopsis NDT of concrete using ultrasonics and radar. The third session objectives were to prioritise development of NDE techniques for safety related concrete structures in nuclear installations: key conclusions from earlier sessions, proposed priorities and next steps

  18. Graphics processing unit based computation for NDE applications

    Science.gov (United States)

    Nahas, C. A.; Rajagopal, Prabhu; Balasubramaniam, Krishnan; Krishnamurthy, C. V.

    2012-05-01

    Advances in parallel processing in recent years are helping to improve the cost of numerical simulation. Breakthroughs in Graphical Processing Unit (GPU) based computation now offer the prospect of further drastic improvements. The introduction of 'compute unified device architecture' (CUDA) by NVIDIA (the global technology company based in Santa Clara, California, USA) has made programming GPUs for general purpose computing accessible to the average programmer. Here we use CUDA to develop parallel finite difference schemes as applicable to two problems of interest to NDE community, namely heat diffusion and elastic wave propagation. The implementations are for two-dimensions. Performance improvement of the GPU implementation against serial CPU implementation is then discussed.

  19. Cold spray NDE for porosity and other process anomalies

    Science.gov (United States)

    Glass, S. W.; Larche, M. R.; Prowant, M. S.; Suter, J. D.; Lareau, J. P.; Jiang, X.; Ross, K. A.

    2018-04-01

    This paper describes a technology review of nondestructive evaluation (NDE) methods that can be applied to cold spray coatings. Cold spray is a process for depositing metal powder at high velocity so that it bonds to the substrate metal without significant heating that would be likely to cause additional residual tensile stresses. Coatings in the range from millimeters to centimeters are possible at relatively high deposition rates. Cold spray coatings that may be used for hydroelectric components that are subject to erosion, corrosion, wear, and cavitation damage are of interest. The topic of cold spray NDE is treated generally, however, but may be considered applicable to virtually any cold spray application except where there are constraints of the hydroelectric component application that bear special consideration. Optical profilometry, eddy current, ultrasound, and hardness tests are shown for one set of good, fair, and poor nickel-chrome (NiCr) on 304 stainless steel (304SS) cold spray samples to demonstrate inspection possibilities. The primary indicator of cold spray quality is the cold spray porosity that is most directly measured with witness-sample destructive examinations (DE)—mostly photo-micrographs. These DE-generated porosity values are correlated with optical profilometry, eddy current, ultrasound, and hardness test NDE methods to infer the porosity and other information of interest. These parameters of interest primarily include: • Porosity primarily caused by improper process conditions (temperature, gas velocity, spray standoff, spray angle, powder size, condition, surface cleanliness, surface oxide, etc.) • Presence/absence of the cold spray coating including possible over-sprayed voids • Coating thicknessOptical profilometry measurements of surface roughness trended with porosity plus, if compared with a reference measurement or reference drawing, would provide information on the coating thickness. Ultrasound could provide similar

  20. Assessment of NDE for key indicators of aging cables in nuclear power plants - Interim status

    Science.gov (United States)

    Glass, S. W.; Ramuhalli, P.; Fifield, L. S.; Prowant, M. S.; Dib, G.; Tedeschi, J. R.; Suter, J. D.; Jones, A. M.; Good, M. S.; Pardini, A. F.; Hartman, T. S.

    2016-02-01

    Degradation of the cable jacket, electrical insulation, and other cable components of installed cables within nuclear power plants (NPPs) is known to occur as a function of age, temperature, radiation, and other environmental factors. System tests verify cable function under normal loads; however, the concern is over cable performance under exceptional loads associated with design-basis events (DBEs). The cable's ability to perform safely over the initial 40-year planned and licensed life has generally been demonstrated and there have been very few age-related cable failures. With greater than 1000 km of power, control, instrumentation, and other cables typically found in an NPP, replacing all the cables would be a severe cost burden. Justification for life extension to 60 and 80 years requires a cable aging management program to justify cable performance under normal operation as well as accident conditions. Currently the gold standard for determining cable insulation degradation is the elongation-at-break (EAB). This, however, is an ex-situ measurement and requires removal of a sample for laboratory investigation. A reliable nondestructive examination (NDE) in-situ approach is desirable to objectively determine the suitability of the cable for service. A variety of tests are available to assess various aspects of electrical and mechanical cable performance, but none of these tests are suitable for all cable configurations nor does any single test confirm all features of interest. Nevertheless, the complete collection of test possibilities offers a powerful range of tools to assure the integrity of critical cables. Licensees and regulators have settled on a practical program to justify continued operation based on condition monitoring of a lead sample set of cables where test data is tracked in a database and the required test data are continually adjusted based on plant and fleet-wide experience. As part of the Light Water Reactor Sustainability program sponsored

  1. A robust approach to optimal matched filter design in ultrasonic non-destructive evaluation (NDE)

    Science.gov (United States)

    Li, Minghui; Hayward, Gordon

    2017-02-01

    The matched filter was demonstrated to be a powerful yet efficient technique to enhance defect detection and imaging in ultrasonic non-destructive evaluation (NDE) of coarse grain materials, provided that the filter was properly designed and optimized. In the literature, in order to accurately approximate the defect echoes, the design utilized the real excitation signals, which made it time consuming and less straightforward to implement in practice. In this paper, we present a more robust and flexible approach to optimal matched filter design using the simulated excitation signals, and the control parameters are chosen and optimized based on the real scenario of array transducer, transmitter-receiver system response, and the test sample, as a result, the filter response is optimized and depends on the material characteristics. Experiments on industrial samples are conducted and the results confirm the great benefits of the method.

  2. Integration of NDE Reliability and Fracture Mechanics

    Energy Technology Data Exchange (ETDEWEB)

    Becker, F. L.; Doctor, S. R.; Heas!er, P. G.; Morris, C. J.; Pitman, S. G.; Selby, G. P.; Simonen, F. A.

    1981-03-01

    The Pacific Northwest Laboratory is conducting a four-phase program for measuring and evaluating the effectiveness and reliability of in-service inspection (lSI} performed on the primary system piping welds of commercial light water reactors (LWRs). Phase I of the program is complete. A survey was made of the state of practice for ultrasonic rsr of LWR primary system piping welds. Fracture mechanics calculations were made to establish required nondestrutive testing sensitivities. In general, it was found that fatigue flaws less than 25% of wall thickness would not grow to failure within an inspection interval of 10 years. However, in some cases failure could occur considerably faster. Statistical methods for predicting and measuring the effectiveness and reliability of lSI were developed and will be applied in the "Round Robin Inspections" of Phase II. Methods were also developed for the production of flaws typical of those found in service. Samples fabricated by these methods wilI be used in Phase II to test inspection effectiveness and reliability. Measurements were made of the influence of flaw characteristics {i.e., roughness, tightness, and orientation) on inspection reliability. These measurernents, as well as the predictions of a statistical model for inspection reliability, indicate that current reporting and recording sensitivities are inadequate.

  3. NDE of Damage in Aircraft Flight Control Surfaces

    International Nuclear Information System (INIS)

    Hsu, David K.; Barnard, Daniel J.; Dayal, Vinay

    2007-01-01

    Flight control surfaces on an aircraft, such as ailerons, flaps, spoilers and rudders, are typically adhesively bonded composite or aluminum honeycomb sandwich structures. These components can suffer from damage caused by hail stone, runway debris, or dropped tools during maintenance. On composites, low velocity impact damages can escape visual inspection, whereas on aluminum honeycomb sandwich, budding failure of the honeycomb core may or may not be accompanied by a disbond. This paper reports a study of the damage morphology in such structures and the NDE methods for detecting and characterizing them. Impact damages or overload failures in composite sandwiches with Nomex or fiberglass core tend to be a fracture or crinkle or the honeycomb cell wall located a distance below the facesheet-to-core bondline. The damage in aluminum honeycomb is usually a buckling failure, propagating from the top skin downward. The NDE methods used in this work for mapping out these damages were: air-coupled ultrasonic scan, and imaging by computer aided tap tester. Representative results obtained from the field will be shown

  4. Annual Report - Remotely Operated NDE System for Inspection of Hanford's Waste Tank Knuckle Regions and Development of a Small Roving Annulus Inspection Vehicle T-SAFT Scanning Bridge for Savannah River Site Applications

    International Nuclear Information System (INIS)

    Pardini, Allan F.; Crawford, Susan L.; Harris, Robert V.; Samuel, Todd J.; Roberts, Ron A.; Alzheimer, James M.; Gervais, Kevin L.; Maynard, Melody A.; Tucker, Joseph C.

    2002-01-01

    The design, development, and performance testing of a prototype system known as the Remotely Operated Nondestructive Examination (RONDE)system to examine the knuckle region of a Hanford DST have been completed. The design and fabrication of a scanning bridge to support the Savannah River Site utilizing similar technology was also completed

  5. ARMA processing for NDE ultrasonic imaging

    International Nuclear Information System (INIS)

    Pao, Y.H.; El-Sherbini, A.

    1984-01-01

    This chapter describes a new method for acoustic image reconstruction for an active multiple sensor system operating in the reflection mode in the Fresnel region. The method is based on the use of an ARMA model for the reconstruction process. Algorithms for estimating the model parameters are presented and computer simulation results are shown. The AR coefficients are obtained independently of the MA coefficients. It is shown that when the ARMA reconstruction method is augmented with the multifrequency approach, it can provide a three-dimensional reconstructed image with high lateral and range resolutions, high signal to noise ratio and reduced sidelobe levels. The proposed ARMA reconstruction method results in high quality images and better performance than that obtainable with conventional methods. The advantages of the method are very high lateral resolution with a limited number of sensors, reduced sidelobes level, and high signal to noise ratio

  6. Applications of CIVA NDE 10 on Eddy Current Modeling

    International Nuclear Information System (INIS)

    Nurul Ain Ahmad Latif; Ilham Mukhriz Zainal Abidin; AABdul Razak Hamzah

    2011-01-01

    CIVA NDE 10 is the simulation software and used as the platform to develop the models dedicated to Eddy Current testing (ET). It has various application in semi analytical modeling approaches. The focus of this paper is to simulate the signals response on the 40 % external groove of the Inconel 600 heat exchanger tubes with outside diameter of 22.22 mm. The inspection were simulated using 17 mm outside diameter differential probe with 100 kHz and 500 kHZ testing frequency. All the simulation results were validated using the experimental results integrated in the CIVA software. The configurations of the probe and tube consisting the flaw show the good agreement between the experimental and the simulated data. (author)

  7. Bitlis Etnografya Müzesi'nde Bulunan Geleneksel Giysiler

    OpenAIRE

    Sökmen, Sultan

    2016-01-01

    Bu çalışmada, Bitlis Etnografya Müzesi'nde sergilenmekte olan geleneksel giysilerin kumaş, renk, süsleme ve teknik özelliklerinin tanıtımı amaçlanmıştır. Bu amaç doğrultusunda ilgili makamlardan yazılı izin alınarak müze vitrinlerinde sergilenmekte olan ve depolarda koruma altına alınan giysilerin fotoğrafları çekilmiş, gerekli ölçümleri yapılarak teknik özellikleri belirlenmiş, hammadde ve süsleme özellikleri incelenmiştir. Müzede bulunan geleneksel giysi örnekleri yeterince zengin olma...

  8. Comparison of normal and phase stepping shearographic NDE

    Science.gov (United States)

    Andhee, A.; Gryzagoridis, J.; Findeis, D.

    2005-05-01

    The paper presents results of non-destructive testing of composite main rotor helicopter blade calibration specimens using the laser based optical NDE technique known as Shearography. The tests were performed initially using the already well established near real-time non-destructive technique of Shearography, with the specimens perturbed during testing for a few seconds using the hot air from a domestic hair dryer. Subsequent to modification of the shearing device utilized in the shearographic setup, phase stepping of one of the sheared images to be captured by the CCD camera was enabled and identical tests were performed on the composite main rotor helicopter blade specimens. Considerable enhancement of the images manifesting or depicting the defects on the specimens is noted suggesting that phase stepping is a desirable enhancement technique to the traditional Shearographic setup.

  9. Considerations for ultrasonic testing application for on-orbit NDE

    Science.gov (United States)

    Koshti, Ajay M.

    2015-04-01

    The paper addresses some on-orbit nondestructive evaluation (NDE) needs of NASA for International Space Station (ISS). The presentation gives NDE requirements for inspecting suspect damage due to micro-meteoroids and orbital debris (MMOD) impact on the pressure wall of the ISS. This inspection is meant to be conducted from inside of the ISS module. The metallic wall of the module has a fixed wall thickness but also has integral orthogrid ribs for reinforcement. Typically, a single MMOD hit causes localized damage in a small area causing loss of material similar to pitting corrosion, but cracks may be present too. The impact may cause bulging of the wall. Results of the ultrasonic and eddy current demonstration scans on test samples are provided. The ultrasonic technique uses shear wave scans to interrogate the localized damage area from the surrounding undamaged area. The scanning protocol results in multiple scans, each with multiple "vee" paths. A superimposition and mosaic of the three-dimensional ultrasonic data from individual scans is desired to create C-scan images of the damage. This is a new data reduction process which is not currently implemented in state-of-art ultrasonic instruments. Results of ultrasonic scans on the simulated MMOD damage test plates are provided. The individual C-scans are superimposed manually creating mosaic of the inspection. The resulting image is compared with visibly detected damage boundaries, X-ray images, and localized ultrasonic and eddy current scans for locating crack tips to assess effectiveness of the ultrasonic scanning. The paper also discusses developments needed in improving ergonomics of the ultrasonic testing for on-orbit applications.

  10. İlaç Sektöründe Pazar Paylarının Analizi: Yeni Lanchester Stratejisi ve Sistem Dinamikleri(Analysis of Market Shares in Pharmaceutical Industry: New Lanchester Strategy and System Dynamics

    Directory of Open Access Journals (Sweden)

    Aşkın ÖZDAĞOĞLU

    2013-12-01

    Full Text Available Today, many companies have developed different competition strategies with the purpose of reaching their institutional targets. Developing of the competition strategies and reaction to the instantaneous changes according to the market conditions are possible with the detailed and dynamic analysis of the competitors. In this study, how to change the market shares of the pharmaceutical product companies that compete in a certain region, depending upon the sales force have been analyzed. Lanchester’s Laws have been used for the calculations made in order to determine the market shares. All calculations have been integrated in the frame of system dynamic model in the long run analysis of the market shares and forecasting the long term results of the different sales forces. Different scenarios and long term effects have been analyzed for changes of sales forces via this model. The study ended up with obtaining the potential market share changes of the pharmaceutical product in the case study for the long run which would support the marketing activities.

  11. NOAA JPSS Visible Infrared Imaging Radiometer Suite (VIIRS) Smoothed Normalized Difference Vegetation Index (NDVI) from NDE

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Visible Infrared Imaging Radiometer Suite (VIIRS) Smoothed Normalized Difference Vegetation Index (NDVI) from NDE is a weekly product derived from the VIIRS...

  12. Field experience with advanced inservice inspection NDE-techniques for detection and sizing

    International Nuclear Information System (INIS)

    Engl, G.; Kronig, M.

    1988-01-01

    This document deals with Non-Destructive Examination (NDE) techniques used for the detection and sizing of cracks. Several techniques, such as L-SAFT, ALOK and Phased Array with UT-Tomography are discussed and compared. (TEC)

  13. NOAA JPSS Visible Infrared Imaging Radiometer Suite (VIIRS) Vegetation Health and Drought Products (VHDP) from NDE

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The VIIRS Vegetation Health and Drought Products (VHDP) from NDE algorithm provides weekly estimates of the Vegetation Condition Index (VCI), Temperature Condition...

  14. Entering the Era of "Super" NDE Instruments, Followed by Progressive Miniaturization, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — An ideal NDE data acquisition and analysis tool would be a versatile and precise device capable of providing support for a large number of inspections using numerous...

  15. Printed Ultra-High Temperature NDE Sensors for Complex Structures, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — This Phase I SBIR proposal will address the use of innovative additive manufacturing technologies applicable to Non-Destructive Evaluation (NDE) and Structural...

  16. Field experience with advanced inservice inspection NDE-techniques for detection and sizing

    Energy Technology Data Exchange (ETDEWEB)

    Engl, G; Kronig, M

    1988-12-31

    This document deals with Non-Destructive Examination (NDE) techniques used for the detection and sizing of cracks. Several techniques, such as L-SAFT, ALOK and Phased Array with UT-Tomography are discussed and compared. (TEC).

  17. The use of fracture mechanics for the evaluation of NDE flaw acceptance standards

    Energy Technology Data Exchange (ETDEWEB)

    Alicino, A; Capurro, E; Ansaldo, Sp; Corvi, A [Ansaldo SpA, Genoa (Italy)

    1988-12-31

    This document deals with the use of fracture mechanics criteria to evaluate the Non Destructive Examination (NDE) flaw acceptance standards. The communication discusses the general schemes and the guidelines of the activity carried out. (TEC).

  18. Composite Stress Rupture NDE Research and Development Project (Kevlar[R] and Carbon)

    Science.gov (United States)

    Saulsberry, Regor

    2010-01-01

    The objective was to develop and demonstrate nondestructive evaluation (NDE) techniques capable of assessing stress rupture related strength degradation for carbon composite pressure vessels, either in a structural health monitoring (SHM) or periodic inspection mode.

  19. Novel Ultra-Miniature Flexible Videoscope for On-Orbit NDE, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — Conventional videoscopes for NDE suffer many shortcomings, including large diameter, limited flexibility, inadequate image quality, high cost and lack of 3D imaging...

  20. Evaluación del sistema de salud mental en México: ¿hacia dónde encaminar la atención? Evaluation of the mental health system in Mexico: where is it headed?

    Directory of Open Access Journals (Sweden)

    Shoshana Berenzon Gorn

    2013-04-01

    úmero de especialistas, capacitar periódicamente al personal en los primeros niveles de atención e incrementar la participación del resto de la sociedad.OBJECTIVE: Evaluate some of the key indicators that characterize the Mexican mental health system using the World Health Organization's Assessment Instrument for Mental Health Systems (WHO-AIMS. METHODS: The strategy for examining the WHO-AIMS indicators included: (i a review of documentary sources; (ii application of the questionnaire; and (iii group work with a team of experts using the consensus technique. To facilitate collection of the data, a questionnaire was prepared in which the indicators were turned into simple questions. The people gathering the data were trained, and the activity was monitored. RESULTS: It was found that, of the total budget for health, only 2% is allocated for mental health, and, of that share, 80% is used in the operation of psychiatric hospitals. The pivotal point for mental health care is in the psychiatric hospital; there are very few psychiatric units in the general hospitals, few residential establishments, and few services targeted specifically to care for children and adolescents. Access is limited because of the centralized health care system, with the majority of establishments located in the large cities. Only 30% of primary care services have protocols for the evaluation and treatment of mental disorders. Finally, in the mental health facilities, the ratios of psychiatrists, other physicians, nurses, and psychologists per 100 000 population are 1.6, 1.3, 3.4, and 1.5, respectively. CONCLUSIONS: More funding will be needed in order to bridge the gap between the mental health burden and the budget allocated for its care, and resources will need to be used more rationally, with the first level of care becoming the pivot. In addition, it will be necessary to increase the number of specialists, offer periodic in-service training for personnel at the first level of care, and enlist

  1. Advanced NDE (ANDE) and its application for pressure tube inspections in OPG reactors

    Energy Technology Data Exchange (ETDEWEB)

    Jarron, D.; Trelinski, M.; Kretz, S. [Ontario Power Generation, Ajax, Ontario (Canada)]. E-mail: don.jarron@opg.com; mike.trelinski@opg.com; steve.kretz@opg.com

    2006-07-01

    Periodic and in-service inspections of CANDU fuel channels are essential for the proper assessment of the structural integrity of these vital components. The arrival of new delivery devices for fuel channel inspections (Universal Delivery Machine) has driven new methods for gathering and analyzing NDE data. The Advanced Non-Destructive Examination (ANDE) system has been designed and field implemented as a high speed data acquisition system to meet the requirements of the CSA N285.4 code. It was built from the solid foundation of CIGAR experience and uses cutting edge hardware and software to attain high speed data collection enabling relatively quick inspection of a large number of fuel channels. The capabilities of the ANDE inspection system include: Surface and volumetric inspection of pressure tube by ultrasonics; Flaw characterization by ultrasonics; Pressure tube diameter measurements; Pressure tube thickness measurements; Garter Spring location by Eddy Current; Garter Spring location by ultrasonics; Pressure tube sag measurement. In addition to the above, selected flaws/areas of a pressure tube can be replicated using a two plate ANDE replica tool. At the heart of the inspection system is a set of twelve ultrasonic probes positioned in such a way that the inspected areas are examined from various angles and directions and by various ultrasonic wave modes (shear and longitudinal). High frequency ultrasound used for the examinations allows for reliable detection of small flaws. Separate sensors have been installed on the inspection head for Garter Spring location and sag measurements. (author)

  2. KRISENZUSTÄNDE UND ANWENDUNG VON ZWANGSMASSNAHMEN IN DER PSYCHIATRIE

    Directory of Open Access Journals (Sweden)

    Vesna Šendula Jengić

    2017-01-01

    Full Text Available In der Arbeit wird über die Phänomene der Aggressivität und Gewalt bei Menschen diskutiert, wobei man besonderen Wert auf die Personen mit seelischen Störungen legt. Krisenzustände und Gewaltverhalten gibt es nicht nur in der Psychiatrie. Es kann immer zu einem solchem Zustand und Verhalten kommen und jeder kann unter bestimmten Umständen sowohl Opfer als auch Täter sein. Multikausalität und Komplexität sowie auch individuelle Umstände und situationsbezogene Faktoren, welche zum Gewaltverhalten führen können, haben nur geringen Prognosekraft. Statistische Indikatoren andererseits können falsch positive und falsch negative Ergebnisse verbergen, wobei ein Fehler in der Einschätzung das Risiko zum Erscheinen eines Verhaltens drastisch erhöhen oder zum unrechtfertigten Entziehung der Freiheit führen kann. Zwangsmaβnahmen in der Psychiatrie sind nur ausnahmsweise anzuwenden, und zwar, wenn ein gefährliches Verhalten direkt das Leben und die Gesundheit einer Person oder einer Umgebung gefährdet. Darüber hinaus ist die Dauer von Zwangsmaβnahmen auch beschränkt. Die Gesetzesregulative, insbesondere das Gesetz über den Schutz von Personen mit seelischen Störungen (Amtsblatt der Republik Kroatien Nr. 76/2014 und die Ordnung über die Arten und die Weise der Anwendung von Zwangsmaβnahmen gegenüber den Personen mit schwierigen seelischen Störungen (Amtsblatt der Republik Kroatien Nr. 16/2015, dient als zusätzlicher Schutz der Rechte dieser Patientengruppe und schreibt die Arten und die Weise der Anwendung von Zwangsmaβnahmen sowie auch die Vorgehensweise. Zusätzliche Richtlinien und Vorgehensstrategien wurden auch von den Gesellschaften für Psychiatrie gegeben. In der Arbeit wird betont, dass bessere Bedingungen, Infrastruktur und Arbeitskräfte sowie auch ständige Entwicklung und Bewertung der Arbeitsqualität in der Psychiatrie erforderlich sind. Abschlieβend werden Standards und ethische Fragen in Betracht gezogen, wie

  3. NDE during precision manufacturing of pressure components in nuclear reactors

    International Nuclear Information System (INIS)

    Raj, Baldev; Venkataram, B.; Chellapandi, P.

    2010-01-01

    Energy is the critical enabler for all social and economic developments and growth of civilization. For a nation to be energy secure, it should have a balanced and healthy energy basket with a varied mix of energy sources in right proportions depending on the resources of the country. It is now a well realized fact that nuclear energy is an inevitable option that should be present in energy basket of nuclear mature countries. This is due the fact that nuclear power has proved to be (a) capable of generating electricity safely on a large-scale with price stability over long periods of time satisfying a modern economy's significant demand for electricity that must be available round-the-clock; and (b) it is environmentally benign and provides a clean energy source with minimum of green house gas emissions. Internationally, about I 696 electricity is derived from nuclear power. In the Indian context, the contribution from nuclear power currently is about 3%, which needs to be enhanced by 4 fold by 2030 and 10 fold by 2050 if India is to sustain its current gross domestic product. NDE intertwined with materials, manufacturing technology and total life cycle management are crucial to safe and economic nuclear power.

  4. Evaluation of computer-based NDE techniques and regional support of inspection activities

    International Nuclear Information System (INIS)

    Taylor, T.T.; Kurtz, R.J.; Heasler, P.G.; Doctor, S.R.

    1991-01-01

    This paper describes the technical progress during fiscal year 1990 for the program entitled 'Evaluation of Computer-Based nondestructive evaluation (NDE) Techniques and Regional Support of Inspection Activities.' Highlights of the technical progress include: development of a seminar to provide basic knowledge required to review and evaluate computer-based systems; review of a typical computer-based field procedure to determine compliance with applicable codes, ambiguities in procedure guidance, and overall effectiveness and utility; design and fabrication of a series of three test blocks for NRC staff use for training or audit of UT systems; technical assistance in reviewing (1) San Onofre ten year reactor pressure vessel inservice inspection activities and (2) the capability of a proposed phased array inspection of the feedwater nozzle at Oyster Creek; completion of design calculations to determine the feasibility and significance of various sizes of mockup assemblies that could be used to evaluate the effectiveness of eddy current examinations performed on steam generators; and discussion of initial mockup design features and methods for fabricating flaws in steam generator tubes

  5. Frontiers in NDE research nearing maturity for exploitation to ensure structural integrity of pressure retaining components

    International Nuclear Information System (INIS)

    Raj, Baldev; Mukhopadhyay, C.K.; Jayakumar, T.

    2006-01-01

    In this paper, research and developmental efforts that demonstrate high sensitivity detection and characterization of defects and assessment of microstructural degradation, residual stresses and fatigue damage in materials using different non-destructive evaluation (NDE) techniques, have been discussed. Applications of eddy current techniques for quantitative defect characterization and for generalized applications, and remote field eddy current technique for inspection of steam generator and heat exchanger tubes have been discussed. Advanced ultrasonic methods such as time of flight diffraction, synthetic aperture focusing technique, phased array and signal processing for detection, characterization and imaging of defects have been discussed. Applications of ultrasonics and magnetic Barkhausen emission techniques for characterization of microstructures and residual stresses have been discussed. Applications of acoustic emission and infrared thermography techniques for weld quality evaluation of critical nuclear components as part of intelligent processing of materials (IPM) work have been discussed. Application of acoustic emission technique for integrity assessment of pressurized components has been discussed. Development of a software called assets and infrastructure management system (AIMS), for storing and retrieving information for various materials, components and systems, has also been highlighted. The techniques and applications discussed are result of systematic and innovative R and D efforts in the multidisciplinary areas of physics, materials, instrumentation, sensors and softwares for providing solutions to various challenging problems

  6. DISC1, PDE4B, and NDE1 at the centrosome and synapse

    International Nuclear Information System (INIS)

    Bradshaw, Nicholas J.; Ogawa, Fumiaki; Antolin-Fontes, Beatriz; Chubb, Jennifer E.; Carlyle, Becky C.; Christie, Sheila; Claessens, Antoine; Porteous, David J.; Millar, J. Kirsty

    2008-01-01

    Disrupted-In-Schizophrenia 1 (DISC1) is a risk factor for schizophrenia and other major mental illnesses. Its protein binding partners include the Nuclear Distribution Factor E Homologs (NDE1 and NDEL1), LIS1, and phosphodiesterases 4B and 4D (PDE4B and PDE4D). We demonstrate that NDE1, NDEL1 and LIS1, together with their binding partner dynein, associate with DISC1, PDE4B and PDE4D within the cell, and provide evidence that this complex is present at the centrosome. LIS1 and NDEL1 have been previously suggested to be synaptic, and we now demonstrate localisation of DISC1, NDE1, and PDE4B at synapses in cultured neurons. NDE1 is phosphorylated by cAMP-dependant Protein Kinase A (PKA), whose activity is, in turn, regulated by the cAMP hydrolysis activity of phosphodiesterases, including PDE4. We propose that DISC1 acts as an assembly scaffold for all of these proteins and that the NDE1/NDEL1/LIS1/dynein complex is modulated by cAMP levels via PKA and PDE4.

  7. Nondestructive Examination (NDE) Detection and Characterization of Degradation Precursors, Technical Progress Report for FY 2012

    Energy Technology Data Exchange (ETDEWEB)

    Ramuhalli, P.; Meyer, R.M.; Fricke, J.M.; Prowant, M.S.; Coble, J.B.; Griffin, J.W.; Pitman, S.G.; Dahl, M.E.; Kafentzis, T.A.; Roosendaal, T.J.

    2012-09-01

    The overall objective of this project was to investigate the effectiveness of nondestructive examination (NDE) technology in detecting material degradation precursors by initiating and growing cracks in selected materials and using NDE methods to measure crack precursors prior to the onset of cracking. Nuclear reactor components are subject to stresses over time that are not precisely known and that make the life expectancy of components difficult to determine. To prevent future issues with the operation of these plants because of unforeseen failure of components, NDE technology is needed that can be used to identify and quantify precursors to macroscopic degradation of materials. Some of the NDE methods being researched as possible solutions to the precursor detection problem are magnetic Barkhausen noise, nonlinear ultrasonics, acoustic emission, eddy current measurements, and guided wave technology. In FY12, the objective was to complete preliminary assessment of advanced NDE techniques for sensitivity to degradation precursors, using prototypical degradation mechanisms in laboratory-scale measurements. This present document reports on the deliverable that meets the following milestone: M3LW-12OR0402143 – Report detailing an initial demonstration on samples from the crack-initiation tests will be provided (demonstrating acceleration of the work).

  8. NDE and fracture mechanics evaluation of bottom-head weld indications in a BWR reactor pressure vessel

    Energy Technology Data Exchange (ETDEWEB)

    Brickstad, B [Swedish Plant Inspectorate, Stockholm (Sweden)

    1988-12-31

    This document deals with the Non Destructive Examination (NDE) and the fracture mechanics evaluation of bottom head welds in a BWR. The NDE equipment is presented, together with the geometry of evaluated flaw regions. After the fracture mechanics evaluation, it appeared that the plant results fulfilled the usual conditions, and the plant was allowed to operate one more year. (TEC).

  9. Neutron radiography and other NDE tests of main rotor helicopter blades

    International Nuclear Information System (INIS)

    Beer, F.C. de; Coetzer, M.; Fendeis, D.; Silva, A. da Costa E

    2004-01-01

    A few nondestructive examination (NDE) techniques are extensively being used worldwide to investigate aircraft structures for all types of defects. The detection of corrosion and delaminations, which are believed to be the major initiators of defects leading to aircraft structural failures, are addressed by various NDE techniques. In a combined investigation by means of visual inspection, X-ray radiography and shearography on helicopter main rotor blades, neutron radiography (NRad) at SAFARI-1 research reactor operated by Necsa, was performed to introduce this form of NDE testing to the South African aviation industry to be evaluated for applicability. The results of the shearography, visual inspection and NRad techniques are compared in this paper. The main features and advantages of neutron radiography, within the framework of these investigations, will be highlighted

  10. An NDE Approach for Characterizing Quality Problems in Polymer Matrix Composites

    Science.gov (United States)

    Roth, Don J.; Baaklini, George Y.; Sutter, James K.; Bodis, James R.; Leonhardt, Todd A.; Crane, Elizabeth A.

    1994-01-01

    Polymer matrix composite (PMC) materials are periodically identified appearing optically uniform but containing a higher than normal level of global nonuniformity as indicated from preliminary ultrasonic scanning. One such panel was thoroughly examined by nondestructive (NDE) and destructive methods to quantitatively characterize the nonuniformity. The NDE analysis of the panel was complicated by the fact that the panel was not uniformly thick. Mapping of ultrasonic velocity across a region of the panel in conjunction with an error analysis was necessary to (1) characterize properly the porosity gradient that was discovered during destructive analyses and (2) account for the thickness variation effects. Based on this study, a plan for future NDE characterization of PMC's is presented to the PMC community.

  11. A circular aperture array for ultrasonic tomography and quantitative NDE

    Energy Technology Data Exchange (ETDEWEB)

    Nielsen, S A

    1998-08-01

    The main topics of this thesis are ultrasonic tomography and ultrasonic determination of elastic stiffness constants. Both issues are based on a synthetic array with transducer elements distributed uniformly along a circular aperture, i.e., a circular aperture array. The issues are treated both theoretically and experimentally by broadband pulse techniques. Ultrasonic tomography, UCT, from a circular aperture is a relatively new imaging technique in Non-destructive Evaluation (NDE) to acquire cross sectional images in bulk materials. A filtered back-projection algorithm is used to reconstruct images in four different experiments and results of attenuation, velocity and reflection tomograms in Plexiglas of AlSi-alloy cylinders are presented. Two kinds of ultrasonic tomography are introduced: bistatic and monostatic imaging. Both techniques are verified experimentally by Plexiglas cylinders. Different reconstruction artifacts are discussed and theoretical resolution constraints are discussed for various configurations of the circular aperture array. The monostatic technique is used in volumetric imaging. In the experimental verification artificial and real discontinuities in a cylindrical AlSi-alloy are compared with similar discontinuities in a Plexiglas specimen. Finally, some limitations to UCT are discussed. The circular aperture array is used to determine five independent elastic stiffness constants of a unidirectional glass/PET (Poly Ethylene Teraphtalate) laminate. Energy flux propagation and attenuation of ultrasonic waves are considered and velocity surfaces are calculated for different planes of interest. Relations between elastic stiffness constants and engineering constants (i.e., Young`s moduli, shear moduli and Poisson`s ratios) are discussed for an orthotropic composite. Six micromechanical theories are reviewed, and expressions predicting the elastic engineering constants are evaluated. The micromechanical predicted elastic stiffness constants for the

  12. Advanced defect detection algorithm using clustering in ultrasonic NDE

    Science.gov (United States)

    Gongzhang, Rui; Gachagan, Anthony

    2016-02-01

    A range of materials used in industry exhibit scattering properties which limits ultrasonic NDE. Many algorithms have been proposed to enhance defect detection ability, such as the well-known Split Spectrum Processing (SSP) technique. Scattering noise usually cannot be fully removed and the remaining noise can be easily confused with real feature signals, hence becoming artefacts during the image interpretation stage. This paper presents an advanced algorithm to further reduce the influence of artefacts remaining in A-scan data after processing using a conventional defect detection algorithm. The raw A-scan data can be acquired from either traditional single transducer or phased array configurations. The proposed algorithm uses the concept of unsupervised machine learning to cluster segmental defect signals from pre-processed A-scans into different classes. The distinction and similarity between each class and the ensemble of randomly selected noise segments can be observed by applying a classification algorithm. Each class will then be labelled as `legitimate reflector' or `artefacts' based on this observation and the expected probability of defection (PoD) and probability of false alarm (PFA) determined. To facilitate data collection and validate the proposed algorithm, a 5MHz linear array transducer is used to collect A-scans from both austenitic steel and Inconel samples. Each pulse-echo A-scan is pre-processed using SSP and the subsequent application of the proposed clustering algorithm has provided an additional reduction to PFA while maintaining PoD for both samples compared with SSP results alone.

  13. An Advanced Ultrasonic Imaging System using Time-Reversal MUSIC Technique for Rapid Inspection of Ultra Large, Complex Composite Structures, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — NASA seeks advanced Nondestructive Evaluation (NDE) sensor systems with advanced processing and displays to provide reliable assessments of the location and severity...

  14. Applications of field portable computers to NDE of nuclear power plant steam turbine/generator rotors, discs, and retaining rings

    International Nuclear Information System (INIS)

    Reinhart, E.R.; Leon-Salamanca, T.

    2004-01-01

    The new generation of compact, powerful portable computers have been incorporated into a number of nondestructive evaluation (NDE) systems used to inspect critical areas of the steam turbine and generator units of nuclear power plants. Due to the complex geometry of turbine rotors, generator rotors, retaining rings, and shrunk-on turbine discs, the computers are needed to rapidly calculate the optimum position of an ultrasonic transducer or eddy current probe in order to detect defects at several critical areas. Examples where computers have been used to overcome problems in nondestructive evaluation include; analysis of large numbers of closely spaced near-bore ultrasonic reflectors to determine their potential for link-up in turbine and generator rotor bores, distinguishing ultrasonic crack signals from other reflectors such as the shrink-fit form reflector detected during ultrasonic scanning of shrunk-on generator retaining rings, and detection and recording of eddy current and ultrasonic signals from defects that could be missed by data acquisition systems with inadequate response. The computers are also used to control scanners to insure total inspection coverage. To facilitate the use of data from detected discontinuities in conjunction with stress and fracture mechanics analysis programs, the computers provide presentations of flaws in color and in three dimensions. The field computers have been instrumental in allowing the inspectors to develop on-site reports that enable the owner/operator to rapidly make run/repair/replace decisions. Examples of recent experiences using field portable computers in NDE systems will be presented along with anticipated future developments. (author)

  15. Additive Manufacturing (AM) Activities and Non-Destructive Evaluation (NDE) at GSFC

    Science.gov (United States)

    Jones, Justin S.

    2017-01-01

    NASA personnel will be meeting with a delegation from the Japan Aerospace Exploration Agency (JAXA) Office of Safety and Mission Assurance (OSMA) at Langley Research Center on 2217 through 3217. The purpose of the meeting is a technical interchange between NASA and JAXA to discuss Non-Destructive Evaluation (NDE) of Additive Manufacturing (AM) parts and the HALT process (relates to accelerated life testing). The visitors will be a small group of Japanese citizens. Goddard Space Flight Center (GSFC) has been asked to participate in the meeting, either in person or via teleconference. This presentation covers NDE efforts at GSFC and provides a cursory overview of AM and lab capabilities.

  16. EPRI research program NDE techniques for crack initiation of steam turbine rotor

    International Nuclear Information System (INIS)

    Goto, T.; Kimura, J.; Kawamoto, K.; Kadoya, Y.; Viswanathan, R.

    1990-01-01

    EPRI RP 2481-8 aims at the development of nondestructive methods for the life assessment of steam turbine rotor for its crack initiation caused by creep and/or fatigue. As a part of the research project, the demonstration of the state of the art NDE techniques was conducted during June to August of 1988 at EPRI NDE Center, Charlotte, N.C. by Mitsubishi Heavy Industries, Ltd. using four rotors retired after long term service (16-22x10 4 hr). This paper introduces the results of the demonstration

  17. Strukturwandel, Verbandsabstinenz, Tarifflucht : zur Lage der Unternehmen und Arbeitgeberverbände im ostdeutschen verarbeitenden Gewerbe

    OpenAIRE

    Ettl, Wilfried; Heikenroth, André

    1996-01-01

    "Im Kontext der am Start der ostdeutschen Transformation vorgenommenen wirtschaftspolitischen Richtungsentscheidungen erwies sich die flächentarifvertragliche Normierung von Arbeits- und Entlohnungsbedingungen für die Arbeitgeberverbände als organisationspolitisch dysfunktional, weil sie der Differenzierung betriebswirtschaftlicher Kostenbedingungen und Interessenlagen im rasanten Strukturwandel nicht gerecht werden konnte. Anhand der Ergebnisse einer Befragung ostdeutscher ...

  18. ¿Dónde vamos con los Entornos Personales de Aprendizaje?

    OpenAIRE

    Attwell, Graham

    2013-01-01

    Para citar: Attwel, G. (2013). ¿Dónde vamos con los Entornos Personales de Aprendizaje? En L. Castañeda y J. Adell (Eds.), Entornos Personales de Aprendizaje: Claves para el ecosistema educativo en red (pp. 189-192). Alcoy: Marfil.

  19. Nuclear Technology. Course 26: Nondestructive Examination (NDE) Techniques I. Module 26-5, Fundamentals of Radiography.

    Science.gov (United States)

    Groseclose, Richard

    This fifth in a series of seven modules for a course titled Nondestructive Examination (NDE) Techniques I explains the radiographic process, from radiation source selection to equipment and specimen selection and arrangement, and film processing. The module follows a typical format that includes the following sections: (1) introduction, (2) module…

  20. Nuclear Technology. Course 26: Nondestructive Examination (NDE) Techniques I. Module 26-6, Radiography Inspection.

    Science.gov (United States)

    Pelton, Rick; Espy, John

    This sixth in a series of seven modules for a course titled Nondestructive Examination (NDE) Techniques I explains radiographic inspection as a means of nondestructively examining components, assemblies, structures, and fabricated piping. The module follows a typical format that includes the following sections: (1) introduction, (2) module…

  1. Neutron radiography and other NDE tests of main rotor helicopter blades

    CSIR Research Space (South Africa)

    De Beer, FC

    2004-10-01

    Full Text Available leading to aircraft structural failures, are addressed by various NDE techniques. In a combined investigation by means of visual inspection, X-ray radiography and shearography on helicopter main rotor blades, neutron radiography (NRad) at SAFARI-1 research...

  2. Nuclear Technology. Course 26: Nondestructive Examination (NDE) Techniques I. Module 26-3, Hydrostatic Tests.

    Science.gov (United States)

    Pelton, Rick; Espy, John

    This third in a series of seven modules for a course titled Nondestructive Examination (NDE) Techniques I describes the principles and practices associated with hydrostatic testing. The module follows a typical format that includes the following sections: (1) introduction, (2) module prerequisites, (3) objectives, (4) notes to instructor/student,…

  3. EPRI steam turbine and generator NDE, life assessment, and maintenance workshop

    International Nuclear Information System (INIS)

    Nottingham, L.D.; Sabourin, P.F.

    1992-10-01

    On July 16--19, 1991, the EPRI NDE Center hosted the second EPRI Steam Turbine and Generator NDE, Life Assessment and Maintenance Workshop. This workshop was co-sponsored by the Nuclear Power and the Generation and Storage Divisions of EPRI. Attendees represented all sectors of the industry including utilities, equipment manufacturers, forging suppliers, service organizations, government organizations, insurancecarriers, and consultants from the United States and abroad. Domestic utility presence was again strong, with 105 representatives from 44 utilities in attendance. Australia, Canada, England, Finland, France, Germany, Italy, Japan, Korea, New Zealand, Spain, Sweden and Switzerland were represented in the international contingent. A key and integral part of the workshop was a vendor equipment fair, in which some 23 organizations displayed and demonstrated equipment and services that they offer. Formal presentation of 53 technical papers made up the technical portion of the agenda, which also included two breakout discussion sessions on topical subjects. To provide optimum opportunity for participants to hear all presentations on closely related topics, the sessions were set such that a NDE session ran parallel to the life assessment session. The first NDE session included turbine related topics while the first life assessment session addressed generator issues. The last sessions of the workshop were just reversed with turbine topics being addressed in the life assessment session while generator issues were presented in the NDE session. Presentations on maintenance topics and on monitoring and diagnostics topics were also presented in parallel sessions. These proceedings contain the texts of the papers presented at the workshop. Individual papers in indexed separately

  4. NDE of Possible Service-Induced PWSCC in Control Rod Drive Mechanism Housings Removed from Service

    International Nuclear Information System (INIS)

    Cumblidge, Stephen E.; Doctor, Steven R.; Schuster, George J.; Harris, Robert V.; Crawford, Susan L.

    2006-01-01

    Studies being conducted at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington are being performed to assess the effectiveness of nondestructive examination (NDE) techniques on removed-from-service control rod drive mechanism (CRDM) nozzles and the associated J-groove attachment welds. This work is being performed to provide information to the United States Nuclear Regulatory Commission (US NRC) on the effectiveness of NDE techniques such as ultrasonic testing (UT), eddy current testing (ET), and visual testing (VT) as related to the in-service inspection of CRDM nozzles and J-groove weldments, and to enhance the knowledge base of primary water stress corrosion cracking (PWSCC) through destructive characterization of the CRDM assemblies. The basic NDE measurements follow standard industry techniques for conducting in-service inspections of CRDM nozzles and the crown of the J-groove welds and buttering. In addition, laboratory-based NDE methods were employed to conduct inspections of the CRDM assemblies, with particular emphasis on the J-groove weld and buttering. This paper describes the NDE measurements that were employed on the two CRDMs to detect and characterize the indications and the analysis of these indications. The two CRDM assemblies were removed from service from the North Anna 2 vessel head, including the CRDM nozzle, the J-groove weld, buttering, and a portion of the ferritic head material. One nozzle contains suspected PWSCC, based on in-service inspection data; the second contains evidence suggesting through-wall leakage, although this was unconfirmed. A destructive test plan is being developed to directly characterize the indications found using nondestructive testing. The results of this destructive testing will be included when the destructive testing is completed.

  5. Kurumlar-Arası Sistem Kullanımının İşletme Performansı Üzerindeki Etkisinde Tedarik Zinciri İşbirliğinin Aracılık Rolünün Analizi: Türk İnşaat Sektöründe Bir Uygulama(The Analysis of The Mediation Role of Supply Chain Collaboration on The Effect of Inter-Organizational System Usage to Firm Performance: An Application in Turkish Construction Sector

    Directory of Open Access Journals (Sweden)

    Cengiz YILMAZ

    2016-04-01

    Full Text Available Genel olarak kurumlar-arası sistemler (KS olarak bilinen internet tabanlı teknolojiler, işletmeleri tedarik zincirlerindeki ortaklar ile bütünleştirirler ve işletmelere süreçlerini optimize edebilme fırsatı verirler. Bu çalışmada, işletmelerin kendi başarıları yerine tedarik zincirinin bütünününde elde edilebilecek başarıyı hedef alarak, kurumlar-arası sistemlerin işletme performansına olan etkisinde tedarik zinciri işbirliğinin aracılık rolü hakkında daha fazla bilgi sahibi olabilmek için Türk inşaat sektöründe yapılan bir uygulama çalışmasını konu edinmektedir. Türk inşaat sektöründe yapılan bu çalışmadan 138 tane kullanılabilir anket elde edilmiştir ve çalışma analizleri bu anketlerin verilerine göre yapısal eşitlik modellemesi (Lisrel ile kullanılarak yapılmıştır. Araştırma sonuçları, KS kullanımı işletme performansına etki ederken tedarik zinciri işbirliğinin tam bir aracılık rolü üstlendiğini desteklemektedir. Çalışma, bu nedenle tedarik zinciri işbirliğinin kullanımında ve yönetilmesinde ortaklaşa yapılan çalışmaların önemini vurgulamaktadır. Araştırmanın sonunda ise ileride yapılabilecek çalışmalar için öneriler sunulmuştur Internet based technologies, particularly inter-organizational systems (IOS, integrates firms with their supply chain members and give them the opportunity to optimize their processes. So, by working together, firms achieve greater successes than working alone. This study aims this holistic success instead of individual, so in order to have more information about this issue, it examines the mediation role of supply chain collaboration while inter-organizational systems affect the firm performance. Data are collected from national construction sector and 138 usable responses were taken. The statistical methods used include confirmatory factor analysis and structural equation modelling (i.e. LISREL. According to

  6. Development of composite calibration standard for quantitative NDE by ultrasound and thermography

    Science.gov (United States)

    Dayal, Vinay; Benedict, Zach G.; Bhatnagar, Nishtha; Harper, Adam G.

    2018-04-01

    Inspection of aircraft components for damage utilizing ultrasonic Non-Destructive Evaluation (NDE) is a time intensive endeavor. Additional time spent during aircraft inspections translates to added cost to the company performing them, and as such, reducing this expenditure is of great importance. There is also great variance in the calibration samples from one entity to another due to a lack of a common calibration set. By characterizing damage types, we can condense the required calibration sets and reduce the time required to perform calibration while also providing procedures for the fabrication of these standard sets. We present here our effort to fabricate composite samples with known defects and quantify the size and location of defects, such as delaminations, and impact damage. Ultrasonic and Thermographic images are digitally enhanced to accurately measure the damage size. Ultrasonic NDE is compared with thermography.

  7. Assessment of the TRINO reactor pressure vessel integrity: theoretical analysis and NDE

    Energy Technology Data Exchange (ETDEWEB)

    Milella, P P; Pini, A [ENEA, Rome (Italy)

    1988-12-31

    This document presents the method used for the capability assessment of the Trino reactor pressure vessel. The vessel integrity assessment is divided into the following parts: transients evaluation and selection, fluence estimate for the projected end of life of the vessel, characterization of unirradiated and irradiated materials, thermal and stress analysis, fracture mechanics analysis and eventually fracture input to Non Destructive Examination (NDE). For each part, results are provided. (TEC).

  8. Inspection of copper canisters for spent nuclear fuel by means of ultrasound. NDE of friction stir welds, nonlinear acoustics, ultrasonic imaging

    Energy Technology Data Exchange (ETDEWEB)

    Stepinski, Tadeusz (ed.); Lingvall, Fredrik; Wennerstroem, Erik; Ping Wu [Uppsala Univ., Dept. of Materials Science (Sweden). Signals and Systems

    2004-01-01

    This report contains results concerning advanced ultrasound for the inspection of copper canisters for spent nuclear fuel obtained at Signals and Systems, Uppsala University in years 2002/2003. After a short introduction a review of the NDE techniques that have been applied to the assessment of friction stir welds (FSW) is presented. The review is based on the results reported by the specialists from the USA, mostly from the aerospace industry. A separate chapter is devoted to the extended experimental and theoretical research concerning potential of nonlinear waves in NDE applications. Further studies concerning nonlinear propagation of acoustic and elastic waves (classical nonlinearity) are reported. Also a preliminary investigation of the nonlinear ultrasonic detection of contacts and interfaces (non-classical nonlinearity) is included. Report on the continuation of previous work concerning computer simulation of nonlinear propagations of ultrasonic beams in water and in immersed solids is also presented. Finally, results of an investigation concerning a new method of synthetic aperture imaging (SAI) and its comparison to the traditional phased array (PA) imaging and to the synthetic aperture focusing technique (SAFT) are presented. A new spatial-temporal filtering method is presented that is a generalization of the previously proposed filter. Spatial resolution of the proposed method is investigated and compared experimentally to that of classical SAFT and PA imaging. Performance of the proposed method for flat targets is also investigated.

  9. Inspection of copper canisters for spent nuclear fuel by means of ultrasound. NDE of friction stir welds, nonlinear acoustics, ultrasonic imaging

    International Nuclear Information System (INIS)

    Stepinski, Tadeusz; Lingvall, Fredrik; Wennerstroem, Erik; Ping Wu

    2004-01-01

    This report contains results concerning advanced ultrasound for the inspection of copper canisters for spent nuclear fuel obtained at Signals and Systems, Uppsala University in years 2002/2003. After a short introduction a review of the NDE techniques that have been applied to the assessment of friction stir welds (FSW) is presented. The review is based on the results reported by the specialists from the USA, mostly from the aerospace industry. A separate chapter is devoted to the extended experimental and theoretical research concerning potential of nonlinear waves in NDE applications. Further studies concerning nonlinear propagation of acoustic and elastic waves (classical nonlinearity) are reported. Also a preliminary investigation of the nonlinear ultrasonic detection of contacts and interfaces (non-classical nonlinearity) is included. Report on the continuation of previous work concerning computer simulation of nonlinear propagations of ultrasonic beams in water and in immersed solids is also presented. Finally, results of an investigation concerning a new method of synthetic aperture imaging (SAI) and its comparison to the traditional phased array (PA) imaging and to the synthetic aperture focusing technique (SAFT) are presented. A new spatial-temporal filtering method is presented that is a generalization of the previously proposed filter. Spatial resolution of the proposed method is investigated and compared experimentally to that of classical SAFT and PA imaging. Performance of the proposed method for flat targets is also investigated

  10. Use of NDE and FM for the assessment of remaining life of steam turbines

    Energy Technology Data Exchange (ETDEWEB)

    Alley, T [Duke Power Co., Charlotte, NC (United States); Stone, R [Electric Power Research Inst., Charlotte, NC (United States). Nondestructive Evaluation Center

    1988-12-31

    Catastrophic failures of rotating turbine components, such as the Gallatin rotor burst in 1974 and the shrunk-on disk rupture at Hinkley Point in 1969, alerted the utility industry to the failure potential of these components. Such failures can cause severe financial loss; endanger personnel; and, in nuclear plants, damage safety related equipment. To adequately predict the remaining life of a turbine rotor requires accurate information about component flaws, material properties, future operating loads, relevant failure mechanisms, and an approach to combine this information to make an assessment of remaining life. EPRI has supported the development of improved ultrasonic test equipment for use from the rotor bore (bore-sonic examination) and a fracture mechanics based life assessment code called SAFER (Stress and Fracture Evaluation of Rotors). The EPRI NDE Center has supported the transfer of this technology to industry. This presentation deals with the NDE Center`s transfer of the NDE and life assessment technology to industry and discusses a particular application by Duke Power Company at their Allen Plant, Unit 1 to extend the operating life of an IP/LP turbine. (author).

  11. Use of NDE and FM for the assessment of remaining life of steam turbines

    International Nuclear Information System (INIS)

    Alley, T.; Stone, R.

    1988-01-01

    Catastrophic failures of rotating turbine components, such as the Gallatin rotor burst in 1974 and the shrunk-on disk rupture at Hinkley Point in 1969, alerted the utility industry to the failure potential of these components. Such failures can cause severe financial loss; endanger personnel; and, in nuclear plants, damage safety related equipment. To adequately predict the remaining life of a turbine rotor requires accurate information about component flaws, material properties, future operating loads, relevant failure mechanisms, and an approach to combine this information to make an assessment of remaining life. EPRI has supported the development of improved ultrasonic test equipment for use from the rotor bore (bore-sonic examination) and a fracture mechanics based life assessment code called SAFER (Stress and Fracture Evaluation of Rotors). The EPRI NDE Center has supported the transfer of this technology to industry. This presentation deals with the NDE Center's transfer of the NDE and life assessment technology to industry and discusses a particular application by Duke Power Company at their Allen Plant, Unit 1 to extend the operating life of an IP/LP turbine. (author)

  12. An interaction between NDE1 and high birth weight increases schizophrenia susceptibility.

    Science.gov (United States)

    Wegelius, Asko; Pankakoski, Maiju; Tomppo, Liisa; Lehto, Ulriika; Lönnqvist, Jouko; Suvisaari, Jaana; Paunio, Tiina; Hennah, William

    2015-12-15

    Pre- and perinatal environmental factors have been shown to increase schizophrenia risk particularly when combined with genetic liability. The investigation of specific gene environment interactions in the etiology of psychiatric disorders has gained momentum. We used multivariate GEE regression modeling to investigate the interaction between genes of the DISC1 pathway and birth weight, in relation to schizophrenia susceptibility in a Finnish schizophrenia family cohort. The study sample consisted of 457 subjects with both genotype and birth weight information. Gender and place of birth were adjusted for in the models. We found a significant interaction between birth weight and two NDE1 markers in relation to increased schizophrenia risk: a four SNP haplotype spanning NDE1 (b=1.26, SE=0.5, p=0.012) and one of its constituent SNPs rs4781678 (b=1.33, SE=0.51, p=0.010). Specifically, high birth weight (>4000g) was associated with increased schizophrenia risk among subjects homozygous for the previously identified risk alleles. The study was based on a family study sample with high genetic loading for schizophrenia and thus our findings cannot directly be generalized as representing the general population. Our results suggest that the functions mediated by NDE1 during the early stages of neurodevelopment are susceptible to the additional disruptive effects of pre- and perinatal environmental factors associated with high birth weight, augmenting schizophrenia susceptibility. Copyright © 2015 The Authors. Published by Elsevier Ireland Ltd.. All rights reserved.

  13. Quantitative ultrasonic coda wave (diffuse field) NDE of carbon-fiber reinforced polymer plates

    Science.gov (United States)

    Livings, Richard A.

    The increasing presence and applications of composite materials in aerospace structures precipitates the need for improved Nondestructive Evaluation (NDE) techniques to move from simple damage detection to damage diagnosis and structural prognosis. Structural Health Monitoring (SHM) with advanced ultrasonic (UT) inspection methods can potentially address these issues. Ultrasonic coda wave NDE is one of the advanced methods currently under investigation. Coda wave NDE has been applied to concrete and metallic specimens to assess damage with some success, but currently the method is not fully mature or ready to be applied for SHM. Additionally, the damage diagnosis capabilities and limitations of coda wave NDE applied to fibrous composite materials have not been widely addressed in literature. The central objective of this work, therefore, is to develop a quantitative foundation for the use of coda wave NDE for the inspection and evaluation of fibrous composite materials. Coda waves are defined as the superposition of late arriving wave modes that have been scattered or reflected multiple times. This results in long, complex signals where individual wave modes cannot be discriminated. One method of interpreting the changes in such signals caused by the introduction or growth of damage is to isolate and quantify the difference between baseline and damage signals. Several differential signal features are used in this work to quantify changes in the coda waves which can then be correlated to damage size and growth. Experimental results show that coda wave differential features are effective in detecting drilled through-holes as small as 0.4 mm in a 50x100x6 mm plate and discriminating between increasing hole diameter and increasing number of holes. The differential features are also shown to have an underlying basis function that is dependent on the hole volume and can be scaled by a material dependent coefficient to estimate the feature amplitude and size holes. The

  14. NDE of stainless steel and on-line leak monitoring of LWRs. Annual report, October 1983-September 1984

    International Nuclear Information System (INIS)

    Kupperman, D.S.; Claytor, T.N.; Prine, D.W.

    1985-04-01

    The application of ultrasonic velocity and attenuation measurements to characterize the microstructure of structural materials is discussed. Results of a workshop on NDE of stainless steel pipes with weld overlays are presented. No currently available, single leak-detection method for reactor cooling systems combines optimal leakage detection sensitivity, leak-locating ability, and leakage measurement accuracy. Current practice with regard to leak detection has been reviewed and assessed for 74 operating plants, including both BWRs and PWRs. Seven cracks, including three field-induced IGSCC specimens and two thermal-fatigue cracks, have been installed in the acoustic leak detection (ALD) facility at ANL. Cross-correlation techniques to improve leak location capabilities have been successfully demonstrated on the laboratory pipe run by use of 375-kHz transducers on waveguides and an electronically simulated leak signal. Preliminary leak detection and location tests have also been run at ANL with a breadboard ALD system. In addition to ALD experiments, laboratory tests have been carried out to help assess the effectiveness of moisture-sensitive tape

  15. NDE measurements for understanding of performance: A few case studies on engineering components, human health and cultural heritage

    Science.gov (United States)

    Raj, Baldev; Venkatraman, B.

    2013-01-01

    Life cycle management involves a seamless integration of materials, design, analysis, production, manufacturing, and degradation plus, a wide variety of disciplines relating to surveillance and characterisation with adequate feedback and control. Science and technology of non-destructive evaluation (NDE) links all these domains and disciplines together in a seamless and robust manner. A number of research programs on NDE science and technology have evolved during the last four decades world over including the one at Indira Gandhi Centre for Atomic Research, Kalpakkam, initiated and nurtured by the first author. Many engineering and technology challenges pertaining to fast spectrum reactors have been successfully solved by this Centre through development of innovative sensors, procedures and coupled with strong basic science and modeling approaches. These technologies have also been selectively applied in gaining insights of human health and cultural heritage. This paper highlights some of the innovative NDE sensors and techniques developed in the field of electromagnetic NDE and their successful applications. A few interesting case studies pertaining to NDE in heritage and healthcare using acoustic and thermal methods are also presented.

  16. Component wall thinning and a corrosion-erosion monitoring system

    International Nuclear Information System (INIS)

    Bogard, T.; Batt, T.; Roarty, D.

    1989-01-01

    Since a 1986 incident involving failure of a piping elbow due to erosion-corrosion, the electric utility industry has been actively developing technology for implementing long term programs to address corrosion-erosion. This paper describes a typical corrosion-erosion monitoring program, the types of non-destructive examinations (NDE) performed on components, and the extensive NDE data obtained when the program is applied to components in a power plant. To facilitate evaluation of the NDE data on components, an automated NDE data manipulation and data display system is advisable and perhaps necessary due to the large amounts of NDE data typically obtained during a program. Such a comprehensive corrosion-erosion monitoring system (CEMS) needs to be integral with methods for selection of inspection locations and perform NDE data analysis to help in replace, repair, or run decisions. The structure for one CEMS is described which uses IBM PC compatible hardware and a set of software addressing most data evaluation and decision making needs. CEMS features include automated input/output for typical NDE devices, database structuring, graphics outputs including color 2-D or 3-D contour plots of components, trending and predictive evaluations for future inspection planning, EC severity determination, integration of piping isometrics and component properties, and desktop publishing capabilities

  17. Siserände suundumused 20. sajandil = Trends of internal migration during the 20th century and at the beginning of the 21st century / Alis Tammur

    Index Scriptorium Estoniae

    Tammur, Alis

    2008-01-01

    Siserände suundadest Eestis alates 1920ndatest aastatest kuni 2007. aastani. Kaart: Linnadesse tulnud endise alalise elukoha järgi, 1922-1934. Graafik: Siserände vanusjaotus. Tabel: Linnade ja maa-asulate vahelised rändesuunad 2000-2007

  18. NDE of stresses in thick-walled components by ultrasonic methods

    International Nuclear Information System (INIS)

    Goebbels, K.; Pitsch, H.; Schneider, E.; Nowack, H.

    1985-01-01

    The possibilty of measuring stresses - especially residual stresses - by ultrasonic methods has been presented at the 4th and 5th International Conference on NDE in Nuclear Industry. This contribution now presents results of several applications to thick walled components such as turbines and generators for power plants. The measurement technique using linearly polarized shear waves allows one to characterize the homogeneitry of the residual stress situation along and around cylindrically shaped components. Some important results show that the stress distribution integrated over the cross section of the component has not followed in any case the simple relations derived by stress analysts. Conclusions referring to the stress situation inside the components are discussed

  19. European-American workshop: Determination of reliability and validation methods on NDE. Proceedings

    International Nuclear Information System (INIS)

    1997-01-01

    The invited papers focused on the following issues: 1. The different technical and scientific approaches to the problem of how to guarantees or demonstrate the reliability of NDE: a. Application of established prescriptive standards, b. Probabilities of Detection (PDO) and False Alarm (PFA) from blind trials, c. POD and PFA from signal statistics, d. Modeling, e. ''Technical Justification''; 2. The dissimilar validation/qualification concepts used in different industries in Europe and North America: a. Nuclear Power Generation, b. Aerospace Industry, c. Offcshore Industry and d. Service Companies

  20. Untersuchungen zur Anwendbarkeit eines integrierten Nachweissystems für Penicillin-Rückstände in Kuhmilch und Ziegenmilch

    OpenAIRE

    Kress, Claudia

    2010-01-01

    In der vorliegenden Arbeit wurde die Anwendbarkeit eines integrierten Nachweissystems für Penicillin-Rückstände in Kuhmilch und Ziegenmilch überprüft. Der zweite Schwerpunkt dieser Arbeit lag auf der Hemmstoffbelastung von Ziegenmilch, d.h. es sollte ein Überblick über die Belastung der in Hessen produzierten Ziegenmilch mit Penicillin-Rückständen gewonnen werden. Die „Kernmethode“ des integrierten Nachweissystems für Penicillin-Rückstände in Kuhmilch und Ziegenmilch ist ein...

  1. Assessment of NDE Methods on Inspection of HDPE Butt Fusion Piping Joints for Lack of Fusion with Validation from Mechanical Testing

    International Nuclear Information System (INIS)

    Anderson, Michael T.; Cinson, Anthony D.; Crawford, Susan L.; Doctor, Steven R.; Moran, Traci L.; Watts, Michael W.

    2010-01-01

    Studies at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington, are being conducted to evaluate nondestructive examinations (NDE) coupled with mechanical testing of butt fusion joints in high-density polyethylene (HDPE) pipe for assessing lack of fusion. The work provides information to the U.S. Nuclear Regulatory Commission (NRC) on the effectiveness of volumetric inspection techniques of HDPE butt fusion joints in Section III, Division 1, Class 3, buried piping systems in nuclear power plants. This paper describes results from preliminary assessments using ultrasonic and microwave nondestructive techniques and mechanical testing with the high-speed tensile impact test and the side-bend test for determining joint integrity. A series of butt joints were fabricated in 3408, 12-in. IPS DR-11 HDPE material by varying the fusion parameters to create good joints and joints containing a range of lack-of-fusion conditions. Six of these butt joints were volumetrically examined with time-of-flight diffraction (TOFD), phased-array (PA) ultrasound, and the Evisive microwave system. The outer-diameter weld beads were removed for the microwave inspection. In two of the four pipes, both the outer and inner weld beads were removed and the pipe joints re-evaluated. The pipes were sectioned and the joints destructively evaluated with the side-bend test by cutting portions of the fusion joint into slices that were planed and bent. The last step in this limited study will be to correlate the fusion parameters, nondestructive, and destructive evaluation results to validate the effectiveness of what each NDE technology detects and what each does not detect. The results of the correlation will be used in identifying any future work that is needed.

  2. Advances in the application of holography for NDE

    Science.gov (United States)

    Sciammarella, C. A.

    1985-01-01

    The basic methodology of holographic interferometry in nondestructive testing (NDT) applications are described. Applications to crack detection in ceramic materials, including a crack 50 microns deep in a turbine blade, are discussed in detail. The theoretical principles of holographic interferometry are explained, and a general description of a holographic interferometric recording system is given. A nondestructive interferometric technique for measuring the gradual erosion of calcareous stones exposed to acid rain is also presented. Detailed line drawings illustrating the hologram recording and interferometric fringe pattern analysis elements in an interferometric holographic NDT device are provided.

  3. Finite-element model of ultrasonic NDE [nondestructive evaluation

    International Nuclear Information System (INIS)

    Lord, W.

    1989-07-01

    An understanding of the way in which ultrasound interacts with defects in materials is essential to the development of improved nondestructive testing procedures for the inspection of critical power plant components. Traditionally, the modeling of such phenomena has been approached from an analytical standpoint in which appropriate assumptions are made concerning material properties, geometrical constraints and defect boundaries in order to arrive at closed form solutions. Such assumptions, by their very nature, tend to inhibit the development of complete input/output NDT system models suitable for predicting realistic piezoelectric transducer signals from the interaction of pulsed, finite-aperture ultrasound with arbitrarily shaped defects in the kinds of materials of interest to the utilities. The major thrust of EPRI Project RP 2687-2 is to determine the feasibility of applying finite element analysis techniques to overcome these problems. 85 refs., 64 figs., 3 tabs

  4. Suur põgenemine 1944 : eestlaste lahkumine läände ning selle mõjud / Peep Pillak

    Index Scriptorium Estoniae

    Pillak, Peep, 1957-

    2005-01-01

    Välis-Eesti uuringute keskuse ja Rootsi Eesti saatkonna korraldatud teaduskonverensist (Tartu, 22. okt. 2004), kus arutluse all oli 1944. a. suur põgenemine läände ja selle mõjud tänasesse päeva

  5. NDE of stainless steel and on-line leak monitoring of LWRs. Annual report, October 1984-September 1985. Volume 2

    International Nuclear Information System (INIS)

    Kupperman, D.S.; Claytor, T.N.; Mathieson, T.; Prine, D.W.

    1986-02-01

    This progress report summarizes work performed by the Argonne National Laboratory and GARD, Inc. (Division of Chamberlain Mfg. Corp.) as subcontractor on NDE of stainless steel and on-line leak monitoring of LWRs during the 12 months from October 1984 to September 1985. 15 refs., 36 figs

  6. Peatused teekonnal läände : [luuletused] / James Wright ; tõlk. Jüri Talvet

    Index Scriptorium Estoniae

    Wright, James

    2008-01-01

    Sisu: Peatused teekonnal läände ; Kaks kassiahastust ; Kaubamaja kassa juures ; Vastuseks kuuldusele et vanim lõbumaja Wheelingis, Lääne-Virginias, on kinni pandud ; Hiline november põllul ; Sappho järgi mugandatud moraaliluuletus ; Sajandi ood ; Jah, aga. Elu- ja loomeloolisi andmeid autori kohta lk. 535

  7. Nuclear Technology. Course 32: Nondestructive Examination (NDE) II. Module 32-3, Fundamentals of Magnetic Particle Testing.

    Science.gov (United States)

    Groseclose, Richard

    This third in a series of six modules for a course titled Nondestructive Examination (NDE) Techniques II explains the principles of magnets and magnetic fields and how they are applied in magnetic particle testing, describes the theory and methods of magnetizing test specimens, describes the test equipment used, discusses the principles and…

  8. Nuclear Technology. Course 32: Nondestructive Examination (NDE) Techniques II. Module 32-4, Operation of Magnetic Particle Test Equipment.

    Science.gov (United States)

    Groseclose, Richard

    This fourth in a series of six modules for a course titled Nondestructive Examination (NDE) Techniques II describes the specific technique variables and options which are available to the test technician, provides instructions for selecting and operating the appropriate test equipment, describes physical criteria for detectable discontinuities,…

  9. Bulk ultrasonic NDE of metallic components at high temperature using magnetostrictive transducers

    Science.gov (United States)

    Ashish, Antony Jacob; Rajagopal, Prabhu; Balasubramaniam, Krishnan; Kumar, Anish; Rao, B. Purnachandra; Jayakumar, Tammana

    2017-02-01

    Online ultrasonic NDE at high-temperature is of much interest to the power, process and automotive industries in view of possible savings in downtime. This paper describes a novel approach to developing ultrasonic transducers capable of high-temperature in-situ operation using the principle of magnetostriction. Preliminary design from previous research by the authors [1] is extended for operation at 1 MHz, and at elevated temperatures by amorphous metallic strips as the magnetostrictive core. Ultrasonic signals in pulse-echo mode are experimentally obtained from the ultrasonic transducer thus developed, in a simulated high-temperature environment of 350 °C for 10 hours. Advantages and challenges for practical deployment of this approach are discussed.

  10. Shearography: An alternative method of NDE for analysis of corrosion in petroleum pipeline

    International Nuclear Information System (INIS)

    Mohd Yusnisyam Yusof; Wan Saffiey Wan Abdullah

    2009-01-01

    This paper discusses the use of shearography as an alternative method of NDE for analysis of corrosion in petroleum pipeline. Shearography reveals direct information about defect induced stress which utilized the laser wave front pattern on the inspected object. In this study, the laser shearography technique was used to measure the derivative displacement of 7 mm thickness carbon steel pipe wall surface with simulated corrosion area at internal wall. The wave front pattern of internal wall corrosion in petroleum pipeline will be constructed to 3D image profiles in order to measure the severity and magnitude of material deformation. The process may involve of optical phase stepping procedure and the image processing algorithm for wrapped and unwrapped phase image at the deformation area. The unwrapped phase image can be meshed plot which finally lead to 3D image profiles. The phase stepping procedure in this analysis was selected by utilizing four phase stepping procedure using piezoelectric transducer (PZT) attached with optical mirror. (author)

  11. Processing and Probability Analysis of Pulsed Terahertz NDE of Corrosion under Shuttle Tile Data

    Science.gov (United States)

    Anastasi, Robert F.; Madaras, Eric I.; Seebo, Jeffrey P.; Ely, Thomas M.

    2009-01-01

    This paper examines data processing and probability analysis of pulsed terahertz NDE scans of corrosion defects under a Shuttle tile. Pulsed terahertz data collected from an aluminum plate with fabricated corrosion defects and covered with a Shuttle tile is presented. The corrosion defects imaged were fabricated by electrochemically etching areas of various diameter and depth in the plate. In this work, the aluminum plate echo signal is located in the terahertz time-of-flight data and a threshold is applied to produce a binary image of sample features. Feature location and area are examined and identified as corrosion through comparison with the known defect layout. The results are tabulated with hit, miss, or false call information for a probability of detection analysis that is used to identify an optimal processing threshold.

  12. Feasibility study on infrared electro-thermal NDE of stainless steel

    International Nuclear Information System (INIS)

    Green, D.R.; Hassberger, J.A.

    1975-11-01

    Electro-thermal examination, a branch of thermal testing (TT), is a promising method being developed for NDE of stainless steel welds. This report describes the first phase of development; i.e., preliminary demonstration and laboratory evaluation of the method's sensitivity to notches in Type 304 stainless steel plate specimens. It also includes a description of the basic principles, together with a description of the hardware and experimental results showing that electrical discharge machined notches down to 0.16 cm (0.06 in.) long x 0.08 cm (0.03 in.) deep were detected. A qualitative technique for interpreting the test results to determine whether defects are at the surface or deeper within the material is demonstrated

  13. Three-dimensional NDE of VHTR core components via simulation-based testing. Final report

    International Nuclear Information System (INIS)

    Guzina, Bojan; Kunerth, Dennis

    2014-01-01

    A next generation, simulation-driven-and-enabled testing platform is developed for the 3D detection and characterization of defects and damage in nuclear graphite and composite structures in Very High Temperature Reactors (VHTRs). The proposed work addresses the critical need for the development of high-fidelity Non-Destructive Examination (NDE) technologies for as-manufactured and replaceable in-service VHTR components. Centered around the novel use of elastic (sonic and ultrasonic) waves, this project deploys a robust, non-iterative inverse solution for the 3D defect reconstruction together with a non-contact, laser-based approach to the measurement of experimental waveforms in VHTR core components. In particular, this research (1) deploys three-dimensional Scanning Laser Doppler Vibrometry (3D SLDV) as a means to accurately and remotely measure 3D displacement waveforms over the accessible surface of a VHTR core component excited by mechanical vibratory source; (2) implements a powerful new inverse technique, based on the concept of Topological Sensitivity (TS), for non-iterative elastic waveform tomography of internal defects - that permits robust 3D detection, reconstruction and characterization of discrete damage (e.g. holes and fractures) in nuclear graphite from limited-aperture NDE measurements; (3) implements state-of-the art computational (finite element) model that caters for accurately simulating elastic wave propagation in 3D blocks of nuclear graphite; (4) integrates the SLDV testing methodology with the TS imaging algorithm into a non-contact, high-fidelity NDE platform for the 3D reconstruction and characterization of defects and damage in VHTR core components; and (5) applies the proposed methodology to VHTR core component samples (both two- and three-dimensional) with a priori induced, discrete damage in the form of holes and fractures. Overall, the newly established SLDV-TS testing platform represents a next-generation NDE tool that surpasses

  14. Clinton, Diana, ¿dónde se metieron los periódicos serios?

    Directory of Open Access Journals (Sweden)

    Lic. Francisco Javier Acuña Arias

    1999-01-01

    Full Text Available Uno dividió toda la vida los periódicos en dos clases: los amarillistas y los demás. Los demás eran los "serios", es decir, los que uno leía. Pero a raíz del reciente escándalo de Bill Clinton y la cobertura de la muerte aparatosa de Diana de Gales, cabe preguntarse dónde se metieron los periódicos serios. Revistas tan circunspectas como Time y diarios tan reposados como The New York Times se lanzaron a ver quién era más estrepitoso. Total, lo de Clinton no pasó de ser un chisme de pasillo agrandado a crisis de estado por circunstancias picantes.

  15. Three-dimensional NDE of VHTR core components via simulation-based testing. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Guzina, Bojan [Univ. of Minnesota, Minneapolis, MN (United States); Kunerth, Dennis [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2014-09-30

    A next generation, simulation-driven-and-enabled testing platform is developed for the 3D detection and characterization of defects and damage in nuclear graphite and composite structures in Very High Temperature Reactors (VHTRs). The proposed work addresses the critical need for the development of high-fidelity Non-Destructive Examination (NDE) technologies for as-manufactured and replaceable in-service VHTR components. Centered around the novel use of elastic (sonic and ultrasonic) waves, this project deploys a robust, non-iterative inverse solution for the 3D defect reconstruction together with a non-contact, laser-based approach to the measurement of experimental waveforms in VHTR core components. In particular, this research (1) deploys three-dimensional Scanning Laser Doppler Vibrometry (3D SLDV) as a means to accurately and remotely measure 3D displacement waveforms over the accessible surface of a VHTR core component excited by mechanical vibratory source; (2) implements a powerful new inverse technique, based on the concept of Topological Sensitivity (TS), for non-iterative elastic waveform tomography of internal defects - that permits robust 3D detection, reconstruction and characterization of discrete damage (e.g. holes and fractures) in nuclear graphite from limited-aperture NDE measurements; (3) implements state-of-the art computational (finite element) model that caters for accurately simulating elastic wave propagation in 3D blocks of nuclear graphite; (4) integrates the SLDV testing methodology with the TS imaging algorithm into a non-contact, high-fidelity NDE platform for the 3D reconstruction and characterization of defects and damage in VHTR core components; and (5) applies the proposed methodology to VHTR core component samples (both two- and three-dimensional) with a priori induced, discrete damage in the form of holes and fractures. Overall, the newly established SLDV-TS testing platform represents a next-generation NDE tool that surpasses

  16. Light Water Reactor Sustainability (LWRS) Program – Non-Destructive Evaluation (NDE) R&D Roadmap for Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants

    Energy Technology Data Exchange (ETDEWEB)

    Simmons, K.L.; Ramuhali, P.; Brenchley, D.L.; Coble, J.B.; Hashemian, H.M.; Konnick, R.; Ray, S.

    2012-09-01

    Executive Summary [partial] The purpose of the non-destructive evaluation (NDE) R&D Roadmap for Cables is to support the Materials Aging and Degradation (MAaD) R&D pathway. A workshop was held to gather subject matter experts to develop the NDE R&D Roadmap for Cables. The focus of the workshop was to identify the technical gaps in detecting aging cables and predicting their remaining life expectancy. The workshop was held in Knoxville, Tennessee, on July 30, 2012, at Analysis and Measurement Services Corporation (AMS) headquarters. The workshop was attended by 30 experts in materials, electrical engineering, and NDE instrumentation development from the U.S. Nuclear Regulatory Commission (NRC), U.S. Department of Energy (DOE) National Laboratories (Oak Ridge National Laboratory, Pacific Northwest National Laboratory, Argonne National Laboratory, and Idaho National Engineering Laboratory), universities, commercial NDE service vendors and cable manufacturers, and the Electric Power Research Institute (EPRI).

  17. ¿Cómo y dónde evalúa el cerebro las consecuencias de nuestras decisiones?

    Directory of Open Access Journals (Sweden)

    José L. Pardo-Vázquez

    2010-02-01

    Full Text Available Para aprender de la experiencia y ajustar nuestro comportamiento necesitamos evaluar las consecuencias de nuestra conducta. ¿Cómo y dónde tiene lugar esta evaluación en el cerebro? Recientemente hemos descrito que la información necesaria para alcanzar una decisión y evaluar sus consecuencias está representada en la corteza premotora ventral.

  18. A New Approach to Solve Flowshop Scheduling Problems by Artificial Immune Systems = Akış Tipi Çizelgeleme Problemlerinin Yapay Bağışıklık Sistemleri ile Çözümünde Yeni Bir Yaklaşım

    Directory of Open Access Journals (Sweden)

    Alper DÖYEN

    2007-01-01

    Full Text Available The n-job, m-machine flow shop scheduling problem is one of the most general job scheduling problems. This study deals with the criteria of makespan minimization for the flow shop scheduling problem. Artificial Immune Systems (AIS are new intelligent problem solving techniques that are being used in scheduling problems. AIS can be defined as computational systems inspired by theoretical immunology, observed immune functions, principles and mechanisms in order to solve problems. In this research, a computational method based on clonal selection principle and affinity maturation mechanisms of the immune response is used. The operation parameters of meta-heuristics have an important role on the quality of the solution. Thus, a generic systematic procedure which bases on a multi-step experimental design approach for determining the efficient system parameters for AIS is presented. Experimental results show that, the artificial immune system algorithm is more efficient than both the classical heuristic flow shop scheduling algorithms and simulated annealing.

  19. State of the Art Assessment of NDE Techniques for Aging Cable Management in Nuclear Power Plants FY2015

    Energy Technology Data Exchange (ETDEWEB)

    Glass, Samuel W. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Fifield, Leonard S. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Dib, Gerges [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Tedeschi, Jonathan R. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Jones, Anthony M. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Hartman, Trenton S. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2015-09-08

    This milestone report presents an update on the state-of-the-art review and research being conducted to identify key indicators of in-containment cable aging at nuclear power plants (NPPs), and devise in-situ measurement techniques that are sensitive to these key indicators. The motivation for this study stems from the need to address open questions related to nondestructive evaluation (NDE) of aging cables for degradation detection and estimation of condition-based remaining service life. These questions arise within the context of a second round of license extension for NPPs that would extend the operating license to 60 and 80 years. Within the introduction, a review of recently published U.S. and international research and guidance for cable aging management programs including NDE technologies is provided. As with any “state-of-the-art” report, the observations are deemed accurate as of the publication date but cannot anticipate evolution of the technology. Moreover, readers are advised that research and development of cable NDE technology is an ongoing issue of global concern.

  20. Data combination of infrared thermography images and lock-in thermography images for NDE of plasma facing components

    International Nuclear Information System (INIS)

    Moysan, J.; Gueudre, C.; Corneloup, G.; Durocher, A.

    2006-01-01

    A pioneering activity has been developed by CEA and the European industry in the field of actively cooled high heat flux plasma facing components (PFC) from the very beginning of Tore Supra project. These components have been developed in order to enable a large power exhaust capability. The goal of this study is to improve the Non Destructive Evaluation (NDE) of these components. The difficulty encountered is the evaluation of the junction between a carbon and a metallic substrate. This was even more difficult when complex designs have to be implemented. A first NDE solution was based on the so called SATIR test. The method is based on infrared measurements of tile surface temperatures during a thermal transient produced by hot/cold water flowing in the heat sink cooling channel. In order to improve the definition of acceptance rules for the PFCs, a second NDE method based on Lock-in Thermography is developed. In this work we present how we can combine the two resulting images in order to accept or to reject a component. This prospective study allows improving the experimental setup and the definition of acceptance criteria. The experimental study was conducted on trial components for the Wendelstein 7X stellarator. The conclusions will also influence future non destructive projects dedicated to the ITER project. (orig.)

  1. State of the Art Assessment of NDE Techniques for Aging Cable Management in Nuclear Power Plants FY2015

    International Nuclear Information System (INIS)

    Glass, Samuel W.; Fifield, Leonard S.; Dib, Gerges; Tedeschi, Jonathan R.; Jones, Anthony M.; Hartman, Trenton S.

    2015-01-01

    This milestone report presents an update on the state-of-the-art review and research being conducted to identify key indicators of in-containment cable aging at nuclear power plants (NPPs), and devise in-situ measurement techniques that are sensitive to these key indicators. The motivation for this study stems from the need to address open questions related to nondestructive evaluation (NDE) of aging cables for degradation detection and estimation of condition-based remaining service life. These questions arise within the context of a second round of license extension for NPPs that would extend the operating license to 60 and 80 years. Within the introduction, a review of recently published U.S. and international research and guidance for cable aging management programs including NDE technologies is provided. As with any 'state-of-the-art' report, the observations are deemed accurate as of the publication date but cannot anticipate evolution of the technology. Moreover, readers are advised that research and development of cable NDE technology is an ongoing issue of global concern.

  2. Reactive documentation system

    Science.gov (United States)

    Boehnlein, Thomas R.; Kramb, Victoria

    2018-04-01

    Proper formal documentation of computer acquired NDE experimental data generated during research is critical to the longevity and usefulness of the data. Without documentation describing how and why the data was acquired, NDE research teams lose capability such as their ability to generate new information from previously collected data or provide adequate information so that their work can be replicated by others seeking to validate their research. Despite the critical nature of this issue, NDE data is still being generated in research labs without appropriate documentation. By generating documentation in series with data, equal priority is given to both activities during the research process. One way to achieve this is to use a reactive documentation system (RDS). RDS prompts an operator to document the data as it is generated rather than relying on the operator to decide when and what to document. This paper discusses how such a system can be implemented in a dynamic environment made up of in-house and third party NDE data acquisition systems without creating additional burden on the operator. The reactive documentation approach presented here is agnostic enough that the principles can be applied to any operator controlled, computer based, data acquisition system.

  3. Steam Generator Inspection Planning Expert System

    International Nuclear Information System (INIS)

    Rzasa, P.

    1987-01-01

    Applying Artificial Intelligence technology to steam generator non-destructive examination (NDE) can help identify high risk locations in steam generators and can aid in preparing technical specification compliant eddy current test (ECT) programs. A steam Generator Inspection Planning Expert System has been developed which can assist NDE or utility personnel in planning ECT programs. This system represents and processes its information using an object oriented declarative knowledge base, heuristic rules, and symbolic information processing, three artificial intelligence based techniques incorporated in the design. The output of the system is an automated generation of ECT programs. Used in an outage inspection, this system significantly reduced planning time

  4. Material property relationships for pipeline steels and the potential for application of NDE

    Science.gov (United States)

    Smart, Lucinda; Bond, Leonard J.

    2016-02-01

    The oil and gas industry in the USA has an extensive infrastructure of pipelines, 70% of which were installed prior to 1980, and almost half were installed during the 1950s and 1960s. Ideally the mechanical properties (i.e. yield strength, tensile strength, transition temperature, and fracture toughness) of a steel pipe must be known in order to respond to detected defects in an appropriate manner. Neither current in-ditch methods nor the ILI inspection data have yet determined and map the desired mechanical properties with adequate confidence. In the quest to obtain the mechanical properties of a steel pipe using a nondestructive method, it is important to understand that there are many inter-related variables. This paper reports a literature review and an analysis of a sample set of data. There is promise for correlating the results of NDE measurement modalities to the information required to develop relationships between those measurements and the mechanical measurements desired for pipelines to ensure proper response to defects which are of significant threat.

  5. Classification of Ultrasonic NDE Signals Using the Expectation Maximization (EM) and Least Mean Square (LMS) Algorithms

    International Nuclear Information System (INIS)

    Kim, Dae Won

    2005-01-01

    Ultrasonic inspection methods are widely used for detecting flaws in materials. The signal analysis step plays a crucial part in the data interpretation process. A number of signal processing methods have been proposed to classify ultrasonic flaw signals. One of the more popular methods involves the extraction of an appropriate set of features followed by the use of a neural network for the classification of the signals in the feature spare. This paper describes an alternative approach which uses the least mean square (LMS) method and exportation maximization (EM) algorithm with the model based deconvolution which is employed for classifying nondestructive evaluation (NDE) signals from steam generator tubes in a nuclear power plant. The signals due to cracks and deposits are not significantly different. These signals must be discriminated to prevent from happening a huge disaster such as contamination of water or explosion. A model based deconvolution has been described to facilitate comparison of classification results. The method uses the space alternating generalized expectation maximiBation (SAGE) algorithm ill conjunction with the Newton-Raphson method which uses the Hessian parameter resulting in fast convergence to estimate the time of flight and the distance between the tube wall and the ultrasonic sensor. Results using these schemes for the classification of ultrasonic signals from cracks and deposits within steam generator tubes are presented and showed a reasonable performances

  6. Assessment of NDE Technologies for Detection and Characterization of Stress Corrosion Cracking in LWRs

    Energy Technology Data Exchange (ETDEWEB)

    Meyer, Ryan M.; Ramuhalli, Pradeep; Toloczko, Mychailo B.; Bond, Leonard J.; Montgomery, Robert O.

    2012-12-31

    Stress corrosion cracking (SCC) in light water reactors (LWRs) has been a persistent form of degradation in the nuclear industry. Examples of SCC can be found for a range of materials in boiling and pressurized water reactor environments, including carbon steels, stainless steels, and nickel-base stainless alloys. The evolution of SCC is often characterized by a long initiation stage followed by a phase of more rapid crack growth to failure. This provides a relatively short window of opportunity to detect the start of observable SCC, and it is conceivable that SCC could progress from initiation to failure between subsequent examinations when managed by applying periodic in-service inspection techniques. Implementation of advanced aging management paradigms in the current fleet of LWRs will require adaptation of existing measurement technologies and development of new technologies to perform on-line measurements during reactor operation to ensure timely detection of material degradation and to support the implementation of advanced diagnostics and prognostics. This paper considers several non-destructive examination (NDE) technologies with known sensitivity to detection of indicators for SCC initiation and/or propagation, and assesses these technologies with respect to their ability to detect and accurately characterize the significance of an SCC flaw. Potential strategies to improve SCC inspection or monitoring performance are offered to benefit management of SCC degradation in LWRs.

  7. Assessment of NDE technologies for detection and characterization of stress corrosion cracking in LWRs

    International Nuclear Information System (INIS)

    Meyer, R.M.; Ramuhalli, P.; Toloczko, M.B.; Bond, L.J.; Montgomery, R.O.

    2012-01-01

    Stress corrosion cracking (SCC) in light water reactors (LWRs) has been a persistent form of degradation in the nuclear industry. Examples of SCC can be found for a range of materials in boiling and pressurized water reactor environments, including carbon steels, stainless steels, and nickel-base alloys. The evolution of SCC is often characterized by a long initiation stage followed by a phase of more rapid crack growth to failure. This provides a relatively short window of opportunity to detect the start of observable SCC, and it is conceivable that SCC could progress from initiation to failure between subsequent examinations when managed by applying periodic in-service inspection techniques. Implementation of advanced aging management paradigms in the current fleet of LWRs will require adaptation of existing measurement technologies and development of new technologies to perform on-line measurements during reactor operation to ensure timely detection of material degradation and to support the implementation of advanced diagnostics and prognostics. This paper considers several non-destructive examination (NDE) technologies with known sensitivity to detection of indicators for SCC initiation and/or propagation, and assesses these technologies with respect to their ability to detect and accurately characterize the significance of an SCC flaw. Potential strategies to improve SCC inspection or monitoring performance are offered to benefit management of SCC degradation in LWRs. (author)

  8. Incorporation of composite defects from ultrasonic NDE into CAD and FE models

    Science.gov (United States)

    Bingol, Onur Rauf; Schiefelbein, Bryan; Grandin, Robert J.; Holland, Stephen D.; Krishnamurthy, Adarsh

    2017-02-01

    Fiber-reinforced composites are widely used in aerospace industry due to their combined properties of high strength and low weight. However, owing to their complex structure, it is difficult to assess the impact of manufacturing defects and service damage on their residual life. While, ultrasonic testing (UT) is the preferred NDE method to identify the presence of defects in composites, there are no reasonable ways to model the damage and evaluate the structural integrity of composites. We have developed an automated framework to incorporate flaws and known composite damage automatically into a finite element analysis (FEA) model of composites, ultimately aiding in accessing the residual life of composites and make informed decisions regarding repairs. The framework can be used to generate a layer-by-layer 3D structural CAD model of the composite laminates replicating their manufacturing process. Outlines of structural defects, such as delaminations, are automatically detected from UT of the laminate and are incorporated into the CAD model between the appropriate layers. In addition, the framework allows for direct structural analysis of the resulting 3D CAD models with defects by automatically applying the appropriate boundary conditions. In this paper, we show a working proof-of-concept for the composite model builder with capabilities of incorporating delaminations between laminate layers and automatically preparing the CAD model for structural analysis using a FEA software.

  9. In-Situ NDE Characterization of Kevlar and Carbon Composite Micromechanics for Improved COPV Health Monitoring

    Science.gov (United States)

    Waller, Jess M.; Saulsberry, Regor L.

    2009-01-01

    This project is a subtask of a multi-center project to advance the state-of-the-art by developing NDE techniques that are capable of evaluating stress rupture (SR) degradation in Kevlar/epoxy (K/Ep) composite overwrapped pressure vessels (COPVs), and damage progression in carbon/epoxy (C/Ep) COPVs. In this subtask, acoustic emission (AE) data acquired during intermittent load hold tensile testing of K/Ep and C/Ep composite tow materials-of-construction used in COPV fabrication were analyzed to monitor progressive damage during the approach to tensile failure. Insight into the progressive damage of composite tow was gained by monitoring AE event rate, energy, source location, and frequency. Source location based on arrival time data was used to discern between significant AE attributable to microstructural damage and spurious AE attributable to background and grip noise. One of the significant findings was the observation of increasing violation of the Kaiser effect (Felicity ratio < 1.0) with damage accumulation.

  10. RUSÇUK VE ÇEVRESİNDE CEREHORLAR (1694-1698)

    OpenAIRE

    Çolak, Kamil

    2018-01-01

    Osmanlı Devleti’nde ücret karşılığı geçici olarak geri hizmetlerde kullanılan askerlere cerehor adı verilmiştir. Cerehorlar genellikle kale tamiri, yol, köprü, gemi, tabya inşası, maden ocakları, bataklık temizleme, siper kazma, gemilerde kürek çekme gibi işlerde çalıştırılmışlardır. Bu arada devlete ait bazı işlerin yapılması durumunda cerehorluktan muaf olunabilmiştir. Rusçuk şehri Tuna Nehri kıyısında yer aldığından buradan temin edilen cerehorlar büyük ölçüde gemilerde kürek çekmişlerdir....

  11. Fractal dimension analysis for robust ultrasonic non-destructive evaluation (NDE) of coarse grained materials

    Science.gov (United States)

    Li, Minghui; Hayward, Gordon

    2018-04-01

    Over the recent decades, there has been a growing demand on reliable and robust non-destructive evaluation (NDE) of structures and components made from coarse grained materials such as alloys, stainless steels, carbon-reinforced composites and concrete; however, when inspected using ultrasound, the flaw echoes are usually contaminated by high-level, time-invariant, and correlated grain noise originating from the microstructure and grain boundaries, leading to pretty low signal-to-noise ratio (SNR) and the flaw information being obscured or completely hidden by the grain noise. In this paper, the fractal dimension analysis of the A-scan echoes is investigated as a measure of complexity of the time series to distinguish the echoes originating from the real defects and the grain noise, and then the normalized fractal dimension coefficients are applied to the amplitudes as the weighting factor to enhance the SNR and defect detection. Experiments on industrial samples of the mild steel and the stainless steel are conducted and the results confirm the great benefits of the method.

  12. Performance demonstration testing at the EPRI NDE center for intergranular stress corrosion cracking in BWR piping

    International Nuclear Information System (INIS)

    Pherigo, G.

    1986-01-01

    Intergranular stress corrosion cracking (IGSCC) has become a significant concern for the commercial electric utility industry during the past four years. As the IGSCC problem manifested itself, the Nuclear Regulatory Commission (NRC) responded by issuing Inspection and Enforcement (I and E) Bulletin 82-03 which required that ultrasonic inspection procedures be demonstrated on service- removed samples. The ability to reliably detect and discriminate IGSCC was recognized by the industry as a very difficult task, at best. Concurrent with the NRC bulletin, state-of-the-art yet practical techniques for the detection and discrimination of IGSCC had to be developed, demonstrated, and transferred to the field in a relatively short time. With the release of I and E Bulletin 83-02, procedures as well as personnel had to be qualified on service-removed samples. This paper reports how the EPRI Nondestructive Evaluation (NDE) Center developed the necessary technology and a formal training and qualification program to meet these needs on behalf of the industry

  13. NDE methods for determining the materials properties of silicon carbide plates

    Science.gov (United States)

    Kenderian, Shant; Kim, Yong; Johnson, Eric; Palusinski, Iwona A.

    2009-08-01

    Two types of SiC plates, differing in their manufacturing processes, were interrogated using a variety of NDE techniques. The task of evaluating the materials properties of these plates was a challenge due to their non-uniform thickness. Ultrasound was used to estimate the Young's Modulus and calculate the thickness profile and Poisson's Ratio of the plates. The Young's Modulus profile plots were consistent with the thickness profile plots, indicating that the technique was highly influenced by the non-uniform thickness of the plates. The Poisson's Ratio is calculated from the longitudinal and shear wave velocities. Because the thickness is cancelled out, the result is dependent only on the time of flight of the two wave modes, which can be measured accurately. X-Ray was used to determine if any density variations were present in the plates. None were detected suggesting that the varying time of flight of the acoustic wave is attributed only to variations in the elastic constants and thickness profiles of the plates. Eddy Current was used to plot the conductivity profile. Surprisingly, the conductivity profile of one type of plates varied over a wide range rarely seen in other materials. The other type revealed a uniform conductivity profile.

  14. An automated miniature robotic vehicle inspection system

    Energy Technology Data Exchange (ETDEWEB)

    Dobie, Gordon; Summan, Rahul; MacLeod, Charles; Pierce, Gareth; Galbraith, Walter [Centre for Ultrasonic Engineering, University of Strathclyde, 204 George Street, Glasgow, G1 1XW (United Kingdom)

    2014-02-18

    A novel, autonomous reconfigurable robotic inspection system for quantitative NDE mapping is presented. The system consists of a fleet of wireless (802.11g) miniature robotic vehicles, each approximately 175 × 125 × 85 mm with magnetic wheels that enable them to inspect industrial structures such as storage tanks, chimneys and large diameter pipe work. The robots carry one of a number of payloads including a two channel MFL sensor, a 5 MHz dry coupled UT thickness wheel probe and a machine vision camera that images the surface. The system creates an NDE map of the structure overlaying results onto a 3D model in real time. The authors provide an overview of the robot design, data fusion algorithms (positioning and NDE) and visualization software.

  15. An automated miniature robotic vehicle inspection system

    International Nuclear Information System (INIS)

    Dobie, Gordon; Summan, Rahul; MacLeod, Charles; Pierce, Gareth; Galbraith, Walter

    2014-01-01

    A novel, autonomous reconfigurable robotic inspection system for quantitative NDE mapping is presented. The system consists of a fleet of wireless (802.11g) miniature robotic vehicles, each approximately 175 × 125 × 85 mm with magnetic wheels that enable them to inspect industrial structures such as storage tanks, chimneys and large diameter pipe work. The robots carry one of a number of payloads including a two channel MFL sensor, a 5 MHz dry coupled UT thickness wheel probe and a machine vision camera that images the surface. The system creates an NDE map of the structure overlaying results onto a 3D model in real time. The authors provide an overview of the robot design, data fusion algorithms (positioning and NDE) and visualization software

  16. Evaluation of methods for leak detection in reactor primary systems and NDE of cast stainless steel

    International Nuclear Information System (INIS)

    Kupperman, D.S.; Claytor, T.N.; Prine, D.W.; Mathieson, T.A.

    1984-01-01

    Six cracks, including two field-induced IGSCC specimens and two thermal-fatigue cracks, have been installed in a laboratory acoustic leak detection facility. The IGSCC specimens produce stronger acoustic signals than the thermal-fatigue cracks at equivalent leak rates. Despite significant differences in crack geometry, the acoustic signals from the two IGSCC specimens, tested at the same leak rate, are virtually identical in the frequency range from 200 to 400 kHz. Thus, the quantitative correlations between the acoustic signals and leak rate in the 300 to 400 kHz band are very similar for the two IGSCC specimens. Also, acoustic background data have been acquired during a hot functional sensitivity of acoustic leak detection techniques. In addition, cross-correlation techniques have been successfully used in the laboratory to locate the source of an electronically simulated leak signal

  17. Development of an Advanced, Automatic, Ultrasonic NDE Imaging System via Adaptive Learning Network Signal Processing Techniques

    Science.gov (United States)

    1981-03-13

    UNCLASSIFIED SECURITY CLAS,:FtfC ’i OF TH*!’ AGC W~ct P- A* 7~9r1) 0. ABSTRACT (continued) onuing in concert with a sophisticated detector has...and New York, 1969. Whalen, M.F., L.J. O’Brien, and A.N. Mucciardi, "Application of Adaptive Learning Netowrks for the Characterization of Two

  18. Light Water Reactor Sustainability (LWRS) Program – Non-Destructive Evaluation (NDE) R&D Roadmap for Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants

    Energy Technology Data Exchange (ETDEWEB)

    Simmons, Kevin L.; Ramuhalli, Pradeep; Brenchley, David L.; Coble, Jamie B.; Hashemian, Hash; Konnik, Robert; Ray, Sheila

    2012-09-14

    The purpose of the non-destructive evaluation (NDE) R&D Roadmap for Cables is to support the Materials Aging and Degradation (MAaD) R&D pathway. The focus of the workshop was to identify the technical gaps in detecting aging cables and predicting their remaining life expectancy. The workshop was held in Knoxville, Tennessee, on July 30, 2012, at Analysis and Measurement Services Corporation (AMS) headquarters. The workshop was attended by 30 experts in materials, electrical engineering, U.S. Nuclear Regulatory Commission (NRC), U.S. Department of Energy (DOE) National Laboratories (Oak Ridge National Laboratory, Pacific Northwest National Laboratory, Argonne National Laboratory, and Idaho National Engineering Laboratory), NDE instrumentation development, universities, commercial NDE services and cable manufacturers, and Electric Power Research Institute (EPRI). The motivation for the R&D roadmap comes from the need to address the aging management of in-containment cables at nuclear power plants (NPPs).

  19. Early detection of critical material degradation by means of electromagnetic multi-parametric NDE

    Science.gov (United States)

    Szielasko, Klaus; Tschuncky, Ralf; Rabung, Madalina; Seiler, Georg; Altpeter, Iris; Dobmann, Gerd; Herrmann, Hans-Georg; Boller, Christian

    2014-02-01

    With an increasing number of power plants operated in excess of their original design service life an early recognition of critical material degradation in components will gain importance. Many years of reactor safety research allowed for the identification and development of electromagnetic NDE methods which detect precursors of imminent damage with high sensitivity, at elevated temperatures and in a radiation environment. Regarding low-alloy heat-resistant steel grade WB 36 (1.6368, 15NiCuMoNb5), effects of thermal and thermo-mechanical aging on mechanical-technological properties and several micromagnetic parameters have been thoroughly studied. In particular knowledge regarding the process of copper precipitation and its acceleration under thermo-mechanical load has been enhanced. Whilst the Cu-rich WB 36 steel is an excellent model material to study and understand aging effects related to neutron radiation without the challenge of handling radioactive specimens in a hot cell, actually neutron-irradiated reactor pressure vessel materials were investigated as well. The neutron fluence experienced and the resulting shift of the ductile-brittle transition temperature were determined electromagnetically, and it was shown that weld and base material can be distinguished from the cladded side of the RPV wall. Low-cycle fatigue of the austenitic stainless steel AISI 347 (1.4550, X6CrNiNb18-10) has been characterized with electromagnetic acoustic transducers (EMATs) at temperatures of up to 300 °C. Time-of-flight and amplitude of the transmitted ultrasound signal were evaluated against the number of load cycles applied and observed as an indication of the imminent material failure significantly earlier than monitoring stresses or strains.

  20. Early detection of critical material degradation by means of electromagnetic multi-parametric NDE

    Energy Technology Data Exchange (ETDEWEB)

    Szielasko, Klaus; Tschuncky, Ralf; Rabung, Madalina; Altpeter, Iris; Dobmann, Gerd [Fraunhofer Institute for Nondestructive Testing (IZFP), Campus E3 1, 66123 Saarbrücken (Germany); Seiler, Georg; Herrmann, Hans-Georg; Boller, Christian [Fraunhofer Institute for Nondestructive Testing (IZFP), Campus E3 1, 66123 Saarbrücken, Germany and Saarland University, Chair of NDT and Quality Assurance, Campus E3 1, 66123 Saarbrücken (Germany)

    2014-02-18

    With an increasing number of power plants operated in excess of their original design service life an early recognition of critical material degradation in components will gain importance. Many years of reactor safety research allowed for the identification and development of electromagnetic NDE methods which detect precursors of imminent damage with high sensitivity, at elevated temperatures and in a radiation environment. Regarding low-alloy heat-resistant steel grade WB 36 (1.6368, 15NiCuMoNb5), effects of thermal and thermo-mechanical aging on mechanical-technological properties and several micromagnetic parameters have been thoroughly studied. In particular knowledge regarding the process of copper precipitation and its acceleration under thermo-mechanical load has been enhanced. Whilst the Cu-rich WB 36 steel is an excellent model material to study and understand aging effects related to neutron radiation without the challenge of handling radioactive specimens in a hot cell, actually neutron-irradiated reactor pressure vessel materials were investigated as well. The neutron fluence experienced and the resulting shift of the ductile-brittle transition temperature were determined electromagnetically, and it was shown that weld and base material can be distinguished from the cladded side of the RPV wall. Low-cycle fatigue of the austenitic stainless steel AISI 347 (1.4550, X6CrNiNb18-10) has been characterized with electromagnetic acoustic transducers (EMATs) at temperatures of up to 300 °C. Time-of-flight and amplitude of the transmitted ultrasound signal were evaluated against the number of load cycles applied and observed as an indication of the imminent material failure significantly earlier than monitoring stresses or strains.

  1. Early detection of critical material degradation by means of electromagnetic multi-parametric NDE

    International Nuclear Information System (INIS)

    Szielasko, Klaus; Tschuncky, Ralf; Rabung, Madalina; Altpeter, Iris; Dobmann, Gerd; Seiler, Georg; Herrmann, Hans-Georg; Boller, Christian

    2014-01-01

    With an increasing number of power plants operated in excess of their original design service life an early recognition of critical material degradation in components will gain importance. Many years of reactor safety research allowed for the identification and development of electromagnetic NDE methods which detect precursors of imminent damage with high sensitivity, at elevated temperatures and in a radiation environment. Regarding low-alloy heat-resistant steel grade WB 36 (1.6368, 15NiCuMoNb5), effects of thermal and thermo-mechanical aging on mechanical-technological properties and several micromagnetic parameters have been thoroughly studied. In particular knowledge regarding the process of copper precipitation and its acceleration under thermo-mechanical load has been enhanced. Whilst the Cu-rich WB 36 steel is an excellent model material to study and understand aging effects related to neutron radiation without the challenge of handling radioactive specimens in a hot cell, actually neutron-irradiated reactor pressure vessel materials were investigated as well. The neutron fluence experienced and the resulting shift of the ductile-brittle transition temperature were determined electromagnetically, and it was shown that weld and base material can be distinguished from the cladded side of the RPV wall. Low-cycle fatigue of the austenitic stainless steel AISI 347 (1.4550, X6CrNiNb18-10) has been characterized with electromagnetic acoustic transducers (EMATs) at temperatures of up to 300 °C. Time-of-flight and amplitude of the transmitted ultrasound signal were evaluated against the number of load cycles applied and observed as an indication of the imminent material failure significantly earlier than monitoring stresses or strains

  2. 25 years of NDE in fabrication of zirconium alloy mill products and nuclear fuel in the Nuclear Fuel Complex

    International Nuclear Information System (INIS)

    Mistry, R.K.; Laxminarayana, B.; Srivastava, R.K.

    1996-01-01

    Failure of nuclear fuel is highly undesirable from both economic and operational aspects. Hence all the components require rigorous QC and inspection checks. NDT plays a major role in assuring the quality of the products both at final and intermediate stages. This paper gives an overall review of NDT methods employed in achieving the integrity of nuclear products. The NDE procedures followed in NFC are visual inspection, radiography, penetrant testing, eddy current testing, ultrasonic testing and helium leak testing. NFC's quality assurance programme is organised to achieve the desired objectives by carrying out in process and final inspection at all critical steps of fabrication. (author)

  3. A Destructive Validation of NDE Responses of Service-Induced PWSCC Found in North Anna 2 Control Rod Drive Nozzle 31

    International Nuclear Information System (INIS)

    Cumblidge, Stephen E.; Doctor, Steven R.; Schuster, George J.; Harris, Robert V.; Crawford, Susan L.; Seffens, Rob J.; Toloczko, Mychailo B.; Bruemmer, Stephen M.; Moyer, C.

    2009-01-01

    Studies conducted at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington focused on assessing the effectiveness of nondestructive examination (NDE) techniques for inspecting control rod drive mechanism (CRDM) nozzles and J-groove weldments. The primary objective of this work is to provide information to the United States Nuclear Regulatory Commission (NRC) on the effectiveness of NDE methods as related to the in-service inspection of CRDM nozzles and J-groove weldments, and to enhance the knowledge base of primary water stress corrosion cracking (PWSCC) through destructive characterization of the CRDM assemblies.

  4. Evaluation of creep-fatigue crack growth for large-scale FBR reactor vessel and NDE assessment

    Energy Technology Data Exchange (ETDEWEB)

    Joo, Young Sang; Kim, Jong Bum; Kim, Seok Hun; Yoo, Bong

    2001-03-01

    Creep fatigue crack growth contributes to the failure of FRB reactor vessels in high temperature condition. In the design stage of reactor vessel, crack growth evaluation is very important to ensure the structural safety and setup the in-service inspection strategy. In this study, creep-fatigue crack growth evaluation has been performed for the semi-elliptical surface cracks subjected to thermal loading. The thermal stress analysis of a large-scale FBR reactor vessel has been carried out for the load conditions. The distributions of axial, radial, hoop, and Von Mises stresses were obtained for the loading conditions. At the maximum point of the axial and hoop stress, the longitudinal and circumferential surface cracks (i.e. PTS crack, NDE short crack and shallow long crack) were postulated. Using the maximum and minimum values of stresses, the creep-fatigue crack growth of the proposed cracks was simulated. The crack growth rate of circumferential cracks becomes greater than that of longitudinal cracks. The total crack growth of the largest PTS crack is very small after 427 cycles. The structural integrity of a large-scale reactor can be maintained for the plant life. The crack depth growth of the shallow long crack is faster than that of the NDE short crack. In the ISI of the large-scale FBR reactor vessel, the ultrasonic inspection is beneficial to detect the shallow circumferential cracks.

  5. A PC-based expert system for nondestructive testing

    International Nuclear Information System (INIS)

    Shankar, R.; Williams, R.; Smith, C.; Selby, G.

    1991-01-01

    Rule-based decision logic which can emulate problem-solving expertise of humans is being explored for power plant nondestructive evaluation (NDE) applications. This paper describes an effort underway at the EPRI NDE Center to assist in the interpretation of NDE data acquired by automatic systems during ultrasonic weld examination of boiling-water reactors (BWRs). A personal computer (PC) -based expert system shell was used to encode rules and assemble knowledge to address the discrimination of intergranular stress corrosion cracking (IGSCC) from benign reflectors in the inspection of pipe-to-component welds. The rules attempt to factor in plant inspection history, ultrasonic examination data nd, if available, radiography testing data; a majority of them deal with specific ultrasonic signal temporal and spatial behavior during automatic scanning. The paper describes the efforts in the development of the expert system

  6. Tank Inspection NDE Results for Fiscal Year 2014, Waste Tanks 26, 27, 28 and 33

    Energy Technology Data Exchange (ETDEWEB)

    Elder, J. [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL); Vandekamp, R. [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)

    2014-09-29

    Ultrasonic nondestructive examinations (NDE) were performed on waste storage tanks 26, 27, 28 and 33 at the Savannah River Site as a part of the “In-Service Inspection (ISI) Program for High Level Waste Tanks.” No reportable conditions were identified during these inspections. The results indicate that the implemented corrosion control program continues to effectively mitigate corrosion in the SRS waste tanks. Ultrasonic inspection (UT) is used to detect general wall thinning, pitting and interface attack, as well as vertically oriented cracks through inspection of an 8.5 inch wide strip extending over the accessible height of the primary tank wall and accessible knuckle regions. Welds were also inspected in tanks 27, 28 and 33 with no reportable indications. In a Type III/IIIA primary tank, a complete vertical strip includes scans of five plates (including knuckles) so five “plate/strips” would be completed at each vertical strip location. In FY 2014, a combined total of 79 plate/strips were examined for thickness mapping and crack detection, equating to over 45,000 square inches of area inspected on the primary tank wall. Of the 79 plate/strips examined in FY 2014 all but three have average thicknesses that remain at or above the construction minimum thickness which is nominal thickness minus 0.010 inches. There were no service induced reportable thicknesses or cracking encountered. A total of 2 pits were documented in 2014 with the deepest being 0.032 inches deep. One pit was detected in Tank 27 and one in Tank 33. No pitting was identified in Tanks 26 or 28. The maximum depth of any pit encountered in FY 2014 is 5% of nominal thickness, which is less than the minimum reportable criteria of 25% through-wall for pitting. In Tank 26 two vertical strips were inspected, as required by the ISI Program, due to tank conditions being outside normal chemistry controls for more than 3 months. Tank 28 had an area of localized thinning on the exterior wall of the

  7. State Systems Change Spotlight: Nevada. Transforming State Systems to Improve Outcomes for Children with Disabilities

    Science.gov (United States)

    Ruedel, Kristin; Nelson, Gena; Bailey, Tessie; Pierce, Jennifer

    2018-01-01

    Data show that effective and ongoing communication and evaluation can have a positive impact on local and statewide systems change. Local and statewide systems change requires ongoing communication and evaluation. The Nevada Department of Education (NDE) used a communication protocol to support implementation of the Assess-Plan-Teach (APT) model.…

  8. Inspection of copper canisters for spent nuclear fuel by means of ultrasound. Ultrasonic imaging of EB weld, theory of harmonic imaging of welds, NDE of cast iron

    International Nuclear Information System (INIS)

    Stepinski, T.; Lingvall, F.; Ping Wu

    2001-07-01

    The objective of task presented in the first chapter, ultrasonic imaging of EB weld is to investigate imaging methods capable of improving ultrasonic imaging of defects in EB-welds. Algorithms based on ideas from ultrasonic tomography were examined as the first step. After a concise review of literature in the field of tomography the attention is focused on synthetic focusing and particularly on using linear phased array systems for imaging. Synthetic focusing is a technique where the focusing is performed by software after gathering the ultrasonic data. General principles of synthetic aperture focusing technique (SAFT) - a synthetic focusing technique especially suitable for linear ultrasonic arrays are presented. Problems related to the application of SAFT to ultrasonic transducers with large apertures are identified and the solution is proposed. It appears that when the probe becomes larger (i.e., cannot be regarded as a point source) the ultrasonic pulses that it generates will be smeared by its spatial impulse response (SIR). This impairs the spatial resolution achieved for the finite aperture probes comparing to the point source. Thus, a proper application of synthetic focusing requires taking into account the spatially varying probe's SIR. The SIR has to be calculated (measured) in the interesting points of space and than deconvoluted. A technique for deconvoluting the SIR based on Wiener filter is proposed and illustrated by experimental results. Some preliminary results from immersion testing of copper blocks using the ALLIN system in our lab facility are presented. Nonlinear propagation of plane waves in fluids based on the Burgers equation is investigated in the second chapter. The presented method is basically adopted from the existing literature although some modification has been made to adapt to our situation. The solution has been re-derived and two alternative forms feasible for computer calculation are given and some numerical results are

  9. Inspection of copper canisters for spent nuclear fuel by means of ultrasound. Ultrasonic imaging of EB weld, theory of harmonic imaging of welds, NDE of cast iron

    Energy Technology Data Exchange (ETDEWEB)

    Stepinski, T.; Lingvall, F.; Ping Wu [Uppsala Univ. (Sweden). Dept. of Materials Science

    2001-07-01

    The objective of task presented in the first chapter, ultrasonic imaging of EB weld is to investigate imaging methods capable of improving ultrasonic imaging of defects in EB-welds. Algorithms based on ideas from ultrasonic tomography were examined as the first step. After a concise review of literature in the field of tomography the attention is focused on synthetic focusing and particularly on using linear phased array systems for imaging. Synthetic focusing is a technique where the focusing is performed by software after gathering the ultrasonic data. General principles of synthetic aperture focusing technique (SAFT) - a synthetic focusing technique especially suitable for linear ultrasonic arrays are presented. Problems related to the application of SAFT to ultrasonic transducers with large apertures are identified and the solution is proposed. It appears that when the probe becomes larger (i.e., cannot be regarded as a point source) the ultrasonic pulses that it generates will be smeared by its spatial impulse response (SIR). This impairs the spatial resolution achieved for the finite aperture probes comparing to the point source. Thus, a proper application of synthetic focusing requires taking into account the spatially varying probe's SIR. The SIR has to be calculated (measured) in the interesting points of space and than deconvoluted. A technique for deconvoluting the SIR based on Wiener filter is proposed and illustrated by experimental results. Some preliminary results from immersion testing of copper blocks using the ALLIN system in our lab facility are presented. Nonlinear propagation of plane waves in fluids based on the Burgers equation is investigated in the second chapter. The presented method is basically adopted from the existing literature although some modification has been made to adapt to our situation. The solution has been re-derived and two alternative forms feasible for computer calculation are given and some numerical results are

  10. AMES, NESC and ENIQ: European networks in the field of structural integrity involving NDE and inspection effectiveness assessment

    International Nuclear Information System (INIS)

    Crutzen, S.; Hurst, R.; Debarberis, L.; Lemaitre, P.; Eriksen, B.

    1999-01-01

    Three European networks on structural integrity aspects of ageing nuclear components are presently managed by the Institute for Advanced Materials of the Joint Research Centre of the European Commission: AMES (Ageing Materials Evaluation and Studies), ENIQ (European Network for Inspection Qualification) and NESC (Network for Evaluating Steel Components). All three networks involve actions, which aim at the effectiveness and reliability assessment of NDE techniques and of inspection procedures: Either for materials damage detection and characterisation or for defect detection and evaluation. This paper is describing very generally the objectives of the three networks and is then concentrating on the results obtained in ENIQ, which are relevant with ISI and regulatory issues. (orig./DGE)

  11. Las aplicaciones interactivas multimedia en España: ¿hacia dónde evoluciona el mercado?

    Directory of Open Access Journals (Sweden)

    Lic. Nati Ramajo Hernández

    1998-01-01

    Full Text Available El despegue del sector multimedia en nuestro país (entendiendo como tal las aplicaciones interactivas multimedia ha sido espectacular en los últimos tiempos. El número de títulos publicados en CD-ROM, al igual que el número de productores, ha aumentado considerablemente. Pero, ¿cómo es esa nueva industria?, ¿qué productos ofrece?, ¿hacia dónde evoluciona el mercado? El presente trabajo pretende hacer un repaso a la breve historia de las aplicaciones interactivas multimedia en España hasta llegar al momento actual, analizando por el camino la tipología de los productos y concluyendo con los nuevos formatos que están cambiando el mercado.

  12. Robotic 3D SQUID imaging system for practical nondestructive evaluation applications

    International Nuclear Information System (INIS)

    Isawa, K.; Nakayama, S.; Ikeda, M.; Takagi, S.; Tosaka, S.; Kasai, N.

    2005-01-01

    A robotic three-dimensional (3D) scanning superconducting quantum interference device (SQUID) imaging system was developed for practical nondestructive evaluation (NDE) applications. The major feature of this SQUID-NDE system is that the SQUID sensor itself scans in 3D by traveling over the surface of an object during testing without the need for magnetic shielding. This imaging system consists of (i) DC-SQUID gradiometer for effective movement of the sensor, (ii) SQUID sensor manipulator utilizing an articulated-type robot used in industry, (iii) laser charge-coupled-device (CCD) displacement sensor to measure the 3D coordinates of points on the surface of the object, and (iv) computer-aided numerical interpolation scheme for 3D surface reconstruction of the object. The applicability of this system for NDE was demonstrated by successfully detecting artificial damage of cylindrical-shaped steel tubes

  13. NDE Conference on Civil Engineering : a joint conference of the 7th Structural Materials Technology Conference (SMT) and the 6th International Symposium on Nondestructive Testing in Civil Engineering (NDT-CE)

    Science.gov (United States)

    2007-01-01

    The 2006 NDE conference on Civil Engineering was held in St. Louis, MO on August 14 18, 2006. The conference combined the 7th Structural Materials Technology Conference (SMT) along with the 6th International Symposium on Nondestructive Testing in...

  14. KATMA DEĞER VERGİSİ’NDE VARIŞ ÜLKESİNDE VEYA MENŞE ÜLKESİNDE VERGİLENDİRME VE İHRACAT İSTİSNASI

    Directory of Open Access Journals (Sweden)

    FATİH SARAÇOĞLU

    2013-06-01

    Full Text Available Value added tax is a tax that is based on consumption. It is an  important concept in international trade for taxation and harmonization. It comes first in destination principle and origin principle. European Union decided to pass the system of taxation in origin principle since January 1st, 1997. Still taxation is valid in destination principle. In order to activate taxation in destination principle, goods and services must be based on tax only in the country where it is used. Thus, in this study we examine exportation exemption too.

  15. Study of data I/O performance on distributed disk system in mask data preparation

    Science.gov (United States)

    Ohara, Shuichiro; Odaira, Hiroyuki; Chikanaga, Tomoyuki; Hamaji, Masakazu; Yoshioka, Yasuharu

    2010-09-01

    Data volume is getting larger every day in Mask Data Preparation (MDP). In the meantime, faster data handling is always required. MDP flow typically introduces Distributed Processing (DP) system to realize the demand because using hundreds of CPU is a reasonable solution. However, even if the number of CPU were increased, the throughput might be saturated because hard disk I/O and network speeds could be bottlenecks. So, MDP needs to invest a lot of money to not only hundreds of CPU but also storage and a network device which make the throughput faster. NCS would like to introduce new distributed processing system which is called "NDE". NDE could be a distributed disk system which makes the throughput faster without investing a lot of money because it is designed to use multiple conventional hard drives appropriately over network. NCS studies I/O performance with OASIS® data format on NDE which contributes to realize the high throughput in this paper.

  16. Välismaalaste seaduses sätestatud töö- ja ettevõtlusrände regulatsiooni väärkasutamine Eestis ja äriseadustiku muudatuste mõju töö- ja ettevõtlusrände regulatsiooni väärkasutamisele : [magistritöö] / Laura Sofia Annus ; Tartu Üliko

    Index Scriptorium Estoniae

    Annus, Laura Sofia

    2012-01-01

    Välismaalase mõistest ja tähtajalise elamisloa regulatsioonist, ettevõtte asutamise regulatsioonist, töö- ja ettevõtlusrände regulatsiooni mitte-eesmärgipärasest kasutamisest ja lahendustest selle peatamiseks

  17. Üniversitelerde Hizmet Kalitesinin Servqual Analizi İle Ölçülmesi: Celal Bayar Üniversite’nde Bir Uygulama

    OpenAIRE

    GERŞİL, Mustafa; GÜVEN, Hüseyin

    2018-01-01

    Üniversiteler eğitim sistemiüzerinde stratejik öneme sahiptir. Hizmet kalitesini iyileştirme vegeliştirmenin ilk aşaması, hizmet kalitesinin ölçümüdür. Örgütler, sunmuşoldukları hizmetin kalitesi hakkında ne kadar fazla doğru ve güvenilirbilgilere sahip olursa, kalitenin daha yüksek düzeylere çıkarılması noktasındadaha etkin olabilirler. Bu çalışma, Celal Bayar Üniversitesi'nde hizmet kalitesininölçümünde SERVQUAL yöntemini kullanarak, öğrencilerin beklentilerini vealgılarını beş boyutta...

  18. Marktkonstitution und Regulierung der unabhängigen Film- und Fernsehproduktion : Staat, Verbände und Gewerkschaften im deutsch-britischen Vergleich

    OpenAIRE

    Elbing, Sabine; Voelzkow, Helmut

    2006-01-01

    "In einem internationalen Vergleich von Deutschland und Großbritannien wird untersucht, welche Beiträge die staatliche Politik und die Wirtschafts- und Sozialpartner (Wirtschafts- und Arbeitgeberverbände sowie Gewerkschaften) zur Förderung der unabhängigen Film- und Fernsehproduktion leisten. Es wird gezeigt, dass die britische Medienpolitik die Position der unabhängigen Film- und Fernsehproduktion gegenüber den Fernsehsendern gestärkt hat. In Deutschland hat die Medienpolitik darauf verzicht...

  19. BİLGİ YÖNETİMİNDE BİLGİ DÖNÜŞTÜRME VE SECI MODELİ : HİZMET SEKTÖRÜNDE BİR ALAN ARAŞTIRMASI

    OpenAIRE

    Zaim, Halil; Seçgin, Gökhan

    2012-01-01

    Bu çalışmanın temel amacı, bir bilgi dönüştürme modeli olan SECI Modelinin açıklanması ve modeli oluşturan dört alt boyutun bilgi yönetimi performansı üzerindeki etkisini ortaya koymaktır. Bu çalışma kapsamında gerçekleştirilen araştırma, hizmet sektöründe faaliyet gösteren sekiz farklı firmada çalışanlar arasından seçilen örneklem ile gerçekleştirilmiştir. Bu araştırma kapsamında SECI Modeli'nin alt boyutlarını ve çalışanların bilgi yönetimi performans algılarını ölçen iki fark...

  20. SAKARYA İLİNDE 17 AGUSTOS 1999 DEPREMiNDE HASAR GÖREN Y APlLAR ÜZERİNE BİR ARAŞTIRMA

    Directory of Open Access Journals (Sweden)

    Fatih İLÇİ

    2003-08-01

    Full Text Available Doğal afetler aras ı nda , yapılara en büyük zararı depremler venniş ti r. Bunun için, her an deprem olacakmış gibi h az ı r olun ınalıdır. Ya p ı yapma fikri( daha y e ni ohışına aşan1asında i ken , inşaat sektörü ile ilgili tünı meslek grupları s ürekli bir ko o rd in asy on n ç i nde çalışnıalıdır. Bu ko ordi ne l i çalışnıa neticesinde; 17 Ağustos 1999 d epremini n türrı ol ums uz sonuçlan iyi bir şekilde anl aşılıp, dcpreme karşı nas ı l dayanıklı yapı yapabili rim. Fikri benimsenmelidir.

  1. Modelling NDE pulse-echo inspection of misorientated planar rough defects using an elastic finite element method

    Energy Technology Data Exchange (ETDEWEB)

    Pettit, J. R.; Lowe, M. J. S. [UK Research Centre for NDE, Imperial College London, Exhibition Road, London, SW7 2AZ (United Kingdom); Walker, A. E. [Rolls-Royce Nuclear, PO BOX 2000, Derby, DE21 7XX (United Kingdom)

    2015-03-31

    Pulse-echo ultrasonic NDE examination of large pressure vessel forgings is a design and construction code requirement in the power generation industry. Such inspections aim to size and characterise potential defects that may have formed during the forging process. Typically these defects have a range of orientations and surface roughnesses which can greatly affect ultrasonic wave scattering behaviour. Ultrasonic modelling techniques can provide insight into defect response and therefore aid in characterisation. However, analytical approaches to solving these scattering problems can become inaccurate, especially when applied to increasingly complex defect geometries. To overcome these limitations a elastic Finite Element (FE) method has been developed to simulate pulse-echo inspections of embedded planar defects. The FE model comprises a significantly reduced spatial domain allowing for a Monte-Carlo based approach to consider multiple realisations of defect orientation and surface roughness. The results confirm that defects aligned perpendicular to the path of beam propagation attenuate ultrasonic signals according to the level of surface roughness. However, for defects orientated away from this plane, surface roughness can increase the magnitude of the scattered component propagating back along the path of the incident beam. This study therefore highlights instances where defect roughness increases the magnitude of ultrasonic scattered signals, as opposed to attenuation which is more often assumed.

  2. Application of advanced surface and volumetric NDE methods to the detection of cracks in critical regions of turbine blades

    International Nuclear Information System (INIS)

    Porter, J.P.

    1990-01-01

    Advanced NDE inspection techniques capable of detecting small, yet potentially dangerous cracks in turbine blade tenons, blade tie-wire through-holes, trailing edges, and blade root attachment ends have been devised and developed and are now being applied successfully in the field replacing conventional, less-sensitive methods commonly used for crack detection in these blade elements. Under-shroud lateral cracks in tenons are detected ultrasonically by highangle refracted pulse-echo shear wave and 0-degree pitch-catch longitudinal wave methods. Trailing-edge blade cracks and surface-connected cracks in root attachment ends are detected by high frequency eddy current techniques, typically applied remotely using ports in the turbine housing to gain access to the parts under inspection. Cracks emanating from tie-wire holes in blade upper ends are detected by eddy current inspection, which has been found to be a far more effective methods than either magnetic particle or ultrasonic testing for this application. Root attachment ends of side entry blades are inspected volumetrically by ultrasonics, using proprietary coupling techniques that allow examination of heretofore uninspectable regions of blade attachment hooks, known regions of crack initiation. Techniques developed for this collection of applications are described, and the results of actual field inspections are presented and discussed

  3. Durability Analysis and Experimental Validation of Environmental Barrier Coating (EBC Performance Using Combined Digital Image Correlation and NDE

    Directory of Open Access Journals (Sweden)

    Ali Abdul-Aziz

    2016-12-01

    Full Text Available To understand the failure mechanism or to predict the spallation life of environmental barrier coatings (EBC on fiber reinforced ceramic matrix composites, the fracture strength of EBC and the process of the crack growth in EBC layers need to be experimentally determined under standard or simulated engine operating conditions. The current work considers a multi layered barium strontium aluminum silicate (BSAS-based EBC-coated, melt infiltrated silicon carbide fiber reinforced silicon carbide matrix composite (MI SiC/SiC specimen that was tensile tested at room temperature. Numerous tests were performed under tensile loading conditions, and the specimen was loaded until failure under pre-determined stress levels. The specimen was examined with optical microscopy, scanning electron microscopy (SEM, computed tomography (CT scan, and digital image correlation (DIC camera. Observation from the computed tomography scanning, the SEM, and the optical microscopy did not offer conclusive information concerning the cracks that spawned during the tests. However, inspection with the DIC camera offered some indication that cracks had developed and allowed their detection and the location of their initiation site. Thus, this study provides detailed discussion of the results obtained from the experimental investigation and the nondestructive evaluation (NDE, and it also includes assessment of the stress response predicted by analytical modeling and their impact on EBC durability and crack growth formation under complex loading settings.

  4. Development of NDE Technique with Induction Heating and Thermography on Conductive Composite Materials

    National Research Council Canada - National Science Library

    Shepard, Steven M; Lhota, James R; Ahmed, Tasdiq; Kim, HeeJune; Yarlagadda, Shridhar

    2004-01-01

    .... Our expectation at the outset of the projects was that the combination of induction heating and thermography would outperform systems based exclusively on either electromagnetic induction or thermography...

  5. An Improved NDE (Non-Destructive Evaluation) Capability for Aerospace Components.

    Science.gov (United States)

    1984-12-21

    APPLICATION STUDIES ................................. . ............ . 24 4.1 UGT Samples ..................................................... 24 4.2... UGT samples and solder connections in chip-carrier vias should be addressable with a first generation tomoscope. Detection of shield/dielectric voids...systems, making this the only choice currently open. Spatial resolution, while in theory not intrinsically as good as the translate- rotate system, is

  6. Täter- und Opfergeschichten. Schuld in Alois Hotschnigs Prosawerken «Aus», «Leonardos Hände» und «Ludwigs Zimmer»

    Directory of Open Access Journals (Sweden)

    Friederike Gösweiner

    2014-05-01

    Full Text Available The assumption this article is based on is that guilt is perhaps the most important theme in Alois Hotschnig’s writing. This article therefore aims at analyzing Hotschnig’s focus on the theme of guilt in his novels. Three examples of Hotschnig’s prose work serve as case studies: his debut Aus, and the two novels Leonardos Hände, and Ludwigs Zimmer. Since guilt seems to be a very important topic in the Austrian literary tradition, this article also tries to establish whether and how Hotschnig takes up this grand Austrian tradition of writing about guilt.

  7. Frequency Domain Reflectometry NDE for Aging Cables in Nuclear Power Plants

    Energy Technology Data Exchange (ETDEWEB)

    Glass, Samuel W.; Jones, Anthony M.; Fifield, Leonard S.; Hartman, Trenton S.

    2017-02-16

    Cable insulation polymers are among the more susceptible materials to age-related degradation within a nuclear power plant. This is recognized by both regulators and utilities, so all plants have developed cable aging management programs to detect damage before critical component failure in compliance with regulatory guidelines. Although a wide range of tools are available to evaluate cables and cable systems, cable aging management programs vary in how condition monitoring and nondestructive examinations are conducted as utilities search for the most reliable and cost-effective ways to assess cable system condition. Frequency domain reflectometry (FDR) is emerging as one valuable tool to locate and assess damaged portions of a cable system with minimal cost and only requires access in most cases to one of the cable terminal ends. Since laboratory studies to evaluate the use of FDR for inspection of aged cables can be expensive and data interpretation may be confounded by multiple factors which influence results, a model-based approach is desired to parametrically investigate the effect of insulation material damage in a controlled manner. This work describes development of a physics-based FDR model which uses finite element simulations of cable segments in conjunction with cascaded circuit element simulations to efficiently study a cable system. One or more segments of the cable system model have altered physical or electrical properties which represent the degree of damage and the location of the damage in the system. This circuit model is then subjected to a simulated FDR examination. The modeling approach is verified using several experimental cases and by comparing it to a commercial simulator suitable for simulation of some cable configurations. The model is used to examine a broad range of parameters including defect length, defect profile, degree of degradation, number and location of defects, FDR bandwidth, and addition of impedance-matched extensions to

  8. Lightweight submersed 'Walking' NDE manipulators for PWR and BWR vessel weld inspection

    International Nuclear Information System (INIS)

    Saernmark, Ivan; Lenz, Herbert

    2008-01-01

    Three new manipulators developed by WesDyne TRC in Sweden have under the year 2007 performed three very successful inspections in the PWR reactor Ringhals 3 and the BWR reactors Ringhals 1 and Oskarshamn 1. The manipulator systems can be used to perform inspection of circumferential and vertical welds on the reactor pressure vessel, the core shroud, core shroud support in BWR reactors or vessel and core barrel welds in PWR reactors. Most other flat or curved surfaces can be inspected using the new concept through relatively simple mechanical reconfigurations of system modules. The first inspection was performed on the R3 PWR core barrel in June 2007 with a very good result. This Manipulator is designed for access in very narrow gaps and for the type of core barrels with a shield covering the whole area of the perimeter. The manipulator is attached to the inspection area by means of a new unique suction cup system. The current manipulators consist of a curved horizontal beam, with radius similar to the reactor vessel, and a straight vertical beam, forming a T-shaped structure. By alternating the application of suction cup pairs on the horizontal beam and the vertical beam and by driving the scanning motors, the manipulator performs an incremental translational movement upwards/downwards or from side to side. The principles of this system give a well defined and stable platform for global and local positioning accuracy. A combination of advanced sensor solutions provides accurate position information in the absence of other physical reference objects. The system is controlled by the new WesDyne TRC Motor Control Panel and software, the MCP is specifically designed for remote control of submersed manipulators using techniques for cable reduction

  9. Lightweight submersed 'Walking' NDE manipulators for PWR and BWR vessel weld inspection

    Energy Technology Data Exchange (ETDEWEB)

    Saernmark, Ivan; Lenz, Herbert [WesDyne TRC AB, Stockholm (Sweden)

    2008-04-15

    Three new manipulators developed by WesDyne TRC in Sweden have under the year 2007 performed three very successful inspections in the PWR reactor Ringhals 3 and the BWR reactors Ringhals 1 and Oskarshamn 1. The manipulator systems can be used to perform inspection of circumferential and vertical welds on the reactor pressure vessel, the core shroud, core shroud support in BWR reactors or vessel and core barrel welds in PWR reactors. Most other flat or curved surfaces can be inspected using the new concept through relatively simple mechanical reconfigurations of system modules. The first inspection was performed on the R3 PWR core barrel in June 2007 with a very good result. This Manipulator is designed for access in very narrow gaps and for the type of core barrels with a shield covering the whole area of the perimeter. The manipulator is attached to the inspection area by means of a new unique suction cup system. The current manipulators consist of a curved horizontal beam, with radius similar to the reactor vessel, and a straight vertical beam, forming a T-shaped structure. By alternating the application of suction cup pairs on the horizontal beam and the vertical beam and by driving the scanning motors, the manipulator performs an incremental translational movement upwards/downwards or from side to side. The principles of this system give a well defined and stable platform for global and local positioning accuracy. A combination of advanced sensor solutions provides accurate position information in the absence of other physical reference objects. The system is controlled by the new WesDyne TRC Motor Control Panel and software, the MCP is specifically designed for remote control of submersed manipulators using techniques for cable reduction.

  10. Magnetic-based NDE of steel in prestressed and post-tensioned concrete bridges

    Science.gov (United States)

    Ghorbanpoor, Al

    1998-03-01

    This paper addresses a study, funded by the Federal Highway Administration (FHWA), the U.S. Department of Transportation (DOT), that is currently underway at the University of Wisconsin-Milwaukee. The objective of the study is to develop an automated non-destructive testing system based on the magnetic flux leakage principle that would allow assessment of the condition of reinforcing and prestressing steels in concrete bridge components. Corrosion or cracking of steel within concrete members will be detected and evaluated. The system will be used as a self clamping and moving sensing device that can be installed on a concrete girder. Data from the sensing device is transmitted via a wireless communication system to data recording/analysis equipment on the ground. The sensing device may also be operated manually to allow inspection of local areas such as the end bearing or cable anchorage locations in cable bridges. Through performing a correlation analysis of recorded data, an assessment of the condition of the member under test is made. Reference data base for the correlation analysis is established through laboratory and field testing with known conditions.

  11. BELIEFS AND PRACTICES OF QASHQAI TURKS WITHIN THE CIRCLE OF BIRTH KAŞKAY TÜRKLERİNDE DOĞUM ÇEVRESİNDE GELİŞEN İNANÇ VE PRATİKLER

    Directory of Open Access Journals (Sweden)

    Mehmet KARAASLAN

    2011-09-01

    Full Text Available In this study, which deals with the birth traditions of The Qashqai, and beliefs and practices in this aspect, the data gained through approximately two-month studies in the field of Iran are used. During the field of study, based on the use of techniques such as participated observation and question and answer, Qashqai people, both have urban live and haven’t plucked their ties with nomadism in appropriately with their current social tissues, have been discussed with. These rituals and beliefs formed within the frame of birth are examined through the perspectives such as their functions, whether they have an equivalent in the ancient Turkish culture or not and their comparison of aspects similar to the other communities of the world of the Turks. Kaşkayların doğum gelenekleri ve bu çerçevedeki inanç ve pratiklerinin ele alındığı bu çalışmada İran sahasında yaklaşık iki ay süresince yapılmış olan saha çalışmasında elde edilen veriler kullanılmıştır. Katılımlı gözlem ve soru cevap gibi tekniklerin kullanılması sureti ile yapılan saha çalışması sırasında Kaşkayların şu anki sosyal dokusuna uygun olarak hem uzun süredir şehir hayatı yaşayan hem göçerlikle bağlantılarını tam olarak koparmamış Kaşkaylarla görüşülmüştür. Doğum çevresinde teşekkül etmiş bu ritüel ve inançlar; işlevleri, kadim Türk kültüründe bir karşılıklarının olup olmadığı ve Türk dünyasının diğer toplulukları ile benzeyen yönlerinin mukayesesi gibi bakış açılarıyla irdelenmiştir.

  12. NDE of stainless steel and on-line leak monitoring of LWRs

    International Nuclear Information System (INIS)

    Kupperman, D.S.; Claytor, T.N.; Mathieson, T.; Prine, D.W.

    1985-10-01

    The GARD/ANL acoustic leak detection system is under evaluation in the laboratory. Results of laboratory tests with simulated acoustic leak signals and acoustic signals from field-induced intergranular stress corrosion cracks (IGSCCs) indicate that cross-correlation techniques can be used to locate the position of a leak. Leaks from a 2-in. ball valve and a flange were studied and compared with leaks from IGSCCs and fatigue cracks. The dependence of acoustic signal on flow rate and frequency for the valve and the flange was comparable to that of fatigue cracks (thermal and mechanical) and different from that of IGSCCs. Two pipe-to-endcap weldments with overlays were examined. Because the amount of cracking in the specimens was limited, the emphasis was on trying understand the nature of crack overcalling. Four 60-mm-thick cast stainless steel plates with microstructures ranging from equiaxed to primarily columnar grains have been examined with ultrasonic waves. 13 refs., 23 figs

  13. NDE methodologies for characterisation of defects, stresses and microstructures in pressure vessels and pipes

    International Nuclear Information System (INIS)

    Raj, Baldev; Jayakumar, T.

    1997-01-01

    In this paper, the experience of the authors on high sensitive detection of defects by ultrasonic testing using advanced signal analysis and pattern recognition methodologies in the case of austenitic stainless steel and thin walled Zircaloy-2 weldments; residual stresses measurements and evaluation and adequacy of post-weld heat treatment of simulated tube to tube sheet weld joints of the steam generators of the prototype fast breeder reactor and evaluation of ASME repair welding procedures from the residual stress point of view in the case of 9Cr-1Mo steel; and assessment of microstructural degradation in 9Cr-1Mo steel, creep damage in 0.5Cr-0.5Mo-0.25V steel and detection of marteniste in AISI 304 type stainless steel is discussed. The development of expert systems for giving advice on optimum procedures for non-destructive testing and evaluation is also discussed. (author)

  14. SANAYİ DÖNEMİ SÜRECİNDE FRANSA’DA DİN ANLAYIŞI

    Directory of Open Access Journals (Sweden)

    Rasim BAYRAKTAR

    2013-07-01

    Full Text Available SANAYİ DÖNEMİ SÜRECİNDE FRANSA’DA DİN ANLAYIŞIÖzet: Çalışmamızda, 18. yüzyıl Fransa’sında sanayileşme ile meydana gelen reformcu düşüncelerin gelişim yönü incelenmiştir. Zira Bilimsel bulguların bir sonucu olan sanayileşmenin yaygın ve etkin gücü, “Sanayi Devrimi” ile kendini göstermiştir. Temelde, makinenin insan hayatına girmesi olarak değerlendirilen Sanayi Devrimi, insanoğlunun artan bilimsel bulgularıyla, evreni mümkün olduğunca eksiksiz ve daha iyi kavrama girişimlerinde bulunmasıyla başlamıştır. Bu dönemin asıl sorunu, eski feodal kurumların(Kilise-Aristokrasi-Burjuvazi dinsel ve geleneksel dogmalarından ödün vermemeleri ve her konuyu tartışılır duruma getirmeleri olmuştur. Bu nedenle biz de, Fransa’da etkili olan filozoflardan Voltaire, J.J. Rousseau, Montesguieu, b’Holbach ve Diderot’ün görüşlerinden hareketle sanayi dönemi Fransa halkının nasıl bir düşünce ve inanç yapısına sahip olduğunu ortaya koymaya çalıştık.RELIGIONAL PERCEPTION IN FRANCE IN THE PROCESS OF INDUSTRY PERIODAbstract: In this study, it was examined that the development of reformist ideas occurred via industrialization in France of 18th century. Widespread and effective power of industrialization which a consequence of scientific findings had shown itself with ‘’industry revolution’’.Basicly industry revolution had been mentioned as machine joined into human living. This revolution started with the growing scientific findings and enterprises of human being for better understanding of the universe. The main problem of that period was that old-fashioned feodal associations (church-aristocracy-bourgeoisie used not to compensate from their both religious and conventional dogmas and they brought out every subject to discussable condition. So, we tried to explain how the idea and faith condition of french nation of industry period were and we benefited from the opinions of Voltaire

  15. Vietnam Turizm Sektöründe Reklam Stratejilerinin Bulanık Kural Tabanlı Analizi

    Directory of Open Access Journals (Sweden)

    Nguyen Quang VINH

    2015-04-01

    Full Text Available Bu çalışma, turizm sektöründe reklam stratejilerinin verimliliği analiz etmeyi amaçlamaktadır. Reklamcılık faaliyetleri, turistik yerlerin özellikleri ile bu yerlerin imajı, reklam verimliliğini etkileyen dinamikler olarak karşımıza çıkmaktadır. Çalışmada yöntem olarak reklam stratejilerinin verimliliğini hesaplamada bulanık küme teorisi ve analitik hiyerarşi süreci kullanılmıştır. Buna ek olarak ortaya çıkan sonuçları teyit etmek amacıyla da SPSS yardımıyla istatistiksel analizler yapılmıştır. Çalışmadan elde edilen bulgular, reklam stratejilerinin verimliliğine ilişkin devletin yürütmüş olduğu çalışmaların birinci dereceden önemli olduğunu ortaya koymuştur. Bunun yanında çalışmanın bulgularına göre müşteri memnuniyeti ve uzun dönemli stratejiler açısından turistik yerlerde sağlanan hizmetlerin o bölgenin altyapı ve fiziki şartlarından çok daha önemli olduğunu ortaya çıkarmıştır. Son olarak ise turizm bölgesinin imajıyla ilgili olarak öncelikle turistlere verilen değer, akabinde de müşteri memnuniyeti ve turistlerin bölgeye olan sadakati, uzmanlar tarafından ön plana çıkarılmaktadır.

  16. Hybrid digital signal processing and neural networks for automated diagnostics using NDE methods

    International Nuclear Information System (INIS)

    Upadhyaya, B.R.; Yan, W.

    1993-11-01

    The primary purpose of the current research was to develop an integrated approach by combining information compression methods and artificial neural networks for the monitoring of plant components using nondestructive examination data. Specifically, data from eddy current inspection of heat exchanger tubing were utilized to evaluate this technology. The focus of the research was to develop and test various data compression methods (for eddy current data) and the performance of different neural network paradigms for defect classification and defect parameter estimation. Feedforward, fully-connected neural networks, that use the back-propagation algorithm for network training, were implemented for defect classification and defect parameter estimation using a modular network architecture. A large eddy current tube inspection database was acquired from the Metals and Ceramics Division of ORNL. These data were used to study the performance of artificial neural networks for defect type classification and for estimating defect parameters. A PC-based data preprocessing and display program was also developed as part of an expert system for data management and decision making. The results of the analysis showed that for effective (low-error) defect classification and estimation of parameters, it is necessary to identify proper feature vectors using different data representation methods. The integration of data compression and artificial neural networks for information processing was established as an effective technique for automation of diagnostics using nondestructive examination methods

  17. Shuttle Wing Leading Edge Root Cause NDE Team Findings and Implementation of Quantitative Flash Infrared Thermography

    Science.gov (United States)

    Burke, Eric R.

    2009-01-01

    Comparison metrics can be established to reliably and repeatedly establish the health of the joggle region of the Orbiter Wing Leading Edge reinforced carbon carbon (RCC) panels. Using these metrics can greatly reduced the man hours needed to perform, wing leading edge scanning for service induced damage. These time savings have allowed for more thorough inspections to be preformed in the necessary areas with out affecting orbiter flow schedule. Using specialized local inspections allows for a larger margin of safety by allowing for more complete characterizations of panel defects. The presence of the t-seal during thermographic inspection can have adverse masking affects on ability properly characterize defects that exist in the joggle region of the RCC panels. This masking affect dictates the final specialized inspection should be preformed with the t-seal removed. Removal of the t-seal and use of the higher magnification optics has lead to the most effective and repeatable inspection method for characterizing and tracking defects in the wing leading edge. Through this study some inadequacies in the main health monitoring system for the orbiter wing leading edge have been identified and corrected. The use of metrics and local specialized inspection have lead to a greatly increased reliability and repeatable inspection of the shuttle wing leading edge.

  18. AMERİKA BİRLEŞİK DEVLETLERİ’NDE DEVLETİN YENİDEN YAPILANDIRILMASINA YÖNELİK UYGULAMALAR (Clinton-Al Gore Girişimi: 1993-2001)

    OpenAIRE

    Aktan, Coşkun Can

    2018-01-01

    ABD’nde devletin yeniden yapılandırılması çalışmaları William Clinton’un başkanlığı döneminde Başkan Yardımcılığı görevini yürüten Al Gore öncülüğünde yürütülmüştür. ABD’nde bu amaçla National Performance Review adlı bir de yeniden yapılandırma laboratuvarı kurulmuştur. Bu kurum daha sonra National Partnership for Reinventing Government adını almıştır. Bu çalışmada 1993-2001 yılları arasında ABD’nde devletin yeniden yapılandırılmasına yönelik uygulamalar incelenmektedir....

  19. Detection and classification of defects in ultrasonic NDE signals using time-frequency representations

    Science.gov (United States)

    Qidwai, Uvais; Costa, Antonio H.; Chen, C. H.

    2000-05-01

    The ultrasonic wave, generated by a piezoelectric transducer coupled to the test specimen, propagates through the material and part of its energy is reflected when it encounters an non-homogeneity or discontinuity in its path, while the remainder is reflected by the back surface of the test specimen. Defect echo signals are masked by the characteristics of the measuring instruments, the propagation paths taken by the ultrasonic wave, and are corrupted by additive noise. This leads to difficulties in comparing and analyzing signals, particularly in automated defect identification systems employing different transducers. Further, the multi-component nature of material defects can add to the complexity of the defect identification criteria. With many one-dimensional (1-D) approaches, the multi-component defects can not be detected. Another drawback is that these techniques are not very robust for sharp ultrasonic peaks especially in a very hazardous environment. This paper proposes a technique based on the time-frequency representations (TFRs) of the real defect signals corresponding to artificially produced defects of various geometries in metals. Cohen's class (quadratic) TFRs with Gaussian kernels are then used to represent the signals in the time-frequency (TF) plane. Once the TFR is obtained, various image processing morphological techniques are applied to the TFR (e.g. region of interest masking, edge detection, and profile separation). Based on the results of these operations, a binary image is produced which, in turn, leads to a novel set of features. Using these new features, defects have not only been detected but also classified as flat-cut, angular-cut, and circular-drills. Moreover, with some modifications of the threshold levels of the TFR kernel design, our technique can be used in relatively hostile environments with SNRs as low as 0 dB. Another important characteristic of our approach is the detection of multiple defects. This consists of detection of

  20. DERVISH QUALIFACITIONS IN RELATION TO HAJI BEKTASH VELÎ WORKS AND BEKTASHI RULES HACI BEKTAŞ VELİ’NİN ESERLERİNDE VE BEKTAŞÎ ERKÂNNÂMELERİNDE DERVİŞİN NİTELİKLERİ

    Directory of Open Access Journals (Sweden)

    Hüseyin ÖZCAN

    2012-01-01

    ş özelinde insandan beklenen tavır ve davranışlar tespit edilmeye çalışılacaktır. Bu bağlamda yeni bir kaynak olan Hacı Bektaş Velî’nin İngiltere’de tarafımızdan bulunan kayıp kitabı Hadis-i Erbaîn Şerhi’nde dervişin özellikleri ile ilgili seçilmiş hadisler ele alınacaktır. Sonuçta, Hacı Bektaş Velî’nin derviş algısı ve Bektaşî erkânnâmelerinde yer alan dervişin niteliklerine yer verilerek sûfîlik yoluyla eğitimini tamamlayacak ideal insan tipolojisi üzerine tespit ve değerlendirmeler yapılacaktır.

  1. NDE in biomedical engineering

    International Nuclear Information System (INIS)

    Bhagwat, Aditya; Kumar, Pradeep

    2015-01-01

    Biomedical Engineering (BME) is an interdisciplinary field, marking the conjunction of Medical and Engineering disciplines. It combines the design and problem solving skills of engineering with medical and biological sciences to advance health care treatment, including diagnosis, monitoring, and therapy

  2. II. ABDÜLHAMİD DÖNEMİNDE İLKÖĞRETİM OKULLARINDAKİ DERS KİTAPLARI ve TARİH ÖĞRETİMİ

    Directory of Open Access Journals (Sweden)

    Arzu M. Nurdoğan

    2014-10-01

    Full Text Available Central government is in a position that the transformation of the overall education system, curriculum and educational methods, both the format and contents of the course books studied by students had to be changed as part of the Western style reform movement during the period of Sultan Abdulhamid the Second. One could hardly expect that the course books written in line with the mentality shaped up since Tanzimat period to accommodate the content and style that is indifferent to the general education mentality based on political-militaryeconomic pragmatism principles in keeping with the period in question. In this respect the main issue of the study is to identify the ways in which the political economic goals are reflected in the course books of the period where such goals were primarily based on the strengthening of the patrimonial state mentality through the promotion of a sense of patriotism and the * Söz konusu çalışma, 25-27 Haziran 2014 tarihleri arasında Sakarya Üniversitesi’nde gerçekleştirilen Uluslararası Tarih Eğitimi Sempozyumu’nda sunulan bildirinin genişletilmiş halidir. ** Doç. Dr., Marmara Üniversitesi, Atatürk Eğitim Fakültesi, İlköğretim Bölümü. E-posta: arzu.nurdogan@marmara.edu.tr development of industrial/agricultural economy through raising productive individuals. Considering the strong connection between the educational institutions and society, and politics and culture, the main goal of the present study is to establish how the political regime was being perceived in the primary school course books written during the reign of the Sultan Abdulhamid the Second (1876-1909, and how the ruler and an acceptable individual was being described in an age where the empire was being disintegrated and in a state of utter backwardness.

  3. Non-destructive testing (NDT) of metal cracks using a high Tc rf-SQUID and eddy current method

    Energy Technology Data Exchange (ETDEWEB)

    Lu, D.F.; Fan, C.; Ruan, J.Z. [Midwest Superconductivity Inc., Lawrence, KS (United States)] [and others

    1994-12-31

    A SQUID is the most sensitive device to detect change in magnetic field. A non-destructive testing (NDT) device using high temperature SQUIDs and eddy current method will be much more sensitive than those currently used eddy current systems, yet much cheaper than one with low temperature SQUIDs. In this paper, we present our study of such a NDT device using a high temperature superconducting rf-SQUID as a gradiometer sensor. The result clearly demonstrates the expected sensitivity of the system, and indicates the feasibility of building a portable HTS SQUID NDT device with the help from cryocooler industry. Such a NDT device will have a significant impact on metal corrosion or crack detection technology.

  4. Non-destructive testing (NDT) of metal cracks using a high Tc rf-SQUID and eddy current method

    International Nuclear Information System (INIS)

    Lu, D.F.; Fan, C.; Ruan, J.Z.

    1994-01-01

    A SQUID is the most sensitive device to detect change in magnetic field. A non-destructive testing (NDT) device using high temperature SQUIDs and eddy current method will be much more sensitive than those currently used eddy current systems, yet much cheaper than one with low temperature SQUIDs. In this paper, we present our study of such a NDT device using a high temperature superconducting rf-SQUID as a gradiometer sensor. The result clearly demonstrates the expected sensitivity of the system, and indicates the feasibility of building a portable HTS SQUID NDT device with the help from cryocooler industry. Such a NDT device will have a significant impact on metal corrosion or crack detection technology

  5. AMASYA SERICULTURE IN OTTOMAN PERIOD OSMANLI DÖNEMİNDE AMASYA’DA İPEKÇİLİK

    Directory of Open Access Journals (Sweden)

    İsmail KIVRIM

    2011-12-01

    Full Text Available As an invaluable commercial good, Silk was the focus of attentionfor a long period of time throughout the history of world economy.Especially, in the 16th and 17th centuries silk was called as ‘White Gold’as an alternative of silver. Thus it became a significant element that playsa key role in the shaping of the history of world economy and politics.The leading city in the Ottoman silk production and weaving isBursa. This study aims to explain the importance of another silkproduction center in Ottoman, Amasya. The city was situated on thetrade route of Iran, it was a city of a shahzade, a prince, it was quite closeto the Balck-Sea trade ports and it offered suitable climatic conditions forsilk worms to be brought up, thanks to all these characteristics, Amasyabecame a city, whose silk was preferably in demand after Bursa.The city, which became very famous for its silk weaving in the 16thcentury, started to produce silk upon the banning of Iranian silk anddrew European traders’ attention in the 19th century. Throughout this Dünya iktisat tarihinde uzunca bir süre kendisinden sıklıkla sözettiren değerli bir ticari emtia olan ipek, özellikle 16. ve 17. yüzyıllardagümüşe alternatif olarak beyaz altın diye adlandırılmıştır. Böylece dünyaiktisat ve siyasi tarihine yön vermede önemli unsurlardan biri olmuştur.Osmanlı Devleti’nde ipek üretimi ve dokumacılığının yapıldığışehirlerin başında Bursa gelmektedir. Bu çalışma ile bir başka Osmanlışehri olan Amasya’nın da önemli bir ipek üretim merkezi olduğuaçıklanmaya çalışılmıştır. Özellikle İran ticaret yolu üzerinde bulunması,şehzade sancağı merkezi olması, Karadeniz ticaret limanlarına yakınlığı,ikliminin ipekböceği yetiştirilmesine uygunluğu Amasya’yı Bursa’dansonra ipekleri için aranan bir şehir haline getirmiştir.16. yüzyılda ipek dokumaları ile ünlenen şehir, İran ipeğininyasaklanması ile ipek

  6. Designing an in-situ ultrasonic nondestructive evaluation system for ultrasonic additive manufacturing

    Science.gov (United States)

    Nadimpalli, Venkata K.; Nagy, Peter B.

    2018-04-01

    Ultrasonic Additive Manufacturing (UAM) is a solid-state layer by layer manufacturing process that utilizes vibration induced plastic deformation to form a metallurgical bond between a thin layer and an existing base structure. Due to the vibration based bonding mechanism, the quality of components at each layer depends on the geometry of the structure. In-situ monitoring during and between UAM manufacturing steps offers the potential for closed-loop control to optimize process parameters and to repair existing defects. One interface that is most prone to delamination is the base/build interface and often UAM component height and quality are limited by failure at the base/build interface. Low manufacturing temperatures and favorable orientation of typical interface defects in UAM make ultrasonic NDE an attractive candidate for online monitoring. Two approaches for in-situ NDE are discussed and the design of the monitoring system optimized so that the quality of UAM components is not affected by the addition of the NDE setup. Preliminary results from in-situ ultrasonic NDE indicate the potential to be utilized for online qualification, closed-loop control and offline certification of UAM components.

  7. Nondestructive Evaluation (NDE) Exploratory Development for Air Force Systems. Delivery Order 0001: Quick Reaction NDE and Characterization--Effects of Chemical Effects of Chemical Etching after Pre-Inspection Mechanical Cleaning on Fluorescent Penetrant Indications of Fatigue Cracks

    Science.gov (United States)

    2011-08-01

    Specimen 625 -58 Cleaned with 50-ksi Water Jet ....................... 18 Figure 12. SEM Images of Inconel Specimen 626-63 Cleaned with 50-ksi Water...SEM Images of Inconel Specimen 626-22 Cleaned with Wet Glass Bead.......................... 21 Figure 15. SEM Images of Titanium Specimen 625 -02...Figure 18. SEM Images of Titanium Specimen 625 -40 Cleaned with Dry Al2O3 (240 grit) ............... 24 Figure 19. SEM Images of Inconel Specimen

  8. Fabrication and comparison of PMN-PT single crystal, PZT and PZT-based 1-3 composite ultrasonic transducers for NDE applications.

    Science.gov (United States)

    Kim, Ki-Bok; Hsu, David K; Ahn, Bongyoung; Kim, Young-Gil; Barnard, Daniel J

    2010-08-01

    This paper describes fabrication and comparison of PMN-PT single crystal, PZT, and PZT-based 1-3 composite ultrasonic transducers for NDE applications. As a front matching layer between test material (Austenite stainless steel, SUS316) and piezoelectric materials, alumina ceramics was selected. The appropriate acoustic impedance of the backing materials for each transducer was determined based on the results of KLM model simulation. Prototype ultrasonic transducers with the center frequencies of approximately 2.25 and 5MHz for contact measurement were fabricated and compared to each other. The PMN-PT single crystal ultrasonic transducer shows considerably improved performance in sensitivity over the PZT and PZT-based 1-3 composite ultrasonic transducers. Copyright (c) 2010 Elsevier B.V. All rights reserved.

  9. SIIA: a knowledge-based assistant for the SAFT ultrasonic inspection system(a)

    International Nuclear Information System (INIS)

    Melton, R.B.; Doctor, S.R.; Taylor, T.T.; Badalamente, R.V.

    1987-01-01

    SIIA(b) is a knowledge-based system designed to assist in making the operation of the Synthetic Aperture Focussing Technique (SAFT) Ultrasonic Inspection System more reliable and efficient. This paper reports on their effort to develop a prototype version of SIIA to demonstrate the feasibility of using knowledge-based systems in nondestructive evaluation (NDE). The first section of the paper describes the structure of the problem and their conceptual design of the knowledge-based system. The next section describes the current state of the prototype SIIA system and relates some of their experiences in developing the system. The final section discusses their plans for future development of SIIA and the implications of this type of system for other NDE techniques and applications

  10. FORTUNE-TELLING IN THE SEYAHATNAME OF EVLIYA CELEBI EVLİYA ÇELEBİ SEYAHATMESİ’NDE FAL

    Directory of Open Access Journals (Sweden)

    Elif DÜLGER

    2011-12-01

    Full Text Available According to the Turkish Folklore Archive Guide prepared in 1976by the National Folklore Research Deparment of Ministry of Culture ofthe time, which is now called the Ministry of Culture directorate generalfor research and development of folk culture, article „K‟ in the guide wasdesignated for beliefs, while the subjects of Turkish folklore was beingdetermined. In this part of the guide which was prepared based on thecategorization in hundreds, dream and fortune-telling appears in the „K700‟ category. As is understood from this information, we come across fortunetellingin the part which is designated for beliefs in folklore. Fortunetellingupon which little study is conducted is a branch of Turkishfolklore -handled in different researches- and it bears importance in thatit shows people‟s approach to supernatural powers.This study is based on assessing information related to fortunetellingwhich was recorded while giving information about various placesin Seyahatname,which is an important work as far as Turkish culturalhistory, literature and folk science is considered. The main aim of ourstudy is to include this important work of our cultural history in theresearches on fortune-telling and to form the basis for the studies that weare going to carry out on fortunetelling on which little research isconducted. 1976 yılında, şimdiki adı Kültür Bakanlığı Halk KültürleriniAraştırma ve Geliştirme Genel Müdürlüğü olan, zamanın KültürBakanlığı Millî Folklor Araştırma Dairesi Başkanlığı tarafındanhazırlanan Türk Folklor Arşiv Kılavuzuna göre Türk folklorunun konularıbelirlenirken kılavuzun “K” maddesi inanışlara ayrılmıştır. 100‟lükkodlama seviyesinde hazırlanan kılavuzun bu bölümünde “K 700”kodlamasında rüya ve fal yer almaktadır.Bu bilgilerden anlaşıldığı üzere fal, folklorun inanışlar bölümündekarşımıza çıkmaktadır. Değişik araştırmalarda ele alınan T

  11. OH CHARACTERS OF AMAN SASPAEV STORIES AMAN SASPAEV’İN ÖYKÜLERİNDE KİŞİLER DÜNYASI

    Directory of Open Access Journals (Sweden)

    Chinara SASYKULOVA

    2011-09-01

    Full Text Available Aman Saspayev who started his writer's life at China and is one of the today's Kyrgyz literature writers, his stories hold a peculiar place in a technical organization and also in terms of expression at Kyrgyz storytelling. First stories of writer published at 1966 with the name of Gülkayır (Ebegümeci after he had returned from China to Kyrgyzstan. Aman Saspayev who used a symbolic language, had fronted to status storytelling more than event storytelling. Probably for this reoson people's world at stories consist of ordinary people, objects and assets.In this study, through people at stories of Aman Saspayev, we will try to analyze the technic of writer. In this study also we will give place to some elements which reflected from writer's life to his stories.Such that to determined Kyrgyz and Uyghurs as a story heros of his stories that he had written at China to give ordinary occurrence also has thematic contents. Aman Saspayev, although he had written many stories during Soviet Union, he avoid bad discourses or good discourses about Union.In our article also it will be given a place about the writer's stance against the Soviet system using his stories. Yazarlık hayatına Çin’de başlayan ve Kırgız edebiyatının günümüz yazarlarından birisi olan Aman Saspayev’in öyküleri, gerek teknik kuruluş ve gerekse anlatı bakımından Kırgız öykücülüğünde kendine mahsus bir yer tutar. Yazarın ilk öyküleri Çin’den Kırgızistan’a döndükten sonra 1966’da Gülkayır (Ebegümeci adıyla yayımlanır. İlk öykülerinden itibaren sembolik bir dil kullanan Aman Saspayev, olay öykücülüğünden daha çok durum öykücülüğüne yönelmiştir. Bu sebeple olsa gerek öykülerdeki kişiler dünyası sıradan insanlar, nesneler veya varlıklardan oluşur. Bu çalışmada Aman Saspayev’in öykülerindeki kişiler aracılığı ile yazarın öykü tekniğini çözümlenmeye çalışılacaktır. Yazarın hayatından

  12. Development of portable phased array UT system for real-time flaw imaging

    International Nuclear Information System (INIS)

    Goto, M.

    1995-01-01

    Many functions and features of phased array UT technology must be useful for NDE in the industrial field. Some phased array UT systems have been developed for the inspection of nuclear pressure vessel and turbine components. However, phased array UT is still a special NDE technique and it has not been used widely in the past. The reasons of that are system size, cost, operator performance, equipment design and others. TOSHIBA has newly developed PC controlled portable phased array system to solve those problems. The portable phased array UT system is very compact and light but it is able to drive up to 32-channel linear array probe, to display real-time linear/sector B-scan, to display accumulated B-scan with an encoder and to display profile overlaid B-scan. The first applications were turbine component inspections for precise flaw investigation and flaw image data recording

  13. Endüstriyel İşletmelerde Franchising Model Önerisi: Hazır Beton Sektöründe Bir Uygulama

    Directory of Open Access Journals (Sweden)

    İpek Kazançoğlu

    2016-12-01

    Full Text Available Endüstriyel pazarda faaliyet gösteren firmaların daha hızlı büyüyerek, yeni pazarlara açılmasında franchising sistemi bir yeni bir satış, dağıtım kanalı olarak değerlendirilmektedir. Bu araştırmada amaç,  hazır beton sektöründe faaliyet gösteren bir firmanın franchising sistemini bir iş modeli olarak benimseme kararında dikkat etmesi gereken unsurları ve karşılaşılan zorlukları incelemektedir. Örnek olay çalışması olarak ele alınan çalışmada,  BATIBETON A.Ş. firmasının yedi yöneticiyle BATIBETON markasının franchising uygulamalarına ilişkin görüşlerini öğrenmek amacıyla derinlemesine görüşmeler yapılmıştır. Bu görüşmeler sonucunda, franchising sisteminin hazır beton sektöründe bir model önerisi olarak uygulanıp/uygulanmayacağı değerlendirilmiştir. Yapılan görüşmelerden elde edilen bulguların diğer endüstriyel işletmeler içinde geliştirilebilecek bir franchising iş modeli kararında etkili olabilecek faktörlerin anlaşılması yönünden uygulamaya katkı sağlayacağı düşünülmektedir.

  14. Non-destructive evaluation of welding part of stainless steels by phased array system

    International Nuclear Information System (INIS)

    Tatematsu, Nobuhiro; Matsumoto, Eiji

    2009-01-01

    Recently, more accurate and convenient Non-Destructive Evaluation techniques are required for flaw inspection of structural materials. Phased array ultrasonic transducers are expected as such as NDE technique but there are many subjects to be solved. Furthermore, commercial phased array systems with conventional scanning and imaging techniques have not fulfilled their maximum potential. The purpose of this paper is to improve the phased array system to be applicable to the inhomogeneity evaluation of welding part of stainless steels. (author)

  15. Discussion of ALTERNATIVE systems for industrial radiography using X-ray films

    International Nuclear Information System (INIS)

    Vaessen B.; Perdieus, P.; Proegler, H.

    1995-01-01

    Industrial radiography using X-ray films is an established method of NDE. In the last few years, ''novel developments'' have been put on the market as ''alternatives'' to conventional radiography, as e.g. fluorescent screen/film systems, cost-saving films, wide-latitude films, and storage phosphor films. AGFA as a market leader in the sector of X-ray films for industrial radiography has been testing these alternatives, taking into account image quality, sensitivity, handling in terms of portability, reliability, and the essential functions for NDE: (1) Detection of X-radiation; (2) conversion to optical image; (3) evaluation and validation; (4) documentation and archivation. The advantages and drawbacks, the information transfer capabilities, and the performance from the applications point of view are discussed primarily for fluorescent screen/film systems and storage phophor systems. (orig./MM) [de

  16. Prevención de ceguera por retinopatía diabética: ¿dónde estamos?

    Directory of Open Access Journals (Sweden)

    Beatriz Rodríguez Rodríguez

    Full Text Available La diabetes es una de las cuatro enfermedades no transmisibles prioritarias identificadas por la Organización Mundial de la Salud, junto con la enfermedad cardiovascular, el cáncer y la enfermedad respiratoria crónica. En este siglo XXI se habla de una "epidemia global de diabetes", fenómeno relacionado particularmente con la diabetes mellitus tipo II y que está teniendo lugar tanto en países desarrollados como en aquellos en vías de desarrollo. Cuba se une desde 1999 a la iniciativa Visión 2020 y desarrolla desde la propia fecha un plan de prevención de ceguera y baja visión. Hoy, donde la prevalencia de diabetes aumenta, asociada al aumento de la esperanza de vida y a los cambios en el estilo de vida, los oftalmólogos cubanos trabajamos en la prevención de la ceguera por retinopatía diabética. En esta revisión nos proponemos analizar dónde estamos en relación con la Guía práctica clínica de retinopatía diabética para Latinoamérica, publicada en el 2011.

  17. KARS İLİNDE ÖRGÜN EĞİTİMİN GELİŞİMİ VE MEVCUT DURUMU

    OpenAIRE

    DEMİR, MUCİP

    2016-01-01

    Doğu Anadolu Bölgesinin Kars Erzurum bölümünde yer alan Kars İli ortalama irtifası 2000 metre civarında olan ve birçok yeri volkanik materyallerle örtülü Kars Platosu üzerinde bulunmaktadır. Mevcut topografik koşulların etkisiyle sert karasal iklimin görüldüğü ilde başta nüfus olmak üzere diğer beşeri faaliyetler bu coğrafik faktörlerin yoğun etkisiyle şekillenmektedir. İlde halen 300.000 civarında bulunan nüfus il dışına doğru meydana gelen göçlerle azalış eğilimi göstermektedir.373 ilkokul,...

  18. Consentimiento informado en el área clínica ¿Cómo, dónde y cuándo?

    Directory of Open Access Journals (Sweden)

    Eliana Maribel Quintero Roa

    2009-08-01

    Full Text Available ResumenEl consentimiento informado es catalogado hoy día como un derecho humano fundamental y básico que, a pesar de no tener su origen en la medicina, cuando se instala en esta adquiere un gran componente ético. El presente escrito propone abordar la temática del consentimiento informado haciendo un análisis a partir de la formulación de una pregunta que abarca puntos clave que generan controversia respecto de su desarrollo adecuado. Además, se brindan lineamientos generales que permiten aclarar cuáles son los tipos de consentimiento, donde y quien debe realizarlo, y como proceder en situaciones especiales, como por ejemplo, cuando se trata de pacientes incompetentes. Posteriormente se aborda el papel que juega enfermería en la obtención del consentimiento, y cuál es su responsabilidad profesional a la luz de la normativa deontológica. Finalmente, se realiza una reflexión sobre la responsabilidad que debe asumir toda institución de salud, comprometida en la oferta de servicios de calidad para la adecuada implementación de este proceso.[Quintero Roa EM. Consentimiento informado en el área clínica. ¿Cómo, dónde y cuándo?. MedUNAB 2009; 12:96-101].

  19. Aden Körfezi’nde Yaşanan Deniz Haydutluğu Eylemlerinin Dünya ve Türk Deniz Ticareti Üzerindeki Etkisi

    Directory of Open Access Journals (Sweden)

    Muhammet AYDIN

    2016-03-01

    Full Text Available Deniz ticaretinde büyük öneme sahip Aden Körfezi’nde meydana gelen deniz haydutluğu faaliyetleri, sadece bölgesel değil, aynı zamanda tüm dünya deniz ticareti üzerinde ciddi etkilere sahiptir. Başlangıçta yabancı bandıralı balıkçı gemileri ile başlayan, daha sonra diğer gemi türlerini de içine alan bir deniz haydutluğu faaliyeti gelişmiştir. Yapılan bu çalışmada, Aden Körfezi’nde yaşanan deniz haydutluğu eylemlerinin deniz ticareti üzerindeki etkisinin incelenmesi amaçlanmıştır. Çalışma kapsamında, NATO’nun 2013 yılı Somali Raporu’ndaki gemilere yaklaşma, saldırı, ele geçirme ve bozma (gemiler saldırıya uğradıktan sonra değerli olan yükler alınması ve serbest bırakılması eylemlerinin, UNCTAD’ın 2014 yılı Somali raporundaki deniz haydutluğu eylemlerinin neden olduğu fidye, sigorta, rota değişimi, güvenlik (güvenlik ekipmanı ve gemilerde silahlı adam/güvenlik personeli bulundurma ve askeri maliyetlerle ilişkisi incelenmiştir. Çalışmada verilerin analizi için IBM SPSS Statistics 22.0 programı kullanılarak korelasyon analizi ve Spearman’s rho analizi yapılmıştır. Çalışma sonuçlarına göre, gemilere yaklaşma ve ele geçirme eylemlerinin fidye, sigorta, rota değiştirme ve askeri giderler üzerinde daha anlamlı etkilerinin olduğu, güvenlik giderleri üzerindeki etkisinin anlamlı olmadığı bulunmuştur. Saldırı ve bozma eylemlerinin ise sadece güvenlik maliyetleri üzerinde anlamlı bir etkisinin olduğu diğer maliyetler üzerinde etkili olmadığı görülmüştür.

  20. Tıbbi ve Aromatik Bitkilerin Antibakteriyel Aktivitesi ve Tekstil Sektöründe Kullanımı

    Directory of Open Access Journals (Sweden)

    Hülya KESİCİ GÜLER

    2015-11-01

    Full Text Available Özet: İnsanların doğala yönelmesi ile birlikte tıbbi ve aromatik bitkilere ilgi gün geçtikçe artmaktadır. Tıbbi aromatik bitkiler, hastalıkları önlemek ve iyileştirmek, sağlığı devam ettirmek için insanlık tarihinin başlangıcından beri ilaç olarak kullanılan bitkilerdir. Bu bitkilerin kullanımları ilaç, gıda, meşrubat, kozmetik sanayi, sabun ve parfüm üretiminde sınırlı kalmamış, günümüzde organik tarım ve hayvancılıkta kullanımları artış göstermektedir. Ayrıca günümüzde farklı özelliklerinden dolayı birçok sektörde de kullanılmaya başlanmıştır. Bunlardan bir tanesi de tekstil sektörüdür. Tıbbi ve aromatik bitkiler barındırdıkları antibakteriyel özellik sayesinde sentetik tekstil bitim maddelerine alternatif oluşturmaktadır. Tekstilde kullanılacak antibakteriyel maddelerden beklenen en önemli özelliklerden bir tanesi kullanılan maddenin insan ve çevre sağlığını olumsuz etkilememesi ve tekstil mamulünün diğer özelliklerini olumsuz yönde değiştirmemesidir. Bu nedenle son yıllarda çevre dostu ve doğal esaslı antibakteriyel maddelerin eldesi ve tekstil uygulamalarına olan ilgi hızla artmaktadır. Buna bağlı olarak yapılan çalışmada; tıbbi ve aromatik bitkilerin antibakteriyel aktivitesinin çeşitli yöntemlerle belirlenmesi ve tekstil sektöründe antibakteriyel bitim maddesi olarak kullanımı araştırılmıştır. Anahtar kelimeler: Tıbbi ve aromatik bitkiler, antibakteriyel aktivite, tekstil Antibacterial Activity of Medicinal and Aromatic Plants and Utilization in Textile Industry Abstract: Interest in medicinal and aromatic plants increases along with day by day with natural demands of people. Medicinal and aromatic plants, that are used for protecting and healing illness, and continving the human health, since the beginning of humanity. These plants are used not only in medicine, food, beverage, cosmetic industry, soap and perfume

  1. The Re-election of the Indonesian President: Reasons and Background Präsidentschaftswahlen in Indonesien: Ursachen und Hintergründe zur Wiederwahl Susilo Bambang Yudhoyonos

    Directory of Open Access Journals (Sweden)

    Patrick Ziegenhain

    2009-10-01

    Full Text Available Incumbent president Susilo Bambang Yudhoyono (SBY was re-elected as Indonesian president in the elections on 8 July 2009 with over 60 per cent of the votes. The reasons for the victory were his relatively successful economic policies, his efforts in the fight against corruption, and the poor quality of his political opponents. The retired general made a military career under the authoritarian New Order and then became a politician after democratisation started in 1998. In 2004, he was elected president with the support of Islamic parties, which he then included in his government. As a person close to the military, SBY avoided reducing the privileges of the Armed Forces and thus democratic deepening has been stalled. However, there are good chances that economic progress and political stability will prevail during his second term. Der amtierende Präsident Susilo Bambang Yudhoyono wurde in der Wahl am 8. Juli 2009 mit über 60% der Stimmen wiedergewählt. Gründe für den Wahlsieg waren seine relativ erfolgreiche Wirtschaftspolitik, seine Bemühungen im Kampf gegen die Korruption, aber auch die wenig Erfolg versprechenden Gegenkandidaten. Der General im Ruhestand machte unter der autoritären Neuen Ordnung Karriere bei den Streitkräften und wurde nach dem Beginn des Demokratisierungsprozesses im Jahr 1998 Politiker. Im Jahr 2004 wurde er mit der Unterstützung der islamischen Parteien zum Präsidenten Indonesiens gewählt. Als eine dem Militär nahestehende Person vermied er, die Privilegien der Streitkräfte zu reduzieren, was die Qualität der Demokratie nicht erhöhte. Dennoch stehen die Chancen gut, dass in seiner zweiten Amtszeit wirtschaftlicher Aufschwung und politische Stabilität anhalten werden.

  2. Pasinler İlçesi (Erzurum’nde Şeker Pancarı (Beta vulgaris Bitkilerinden İzole Edilen Fusarium spp. ve Patojeniteleri

    Directory of Open Access Journals (Sweden)

    Ömer Faruk KARYAĞDI

    2016-05-01

    Full Text Available Bu çalışma Pasinler ilçesi (Erzurum’nde şeker pancarı (Beta vulgaris L. bitkilerinden izole edilen Fusarium türlerini ve patojenitelerini belirlemek amacıyla 2009 yılında yürütülmüştür. Şeker pancarı bitkisinden yapılan izolasyon çalışmaları sonucunda 194 Fusarium izolatı elde edilmiştir. Çalışmada elde edilen izolatların %37,63’ü F. equiseti, %31,44’ü F. oxysporum, %13,92’i F. acuminatum, %10,82’si F. solani, %4,12’si F. heterosporum, %1,55’i F. avenaceum ve %0,52’si F. graminearum olarak saptanmıştır. Yapılan patojenite testlerinde F. acuminatum (P2-8A1, F. equiseti (P1-6, F. heterosporum (P10-30, F. oxysporum (P8-24, P9-36 ve F. solani (P8-2 izolatları en yüksek hastalık şiddeti oluşturmuştur. F. acuminatum ve F. graminearum için şeker pancarı bitkisi, Türkiye’de yeni konukçu kaydı olarak belirlenmiştir.

  3. Halı Sektöründe İhracat Yapan Firmaların Markalaşma Düzeylerinin

    Directory of Open Access Journals (Sweden)

    Mustafa METE

    2017-07-01

    Full Text Available Dış pazarlar, tehditleri ve fırsatları bünyesinde barındırmanın yanı sıra ulusal sınırlarla yetinmeyerek tüm dünyada adından söz ettirmek isteyen firmaların riskleri göze alarak zorlu rekabet ortamı içerisine girdikleri tespit edilmiştir. Markalaşma üzerine ülkemizdeki çalışmaların sayısının oldukça yetersiz olduğu, özellikle halı sektöründe ise daha az olduğu görülmektedir. Bu çalışmada Türk ekonomisinde önemli bir yere sahip olan halı sektörü ihracatında markalaşmanın etkilerinin tespit edilmesi amaçlanmıştır. Bu amaç doğrultusunda Gaziantep ilinde faaliyet göstermekte olan ve ihracat yapan halı firmaları üzerinde çalışma gerçekleştirilmiştir. Çalışmaya toplam 50 firma dahil edilmiştir. Veriler anket yöntemiyle elde edilmiştir. Çalışmadan elde edilen verilerin analizi SPSS 16.0 programı ile yapılmıştır. Yapılan analizler neticesinde bir marka adı altında ihracat yapan firmaların ihracat performansının daha yüksek olduğu, Turquality desteği alan firmaların son 3 yıllık ihracat ve satış performansının daha yüksek olduğu tespit edilmiştir.

  4. Kovada Gölü'nde Yaşayan İstakozlarda (Astacus leptodactylus Bazı Ağır Metallerin Birikiminin İncelenmesi

    Directory of Open Access Journals (Sweden)

    İsmail Kır

    2010-11-01

    Full Text Available 05.04.2005-23.02.2006 tarihleri arasında yapılan bu çalışmada; Kovada Gölü'nde yaşayan istakoz (Astacus leptodactylus'ların kas, karaciğer ve karapaks dokularında bazı ağır metal birikiminin incelenmesi amaçlanmıştır. Çalışmada; 32 adet tatlısu istakozu gölü'ün değişik bölgelerinden mevsimlik periyotlarla yakalanarak incelenmiştir. Örneklerin ağır metal analizi ICP-OES cihazı ile yapılmıştır. Tatlısu istakozunda yapılan ağır metal analizleri sonucunda doku ve organlarda Cu, Mn, Zn, Al, Ni, Cd, Pb, Cr ve Fe tespit edilmiştir. Doku ve organlarda en fazla biriken metalin Al olduğu belirlenmiştir. Metallerin, karaciğer ve karapaksta kas dokusuna göre daha fazla biriktiği saptanmıştır. Anahtar kelimeler: Ağır Metal, Kovada Gölü, Su Kirliliği, Tatlısu istakozu The Investigation of some Heavy Metals in Crayfish (Astacus leptodactylus Inhabiting Kovada Lake This study was carried out between 05.04.2005 - 23.02.2006 and was aimed to investigate accumulation of some heavy metals in muscle, liver and carapace tissues of crayfish (Astacus leptodactylus inhabiting Kovada Lake. In this study, totally 32 crayfish were caught from different regions of Kovada Lake seasonally and investigated. The heavy metal analysis of samples were carried out by using ICP-OES. According to the results of the analysis of heavy metals were determined Cu, Mn, Zn, Al, Ni, Cd, Pb, Cr and Fe in tissues and organs of crayfish. It was determined that Al was the highest metal in tissues and organs. The highest metal concentrations were found in the liver and carapace than muscle. Key words: Heavy Metal, Kovada Lake, Water Pollution, Crayfish

  5. La división de poderes en la Constituciónde Cádiz de 1812

    Directory of Open Access Journals (Sweden)

    María Luisa Balaguer Callejón

    2012-01-01

    Full Text Available El artículo tiene por objeto analizar el principio liberal de la división de poderes, elemento imprescindible para la limitación y control de los poderes públicos entre sí, garantía de la libertad y la igualdad de los ciudadanos, en la Constitución de Cádiz de 1812. La Carta Magna gaditana se adscribe a la separación de poderes rígida ya que los constituyentes estaban más preocupados de limitar el poder ejecutivo del monarca que de ejercitar un control efectivo de un poder sobre otro. Asimismo, no contiene exactamente un sistema de control de los poderes del Estado al carecer de un sistema de frenos y contrapesos del poder, porque en los ilustrados estaba la idea de que cada poder debía tener una función y aunque el poder centralizado se vio que acarreaba excesos, no se atisbó que el puro poder fragmentado sin más límites, que no contrapesos, que los establecidos al poder regio también los acarrearía. The article aims to analyze the liberal principle of separation of powers, an essential element for the limitation and control of public authorities with each other, guaranteeing freedom and equality of citizens, the Constitution of Cadiz of 1812. The Magna Carta Cadiz is ascribed to the rigid separation of powers because the constituents were more concerned to limit the executive power of a monarch to exercise effective control of a power over another. It also does not contain exactly one control system of the State authorities have no system of checks and balances of power, because in the picture was the idea that each branch should have a function, although power was centralized which carried excesses, not the sheer power peered fragmented with no limits, no counterweights, which established the royal power also entail.

  6. Development of a non destructive evaluation system using infrared images for divertor on nuclear fusion experiment reactor

    International Nuclear Information System (INIS)

    Yokoyama, Kenji; Suzuki, Satoshi; Ezato, Koichiro; Seki, Yohji; Enoeda, Mikio; Akiba, Masato

    2008-01-01

    An infrared thermography NDE facility which is utilized in the acceptance test of ITER divertor components has been developed in JAEA. This NDE facility can inspect the integrity of the bonding interface of the divertor components based on its surface temperature response by means of switching of hot (95 deg C)/cold (5 deg C) water. The advantages of this facility are 1) to have active coolant purging system which enables rapid temperature change and 2) to inspect the surface and the both side walls of three components at a time. We have conduct test operation for the divertor mockups and have found sufficient performance to implement the required acceptance test of the ITER divertor components. (author)

  7. Book Review Who lives where. Habitability conditions of the population living in the great Andalusian cities / Reseña Del Libro Quién vive dónde. Las condiciones de habitabilidad de la población que vive en las grandes ciudades andaluzas

    Directory of Open Access Journals (Sweden)

    Diego Sánchez González

    2016-09-01

    Full Text Available Book Review Who lives where. Habitability conditions of the population living in the great Andalusian cities Reseña Del Libro Quién vive dónde. Las condiciones de habitabilidad de la población que vive en las grandes ciudades andaluzas

  8. Tiit Kask, Aldur Vunk (Hrsg.): Reis (nõukogude) läände / Journey to the [Soviet] west. Kuurortlinn Pärnu 1940-88. Artiklite kogumik / Resort town of Pärnu 1940-88. Collection of articles, Pärnu: Pärnu Linnavalitsus 2009, 121 S., 97 Abb. / Andr

    Index Scriptorium Estoniae

    Fülberth, Andreas

    2011-01-01

    Raamatuarvustus: Reis (nõukogude) läände : kuurortlinn Pärnu 1940-88 : artiklite kogumik = Journey to the [Soviet] West : resort town of Pärnu during 1940-88 : collection of articles. Pärnu, 2009

  9. Optical fiber sensors: Systems and applications. Volume 2

    Science.gov (United States)

    Culshaw, Brian; Dakin, John

    State-of-the-art fiber-optic (FO) sensors and their applications are described in chapters contributed by leading experts. Consideration is given to interferometers, FO gyros, intensity- and wavelength-based sensors and optical actuators, Si in FO sensors, point-sensor multiplexing principles, and distributed FO sensor systems. Also examined are chemical, biochemical, and medical sensors; physical and chemical sensors for process control; FO-sensor applications in the marine and aerospace industries; FO-sensor monitoring systems for security and safety, structural integrity, NDE, and the electric-power industry; and the market situation for FO-sensor technology. Diagrams, drawings, graphs, and photographs are provided.

  10. Status of advanced UT systems for the nuclear industry

    International Nuclear Information System (INIS)

    Behravesh, M.; Avioli, M.; Dau, G.; Liu, S.

    1987-01-01

    An advanced ultrasonic testing (UT) system is a configuration of hardware that includes some type of computer. The computer may be hardwired to perform specific functions or have appropriate software. It may typically be used for data acquisition, signal processing, image generation, pattern recognition and data analysis. Additionally, advanced systems have data storage and are, therefore, different from the standard transducer-pulser/receiver systems that rely on human filtering and written documentation of the filtered data. The number of systems becoming commercially available is growing each year. The NDE managers of utilities, the end users of these systems, are often faced with the decision as to What system is right for my inspection problem? Is an advanced UT system a cost effective way to go? To help this group, the Electric Power Research Institute (EPRI) has initiated a project whose end product will be a Utility NDE Manager's Guide to Advanced UT Systems. A short summary of the available data to date presented here. Tables are used to give an immediate overview of capabilities

  11. SURFACE DISTRIBUTION MODELLING FOR PRECIPITATION IN THE EGE REGION EGE BÖLGESİ’NDE YAĞIŞIN YÜZEYSEL DAĞILIM MODELLEMESİ

    Directory of Open Access Journals (Sweden)

    Muhammet BAHADIR

    2011-06-01

    Full Text Available The scope of this study was the surface distribution modeling of precipitation in Anatolia and the Aegean Region which covers the western part of our country. The precipitation was handled in terms of 10 year segments and applied with Interactive 3D Analysis, Geographically Intensive Regression, Radial Basis Function and Quadratic Trend Analysis after which a precipitation dispersion map was established. It was concluded that planetary factors had a primary impact on the dispersion and change of precipitation in the region. On the other hand, topographical characteristics were determining for local precipitation changes, it was particularly evident that the northern parts of the mountains subject to exposure received more precipitation. The temporal changes in the precipitation of the region has shown a general declining trend from 1975 up to 2010. Although the declined amount is more pronounced on the coastal parts, the situation is more critical in the inland parts with less precipitation. According to trend analysis results targeting the future, indications pertaining to the continuation of the declining precipitatıon trend have been observed Bu çalışmada Anadolu’nun ve ülkemizin batı kesimini kapsayan Ege Bölgesi’nde yağışın yüzeysel dağılım modellemesi gerçekleştirilmiştir. Yağışa 10’ar yıllık dönemler halinde Etkileşimli 3D Analizi, Coğrafi Ağırlıklı Regresyon, Radial Basis Function ve Quadratic Trend Analizleri uygulanmış ve yağış dağılış haritaları oluşturulmuştur. Bölgede yağışın dağılışı ve değişimi üzerinde plenater faktörlerin birinci derecede etkili olduğu sonucuna ulaşılmıştır. Yağışın lokal değişimleri üzerinde ise topoğrafik özellikler belirleyici olmuş, özellikle dağların kuzey kesimleri bakıya bağlı olarak daha fazla yağış aldığı tespit edilmiştir. Bölgede yağışın zamansal değişiminde, 1975’den 2010 yılına kadar genel anlamda

  12. TOPLAM HİZMET KALİTESİNİN SERVQUAL ANALİZİ İLE ÖLÇÜMÜ: BANKACILIK SEKTÖRÜNDE BİR ARAŞTIRMA

    OpenAIRE

    YÜCEL, Mustafa

    2014-01-01

    Öz Malın hizmet olduğu bankacılık sektöründe hizmetin müşteriler tarafından nasıl algılandığının bilinmesi çok önemlidir. Bu yüzden de bankaların müşteri memnuniyetini sürekli ölçerek memnuniyetsizliğin ortaya çıktığı hizmetlerde iyileştirmelere gitmeleri kaçınılmaz bir zorunluluk haline gelmektedir. Bu çalışmada hizmet kalitesinin ölçümüne yönelik olarak, Parasuraman, Zeithhaml ve Berry tarafından geliştirilen Servqual hizmet kalitesi ölçüm modeli incelenmektedir. Model, hizmete iliş...

  13. The state-of-the Art of the Established Conventional and Advanced NDE-Techniques and Procedures for Defect Detection and Sizing - Part D: application of ultrasonic techniques for the inspection of austenitic components

    International Nuclear Information System (INIS)

    Edelmann, X.

    1997-01-01

    Ultrasonic examination of austenitic welds is possible in many cases but special techniques have often to be applied. The 'Handbook on the Ultrasonic Examination of Austenitic Welds' of the International Institute of Welding gives advice how to devise procedures for the detection, location and evaluation of ultrasonic indications of weld defects. In most circumstances it is necessary to use angled longitudinal wave probes. Austenitic weld examination is more complex and more expensive than ferritic weld examination. Detection and characterization of intergranular stress corrosion cracking has been improved by special qualification programs of the EPRI NDE Center. Dissimilar Metal welds are difficult to examine. Techniques have been developed for detection of circumferential and axial defects. Cast stainless steel structures are in general still extremely difficult to examine as a recent round robin test of the PISC program has shown. Mechanized examination with adequate data acquisition processing and presentation techniques enables better interpretation of examination results. (author)

  14. ASETİK ASİTİN ETİL ALKOL İLE KATALİTİK REÇİNE KATALİZÖRLÜĞÜNDE ESTERLEŞME KİNETİĞİ

    Directory of Open Access Journals (Sweden)

    Erol İNCE

    2002-01-01

    Full Text Available Seyreltik asetik asit çözeltilerinin asidik gruplu polimerik reçine katalizörlüğünde etil alkol ile esterleşme reaksiyonu kesikli bir reaktörde gerçekleştirilmiştir. Reaksiyon kinetiği üzerine sıcaklık, başlangıçtaki reaktanların mol oranları, başlangıçtaki su konsantrasyonu ve katalizör konsantrasyonu etkileri incelenmiştir. Kesikli reaktörde sıvı ve buhar fazlarının hızla dengeye ulaşmasının reaksiyon kinetiğini sınırladığı belirlenmiştir.

  15. Tone burst generator for a Non-Destructive Testing system based on ultrasonic guided waves

    OpenAIRE

    Jiménez Sánchez, Daniel

    2011-01-01

    English: This PFC provides a design of a tested and specific tone-burst generator circuit for a Non-Destructive System based on ultrasonid guided waves. This circuit includes a complementary protection circuit for the NDT system working in a pulse-echo configuration. In this paper, a brief state f art about different driving circuits employed in distinct NDE systems is presented. Castellano: El PFC proporciona un diseño electrónico específico y probado de un circuito excitador de salvas (C...

  16. KORUMA SORUMLULUĞU: DARFUR KRİZİ VE LİBYA MÜDAHALESİ ÇERÇEVESİNDE BİR DEĞERLENDİRME

    Directory of Open Access Journals (Sweden)

    Orkun SÜRÜCÜOĞLU

    2017-10-01

    Full Text Available Orkun SÜRÜCÜOĞLU* Öz 1990’lı yıllarda düzenlenen uluslararası askeri müdahaleler, insan haklarının korunması düşüncesi ile devletin egemenliği ilkesi arasında gerilim oluşturmuş ve bu müdahalelerin hukukiliği tartışmaya açılmıştır. Bu konuda normatif bir konsensüs oluşturmak üzere kurulan komisyonun (International Commission on Intervention and State Sovereignty “koruma sorumluluğu” kavramıyla ortaya koyduğu görüşler kimi değişikliklerle 2005 Birleşmiş Milletler (BM Dünya Zirvesi’nin Sonuç Bildirgesi’nde kendine yer bulmuştur. Özellikle 2011 yılında Libya’ya yapılan askeri müdahaleden sonra uluslararası kamuoyunda koruma sorumluluğu kavramı tekrar gündeme gelmiştir. Bu çalışmanın amacı, koruma sorumluluğunun hukuki bir norm statüsüne ulaşıp ulaşmadığını tartışmaktır. Bunun için Darfur’da neden askeri müdahale yapılamayıp da Libya’da yapıldığı irdelenmekte ve bu karşılaştırma üzerinden çıkarımlarda bulunulmaktadır. Çalışma, koruma sorumluluğunun henüz hukuki bir norm olmadığı, ancak ahlaki bir norm olarak öne çıktığını ileri sürmektedir. İlgili durumlarda askeri müdahalenin yapılmasında BM Güvenlik Konseyi’nin daimi üyelerinin çıkarları ve bölgesel örgütlerin tavrı temel etken olmaktadır. Müdahale seçeneğinin olay bazlı değerlendirme sonucunda gündeme gelmesi ve devletleri gerektiğinde müdahaleye zorlayacak bir mekanizma bulunmaması da bu bağlamda önemli eksiklikler olarak göze çarpmaktadır. Abstract The international military interventions occurred in the 1990s caused a tension between the idea of protecting human rights and the principle of state sovereignty; and the legality of the interventions has become controversial. The Commission (International Commission on Intervention and State Sovereignty that was established to form a normative consensus put forward its views through the concept of

  17. AKILLI KARTLAR İLE YAPILAN MAL VE HİZMET SATIŞLARININ TMS-18 HASILAT STANDARDI ÇERÇEVESİNDE MUHASEBELEŞTİRİLMESİ-RECOGNITION OF SOLD GOODS AND SERVICES BY SMART CARDS WITHIN TMS-18 REVENUE STANDARD

    Directory of Open Access Journals (Sweden)

    Abitter ÖZULUCAN

    2012-06-01

    Full Text Available Bu çalışmada;, önce akıllı kart / yemek çekleri sistemi tanıtılmakta, tarafların sağladıkları fayda ve maliyetler belirtilmekte ve gerçekleşen satış işleminin taraflarca kayda geçirilmesi hususu TMS 18 Hasılat standardı kapsamında ele alınmaktadır. Elde edilen hasılatın ölçümünde, sistemin işleyişinde temel unsur olan ve üye iş yeri tarafından yemek kartı tedavül eden işletmeye hizmet faturası karşılığında ödenen komisyonların, hasılatla doğrudan ilişkilendirilebilen bir gider niteliği taşıyıp taşımaması; bu türden giderlerin Tekdüzen Muhasebe Sistemi’nden farklı olarak, TMS 18 kapsamındaki ölçümünün ve muhasebeleştirilmesinin farklı olup olmadığının belirlenmesi amacıyla kaleme alınan bu çalışma, giriş ve sonuç bölümlerinin dışında dört bölümden oluşmaktadır.-The main part of the smart card system is sellers and while they are measuring of their revenue, they should associate the commissions with revenues to record at inception. So in this paper, after the smart card system is introduced, the advantages and disadvantages of this system are exposed and then how to recognise of the selling is considered within TMS 18, Revenues Standard. In other words, the reason that we conduct this paper can be expressed that the expense of the selling commissions which arise from the selling products with smart card whether should or should not deduct to revenue while the revenue is been measured.

  18. PRIVATE PROPERTY IN PERIOD OF OTTOMAN EMPIRE AND ITS STRUCTURAL CHARACTERISTICS OSMANLI İMPARATORLUĞU DÖNEMİNDE ÖZEL MÜLKİYET VE YAPISAL ÖZELLİKLERİ

    Directory of Open Access Journals (Sweden)

    Murat ÇİFTÇİ

    2011-09-01

    Full Text Available There is a general belief that there was not an unconditional private property in the Ottoman period because of existence of tımar system. However, some authors who maintain opposite of this general belief argue that private property was realized with vaqfs. Private property during the Ottoman period commonly was in cities and was protected by the state. Actually, this circumstance was a result of a selection. Ottomans did not prefer bureaucratic structure in every fields like ancient Egyptians and Persians. They preferred a structure in parallel with ancient Greek and Roman civilizations. They probably accepted sovereignty of bureaucracy as an opposite power element against the government. Consequently, feudal Middle Age Europe lived this trouble in Ottoman building and in developing process. The Ottomans used merchants in carrying agricultural surplus products as raw material or as manufactured commodity to essential bureaucratic cities like Istanbul in a world where agricultural production was a basis and cities fed with agricultural surplus production. Primitive industrialists also became artisans and tradesmen. Condition of market economy was compulsorily constituted to provide such a surplus product flow and, in this framework, private property was instituted. Vaqfs which surpassed unconditional private property and bruised competitive conditions in the market economy was a structure over the private property. OSMAOsmanlı döneminde tımar sisteminin mevcudiyeti sebebiyle koşulsuz özel mülkiyetin olmadığı yönünde genel inanç mevcuttur. Aksini savunan birkaç yazarsa, özel mülkiyetin vakıflarla gerçekleştirildiğini savunmaktadır. Osmanlı dönemi boyunca özel mülkiyet; ağırlıklı olarak şehirlerde mevcut olmuş, devletçe de koruma altına alınmıştır. Bu durum, aslında bir seçişin sonucudur. Osmanlılar Eski Mısır ya da Persler gibi her alanda güçlü bürokratik yapılanmayı tercih etmemişler, eski Yunan

  19. RAIN VOLLEY APPLICATIONS IN UŞAK AND ITS SURROUNDINGS (EXAMLE OF TAKMAK VILLAGE UŞAK VE ÇEVRESİNDE YAĞMUR YAĞDIRMA UYGULAMALARI (TAKMAK KÖYÜ ÖRNEĞİ

    Directory of Open Access Journals (Sweden)

    Sami KILIÇ

    2011-01-01

    Full Text Available Every society whose livelyhood is based on agriculture and livestock has developed a kind of belief and application around its culture so as to resolve drought, and people have applied these methods till present time and they stil continue them. In societies, for the rain volley applications, some terms of magic of the rain and prayer of rain have been used. Although there are some magical applications among them, this pratice is generally called as the prayer of rain in Turkish culture.As the livelihood of the people in Takmak village, Eşme, a town of Uşak is based on agriculture and livestock, some practices are held during the drought seasons. The subject of the article is based on description and analysis of the techniques of the rain volley applications today in Takmak village. That’s why, important phenomenons of description data applications of the rain volley applications in Takmak village gained with participant observation and detailed interview technques will be evaluated in terms of History of Religions and the history of the rain volley applications in this village will be put forward with their religious origins. Geçim kaynağı tarım ve hayvancılığa dayanan her toplum, kuraklığı gidermek amacıyla kendi kültürü çevresinde birtakım inanış ve uygulamalar geliştirmiş, bunları geçmişten günümüze kadar uygulamış, halen de uygulamaya devam etmektedir. Toplumlarda, yağmur yağdırma uygulamaları için yağmur büyüsü ve yağmur duası terimleri kullanılmaktadır. Türk kültüründe ise bu işlemlere, içerisinde birtakım büyüsel ve sihirsel uygulamalar bulundurmakla birlikte, genel olarak yağmur duası denilmektedir.Uşak ili Eşme ilçesine bağlı olan Takmak köyünde halkın geçim kaynağı genel olarak tarım ve hayvancılık olması sebebiyle, mevsimin kurak gittiği dönemlerde, yağmur yağdırmak için birtakım pratikler yapılmaktadır. Makalenin konusunu, günümüzde Takmak köyünde

  20. PERAKENDECİLİK SEKTÖRÜNDE DİNAMİK FİYATLANDIRMA: GENİŞ BİR LİTERATÜR TARAMASI-DYNAMIC PRICING IN RETAILING INDUSTRY: A WIDE LITERATURE SURVEY

    Directory of Open Access Journals (Sweden)

    Murat Taha BİLİŞİK

    2012-07-01

    Full Text Available Bu çalışmada, perakendecilik sektöründe dinamik fiyatlandırma uygulamaları ve bu konuda yapılmış geçmiş çalışmaları kapsayan geniş bir literatür taraması ele alınmıştır. Çünkü, günümüz gelişen rekabet koşullarında taleplerin hızla değiştiği gibi fiyatlandırma politikalarının da değişkenlik göstermesi gerektiği saptanmıştır. Bu bağlamda, perakendecilik sektöründe dinamik fiyatlandırma ile ilgili literatürde yer alan çalışmalarda kullanılan yöntemler detaylı bir biçimde incelenmiş ve çeşitli özelliklerine göre sınıflandırmaya tabi tutulmuştur. Sonuç kısmında ise; literatürdeki çalışmalarda rastlanan eksikliklere ve gelecek çalışmalar için fiyat optimizasyonu hesaplamalarında göz önüne alınması gereken durumlara değinilmiştir.- In this study, dynamic pricing applications in retailing and past publications in the literature about this subject have been taken into consideration. The crucial factor making us involved in this study is both the rapid change in demand structures and also the pricing policies over time. By this mean, mathematical solution techniques in the literature used to solve dynamic pricing problems in retailing industry have been analyzed deeply and categorized according to different specialties. In the last section, lacks of mathematical solution techniques and important attributes to be taken into computations have been proposed in order to make better and more accurate price optimizations in future studies.

  1. ŞiiRSEL BiR DEKOR OLARAK "NESNEL KARŞILIK" KAVRAMI VE NECiP FAZIL KISAKÜREK'iN "BACALAR" ŞiiRiNDE YANSIMALARI

    OpenAIRE

    Çobanoğlu, Şaban

    2010-01-01

    Bu çalışmanın amacı, T. S. Eliot'ın "Hamlet And His Problems" (Hamlet ve Problemleri) başlıklı makalesinde ele aldığı "objective correlative" (nesnel karşılık) kavramının tanımını yaparak bazı yazarlarımız tarafından Türkçeye nasıl tercüme edildiğini belirtmek, ardından bizce doğru olduğunu düşündüğümüz tercihi ortaya koyarak kavramı tartışan şair ve yazarlarımızın konu ile ilgili görüşlerine yer vermektir. Makalenin son bölümünde ise, kavramı daha net bir şekilde açı...

  2. SİGORTA SEKTÖRÜNDE RİGOR MORTİS (ÖLÜM KATILIĞI) ve DEĞİŞİM FAALİYETLERİNİN ANALİZİ

    OpenAIRE

    URALCAN, Güler

    2014-01-01

    Sigorta sektörü ekonomi içindeki önemine rağmen, ülkemizde gereken ilgiyi yüzlerce yıl bulamamıştır. Onlarca yıldan beri uluslar arası karşılaştırmaların yapıldığı ekonomik göstergelerin tümünde, Türk sigorta sektörü dünya ülkeleri içinde en son birkaç ülke arasında yer almıştır. 21. yüzyılın başına dek yaşanan gelişmelere bakıldığında sektörde sigortacılık işlemlerinin yürütülebildiği ancak üretimin yeterince artırılamadığı, yeterli mali gücün sağlanamadığı, dolayısıyla sigortacılığın sosyo-...

  3. Metallic Contaminant Detection using a High-Temperature Superconducting Quantum Interference Devices Gradiometer

    International Nuclear Information System (INIS)

    Tanaka, Saburo; Akai, Tomohiro; Takemoto, Makoto; Hatsukade, Yoshimi; Ohtani, Takeyoshi; Ikeda, Yoshio; Suzuki, Shuichi

    2010-01-01

    We develop magnetic metallic contaminant detectors using high-temperature superconducting quantum interference devices (HTS-SQUIDs) for industrial products. Finding ultra-small metallic contaminants is an important issue for manufacturers producing commercial products such as lithium ion batteries. If such contaminants cause damages, the manufacturer of the product suffers a big financial loss due to having to recall the faulty products. Previously, we described a system for finding such ultra-small particles in food. In this study, we describe further developments of the system, for the reduction of the effect of the remnant field of the products, and we test the parallel magnetization of the products to generate the remnant field only at both ends of the products. In addition, we use an SQUID gradiometer in place of the magnetometer to reduce the edge effect by measuring the magnetic field gradient. We test the performances of the system and find that tiny iron particles as small as 50 × 50 μm 2 on the electrode of a lithium ion battery could be clearly detected. This detection level is difficult to achieve when using other methods. (cross-disciplinary physics and related areas of science and technology)

  4. An online real time ultrasonic NDT system for the quality control of spot welding in the automotive industry

    International Nuclear Information System (INIS)

    Athi, N; Wylie, S R; Cullen, J D; Al-Jader, M; Al-Shamma'a, A I; Shaw, A

    2009-01-01

    Resistance spot welding is the main joining technique used for the fabrication of body-in-white structures in the automotive industry. The quality of the welds depends on the profile of the spot welding electrode cap. The increased use of zinc coated steel in the industry increases wear rate of the caps, making quality control more difficult. This paper presents a novel online real time ultrasonic NDE system for resistance spot welding which evaluates every weld as it is formed. SEM results are presented to show the alloying of the electrode caps.

  5. An online real time ultrasonic NDT system for the quality control of spot welding in the automotive industry

    Science.gov (United States)

    Athi, N.; Wylie, S. R.; Cullen, J. D.; Al-Jader, M.; Al-Shamma'a, A. I.; Shaw, A.

    2009-07-01

    Resistance spot welding is the main joining technique used for the fabrication of body-in-white structures in the automotive industry. The quality of the welds depends on the profile of the spot welding electrode cap. The increased use of zinc coated steel in the industry increases wear rate of the caps, making quality control more difficult. This paper presents a novel online real time ultrasonic NDE system for resistance spot welding which evaluates every weld as it is formed. SEM results are presented to show the alloying of the electrode caps.

  6. Nondestructive Evaluation (NDE) Technology Initiative Program (NTIP). Delivery Order 0032: MAUS Implementation for Corrosion/Crack Detection in Wing Structure - Phase III

    National Research Council Canada - National Science Library

    Palmer, Donald

    2003-01-01

    ... current inspection process currently used to support B-52 programmed depot maintenance. At the conclusion of this phase, one MAUS IV system located at Oklahoma City Air Logistics Center was upgraded with the "MAUS-Wing" enhancement package...

  7. Fast Lamb wave energy shift approach using fully contactless ultrasonic system to characterize concrete structures

    Science.gov (United States)

    Ham, Suyun; Popovics, John S.

    2015-03-01

    Ultrasonic techniques provide an effective non-destructive evaluation (NDE) method to monitor concrete structures, but the need to perform rapid and accurate structural assessment requires evaluation of hundreds, or even thousands, of measurement datasets. Use of a fully contactless ultrasonic system can save time and labor through rapid implementation, and can enable automated and controlled data acquisition, for example through robotic scanning. Here we present results using a fully contactless ultrasonic system. This paper describes our efforts to develop a contactless ultrasonic guided wave NDE approach to detect and characterize delamination defects in concrete structures. The developed contactless sensors, controlled scanning system, and employed Multi-channel Analysis of Surface Waves (MASW) signal processing scheme are reviewed. Then a guided wave interpretation approach for MASW data is described. The presence of delamination is interpreted by guided plate wave (Lamb wave) behavior, where a shift in excited Lamb mode phase velocity, is monitored. Numerically simulated and experimental ultrasonic data collected from a concrete sample with simulated delamination defects are presented, where the occurrence of delamination is shown to be associated with a mode shift in Lamb wave energy.

  8. Development of non-destructive examination system for irradiated fuel rods

    International Nuclear Information System (INIS)

    Sumerling, R.; Goldsmith, L.A.; Cross, M.T.; McKee, F.

    1978-12-01

    The development of non-destructive examination (NDE) system for irradiated fuel rods is described. The system is used for testing rods within a concrete cave and consists of three parts: a fully-automated fuel rod-drive machine, designed for easy maintenance; a series of plug-in NDE modules which fit into the central space provided in the machine, plus optical/TV viewing devices and gamma-scan equipment lined up on the rod; and on electronic control equipment situated outside the concrete shielding. The equipment is at present routinely used for viewing, eddy-current testing, gamma-scanning and diameter measurement of rods. The system is flexible in that additional modules can be added later as they are developed, since there is room for three modules of standard size (about 10cm x 10 cm x 3cm) in the machine or one large module taking the full space. New developments include the use of dual frequency eddy-current testing, which allows much greater discrimination against unwanted signals, and measurement of oxide thickness using a high frequency eddy-current probe. (author)

  9. Entre el orden y el caos : ¿hacia dónde va la administración de las escuelas portuguesas?

    Directory of Open Access Journals (Sweden)

    Juan Carlos González Faraco

    2007-01-01

    Full Text Available El objetivo de este artículo es describir y analizar críticamente la situación actual de la administración del Sistema Educativo Portugués, tras las últimas reformas políticas y educativas. Para ello nos hemos valido de tres instrumentos de investigación: el análisis documental de los textos reguladores del sistema, la observación participante en instituciones escolares del Algarve y una serie de entrevistas a actores de la administración educativa portuguesa a diversas escalas. Hemos tratado de confrontar las distintas informaciones obtenidas, a partir de estas tres vías, para determinar las disonancias entre lo estipulado por los documentos normativos y lo que sucede en la realidad escolar. Todo apunta a que los objetivos y planteamientos de las normas que rigen el gobierno y administración del Sistema Educativo Portugués se ven habitual y sensiblemente alterados o desnaturalizados al ser llevados a la práctica. Esta discordancia es, a nuestro juicio, más intensa, o al menos más patente, a escala local, es decir, en las Escuelas o en los Agrupamientos de Escuelas. El artículo sugiere algunas de las causas de esta problemática y, en consecuencia, algunas medidas que habría que tomar preferentemente para su resolución.The object of this article is to describe and critically analyze the present situation of the administration of the Portuguese Educational System after recent political and educational reforms. To accomplish this we have utilized three instruments of investigation: a documentary analysis of the regulatory texts ofthe system, participant-observation of schools in the Algarve, and a series of interviews with actors situated at different levels of the Portuguese educational administration. We have attempted to scrutinize the data obtained from these three sources in order to determine the dissonance between what is stipulated by the normative documents and what actually occurs in the schools. Everything points to

  10. Assessment of Laser-Driven Pulsed Neutron Sources for Poolside Neutron-based Advanced NDE – A Pathway to LANSCE-like Characterization at INL

    Energy Technology Data Exchange (ETDEWEB)

    Roth, Markus [Technische Univ. Darmstadt (Germany); Vogel, Sven C. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Bourke, Mark Andrew M. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Fernandez, Juan Carlos [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Mocko, Michael Jeffrey [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Glenzer, Siegfried [Stanford Univ., CA (United States); Leemans, Wim [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Siders, Craig [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Haefner, Constantin [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2017-04-19

    A variety of opportunities for characterization of fresh nuclear fuels using thermal (~25meV) and epithermal (~10eV) neutrons have been documented at Los Alamos National Laboratory. They include spatially resolved non-destructive characterization of features, isotopic enrichment, chemical heterogeneity and stoichiometry. The LANSCE spallation neutron source is well suited in neutron fluence and temporal characteristics for studies of fuels. However, recent advances in high power short pulse lasers suggest that compact neutron sources might, over the next decade, become viable at a price point that would permit their consideration for poolside characterization on site at irradiation facilities. In a laser-driven neutron source the laser is used to accelerate deuterium ions into a beryllium target where neutrons are produced. At this time, the technology is new and their total neutron production is approximately four orders of magnitude less than a facility like LANSCE. However, recent measurements on a sub-optimized system demonstrated >1010 neutrons in sub-nanosecond pulses in predominantly forward direction. The compactness of the target system compared to a spallation target may allow exchanging the target during a measurement to e.g. characterize a highly radioactive sample with thermal, epithermal, and fast neutrons as well as hard X-rays, thus avoiding sample handling. At this time several groups are working on laser-driven neutron production and are advancing concepts for lasers, laser targets, and optimized neutron target/moderator systems. Advances in performance sufficient to enable poolside fuels characterization with LANSCE-like fluence on sample within a decade may be possible. This report describes the underlying physics and state-of-the-art of the laser-driven neutron production process from the perspective of the DOE/NE mission. It also discusses the development and understanding that will be necessary to provide customized capability for

  11. Transverse vibration technique to identify deteriorated wood floor systems

    Science.gov (United States)

    R.J. Ross; X. Wang; M.O. Hunt; L.A. Soltis

    2002-01-01

    The Forest Products Laboratory, USDA Forest Service, has been developing nondestructive evaluation (NDE) techniques to identify degradation of wood in structures and the performance characteristics that remain in the structure. This work has focused on using dynamic testing techniques, particularly stress wave and ultrasonic transmission NDE techniques for both...

  12. Development of CT and 3D-CT Using Flat Panel Detector Based Real-Time Digital Radiography System

    International Nuclear Information System (INIS)

    Ravindran, V. R.; Sreelakshmi, C.; Vibin

    2008-01-01

    The application of Digital Radiography in the Nondestructive Evaluation (NDE) of space vehicle components is a recent development in India. A Real-time DR system based on amorphous silicon Flat Panel Detector has been developed for the NDE of solid rocket motors at Rocket Propellant Plant of VSSC in a few years back. The technique has been successfully established for the nondestructive evaluation of solid rocket motors. The DR images recorded for a few solid rocket specimens are presented in the paper. The Real-time DR system is capable of generating sufficient digital X-ray image data with object rotation for the CT image reconstruction. In this paper the indigenous development of CT imaging based on the Realtime DR system for solid rocket motor is presented. Studies are also carried out to generate 3D-CT image from a set of adjacent CT images of the rocket motor. The capability of revealing the spatial location and characterisation of defect is demonstrated by the CT and 3D-CT images generated.

  13. ORTAÇAĞ AVRUPASI’NIN İKTİSAT TARİHİNDE FAİZ YASAĞININ KÖKENLERİ (THE ROOTS OF THE USURY PROHIBITION IN THE MEDIEVAL ECONOMIC HISTORY OF EUROPE

    Directory of Open Access Journals (Sweden)

    Kürşat Haldun AKALIN

    2013-04-01

    Full Text Available Ortaçağ filozofları tefeciliğe çok açık ve kesin bir tanımlama getirmişlerdir: anaparayı veya borçlanılan tutarı aşan her fazladan ödeme faizdir. Tüm Skolâstik yazarlar, tefeciliğin bir günah ve suç olduğu, yalnızca kilise hukuku tarafından değil bununla birlikte pek çok ülkede yürürlüğe konulan dünyevi yasalar tarafından da cezalandırılması gerektiği görüşünde fikir birliğine varmışlardı. Köktenci inanca dayanan temel Skolâstik tez, tüm biçimlerdeki insan etkinliğinin en sonunda mutlaka doğal hukuka göre yargılanması gerektiği düşüncesini içermekteydi. Tefecilik, adil olmadığı için kabul edilemezdi. Aristocu önermenin ikinci dereceden de olsa bir önemi vardı. On beşinci asırda reddedilmiş olsa dahi, bundan dolayı Skolâstik konumu asla yok olmamıştı. Aquinas, tefecilik hırsızlıktır ve adalete de aykırıdır diyerek, Aristocu görüşü açıkça ifade etmişti. The scholastic definition of usury was very clearly, whatever exceeds the principal or the sum loaned is usury. All scholastic writers agreed that usury was both a sin and a crime, punishable not only by canon law but also by the secular law of many countries. The basic scholastic thesis rested on a fundamental belief that ultimately all forms of human activity must be judged by natural law. Usury was not acceptable because it was unjust. The Aristotelian argument was subsidiary and when it was rejected in the fifteenth century the scholastic position was not thereby undermined. Aquinas clearly states Aristotelian view that usury was theft and contrary to justice.

  14. Passive electromagnetic NDE for mechanical damage inspection by detecting leakage magnetic flux. (I. Reconstruction of magnetic charges from detected field signals)

    International Nuclear Information System (INIS)

    Chen, Zhenmao; Aoto, Kazumi; Kato, Syoichi

    1999-07-01

    In this report, reconstruction of magnetic charges induced by mechanical damages in a test piece of SUS304 stainless steel is performed as a part of efforts to establish a passive nondestructive testing method on the basis of the inspection of leakage magnetic field. The approach for solving this typical ill-posed inverse problem is selected as a way in the least square method category. Concerning the ill-poseness of the system of equations, an iteration algorithm is adopted to its solving in which the designations of initial profile, the weight coefficients and the total number of iterations are taken as means of regularization. From examples using simulated input data, it is verified that the approach gives good reconstruction results in case of signals with a relative high S/N ratio. For improving the robustness of the proposed method, a Galerkin procedure with base functions chosen as the Daubechies' wavelet is also introduced for discretizing the governing equation. By comparing the reconstruction results of the least square method and those using wavelet discretization, it is found that the wavelet used approach is more feasible in the inversion of noise polluted signals. Reconstruction of 1-D and 2-D magnetic charges with the least square strategy and reconstruction of an 1-D problem with the wavelet used method are carried out from both simulated and measured magnetic field signals which are used as the validation of the proposed inversion strategy. (author)

  15. Systems

    International Nuclear Information System (INIS)

    Anon.

    1980-01-01

    Papers in this session describe the concept of mined geologic disposal system and methods for ensuring that the system, when developed, will meet all technical requirements. Also presented in the session are analyses of system parameters, such as cost and nuclear criticality potential, as well as a technical analysis of a requirement that the system permit retrieval of the waste for some period of time. The final paper discusses studies under way to investigate technical alternatives or complements to the mined geologic disposal system. Titles of the presented papers are: (1) Waste Isolation System; (2) Waste Isolation Economics; (3) BWIP Technical Baseline; (4) Criticality Considerations in Geologic Disposal of High-Level Waste; (5) Retrieving Nuclear Wastes from Repository; (6) NWTS Programs for the Evaluation of Technical Alternatives or Complements to Mined Geologic Repositories - Purpose and Objectives

  16. systems

    Directory of Open Access Journals (Sweden)

    Alexander Leonessa

    2000-01-01

    Full Text Available A nonlinear robust control-system design framework predicated on a hierarchical switching controller architecture parameterized over a set of moving nominal system equilibria is developed. Specifically, using equilibria-dependent Lyapunov functions, a hierarchical nonlinear robust control strategy is developed that robustly stabilizes a given nonlinear system over a prescribed range of system uncertainty by robustly stabilizing a collection of nonlinear controlled uncertain subsystems. The robust switching nonlinear controller architecture is designed based on a generalized (lower semicontinuous Lyapunov function obtained by minimizing a potential function over a given switching set induced by the parameterized nominal system equilibria. The proposed framework robustly stabilizes a compact positively invariant set of a given nonlinear uncertain dynamical system with structured parametric uncertainty. Finally, the efficacy of the proposed approach is demonstrated on a jet engine propulsion control problem with uncertain pressure-flow map data.

  17. Prevención y cuidados en úlceras por presión: ¿Dónde estamos? Prevention and care in pressure ulcers: Where are we?

    Directory of Open Access Journals (Sweden)

    Juan Ángel Hernández Ortiz

    2009-09-01

    Full Text Available Diversos estudios han explorado el grado de conocimiento (y su posterior puesta en práctica que posee el personal de enfermería sobre las recomendaciones relacionadas con la prevención y el tratamiento adecuado de las úlceras por presión que aparecen desarrolladas de manera sistemática en guías y manuales de sociedades internacionales y de España. Los resultados hallaron lagunas en los conocimientos referidos y deficiencias en su aplicación. Este trabajo pretende comprobar en qué situación nos encontramos los profesionales de enfermería del Complejo Hospitalario de Jaén (perteneciente a la red sanitaria pública andaluza, con respecto al conocimiento (a, frecuencia de utilización de las directrices recomendadas en la práctica asistencial (b, existencia de factores profesionales o de formación que puedan influir en el nivel de conocimiento y en su puesta en práctica (c; todo ello para ubicar los cuidados que prestamos comparando los resultados con investigaciones previas. La metodología fue descriptiva transversal. La recogida de datos se realizó a través de un cuestionario validado. Los resultados obtenidos son totalmente equiparables con los publicados tanto en España, como a nivel internacional.Several studies have explored the knowledge (and its subsequent implementation that owns the nursing staff on the recommendations relating to prevention and treatment of pressure ulcers, which are developed systematically in manuals and guides international companies and our country. The results found gaps in knowledge and related deficiencies in its application. This work aims to verify that we are the professional status of Nursing in Hospital de Jaén (belonging to the Andalusian public health system with respect to knowledge a frequency of use of the guidelines recommended in clinical practice, b existence of training or professional factors that may influence the level of knowledge and its implementation, and c to locate all

  18. Status of NDE research in the US-contributions of NDE to reactor safety and implementation of NDE technology

    Energy Technology Data Exchange (ETDEWEB)

    Ammirato, F. [EPRI, Charlotte, NC (United States)

    1999-08-01

    Power plant designers, plant owners, and regulators have developed inservice inspection (ISI) programs as part of their comprehensive approach to ensuring nuclear safety. This paper examines the role of ISI in reactor safety through several examples drawn from recent industry initiatives to address implementation of effective examination technology for nuclear power plant piping, and BWR and PWR reactor pressure vessels. These examples also illustrate the importance of well designed performance demonstration activities to support application of effective ISI. Finally, the efforts required to implement effective ISI technology for field inspection is addressed. (orig./DGE)

  19. Surgical Nondestructive Evaluation (SuNDE)

    Science.gov (United States)

    2011-07-01

    on a moveable pedestal) demonstrated during the program visit to CMU.......................................................45 APPENDIX LIST OF... bridge inspection, and tank inspection. The CMU research group has constructed a variety of highly articulated snake robots, which can exploit their...visit to CMU. The locomoting or free crawling snake (on the left) is observed climbing a pole. The surgical type snake on a moveable pedestal (on the

  20. Siserände rahvuserinevused / Alis Tammur

    Index Scriptorium Estoniae

    Tammur, Alis

    2003-01-01

    Uuringu tulemustest selgus, et eestlaste rändeaktiivsus oli 1990. aastatel oluliselt suurem kui mitte-eestlastel. Kui eestlaste rändes valitses linnastumine, siis mitte-eestlaste vastulinnastumine on uus protsess ja näitab, et nende asustusala on Eestis laienemas. Tabelid. Diagramm. Kaardid

  1. Ford motor company NDE facility shielding design

    International Nuclear Information System (INIS)

    Metzger, R. L.; Van Riper, K. A.; Jones, M. H.

    2005-01-01

    Ford Motor Company proposed the construction of a large non-destructive evaluation laboratory for radiography of automotive power train components. The authors were commissioned to design the shielding and to survey the completed facility for compliance with radiation doses for occupationally and non-occupationally exposed personnel. The two X-ray sources are Varian Linatron 3000 accelerators operating at 9-11 MV. One performs computed tomography of automotive transmissions, while the other does real-time radiography of operating engines and transmissions. The shield thickness for the primary barrier and all secondary barriers were determined by point-kernel techniques. Point-kernel techniques did not work well for skyshine calculations and locations where multiple sources (e.g. tube head leakage and various scatter fields) impacted doses. Shielding for these areas was determined using transport calculations. A number of MCNP [Briesmeister, J. F. MCNPCA general Monte Carlo N-particle transport code version 4B. Los Alamos National Laboratory Manual (1997)] calculations focused on skyshine estimates and the office areas. Measurements on the operational facility confirmed the shielding calculations. (authors)

  2. German NDE within PISC-II program

    International Nuclear Information System (INIS)

    Deuster, G.; Schmuelling, W.

    1987-01-01

    Within PISC-I, which was finished at the end of the seventies, three uncladded 200 mm thick plates were available. In this program ten European countries were participating. The test specimens came out of the American HSST-program. A series of testing according to the ASME-procedure were performed and in addition several alternative techniques. The manufacturing defects dominated but were unrealistic large. There was a lack of small cracklike defects. The PISC-II program was initiated in the early eighties with participation of twelve European countries and in addition USA, Japan and Canada. A lot of realistic service induced cracklike defects were available especially what concerned their position and size. (orig.)

  3. Ford Motor Company NDE facility shielding design.

    Science.gov (United States)

    Metzger, Robert L; Van Riper, Kenneth A; Jones, Martin H

    2005-01-01

    Ford Motor Company proposed the construction of a large non-destructive evaluation laboratory for radiography of automotive power train components. The authors were commissioned to design the shielding and to survey the completed facility for compliance with radiation doses for occupationally and non-occupationally exposed personnel. The two X-ray sources are Varian Linatron 3000 accelerators operating at 9-11 MV. One performs computed tomography of automotive transmissions, while the other does real-time radiography of operating engines and transmissions. The shield thickness for the primary barrier and all secondary barriers were determined by point-kernel techniques. Point-kernel techniques did not work well for skyshine calculations and locations where multiple sources (e.g. tube head leakage and various scatter fields) impacted doses. Shielding for these areas was determined using transport calculations. A number of MCNP [Briesmeister, J. F. MCNPCA general Monte Carlo N-particle transport code version 4B. Los Alamos National Laboratory Manual (1997)] calculations focused on skyshine estimates and the office areas. Measurements on the operational facility confirmed the shielding calculations.

  4. EXPLORING THE THEME OF DEATH IN KADI BURHANEDDIN’S POETRY KADI BURHANEDDİN’İN ŞİİRİNDE ÖLÜM TEMİ VE ECEL KAVRAMINA BİÇİMSEL YAKLAŞIM

    Directory of Open Access Journals (Sweden)

    İlyas YAZAR

    2009-09-01

    Full Text Available When the theme of death is took into consideration by the globe it is a common theme in all literature. The death has an equal historic past as of humans on the globe. During the history of humans especially of different religions and doctorines, philosophers and artists have took this theme into consideration and has made a place for itself in every culture. Before this theme has took place in the Turkish culture and after Islam the Muslim Council champer has used this in a large perspective to start off with death, the and loneliness are ways of describing this theme. Until the start of the Divan Literature which we can say is the start of the 15th century the existence of the line of poetry has portrayed coldness to me interlocutor. The poems of Kadı Burhaneddin on the theme of death will take into consideration the concept of the death and will be on the way the poems approach the theme of death. Ölüm teması, evrenselliği dikkate alındığında bütün edebiyatlarda işlenen ortak bir temadır. İnsanlığın evrendeki varlığıyla eşit bir geçmişe sahip olan ölüm; yine insanlık tarihi boyunca, başta çeşitli dinler ve doktrinler olmak üzere; düşünürler, âlimler ve sanatçılar tarafından mercek altına alınarak her toplumun kültür düzleminde, kendine bir yer edinmiştir. İslam öncesi Türk kültüründe de çeşitli inançlar içinde yer bulan bu tem, İslamiyet sonrası teşekkül etmeye başlayan Divan şiirinde de geniş biçimde kullanılmaktadır. Başta ölüm ve ecel olmak üzere, fenâ, âhir, son, yokluk, vuslat, öte gibi çeşitli kavramlarla ifade edilen bu hakikat, Divan edebiyatının kuruluş devresi diyebileceğimiz 15.yüzyıla kadarki süreçte de, yine mısralardaki varlığıyla muhataplarına soğukluğunu hissettirmeye devam etmiştir. Makalemizde Kadı Burhaneddin'in şiirlerinde ölüm temiyle ilgili yaklaşımlar ve Kadı Burhaneddin’in ecel kavramına bakışı değerlendirilecektir.

  5. Josephinische Bibliothek und medizinhistorische Bestände der Universitätsbibliothek der Medizinischen Universität Wien [The Josephinian Library and the medical-historic stock of the University Library of the Medical University of Vienna

    Directory of Open Access Journals (Sweden)

    Albrecht, Harald

    2012-09-01

    Full Text Available [english] The University Library of the Medical University of Vienna, founded in 2004, is the most extensive medical library in Austria. It possesses an outstanding medical-historic stock which is basically stored in its Branch Library of Medical History. This unique stock also is a historical source itself because it represents the development of the supply of the Medical Faculty of Vienna, Viennese hospitals and medical societies with scientific literature and information during the last centuries. The brunch library contains several remarkable special-collections such as the Josephinian Library, the Library of Neurology (Obersteiner-Library, the Library of the Society of Physicians in Vienna or the Library of the Austrian Association of Oral and Maxillofacial Surgery.In order to deal with its own history the University Library runs a provenance-research project to identify expropriated goods transferred to its stock during the Nazi-regime and restores them to their rightful owners. It also runs a weblog-series “Displaced 1938”, which is about displaced members of the Medical Faculty of Vienna during World . Currently it establishes a bio-bibliographical online-portal about exponents of the so called “Vienna Medical School(s” between 1750 and 1950 as well as an online bookplate database.To improve the access to large parts of the stock the ancient card indexes got digitalized (including OCR-reading and have been online since 2010. Supplementary the University Library of the Medical University of Vienna engages in the European cooperation on E-books on Demand (EOD.[german] Die Universitätsbibliothek der 2004 errichteten Medizinischen Universität Wien ist die größte medizinische Fachbibliothek in Österreich. Sie verfügt auch über bedeutende medizinhistorische Bestände, die überwiegend in der Zweigbibliothek für Geschichte der Medizin untergebracht sind und auch eine Quelle für die Entwicklung der Literatur- und

  6. KONYA MEVLÂNÂ MÜZESİ’NDE BULUNAN “12” ENVANTER NUMARALI KUR’AN-I KERİM’İN TEZHİP AÇISINDAN DEĞERLENDİRİLMESİ

    Directory of Open Access Journals (Sweden)

    Sennur Atalay Varol

    2016-10-01

    Full Text Available Medeniyetlerin tarih boyunca sahip oldukları değerlerin, gelecek nesillere aktarılmasında, en önemli öğelerden biri de sanattır. Kültürel değerlerimizden olan Gelenekli Sanatlarımız geçmişimizin, sanata olan yansımasıyla günümüze ulaşmıştır. Bir milletin kendine has sanatı, halkın kültür seviyesini ve sosyal hayatın sembollerini teşkil eder. Tezyîni sanatlar bu anlayış içinde doğup gelişerek günümüze kadar gelmiştir. Tezyîni sanatlar içinde yer alan tezhip sanatı da yüzyıllar boyunca geçen süreçte yaşadığı gelişmeleri ve değişmeleri göstermektedir. Bu çalışmanın konusunu “Konya Mevlânâ Müzesi’nde bulunan 1314 -15 tarihli, “12” envanter numaralı Kur’an-ı Kerim’in tezhipli sayfaları ve cilt kapakları” oluşturmaktadır. Kur’an-ı Kerim’in ketebe sayfasındaki bilgilerden bu eserin H.724 / M.1314-15 tarihinde, Karamanlı Beylerden Halil b. Mahmud için Katip İsmail b. Yusuf tarafından Konya’da yazıldığını ve Yakup b. Gazi el-Konevî tarafından tezhiplendiğini anlıyoruz. Eserin, gerek hat ve gerekse tezhibi, dönemin özelliklerini göstermesi ve tezhip sanatının tarihi seyrine ışık tutması bakımından önemlidir. Yazıldığı tarih itibariyle Beylik dönemine ait bir eser olmakla birlikte, Selçuklu döneminden hemen sonrasına ait olan bu eserin, önceki dönemin sanat anlayışıyla benzer üslupları bulunmaktadır. Eser; motif, desen ve üslup özellikleri bakımından incelenmiş olup, tasarımında etkili olan üslup özellikleri hakkında bilgi verilmiştir. Eserin tezyinatı, görsel malzemeler ve çizimlerle desteklenerek değerlendirilmiştir.

  7. Süleyman Demirel Üniversitesi'nde Bina İçi Radon Konsantrasyonlarının Nükleer İz Dedektörleri Kullanılarak Belirlenmesi

    Directory of Open Access Journals (Sweden)

    Mehmet Ertan KÜRKÇÜOĞLU

    2014-07-01

    Full Text Available Kapalı ortamlarda zamanla birikebilen radon gazı alfa parçacıkları yayımlar ve doğal radyoaktivitenin yarısından doğrudan sorumludur. Yüksek seviyede radon ihtiva eden ortamlarda radon ve radon ürünlerinin solunması, akciğerde kanser oluşumuyla bağdaştırıldığından radon konsantrasyonlarının kapalı mekanlar için belirlenmesi oldukça önemlidir. Bu çalışmada, 10 bin dekarlık alana sahip Süleyman Demirel Üniversitesi'nde üçü doğu yerleşkesi, ikisi batı yerleşkesinde olmak üzere toplam beş binadaki (Ziraat Fakültesi, Hukuk Fakültesi, Atatürk Spor Salonu, Mühendislik ve Mimarlık Fakültesi ile Bilgi İşlem Merkezi'ndeki atmosferik radon düzeyleri 92 ölçüm noktasına yerleştirilen CR-39 nükleer iz dedektörleri ile ölçülmüştür. Bu ölçümler yaklaşık 8 haftalık bir süre boyunca, 2010 yılı Mayıs ile Temmuz ayları arasında yapılmıştır. Dedektörlerin analizleri sonucunda; Mühendislik ve Mimarlık Fakültesi, Ziraat Fakültesi, Hukuk Fakültesi, Atatürk Spor Salonu ve Bilgi İşlem Merkezi'ndeki bina içi ortalama radon konsantrasyonlarının sırasıyla 259 Bq/m3, 279 Bq/m3, 265 Bq/m3, 324 Bq/m3 ve 173 Bq/m3 olduğu tespit edilmiştir. Ayrıca bu birimleri kullanan personel ve öğrencilerin radon nedeniyle alacakları tahmini doz miktarları hesaplanmış ve yıllık etkin doz eşdeğerlerinin, yine aynı sırayla 2,7 mSv, 2,9 mSv, 2,8 mSv, 3,4 mSv ve 1,8 mSv düzeyinde olduğu bulunmuştur.

  8. Anadolu Kültüründe Nazar ve Nazarlıklar: Safranbolu Örneği /Evil Eye and Amulets in Anatolian Culture: The Case of Safranbolu

    Directory of Open Access Journals (Sweden)

    Durmuş Gür

    2013-10-01

    Full Text Available Öz Bu araştırma, Anadolu kültüründe yer alan nazar inancı ve bu inancın somut bir yansıması olan nazarlıklarla ilgili günümüze ulaşan bazı örnekleri incelemektedir. Araştırma kapsamında, günümüzde Safranbolu’da bulunan sivil ve dini mimaride, özellikle su yapılarında görülen nazarlık çeşitleri, teknik, tür ve çeşitlilik açısından incelenmiş ve fotoğraflarla belgelenmiştir. Safranbolu’nun Bağlarbaşı, Kıranköy (Atatürk Mahallesi, Gümüş, Hacı Halil, Baba Sultan, Çeşme, Karaali, Çavuş Mahalleleri’ndeki mimari eserlerde bulunan nazarlıklar, araştırma konumuzun kaynağını oluşturmaktadır. Araştırmada önce nazar inancı ile ilgili yaklaşımlar ve bu inancın tarihi kökenleri incelenmiştir. Daha sonra nazara inanan insanların, kötü niyetli insanların bakışlarıyla yaydıkları olumsuz enerjiyi başka alanlara yönlendirebilmek amacıyla kullanmış oldukları nazarlıklar incelenmiştir. Kullanılan nazarlık çeşitleri sınıflandırılarak benzer uygulamalar aynı başlık altında incelenmiştir. Araştırmanın son kısmında ise bu nazarlıkların özelliklerini gösteren bir tablo ile birlikte kullanılan malzeme ve teknikler hakkında bilgi verilmiştir. Ayrıca, araştırma evreninde yer alan nazarlıklara ait bazı fotoğraflar araştırma sonuna eklenmiştir. Abstract This article examines the belief in evil eye in Anatolian culture and its concrete reflection, using amulets to defend oneself against it. The aim of this essay is to investigate and to certificate the types of amulets in civil and religious architecture, especially in water structures, in Safranbolu. In the study, the amulets existing in Baglarbasi, Kirankoy, Gumus, Haci Halil, Baba Sultan, Cesme, Karaali, and Cavus districts of Safranbolu is handled. The first part of the article examines the belief in evil eye and the historical basis of this belief. The second part examines the amulets used by the

  9. HEMŞİRE ÇİZELGELEMESİNDE ESNEK VARDİYA PLANLAMASI VE HASTANE UYGULAMASI (FLEXIBLE SHIFT PLANNING IN NURSE SCHEDULING AND AN APPLICATION OF THE HOSPITAL

    Directory of Open Access Journals (Sweden)

    Yücel ÖZTÜRKOĞLU

    2014-01-01

    Full Text Available ÖZ: Müşteri tatmininin her geçen gün daha da zorlaştığı hizmet sektörlerinde, işverenler sunulan hizmetin kalitesini arttırmak ve hizmetin devamlılığını sağlamak için yeni arayışlar içine girmekteler. İşverenler, müşteriden önce hizmeti sunan kişilerin memnuniyetini sağlayarak rekabet gücünü arttırma yollarına başvurmaktadırlar. Bu yollardan biri de çalışma sürelerinin esnekleştirilmesidir. Bu çalışmada, hizmet sektörleri arasında önemli bir yere sahip olan hastanelerde ki hemşire çizelgeleme problemi için tam sayılı matematiksel bir model oluşturulmuştur. Oluşturulan modelde, klasik çizelgeleme modellerinin aksine hemşirelerin işe başlama saatlerine esneklik getirilmiştir. Modelin başlıca amacı, hemşirelerin kendi tercihlerine göre haftalık çizelgelerinin oluşturulmasıdır. Oluşturulan model, gerçek veriler kullanılarak bir üniversite hastanesinin genel cerrahi bölümünde denenmiştir. Modelin, %99,6 oranında hemşire tercihlerini yerine getirdiği görülmektedir. Anahtar Kelimeler: Esnek Çalışma Saatleri, Hemşire Çizelgelemesi, Matematiksel Model, Tam Sayılı Programlama. ABSTRACT: In the service industry, customer satisfaction becomes more difficult with each passing day, employers have looked for new paradigms and ways to make service quality better and to keep service facilities reliable. Therefore, with the purpose of increasing their competitive power, employers give more importance to their employees who have direct relation with customers than they do to their customer. One of the new paradigms is make working hours flexible. In this study, an integer programming model is proposed for the nurse scheduling problem in the hospitals which are one of the most important service industries. On the contrary of classical nurse scheduling model, developed model has made flexible to starting time. The main aim of the model is make a schedule for nurses according to

  10. DOĞAL AFETLER ve TÜRK SİGORTA SEKTÖRÜNDE RİSK TRANSFERİ - NATURAL DISASTERS AND RISK TRANSFER IN THE TURKS INSURANCE SECTOR

    Directory of Open Access Journals (Sweden)

    Elif ÇEKİCİ

    2012-11-01

    Full Text Available Özet:İklim değişikliği nedeniyle dünyanın her yerindemeydana gelen doğal afetlerin şiddeti ve yarattığı hasarlarzamanla artmaktadır. Doğal afetler sonucundakarşılaşılabilecek risklerden korunmanın en iyi yolu sigortasektörünün güçlendirilmesidir. Çünkü doğal afetler öncedentahmin edilemediği için bu risklerden arınmak mümkündeğildir. Afetlerin hasar boyutu gittikçe büyümekte ve busigorta ve reasürans şirketleri için risk oluşturmaktadır.Dolayısıyla sigorta sektörünün bu riski transfer etmesigerekecektir. Bu çalışmada Türkiye’deki yangın ve doğal afetsigortası prim tutarlarının ve hasar prim oranlarının gelişimi,1986 – 2009 yılları arasındaki yangın ve doğal afet sigortasıprim tutarlarından ve hasar prim oranlarından oluşan zamanserisi ele alınarak incelenmiştir. 2011 yılı için yangın ve doğalafet sigortası prim tutarı tahmini Pegels’in üstel düzeltmetekniği ile yapılmış ve % 95 güven aralığı ile hasar primoranları için güven aralığı hesaplanmıştır.Abstract:Because of climate change, natural disastersoccurring all over the world and their compound effects areincreasing day by day. The best way of being protected fromthe possible risks that stem from natural disasters is toempower the insurance sector. Since the natural disasters arenot predictable, it is impossible to break free of those risks. Thesize of damage of disasters is increasing and this constitutes agreat deal of risk for insurance and reinsurance companies.As a consequence, the insurance sector should transfer thisrisk. In this article, the development of insurance premiums offire and natural disaster and damage premium amounts, arebeing examined by considering the time series of insurancepremiums of fire and natural disaster and rates of damagepremiums between the years of 1986-2009. For the year 2011,the estimate of fire and natural disaster and rates of damagepremium, are being

  11. Konaklama Sektöründe Büyük Veri Aracılığıyla Sektörel Rekabette Kültürel Farklılıkların Keşfi

    OpenAIRE

    Dirsehan, Taskın; Köse, Nurdan; Ercevik, Eylul; Ceylan, Sena

    2018-01-01

    2014-2016 yılları için Pazarlama Bilim Enstitüsü (MSI), “Veri Bakımından Zengin Ortamlarda Pazarlama Analitiğini Geliştirme” konusunu “Birinci Derecede Öncelikli” konu olarak belirlemiştir. Müşterilerin deneyimlerini inceleyerek onları anlamak, uzun dönemde kârlı müşteri ilişkileri oluşturabilmek için önemlidir. Konaklama sektöründe ziyaretçiler, deneyimlerini internetteki seyahat sitelerinde paylaşarak “büyük veri” olarak adlandırılan büyük miktarda veri yaratmaktadır. Eğer bu deneyimler ana...

  12. SYSTEM

    Directory of Open Access Journals (Sweden)

    K. Swarnalatha

    2013-01-01

    Full Text Available Risk analysis of urban aquatic systems due to heavy metals turns significant due to their peculiar properties viz. persis tence, non-degradab ility, toxicity, and accumulation. Akkulam Veli (AV, an urba n tropical lake in south India is subjected to various environmental stresses due to multiple waste discharge, sand mining, developmental activities, tour ism related activitie s etc. Hence, a comprehensive approach is adopted for risk assessment using modified degree of contamination factor, toxicity units based on numerical sediment quality guidelines (SQGs, and potentialecological risk indices. The study revealed the presence of toxic metals such as Cr, C d, Pb and As and the lake is rated under ‘low ecological risk’ category.

  13. Technology for SQUID systems for the application in magnetically disturbed environment. Final report

    International Nuclear Information System (INIS)

    Schultze, V.; Fritzsch, L.; Thrum, F.; Stolz, R.; Chwala, A.

    1996-06-01

    International available SQUID systems, as used for example in biomagnetic research, obtain high sensitivities for magnetic fields or magnetic fieldgradients. However, these systems were optimised for operation in magnetically shielded rooms. Goal of this project was to develop SQUIDs suppressing the external noise and therefore are able to operate without external shielding in normal environments. As a consequence, the required Nb/AlO x /Nb technology has also been developed. The resulting planar SQUID gradiometers as produced at the IPHT, reached a suppression of homogeneous fields up to 5 x 10 4 for a magnetic field sensitivity c , project. SQUID gradiometers, produced using YBCO technology, were successfully operated in non shielded eddy current NDE measurements in the lab. (orig.) [de

  14. Evaluation and technologic improvement of an enhanced imaging system

    International Nuclear Information System (INIS)

    Henry, D.

    1990-08-01

    Feature-based systems that combine imaging and signal analysis capabilities may be useful for nondestructive evaluation (NDE) of plant components. This report describes the metallurgical evaluation conducted to verify the performance of a feature-based system to discriminate intergranular stress corrosion cracking (IGSCC) from benign geometrical reflectors. The ultrasonic examination results were also evaluated by examination personnel trained in intergranular stress corrosion cracking (IGSCC) detection techniques. The welds were examined prior to their removal from the recirculation and Residual-Heat-Removal (RHR) piping systems of the Peach Bottom Atomic Power Plant, as described in the Phase 2 Interim Report issued in June 1989. In this phase of the program, a metallurgical evaluation was performed on piping system welds that were examined ultrasonically using a feature-based system for analysis. The feature-based system correctly identified crack, but incorrectly identified other features, e.g., root geometry and metallurgical interfaces, as cracks. While the results of the analysis by the feature-based system were not identical to the results of analysis by trained personnel, the overall performance of the feature-based system was comparable to that of the trained personnel. Based on the results of this program, the feature-based system may be useful as a supplementary method of identifying IGSCC indications. When used in conjunction with existing methods and techniques, it could improve the accuracy of IGSCC identification

  15. THE NAMES AND MARKINGS GIVEN TO THE HORSES ACCORDING THEIR COAT COLORS IN TURKISH CULTURE TÜRK KÜLTÜRÜNDE DONLARINA GÖRE ATLARA VERİLEN ADLAR VE NİŞANLARI

    Directory of Open Access Journals (Sweden)

    Salim KÜÇÜK

    2009-12-01

    rkçe döneminden farklı olarak Orta Türkçe dönemindeki yazılı eserlerde at donlarına ve nişanlarına daha fazla yer verildiği görülmüştür. Özellikle Divanü Lûgati’t-Türk bu konuda son derece zengin bir eserdir. Türkiye Türkçesi’nde ise Derleme ve Tarama Sözlükleri at donları ve nişanları yönünden Karahanlı dönemi eserlerine göre daha zengin bir yapı sergilemektedir. Türkiye Türkçesi bu yönüyle hem tarihî hem de çağdaş Türk lehçelerinden belirgin bir şekilde ayrılmaktadır.

  16. Saatleri Ayarlama Enstitüsü’nde Aile Temi Üzerinden Türk Modernleşmesinin Seyri Looking At The Turkish Modernisation Via Family Theme In Saatleri Ayarlama Enstitüsü

    Directory of Open Access Journals (Sweden)

    Hanife ÖZER

    2012-12-01

    ınmıştır. Romanın olay örgüsü, başkahraman Hayri İrdal’ın hatıralarına dayanır. Eserde tarih, ekonomi, bürokrasi, bilim, felsefe, hurafe, aile, kadın, Doğu, Batı vb. kavramlar, “eski-yeni” zihniyeti çerçevesinde ele alınmış, bu kavramların art alanlarında köklü değişmelerin çok süratli bir şekilde yaşandığına işaret edilmiştir. Roman Osmanlı İmparatorluğu’nun son dönemi ile Cumhuriyet’in ilk yarısını kapsayan bir süreci kurgulamış, bu süreç içinde de aile yapısının nasıl değiştiği gözler önüne serilmiştir. Yazar aile kurumundaki gelişmeleri veya değişmeleri, ailenin bağlı bulunduğu ve içinde bir çekirdek rolü üstlendiği toplumdaki gelişmelere paralel bir şekilde almıştır. Yine farklı nesillere mensup aileler arasındaki farklı anlayış ve eğilimleri toplumsal gelişmelerle bazen doğrudan, bazen de dolaylı olarak ilintilediği görülmektedir. Bilindiği gibi, toplumsal yapıdaki her gelişmenin yahut da değişmenin eski bir örneği, bu örneğin bazı etkenlerle yeniyi hazırlayan koşulları, yine bu koşulların etkisi ile yeniye doğru gelişen eğilim ve yeninin, eskinin yerini alması süreci söz konusudur. Saatleri Ayarlama Enstitüsü’nde de böyle bir sürecin varlığından söz edilebilir. Romanda bu süreç içinde Osmanlı Türk ailesinin; geleneksel yapıya sahip olanlar, eskiye bağlı ama aynı zamanda eskinin baskısını yaşayan, bu bakımdan da yeniye geçiş konumunda bulunanlar ile yeninin, modernin yansıtıcısı aileler şeklinde üç grupta ele alındığını söylemek mümkündür.

  17. AB ÜLKELERİNDE KAYIT DIŞI İSTİHDAMLA MÜCADELEDE ALTERNATİF BİR METOD OLARAK SOSYAL DİYALOG MEKANİZMASI

    Directory of Open Access Journals (Sweden)

    Eyüp Serdar ERDOĞAN

    2015-08-01

    diyalog mekanizmalarına dair bazı iyi uygulama örnekleri ele alınmıştır. Ayrıca özel sosyal diyalog mekanizması uygulamaları olarak Almanya’daki “Centilmenlik Anlaşması” ve Bulgaristan’da hayata geçirilen “Sosyal Diyalogla Belirlenen İnşaat Sektöründe Prim Eşikleri Uygulaması” na yer verilmiştir. Özellikle tekstil, imalat veya inşaat gibi kayıt dışı istihdamın yoğun olduğu sektörlerde sorunun çözümü açısından AB’deki iyi uygulamalarına benzer sektörel sosyal diyalog girişimlerinin ciddi bir alternatif olduğu sonucuna ulaşılmış ve bu bağlamda bazı öneriler yapılmıştır.

  18. Anabolik Steroidlerin Genotoksik ve Sitotoksik Etkilerinin İnsan Periferal Lenfosit Kültüründe Mikronükleus Test Tekniğiyle Araştırılması

    Directory of Open Access Journals (Sweden)

    Deniz ALTUN ÇOLAK

    2016-10-01

    Full Text Available Özet. Spor tarihi boyunca genç yaştaki bir çok sporcunun doping amacıyla anabolik-androjenik steroidleri yoğun olarak kullandığı bilinmektedir. Bu çalışmayla, kullanımı yasaklanmış olsa da yapılan araştırmalarda illegal olarak halen sıkça kullanılmakta olan Nandrolone Decanoate (Deca-durabolin® ve Stanozolol (Winstrol doping maddelerinin olası genotoksik, mutajenik ve sitotoksik etkilerinin insan kan kültüründe in vitro mikronükleus testi ile belirlenmesi amaçlanmıştır. Bu amaçla doping maddelerinin farklı konsantrasyonları (1, 10, 25, 50, 75 ve 100 mM hazırlanmış ve kan kültürüne uygulanmıştır. Genotoksik etki için mikronükleus frekansları, sitotoksik etki için ise Nükleer Bölünme İndeksi (NBİ hesaplanmıştır. Elde edilen veriler, çözücü olarak kullanılan dimetil sülfoksit (DMSO ile hazırlanan negatif kontrol grubuyla ve genotoksik etkisi çok iyi bilinen Etil metansülfonat (EMS ile hazırlanmış pozitif kontrol grubuyla karşılaştırılmıştır. Bu sonuçlara göre; çalışmamızda kullandığımız doping maddelerinden Nandrolone Decanoate özellikle son iki konsantrasyonda (75 ve 100 mM  insan periferal lenfositlerinde mikronükleus frakansını istatistiksel olarak anlamlı (p< 0,05 bir şekilde artırmıştır. Ayrıca NBİ oranlarına bakıldığında da özellikle son iki konsantrasyonda kontrol grubuna göre önemli düşüşler tespit edilmiştir. Bununla birlikte diğer doping maddesi olan Stanozolol ise sadece son konsantrasyonda (100 mM anlamlı artışlara neden olmuşken NBİ değerini etkilememiştir. Tüm elde ettiğimiz sonuçlardan her iki doping maddesinin de yüksek konsantrasyonlarda genotoksik ve sitotoksik etkiler yaratabileceği bu nedenle kullanımlarının tehlikeli olabileceği sonucuna ulaşılmıştır.Anahtar Kelimeler: Genotoksisite, Lenfosit kültürü, Mikronükleus, Nandrolone Decanoate, Stanozolol Abstract. Throughout the sports history

  19. Improvement of a portable high-energy radiographic inspection system: Final report

    International Nuclear Information System (INIS)

    Owen, R.D.

    1987-02-01

    This report describes the development of miniaturized linear accelerator (MINAC) technology, including descriptions of all major developments sponsored by EPRI subsequent to previously sponsored work. In addition, this report describes MINAC-related developments in both real-time x-ray imaging and radiographic image data processing systems which were sponsored by EPRI concurrently. The objectives of this program have been to achieve modifications identified as desirable improvements to the basic ''MINAC 3'' equipment; to expand the range and effectiveness of MINAC applications through design improvements, achievement of wider energy/output capabilities, and the development of suitable imaging and digital processing technologies; and to provide technical information on high-energy radiographic equipment useful to scientists, educators, institutions, NDE technicians and others who may benefit from detailed information on the special equipment. Program, equipment and technical descriptions are followed by conclusions and recommendations for future work

  20. Kahvehane, Restoran ve Kafe Çalışan ve Müşterilerinin İkram Sektöründe Sigara İçilmesinin Yasaklanması Konusundaki Görüşleri

    Directory of Open Access Journals (Sweden)

    Hilal Özcebe

    2012-04-01

    tan %18’e, çalışan ve işletme sahipleri arasında ise %73’ten %22’ye azalmıştır. Sonuç: Tütün kontrolü yasası ikram sektöründe hem çalışan hem de müşterilerin desteklediği bir yasa haline gelmiştir. Yasanın sigara kullanımını azaltmaya katkısı olmaya başlamıştır. Anahtar Kelimeler: Sigara içme yasağı, görüşler Opinions of the Customers and Employees of Cafes and Restaurants on Smoke Free Implementations Objective: This descriptive study investigates the opinions of the customers and employees of café and restaurant on the implementation of smoke-free rules/ laws.Methods: The study was conducted in 8 provinces in various geographical parts of the country. A total of 160 workplaces (restaurants, cafes, tea-houses were included in the study, with 20 workplaces in each of the provinces. The first set of data was collected 2-3 months prior to the implementation of the comprehensive smoke-free policy and the second set of data 4 months after the implementation. Two customers at each of the venues were interviewed. Therefore the total number of customers participating was 316 and 320 at the first and second surveys. Similarly 315 and 319 persons (workers and owners were interviewed during the first and second surveys. Results: The percentage of daily smokers were 66.2 and 31.9 among the workers and 55.4 and 32.0 among the customers before and after the implementation respectively. This finding may indicate that more non-smokers were attending the tea-coffee houses and restaurants. Almost all of the non-smoking customers were in favor of the smoke-free implementation, saying that smoke-free venues are more pleasant and smoke free implementation protects the health of the workers. Smoking customers supported the smoke free implementation as well. Among the workers and the owners, the percentages on both the pleasant venue and protection of worker’s health were much higher. The opinion that implementation of the smoke free policy would

  1. GJJ RO O S. B IO G RA FIEË VANSEWENT IE NDE EN AGT IE NDE ...

    African Journals Online (AJOL)

    Test

    Keyserskindt bedien is. Hierdie lang tyd van twintig maande het vol- gens die dagregister van die Kommandeur n geestehke agteruitgang veroorsaak. sodat nou slegs vier-en-twintig persone aan die nag- maal deelgeneem het, hoewel daar 'n groot garnisoen was en baie burgers en boere. Maar toe ds. Van Arckel op 25 ...

  2. Development of computed tomography system and image reconstruction algorithm

    International Nuclear Information System (INIS)

    Khairiah Yazid; Mohd Ashhar Khalid; Azaman Ahmad; Khairul Anuar Mohd Salleh; Ab Razak Hamzah

    2006-01-01

    Computed tomography is one of the most advanced and powerful nondestructive inspection techniques, which is currently used in many different industries. In several CT systems, detection has been by combination of an X-ray image intensifier and charge -coupled device (CCD) camera or by using line array detector. The recent development of X-ray flat panel detector has made fast CT imaging feasible and practical. Therefore this paper explained the arrangement of a new detection system which is using the existing high resolution (127 μm pixel size) flat panel detector in MINT and the image reconstruction technique developed. The aim of the project is to develop a prototype flat panel detector based CT imaging system for NDE. The prototype consisted of an X-ray tube, a flat panel detector system, a rotation table and a computer system to control the sample motion and image acquisition. Hence this project is divided to two major tasks, firstly to develop image reconstruction algorithm and secondly to integrate X-ray imaging components into one CT system. The image reconstruction algorithm using filtered back-projection method is developed and compared to other techniques. The MATLAB program is the tools used for the simulations and computations for this project. (Author)

  3. A prototype tap test imaging system: Initial field test results

    Science.gov (United States)

    Peters, J. J.; Barnard, D. J.; Hudelson, N. A.; Simpson, T. S.; Hsu, D. K.

    2000-05-01

    This paper describes a simple, field-worthy tap test imaging system that gives quantitative information about the size, shape, and severity of defects and damages. The system consists of an accelerometer, electronic circuits for conditioning the signal and measuring the impact duration, a laptop PC and data acquisition and processing software. The images are generated manually by tapping on a grid printed on a plastic sheet laid over the part's surface. A mechanized scanner is currently under development. The prototype has produced images for a variety of aircraft composite and metal honeycomb structures containing flaws, damages, and repairs. Images of the local contact stiffness, deduced from the impact duration using a spring model, revealed quantitatively the stiffness reduction due to flaws and damages, as well as the stiffness enhancement due to substructures. The system has been field tested on commercial and military aircraft as well as rotor blades and engine decks on helicopters. Field test results will be shown and the operation of the system will be demonstrated.—This material is based upon work supported by the Federal Aviation Administration under Contract #DTFA03-98-D-00008, Delivery Order No. IA016 and performed at Iowa State University's Center for NDE as part of the Center for Aviation Systems Reliability program.

  4. Benzer Sektörde Faaliyet Gösteren Kurumların Kuruluş Tarihi Sıralamasının Kurum Kültüründe Ortaya Çıkan Yansımaları: Alfred Adler Üzerinden Coca Cola ve Pepsi Kurumları Üzerine Bir Değerlendirme

    OpenAIRE

    KARADOĞAN DORUK, Sevimece; SAVAŞ, Sezgin

    2017-01-01

    Çalışma, kurumların kuruluş sırası ile kurum kültürü oluşumunun bağlantısını Alfred Adler’in kavramsal yaklaşımı üzerinden ele alarak değerlendirmeyi amaçlamaktadır. Bu amaçtan hareketle çalışmanın ilk bölümünde Alfred Adler’in düşünsel pratiği ortaya konulurken, söz konusu araştırmacının özellikle doğum sırası sınıflandırması ve kompleks kavramına odaklanılmaktadır. Aynı doğrultuda ikinci bölümde de kurum kültürünün oluşumu ve bu oluşum sürecinde doğum sırası (kuruluş sırası) ve kompleksler...

  5. HIZLA ARTAN ENDÜSTRİYEL ROBOTLARIN ÜRETİM SÜREÇLERİNDE YARATTIĞI DEĞİŞİMLER VE TÜRKİYE İŞGÜCÜ PİYASASINDA YARATACAĞI OLASI ETKİLERİN DEĞERLENDİRİLMESİ

    OpenAIRE

    Akın, Ömer

    2017-01-01

    Türkiye’nin iktisadi büyüme ivmesinin son yıllarda yavaşlaması istihdam artışıbakımından önemli bir engel olduğu gibi reel ücretler üzerinde de baskıoluşturmaktadır. 2000’li yıllardaki yüksek büyüme oranlarının yeniden yakalanmasıönünde çeşitli konjonktürel ve yapısal engeller bulunmaktadır. Siyasive ekonomik öngörülebilirliğin azaldığı önümüzdeki dönemde, yatırımlarınsektörel ve bölgesel devlet teşvikleriyle canlandırılmaya çalışıldığı gözlemlenmektedir.Ne var ki, yeni yatırımların istihdam ...

  6. İşyeri Şiddetinin Çalışanların Tükenmişlik Düzeyi Üzerine Etkisi: Sağlık Sektöründe Bir Uygulama

    OpenAIRE

    DURSUN, Salih

    2012-01-01

    Çalışma hayatında karşılaşılan en önemli sorunlardan biri işyeri şiddetidir. Bu çalışmanın amacı, sağlık sektöründe işyerindeki şiddet davranışlarının fiziksel, sözel ve cinsel taciz boyutlarını ortaya koyarak, bu tür şiddet eylemlerine maruz kalmanın veya tanık olmanın çalışanların tükenmişlik düzeyi üzerine etkilerini araştırmaktır. Araştırma bir kamu hastanesinde farklı görevlerde (doktor, hemşire, hasta bakıcı vb.) çalışan toplam 161 kişi üzerinde gerçekleştirilmiştir. Katılımcıların orta...

  7. GSM SEKTÖRÜNDE HİZMET KALİTESİ VE DİĞER DEĞİŞKENLER ARASINDAKİ İLİŞKİLERİN YAPISAL EŞİTLİK MODELİ İLE ANALİZİ

    OpenAIRE

    TAYYAR, Nezih; IŞIK, Sultan

    2013-01-01

    Bu çalışmada, hizmet kalitesi, fiyat, imaj, algılanan değer, değiştirme maliyeti, memnuniyet ve bağlılık arasındaki doğrudan ve dolaylı ilişkiler yapısal eşitlik modeli kullanılarak analiz edilmiştir. Çalışma GSM sektöründe uygulanmıştır. Bunun nedeni bu sektörün büyümekte ve halen gelişmekte olan bir sektör olması ve daha önceden bu sektörde yapılan benzer çalışmaların sayısının az olmasıdır. Çalışmanın verileri Uşak Üniversitesi İktisadi ve İdari Bilimler Fakültesi öğrencilerinden elde edil...

  8. KÖPEKLERİN GIDA ALERJİLERİNİN TEDAVİSİNDE STEROİDAL VE NONSTEROİDAL ANTİENFLAMATUVAR İLAÇLARIN KLİNİK ETKİNLİKLERİNİN KARŞILAŞTIRILMASI

    OpenAIRE

    Maden, Mehmet; Sevinç, Mutlu; Or, Erman

    1997-01-01

    Bu araştırmanın amacı, gıda alerıısinın tedavisınde steroidal ve nonsteroıdal antıenflamatuvar ilaçların klınik et­kinli�ının karşılaştırılmasıdır. Bu amaçla 11'i steroid. 13'0 nonsteroid antlenflamatuvar ilaç uygulanan gruplarda olmak uzere toplam 24 gıda alerjilı köpek kullanıldı. Köpekların tedavı öncesi klinik muayeneleri yapıldı, tüm köpekların yaş, ırk ve cınsıyelleri ile deri lazyonların ın (kaşıntı, alopesı. erıtem. hıperpıgmentasyon, papüller, püstüller. kabuklanma, sa­borh...

  9. IDEOLOGICAL APPROACH TO THE TEXTS OF FOLK LITERATURE AT THE PERIOD OF USSR: IN THE CONTEXT OF ALANKAY BATIR HALK EDEBİYATI METİNLERİNE SOVYETLER BİRLİĞİ DÖNEMİNDE İDEOLOJİK YAKLAŞIM: ALANKAY BATIR ÖRNEĞİ

    Directory of Open Access Journals (Sweden)

    Bülent BAYRAM

    2009-12-01

    Full Text Available Folk Literature was under the ideologic pressure during the USSR period. From time to time it was prohibited to publish some of the literary works. Some of the works were published after they had undergone some change with the excuse that they convey idiology opposite to that of the USSR. Some of the chapters were dropped out of the literary Works: for example, this kind of changes have been done to the Epic of Alankay Batır of the Kazak Turks. Halk edebiyatı eserleri Sovyetler Birliği’nde ideolojik baskılara maruz kalmıştır. Zaman zaman bazı eserlerin yayınlanması tamamen yasaklanmıştır. Bazı eserler de Sovyet ideolojisine ters düştüğü gerekçesiyle değiştirilerek yayınlanmıştır. Bazı bölümler eserlerden çıkarılmıştır. Kazak Türklerinin Alankay Batır destanında da bu tür oynamalar görülmektedir. Elde bulunan orijinal nüsha ile yayınlanan nüsha arasındaki farklılıklar bunu açıkça göstermektedir.

  10. CASTOR - Advanced System for VVER Steam Generator Inspection

    International Nuclear Information System (INIS)

    Mateljak, Petar

    2014-01-01

    From the safety point of view, steam generator is a very important component of a nuclear power plant. Only a thin tube wall prevents leakage of radioactive material from the primary side into the environment. Therefore, it is very important to perform inspections in order to detect pipe damage and apply appropriate corrective actions during outage. Application of the nondestructive examination (NDE) technique, that can locate degradation and measure its size and orientation, is an integral part of nuclear power plant maintenance. The steam generator inspection system is consisted of remotely controlled manipulator, testing instrument and software for data acquisition and analysis. Recently, the inspection systems have evolved to a much higher level of automation, efficiency and reliability resulting in a lower cost and shorter outage time. Electronic components have become smaller and deal with more complex algorithms. These systems are very fast, precise, reliable and easy to handle. The whole inspection, from the planning, examination, data analysis and final report, is now a highly automated process, which makes inspection much easier and more reliable. This paper presents the new generation of INETEC's VVER steam generator inspection system as ultimate solution for steam generator inspection and repair. (author)

  11. Sizing Performance of the Newly Developed Eddy Current System

    Energy Technology Data Exchange (ETDEWEB)

    Cho, Chan Hee; Lee, Hee Jong; Yoo, Hyun Ju; Moon, Gyoon Young; Lee, Tae Hoon [Korea Hydro and Nuclear Power Co., Ltd., Daejeon (Korea, Republic of)

    2013-10-15

    This paper describes the comparison results of sizing performance for two systems. The KHNP developed a new eddy current testing system for the inspection of steam generator tubing in domestic nuclear power plants. The equivalency assessment of the newly developed system with the EPRI-qualified system was already carried out. In this paper, the comparisons of depth-sizing performance for the artificial flaws between two systems were performed. The results show that the newly developed system is in good agreement with the qualified system. Therefore, it is expected that the newly developed eddy current system can be used for the inspection of steam generator tubing in nuclear power plants. There are some non-destructive examination (NDE) methods for the inspection of components in nuclear power plants, such as ultrasonic, radiographic, eddy current testing, etc. The eddy current testing is widely used for the inspection of steam generator (SG) tubing because it offers a relatively low cost approach for high speed, large scale testing of metallic materials in high pressure and temperature engineering systems. The Korea Hydro and Nuclear Power Co., Ltd. (KHNP) developed an eddy current testing system for the inspection of steam generator tubing in nuclear power plants. This system includes not only hardware but software such as the frequency generator and data acquisition-analysis program. The foreign eddy current system developed by ZETEC is currently used for the inspection of steam generator tubing in domestic nuclear power plants. The equivalency assessment between two systems was already carried out in accordance with the EPRI steam generator examination guidelines.

  12. İŞLETME YÖNETİMİNDE MUHASEBE BİLGİ SİSTEMİ, İÇ KONTROL, VERİMLİLİK İLİŞKİSİ VE ÖNEMİ

    OpenAIRE

    KARACAER, Semra; İBRAHİMOĞLU, Nurettin

    2018-01-01

    Improvements in technology and acceleration of national and international competition, increase the importance of efficiency for organizations. In efficiency of organizations, the impact of dependable, correct and appropriate information can not be denied. Information like that, can be obtained by accounting information system and efficent internal control. Accounting information system, is related with disciplines like, accounting, management and organization, internal control, procuring inf...

  13. ALIŞVERİŞ MERKEZLERİNİN MARKA KİŞİLİKLERİNİN KARŞILAŞTIRILMASI, İSTANBUL İLİNDE BİR UYGULAMA-COMPARISION on BRAND PERSONALITY of SHOPPINGCENTERS, A PRACTISE in ISTANBUL CITY

    Directory of Open Access Journals (Sweden)

    Şakir ERDEM

    2012-06-01

    Full Text Available Perakendecilik sektöründe yer alan Galleria ve Akmerkez alışveriş merkezleri marka kişiliklerinin karşılaştırılmasını yapmak ve tüketicilerin alışveriş merkezi tercihlerinde alışveriş merkezlerine atfettiği kişilik boyutlarını ve özelliklerini ortaya çıkarılabilmek amacıyla J. Aaker’ın 1997’de geliştirdiği beş ana marka kişiliği boyutu ve bu boyutların altında toplanan kişilik özellikleri temel alınmıştır. Marka kişiliğine ilişkin literatür taraması yapılmış; araştırma yöntemi olarak nitel araştırma ve nicel araştırma yöntemlerinin birleşmesinden meydana gelen karma araştırma yaklaşımı benimsenmiştir. Nitel veri toplanma araçlarından olan odak grup görüşmesinden faydalanılarak, nicel araştırmanın anketlerinin oluşturulmasında yararlı olabilecek bilgiler ve nicel araştırma örneklem yapısı ve yöntemine ışık tutan bilgiler elde edilmesi sağlanmıştır.  Nicel araştırmada veri toplama aracı olarak anket yöntemi uygulanmış, analiz yapılmaya uygun 272 adet anket elde edilmiştir. Anket sonuçları SPSS programı yardımıyla kodlanmış, verilerin frekans ve yüzde dağılımları verilerek faktör analizleri, güvenirlik analizleri ve T-testi yapılmıştır.  Araştırma sonucunda, alışveriş merkezi sektöründe marka kişiliğine dair dört boyut elde edilebilmiş; elde edilen dört boyut Galeria ve Akmerkez alışveriş merkezleri arasında karşılaştırılmıştır.- The present research aims to compare brand personalities of Galeria and Akmerkez shopping centers and to examine the brand personality traits and dimensions that consumers refer on shopping centers preferences. Research based on J. Aaker’s five dimensions of brand personality and the traits. We looked over the literature of brand personality. This research included pluralistic methodology: First, focus groups method was used to take qualitative research’s survey, sampling

  14. The Visibility of Scholarly Knowledge: Awareness for Open Access in Hacettepe University Bilimsel Bilginin Görünürlüğü: Hacettepe Üniversitesi’nde Açık Erişim Farkındalığı

    Directory of Open Access Journals (Sweden)

    Korhan Levent Ertürk

    2010-03-01

    Full Text Available The scholars begin to place their works into the open repositories or open access journals as well as their personal web sites. In the international arena, the open repositories contain a total of 14,000 Turkey-based scholarly contents. The focus of this study is to determine the level of awareness for open access concept of scholars in Hacettepe University. An electronic questionnaire was conducted to scholars. The data were collected through questionnaire from full time academic staff member in Hacettepe University. It was found that 50% of scholars are aware of the open access concept and 92% of the scholars are willing to place their works into the institutional repository of their university. According to questionnaire study result, different types of works such as articles and assertions can be placed in the institutional open repositories in Turkey and their functionality can be increased in a short time. Bilimsel iletişimin en önemli paydaşı olan bilim insanları, bilimsel bilgilerinin görünürlüğünü artırabilmek için bilimsel eserlerini Web sayfalarında ve/veya açık erişim arşivlerinde depolamaya ya da açık erişim dergilerinde yayınlamaya başlamışlardır. Uluslararası açık erişim arşivlerinde yaklaşık 14 bin Türkiye kaynaklı bilimsel içerik bulunmaktadır. Bu çalışma Hacettepe Üniversitesi’ndeki bilim insanlarının açık erişim farkındalığını belirlemek, kurumsal açık arşivlerin etkin kullanımını konusundaki görüşlerini ortaya çıkarmak amacıyla yapılmıştır. Veriler, Hacettepe Üniversitesi’nde tam zamanlı çalışan öğretim üyelerinden elektronik anket yoluyla elde edilmiştir. Bulgulara göre öğretim üyelerinin en azından yarısının (%50 açık erişim farkındalığına sahip olduğu tespit edilmiştir. Farkındalığı olan öğretim üyeleri yüksek bir çoğunlukla (%92 yayınlarının kendi üniversitelerinde yapılandırılabilecek kurumsal açık ar

  15. Consistent Practices for Characterizing the Detection Limits of Fracture Critical Metallic Component Inspection Systems

    Data.gov (United States)

    National Aeronautics and Space Administration — NASA-STD-5009 requires that successful flaw detection by NDE methods be statistically qualified for use on fracture critical metallic components using Probability of...

  16. Space Shuttle Program (SSP) Orbiter Main Propulsion System (MPS) Gaseous Hydrogen (GH2) Flow Control Valve (FCV) Poppet Eddy Current (EC) Inspection Probability of Detection (POD) Study. Volume 1

    Science.gov (United States)

    Piascik, Robert S.; Prosser, William H.

    2011-01-01

    The Director of the NASA Engineering and Safety Center (NESC), requested an independent assessment of the anomalous gaseous hydrogen (GH2) flow incident on the Space Shuttle Program (SSP) Orbiter Vehicle (OV)-105 during the Space Transportation System (STS)-126 mission. The main propulsion system (MPS) engine #2 GH2 flow control valve (FCV) LV-57 transition from low towards high flow position without being commanded. Post-flight examination revealed that the FCV LV-57 poppet had experienced a fatigue failure that liberated a section of the poppet flange. The NESC assessment provided a peer review of the computational fluid dynamics (CFD), stress analysis, and impact testing. A probability of detection (POD) study was requested by the SSP Orbiter Project for the eddy current (EC) nondestructive evaluation (NDE) techniques that were developed to inspect the flight FCV poppets. This report contains the findings and recommendations from the NESC assessment.

  17. Space Shuttle Program (SSP) Orbiter Main Propulsion System (MPS) Gaseous Hydrogen (GH2) Flow Control Valve (FCV) Poppet Eddy Current (EC) Inspection Probability of Detection (POD) Study. Volume 2; Appendices

    Science.gov (United States)

    Piascik, Robert S.; Prosser, William H.

    2011-01-01

    The Director of the NASA Engineering and Safety Center (NESC), requested an independent assessment of the anomalous gaseous hydrogen (GH2) flow incident on the Space Shuttle Program (SSP) Orbiter Vehicle (OV)-105 during the Space Transportation System (STS)-126 mission. The main propulsion system (MPS) engine #2 GH2 flow control valve (FCV) LV-57 transition from low towards high flow position without being commanded. Post-flight examination revealed that the FCV LV-57 poppet had experienced a fatigue failure that liberated a section of the poppet flange. The NESC assessment provided a peer review of the computational fluid dynamics (CFD), stress analysis, and impact testing. A probability of detection (POD) study was requested by the SSP Orbiter Project for the eddy current (EC) nondestructive evaluation (NDE) techniques that were developed to inspect the flight FCV poppets. This report contains the Appendices to the main report.

  18. A Systems Engineering Approach to Quality Assurance for Aerospace Testing

    Science.gov (United States)

    Shepherd, Christena C.

    2015-01-01

    On the surface, it appears that AS91001 has little to say about how to apply a Quality Management System (QMS) to major aerospace test programs (or even smaller ones). It also appears that there is little in the quality engineering Body of Knowledge (BOK)2 that applies to testing, unless it is nondestructive examination (NDE), or some type of lab or bench testing associated with the manufacturing process. However, if one examines: a) how the systems engineering (SE) processes are implemented throughout a test program; and b) how these SE processes can be mapped to the requirements of AS9100, a number of areas for involvement of the quality professional are revealed. What often happens is that quality assurance during a test program is limited to inspections of the test article; what could be considered a manufacturing al fresco approach. This limits the quality professional and is a disservice to the programs and projects, since there are a number of ways that quality can enhance critical processes, and support efforts to improve risk reduction, efficiency and effectiveness.

  19. Çanakkale Muallimler Birliği Dergisi'nde Eğitim ve Öğretimle İlgili Görüş ve Düşünceler

    Directory of Open Access Journals (Sweden)

    Aziz KILINÇ

    2007-04-01

    Full Text Available Although eform activities in the Turkish education system began during the Tanzimat period the process speeded up during Abdulhamit II and especially during Mesrutiyet II (Constitutional Monarchy period. The press activities, which began durinh Abdulhamit II with the "Usul-i Cedid" (New Method activity and aiming to introduce the new educational perceptions into the Turkish education system, were important. The early years of the Republic of Turkey was a period when the main principles and ideas of the educational movements of the western reformist were adapted and practiced in a more planned way.

  20. Self-focusing and defect characterization with the FAUST system

    International Nuclear Information System (INIS)

    Mahaut, S.; Cattiaux, G.; Roy, O.; Benoist, PH.

    1996-01-01

    The FAUST (Focusing Adaptative UltraSonic Tomography) system was developed at the French Atomic Energy Commission (CEA) to improve performances of ultrasonic non destructive testing in terms of adaptability to various control configurations and defect characterization. Unlike conventional techniques only allowing fixed focusing, this system can dynamically modify the characteristics of the ultrasonic beam. This system relies on optimized phased array transducers connected to a multi-channel acquisition system supplying amplitude and delay laws allowing to drive the ultrasonic beam. Previous works have demonstrated the skills of this system for ultrasonic beam forming. The reliability of the procedure was proved by comparison with theoretical results, while comparisons with experimental results provided by conventional transducer pointed out the improved capacities of the system. In the first part of paper, we briefly present the model used for the system validation. This field computational model developed at the CEA is used to design optimized phased array transducers dedicated to NDE configurations (immersed transducers used to focus through Fluid/Solid interfaces). Theoretical delay laws and related ultrasonic fields are also calculated from this model. In addition to its ability to dynamically form the ultrasonic beam by taking account of the control configuration, we investigate in the second part of the paper the capabilities of the system to extract informations from he received signals. The ability of the system to store the signals received by all the elements of the array allows one to perform different reconstruction procedures. Useful informations can be extracted from the received signals: experimentally measured delay laws can be determined from reflected signals to obtain an optimal imaging, while the related amplitude distribution over the array points out geometrical characteristics of the reflector. (authors)

  1. “REACT” STRATEJİSİNE UYGUN HAZIRLANAN MATERYALİN ÜSTÜN YETENEKLİ ÖĞRENCİLERİN BAŞARISI ÜZERİNDE ETKİSİ

    OpenAIRE

    DEMİRCİOĞLU, Hülya; VURAL, Selma; DEMİRCİOĞLU, Gökhan

    2012-01-01

    The research on science education has an important place in development of education systems. The data obtained from the researches has contributed to the emergence of different teaching approaches, strategies, models, and practices, and to further development of existing approaches. One of these approaches is the context-based approach. In recent years, it has been used widely in many countries in the world to improve the quality of education. Several context-based approaches have been devel...

  2. BANKACILIK SEKTÖRÜNDE TOPLAM HİZMET KALİTESİNİN SATINALMA GÜCÜ PARİTESİ VE TÜRKİYE ÜZERİNE BİR UYGULAMA: 1980-2002

    OpenAIRE

    ÇAKMAK, Erol; ÇINAR, Sema

    2004-01-01

    Purchasing Power Parity Theory as a theory of determining the exchange rate or a Iong-run balance relationship has a significant role not only-for developed but also for developing countries which apply freely floating exchange rate system especially after 1980's. in this study, in the light of theoretical framevvork and literatüre review, absolute and relative purchasing power parity are tested by unit root and co-integration tests for the Turkish economy. Findings have shovvn that rela...

  3. The Structural Reforms of the Chinese Statistical System Die Strukturreformen des chinesischen Statistiksystems

    Directory of Open Access Journals (Sweden)

    Günter Moser

    2009-04-01

    Full Text Available The quality of statistical data covering the economic and social development of the People’s Republic of China has been questioned by international and national data users for years. The reasons for this doubt lie mainly in the structure of the Chinese system of statistics. Two parallel systems exist which operate largely autonomously: the national system of statistics and the sectoral system of statistics. In the area of the national statistical system, the National Bureau of Statistics (NBS has the authority to order and collect statistics. This competence lies with the ministries and authorities below the ministerial level. This article describes and analyses these structures, the resulting problems, and the reform measures taken to date. It also aims to provide a better understanding of the statistical data about the People’s Republic of China and to enable an assessment of them within a changing structural context. In conclusion, approaches to further reforms will be provided based on the author’s long-standing experience in cooperation projects with the official Chinese statistics agencies. Die Qualität der Statistiken zur ökonomischen und sozialen Entwicklung in der Volksrepublik China ist in letzter Zeit sowohl von ausländischen wie auch von einheimischen Nutzern der Daten in Frage gestellt worden. Die Gründe dafür liegen vor allem in der Struktur des Erhebungssystems in China.

  4. GENÇ İŞSİZLİĞİ SORUNUNUN ALMANYA VE TÜRKİYE MESLEKİ EĞİTİM SİSTEMİ ÇERÇEVESİNDE DEĞERLENDİRİLMESİ

    Directory of Open Access Journals (Sweden)

    Ayşe AYDIN

    2017-02-01

    Full Text Available Unemployment, that is subject to many researches for many years, showed a great increase in global scale in recent years. In this process which there is an increase in unemployment rates and number of unemployed people, one other significant subject is that unemployment rate in youth between 15 to 24 years old reached higher rates than total unemployment rates. Like total unemployment, youth unemployment that can emerge depending on various reasons as functioning of economic structure and market structure, has specifical reasons and features. Germany, is most successful country in the EU as regards the solution of youth unemployment. The success of the Germany is due to effective implementation of vocational training programmes in the Labour Market. For this reason, while addressing the problem of youth unemployment in Turkey, Germany’s vocational education system (very successful in this regard is compared with Turkey.

  5. Genişlemelerle Birlikte Avrupa Birliği Bakanlar Konseyi’nde Oylama Gücü Dağılımı(Voting Power Distribution With The Enlargements In The Council of The European Union

    Directory of Open Access Journals (Sweden)

    Hatice Burcu ESKİCİ

    2013-12-01

    Full Text Available Nowadays, enlargement is one of the most important issue for European Union. The situation that makes this issue important is the influence of membership of the candidate states on the voting power distribution. With the enlargements, European Union decision-making processes were regulated several times. The last regulation to the European Union voting system was brought by the Treaty of Lisbon. In this study, voting power distribution in Council of the European Union is evaluated for candidate states and member states considering the acts adopted by the Treaty of Lisbon and determined as candidate states determined as Turkey, Croatia, Iceland, Former Yugoslav Republic of Macedonia. In the analysis, member states are grouped the according to the enlargement of the EU and the effect of the states that take part in these groups on the decision and changes of voting power are calculated using Banzhaf power index for power measurement.

  6. Akdeniz Üniversitesi’nde taşeron sağlık işçilerinin işçi sağlığı ve iş güvenliği durum tespiti

    Directory of Open Access Journals (Sweden)

    Mustafa Cumhur İzgi

    2012-12-01

    Full Text Available

    Amaç: Neoliberal politikaların Türkiye’deki yansımalarından biri olan Sağlıkta Dönüşüm Projesi taşeronlaşmayı içeren bir programdır. Sağlıkta taşeronlaşma, çalışanın sağlığını ve ürettiği hizmetin niteliği nedeniyle toplum sağlığını etkilemektedir. Çalışmanın amacı, bir üniversite hastanesinde taşeronlaşma sonrası çalışanların işçi sağlığı ve iş güvenliği açısından durumlarını değerlendirmek, konuya yönelik farkındalık yaratmak ve geniş çaplı çalışmaların planlanıp gerekli önlemlerin alınmasına katkı sağlamaktır. Yöntem: Akdeniz Üniversitesi Hastanesi’nde taşeron olarak çalışan 1175 işçiden, meslek grupları temel alınarak tanımlayıcı araştırmanın 153 kişilik örneği belirlenmiş ve araştırmaya katılmayı kabul eden 128 çalışana iki bölümden oluşan anket uygulanmıştır. Anketin ilk bölümünde sosyodemografik veriler ve araştırmaya ilişkin açık uçlu sorular, ikinci bölümünde ise beşli Likert tipi soru kökleri yer almaktadır. Bulgular: Katılımcıların %62.5’i iş öncesi sağlık risk eğitimi almadığını, %82.8’i riskler konusunda işveren tarafından bilgilendirilmediğini, %85.2’si aşı yapılmadığını, %57.0’si koruyucu donanımın yetersiz olduğunu, %73.4’ü yaptıkları işin sağlık riski yarattığını, %71.1’i taşeron çalışmanın sağlığı olumsuz etkilediğini, %94.6’sı kadrolu çalışmanın güvenceli olduğunu belirtmişlerdir. Sonuç: Çalışma ortamının sağlık risklerinden arındırılması, iş güvencesinin sağlanması ve sağlık hizmet üretiminde insan haklarının yaşama geçirilmesi için taşeronlaşmaya son verilmesi gerekir.

    Anahtar Kelimeler: Taşeronlaşma, sağlık hakkı, işçi sağlığı, iş güvenliği

  7. TURİZM SEKTÖRÜNDE ÇALIŞANLARIN HUKUKİ HAKLARINA İLİŞKİN FARKINDALIKLARI: KONAKLAMA VE YİYECEK-İÇECEK İŞLETMELERİ ÇALIŞANLARI ÜZERİNE BİR ARAŞTIRMA

    Directory of Open Access Journals (Sweden)

    Özgür Hakan ÇAVUŞ

    2015-04-01

    Full Text Available ÖZ: Ekonomik, sosyal ve siyasal koşullar çalışma hayatını yakından etkilemektedir. Bu nedenle hukuki düzenlemeler iş hayatında ve bireylerin sosyal yaşamlarında önemli bir role sahiptir. Bu bağlamda, hemen her sektörde çalışanların özlük haklarına ilişkin yeterli bilgiye sahip olması beklenir. Bu çalışma turizm sektöründe çalışanların sosyal haklarına ilişkin farkındalıklarını test etmeye çalışmaktadır. Araştırmadan elde edilen veriler SPSS 20 ile frekans ve yüzde dağılımlarına tabi tutulmuş ve elde edilen sonuçlara makalede yer verilmiştir. Ayrıca parametrik ve parametrik olmayan testlere yönelik analizler de yapılarak katılımcıların cinsiyet, medeni durum, gelir ve eğitim durumlarıyla uygulamalar arasındaki farklılıklar tespit edilmeye çalışılmıştır. Boyutlar arasındaki ilişkileri tespit etmek amacıyla yapılan korelasyon analizinde ilişki dereceleri oldukça yüksek çıkmıştır. Son olarak yapılan regresyon analizlerine ilişkin bulgularda bağımsız değişkenlerin bağımlı değişkeni açıklama oranı %33 olarak tespit edilmiştir. Elde edilen istatistikî bulgulara göre, turizm sektöründe sendikalı çalışanların sendikal haklarına ilişkin bilgilerinin yüksek olduğu ancak sosyal sigorta haklarına ilişkin bilgilerinin düşük olduğu belirlenmiştir. Özellikle turizm çalışanlarının emeklilik işlemlerine ve haklarına ilişkin farkındalıklarının ise daha düşük olduğu gözlenmiştir. Katılımcıların cinsiyetleri ile İş Kanunu uygulamaları arasında anlamlı farklılıklar görülmüş bu bağlamda kadınların erkeklere oranla İş Kanunu uygulamalarına daha fazla önem verdikleri görülmüştür. Son olarak 1-5 yıl arasında turizm sektöründe sendikalı çalışanların İş Sağlığı ve Güvenliği Kanunu uygulamalarını daha yakından takip ettikleri saptanmıştır. Anahtar Kelimeler: Turizm

  8. SOSYAL SERMAYE VE İŞ PERFORMANSI ARASINDAKİ İLİŞKİDE ÖRTÜLÜ BİLGİ PAYLAŞIMI DAVRANIŞININ ARACILIK ETKİSİ: SİGORTACILIK SEKTÖRÜNDE BİR ARAŞTIRMA

    Directory of Open Access Journals (Sweden)

    Özlem YAŞAR UĞURLU

    2016-03-01

    Full Text Available ÖZ: Bu araştırma örtülü bilgi paylaşımı davranışının sosyal sermaye boyutları ile iş performansı arasındaki ilişkide aracılık etkisi olup olmadığını analiz etmektedir. Araştırma hipotezlerinin testi için sigortacılık sektöründe faaliyet gösteren bir şirketin acentalarında istihdam edilen 123 pazarlama çalışanına anket uygulanmıştır. Elde edilen bulgular araştırma hipotezlerini destekler niteliktedir ve literatürle paralel sonuçlar elde edilmiştir. Bulgulara göre sosyal sermaye boyutları ile iş performansı ve örtülü bilgi paylaşımı davranışı arasında pozitif ilişkiler saptanmıştır. Ayrıca örtülü bilgi paylaşımının sosyal sermaye boyutlarından yapısal boyutu temsil eden iletişim açıklığı değişkeni ile iş performansı arasındaki ilişkide tam aracı etkiye sahip olduğu bulunmuştur. ABSTRACT: Abstract This study examines the mediating effect of tacit knowledge sharing on the relationship between the dimensions of social capital and job performance. For testing research hypothesis, a survey was conducted on 123 marketing employees in agencies of a Turkish insurance company. The results obtained from statistical findings support research hypothesis and are in line with literature. In the research, it has been shown the effect of social capital on both job performance and tacit knowledge sharing behavior. Furthermore, the full mediating effect of tacit knowledge sharing behavior was found on the relationship between open communication (the structural dimension of social capital and job performance.

  9. THE FUNCTION OF TEXTS IN TRANSFERRING OF CULTURE IN TEACHING TURKISH AS A FOREIGN LANGUAGE YABANCI DİL OLARAK TÜRKÇE ÖĞRETİMİNDE METİNLERİN KÜLTÜR AKTARIMINDAKİ İŞLEVİ

    Directory of Open Access Journals (Sweden)

    Fatma BÖLÜKBAŞ

    2010-10-01

    Full Text Available In this study the place and the significance of written texts which are among cultural transferring instruments and at the same time which have been used in Turkish as a foreign language courses are questioned and various sample exercises on texts have been prepared. Language is not only a significant part of culture but also the transmitter of the culture. Therefore the transferring of the elements consisting of Turkish culture has positive effects on language learning process. With this point of view in mind, it is necessary to transfer Turkish culture in teaching Turkish as a foreign language. Bu çalışmada, dil öğretiminin kültürler arası karşılaşma alanı olduğu düşüncesinden yola çıkılarak yabancı dil olarak Türkçe derslerinde kullanılan, aynı zamanda kültür aktarım araçlarından olan metinlerin bu süreçteki yeri ve önemi sorgulanarak sınıf içi uygulama örneklerine yer verilmiştir. Dil, sadece kültürün önemli bir parçası değil aynı zamanda kültürün aktarıcısıdır. Bu nedenle yabancı dil öğretiminde kültürel ögelerin aktarılması dil öğrenme sürecini olumlu yönde etkiler. Bu görüşten hareketle, yabancı dil olarak Türkçe öğretiminde Türk kültürünü içeren ögelerin ders ortamına aktarılması gerekmektedir.

  10. HASTANE İŞLETMELERİ KARDİYOLOJİ POLİKLİNİĞİNDE SİPARİŞ MALİYET YÖNTEMİYLE AYAKTAN HASTA TANI MALİYETİNİN HESAPLAMASI

    Directory of Open Access Journals (Sweden)

    E. Yasemin YEGİNBOY

    2015-07-01

    Full Text Available ÖZ: Günümüzde sağlık hizmeti üreten en önemli işletmeler hastanelerdir. Hastanelerde diğer işletmelerde olduğu gibi maliyet analizleri önem taşır. Maliyet analizleriyle, hastanelerin kazanç veya zarar durumları en iyi şekilde hesaplanabilir. Böylelikle hastane yönetimleri, hasta sayılarının belirlenmesi ve belirli uzmanlık alanlarına yapılacak yatırımların artırılması gibi çeşitli stratejik kararlar alabilirler. Hastanelerde sunulan sağlık hizmeti çok çeşitli ve heterojendir. Her hastaya farklı tedaviler uygulanır. Bu durum hastalık bazlı maliyet hesaplamalarını güçleştirir. Ancak, maliyet hesaplama yöntemlerinden, sipariş maliyet yöntemi ile her hasta için hasta maliyet kartı oluşturulur ve hasta bazlı maliyetler hesaplanabilir. Bu çalışmada; sipariş maliyet yöntemi detaylı olarak açıklanarak uygulama örneği verilmiştir. Kardiyoloji polikliniğinde muayene olup, ilgili birimlerde tetkikleri yapılan bir hastanın tanı maliyeti, sipariş maliyet yöntemi ile hesaplanarak hastanın maliyet kartı oluşturulmuştur. ABSTRACT: Nowadays, the places that offer health care service are hospitals. Like in the other business fields, cost analysis is very important in hospitals. By means of cost analysis, profit and loss statement of the hospitals can be calculated best. Thus, the strategic decisions such as determining the number of the patients with the hospital administration and increasing the investment on certain areas of expertise can be taken. The health care services provided in the hospitals are diverse and not homogeneous. Each patient is provided with different treatment. This situation makes it difficult to calculate patient-based cost accounts. However, by means of job order costing system which is a way of calculating the cost accounts, patient cost card is made for each patient, and patient-based cost accounts can be calculated. In this study, job order costing system is

  11. ENTERPRISE RESOURCE PLANNING IMPLEMENTATION: A SURVEY OF TURKISH MANUFACTURING ORGANIZATIONS - KURUMSAL KAYNAK PLANLAMASI UYGULAMALARI: TÜRK SANAYİ İŞLETMELERİNDE BİR ARAŞTIRMA

    Directory of Open Access Journals (Sweden)

    Arzu KARAMAN AKGÜL

    2014-01-01

    Full Text Available AbstractEnterprise Resource Planning (ERP systems attempt to integrate all corporate information in one central database, they allow information to be retrieved from many different organizational positions, and in principle they render any organizational object visible [1]. The purpose of this study first of all is to conduct a literature search to identify selection criteria, critical success factors, and advantages of Enterprise Resource Planning and commonly encountered problems in ERP implementation. Hypotheses are developed and tested to investigate the differences in success factors according to the sector, in which the firm operates, ERP level, and ERP implementation stage of the firm. According to the results, functionality, cross module integration and system reliability have been identified as the most important selection criteria.ÖzetKurumsal Kaynak Planlaması (KKP sistemleri, tüm kurumsal bilgileri tek bir merkezi veritabanına entegre etmeye çalışmakta, pek çok farklı organizasyonel pozisyondan bilginin edinilmesine izin vermekte ve esas itibariyle her organizasyonel amacı görünür hale getirmektedir [1]. Bu çalışmanın amacı, öncelikle Kurumsal Kaynak Planlaması için seçim kriterlerini, kritik başarı faktörlerini ve avantajlarını ve KKP uygulamasında genellikle karşılaşılan sorunları tespit etmek üzere bir akademik yazın incelemesi gerçekleştirmektir. Firmanın faaliyet gösterdiği sektöre göre,ERP düzeyine göre ve firmanın ERP uygulama adımına göre başarı faktörlerindeki farklılıkların tespiti için hipotezler geliştirilmiş ve test edilmiştir. Sonuçlar, fonksiyonellik, modüllerin çapraz entegrasyonu ve sistemin güvenilirliğinin en önemli seçim kriterleri olduğunu göstermiştir.

  12. ENTERPRISE RESOURCE PLANNING IMPLEMENTATION: A SURVEY OF TURKISH MANUFACTURING ORGANIZATIONS - KURUMSAL KAYNAK PLANLAMASI UYGULAMALARI: TÜRK SANAYİ İŞLETMELERİNDE BİR ARAŞTIRMA

    Directory of Open Access Journals (Sweden)

    Arzu KARAMAN AKGÜL

    2014-03-01

    Full Text Available AbstractEnterprise Resource Planning (ERP systems attempt to integrate all corporate information in one central database, they allow information to be retrieved from many different organizational positions, and in principle they render any organizational object visible [1]. The purpose of this study first of all is to conduct a literature search to identify selection criteria, critical success factors, and advantages of Enterprise Resource Planning and commonly encountered problems in ERP implementation. Hypotheses are developed and tested to investigate the differences in success factors according to the sector, in which the firm operates, ERP level, and ERP implementation stage of the firm. According to the results, functionality, cross module integration and system reliability have been identified as the most important selection criteria.ÖzetKurumsal Kaynak Planlaması (KKP sistemleri, tüm kurumsal bilgileri tek bir merkezi veritabanına entegre etmeye çalışmakta, pek çok farklı organizasyonel pozisyondan bilginin edinilmesine izin vermekte ve esas itibariyle her organizasyonel amacı görünür hale getirmektedir [1]. Bu çalışmanın amacı, öncelikle Kurumsal Kaynak Planlaması için seçim kriterlerini, kritik başarı faktörlerini ve avantajlarını ve KKP uygulamasında genellikle karşılaşılan sorunları tespit etmek üzere bir akademik yazın incelemesi gerçekleştirmektir. Firmanın faaliyet gösterdiği sektöre göre,ERP düzeyine göre ve firmanın ERP uygulama adımına göre başarı faktörlerindeki farklılıkların tespiti için hipotezler geliştirilmiş ve test edilmiştir. Sonuçlar, fonksiyonellik, modüllerin çapraz entegrasyonu ve sistemin güvenilirliğinin en önemli seçim kriterleri olduğunu göstermiştir.

  13. Development of a diagnostic expert system for eddy current data analysis using applied artificial intelligence methods

    International Nuclear Information System (INIS)

    Upadhyaya, B.R.; Yan, W.; Henry, G.

    1999-01-01

    A diagnostic expert system that integrates database management methods, artificial neural networks, and decision-making using fuzzy logic has been developed for the automation of steam generator eddy current test (ECT) data analysis. The new system, known as EDDYAI, considers the following key issues: (1) digital eddy current test data calibration, compression, and representation; (2) development of robust neural networks with low probability of misclassification for flaw depth estimation; (3) flaw detection using fuzzy logic; (4) development of an expert system for database management, compilation of a trained neural network library, and a decision module; and (5) evaluation of the integrated approach using eddy current data. The implementation to field test data includes the selection of proper feature vectors for ECT data analysis, development of a methodology for large eddy current database management, artificial neural networks for flaw depth estimation, and a fuzzy logic decision algorithm for flaw detection. A large eddy current inspection database from the Electric Power Research Institute NDE Center is being utilized in this research towards the development of an expert system for steam generator tube diagnosis. The integration of ECT data pre-processing as part of the data management, fuzzy logic flaw detection technique, and tube defect parameter estimation using artificial neural networks are the fundamental contributions of this research. (orig.)

  14. Development of a diagnostic expert system for eddy current data analysis using applied artificial intelligence methods

    Energy Technology Data Exchange (ETDEWEB)

    Upadhyaya, B.R.; Yan, W. [Tennessee Univ., Knoxville, TN (United States). Dept. of Nuclear Engineering; Behravesh, M.M. [Electric Power Research Institute, Palo Alto, CA (United States); Henry, G. [EPRI NDE Center, Charlotte, NC (United States)

    1999-09-01

    A diagnostic expert system that integrates database management methods, artificial neural networks, and decision-making using fuzzy logic has been developed for the automation of steam generator eddy current test (ECT) data analysis. The new system, known as EDDYAI, considers the following key issues: (1) digital eddy current test data calibration, compression, and representation; (2) development of robust neural networks with low probability of misclassification for flaw depth estimation; (3) flaw detection using fuzzy logic; (4) development of an expert system for database management, compilation of a trained neural network library, and a decision module; and (5) evaluation of the integrated approach using eddy current data. The implementation to field test data includes the selection of proper feature vectors for ECT data analysis, development of a methodology for large eddy current database management, artificial neural networks for flaw depth estimation, and a fuzzy logic decision algorithm for flaw detection. A large eddy current inspection database from the Electric Power Research Institute NDE Center is being utilized in this research towards the development of an expert system for steam generator tube diagnosis. The integration of ECT data pre-processing as part of the data management, fuzzy logic flaw detection technique, and tube defect parameter estimation using artificial neural networks are the fundamental contributions of this research. (orig.)

  15. Developing a program to identify and track corrosion in nuclear plant raw water systems

    International Nuclear Information System (INIS)

    Spires PE, G.V.; Pickles PE, S.B.

    2001-01-01

    Findings derived from a comprehensive plant performance survey at Ontario Power Generation's (OPG) nuclear units convinced management that it would be prudent to expand the ongoing power piping Flow Accelerated Corrosion (FAC) induced wall thinning base-lining and tracking program to encompass the raw cooling water systems as well. Such systems are subject to a distinctly different class of pipe wall thinning (PWT) mechanisms than the FAC that degrades high-energy power piping. This paper describes the PWT corrosion assessment and tracking program that has been developed and is currently being implemented by OPG for the raw cooling water (i.e., Service Water) systems within it's nuclear generating stations. Interim databases are used prior to initial inspection rounds to catalogue the prospective locations. For each piping system being surveyed, these interim databases include physical coordinates for the candidate locations, the type and wall thickness of the components comprising each location, ranking indications and recommended NDE methodologies as a function of the anticipated corrosion mechanisms. Rationales for assessing corrosion susceptibility and ranking prospective inspection sites are expounded by way of notations built into the database. (authors)

  16. “ŞEM AND PERVANE” IN THE TRIANGEL OF BEAUTY, LOVE AND KNOWLEDGE GÜZELLİK, AŞK VE BİLGİ ÜÇGENİNDE “ŞEM VE PERVÂNE”

    Directory of Open Access Journals (Sweden)

    Ayşegül AKDEMİR

    2010-07-01

    Full Text Available In the sufism thought system “love” means the creative activity of Allah; but “knowledge” means the aim and result of the activity mentioned. To cause both love and knowledge appear, two elements known as “lover-love” and “knowing-known” are needed because they consist of joint point of the concepts mentioned.In the Classical Turkish Literature whose main concept is love several elements are taken into consideration to meet “the lover/knowing” and “the love/known” and to reflect the form of the relation between them. “Şem and pervane” which is the main subject of our study is one of the sembolic elements used in expressing the relationship of “the lover/knowing-the love/known” in the Classical Turkish Literature. Among these elements “pervane” represents the lover and “şem” undertakes the function of maşuk. The fact that these elements take place in the world of poetry is because the form of the relationship between these two element are commented as the love relation.In the sufism, love is taken into consideration as a notion which is related to not only human but also the creator. Therefore, love in the “şem and pervane” symbolism faces us valid for both two elements and the two love mentioned forms the two steps following each other in the coil of the existence. The first ring of this coil is the burning of şem and the second is the burning of pervane.In this study, “şem and pervane” which are the symbolic expressions in the Classical Turkish Literature are taken into consideration through the concepts of “beauty”, “love” and “knowledge” and they are commented in the light of sufism thought system. Tasavvufi düşünce sisteminde “aşk”, Allah’ın yaratıcı etkinliği olarak karşılık bulmakta; “bilgi” ise söz konusu etkinliğin gayesini ve sonucunu ifade etmektedir. Hem aşkın hem de bilginin ortaya çıkabilmesi için, “âşık-maşuk” ve

  17. ANLAŞMAZLIKLARIN ÇÖZÜMÜNDE AKRAN ARABULUCULUK MODELİNİN DÖNÜŞTÜRÜCÜ ETKİLERİ: ARABULUCU ÖĞRENCİLER GÖZÜNDEN BİR DEĞERLENDİRME (THE CONVERTER EFFECTS OF PEER MEDIATION MODEL FOR THE DISAGREEMENTS SOLUTION: EVALUATION FROM THE LOOK OF THE MEDIATOR STUDENTS

    Directory of Open Access Journals (Sweden)

    Cemile ÇETİN

    2014-07-01

    Full Text Available ÖZ: Akran-arabuluculuğu, tarafsız bir üçüncü öğrencinin kolaylaştırıcılığında, çatışan öğrencilerin ortak sorunlarını yüz yüze müzakere ettikleri, bir anlaşmazlık çözüm yoludur. Akran-arabuluculuğunda, önerilerde bulunma, nihai kararı belirleme ve her iki tarafında kabul edeceği bir çözüm bulma sorumluluğu, öncelikle müzakere eden yani sorunun tarafı olan öğrencilere aittir (Messing, 1993. Böylece akran arabuluculuk oluşan sorunu çözme konusunda sahip olunan potansiyelin barışçıl performansa dönüştürülmesini sağlar. Araştırma, "akran arabuluculuk modelini, arabulucu öğrencilerin gözünden” değerlendirmek için gerçekleştirilmiştir. İzmir’de bir lisede altı yıldır uygulanan akran arabuluculuk programının etkililiği, arabuluculuk yapan 30'u kız, 20'si ise erkek olmak üzere 50 öğrenci ile yarı yapılandırılmış görüşme tekniği kullanılarak değerlendirilmiştir. Kodlama güvenirliği %85,9’dur.Araştırmanın anlamlı sonuçlarından biri; öğrencilerin sınıf arkadaşları tarafından sınıflarının arabulucusu olarak seçilmekten mutluluk, heyecan ve sevinç hissettiklerini ifade etmiş olmalarıdır. Ayrıca, seçilmiş olmanın kendilerinde sorumluluk, özgüven, güçlülük ve sorun çözmeye ilişkin yeterlik duyguları hissettirdiğini belirtmişlerdir. Elde edilen sonuçlar, akran arabuluculuk ile anlaşmazlık çözümünde öğrenilmiş çaresizliğin yerini öğrenilmiş güçlülüğe bıraktığını işaret etmektedir. Aynı zamanda, akran odaklı bir anlaşmazlık çözüm yöntemi olan akran-arabuluculuk modelinin Türk kültüründe hem daha detaylı ve derinlemesine hem de yaygın etkisinin incelenmesine gereksinim vardır. Anahtar Kelimeler: Arabuluculuk, Akran-arabuluculuğu, Çatışma, Anlaşmazlık. ABSTRACT: Peer-mediation is a way of dispute resolution, facilitated by a neutral third student, that conflicting students

  18. MEDYA İŞLETMELERİNDE DENETİMİN FİNANSAL YÖNETİMDEKİ ÖNEMİ - THE IMPORTANCE OF AUDITING FOR FINANCIAL MANAGEMENT IN MEDIA COMPANIES

    Directory of Open Access Journals (Sweden)

    Türkân Uğur DÂİ

    2014-01-01

    international creditors, customers, stockholders,national and international investors, government and other interest groups is explained in detail.The basic financial statements such as the consolidated balance sheet and the consolidated incomestatement of a media holding subject to external auditing is given as examples. New TurkishCommercial Law and the other related new legal regulations providing international uniformfinancial reporting standards are also analyzed. It is also mentioned that Turkish media organizationswhich are recently developing their internal control systems and periodic internal auditing,not only to prevent errors and irregularities, but also to carry out efficient financial management.In fact the efficient internal auditing determines the extent of external auditing procedures to beapplied by the independent external auditors. The results of the reports prepared by the independentexternal auditors are given importance by professional contemporary managers in order tohave a good financial performance.

  19. MEDYA İŞLETMELERİNDE DENETİMİN FİNANSAL YÖNETİMDEKİ ÖNEMİ - THE IMPORTANCE OF AUDITING FOR FINANCIAL MANAGEMENT IN MEDIA COMPANIES

    Directory of Open Access Journals (Sweden)

    Türkân Uğur DÂİ

    2014-03-01

    international creditors, customers, stockholders,national and international investors, government and other interest groups is explained in detail.The basic financial statements such as the consolidated balance sheet and the consolidated incomestatement of a media holding subject to external auditing is given as examples. New TurkishCommercial Law and the other related new legal regulations providing international uniformfinancial reporting standards are also analyzed. It is also mentioned that Turkish media organizationswhich are recently developing their internal control systems and periodic internal auditing,not only to prevent errors and irregularities, but also to carry out efficient financial management.In fact the efficient internal auditing determines the extent of external auditing procedures to beapplied by the independent external auditors. The results of the reports prepared by the independentexternal auditors are given importance by professional contemporary managers in order tohave a good financial performance.

  20. Başkent Üniversitesi İstanbul Hastanesi’nde çalışan 20-64 yaş arası yetişkin bireylerde şekerli ve tatlandırıcılı içecek tüketiminin enerji alımı ve obezite üzerine etkisi

    OpenAIRE

    Terzioğlu, Emel

    2015-01-01

    Bu çalışma bireylerin şekerli ve tatlandırıcılı içecek tüketiminin enerji alımı ve obezite üzerini etkisini incelemek amacıyla yapılmıştır. Çalışma, Ağustos 2014- Kasım 2014 tarihleri arasında Başkent Üniversitesi İstanbul Hastanesi’nde doktor, hemşire ve diğer sağlık personeli ile hasta danışmanı olarak çalışan, yaşları 16-48 arasında değişen 100 ( 82 kadın, 18 erkek) sağlıklı birey üzerinde yürütülmüştür. Bireylerin kişisel bilgileri, genel sağlık durumları, yaşam tarzı alışkanlıkları ve te...

  1. Micromechanical Models for Composite NDE and Diagnostics, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — Modern aircraft (and next generation spacecraft) increasingly rely on composite components due to their excellent specific strength and stiffness, as well as...

  2. NDE of PWR fuel: Identifying candidates for hot cell examination

    International Nuclear Information System (INIS)

    Moon, J.E.; Bury, J.G.; Correal, O.A.; Kunishi, H.; Wilson, H.W.

    1992-05-01

    On-site examinations were performed at the Indian Point 3 and Callaway reactors to attempt to identify the leakage mechanism of several leaking fuel rods. The exams consisted of removing the leaking fuel rods from the assembly and performing a visual examination. These results, combined with other available on-site data on leaking fuel rods, were used to select fuel rods for shipment to a hot cell for detailed root cause examination. Three fuel rods from the Indian Point 3 reactor were found to be leaking due to debris-induced fretting. The examinations at Callaway were terminated prior to completion due to utility scheduler conflicts. Rods from the Callaway reactor were selected for shipment to the hot cell along with the rods from the Byron 1 and 2 and V.C. Summer reactors. The data presented in the report summarize the coolant activity history, the UT examination results, and a summary of the review of the fabrication records. The basis for the selection of the rods to be sent to the hot cells is also summarized

  3. Application of NDE methods to green ceramics: initial results

    International Nuclear Information System (INIS)

    Kupperman, D.S.; Karplus, H.B.; Poeppel, R.B.; Ellingson, W.A.; Berger, H.; Robbins, C.; Fuller, E.

    1984-03-01

    This paper describes a preliminary investigation to assess the effectiveness of microradiography, ultrasonic methods, nuclear magnetic resonance, and neutron radiography for the nondestructive evaluation of green (unfired), ceramics. Objective is to obtain useful information on defects, cracking, delaminations, agglomerates, inclusions, regions of high porosity, and anisotropy

  4. Holographic NDE of pressure tubes for Cirene nuclear reactor

    International Nuclear Information System (INIS)

    Di Chirico, G.; Pirodda, L.; Villani, A.

    1985-01-01

    Pressure tubes for CIRENE nuclear reactor can be subjected to fretting corrosion of the inner walls. The resulting marks exhibit different geometries, whose influence on the structural behaviour of the tubes has been evaluated by means of a real time holographic technique. The paper shows the results of this investigation. Position and shape of internal defects have been directly visualized by observing holographic fringe distorsions on the outside surface of the tubes. Furthermore, through the fringe patterns, circumferential stress values have also been obtained. (Author) [pt

  5. Assessment of NDE needs for aging corporate and private aircraft

    Science.gov (United States)

    Reinhart, Eugene R.

    1998-03-01

    Considerable attention has been focused on the life extension of ageing military and commercial aircraft by the government and major aircraft fabricators. A vital, but often neglected segment of the aircraft industry is the are of inspecting ageing fleets of corporate and privately-owned aircraft. Many of these aircraft are inspected and maintained by the various FAA-approved repair stations located around the country. Nondestructive inspection (NDI) methods, equipment, and trained inspectors are a key aspect of maintaining these aircraft; however, there are currently several issues that need to be addressed by the private sector NDI community. Personnel training and certification to an accepted standard is critically needed in this industry since experience and capability in NDI can vary considerably between FAA stations and inspectors. Also, the updating of NDI methods are standards is needed. A review of these issues and suggestions for improvement are presented.

  6. Probability of crack-initiation and application to NDE

    Energy Technology Data Exchange (ETDEWEB)

    Prantl, G [Nuclear Safety Inspectorate HSK, (Switzerland)

    1988-12-31

    Fracture toughness is a property with a certain variability. When a statistical distribution is assumed, the probability of crack initiation may be calculated for a given problem defined by its geometry and the applied stress. Experiments have shown, that cracks which experience a certain small amount of ductile growth can reliably be detected by acoustic emission measurements. The probability of crack detection by AE-techniques may be estimated using this experimental finding and the calculated probability of crack initiation. (author).

  7. ¿Dónde estuvieron las ciencias sociales?

    Directory of Open Access Journals (Sweden)

    Gino Lofredo

    2015-01-01

    Full Text Available Se abordan varios temas uno de ellos muy difícil de ser investigado "Deuda externa y Comunicación", pues esta es más devastadora que cien hiroshimas, por lo que se incita a los periodistas a tomar partido y defender a los pueblos tercermundistas. Sobre la estabilidad democrática y el periodismo, se hace un llamado a periodistas y dueños de los medios de comunicación a defender "sus" frágiles democracias, debilitadas por la deuda externa. En relación al área de comunicación crisis y desastres naturales esta es inexplorada por los periodistas, a pesar de que cada año son diezmados centenares de pueblos. La información preventiva y la movilización, son campos de la comunicación social. Por último la era de los satélites toma a la sociedad de sorpresa, sin políticas adecuadas para aprovechar esta nueva avalancha tecnológica.

  8. Recent progress in the NDE of cast ship propulsion components

    Science.gov (United States)

    Spies, Martin; Rieder, Hans; Dillhöfer, Alexander; Rauhut, Markus; Taeubner, Kai; Kreier, Peter

    2014-02-01

    The failure of propulsion components of ships and ferries can lead to serious environmental and economic damage or even the loss of lives. For ultrasonic inspection of such large components we employ mechanized scanning and defect reconstruction using the Synthetic Aperture Focusing Technique (SAFT). We report on results obtained in view of the detection of defects with different inspection techniques. Also, we address the issue of Probability of Detection by reporting results obtained in POD and MAPOD-studies (Model-Assisted POD) using experimental and simulated data. Finally, we show recent results of surface and sub-surface inspection using optical and eddy current techniques.

  9. Infrared electro-thermal NDE of stainless steel

    International Nuclear Information System (INIS)

    Green, D.R.; Hassberger, J.A.

    1975-01-01

    Electro-thermal examination, a branch of thermal testing, is a promising method being developed for nondestructive examination of stainless steel welds. This paper describes the first phase of development; i.e., preliminary demonstration and laboratory evaluation of the method's sensitivity to notches in Type 304 stainless steel plate specimens. It also includes a description of the basic principles, together with a description of the hardware and experimental results showing that electrical discharge machined notches down to 0.16 cm long x 0.08 cm deep were detected. A qualitative technique for interpreting the test results to determine whether defects are at the surface or deeper within the material is demonstrated

  10. Quality assurance of brazed copper plates through advanced ultrasonic NDE

    OpenAIRE

    Segreto, T.; Caggiano, A.; Teti, R.

    2016-01-01

    Ultrasonic non-destructive methods have demonstrated great potential for the detection of flaws in a material under examination. In particular, discontinuities produced by welding, brazing, and soldering are regularly inspected through ultrasonic techniques. In this paper, an advanced ultrasonic non-destructive evaluation technique is applied for the quality control of brazed copper cells in order to realize an accelerometer prototype for cancer proton therapy. The cells are composed of two h...

  11. Numerical modeling of probe velocity effects for electromagnetic NDE methods

    Science.gov (United States)

    Shin, Y. K.; Lord, W.

    The present discussion of magnetic flux (MLF) leakage inspection introduces the behavior of motion-induced currents. The results obtained indicate that velocity effects exist at even low probe speeds for magnetic materials, compelling the inclusion of velocity effects in MLF testing of oil pipelines, where the excitation level and pig speed are much higher than those used in the present work. Probe velocity effect studies should influence probe design, defining suitable probe speed limits and establishing training guidelines for defect-characterization schemes.

  12. Thoughts on emerging NDE technology for the nuclear power industry

    International Nuclear Information System (INIS)

    Dau, G.J.

    1976-01-01

    Nondestructive evaluation can play a great role in combating the energy squeeze through improvements for safety and reliability-economics. It is believed that significant advances can occur in several areas: computer analysis, eddy current inspection, radiography, ultrasonic inspection, and acoustic emission. Each area is discussed briefly

  13. Current deflection NDE for pipeline inspection and monitoring

    Science.gov (United States)

    Jarvis, Rollo; Cawley, Peter; Nagy, Peter B.

    2016-02-01

    Failure of oil and gas pipelines can often be catastrophic, therefore routine inspection for time dependent degradation is essential. In-line inspection is the most common method used; however, this requires the insertion and retrieval of an inspection tool that is propelled by the fluid in the pipe and risks becoming stuck, so alternative methods must often be employed. This work investigates the applicability of a non-destructive evaluation technique for both the detection and growth monitoring of defects, particularly corrosion under insulation. This relies on injecting an electric current along the pipe and indirectly measuring the deflection of current around defects from perturbations in the orthogonal components of the induced magnetic flux density. An array of three orthogonally oriented anisotropic magnetoresistive sensors has been used to measure the magnetic flux density surrounding a 6'' schedule-40 steel pipe carrying 2 A quasi-DC axial current. A finite element model has been developed that predicts the perturbations in magnetic flux density caused by current deflection which has been validated by experimental results. Measurements of the magnetic flux density at 50 mm lift-off from the pipe surface are stable and repeatable to the order of 100 pT which suggests that defect detection or monitoring growth of corrosion-type defects may be possible with a feasible magnitude of injected current. Magnetic signals are additionally incurred by changes in the wall thickness of the pipe due to manufacturing tolerances, and material property variations. If a monitoring scheme using baseline subtraction is employed then the sensitivity to defects can be improved while avoiding false calls.

  14. Application of NDE methods to green ceramics: initial results

    International Nuclear Information System (INIS)

    Kupperman, D.S.; Karplus, H.B.; Poeppel, R.B.; Ellingson, W.A.; Berger, H.; Robbins, C.; Fuller, E.

    1983-01-01

    The effectiveness of microradiography, ultrasonic methods, unclear magnetic resonance, and neutron radiography was assessed for the nondestructive evaluation of green (unfired) ceramics. The application of microradiography to ceramics is reviewed, and preliminary experiments with a commercial microradiography unit are described. Conventional ultrasonic techniques are difficult to apply to flaw detection green ceramics because of the high attenuation, fragility, and couplant-absorbing properties of these materials. However, velocity, attenuation, and spectral data were obtained with pressure-coupled transducers and provided useful informaion related to density variations and the presence of agglomerates. Nuclear magnetic resonance (NMR) imaging techniques and neutron radiography were considered for detection of anomalies in the distribution of porosity. With NMR, areas of high porosity might be detected after the samples are doped with water. In the case of neutron radiography, although imaging the binder distribution throughout the sample may not be feasible because of the low overall concentration of binder, regions of high binder concentration (thus high porosity) should be detectable

  15. Developments in mechanical ultrasonic inspection and qualification of NDE

    International Nuclear Information System (INIS)

    Kauppinen, P.; Pitkaenen, J.; Kuusinen, P.

    2001-01-01

    Reliability of non-destructive testing results has a direct influence on structural integrity assessment and safety of the inspected structures e.g. NPP primary circuit pressure boundaries. Advanced technology together with highly skilled and experienced personnel is required. One of the current trends is automation. Mechanised equipment can replace tedious manual work in positioning and moving of the transducers. Large areas can be scanned, analysed and numerically documented for direct comparison of eventual later repeated inspections. Another major trend is qualification, which aims to ensure that the inspection results are correct and fit the purpose. The suitability and proper operation of equipment, methods and personnel i.e. the whole chain shall be proven. This presentation summarises the advances in automation and qualification of non-destructive inspection during the second project year, Monitoring of material degradation was included in the studied topics and will also be shortly described. (author)

  16. Ekspress suundus läände / Heimar Lenk

    Index Scriptorium Estoniae

    Lenk, Heimar, 1946-

    1998-01-01

    Järg Jun/9,10,11,12,13;14;15;16;17;18;19;20;21;22;26;27;29:30; Jul/1;2;3;4;6;7;8;9;10;11;13:14;15;16:17;18;20;21;22;23;24;25;27;28;29;30;31; Aug/3;4;5;6;7;8;10;11;12;13;14;17;18;19;21;22;24;25;26;27;29;31; Sep/1;2;3;4;5;7;8;9;10;11;12;14;15;16;17;18;19;21;22;23;24;25;26;28;29;30, Oct/1;2;3;5;6;7;8;9;10

  17. NDE Research At Nondestructive Measurement Science At NASA Langley

    Science.gov (United States)

    1989-06-01

    length of 68 inches and a ply orientation of 90-(+/-)60-90-90 would have a fundemental frequency of 10 hertz. This is how the third tube was...Perez, "A relationship between ultrasonic integrated backscatter and myocar- dial contractile function," J. Clin. Invest . 76, 2151-2160 (1985

  18. Nde of Frp Wrapped Columns Using Infrared Thermography

    Science.gov (United States)

    Halabe, Udaya B.; Dutta, Shasanka Shekhar; GangaRao, Hota V. S.

    2008-02-01

    This paper investigates the feasibility of using Infrared Thermography (IRT) for detecting debonds in Fiber Reinforced Polymer (FRP) wrapped columns. Laboratory tests were conducted on FRP wrapped concrete cylinders of size 6″×12″ (152.4 mm×304.8 mm) in which air-filled and water-filled debonds of various sizes were placed underneath the FRP wraps. Air-filled debonds were made by cutting plastic sheets into the desired sizes whereas water-filled debonds were made by filling water in custom made polyethylene pouches. Both carbon and glass fiber reinforced wraps were considered in this study. Infrared tests were conducted using a fully radiometric digital infrared camera which was successful in detecting air-filled as well as water-filled subsurface debonds. In addition to the laboratory testing, two field trips were made to Moorefield, West Virginia for detecting subsurface debonds in FRP wrapped timber piles of a railroad bridge using infrared testing. The results revealed that infrared thermography can be used as an effective nondestructive evaluation tool for detecting subsurface debonds in structural components wrapped with carbon or glass reinforced composite fabrics.

  19. Ultrasonic NDE and mechanical testing of fiber placement composites

    Science.gov (United States)

    Liu, Zhanjie; Fei, Dong; Hsu, David K.; Dayal, Vinay; Hale, Richard D.

    2002-05-01

    A fiber placed composite, especially with fiber steering, has considerably more complex internal structure than a laminate laid up from unidirectional prepreg tapes. In this work, we performed ultrasonic imaging of ply interfaces of fiber placed composite laminates, with an eye toward developing a tool for evaluating their quality. Mechanical short-beam shear tests were also conducted on both nonsteered and steered specimens to examine their failure behavior and its relationship to the structural defects indicated by ultrasonic imaging.

  20. 77 FR 3800 - Accurate NDE & Inspection, LLC; Confirmatory Order

    Science.gov (United States)

    2012-01-25

    ... corrective actions that included training provided to the radiography staff by the RSO on operating... staff during the annual refresher training conducted in October 2010 and the safety meeting conducted in... July 28, 2011. d. The training will include a discussion on the following topics: (1) The importance of...

  1. An Utilization Method Cooperating ISO drawings and Bookmarks for NDE

    Energy Technology Data Exchange (ETDEWEB)

    Yoo, Hyun-Ju; Cho, Chan-Hee; Lee, Tae-Hun [KHNP Central Research Institute, Daejeon (Korea, Republic of)

    2015-05-15

    The inspection of weld parts are performed with various non-destructive test methods such as AUT, VT, PT, ECT, etc. The results have been published in the report booklets. Moreover, huge amount of non-destructive inspection data and reports, which are produced from the '78 Kori 1 to newly constructed power plant, are stored in the management department and DDCC of each power plant. Because the data are not classified, it takes much time to find the corresponding non-destructive test results report of a specific unit of a power plant for a particular year. In addition, it is possibility to make human error because the report is written and submitted after finding manually the non-destructive test results for the concerning weld. When there is a dispute of the results of non-destructive inspection of a particular weld, analyzes the control center, a result of the power plant and the corresponding non-destructive inspection of a particular weld of ISO drawing in many places such as control center, corresponding power plant and CRI was discussed together will be to derive the final conclusion. For discussion, the person in charge of each site, looking for ISO drawings there is a result of the weld, in the past results history report of non-destructive testing for this, by searching the results of the welding site, telephone and E-mail disadvantage of complicated procedures if necessary to the discussion together in -mail is performed I have. In this paper, we describe the contents introduced the ISO drawings and Bookmark function is trying to complement these drawbacks. By applying the present invention utilization, find the ISO drawings manually when querying the results of the non-destructive inspection of past weld, which reduces the time to grasp the content of the non-destructive test results report.

  2. An implementation of signal processing algorithms for ultrasonic NDE

    International Nuclear Information System (INIS)

    Ericsson, L.; Stepinski, T.

    1994-01-01

    Probability of detection flaws during ultrasonic pulse-echo inspection is often limited by the presence of backscattered echoes from the material structure. A digital signal processing technique for removal of this material noise, referred to as split spectrum processing (SSP), has been developed and verified using laboratory experiments during the last decade. The authors have performed recently a limited scale evaluation of various SSP techniques for ultrasonic signals acquired during the inspection of welds in austenitic steel. They have obtained very encouraging results that indicate promising capabilities of the SSP for inspection of nuclear power plants. Thus, a more extensive investigation of the technique using large amounts of ultrasonic data is motivated. This analysis should employ different combinations of materials, flaws and transducers. Due to the considerable number of ultrasonic signals required to verify the technique for future practical use, a custom-made computer software is necessary. At the request of the Swedish nuclear power industry the authors have developed such a program package. The program provides a user-friendly graphical interface and is intended for processing of B-scan data in a flexible way. Assembled in the program are a number of signal processing algorithms including traditional Split Spectrum Processing and the more recent Cut Spectrum Processing algorithm developed by them. The program and some results obtained using the various algorithms are presented in the paper

  3. Heuristic Enhancement of Magneto-Optical Images for NDE

    Science.gov (United States)

    Cacciola, Matteo; Megali, Giuseppe; Pellicanò, Diego; Calcagno, Salvatore; Versaci, Mario; Morabito, FrancescoCarlo

    2010-12-01

    The quality of measurements in nondestructive testing and evaluation plays a key role in assessing the reliability of different inspection techniques. Each different technique, like the magneto-optic imaging here treated, is affected by some special types of noise which are related to the specific device used for their acquisition. Therefore, the design of even more accurate image processing is often required by relevant applications, for instance, in implementing integrated solutions for flaw detection and characterization. The aim of this paper is to propose a preprocessing procedure based on independent component analysis (ICA) to ease the detection of rivets and/or flaws in the specimens under test. A comparison of the proposed approach with some other advanced image processing methodologies used for denoising magneto-optic images (MOIs) is carried out, in order to show advantages and weakness of ICA in improving the accuracy and performance of the rivets/flaw detection.

  4. NDE errors and their propagation in sizing and growth estimates

    International Nuclear Information System (INIS)

    Horn, D.; Obrutsky, L.; Lakhan, R.

    2009-01-01

    The accuracy attributed to eddy current flaw sizing determines the amount of conservativism required in setting tube-plugging limits. Several sources of error contribute to the uncertainty of the measurements, and the way in which these errors propagate and interact affects the overall accuracy of the flaw size and flaw growth estimates. An example of this calculation is the determination of an upper limit on flaw growth over one operating period, based on the difference between two measurements. Signal-to-signal comparison involves a variety of human, instrumental, and environmental error sources; of these, some propagate additively and some multiplicatively. In a difference calculation, specific errors in the first measurement may be correlated with the corresponding errors in the second; others may be independent. Each of the error sources needs to be identified and quantified individually, as does its distribution in the field data. A mathematical framework for the propagation of the errors can then be used to assess the sensitivity of the overall uncertainty to each individual error component. This paper quantifies error sources affecting eddy current sizing estimates and presents analytical expressions developed for their effect on depth estimates. A simple case study is used to model the analysis process. For each error source, the distribution of the field data was assessed and propagated through the analytical expressions. While the sizing error obtained was consistent with earlier estimates and with deviations from ultrasonic depth measurements, the error on growth was calculated as significantly smaller than that obtained assuming uncorrelated errors. An interesting result of the sensitivity analysis in the present case study is the quantification of the error reduction available from post-measurement compensation of magnetite effects. With the absolute and difference error equations, variance-covariance matrices, and partial derivatives developed in this work, additional calculations can be performed as needed. Changes in the identification of correlated effects, the magnitude of errors, and the analytical form of voltage response can be made easily. The calculated errors on growth may be used to reduce conservative margins on plugging limits and the sensitivity analysis can be used to identify the technique improvements that would provide the greatest benefits. (author)

  5. OSMANLI BELGELERİNDE KLİŞE ZARFLAR

    Directory of Open Access Journals (Sweden)

    Muhittin Eliaçık

    2012-05-01

    Full Text Available In the Ottoman archival documents is observed many adverbs so cliche. These words are usually in Arabic, but Persian and Turkish there are others combined At various times written in millions of archiving document a common language and many words so cliche used. Among of cliche words, adverbs, occupy an important place in terms of number. In this study scanned thousands archive document and adverbs used so cliché, chosen meticulously and with the witnesses presented. In this study, first, used more than one document is selected cliche adverbs. Each adverb is a lot of samples of cartoonists did not give an example.

  6. Remote Welding, NDE and Repair of DOE Standardized Canisters

    Energy Technology Data Exchange (ETDEWEB)

    Eric Larsen; Art Watkins; Timothy R. McJunkin; Dave Pace; Rodney Bitsoi

    2006-05-01

    The U.S. Department of Energy (DOE) created the National Spent Nuclear Fuel Program (NSNFP) to manage DOE’s spent nuclear fuel (SNF). One of the NSNFP’s tasks is to prepare spent nuclear fuel for storage, transportation, and disposal at the national repository. As part of this effort, the NSNFP developed a standardized canister for interim storage and transportation of SNF. These canisters will be built and sealed to American Society of Mechanical Engineers (ASME) Section III, Division 3 requirements. Packaging SNF usually is a three-step process: canister loading, closure welding, and closure weld verification. After loading SNF into the canisters, the canisters must be seal welded and the welds verified using a combination of visual, surface eddy current, and ultrasonic inspection or examination techniques. If unacceptable defects in the weld are detected, the defective sections of weld must be removed, re-welded, and re-inspected. Due to the high contamination and/or radiation fields involved with this process, all of these functions must be performed remotely in a hot cell. The prototype apparatus to perform these functions is a floor-mounted carousel that encircles the loaded canister; three stations perform the functions of welding, inspecting, and repairing the seal welds. A welding operator monitors and controls these functions remotely via a workstation located outside the hot cell. The discussion describes the hardware and software that have been developed and the results of testing that has been done to date.

  7. TÜRKİYE’DE İŞYERİNDE PSİKOLOJİK TACİZ ORANININ VE TÜRLERİNİN BELİRLENMESİ: BİR ÖLÇEK GELİŞTİRME ÇALIŞMASI, MEASURING THE OCCURRENCE AND TYPES OF WORKPLACE BULLYING IN TURKEY: A SCALE DEVELOPMENT STUDY

    Directory of Open Access Journals (Sweden)

    Sibel GÖK

    2012-11-01

    Full Text Available Özet:Bu araştırmanın amacı, Türk çalışma hayatındapsikolojik taciz oranını ve türlerini belirlemek içinkullanılabilecek geçerli ve güvenilir bir ölçek geliştirmekolarak belirlenmiştir. Araştırma Mart-Haziran 2009 tarihleriarasında, İstanbul’da hizmet sektöründe istihdam edilen 908katılımcı ile gerçekleştirilmiştir. Veri toplama aracı olaraktarafımızdan hazırlanan soru formu kullanılmıştır. İstatistikselanalizde, açıklayıcı faktör analizi ve güvenirlik analizindenyararlanılmıştır. Açıklayıcı faktör analizi sonucunda 28maddeden oluşan dört faktörlü “İşyerinde Psikolojik TacizÖlçeği” (İPTÖ geliştirilmiştir (KMO katsayısı = 0,950,Barlettt testi χ2(378 = 10523,337, P(sigma = 0.000. Güvenirlikanalizi sonucu, ölçeğin yüksek bir iç tutarlılık katsayısınasahip olduğunu göstermiştir (α = 0,933. Katılımcıların%13,5’inin İPTÖ’ye göre işyerinde psikolojik taciz mağduruolduğu saptanmıştır. “Yukarıdan aşağıya doğru” ve “işeyönelik davranışların yöneltildiği” psikolojik taciz, en sıkkarşılaşılan türler arasında yer almıştır. Araştırma bulgularıİPTÖ’nün, bundan sonra gerçekleştirilecek ve Türk çalışmahayatında psikolojik taciz oranını ve türlerini belirlemeyihedefleyen çalışmalar için geçerli ve güvenilir bir ölçekolduğunu desteklemektedir.Abstract:The aim of the present study was to develop a validand reliable scale investigating the occurrence and types ofworkplace bullying in Turkey. The sample consisted of 908employees from the services sector in Istanbul and the datawere collected between March and June 2009 using aquestionnaire developed for this purpose. Reliability andexploratory factor analysis were used. Exploratory factoranalysis indicated that four factor scale comprising 28 itemsprovided the best fit to the data (χ2(378=10523.337, KMO=0.95,p=0.000. Reliability analysis showed that the

  8. Yağ Gülü (Rosa damascena Mill.’nde Tepe Boşluğu Katı Faz Mikro Ekstraksiyonu (HS-SPME ve Konvansiyonel Su Distilasyonu Yöntemleri ile Elde Edilen Uçucu Bileşenlerin Karşılaştırılması

    Directory of Open Access Journals (Sweden)

    Hasan BAYDAR

    2016-04-01

    Full Text Available Yağ gülü (Rosa damascena Mill., kendine özgü doğal koku bileşenleri nedeniyle parfüm ve kozmetik endüstrisinde değerlendirilen en önemli kokulu gül türüdür. Bu araştırmada, taze yağ gülü çiçeklerinin sepal (çanak yaprak, petal (taç yaprak, stamen (erkek organ ve pistil (dişi organ olarak ayrılan kısımlarının uçucu bileşenleri gaz kromatografisi/kütle spektrometresi (GC-MS ile kombine edilmiş Tepe Boşluğu-Katı Faz Mikro Ekstraksiyon (HS-SPME tekniği ile tespit edilmiştir. Ayrıca taze yağ gülü çiçekleri konvansiyonel hidro-Clevenger su distilasyonu yöntemi ile damıtılmış, elde edilen uçucu yağların bileşenleri GC-MS ile belirlendikten sonra HS-SPME sonuçları ile karşılaştırılmıştır. HS-SPME yönteminin yağ gülünde uçucu bileşenleri analizinde oldukça hassas ve etkili olduğu anlaşılmış, bir yağ gülü çiçeğinin farklı kısımların farklı koku bileşenlerine sahip olduğu belirlenmiştir. Ayrıca su distilasyonu ile elde edilen gül yağının uçucu yağ bileşenlerinin çiçeğin doğal koku bileşenlerinden farklı olduğu ve distilasyon sürecinde önemli bazı bileşenlerde değişimler ve kayıplar olduğu tespit edilmiştir. Taze gül çiçeğinin en önemli bileşeni olan feniletil alkol çiçeğin en fazla pembe renkli petallerinde (taç yapraklarında, gül yağında varlığı istenmeyen metil öjenol ise çiçeğin en fazla stamenlerinde (erkek organlarında bulunduğu belirlenmiştir.

  9. TERM OF LOCALIZATION IN THE CLASSICAL SCHOOL POETRY AND IN BÂKÎ ’S DIVAN SOME LOCAL FACTORS DİVAN ŞİİRİNDE MAHALLİLEŞME KAVRAMI VE BÂKÎ DİVANI’NDA BAZI MAHALLÎ UNSURLAR

    Directory of Open Access Journals (Sweden)

    Mehtap ERDOĞAN

    2009-08-01

    Full Text Available Generaly it is used different expression like current, movement, trend, manner, style or form for localization which is defined that local geography, social life and true to life reflect to poem, simplification of language and trending use local form of poetry. It hasn’t gain certainty if it could qualify as a current. İn this work, we examine if localization could being defined as a current. But we come to a decision about such a sentimental matter which many researchers look uncertainly and we it to readers decision. İn the second part of work Baki’s Divan, one of the classicial school poetry’s achievements which localization shows itself in most beatiful and most outstanding is examined and given place to local factors which is made firm. Thus it is worked to be proved that classical school poetry is poems wasn’t far from society which they had lived and classical school poetry isn’t a literature which is based on dreams felite on the contrary to pretensions. Genel olarak, yaşanılan coğrafyanın, sosyal hayatın, gerçek olayların şiire aksetmesi, dilde sadeleşme ve yerli nazım biçimlerini kullanmaya yönelme olarak tanımlanan mahallileşme için akım, hareket, cereyan, eğilim, tarz ya da üslup gibi farklı ifadelerin kullanılmaktadır. Onun bir akım olarak nitelenip nitelenemeyeceği konusu kesinlik kazanmamıştır. Biz, bu çalışmada mahallileşmenin bir akım olarak değerlendirilip değerlendirlemeyeceği üzerinde durduk. Ancak birçok değerli araştırmacının şüpheyle yaklaştığı böyle hassas bir konuda net bir hükme varmayıp kararı okuyuculara bıraktık. Çalışmanın ikinci bölümünde ise iddia edilenin aksine divan şairlerinin yaşadıkları topluma uzak kalmadıklarının, divan edebiyatının yalnızca yüksek zümrenin hayallerine dayalı bir edebiyat olmadığının güzel bir kanıtı olan mahallileşmenin, kendini en güzel ve en belirgin bir şekilde gösterdiği divan edebiyatı

  10. MARMARA ÜNİVERSİTESİ’NDE MUHASEBE EĞİTİMİ ALAN ÖĞRENCİLERİN MUHASEBE ALANINA BAKIŞ AÇILARININ DEĞERLENDİRİLMESİNE YÖNELİK BİR ARAŞTIRMA-A RESEARCH FOR THE EVALUATION OF THE STANDPOINT OF THE ACCOUNTING STUDENTS IN RESPECT OF THE FIELD OF ACCOUNTING AT MA

    Directory of Open Access Journals (Sweden)

    Hakan ÇELENK

    2012-06-01

    Full Text Available Ülkemizde muhasebe eğitimi lisans, yüksek lisans ve doktora düzeyinde birçok üniversitede verilmektedir. Öğrencilerin almış oldukları muhasebe eğitimi hem iş dünyası açısından hem de akademik açıdan önemli bir bilgi birikimi sunmaktadır. Ancak öğrencilerin aldıkları muhasebe eğitiminden sonra muhasebeye veya muhasebe alanına karşı tutumları ve muhasebeye ilişkin algıları bilinmeden verilen eğitimin etkileri, başarısı ve sonuçları hakkında bir bilgi sahibi olunamamaktadır. Bu bağlamda Marmara Üniversitesi İktisadi ve İdari Bilimler Fakültesi İşletme Bölümünde lisans ve lisansüstü (yüksek lisans ve doktora eğitimi alan öğrencilerin muhasebe eğitimi üzerine bakış açılarını ölçmeye yönelik bir anket çalışması yapılmıştır. Ankette yöneltilen sorular öğrencilerin; muhasebeye, muhasebe eğitimine, muhasebede hoca faktörüne ve muhasebe ile ilgili mesleklere ilişkin bakış açılarını değerlendirmeye yönelik olarak belirlenmiştir. Anket çalışmasından elde edilen veriler istatistiksel analizlere tabi tutulmuş ve sonuçlar yorumlanmıştır.-In our country, accounting education is given in undergraduate, graduate and doctoral levels in many universities. Accounting education that has been received by the students provides significant knowledge in terms of both business and academic. However, it is not possible to obtain any information pertaining to the effects, success and results of the education without knowing the students’ attitude and perception in respect of the accounting and field of accounting. In this context, a survey study was conducted for the evaluation of the standpoint of the undergraduate and graduate (MA and Ph.D. students in the respect of the field of accounting at the Department of Business of Marmara University Faculty of Economics and Administrative Sciences. Questions that have been asked in the survey were determined to evaluate the

  11. YÜKSEK PERFORMANSLI İNSAN KAYNAKLARI YÖNETİMİ UYGULAMALARI, PSİKOLOJİK GÜÇLENDİRME VE DUYGUSAL BAĞLILIK ARASINDAKİ İLİŞKİLERİN İNCELENMESİ: TEKSTİL SEKTÖRÜNDE BİR ARAŞTIRMA

    Directory of Open Access Journals (Sweden)

    Hüseyin YILMAZ

    2014-10-01

    Full Text Available ÖZ: Bu araştırmanın amacı, yüksek performanslı insan kaynakları yönetimi boyutlarının psikolojik güçlendirme ve örgütsel bağlılık üzerine etkilerinin incelenmesidir. Araştırma kapsamındaki bağımlı ve bağımsız değişkenler arasındaki ilişkiler, korelasyon ve regresyon analizleri ile ortaya konulmaya çalışılmıştır. Araştırma ile yüksek performanslı insan kaynakları yönetimi boyutlarından kapsamlı eğitim verilmesi, duyarlılık içerisinde personel seçimi, katılım ve iletişimin teşvik edilmesi ile içsel kariyer fırsatları sunulmasının psikolojik güçlendirmeyi %1 anlamlılık düzeyinde ve pozitif yönde etkilediği anlaşılmaktadır. Elde edilen araştırma sonuçları, yüksek performanslı insan kaynakları yönetimi boyutlarının, duygusal bağlılık üzerindeki etkisinin psikolojik güçlendirme üzerindeki etkisinden daha kuvvetli olduğunu ortaya koymaktadır. Anahtar Kelimeler: İnsan Kaynakları, Yüksek Performanslı İnsan Kaynakları Yönetimi Uygulamaları, Psikolojik Güçlendirme, Duygusal Bağlılık. ABSTRACT: The purpose of this study is to investigate the effects of high-performance dimensions of human resources management on psychological empowerment and organizational commitment. The relationship between dependent and independent variables in the study were tried to be introduced with correlation and regression analyzes. Research has reached that providing comprehensive training about high-performance human resource management dimension, the selection of staff in sensitivity, participation and communication by promoting internal career opportunities for the provision of psychological empowerment have 1% significance level and a positive impact. The research results obtained that the impact of human resource management dimensions of a high performance on the emotional commitment is stronger than the impact of psychological empowerment reveals. Keywords: Human Resources

  12. BİLGİ VE İLETİŞİM TEKNOLOJİLERİNİ KULLANMA DÜZEYİ İLE FİRMA PERFORMANSI ARASINDAKİ İLİŞKİ: İMALAT SEKTÖRÜNDE BİR UYGULAMA

    Directory of Open Access Journals (Sweden)

    Selahattin KAYNAK

    2017-10-01

    Full Text Available Öz Bilgi ekonomisinin temel göstergelerinden biri olan bilgi ve iletişim teknolojileri (BİT, firmalar için rekabet gücünün temel unsuru haline gelmiştir. İmalat sektöründe faaliyet gösteren firmaların bilgi ve iletişim teknolojilerini kullanma düzeyleri ile firma performansı arasındaki ilişkileri incelemek çalışmanın amacını oluşturmaktadır. Veriler yüz yüze görüşme yöntemiyle elde edilmiştir. Çalışma sonucunda işletmelerin tüketici taleplerine hızlı cevap verebilme, hizmet kalitesini arttırma, ticari işlemlerin yürütülmesinde kolaylık ve müşteri ilişkilerini geliştirme amacıyla bilgi ve iletişim teknolojilerini kullandığı belirlenmiştir. BİT’in firmaların verimliliğini arttırarak firmaları daha rekabetçi bir pozisyona taşıdığı ve genel performansı önemli ölçüde geliştirdiği sonucuna da varılmıştır. Ayrıca küçük ve orta ölçekli işletmelerin BİT yatırım maliyetlerinin yüksek olmasına daha fazla önem verdikleri, bilgi teknolojilerine daha fazla yatırım yapan firmaların karlılık ve büyüme düzeylerinin daha yüksek olduğu elde edilen bulgular arasında yer almaktadır. Abstract Information and communication technology (ICT, which is the main indicators of the knowledge economy, has become main factors of competitive power for the firm. Aim of the study is to examine relationships between firms’ usage level of ICT and firm performance operating in the manufacturing sector. The data have been obtained from face-to-face method. The result of the study show that ICT is used for variety of reasons such as respond quickly to consumer demand, increase the quality of services, customer relations development, ease of trade process. Another result concluded in this study is that ICT carries the firm to a more competitive position by increasing the firm productivity and develops general performance. Besides, it was found that high invesment cost of ICT is

  13. Miniaturized Time Domain Terahertz Non Destructive Evaluation for In-Orbit Inspection of Inflatable Habitats and Thermal Protection Systems, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — Picometrix's time-domain terahertz (TD-THz) non-destructive evaluation (NDE) technology could be used to inspect space flight structures such as inflatable space...

  14. Miniaturized Time Domain Terahertz Non Destructive Evaluation for In-Orbit Inspection of Inflatable Habitats and Thermal Protection Systems, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — Picometrix's time-domain terahertz (TD-THz) non-destructive evaluation (NDE) technology could be used to inspect space flight structures such as inflatable space...

  15. WRAP Module 1 data management system (DMS) software design description (SDD)

    International Nuclear Information System (INIS)

    Weidert, J.R.

    1996-01-01

    Revision 2 of the Waste Receiving and Processing (WRAP) Module 1 Data Management System (DMS) Preliminary Software Design Description (PSDD) provides a high-level design description of the system. The WRAP 1 DMS is required to collect, store, and report data related to certification, tracking, packaging, repackaging, processing, and shipment of waste processed or stored at the WRAP 1 facility. The WRAP 1 DMS SDD is used as the primary medium for communication software design information. This release provides design descriptions for the following process modules produced under Phase 1 of the development effort: Receiving Drum or Box Containers Process Routing and Picklists; Waste Inventory by Location and/or Container Relationships; LLW Process Glovebox Facility Radiologic Material Inventory Check (partial); Shipping (partial production); Drum or Box NDE Operations; and Drum or Box NDA Operations Data Review (partial production). In addition, design descriptions are included for the following process modules scheduled for development under Phases 2 and 3: Activity Comment; LLW RWM Glovebox Sample Management; TRU Process Glovebox; TRU RWM Glovebox; and TRUPACT Processing. Detailed design descriptions for Reports and Facility Metrics have also been provided for in Revision 2 of this document

  16. A modified conjugate gradient method based on the Tikhonov system for computerized tomography (CT).

    Science.gov (United States)

    Wang, Qi; Wang, Huaxiang

    2011-04-01

    During the past few decades, computerized tomography (CT) was widely used for non-destructive testing (NDT) and non-destructive examination (NDE) in the industrial area because of its characteristics of non-invasiveness and visibility. Recently, CT technology has been applied to multi-phase flow measurement. Using the principle of radiation attenuation measurements along different directions through the investigated object with a special reconstruction algorithm, cross-sectional information of the scanned object can be worked out. It is a typical inverse problem and has always been a challenge for its nonlinearity and ill-conditions. The Tikhonov regulation method is widely used for similar ill-posed problems. However, the conventional Tikhonov method does not provide reconstructions with qualities good enough, the relative errors between the reconstructed images and the real distribution should be further reduced. In this paper, a modified conjugate gradient (CG) method is applied to a Tikhonov system (MCGT method) for reconstructing CT images. The computational load is dominated by the number of independent measurements m, and a preconditioner is imported to lower the condition number of the Tikhonov system. Both simulation and experiment results indicate that the proposed method can reduce the computational time and improve the quality of image reconstruction. Copyright © 2010 ISA. Published by Elsevier Ltd. All rights reserved.

  17. APNEA/WIT system nondestructive assay capability evaluation plan for select accessibly stored INEL RWMC waste forms

    International Nuclear Information System (INIS)

    Becker, G.K.

    1997-01-01

    Bio-Imaging Research Inc. (BIR) and Lockheed Martin Speciality Components (LMSC) are engaged in a Program Research and Development Agreement and a Rapid Commercialization Initiative with the Department of Energy, EM-50. The agreement required BIR and LMSC to develop a data interpretation method that merges nondestructive assay and nondestructive examination (NDA/NDE) data and information sufficient to establish compliance with applicable National TRU Program (Program) waste characterization requirements and associated quality assurance performance criteria. This effort required an objective demonstration of the BIR and LMSC waste characterization systems in their standalone and integrated configurations. The goal of the test plan is to provide a mechanism from which evidence can be derived to substantiate nondestructive assay capability and utility statement for the BIT and LMSC systems. The plan must provide for the acquisition, compilation, and reporting of performance data thereby allowing external independent agencies a basis for an objective evaluation of the standalone BIR and LMSC measurement systems, WIT and APNEA respectively, as well as an expected performance resulting from appropriate integration of the two systems. The evaluation is to be structured such that a statement regarding select INEL RWMC waste forms can be made in terms of compliance with applicable Program requirements and criteria

  18. Safety assessment of primary system components at the USNRC

    Energy Technology Data Exchange (ETDEWEB)

    Serpan, C Z; Chen, C Y; Taboada, A

    1988-12-31

    This document deals with the safety assessment in nuclear reactor components at the USNRC. The USNRC regulations and requirements concerning nuclear reactor design and operations are presented, together with guides and standards which describe how the actions should be implemented. The safety assessment relies on fracture analysis and Non Destructive Examination (NDE). (TEC).

  19. TÜRK DÖKÜM SANAYİ FİRMALARI VE YABANCI PARTNERLERİ ARASINDAKİ ORTAK GİRİŞİM NEDENLERİ: KAYNAK BAĞIMLILIĞI TEORİSİ VE RAKİP GÖRÜŞLER ÇERÇEVESİNDE BİR DEĞERLENDİRME-MOTIVES FOR JOINT VENTURES BETWEEN TURKISH CASTING INDUSTRY FIRMS AND THEIR FOREIGN PARTNERS

    Directory of Open Access Journals (Sweden)

    Ceren G. ARTUNER

    2012-07-01

    Full Text Available Döküm sanayinde yabancı firmalarla yerli firmalar arasında ortak girişim yoluyla oluşturulan yeni yapılar içerisinde faaliyetine devam eden üç firma nezdinde gerçekleştirilen durum çalışması aracılığıyla söz konusu ortak girişim olgularına yol açtığı düşünülen temel motivasyonların belirlenmesi amaçlanmış ve Kaynak Bağımlılığı Teorisi’nin Türk Döküm Sanayi’nde yabancı ortaklarla yerli firmalar arasında gerçekleşen ortak girişim olgularını tek başına açıklayıcı gücü sorgulanmıştır.Yürütülen araştırma neticesinde, Kaynak Bağımlılığı Teorisi’nin açıklayıcı gücünün söz konusu ortak girişim olgularını tek başına açıklamakta yetersiz kaldığı, oluşturulan dört teorik çatı arasında açıklayıcı gücü en yüksek yaklaşımın Firma Teorisi olduğu ve Firma Teorisi’nin de Türk Döküm Sanayi’nde örneklemimiz dahilinde ele aldığımız ortak girişim olgularını diğer üç teorik çatının yardımıyla açıkladığı tespit edilmiştir.-Through the medium of case studies covering three casting firms which pursue their operations after being involved in newly established structures by joint ventures between foreign and national companies, it is aimed to reveal the underlying motivations considered as responsible for the joint venture phenomena. Accordingly, the explanatory power of the Resource Dependence Theory in explaining joint venture phenomena with foreign partners as a single theory in Turkish Casting Industry has been tested.As a result of the undertaken research, we have concluded that the explanatory power of the Resource Dependence Theory wasn’t strong enough to explain by itself the joint venture phenomena in question and that the propositions of the Firm Theory have found the strongest support among these four theoretical frames. However, it was stated that the Firm Theory explains the joint venture phenomena within our sample

  20. A Visualization Method for Corrosion Damage on Aluminum Plates Using an Nd:YAG Pulsed Laser Scanning System.

    Science.gov (United States)

    Lee, Inbok; Zhang, Aoqi; Lee, Changgil; Park, Seunghee

    2016-12-16

    This paper proposes a non-contact nondestructive evaluation (NDE) technique that uses laser-induced ultrasonic waves to visualize corrosion damage in aluminum alloy plate structures. The non-contact, pulsed-laser ultrasonic measurement system generates ultrasonic waves using a galvanometer-based Q-switched Nd:YAG laser and measures the ultrasonic waves using a piezoelectric (PZT) sensor. During scanning, a wavefield can be acquired by changing the excitation location of the laser point and measuring waves using the PZT sensor. The corrosion damage can be detected in the wavefield snapshots using the scattering characteristics of the waves that encounter corrosion. The structural damage is visualized by calculating the logarithmic values of the root mean square (RMS), with a weighting parameter to compensate for the attenuation caused by geometrical spreading and dispersion of the waves. An intact specimen is used to conduct a comparison with corrosion at different depths and sizes in other specimens. Both sides of the plate are scanned with the same scanning area to observe the effect of the location where corrosion has formed. The results show that the damage can be successfully visualized for almost all cases using the RMS-based functions, whether it formed on the front or back side. Also, the system is confirmed to have distinguished corroded areas at different depths.

  1. ORTA VE DOĞU AVRUPA ÜLKELERİ AB’YE GİREREK ÜRETİM VE FİNANS KAPİTALİZMİNDE İLERLEME KAYDETTİLER Mİ? (WERE CENTRAL AND EASTERN EUROPEAN COUNTRIES ABLE TO MAKE PROGRESS BY BEING FULL MEMBERS OF THE EU?

    Directory of Open Access Journals (Sweden)

    Bülent DOĞRU

    2013-10-01

    Full Text Available ÖZ: Orta ve Doğu Avrupa Ülkeleri (CEE Estonya, Slovakya, Slovenya, Letonya, Polonya, Litvanya, Çek Cumhuriyeti ve Macaristan Avrupa Birliği ile sürdürdükleri müzakere sürecini bitirerek, 1 Mayıs 2004 tarihinde toplu halde Birliğe tam üye oldular. Çoğunluğu eski Sosyalist Bloku üyeleri olan bu ülkeler, AB’ye girerek kapitalist piyasa nimetlerinden faydalanmaya çalıştılar. Bu çalışma, geçen yedi yıllık süreçte bu ülkelerin amaçlarına hangi ölçüde ulaştıklarını incelemektedir. Çalışmada kullanılan kapitalizmin temel göstergeleri Mehmet Altan’ın “Kapitalizm Bu Köye Uğramadı” çalışmasında geçen ve Türkiye için kabul ettiği makroekonomik değişkenlerdir. Bu değişkenler, özel sektör istihdam oranı, özel sektör üretiminin toplam üretim içindeki payı, ticaretin toplam hâsıla içindeki payı, yabancı banka sayısındaki artış, özel yatırımların toplam hâsıla içindeki payı, şehirleşme oranı, borsa kapitalizasyonudur. Özel sektör ve yabancı sermaye itişli bu makroekonomik değişkenlerin CEE ülkeler için 2004 sonrası dönemde pozitif yönde anlamlı bir farklılaşma gösterip göstermediği analiz edilmiştir. Elde edilen sonuçlara göre, AB’ye girmek bu ülkelere ticaretlerini arttırma imkânı tanımış ve ticaret kapitalizminde ciddi bir ilerleme kaydetmelerine sebep olmuştur. Ancak üretim kapitalizmi ve finans kapitalizmi alanlarında ilerlemenin olduğuna dair güçlü delil bulunamamıştır. Anahtar Kelimeler: Kapitalizm, Bölgesel Ekonomik Topluluklar, Orta ve Doğu Avrupa Ülkeleri Ekonomileri. ABSTRACT: Central and Eastern European countries, Estonia, Slovakia, Slovenia, Latvia, Poland, Lithuania, the Czech Republic and Hungary, became full members of the European Union on 1 May 2004 after completing the process of accession negotiations. These countries, mostly past member of the Communist Bloc, tried to utilize the benefits of the

  2. The Application of Principal Component Analysis Using Fixed Eigenvectors to the Infrared Thermographic Inspection of the Space Shuttle Thermal Protection System

    Science.gov (United States)

    Cramer, K. Elliott; Winfree, William P.

    2006-01-01

    The Nondestructive Evaluation Sciences Branch at NASA s Langley Research Center has been actively involved in the development of thermographic inspection techniques for more than 15 years. Since the Space Shuttle Columbia accident, NASA has focused on the improvement of advanced NDE techniques for the Reinforced Carbon-Carbon (RCC) panels that comprise the orbiter s wing leading edge. Various nondestructive inspection techniques have been used in the examination of the RCC, but thermography has emerged as an effective inspection alternative to more traditional methods. Thermography is a non-contact inspection method as compared to ultrasonic techniques which typically require the use of a coupling medium between the transducer and material. Like radiographic techniques, thermography can be used to inspect large areas, but has the advantage of minimal safety concerns and the ability for single-sided measurements. Principal Component Analysis (PCA) has been shown effective for reducing thermographic NDE data. A typical implementation of PCA is when the eigenvectors are generated from the data set being analyzed. Although it is a powerful tool for enhancing the visibility of defects in thermal data, PCA can be computationally intense and time consuming when applied to the large data sets typical in thermography. Additionally, PCA can experience problems when very large defects are present (defects that dominate the field-of-view), since the calculation of the eigenvectors is now governed by the presence of the defect, not the good material. To increase the processing speed and to minimize the negative effects of large defects, an alternative method of PCA is being pursued when a fixed set of eigenvectors is used to process the thermal data from the RCC materials. These eigen vectors can be generated either from an analytic model of the thermal response of the material under examination, or from a large cross section of experimental data. This paper will provide the

  3. Derleme Sözlüğünde Dokumacılık Mesleği İle İlgili Söz Varlığı Existent Words Used For Weaving Occupation From The Dictionary Of Collected Words

    Directory of Open Access Journals (Sweden)

    Serpil SOYDAN

    2013-07-01

    ılığın ortaya çıkmasını sağlamıştır. Bu zanaat zamanla gelişmiştir. İnsanlar tarihi olarak tespit edilemeyen dönemlerde keçi yününden bugün düz dokuma tekniği adı verilen göçebe tenteleri yapmışlardır.Daha sonraki dönemlerde Alacahöyük’te arkeolojik kazılarda bulunan gümüş kirmanlar (M.Ö.3000-2000, Gordion’da bulunan Frigyalılara ait sumak ve cicim dokuma parçaları, Konya’nın Çumra ilçesi merkezinin kuzeyindeki Çatalhöyük’te yapılan kazılarda Neolitik çağa (Cilalı Taş çağı ait (M.Ö 6000dokuma parçaları dokumacılığın Anadolu’da geliştiğini göstermektedir. Bu elimize geçen parçalar sayesinde dokumacılık tarihini Anadolu’da M.Ö. VII. yüzyıla kadar indirebilmekteyiz.1071 yılında Türkler Anadolu’ya geldiklerinde ileri düzeyde bir dokumacılık sanatıyla karşılaşmışlardır. Selçuklu İmparatorluğu döneminde de Türk kilim ve halı dokumacılığı gelişmeye başlamıştır. Birçoğu halen belgelenememiş sayısız halı parçasının 13 ve 14. yüzyıllardan kalma en eski Selçuklu halıları olduğu tahmin edilmektedir.Çalışmamızda Türkiye’de halk ağzından derlenmiş olan Derleme Sözlüğünde yer alan Dokumacılık mesleği ile ilgili söz varlığı incelenmiş, konuyla ilgili tarihî ve çağdaş kaynaklar taranmış, tespit edilen söz varlıkları dokumacılıkta kullanılan malzeme ismi, dokumacılıkta kullanılan alet ve araç ismi, dokumacılıkta kullanılan fiiller, dokumacılıkta kullanılan motif ve işlemeler, dokumada çalışan kişilere verilen isimler, dokumacılıkta kullanılan renk isimleri olmak üzere altı başlık altında gruplandırılmıştır. Ayrıca tespit edilen bu söz varlığı içerisinde ödünçleme kelimeler varsa bu kelimelerin kökenleri hakkında da bilgi verilmeye çalışılmıştır.

  4. Monitoring system for the quality assessment in additive manufacturing

    Energy Technology Data Exchange (ETDEWEB)

    Carl, Volker, E-mail: carl@t-zfp.de [Carl Messtechnik, Thyssenstrasse 183a, 46535 Dinslaken (Germany)

    2015-03-31

    Additive Manufacturing (AM) refers to a process by which a set of digital data -representing a certain complex 3dim design - is used to grow the respective 3dim real structure equal to the corresponding design. For the powder-based EOS manufacturing process a variety of plastic and metal materials can be used. Thereby, AM is in many aspects a very powerful tool as it can help to overcome particular limitations in conventional manufacturing. AM enables more freedom of design, complex, hollow and/or lightweight structures as well as product individualisation and functional integration. As such it is a promising approach with respect to the future design and manufacturing of complex 3dim structures. On the other hand, it certainly calls for new methods and standards in view of quality assessment. In particular, when utilizing AM for the design of complex parts used in aviation and aerospace technologies, appropriate monitoring systems are mandatory. In this respect, recently, sustainable progress has been accomplished by joining the common efforts and concerns of a manufacturer Additive Manufacturing systems and respective materials (EOS), along with those of an operator of such systems (MTU Aero Engines) and experienced application engineers (Carl Metrology), using decent know how in the field of optical and infrared methods regarding non-destructive-examination (NDE). The newly developed technology is best described by a high-resolution layer by layer inspection technique, which allows for a 3D tomography-analysis of the complex part at any time during the manufacturing process. Thereby, inspection costs are kept rather low by using smart image-processing methods as well as CMOS sensors instead of infrared detectors. Moreover, results from conventional physical metallurgy may easily be correlated with the predictive results of the monitoring system which not only allows for improvements of the AM monitoring system, but finally leads to an optimisation of the quality

  5. Development of wall thinning screening system and its application to a commercial nuclear power plant

    International Nuclear Information System (INIS)

    Ryu, Kyung Ha; Hwang, Il Soon; Kim, Ji Hyun

    2013-01-01

    Highlights: • Wall loss screening system (WalSS) has been developed based on ES-DCPD method. • Screening criteria was established based on the thinning of the actual shape that occur in the power plant. • With the criteria, the WalSS gives priority of the need for inspection. • This technique was successfully applied to commercial nuclear power plant. - Abstract: A new non-destructive evaluation (NDE) method has been developed for metal pipes for the detection wall thinning. The method has been showed to be suitable for applications to electric power generation plants where flow accelerated corrosion (FAC) of carbon steel piping is a significant cause of increased maintenance and plant personnel casualty. The wall thinning screening system (WalSS) was developed in two major phases. In the first phase, the equipotential switching direct current potential drop (ES-DCPD) method was developed for piping wall (Ryu et al., 2008a, 2010). In the second phase, in this paper, a quantitative detection criteria was developed. The relative ES-DCPD change of 3.8% has been defined as the screening criteria for wall thinning schematization. This criteria means that the component with measured ES-DCPD change greater than 3.8% is called for a more comprehensive examination. In the criteria development, all variables were taken into consideration based on commercial plant piping inspection data such as initial thickness distributions, wall thinning shape and nominal thickness. The developed WalSS based on ES-DCPD was applied to a moisture separator reheater (MSR) drain line of a commercial nuclear power plant (NPP) during a scheduled overhaul. The measured ES-DCPD change was 2.16%, which is lower than the ES-DCPD criteria, identifying the pipe having adequate wall thickness. This is confirmed by site thickness inspection using ultrasonic technique (UT)

  6. System Budgets

    DEFF Research Database (Denmark)

    Jeppesen, Palle

    1996-01-01

    The lecture note is aimed at introducing system budgets for optical communication systems. It treats optical fiber communication systems (six generations), system design, bandwidth effects, other system impairments and optical amplifiers.......The lecture note is aimed at introducing system budgets for optical communication systems. It treats optical fiber communication systems (six generations), system design, bandwidth effects, other system impairments and optical amplifiers....

  7. Guided Wave Sensing In a Carbon Steel Pipe Using a Laser Vibrometer System

    Science.gov (United States)

    Ruíz Toledo, Abelardo; Salazar Soler, Jordi; Chávez Domínguez, Juan Antonio; García Hernández, Miguel Jesús; Turó Peroy, Antoni

    2010-05-01

    Non-Destructive Evaluation (NDE) techniques have achieved a great development during the last decades as a valuable tool for material characterization, manufacturing control and structural integrity tests. Among these tools, the guided wave technology has been rapidly extended because it reduces inspection time and costs compared to the ordinary point by point testing in large structures, as well as because of the possibility of inspecting under insulation and coating conditions. This fast development has motivated the creation of several inspection and material characterization systems including different technologies which can be combined with this technique. Different measurements systems based on laser techniques have been presented in order to inspect pipes, plates and diverse structures. Many of them are experimental systems of high cost and complexity which combine the employment of a laser for generation of waves in the structure and an interferometer for detection. Some of them employ air-coupled ultrasound generation transducers, with high losses in air and which demand high energy for exciting waves in materials of high stiffness. The combined employment of a commercial vibrometer system for Lamb wave sensing in plates has been successfully shown in the literature. In this paper we present a measurement system based on the combined employment of a piezoelectric wedge transducer and a laser vibrometer to sense guided acoustic waves in carbon steel pipes. The measurement system here presented is mainly compounded of an angular wedge transducer, employed to generate the guided wave and a commercial laser vibrometer used in the detection process. The wedge transducer is excited by means of a signal function generator whose output signal has been amplified with a power signal amplifier. A high precision positioning system is employed to place the laser beam at different points through the pipe surface. The signal detected by the laser vibrometer system is

  8. Mutual Inductance Problem for a System Consisting of a Current Sheet and a Thin Metal Plate

    Science.gov (United States)

    Fulton, J. P.; Wincheski, B.; Nath, S.; Namkung, M.

    1993-01-01

    Rapid inspection of aircraft structures for flaws is of vital importance to the commercial and defense aircraft industry. In particular, inspecting thin aluminum structures for flaws is the focus of a large scale R&D effort in the nondestructive evaluation (NDE) community. Traditional eddy current methods used today are effective, but require long inspection times. New electromagnetic techniques which monitor the normal component of the magnetic field above a sample due to a sheet of current as the excitation, seem to be promising. This paper is an attempt to understand and analyze the magnetic field distribution due to a current sheet above an aluminum test sample. A simple theoretical model, coupled with a two dimensional finite element model (FEM) and experimental data will be presented in the next few sections. A current sheet above a conducting sample generates eddy currents in the material, while a sensor above the current sheet or in between the two plates monitors the normal component of the magnetic field. A rivet or a surface flaw near a rivet in an aircraft aluminum skin will disturb the magnetic field, which is imaged by the sensor. Initial results showed a strong dependence of the flaw induced normal magnetic field strength on the thickness and conductivity of the current-sheet that could not be accounted for by skin depth attenuation alone. It was believed that the eddy current imaging method explained the dependence of the thickness and conductivity of the flaw induced normal magnetic field. Further investigation, suggested the complexity associated with the mutual inductance of the system needed to be studied. The next section gives an analytical model to better understand the phenomenon.

  9. Ventilation systems

    International Nuclear Information System (INIS)

    Gossler

    1980-01-01

    The present paper deals with - controlled area ventilation systems - ventilation systems for switchgear-building and control-room - other ventilation systems for safety equipments - service systems for ventilation systems. (orig./RW)

  10. Embedded Systems

    Indian Academy of Sciences (India)

    Embedded system, micro-con- troller ... Embedded systems differ from general purpose computers in many ... Low cost: As embedded systems are extensively used in con- .... operating systems for the desktop computers where scheduling.

  11. Coupling photon Monte Carlo simulation and CAD software. Application to X-ray nondestructive evaluation

    International Nuclear Information System (INIS)

    Tabary, J.; Gliere, A.

    2001-01-01

    A Monte Carlo radiation transport simulation program, EGS Nova, and a computer aided design software, BRL-CAD, have been coupled within the framework of Sindbad, a nondestructive evaluation (NDE) simulation system. In its current status, the program is very valuable in a NDE laboratory context, as it helps simulate the images due to the uncollided and scattered photon fluxes in a single NDE software environment, without having to switch to a Monte Carlo code parameters set. Numerical validations show a good agreement with EGS4 computed and published data. As the program's major drawback is the execution time, computational efficiency improvements are foreseen. (orig.)

  12. WASTE PACKAGE OPERATIONS FY99 CLOSURE METHODS REPORT

    Energy Technology Data Exchange (ETDEWEB)

    M. C. Knapp

    1999-09-23

    The waste package (WP) closure weld development task is part of a larger engineering development program to develop waste package designs. The purpose of the larger waste package engineering development program is to develop nuclear waste package fabrication and closure methods that the Nuclear Regulatory Commission will find acceptable and will license for disposal of spent nuclear fuel (SNF), non-fuel components, and vitrified high-level waste within a Monitored Geologic Repository (MGR). Within the WP closure development program are several major development tasks, which, in turn, are divided into subtasks. The major tasks include: WP fabrication development, WP closure weld development, nondestructive examination (NDE) development, and remote in-service inspection development. The purpose of this report is to present the objectives, technical information, and work scope relating to the WP closure weld development.and NDE tasks and subtasks and to report results of the closure weld and NDE development programs for fiscal year 1999 (FY-99). The objective of the FY-99 WP closure weld development task was to develop requirements for closure weld surface and volumetric NDE performance demonstrations, investigate alternative NDE inspection techniques, and develop specifications for welding, NDE, and handling system integration. In addition, objectives included fabricating several flat plate mock-ups that could be used for NDE development, stress relief peening, corrosion testing, and residual stress testing.

  13. WASTE PACKAGE OPERATIONS FY-99 CLOSURE METHODS REPORT

    International Nuclear Information System (INIS)

    M. C. Knapp

    1999-01-01

    The waste package (WP) closure weld development task is part of a larger engineering development program to develop waste package designs. The purpose of the larger waste package engineering development program is to develop nuclear waste package fabrication and closure methods that the Nuclear Regulatory Commission will find acceptable and will license for disposal of spent nuclear fuel (SNF), non-fuel components, and vitrified high-level waste within a Monitored Geologic Repository (MGR). Within the WP closure development program are several major development tasks, which, in turn, are divided into subtasks. The major tasks include: WP fabrication development, WP closure weld development, nondestructive examination (NDE) development, and remote in-service inspection development. The purpose of this report is to present the objectives, technical information, and work scope relating to the WP closure weld development.and NDE tasks and subtasks and to report results of the closure weld and NDE development programs for fiscal year 1999 (FY-99). The objective of the FY-99 WP closure weld development task was to develop requirements for closure weld surface and volumetric NDE performance demonstrations, investigate alternative NDE inspection techniques, and develop specifications for welding, NDE, and handling system integration. In addition, objectives included fabricating several flat plate mock-ups that could be used for NDE development, stress relief peening, corrosion testing, and residual stress testing

  14. Thermal systems; Systemes thermiques

    Energy Technology Data Exchange (ETDEWEB)

    Lalot, S. [Valenciennes Univ. et du Hainaut Cambresis, LME, 59 (France); Lecoeuche, S. [Ecole des Mines de Douai, Dept. GIP, 59 - Douai (France)]|[Lille Univ. des Sciences et Technologies, 59 - Villeneuve d' Ascq (France); Ahmad, M.; Sallee, H.; Quenard, D. [CSTB, 38 - Saint Martin d' Heres (France); Bontemps, A. [Universite Joseph Fourier, LEGI/GRETh, 38 - Grenoble (France); Gascoin, N.; Gillard, P.; Bernard, S. [Laboratoire d' Energetique, Explosion, Structure, 18 - Bourges (France); Gascoin, N.; Toure, Y. [Laboratoire Vision et Robotique, 18 - Bourges (France); Daniau, E.; Bouchez, M. [MBDA, 18 - Bourges (France); Dobrovicescu, A.; Stanciu, D. [Bucarest Univ. Polytechnique, Faculte de Genie Mecanique (Romania); Stoian, M. [Reims Univ. Champagne Ardenne, Faculte des Sciences, UTAP/LTM, 51 (France); Bruch, A.; Fourmigue, J.F.; Colasson, S. [CEA Grenoble, Lab. Greth, 38 (France); Bontemps, A. [Universite Joseph Fourier, LEGI/GRETh, 38 - Grenoble (France); Voicu, I.; Mare, T.; Miriel, J. [Institut National des Sciences Appliquees (INSA), LGCGM, IUT, 35 - Rennes (France); Galanis, N. [Sherbrooke Univ., Genie Mecanique, QC (Canada); Nemer, M.; Clodic, D. [Ecole des Mines de Paris, Centre Energetique et Procedes, 75 (France); Lasbet, Y.; Auvity, B.; Castelain, C.; Peerhossaini, H. [Nantes Univ., Ecole Polytechnique, Lab. de Thermocinetiquede Nantes, UMR-CNRS 6607, 44 (France)

    2005-07-01

    This session about thermal systems gathers 26 articles dealing with: neural model of a compact heat exchanger; experimental study and numerical simulation of the thermal behaviour of test-cells with walls made of a combination of phase change materials and super-insulating materials; hydraulic and thermal modeling of a supercritical fluid with pyrolysis inside a heated channel: pre-dimensioning of an experimental study; energy analysis of the heat recovery devices of a cryogenic system; numerical simulation of the thermo-hydraulic behaviour of a supercritical CO{sub 2} flow inside a vertical tube; mixed convection inside dual-tube exchangers; development of a nodal approach with homogenization for the simulation of the brazing cycle of a heat exchanger; chaotic exchanger for the cooling of low temperature fuel cells; structural optimization of the internal fins of a cylindrical generator; a new experimental approach for the study of the local boiling inside the channels of exchangers with plates and fins; experimental study of the flow regimes of boiling hydrocarbons on a bundle of staggered tubes; energy study of heat recovery exchangers used in Claude-type refrigerating systems; general model of Carnot engine submitted to various operating constraints; the free pistons Stirling cogeneration system; natural gas supplied cogeneration system with polymer membrane fuel cell; influence of the CRN coating on the heat flux inside the tool during the wood unrolling process; transport and mixture of a passive scalar injected inside the wake of a Ahmed body; control of a laser welding-brazing process by infrared thermography; 2D self-adaptative method for contours detection: application to the images of an aniso-thermal jet; exergy and exergy-economical study of an 'Ericsson' engine-based micro-cogeneration system; simplified air-conditioning of telephone switching equipments; parametric study of the 'low-energy' individual dwelling; brief synthesis of

  15. Political Unrest and Educational Electronic Resource Usage in a Conflict Zone, Kashmir (Indian Administered Kashmir: Log Analysis as Politico Analytical Tool=Hindistan Tarafından Yönetilen Keşmir Anlaşmazlık Bölgesi’nde Siyasi Karışıklık ve Eğitimle İlgili Elektronik Kaynakların Kullanımı: Siyasi Analiz Aracı Olarak Log Analizleri

    Directory of Open Access Journals (Sweden)

    Sumeer Gul

    2013-10-01

    and conflict studies of a politically simmering area, Kashmir. The research can further be extended to analyze the impact of political normalcy on the academia of Kashmir.How normalcy acts as an indicator of enhanced e-resource usage can be studied./Elektronik kaynak kullanım analizi, kütüphane hizmetlerine yönelik olarak yapılan planlamalarda en iyi karar verme araçlarından biridir. Elektronik kaynak kullanım düzeyinin belirlenmesi, ülkelerdeki siyasi karışıklıklardan etkilenen eğitim planlamalarının yapılmasında önemli bir araç olarak nitelendirilebilir. Bu çalışma, Hindistan Keşmir Anlaşmazlık Bölgesi’ndeki elektronik kaynak kullanımını ve siyasi karışıklıkların bu kullanım üzerindeki etkisini incelemektedir.Ocak 2008 - Aralık 2010 tarihleri arasındaki anlaşmazlık döneminde Keşmir Üniversitesinde Proje Muse dergisinin makalelerinin kullanımı loglar aracılığıyla analiz edilmiştir. Barış süreci,toplumların gelişiminde her yönden büyük bir role sahiptir. Siyasi anlaşmazlık ise eğitim alanında yaşanacak gelişimin sağlanmasında büyük ölçüde engel teşkil etmektedir. Araştırmada,anlaşmazlık sürecinde Keşmirlilerin akademik davranışlarının gerçek durumu, loglar aracılığıyla ortaya konulmuştur. Araştırma, siyasi anlaşmazlığın genel olarak eğitim alanında, özel olarak elektronik kaynak kullanımında olumsuz etkiler yarattığı gerçeğini yansıtmıştır. Bu araştırma,Keşmir Anlaşmazlık Bölgesi’nde yaşanan ve eğitim alanında olumsuz etkiler yaratan siyasi anlaşmazlığın etkilerinin azaltılmasında eğitimle ilgili politikacılara fikir vermesi bakımından önemlidir. Ayrıca bu araştırma log analizlerinin, siyasi anlaşmazlığın akademik çevrelere yönelik ortaya koyduğu olumsuz etkilerin saptanmasında yardımcı olacağını vurgulamaktadır. Araştırma, Keşmir’de siyasi anlaşmazlık ve eğitim arasındaki ilişkiyi ortaya koyan ilk

  16. Data Systems vs. Information Systems

    OpenAIRE

    Amatayakul, Margret K.

    1982-01-01

    This paper examines the current status of “hospital information systems” with respect to the distinction between data systems and information systems. It is proposed that the systems currently existing are incomplete data dystems resulting in ineffective information systems.

  17. Perú, cambio climático y enfermedades no trasmisibles: ¿Dónde estamos y a dónde vamos?

    Directory of Open Access Journals (Sweden)

    José L Avilez

    2016-01-01

    Full Text Available El mundo atraviesa una crisis de enfermedades no transmisibles (ENT junto con un panorama de volatilidad climática. El 99% de la carga en salud del cambio climático será asumida por los países en vías de desarrollo. La mejor oportunidad que tiene el Perú frente a la inminencia del cambio climático recae en desarrollar políticas enfocadas en crear cobeneficios mediante las estrategias de mitigación y adaptación al cambio climático que, a la vez, representen mejoras sobre el panorama de las ENT y la salud en general. En este artículo presentamos los compromisos asumidos por el Perú en estrategias de mitigación de emisiones de gases de efecto invernadero (GEI; identificamos oportunidades en salud pública para el Perú en el Acuerdo de París de la 21.ª Conferencia de las Partes (COP21; y culminamos con las recomendaciones sobre la generación de evidencia y políticas para para la Academia y el Gobierno.

  18. El escenario de la calidad en la Universidad española: de dónde venimos y hacia dónde vamos

    Directory of Open Access Journals (Sweden)

    Jesús Miguel Muñoz-Cantero

    2014-01-01

    Full Text Available Durante la década de los 90 del pasado siglo, toman relevancia en la educación universitaria española conceptos y visiones hasta entonces desconocidos: sistema de indicadores, evaluación de programas/títulos, aseguramiento de la calidad, homologación, acreditación...La escasa permeabilidad del sistema no posibilitó la impregnación de la cultura de la calidad en todos sus estratos o niveles y en todas las Unidades. La Declaración de Bolonia, en junio de 1999, fue el impulso decisivo para la construcción del Espacio Europeo de Educación Superior (EEES en España. Desde entonces se ha diseñado la moderna arquitectura normativa para mejorar su calidad docente investigadora y de gestión. La Ordenación de las Enseñanzas Universitarias Oficiales recoge la necesidad de establecer criterios que faciliten la evaluación, certificación y acreditación. El establecimiento de un Sistema de Garantía de Calidad (SGC es de obligado cumplimiento para el proceso de Verificación y Acreditación de los Títulos. Iniciada la implantación de las enseñanzas correspondientes, los órganos de evaluación que la ley ha establecido, son los encargados de llevar a cabo el seguimiento partiendo del SGC adoptado y que orienta la futura acreditación de los títulos. Hoy por hoy, el protocolo de renovación de la acreditación de títulos está aún por dilucidar de manera definitiva.

  19. Radiographic testing at Lawrence Livermore National Laboratory

    International Nuclear Information System (INIS)

    Bossi, R.H.

    1982-01-01

    Radiographic testing is a nondestructive inspection technique which uses penetrating radiation. The Nondestructive Evaluation (NDE) Section at Lawrence Livermore National Laboratory has a broad spectrum of equipment and techniques for radiographic testing. These resources include low-energy vacuum systems, low- and mid-energy cabinet and cell radiographic systems, high-energy linear accelerators, portable x-ray machines and radioisotopes for radiographic inspections. For diagnostic testing the NDE Section also has real-time and flash radiographic equipment

  20. EXPERT SYSTEMS

    OpenAIRE

    Georgiana Marin; Mihai Catalin Andrei

    2011-01-01

    In recent decades IT and computer systems have evolved rapidly in economic informatics field. The goal is to create user friendly information systems that respond promptly and accurately to requests. Informatics systems evolved into decision assisted systems, and such systems are converted, based on gained experience, in expert systems for creative problem solving that an organization is facing. Expert systems are aimed at rebuilding human reasoning on the expertise obtained from experts, sto...

  1. Nondestructive characterization of low-level transuranic waste

    International Nuclear Information System (INIS)

    Barna, B.A.; Reinhardt, W.W.

    1981-10-01

    The use of nondestructive evaluation (NDE) methods is proposed for characterization of transuranic (TRU) waste stored at the Radioactive Waste Management Complex. These NDE methods include real-time x-ray radiography, real-time neutron radiography, x-ray and neutron computed tomography, thermal imaging, container weighing, visual examination, and acoustic measurements. An integrated NDE system is proposed for characterization and certification of TRU waste destined for eventual shipment to the Waste Isolation Pilot Plant in New Mexico. Methods for automating both the classification waste and control of a complete nondestructive evaluation/nondestructive assay system are presented. Feasibility testing of the different NDE methods, including real-time x-ray radiography, and development of automated waste classification techniques are covered as part of a five year effort designed to yield a production waste characterization system

  2. Multibody Systems

    DEFF Research Database (Denmark)

    Wagner, Falko Jens

    1999-01-01

    Multibody Systems is one area, in which methods for solving DAEs are of special interst. This chapter is about multibody systems, why they result in DAE systems and what kind of problems that can arise when dealing with multibody systems and formulating their corresponding DAE system....

  3. KURUM PERFORMANSININ DEĞERLENDİRİLMESİNDE İÇ VE DIŞ MÜŞTERİ MEMNUNİYETİNİN ÖLÇÜLMESİ VE YÖNETİLMESİ (USE OF APPRAISAL AND MANAGEMENT OF INTERNAL AND EXTERNAL CUSTOMER SATISFACTION IN CORPORATE PERFORMANCE ASSESSMENT

    Directory of Open Access Journals (Sweden)

    Celal EYNULLAYEV

    2012-10-01

    Full Text Available In a modern age, the rapid changing business environment enabled innovation the first imperative of achieving strategic business goals and requires proper advancement of infrastructure. Acquiring aforementioned skill set is necessary but not enough, the firms, with a proactive approach, further need to detect evolving business climate, check and intervene if the current situation requires to do so. In order to maintain and sustain up to date competitiveness Performance Management Systems are needed. The interactions between structures within the Performance Management Systems need to be well-defined, targets and achievements have to be analyzed constantly. In this study, we have conducted two applications in a private bank in the context of customer satisfaction measurement and management model, investigated satisfaction levels of internal and external customers, examined interactions of the factors affecting fulfillment levels of potential customers with multivariate statistical analysis methods and presented the framework for measuring the overall satisfaction level stakeholders and customers, have found out that related factors have positive impact on corporate performance increasement.

  4. EDITORIAL: Adaptive and active materials: Selected papers from the ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS 10) (Philadelphia, PA, USA, 28 September-1 October 2010) Adaptive and active materials: Selected papers from the ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS 10) (Philadelphia, PA, USA, 28 September-1 October 2010)

    Science.gov (United States)

    Brei, Diann

    2011-09-01

    The third annual meeting of the AMSE/AIAA Smart Materials, Adaptive Structures and Intelligent Systems Conference (SMASIS) took place in the heart of historic Philadelphia's cultural district, and included a pioneer banquet in the National Constitutional Center. The applications emphasis of the 2010 conference was reflected in keynote talks by Dr Alan Taub, vice president of General Motors global research and development, 'Smart materials in the automotive industry'; Dr Charles R Farrar, engineering institute leader at Los Alamos National Laboratory, 'Future directions for structural health monitoring of civil engineering infrastructure'; and Professor Christopher S Lynch of the University of California Los Angeles, 'Ferroelectric materials and their applications'. The SMASIS conference was divided into six technical symposia each of which included basic research, applied technological design and development, and industrial and governmental integrated system and application demonstrations. The six symposia were: SYMP 1 Multifunctional Materials; SYMP 2 Active Materials, Mechanics and Behavior; SYMP 3 Modeling, Simulation and Control; SYMP 4 Enabling Technologies and Integrated System Design; SYMP 5 Structural Health Monitoring/NDE; and SYMP 6 Bio-inspired Smart Materials and Structures. In addition, the conference introduced a new student and young professional development symposium. Authors of papers in the materials areas (symposia 1, 2 and 6) were invited to write a full journal article on their presentation topic for publication in this special issue of Smart Materials and Structures. This set of papers demonstrates the exceptional quality and originality of the conference presentations. We are appreciative of their efforts in producing this collection of highly relevant articles on smart materials.

  5. System dynamics

    International Nuclear Information System (INIS)

    Kim, Do Hun; Mun, Tae Hun; Kim, Dong Hwan

    1999-02-01

    This book introduces systems thinking and conceptual tool and modeling tool of dynamics system such as tragedy of single thinking, accessible way of system dynamics, feedback structure and causal loop diagram analysis, basic of system dynamics modeling, causal loop diagram and system dynamics modeling, information delay modeling, discovery and application for policy, modeling of crisis of agricultural and stock breeding products, dynamic model and lesson in ecosystem, development and decadence of cites and innovation of education forward system thinking.

  6. İlköğretim 6. Sınıf Sosyal Bilgiler Dersi “Yeryüzünde Yaşam” Ünitesinde Yer Alan Tarih Kavramlarının Öğretiminde Karşılaşılan Kavram Yanılgıları Üzerine Bir Eylem Araştırması

    Directory of Open Access Journals (Sweden)

    Kaya Yılmaz

    2012-10-01

    Full Text Available Özet: Kavramlar, düşünmenin ve öğrenmenin gerçekleştiği yer olan bilişin temel yapı taşlarını oluşturdukları için etkili ve anlamlı bir öğrenmenin gerçekleşmesinde önemli bir role sahiptirler. Ülkemizde yapılandırmacı yaklaşıma dayalı olarak 2004 yılında oluşturulan ilköğretim sosyal bilgiler öğretim programında kavram öğretim ve öğrenimine önemli bir yer verilmiştir. Öğretim programında kavramların giriş, gelişme ve pekiştirme seviyelerinin hangi sınıf düzeyinde verileceği özel olarak belirtilmiştir. Sosyal bilgiler dersinde kavram öğretim ve öğreniminde karşılaşılan en önemli sorunlardan birisi kavram yanılgılarıdır. İlköğretim sosyal bilgiler dersi tarih konularının öğretiminde önemli bir engel olarak karşımıza çıkan tarih kavram yanılgıları üzerine yapılmış yeterli çalışma bulunmamaktadır. Literatürdeki bu eksikliği gidermeyi hedefleyen bu çalışmada, sosyal bilgiler eğitimi çerçevesinde tarih konularının öğretiminde karşılaşılan kavram yanılgılarının tespit edilmesi, ortadan kaldırılması ve azaltılması hedeflenmiştir. Çalışmada nitel araştırma desenlerinden eylem araştırması kullanılmıştır. 6. Sınıf sosyal bilgiler dersi “Yeryüzünde Yaşam” Ünitesinde geçen ‘milat’, ‘yüzyıl’, ‘çağ’, ‘kronoloji’, ‘fetih’ ve ‘uygarlık’ kavramlarına ilişkin öğrencilerin yanılgılarını tespit etmek ve gidermek amacıyla kavram haritaları, kavram çarkı diyagramı, çalışma yaprağı, tarih şeridi, görüşme ve öğrenci günlükleri gibi çeşitli uygulamalar yapılmıştır. Verilerin çözümlenmesinde betimsel analiz yöntemi kullanılmıştır. Çalışma sonucunda öğrencilerin araştırılan kavramlara ilişkin birçok yanılgıya sahip oldukları, günümüz bakış açısıyla geçmişe baktıkları ve anakronizim sorunu yaşadıkları belirlenmiştir. Bu yan

  7. ÜRETİM İLİŞKİLERİ TEMELİNDE MODERNİZM VE POST-MODERNİZMİN AZGELİŞMİŞ ÜLKELER ÜZERİNE ETKİLERİ (ON THE BASIS OF THE PRODUCTION RELATIONSHIP EFFECTS OF MODERNISM AND POST-MODERNISM ON UNDERDEVELOPED COUNTRIES

    Directory of Open Access Journals (Sweden)

    Kemal ER

    2014-07-01

    Full Text Available ÖZ: Dünya ekonomik sisteminin kapitalizm tarafından şekillendirildiği bilinen bir gerçektir. Dolayısıyla, ekonomik sistem içinde yer alan fordizm ve post-fordizm de kapitalizmin etkisi altında bulunmaktadır. Burada yapılan araştırmada görüldüğü gibi, fordizm modernizmi etkilemekte, daha sonra gündeme gelen post-fordizm de post-modernizmi etkilemektedir. Öte yandan, modernizm ve post-modernizm, “gelişme yazını” ve “azgelişme yazını” tarafından farklı açılardan ele alınmaktadır. Bu teorilere “azgelişmişlik” açısından bakılmadığında, toplumsal kalkınma sorununa gelişmeyi destekleyici bir çözüm getirilememektedir. O nedenle, bu makalede, ekonomik sistemleri de belirleyen üretim ilişkileri de dikkate alınarak, modernizm ve post-modernizm teorilerinin azgelişme açısından incelenmesi üzerine yoğunlaşılmaktadır. Literatür araştırmalarından elde edilen sonuçla, üretim ilişkileri temelinde modernizm ve post-modernizm gelişmiş devletlerin çıkarlarına işlemektedir. Çalışmada buradan hareketle, azgelişmiş devletlerin zararlarına olabilecek faktörler vurgulanmaya ve bu faktörlerin etkisini ortadan kaldırmaya yönelik politika önerilerinde bulunulmaya çalışılmaktadır. Anahtar Kelimeler: Azgelişme, Kapitalizm, Modernizm, Post-modernizm, Fordizm, Post-fordizm, Bağımlılık Okulu. ABSTRACT: It is a well-known reality that capitalism forms the economic system of the world. Therefore, fordism and post-fordism contained in the economic system are also under the influence of capitalism. As shown in the research, fordism affects the modernism, and in the next step dealt post-fordism influences the post-modernism. On the other hand, the modernism and post-modernism theories have been considered through different perspectives by the “development literature” and the “underdevelopment literature”. It is not possible to find a solution against the social

  8. Farklı Koalisyon Senaryolarına Bağlı Olarak Türkiye’nin Üyeliği Sonrası Avrupa Birliği’nde Oylama Gücü Dağılımı(Depending On Different Coalition Scenarios Voting Power Distribution In The European Union After Turkey’s Membership

    Directory of Open Access Journals (Sweden)

    Hatice Burcu ESKİCİ

    2013-01-01

    Full Text Available It is taken into consideration of the influence on voting power distribution of candidate countries’ European Union membership enlargement is one of the most important issue the for European Union. In this study, the impact of Turkey’s membership on voting power distribution is evaluated for coalition formation determined with hierarchical clustering methods, according to the acts adopted by the Council of the European Union and voting system brought by the Treaty of Lisbon. In the analysis, the effect of Turkey’s membership on voting power distribution is evaluated for four coalition formation determined with hierarchical clustering methods and Banzhaf power index, one of the most frequently used voting power measurement, is used for voting power analysis. Based on the results of the analysis, voting power distribution is affected by Turkey’s European Union membership for four coalition formation. When the Council does not act on a proposal from the Commission or the High Representative of the Union for Foreign Affairs and Security Policy, voting power distribution is not affected by Turkey’s membership for four coalition formation.

  9. ÜRETİM SEKTÖRÜNDE FAALİYET GÖSTEREN KOBİLERDE ISO 9000’NİN ETKİLİ UYGULAMASI İÇİN KRİTİK BAŞARI FAKTÖRLERİ (CRITICAL SUCCESS FACTORS FOR EFFECTIVE IMPLEMENTATION OF ISO 9000 IN SME’S OPERATING IN MANUFACTURING SECTOR

    Directory of Open Access Journals (Sweden)

    Adnan KALKAN

    2012-07-01

    Full Text Available ISO 9000 for quality is one of the most applicable strategies by businesses all over the world. ISO 9000 has been one of important issues in many developing countries including Turkey. Up to now less study is published on the successful use of ISO 9000 Quality Management System, critical success factors and application problems in SME’s. The purpose of this study is to investigate the critical success factors for the effective implementation of ISO 9000 standard in small and medium-sized enterprises (SME’s operating in the manufacturing sector in Turkey.This empirical study has been carried out with a sample of 246 ISO 9000-certified SME’s selected from enterprises operating in manufacturing sector in Turkey. Data were obtained by a questionnaire survey of the managers responsible for quality in each of the sample SME’s. Critical success factors for the effective implementation of ISO 9000 were assessed for importance by simple descriptive statistics.This study provides practical guidance for SME’s operating in manufacturing sector and seeking to implement the ISO 9000 standard effectively.

  10. Coupling component systems towards systems of systems

    OpenAIRE

    Autran , Frédéric; Auzelle , Jean-Philippe; Cattan , Denise; Garnier , Jean-Luc; Luzeaux , Dominique; Mayer , Frédérique; Peyrichon , Marc; Ruault , Jean-René

    2008-01-01

    International audience; Systems of systems (SoS) are a hot topic in our "fully connected global world". Our aim is not to provide another definition of what SoS are, but rather to focus on the adequacy of reusing standard system architecting techniques within this approach in order to improve performance, fault detection and safety issues in large-scale coupled systems that definitely qualify as SoS, whatever the definition is. A key issue will be to secure the availability of the services pr...

  11. SU ÜRÜNLERİ KOOPERATİFLERİNDE KARŞILAŞILAN SORUNLAR VE ÇÖZÜM ÖNERİLERİ: İSTANBUL İLİ ÖRNEĞİ - THE PROBLEMS FACED IN FISHERY COOPERATIVES AND SOLUTION SUGGESTIONS: THE CASE OF ISTANBUL

    Directory of Open Access Journals (Sweden)

    Metin KARADEMİR

    2014-01-01

    Full Text Available ÖzetKooperatifçilik, tarım ve tarım dışı alanlarda başarılı uygulamalara sahip bir girişim biçimidir. Kooperatifler dünyada önemli bir ekonomik büyüklük yaratmakla birlikte istihdam ettiği insanlarla da ülke ekonomilerine katkı sağlamaktadırlar. Bu bağlamda, araştırmada su ürünleri kooperatifleri, Türkiye’de balıkçılığın ve su ürünleri kooperatifçiliğinin önemli merkezlerinden biri olan İstanbul ili örneği çerçevesinde analiz edilmiştir. Kooperatiflerin karşılaştıkları sorunlar belirlenmiş ve bunlara yönelik çözüm önerileri sunulmuştur.AbstractCooperative Trading System is a form of enterprise which has a successful practice in agricultural and non-agricultural areas. Between creating a major economic size, cooperatives contribute to the world economies by employing people. In this context, in the study, fishery cooperatives were analyzed in the example of Istanbul which is one of the most important centers of fisheries and fishery cooperatives in Turkey. Problems of cooperatives encountered were determined and solution suggestions according to them were recommended.

  12. In-Space Inspection Technologies Vision

    Science.gov (United States)

    Studor, George

    2012-01-01

    Purpose: Assess In-Space NDE technologies and needs - current & future spacecraft. Discover & build on needs, R&D & NDE products in other industries and agencies. Stimulate partnerships in & outside NASA to move technologies forward cooperatively. Facilitate group discussion on challenges and opportunities of mutual benefit. Focus Areas: Miniaturized 3D Penetrating Imagers Controllable Snake-arm Inspection systems Miniature Free-flying Micro-satellite Inspectors

  13. Systems effectiveness

    CERN Document Server

    Habayeb, A R

    1987-01-01

    Highlights three principal applications of system effectiveness: hardware system evaluation, organizational development and evaluation, and conflict analysis. The text emphasizes the commonality of the system effectiveness discipline. The first part of the work presents a framework for system effectiveness, partitioning and hierarchy of hardware systems. The second part covers the structure, hierarchy, states, functions and activities of organizations. Contains an extended Appendix on mathematical concepts and also several project suggestions.

  14. Auxiliary systems

    International Nuclear Information System (INIS)

    Meyer, P.J.

    1981-01-01

    Systems included under the heading ''Reactor Auxillary Systems'' are those immediately involved with the reactor operation. These include the systems for dosing and letdown of reactor coolant, as well as for the chemical dosing, purification and treatment of the reactor coolant and the cooling system in the controlled area. The ancillary systems are mainly responsible for liquid and gaseous treatment and the waste treatment for final storage. (orig.)

  15. Interdisciplinary seminar on nondestructive testing and fracture mechanics. Lectures

    International Nuclear Information System (INIS)

    1998-01-01

    The proceedings volume contains 17 lectures presented at a DGZfP seminar held in Berlin/Germany, 2-3 November 1998. Fracture mechanics data are of interest with respect to determining maximum permissible limits for non-destructive materials evaluation, and as quantitative NDE test results indicating existing materials flaws in a system component, delivering information for assessement of remaining service life and safety risks. The topics of lectures are: Quality concepts for welded joints; NDE for service life assessment of engine components, shown for evaluation of engine pales and disks; NDE and crack detection at pressurized gas cylinders; fracture mechanics requirements for NDE in nuclear installations, discussion of practical examples (T. Seidenkranz); failure of off-shore constructions seen in the light of a novel fracture mechanics technical code. (orig./CB) [de

  16. Bitcoin System

    Directory of Open Access Journals (Sweden)

    Jan Lánský

    2017-06-01

    Full Text Available Cryptocurrency systems are purely digital and decentralized systems that use cryptographic principles to confirm transactions. Bitcoin is the first and also the most widespread cryptocurrency. The aim of this article is to introduce Bitcoin system using a language understandable also to readers without computer science education. This article captures the Bitcoin system from three perspectives: internal structure, network and users. Emphasis is placed on brief and clear definitions (system components and their mutual relationships. A new system view of the stated terms constitutes author’s own contribution.

  17. KALİTE YÖNETİM SİSTEMİNE SAHİP ORMAN ÜRÜNLERİ SANAYİ İŞLETMELERİNDE ÇALIŞAN PERFORMANSINI ETKİLEYEN FAKTÖRLERİN DEMOGRAFİK ÖZELLİKLER BAKIMINDAN İNCELENMESİ

    Directory of Open Access Journals (Sweden)

    Aytaç AYDIN

    2016-10-01

    Full Text Available Öz Endüstriyel üretim sistemlerinde birçok açıdan değerlendirilmesi gereken özelliklere sahip olan çalışanın başarısı, onun çalışmasını etkileyecek olan unsurların analizi ve uygun koşullara getirilmesi ile sağlanabilir. Bu amaçla çalışan performansını etkileyen faktörlerin belirlenmesi ve geliştirici tedbirlerin alınması işletmeler için vazgeçilemeyecek unsurlar arasındadır. Bu çalışma kapsamında orman ürünleri sanayinde çalışan performansını etkileyen faktörlerin belirlenmesi ve bu faktörlerin bazı demografik özellikler bakımından farklılaşma durumları araştırılmıştır. Anket verileri SPSS 16.0 ve AMOS 16.0 istatistik paket programlarında yer alan doğrulayıcı faktör analizi ve varyans analizi ile değerlendirilerek sonuçlar ortaya koyulmuştur. Sonuç olarak, orman ürünleri sanayinde çalışan performansını etkileyen faktörlerin stres, motivasyon, çalışma ortamı, iş koşulları ve iş doyumu olduğu belirlenmiştir. Bununla beraber belirlenen performans faktörlerinin cinsiyet, yaş, pozisyon ve toplam çalışma süresine göre farklılık gösterdiği ortaya çıkmıştır. Abstract The success of employees, which has the features needed to evaluate in many respects in industrial production systems, can be achieved by analysis of the elements affecting its study and bringing appropriate conditions. For this purpose, the determination of factors affecting employee performance and taking the improving precautions is among the indispensable elements for businesses. In this study, determination of factors affecting employee performance in the forest products industry and differentiation status in terms of some demographic characteristics of these factors was investigated. The survey data were evaluated by using the confirmatory factor analysis and analysis of variance located in SPSS 16.0 and AMOS 16.0 statistical software package, and the results were revealed. As a

  18. IDEOLOGICAL APPROACHES OF FOLKLORE STUDIES IN KYRGYZSTAN ON THE SOVIET UNION PERIOD: ERSOLTONOY EPIC EXAMPLE SOVYETLER BİRLİĞİ DÖNEMİNDE KIRGIZİSTAN’DA FOLKLOR ÇALIŞMALARINDA İDEOLOJİK YAKLAŞIMLAR: ER SOLTONOY DESTANI ÖRNEĞİ

    Directory of Open Access Journals (Sweden)

    Mehmet ÇERİBAŞ

    2012-01-01

    Full Text Available Folklore, emerged in the 19th century with the romance movement as a tool of nationalizm, acted as shield aganist discriminative movements in the countries which weren’t able to achieve political unity. Political movement, which doesn’t consist freedom of expression and based on single party system like socialism, nazism and communism, wanted to take advantage of all communication channels for propaganda purpose. These movements imposed important folklore products which was considered as a means of communication and interaction. One of these is to understand the judgements values and develop policies on this judgements, other is to ensure harmony between the regime and people-more clearly by formatting fort he purpose of regime.Socialism which is of the movements using folklore for the ideological purpose have benefited from folklore to make people of occupied countries for he emperialist purpose compatible. Epic type, decorated with elements of romantics and nationalism, is used to increase nationalism by the Turks tribes where oral culture is dominant during the war period at ordinary times has taken spokemanship of proletariat class. Such work has been tested on the Kyrgyz Turks which were nomadic horseman and interested in the type of epic proceeding from Er Soltonoy’s of Kyrgyz Turks. 19. yüzyılda ortaya çıkan romantizm hareketiyle uluslaşmanın bir aracı olarak görülen folklor ürünleri, siyasi birliğini sağlayamamış ülkeler tarafından dıştan gelecek ayrıştırıcı akımlara karşı kalkan görevini görmüştür. Nazizm, Sosyalizm ve Komünizm gibi tek parti sistemine dayanan ve ifade özgürlüğünün olmadığı siyasi akımlar ise halka ulaşabilecekleri bütün iletişim kanallarından propaganda amacıyla yararlanmak istemişler; bu akımlar dönemin iletişim araçlarından sayılan folklor ürünlerine de bu bağlamda önemli görevler yüklemişlerdir. Bu görevlerden biri, halkın değer yarg

  19. JOSHUA system

    International Nuclear Information System (INIS)

    Honeck, H.C.

    1975-04-01

    A major computational system called JOSHUA has been under development at the Savannah River Laboratory since 1968. The JOSHUA System has two major parts: the Operating System and the Application System. The Operating System has been in production use since 1970 and provides data management, terminal, and job execution facilities. The Application System uses these facilities in solving problems in reactor physics and engineering. Features of the Application System are the two-dimensional lattice physics and three-dimensional transient reactor physics capabilities, which have been in use since 1971 and 1974, respectively. The capabilities of the JOSHUA System are summarized, and statistics on size, use, and development effort are provided. (U.S.)

  20. Systems thinking.

    Science.gov (United States)

    Cabrera, Derek; Colosi, Laura; Lobdell, Claire

    2008-08-01

    Evaluation is one of many fields where "systems thinking" is popular and is said to hold great promise. However, there is disagreement about what constitutes systems thinking. Its meaning is ambiguous, and systems scholars have made diverse and divergent attempts to describe it. Alternative origins include: von Bertalanffy, Aristotle, Lao Tsu or multiple aperiodic "waves." Some scholars describe it as synonymous with systems sciences (i.e., nonlinear dynamics, complexity, chaos). Others view it as taxonomy-a laundry list of systems approaches. Within so much noise, it is often difficult for evaluators to find the systems thinking signal. Recent work in systems thinking describes it as an emergent property of four simple conceptual patterns (rules). For an evaluator to become a "systems thinker", he or she need not spend years learning many methods or nonlinear sciences. Instead, with some practice, one can learn to apply these four simple rules to existing evaluation knowledge with transformative results.

  1. Cognitive Systems

    DEFF Research Database (Denmark)

    The tutorial will discuss the definition of cognitive systems as the possibilities to extend the current systems engineering paradigm in order to perceive, learn, reason and interact robustly in open-ended changing environments. I will also address cognitive systems in a historical perspective...... to be modeled within a limited set of predefined specifications. There will inevitably be a need for robust decisions and behaviors in novel situations that include handling of conflicts and ambiguities based on the capability and knowledge of the artificial cognitive system. Further, there is a need...... in cognitive systems include e.g. personalized information systems, sensor network systems, social dynamics system and Web2.0, and cognitive components analysis. I will use example from our own research and link to other research activities....

  2. Crystal Systems.

    Science.gov (United States)

    Schomaker, Verner; Lingafelter, E. C.

    1985-01-01

    Discusses characteristics of crystal systems, comparing (in table format) crystal systems with lattice types, number of restrictions, nature of the restrictions, and other lattices that can accidently show the same metrical symmetry. (JN)

  3. Filter systems

    International Nuclear Information System (INIS)

    Vanin, V.R.

    1990-01-01

    The multidetector systems for high resolution gamma spectroscopy are presented. The observable parameters for identifying nuclides produced simultaneously in the reaction are analysed discussing the efficiency of filter systems. (M.C.K.)

  4. Expert systems

    International Nuclear Information System (INIS)

    Haldy, P.A.

    1988-01-01

    The definitions of the terms 'artificial intelligence' and 'expert systems', the methodology, areas of employment and limits of expert systems are discussed. The operation of an expert system is described, especially the presentation and organization of knowledge as well as interference and control. Methods and tools for expert system development are presented and their application in nuclear energy are briefly addressed. 7 figs., 2 tabs., 6 refs

  5. Expert System

    DEFF Research Database (Denmark)

    Hildebrandt, Thomas Troels; Cattani, Gian Luca

    2016-01-01

    An expert system is a computer system for inferring knowledge from a knowledge base, typically by using a set of inference rules. When the concept of expert systems was introduced at Stanford University in the early 1970s, the knowledge base was an unstructured set of facts. Today the knowledge b...... for the application of expert systems, but also raises issues regarding privacy and legal liability....

  6. Retrofitting Systems

    DEFF Research Database (Denmark)

    Rose, Jørgen

    1997-01-01

    This report gives an overview of the different retrofitting possibilities that are available today. The report looks at both external and internal systems for external wall constructions, roof constructions, floor constructions and foundations. All systems are described in detail in respect to use...... and methods, and the efficiency of the different systems are discussed....

  7. Multifunction system

    International Nuclear Information System (INIS)

    Wauthier, J.; Fiori, R.

    1990-01-01

    The development, the characteristics and the applications of a multifunction system are presented. The system is used on the RBES laboratory pipes, at Marcoule. The system was developed in order to allow, without time loss, the modification of the circuit function by replacing only one component. The following elements form the multifunction system: a fixed base, which is part of the tube, a removable piece, which is inserted into the base, a cover plate and its locking system. The material, chosen among commercial trade marks, required small modifications in order to be used in the circuit [fr

  8. Operating systems

    CERN Document Server

    Tsichritzis, Dionysios C; Rheinboldt, Werner

    1974-01-01

    Operating Systems deals with the fundamental concepts and principles that govern the behavior of operating systems. Many issues regarding the structure of operating systems, including the problems of managing processes, processors, and memory, are examined. Various aspects of operating systems are also discussed, from input-output and files to security, protection, reliability, design methods, performance evaluation, and implementation methods.Comprised of 10 chapters, this volume begins with an overview of what constitutes an operating system, followed by a discussion on the definition and pr

  9. Systems integration.

    Science.gov (United States)

    Siemieniuch, C E; Sinclair, M A

    2006-01-01

    The paper presents a view of systems integration, from an ergonomics/human factors perspective, emphasising the process of systems integration as is carried out by humans. The first section discusses some of the fundamental issues in systems integration, such as the significance of systems boundaries, systems lifecycle and systems entropy, issues arising from complexity, the implications of systems immortality, and so on. The next section outlines various generic processes for executing systems integration, to act as guides for practitioners. These address both the design of the system to be integrated and the preparation of the wider system in which the integration will occur. Then the next section outlines some of the human-specific issues that would need to be addressed in such processes; for example, indeterminacy and incompleteness, the prediction of human reliability, workload issues, extended situation awareness, and knowledge lifecycle management. For all of these, suggestions and further readings are proposed. Finally, the conclusions section reiterates in condensed form the major issues arising from the above.

  10. Ternary systems

    International Nuclear Information System (INIS)

    Kagan, D.N.; Hubberstey, P.; Barker, M.G.

    1985-01-01

    The paper reviews the experimental and theoretical studies carried out on multicomponent alkali metal systems. Solid-liquid phase equilibria studies are mainly concerned with the systems Na-K-Rb and Na-K-Cs, and data on the liquidus temperatures in these systems are presented. The thermodynamic properties of the ternary Na-K-Cs eutectic system have been determined experimentally, and the enthalpy, heat capacity and excess functions of the alloy are given. An analysis of calculational methods used in determining thermodynamic functions of ternary liquid metals systems is described. Finally, data are tabulated for the density, compressibility, saturated vapour pressure, viscosity and thermal conductivity of the ternary Na-K-Cs eutectic system. (UK)

  11. NOAA JPSS Visible Infrared Imaging Radiometer Suite (VIIRS) Snow Cover Environmental Data Record (EDR) from NDE

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset contains a high quality operational Environmental Data Record (EDR) of snow cover from the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument...

  12. Status of NDE research and applications for life management of nuclear power plants in india

    Energy Technology Data Exchange (ETDEWEB)

    Raj, B.; Shyamsunder, M.T.; Jayakumar, T. [Indira Gandhi Centre for Atomic Research, Kalpakkam (India). Metallurgy and Materials Group

    1999-08-01

    The development and application of various nondestructive evaluation techniques and methodologies for the life management of nuclear power plants in India are described. The indigenous development carried out to meet the stringent quality requirements in evaluation of fabricated components and innovative methodologies using multidisciplinary approaches and advances for assessment of inservice performance of plants are highlighted. (orig.)

  13. ¿Hacia dónde va la ciencia argentina?

    Directory of Open Access Journals (Sweden)

    Lino Barañao

    2012-08-01

    Full Text Available El ministro se refirió a los lineamientos de la ciencia argentina. Destacó que la inversión que la sociedad hace en Ciencia y Tecnología en la Argentina debe apuntar a una mejora de la calidad de vida de la población, mediante el fortalecimiento del sistema, mejora de los salarios e infraestructura, la diversificación de financiamientos, la vinculación efectiva entre generación de conocimiento, solución de problemas y aumento de la actividad productiva, con atención a las demandas sociales. Para cumplir estos objetivos pueden contribuir la cooperación investigación-empresa, la del Estado con el sector privado, las mejoras en infraestructura e institucionales, como así también la promoción del diálogo entre disciplinas. La divulgación del conocimiento es la forma más directa en que vuelve la inversión en ciencia a la sociedad. Y la excelencia de la investigación científica siempre tendrá un papel preponderante como motor de las acciones. El ministro se refirió también a los subsidios para proyectos científicos, la relación entre el sistema científico y la producción, y cómo acoplar la ciencia innovadora a la actividad productiva, destacando la promoción de empresas de base tecnológica. En la actualidad existen tres plataformas tecnológicas: nanotecnología, biotecnología y tecnología en información y comunicación. El ministerio identifica prioritariamente 4 sectores de problema/oportunidad que son: la salud, la energía renovable, la agro-industria y el desarrollo social. De la interacción entre éstos y las plataformas surgirá, por ejemplo, el área de biotecnología aplicada a la salud. Destacó que el sistema debe crecer en medicina traslacional. Finalmente abordó el tema de patentes, señalando que con tal fin se promueven los fondos sectoriales para aplicación de la ciencia: consorcios público-privados, con un plan de negocios.

  14. İNGİLİZ KONSOLOSLUK BELGELERİNDE SİNOP (1841-1842)

    OpenAIRE

    Çağlayan, Kaya tuncer

    2015-01-01

    19th century industrialization affected the commercial course of the world revolution through the implementation of the power steam technology as well as affecting social and political mobility across the large regions of the Ottoman geography. As a result of the concession brought about by the 1838 OttomanBritish Trade Agreement, British consulates were opened in the major Ottoman cities. All the relevant information concerning trade, social and political life, thought to be significant for ...

  15. ¿Hacia dónde va la integración?

    Directory of Open Access Journals (Sweden)

    Alberto Acosta

    2015-01-01

    Full Text Available La ola integracionista se filtra por todas partes, en especial, en la formación de bloques económicos. Los periodistas juegan un papel importante como agentes dinamizadores. Aborda el Plan Bush vs. Integración, la crisis de la hegemonía a la integración, limitaciones del desarrollo dependiente. Responde a la pregunta de ¿Hacia donde va la integración en América latina? Advierte que la integración deberá construirse sobre una movilización ideológica en tormo a la definición de objetivos y metas que hagan posible las transformaciones en todas las sociedades involucradas.

  16. GIDA ENDÜSTRİSİNDE YÜKSEK HİDROSTATİK BASINÇ UYGULAMALARI

    Directory of Open Access Journals (Sweden)

    Yahya TÜLEK

    2006-03-01

    Full Text Available Isıl işlem teknikleri, gıda maddelerinin mikrobiyolojik ve biyokimyasal değişimlerden korunması ve raf ömrünün uzatılması amacıyla günümüzde yaygın olarak kullanılmaktadır. Isıl işlem teknikleri, mikroorganizmaların hem vejetatif hem de spor formlarının tamamını yok edebildiği için, uygulandıkları gıdanın mikrobiyolojik olarak güvenilir bir gıda olmasını sağlamaktadır. Bununla birlikte, ısıl işlem uygulamalarının, kullanılan sıcaklık seviyesine bağlı olarak, gıda maddesinin beslenme değerinde ve duyusal kalite özelliklerinde azalmaya ve toksik bileşenlerin oluşmasına neden olduğu bilinmektedir. Beslenme değerinde ve duyusal özelliklerinde en az kayıpla üretilen, daha taze gıda ürünlerine artan müşteri talebinin karşılanması ve kabul edilebilir bir raf ömrü elde edilebilmesi için yapılan çalışmalar, son on yıllık dönemde, özellikle ısıl işlem içermeyen (non-thermal inaktivasyon teknikleri üzerine yoğunlaşmıştır. Bu makalede, ısıl işlem içermeyen tekniklerden birisi olan yüksek hidrostatik basınç tekniğinin gıdalar için uygulamaları ve etkileri ayrıntılı olarak irdelenmiştir.

  17. Alergia alimentaria en la infancia, ¿hacia dónde vamos?

    OpenAIRE

    S. Lapeña López de Armentia; D. Naranjo Vivas; G. López Blanco; M. D. Revilla Orias

    2014-01-01

    La alergia alimentaria es un problema de salud pública, que afecta a más de 17 millones de personas en Europa y de ellos, 3,5 millones son menores de 25 años; además en los últimos años está aumentando en frecuencia y gravedad, sobre todo en niños. En toda Europa, la alergia alimentaria es la principal causa de anafilaxia en los niños entre 0 y 14 años...

  18. NOAA JPSS Visible Infrared Imaging Radiometer Suite (VIIRS) Aerosol Detection Environmental Data Record (EDR) from NDE

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset contains a high quality operational Environmental Data Record (EDR) of suspended matter from the Visible Infrared Imaging Radiometer Suite (VIIRS)...

  19. 3. Reforma de salud en Bolivia: ¿Dónde se sitúa el proceso?

    OpenAIRE

    Illanes, Daniel; Sejas, Edgar; Ardúz, Edgar

    2015-01-01

    1. Introducción: las reformas de salud en el mundo En las décadas de los años 60, 70 y 80, en la mayoría de los países latinoamericanos una de las características de la organización de los sistemas de salud ha sido sin duda su centralización por parte de las instancias responsables (Ministerios de Salud). Esta concentración privilegiaba a las capitales y los centros poblados, en desmedro de las poblaciones más alejadas, contradiciendo la afirmación de que uno de los beneficios de la centraliz...

  20. OTEL SEÇİMİNDE DİNİ HAYAT TARZLARININ ETKİSİ

    OpenAIRE

    YEŞİLTAŞ, Mehmet; CANKÜL, Duran; TEMİZKAN, Rahman

    2012-01-01

    The purpose of this research is to determine whether the religious life styles of domestic tourists have an effect on their buying process or not, to put their reasons of their choice of hotel in order by comparing the religious factors that determine their choice of hotel and to reveal the differences among their purchasing behavior. The method which is used in research is case study. 600 domestic customers in the "X" Islamic hotel and customers in the "Y" classic hotel w...