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Sample records for pole figure analysis

  1. Determination of the crystallite orientation distribution from direct pole figures

    International Nuclear Information System (INIS)

    Araujo Gomes, P.A.M. de.

    1977-01-01

    A method is described which allows to calculate the crystallite orientation distribution in polycrystalline material, from direct pole figures data of its crystallographic planes (Roe's Method). The programme was applied to (1010), (0002), (1011) and (1120) complete pole figures data for a commercial, thin sheet Zircaloy-4 tubing specimen. A semi-automatic Rigaku-Denki texture goniometer, which scans the reciprocal lattice sphere pointwise outputting the data in a punched tape, was used to obtain the pole figures. This is consistent with the results obtained through direct conclusion from the pole figures. (author)

  2. Plotter of pole figure using data from x-ray diffraction

    International Nuclear Information System (INIS)

    Lima, A.F.

    1990-01-01

    Any polycrystalline aggregate normally has a preferred crystallographic orientation, or texture which depends on its thermal and or mechanical history. Preferred orientation is best described by means of a pole figure. A pole figure is a stereographic projection which shows the variation in pole density with pole orientation, for a selected set of crystal planes. In this work, computer programs was developed to plot pole figures. The corrected intensities are calculated and directly transmitted to the plotter. The different intensities levels are represented by different colors in the pole figure. (author)

  3. Crystalline texture study of Zr-2.5%Nb pressure pipes by DRX pole figures

    International Nuclear Information System (INIS)

    Buioli, C P; Banchik, A D; Vizcaino, P; Samper, R; Testone, S

    2012-01-01

    This work presents the study of crystalline texture of Zr-2.5%Nb pressure tubes (A, B and C); structural components of CANDU nuclear power reactors [1]. The study of texture was made using the RX diffraction technique, making measurements of direct pole figures [2], in a Phillips diffractometer with pole goniometer (IFIR-CONICET). The texture was determined calculating the coefficients of JJ Kearns [3]. The samples used correspond to transversal sections of the tubes, front and back, and were characterized making de measurements of five pole figures with Miller index (001), (100), (101), (102) and (110), in order to represent in a complete way the texture in the material. The calculated Kearns coefficients were compared with the specifications given by the designer of pressure tubes AECL [4] (author)

  4. Neutron pole figures compared with magnetic preferred orientations of different rock types

    International Nuclear Information System (INIS)

    Hansen, Anke; Chadima, Martin; Cifelli, Francesca; Brokmeier, H.-G.Heinz-Guenter; Siemes, Heinrich

    2004-01-01

    Neutron diffraction is an excellent tool for pole figure measurement of rock samples. Due to high penetration depth of neutrons for most materials neutron diffraction represents an efficient tool to measure complete pole figures with reliable grain statistics even in coarse grained or inequi-granular materials. In the field of structural geology, the measurement of anisotropy of magnetic susceptibility is a standard technique to reveal the tectonic history of deformed rocks. The application of both techniques on still ongoing studies of Precambrian, Carboniferous and Quaternary rocks which are characterised by fundamental different tectonic evolutions and mineralogical compositions shows the wide field of relevance and importance of these methods in understanding tectonic processes in detail

  5. Experimental measurement of lattice strain pole figures using synchrotron x rays

    International Nuclear Information System (INIS)

    Miller, M.P.; Bernier, J.V.; Park, J.-S.; Kazimirov, A.

    2005-01-01

    This article describes a system for mechanically loading test specimens in situ for the determination of lattice strain pole figures and their evolution in multiphase alloys via powder diffraction. The data from these experiments provide insight into the three-dimensional mechanical response of a polycrystalline aggregate and represent an extremely powerful material model validation tool. Relatively thin (0.5 mm) iron/copper specimens were axially strained using a mechanical loading frame beyond the macroscopic yield strength of the material. The loading was halted at multiple points during the deformation to conduct a diffraction experiment using a 0.5x0.5 mm 2 monochromatic (50 keV) x ray beam. Entire Debye rings of data were collected for multiple lattice planes ({hkl}'s) in both copper and iron using an online image plate detector. Strain pole figures were constructed by rotating the loading frame about the specimen transverse direction. Ideal powder patterns were superimposed on each image for the purpose of geometric correction. The chosen reference material was cerium (IV) oxide powder, which was spread in a thin layer on the downstream face of the specimen using petroleum jelly to prevent any mechanical coupling. Implementation of the system at the A2 experimental station at the Cornell High Energy Synchrotron Source (CHESS) is described. The diffraction moduli measured at CHESS were shown to compare favorably to in situ data from neutron-diffraction experiments conducted on the same alloys

  6. Contributions to the defocusing effect on pole figure measurements by X-ray diffraction

    Energy Technology Data Exchange (ETDEWEB)

    Palacios G, J.; Salat F, R. S.; Jimenez J, A.; Kryshtab, T., E-mail: palacios@esfm.ipn.mx [Instituto Politecnico Nacional, Escuela Superior de Fisica y Matematicas, Av. IPN s/n, 07738 Mexico D. F. (Mexico)

    2015-07-01

    A simple method, considering a parallel beam approximation has been made to reproduce the main features of the defocusing effect, observed when pole figures are measured with the Schulz reflection technique using X-ray diffraction. A Lorentzian curve was used to approximate the primary beam profile. This method applied to low index reflections of copper and silver shows qualitatively and partially quantitatively, the extent the elongation of the ellipse resulting from the intersection of the beam with the tilted sample causes the defocusing effect. Differences observed experimentally are attributed mainly to the divergence of the beam, but also partially to the particular primary beam profile. Additionally, measurements with two different vertical heights of the receiving slit, i. e. the measured arch length of the Debye-Scherrer ring, indicate that this parameter plays no role in defocusing. (Author)

  7. Figures

    Data.gov (United States)

    U.S. Environmental Protection Agency — data for figures 1-8 in journal article "Assessment of port-related air quality impacts: geographic analysis of population", International Journal of Environment and...

  8. Correcting intensity loss errors in the absence of texture-free reference samples during pole figure measurement

    International Nuclear Information System (INIS)

    Saleh, Ahmed A.; Vu, Viet Q.; Gazder, Azdiar A.

    2016-01-01

    Even with the use of X-ray polycapillary lenses, sample tilting during pole figure measurement results in a decrease in the recorded X-ray intensity. The magnitude of this error is affected by the sample size and/or the finite detector size. These errors can be typically corrected by measuring the intensity loss as a function of the tilt angle using a texture-free reference sample (ideally made of the same alloy as the investigated material). Since texture-free reference samples are not readily available for all alloys, the present study employs an empirical procedure to estimate the correction curve for a particular experimental configuration. It involves the use of real texture-free reference samples that pre-exist in any X-ray diffraction laboratory to first establish the empirical correlations between X-ray intensity, sample tilt and their Bragg angles and thereafter generate correction curves for any Bragg angle. It will be shown that the empirically corrected textures are in very good agreement with the experimentally corrected ones. - Highlights: •Sample tilting during X-ray pole figure measurement leads to intensity loss errors. •Texture-free reference samples are typically used to correct the pole figures. •An empirical correction procedure is proposed in the absence of reference samples. •The procedure relies on reference samples that pre-exist in any texture laboratory. •Experimentally and empirically corrected textures are in very good agreement.

  9. The use of a position sensitive detector or of a multidetector for the measurement of pole figures by neutron time-of-flight technique

    International Nuclear Information System (INIS)

    Walther, K.

    1990-01-01

    The neutron flux of even high flux reactors is weak in comparison with the quantum flux of X-ray tubes and therefore in order to decrease the expense on measuring time more and more neutron diffractometers are equipped with position sensitive detectors or multidetectors. In this paper the peculiarities of the use of such detecting devices are discussed for the measurement of pole figures. A special arrangement of a multidetector is proposed which will allow one to scan the whole pole figure by rotating the sample about only one axis and considerably will save measuring time. 4 refs.; 5 figs

  10. Compatibility study of the different pole figures in one and the same specimen. Comparison between the results obtained by neutron and by X-ray diffraction

    International Nuclear Information System (INIS)

    Pernot, M.; Penelle, R.; Dervin, P.

    1981-01-01

    Development of a calculation to show directly the compatibility of the different pole figures in the same specimen is exposed. A review of the method by serial development is given. Experimental methods are described. The position of the anisotropy axes is determined. Compatibilities resulting from X-ray and from neutron diffraction is analysed [fr

  11. Formation and texture of palladium germanides studied by in situ X-ray diffraction and pole figure measurements

    Energy Technology Data Exchange (ETDEWEB)

    Geenen, F.A., E-mail: Filip.Geenen@UGent.be [Ghent University, Department of Solid-State Sciences, Krijgslaan 281 (S1), 9000 Gent (Belgium); Knaepen, W.; De Keyser, K. [Ghent University, Department of Solid-State Sciences, Krijgslaan 281 (S1), 9000 Gent (Belgium); Opsomer, K. [Interuniversitair Micro-Electronica Centrum (IMEC), Kapeldreef 75, 3001 Leuven (Belgium); Vanmeirhaeghe, R.L. [Ghent University, Department of Solid-State Sciences, Krijgslaan 281 (S1), 9000 Gent (Belgium); Jordan-Sweet, J.; Lavoie, C. [IBM T.J. Watson Research Center, Yorktown (United States); Detavernier, C. [Ghent University, Department of Solid-State Sciences, Krijgslaan 281 (S1), 9000 Gent (Belgium)

    2014-01-31

    The solid state reaction between 30 nm Pd films and various Ge substrates (Ge(100), Ge(111), polycrystalline Ge and amorphous Ge) was studied by means of in situ X-ray diffraction and in situ sheet resistance measurements. The reported phase sequence of Pd{sub 2}Ge followed by PdGe was verified on all substrates. The texture of the germanides was analysed by pole figure measurements on samples quenched in the Pd{sub 2}Ge and in the PdGe phase on both Ge(100) and (111) substrates. We report an epitaxial growth of Pd{sub 2}Ge on Ge(111) and on Ge(100). The formed PdGe has an axiotaxial alignment on Ge(111). On Ge(100), the axiotaxial texture is observed together with a fibre texture. The higher formation temperature of PdGe on Ge(111) could be related to the epitaxial alignment of the Pd{sub 2}Ge parent phase on Ge(111). - Highlights: • Solid-state reaction is studied on a Pd film with Ge substrates. • Pd2Ge grains have an epitaxial texture on both Ge 100 and Ge 111. • PdGe grains are found to grow with an axiotaxial texture. • Retarded PdGe formation on Ge111 is related with strong epitaxy of Pd2Ge.

  12. The Possibility of Semantic Features and Analysis of Figures of Speech——Cognitive Figures and Expressive Figures

    Directory of Open Access Journals (Sweden)

    Liu Dawei

    2007-10-01

    Full Text Available In this paper, linguistic methodology is suggested for approaching figures of speech formed due to shift of cognitive relations. First, requisite features, possible features and impossible features are proposed on the basis of semantic analysis and their interrelationships and expressions are discussed. Then it is further argued that all figures formed due to shift of cognitive relation are expressed to accept an impossible feature; and there are four semantic forms to accept it: “zero distance/distanced”, “implicit/explicit”, “direct/indirect”, “positive/negative”. Finally, starting from the two approaches to figures we comment on the traditional idea of separating decoration and substance and the new idea of “function as form”.

  13. A Comparative Analysis of the New Five-Pole and Three-Pole Active Magnet Bearing

    Directory of Open Access Journals (Sweden)

    Pedram Vakili

    2012-07-01

    Full Text Available In recent years, more attention has been given to the active AMBs thanks to their low maintenance cost, suitability for clean environments, and high speed. One of the popular types of AMBs is the three-pole type with integrated and separate cores. Some deficiencies of this type of bearing are its high oscillation, low stability and low efficiency. This paper seeks to analyse the three-pole AMBs and describe their deficiencies and introduce and analyse a new five-pole AMB. The model thus proposed has lower oscillation as well as more stability and efficiency. The five-pole AMB has been simulated by a controller in the presence of disturbance. The results of simulation demonstrate lower vibration and oscillation in the five-pole AMB in comparison with the three-pole model.

  14. Management of lower pole nephrolithiasis: a critical analysis.

    Science.gov (United States)

    Lingeman, J E; Siegel, Y I; Steele, B; Nyhuis, A W; Woods, J R

    1994-03-01

    The results of extracorporeal shock wave lithotripsy (ESWL*) and percutaneous nephrostolithotomy for the treatment of lower pole nephrolithiasis were examined in 32 consecutive patients undergoing percutaneous nephrostolithotomy at the Methodist Hospital of Indiana and through meta-analysis of publications providing adequate stratification of treatment results. Of 101 cases managed with percutaneous nephrostolithotomy 91 (90%) were stone-free, a result significantly better than that achieved with ESWL (1,733 of 2,927 stone-free, 59%). Stone-free rates with percutaneous nephrostolithotomy were independent of stone burden, whereas stone-free rates with ESWL were inversely correlated to the stone burden treated. The morbidity of patients undergoing percutaneous nephrostolithotomy at our hospital was minimal, with a mean hospital stay of 4.7 +/- 2.8 days. No blood transfusions were required. All patients became stone-free. The percentage of urolithiasis patients with lower pole calculi is increasing. Because of the significantly greater efficacy of percutaneous nephrostolithotomy for lower pole calculi, particularly stones larger than 10 mm. in diameter, further consideration should be given to an initial approach with percutaneous nephrostolithotomy.

  15. Spectral analysis of gluonic pole matrix elements for fragmentation

    NARCIS (Netherlands)

    Gamberg, L. P.; Mukherjee, A.B.; Mulders, P.J.G.

    2008-01-01

    The nonvanishing of gluonic pole matrix elements can explain the appearance of single spin asymmetries in high-energy scattering processes. We use a spectator framework approach to investigate the spectral properties of quark-quark-gluon correlators and use this to study gluonic pole matrix

  16. Figures and First Years: An Analysis of Calculus Students' Use of Figures in Technical Reports

    Directory of Open Access Journals (Sweden)

    Nathan J. Antonacci

    2017-07-01

    Full Text Available This three-year study focused on first-year Calculus I students and their abilities to incorporate figures in technical reports. In each year, these calculus students wrote a technical report as part of the Polar Bear Module, an educational unit developed for use in partner courses in biology, computer science, mathematics, and physics as part of the Multidisciplinary Sustainability Education (MSE project at Ithaca College. In the first year of the project, students received basic technical report guidelines. In year two, the report guidelines changed to include explicit language on how to incorporate figures. In year three, a grading rubric was added to the materials provided to one of the two classes. In all three years, the students performed below expectations in their use of graphs in their reports. Reviews of the figures in the 78 technical reports written by the 106 students showed repeated deficiencies in the figures and how the students used them in the discussion sections and in evidence-based arguments. In year three the student’s quantitative literacy (QL skills were assessed using an extract from a QL assessment instrument published in Numeracy. The results indicated that the students could both read and interpret figures, suggesting that issues with QL were not the main contributor to student difficulty with written discussion about graphs. The study underscores the need that explicit instructional attention be given to developing student knowhow in the use of figures in technical reports.

  17. FEM Analysis of Brushless DC Servomotor with Fractional Number of Slots per Pole

    Directory of Open Access Journals (Sweden)

    BALUTA, G.

    2014-02-01

    Full Text Available The authors present in this paper the analysis with Finite Element Method (FEM of the magnetic circuit for a Brushless DC servomotor with fractional number of slots/pole (9 slots and 10 poles. For this purpose, FEMM 4.2 software package was used for the analysis. To obtain the waveforms of Back-ElectroMotive Forces (BEMFs, electromagnetic and cogging torque for servomotor a program in LUA scripting language (integrated into interactive shell of FEMM4.2 has been created. A comparation with a structure with integer number of slots/pole (18 slots and 6 poles was also realized. The analysis results prove that the structure chosen is an optimal solution: sinusoidal waveforms of BEMFs, improved electromagnetic torque and reduced cogging torque. Therefore, the operating characteristics of the servomotor with 9/10 slots/poles manufactured by Sistem Euroteh Company and included in an integrated electrical drives system are presented in this paper.

  18. Analysis of car’s frontal collision against pole

    Science.gov (United States)

    Ispas, N.; Nastasoiu, M.

    2017-10-01

    Reducing the effects of traffic accidents over the occupants is a major objective of collision attempts. Impacts between the car and the pole are very dangerous for the physical integrity of the car’s occupants. To minimalize the effects of such events on the passengers of a vehicle, a whole series of efforts by both designers and experienced engineers led to increasingly the vehicles safety. The main aim of these paper is to quantify the influences over the car passengers of loads involved by car against pole collisions using the same car model at different speeds. Also, this kind on occupant influences were study using a small car model. Other goal of the paper was the study of the cars stiffness in frontal collision against the pole. The paper’s experimental results were obtained by support of DSD, Dr. Steffan Datentechnik GmbH - Linz, Austria. The described tests were performed in full test facility of DSD Linz, in “Easter 2016 PC-Crash Seminar”. Cars accelerations, velocities, rotations angles after pole impact were registered and discussed. The novelty of the paper consists in studies referred for the same car model involved in car against pole collisions at different impact speeds. Paper’s conclusions can be future used for car safety improvement.

  19. Analysis of the growth poles in esthetic dentistry

    Directory of Open Access Journals (Sweden)

    Andreea Dana Tudose

    2015-05-01

    Full Text Available Growth poles are considered dynamic elements of economic growth, responsible for economical technogical, ideological, spiritual and moral integration.Bioeconomy is currently an area of great and mighty power development. High complexity of this field is to combine the use of technologies that use biological resources in the range of human values involved. This study requires that objective SWOT analysis applied in dental esthetics with strict reference to the quality of work in relation to aesthetic and functional effectiveness of the treatment, the life, the method of reconstruction, working technique, the degree of invasiveness of treatment in relation to conservation dental tissues ,execution costs, costs of resources used in dental anterior segment reconstruction and economic analysis of the modalities of treatment techniques reported the need and level of understanding of patients on treatment aesthetic-functional complexity. As material and method took into account the interaction of four factors: Strenghts-Weaknesses-Opportunities -Hazards. In group “Strengths” we have included successful treatment aesthetic-functional execution moderate cost, short time working on the seat, which shows limited use of natural resources. In group “Weaknesses” I included invasiveness of biological treatment, increased during execution of the work, aesthetic-functional failure , lack of training practitioners in dental aesthetics, lack of existant cabinets to promote interest in aesthetic dental medicine. “Opportunities” referred to the minimally invasive treatment of dental tissue in existing clinical context with predictable results, as higher interest of patients for dental esthetics, raising the standard of care internationally. In group “Risks” (threats I listed: low resistance while works (weak predictability, decreasing purchasing power, changing customer preferences, increase service quality standards. In the second chapter we

  20. Finite element analysis of boron diffusion in wooden Poles

    DEFF Research Database (Denmark)

    Krabbenhøft, Kristian; Hoffmeyer, Preben; Bechgaard, Carl

    2004-01-01

    The problem of describing the migration of dissolved boron in wood is treated with special reference to the commonly used remedial treatment of wooden poles. The governing equations are derived and discussed together with some of the material parameters required. The equations are solved...

  1. Finite Element Analysis of Boron Diffusion in Wooden Poles

    DEFF Research Database (Denmark)

    Krabbenhøft, Kristian; Hoffmeyer, P.; Bechgaard, C.

    2003-01-01

    The problem of describing the migration of dissolved boron in wood is treated with special reference to the commonly used remedial treatment of wooden poles. The governing equations are derived and discussed together with some of the material parameters required. The equations are solved by the f...... by the finite element method and, finally, results showing the effect of different treatment strategies are presented....

  2. Finite element analysis of boron diffusion in wooden Poles

    DEFF Research Database (Denmark)

    Krabbenhøft, Kristian; Hoffmeyer, Preben; Bechgaard, Carl

    2004-01-01

    The problem of describing the migration of dissolved boron in wood is treated with special reference to the commonly used remedial treatment of wooden poles. The governing equations are derived and discussed together with some of the material parameters required. The equations are solved by the f...... by the finite element method and, finally, results showing the effect of different treatment strategies are presented....

  3. Finite Element Analysis of Boron Diffusion in Wooden Poles

    DEFF Research Database (Denmark)

    Krabbenhøft, Kristian; Hoffmeyer, Preben; Bechgaard, Carl

    2004-01-01

    The problem of describing the migration of dissolved boron in wood is treated with special reference to the commonly used remedial treatment of wooden poles. The governing equations are derived and discussed together with some of the material parameters required. The equations are solved by the f...... by the finite element method and, finally, results showing the effect of different treatment strategies are presented....

  4. Least 1-Norm Pole-Zero Modeling with Sparse Deconvolution for Speech Analysis

    DEFF Research Database (Denmark)

    Shi, Liming; Jensen, Jesper Rindom; Christensen, Mads Græsbøll

    2017-01-01

    In this paper, we present a speech analysis method based on sparse pole-zero modeling of speech. Instead of using the all-pole model to approximate the speech production filter, a pole-zero model is used for the combined effect of the vocal tract; radiation at the lips and the glottal pulse shape......-zero, linear prediction and sparse linear prediction methods, experimental results show that the proposed speech analysis method has lower spectral distortion, higher reconstruction SNR and sparser residuals....

  5. Performance analysis of variable speed multiphase induction motor with pole phase modulation

    Directory of Open Access Journals (Sweden)

    Liu Huijuan

    2016-09-01

    Full Text Available The pole phase modulation (PPM technique is an effective method to extend speed range and torque capabilities for an integrated starter and hybrid electric vehicles applications. In this paper, the five pole-phase combination types of a multiphase induction motor (IM with 36 stator slots and 36 stator conductors are presented and compared quantitatively by using the time-stepping finite element method (TS-FEM. The 36 stator conductors of the proposed multiphase IM are fed by a 36 leg inverter and the current phase angle and amplitude of each stator conductor can be controlled independently. This paper focuses on the winding connection, the PPM technique and the performance comparative analysis of each pole-phase combination types of the proposed multiphase IM. The flux distribution, air-gap flux density, output torque, core losses and efficiency of five pole-phase combination types have been investigated.

  6. Ring modulator small-signal response analysis based on pole-zero representation.

    Science.gov (United States)

    Karimelahi, Samira; Sheikholeslami, Ali

    2016-04-04

    We present a closed-form expression for the small-signal response of a depletion-mode ring modulator and verify it by measurement results. Both electrical and optical behavior of micro-ring modulator as well as the loss variation due to the index modulation is considered in the derivation. This expression suggests that a ring modulator is a third-order system with one real pole, one zero and a pair of complex-conjugate poles. The exact positions of the poles/zero are given and shown to be dependent upon parameters such as electrical bandwidth, coupling condition, optical loss, and sign/value of laser detunings. We show that the location of zero is different for positive and negative detuning, and therefore, the ring modulator frequency response is asymmetric. We use the gain-bandwidth product as a figure of merit and calculate it for various pole/zero locations. We show that gain-bandwidth for the over-coupled ring modulator is superior compared to other coupling conditions. Also, we show that the gain-bandwidth product can be increased to a limit by increasing the electrical bandwidth.

  7. Analysis of magnetic abrasive finishing with slotted magnetic pole

    Science.gov (United States)

    Jayswal, S. C.; Jain, V. K.; Dixit, P. M.

    2004-06-01

    Magnetic Abrasive Finishing (MAF) is relatively a new finishing process among the advanced finishing processes in which the workpiece is kept in the magnetic field created by two poles of an electromagnet. The working gap between the workpiece and the magnet is filled with magnetic abrasive particles. A flexible magnetic abrasive brush is formed, acting as a multipoint cutting tool, due to the effect of magnetic field in the working gap. This process is capable of producing the surface finish of nanometer range. Most of the researchers have been using the electromagnet having a slot in it to improve the performance of the process but hardly any information is available about its effect on the process performance. This paper deals with the effect of a slot made in the electromagnet on the forces and surface quality during MAF. An experimental set-up is designed and fabricated for the measurement of the magnetic field distribution in the working gap. The magnetic field is simulated using a finite element model of the process. The magnetic field is also measured experimentally to validate the theoretical results. It indicates a good agreement between the experimental results and simulated values. The finite element method is further used for the evaluation of the magnetic force and surface quality during MAF. To our surprise it is found that the force under the slot is negative, even then process performance is improved. MAF process removes a very small amount of material by indentation and rotation of the magnetic abrasive particles in the circular tracks. Due to rotation of the magnetic abrasive flexible brush, grooves are formed on the workpiece surface which decides the surface profile after MAF. Surface quality is determined on the basis of the surface profile achieved by equating the volume of groove produced. These results show an improvement in finishing rate while using a slotted pole surface.

  8. Analysis of moire figures using interferometric lattices with Airy perfils

    International Nuclear Information System (INIS)

    Rabal, H.J.; Garavaglia, M.

    1979-01-01

    Using a Fabry-Perot interferometer and a spectrograph, iluminated with white light, ondulatory spectra are obtained. The componentes are not equidistance among them and the intensity distribution obeys the Airy's law. It is been made preliminar experiments to determinate if the moire figures, generated by the ondulatory spectra interaction, allows to measure displacements, rotations, etc [es

  9. Descriptive Analysis Of Nigerian Children Human Figure Drawings ...

    African Journals Online (AJOL)

    Art is a symbolic means of communication through which man can communicate his inner needs, desires and worries. Children find art a good means of communicating what ordinarily, they may not be able to describe orally. This study was on description of Nigerian children human figure art using Lowenfeld and Brittain ...

  10. Biomechanical analysis of double poling in elite cross-country skiers.

    Science.gov (United States)

    Holmberg, Hans-Christer; Lindinger, Stefan; Stöggl, Thomas; Eitzlmair, Erich; Müller, Erich

    2005-05-01

    To further the understanding of double poling (DP) through biomechanical analysis of upper and lower body movements during DP in cross-country (XC) skiing at racing speed. Eleven elite XC skiers performed DP at 85% of their maximal DP velocity (V85%) during roller skiing at 1 degrees inclination on a treadmill. Pole and plantar ground reaction forces, joint angles (elbow, hip, knee, and ankle), cycle characteristics, and electromyography (EMG) of upper and lower body muscles were analyzed. 1) Pole force pattern with initial impact force peak and the following active force peak (PPF) correlated to V85%, (r = 0.66, P biomechanical aspects. Future research should further investigate the relationship between biomechanical and physiological variables and elaborate training models to improve DP performance.

  11. Structural analysis of pole assignment and stabilization in dynamic systems

    OpenAIRE

    Şefik, Ayla

    1989-01-01

    Ankara : The Department of Electrical and Electronics Engineering and the Institute of Engineering and Sciences of Bilkent Univ. , 1989. Thesis (Ph.D.) -- Bilkent University, 1989. Includes bibliographical references leaves 127-132. Motivated by the need for qualitative investigation of general system properties such as controllability, obser\\^bility, existence of fixed modes, etc. as the complement of the quantitative approach in analysis, especially of large-scale systems,...

  12. Analysis of the state of poling of lead zirconate titanate (PZT) particles in a Zn-ionomer composite

    NARCIS (Netherlands)

    James, N.K.; Comyn, T.; Hall, D.; Daniel, L.; Kleppe, A.; Zwaag, S. van der; Groen, W.A.

    2016-01-01

    The poling behaviour of tetragonal lead zirconate titanate (PZT) piezoelectric ceramic particles in a weakly conductive ionomer polymer matrix is investigated using high energy synchrotron X-ray diffraction analysis. The poling efficiency, crystallographic texture and lattice strain of the PZT

  13. Thermal analysis and improvement of cascode GaN device package for totem-pole bridgeless PFC rectifier

    International Nuclear Information System (INIS)

    She, Shuojie; Zhang, Wenli; Liu, Zhengyang; Lee, Fred C.; Huang, Xiucheng; Du, Weijing; Li, Qiang

    2015-01-01

    The totem-pole bridgeless power factor correction (PFC) rectifier has a simpler topology and higher efficiency than other boost-type bridgeless PFC rectifiers. Its promising performance is enabled by using high-voltage gallium nitride (GaN) high-electron-mobility transistors, which have considerably better figures of merit (e.g., lower reverse recovery charges and less switching losses) than the state-of-the-art silicon metal-oxide-semiconductor field-effect transistors. Cascode GaN devices in traditional packages, i.e., the TO-220 and power quad flat no-lead, are used in the totem-pole PFC boost rectifier. But the parasitic inductances induced by the traditional packages not only significantly deteriorate the switching characteristics of the discrete GaN device but also adversely affect the performance of the built PFC rectifier. A new stack-die packaging structure with an embedded capacitor has been introduced and proven to be efficient in reducing parasitic ringing at the turn-off transition and achieving true zero-voltage-switching turn-on. However, the thermal dissipation capability of the device packaged in this configuration becomes a limitation on further pushing the operating frequency and the output current level for high-efficiency power conversion. This paper focuses on the thermal analysis of the cascode GaN devices in different packages and the GaN-based multichip module used in a two-phase totem-pole bridgeless PFC boost rectifier. A series of thermal models are built based on the actual structures and materials of the packaged devices to evaluate their thermal performance. Finite element analysis (FEA) simulation results of the cascode GaN device in a flip-chip format demonstrate the possibility of increasing the device switching speed while maintaining the peak temperature of the device below 125 °C. Thermal analysis of the GaN-based power module in a very similar structure is also conducted using the FEA method. Experimental data measured using

  14. AN ANALYSIS OF FIGURATIVE LANGUAGES USED IN COELHOS’S NOVEL ENTITLED “ALCHEMIST”

    Directory of Open Access Journals (Sweden)

    Trisna Dinillah Harya

    2017-05-01

    Full Text Available The title of this study is, “An Analysis of Figurative Languages Used in Paulo Coelho’s novel Entitled “The Alchemist”. The objectives of the study are to describe the types of the figurative language found in the book and to identify the contextual meaning of the figurative language. The method used in collecting the data related to the subject of this research is documentation method because the researcher collected the data from novel. This study was conducted by collecting any relevant data and information about the topic or problem of the study from novels and internet that are available for the analysis. The data collection used the following steps: reading the novel, and then selecting the data that used the types of figurative language. While the steps to analyze the data are identifying the types of figurative language according to Leech, identifying the contextual meaning of the figurative language, and the last is interpreting the data.The result shows that there are 70 sentences that have figurative language. From all the sentences, there are 30 items or 42.9% of simile, 27 items or 38.6% of personification, 12 items or 17.1% of metaphor, and 1 item or 1.4% of hyperbole. It can be indicated that the dominant type of figurative language in the novel is simile. The author uses simile to explain circumstances, to describe the characters, to express emotion of the characters, and to make his writing more vivid and entertaining. It can be concluded that figurative language has important roles in this novel. That‘s why the author used so many sentences that have figurative language in this novel. Using figurative language makes the novel more interesting to read, and helps the readers to imagine the story, the character based on the illustration that the author has already given in the story.

  15. Finite Element Analysis of Doorframe Structure of Single Oblique Pole Type in Container Crane

    Science.gov (United States)

    Cheng, X. F.; Wu, F. Q.; Tang, G.; Hu, X.

    2017-07-01

    Compared with the composite type, the single oblique pole type has more advantages, such as simple structure, thrift steel and high safe overhead clearance. The finite element model of the single oblique pole type is established in nodes by ANSYS, and more details are considered when the model is simplified, such as the section of Girder and Boom, torque in Girder and Boom occurred by Machinery house and Trolley, density according to the way of simplification etc. The stress and deformation of ten observation points are compared and analyzed, when the trolley is in nine dangerous positions. Based on the result of analysis, six dangerous points are selected to provide reference for the detection and evaluation of container crane.

  16. Design and analysis of a flux intensifying permanent magnet embedded salient pole wind generator

    Science.gov (United States)

    Guo, Yujing; Jin, Ping; Lin, Heyun; Yang, Hui; Lyu, Shukang

    2018-05-01

    This paper presents an improved flux intensifying permanent magnet embedded salient pole wind generator (FI-PMESPWG) with mirror symmetrical magnetizing directions permanent magnet (PM) for improving generator's performances. The air-gap flux densities, the output voltage, the cogging torque and the d- and q-axis inductances of FI-PMESPWG are all calculated and analyzed by using the finite element method (FEM). To highlight the advantages of the proposed FI-PMESPWG, an original permanent magnet embedded salient pole wind generator (PMESPWG) model is adopted for comparison under the same operating conditions. The calculating results show that the air-gap flux densities of FI-PMESPWG are intensified with the same magnet amounts because the PMs are set in a form of V shape in each pole. The difference between d-axis inductance and q-axis inductance of the proposed FI-PMESPWG is reduced. Thus, the output power of the proposed FI-PMESPWG reaches a higher value than that of the original PMESPWG at the same current phase angle. The cogging torque is diminished because the flux path is changed. All the analysis results indicate that the electromagnetic characteristics of the proposed FI-PMESPWG are significantly better than that of the original PMESPWG.

  17. Technological and economical analysis of salient pole and permanent magnet synchronous machines designed for wind turbines

    International Nuclear Information System (INIS)

    Gündoğdu, Tayfun; Kömürgöz, Güven

    2012-01-01

    Chinese export restrictions already reduced the planning reliability for investments in permanent magnet wind turbines. Today the production of permanent magnets consumes the largest proportion of rare earth elements, with 40% of the rare earth-based magnets used for generators and other electrical machines. The cost and availability of NdFeB magnets will likely determine the production rate of permanent magnet generators. The high volatility of rare earth metals makes it very difficult to quote a price. Prices may also vary from supplier to supplier to an extent of up to 50% for the same size, shape and quantity with a minor difference in quality. The paper presents the analysis and the comparison of salient pole with field winding and of peripheral winding synchronous electrical machines, presenting important advantages. A neodymium alloy magnet rotor structure has been considered and compared to the salient rotor case. The Salient Pole Synchronous Machine and the Permanent Magnet Synchronous Machine were designed so that the plate values remain constant. The Eddy current effect on the windings is taken into account during the design, and the efficiency, output power and the air-gap flux density obtained after the simulation were compared. The analysis results clearly indicate that Salient Pole Synchronous Machine designs would be attractive to wind power companies. Furthermore, the importance of the design of electrical machines and the determination of criteria are emphasized. This paper will be a helpful resource in terms of examination and comparison of the basic structure and magnetic features of the Salient Pole Synchronous Machine and Permanent Magnet Synchronous Machine. Furthermore, an economic analysis of the designed machines was conducted. - Highlights: ► Importance of the design of electrical machines and the determination of criteria are emphasized. ► Machines were investigated in terms of efficiency, weight and maintenance requirements. ► An

  18. Field analysis and enhancement of multi-pole magnetic components fabricated on printed circuit board

    International Nuclear Information System (INIS)

    Chiu, K.-C.; Chen, C.-S.

    2007-01-01

    A multi-pole magnetic component magnetized with a fine magnetic pole pitch of less than 1 mm is very difficult to achieve by using traditional methods. Moreover, it requires a precise mechanical process and a complicated magnetization system. Different fine magnetic pole pitches of 300, 350 and 400 μm have been accomplished on 9-pole magnetic components through the printed circuit board (PCB) manufacturing technology. Additionally, another fine magnetic pole pitch of 500 μm was also fabricated on a dual-layered (DL) wire circuit structure to investigate the field enhancement. After measurements, a gain factor of 1.37 was obtained in the field strength. The field variations among different magnetic pole pitches were analyzed in this paper

  19. Lower pole stones

    DEFF Research Database (Denmark)

    Sanguedolce, Francesco; Breda, Alberto; Millan, Felix

    2013-01-01

    PURPOSE: To assess efficacy and safety of prone- and supine percutaneous nephrolithotomy (PCNL) for the treatment of lower pole kidney stones. METHODS: Data from patients affected by lower pole kidney stones and treated with PCNL between December 2005 and August 2010 were collected retrospectively...... by seven referral centres. Variables analysed included patient demographics, clinical and surgical characteristics, stone-free rates (SFR) and complications. Statistical analysis was conducted to compare the differences for SFRs and complication rates between prone- and supine PCNL. RESULTS: One hundred...... seventeen patients underwent PCNL (mean stone size: 19.5 mm) for stones harboured only in the lower renal pole (single stone: 53.6 %; multiple stones: 46.4 %). A higher proportion of patients with ASA score ≥ 3 and harbouring multiple lower pole stones were treated with supine PCNL (5.8 vs. 23.1 %; p = 0...

  20. Numerical Study on Guided Wave Propagation in Wood Utility Poles: Finite Element Modelling and Parametric Sensitivity Analysis

    Directory of Open Access Journals (Sweden)

    Yang Yu

    2017-10-01

    Full Text Available Recently, guided wave (GW-based non-destructive evaluation (NDE techniques have been developed and considered as a potential candidate for integrity assessment of wood structures, such as wood utility poles. However, due to the lack of understanding on wave propagation in such structures, especially under the effect of surroundings such as soil, current GW-based NDE methods fail to properly account for the propagation of GWs and to contribute reliable and correct results. To solve this critical issue, this work investigates the behaviour of wave propagation in the wood utility pole with the consideration of the influence of soil. The commercial finite element (FE analysis software ANSYS is used to simulate GW propagation in a wood utility pole. In order to verify the numerical findings, the laboratory testing is also conducted in parallel with the numerical results to experimentally verify the effectiveness of developed FE models. Finally, sensitivity analysis is also carried out based on FE models of wood pole under different material properties, boundary conditions and excitation types.

  1. Figure analysis: A teaching technique to promote visual literacy and active Learning.

    Science.gov (United States)

    Wiles, Amy M

    2016-07-08

    Learning often improves when active learning techniques are used in place of traditional lectures. For many of these techniques, however, students are expected to apply concepts that they have already grasped. A challenge, therefore, is how to incorporate active learning into the classroom of courses with heavy content, such as molecular-based biology courses. An additional challenge is that visual literacy is often overlooked in undergraduate science education. To address both of these challenges, a technique called figure analysis was developed and implemented in three different levels of undergraduate biology courses. Here, students learn content while gaining practice in interpreting visual information by discussing figures with their peers. Student groups also make connections between new and previously learned concepts on their own while in class. The instructor summarizes the material for the class only after students grapple with it in small groups. Students reported a preference for learning by figure analysis over traditional lecture, and female students in particular reported increased confidence in their analytical abilities. There is not a technology requirement for this technique; therefore, it may be utilized both in classrooms and in nontraditional spaces. Additionally, the amount of preparation required is comparable to that of a traditional lecture. © 2016 by The International Union of Biochemistry and Molecular Biology, 44(4):336-344, 2016. © 2016 The International Union of Biochemistry and Molecular Biology.

  2. Figures of language in magazine journalism: An analysis of rhetorical forms in stories

    Directory of Open Access Journals (Sweden)

    Larissa Lauff er Reinhardt Azubel

    2013-09-01

    Full Text Available Among the different rhetorical strategies of contemporary story, one stands out peculiarly in magazine journalism, the employment of Figures of Language as forms of enchantment and persuasion. Considering the proliferation of information on more immediate media, magazines like Veja and Época, objects of analysis of this study, produce a kind of text with more complex functions. Concomitantly pragmatic and poetic, the interpretive story intends to guide, to make knowing, thinking, feeling and deciding. There is an aesthetic work, of creation of an emotional ambience, in order that the raised arguments and propositions gain the adhesion of the reader. Thus, we aim to analyse the function of Figures of Language to understand and explain how the two most widely read magazines in the country weave meanings so penetrant.

  3. Spring Snow-Albedo Feedback Analysis Over the Third Pole: Results From Satellite Observation and CMIP5 Model Simulations

    Science.gov (United States)

    Guo, Hui; Wang, Xiaoyi; Wang, Tao; Ma, Yaoming; Ryder, James; Zhang, Taotao; Liu, Dan; Ding, Jinzhi; Li, Yue; Piao, Shilong

    2018-01-01

    The snow-albedo feedback is a crucial component in high-altitude cryospheric change but is poorly quantified over the Third Pole, encompassing the Karakoram and Tibetan Plateau. Here we present an analysis of present-day and future spring snow-albedo feedback over the Third Pole, using a 28 year satellite-based albedo and the latest climate model simulations. We show that present-day spring snow-albedo feedback strength is primarily determined by the decrease in albedo due to snow metamorphosis, rather than that due to reduced snow cover in the Karakoram, but not found in Southeastern Tibet. We further demonstrate an emergent relationship between snow-albedo feedback from the seasonal cycle and that from climate change across models. Combined with contemporary satellite-based snow-albedo feedback from seasonal cycle, this relationship enables us to estimate that the feedback strength for the Karakoram with a relatively high glaciated area is -2.42 ± 0.48% K-1 under an unmitigated scenario, which is much stronger than that for Southeastern Tibet (-1.64 ± 0.48% K-1) and for the Third Pole (-0.89 ± 0.44% K-1), respectively. Moreover, it is noteworthy that the magnitude of the constrained strength is only half of the unconstrained model estimate for the Third Pole, suggesting that current climate models generally overestimate the feedback of spring snow change to temperature change based on the unmitigated scenario.

  4. "I Kinda Feel Like Wonder Woman": An Interpretative Phenomenological Analysis of Pole Fitness and Positive Body Image.

    Science.gov (United States)

    Dimler, Ariel J; McFadden, Kimberley; McHugh, Tara-Leigh F

    2017-10-01

    The purpose of this research was to describe and interpret the positive body image experiences of women actively engaged in pole fitness. A total of seven women between the ages of 20 and 36 years participated in semistructured one-on-one interviews and follow-up interviews. Participant observation was also used to generate data. Data were analyzed using an interpretative phenomenological analysis approach, and the positive body image experiences of women are represented by five themes: (a) observation and exposure fostering body acceptance, (b) performance promoting self-confidence, (c) personal growth and sexual expression, (d) unconditional community support creates comfort, and (e) body appreciation through physical skill development. Findings suggest that women engaging in pole fitness may experience positive body image, and the words of participants provide insight into the components of pole fitness that may foster positive body image. Pole fitness may provide a unique exercise context whereby women can develop and maintain positive body image.

  5. The controlled ecological life support system Antarctic analog project: Analysis of wastewater from the South Pole Station, Antarctica, volume 1

    Science.gov (United States)

    Flynn, Michael T.; Bubenheim, David L.; Straight, Christian L.; Belisle, Warren

    1994-01-01

    The Controlled Ecological Life Support system (CELSS) Antarctic Analog Project (CAAP) is a joint National Science Foundation (NSF) and NASA project for the development, deployment and operation of CELSS technologies at the Amundsen-Scott South Pole Station. NASA goals are operational testing of CELSS technologies and the conduct of scientific studies to facilitate technology selection and system design. The NSF goals are that the food production, water purification, and waste treatment capabilities which will be provided by CAAP will improve the quality of life for the South Pole inhabitants, reduce logistics dependence, and minimize environmental impacts associated with human presence on the polar plateau. This report presents an analysis of wastewater samples taken from the Amundsen-Scott South Pole Station, Antarctica. The purpose of the work is to develop a quantitative understanding of the characteristics of domestic sewage streams at the South Pole Station. This information will contribute to the design of a proposed plant growth/waste treatment system which is part of the CELSS Antarctic Analog Project (CAAP).

  6. Figure5

    Data.gov (United States)

    U.S. Environmental Protection Agency — This is an R statistics package script that allows the reproduction of Figure 5. The script includes the links to large NetCDF files that the figures access for O3,...

  7. Figure 7

    Data.gov (United States)

    U.S. Environmental Protection Agency — Two files provided. The ENS.tar file contains text data files (*.csv) used to create Figure 7 and Figure 8. The Figure7.txt is an R script that reads these files and...

  8. Image, measure, figure: a critical discourse analysis of nursing practices that develop children.

    Science.gov (United States)

    Einboden, Rochelle; Rudge, Trudy; Varcoe, Colleen

    2013-07-01

    Motivated by discourses that link early child development and health, nurses engage in seemingly benign surveillance of children. These practices are based on knowledge claims and technologies of developmental science, which remain anchored in assumptions of the child body as an incomplete form with a universal developmental trajectory and inherent potentiality. This paper engages in a critical discursive analysis, drawing on Donna Haraway's conceptualizations of technoscience and figuration. Using a contemporary developmental screening tool from nursing practice, this analysis traces the effects of this tool through production, transformation, distribution, and consumption. It reveals how the techniques of imaging, abstraction, and measurement collide to fix the open, transformative child body in a figuration of the developing child. This analysis also demonstrates how technobiopower infuses nurses' understandings of children and structures developmentally appropriate expectations for children, parents, and nurses. Furthermore, it describes how practices that claim to facilitate healthy child development may inversely deprive children of agency and foster the production of normal or ideal children. An alternative ontological perspective is offered as a challenge to the individualism of developmental models and other dominant ideologies of development, as well as practices associated with these ideologies. In summary, this analysis argues that nurses must pay closer attention to how technobiopower infuses practices that monitor and promote child development. Fostering a critical understanding of the harmful implications of these practices is warranted and offers the space to conceive of human development in alternate and exciting ways. © 2013 John Wiley & Sons Ltd.

  9. Sampling with poling-based flux balance analysis: optimal versus sub-optimal flux space analysis of Actinobacillus succinogenes.

    Science.gov (United States)

    Binns, Michael; de Atauri, Pedro; Vlysidis, Anestis; Cascante, Marta; Theodoropoulos, Constantinos

    2015-02-18

    Flux balance analysis is traditionally implemented to identify the maximum theoretical flux for some specified reaction and a single distribution of flux values for all the reactions present which achieve this maximum value. However it is well known that the uncertainty in reaction networks due to branches, cycles and experimental errors results in a large number of combinations of internal reaction fluxes which can achieve the same optimal flux value. In this work, we have modified the applied linear objective of flux balance analysis to include a poling penalty function, which pushes each new set of reaction fluxes away from previous solutions generated. Repeated poling-based flux balance analysis generates a sample of different solutions (a characteristic set), which represents all the possible functionality of the reaction network. Compared to existing sampling methods, for the purpose of generating a relatively "small" characteristic set, our new method is shown to obtain a higher coverage than competing methods under most conditions. The influence of the linear objective function on the sampling (the linear bias) constrains optimisation results to a subspace of optimal solutions all producing the same maximal fluxes. Visualisation of reaction fluxes plotted against each other in 2 dimensions with and without the linear bias indicates the existence of correlations between fluxes. This method of sampling is applied to the organism Actinobacillus succinogenes for the production of succinic acid from glycerol. A new method of sampling for the generation of different flux distributions (sets of individual fluxes satisfying constraints on the steady-state mass balances of intermediates) has been developed using a relatively simple modification of flux balance analysis to include a poling penalty function inside the resulting optimisation objective function. This new methodology can achieve a high coverage of the possible flux space and can be used with and without

  10. Instrument for analysis of electric motors based on slip-poles component

    Science.gov (United States)

    Haynes, H.D.; Ayers, C.W.; Casada, D.A.

    1996-11-26

    A new instrument is described for monitoring the condition and speed of an operating electric motor from a remote location. The slip-poles component is derived from a motor current signal. The magnitude of the slip-poles component provides the basis for a motor condition monitor, while the frequency of the slip-poles component provides the basis for a motor speed monitor. The result is a simple-to-understand motor health monitor in an easy-to-use package. Straightforward indications of motor speed, motor running current, motor condition (e.g., rotor bar condition) and synthesized motor sound (audible indication of motor condition) are provided. With the device, a relatively untrained worker can diagnose electric motors in the field without requiring the presence of a trained engineer or technician. 4 figs.

  11. Comparative analysis of morphogeometric parameters of forward cranial pole depending on type of a skull basis

    Directory of Open Access Journals (Sweden)

    Aleshkina О.Yu.

    2012-03-01

    Full Text Available The purpose of the work is comparison of parameters of a forward cranial pole depending on type of a skull basis. The research material contained 100 adult skulls divided into three craniotypes. The method of craniotopometry was used for measuring the parameters and further calculation of average value and their comparison among themselves. Results. The research helped to reveal that length of a forward cranial pole, length of a lateral part on the right and at the left, a corner f.c.-s-n prevail at flexibasilar craniotype. Conclusions. The width of a forward cranial pole, width of a lateral part on the right and at the left, a corner f.c.-n-g are more at platibasilar craniotype

  12. 3-D finite element analysis of claw-poled stepping motor

    International Nuclear Information System (INIS)

    Kawase, Yoshihiro; Yamaguchi, Tadashi; Mizuno; Koike, Yoshikazu

    2002-01-01

    Stepping motors are widely used for various electric instruments. It is necessary for the optimum design to analyze the magnetic field accurately. The 3-D finite element method with edge elements taking into account the rotation of the rotor has been applied to analyze the magnetic field of a claw-poled stepping motor. (Author)

  13. Design and analysis of a transversal-flux switched-reluctance-linear-machine pole-pair

    Energy Technology Data Exchange (ETDEWEB)

    Salo, J.

    1999-07-01

    The Switched Reluctance technology is probably best suited for industrial low-speed or zerospeed applications where the power can be small but the torque or the force in linear movement cases might be relatively high. Because of its simple structure the Sit-motor is an interesting alternative for low power applications where pneumatic or hydraulic linear drives are to be avoided. This study analyses the basic parts of an LSR-motor which are the two mover poles and one stator pole and which form the 'basic pole pair' in linear-movement transversal-flux switched-reluctance motors. The static properties of the basic pole pair are modelled and the basic design rules are derived. The models developed are validated with experiments. A one-sided one-polepair transversal-flux switched-reluctance-linear-motor prototype is demonstrated and its static properties are measured. The modelling of the static properties is performed with FEM-calculations. Two-dimensional models are accurate enough to model the static key features for the basic dimensioning of LSRmotors. Three-dimensional models must be used in order to get the most accurate calculation results of the static traction force production. The developed dimensioning and modelling methods, which could be systematically validated by laboratory measurements, are the most significant contributions of this thesis. (orig.)

  14. An Analysis of Figurative Language Elements upon an American Short Story Entitled “The Monkey’s Paw

    Directory of Open Access Journals (Sweden)

    Nur Muhammad Ardiansyah

    2018-04-01

    Full Text Available This article describes the study of semantic in a specified domain of figurative language upon a selected work of American English literature, in form of short story written by the renowned writer and author, William Wymark Jacobs, entitled as ‘The Monkey’s Paw’. Several objectives are deduced by the researcher in quest of finding the forms of this figurative language within the passage. Briefly, figurative language itself is a feature of every languages, which emphasized the use of expression to symbolize a different meaning from the usual literal interpretation. In our analysis of ‘The Monkey’s Paw’, the varieties of figurative language: Metaphor, Personification, Hyperbole, Symbolism, also another terms used to represent unusual words construction or combination such as Onomatopoeia, Idiom, and even Imagery, are discussed in order in relation with true meaning discovery behind each figurative language properties.

  15. Regular figures

    CERN Document Server

    Tóth, L Fejes; Ulam, S; Stark, M

    1964-01-01

    Regular Figures concerns the systematology and genetics of regular figures. The first part of the book deals with the classical theory of the regular figures. This topic includes description of plane ornaments, spherical arrangements, hyperbolic tessellations, polyhedral, and regular polytopes. The problem of geometry of the sphere and the two-dimensional hyperbolic space are considered. Classical theory is explained as describing all possible symmetrical groupings in different spaces of constant curvature. The second part deals with the genetics of the regular figures and the inequalities fo

  16. Figure Drawing

    Science.gov (United States)

    Herberholz, Barbara

    2010-01-01

    The figure has "figured" prominently in the choice of subject matter for many artists throughout history. Whether they may choose to depict it in an abstract or expressive form, most artists are quite capable of realistic portrayals of the human form. And all people know that one of the very first drawings made by young children is a symbol for…

  17. Optimization Design and Performance Analysis of a PM Brushless Rotor Claw Pole Motor with FEM

    Directory of Open Access Journals (Sweden)

    Zhenyang Zhang

    2016-07-01

    Full Text Available A new type of permanent magnet (PM brushless claw pole motor (CPM with soft magnetic composite (SMC core is designed and analyzed in this paper. The PMs are mounted on the claw pole surface, and the three-phase stator windings are fed by variable-frequency three-phase AC currents. The advantages of the proposed CPM are that the slip rings on the rotor are cast off and it can achieve the efficiency improvement and higher power density. The effects of the claw-pole structure parameters, the air-gap length, and the PM thinner parameter of the proposed CPM on the output torque are investigated by using three-dimensional time-stepping finite element method (3D TS-FEM. The optimal rotor structure of the proposed CPM is obtained by using the response surface methodology (RSM and the particle swarm optimization (PSO method and the comparison of full-load performances of the proposed CPM with different material cores (SMC and silicon steel is analyzed.

  18. Figure-of-merit analysis and cost effectiveness of low-level radioactive waste treatment systems

    Science.gov (United States)

    Cox, N. D.; Falconer, K. L.; McCormack, M. D.; Hootman, H. D.; Thompson, T. K.

    Two studies were performed to assess low level waste treatment systems that are available commercially for volume reduction and/or solidification. In the first, a Figure-of-Merit (FOM) decision analysis technique was used to evaluate fourteen low level radioactive waste processing systems on their ability to treat power reactor wastes. The assessment of the various processing systems was accomplished using a five member task force. The systems were judged on eleven major criteria and twenty subcriteria. The system judged superior to all the others was compaction of dry wastes with liquid wastes and sludges being directly incorporated into concrete. This was also the lowest cost system. The controlled air incinerator was judged the preferred incineration process. The Werner-Pfleider bitumen extruduer was the preferred liquid waste treatment system. In the second study, the cost economy of volume reduction measured in land disposal dollars was investigated.

  19. Figure 3

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Figure.tar.gz contains a directory for each WRF ensemble run. In these directories are *.csv files for each meteorology variable examined. These are comma...

  20. Figure6

    Data.gov (United States)

    U.S. Environmental Protection Agency — R script for the reproduction of Figure6. This script accesses archived CMAQ and WRF model output on US EPA's HPC sol computer system and plots forward trajectories...

  1. Experimental model of upper-pole nephrectomy using human tridimensional endocasts: analysis of vascular injuries.

    Science.gov (United States)

    Favorito, Luciano Alves; Brito, Djair Aquino; Sampaio, Francisco J B

    2011-01-01

    The aim of the study is to establish an experimental model for upper-pole nephrectomy using tridimensional endocasts of human kidneys. We studied 104 kidneys from 52 adults. The ureters, veins, and arteries were dissected and injected with yellow, blue, and red polyester resin, respectively. While this resin was still in the gel state, we performed upper-pole guillotine sections at various distances from the hilar zone, thereby dividing our sample in four groups: A. Hilar zone: 22 kidneys (10 with vein and ureter injection); B. 0.5 cm from the hilar zone, 32 kidneys (9 with vein and ureter); C. 1.0 cm from the hilar zone, 24 kidneys (11 with vein and ureter); and D. 1.5 cm from the hilar zone, 26 kidneys (6 with vein and ureter). We also determined the mean distance from the retropelvic artery to the section plane. Sections performed at the hilar region and at 0.5 cm from hilar region had an alarming rate of injuries to the retropelvic artery and vein, upper segmental artery, and upper venous trunk. In both groups, the distance between the section plane and retropelvic artery was a mean less than 1.0 cm. Sections performed at 1.0 cm and at 1.5 cm from the hilar region had a significantly lower injury rate, with mean distance between section plane and retropelvic artery more than 1.0 cm. Upper-pole nephrectomies performed at less than 1.0 cm from the hilar zone had a significantly high incidence of injuries in larger arteries. Nephrectomies at this level should therefore be avoided or performed with maximum care.

  2. Cranial pole nephrectomy in the pig model: anatomic analysis of arterial injuries in tridimensional endocasts.

    Science.gov (United States)

    Pereira-Sampaio, Marco A; Henry, Robert W; Favorito, Luciano A; Sampaio, Francisco J B

    2012-06-01

    To assess the intrarenal arteries injuries after cranial pole nephrectomy in a pig model to compare these findings with those in humans. Polyester resin was injected through the ureter and the renal artery to make three-dimensional casts of 61 pig kidneys. The cranial pole of the kidneys was sectioned at four different sites before the solidification of the resin, and the casts were examined for arterial damage. Section performed through the hilus (15 kidneys): The cranial division of the renal artery was sectioned in two (13.33%) cases, the ventral branch of the cranial division of the renal artery was sectioned in 13 (86.7%) cases, and the dorsal branch of the cranial division of the renal artery was sectioned in 11 (73.34%) cases. Section at 0.5 cm cranial to the hilus (16 kidneys): The cranial division of the renal artery was sectioned in 1 (6.25%) case, the ventral branch of the cranial division of the renal artery was sectioned in 14 (87.5%) cases, and the dorsal branch of the cranial division of the renal artery was sectioned in 13 (81.25%) cases. Section at 1.0 cm cranial to the hilus (15 kidneys): The ventral branch of the cranial division of the renal artery was sectioned in five (33.33%) cases, and the dorsal branch of the cranial division of the renal artery was injured in five (33.33%) cases. Section at 1.5 cm cranial to the hilus (15 kidneys): No lesions were found in the main arteries, only in the interlobular branches. As previously demonstrated in humans, sections at 1.0 cm or more cranially to the hilus in pigs also showed a significant decrease in damage to the major intrarenal arteries. Therefore, as regards arterial damage, the pig kidney is a useful model for partial nephrectomy in the cranial (upper) pole.

  3. High-mast light poles anchor nut loosening in Alaska : an investigation of field monitoring and finite-element analysis.

    Science.gov (United States)

    2014-09-01

    High mast lighting poles (HMLPs) are tall, roadside structures effective for lighting large areas of highways and intersections. The Alaska Department of Transportation : and Public Facilities (AKDOT&PF) maintains 118 such poles in the greater Anchor...

  4. Kidney lower pole pelvicaliceal anatomy: comparative analysis between intravenous urogram and three-dimensional helical computed tomography.

    Science.gov (United States)

    Rachid Filho, Daibes; Favorito, Luciano A; Costa, Waldemar S; Sampaio, Francisco J B

    2009-12-01

    The aim of our study was to evaluate if there is any advantage of three-dimensional helical computed tomography (3D-HCT) over intravenous urogram (IVU) in the morphometric and morphological analysis of lower pole spatial anatomy of the kidney. We analyzed 52 renal collecting systems in 30 patients, ranging in age from 23 to 80 years. The study compared the following features: (1) the angle formed between the lower infundibulum and the renal pelvis (i.e., lower infundibulum-pelvic angle [IPA]), (2) the lower infundibulum diameter (ID), and (3) the spatial distribution and number of lower pole calices (i.e., caliceal distribution [CD]). The study started with the 3D-HCT images obtained for posterior reconstruction and analysis. Afterward, we obtained anteroposterior and oblique IVU images. For IPA (in degrees) we found a mean +/- standard deviation (SD) value of 75.79 +/- 15.3 with 3D-HCT and 77.4 +/- 17.17 with IVU, which were not statistically significant. For ID (in mm) we found a mean +/- SD value of 7.5 +/- 2.92 with 3D-HCT and 8.15 +/- 3.27 with IVU. For CD we found a mean +/- SD value of 2.37 +/- 0.75 calices with 3D-HCT and 2.43 +/- 0.67 calices with IVU. On analyzing the difference between 3D-HCT and IVU, we found a mean +/- SD value of 0.06 +/- 0.51, and we verified that 74.5% of the examinations compared did not present statistically significant difference, with a Wilcoxon p-value of 0.405. Although 3D-HCT is more precise to study calculus location, tumors, and vessels, IVU was also demonstrated to be as precise as 3D-HCT for studying the lower pole spatial anatomy. We did not observe any statistically significant difference in the measurements of IPA, ID, and CD obtained using 3D-HCT when compared with those obtained using IVU. Therefore, 3D-HCT does not present any advantage over IVU in the evaluation of lower pole caliceal anatomy.

  5. Figures1

    OpenAIRE

    2014-01-01

    NB. Soulignons que cette carte, établie à partir de statistiques officielles, est en contradiction avec de nombreuses enquêtes locales.Source : Diop Salif, Rekacewicz Philippe, 2003, Atlas mondial de l’eau, Paris, Éditions Autrement.Figure 1. Part de la population urbaine ayant accès à l'eau potable en Afrique subsaharienne Source : Diop, Rekacewicz, 2003.Figure 2. Afrique subsaharienne : pénurie d'eau douce et stress hydrique en 1990 et 2025 (projection) Source : Diop, Rekacewicz, 2003.Fig...

  6. Detection of preperimetric glaucoma using Bruch membrane opening, neural canal and posterior pole asymmetry analysis of optical coherence tomography.

    Science.gov (United States)

    Hua, Rui; Gangwani, Rita; Guo, Lei; McGhee, Sarah; Ma, Xiaoli; Li, Jun; Yao, Kai

    2016-02-17

    We analysed retinal nerve fibre layer (RNFL) defects in eyes with normal circumpapillary RNFL (cpRNFL) thickness using posterior pole asymmetry analysis (PPAA) and investigated the parameters of Bruch membrane opening (BMO) and neural canals using enhanced depth imaging spectral domain optical coherence tomography (EDI-SDOCT). A total of 112 preperimetric glaucomatous eyes of 92 patients were examined to obtain cpRNFL thickness using SD-OCT. Posterior pole asymmetry analysis (PPAA) and central cross-sectional images of the optic nerve head (ONH) were obtained using EDI-SDOCT. Minimal and horizontal distances between the BMO and ONH surfaces (BMOM, BMOH) and the terminal of retinal pigment epithelium (RPE) and ONH surfaces (RPEM, RPEH) were measured. The distribution of the absolute black cells in PPAA was more concentrated in eyes with "U"-shaped neural canals (p receiver operating characteristic curve of the ratio of RPEM to RPEH (RPE-R, 0.771 ± 0.08) was significantly larger than the ratio of BMOM to BMOH (BMO-R, 0.719 ± 0.009) for PPAA results. A U-shaped neural canal, lower ratio of RPEM to RPEH, and lower ratio of BMOM to BMOH were considered early indicators of RNFL defects in preperimetric glaucomatous eyes with normal cpRNFL.

  7. Ergonomic analysis of workplaces in the iron casting industrial pole in Claudio, Minas Gerais--Brazil.

    Science.gov (United States)

    Mottin, Artur Caron; de Miranda, Carlos A Silva; Pagnan, Caroline Salvan; Monken, Olavo Pena

    2012-01-01

    Brazil is currently recognized as the 10th largest producer of castings, and the city of Cláudio, MG is known worldwide as the "Greatest foundry and metallurgical pole in Latin America", with more than 80 companies. However, this large number of enterprises and increasing investments in product development has demanded an increase in manpower and working hours of workers in the sector, proportionally increasing the incidence of occupational related health problems like RSI (repetitive strain injury), WMSDs (work-related musculoskeletal disorders) and industrial accidents. This article aims to characterize the industry from previously conducted case studies to relate the main causes of occupational diseases and outline possible interventions through design, showing how this tool can contribute to improve the working environment, workplace, tools and equipment through ergonomics adjustments.

  8. Figure-of-merit analysis and cost effectiveness of low-level radioactive waste treatment systems

    International Nuclear Information System (INIS)

    Cox, N.D.; Falconer, K.L.; McCormack, M.D.; Hootman, H.D.; Thompson, T.K.

    1982-01-01

    Two studies were performed to assess low-level waste treatment systems that are available commercially for volume reduction and/or solidification. In the first, a Figure-of-Merit (FOM) decision analysis technique was used to evaluate fourteen low-level radioactive waste processing systems on their ability to treat power reactor wastes. The assessment of the various processing systems was accomplished using a five member task force. The systems were judged on eleven major criteria and twenty subcriteria. The system judged superior to all the others was compaction of dry wastes with liquid wastes and sludges being directly incorporated into concrete. This was also the lowest cost system. The controlled air incinerator was judged the preferred incineration process. The Werner-Pfleider bitumen extruder was the preferred liquid waste treatment system. In the second study, the cost economy of volume reduction measured in land disposal dollars was investigated. The greatest cost savings with volume reduction were realized with a BWR using a deep bed condensate polishing system; the least with a PWR with condensate polishing. For both BWR systems and PWRs without condensate cleanup, over 80% of the savings in land disposal dollars resulted from volume reduction of liquid waste streams (concentrated liquids and filter sludge). For a PWR with a condensate polishing system, which had the least cost effective system for volume reduction, about one-third of the savings resulting from incineration of spent resin and compactible trash was offset by the increased expense of casks required for transporting concentrated liquids which have undergone additional volume reduction

  9. Analysis of Stationary, Photovoltaic-based Surface Power System Designs at the Lunar South Pole

    Science.gov (United States)

    Freeh, Joshua E.

    2009-01-01

    Combinations of solar arrays and either batteries or regenerative fuel cells are analyzed for a surface power system module at the lunar south pole. The systems are required to produce 5 kW of net electrical power in sunlight and 2 kW of net electrical power during lunar night periods for a 10-year period between 2020 and 2030. Systems-level models for energy conservation, performance, degradation, and mass are used to compare to various systems. The sensitivities of important and/or uncertain variables including battery specific energy, fuel cell operating voltage, and DC-DC converter efficiency are compared to better understand the system. Switching unit efficiency, battery specific energy, and fuel cell operating voltage appear to be important system-level variables for this system. With reasonably sized solar arrays, the regenerative fuel cell system has significantly lower mass than the battery system based on the requirements and assumptions made herein. The total operational time is estimated at about 10,000 hours in battery discharge/fuel cell mode and about 4,000 and 8,000 hours for the battery charge and electrolyzer modes, respectively. The estimated number of significant depth-of-discharge cycles for either energy storage system is less than 100 for the 10-year period.

  10. Analysis of the 3D magnetic field and its errors for undulators with iron poles

    Energy Technology Data Exchange (ETDEWEB)

    Ingold, G.; Bahrdt, J.; Gaupp, A. [BESSY GmbH, Berlin (Germany)] [and others

    1995-12-31

    The attainable field strength and field quality, such as the optical phase error, the electron beam displacement within the undulator and higher order multipoles of the magnetic field, are discussed. These issues are critical to the design and construction of short period undulators for use in short wavelength FEL or for operation in third generation light sources. We discuss two approaches: (i) For superferric undulators the construction of a full length device would rely on the optimum sorting of precision machined undulator segments. Magnetic data on segments with 20 periods (period length 8.80mm) will be presented. (ii) For hybrid undulators the sorting has to be done on individual poles and magnets. For this approach typical error sources such as machining tolerances, magnetization errors of the permanent magnet material and assembly errors are modeled in 3D and compared to induced errors on an existing hybrid undulator segment. In case of undulators having a full length of hundred periods at least five times as many individual parts have to be characterized. This should be done automatically where both the mechanical and magnetic data before and after the assembly of the magnetic structure are recorded in one step. A CNC programmable measuring device suitable for this task will shortly be presented.

  11. Eye-Tracking Analysis of the Figures of Anti-Smoking Health Promoting Periodical's Illustrations

    Science.gov (United States)

    Maródi, Ágnes; Devosa, Iván; Steklács, János; Fáyné-Dombi, Alice; Buzas, Zsuzsanna; Vanya, Melinda

    2015-01-01

    Nowadays new education technologies and e-communication devices give new measuring and assessing tools for researchers. Eye-tracking is one of these new methods in education. In our study we assessed 4 figures from the anti-smoking heath issues of National Institute for Health Development. In the study 22 students were included from a 7th grade…

  12. A Behavioral Analysis of Figurative Language in Psychotherapy: One Session in a Single Case Study.

    Science.gov (United States)

    Pollio, Howard R.; Barlow, Jack M.

    Assuming that all problem solving has both its rational and poetic aspects and that the solution to a problem is often found in the poetic well before it surfaces in the rational, this study examined in detail the ebb and flow of figurative language as it occurred in the course of a single, highly successful hour of gestalt therapy involving both…

  13. Comparison of 2D and 3D magnetic field analysis of single-phase shaded pole induction motors

    Directory of Open Access Journals (Sweden)

    Adem Dalcali

    2016-03-01

    Full Text Available There has always been doubt on the accuracy of 2D analysis of small electric machines. To investigate the validity of this doubt, in this present work a small uni-coil shaded-pole induction motor is analyzed in 2D and 3D and the results are compared. In order to maintain the paper size as compact, the analysis is limited to the air-gap flux density distribution, variation of the main winding inductance against current and the force acting on the rotor body; which are the important components of the motor performance. It is found that although 3D analysis consumes several times more computing time and storage space, improvement achieved in performance by use of 3D analysis is not very significant. % rms difference between the two cases is obtained as 0.76% for the main winding inductance and 0.59% for the force acting on the rotor body. Also the air-gap flux density distribution obtained from the two types of analysis is found to be very close to each other. Therefore it is concluded that despite more computing time, more storage requirements and more human effort in the case of 3D analysis, the degree of improvement is not proportionally rewarding, and hence, 2D analysis is sufficient for the analysis of small machines.

  14. Sensitivity Analysis of the Dynamic Behavior of a Salient-Pole Synchronous Machine Considering the Static Rotor Eccentricity Effect

    Directory of Open Access Journals (Sweden)

    A. Román Messina

    2012-10-01

    Full Text Available This paper presents the sensitivity analysis of the behavior of a synchronous machine using the winding functiontheory considering the effect of static air-gap eccentricity. The winding function theory as a method to calculate theinductances of synchronous machines from the geometry and the actual arranging of the windings is presented. Then,detailed numerical simulations are carried out to examine the impact of eccentricity on the steady state regimes. Theimportant role of static eccentricity and its links with various symmetrical and asymmetrical operating conditions arediscussed as well as its influence on the machine parameters and performance are investigated. Experimental andanalytical parameter results are presented for a 60 Hz, six-pole laboratory synchronous machine connected to aninfinite bus under various static eccentricity conditions.

  15. Magnet pole tips

    Science.gov (United States)

    Thorn, Craig E.; Chasman, Chellis; Baltz, Anthony J.

    1984-04-24

    An improved magnet which more easily provides a radially increasing magnetic field, as well as reduced fringe field and requires less power for a given field intensity. The subject invention comprises a pair of spaced, opposed magnetic poles which further comprise a pair of pole roots, each having a pole tip attached to its center. The pole tips define the gap between the magnetic poles and at least a portion of each pole tip is separated from its associated pole root. The separation begins at a predetermined distance from the center of the pole root and increases with increasing radial distance while being constant with azimuth within that portion. Magnets in accordance with the subject invention have been found to be particularly advantageous for use in large isochronous cyclotrons.

  16. Design Pattern Retrieval and Style Analysis for Content Creation of Comic Figures

    Directory of Open Access Journals (Sweden)

    Bor-Shen Lin

    2014-01-01

    Full Text Available Placement of objects within a constrained space is a common challenge for designers; it is associated with decisions regarding the furnishing of a space with furniture, collocation of dressings, flower arrangement, and design of comic figures. Though many design elements can be shared on the Internet in the current age of technology, it is still not easy to compare or search for design patterns based on these elements. Thus, it is difficult for designers to efficiently retrieve similar patterns designed by others, to compare them, or to learn from them. This paper proposes the architecture of representing, comparing, retrieving, and analyzing the design patterns of digital contents for design support. This scheme can help the designers to explore the huge space of design patterns efficiently, to analyze and summarize the design styles quickly, and to improve design skills and stimulate imaginations effectively during the process of learning or creating. The proposed scheme has been verified with a design support system for the content creation of comic figures. It is generally applicable to the creation of digital contents and shows potential for applications in the fields of design and education.

  17. A FIGURATIVE LANGUAGE ANALYSIS AND FREQUENCY USED OF MELLY GOESLAW’S MASTERPIECES IN SOUNDTRACK DRAMA

    Directory of Open Access Journals (Sweden)

    Henny Uswatun Hasanah

    2013-05-01

    Full Text Available Who don’t know about Melly Goeslaw? There are many things that she does, such as to be a singer, to be songwriter for other people, to be a singer who feat/duet with other people, or to be songwriter for romantic drama that makes her to be famous with a nickname “the Queen of Soundtrack”. She has a lot of songs that is so phenomenal by beautiful words and smooth tone music which makes the listeners to be happiness and like the music so much. There are many songs that use figurative languages which contains the meaningful message from every song from 1990s until 2013. Then, it gives motivation and inspiration by her stylistically in romantic or beautiful words for all of audience who listen it.

  18. An observational analysis of recent female dental enrolment figures in the Republic of Ireland.

    Science.gov (United States)

    Neville, P

    2017-11-01

    This research investigates the participation and completion rates of Irish female undergraduate dental students from 2003 to 2014. The Higher Education Authority database was accessed and dental students enrolment and completion figures were extracted, compiled and analysed according to gender distribution. From 2003 to 2014, there has been a steady increase in the number of female students enrolled in and completing Ireland's undergraduate dentistry programmes. The findings reveal that a distinct process of feminisation has occurred in Ireland since the early 2000s. The feminisation of dentistry in Ireland will impact on workforce projections for the Irish dental service. However, more research needs to be undertaken to explore why female students are motivated to pursue a career in dentistry. Due regard also needs to be given to ensuring these women progress in their dental career. Dental education can play an important role here. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  19. Analysis of Scaling Law and Figure of Merit of Fiber-Based Biosensor

    Directory of Open Access Journals (Sweden)

    Jui-Teng Lin

    2012-01-01

    Full Text Available This paper presents a normalized transmitted signal (NTS of a fiber-based sensor using gold nanorods as the plasmon excitation medium of the evanescent wave. The NTS and the refractive index (RI sensitivity is calculated as a function of the gold aspect ratio (R, the RI of the sensing medium, and a scaling parameter given by the ratio of the fiber length and its diameter. Finally, the optimal value of gold aspect ratio is calculated to be R = (3.0–4.0 for maximum figure of merits (FOMs defined by the ratio of the refractive index sensitivity and the full width at half maximum. The scaling laws and the FOM presented in this paper may serve as the guidelines for optimal designs in fiber-based nanosensors.

  20. Strength of single-pole utility structures

    Science.gov (United States)

    Ronald W. Wolfe

    2006-01-01

    This section presents three basic methods for deriving and documenting Rn as an LTL value along with the coefficient of variation (COVR) for single-pole structures. These include the following: 1. An empirical analysis based primarily on tests of full-sized poles. 2. A theoretical analysis of mechanics-based models used in...

  1. Poling of Planar Silica Waveguides

    DEFF Research Database (Denmark)

    Arentoft, Jesper; Kristensen, Martin; Jensen, Jesper Bo

    1999-01-01

    UV-written planar silica waveguides are poled using two different poling techniques, thermal poling and UV-poling. Thermal poling induces an electro-optic coefficient of 0.067 pm/V. We also demonstrate simultaneous UV-writing and UV-poling. The induced electro-optic effect shows a linear dependence...

  2. Model independent analysis of gluonic pole matrix elements and universality of transverse-momentum-dependent fragmentation functions

    NARCIS (Netherlands)

    Gamberg, L. P.; Mukherjee, A.B.; Mulders, P.J.G.

    2011-01-01

    Gluonic pole matrix elements explain the appearance of single spin asymmetries (SSA) in high-energy scattering processes. They involve a combination of operators which are odd under time reversal (T-odd). Such matrix elements appear in principle both for parton distribution functions and parton

  3. Investigation of anchor nut loosening in high-mast light poles using field monitoring and finite element analysis.

    Science.gov (United States)

    2014-09-01

    High mast lighting poles (HMLPs) are cost effective structures for lighting highways and intersections. They are 100 to 250 feet (30m to 76m) tall, and can hold a variety of lamp configurations. They are : commonly used at highway interchanges becaus...

  4. Isolated upper pole access in percutaneous nephrolithotomy: a large-scale analysis from the CROES percutaneous nephrolithotomy global study

    NARCIS (Netherlands)

    Tefekli, Ahmet; Esen, Tarik; Olbert, Peter J.; Tolley, David; Nadler, Robert B.; Sun, Ying-Hao; Duvdevani, Mordechai; de La Rosette, Jean J. M. C. H.

    2013-01-01

    We analyzed the indications for and outcomes of percutaneous nephrolithotomy using upper pole access. Between 2007 and 2009 prospective data were collected by the Clinical Research Office of the Endourological Society (CROES) from consecutive patients at 96 centers globally. Data on 4,494 patients

  5. Theoretical analysis of quantum dot amplifiers with high saturation power and low noise figure

    DEFF Research Database (Denmark)

    Berg, Tommy Winther; Mørk, Jesper

    2002-01-01

    Semiconductor quantum dot amplifiers are predicted to exhibit superior characteristics such as high gain, and output power and low noise. The analysis provides criteria and design guidelines for the realization of high quality amplifiers.......Semiconductor quantum dot amplifiers are predicted to exhibit superior characteristics such as high gain, and output power and low noise. The analysis provides criteria and design guidelines for the realization of high quality amplifiers....

  6. EEG alpha peak frequency analysis during memorizing of figures in patients with mild cognitive impairment.

    Science.gov (United States)

    Schmidt, Magali Taimo; Anghinah, Renato; Basile, Luis Fernando; Forlenza, Oreste; Gattaz, Wagner Faride

    2009-06-01

    To investigate spectral analysis of electroencephalograms (EEG) for the alpha frequency band during rest and cognitive stimulation in healthy adults and individuals with mild cognitive impairment. We analyzed 56 EEGs from 28 patients, 7 men and 21 women, 12 of whom (40%) were controls, 16 patients with mild cognitive impairment (60%). Ages ranged from 61 to 83 years. All individuals were patients in the Psycho-geriatric Out-patients Clinic of LIM-27, of the Psychiatric Institute of the Clinicas Hospital of the Faculty of Medicine of the University of São Paulo, IPq-HCFMUSP, between 2004 and 2007. Each patient underwent two exams with an interval of at least six months between them. During the exam, performed after a period of wakefulness and rest, the patients memorized series of pictures. Analysis of spectral potential both at rest and during the memorizing task showed no statistical differences between baseline and final recordings. Spectral analysis of EEGs showed coherent results with the clinical stability of the patients evaluated but was unable to distinguish between the control group and patients with MCI. Future studies should include a larger sample and a longer follow up.

  7. On the Long-Term "Hesitation Waltz" Between the Earth's Figure and Rotation Axes

    Science.gov (United States)

    Couhert, A.; Mercier, F.; Bizouard, C.

    2017-12-01

    The principal figure axis of the Earth refers to its axis of maximum inertia. In the absence of external torques, the latter should closely coincide with the rotation pole, when averaged over many years. However, because of tidal and non-tidal mass redistributions within the Earth system, the rotational axis executes a circular motion around the figure axis essentially at seasonal time scales. In between, it is not clear what happens at decadal time spans and how well the two axes are aligned. The long record of accurate Satellite Laser Ranging (SLR) observations to Lageos makes possible to directly measure the long time displacement of the figure axis with respect to the crust, through the determination of the degree 2 order 1 geopotential coefficients for the 34-year period 1983-2017. On the other hand, the pole coordinate time series (mainly from GNSS and VLBI data) yield the motion of the rotation pole with even a greater accuracy. This study is focused on the analysis of the long-term behavior of the two time series, as well as the derivation of possible explanations for their discrepancies.

  8. Analysis of Barber-Pole Color and Speckle Noises Recorded 6 and a Half Hours before the Kobe Earthquake

    Science.gov (United States)

    Matsumoto, Hiroshi; Ikeya, Motoji; Yamanaka, Chihiro

    1998-11-01

    Barber-pole color shift and speckle noise in the images on the videotape of a TV program recorded six and a half hours before the Kobe earthquake havebeen analyzed and are considered to be due to electromagnetic (EM) noise of a few tens of mV/maround 217 MHz and pulsed noise with a width of about µs,respectively. Such images were reproduced by artificial means using amicrowave synthesizer and from air-gap discharges using a Van de Graaff generator. An EM model of a fault with piezo-compensating freecharges around quartz in granitic rocks gave pulsed EM waves having apulse width of 0.5 µs and height of 0.5 V/m at a point 50 kmfrom the fault.

  9. Eye-Tracking Analysis of the Figures of Anti-Smoking Health Promoting Periodical’s Illustrations1

    Directory of Open Access Journals (Sweden)

    Maródi Ágnes

    2015-08-01

    Full Text Available Nowadays new education technologies and e-communication devices give new measuring and assessing tools for researchers. Eye-tracking is one of these new methods in education. In our study we assessed 4 figures from the anti-smoking heath issues of National Institute for Health Development. In the study 22 students were included from a 7th grade class of a Kecskemét primary school. Our results show that students concentrate on the text-part of the figures except if the picture is frightening. However if the text and the picture are not both frightening enough, the message will not be transferred to young students.

  10. Figure out the Rhythm

    DEFF Research Database (Denmark)

    Knakkergaard, Martin

    Thinking in numbers, figures and systems plays a central part in our - at least scientific – understanding of musical matters. The kind of pre-order that the numbers - and also the systemic thinking - bring along seem to facilitate the access to and dealings with what we understand as fundamental...... to reflect. By means of a critical resume of an earlier analysis of rhythmical implications in Michael Jackson's "Give In To Me" this paper discusses these matters further and reflects upon arithmetic's influences and relevance for our understanding of music.......Thinking in numbers, figures and systems plays a central part in our - at least scientific – understanding of musical matters. The kind of pre-order that the numbers - and also the systemic thinking - bring along seem to facilitate the access to and dealings with what we understand as fundamental...... musical conditions. The number stands out as constituent of understanding in our views upon and dealings with frequency and relations between frequencies. The number as such becomes the lifeless agent of movement that without further notice is allowed to include - and systematise - the 'slow' frequencies...

  11. Impact of renal anatomy on shock wave lithotripsy outcomes for lower pole kidney stones: results of a prospective multifactorial analysis controlled by computerized tomography.

    Science.gov (United States)

    Torricelli, Fabio C M; Marchini, Giovanni S; Yamauchi, Fernando I; Danilovic, Alexandre; Vicentini, Fabio C; Srougi, Miguel; Monga, Manoj; Mazzucchi, Eduardo

    2015-06-01

    We evaluated which variables impact fragmentation and clearance of lower pole calculi after shock wave lithotripsy. We prospectively evaluated patients undergoing shock wave lithotripsy for a solitary 5 to 20 mm lower pole kidney stone between June 2012 and August 2014. Patient body mass index and abdominal waist circumference were recorded. One radiologist blinded to shock wave lithotripsy outcomes measured stone size, area and density, stone-to-skin distance, infundibular length, width and height, and infundibulopelvic angle based on baseline noncontrast computerized tomography. Fragmentation, success (defined as residual fragments less than 4 mm in asymptomatic patients) and the stone-free rate were evaluated by noncontrast computerized tomography 12 weeks postoperatively. Univariate and multivariate analysis was performed. A total of 100 patients were enrolled in the study. Mean stone size was 9.1 mm. Overall fragmentation, success and stone-free rates were 76%, 54% and 37%, respectively. On logistic regression body mass index (OR 1.27, 95% CI 1.11-1.49, p = 0.004) and stone density (OR 1.0026, 95% CI 1.0008-1.0046, p = 0.005) significantly impacted fragmentation. Stone size (OR 1.24, 95% CI 1.07-1.48, p = 0.039) and stone density (OR 1.0021, 95% CI 1.0007-1.0037, p = 0.012) impacted the success rate while stone size (OR 1.24, 95% CI 1.04-1.50, p = 0.029), stone density (OR 1.0015, 95% CI 1.0001-1.0032, p = 0.046) and infundibular length (OR 1.1035, 95% CI 1.015-1.217, p = 0.015) impacted the stone-free rate. The best outcomes were found in patients with a body mass index of 30 kg/m(2) or less, stones 10 mm or less and 900 HU or less, and an infundibular length of 25 mm or less. The coexistence of significant unfavorable variables led to a stone-free rate of less than 20%. Obese patients with higher than 10 mm density stones (greater than 900 HU) in the lower pole of the kidney with an infundibular length of greater than 25 mm should be discouraged from

  12. Fast Calculation Model and Theoretical Analysis of Rotor Unbalanced Magnetic Pull for Inter-Turn Short Circuit of Field Windings of Non-Salient Pole Generators

    Directory of Open Access Journals (Sweden)

    Guangtao Zhang

    2017-05-01

    Full Text Available Inter-turn short circuit of field windings (ISCFW may cause the field current of a generator to increase, output reactive power to decrease, and unit vibration to intensify, seriously affecting its safe and stable operation. Full integration of mechanical and electrical characteristics can improve the sensitivity of online monitoring, and detect the early embryonic period fault of small turns. This paper studies the calculations and variations of unbalanced magnetic pull (UMP, of which the excitation source of rotor vibration is the basis and key to online fault monitoring. In grid load operation, ISCFW are first calculated with the multi-loop method, so as to obtain the numerical solutions of the stator and the rotor currents during the fault. Next, the air-gap magnetic field of the ISCFW is analyzed according to the actual composition modes of the motor loops in the fault, so as to obtain the analytic expressions of the air-gap magnetic motive force (MMF and magnetic density. The UMP of the rotor is obtained by solving the integral of the Maxwell stress. The correctness of the electric quantity calculation is verified by the ISCFW experiment, conducted in a one pair-pole non-salient pole model machine. On this basis, comparing the simulation analysis with the calculation results of the model in this paper not only verifies the accuracy of the electromagnetic force calculation, but also proves that the latter has the advantages of a short time consumption and high efficiency. Finally, the influencing factors and variation law of UMP are analyzed by means of an analytic model. This develops a base for the online monitoring of ISCFW with the integration of mechanical and electrical information.

  13. Secondary electron emission yield on poled silica based thick films

    DEFF Research Database (Denmark)

    Braga, D.; Poumellec, B.; Cannas, V.

    2004-01-01

    injection, we pointed out an electric field 0.5 µm below the surface for our poling conditions and directed in the same direction as the external field applied during the poling process. Then, the dependence of on the injected dose of electrons allows us to deduce that the poling process disturbs the glass......Studies on the distribution of the electric field produced by a thermal poling process in a layer of Ge-doped silica on silicon substrate, by using secondary electron emission yield (SEEY) measurements () are presented. Comparing 0 between poled and unpoled areas, the SEEY at the origin of electron...... structure strongly enough for leading to a weak conductivity. It is then easy to display the poled areas. We have also pointed out an effect of the electric properties of the glass on the measurements obtained with the Electron Probe for MicroAnalysis....

  14. Toward device applicable second order NLO polymer materials: definition of the chromophore figure of merit

    International Nuclear Information System (INIS)

    Rutkis, M; Jurgis, A; Kampars, V; Vembris, A; Tokmakovs, A; Kokars, V

    2007-01-01

    Maximal achieved second order non linear optical (NLO) efficiency of the PMMA based host - guest systems containing eight dimethylaminobenzylidene -1, 3 - indandione (DMABI) related chromophores have been analysed. Two contradicting sets of NLO chromophore figure of merit (FOM) equations were tested. One of them predicts that NLO efficiency of the poled polymer host -guest film is proportional to ground state dipole d 33 ∼ 1/μ g , another to d 33 ∼ 1/μ g . The best correlations for the maximal achieved nonlinearity were obtained with second set of FOM, especially if high ground state dipole (μ g > 7D) chromofores are included in analysis

  15. Student figures in friction

    DEFF Research Database (Denmark)

    Nielsen, Gritt B.

    , students' room for participation in their own learning, influenced by demands for efficiency, flexibility and student-centred education. The thesis recasts the anthropological endeavour as one of ‘figuration work'. That is, ‘frictional events' are explored as moments when conflicting figures...

  16. Wood pole overhead lines

    CERN Document Server

    Wareing, Brian

    2005-01-01

    This new book concentrates on the mechanical aspects of distribution wood pole lines, including live line working, environmental influences, climate change and international standards. Other topics include statutory requirements, safety, profiling, traditional and probabilistic design, weather loads, bare and covered conductors, different types of overhead systems, conductor choice, construction and maintenance. A section has also been devoted to the topic of lightning, which is one of the major sources of faults on overhead lines. The book focuses on the effects of this problem and the strate

  17. A Study on a Lightning-Surge Analysis Composite Model of a Reinforced Concrete Pole and a Grounding Electrode in Power Distribution Lines

    Science.gov (United States)

    Miyazaki, Teru; Okabe, Shigemitsu; Mori, Kenjirou; Aiba, Kiyoshi; Hirai, Takao; Yoshinaga, Jun; Sekioka, Shozo

    It has been well known for many years that grounding resistance has a current-dependent characteristic due to soil ionization. Moreover reinforced concrete poles should be treated as a kind of grounding electrode against lightning strokes. However, these characteristics were seldom taken into account for lightning-protection designs. If these characteristics are represented in EMTP models for lightning protection designs, the rationalization of the lightning protection designs for distribution lines is expected. In order to clarify transient behaviors of a system of a grounding electrode and a concrete pole, experiments were conducted with full-scale grounding systems. In this study, the paper described a composite model of a reinforced concrete pole and a grounding electrode for distribution lines and compared the calculated waveforms with measured waveforms of the experiments. The results show that it is necessary to take a current-dependent characteristic into account and treat concrete poles as a kind of grounding electrode.

  18. Figure S1 Figure S2

    Indian Academy of Sciences (India)

    WINTEC

    6.8. 7.0. 7.2. 7.4. 7.6. 7.8. 8.0. 8.2. 8.4. 8.6. 8.8 ppm. 0.0. 1.8. 9.7. 5.4. 6.9. 8.1. 9.0. 10.8. 3.2. 10.3. Figure S3. NMR titration of DAN-Ia acid with NDI at 30% MeOH in CDCl3. The numbers represent the mole ratios of the DAN-acid to the repeat unit.

  19. data for figures

    Data.gov (United States)

    U.S. Environmental Protection Agency — Figures 1-10 and Table 1. This dataset is associated with the following publication: Chang, S.Y., S. Arunachalam, A. Valencia, B. Naess, V. Isakov , M. Breen , T....

  20. Facts and Figures

    Science.gov (United States)

    ... Saves Lives Facts & Figures My Blood, Your Blood Blood Donation Types Did you know there is more than one type of blood donation? Learn more about blood donation types here. Blood Safety and Testing The blood supply ...

  1. Chemical characteristics and source analysis on ionic composition of rainwater collected in the Carpathians "Cold Pole," Ciuc basin, Eastern Carpathians, Romania.

    Science.gov (United States)

    Szép, Róbert; Mateescu, Elena; Nechifor, Aurelia Cristina; Keresztesi, Ágnes

    2017-12-01

    A study of precipitation chemistry was conducted for 11 years (01 January 2006-31 December 2016) in the Ciuc basin, Eastern Carpathians, Romania. The studied area is an enclosed basin, also called "the Carpathians cold pole." All collected samples were analyzed for major cations and anions. HCO 3 - concentrations were calculated based on the empirical relationship between pH and HCO 3 - . The multiannual arithmetic mean of pH values was found to be 6.57. The lowest and highest pH values were measured in 2009 and 2013, being 6.57% lower, respectively, 7.57% higher than the multiannual mean. Only 3.31% of the studied rainwater samples indicate acidic character. In descending order, the majority of the samples are as follows: NH 4 + >Ca 2+ >SO 4 2- >Cl - >HCO 3 - >NO 3 - >Na + >K + >Mg 2+ >NO 2 - >H + . Principal component analysis (PCA) showed the NH 4 + , Ca 2+ , and Mg 2+ contribution to the neutralization process and their sources. The anthropogenic origin of SO 4 2- was supported by the high non-sea-salt fraction (NSSF) (~ 91%). The results of this study suggest that rainwater chemistry is strongly influenced by local natural and anthropogenic sources (agricultural activities) rather than marine sources. The pollutants in rainwater samples were mainly derived from calcareous and dolomitic soil dust and specific local climatic conditions, long-range transport, local industry, and traffic sources.

  2. Characteristics Analysis and Comparison of High-Speed 4/2 and Hybrid 4/4 Poles Switched Reluctance Motor

    Directory of Open Access Journals (Sweden)

    Grace Firsta Lukman

    2018-01-01

    Full Text Available This paper presents a characteristics analysis and performance comparison of high-speed two-phase 4/2 and hybrid single-phase 4/4 switched reluctance motors (SRMs. Although the motors are advantageous as high-speed drives, both conventional structures have high torque ripple as a result of the presence of the torque dead zone. In this paper, solutions to the torque dead zone problem for each motor are discussed. For the 4/2 SRM, a wide-rotor stepper-type is adopted, while for the 4/4 SRM, the structure is changed to a hybrid by adding permanent magnets (PMs. Both motors have a non-uniform air gap to modify their inductance profile, which leads to the elimination of the torque dead zone. A finite-element method was used to analyze the characteristics of each motor. Then, the manufactured motors were tested through experiments, and lastly, their performance was compared.

  3. Simplified Analytic Approach of Pole-to-Pole Faults in MMC-HVDC for AC System Backup Protection Setting Calculation

    Directory of Open Access Journals (Sweden)

    Tongkun Lan

    2018-01-01

    Full Text Available AC (alternating current system backup protection setting calculation is an important basis for ensuring the safe operation of power grids. With the increasing integration of modular multilevel converter based high voltage direct current (MMC-HVDC into power grids, it has been a big challenge for the AC system backup protection setting calculation, as the MMC-HVDC lacks the fault self-clearance capability under pole-to-pole faults. This paper focused on the pole-to-pole faults analysis for the AC system backup protection setting calculation. The principles of pole-to-pole faults analysis were discussed first according to the standard of the AC system protection setting calculation. Then, the influence of fault resistance on the fault process was investigated. A simplified analytic approach of pole-to-pole faults in MMC-HVDC for the AC system backup protection setting calculation was proposed. In the proposed approach, the derived expressions of fundamental frequency current are applicable under arbitrary fault resistance. The accuracy of the proposed approach was demonstrated by PSCAD/EMTDC (Power Systems Computer-Aided Design/Electromagnetic Transients including DC simulations.

  4. Cluster Mass Calibration at High Redshift: HST Weak Lensing Analysis of 13 Distant Galaxy Clusters from the South Pole Telescope Sunyaev-Zel'dovich Survey

    Energy Technology Data Exchange (ETDEWEB)

    Schrabback, T.; et al.

    2016-11-11

    We present an HST/ACS weak gravitational lensing analysis of 13 massive high-redshift (z_median=0.88) galaxy clusters discovered in the South Pole Telescope (SPT) Sunyaev-Zel'dovich Survey. This study is part of a larger campaign that aims to robustly calibrate mass-observable scaling relations over a wide range in redshift to enable improved cosmological constraints from the SPT cluster sample. We introduce new strategies to ensure that systematics in the lensing analysis do not degrade constraints on cluster scaling relations significantly. First, we efficiently remove cluster members from the source sample by selecting very blue galaxies in V-I colour. Our estimate of the source redshift distribution is based on CANDELS data, where we carefully mimic the source selection criteria of the cluster fields. We apply a statistical correction for systematic photometric redshift errors as derived from Hubble Ultra Deep Field data and verified through spatial cross-correlations. We account for the impact of lensing magnification on the source redshift distribution, finding that this is particularly relevant for shallower surveys. Finally, we account for biases in the mass modelling caused by miscentring and uncertainties in the mass-concentration relation using simulations. In combination with temperature estimates from Chandra we constrain the normalisation of the mass-temperature scaling relation ln(E(z) M_500c/10^14 M_sun)=A+1.5 ln(kT/7.2keV) to A=1.81^{+0.24}_{-0.14}(stat.) +/- 0.09(sys.), consistent with self-similar redshift evolution when compared to lower redshift samples. Additionally, the lensing data constrain the average concentration of the clusters to c_200c=5.6^{+3.7}_{-1.8}.

  5. Cluster Mass Calibration at High Redshift: HST Weak Lensing Analysis of 13 Distant Galaxy Clusters from the South Pole Telescope Sunyaev-Zel’dovich Survey

    Energy Technology Data Exchange (ETDEWEB)

    Schrabback, T.; Applegate, D.; Dietrich, J. P.; Hoekstra, H.; Bocquet, S.; Gonzalez, A. H.; der Linden, A. von; McDonald, M.; Morrison, C. B.; Raihan, S. F.; Allen, S. W.; Bayliss, M.; Benson, B. A.; Bleem, L. E.; Chiu, I.; Desai, S.; Foley, R. J.; de Haan, T.; High, F. W.; Hilbert, S.; Mantz, A. B.; Massey, R.; Mohr, J.; Reichardt, C. L.; Saro, A.; Simon, P.; Stern, C.; Stubbs, C. W.; Zenteno, A.

    2017-10-14

    We present an HST/Advanced Camera for Surveys (ACS) weak gravitational lensing analysis of 13 massive high-redshift (z(median) = 0.88) galaxy clusters discovered in the South Pole Telescope (SPT) Sunyaev-Zel'dovich Survey. This study is part of a larger campaign that aims to robustly calibrate mass-observable scaling relations over a wide range in redshift to enable improved cosmological constraints from the SPT cluster sample. We introduce new strategies to ensure that systematics in the lensing analysis do not degrade constraints on cluster scaling relations significantly. First, we efficiently remove cluster members from the source sample by selecting very blue galaxies in V - I colour. Our estimate of the source redshift distribution is based on Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS) data, where we carefully mimic the source selection criteria of the cluster fields. We apply a statistical correction for systematic photometric redshift errors as derived from Hubble Ultra Deep Field data and verified through spatial cross-correlations. We account for the impact of lensing magnification on the source redshift distribution, finding that this is particularly relevant for shallower surveys. Finally, we account for biases in the mass modelling caused by miscentring and uncertainties in the concentration-mass relation using simulations. In combination with temperature estimates from Chandra we constrain the normalization of the mass-temperature scaling relation ln (E(z) M-500c/10(14)M(circle dot)) = A + 1.5ln (kT/7.2 keV) to A = 1.81(-0.14)(+0.24)(stat.)+/- 0.09(sys.), consistent with self-similar redshift evolution when compared to lower redshift samples. Additionally, the lensing data constrain the average concentration of the clusters to c(200c) = 5.6(-1.8)(+3.7).

  6. The South Pole Telescope

    Energy Technology Data Exchange (ETDEWEB)

    Ruhl, J.E.; Ade, P.A.R.; Carlstrom, J.E.; Cho, H.M.; Crawford,T.; Dobbs, M.; Greer, C.H.; Halverson, N.W.; Holzapfel, W.L.; Lanting,T.M.; Lee, A.T.; Leitch, E.M.; Leong, J.; Lu, W.; Lueker, M.; Mehl, J.; Meyer, S.S.; Mohr, J.J.; Padin, S.; Plagge, T.; Pryke, C.; Runyan, M.C.; Schwan, D.; Sharp, M.K.; Spieler, H.; Staniszewski, Z.; Stark, A.A.

    2004-11-04

    A new 10 meter diameter telescope is being constructed for deployment at the NSF South Pole research station. The telescope is designed for conducting large-area millimeter and sub-millimeter wave surveys of faint, low contrast emission, as required to map primary and secondary anisotropies in the cosmic microwave background. To achieve the required sensitivity and resolution, the telescope design employs an off-axis primary with a 10 m diameter clear aperture. The full aperture and the associated optics will have a combined surface accuracy of better than 20 microns rms to allow precision operation in the submillimeter atmospheric windows. The telescope will be surrounded with a large reflecting ground screen to reduce sensitivity to thermal emission from the ground and local interference. The optics of the telescope will support a square degree field of view at 2mm wavelength and will feed a new 1000-element micro-lithographed planar bolometric array with superconducting transition-edge sensors and frequency-multiplexed readouts. The first key project will be to conduct a survey over 4000 degrees for galaxy clusters using the Sunyaev-Zeldovich Effect. This survey should find many thousands of clusters with a mass selection criteria that is remarkably uniform with redshift. Armed with redshifts obtained from optical and infrared follow-up observations, it is expected that the survey will enable significant constraints to be placed on the equation of state of the dark energy.

  7. Graphics of polar figure

    International Nuclear Information System (INIS)

    Macias B, L.R.

    1991-11-01

    The objective of this work, is that starting from a data file coming from a spectra that has been softened, and of the one that have been generated its coordinates to project it in stereographic form, to create the corresponding polar figure making use of the Cyber computer of the ININ by means of the GRAPHOS package. This work only requires a Beta, Fi and Intensity (I) enter data file. It starts of the existence of a softened spectra of which have been generated already with these data, making use of some language that in this case was FORTRAN for the Cyber computer, a program is generated supported in the Graphos package that allows starting of a reading of the Beta, Fi, I file, to generate the points in a stereographic projection and that it culminates with the graph of the corresponding polar figure. The program will request the pertinent information that is wanted to capture in the polar figure just as: date, name of the enter file, indexes of the polar figure, number of levels, radio of the stereographic projection (cms.), crystalline system to which belongs the sample, name the neuter graph file by create and to add the own general data. (Author)

  8. Clouds Over the North Pole

    Science.gov (United States)

    2004-01-01

    [figure removed for brevity, see original site] Released 29 June 2004 The atmosphere of Mars is a dynamic system. Water-ice clouds, fog, and hazes can make imaging the surface from space difficult. Dust storms can grow from local disturbances to global sizes, through which imaging is impossible. Seasonal temperature changes are the usual drivers in cloud and dust storm development and growth. Eons of atmospheric dust storm activity has left its mark on the surface of Mars. Dust carried aloft by the wind has settled out on every available surface; sand dunes have been created and moved by centuries of wind; and the effect of continual sand-blasting has modified many regions of Mars, creating yardangs and other unusual surface forms. Like yesterday's image, the linear 'ripples' are water-ice clouds. As spring is deepening at the North Pole these clouds are becoming more prevalent. Image information: VIS instrument. Latitude 68.9, Longitude 135.5 East (224.5 West). 38 meter/pixel resolution. Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time. NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are

  9. Yucca Mountain transportation routes: Preliminary characterization and risk analysis; Volume 2, Figures [and] Volume 3, Technical Appendices

    Energy Technology Data Exchange (ETDEWEB)

    Souleyrette, R.R. II; Sathisan, S.K.; di Bartolo, R. [Nevada Univ., Las Vegas, NV (United States). Transportation Research Center

    1991-05-31

    This report presents appendices related to the preliminary assessment and risk analysis for high-level radioactive waste transportation routes to the proposed Yucca Mountain Project repository. Information includes data on population density, traffic volume, ecologically sensitive areas, and accident history.

  10. Glass Waveguides for Periodic Poling

    DEFF Research Database (Denmark)

    Fage-Pedersen, Jacob; Jacobsen, Rune Shim; Kristensen, Martin

    2005-01-01

    Planar silica-based waveguide devices have been developed for second-harmonic generation by poling with periodic electrodes. We show that detrimental charge transport can occur along interfaces, but with proper choice of fabrication, high-quality devices are obtained.......Planar silica-based waveguide devices have been developed for second-harmonic generation by poling with periodic electrodes. We show that detrimental charge transport can occur along interfaces, but with proper choice of fabrication, high-quality devices are obtained....

  11. Study on Pole Arrangement of the CEDM Coils

    International Nuclear Information System (INIS)

    Park, Jin Seok; Lee, Myoung Goo; Kim, Hyun Min; Cho, Yeon Ho; Choi, Taek Sang

    2013-01-01

    The coil stack assembly is important for reliable operation of the CEDM, there have been efforts to improve the design by optimizing the design parameters such as dimensions and winding turns. However, magnetic forces of the CEDM can also change by different pole arrangement even if their design parameters are the same. Since the latch coil and lift coil are installed connected to each other, they produce magnetically coupled field when they are energized at the same time. This coupling field can affect the magnetic force of the CEDM significantly. In this paper, coil pole arrangement effects are studied. Electro-magnetic analysis is performed for the different pole arrangements of the CEDM coils to calculate the magnetic forces. Pole arrangement effects on magnetic forces were studied by static analysis of the CEDM magnetic field. Magnetic forces were calculated and compared for the two different pole arrangements of the coils. The results show that the magnetic poles of the lift coil and latch coil shall be arranged to have the same magnetic pole direction to achieve higher magnetic force

  12. Statistical Analysis of the Figure of Merit of a Two-Level Thermoelectric System: A Random Matrix Approach

    KAUST Repository

    Abbout, Adel

    2016-08-05

    Using the tools of random matrix theory we develop a statistical analysis of the transport properties of thermoelectric low-dimensional systems made of two electron reservoirs set at different temperatures and chemical potentials, and connected through a low-density-of-states two-level quantum dot that acts as a conducting chaotic cavity. Our exact treatment of the chaotic behavior in such devices lies on the scattering matrix formalism and yields analytical expressions for the joint probability distribution functions of the Seebeck coefficient and the transmission profile, as well as the marginal distributions, at arbitrary Fermi energy. The scattering matrices belong to circular ensembles which we sample to numerically compute the transmission function, the Seebeck coefficient, and their relationship. The exact transport coefficients probability distributions are found to be highly non-Gaussian for small numbers of conduction modes, and the analytical and numerical results are in excellent agreement. The system performance is also studied, and we find that the optimum performance is obtained for half-transparent quantum dots; further, this optimum may be enhanced for systems with few conduction modes.

  13. Facts and figures

    International Nuclear Information System (INIS)

    1987-01-01

    Whereas most of the data are, naturally, about oil, a few figures concern nuclear energy. There is in Part 1 a flow chart of worldwide primary energy consumption by type, from 1974 to 1986, where nuclear energy consumption can be seen in relation to oil, gas, coal and hydro. The same is also given for the regions of the South. In section 3/18 the numbers of nuclear plants in construction and operation are listed separately for developing countries, centrally planned economies and industrialized countries, for 1986. (qui)

  14. Figures of transversality

    DEFF Research Database (Denmark)

    Gammeltoft, Tine

    2008-01-01

    In this article, I explore how prenatal screening is imbricated within state agendas, aspirations, and imaginings in contemporary Vietnam. In an effort to develop new ethnographic tropes for understanding the formation called "the state," I argue for a phenomenological take that emphasizes its...... affective and embodied aspects. Seeing the anomalous fetus as a "figure of transversality," as a critical focus for powerful imaginings and desires, I show how state–society relations in Vietnam are suffused by visceral affectivity and moral engagement. In the realm of reproduction, intense sentiments...... of anxiety, dread, desire, ambition, and hope tie together the state and its citizens, animating individual aspirations as well as national population policies....

  15. Automatic figure ranking and user interfacing for intelligent figure search.

    Directory of Open Access Journals (Sweden)

    Hong Yu

    2010-10-01

    Full Text Available Figures are important experimental results that are typically reported in full-text bioscience articles. Bioscience researchers need to access figures to validate research facts and to formulate or to test novel research hypotheses. On the other hand, the sheer volume of bioscience literature has made it difficult to access figures. Therefore, we are developing an intelligent figure search engine (http://figuresearch.askhermes.org. Existing research in figure search treats each figure equally, but we introduce a novel concept of "figure ranking": figures appearing in a full-text biomedical article can be ranked by their contribution to the knowledge discovery.We empirically validated the hypothesis of figure ranking with over 100 bioscience researchers, and then developed unsupervised natural language processing (NLP approaches to automatically rank figures. Evaluating on a collection of 202 full-text articles in which authors have ranked the figures based on importance, our best system achieved a weighted error rate of 0.2, which is significantly better than several other baseline systems we explored. We further explored a user interfacing application in which we built novel user interfaces (UIs incorporating figure ranking, allowing bioscience researchers to efficiently access important figures. Our evaluation results show that 92% of the bioscience researchers prefer as the top two choices the user interfaces in which the most important figures are enlarged. With our automatic figure ranking NLP system, bioscience researchers preferred the UIs in which the most important figures were predicted by our NLP system than the UIs in which the most important figures were randomly assigned. In addition, our results show that there was no statistical difference in bioscience researchers' preference in the UIs generated by automatic figure ranking and UIs by human ranking annotation.The evaluation results conclude that automatic figure ranking and user

  16. Automatic figure ranking and user interfacing for intelligent figure search.

    Science.gov (United States)

    Yu, Hong; Liu, Feifan; Ramesh, Balaji Polepalli

    2010-10-07

    Figures are important experimental results that are typically reported in full-text bioscience articles. Bioscience researchers need to access figures to validate research facts and to formulate or to test novel research hypotheses. On the other hand, the sheer volume of bioscience literature has made it difficult to access figures. Therefore, we are developing an intelligent figure search engine (http://figuresearch.askhermes.org). Existing research in figure search treats each figure equally, but we introduce a novel concept of "figure ranking": figures appearing in a full-text biomedical article can be ranked by their contribution to the knowledge discovery. We empirically validated the hypothesis of figure ranking with over 100 bioscience researchers, and then developed unsupervised natural language processing (NLP) approaches to automatically rank figures. Evaluating on a collection of 202 full-text articles in which authors have ranked the figures based on importance, our best system achieved a weighted error rate of 0.2, which is significantly better than several other baseline systems we explored. We further explored a user interfacing application in which we built novel user interfaces (UIs) incorporating figure ranking, allowing bioscience researchers to efficiently access important figures. Our evaluation results show that 92% of the bioscience researchers prefer as the top two choices the user interfaces in which the most important figures are enlarged. With our automatic figure ranking NLP system, bioscience researchers preferred the UIs in which the most important figures were predicted by our NLP system than the UIs in which the most important figures were randomly assigned. In addition, our results show that there was no statistical difference in bioscience researchers' preference in the UIs generated by automatic figure ranking and UIs by human ranking annotation. The evaluation results conclude that automatic figure ranking and user interfacing as

  17. Preliminary figures for 1991

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    Neste Corporation's net sales during 1991 totalled USD 12.6 billion, an increase of 11 % over the figure for 1990. The largest growth in net sales took place in Neste Oil's trading activities and sales of in-house-produced crude oil. In the chemicals sector. particular growth was recorded in resins production. Gas, Shipping and Exploration and Production performed slightly better than during 1990. Oil's performance remained satisfactory. The performance of Chemicals, however, fell back considerably, primarily, as a result of the worldwide drop in prices in the petrochemicals and plastics industries. As a result, the Corporation's overall result was substantially below the good level recorded in 1990. The Corporation's operating margin totalled USD 650 million

  18. Glass Waveguides for Periodic Poling

    DEFF Research Database (Denmark)

    Fage-Pedersen, Jacob; Jacobsen, Rune Shim; Kristensen, Martin

    2005-01-01

    Planar silica-based waveguide devices have been developed for second-harmonic generation by poling with periodic electrodes. We show that detrimental charge transport can occur along interfaces, but with proper choice of fabrication, high-quality devices are obtained....

  19. Figures of Association and Sound in some Nigerian Proverbs ...

    African Journals Online (AJOL)

    Nekky Umera

    In this paper, our aim is to examine some figures of speech in Ondo proverbs. However, the main thrust of this paper is on figures of association and figures of sound. A follow up paper will examine the other poetic devices that have not been discussed here. Before we go into the analysis of this first part, we shall give a brief ...

  20. KIAI: FIGUR ELITE PESANTREN

    Directory of Open Access Journals (Sweden)

    Mohammad Takdir Ilahi

    2015-10-01

    Full Text Available In a pesantren (Islamic boarding school, kiai is an strategic element. Javanese kiai mainly believe that a pesantren is a small palace where he becomes the ultimate source of power and authority. Even though he lives in a rural village, he becomes a member of elite group in social, politic and economic sides in the society. Kiai who leads big pesantren has successfully enlarged their power in term of nation so kiai could be accepted in national elite. The position of kiai is higher among all pesantren elements. The degree as an Islamic scholar is exactly a sacred degree in pesantren culture and tradition. Without his figure, it is impossible for a pesantren to develop and survive. Kiai holds an ultimate position on educate the behavior and morality of the santri (students to be qualified and compatible Muslims generation. Kiai is not only a leader but he is also the man behind the leadership itself in supporting the progress of Islamic education institution for Muslims generations.

  1. 47 CFR 32.6411 - Poles expense.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Poles expense. 32.6411 Section 32.6411... FOR TELECOMMUNICATIONS COMPANIES Instructions for Expense Accounts § 32.6411 Poles expense. This account shall include expenses associated with poles. ...

  2. Pole counting and resonance classification

    International Nuclear Information System (INIS)

    Morgan, D.

    1992-01-01

    S-wave resonances occurring close to an inelastic threshold can be classified according to the number of nearby poles they possess. One then has a useful possibility of distinguishing dynamical alternatives by objective appeal to data. Making this quantitative entails developing suitable effective range expansions for various realizations of potential scattering. A key application is deciding the make-up of f 0 (976) (S*). (author)

  3. Electromagnetic Radial Forces in a Hybrid Eight-Stator-Pole, Six-Rotor-Pole Bearingless Switched-Reluctance Motor

    Science.gov (United States)

    Morrison, Carlos R.; Siebert, Mark W.; Ho, Eric J.

    2007-01-01

    Analysis and experimental measurement of the electromagnet force loads on the hybrid rotor in a novel bearingless switched-reluctance motor (BSRM) have been performed. A BSRM has the combined characteristics of a switched-reluctance motor and a magnetic bearing. The BSRM has an eight-pole stator and a six-pole hybrid rotor, which is composed of circular and scalloped lamination segments. The hybrid rotor is levitated using only one set of stator poles. A second set of stator poles imparts torque to the scalloped portion of the rotor, which is driven in a traditional switched reluctance manner by a processor. Analysis was done for nonrotating rotor poles that were oriented to achieve maximum and minimum radial force loads on the rotor. The objective is to assess whether simple one-dimensional magnetic circuit analysis is sufficient for preliminary evaluation of this machine, which may exhibit strong three-dimensional electromagnetic field behavior. Two magnetic circuit geometries, approximating the complex topology of the magnetic fields in and around the hybrid rotor, were employed in formulating the electromagnetic radial force equations. Reasonable agreement between the experimental results and the theoretical predictions was obtained with typical magnetic bearing derating factors applied to the predictions.

  4. Method and apparatus for assembling a permanent magnet pole assembly

    Science.gov (United States)

    Carl, Jr., Ralph James; Bagepalli, Bharat Sampathkumaran [Niskayuna, NY; Jansen, Patrick Lee [Scotia, NY; Dawson, Richard Nils [Voorheesville, NY; Qu, Ronghai [Clifton Park, NY; Avanesov, Mikhail Avramovich [Moscow, RU

    2009-08-11

    A pole assembly for a rotor, the pole assembly includes a permanent magnet pole including at least one permanent magnet block, a plurality of laminations including a pole cap mechanically coupled to the pole, and a plurality of laminations including a base plate mechanically coupled to the pole.

  5. Facts and figures in 2004

    International Nuclear Information System (INIS)

    Lavergne, R.; Meuric, L.; Scherrer, S.; Paquel, V.; Louati, S.; Thienard, H.

    2005-01-01

    This document gathers a series of articles dedicated to the situation of the energy sector in France at the end of 2004: -) the energy balance sheet, -) the trend concerning energy consumption since 1973, -) the energy bill, -) figures about electrical power, -) figures about natural gas, -) figures about solid fossil fuels, -) figures about oil, and -) figures about renewable energies. The important fact to note is that the energy bill has soared by 24.1% to reach 28.35 milliard euros which represents 1.75% of the gross national product (PIB). The evolution over the year 2004 of the factors that contribute to the level of the energy bill is: - the import-export energy quantity differential: +7.5%, - the import-export energy cost differential (in Usa dollar): +27.1%, and - the fall of the dollar: -9.1%. (A.C.)

  6. Minimizing Uncertainty in Cryogenic Surface Figure Measurement

    Science.gov (United States)

    Blake, Peter; Mink, Ronald G.; Chambers, John; Robinson, F. David; Content, David; Davila, Pamela

    2005-01-01

    A new facility at the Goddard Space Flight Center is designed to measure with unusual accuracy the surface figure of mirrors at cryogenic temperatures down to 12 K. The facility is currently configured for spherical mirrors with a radius of curvature (ROC) of 600 mm, and apertures of about 150 mm or less. The goals of the current experiment were to 1) Obtain the best possible estimate of test mirror surface figure, S(x,y) at 87 K and 20 K; 2) Obtain the best estimate of the cryo-change, Delta (x,y): the change in surface figure between room temperature and the two cryo-temperatures; and 3) Determine the uncertainty of these measurements, using the definitions and guidelines of the ISO Guide to the Expression of Uncertainty in Measurement. A silicon mirror was tested, and the cry-change from room temperature to 20K was found to be 3.7 nm rms, with a standard uncertainty of 0.23 nm in the rms statistic. Both the cryo-change figure and the uncertainty are among the lowest such figures yet published. This report describes the facilities, experimental methods, and uncertainty analysis of the measurements.

  7. Challenges of Rover Navigation at the Lunar Poles

    Science.gov (United States)

    Nefian, Ara; Deans, Matt; Bouyssounouse, Xavier; Edwards, Larry; Dille, Michael; Fong, Terry; Colaprete, Tony; Miller, Scott; Vaughan, Ryan; Andrews, Dan; hide

    2015-01-01

    Observations from Lunar Prospector, LCROSS, Lunar Reconnaissance Orbiter (LRO), and other missions have contributed evidence that water and other volatiles exist at the lunar poles in permanently shadowed regions. Combining a surface rover and a volatile prospecting and analysis payload would enable the detection and characterization of volatiles in terms of nature, abundance, and distribution. This knowledge could have impact on planetary science, in-situ resource utilization, and human exploration of space. While Lunar equatorial regions of the Moon have been explored by manned (Apollo) and robotic missions (Lunokhod, Cheng'e), no surface mission has reached the lunar poles.

  8. A Critical Examination of Figure of Merit (FOM). Assessing the Goodness-of-Fit in Gamma/X-ray Peak Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Croft, S. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Favalli, Andrea [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Weaver, Brian Phillip [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Williams, Brian J. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Burr, Thomas Lee [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); International Atomic Energy Agency, Vienna (Austria); Henzlova, Daniela [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); McElroy, R. D. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2015-10-06

    In this paper we develop and investigate several criteria for assessing how well a proposed spectral form fits observed spectra. We consider the classical improved figure of merit (FOM) along with several modifications, as well as criteria motivated by Poisson regression from the statistical literature. We also develop a new FOM that is based on the statistical idea of the bootstrap. A spectral simulator has been developed to assess the performance of these different criteria under multiple data configurations.

  9. Cubic Invariant Spherical Surface Harmonics in Conjunction With Diffraction Strain Pole-Figures

    NARCIS (Netherlands)

    Brakman, C.M.

    1986-01-01

    Four kinds of cubic invariant spherical surface harmonics are introduced. It has been shown previously that these harmonics occur in the equations relating measured diffraction (line-shift) elastic strain and macro-stresses generating these strains for the case of textured cubic materials. As a

  10. Neutron pole figures compared with magnetic preferred orientations of different rock types

    Czech Academy of Sciences Publication Activity Database

    Hansen, A.; Chadima, Martin; Cifelli, F.; Brokmeier, H-G.; Siemes, H.

    2004-01-01

    Roč. 350, 1/3 (2004), s. 120-122 ISSN 0921-4526 Institutional research plan: CEZ:AV0Z3013912 Keywords : crystalographic texture * magnetic anisotropy * rock s Subject RIV: DB - Geology ; Mineralogy Impact factor: 0.679, year: 2004

  11. Alzheimer's Disease Facts and Figures

    Medline Plus

    Full Text Available ... pocket spending. Take action. Become an advocate SPECIAL REPORT — ALZHEIMER'S DISEASE: THE NEXT FRONTIER In the history ... State The 2017 Alzheimer's Disease Facts and Figures report contains data on the impact of this disease ...

  12. Alzheimer's Disease Facts and Figures

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    Full Text Available ... Facts and Figures report contains data on the impact of this disease in every state across the nation. Click below to see the effect that Alzheimer's is having in your state. Read ...

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    Full Text Available ... home care. Take action. Become an advocate SPECIAL REPORT: FINANCIAL AND PERSONAL BENEFITS OF EARLY DIAGNOSIS Early ... State The 2018 Alzheimer's Disease Facts and Figures report contains data on the impact of this disease ...

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    Full Text Available ... THE 10 SIGNS Alzheimer's Disease Facts in Each State The 2018 Alzheimer's Disease Facts and Figures report ... on the impact of this disease in every state across the nation. Click below to see the ...

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    Full Text Available ... irrevocable disability occurs. LEARN ABOUT OUR COMMITMENT TO RESEARCH. Read More Alzheimer's Disease Facts in Each State The 2017 Alzheimer's Disease Facts and Figures report contains data on the impact of this disease in every ...

  16. Alzheimer's Disease Facts and Figures

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    Full Text Available ... same category as other chronic diseases, such as cardiovascular disease or diabetes, which can be ... Disease Facts and Figures report contains data on the impact of this disease ...

  17. Alzheimer's Disease Facts and Figures

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    Full Text Available ... Alzheimer's & Dementia >> Home Text size: A A A 2018 Alzheimer's Disease Facts and Figures Download the full ... all ages are living with Alzheimer's dementia in 2018. This number includes an estimated 5.5 million ...

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    Full Text Available ... Alzheimer's >> Home Text size: A A A 2017 Alzheimer's Disease Facts and Figures Download the Full Report: ... twice as high. Invest in a world without Alzheimer's. Donate Caregivers In 2016, 15.9 million family ...

  19. R-X Modeling Figures

    Energy Technology Data Exchange (ETDEWEB)

    Goda, Joetta Marie [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Miller, Thomas [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Grogan, Brandon [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2016-10-26

    This document contains figures that will be included in an ORNL final report that details computational efforts to model an irradiation experiment performed on the Godiva IV critical assembly. This experiment was a collaboration between LANL and ORNL.

  20. Alzheimer's Disease Facts and Figures

    Medline Plus

    Full Text Available ... Alzheimer's >> Home Text size: A A A 2017 Alzheimer's Disease Facts and Figures Download the Full Report: Download ... spending. Take action. Become an advocate SPECIAL REPORT — ALZHEIMER'S DISEASE: THE NEXT FRONTIER In the history of medicine, ...

  1. Alzheimer's Disease Facts and Figures

    Medline Plus

    Full Text Available ... Dementia >> Home Text size: A A A 2018 Alzheimer's Disease Facts and Figures Download the full report: Download ... worried about memory loss? KNOW THE 10 SIGNS Alzheimer's Disease Facts in Each State The 2018 Alzheimer's Disease ...

  2. Alzheimer's Disease Facts and Figures

    Medline Plus

    Full Text Available ... Dementia >> Home Text size: A A A 2018 Alzheimer's Disease Facts and Figures Download the full report: ... twice as high. Invest in a world without Alzheimer's. Donate Caregivers Eighty-three percent of the help ...

  3. Alzheimer's Disease Facts and Figures

    Science.gov (United States)

    ... Dementia >> Home Text size: A A A 2018 Alzheimer's Disease Facts and Figures Download the full report: ... twice as high. Invest in a world without Alzheimer's. Donate Caregivers Eighty-three percent of the help ...

  4. Alzheimer's Disease Facts and Figures

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    Full Text Available ... RESEARCH. Read More Alzheimer's Disease Facts in Each State The 2017 Alzheimer's Disease Facts and Figures report ... on the impact of this disease in every state across the nation. Click below to see the ...

  5. Alzheimer's Disease Facts and Figures

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    Full Text Available ... Home Text size: A A A 2018 Alzheimer's Disease Facts and Figures Download the full report: Download ... about memory loss? KNOW THE 10 SIGNS Alzheimer's Disease Facts in Each State The 2018 Alzheimer's Disease ...

  6. "Paintings Fade Like Flowers": Pigment Analysis and Digital Reconstruction of a Faded Pink Lake Pigment in Vincent van Gogh's Undergrowth with Two Figures.

    Science.gov (United States)

    Fieberg, Jeffrey E; Knutås, Per; Hostettler, Kurt; Smith, Gregory D

    2017-05-01

    Color fading in Vincent van Gogh's Undergrowth with Two Figures was studied chemically to facilitate the creation of a digital reconstruction of fugitive colors . The painting contains a field of white, green, orange, and yellow flowers under a canopy of poplar trees with two central figures-a man and a woman, arms entwined. From Van Gogh's letters, however, it is known that he painted the picture with some pink flowers, which appear to have altered, presumably to white. Raman spectroscopy was applied to microsamples of paint to identify the faded pigment as geranium lake, which in this painting consists of the dye, eosin (2',4',5',7'-tetrabromofluorescein). For the first time, lead(II) sulfate has been specifically identified as the likely inorganic substrate for a geranium lake used by Van Gogh in the last months of his life. Microfocus X-ray fluorescence (MXRF) spectroscopy was subsequently used in situ to analyze the white flowers to identify bromine as a proxy for eosin, thus indicating an original pink coloration. Of the 387 white flowers analyzed, 37.7% contained measurable bromine and were, therefore, originally pink. Several cross-sections from these formerly pink areas were assessed using a combination of visual inspection and microcolorimetry to create a colored mask in Adobe Photoshop to digitally reconstruct a suggestion of the original appearance of the painting with regard to the faded flowers. Additionally, microfadeometry was undertaken for the first time on a painting cross-section sample to understand the actual fading kinetics of the underlying bright pink geranium lake used by Van Gogh. A combination of Raman microspectroscopy, MXRF, and scanning electron microscopy energy dispersive spectroscopy (SEM-EDS) were utilized in situ and on paint microsamples to identify the complete palette used to create Undergrowth with Two Figures.

  7. Figure

    Indian Academy of Sciences (India)

    45

    mBraun, 120G,. Germany) was used to assemble the Swagelok cells. Lithium metal (Aldrich, 99.9%) was used as the counter electrode and Teklon (Anatek, USA) as the separator. All the tests were performed using 1 M. LiPF6 dissolved in the ...

  8. Macro Fiber Piezocomposite Actuator Poling Study

    Science.gov (United States)

    Werlink, Rudy J.; Bryant, Robert G.; Manos, Dennis

    2002-01-01

    The performance and advantages of Piezocomposite Actuators are to provide a low cost, in-situ actuator/sensor that is flexible, low profile and high strain per volt performance in the same plane of poled voltage. This paper extends reported data for the performance of these Macrofiber Composite (MFC) Actuators to include 4 progressively narrower Intedigitized electrode configurations with several line widths and spacing ratios. Data is reported for max free strain, average strain per applied volt, poling (alignment of the electric dipoles of the PZT ceramic) voltage vs. strain and capacitance, time to poling voltage 95% saturation. The output strain per volt progressively increases as electrode spacing decreases, with saturation occurring at lower poling voltages. The narrowest spacing ratio becomes prone to voltage breakdown or short circuits limiting the spacing width with current fabrication methods. The capacitance generally increases with increasing poling voltage level but has high sensitivity to factors such as temperature, moisture and time from poling which limit its usefulness as a simple indicator. The total time of applied poling voltage to saturate or fully line up the dipoles in the piezoceramic was generally on the order of 5-20 seconds. Less sensitivity to poling due to the applied rate of voltage increase over a 25 to 500 volt/second rate range was observed.

  9. Planar glass devices for efficient periodic poling

    DEFF Research Database (Denmark)

    Fage-Pedersen, Jacob; Jacobsen, Rune Shim; Kristensen, Martin

    2005-01-01

    We demonstrate that frequency-converting devices of high quality can be realised with glass poling. The devices, made with silica-on-silicon technology, are poled with periodic, embedded electrodes, and used for second-harmonic generation. We obtain precise control of the quasi phase-matching wav......We demonstrate that frequency-converting devices of high quality can be realised with glass poling. The devices, made with silica-on-silicon technology, are poled with periodic, embedded electrodes, and used for second-harmonic generation. We obtain precise control of the quasi phase......-matching wavelength and bandwidth, and a normalised conversion efficiency of 1.4×10-3 %/W/cm2 which, to our knowledge, is the highest obtained so far with periodic glass poling....

  10. Forskerklummen: Figured Worlds of literacy

    DEFF Research Database (Denmark)

    Møller, Hanne

    2017-01-01

    Figured worlds”, altså forestillede verdener, er et teoretisk begreb, som i øjeblikket dukker op i flere og flere forskningssammenhænge. Det bliver anvendt på mange forskellige måder både inden for uddannelsesforskning og i forskning i literacy.......”Figured worlds”, altså forestillede verdener, er et teoretisk begreb, som i øjeblikket dukker op i flere og flere forskningssammenhænge. Det bliver anvendt på mange forskellige måder både inden for uddannelsesforskning og i forskning i literacy....

  11. Design and analysis of high gain and low noise figure CMOS low noise amplifier for Q-band nano-sensor application

    Science.gov (United States)

    Suganthi, K.; Malarvizhi, S.

    2018-03-01

    A high gain, low power, low Noise figure (NF) and wide band of milli-meter Wave (mmW) circuits design at 50 GHz are used for Radio Frequency (RF) front end. The fundamental necessity of a receiver front-end includes perfect output and input impedance matching and port-to-port isolation with high gain and low noise over the entire band of interest. In this paper, a design of Cascade-Cascode CMOS LNA circuit at 50 GHz for Q-band application is proposed. The design of Low noise amplifier at 50 GHz using Agilent ADS tool with microstrip lines which provides simplicity in fabrication and less chip area. The low off-leakage current Ioff can be maintained with high K-dielectrics CMOS structure. Nano-scale electronics can be achieved with increased robustness. The design has overall gain of 11.091 dB and noise figure of 2.673 dB for the Q-band of 48.3 GHz to 51.3 GHz. Impedance matching is done by T matching network and the obtained input and output reflection coefficients are S11 = packaging technology, the protection and reliability also can be achieved with the electronic packaging. The reverse transmission coefficient S21 is less than -21 dB has shown that LNA has better isolation between input and output, Stability factor greater than 1 and Power is also optimized in this design. Layout is designed, power gain of 4.6 dB is achieved and area is optimized which is nearly equal to 502 740 μm2. The observed results show that the proposed Cascade-Cascode LNA design can find its suitability in future milli-meter Wave Radar application.

  12. Metrópoles desgovernadas

    Directory of Open Access Journals (Sweden)

    Erminia Maricato

    2011-04-01

    Full Text Available Apesar de sua importância econômica, política, social, demográfica, cultural, territorial e ambiental, há, nas metrópoles brasileiras, uma significativa falta de governo, evidenciada pelas incipientes iniciativas de cooperação administrativa intermunicipal e federativa. Este artigo aborda as mudanças estruturais - no processo de urbanização/ metropolização - devidas à reestruturação produtiva do capitalismo global, e, na escala nacional, trata da mudança no marco institucional - jurídico/político - que passou de concentrador e centralizador, durante o regime militar, para descentralizador e esvaziado, após a Constituição de 1988. O recuo verificado nas políticas sociais durante os anos 1980 e 1990, notadamente em transporte, habitação e saneamento, além do desmonte dos organismos metropolitanos, conduziu nossas metrópoles a um destino de banalização das tragédias urbanas. Em que pese sua urgência, a questão metropolitana não sensibiliza nenhuma força política ou instituição que lhe atribua lugar de destaque na agenda nacional.Despite its economic, political, social, demographic, cultural, territorial and environmental importance, there is a significant lack of government in the brazilian metropolises, evidenced by the incipient initiatives of intermunicipal and federative administrative cooperation. This article analyses the structural changes - in the process of urbanization/metropolization - due to the productive restructuring of global capitalism, and, in a national scale, analyses the change in the institutional mark - legal/political - which passed from concentrator and centralizer, during the Military Regimen, to decentralized and emptied, after 1988 Constitution. The downturn verified in social policies during the years 1980 and 1990, notably in transport, housing and sanitation, besides the dismantling of the metropolitan agencies, has led our cities to the trivialization of urban tragedies. Despite

  13. Omnichannel Marketing. Facts & Figures. Denmark 2017

    DEFF Research Database (Denmark)

    Futtrup Kjær, Jan; Kjær Jacobsen, Christine; Bjerre Herdel, Stine

    This NBI Omnichannel Facts and Figures report highlights the central findings from the NBI Omnichannel capability benchmarking tool, based on data collected in 2015 and 2016. The insights shared here provide an understanding of the way companies and marketing departments are working to deliver on...... on - and adapt to - the challenges and opportunities related to the customer-centric, omnichannel experience. View this report as a data-freeze and analysis on the status of omnichannel in Denmark as of 2017....

  14. Figures and First Years: Examining first-year Calculus I student ability to incorporate figures into technical reports

    Science.gov (United States)

    Antonacci, Nathan; Rogers, Michael; Pfaff, Thomas

    This three-year study focused on first-year Calculus I students and their abilities to incorporate figures into technical reports. Students were handed guidelines as part of their Multidisciplinary Sustainability Education Module meant to aid them in crafting effective figures. Figure-specific questionnaires were added in the class to gain insight into the quantitative literacy skills students possessed both before starting their course and after its completion. Reviews of the figures in 78 technical reports written by 106 students showed repeated failure to refer to figures in discussion sections and use them in evidence-based arguments. Analysis of quantitative literacy skills revealed that the students could both read and interpret figures, suggesting that issues with literacy were not the main contributor to the sub-par graphs.

  15. Holography with a Landau pole

    Science.gov (United States)

    Faedo, Antón F.; Mateos, David; Pantelidou, Christiana; Tarrío, Javier

    2017-02-01

    Holography for UV-incomplete gauge theories is important but poorly understood. A paradigmatic example is d = 4, N=4 super Yang-Mills coupled to N f quark flavors, which possesses a Landau pole at a UV scale ΛLP. The dual gravity solution exhibits a UV singularity at a finite proper distance along the holographic direction. Despite this, holographic renormalization can be fully implemented via analytic continuation to an AdS solution. The presence of a UV cut-off manifests itself in several interesting ways. At energies E ≪ ΛLP no pathologies appear, as expected from effective field theory. In contrast, at scales E ≲ ΛLP the gravitational potential becomes repulsive, and at temperatures T ≲ ΛLP the specific heat becomes negative. Although we focus on N=4 super Yang-Mills with flavor, our qualitative results apply to a much more general class of theories, since they only depend on the fact that the metric near the UV singularity is a hyper-scaling violating metric with exponent θ > d - 1.

  16. Holography with a Landau pole

    Energy Technology Data Exchange (ETDEWEB)

    Faedo, Antón F. [Departament de Física Quántica i Astrofísica and Institut de Ciències del Cosmos (ICC), Universitat de Barcelona, Martí i Franquès 1, ES-08028, Barcelona (Spain); Mateos, David [Departament de Física Quántica i Astrofísica and Institut de Ciències del Cosmos (ICC), Universitat de Barcelona, Martí i Franquès 1, ES-08028, Barcelona (Spain); Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluís Companys 23, ES-08010, Barcelona (Spain); Pantelidou, Christiana [Departament de Física Quántica i Astrofísica and Institut de Ciències del Cosmos (ICC), Universitat de Barcelona, Martí i Franquès 1, ES-08028, Barcelona (Spain); Tarrío, Javier [Physique Théorique et Mathématique, Université Libre de Bruxelles (ULB), and International Solvay Institutes, Campus de la Plaine CP 231, B-1050, Brussels (Belgium)

    2017-02-08

    Holography for UV-incomplete gauge theories is important but poorly understood. A paradigmatic example is d=4, N=4 super Yang-Mills coupled to N{sub f} quark flavors, which possesses a Landau pole at a UV scale Λ{sub LP}. The dual gravity solution exhibits a UV singularity at a finite proper distance along the holographic direction. Despite this, holographic renormalization can be fully implemented via analytic continuation to an AdS solution. The presence of a UV cut-off manifests itself in several interesting ways. At energies E≪Λ{sub LP} no pathologies appear, as expected from effective field theory. In contrast, at scales E≲Λ{sub LP} the gravitational potential becomes repulsive, and at temperatures T≲Λ{sub LP} the specific heat becomes negative. Although we focus on N=4 super Yang-Mills with flavor, our qualitative results apply to a much more general class of theories, since they only depend on the fact that the metric near the UV singularity is a hyper-scaling violating metric with exponent θ>d−1.

  17. Geometric Modelling of Octagonal Lamp Poles

    Science.gov (United States)

    Chan, T. O.; Lichti, D. D.

    2014-06-01

    Lamp poles are one of the most abundant highway and community components in modern cities. Their supporting parts are primarily tapered octagonal cones specifically designed for wind resistance. The geometry and the positions of the lamp poles are important information for various applications. For example, they are important to monitoring deformation of aged lamp poles, maintaining an efficient highway GIS system, and also facilitating possible feature-based calibration of mobile LiDAR systems. In this paper, we present a novel geometric model for octagonal lamp poles. The model consists of seven parameters in which a rotation about the z-axis is included, and points are constrained by the trigonometric property of 2D octagons after applying the rotations. For the geometric fitting of the lamp pole point cloud captured by a terrestrial LiDAR, accurate initial parameter values are essential. They can be estimated by first fitting the points to a circular cone model and this is followed by some basic point cloud processing techniques. The model was verified by fitting both simulated and real data. The real data includes several lamp pole point clouds captured by: (1) Faro Focus 3D and (2) Velodyne HDL-32E. The fitting results using the proposed model are promising, and up to 2.9 mm improvement in fitting accuracy was realized for the real lamp pole point clouds compared to using the conventional circular cone model. The overall result suggests that the proposed model is appropriate and rigorous.

  18. Tree-loop duality relation beyond single poles

    International Nuclear Information System (INIS)

    Bierenbaum, Isabella; Buchta, Sebastian; Draggiotis, Petros; Malamos, Ioannis; Rodrigo, German

    2012-11-01

    We develop the Tree-Loop Duality Relation for two- and three-loop integrals with multiple identical propagators (multiple poles). This is the extension of the Duality Relation for single poles and multi-loop integrals derived in previous publications. We prove a generalization of the formula for single poles to multiple poles and we develop a strategy for dealing with higher-order pole integrals by reducing them to single pole integrals using Integration By Parts.

  19. Retorical figures in advertising language

    Directory of Open Access Journals (Sweden)

    Radenković-Šošić Bojana

    2012-01-01

    Full Text Available Promotional activities are very often based on advertising and diverse types of public relations. In order to attract consumers' attention and achieve communication goals set by the corporate strategy, advertisers frequently use rhetorical elements in advertising discourse. The advertisers try to convey a desired message and to communicate with the recipient of the message by using various rhetorical figures. It is argued that understanding the structure and function of rhetorical figures in advertising requires a "text- and reader-aware approach". The use of rhetorical figures in advertising has been overlooked in consumer research. This paper shows that the use of rhetorical elements in the advertising discourse is very frequent, but at the same time it is questioned if the function of the rhetorical figures is just a communication with the target market (which is a base of communication models and if the consequences of linguistic influences are much more serious. The complex nature of advertising language with various rhetorical figures (thropes and schemes do not just stimulate recipients to demonstrate a desirable behavior, but indirectly it constructs a concept of desirable lifestyle and it induces them to identify themselves with the explained model. Moreover, the analyzed corpus included advertising slogans of social responsible companies as well as advertising campaigns with elements of diverse ideologies. In the time of digitization and a rapid information flow, consumer's attention is less dedicated to the advertising messages. Therefore, it should be expected that in the future advertisers will have to adjust linguistic, audio and visual techniques to the unfocused message recipients.

  20. Exergetic analysis of the operation of a petrochemical pole cogeneration system; Analise exergetica da operacao de uma planta de cogeracao de um polo petroquimico

    Energy Technology Data Exchange (ETDEWEB)

    Torres, Ednildo A. [Bahia Univ., Salvador, BA (Brazil). Escola Politecnica]. E-mail: ednildo@ufba.br; Gallo, Waldyr L. R. [Universidade Estadual de Campinas, SP (Brazil). Faculdade de Engenharia Mecanica. Dept. de Energia]. E-mail: gallo@unicamp.br

    2000-07-01

    This work presents an exergy analysis for a petrochemical cogeneration system (the greater operating in Brazil). The system is described, the method employed to simulate the system is presented, and the exergy efficiencies are defined. The analysis presents the exergy efficiencies and irreversibility for each sub-system. The results obtained from real data were used to compare operation strategies which are not clear from energy balances. (author)

  1. 18-12 Salient-Pole structure Brushless dc Motor with an assisted dc Field coil: Design Optimization and Numerical Analysis on the Magnetic Field

    Directory of Open Access Journals (Sweden)

    Hassan Moradi CheshmehBeigi

    2015-12-01

    Full Text Available Abstract. This paper presents the design optimization and accurate electromagnetic field analysis of an 18-12 there phase Brushless dc motor (BLDCM by using a three-dimensional Finite-Element analysis. Proposed motor will provide a wide range of air-gap flux control by a dc assisted field winding which is replaced with the permanent magnet in the rotor structure. In proposed BLDCM a simple dc current control is used and no brushes or slip rings are required to perform this control. To achieve the required performance within a specified space envelope, the physical dimensions of the proposed configuration were optimized; subject to maximize the average output power. Proposed 18-12 BLDCM configuration has been compared with a 9-6 BLDCM configuration. To evaluate the motor performance, the numerical techniques have been utilized. In the numerical part, 3-D Finite Element (FE analysis has been carried out using a MagNet CAD package (Infolytica Corporation Ltd. for two type of BLDCM to confirm the accuracy and the efficacy of the proposed design procedure. The analysis results demonstrate the effectiveness of the proposed machine design methodology. Keywords: FE Analysis; Field analysis; Brushless Dc Motor ­­­

  2. Figurative Language on Maya Angelou selected Poetries

    OpenAIRE

    Risma Hayani

    2016-01-01

    This study aimed to find out the kinds of figurative language in the five selected poetries of Maya Angelou, the titles are: Alone, Caged Bird, Old Folks Laugh, Phenomenal Woman, Still I Rise. The focus of this study is figurative language which involves: Metaphor, Personification, Hyperbole, Simile, Metonymy, Synecdoche, Irony, Antithesis, Symbolism, and Paradox. Qualitative approach with design of content analysis was used in this study. The researcher acted as the main instrument since she...

  3. Generation of coordinates in PC for graphics of polar figure

    International Nuclear Information System (INIS)

    Macias B, L.R.

    1991-10-01

    The preferential orientation, not alone it exists in metals, but also in minerals or in general in crystalline materials, notwithstanding in the metals it can be transformed by means of those processes of having mechanical worked such as laminate, wrapping, etc. To the preferable orientation of the crystals is also known as texture and since the properties of the crystalline materials lens depend on the orientation that present its glasses, it is important to know its texture. The difficulty for to represent and to describe the grade of preferential orientation in textured materials take to F. Weber to adapt the stereo graphic projection of a monocrystal to a poles figure. Later on, its appeared but methods to obtain the polar figure, among them, that of reflection of L. G. Schultz, but again a technique appears it specifies for its obtaining. In all the cases, the methodology is the following one: a) It is obtained by means of the diffraction process, the correspondent spectra in digitized form. b) it is applied process of having softened mathematician of the spectrum. c) there are determined the fi coordinates, beta and intensity for graph nts of the polar figure. d) Its are graph the points generated in c obtaining the polar figures. The objective of this work, is leaving of a softened spectra, to generate the coordinated fi, beta and corresponding intensity to proceed to their graph and generation of the polar figure. In this specific work, the methodology of Philips is used that consists in making a sweeping in hairspring form with the radiation to detect in these points the execution of the Bragg law. (Author)

  4. Inferior patellar pole fragmentation in children: just a normal variant?

    Energy Technology Data Exchange (ETDEWEB)

    Kan, J.H.; Vogelius, Esben S.; Orth, Robert C.; Guillerman, R.P.; Jadhav, Siddharth P. [Texas Children' s Hospital, E.B. Singleton Pediatric Radiology, Houston, TX (United States)

    2015-06-15

    Fragmentary ossification of the inferior patella is often dismissed as a normal variant in children younger than 10 years of age. The purpose of this study was to determine whether fragmentary inferior patellar pole ossification is a normal variant or is associated with symptoms or signs of pathology using MRI and clinical exam findings as reference. A retrospective review was performed on 150 patients ages 5-10 years who underwent 164 knee radiography and MRI exams (45.1% male, mean age: 7.8 years). The presence or absence of inferior patellar pole fragmentation on radiography was correlated with the presence or absence of edema-like signal on MR images. Clinical notes were reviewed for the presence of symptoms or signs referable to the inferior patellar pole. These data were compared with a 1:1 age- and sex-matched control group without inferior pole fragmentation. Statistical analysis was performed using two-tailed t-tests. Forty of 164 (24.4%) knee radiographs showed fragmentary ossification of the inferior patella. Of these 40 knees, 62.5% (25/40) had edema-like signal of the inferior patellar bone marrow compared with 7.5% (3/40) of controls (P = 0.035). Patients with fragmentary ossification at the inferior patella had a significantly higher incidence of documented focal inferior patellar pain compared with controls (20% vs. 2.5%, P = 0.015). Inferior patellar pole fragmentation in children 5 to 10 years of age may be associated with localized symptoms and bone marrow edema-like signal and should not be routinely dismissed as a normal variant of ossification. (orig.)

  5. Third quarter 2005 sales figures

    International Nuclear Information System (INIS)

    2005-01-01

    With manufacturing facilities in over 40 countries and a sales network in over 100, AREVA offers customers technological solutions for nuclear power generation and electricity transmission and distribution. The group also provides interconnect systems to the telecommunications, computer and automotive markets. This document presents the sales figures of the group for the third quarter of 2005: sales revenues in the front end division, in the reactor and services division, in the back end division and in the transmission and distribution division

  6. On pole structure assignment in linear systems

    Czech Academy of Sciences Publication Activity Database

    Loiseau, J.-J.; Zagalak, Petr

    2009-01-01

    Roč. 82, č. 7 (2009), s. 1179-1192 ISSN 0020-7179 R&D Projects: GA ČR(CZ) GA102/07/1596 Institutional research plan: CEZ:AV0Z10750506 Keywords : linear systems * linear state feedback * pole structure assignment Subject RIV: BC - Control Systems Theory Impact factor: 1.124, year: 2009 http://library.utia.cas.cz/separaty/2009/AS/zagalak-on pole structure assignment in linear systems.pdf

  7. Semiclassical approach to Regge poles trajectories calculations for nonsingular potentials: Thomas-Fermi type

    International Nuclear Information System (INIS)

    Belov, S M; Avdonina, N B; Felfli, Z; Marletta, M; Msezane, A Z; Naboko, S N

    2004-01-01

    A simple semiclassical approach, based on the investigation of anti-Stokes line topology, is presented for calculating Regge poles for nonsingular (Thomas-Fermi type) potentials, namely potentials with singularities at the origin weaker than order -2. The anti-Stokes lines for Thomas-Fermi potentials have a more complicated structure than those of singular potentials and require careful application of complex analysis. The explicit solution of the Bohr-Sommerfeld quantization condition is used to obtain approximate Regge poles. We introduce and employ three hypotheses to obtain several terms of the Regge pole approximation

  8. STRESS FRACTURE PREVALENCE IN ELITE FIGURE SKATERS

    Directory of Open Access Journals (Sweden)

    Sanda Dubravcic-Simunjak

    2008-09-01

    Full Text Available Figure skating is a physically demanding sport that requires a unique combination of artistic ability, speed, agility, flexibility and power. During the last decades not only the competitive schedule has become tougher, but after introduction of the new judging system in 2003, also more emphasis is put on difficult technical elements, jumps, steps and spins (ISU Rules, 2006. More studies about possible increasing prevalence of stress fractures in figure skaters and contributing factors are lacking (Dubravcic-Simunjak et al., 2003; Moran, 2000; Pecina et al., 1990. Therefore the aim of this study was to obtain data about the current stress fracture cumulative risk among elite junior and senior figure skaters, as well as possible factors that may contribute to stress fracture incidence. An anonymous questionnaire, divided into 5 sections, inquired about the prevalence of stress fracture were mailed and distributed to all 62 International Skating Union (ISU members by the ISU headquarters in Lausanne, Switzerland. The guidelines of the Helsinki declaration 2004 were followed. From the 644 skaters who received the questionnaire, 412 completed ones were returned from 110 female juniors (78 single skaters, 12 pair skaters and 20 ice dancers and 135 female seniors (97 single skaters, 16 pair skaters and 22 ice dancers and from 79 male juniors (47 single skaters, 12 pair skaters and 20 ice dancers and 88 male seniors (50 single skaters, 16 pair skaters and 22 ice dancers, coming from different ISU members. The response rate was 62% in females and 67% in males. The median age for female skaters was 16 years and for males 18 years (range 12-25 years. All participants started to skate between 3 and 6 years of age and started to compete in national and international competitions when they were between 5 and 7 years old. At the time of this analysis, they had been skating between 9 and 20 years.In females 41 (16.7%, and in males 25 (13.8% figure skaters

  9. The potential of wood-based composite poles

    Science.gov (United States)

    Todd F. Shupe; Cheng Piao; Chung Y. Hse

    2009-01-01

    Wood-based composite utility poles are receiving increasing attention in the North American pole market. This interest is being driven by many increasing factors such as increasing: (1) disposal costs of solid wood poles, (2) liability and environmental concerns with traditional means of disposal of solid wood poles, (3) cost and concerns of long-term...

  10. Mechanical properties of small-scale wood laminated composite poles

    Science.gov (United States)

    Cheng Piao; Todd F. Shupe; Chung Y. Hse

    2004-01-01

    Power companies in the United States consume millions of solid wood poles every year. These poles are from high-valued trees that are becoming more expensive and less available. wood laminated composite poles (LCP) are a novel alternative to solid wood poles. LCP consists of trapezoid wood strips that are bonded by a synthetic resin. The wood strips can be made from...

  11. π π scattering by pole extrapolation methods

    International Nuclear Information System (INIS)

    Lott, F.W. III.

    1977-01-01

    A 25-inch hydrogen bubble chamber was used at the Lawrence Berkeley Laboratory Bevatron to produce 300,000 pictures of π + p interactions at an incident momentum of the π + of 2.67 GeV/c. The 2-prong events were processed using the FSD and the FOG-CLOUDY-FAIR data reduction system. Events of the nature π + p → π + pπ 0 and π + p → π + π + n with values of momentum transfer to the proton of -t less than or equal to 0.238 GeV 2 were selected. These events were used to extrapolate to the pion pole (t = m/sub π/ 2 ) in order to investigate the π π interaction with isospins of both T = 1 and T = 2. Two methods were used to do the extrapolation: the original Chew-Low method developed in 1959 and the Durr-Pilkuhn method developed in 1965 which takes into account centrifugal barrier penetration factors. At first it seemed that, while the Durr-Pilkuhn method gave better values for the total π π cross section, the Chew-Low method gave better values for the angular distribution. Further analysis, however, showed that if the requirement of total OPE (one-pion-exchange) were dropped, then the Durr-Pilkuhn method gave more reasonable values of the angular distribution as well as for the total π π cross section

  12. Les figures multiples du maire.

    Directory of Open Access Journals (Sweden)

    Olivier Lebraud

    2004-06-01

    Full Text Available Alors même que l’ensemble du personnel gouvernemental et parlementaire est sujet à une relative désaffection de la part des citoyens, les maires français jouissent, on le sait, d’une popularité qui fait d’eux les figures centrales de la scène politique. Au-delà de la décentralisation, qui a souvent renforcé leur image de décideurs, ils ont su tirer parti de la dimension identitaire qui caractérise l’échelon communal pour devenir les acteurs indispensables de la vie locale. ...

  13. Figurative Language on Maya Angelou selected Poetries

    Directory of Open Access Journals (Sweden)

    Risma Hayani

    2016-12-01

    Full Text Available This study aimed to find out the kinds of figurative language in the five selected poetries of Maya Angelou, the titles are: Alone, Caged Bird, Old Folks Laugh, Phenomenal Woman, Still I Rise. The focus of this study is figurative language which involves: Metaphor, Personification, Hyperbole, Simile, Metonymy, Synecdoche, Irony, Antithesis, Symbolism, and Paradox. Qualitative approach with design of content analysis was used in this study. The researcher acted as the main instrument since she was the one who analyzed the figurative language. Moreover checklist was also used to support her data collection. The data was analyzed through three stages; 1. Data reduction, 2. Data representation, 3. Conclusion. The result of her study showed there were 40 sentences that containing figurative language in five selected poetries of Maya Angelou. They were; Metaphor (13 sentences, Personification (9 sentences, Hyperbole (1 sentence, Simile (8 sentences, Synecdoche (1 sentence, Antithesis (1 sentence, Symbolism (5 sentences, and Paradox (2 sentences. The researcher conclude, if the figurative language used by Angelou to compare, or even symbolize the sentences to bring the meaning come up with beautiful language. Mostly of her poetries told about her experience in the past that rooted to history of the discrimination of American-African.

  14. 2D Stabilised analytic signal method in DC pole-pole potential data ...

    Indian Academy of Sciences (India)

    R. Narasimhan (Krishtel eMaging) 1461 1996 Oct 15 13:05:22

    Using analytic signal method, interpretation of pole-pole secondary electric potentials due to 2D conductive/resistive prisms is presented. ... residual separation to separate out residual anom- alies, which are interpreted for geological .... terms, which are used for the semi-quantitative interpretation. 6.1 Computation of ...

  15. An unusual complication of ischemic injury to upper pole ureter during lower pole heminephroureterectomy

    Directory of Open Access Journals (Sweden)

    Katherine Victoria Hurst

    2013-01-01

    Full Text Available Lower pole heminephroureterectomy is a common paediatric urology procedure with few reported complications. We report a case of possible vascular ischemic injury to the normal remaining ureter following a lower pole heminephroureterectomy, probably due to both ureters sharing a common blood supply. Extra caution in such procedures is therefore warranted.

  16. Jupiter's interior and deep atmosphere: The initial pole-to-pole passes with the Juno spacecraft

    DEFF Research Database (Denmark)

    Bolton, S. J.; Adriani, Alberto; Adumitroaie, V.

    2017-01-01

    On 27 August 2016, the Juno spacecraft acquired science observations of Jupiter, passing less than 5000 kilometers above the equatorial cloud tops. Images of Jupiter's poles show a chaotic scene, unlike Saturn's poles. Microwave sounding reveals weather features at pressures deeper than 100 bars,...

  17. 2D Stabilised analytic signal method in DC pole-pole potential data ...

    Indian Academy of Sciences (India)

    R. Narasimhan (Krishtel eMaging) 1461 1996 Oct 15 13:05:22

    Using analytic signal method, interpretation of pole-pole secondary electric potentials due to 2D conductive/resistive prisms is presented. The estimated parameters are the location, lateral extent or width and depth to top surface of the prism. Forward modelling is attempted by 2D-Finite. Difference method. The proposed ...

  18. Hooke's figurations: a figural drawing attributed to Robert Hooke.

    Science.gov (United States)

    Hunter, Matthew C

    2010-09-20

    The experimental philosopher Robert Hooke (1635-1703) is known to have apprenticed to the leading painter Peter Lely on his first arrival in London in the late 1640s. Yet the relevance of Hooke's artistic training to his mature draughtsmanship and identity has remained unclear. Shedding light on that larger interpretive problem, this article argues for the attribution to Hooke of a figural drawing now in Tate Britain (T10678). This attributed drawing is especially interesting because it depicts human subjects and bears Hooke's name functioning as an artistic signature, both highly unusual features for his draughtsmanship. From evidence of how this drawing was collected and physically placed alongside images by leading artists in the early eighteenth century, I suggest how it can offer new insight into the reception of Hooke and his graphic work in the early Enlightenment.

  19. New magnet pole shape for isochronous cyclotrons

    International Nuclear Information System (INIS)

    Thorn, C.E.; Chasman, C.; Baltz, A.J.

    1981-01-01

    A new design has been developed for shaping pole tips to produce the radially increasing fields required for isochronous cyclotrons. The conventional solid hill poles are replaced by poles mounted over a small secondary gap which tapers radially from maximum at the magnet edge to zero near the center. Field measurements with a model magnet and calculations with the code TRIM show an increase in field at the edge of the magnet without the usual corresponding large increase in fringing, and a radial field shape more nearly field independent than for conventional hills. The flying hills have several advantages for variable energy multiparticle cyclotrons: (1) a large reduction in the power dissipated by isochronizing trim coils; (2) a more constant shape and magnitude flutter factor, eliminating flutter coils and increasing the operating range; and (3) a sharper fall-off of the fringe field, simplifying beam extraction

  20. THE SUSTAINABLE DEVELOPMENT OF THE BRASOV GROWTH POLE

    Directory of Open Access Journals (Sweden)

    Aida CATANA

    2016-12-01

    Full Text Available The demographic dynamics analysed in the context of the relationship between economic development and social inclusion presents an image of the sustainable development of a community as well as the manner how the financial resources have been used. With an allocation of 74.3 million euro in the programming period 2007-2013, the Brasov Growth Pole has pursued the contribution to the achievement of sustainable development since 2005 by the participation in the Agenda 21. The implementation of projects with European financing in areas such as transport, social and educational infrastructure or tourism have generated changes/demographic movements, which this paper proposes to present. The evolution of the stable population, its dynamics at the level of each locality that is part of the Brasov growth pole as well as the dynamics of the number of employees or the development of the unemployment rate are presented by the cluster analysis. The effects of the European financing obtained from Regional Operational Programme 2007-2013 are thus reflected in the sustainable development of the Brasov growth pole from the point of view of the dynamics of the population

  1. Seasonal Evolution of Titan's Stratosphere Near the Poles

    Science.gov (United States)

    Coustenis, A.; Jennings, D. E.; Achterberg, R. K.; Bampasidis, G.; Nixon, C. A.; Lavvas, P.; Cottini, V.; Flasar, F. M.

    2018-02-01

    In this Letter, we report the monitoring of seasonal evolution near Titan’s poles. We find Titan’s south pole to exhibit since 2010 a strong temperature decrease and a dramatic enhancement of several trace species such as complex hydrocarbons and nitriles (HC3N and C6H6 in particular) previously only observed at high northern latitudes. This results from the seasonal change on Titan going from winter (2002) to summer (2017) in the north and, at the same time, the onset of winter in the south pole. During this transition period atmospheric components with longer chemical lifetimes linger in the north, undergoing slow photochemical destruction, while those with shorter lifetimes decrease and reappear in the south. An opposite effect was expected in the north, but not observed with certainty until now. We present here an analysis of high-resolution nadir spectra acquired by Cassini/Cassini Composite Infrared Spectrometer in the past years and describe the temperature and composition variations near Titan’s poles. From 2013 until 2016, the northern polar region has shown a temperature increase of 10 K, while the south has shown a more significant decrease (up to 25 K) in a similar period of time. While the south polar region has been continuously enhanced since about 2012, the chemical content in the north is finally showing a clear depletion for most molecules only since 2015. This is indicative of a non-symmetrical response to the seasons in Titan’s stratosphere that can set constraints on photochemical and GCM models.

  2. REGIONAL DEVELOPMENT THROUGH GROWTH AND URBAN DEVELOPMENT POLES IN ROMANIA

    Directory of Open Access Journals (Sweden)

    Stefana VARVARI

    2015-09-01

    Full Text Available In 2008 the Ministry of Development, Public Works and Housing (now the Ministry of Regional Development and Public Administration prepared the growth poles policy for Romania, establishing seven growth poles to be financed through the Regional Operational Programme 2007-1013, under the Priority Axis no. 1. For 2007-2013 there were also established 11 urban development poles. At present the Ministry is discussing with the European Commission the new Regional Operational Programme 2014-2020 in which the main policy lines regarding integrated territorial development also take into consideration the improvement of the quality of life and the “appearance” of towns and strengthening their role in the region. The main urban agglomerations (county seats are seen as development engines of the regions. The authors analyze the results obtained and the problems that appeared at regional level in what concerns the projects financed under Axis 1 of the ROP 2007-2013 by answering two main questions: did they really had the estimated impact on the growth and urban development poles and on the regions? and was there really an integrated approach used? Based on the results obtained from the analysis of the previous programming period the authors try to recommend some improvements that could be taken into consideration for the development of the Integrated urban development plans and priority projects that are going to be financed by ESI funds under Axis 4 of the new ROP 2014-2020, recommendations that could be taken into consideration when preparing the Guidelines for applicants for this axis.

  3. Pole solutions for flame front propagation

    CERN Document Server

    Kupervasser, Oleg

    2015-01-01

    This book deals with solving mathematically the unsteady flame propagation equations. New original mathematical methods for solving complex non-linear equations and investigating their properties are presented. Pole solutions for flame front propagation are developed. Premixed flames and filtration combustion have remarkable properties: the complex nonlinear integro-differential equations for these problems have exact analytical solutions described by the motion of poles in a complex plane. Instead of complex equations, a finite set of ordinary differential equations is applied. These solutions help to investigate analytically and numerically properties of the flame front propagation equations.

  4. Fundamental pole parameters of the N(1470)

    CERN Document Server

    Lee, P S

    1973-01-01

    The position and residue of the S-matrix pole of the Delta (1236) have been shown to be unique and independent of the particular resonance formula used, thus resolving a discrepancy among phenomenological fits. Unlike the P/sub 33/ partial wave, the P/sub 11/ resonance is highly inelastic, very broad, and has a large background. This produces huge uncertainties in its mass and width, depending on the parametrization used. It is reported that the position of the N(1470) pole is uniquely determined, 1380-110i MeV, from fits to the CERN phase shifts. (10 refs).

  5. Analysis of Sunyaev-Zel'dovich effect mass-observable relations using South Pole Telescope observations of an X-ray selected sample of low-mass galaxy clusters and groups

    Energy Technology Data Exchange (ETDEWEB)

    Liu, J.; Mohr, J.; Saro, A.; Aird, K. A.; Ashby, M. L. N.; Bautz, M.; Bayliss, M.; Benson, B. A.; Bleem, L. E.; Bocquet, S.; Brodwin, M.; Carlstrom, J. E.; Chang, C. L.; Chiu, I.; Cho, H. M.; Clocchiatti, A.; Crawford, T. M.; Crites, A. T.; de Haan, T.; Desai, S.; Dietrich, J. P.; Dobbs, M. A.; Foley, R. J.; Gangkofner, D.; George, E. M.; Gladders, M. D.; Gonzalez, A. H.; Halverson, N. W.; Hennig, C.; Hlavacek-Larrondo, J.; Holder, G. P.; Holzapfel, W. L.; Hrubes, J. D.; Jones, C.; Keisler, R.; Lee, A. T.; Leitch, E. M.; Lueker, M.; Luong-Van, D.; McDonald, M.; McMahon, J. J.; Meyer, S. S.; Mocanu, L.; Murray, S. S.; Padin, S.; Pryke, C.; Reichardt, C. L.; Rest, A.; Ruel, J.; Ruhl, J. E.; Saliwanchik, B. R.; Sayre, J. T.; Schaffer, K. K.; Shirokoff, E.; Spieler, H. G.; Stalder, B.; Staniszewski, Z.; Stark, A. A.; Story, K.;  uhada, R.; Vanderlinde, K.; Vieira, J. D.; Vikhlinin, A.; Williamson, R.; Zahn, O.; Zenteno, A.

    2015-02-25

    We use microwave observations from the South Pole Telescope (SPT) to examine the Sunyaev–Zel'dovich effect (SZE) signatures of a sample of 46 X-ray selected groups and clusters drawn from ~6 deg2 of the XMM–Newton Blanco Cosmology Survey. These systems extend to redshift z = 1.02 and probe the SZE signal to the lowest X-ray luminosities (≥1042 erg s-1) yet; these sample characteristics make this analysis complementary to previous studies. We develop an analysis tool, using X-ray luminosity as a mass proxy, to extract selection-bias-corrected constraints on the SZE significance and Y_500 mass relations. The former is in good agreement with an extrapolation of the relation obtained from high-mass clusters. However, the latter, at low masses, while in good agreement with the extrapolation from the high-mass SPT clusters, is in tension at 2.8σ with the Planck constraints, indicating the low-mass systems exhibit lower SZE signatures in the SPT data. We also present an analysis of potential sources of contamination. For the radio galaxy point source population, we find 18 of our systems have 843 MHz Sydney University Molonglo Sky Survey sources within 2 arcmin of the X-ray centre, and three of these are also detected at significance >4 by SPT. Of these three, two are associated with the group brightest cluster galaxies, and the third is likely an unassociated quasar candidate. We examine the impact of these point sources on our SZE scaling relation analyses and find no evidence of biases. We also examine the impact of dusty galaxies using constraints from the 220 GHz data. The stacked sample provides 2.8σ significant evidence of dusty galaxy flux, which would correspond to an average underestimate of the SPT Y_500 signal that is (17 ± 9)per cent in this sample of low-mass systems. Finally, we explore the impact of future data from SPTpol and XMM-XXL, showing that it will lead to a factor of 4 to 5 tighter

  6. Detection of Street Light Poles in Road Scenes from Mobile LIDAR Mapping Data for its Applications

    Science.gov (United States)

    Talebi Nahr, S.; Saadatseresht, M.; Talebi, J.

    2017-09-01

    Identification of street light poles is very significant and crucial for intelligent transportation systems. Automatic detection and extraction of street light poles are a challenging task in road scenes. This is mainly because of complex road scenes. Nowadays mobile laser scanners have been used to acquire three-dimensional geospatial data of roadways over a large area at a normal driving speed. With respect to the high density of such data, new and beneficial algorithms are needed to extract objects from these data. In this article, our proposed algorithm for extraction of street light poles consists of five main steps: 1. Preprocessing, 2. Ground removal, 3. 3D connected components analysis, 4. Local geometric feature generation, 5. Extraction of street light poles using Bhattacharya distance metric. The proposed algorithm is tested on two rural roadways, called Area1 and Area2. Evaluation results for Area1 report 0.80, 0.72 and 0.62 for completeness, correctness and quality, respectively.

  7. Requirements for NuMA in maintenance and establishment of mammalian spindle poles.

    Science.gov (United States)

    Silk, Alain D; Holland, Andrew J; Cleveland, Don W

    2009-03-09

    Microtubules of the mitotic spindle in mammalian somatic cells are focused at spindle poles, a process thought to include direct capture by astral microtubules of kinetochores and/or noncentrosomally nucleated microtubule bundles. By construction and analysis of a conditional loss of mitotic function allele of the nuclear mitotic apparatus (NuMA) protein in mice and cultured primary cells, we demonstrate that NuMA is an essential mitotic component with distinct contributions to the establishment and maintenance of focused spindle poles. When mitotic NuMA function is disrupted, centrosomes provide initial focusing activity, but continued centrosome attachment to spindle fibers under tension is defective, and the maintenance of focused kinetochore fibers at spindle poles throughout mitosis is prevented. Without centrosomes and NuMA, initial establishment of spindle microtubule focusing completely fails. Thus, NuMA is a defining feature of the mammalian spindle pole and functions as an essential tether linking bulk microtubules of the spindle to centrosomes.

  8. Finding Figurative Language in "The Phantom Tollbooth."

    Science.gov (United States)

    Hinton, Lisa

    This lesson is an exploration of figurative language using the novel "The Phantom Tollbooth" and various Web resources. Students examine figurative language in the story and create a chart representing the literal and figurative meanings of words and phrases. During the four to eight 40-minute class sessions, middle school students will: read the…

  9. Spherical Harmonics Analysis of the ECMWF Global Wind Fields at the 10-Meter Height Level During 1985: A Collection of Figures Illustrating Results

    Science.gov (United States)

    Sanchez, Braulio V.; Nishihama, Masahiro

    1997-01-01

    Half-daily global wind speeds in the east-west (u) and north-south (v) directions at the 10-meter height level were obtained from the European Centre for Medium Range Weather Forecasts (ECMWF) data set of global analyses. The data set covered the period 1985 January to 1995 January. A spherical harmonic expansion to degree and order 50 was used to perform harmonic analysis of the east-west (u) and north-south (v) velocity field components. The resulting wind field is displayed, as well as the residual of the fit, at a particular time. The contribution of particular coefficients is shown. The time variability of the coefficients up to degree and order 3 is presented. Corresponding power spectrum plots are given. Time series analyses were applied also to the power associated with degrees 0-10; the results are included.

  10. Rotor pole refurbishment for hydrogenerators: insulation problems and solutions

    International Nuclear Information System (INIS)

    Reynolds, R.R.; Rux, L.

    2005-01-01

    Rotor poles for Unit 1 at Lower Granite Powerhouse were removed from the rotor and shipped to a repair facility for refurbishment. Upon inspection, it was found that all of the pole bodies exhibited a distinct bow, center to end, on the pole mounting surface. In some cases, the deflection was as much as 0.106 inch. Concerns were raised about how this condition might affect the ability to properly insulate and/or re-seat the poles. This paper presents details of the rotor pole and field winding evaluation, the problems encountered, and the solutions implemented to successfully refurbish the rotor poles and field winding. (author)

  11. Students Learn about Chinese Culture through the Folktale "Yeh-Shen": Emphasizing Figurative Language Interpretation

    Science.gov (United States)

    Palmer, Barbara C.; Sun, Lingzhi; Leclere, Judith T.

    2012-01-01

    This article will analyze the figurative language that reflects Chinese traditional society and culture in "Yeh-Shen." The authors will consider both the figures of speech and the figures of thought (to include symbolism) that provide insight into an understanding of the Chinese culture through a reading of "Yeh-Shen." This analysis can be used by…

  12. Recent advances in poled optical fibres

    DEFF Research Database (Denmark)

    Pruneri, V.; Margulis, W.; Myrén, N.

    2005-01-01

    A second-order nonlinearity can be induced in optical fibres through poling. We describe accomplishments of the EU project GLAMOROUS in making low-cost high performance electrooptic and nonlinear optical fibre- and waveguide-based components. In particular a comparison with more traditional...

  13. Quasiparticle pole strength in nuclear matter

    International Nuclear Information System (INIS)

    Poggioli, R.S.; Jackson, A.D.

    1975-01-01

    It is argued that single-particle-like behavior in nuclear matter is much less probable than Brueckner theory suggests. In particular, the quasiparticle pole strength is evaluated for nuclear matter and it is shown that, contrary to the spirit of Brueckner theory, low momentum states play a crucial role in determining the magnitude of z/sub k/sub F/. (auth)

  14. Kosovo : kannatlikkusele lootmine pole plaan / Chris Patten

    Index Scriptorium Estoniae

    Patten, Chris

    2007-01-01

    Autor leiab, et arvestades Kosovo elanike ülekaalukat soovi olla vaba Serbiast, riigist, mis üritas nad kõrvaldada, ning alternatiivi täielikku puudumist Belgradi poolt, pole rahvusvahelisel kogukonnal muud võimalust kui anda Kosovole iseseisvus

  15. Pole masses of quarks in dimensional reduction

    International Nuclear Information System (INIS)

    Avdeev, L.V.; Kalmykov, M.Yu.

    1997-01-01

    Pole masses of quarks in quantum chromodynamics are calculated to the two-loop order in the framework of the regularization by dimensional reduction. For the diagram with a light quark loop, the non-Euclidean asymptotic expansion is constructed with the external momentum on the mass shell of a heavy quark

  16. Third Pole Environment (TPE) -Latest Progress

    Science.gov (United States)

    Liu, Z.; Yao, T.; Zhang, F.; Yang, X.; Wang, W.; Ping, F.

    2014-12-01

    Centered on the Tibetan Plateau, the Third Pole region is a unique geographical unit, which represents one of the largest ice masses on the Earth. The region has great impacts on environmental changes in China, the Northern Hemisphere and the globe.It also demonstrates sensitive feedbacks to global changes and the impacts of anthropogenic activities in surrounding regions. Like the Arctic and Antarctica, the Third Pole region is an especially sensitive area that draws great attention from the scientific community. In 2009, with support from the Chinese Academy of Sciences and international organizations, the Third Pole Environment (TPE) program, led by Chinese scientists, was officially launched. The program focuses on the theme of "water-ice-air-ecosystem-human" interactions, with the aim to address the following scientific questions, such as the spatial and temporal characteristics of past environmental changes in the Third pole, the interactions between hydrosphere and cryosphere and hazard processes, the ecological systems' impacts on and response to environmental changes, and the impacts of anthropogenic activities on environmental changes in the region and adaptation strategies. The goal of the program is to reveal environmental change processes and mechanisms on the Third Pole and their influences on and responses to global changes, and thus to serve for enhancement of human adaptation to the changing environment and realization of human-nature harmony. Under the leadership of the co-chairs, and relying on Scientific Committee and the TPE office, the program has accomplished a number of scientific tasks since its inauguration. TPE has made tremendous progress in the research of glacier changes, interactions between the westerlies and monsoon, establishment of field stations, data sharing and education.

  17. Preliminary Analyses of Transmedia Adaptations of Pictorial Narratives and Aesthetic Pole Interpretations: Reflections on Theory

    Directory of Open Access Journals (Sweden)

    Yu-Chai Lai

    2015-10-01

    Full Text Available Transmedia narratives are a key topic of communication research. Transmedia adaptations occur when a narrator transposes an original work by using various media platforms. Considering pictorial turn, this study employed the intermediality of an animated work that was adapted from an award-winning picture book as an example to propose an analysis for theory building. After examining the literature on transmedia narratives, intermediality, and aesthetic communication, this study proposed analyses for the dimensions of transmedia adaptations of pictorial narratives and aesthetic pole interpretations. Focusing on the three layers of the artistic pole, aesthetic pole, and interactions and effects, this study cited the cases of award-winning picture books and adapted animated works as the basis for reflecting on aesthetic communication. The artistic pole of transmedia adaptation was used as an example of how a narrator employs intermediality by citing the pictures, plot, or art forms from an original work to reinvent structures and then adapts them according to intermediality. If the aesthetic pole views the adapted animated work after reading the picture book or forms an expectation of the adaptation because of intermediality, then when the audience watches the adapted animated work, their imagination could be stimulated by the intermediality (i.e., picture book graphics and scene depictions. For transmedia narrative interaction, the aesthetic pole must “fill blanks” or “negate” to continue to view the adaptation. For filling blanks, because of intermediality, the aesthetic pole must construct an “intracompositional intermediality” to connect with the visual and audio links of the same work or construct “extracompositional intermedialtiy” to associate the original work with the transmedia adaptation. For negation, when viewing the adaptation (i.e., presentation of picture book graphics, added music, or theme song, the aesthetic pole

  18. Fatigue failure and cracking in high mast poles.

    Science.gov (United States)

    2012-03-01

    This report presents the findings of a comprehensive research project to investigate the fatigue : cracking and failure of galvanized high mast illumination poles (HMIP). Ultrasonic inspection of : poles throughout the state has revealed the presence...

  19. Who's bigger? where historical figures really rank

    CERN Document Server

    Skiena, Steven

    2014-01-01

    Is Hitler bigger than Napoleon? Washington bigger than Lincoln? Picasso bigger than Einstein? Quantitative analysts are rapidly finding homes in social and cultural domains, from finance to politics. What about history? In this fascinating book, Steve Skiena and Charles Ward bring quantitative analysis to bear on ranking and comparing historical reputations. They evaluate each person by aggregating the traces of millions of opinions, just as Google ranks webpages. The book includes a technical discussion for readers interested in the details of the methods, but no mathematical or computational background is necessary to understand the rankings or conclusions. Along the way, the authors present the rankings of more than one thousand of history's most significant people in science, politics, entertainment, and all areas of human endeavor. Anyone interested in history or biography can see where their favorite figures place in the grand scheme of things.

  20. Economics of Red Pine Management for Utility Pole Timber

    Science.gov (United States)

    Gerald H. Grossman; Karen Potter-Witter

    1991-01-01

    Including utility poles in red pine management regimes leads to distinctly different management recommendations. Where utility pole markets exist, managing for poles will maximize net returns. To do so, plantations should be maintained above 110 ft2/ac, higher than usually recommended. In Michigan's northern lower peninsula, approximately...

  1. Theoretical modeling and experimental analyses of laminated wood composite poles

    Science.gov (United States)

    Cheng Piao; Todd F. Shupe; Vijaya Gopu; Chung Y. Hse

    2005-01-01

    Wood laminated composite poles consist of trapezoid-shaped wood strips bonded with synthetic resin. The thick-walled hollow poles had adequate strength and stiffness properties and were a promising substitute for solid wood poles. It was necessary to develop theoretical models to facilitate the manufacture and future installation and maintenance of this novel...

  2. 46 CFR 111.79-3 - Grounding pole.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Grounding pole. 111.79-3 Section 111.79-3 Shipping COAST... REQUIREMENTS Receptacles § 111.79-3 Grounding pole. Each receptacle outlet that operates at 100 volts or more must have a grounding pole. ...

  3. Second-harmonic imaging of poled silica waveguides

    DEFF Research Database (Denmark)

    Arentoft, Jesper; Pedersen, Kjeld; Bozhevolnyi, Sergey I.

    2000-01-01

    Electric-field poled silica-based waveguides are characterized by measurements of second-harmonic generation (SHG) and of the linear electro-optic effect (LEO). A SHG scanning technique allowing for high-resolution imaging of poled devices is demonstrated. Scans along the direction of the poling...

  4. The latest figures on uranium

    International Nuclear Information System (INIS)

    Vance, R.

    2010-01-01

    According to the latest figures on uranium, soon to be published by the NEA, uranium resources, production and demand are all on the rise. Exploration efforts have increased recently in line with the expected expansion of nuclear energy in the coming years. Total identified resources have grown and are now sufficient to cover 100 years of supply at 2008 rates of consumption. Costs of production have, however, also increased. This article is based on the latest edition of the 'Red Book', Uranium 2009: Resources, Production and Demand, which presents the results of the most recent biennial review of world uranium market fundamentals and a statistical profile of the world uranium industry as of 1 January 2009. It contains official data provided by OECD Nuclear Energy Agency (NEA) and International Atomic Energy Agency (IAEA) member countries on uranium exploration, resources, production and reactor-related requirements. Projections of nuclear generating capacity and reactor-related uranium requirements through 2035 are also provided as well as a discussion of long-term uranium supply and demand issues. Despite recent declines stemming from the global financial crisis, world demand for electricity is expected to continue to grow significantly over the next several decades to meet the needs of an increasing population and economic growth. The recognition by an increasing number of governments that nuclear power can produce competitively priced, base-load electricity that is essentially free of greenhouse gas emissions, coupled with the role that nuclear can play in enhancing security of energy supply, increases the prospects for growth in nuclear generating capacity, although the magnitude of that growth remains to be determined. Regardless of the role that nuclear energy ultimately plays in meeting rising electricity demand, the uranium resource base is more than adequate to meet projected requirements. Meeting even high-case requirements to 2035 would consume less

  5. Clusters of cyclones encircling Jupiter's poles.

    Science.gov (United States)

    Adriani, A; Mura, A; Orton, G; Hansen, C; Altieri, F; Moriconi, M L; Rogers, J; Eichstädt, G; Momary, T; Ingersoll, A P; Filacchione, G; Sindoni, G; Tabataba-Vakili, F; Dinelli, B M; Fabiano, F; Bolton, S J; Connerney, J E P; Atreya, S K; Lunine, J I; Tosi, F; Migliorini, A; Grassi, D; Piccioni, G; Noschese, R; Cicchetti, A; Plainaki, C; Olivieri, A; O'Neill, M E; Turrini, D; Stefani, S; Sordini, R; Amoroso, M

    2018-03-07

    The familiar axisymmetric zones and belts that characterize Jupiter's weather system at lower latitudes give way to pervasive cyclonic activity at higher latitudes. Two-dimensional turbulence in combination with the Coriolis β-effect (that is, the large meridionally varying Coriolis force on the giant planets of the Solar System) produces alternating zonal flows. The zonal flows weaken with rising latitude so that a transition between equatorial jets and polar turbulence on Jupiter can occur. Simulations with shallow-water models of giant planets support this transition by producing both alternating flows near the equator and circumpolar cyclones near the poles. Jovian polar regions are not visible from Earth owing to Jupiter's low axial tilt, and were poorly characterized by previous missions because the trajectories of these missions did not venture far from Jupiter's equatorial plane. Here we report that visible and infrared images obtained from above each pole by the Juno spacecraft during its first five orbits reveal persistent polygonal patterns of large cyclones. In the north, eight circumpolar cyclones are observed about a single polar cyclone; in the south, one polar cyclone is encircled by five circumpolar cyclones. Cyclonic circulation is established via time-lapse imagery obtained over intervals ranging from 20 minutes to 4 hours. Although migration of cyclones towards the pole might be expected as a consequence of the Coriolis β-effect, by which cyclonic vortices naturally drift towards the rotational pole, the configuration of the cyclones is without precedent on other planets (including Saturn's polar hexagonal features). The manner in which the cyclones persist without merging and the process by which they evolve to their current configuration are unknown.

  6. The Gattini South Pole UV experiment

    Science.gov (United States)

    Moore, Anna M.; Ahmed, Sara; Ashley, Michael C. B.; Croner, Ernest; Delacroix, Alex; Ebihara, Yusuke; Fucik, Jason; Martin, D. Christopher; Velur, Viswa; Weatherwax, Allan

    2012-09-01

    The Gattini South Pole UV experiment (Gattini SPUV) was deployed to the South Pole dark sector in February 2010 and has recently completed a highly successful first season of winter time observations. The experiment has, for the first time ever, measured and categorized the optical night sky brightness at the very blue wavelengths. The experiment consists of a remotely operated 6” aperture custom designed telescope. The telescope feeds a blue sensitive imager with 4 degree field of view that contains a bank of 3 filters: SDSS g’, Bessel U and a custom “super U” filter specifically designed to probe the sky emission at wavelengths approaching the atmospheric cut-off. The filters are continually cycled with exposure times ranging from 30 to 300 seconds throughout the winter period. The telescope, in addition, feeds a 2 degree long slit VPH grating spectrograph with R~1000. The bandwidth is 350-450nm. The spectra are recorded simultaneously with the imager exposures. The experiment is designed for low temperature Antarctic operation and resides on the roof of the MAPO building in the South Pole Antarctic sector. The primary science goals are to categorize the Antarctic winter-time sky background at the very bluest of wavelengths as a pathfinder for the Antarctic Cosmic Web Imager. We present a technical overview of the experiment and results from the first winter season.

  7. The South Pole and the Ross Sea

    Science.gov (United States)

    2002-01-01

    This image shows a rare clear view of the South Pole (lower right) and the Ross Sea, Antarctica. The Sea-viewing Wide Field-of-view Sensor (SeaWiFS) acquired the scene on December 26, 2001. The geographic South Pole is located in the center of Antarctica, at an altitude of 2,900 meters (9,300 feet). It rests on a continent-wide ice sheet that is 2,870 m thick, with the underlying bedrock only 30 m (98 feet) above sea level. The ice underlying the South Pole is as much as 140,000 years old, and is currently accumulating at about 82 cm (32 inches) per year. Roughly 2,500 km (1,550 miles) away is the green water of the Ross Sea, which indicates the presence of large numbers of phytoplankton. This is a highly productive part of the world's oceans. Also note the ice gathered around McMurdo Sound, seen toward the lefthand shoreline of the Ross Sea, at the edge of the Ross Ice Shelf. According to National Science Foundation researchers, this ice is making it difficult for penguins to reach their food supply. Separating the continental Antarctic ice sheet from the Ross Sea are the Queen Maud Mountains and the Ross Ice Shelf. Image courtesy the SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE

  8. Interim report on the fate of wood preservatives in soils adjacent to in-service utility poles in the United States

    International Nuclear Information System (INIS)

    Taylor, B.B.; Ripp, J.; Sims, R.C.

    1995-06-01

    The Electric Power Research Institute (EPRI) is studying the environmental impact of preservatives associated with in-service utility poles. As part of this endeavor, two EPRI contractors, META Environmental, Inc. (META) and Atlantic Environmental Services, Inc. (Atlantic), have collected soil samples from around wood utility poles nationwide, for various chemical and physical analyses. This report covers the results for 107 pole sites in the US. These pole sites included a range of preservative types, soil types, wood types, pole sizes, and in-service ages. The poles in this study were preserved with one of two types of preservative: pentachlorophenol (PCP) or creosote. Approximately 40 to 50 soil samples were collected from each wood pole site in this study. The soil samples collected from the pole sites were analyzed for chlorinated phenols and total petroleum hydrocarbons (TPH) if the pole was preserved with PCP, or for polycyclic aromatic hydrocarbons (PAHs) if the pole was preserved with creosote. The soil samples were also analyzed for physical/chemical parameters, such as pH, total organic carbon (TOC), and cationic exchange capacity (CEC). Additional samples were used in studies to determine biological degradation rates, and soil-water distribution and retardation coefficients of PCP in site soils. Methods of analysis followed standard EPA and ASTM methods, with some modifications in the chemical analyses to enable the efficient processing of many samples with sufficiently low detection limits for this study. All chemical, physical, and site-specific data were stored in a relational computer database

  9. Cultural Decomposition: How To Distinguish Figurative From Non-Figurative

    Directory of Open Access Journals (Sweden)

    Fadil Elmenfi

    2014-04-01

    Full Text Available If interpretation is so essential to the translator's work, some will argue, the entire process of translation will fall outside the realm of Semantics proper, which is the branch of linguistics most relevant to translation. The fact is that work in linguistics semantics has led to the birth of the 'decomposition' theory, alternatively 'componential' analysis, and highly useful observations have been made towards the establishment of a system of analysis capable of universal application. The objective of this paper, therefore, is to bring to light and judge the most common and preferred subjective translation methods used in the translation of cultural (informative texts with reference to modern theories of the twentieth century which have helped to promote a systematic approach to the translation process. At this early stage, touching on them lightly will be sufficient to understand the course that this study intends to take.

  10. FIGURATIVE AND LEXICAL VARIETIES IN FACEBOOK POSTS

    Directory of Open Access Journals (Sweden)

    I Gusti Ayu Vina Widiadnya Putri

    2017-11-01

    Full Text Available Language is a highly elaborated signaling system. It serves various functions in communication, it is used to share ideas, convey feelings and emotions, etc. The researchers are interested to uncover more on how people use language in terms of its variety and lexical in one of the popular social media networking platforms that we all know as Facebook. Based on the aforementioned background of the study, the problem of the research can be formulated as follows: (1 what are the figurative languages used in Facebook posts by female and male Facebook users? (2 How are the emotional lexical varieties e.g. used in Facebook posts? Method of research is a procedure needed to do the research better. In this case, method of research covers data source, data collection and data analysis. The data of this research have been taken from Facebook, it is as an online social networking website where people can create profiles, share information such as photos and quotes about themselves, and respond or link to the information posted by others. The method that used in collecting data is method of library research. They are collected by reading the Facebook user’s post, by underlining and note taking as well. The data analysis is the last step in this process of writing this research. The analysis is done by descriptive method. To make the analysis clearer, all of examples are completed with explanation. Referring to the first research problem, there are some figurative languages used by the Facebook users such as, Simile (female 1 or 4.3% and male 0%, Metaphor (female 4 or 17.3% and male 0%,, Personification (female 3 or 1.3% and male 1% or 4.3%,, Hyperbole (female 4 or 17.3% and male 1 or 4.3%, and Idiom (female 3 or 13% and male 0%,. Furthermore, in regards to the second problem that is emotional lexical used by the Facebook Users, we could mention that both the Augmentatives (female 3 or 13% and male 1 or 4.3%, and Euphemisms (female 1 or 4.3% and male 1 or

  11. Force Profiles of a Linear Switched Reluctance Motor Having Special Pole Face Shapes

    Directory of Open Access Journals (Sweden)

    CHADRESEKAR, V.

    2010-11-01

    Full Text Available In this paper, the results of a finite element analysis are carried out on an new stator geometry of a three phase longitudinal flux Linear Switched Reluctance Motor (LSRM. In the new geometry, pole shoes are affixed to the stator poles. Static and dynamic characteristics for the proposed structure have been highlighted. Motor performance for variable load conditions is discussed. Frequency spectrum analyses of force profile using the fast Fourier transform (FFT are described to predict the vibration frequencies. The 2-Dimensional (2-D finite element analysis (FEA and the experimental results of this paper prove that LSRMs are one of the strong candidates for linear propulsion drives.

  12. The Vernier Caliper and Significant Figures.

    Science.gov (United States)

    Oberhofer, E. S.

    1985-01-01

    Misconceptions occur because the caliper is often read with the same significant figures as a meter stick; however, the precision of the vernier caliper is greater than the precision of a meter stick. Clarification of scale reading, precision of both tools, and significant figures are discussed. (JN)

  13. 49 CFR Appendix - Figures to Part 38

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 1 2010-10-01 2010-10-01 false Figures to Part 38 Transportation Office of the Secretary of Transportation AMERICANS WITH DISABILITIES ACT (ADA) ACCESSIBILITY SPECIFICATIONS FOR TRANSPORTATION VEHICLES Other Vehicles and Systems Trams, and similar vehicles, and systems Pt. 38, Figures...

  14. Dress Images on Gold-foil Figures

    DEFF Research Database (Denmark)

    Mannering, Ulla; Andersson Strand, Eva Birgitta

    2009-01-01

    From the Late Iron Age settlement Sorte Muld on Bornholm both gold foil figures with depictions of costumes and textile tools can tell about textile production.......From the Late Iron Age settlement Sorte Muld on Bornholm both gold foil figures with depictions of costumes and textile tools can tell about textile production....

  15. Evolution of the Significant Figure Rules

    Science.gov (United States)

    Carter, Ashley R.

    2013-01-01

    Today, almost all introductory physics textbooks include standardized "rules" on how to find the number of significant figures in a calculated value. And yet, 30 years ago these rules were almost nonexistent. Why have we increased the role of significant figures in introductory classes, and should we continue this trend? A look back at…

  16. Figure-associated text summarization and evaluation.

    Science.gov (United States)

    Polepalli Ramesh, Balaji; Sethi, Ricky J; Yu, Hong

    2015-01-01

    Biomedical literature incorporates millions of figures, which are a rich and important knowledge resource for biomedical researchers. Scientists need access to the figures and the knowledge they represent in order to validate research findings and to generate new hypotheses. By themselves, these figures are nearly always incomprehensible to both humans and machines and their associated texts are therefore essential for full comprehension. The associated text of a figure, however, is scattered throughout its full-text article and contains redundant information content. In this paper, we report the continued development and evaluation of several figure summarization systems, the FigSum+ systems, that automatically identify associated texts, remove redundant information, and generate a text summary for every figure in an article. Using a set of 94 annotated figures selected from 19 different journals, we conducted an intrinsic evaluation of FigSum+. We evaluate the performance by precision, recall, F1, and ROUGE scores. The best FigSum+ system is based on an unsupervised method, achieving F1 score of 0.66 and ROUGE-1 score of 0.97. The annotated data is available at figshare.com (http://figshare.com/articles/Figure_Associated_Text_Summarization_and_Evaluation/858903).

  17. "Blessed": Musical Talent, Smartness, & Figured Identities

    Science.gov (United States)

    Hoffman, Adria R.

    2015-01-01

    The purpose of this study is to explore smartness and talent as social constructs. Drawing on Holland et al.'s (1998) figured identities, this article explores the figuring of abilities by elucidating the voices of African American high school chorus students. Critical Race Theory (CRT) helps to unpack normalized language and practices that…

  18. Figure-associated text summarization and evaluation.

    Directory of Open Access Journals (Sweden)

    Balaji Polepalli Ramesh

    Full Text Available Biomedical literature incorporates millions of figures, which are a rich and important knowledge resource for biomedical researchers. Scientists need access to the figures and the knowledge they represent in order to validate research findings and to generate new hypotheses. By themselves, these figures are nearly always incomprehensible to both humans and machines and their associated texts are therefore essential for full comprehension. The associated text of a figure, however, is scattered throughout its full-text article and contains redundant information content. In this paper, we report the continued development and evaluation of several figure summarization systems, the FigSum+ systems, that automatically identify associated texts, remove redundant information, and generate a text summary for every figure in an article. Using a set of 94 annotated figures selected from 19 different journals, we conducted an intrinsic evaluation of FigSum+. We evaluate the performance by precision, recall, F1, and ROUGE scores. The best FigSum+ system is based on an unsupervised method, achieving F1 score of 0.66 and ROUGE-1 score of 0.97. The annotated data is available at figshare.com (http://figshare.com/articles/Figure_Associated_Text_Summarization_and_Evaluation/858903.

  19. Design and analysis of full pitch winding and concentrated stator ...

    Indian Academy of Sciences (India)

    the winding, (ii) low cogging torque and permanent magnet (PM) weight. The basic machine configuration is an 8 salient pole rotor and 6 salient pole stator with concentrated windings. Permanent Magnets are fixed to the stator pole. Figure 1 shows this machine configuration. FRM for low-speed servo drive application was ...

  20. Figures of merit for surface plasmon waveguides

    Science.gov (United States)

    Berini, Pierre

    2006-12-01

    Three figures of merit are proposed as quality measures for surface plasmon waveguides. They are defined as benefit-to-cost ratios where the benefit is confinement and the cost is attenuation. Three different ways of measuring confinement are considered, leading to three figures of merit. One of the figures of merit is connected to the quality factor. The figures of merit were then used to assess and compare the wavelength response of hree popular 1-D surface plasmon waveguides: the single metal-dielectric interface, the metal slab bounded by dielectric and the dielectric slab bounded by metal. Closed form expressions are given for the figures of merit of the single metal-dielectric interface.

  1. Efficiency and economic benefits of skipjack pole and line (huhate) in central Moluccas, Indonesia

    Science.gov (United States)

    Siahainenia, Stevanus M.; Hiariey, Johanis; Baskoro, Mulyono S.; Waeleruny, Wellem

    2017-10-01

    Excess fishing capacity is a crucial problem in marine capture fisheries. This phenomenon needed to be investigated regarding sustainability and development of the fishery. This research was aimed at analyzing technical efficiency (TE) and computing financial aspects of the skipjack pole and line. Primary data were collected from the owners of the fishing units at the different size of gross boat tonnage (GT), while secondary data were gathered from official publications relating to this research. Data envelopment analysis (DEA) approach was applied to estimate technical efficiency whereas a selected financial analysis was utilized to calculate economic benefits of the skipjack pole and line business. The fishing units with a size of 26-30 GT provided a higher TE value, and also achieved larger economic benefit values than that of the other fishing units. The empirical results indicate that skipjack pole and line in the size of 26-30 GT is a good fishing gear for the business development in central Moluccas.

  2. Figures of Rhetoric in the Language of Nigerian Christian Sermons ...

    African Journals Online (AJOL)

    Sermons are regarded as an art that integrates scientific analysis, literature and imaginative composition (Vaessen, 1998). The Christian sermonic discourse is highly persuasive and relies on rhetorical figures and devices to achieve its goals of calling people to decisions and modification of behaviours and warning them of ...

  3. The Figured Poem: Towards a Definition of Genre.

    Science.gov (United States)

    Ernst, Ulrich

    1986-01-01

    Presents a poetological analysis of the genre of pattern poetry that distinguishes among various forms of picture text composition and classifies the various sorts of carmina figurata typologically while dealing with the question of continuity of figured poems in ancient, medieval, and modern times. (FL)

  4. Moessbauer study of a Western-Han dynasty pottery figure

    International Nuclear Information System (INIS)

    Zhou Yuan; Dai Kaimei; Liu Rongchuan; Xia Yuanfu; Jiang Zanchu

    1993-01-01

    A grey pottery figure manufactured in the Western-Han Dynasty and the clay gathered from the same site of Beidongshan near Suzhou, China, have been studied by X-ray diffraction, X-ray fluorescence and Moessbauer spectroscopy. They were simultaneously fired under the same conditions in different atmospheres at various temperatures. The information on original firing atmosphere and temperature as well as its provenance can be inferred from the method of pottery re-firing and clay firing. The original firing temperatures deduced from both of them are in good self-agreement. It is found that the values of Moessbauer parameters for the un-re-fired pottery figure are approximately the same as those for the clay fired at 950 deg C for five hours in a reduced atmosphere. The XRF analysis confirmed that the locality of this pottery figure was somewhere near Beidongshan

  5. Using Figure and Concept Knowledge in Geometry

    Directory of Open Access Journals (Sweden)

    Yavuz Karpuz

    2014-08-01

    Full Text Available In this study, we aim to investigate how students build interaction between concepts and figure in geometry. For this purpose we developed two type data collection tool. First one called shapely is formed eight open ended question which has concepts and figure. Second one called shapeless is formed eight open ended question which has only concepts. To prepare this data collection tools’ difficulty level we took two math teachers’ opinions. Developed data collection tools were applied 120 students at 9th grade and 11th grade in Trabzon Gazi Anatolian High School. First of all we applied shapeless questions. One month later we applied shapely questions. We investigated students’ answer and the data showed that students more succeed in shapely questions than shapeless questions. We concluded that the difficulty of solving shapeless question result from students didn’t manage to draw figure representing concept knowledge or draw wrong figure, figure drawn by students can’t fulfıl generalizability condition and students who have little knowledge of concept in geometry is under the influence of prototype figure.Key Words:    Figural concepts theory, geometrical reasoning, geometry teaching

  6. Towards a research pole in photonics in Western Romania

    Science.gov (United States)

    Duma, Virgil-Florin; Negrutiu, Meda L.; Sinescu, Cosmin; Rominu, Mihai; Miutescu, Eftimie; Burlea, Amelia; Vlascici, Miomir; Gheorghiu, Nicolae; Cira, Octavian; Hutiu, Gheorghe; Mnerie, Corina; Demian, Dorin; Marcauteanu, Corina; Topala, Florin; Rolland, Jannick P.; Voiculescu, Ioana; Podoleanu, Adrian G.

    2014-07-01

    We present our efforts in establishing a Research Pole in Photonics in the future Arad-Timisoara metropolitan area projected to unite two major cities of Western Romania. Research objectives and related training activities of various institutions and groups that are involved are presented in their evolution during the last decade. The multi-disciplinary consortium consists principally of two universities, UAVA (Aurel Vlaicu University of Arad) and UMF (Victor Babes Medicine and Pharmacy University of Timisoara), but also of the Arad County Emergency University Hospital and several innovative SMEs, such as Bioclinica S.A. (the largest array of medical analysis labs in the region) and Inteliform S.R.L. (a competitive SME focused on mechatronics and mechanical engineering). A brief survey of the individual and joint projects of these institutions is presented, together with their teaching activities at graduate and undergraduate level. The research Pole collaborates in R&D, training and education in biomedical imaging with universities in USA and Europe. Collaborative activities, mainly on Optical Coherence Tomography (OCT) projects are presented in a multidisciplinary approach that includes optomechatronics, precision mechanics and optics, dentistry, medicine, and biology.

  7. Semantic representations in the temporal pole predict false memories.

    Science.gov (United States)

    Chadwick, Martin J; Anjum, Raeesa S; Kumaran, Dharshan; Schacter, Daniel L; Spiers, Hugo J; Hassabis, Demis

    2016-09-06

    Recent advances in neuroscience have given us unprecedented insight into the neural mechanisms of false memory, showing that artificial memories can be inserted into the memory cells of the hippocampus in a way that is indistinguishable from true memories. However, this alone is not enough to explain how false memories can arise naturally in the course of our daily lives. Cognitive psychology has demonstrated that many instances of false memory, both in the laboratory and the real world, can be attributed to semantic interference. Whereas previous studies have found that a diverse set of regions show some involvement in semantic false memory, none have revealed the nature of the semantic representations underpinning the phenomenon. Here we use fMRI with representational similarity analysis to search for a neural code consistent with semantic false memory. We find clear evidence that false memories emerge from a similarity-based neural code in the temporal pole, a region that has been called the "semantic hub" of the brain. We further show that each individual has a partially unique semantic code within the temporal pole, and this unique code can predict idiosyncratic patterns of memory errors. Finally, we show that the same neural code can also predict variation in true-memory performance, consistent with an adaptive perspective on false memory. Taken together, our findings reveal the underlying structure of neural representations of semantic knowledge, and how this semantic structure can both enhance and distort our memories.

  8. zic-1 Expression in Planarian neoblasts after injury controls anterior pole regeneration.

    Directory of Open Access Journals (Sweden)

    Constanza Vásquez-Doorman

    2014-07-01

    Full Text Available Mechanisms that enable injury responses to prompt regenerative outgrowth are not well understood. Planarians can regenerate essentially any tissue removed by wounding, even after decapitation, due to robust regulation of adult pluripotent stem cells of the neoblast population. Formation of pole signaling centers involving Wnt inhibitors or Wnt ligands promotes head or tail regeneration, respectively, and this process requires the use of neoblasts early after injury. We used expression profiling of purified neoblasts to identify factors needed for anterior pole formation. Using this approach, we identified zic-1, a Zic-family transcription factor, as transcriptionally activated in a subpopulation of neoblasts near wound sites early in head regeneration. As head regeneration proceeds, the Wnt inhibitor notum becomes expressed in the newly forming anterior pole in zic-1-expressing cells descended from neoblasts. Inhibition of zic-1 by RNAi resulted in a failure to express notum at the anterior pole and to regenerate a head, but did not affect tail regeneration. Both injury and canonical Wnt signaling inhibition are required for zic-1 expression, and double-RNAi experiments suggest zic-1 inhibits Wnt signaling to allow head regeneration. Analysis of neoblast fate determinants revealed that zic-1 controls specification of notum-expressing cells from foxD-expressing neoblasts to form the anterior pole, which organizes subsequent outgrowth. Specialized differentiation programs may in general underlie injury-dependent formation of tissue organizing centers used for regenerative outgrowth.

  9. Reanalysis of Clementine Bistatic Radar Data from the Lunar South Pole

    Science.gov (United States)

    Simpson, Richard A.; Tyler, G. Leonard

    1998-01-01

    On 9 April 1994 the Clementine spacecraft high-gain antenna was aimed toward the Moon's surface and the resulting 13-cm wavelength radio echoes were received on Earth. Using these data, we have found that the lunar surface generally follows a Lambertian bistatic scattering function sigma(sub 0) = K(sub D)cos(theta(sub i) with K(sub D) approx. 0.003 for the opposite (expected) sense of circular polarization and K(sub D) approx. 0.001 for the same (unexpected) sense. But there are important deviations-of up to 50% in some parts of the echo spectrum-from this simple form. Based on an earlier analysis of these same data, Nozette et al. claimed detection of an enhancement in echoes with right circular polarization from regions near the South Pole in a near-backscatter geometry. Such behavior would be consistent with presence of perhaps large quantities of water ice near the Pole. We have been unable to reproduce that result. Although we find weak suggestions of enhanced echoes at the time of South Pole backscatter, similar features are present at earlier and later times, adjacent frequencies, and in left circular polarization. If enhanced backscatter is present, it is not unique to the South Pole; if not unique to the Pole, then ice is less likely as an explanation for the enhancement.

  10. Creativity and ease of ambiguous figural reversal.

    Science.gov (United States)

    Wiseman, Richard; Watt, Caroline; Gilhooly, Kenneth; Georgiou, George

    2011-08-01

    Two studies examined the relationships between self-rated and objectively measured creative ability and ease of perceiving alternative interpretations of the ambiguous Duck-Rabbit figure. The studies found empirical support for what has previously been a largely analogical connection between figural reversal and creativity, using both self-rated trait creativity and objectively scored creative productivity. We discuss the hypothesis that executive functioning is the likely common cognitive factor linking perception of ambiguous figures and creative ability. ©2011 The British Psychological Society.

  11. Annunciations - Figuring the Feminine in Renaissance Art

    Directory of Open Access Journals (Sweden)

    John M. Carvalho

    2016-01-01

    Full Text Available Viewers of Renaissance representations of the Annunciation miss an important irony. Where Mary is figured as unimpressed by Gabriel's proposal, she is upholding a masculinist ideal of female virtue. Where she is figured as delighted by the news, she represents an alternative feminine ideal that continues to be attractive to women and feminists, today. Inspired by the writings of Luce Irigaray and Julia Kristeva, I figure Mary in Renaissance representations of the Annunciation as contesting an ideal of feminine virtue that would deny her sexual difference and deny her pleasure in fulfilling her role as the bride and mother of God.

  12. The aesthetics of simple figures.

    Science.gov (United States)

    McManus, I C

    1980-11-01

    After reviewing the literature on experimental rectangle aesthetics ('the golden section') it was concluded that all of the effects demonstrated in the literature were dubious, either due to methodological limitations or inadvertent experimenter bias, these defects being compounded by most studies only considering population preferences and ignoring individual differences in preference. A series of experiments is described in which highly significant and temporally stable, but somewhat idiosyncratic, individual preferences were found. A taxonomy of these preferences, as well as of those for three separate types of triangle preference, is provided, based on factorial analysis. Two clear factors were demonstrated, one based on the square, and the other upon a proportion similar to that of the golden section.

  13. Performance evaluation of a five-phase modular external rotor PM machine with different rotor poles

    Directory of Open Access Journals (Sweden)

    A.S. Abdel-Khalik

    2012-12-01

    Full Text Available The performance of fault-tolerant modular permanent magnet (PM machines depends on the proper selection of the pole and slot numbers which result in negligible coupling between phases. The preferred slot and pole number combinations eliminate the effect of low order harmonics in the stator magneto motive force and thereby the vibration and stray loss are reduced. In this paper, three external rotor machines with identical machine dimensions are designed with different slots per phase per pole (SPP ratios. A simulation study is carried out using finite element analysis to compare the performance of the three machines in terms of machine torque density, ripple torque, core loss, and machine efficiency. A mathematical model based on the conventional phase model approach is also used for the comparative study. The simulation study is extended to depict machine performance under fault conditions.

  14. Five-Phase Modular External Rotor PM Machines with Different Rotor Poles: A Comparative Simulation Study

    Directory of Open Access Journals (Sweden)

    A. S. Abdel-Khalik

    2012-01-01

    Full Text Available The performance of fault-tolerant modular permanent magnet machines depends on the proper selection of the pole and slot numbers which result in negligible coupling between phases. The preferred slot and pole number combinations eliminate the effect of low-order harmonics in the stator magnetomotive force and thereby the vibration and stray loss are reduced. In this paper, three external rotor machines with identical machine dimensions are designed with different slots per phase per pole ratios. A simulation study is carried out using finite element analysis to compare the performance of the three machines in terms of machine torque density, ripple torque, core loss, and machine efficiency. A mathematical model based on the conventional-phase-model approach is also used for the comparative study. The simulation study is extended to depict machine performance under fault conditions.

  15. The Figure 8 Model of International Relations

    National Research Council Canada - National Science Library

    Sibayan, Jerome T

    2008-01-01

    .... The Figure 8 Model is presented first in a Cartesian format and then in geometrical form. This model is an intuitive idea based on a particular reading of history rather than a new international relations theory...

  16. Spheres of Exemption, Figures of Exclusion

    DEFF Research Database (Denmark)

    , the history of ideas, social science, political science and literature studies, Spheres of Exemption, Figures of Exclusion offers thirteen investigations into the co-constitutive relationship between subjectivity and political and legal order, combining theoretical reflection with empirical and historical...

  17. Multiple pole in the electron--hydrogen-atom scattering amplitude

    International Nuclear Information System (INIS)

    Amusia, M.Y.; Kuchiev, M.Y.

    1982-01-01

    It is demonstrated that the amplitude for electron--hydrogen-atom forward scattering has the third-order pole at the point E = -13.6 eV, E being the energy of the incident electron. The coefficients which characterize the pole are calculated exactly. The invalidity of the Born approximation is proved. The contribution of the pole singularity to the dispersion relation for the scattering amplitude is discussed

  18. Deterministic figure correction of piezoelectrically adjustable slumped glass optics

    Science.gov (United States)

    DeRoo, Casey T.; Allured, Ryan; Cotroneo, Vincenzo; Hertz, Edward; Marquez, Vanessa; Reid, Paul B.; Schwartz, Eric D.; Vikhlinin, Alexey A.; Trolier-McKinstry, Susan; Walker, Julian; Jackson, Thomas N.; Liu, Tianning; Tendulkar, Mohit

    2018-01-01

    Thin x-ray optics with high angular resolution (≤ 0.5 arcsec) over a wide field of view enable the study of a number of astrophysically important topics and feature prominently in Lynx, a next-generation x-ray observatory concept currently under NASA study. In an effort to address this technology need, piezoelectrically adjustable, thin mirror segments capable of figure correction after mounting and on-orbit are under development. We report on the fabrication and characterization of an adjustable cylindrical slumped glass optic. This optic has realized 100% piezoelectric cell yield and employs lithographically patterned traces and anisotropic conductive film connections to address the piezoelectric cells. In addition, the measured responses of the piezoelectric cells are found to be in good agreement with finite-element analysis models. While the optic as manufactured is outside the range of absolute figure correction, simulated corrections using the measured responses of the piezoelectric cells are found to improve 5 to 10 arcsec mirrors to 1 to 3 arcsec [half-power diameter (HPD), single reflection at 1 keV]. Moreover, a measured relative figure change which would correct the figure of a representative slumped glass piece from 6.7 to 1.2 arcsec HPD is empirically demonstrated. We employ finite-element analysis-modeled influence functions to understand the current frequency limitations of the correction algorithm employed and identify a path toward achieving subarcsecond corrections.

  19. South Pole Region of the Moon as Seen by Clementine

    Science.gov (United States)

    1994-01-01

    Lunar mosaic of 1500 Clementine images of the south polar region of the moon. The projection is orthographic, centered on the south pole. The Schrodinger Basin (320 km in diameter) is located in the lower right of the mosaic. Amundsen-Ganswindt is the more subdued circular basin between Schrodinger and the pole. The polar regions of the moon are of special interest because of the postulated occurrence of ice in permanently shadowed areas. The south pole is of greater interest because the area that remains in shadow is much larger than that at the north pole.

  20. Thermal poling of multi-wire array optical fiber

    DEFF Research Database (Denmark)

    Huang, Lin; An, Honglin; Hayashi, Juliano G.

    2018-01-01

    We demonstrate in this paper thermal poling of multi-wire array fibers, which extends poling of fibers with two anodes to similar to 50 and similar to 500 wire array anodes. The second harmonic microscopy observations show that second order nonlinearity (SON) layers are developed surrounding all...... the rings of wires in the similar to 50 anode array fiber with poling of 1.8kV, 250 degrees C and 30min duration, and the outer rings of the similar to 500 anode array fiber at lower poling temperature. Our simulations based on a two-dimensional charge dynamics model confirm this can be explained...

  1. Presenting Fake Figures: A Tool to Teach Effective Scientific Figure Design

    Directory of Open Access Journals (Sweden)

    Veronica A. Segarra

    2013-08-01

    Full Text Available As trained scientists, we become adept not only at analyzing and understanding figures in the scientific literature, but also at designing figures to effectively represent our own data and findings. As educators, we strive to pass on these skills to our students, some of whom will ultimately become scientists themselves. Conveying the principles of effective figure design can be challenging, particularly when students have had little exposure to the process of reading scientific literature, much less writing a piece of scientific literature. Improvisational activities in the classroom reinforce teaching goals such as spontaneity, risk-taking, creativity, communication skills, team-building, and critical thinking (2. Indeed, improv training for scientists is becoming more common, helping scientists to communicate more spontaneously about their work and connect with their audience (1. In this article, we present an improvisational game that can aid in the teaching of effective scientific figure design. This “Present-a-Fake-Figure Exercise” is applicable to both the classroom and laboratory settings. In this learning activity, students improvise presenting fake scientific figures to an audience of their peers. These fake figures are prepared beforehand by the instructor and exemplify the do’s and don’ts of scientific figure design. Some of the learning outcomes of the activity include (1 identifying what makes a scientific figure cohesive, easy to analyze, and reader-friendly, and (2 identifying strategies that are useful in the design of a multi-panel figure to convey a scientific story.

  2. Bridging the Poles: Education Linked with Research

    Science.gov (United States)

    Pfirman, S.; Bell, R. E.; Turrin, M.; Maru, P.

    2004-12-01

    An international group of 65 scientists, educators and media specialists gathered at the "Bridging the Poles" workshop in Washington, DC on June 23-25, to define strategies that will inspire the general public and engage the next generation of polar scientists, engineers and leaders. This NSF-sponsored workshop was the first effort to develop an integrated education and outreach program for the International Polar Year of 2007-2009. Through a series of plenary talks and roundtable discussions, workshop participants focused on: engaging diverse communities, opportunities and needs for different levels, possibilities for thematic areas, and programs to feature nationally and internationally over the next 5 years. To maximize the potential of the International Polar Year, we need to coordinate research, education and outreach efforts, at the international as well as national level, with the goal of building an integrated and exciting public presence during 2007-2009. Successful education and outreach programming requires leveraging existing resources, creating new programs, connecting communities, and developing partnerships between agencies, scientists, educators, and the public. We need to consider the rich heritage of indigenous Arctic peoples, build capacity within communities through targeted efforts, and focus on making the poles relevant to diverse communities by using interdisciplinary approaches, e.g. cultural as well as scientific. A series of education and outreach packages for large-scale science endeavors should be rolled out to the public as major media events. The media -- television, radio and print -- as well as educators, zoos and museums are eager to use timely, accessible, and meaningful content. An Interagency Working Group on IPY Education and Outreach, with a staff and a central office, must be created to coordinate and leverage programs. A sophisticated web portal should be developed to serve content and contacts for researchers, educators, the

  3. Figure reversals and creativity: a research note.

    Science.gov (United States)

    Simpson, M T; Lansky, L M; Senter, R J; Peterson, J M

    1983-10-01

    In a series of studies, Bergum and Bergum (1979a, 1979b) noted a positive relationship between college students' self-perceptions of creativity and their passive rates of ambiguous figure reversal. While these authors suggest that a relationship may also exist between figure-reversal rate and creativity, as assessed by external measures, their research does not support this claim. Indeed, other research has not substantiated a relationship between rate of figure reversal and objective tests of creativity (Bloomberg, 1971; Bergum & Flamm, 1975). It may also be the case that students' perceptions of their own creative ability differ markedly from externally-derived measures of such ability. As part of a larger study relating figure-reversal rate, creativity, and handedness, the present authors attempted to replicate and extend the work of Bergum and Bergum through the use of professors' judgments of students' creativity. The subjects were 48 senior students of architecture (40 males, 8 females). Each student initially read a description of six factors commonly associated with creativity in the psychological literature and then rated himself in creative ability in comparison to his classmates. In accordance with Bergum and Bergum (1979a, 1979b), the students passively viewed (and recorded) figure reversals of six ambiguous figures. The six figures were presented for 60 sec. each, with 10-sec. intervals, in two random orders. Students' creative ability was also determined from rankings by two architecture professors who were familiar with the students' work. To guide their rankings, the professors used the same description of creativity as was given to the students.(ABSTRACT TRUNCATED AT 250 WORDS)

  4. Retratos da metrópole parisiense

    OpenAIRE

    Saint-Julien, Thérèse; Goix, Renaud Le

    2009-01-01

    « La métropole parisienne, centralité, inégalité, proximité » propõe uma leitura e uma interpretação das tendências do território da Île de France (a região que inclui Paris e sete outros départements), ou seja, uma grande metrópole mundial de cerca de 11,3 milhões de habitantes em 2004, ligada às redes da globalização e da metropolização. O livro esboça os traços principais de suas estruturas territoriais emergentes, sublinha os desafios, o alcance dos mesmos e as contradições. Sem pretensão...

  5. Retratos da metrópole parisiense

    Directory of Open Access Journals (Sweden)

    Thérèse Saint-Julien

    2009-07-01

    Full Text Available « La métropole parisienne, centralité, inégalité, proximité » propõe uma leitura e uma interpretação das tendências do território da Île de France (a região que inclui Paris e sete outros départements, ou seja, uma grande metrópole mundial de cerca de 11,3 milhões de habitantes em 2004, ligada às redes da globalização e da metropolização. O livro esboça os traços principais de suas estruturas territoriais emergentes, sublinha os desafios, o alcance dos mesmos e as contradições. Sem pretensão...

  6. Figure and flesh : Francis Bacon's challenge to the figurative tradition in Western art

    OpenAIRE

    Telci, Müge

    2002-01-01

    Ankara : The Department of Graphic Design and the Institute of Fine Arts of Bilkent University, 2002. Thesis (Master's) -- Bilkent University, 2002. Includes bibliographical references leaves 79-81. When figuring the body is at stake within the Western tradition of art, figuration comes up as a question of framing and controlling the mass of body (flesh, bones, body liquids etc…). The apparent obsession of Western art with perfect body figures might be understood as an attem...

  7. Jupiter's interior and deep atmosphere: The initial pole-to-pole passes with the Juno spacecraft

    Science.gov (United States)

    Bolton, S. J.; Adriani, A.; Adumitroaie, V.; Allison, M.; Anderson, J.; Atreya, S.; Bloxham, J.; Brown, S.; Connerney, J. E. P.; DeJong, E.; Folkner, W.; Gautier, D.; Grassi, D.; Gulkis, S.; Guillot, T.; Hansen, C.; Hubbard, W. B.; Iess, L.; Ingersoll, A.; Janssen, M.; Jorgensen, J.; Kaspi, Y.; Levin, S. M.; Li, C.; Lunine, J.; Miguel, Y.; Mura, A.; Orton, G.; Owen, T.; Ravine, M.; Smith, E.; Steffes, P.; Stone, E.; Stevenson, D.; Thorne, R.; Waite, J.; Durante, D.; Ebert, R. W.; Greathouse, T. K.; Hue, V.; Parisi, M.; Szalay, J. R.; Wilson, R.

    2017-05-01

    On 27 August 2016, the Juno spacecraft acquired science observations of Jupiter, passing less than 5000 kilometers above the equatorial cloud tops. Images of Jupiter's poles show a chaotic scene, unlike Saturn's poles. Microwave sounding reveals weather features at pressures deeper than 100 bars, dominated by an ammonia-rich, narrow low-latitude plume resembling a deeper, wider version of Earth's Hadley cell. Near-infrared mapping reveals the relative humidity within prominent downwelling regions. Juno's measured gravity field differs substantially from the last available estimate and is one order of magnitude more precise. This has implications for the distribution of heavy elements in the interior, including the existence and mass of Jupiter's core. The observed magnetic field exhibits smaller spatial variations than expected, indicative of a rich harmonic content.

  8. pbx is required for pole and eye regeneration in planarians.

    Science.gov (United States)

    Chen, Chun-Chieh G; Wang, Irving E; Reddien, Peter W

    2013-02-01

    Planarian regeneration involves regionalized gene expression that specifies the body plan. After amputation, planarians are capable of regenerating new anterior and posterior poles, as well as tissues polarized along the anterior-posterior, dorsal-ventral and medial-lateral axes. Wnt and several Hox genes are expressed at the posterior pole, whereas Wnt inhibitory genes, Fgf inhibitory genes, and prep, which encodes a TALE-family homeodomain protein, are expressed at the anterior pole. We found that Smed-pbx (pbx for short), which encodes a second planarian TALE-family homeodomain transcription factor, is required for restored expression of these genes at anterior and posterior poles during regeneration. Moreover, pbx(RNAi) animals gradually lose pole gene expression during homeostasis. By contrast, pbx was not required for initial anterior-posterior polarized responses to wounds, indicating that pbx is required after wound responses for development and maintenance of poles during regeneration and homeostatic tissue turnover. Independently of the requirement for pbx in pole regeneration, pbx is required for eye precursor formation and, consequently, eye regeneration and eye replacement in homeostasis. Together, these data indicate that pbx promotes pole formation of body axes and formation of regenerative progenitors for eyes.

  9. Second harmonic generation from corona-poled polymer thin films ...

    Indian Academy of Sciences (India)

    2014-02-09

    Feb 9, 2014 ... We characterize thermal stability of second harmonic generation (SHG) properties of four different Y-type polymers poled using corona poling method. These polymers are based on donor–acceptor–donor-type repeating unit with different aromatic moieties acting as donors and dicyanomethylene acting as ...

  10. Derivation of nominal strength for wood utility poles

    Science.gov (United States)

    Ronald W. Wolfe; Jozsef Bodig; Patricia Lebow

    2001-01-01

    The designated fiber stress values published in the American National Standards Institute Standard for Poles, ANSI 05.1, no longer reflect the state of the knowledge. These values are based on a combination of test data from small clear wood samples and small poles (

  11. Second harmonic generation from corona-poled polymer thin films ...

    Indian Academy of Sciences (India)

    2014-02-09

    Feb 9, 2014 ... Abstract. We characterize thermal stability of second harmonic generation (SHG) properties of four different Y-type polymers poled using corona poling method. These polymers are based on donor–acceptor–donor-type repeating unit with different aromatic moieties acting as donors and dicyanomethylene ...

  12. Three Phase Soft Commutation Auxilary Resonant Pole Inverter

    OpenAIRE

    Vaclav Sladecek

    2006-01-01

    This paper covers the circuit modification of the power part of the inverter with auxiliary resonant poles utilising configuration of switches realised with routinely produced IGBT modules. Covered is also the control optimisation which goal is the minimisation of switching of the auxiliary resonant pole. Presented results were gained on a prototype of an inverter laboratory sample.

  13. Finite element analyses of wood laminated composite poles

    Science.gov (United States)

    Cheng Piao; Todd F. Shupe; R.C. Tang; Chung Y. Hse

    2005-01-01

    Finite element analyses using ANSYS were conducted on orthotropic, polygonal, wood laminated composite poles subjected to a body force and a concentrated load at the free end. Deflections and stress distributions of small-scale and full-size composite poles were analyzed and compared to the results obtained in an experimental study. The predicted deflection for both...

  14. Gluability of out-of-service utility poles

    Science.gov (United States)

    Han Roliadi; Chung Y. Hse; Elvin T. Choong; Todd F. Shupe

    2000-01-01

    This investigation determined the gluability of weathered, out-of-service southern yellow pine (SYP) (Pinus spp.) utility poles. Three types of adhesives were used: resorcinol-phenol formaldehyde (RPF), polyvinyl acetate (PVA), and casein. The poles consisted of two service duration groups: 5 and 25 years. Longer weathering caused greater reduction in creosote content...

  15. From Beale Number to Pole Placement Design of a Free Piston Stirling Engine

    Directory of Open Access Journals (Sweden)

    Zare Shahryar

    2017-12-01

    Full Text Available In this paper, pole placement-based design and analysis of a free piston Stirling engine (FPSE is presented and compared to the well-defined Beale number design technique. First, dynamic and thermodynamic equations governing the engine system are extracted. Then, linear dynamics of the free piston Stirling engine are studied using dynamic systems theory tools such as root locus. Accordingly, the effects of variations of design parameters such as mass of pistons, stiffness of springs, and frictional damping on the locations of dominant closed-loop poles are investigated. The design procedure is thus conducted to place the dominant poles of the dynamic system at desired locations on the s-plane so that the unstable dynamics, which is the required criterion for energy generation, is achieved. Next, the closed-loop poles are selected based on a desired frequency so that a periodical system is found. Consequently, the design parameters, including mass and spring stiffness for both power and displacer pistons, are obtained. Finally, the engine power is calculated through the proposed control-based analysis and the result is compared to those of the experimental work and the Beale number approach. The outcomes of this work clearly reveal the effectiveness of the control-based design technique of FPSEs compared to the well-known approaches such as Beale number.

  16. Solar Open Flux Migration from Pole to Pole: Magnetic Field Reversal.

    Science.gov (United States)

    Huang, G-H; Lin, C-H; Lee, L C

    2017-08-25

    Coronal holes are solar regions with low soft X-ray or low extreme ultraviolet intensities. The magnetic fields from coronal holes extend far away from the Sun, and thus they are identified as regions with open magnetic field lines. Coronal holes are concentrated in the polar regions during the sunspot minimum phase, and spread to lower latitude during the rising phase of solar activity. In this work, we identify coronal holes with outward and inward open magnetic fluxes being in the opposite poles during solar quiet period. We find that during the sunspot rising phase, the outward and inward open fluxes perform pole-to-pole trans-equatorial migrations in opposite directions. The migration of the open fluxes consists of three parts: open flux areas migrating across the equator, new open flux areas generated in the low latitude and migrating poleward, and new open flux areas locally generated in the polar region. All three components contribute to the reversal of magnetic polarity. The percentage of contribution from each component is different for different solar cycle. Our results also show that the sunspot number is positively correlated with the lower-latitude open magnetic flux area, but negatively correlated with the total open flux area.

  17. Energy in Sweden. Facts and figures 2005

    International Nuclear Information System (INIS)

    2005-12-01

    Energy in Sweden. Facts and Figures 2005 contains the tabular data for most of the diagrams in the main publication. These data consist primarily of the results of the Agency's processing of basic data from Statistics Sweden. Facts and Figures is available at www.stem.se in pdf- and excel file formats. With effect from the 2001 edition, statistics are of preliminary character for the two preceding years (2003 and 2004). Breakdowns into certain types of fuels vary somewhat depending on whether preliminary or final data has been used. Further information about the statistics can be found in Energy in Sweden, chapter 8 Energy Facts

  18. The method for celestial bodies’ center of mass position relative to their figures determination on the basis of harmonic analysis of the expansion in spherical functions in order to refine the physical libration parameters

    Science.gov (United States)

    Demina, N. Y.; Andreev, A. O.; Demin, S. A.; Nefedyev, Y. A.

    2017-11-01

    In this paper the problem of the lunar center of mass relative to the center of its figure determination on the basis of space observations is considered, since the Moon is the most studied celestial object and there is a complete database on it. The future prospects for lunar laser ranging and radio interferometry require development of adequate theoretical support for modern technologies. The aim of these studies is the distances’ measurement between the Moon and the Earth with an accuracy of 1 mm. Thus, determination of the lunar center of mass position, represented in this paper, and development of the selenocentric system will allow to solve the above mentioned problem more accurately and reliably. The new values of the lunar center of mass relative to its center of figure in orthogonal selenographic coordinate system Δξ, Δη, Δζ have been determined; they are: -1.75, -0.75, 0.11 km respectively.

  19. Influence of the radiation (Co60) in pre-implants rabbit embryos: effect on atypic mitotic index and embryo pole development

    International Nuclear Information System (INIS)

    Approbato, Mario S.; Oliveira Moura, Katia K.V. de; Souza Florencio, Rodopiano de; Garcia, Ricardo; Faria, Renato S.; Benedetti, Leonardo N.; Goulart, Flamarion B.

    1995-01-01

    We studied the effect of ionizing irradiation on 12 New Zealand rabbits (65 embryos), at three different times: at match time (zero hour), two days after and four days after, with two different irradiation doses: five c Gy and ten c Gy. Six rabbits (36 blastocysts) were used as controls. the matching instant was the zero hour. Exactly six days after (± 60 minutes) the embryos of each rabbit was picked up by flushing the uterus with culture media. the embryos were fixed in methanol for 48 hours, and colored with acid Mayer hematoxylin. The following embryo parameters were studied: embryo pole development; percentage of abnormal mitotic figures. irradiation time was associated with lower scores of embryo pole development, but not with irradiation dose. There were no gross abnormalities of embryo pole. The abnormal mitotic cells was affected both by the time and dose of irradiation. (author)

  20. The Role of Inhibitory Control in the Development of Human Figure Drawing in Young Children

    Science.gov (United States)

    Riggs, Kevin J.; Jolley, Richard P.; Simpson, Andrew

    2013-01-01

    We investigated the role of inhibitory control in young children's human figure drawing. We used the Bear-Dragon task as a measure of inhibitory control and used the classification system devised by Cox and Parkin to measure the development of human figure drawing. We tested 50 children aged between 40 and 64 months. Regression analysis showed…

  1. Pole Dancing Auto-ethnography – Practice, Pedagogy, Performance

    Directory of Open Access Journals (Sweden)

    Amy Patricia Cadwallader

    2017-02-01

    Full Text Available In this research paper, the author addresses the following four questions: 1 What are the implications of bringing pole dancing into concert dance, not as a caricature or theatrical version of what is performed in strip clubs, but as its own, free-standing art form? 2 In what ways will years of ballet and modern dance training influence the type of dancing that emerges from dancers when poles and other apparatuses are introduced? 3 How can the author create an original pole dancing style and pedagogical methods for teaching it? 4 Who participates in pole fitness classes and how does the demographic change based on location? What about when pole fitness classes are offered in an academic setting? The author shares first-hand experiences of investigating pole dancing in fitness classes, attending performances, engaging in a rehearsal process with highly trained dancers, and teaching pole dancing to movers with a wide range of abilities. The author addresses how research plans changed as she encountered limitations of budget and time constraints. The author also elaborates on the creative process that she engaged in with her thesis cast, collaborators, and supporting designers in the making of Super-beneath, a theatrical dance work that uses five, free-standing poles. She outline the vignettes, overall structure, and narrative of the work. The author then discusses where this research fits into the larger field of pole dancing, and the even larger field of dance. In the final sections of this paper, the author describes her pedagogical practices relating to pole classes, what “practice as research” means to her, and how she would like to continue on this research trajectory in the future.

  2. Michelangelo, Leibniz and the Serpentine Figure

    NARCIS (Netherlands)

    S. Tuinen (Sjoerd)

    2011-01-01

    textabstractAbstract In his lectures from 1987, Deleuze draws an analogy between Michelangelo‟s figures and Leibnizian substances by claiming that neither are essences but rather sources of modifications or manners of being. The best way to explore this analogy, I argue, is by focusing on

  3. The Offerings of Fringe Figures and Migrants

    Science.gov (United States)

    Engels-Schwarzpaul, A.-Chr.

    2015-01-01

    "The Western tradition", as passe-partout, includes fringe figures, émigrés and migrants. Rather than looking to resources at the core of the Western tradition to overcome its own blindnesses, I am more interested in its gaps and peripheries, where other thoughts and renegade knowledges take hold. It is in the contact zones with…

  4. Photovoltaic power production figures in 1992

    International Nuclear Information System (INIS)

    1993-01-01

    Worldwide figures of photovoltaic power production (in Mw) along 1992 are presented. Worldwide production of modules per manufacturing technology and per manufacturing companies in Europe, USA and Japan are provided as well. The review has used the following sources: ''PV News'', ''PV insider's report'' and ''systems solars''. (Author)

  5. Participation in the Figured World of Graffiti

    Science.gov (United States)

    Valle, Imuris; Weiss, Eduardo

    2010-01-01

    This article is based on ethnographic work with two "crews" of young graffiti artists in southern Mexico City. The crews share certain characteristics with gangs or urban tribes, but more with "communities of practice": they live in the "figured world" of graffiti, a community of practice at the local and global…

  6. Edge effect correction using ion beam figuring.

    Science.gov (United States)

    Yang, Bing; Xie, Xuhui; Li, Furen; Zhou, Lin

    2017-11-10

    The edge effect is regarded as one of the most difficult technical issues for fabricating large primary mirrors, as it can greatly reduce the key performance of the optical system. Ion beam figuring (IBF) has the advantage of no edge effect, so we can use it to remove high points on the edge and improve surface accuracy. The edge local correction method (ELCM) of IBF processes only the surface edge zone, and is very different from the current full caliber figuring method (FCFM). Therefore, it is necessary to study the ELCM of IBF. In this paper, the key factors of ELCM are analyzed, such as dwell time algorithm, edge data extension methods, and the outward dimension of the starting figuring point. At the same time, the distinctions between ELCM and FCFM are compared. Finally, a 142 mm diameter fused silica mirror is fabricated to verify the validity of the theoretical of ELCM. The experimental results indicate that the figuring precision and efficiency can be obviously improved by ELCM.

  7. Heavy Cratering near Callisto's South Pole

    Science.gov (United States)

    1997-01-01

    Images from NASA's Galileo spacecraft provide new insights into this region near Callisto's south pole. This two frame mosaic shows a heavily cratered surface with smooth plains in the areas between craters. North is to the top of the image. The smoothness of the plains appears to increase toward the south pole, approximately 480 kilometers (293 miles) south of the bottom of the image. This smoothness of Callisto's surface was not evident in images taken during the 1979 flyby of NASA's Voyager spacecraft because the resolution was insufficient to show the effect. This smooth surface, and the process(es) that cause it, are among the most intriguing aspects of Callisto. Although not fully understood, the process(es) responsible for this smoothing could include erosion by tiny meteorites and energetic ions. Some craters, such as Keelut, the 47 kilometer (29 mile) crater in the lower right corner, have sharp, well defined rims. Keelut contains an inner ring surrounding a central depression about 17 kilometers (11 miles) in diameter. Keelut, and the more irregularly shaped, degraded Reginleif, the 32 kilometer (19.5 mile) crater in the top center of the image, are very shallow and have flat floors. Crater forms can be seen down to less than 2 kilometers (1.2 miles) in diameter in the image. Each picture element (pixel) in this image is approximately 0.68 kilometers (0.41 miles) across.This image which was taken by the Galileo spacecraft's solid state imaging (CCD) system during its eighth orbit around Jupiter, on May 6th, 1997. The center of the image is located at 71.3 degrees south latitude, 97.6 degrees west longitude, and was taken when the spacecraft was approximately 35,470 kilometers (21,637 miles) from Callisto.The Jet Propulsion Laboratory, Pasadena, CA manages the mission for NASA's Office of Space Science, Washington, DC.This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at URL http

  8. Noise generation mechanisms in claw pole alternators

    Science.gov (United States)

    Eversman, W.; Burns, S.; Pekarek, S.; Bai, Hua; Tichenor, J.

    2005-05-01

    Noise of claw pole alternators, generated electromagnetically and structurally radiated, has been the subject of an extensive research program. The goal has been to identify and reduce noise radiation mechanisms in claw pole (Lundell) alternators used in automotive applications. Two approaches have been followed. In the first, electromagnetic sources of noise have been investigated by lumped parameter and magnetically equivalent circuit modeling and simulation, and by related experimentation. This is the subject of separate papers. The second, concurrent study reported here has investigated machine and mount responses to an electromagnetically generated torque ripple. Modeling and experimentation has led to the conclusion that there exists a high correlation between electromagnetic sources, torque ripple, and radiated noise. Experimentation also has led to the conclusion that noise characteristics of a given machine are substantially altered by modification of the mounting configuration. The work reported here involves modeling, simulation, and experiment to isolate machine dynamic characteristics and mounting geometries which contribute to strong coupling between torque ripple and machine/mount dynamic response. A low-order model of the alternator which includes shaft flexibility, gyroscopic effects, shaft bearing asymmetry, mounting lug geometry, and mounting structure dynamics has been created. The model provides a rapid simulation of dynamic response in the form of a transfer function between torque ripple and mounting forces. Generic studies of a simplified mounting structure coupled to the machine model are presented here. Acoustic testing of several machine configurations on a production mount has been carried out to investigate 36th order noise in three phase machines and 72nd order noise in six-phase machines. Electromagnetic modeling and dynamic response simulations suggest that the six-phase machine is inherently quieter. This is supported by

  9. Territorial Balancing of Poles of Development

    Directory of Open Access Journals (Sweden)

    CLAUDIA POPESCU

    2008-01-01

    Full Text Available The paper is part of the study "Specific problems of the development of the settlement network in south-eastern Romania. Regions of development 3 (South, 4 (South-West and 8 (Bucharest-Ilfov" elaborated during 2004 – 2006, within the AMTRANS programme funded by the Ministry of Education and Research, coordinated by INCD – URBANPROIECT in partnership with the Institute of Geography of the Romanian Academy and the Qualification in Statistics National Centre. The general objective of the project was sustainable and balanced spatial development of the settlement network and promotion of new relationships between urban and rural. Concretely, the study has produced a model of a polycentric and balanced settlement network according to the European principles. The case study testing and validating this model took place in southern Romania, territory exhibiting acutely the entire range of problems related to the state of the settlement network: profoundly large rural areas, accentuated dynamics of declaring new cities without sufficient evidence, excessive polarization exercised by Bucharest, etc. The paper presents the intervention directions needed to balance in the territory urban poles within the studied area, focusing on the establishment of orientation policies to consolidate the role of each settlement based on the hierarchical level of importance: European, national, regional, and local. The paper also identifies possible functional urban areas: the metropolitan area of Bucharest, areas of potential strategic integration, areas of cooperation between the small and medium-sized cities and the rural regions. Within each of these areas, the paper proposes to establish new relationships between urban and rural based on partnership, involving cooperation and coordination in achieving common goals.The study considers that the poles of development are the key element of proposed model, and their identification, formation, and balanced distribution

  10. Pole preservatives in soils adjacent to in-service utility poles in the United States. Final report

    International Nuclear Information System (INIS)

    Taylor, B.B.; Ripp, J.A.; Ladwig, K.

    1997-12-01

    As a result of increasing concerns regarding the environmental fate of wood preservatives, EPRI carried out a study of soils in the vicinity of in-service wood pole sites. More than 8,000 soil samples adjacent to 180 PCP-treated and 22 creosote-treated wood poles were collected and analyzed for chemicals of interest. The results showed that concentrations of wood preservative chemicals tended to be highest in soils located in very close proximity to the poles with rapid decreases in concentrations observed with distance from the poles. Soil partitioning, biodegradation, and modeling studies on PCP were also completed to augment the soil data and to provide additional information on the release, migration, and fate of wood preservatives at in-service pole sites

  11. INFORMATIONAL MODEL OF MENTAL ROTATION OF FIGURES

    Directory of Open Access Journals (Sweden)

    V. A. Lyakhovetskiy

    2016-01-01

    Full Text Available Subject of Study.The subject of research is the information structure of objects internal representations and operations over them, used by man to solve the problem of mental rotation of figures. To analyze this informational structure we considered not only classical dependencies of the correct answers on the angle of rotation, but also the other dependencies obtained recently in cognitive psychology. Method.The language of technical computing Matlab R2010b was used for developing information model of the mental rotation of figures. Such model parameters as the number of bits in the internal representation, an error probability in a single bit, discrete rotation angle, comparison threshold, and the degree of difference during rotation can be changed. Main Results.The model reproduces qualitatively such psychological dependencies as the linear increase of time of correct answers and the number of errors on the angle of rotation for identical figures, "flat" dependence of the time of correct answers and the number of errors on the angle of rotation for mirror-like figures. The simulation results suggest that mental rotation is an iterative process of finding a match between the two figures, each step of which can lead to a significant distortion of the internal representation of the stored objects. Matching is carried out within the internal representations that have no high invariance to rotation angle. Practical Significance.The results may be useful for understanding the role of learning (including the learning with a teacher in the development of effective information representation and operations on them in artificial intelligence systems.

  12. Stone-Free-Rate After Extracorporeal Shockwave Lithotripsy in the Management of Pediatric Renal Stones in Lower Pole and Other Locations - A Comparative Study.

    Science.gov (United States)

    Iqbal, Nadeem; Muhammad, Shujah; Zafar, Warda; Tashfeen, Ravale; Faiz, Javaria; Hasan, Aisha; Hussain, Ijaz; Akhter, Saeed

    2016-11-01

    To determine a difference in the stone-free-rate among different renal locations in children after extracorporeal shockwave lithotripsy (ESWL). A descriptive study. Urology Department, Shifa International Hospital, Islamabad, Pakistan, from January 2007 to June 2015. The study included children who underwent ESWL, divided into three groups based on location of stones in kidney as group A (lower pole stones), group B (upper and mid pole stones) and group C (renal pelvis stone), respectively. ESWL was done by standard technique using Storz Modulith SLX lithotripter 3rd generation. Data was collected by chart review. SPSS version 16 was used for data analysis. Among 76 children with mean age of 7.55 ±4.16 years, 55 (72.4%) were males whereas 21 (27.6%) were females. Mean stone size was 1.08 ±0.59 cm. There were 34, 17 and 25 cases in groups A, B and C, respectively. Post- ESWL stone-free-rate was 47% in lower pole stones, 70.58% in upper and mid pole stones, and 68% in renal pelvis stones. Hematuria was seen in one patient from each group, sepsis in two patients from each of the mid pole/upper pole and lower pole group, while Steinstrasse in one patient from each group. ESWL is a safe and effective way of treating renal stones in all poles in pediatric population.

  13. Lunar Pole Illumination and Communications Maps Computed from GSSR Elevation Data

    Science.gov (United States)

    Bryant, Scott

    2009-01-01

    A Digital Elevation Model of the lunar south pole was produced using Goldstone Solar System RADAR (GSSR) data obtained in 2006.12 This model has 40-meter horizontal resolution and about 5-meter relative vertical accuracy. This Digital Elevation Model was used to compute average solar illumination and Earth visibility with 100 kilometers of the lunar south pole. The elevation data were converted into local terrain horizon masks, then converted into lunar-centric latitude and longitude coordinates. The horizon masks were compared to latitude, longitude regions bounding the maximum Sun and Earth motions relative to the moon. Estimates of Earth visibility were computed by integrating the area of the region bounding the Earth's motion that was below the horizon mask. Solar illumination and other metrics were computed similarly. Proposed lunar south pole base sites were examined in detail, with the best site showing yearly solar power availability of 92 percent and Direct-To-Earth (DTE) communication availability of about 50 percent. Similar analysis of the lunar south pole used an older GSSR Digital Elevation Model with 600-meter horizontal resolution. The paper also explores using a heliostat to reduce the photovoltaic power system mass and complexity.

  14. Features of Realization of Figurativeness in the Turkish Political Discourse of Oral Public Statements

    Directory of Open Access Journals (Sweden)

    Андрей Владимирович Штанов

    2016-12-01

    Full Text Available Article is devoted to features of realization of figurativeness in the Turkish political discourse of an oral public statement. As material for the analysis oral public statements of modern Turkish politicians have served. A research objective - to define language means at the expense of which figurativeness in the Turkish political discourse of an oral public statement is realized. In article the conclusion is drawn that the tripartite structure of an image unites signs of an initial subject, transfers them to a new subject, and the new word (phrase gains new value. Figurativeness is structural-semantic property of the word, in each word figurativeness is concluded. The thought that understanding by the recipient of figurative maintenance of a lexical unit and the communicative importance of the image realized in her show contexts is emphasized. Each figurative word and expression possesses the associative resources. Ability of the recipient to understand the right sense put in figurative lexicon depends on completeness of association. The concept of figurativeness is accompanied by concept of a metaforization. Figurative means of language in an oral public statement of the politician are a certain instrument of impact on audience with the purpose to influence vision of a political situation. In the Turkish political discourse of an oral public statement there are both universal, and cultural features of functioning of figurative language means. Figurativeness implementers in this research are understood as graphic means of language, namely a track, such as a metaphor, a metonymy, figurative comparison, the phraseological unit, an epifor and others.

  15. Pole-factorization theorem in quantum electrodynamics

    International Nuclear Information System (INIS)

    Stapp, H.P.

    1996-01-01

    In quantum electrodynamics a classical part of the S-matrix is normally factored out in order to obtain a quantum remainder that can be treated perturbatively without the occurrence of infrared divergences. However, this separation, as usually performed, introduces spurious large-distance effects that produce an apparent breakdown of the important correspondence between stable particles and poles of the S-matrix, and, consequently, lead to apparent violations of the correspondence principle and to incorrect results for computations in the mesoscopic domain lying between the atomic and classical regimes. An improved computational technique is described that allows valid results to be obtained in this domain, and that leads, for the quantum remainder, in the cases studied, to a physical-region singularity structure that, as regards the most singular parts, is the same as the normal physical-region analytic structure in theories in which all particles have non-zero mass. The key innovations are to define the classical part in coordinate space, rather than in momentum space, and to define there a separation of the photon-electron coupling into its classical and quantum parts that has the following properties: (1) The contributions from the terms containing only classical couplings can be summed to all orders to give a unitary operator that generates the coherent state that corresponds to the appropriate classical process, and (2) The quantum remainder can be rigorously shown to exhibit, as regards its most singular parts, the normal analytic structure. (orig.)

  16. The North Celestial Pole Monitoring Project

    Science.gov (United States)

    Blake, R. M.; Castelaz, M.; Phillips, J.

    2005-05-01

    In the past ten years a renaissance has occurred in the study of transient phenomena using small, dedicated optical telescopes. This has largely been driven by the successful detection of planetary transits with small telescopes (Henry et al. 2000) and the successful recovery of optical afterglows of gamma ray bursts (e.g. Halpern et al. 1997). The telescopes involved are designed to slew at rapid rates accurately across the sky when a burst alert occurs, or to study a single patch of sky to detect transits. We have constructed a dedicated robotic instrument to monitor the region within 4 degrees of the north celestial pole continuously every clear night. Using a sequence of short and long exposures the telescope collects data to conduct searches for transient and variable objects and monitor the Cepheid variable Polaris. Previous authors (Kamper et al. 1984; Evans et al. 1998) have observed Polaris to nearly cease its pulsation, a unique behavior for a Cepheid variable. Monitoring Polaris with high secular coverage should help explain this behavior. We describe here the design of the observatory, its operation and control systems and give preliminary examples of the data products from this unique project.

  17. Evidence of Space-Charge Effects in Thermal Poling

    DEFF Research Database (Denmark)

    Wu, X.; Arentoft, Jesper; Wong, D.

    1999-01-01

    The in situ thermal poling processes in germanosilicate fibers for positive and negative poling voltages are significantly different. Thermal poling of silica fibers consists of two processes: the faster linear process of charge migration and the subsequent single exponential process of charge...... ionization. Both the shielding electrical field due to charge migration and the ionization electrical field due to charge ionization are able to be frozen-in at room temperature acid lead to the residual linear electrooptic effects, The observations support that the mechanism of the induced electrooptic...... effects is based on space charge electrical fields instead of dipole/bond orientation....

  18. String figures as mathematics? an anthropological approach to string figure-making in oral tradition societies

    CERN Document Server

    Vandendriessche, Eric

    2015-01-01

    This book addresses the mathematical rationality contained in the making of string figures. It does so by using interdisciplinary methods borrowed from anthropology, mathematics, history and philosophy of mathematics. The practice of string figure-making has long been carried out in many societies, and particularly in those of oral tradition. It consists in applying a succession of operations to a string (knotted into a loop), mostly using the fingers and sometimes the feet, the wrists or the mouth. This succession of operations is intended to generate a final figure. The book explores differ

  19. Transient eastward-propagating long-period waves observed over the South Pole

    Directory of Open Access Journals (Sweden)

    S. E. Palo

    Full Text Available Observations of the horizontal wind field over the South Pole were made during 1995 using a meteor radar. These data have revealed the presence of a rich spectrum of waves over the South Pole with a distinct annual occurrence. Included in this spectrum are long-period waves, whose periods are greater than one solar day, which are propagating eastward. These waves exhibit a distinct seasonal occurrence where the envelope of wave periods decreases from a period of 10 days near the fall equinox to a minimum of 2 days near the winter solstice and then progresses towards a period near 10 days at the spring equinox. Computation of the meridional gradient of quasi-geostrophic potential vorticity has revealed a region in the high-latitude upper mesosphere which could support an instability and serve as a source for these waves. Estimation of the wave periods which would be generated from an instability in this region closely resembles the observed seasonal variation in wave periods over the South Pole. These results are consistent with the hypothesis that the observed eastward propagating long-period waves over the South Pole are generated by an instability in the polar upper mesosphere. However, given our limited data set we cannot rule out a stratospheric source. Embedded in this spectrum of eastward propagating waves during the austral winter are a number of distinct wave events. Eight such wave events have been identified and localized using a constant-Q filter bank. The periods of these wave events ranges from 1.7 to 9.8 days and all exist for at least 3 wave periods. Least squares analysis has revealed that a number of these events are inconsistent with a wave propagating zonally around the geographic pole and could be related to waves propagating around a dynamical pole which is offset from the geographic pole. Additionally, one event which was observed appears to be a standing oscillation.

    Key words. Meteorology and atmospheric

  20. PopZ identifies the new pole, and PodJ identifies the old pole during polar growth in Agrobacterium tumefaciens.

    Science.gov (United States)

    Grangeon, Romain; Zupan, John R; Anderson-Furgeson, James; Zambryski, Patricia C

    2015-09-15

    Agrobacterium tumefaciens elongates by addition of peptidoglycan (PG) only at the pole created by cell division, the growth pole, whereas the opposite pole, the old pole, is inactive for PG synthesis. How Agrobacterium assigns and maintains pole asymmetry is not understood. Here, we investigated whether polar growth is correlated with novel pole-specific localization of proteins implicated in a variety of growth and cell division pathways. The cell cycle of A. tumefaciens was monitored by time-lapse and superresolution microscopy to image the localization of A. tumefaciens homologs of proteins involved in cell division, PG synthesis and pole identity. FtsZ and FtsA accumulate at the growth pole during elongation, and improved imaging reveals FtsZ disappears from the growth pole and accumulates at the midcell before FtsA. The L,D-transpeptidase Atu0845 was detected mainly at the growth pole. A. tumefaciens specific pole-organizing protein (Pop) PopZAt and polar organelle development (Pod) protein PodJAt exhibited dynamic yet distinct behavior. PopZAt was found exclusively at the growing pole and quickly switches to the new growth poles of both siblings immediately after septation. PodJAt is initially at the old pole but then also accumulates at the growth pole as the cell cycle progresses suggesting that PodJAt may mediate the transition of the growth pole to an old pole. Thus, PopZAt is a marker for growth pole identity, whereas PodJAt identifies the old pole.

  1. Figuration of tourist personality and tourist travels

    Directory of Open Access Journals (Sweden)

    Đorđević Saša

    2013-01-01

    Full Text Available Quality of tourist travel is a relative category, because its success depends on the subjective perception of the personality of tourists on a tourist trip. For this reason, any tourist trip can be treated from the perspective of different types of figurative forms of tourists' personality, which also determine different quality of tourist travel, which, in turn, makes them different. Thus, any tourist trip, unto itself, has its own uniqueness, taking on the forms and content created, for the most part, by the tourists themselves, along with all other tourism stakeholders involved in this process. These forms and contents are primarily conditioned by the spiritual profile of tourists' personality and their psychological and motivational preferences, which is symbolically represented in the figurative context of a chess game. In addition to this, identification of essential characteristics of different spiritual profiles of tourist's personality, must be a starting point for the programming of overall content and especially of animation and cultural content.

  2. Ambiguous Authorities: Vertigo and the Auteur Figure

    Directory of Open Access Journals (Sweden)

    Isabelle Licari-Guillaume

    2017-12-01

    Full Text Available This article examines authorial performance in the context of DC’s Vertigo line. In the 1990s, Vertigo gained its reputation as an innovative and progressive imprint by promoting the work of British scriptwriters, who were hailed as true author figures, despite the inherently collaborative nature of the mainstream comics industry. In a manner reminiscent of “auteur theory”, writers such as Neil Gaiman, Warren Ellis or Grant Morrison developed attractive author personas which they consistently displayed through interviews, letter columns or social media, but also, more importantly, by inserting their avatars within the comics they scripted. Upon closer examination, however, it becomes clear that their work in fact simultaneously asserts and destabilizes writerly authority, in a manner that is consistent with Linda Hutcheon’s view of postmodernity. By multiplying author figures and playfully disseminating authority, Vertigo authors question their own authorial control over the text, asserting instead the crucial role played by the reader.

  3. Figure correction of multilayer coated optics

    Science.gov (United States)

    Chapman; Henry N. , Taylor; John S.

    2010-02-16

    A process is provided for producing near-perfect optical surfaces, for EUV and soft-x-ray optics. The method involves polishing or otherwise figuring the multilayer coating that has been deposited on an optical substrate, in order to correct for errors in the figure of the substrate and coating. A method such as ion-beam milling is used to remove material from the multilayer coating by an amount that varies in a specified way across the substrate. The phase of the EUV light that is reflected from the multilayer will be affected by the amount of multilayer material removed, but this effect will be reduced by a factor of 1-n as compared with height variations of the substrate, where n is the average refractive index of the multilayer.

  4. Energy in Sweden. Facts and figures 2004

    International Nuclear Information System (INIS)

    2004-12-01

    Energy in Sweden 2004: Facts and Figures contains the tabular data for most of the diagrams in the main publication. These data consist primarily of the results of the Agency's processing of basic data from Statistics Sweden. Facts and Figures is available at www.stem.se in pdf- and excel file formats. Since the year 2001 statistics for the period 1983-1998 are revised compared to data for previous editions. With effect from the 2001 edition, statistics are of preliminary character for the two preceding years. Breakdowns into certain types of fuels vary somewhat depending on whether preliminary or final data has been used. Further information about the statistics can be found in Energy in Sweden, chapter 8 Energy Facts.

  5. Figure and finish of grazing incidence mirrors

    International Nuclear Information System (INIS)

    Takacs, P.Z.; Church, E.L.

    1989-08-01

    Great improvement has been made in the past several years in the quality of optical components used in synchrotron radiation (SR) beamlines. Most of this progress has been the result of vastly improved metrology techniques and instrumentation permitting rapid and accurate measurement of the surface finish and figure on grazing incidence optics. A significant theoretical effort has linked the actual performance of components used as x-ray wavelengths to their topological properties as measured by surface profiling instruments. Next-generation advanced light sources will require optical components and systems to have sub-arc second surface figure tolerances. This paper will explore the consequences of these requirements in terms of manufacturing tolerances to see if the present manufacturing state-of-the-art is capable of producing the required surfaces. 15 refs., 14 figs., 2 tabs

  6. Energy: facts and figures in 2006

    International Nuclear Information System (INIS)

    Lavergne, R.; Nanot, B.; Scherrer, S.; Paquel, V.; Louati, S.; Thienard, H.

    2007-01-01

    The consumption of final energy in France in 2006 increased slightly on the whole (+0.6%) and in all sectors except the industry (-0.7%). The final energy consumption is defined as the difference between the total consumption of primary energy and the consumption of the energy production sector. The evolution of the consumption of final energy is different according to the type of energy: +4.1% for coal (due to the strong demand in the iron and steel industry), +3.6% for renewable energies (due to specific development programs), +1.5% for electrical power and no change for oil and natural gas. Despite high prices, sales of car fuels rose by 0.4%, this figure hides the fact that the sales of fuels for diesel cars rose by 2.7% (because of the growing population of diesel cars) while those of grade petrol kept on plummeting (-5.9%). It is important to note that the releases of CO 2 due to energy went down by -1.4% in 2006. The energy bill increased by +18.5% to fetch 46.2*10 9 euros despite the decrease of the imported volumes. This articles details the energy figures for France in 2006 and sheds light particularly on 3 aspects: first, the annual trends in energy since 1973, secondly, the energy bill and thirdly the figures for electricity, natural gas, solid mineral fuels, hydrocarbons and renewable sources of energy. (A.C.)

  7. 78 FR 25577 - Safety Zone, Figure Eight Causeway Channel; Figure Eight Island, NC

    Science.gov (United States)

    2013-05-02

    ... a private wedding. This action is necessary to protect the life and property of the maritime public... support of a private wedding over the waters of the Figure Eight Causeway Channel. The fireworks will be...

  8. Characterization of Periodically Poled Nonlinear Materials Using Digital Image Processing

    National Research Council Canada - National Science Library

    Alverson, James R

    2008-01-01

    .... A new approach based on image processing across an entire z+ or z- surface of a poled crystal allows for better quantification of the underlying domain structure and directly relates to device performance...

  9. POLE mutations in families predisposed to cutaneous melanoma

    DEFF Research Database (Denmark)

    Aoude, Lauren G; Heitzer, Ellen; Johansson, Peter

    2015-01-01

    Germline mutations in the exonuclease domain of POLE have been shown to predispose to colorectal cancers and adenomas. POLE is an enzyme involved in DNA repair and chromosomal DNA replication. In order to assess whether such mutations might also predispose to cutaneous melanoma, we interrogated...... whole-genome and exome data from probands of 34 melanoma families lacking pathogenic mutations in known high penetrance melanoma susceptibility genes: CDKN2A, CDK4, BAP1, TERT, POT1, ACD and TERF2IP. We found a novel germline mutation, POLE p.(Trp347Cys), in a 7-case cutaneous melanoma family....... Functional assays in S. pombe showed that this mutation led to an increased DNA mutation rate comparable to that seen with a Pol ε mutant with no exonuclease activity. We then performed targeted sequencing of POLE in 1243 cutaneous melanoma cases and found that a further ten probands had novel or rare...

  10. New tilted-poles Wien filter with enhanced performance

    Science.gov (United States)

    Leal-Quiros, E.; Prelas, M. A.

    1989-03-01

    The Wien filter is an E×B deflecting analyzer with the electrostatic field perpendicular to the magnetostatic field. The twofold functions of the Wien filter are as an energy analyzer as well as a mass analyzer. It has very high resolution for paraxial charged-particle beams with V=E/B, the Wien velocity. Two Wien filters, a tilted-poles Wien filter, and a classical parallel-rectangular-poles Wien filter were built and tested for electrons up to 3.5 keV and protons beams of 200 eV. (The tilted-poles Wien filter is a new diagnostic developed by the authors.) The performance of the two is compared, and the tilted-poles Wien filter has superior resolution to the classical Wien filter. Both Wien filters appear to have features useful for high-temperature plasma diagnostics, including simultaneous measurement of energy and mass spectra, and high resolution.

  11. New tilted-poles Wien filter with enhanced performance

    Energy Technology Data Exchange (ETDEWEB)

    Leal-Quiros, E.; Prelas, M.A.

    1989-03-01

    The Wien filter is an E x B deflecting analyzer with the electrostatic field perpendicular to the magnetostatic field. The twofold functions of the Wien filter are as an energy analyzer as well as a mass analyzer. It has very high resolution for paraxial charged-particle beams with V = E/B, the Wien velocity. Two Wien filters, a tilted-poles Wien filter, and a classical parallel-rectangular-poles Wien filter were built and tested for electrons up to 3.5 keV and protons beams of 200 eV. (The tilted-poles Wien filter is a new diagnostic developed by the authors.) The performance of the two is compared, and the tilted-poles Wien filter has superior resolution to the classical Wien filter. Both Wien filters appear to have features useful for high-temperature plasma diagnostics, including simultaneous measurement of energy and mass spectra, and high resolution.

  12. Pacific Albacore Troll and Pole-and-line Fisheries

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The North Pacific and South Pacific Albacore Troll and Pole-and-line Fisheries project contains landings, logbooks, and size composition data from U.S.A. troll and...

  13. Micrometeorites from the South Pole Water Well, Version 1

    Data.gov (United States)

    National Aeronautics and Space Administration — Micrometeorites dated between 1100 A.D. to 1500 A.D. were collected from the bottom of the South Pole Water Well in December 1995. Element analyses of 181 cosmic...

  14. Detection of Cavities Using Pole-Dipole Resistivity Technique

    OpenAIRE

    Elawadi, Eslam; El-Qady, Gad; Salem, Ahmed; Ushijima, Keisuke

    2001-01-01

    Using pole-dipole array, electrical resistivity survey was conducted to investigate the subsurface under a subsiding building located in Kita Kyushu area, Japan. The resistivity measurements were acquired along two traverse lines and interpreted using a g

  15. Methane Isotopes in South Pole Firn Air, 2008, Version 1

    Data.gov (United States)

    National Aeronautics and Space Administration — This data set contains depth profiles for delta carbon-13 (δ13C) and delta deuterium (δD) of methane (CH4) in South Pole firn air. The investigators obtained air...

  16. South Pole Snow Pit, 1988 and 1989, Version 1

    Data.gov (United States)

    National Aeronautics and Space Administration — Information from 6-meter snow pits dug close to the South Pole in austral summer 1988-1989 by the Glacier Research Group of the University of New Hampshire (location...

  17. Dynamic Electromechanical Characterization of Axially Poled PZT 95/5

    International Nuclear Information System (INIS)

    Chhabildas, Lalit C.; Furnish, Michael D.; Montgomery, Stephen T.; Setchell, Robert E.

    1999-01-01

    We are conducting a comprehensive experimental study of the electromechanical behavior of poled PZT 95/5 (lead zirconate titanate). As part of this study, eight plane-wave tests have been conducted on axially poled PZT 95/5 at stress levels ranging from 0.9 to 4.6 GPa, using VISAR and electrical diagnostics. Observed wave velocities were slightly decreased from ultrasonic velocity, by contrast' with unpoled samples. Compression waveforms show a step at 0.6 GPa more marked than for normally poled or unpoled samples; this may correspond to a poling effect on the ferroelectric/antiferroelectric transition. A similar step is observed on release. The released charge upon loading to 0.9 GPa is consistent with nearly complete depoling. Loading to higher stresses gave lower currents (factor of 10), suggesting shock-induced conductivity or electrical breakdown

  18. Multijet final states: exact results and the leading pole approximation

    International Nuclear Information System (INIS)

    Ellis, R.K.; Owens, J.F.

    1984-09-01

    Exact results for the process gg → ggg are compared with those obtained using the leading pole approximation. Regions of phase space where the approximation breaks down are discussed. A specific example relevant for background estimates to W boson production is presented. It is concluded that in this instance the leading pole approximation may underestimate the standard QCD background by more than a factor of two in certain kinematic regions of physical interest

  19. Second-harmonic scanning optical microscopy of poled silica waveguides

    DEFF Research Database (Denmark)

    Pedersen, Kjeld; Bozhevolnyi, Sergey I.; Arentoft, Jesper

    2000-01-01

    Second-harmonic scanning optical microscopy (SHSOM) is performed on electric-field poled silica-based waveguides. Two operation modes of SHSOM are considered. Oblique transmission reflection and normal reflection modes are used to image the spatial distribution of nonlinear susceptibilities...... and limitations of the two operation modes when used for SHSOM studies of poled silica-based waveguides are discussed. The influence of surface defects on the resulting second-harmonic images is also considered. ©2000 American Institute of Physics....

  20. International Youth Conference on the Poles

    Science.gov (United States)

    Church, A. K.; Kuhn, T. S.; Baeseman, J.; Garmulewicz, A.; Raymond, M.; Salmon, R.

    2006-12-01

    The International Polar Year (IPY) is an international effort, involving more than 50 countries, to focus research in both the sciences and social sciences on the world's Polar Regions. In order to secure youth involvement in the IPY, the Youth Steering Committee (YSC) has been formed, aiming specifically to network young polar researchers from all backgrounds enabling collaboration and to involve this group in outreach focused towards other young people. A conference targeted directly at an audience of early career researchers and international youth will be central to fulfilling these aims. The YSC has therefore developed the concept of the International Youth Conference on the Poles (IYCP). Proposed for 2008, this conference will bring together youth from a diverse set of backgrounds and nationalities to discuss the issues affecting the Polar Regions, their effects on a global scale and ways of addressing these issues. The conference will also serve to highlight ongoing IPY research, especially research being undertaken by young researchers, and provide a perennial framework for youth involvement in polar research and policies. The IYCP will run for three days in May 2008, attracting an international youth audience, as well as representatives from polar organizations, teachers, politicians, policy makers, the general public and media. The IYCP will be divided into three sections. Youth Roundtable Discussions will bring youth together to discuss issues affecting the Polar Regions and potential solutions to these. A Young Researchers Conference will provide the opportunity for young researchers working in the Polar Regions to present their work to an interdisciplinary audience. The Polar Fair will provide an interactive environment for youth to learn about the Polar Regions. The IYCP will be of great importance to the IPY because it will serve as the principle venue during the Polar Year where youth from many different disciplines, backgrounds and countries will

  1. Strategi Pengembangan Daerah Growth Pole melalui Pemanfaatan Potensi Lokal

    Directory of Open Access Journals (Sweden)

    Rusdarti Rusdarti

    2016-12-01

    Full Text Available This research aims to determine the leading sectors that could be developed in each district in Cilacap Regency as a growth pole area. We use location quotient, shift share, and klassen typology as analysis methods. The research results show that not all of the district at Cilacap regency have a leading sector. Further, districts that have leading sectors are as follows. Wanareja only has a leading sector, i.e. agriculture. Secondly, Kawunganten has two leading sectors, agriculture and finance, rent, and company services. Thirdly, Agriculture becomes the only leading sector of Kampung Laut District. Fourthly, Mining and extraction are the leading sectors of Kesugihan District. Fifthly, Sampang District has buildings and finance sectors as the leading sectors. Sixthly, Kroya District leads in trade, hotel, and restaurant sectors. Seventhly, South Cilacap District leads in mining and extraction sectors. Eighthly, Central Cilacap District has manufacturing, electricity, gas and clean water, building and services as leading sectors. Lastly, North Cilacap District has electricity, gas and clean water, manufacturing, building and services as leading sectors. Abstrak   Tujuan dari penelitian ini adalah menentukan sektor unggulan yang dapat dikembangkan di tiap kecamatan di Kabupaten Cilacap sebagai salah satu daerah growth pole. Alat analisis yang digunakan dalam penelitian ini yaitu location quotient, shift share dan klassen typologi. Hasil penelitian menunjukkan tidak semua kecamatan di kabupaten Cilacap memiliki sektor unggulan. Beberapa daerah yang memiliki sektor unggulan diantaranya adalah  Kecamatan Wanareja hanya memiliki satu sektor unggulan yaitu pertanian. Kedua adalah Kecamatan Kawunganten memiliki dua sektor unggulan yaitu sektor pertanian dan sektor keuangan, persewaan dan jasa perusahaan. Kecamatan Kampung Laut, dimana sektor pertanian pada kecamatan ini sangatlah unggul. Kecamatan kesugihan juga memiliki satu sektor unggulan yaitu

  2. Linking Atmospheric Pollution to Cryospheric Changes over the Third Pole

    Science.gov (United States)

    Kang, S.; Zhang, Q.; Ji, Z.; Li, Y.; Chen, J.; Zhang, G.; Li, C.; Cong, Z.; Chen, P.; Guo, J.; Huang, J.; Tripathee, L.; Rupakheti, D.; Li, X.; Zhang, Y.; Panday, A. K.; Rupakheti, M.

    2016-12-01

    Known as "the Third Pole" (TP), the Tibetan Plateau and surrounding mountains hold the largest aggregate of glaciers outside the pole regions. Recent monitoring and projection indicated an accelerated glacier decline and increasing glacier runoff. The long-range transport of South Asian atmospheric pollutants, including light absorbing impurities (LAIs) such as black carbon (BC) and mineral dust (MD), can absorb the solar radiation in the atmosphere and reduce albedo after being deposited onto the cryosphere, thereby promoting glacier and snow melt. A coordinated atmospheric pollution monitoring network has been launched covering the TP with emphasis on trans-Himalayan transects since 2013. TSP were collected for 24h at an interval of 3-6 days. BC/OC, polycyclic aromatic hydrocarbons (PAHs) and heavy metals were measured. Results reveal a consistent decrease in almost all analyzed parameters from south to north across the Himalayas. Geochemical signatures of carbonaceous aerosols indicate dominant sources of biomass burning and vehicle exhaust, in line with results of PAHs. Integrated analysis of satellite images and air mass trajectories suggest that the trans-boundary air pollution occurred episodically and concentrated in pre-monsoon seasons via upper air circulation, through-valley wind, and local convection. Simulation results showed that carbonaceous aerosols produced positive/negative shortwave radiative forcing in the atmosphere/ground surface. Aerosols increased surface air temperatures by 0.1-0.5° over the TP and decreased temperatures in South Asia during the monsoon season. Surface snow/ice samples were collected from benchmark glaciers to estimate the impacts of LAIs on glacier melt with model assistance. BC (37%) and MD (32%) contribute to the summer melting of Laohugou Glacier in the northern TP. MD (38%) contributed more glacier melt than BC (11%) on Zhadang Glacier in the southern TP. In the southeastern TP, BC and MD contribute to 30% of the

  3. Children's Drawing of Human Figure Analisis

    Directory of Open Access Journals (Sweden)

    Salko Pezo

    2011-08-01

    Full Text Available Beside speech, that helps children to express their feelings and experiences, establish relations with people, the drawing is one of the most truthful ways of its expression. In this paper the results of pleasant and unpleasant emo­tions among children through drawing of human figure are presented. The survey is conducted on 634 children, and the results indicate that there is difference in expressing negative emotions between boys and girls, while at expressing pleasant emotions the results are similar.

  4. Theories of figures of celestial bodies

    CERN Document Server

    Jardetzky, Wenceslas S

    2005-01-01

    Everything in the universe rotates: the meteors, the asteroids, the planets and their satellites, the sun, the stars, the clusters and nebulae, even the galaxies themselves. The problem of the shape of a rotating body is therefore universal in astronomy. Its treatment in this book, which deals with the figures of equilibrium and distortions of rotating bodies, is full and rigorous.Suitable for upper-level undergraduates and graduate students, this text was written by a renowned researcher and educator who taught at Columbia University and served for many years as a research associate at the La

  5. Distinguished figures in mechanism and machine science

    CERN Document Server

    2014-01-01

    This book is composed of chapters that focus specifically on technological developments by distinguished figures in the history of MMS (Mechanism and Machine Science).  Biographies of well-known scientists are also included to describe their efforts and experiences, and surveys of their work and achievements, and a modern interpretation of their legacy are presented. After the first two volumes, the papers in this third volume again cover a wide range within the field of the History of Mechanical Engineering with specific focus on MMS and will be of interest and motivation to the work (historical or not) of many.

  6. Atmospheric Fluctuations in the Millimeter Wavelength at the South Pole

    Science.gov (United States)

    Bussmann, R. S.; Holzapfel, W.; Kuo, C. L.

    2003-12-01

    We characterize atmospheric fluctuations by a Kolmogorov power law around the South pole at Millimeter wavelengths by calculating the correlation between signals coming from two separate channels in a detector array. We use data taken with the ACBAR instrument mounted on the Viper telescope over the winter period beginning in April 2002 and ending in August 2002 to generate a model of the atmospheric fluctuations. We use this model to obtain values for the amplitude of the atmospheric fluctuations as well as the angular windspeed causing the movement of the disturbances which are responsible for the emission we observe. The primary benefit of the correlation analysis is to significantly reduce contribution from instrument noise, which is uncorrelated between two channels. Thus we are able to perform a very reliable characterization of the atmosphere. ACBAR was supported by funds from the Center for Astrophysical Research in Antarctica, a National Science Foundation Science and Technology Center. Operational support was provided by the United States Antarctic Program.

  7. Figures of merit for measuring aging management program effectiveness

    International Nuclear Information System (INIS)

    Knudson, R.; Sciacca, F.; Walsh, R.; Zigler, G.

    1991-01-01

    One of the requirements for nuclear plant license renewal may be the establishment and demonstration of an effective aging management program. An analysis of both qualitative and quantitative information will be required to define the contents of this aging management program. The authors propose two quantitative figures of merit, Mean Event Detection Frequency and Mean Renewal Rate, that can be used to compare the effectiveness of various inspection, surveillance, test, and monitoring (ISTM) activities for aging mitigation. An example showing the relative effectiveness of an enhanced Loose Parts Monitoring System with current ISTM activities for steam generators and reactor internals is provided. (author)

  8. Pentachlorophenol (PCP) in soils adjacent to in-service utility poles in New York State. Final report

    International Nuclear Information System (INIS)

    1995-03-01

    The Electric Power Research Institute (EPRI) is studying the environmental impact of preservatives associated with in-service utility poles. As part of this endeavor, two EPRI contractors META Environmental, Inc. (META) and Atlantic Environmental Services, Inc. (Atlantic), are collecting soil samples from around wood utility poles nationwide, for various chemical and physical analyses. This report covers the results for 31 pole sites in the State of New York. These included a range of soil types, wood types, pole sizes, and in-service ages. Approximately 40 to 50 soil samples were collected from each wood pole site in this study, and were analyzed for chlorinated phenols, particularly pentachlorophenol (PCP), and total petroleum hydrocarbons (TPH), as well as physical/chemical parameters, such as pH, total organic carbon (TOC), and cationic exchange capacity (CEC). Additional samples were used in studies to determine biological degradation rates, soil-water distribution coefficients, and retardation coefficients of PCP in soils. Methods of analysis followed standard EPA and ASTM procedures, with some modifications in the chemical analyses to enable the efficient processing of many samples with sufficiently low detection limits for this study. All chemical, physical, and site-specific data were stored in a relational computer database

  9. Efficacy of the lithotripsy in treating lower pole renal stones.

    Science.gov (United States)

    Cui, Helen; Thomee, Eeke; Noble, Jeremy G; Reynard, John M; Turney, Benjamin W

    2013-06-01

    Use of extracorporeal lithotripsy is declining in North America and many European countries despite international guidelines advocating it as a first-line therapy. Traditionally, lithotripsy is thought to have poor efficacy at treating lower pole renal stones. We evaluated the success rates of lithotripsy for lower pole renal stones in our unit. 50 patients with lower pole kidney stones ≤15 mm treated between 3/5/11 and 19/4/12 were included in the study. Patients received lithotripsy on a fixed-site Storz Modulith SLX F2 lithotripter according to a standard protocol. Clinical success was defined as stone-free status or asymptomatic clinically insignificant residual fragments (CIRFs) ≤3 mm at radiological follow-up. The mean stone size was 7.8 mm. The majority of stones (66 %) were between 5 and 10 mm. 28 % of stones were between 10 and 15 mm. For solitary lower pole stones complete stone clearance was achieved in 63 %. Total stone clearance including those with CIRFs was achieved in 81 % of patients. As expected, for those with multiple lower pole stones the success rates were lower: complete clearance was observed in 39 % and combined clearance including those with CIRFs was 56 %. Overall, complete stone clearance was observed in 54 % of patients and clearance with CIRFs was achieved in 72 % of patients. Success rate could not be attributed to age, stone size or gender. Our outcome data for the treatment of lower pole renal stones (≤15 mm) compare favourably with the literature. With this level of stone clearance, a non-invasive, outpatient-based treatment like lithotripsy should remain the first-line treatment option for lower pole stones. Ureteroscopy must prove that it is significantly better either in terms of clinical outcome or patient satisfaction to justify replacing lithotripsy.

  10. Optimal pole shifting controller for interconnected power system

    International Nuclear Information System (INIS)

    Yousef, Ali M.; Kassem, Ahmed M.

    2011-01-01

    Research highlights: → Mathematical model represents a power system which consists of synchronous machine connected to infinite bus through transmission line. → Power system stabilizer was designed based on optimal pole shifting controller. → The system performances was tested through load disturbances at different operating conditions. → The system performance with the proposed optimal pole shifting controller is compared with the conventional pole placement controller. → The digital simulation results indicated that the proposed controller has a superior performance. -- Abstract: Power system stabilizer based on optimal pole shifting is proposed. An approach for shifting the real parts of the open-loop poles to any desired positions while preserving the imaginary parts is presented. In each step of this approach, it is required to solve a first-order or a second-order linear matrix Lyapunov equation for shifting one real pole or two complex conjugate poles, respectively. This presented method yields a solution, which is optimal with respect to a quadratic performance index. The attractive feature of this method is that it enables solutions of the complex problem to be easily found without solving any non-linear algebraic Riccati equation. The present power system stabilizer is based on Riccati equation approach. The control law depends on finding the feedback gain matrix, and then the control signal is synthesized by multiplying the state variables of the power system with determined gain matrix. The gain matrix is calculated one time only, and it works over wide range of operating conditions. To validate the power of the proposed PSS, a linearized model of a simple power system consisted of a single synchronous machine connected to infinite bus bar through transmission line is simulated. The studied power system is subjected to various operating points and power system parameters changes.

  11. Effect of Dangling Bonds on De-Poling Time for Polymeric Electric Field Optical Sensors

    Directory of Open Access Journals (Sweden)

    Amir R. Ali

    2018-01-01

    Full Text Available This paper investigates the possible chemical changes in polydimethylsiloxane (PDMS caused by two different techniques of fabrication for ultra-sensitive electric field optical sensors. The sensing element is a micro-sphere made from 60:1 PDMS (60 parts base silicon elastomer to one part polymer curing agent by volume. The measurement principle is based on the morphology dependent resonances (MDR shifts of the micro-sphere. We present the effects of curing and poling of polymer micro-spheres used as optical sensors. The degree of curing leads to changes in the de-poling time which results from dangling bonds in the polymeric chains. Consequently, the longevity of the sensitivity of the sensor can extended by two orders of magnitude. An analysis is carried out along with preliminary experiments to investigate that behavior.

  12. Hybrid excited claw pole generator with skewed and non-skewed permanent magnets

    Science.gov (United States)

    Wardach, Marcin

    2017-12-01

    This article contains simulation results of the Hybrid Excited Claw Pole Generator with skewed and non-skewed permanent magnets on rotor. The experimental machine has claw poles on two rotor sections, between which an excitation control coil is located. The novelty of this machine is existence of non-skewed permanent magnets on claws of one part of the rotor and skewed permanent magnets on the second one. The paper presents the construction of the machine and analysis of the influence of the PM skewing on the cogging torque and back-emf. Simulation studies enabled the determination of the cogging torque and the back-emf rms for both: the strengthening and the weakening of magnetic field. The influence of the magnets skewing on the cogging torque and the back-emf rms have also been analyzed.

  13. Hybrid excited claw pole generator with skewed and non-skewed permanent magnets

    Directory of Open Access Journals (Sweden)

    Wardach Marcin

    2017-12-01

    Full Text Available This article contains simulation results of the Hybrid Excited Claw Pole Generator with skewed and non-skewed permanent magnets on rotor. The experimental machine has claw poles on two rotor sections, between which an excitation control coil is located. The novelty of this machine is existence of non-skewed permanent magnets on claws of one part of the rotor and skewed permanent magnets on the second one. The paper presents the construction of the machine and analysis of the influence of the PM skewing on the cogging torque and back-emf. Simulation studies enabled the determination of the cogging torque and the back-emf rms for both: the strengthening and the weakening of magnetic field. The influence of the magnets skewing on the cogging torque and the back-emf rms have also been analyzed.

  14. Análisis de la figura humana en niños y niñas desplazados en Colombia (analysis of the human figure in displaced children in Colombia

    Directory of Open Access Journals (Sweden)

    José Alonso Andrade Salazar

    2015-01-01

    Full Text Available Resumen: Esta es una investigación exploratoria cuyo objetivo es analizar las características psicológicas proyectadas en el dibujo de la figura humana en 45 niños y niñas en situación de desplazados en Colombia. El estudio se ha realizó en el departamento del Quindío, a partir de la aplicación del Test del Dibujo de la Figura Humana de Karen Machover a niños y niñas en situación de desplazamiento forzado. Muchos niños y niñas presentan problemas de ajuste a los nuevos entornos de socialización como efecto de las secuelas del conflicto armado evidentes en áreas conflictivas proyectadas en el dibujo tales como cabeza, expresiones faciales, extremidades, tronco y escases de movimiento. El conflicto persiste de formas simbólicas en los niños y niñas, lo cual dificulta sus habilidades sociales, la relación intrafamiliar y el aprendizaje, mostrando en muchos casos reacciones defensivas tales como, elevados niveles de ansiedad, depresión, ensimismamiento, al igual que impulsividad, agresión y aptitudes desafiantes Abstract: This is an exploratory research that aims to analyze the psychological characteristics in analyzing the human figure in 45 displaced children in Colombia. The study was conducted in the State of Quindío, based on the application of the Karen Machover - Human Figure Drawing Test to children in a situation of forced displacement. Many children experience problems adjusting to new environments of socialization as a result of the aftermath of the armed conflict, which are made evident in conflict areas projected in the drawing, such as head, facial expressions, limbs, trunk and scarcity of movement. The conflict persists of symbolic forms in children, which hinders their social skills, family relationship and learning, showing in many cases defensive reactions such as high levels of anxiety, depression and self-absorption, as well as impulsivity, aggression, and challenging abilities

  15. Building on IPY Data, Collaborations and Infrastructure to Understand the Changing Poles (Invited)

    Science.gov (United States)

    Bell, R. E.; Krupnik, I.; Hik, D.; Alverson, K. D.; Drinkwater, M. R.

    2010-12-01

    In contrast to previous IPY programs that were driven by a central organizing group, the 2007-9 IPY emerged from more than 1000 ideas provided by the global science community. This global IPY planning process produced six major themes that framed the IPY programs. Three themes focused on change at the poles, one focused on probing the frontiers of the polar science, one targeted on using the polar regions as vantage points to look beyond into space and a sixth theme targeted integrated studies of polar cultural, historical and social processes. The results of the IPY 2007-9 are just beginning to emerge. Benchmark data sets were acquired such as coordinated imaging of the poles from space, systematic ocean measurements and a census of marine life. IPY programs have documented how ongoing polar change from permafrost to ecosystems varies regionally depending on local conditions. Analysis of past change in ecosystems, sediment cores and numeric models indicate that during periods with elevated temperatures and atmospheric CO2, the West Antarctic ice sheet can collapse repeatedly. Studies of the polar oceans have confirmed a strong connection between the mid-latitudes and polar processes. The efforts to explore the poles have revealed explosive volcanism beneath the Arctic Ocean, strong genetic similarities between microbes at the two poles and dynamic processes at the base of the East Antarctic ice sheet. IPY programs looking beyond the poles imaged new galaxies and identified new linkages between solar output and weather. The early insights from IPY 2007-9 are remarkable. Building on these will be a challenge for the science community and science agencies over the next decade. The IPY data must be archived and made available to the broad science community to ensure it is preserved as a vital benchmark. The collaborations between scientists, agencies, Arctic residents and institutions initiated by the IPY structure must be fostered and continued. Successful scientific

  16. Effect of pole number and slot number on performance of dual rotor permanent magnet wind power generator using ferrite magnets

    Directory of Open Access Journals (Sweden)

    Peifeng Xu

    2017-05-01

    Full Text Available Dual rotor permanent magnet (DRPM wind power generator using ferrite magnets has the advantages of low cost, high efficiency, and high torque density. How to further improve the performance and reduce the cost of the machine by proper choice of pole number and slot number is an important problem to be solved when performing preliminarily design a DRPM wind generator. This paper presents a comprehensive performance comparison of a DRPM wind generator using ferrite magnets with different slot and pole number combinations. The main winding factors are calculated by means of the star of slots. Under the same machine volume and ferrite consumption, the flux linkage, back-electromotive force (EMF, cogging torque, output torque, torque pulsation, and losses are investigated and compared using finite element analysis (FEA. The results show that the slot and pole number combinations have an important impact on the generator properties.

  17. Analyses of the Short Periodical Part of the Spectrum of Pole Coordinate Variations Determined by the Astrometric and Laser Technique

    Science.gov (United States)

    Kołaczek, B.; Kosek, W.; Galas, R.

    Series of BIH astrometric (BIH-ASTR) pole coordinates and of CSR LAGEOS laser ranging (CSR-LALAR) pole coordinates determined in the MERIT Campaign in the years 1972 - 1986, 1983 - 1986, respectively, have been filtered by different band pass filters consisting of the law pass Gauss filter and of the high pass Butterworth filter. Filtered residuals were analysed by the MESA-Maximum Entropy Spectra Analysis and by the Ormsby narrow band pass filters in order to find numerically modeled signals approximating these residuals in the best way.

  18. Dissection of Drosophila Visual Circuits Implicative in Figure Motion

    Science.gov (United States)

    Kelley, Ross G.

    The Drosophila visual system offers a model to study the foundations of how motion signals are computed from raw visual input and transformed into behavioral output. My studies focus on how specific cells in the Drosophila nervous system implement this input-output transformation. The individual cell types are known from classical studies using Golgi impregnations, but the assembly of motion processing circuits and the behavioral outputs remain poorly understood. Using an electronic flight simulator for flies and a white-noise analysis developed by Aptekar et al., I screen specific neurons in the optic lobes for behavioral ramifications. This approach produces wing responses to both the spatial and temporal dynamics of motion signals. The results of these experiments give Spatiotemporal Action Fields (STAFs) across the entire visual panorama. Genetically inactivating a distinct grouping of cells in the third optic ganglion, the Lobula Plate, the Horizontal System (HS) cell group, produced a robust phenotype through STAF analysis. Using the Gal4-UAS transgene expression system, we selectively inactivated the HS cells by expressing in their membrane inward rectifying potassium channels (Kir2.1) to hyperpolarize these cells, preventing their role in synaptic signaling. The results of the experiments show mutants lose steering responses to several distinct categories of figure motion and reduced behavioral responses to figure motion set against a contrasting moving background, highlighting their role in figure tracking behavior. Finally, a synapse inactivating protein, tetanus toxin (TNT), expressed in the HS cell group, produces a different behavioral phenotype than overexpressing inward rectifier. TNT, a bacterial neurotoxin, cleaves SNARE proteins resulting in loss of synaptic output of the cell, but the dendrites are intact and signal normally, preserving dendro-dendritic interactions known to sculpt the visual receptive fields of these cells. The two distinct

  19. Poles in the Dutch Cape Colony 1652-1814

    Directory of Open Access Journals (Sweden)

    Kowalski Mariusz

    2015-06-01

    Full Text Available The contribution of Poles to the colonisation and development of the Dutch Cape Colony is not commonly known. Yet, Poles have been appearing in this colony since its very inception (1652. During the entire period considered here the presence of Poles was the result of the strong economic ties between Poland and the Netherlands. At the end of this period there was an increase in their share, in connection with the presence of numerous alien military units on the territory of the Colony, because of Poles having served in these units. Numerous newcomers from Poland settled in South Africa for good, established families, and their progeny made up part of the local society. The evidence of this phenomenon is provided by the present-day Afrikaner families of, for instance, Drotsky, Kitshoff, Kolesky, Latsky, Masuriek, Troskie, Zowitsky, and others. A quite superficial estimation implies that the settlers coming from Poland could make up a bit over 1% of the ancestors of the present-day Afrikaners. Poles would also participate in the pioneering undertakings within the far-off fringes of the Colony, including the robbery-and-trade expedition of 1702.

  20. Assessment of Pole Erosion in a Magnetically Shielded Hall Thruster

    Science.gov (United States)

    Mikellides, Ioannis G.; Ortega, Alejandro L.

    2014-01-01

    Numerical simulations of a 6-kW laboratory Hall thruster called H6 have been performed to quantify the erosion rate at the inner pole. The assessments have been made in two versions of the thruster, namely the unshielded (H6US) and magnetically shielded (H6MS) configurations. The simulations have been performed with the 2-D axisymmetric code Hall2De which employs a new multi-fluid ion algorithm to capture the presence of low-energy ions in the vicinity of the poles. It is found that the maximum computed erosion rate at the inner pole of the H6MS exceeds the measured rate of back-sputtered deposits by 4.5 times. This explains only part of the surface roughening that was observed after a 150-h wear test, which covered most of the pole area exposed to the plasma. For the majority of the pole surface the computed erosion rates are found to be below the back-sputter rate and comparable to those in the H6US which exhibited little to no sputtering in previous tests. Possible explanations for the discrepancy are discussed.

  1. Characteristics of the human figure in the beverage commercials broadcasted in Spain in 2006

    Directory of Open Access Journals (Sweden)

    Lic. María Jesús Ortiz Díaz–Guerra

    2008-01-01

    Full Text Available This article is a content analysis of the socio– demographic characteristics and the social and commercialfunctions carried out by the human figure in the beverage commercials broadcasted in Spain in 2006. The used methodology combines the qualitative with the quantitative analysis. Given the fact that human figures can be present in different forms inthe commercials: being a character of a story, a presenter or a voice over, we have studied those forms separately and jointly:we have identified their socio– demographics characteristics (social class, sex, age putting them in relation with the target.We have also studied the relation of the human figure with other human figures also presents in the commercials,distinguishing between their familiar roles, their labour roles and their commercial roles: what relation do they have with theproduct.

  2. Spirallike structure in the conoscopic figures of optically active crystals

    Science.gov (United States)

    Pikul', O. Yu.; Rudoi, K. A.; Livashvili, A. I.; Doronin, V. I.; Stroganov, V. I.

    2005-02-01

    This paper discusses a spirallike structure in the conoscopic figures of optically active crystals, differing from the Airy figure. The cause of the appearance of the spirallike structure is circularly polarized radiation.

  3. Karna Particle Size Dataset for Tables and Figures

    Data.gov (United States)

    U.S. Environmental Protection Agency — This dataset contains 1) table of bulk Pb-XAS LCF results, 2) table of bulk As-XAS LCF results, 3) figure data of particle size distribution, and 4) figure data for...

  4. Advancing Sustainable Materials Management: Facts and Figures Report

    Science.gov (United States)

    Each year EPA releases the Advancing Sustainable Materials Management: Facts and Figures report, formerly called Municipal Solid Waste in the United States: Facts and Figures. It includes information on Municipal Solid Waste generation, recycling, an

  5. La figure socratique : du miasme au paradigme

    Directory of Open Access Journals (Sweden)

    Marie-Hélène Gauthier-Muzellec

    2005-04-01

    Full Text Available L'identification de Socrate à un "miasme" dans l'Eutyphron est liée à la transformation et à l'intériorisation d'une ancienne norme juridique. La procédure de "purification" invoquée, qui doit débarrasser la cité d'une souillure provoquée par les atteintes à la religion civique, est primitivement magico-médicale. Elle traduit immédiatement dans les registres du corps le principe de la faute. C'est un travail d'intériorisation de cette figure qui engendre le soi, et Socrate est une étape histo...

  6. FIGUR WANITA SEBAGAI PENARIK PANDANG DALAM IKLAN

    Directory of Open Access Journals (Sweden)

    Andrian D. Hagijanto

    2000-01-01

    Full Text Available In order to gain brand awareness effectively%2C advertiser use unusual and sometimes inappropriate form of creatifity to make their ads more memorable such method includes the use of women s sexual attractions which%2C on the other hand%2C causes in fraction of ethical norms. Will this be called a deviations in ads or a compromise approach to the audience taste? Abstract in Bahasa Indonesia : Untuk mencapai brand awareness yang lebih tinggi%2C pengiklan harus membuat iklannya menarik%2C lewat kreativitas yang tinggi. Ketika kreativitas itu menggunakan pendekatan yang terjebak oleh pelanggaran norma-norma etis kemasyarakatan -lewat eksploatasi figur wanita dan daya tarik yang melingkupinya-. Akankah kreativitas itu disebut sebagai penyimpangan dalam iklan? Ataukah sah-sah saja sebagai suatu bentuk pendekatan yang menuruti selera pasar. advertisement%2C women s sexual attractions%2C body language

  7. Key figures for energy - 2014 issue

    International Nuclear Information System (INIS)

    2015-02-01

    This publication presents and discusses data and figures, under the form of graphs and tables, on the place of energy in the French economy, on all energies together (opinion on nuclear energy, average prices, energy bill, distribution of primary energy consumption among the different energy sources, global assessment in terms of sources and production, production and consumption of primary energy, final consumption per sector), on the different energy sources (final consumption per sector, primary production, imports and exports, distribution networks and grids, trade for the different sources: coal, oil, gas, electricity, renewable energies) and on other aspects related to energy: heat networks, rational use of energy, CO 2 emissions, energy price, international situation (production, primary and final energy consumption, indicators of energy intensity). An appendix proposes data of energy assessment for France for 2013

  8. Key figures on renewable energies - Release 2013

    International Nuclear Information System (INIS)

    Louati, Sami; Reynaud, Didier; Thienard, Helene

    2013-06-01

    This publication presents and briefly discusses figures (tables and graphs giving data and their evolution over the past years until 2011) for France and its overseas territories about the energy mix, the shares of the different renewable energies (wood, wind, heat pumps, biofuels, hydraulic, solar and others), the production of renewable electricity, the primary consumption of thermal renewable energies per sector (household and office building, industry, agriculture, transport) and per energy sector. A second part addresses the different renewable energies (hydraulic, wind, photovoltaic and thermal solar, heat pumps, wood, biogas, biofuels), indicates installed powers per district or region, their production level and the corresponding evolutions over the past years. A third part addresses the objectives for 2020, compares them with the current situation and outlines the possible biases in 2011 in terms of production and consumption. A fourth part presents graphs comparing data between countries in Europe and in the world in terms of production and consumption (share of renewable energies, electricity production)

  9. Digital finger: beyond phenomenological figures of touch

    Directory of Open Access Journals (Sweden)

    Mika Elo

    2012-02-01

    Full Text Available Mika Elo is a postdoctoral researcher and lecturer in visual culture at Aalto University School of Arts, Design and Architecture (Aalto-ARTS, Helsinki. His research interests include theory of photographic media, philosophical media theory, and artistic research. He is participating in discussions in these areas in the capacity of curator, visual artist and researcher. He has published articles in Finnish, German, and English among others on Benjamin, Nancy, artistic research and photography theory. His doctoral thesis Valokuvan medium [The Medium of Photography] was published in Finnish in 2005 (Tutkijaliitto, Helsinki. In 2009–2011 he worked in the Figures of Touch research project (figuresoftouch.com, and since 2011 he is the director of Media Aesthetics research group at Aalto-ARTS, Department of Media.Author Biography The article reflects on digitality and interface design in terms of the multiple senses of touch. Touching is presented as a “pathic” sense of being exposed, which implies that touching exceeds the tactile and even the phenomenal world. A particular focus is set on Aristotle's and Husserl's ways of thematizing the sense of touch. In this way, two extremes of the phenomenological thinking of touching are articulated: touching as an indistinct and heterogeneous constituent of sensitivity and touching as the guarantor of immediacy of the sense experience. Referring to Derrida's critical notes concerning haptocentrism, the article attempts to problematize the hand and the finger as phenomenological figures of touch and as holds of haptic realism. The article concludes that insofar as digital interface design aims at haptic realism it conceives of the sense of touch in terms of narcissistic feedback and thus tends to conceal the pathic moment of touching.

  10. Figure 1. T. tor species. Figure 2. Long PCR products of ...

    Indian Academy of Sciences (India)

    Annam

    Figure 2. Long PCR products of mitochondrial DNA from the fish T. tor. Lane 1, amplified product using L-12321-Leu and S-LA-16S-H primers. Lane 2, amplified product using H-12321 –Leu and S-LA-16S-L primers. Lane M, 1-Kb DNA ladder. 8 kb ...

  11. Radial Force and Acoustic Noise Reduction for Switched Reluctance Motor with Hole inside Pole

    Science.gov (United States)

    Sanada, Masayuki; Nakata, Kazuaki; Morimoto, Shigeo; Takeda, Yoji; Yamai, Hiroyuki

    A switched reluctance motor (SRM) has a simple construction, for example double saliency, and the rotor contains no windings or magnets. However, the disadvantage of the acoustic noise associated with this motor cannot be ignored. The acoustic noise is generated primarily by the radial force acting in the radial direction. As the excitation current is cut off, the radial force is suddenly reduced to 0. The stator yoke repeats attraction and release motion as the commutation at the excitation winding is repeated. This attraction and release motion excites the resonance frequency of the stator. In this paper, a new rotor pole structure is proposed to improve the acoustic noise of the SRM. The FEM analysis of the torque and radial force indicates that the presence of a hole in the rotor pole reduces the radial force. In addition, the effect of the radial force reduction was found to depend only slightly on the height of the hole, whereas the dependence on the width of the hole was significant. Experimental findings confirmed that a rotor pole having a hole is an effective method by which to improve the noise.

  12. Impact of Lower Pole Anatomy on Stone Clearance After Shock Wave Lithotripsy

    Directory of Open Access Journals (Sweden)

    Yung-Shun Juan

    2005-08-01

    Full Text Available This study retrospectively analyzed patients treated with shock wave ithotripsy (SWL for lower calyceal stones, to determine the influence of the lower pole anatomy and stone size in predicting the clearance of fragments. Between June 2000 and March 2002, we reviewed excretory urography (IVU of 59 patients with isolated lower pole stones treated with SWL. A total of 44 men and 15 women, with an age ranging between 23 and 78 years (mean, 55 years, were included in the study. The patients were divided into two groups, either a stone-free group or residual-stone group. After SWL, overall stone rate was 57.6%, and clearance for stones less than 10 mm in diameter was 64.5%, whereas clearance was 50% for stones between 10 and 20 mm in diameter. Intrarenal anatomy on IVU, such as infundibular width and infundibulopelvi-ureteric angle showed no significant difference between the stone-free and residual-stone groups. Our analysis showed that three significant variables were relevant to stone clearance: infundibular length, stone size and stone burden. We conclude that SWL is the best treatment for lower pole kidney stones 10 mm or less in diameter, showing lower complication and acceptable stone-free rates.

  13. Fundamental processes governing operation and degradation in state of the art P-OLEDs

    Science.gov (United States)

    Roberts, Matthew; Asada, Kohei; Cass, Michael; Coward, Chris; King, Simon; Lee, Andrew; Pintani, Martina; Ramon, Miguel; Foden, Clare

    2010-05-01

    We present a theoretical and experimental analysis of operation and degradation of model fluorescent blue bilayer polymer organic light emitting diodes (P-OLED). Optical and electrical simulations of bilayer P-OLEDs are used to highlight the key material and device parameters required for efficient recombination and outcoupling of excitons. Mobility data for a model interlayer material poly (9,9-dioctylfluorene-N-(4-(2-butyl)phenyl)-diphenylamine) (TFB) and a model fluorescent blue light emitting material poly-(9,9'- dioctylfluorene-co-bis-N, N'-(4-butylphenyl)-bis-N,N'- phenyl-1,4-phenylenediamine) (95:5 mol%) (F8-PFB random copoloymer), is shown to satisfy the key charge transport characteristics required to ensure exciton formation at the optimum location for efficient extraction of the light where μh (LEP) 90%) of the quenching sites produced. This highlights the importance of understanding these reversible phenomena in improving P-OLED lifetime and commercial adoption of the technology.

  14. Traumatic amputation of the left lower renal pole in children

    Energy Technology Data Exchange (ETDEWEB)

    Waxman, J.; Belman, A.B.; Kass, E.J.

    1985-07-01

    Four children between 5 and 10 years old suffered traumatic amputation of the left lower renal pole following flank trauma. All patients were evaluated with excretory urography and isotope renography. The renal scan clearly demonstrated failure of perfusion of the lower renal pole and urinary extravasation, and was believed to be more valuable than the standard excretory urogram as a diagnostic tool. All children were managed similarly: delayed (72 to 96 hours) exploration, simple removal of the amputated segment and insertion of a Penrose drain. They all have done well. The patients were normotensive at followup and had excellent function of the remaining portion of the kidney.

  15. Multiobjective H2/H? Control Design with Regional Pole Constraints

    Directory of Open Access Journals (Sweden)

    Junaidi Junaidi

    2012-03-01

    Full Text Available This paper presents multiobjective H2/H? control design with regional pole constraints. The state feedback gain can be obtained by solving a linear matrix inequality (LMI feasibility problem that robustly assigns the closed-loop poles in a prescribed LMI region. The proposed technique is illustrated with applications to the design of stabilizer for a typical single-machine infinite-bus (SMIB power system. The LMI-based control ensures adequate damping for widely varying system operating conditions. The simulation results illustrate the effectiveness and robustness of the proposed stabilizer.

  16. Induction Motor with Switchable Number of Poles and Toroidal Winding

    Directory of Open Access Journals (Sweden)

    MUNTEANU, A.

    2011-05-01

    Full Text Available This paper presents a study of an induction motor provided with toroidal stator winding. The ring-type coils offer a higher versatility in obtaining a different number of pole pairs by means of delta/star and series/parallel connections respectively. As consequence, the developed torque can vary within large limits and the motor can be utilized for applications that require, for example, high load torque values for a short time. The study involves experimental tests and FEM simulation for an induction machine with three configurations of pole pairs. The conclusions attest the superiority of the toroidal winding for certain applications such as electric vehicles or lifting machines.

  17. Pedagogický odkaz Ivana Poledňáka

    OpenAIRE

    Čižinská, Klára

    2017-01-01

    The bachelor thesis covers the personality of Ivan Poledňák and his music-teaching heritage. In the first part his life, his activities in musical educational organizations and teaching at universities in the Czech Republic are described. In the second part his musical pedagogical publications are analysed. The aim of this thesis is to punctuate to his big contribution in music education. KEYWORDS Ivan Poledňák, Musically pedagogical inventiveness, Music-school-tomorrow, 40 radio lectures of ...

  18. Poles Living in Ireland and their Quality of Life

    Directory of Open Access Journals (Sweden)

    Agnieszka NOLKA

    2009-05-01

    Full Text Available The economic growth of Ireland resulted in a significant number of Poles migrating to Ireland following the EU enlargement in 2004. The article explores the quality of life of Poles living in Ireland. Using data from a preliminary survey conducted in 2006, several dimensions of living conditions are analysed, including interpersonal relations, material security, health and healthcare. The study shows that evaluations of almost all aspects of quality of life improved, apart from components such as healthcare and the ability to acquire help from social organisations. Also interpersonal relations, contrary to the initial assumption, were enhanced by migration to Ireland.

  19. Lower pole stones: prone PCNL versus supine PCNL in the International Cooperation in Endourology (ICE) group experience.

    Science.gov (United States)

    Sanguedolce, Francesco; Breda, Alberto; Millan, Felix; Brehmer, Marianne; Knoll, Thomas; Liatsikos, Evangelos; Osther, Palle; Traxer, Olivier; Scoffone, Cesare

    2013-12-01

    To assess efficacy and safety of prone- and supine percutaneous nephrolithotomy (PCNL) for the treatment of lower pole kidney stones. Data from patients affected by lower pole kidney stones and treated with PCNL between December 2005 and August 2010 were collected retrospectively by seven referral centres. Variables analysed included patient demographics, clinical and surgical characteristics, stone-free rates (SFR) and complications. Statistical analysis was conducted to compare the differences for SFRs and complication rates between prone- and supine PCNL. One hundred seventeen patients underwent PCNL (mean stone size: 19.5 mm) for stones harboured only in the lower renal pole (single stone: 53.6%; multiple stones: 46.4%). A higher proportion of patients with ASA score ≥ 3 and harbouring multiple lower pole stones were treated with supine PCNL (5.8 vs. 23.1%; p = 0.0001, and 25 vs. 81.5%; p = 0.0001, respectively, for prone- and supine PCNL). One-month SFR was 88.9%; an auxiliary procedure was needed in 6 patients; the 3-month SFR was 90.2%. There were 9 post-operative major complications (7.7%). No differences were observed in terms of 1- and 3-month SFRs (90.4 vs. 87.7%; p = 0.64; 92.3 vs. 89.2%; p = 0.4) and complication rates (7.6 vs. 7.7%; p = 0.83) when comparing prone- versus supine PCNL, respectively. The results confirm the high success rate and relatively low morbidity of modern PCNL for lower pole stones, regardless the position used. Supine PCNL was more frequently offered in case of patients at higher ASA score and in case of multiple lower pole stones.

  20. Is it possible to reduce the knee joint compression force during level walking with hiking poles?

    DEFF Research Database (Denmark)

    Jensen, S B; Henriksen, M; Aaboe, J

    2010-01-01

    Walking with hiking poles has become a popular way of exercising. Walking with poles is advocated as a physical activity that significantly reduces the loading of the hip, knee and ankle joints. We have previously observed that pole walking does not lead to a reduction of the load on the knee joint....... However, it is unclear whether an increased force transmitted through the poles can reduce the load on the knee joint. Thus, the purpose of the present study was to investigate if an increased load transmitted through the arms to the poles could reduce the knee joint compression force during level walking...... with poles. We hypothesized that an increased pole force would result in a reduction of the knee joint compression force. Gait analyses from 10 healthy subjects walking with poles were obtained. The pole force was measured simultaneously during the gait analyses. The knee joint compression forces were...

  1. From 'third pole' to north pole: a Himalayan origin for the arctic fox.

    Science.gov (United States)

    Wang, Xiaoming; Tseng, Zhijie Jack; Li, Qiang; Takeuchi, Gary T; Xie, Guangpu

    2014-07-22

    The 'third pole' of the world is a fitting metaphor for the Himalayan-Tibetan Plateau, in allusion to its vast frozen terrain, rivalling the Arctic and Antarctic, at high altitude but low latitude. Living Tibetan and arctic mammals share adaptations to freezing temperatures such as long and thick winter fur in arctic muskox and Tibetan yak, and for carnivorans, a more predatory niche. Here, we report, to our knowledge, the first evolutionary link between an Early Pliocene (3.60-5.08 Myr ago) fox, Vulpes qiuzhudingi new species, from the Himalaya (Zanda Basin) and Kunlun Mountain (Kunlun Pass Basin) and the modern arctic fox Vulpes lagopus in the polar region. A highly hypercarnivorous dentition of the new fox bears a striking resemblance to that of V. lagopus and substantially predates the previous oldest records of the arctic fox by 3-4 Myr. The low latitude, high-altitude Tibetan Plateau is separated from the nearest modern arctic fox geographical range by at least 2000 km. The apparent connection between an ancestral high-elevation species and its modern polar descendant is consistent with our 'Out-of-Tibet' hypothesis postulating that high-altitude Tibet was a training ground for cold-environment adaptations well before the start of the Ice Age. © 2014 The Author(s) Published by the Royal Society. All rights reserved.

  2. Cytoarchitecture, probability maps and functions of the human frontal pole.

    Science.gov (United States)

    Bludau, S; Eickhoff, S B; Mohlberg, H; Caspers, S; Laird, A R; Fox, P T; Schleicher, A; Zilles, K; Amunts, K

    2014-06-01

    The frontal pole has more expanded than any other part in the human brain as compared to our ancestors. It plays an important role for specifically human behavior and cognitive abilities, e.g. action selection (Kovach et al., 2012). Evidence about divergent functions of its medial and lateral part has been provided, both in the healthy brain and in psychiatric disorders. The anatomical correlates of such functional segregation, however, are still unknown due to a lack of stereotaxic, microstructural maps obtained in a representative sample of brains. Here we show that the human frontopolar cortex consists of two cytoarchitectonically and functionally distinct areas: lateral frontopolar area 1 (Fp1) and medial frontopolar area 2 (Fp2). Based on observer-independent mapping in serial, cell-body stained sections of 10 brains, three-dimensional, probabilistic maps of areas Fp1 and Fp2 were created. They show, for each position of the reference space, the probability with which each area was found in a particular voxel. Applying these maps as seed regions for a meta-analysis revealed that Fp1 and Fp2 differentially contribute to functional networks: Fp1 was involved in cognition, working memory and perception, whereas Fp2 was part of brain networks underlying affective processing and social cognition. The present study thus disclosed cortical correlates of a functional segregation of the human frontopolar cortex. The probabilistic maps provide a sound anatomical basis for interpreting neuroimaging data in the living human brain, and open new perspectives for analyzing structure-function relationships in the prefrontal cortex. The new data will also serve as a starting point for further comparative studies between human and non-human primate brains. This allows finding similarities and differences in the organizational principles of the frontal lobe during evolution as neurobiological basis for our behavior and cognitive abilities. Copyright © 2013 Elsevier Inc. All

  3. Additional figures in Ady Endre’s poem: A magyar Ugaron and in its English translations: The magyar fallow by Nyerges Anton and On the Hungarian ...

    Directory of Open Access Journals (Sweden)

    TIMEA KISS

    2013-12-01

    Full Text Available My paper examines the figures of speech in English translations of Ady’s poem. The main organizers in Ady’s texts are repetition, parallelism, antithesis and other figures. The connection between these figures is an important component of his style. I examine whether the translations are showing these figures, and if so, what their function is. The paper mostly concentrates on repetition in the translations. An analysis of one poem by Ady is presented through the translated texts.

  4. Evaluation of layback spin in figure skating

    Directory of Open Access Journals (Sweden)

    Jastšenjski Ksenija

    2011-01-01

    Full Text Available Layback spin is considered as one of the most beautiful and elegant spins performed in figure skating. It is also one of the required spins in competitive short program in female category. Different techniques of executing layback spin with variations in changing the positions of free parts of the body, as well as the evaluation of layback spin in accordance with ISU rules and regulations, which have been used in all International Skating Federation competitions since 2004 (World and European championships, Olympic Games are presented in this paper. Due to very difficult position of the body while performing a layback spin, it is essential that the skaters who want to master it should have excellent agility (especially of the spinal column and shoulder and knee joints and balance. Layback spin performance requires significant skating knowledge, so it cannot be performed by beginners. Depending on the fl exibility and creativity, a skater can execute various positions of the head, arms, body and free leg while performing a layback spin. In some cases, these variations can increase the level of difficulty, and in others only the mark given for executing this spin.

  5. The midwife figure: a historiographical inquiry

    Directory of Open Access Journals (Sweden)

    Clotilde Cicatiello

    2013-10-01

    Full Text Available The history of midwifery, fairly disregarded by Italian historiography, results crucial in order to fully understand both the role of women and of the foundation of the family in post-unification Italy. It firmly highlights the complexity, the undertones and, sometimes, the contradictions of the female models. The historical research, mainly in the English area, has fully recognized the indisputable significance of the midwives’ role. As a matter of fact, they emerge as representatives of medical professions in the volume by Willem Tousijn, Il sistema delle occupazioni sanitarie (2000, which combines both historical reconstruction and sociological survey. If, on the one hand, the history of midwifery is quite acquainted for the 17th and 18th centuries, thanks to the works by Mireill Laget (1982, and by Jacques Gélis (1988, on the other hand, however, the 19th century still remains to be written for the great part. In Italy, Laura Guidi, Claudia Pancino and Alessandra Gissi have traced an outline of the midwives’ path for their professional achievement throughout the 19th and the 20th centuries. This article briefly reviews these themes, rereading the texts and focusing, in particular, on the question of the professionalization of the midwife and on its actual recognition as a professional figure.

  6. Advances in precision mirror figure metrology (abstract)

    International Nuclear Information System (INIS)

    Takacs, P.Z.; Furenlid, K.; Church, E.L.

    1992-01-01

    New developments in optical measurement techniques have made it possible to test the surface quality on grazing incidence optics with extreme precision and accuracy. An instrument developed at Brookhaven, the Long Trace Profiler (LTP), measures the figure of large (up to 1 m long) cylindrical aspheres with nanometer accuracy. The LTP optical system is based around a common-path interferometer design belonging to the class of slope measuring interferometers and, as such, it is very robust, stable, and vibration insensitive. A unique error correction technique removes the effect of tilt errors in the optical head as it traverses the air bearing, thus allowing one to accurately measure the absolute surface profile and radius of curvature. This is of critical importance to the manufacture of long-radius spherical optics used in high-resolution soft x-ray monochromators and in the testing of mirror bending systems. This talk will review the principle of operation of the LTP, probe the factors limiting the performance of the system, and will examine the current state of the art in synchrotron radiation mirror manufacturing quality (as viewed by our metrology techniques). This research was supported by the U.S. Department of Energy Contract No. DE-AC02-76CH00016

  7. An economics figure of merit in ALPS

    International Nuclear Information System (INIS)

    Shatilla, Y.A.

    2000-01-01

    One of the most pressing issues facing the deregulated nuclear electric power industry is its economic competitiveness when compared to other sources of electrical power. Traditionally, finding the optimum loading pattern (LP) that meets all the safety and operational objective functions and at the same time produces the most attractive economical solutions is an iterative process. This is because (a) LP search tools usually lack the capability to generate equilibrium solutions and (b) economics objective functions are hard to include in the search process. In this paper, the Westinghouse Advanced Loading Pattern Search code (ALPS) has been demonstrated to successfully find LPs that meet user-defined operational and safety as well as economics objectives. This has been made possible by the development of TULIP language that allows the integration of external procedures into the search process of the main program, ALPS. In the example given, an economic figure of merit (EFM) has been defined and included via TULIP script into the fuel management optimization problem of a three-loop Westinghouse core operating an 18-month cycle. The LPs found by ALPS exhibit a clear trend of meeting and, in some cases, exceeding the EFM objective function defined for the ALPS search process a priori

  8. Liz Taylor : minu van Gogh pole natsidele kuulunud

    Index Scriptorium Estoniae

    2004-01-01

    Elizabeth Taylor palus kohtult otsust, et talle kuuluvat 15 miljonit dollarit maksvat Vincent van Goghi maali "Vaade Saint-Remy varjupaigale" pole natsid Margarete Mauthneri juudiperekonna käest vägivaldselt ära võtnud. E. Taylori isa ostis maali 1963. a. Londonis oksjonilt

  9. Analytical signal and reduction to pole in the interpretation of ...

    African Journals Online (AJOL)

    Analytical signal and reduction to pole in the interpretation of aeromagnetic data at low magnetic latitudes: a case study of the middle Benue trough, Nigeria. OK Likkason. Abstract. No Abstract. Global Journal of Geological Sciences Vol. 4(1) 2006: 29-38. Full Text: EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL ...

  10. Probability models of the x, y pole coordinates data

    Science.gov (United States)

    Sen, A.; Niedzielski, T.; Kosek, W.

    2008-12-01

    The aim of this study is to find the most appropriate probabilistic model for the x, y pole coordinates time series. We have analyzed the IERS eopc04_05 data set covering the period 1962 - 2008. We have also considered the residual x, y pole coordinate time series, which is computed as the difference between the original data and the corresponding least-squares model of the Chandler circle and annual ellipse. Using the measures of skewness and kurtosis of the empirical distribution of the data, we find that the x, y pole coordinates and the corresponding residuals time series cannot be modeled by a normal (Gaussian) distribution. A normal distribution has zero skewness and a kurtosis value of 3. We have fitted several non- Gaussian distributions to the datasets. They include the Generalized Extreme Value distribution, 4-parameter Beta distribution, Johnson SB and SU distributions, Generalized Pareto distribution and Wakeby distribution. Suitability of these distributions as probabilistic models for the x, y pole coordinates and the corresponding residuals time series are discussed.

  11. Bacterial diversity in snow on North Pole ice floes

    DEFF Research Database (Denmark)

    Hauptmann, Aviaja Zenia Edna Lyberth; Stibal, Marek; Bælum, Jacob

    2014-01-01

    The microbial abundance and diversity in snow on ice floes at three sites near the North Pole was assessed using quantitative PCR and 454 pyrosequencing. Abundance of 16S rRNA genes in the samples ranged between 43 and 248 gene copies per millilitre of melted snow. A total of 291,331 sequences we...

  12. Particles as S-matrix poles: hadron democracy

    International Nuclear Information System (INIS)

    Chew, G.F.

    1989-01-01

    The connection between two theoretical ideas of the 1950s is traced in this article, namely that hadrons are nonfundamental, ''composite'' particles and that all physically observable particles correspond to singularities of an analytic scattering matrix. The S matrix theory developed by Werner Heisenberg in the early forties now incorporated the concepts of unitarity, invariance, analyticity and causality. The meson-exchange force meant that poles must be present in nucleon-nuclear and pion-nucleon scattering as predicted by dispersion relations. Experimental work in accessible regions determined pole residues. Pole residue became associated with force strength and pole position with particle mass. In 1959, the author discovered the so-called ''bootstrap'' theory the rho meson as a force generates a rho particle. By the end of the 1950s it was clear that all hadrons had equal status, each being bound states of other hadrons, sustained by hadron exchange forces and that hadrons are self-generated by an S-matrix bootstrap mechanism that determines all their properties. (UK)

  13. Separable pole expansions in four-nucleon bound state calculations

    International Nuclear Information System (INIS)

    Sofianos, S.A.; Fiedeldey, H.; Haberzettl, H.; Sandhas, W.

    1982-04-01

    We compare the utility of the Generalized Unitary Pole Expansion (GUPE) and the Energy-Dependent Pole Expansion (EDPE) for the three-body subsystem amplitudes in four-body state calculations for a variety of separable and local nucleon-nucleon interactions. It is found that, with the EDPE, the four-body binding energy is well reproduced with only two terms each for the (2+2)- and the (3+1)-subsystem, respectively, while the GUPE requires three terms for the (3+1)-channel and four terms for the (2+2)-channel. We thus conclude that pole dominance is of greater importance for the GUPE than for EDPE, which works equally well for both types of subsystems. It is found that both methods, in particular the EDPE, converge more rapidly with increasing repulsion in the two-body interaction, i.e. the more realistic the interaction becomes. Both expansions require similar computing times for a converged calculation and are about 15-20 times faster than the widely used Hilbert-Schmidt Expansion (HSE). The respective merits of the two pole expansions are discussed and compared with the HSE. (orig.)

  14. USA valitsus: Tallinna linnahalli miljardigarantiid pole olemas / Raimo Poom

    Index Scriptorium Estoniae

    Poom, Raimo

    2010-01-01

    USA Eesti-saatkonna teatel pole USA valitsus andnud garantiid mitte ühelegi projektile Tallinnas. Tallinna abilinnapea Taavi Aasa sõnul ei saa USA garantiist teha juttu enne, kui Eesti valitsus selle omakorda garanteerib. Taavi Aasa kirjast rahandusminister Jürgen Ligile

  15. An estimate on the purely imaginary poles of scattering matrix

    International Nuclear Information System (INIS)

    Bozhkov, Y.D.

    1988-12-01

    In this work we obtain two estimates (upper and lower) on the number of purely imaginary poles of the scattering matrix for the wave equation in the exterior of a compact smooth obstacle in R n , n ≥ 3 odd. The method of Lax and Phillips is used. (author). 5 refs

  16. Kick, Glide, Pole! Cross-Country Skiing Fun (Part II)

    Science.gov (United States)

    Duoos, Bridget A.

    2012-01-01

    Part I of Kick, Glide, Pole! Cross-Country Skiing Fun, which was published in last issue, discussed how to select cross-country ski equipment, dress for the activity and the biomechanics of the diagonal stride. Part II focuses on teaching the diagonal stride technique and begins with a progression of indoor activities. Incorporating this fun,…

  17. Catapult effect in pole vaulting: is muscle coordination determinant?

    Science.gov (United States)

    Frère, Julien; Göpfert, Beat; Hug, François; Slawinski, Jean; Tourny-Chollet, Claire

    2012-02-01

    This study focused on the phase between the time of straightened pole and the maximum height (HP) of vaulter and aimed at determining the catapult effect in pole vaulting on HP. Seven experienced vaulters performed 5-10 vaults recorded by two video cameras, while the surface electromyography (sEMG) activity of 10 upper limbs muscles was recorded. HP was compared with an estimated maximum height (HP(est)) allowing the computation of a push-off index. Muscle synergies were extracted from the sEMG activity profiles using a non-negative matrix factorization algorithm. No significant difference (p>0.47) was found between HP(est) (4.64±0.21m) and HP (4.69±0.23m). Despite a high inter-individual variability in sEMG profiles, two muscle synergies were extracted for all the subjects which accounted for 96.1±2.9% of the total variance. While, the synergy activation coefficients were very similar across subjects, a higher variability was found in the muscle synergy vectors. Consequently, whatever the push-off index among the pole vaulters, the athletes used different muscle groupings (i.e., muscle synergy vectors) which were activated in a similar fashion (i.e., synergy activation coefficients). Overall, these results suggested that muscle coordination adopted between the time of straightened pole and the maximum height does not have a major influence on HP. Copyright © 2011 Elsevier Ltd. All rights reserved.

  18. Pole solution in six dimensions as a dimensional reduction model

    Science.gov (United States)

    Ichinose, Shoichi

    2002-01-01

    A solution with the pole configuration in six dimensions is analyzed. It is a dimensional reduction model of Randall-Sundrum type. The soliton configuration is induced by the bulk Higgs mechanism. The boundary condition is systematically solved up to the 6th order. The Riemann curvature is finite everywhere.

  19. Diplodia natalensis , Pole Evans: a causal agent of citrus gummosis ...

    African Journals Online (AJOL)

    Isolations were made from the barks of gummosis-infected citrus trees from orchards of the University of Ghana Agricultural Research Station at Kade. The isolation media used were 1.5% water agar, 1.5% water agar + nystatin and 1.5% water agar + benomyl. Four isolates including Diplodia natalensis Pole Evans, ...

  20. Poled-glass devices: Influence of surfaces and interfaces

    DEFF Research Database (Denmark)

    Fage-Pedersen, Jacob; Jacobsen, Rune Shim; Kristensen, Martin

    2007-01-01

    Devices in periodically poled glass must have a large periodic variation of the built-in field. We show that the periodic variation can be severely degraded by charge dynamics taking place at the external (glass–air) interface or at internal (glass–glass) interfaces if the interfaces have imperfe...

  1. BMP regulates vegetal pole induction centres in early xenopus development.

    Science.gov (United States)

    Nachaliel, N; Re'Em-Kalma, Y; Eshed, O; Elias, S; Frank, D

    1998-10-01

    Bone morphogenetic protein (BMP) plays an important role in mesoderm patterning in Xenopus. The ectopic expression of BMP-4 protein hyperventralizes embryos, whereas embryos expressing a BMP-2/4 dominant-negative receptor (DNR) are hyperdorsalized. Mesoderm is initially induced in the marginal zone by cells in the underlying vegetal pole. While much is known about BMP's expression and role in patterning the marginal zone, little is known about its early role in regulating vegetal mesoderm induction centre formation. The role of BMP in regulating formation of vegetal mesoderm inducing centres during early Xenopus development was examined. Ectopic BMP-4 expression in vegetal pole cells inhibited dorsal mesoderm induction but increased ventral mesoderm induction when recombined with animal cap ectoderm in Nieuwkoop explants. 32-cell embryos injected with BMP-4 RNA in the most vegetal blastomere tier were not hyperdorsalized by LiCl treatment. The ectopic expression of Smad or Mix.1 proteins in the vegetal pole also inhibited dorsal mesoderm induction in explants and embryos. Expression of the BMP 2/4 DNR in the vegetal pole increased dorsal mesoderm induction and inhibited ventral mesoderm induction in explants and embryos. These results support a role for BMP signalling in regulating ventral vegetal and dorsal vegetal mesoderm induction centre formation during early Xenopus development.

  2. Carrier Phase GPS Navigation to the North Pole

    Science.gov (United States)

    Moore, T.; Roberts, G. W.

    Over the last few years, on-the-fly integer ambiguity resolution for GPS has proven to be successful over short baselines (500 km. New techniques have been developed at the University of Nottingham to allow very long baseline integer ambiguity resolution, on-the-fly. A major problem with the use of carrier phase data is that posed by cycle slips. A technique for detecting and correcting cycle slips has been developed, and its use is discussed in this paper. The new technique has been proven through a series of trials, one of which included two flights to the North Pole, performing centimetric level positioning all the way to the pole. For many years, the GD Aero-Systems Course of the Air Warfare Centre based at RAF Cranwell executed a series of equipment flight trials to the North Pole, called the ARIES Flights. In May 1996, the authors were fortunate to take part in both flights, via Iceland and Greenland, to the North Pole. Based on reference stations at Thule Air Base, integer ambiguity resolution was accomplished, on-the-fly, and centimetric level navigation maintained throughout the flights. Earlier trials detailed in the paper demonstrate that the technique can resolve integer ambiguities on-the-fly within a few seconds over a baseline length of approximately 134 km, resulting in an accuracy of 12 cm. The majority of the residual error source for this being the ionosphere.

  3. Decay resistance of out-of-service utility poles as related to the distribution of residual creosote content

    Science.gov (United States)

    Han Roliadi; Chung Y. Hse; Elvin T. Choong; Todd F. Shupe

    2000-01-01

    Decay resistance of out-of-service poles was investigated to evaluate their effectiveness against biodegradation for possible recycling of these poles for composite products. Decay resistance was related to creosote content and creosote distribution in poles with service durations of 5 and 25 years and also freshly treated poles. Weathering of the poles had caused...

  4. Proyecto Bilingüe: Constructing a Figured World of Bilingual Education for Latina/o Bilingual Teachers

    Science.gov (United States)

    Ek, Lucila D.; Chávez, Guadalupe Domínguez

    2015-01-01

    Using theories of figured worlds, we demonstrate how Proyecto Bilingüe, a Master of Arts in Curriculum and Instruction program, constructs a figured world of bilingual education for Latina/o bilingual teachers. We drew from a larger qualitative study to conduct a thematic analysis of interviews with Latina/o bilingual teachers, their written…

  5. Bycatch in the Maldivian pole-and-line tuna fishery.

    Science.gov (United States)

    Miller, Kelsey I; Nadheeh, Ibrahim; Jauharee, A Riyaz; Anderson, R Charles; Adam, M Shiham

    2017-01-01

    Tropical tuna fisheries are among the largest worldwide, with some having significant bycatch issues. However, pole-and-line tuna fisheries are widely believed to have low bycatch rates, although these have rarely been quantified. The Maldives has an important pole-and-line fishery, targeting skipjack tuna (Katsuwonus pelamis). In the Maldives, 106 pole-and-line tuna fishing days were observed between August 2014 and November 2015. During 161 fishing events, tuna catches amounted to 147 t: 72% by weight was skipjack, 25% yellowfin tuna (Thunnus albacares) and 3% other tunas. Bycatch (all non-tuna species caught plus all tuna discards) amounted to 951 kg (0.65% of total tuna catch). Most of the bycatch (95%) was utilized, and some bycatch was released alive, so dead discards were particularly low (0.02% of total tuna catch, or 22 kg per 100 t). Rainbow runner (Elagatis bipinnulata) and dolphinfish (Coryphaena hippurus) together constituted 93% of the bycatch. Live releases included small numbers of silky sharks (Carcharhinus falciformis) and seabirds (noddies, Anous tenuirostris and A. stolidus). Pole-and-line tuna fishing was conducted on free schools and schools associated with various objects (Maldivian anchored fish aggregating devices [aFADs], drifting FADs from western Indian Ocean purse seine fisheries, other drifting objects and seamounts). Free school catches typically included a high proportion of large skipjack and significantly less bycatch. Associated schools produced more variable tuna catches and higher bycatch rates. Fishing trips in the south had significantly lower bycatch rates than those in the north. This study is the first to quantify bycatch rates in the Maldives pole-and-line tuna fishery and the influence of school association on catch composition. Ratio estimator methods suggest roughly 552.6 t of bycatch and 27.9 t of discards are caught annually in the fishery (based on 2015 national catch), much less than other Indian Ocean tuna

  6. Acute effects of flexible pole exercise on heart rate dynamics.

    Science.gov (United States)

    de Oliveira, Letícia Santana; Moreira, Patrícia S; Antonio, Ana M; Cardoso, Marco A; de Abreu, Luiz Carlos; Navega, Marcelo T; Raimundo, Rodrigo D; Valenti, Vitor E

    2015-01-01

    Exercise with flexible poles provides fast eccentric and concentric muscle contractions. Although the literature reports significant muscle chain activity during this exercise, it is not clear if a single bout of exercise induces cardiac changes. In this study we assessed the acute effects of flexible pole exercise on cardiac autonomic regulation. The study was performed on 22 women between 18 and 26 years old. We assessed heart rate variability (HRV) in the time (SDNN, RMSSD and pNN50) and frequency (HF, LF and LF/HF ratio) domains and geometric indices of HRV (RRTri, TINN, SD1, SD2 and SD1/SD2 ratio). The subjects remained at rest for 10 min and then performed the exercises with the flexible poles. Immediately after the exercise protocol, the volunteers remained seated at rest for 60 min and HRV was analyzed. We observed no significant changes in time domain (SDNN: p=0.72; RMSSD: p=0.94 and pNN50: p=0.92) or frequency domain indices (LF [nu]: p=0.98; LF [ms(2)]: p=0.72; HF [nu]: p=0.98; HF [ms(2)]: p=0.82 and LF/HF ratio: p=0.7) or in geometric indices (RRTri: p=0.54; TINN: p=0.77; SD1: p=0.94; SD2: p=0.67 and SD/SD2: p=0.42) before and after a single bout of flexible pole exercise. A single bout of flexible pole exercise did not induce significant changes in cardiac autonomic regulation in healthy women. Copyright © 2014 Sociedade Portuguesa de Cardiologia. Published by Elsevier España. All rights reserved.

  7. Wire inhomogeneity detector having a core with opposing pole pieces and guide pieces adjacent the opposing pole pieces

    International Nuclear Information System (INIS)

    Gibson, G.H.; Smits, R.G.; Eberhard, P.H.

    1989-01-01

    This patent describes a wire inhomogeneity detector assembly for detecting changes in the conductive properties of a wire as the wire is passed therethrough. It comprises: a coil assembly through which a wire containing conductive material is adapted to be pressed in a direction substantially perpendicular to a longitudinal axis of the coil assembly. The coil assembly comprising a single ferrite core having a pair of opposing pole pieces between which are an associated conductive wire to be tested is adapted to be passed, each of the pole pieces having a coil wound therearound. The coil assembly including a guide-block consisting of a pair of guide pieces mounted adjacent to ends of the opposing pole pieces for guiding an associated conductive wire between the pole pieces and for reducing stray magnetic field lines. The guide pieces being positioned closely adjacent an associated conductive wire passing therebetween; an impedance bridge adjusted to an null balance point operatively connected to the coil assembly which measures the impedance of the coil assembly and is unbalanced by changes in eddy currents generated in the coil assembly; and a filter detector alarm assembly operatively connected to an output of the impedance bridge. The filter detector alarm assembly including an input bandpass filter detector alarm assembly including an input bandpass filter operatively connected to a differential comparator, the output of which triggers an alarm

  8. Metallic microstructure analysis using TOF type pulse neutron diffraction

    International Nuclear Information System (INIS)

    Sato, Shigeo; Nakagawa, Maiko; Onuki, Yusuke; Hoshikawa, Akinori; Yamanaka, Kenta; Tomida, Toshiro

    2017-01-01

    In the iMATERIA beamline of J-PARC MLF, detectors are arranged three-dimensionally against a sample. The use of TOF type pulse neutron diffraction using this optical system has made it possible to measure the texture, phase fraction, and dislocation, simultaneously and quickly. This paper outlined the characteristics and measurement system of TOF type diffraction in iMATERIA, and introduced the quantitative accuracy/reliability of the obtained microstructure information, as well as the possibility of future application development. The iMATERIA has about 1,500 units of 3 He-one-dimensional position sensitive detectors, and three detector banks are arranged in the diffraction angle region from low angle to high angle so as to surround the sample. Due to the features of this configuration and resolution, line profile analysis for dislocation and pole figure measurement for texture are possible. In texture analysis using TOF type neutron diffraction, the pole figure can be measured without sample rotation, which enables the tracking of dynamic texture change. In the phase fraction analysis based on texture analysis, the phase fraction could be obtained for the sample with about 1% of austenite volume fraction, with the same accuracy as that with 100%. As an application example of microstructure analysis associated with martensitic transformation, the martensite phase fraction of the cold rolled alloy was compared with the measurement of the conventional electron backscatter diffraction (EBSD) method, and the difference was discussed. (A.O.)

  9. Positive Feedback From Male Authority Figures Boosts Women's Math Outcomes.

    Science.gov (United States)

    Park, Lora E; Kondrak, Cheryl L; Ward, Deborah E; Streamer, Lindsey

    2018-03-01

    People often search for cues in the environment to determine whether or not they will be judged or treated negatively based on their social identities. Accordingly, feedback from gatekeepers-members of majority groups who hold authority and power in a field-may be an especially important cue for those at risk of experiencing social identity threat, such as women in math settings. Across a series of studies, women who received positive ("Good job!") versus objective (score only) feedback from a male (vs. female) authority figure in math reported greater confidence; belonging; self-efficacy; more favorable Science, Technology, Engineering, and Mathematics (STEM) attitudes/identification/interest; and greater implicit identification with math. Men were affected only by the type of math feedback they received, not by the source of feedback. A meta-analysis across studies confirmed results. Together, these findings suggest that positive feedback from gatekeepers is an important situational cue that can improve the outcomes of negatively stereotyped groups.

  10. Repair of impact damaged utility poles with fiber reinforced polymers (FRP), phase II : [summary].

    Science.gov (United States)

    2015-04-01

    The aluminum and steel utility poles which support traffic signals, lighting, or mast-arm signs : are vulnerable to collisions from vehicles because of proximity to roadways. Removing these : poles for repair is costly and time-consuming, and removal...

  11. Lighting, backlighting and watercolor illusions and the laws of figurality.

    Science.gov (United States)

    Pinna, Baingio; Reeves, Adam

    2006-01-01

    We report some novel 'lighting' and 'backlighting' effects in plane figures similar to those which induce the 'watercolor illusion', that is, figures made with outlines composed of juxtaposed parallel lines varying in brightness and chromatic color. These new effects show 'illumination' as an emergent percept, and show how arrangements of 'dark and light' along the boundaries of various plane figures model the volume and strengthen the illusion of depth. To account for these various effects we propose several phenomenological 'laws of figurality' to add to the Gestalt laws of organization and figure-ground segregation. We offer a set of meta-laws which are speculative but which serve to integrate and organize the phenomenological laws. These laws indicate how luminance gradient profiles across boundary contours define both the 3D appearance of figures and the properties of the light reflected from their volumetric shapes.

  12. A Pole-Zero Filter Cascade Provides Good Fits to Human Masking Data and to Basilar Membrane and Neural Data

    Science.gov (United States)

    Lyon, Richard F.

    2011-11-01

    A cascade of two-pole-two-zero filters with level-dependent pole and zero dampings, with few parameters, can provide a good match to human psychophysical and physiological data. The model has been fitted to data on detection threshold for tones in notched-noise masking, including bandwidth and filter shape changes over a wide range of levels, and has been shown to provide better fits with fewer parameters compared to other auditory filter models such as gammachirps. Originally motivated as an efficient machine implementation of auditory filtering related to the WKB analysis method of cochlear wave propagation, such filter cascades also provide good fits to mechanical basilar membrane data, and to auditory nerve data, including linear low-frequency tail response, level-dependent peak gain, sharp tuning curves, nonlinear compression curves, level-independent zero-crossing times in the impulse response, realistic instantaneous frequency glides, and appropriate level-dependent group delay even with minimum-phase response. As part of exploring different level-dependent parameterizations of such filter cascades, we have identified a simple sufficient condition for stable zero-crossing times, based on the shifting property of the Laplace transform: simply move all the s-domain poles and zeros by equal amounts in the real-s direction. Such pole-zero filter cascades are efficient front ends for machine hearing applications, such as music information retrieval, content identification, speech recognition, and sound indexing.

  13. Electric field poling induced self-biased converse magnetoelectric response in PMN-PT/NiFe2O4 nanocomposites

    Science.gov (United States)

    Ahlawat, Anju; Satapathy, S.; Deshmukh, Pratik; Shirolkar, M. M.; Sinha, A. K.; Karnal, A. K.

    2017-12-01

    In this letter, studies on structural transitions and the effect of electric field poling on magnetoelectric (ME) properties in 0.65Pb (Mg1/3Nb2/3)O3-0.35PbTiO3 (PMN-PT)/NiFe2O4 (NFO) nanocomposites are reported. The composite illustrates dramatic changes in the NFO crystal structure across ferroelectric transition temperature [Curie temperature (Tc) ˜ 450 K] of PMN-PT, while pure NFO does not exhibit any structural change in the temperature range (300 K-650 K). Synchrotron based X-ray diffraction analysis revealed the splitting of NFO peaks across the Tc of PMN-PT in the PMN-PT/NFO composite. Consequently, the anomalies are observed in temperature dependent magnetization of the NFO phase at the Tc of PMN-PT, establishing ME coupling in the PMN-PT/NFO composite. Furthermore, the composite exhibits drastic modification in ME coupling under electrically poled and unpoled conditions. A large self-biased ME effect characterized by non-zero ME response at zero Hbias was observed in electrically poled composites, which was not observed in unpoled PMN-PT/NFO. These results propose an alternative mechanism for intrinsic converse ME effects. The maximum magnetoelectric output was doubled after electrical poling. The observed self-biased converse magnetoelectric effect at room temperature provides potential applications in electrically controlled memory devices and magnetic flux control devices.

  14. ASTEP South: An Antarctic Search for Transiting ExoPlanets around the celestial South pole

    OpenAIRE

    Crouzet , Nicolas; Guillot , Tristan; Agabi , Karim; Rivet , Jean-Pierre; Bondoux , Erick; Challita , Zalpha; Fanteï-Caujolle , Yan; Fressin , François; Mékarnia , Djamel; Schmider , François-Xavier; Valbousquet , Franck; Blazit , Alain; Bonhomme , Serge; Abe , Lyu; Daban , Jean-Baptiste

    2009-01-01

    ASTEP South is the first phase of the ASTEP project (Antarctic Search for Transiting ExoPlanets). The instrument is a fixed 10 cm refractor with a 4kx4k CCD camera in a thermalized box, pointing continuously a 3.88 degree x 3.88 degree field of view centered on the celestial South pole. ASTEP South became fully functional in June 2008 and obtained 1592 hours of data during the 2008 Antarctic winter. The data are of good quality but the analysis has to account for changes in the point spread f...

  15. Dynamical pattern formation in two-dimensional fluids and Landau pole bifurcation

    Science.gov (United States)

    Ogawa, Shun; Barré, Julien; Morita, Hidetoshi; Yamaguchi, Yoshiyuki Y.

    2014-06-01

    A phenomenological theory is proposed to analyze the asymptotic dynamics of perturbed inviscid Kolmogorov shear flows in two dimensions. The phase diagram provided by the theory is in qualitative agreement with numerical observations, which include three phases depending on the aspect ratio of the domain and the size of the perturbation: a steady shear flow, a stationary dipole, and four traveling vortices. The theory is based on a precise study of the inviscid damping of the linearized equation and on an analysis of nonlinear effects. In particular, we show that the dominant Landau pole controlling the inviscid damping undergoes a bifurcation, which has important consequences on the asymptotic fate of the perturbation.

  16. Multipole lenses with implicit poles and with harmonic distribution of current density in a coil

    International Nuclear Information System (INIS)

    Skachkov, V.S.

    1984-01-01

    General theory of the multipole lense with implicit poles is presented. The thickness of lense coil is finite. Current density distribution in the coil cross section is harmonic in the azimuth direction and arbitrary in the radial one. The calculation of yoke contribution in the lence field is given. Two particular lense variants differing from each other in the method of current density radial distribution are considered and necessary calculated relations for the lense with and without yoke ar presented. A comparative analysis of physical and technological peculiarities of these lenses is performed

  17. BOOK REVIEW: Relativistic Figures of Equilibrium

    Science.gov (United States)

    Mars, M.

    2009-08-01

    Compact fluid bodies in equilibrium under its own gravitational field are abundant in the Universe and a proper treatment of them can only be carried out using the full theory of General Relativity. The problem is of enormous complexity as it involves two very different regimes, namely the interior and the exterior of the fluid, coupled through the surface of the body. This problem is very challenging both from a purely theoretical point of view, as well as regarding the obtaining of realistic models and the description of their physical properties. It is therefore an excellent piece of news that the book 'Relativistic Figures of Equilibrium' by R Meinel, M Ansorg, A Kleinwächter, G Neugebauer and D Petroff has been recently published. This book approaches the topic in depth and its contents will be of interest to a wide range of scientists working on gravitation, including theoreticians in general relativity, mathematical physicists, astrophysicists and numerical relativists. This is an advanced book that intends to present some of the present-day results on this topic. The most basic results are presented rather succinctly, and without going into the details, of their derivations. Although primarily not intended to serve as a textbook, the presentation is nevertheless self-contained and can therefore be of interest both for experts on the field as well as for anybody wishing to learn more about rotating self-gravitating compact bodies in equilibrium. It should be remarked, however, that this book makes a rather strong selection of topics and concentrates fundamentally on presenting the main results obtained by the authors during their research in this field. The book starts with a chapter where the fundamental aspects of rotating fluids in equilibrium, including its thermodynamic properties, are summarized. Of particular interest are the so-called mass-shedding limit, which is the limit where the body is rotating so fast that it is on the verge of starting

  18. Logo design: examining consumer response to figurativeness across cultures

    OpenAIRE

    Machado, Joana César; Vacas de Carvalho, Leonor; Torres, Anna; Van de Velden, Michel; Costa, Patrício

    2014-01-01

    Literature concerned with logo strategy suggests that the aesthetic appeal of brand logo significantly influences consumer reactions. The main purpose of this research is to study the influence of the different categories of figurative logo designs on consumer response. Through two studies in three countries, this research sheds light on consumer logo preferences, by investigating the psychological properties of the figurativeness of logo design. Results showed that figurativeness is an essen...

  19. Pole Shape Optimization of Permanent Magnet Synchronous Motors Using the Reduced Basis Technique

    Directory of Open Access Journals (Sweden)

    A. Jabbari

    2010-03-01

    Full Text Available In the present work, an integrated method of pole shape design optimization for reduction of torque pulsation components in permanent magnet synchronous motors is developed. A progressive design process is presented to find feasible optimal shapes. This method is applied on the pole shape optimization of two prototype permanent magnet synchronous motors, i.e., 4-poles/6-slots and 4-poles-12slots.

  20. [The splenic inferior pole of rats and hyperbaric oxygen].

    Science.gov (United States)

    Paulo, Isabel Cristina Andreatta Lemos; Paulo, Danilo Nagib Salomão; Ferrari, Thiago Antunes; Azeredo, Thiago Caetano Valadão de; Silva, Alcino Lázaro da

    2008-01-01

    To study the functional and morphological features of the lower pole of the spleen in rats submitted, or not, to postoperative hyperbaric oxygen therapy. Seventy-nine Wistar rats, weighing 248.7 +/- 27 g, divided into two groups [group A - simulation (n=40), group B - lower pole (n=39)] underwent surgery and were subdivided into two groups: 11 and 70 postoperative days. Each subgroup was subdivided into animals not treated (nt) (A11nt, n=10; B11nt, n=13; A70nt, n=10; B70nt, n=9) and treated with hyperbaric oxygen (t) (A11t, n=10; B11t, n=9; A70t, n=10; B70t, n=8). Blood was collected for measurement of lipids and immunoglobulins, platelet and Howell-Jolly body count before and after surgery. The spleen and lower pole were removed for histology. There was an increase of total cholesterol (p=0.002), VLDL-cholesterol and triglycerides (p=0.003) and of LDL-cholesterol (p=0.013) in subgroup B11nt, and no alterations were observed in the other subgroups. IgM decreased in subgroups B11t (p=0.007), B11nt (p=0.0000), B70nt (p=0.0005), B70t (p=0.02), and no change was observed in the simulation group. The number of platelets increased in subgroups B11nt (p=0.002) and B11t (p=0.01) and remained unchanged in the other subgroups. Howell-Jolly bodies were less numerous in subgroup B70nt than in subgroup B11nt (p=0.019). Lower pole viability was better in subgroup B11t than in B11nt and in subgroup B70 than in B11, and did not differ between subgroups B70t and B70nt. Function and viability of the remaining lower pole improved during the late postoperative period. Viability and function of the lower pole were better during the early but not during the late postoperative period, in animals submitted to hyperbaric oxygen therapy.

  1. Beyond captions: linking figures with abstract sentences in biomedical articles.

    Directory of Open Access Journals (Sweden)

    Joseph P Bockhorst

    Full Text Available Although figures in scientific articles have high information content and concisely communicate many key research findings, they are currently under utilized by literature search and retrieval systems. Many systems ignore figures, and those that do not typically only consider caption text. This study describes and evaluates a fully automated approach for associating figures in the body of a biomedical article with sentences in its abstract. We use supervised methods to learn probabilistic language models, hidden Markov models, and conditional random fields for predicting associations between abstract sentences and figures. Three kinds of evidence are used: text in abstract sentences and figures, relative positions of sentences and figures, and the patterns of sentence/figure associations across an article. Each information source is shown to have predictive value, and models that use all kinds of evidence are more accurate than models that do not. Our most accurate method has an F1-score of 69% on a cross-validation experiment, is competitive with the accuracy of human experts, has significantly better predictive accuracy than state-of-the-art methods and enables users to access figures associated with an abstract sentence with an average of 1.82 fewer mouse clicks. A user evaluation shows that human users find our system beneficial. The system is available at http://FigureItOut.askHERMES.org.

  2. Beyond captions: linking figures with abstract sentences in biomedical articles.

    Science.gov (United States)

    Bockhorst, Joseph P; Conroy, John M; Agarwal, Shashank; O'Leary, Dianne P; Yu, Hong

    2012-01-01

    Although figures in scientific articles have high information content and concisely communicate many key research findings, they are currently under utilized by literature search and retrieval systems. Many systems ignore figures, and those that do not typically only consider caption text. This study describes and evaluates a fully automated approach for associating figures in the body of a biomedical article with sentences in its abstract. We use supervised methods to learn probabilistic language models, hidden Markov models, and conditional random fields for predicting associations between abstract sentences and figures. Three kinds of evidence are used: text in abstract sentences and figures, relative positions of sentences and figures, and the patterns of sentence/figure associations across an article. Each information source is shown to have predictive value, and models that use all kinds of evidence are more accurate than models that do not. Our most accurate method has an F1-score of 69% on a cross-validation experiment, is competitive with the accuracy of human experts, has significantly better predictive accuracy than state-of-the-art methods and enables users to access figures associated with an abstract sentence with an average of 1.82 fewer mouse clicks. A user evaluation shows that human users find our system beneficial. The system is available at http://FigureItOut.askHERMES.org.

  3. Structural Configuration of Myelin Figures Using Fluorescence Microscopy

    Directory of Open Access Journals (Sweden)

    Lobat Tayebi

    2012-01-01

    Full Text Available Using epifluorescence microscopy, the configuration of myelin figures that are formed upon hydration of lipid stack was studied qualitatively. Little knowledge is currently available for conditions that determine the diameter of myelin figures and their degree of multilamellarity. Examining more than 300 samples, we realized that there are distinct populations of myelin figures protruding from discrete regions of lipid stack. Each population contains myelin figures with similar diameters. This indicates a direct relationship between local characteristics of parent lipid stack and the diameter of myelin figures. Evidenced by fluorescent images, we classified all the observed myelin figures into three major groups of (1 solid tubes, (2 thin tethers, and (3 hollow tubes. Solid tubes are the most common structure of myelin figures which appeared as dense shiny cylinders. Thin tethers, with long hair-shaped structure, were observed protruding from part of lipid plaque which is likely to be under tension. Hollow tubes were protruded from the parts that are unpinned from the substrate and possibly under low or no tension. The abrupt change in the configuration of myelin figures from solid tubes to hollow ones was described in a reproducible experiment where the pinned region of the parent stack became unpinned. Our observations can indicate a relation between the membrane tension of the source material and the diameter of the myelin figures.

  4. Rumsey and Walker_AMT_2016_Figure 2.xlsx

    Data.gov (United States)

    U.S. Environmental Protection Agency — Figure summarizes uncertainty (error) in hourly gradient flux measurements by individual analyte. Flux uncertainty is derived from estimates of uncertainty in...

  5. Generation of coordinates in PC for graphics of polar figure; Generacion de coordenadas en microcomputadora para graficado de figura polar

    Energy Technology Data Exchange (ETDEWEB)

    Macias B, L.R

    1991-10-15

    The preferential orientation, not alone it exists in metals, but also in minerals or in general in crystalline materials, notwithstanding in the metals it can be transformed by means of those processes of having mechanical worked such as laminate, wrapping, etc. To the preferable orientation of the crystals is also known as texture and since the properties of the crystalline materials lens depend on the orientation that present its glasses, it is important to know its texture. The difficulty for to represent and to describe the grade of preferential orientation in textured materials take to F. Weber to adapt the stereo graphic projection of a monocrystal to a poles figure. Later on, its appeared but methods to obtain the polar figure, among them, that of reflection of L. G. Schultz, but again a technique appears it specifies for its obtaining. In all the cases, the methodology is the following one: a) It is obtained by means of the diffraction process, the correspondent spectra in digitized form. b) it is applied process of having softened mathematician of the spectrum. c) there are determined the fi coordinates, beta and intensity for graph nts of the polar figure. d) Its are graph the points generated in c obtaining the polar figures. The objective of this work, is leaving of a softened spectra, to generate the coordinated fi, beta and corresponding intensity to proceed to their graph and generation of the polar figure. In this specific work, the methodology of Philips is used that consists in making a sweeping in hairspring form with the radiation to detect in these points the execution of the Bragg law. (Author)

  6. Effect of Materials and Manufacturing on the Bending Stiffness of Vaulting Poles

    Science.gov (United States)

    Davis, C. L.; Kukureka, S. N.

    2012-01-01

    The increase in the world record height achieved in pole vaulting can be related to the improved ability of the athletes, in terms of their fitness and technique, and to the change in materials used to construct the pole. For example in 1960 there was a change in vaulting pole construction from bamboo to glass fibre reinforced polymer (GFRP)…

  7. Finite element modeling of small-scale tapered wood-laminated composite poles with biomimicry features

    Science.gov (United States)

    Cheng Piao; Todd F. Shupe; R.C. Tang; Chung Y. Hse

    2008-01-01

    Tapered composite poles with biomimicry features as in bamboo are a new generation of wood laminated composite poles that may some day be considered as an alternative to solid wood poles that are widely used in the transmission and telecommunication fields. Five finite element models were developed with ANSYS to predict and assess the performance of five types of...

  8. The Neville-Aitken formula for rational interpolants with prescribed poles

    Science.gov (United States)

    Carstensen, C.; Mühlbach, G.

    1992-12-01

    Using a polynomial description of rational interpolation with prescribed poles a simple purely algebraic proof of a Neville-Aitken recurrence formula for rational interpolants with prescribed poles is presented. It is used to compute the general Cauchy-Vandermonde determinant explicitly in terms of the nodes and poles involved.

  9. Mechanical properties of small-scale laminated wood composite poles: effects of taper and webs

    Science.gov (United States)

    Cheng Piao; Todd F. Shupe; R.C. Tang; Chung Y. Hse

    2006-01-01

    Laminated hollow wood composite poles represent an efficient utilization of the timber resource and a promising alternative for solid poles that are commonly used in the power transmission and telecommunication lines. The objective of this study was to improve the performance of composite poles by introducing the bio-mimicry concept into the design of hollow wood...

  10. Sample Return Mission to the South Pole Aitken Basin

    Science.gov (United States)

    Duke, M. B.; Clark, B. C.; Gamber, T.; Lucey, P. G.; Ryder, G.; Taylor, G. J.

    1999-01-01

    The South Pole Aitken Basin (SPA) is the largest and oldest observed feature on the Moon. Compositional and topographic data from Galileo, Clementine, and Lunar Prospector have demonstrated that SPA represents a distinctive major lunar terrane, which has not been sampled either by sample return missions (Apollo, Luna) or by lunar meteorites. The floor of SPA is characterized by mafic compositions enriched in Fe, Ti, and Th in comparison to its surroundings. This composition may represent melt rocks from the SPA event, which would be mixtures of the preexisting crust and mantle rocks. However, the Fe content is higher than expected, and the large Apollo basin, within SPA, exposes deeper material with lower iron content. Some of the Fe enrichment may represent mare and cryptomare deposits. No model adequately accounts for all of the characteristics of the SPA and disagreements are fundamental. Is mantle material exposed or contained as fragments in melt rock and breccias? If impact melt is present, did the vast sheet differentiate? Was the initial mantle and crust compositionally different from other regions of the Moon? Was the impact event somehow peculiar, (e.g., a low-velocity impact)? The precise time of formation of the SPA is unknown, being limited only by the initial differentiation of the Moon and the age of the Imbrium event, believed to be 3.9 b.y. The questions raised by the SPA can be addressed only with detailed sample analysis. Analysis of the melt rocks, fragments in breccias, and basalts of SPA can address several highly significant problems for the Moon and the history of the solar system. The time of formation of SPA, based on analysis of melt rocks formed in the event. would put limits on the period of intense bombardment of the Moon, which has been inferred by some to include a "terminal cataclysm." If close to 3.9 Ga, the presumed age of the Imbrium Basin, the SPA date would confirm the lunar cataclysm. This episode, if it occurred, would have

  11. Claw-pole Synchronous Generator for Compressed Air Energy Storage

    Directory of Open Access Journals (Sweden)

    PAVEL Valentina

    2013-05-01

    Full Text Available This paper presents a claw-poles generator for compressed air energy storage systems. It is presented the structure of such a system used for compensating of the intermittency of a small wind energy system. For equipping of this system it is chosen the permanent magnet claw pole synchronous generator obtained by using ring NdFeB permanentmagnets instead of excitation coil. In such a way the complexity of the scheme is reduced and the generator become maintenance free. The new magnetic flux density in the air-gap is calculated by magneticreluctance method and by FEM method and the results are compared with measured values in the old and new generator.

  12. Study of recursive model for pole-zero cancellation circuit

    International Nuclear Information System (INIS)

    Zhou Jianbin; Zhou Wei; Hong Xu; Hu Yunchuan; Wan Xinfeng; Du Xin; Wang Renbo

    2014-01-01

    The output of charge sensitive amplifier (CSA) is a negative exponential signal with long decay time which will result in undershoot after C-R differentiator. Pole-zero cancellation (PZC) circuit is often applied to eliminate undershoot in many radiation detectors. However, it is difficult to use a zero created by PZC circuit to cancel a pole in CSA output signal accurately because of the influences of electronic components inherent error and environmental factors. A novel recursive model for PZC circuit is presented based on Kirchhoff's Current Law (KCL) in this paper. The model is established by numerical differentiation algorithm between the input and the output signal. Some simulation experiments for a negative exponential signal are carried out using Visual Basic for Application (VBA) program and a real x-ray signal is also tested. Simulated results show that the recursive model can reduce the time constant of input signal and eliminate undershoot. (authors)

  13. On the ultimate uncertainty of the top quark pole mass

    Energy Technology Data Exchange (ETDEWEB)

    Beneke, M. [Technische Univ. Muenchen, Garching (Germany). Physik-Department; Marquard, P. [Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany); Nason, P. [INFN, Sezione di Milano Bicocca (Italy); Steinhauser, M. [Karlsruher Institut fuer Technologie (Germany). Inst. fuer Theoretische Teilchenphysik

    2016-05-15

    We combine the known asymptotic behaviour of the QCD perturbation series expansion, which relates the pole mass of a heavy quark to the MS mass, with the exact series coefficients up to the four-loop order to determine the ultimate uncertainty of the top-quark pole mass due to the renormalon divergence. We perform extensive tests of our procedure by varying the number of colours and flavours, as well as the scale of the strong coupling and the MS mass, and conclude that this uncertainty is around 70 MeV. We further estimate the additional contribution to the mass relation from the five-loop correction and beyond to be 250 MeV.

  14. Development of a 10-m wedged-pole undulator

    International Nuclear Information System (INIS)

    Robinson, K.E.; Gottschalk, S.C.; James, F.E.; Quimby, D.C.; Slater, J.M.; Valla, A.S.

    1989-01-01

    A 10-m rare earth permanent magnet hybrid undulator called a near infrared scalable undulator system (NISUS) is under construction at Spectra Technology for use in the Boeing FEL program series. The design was optimized for operation at a 1-μm wavelength with the Boeing accelerator parameters. A remotely adjustable compound taper is utilized to achieve optimum startup gain and high saturated extraction. A summary of the relevant design parameters is listed. A major goal was to build NISUS from modules which would allow easy scaling to longer lengths without redesign. Prototype tests for verification of field strength and quality are complete as well as the delivery and installation of the initial 5 m. Improvements relative to the technology used in the earlier tapered hybrid undulator (THUNDER) are highlighted. The wedged-pole configuration is employed for a major increase in field strength while operating the poles farther from saturation

  15. Contributions to the deployment of furniture in pole central region Tocantins

    Directory of Open Access Journals (Sweden)

    Jorge D’ Ambros

    2012-09-01

    Full Text Available This study was developed in the central region of Tocantins, for the identification and analysis of positive factors, weaknesses, opportunities and threats associated with the furniture supply chain in order to continue the formation of the regional furniture pole. To achieve this objective the methodology used was to listen to local actors and experts in the furniture segment. Seventy-five local actors among industry officials, academic institutions and university representatives were interviewed. They pointed out and analyzed the main points related to the economic, social, political and environmental contributions stemming from the creation of a pole in the region. The tool used was the SWOT Analysis associated with the Method of Judges, and then the variables were subjected to Principal Component Analysis - PCA. The SWOT Matrix proved to be adequate and effective to be used as diagnostic tool along with local actors. The examination of all the factors associated with local furniture production chain helped to understand the activity and indicate actions that affect this arrangement and that will bring economic, social and environmental benefits. According to the experts, the establishment of a furniture industry in the region will favor the employment and income creation, local and regional sustainable development, improvements in business management, raise the standard of quality and productivity of the local furniture industry and improve the quality of population standard of living.

  16. Blurring the Edges: Ricoeur and Rothko on Metaphorically Figuring the Non-Figural

    Directory of Open Access Journals (Sweden)

    B. Keith Putt

    2017-02-01

    Full Text Available This essay examines Ricœur’s mimetic and transfigurative perspective on non-objective art and adopts it as an idiom for examining Mark Rothko’s artistic intention in the multiform canvases of his “classical” period from 1949 until his death in 1970. Rothko unequivocally denied being an abstractionist, a colorist, or a formalist, insisting, on the contrary, that he desired to communicate discrete dimensions of experience and emotions to his viewers, specifically, experiences of the sacred and the spiritual. His large canvases, with their blurred edges, force the spectator into an intimacy of experience that opens the potentiality of heterogeneous interpretations. In other words, one might consider his paintings to be metaphors of dense meanings that imitate reality, not through facile representation, but through a Kierkegaardian repetition of worlds that track Ricœur’s own ideas of prefiguration, configuration, and re-figuration. I contend in this essay that Rothko’s “abstract expressionism” adequately illustrates Ricœur’s contention that non-figurative art succeeds far better than representational art in refiguring new worlds of meaning.

  17. Tööpuudus 29%, palavikku pole / Rachel Donadio

    Index Scriptorium Estoniae

    Donadio, Rachel

    2010-01-01

    Lõuna-Hispaanias asuvas Cádizis on töötus 29%, ometi pole eurotsooni kõrgeim tööpuuduse määr tekitanud linnas sügavat sotsiaalset rahutust ega massilisi proteste, sest üsna kõrge elukvaliteedi tagavad töötutele kompleksne turvavõrk, mis koosneb varimajandusest, perekonna toetusest ja valitsuse toetusest

  18. Development of a superconducting claw-pole motor

    International Nuclear Information System (INIS)

    Watanabe, E.; Kikukawa, K.; Satoh, Y.; Torii, S.

    2008-01-01

    We have developed and produced a superconducting claw-pole motor for a trial purpose as a method to make the best use of the characteristic of superconductivity without collector rings or rotating superconducting coils that need to be cryocooled, and made some examinations. The unique feature in this motor is to have the mechanism that supports the reaction magnetic force generated in the axial direction

  19. Multiple mechanisms regulate NuMA dynamics at spindle poles.

    Science.gov (United States)

    Kisurina-Evgenieva, Olga; Mack, Gary; Du, Quansheng; Macara, Ian; Khodjakov, Alexey; Compton, Duane A

    2004-12-15

    The large coiled-coil protein NuMA plays an essential role in organizing microtubule minus ends at spindle poles in vertebrate cells. Here, we use both in vivo and in vitro methods to examine NuMA dynamics at mitotic spindle poles. Using fluorescence recovery after photobleaching, we show that an exogenously expressed green-fluorescent-protein/NuMA fusion undergoes continuous exchange between soluble and spindle-associated pools in living cells. These dynamics require cellular energy and display an average half-time for fluorescence recovery of approximately 3 minutes. To explore how NuMA dynamics at spindle poles is regulated, we exploited the association of NuMA with microtubule asters formed in mammalian mitotic extracts. Using a monoclonal antibody specific for human NuMA, we followed the fate of human NuMA associated with microtubule asters upon dilution with a hamster mitotic extract. Consistent with in vivo data, this assay shows that NuMA can be displaced from the core of pre-assembled asters into the soluble pool. The half-time of NuMA displacement from asters under these conditions is approximately 5 minutes. Using this assay, we show that protein kinase activity and the NuMA-binding protein LGN regulate the dynamic exchange of NuMA on microtubule asters. Thus, the dynamic properties of NuMA are regulated by multiple mechanisms including protein phosphorylation and binding to the LGN protein, and the rate of exchange between soluble and microtubule-associated pools suggests that NuMA associates with an insoluble matrix at spindle poles.

  20. Clusters of cyclones encircling Jupiter’s poles

    Science.gov (United States)

    Adriani, A.; Mura, A.; Orton, G.; Hansen, C.; Altieri, F.; Moriconi, M. L.; Rogers, J.; Eichstädt, G.; Momary, T.; Ingersoll, A. P.; Filacchione, G.; Sindoni, G.; Tabataba-Vakili, F.; Dinelli, B. M.; Fabiano, F.; Bolton, S. J.; Connerney, J. E. P.; Atreya, S. K.; Lunine, J. I.; Tosi, F.; Migliorini, A.; Grassi, D.; Piccioni, G.; Noschese, R.; Cicchetti, A.; Plainaki, C.; Olivieri, A.; O’Neill, M. E.; Turrini, D.; Stefani, S.; Sordini, R.; Amoroso, M.

    2018-03-01

    The familiar axisymmetric zones and belts that characterize Jupiter’s weather system at lower latitudes give way to pervasive cyclonic activity at higher latitudes. Two-dimensional turbulence in combination with the Coriolis β-effect (that is, the large meridionally varying Coriolis force on the giant planets of the Solar System) produces alternating zonal flows. The zonal flows weaken with rising latitude so that a transition between equatorial jets and polar turbulence on Jupiter can occur. Simulations with shallow-water models of giant planets support this transition by producing both alternating flows near the equator and circumpolar cyclones near the poles. Jovian polar regions are not visible from Earth owing to Jupiter’s low axial tilt, and were poorly characterized by previous missions because the trajectories of these missions did not venture far from Jupiter’s equatorial plane. Here we report that visible and infrared images obtained from above each pole by the Juno spacecraft during its first five orbits reveal persistent polygonal patterns of large cyclones. In the north, eight circumpolar cyclones are observed about a single polar cyclone; in the south, one polar cyclone is encircled by five circumpolar cyclones. Cyclonic circulation is established via time-lapse imagery obtained over intervals ranging from 20 minutes to 4 hours. Although migration of cyclones towards the pole might be expected as a consequence of the Coriolis β-effect, by which cyclonic vortices naturally drift towards the rotational pole, the configuration of the cyclones is without precedent on other planets (including Saturn’s polar hexagonal features). The manner in which the cyclones persist without merging and the process by which they evolve to their current configuration are unknown.

  1. Coherence between geophysical excitations and celestial pole offsets

    Czech Academy of Sciences Publication Activity Database

    Ron, Cyril; Vondrák, Jan

    2011-01-01

    Roč. 8, č. 3 (2011), s. 243-247 ISSN 1214-9705. [Czech-Polish Workshop on Recent Geodynamics of the Sudeten and Adjacent Areas. Třešť, 04.11.2010-06.11. 2010] R&D Projects: GA ČR GA205/08/0908 Institutional research plan: CEZ:AV0Z10030501 Keywords : geophysical excitations * celestial pole offsets * coherence Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics Impact factor: 0.530, year: 2011

  2. Pole particles in Treder's tetrad theory

    Energy Technology Data Exchange (ETDEWEB)

    Fuchs, H.

    1977-01-01

    In the framework of Treder's tetrad theory of gravitation the interaction of pole-particles is considered in post-Newtonian approximation. The perihelion shift for the two-body problems is calculated for different matter-field-couplings. In general it depends not only from the sum of the masses but also from the reduced mass. The additional term is connected with the absorption of gravitation.

  3. Seasonal Evolution of Titan's South Pole 220 cm-1 Cloud

    Science.gov (United States)

    Jennings, Donald

    2016-06-01

    A cloud of ices that had been seen only in Titan's north during winter began to emerge at the south pole in 2012. Discovered by Voyager IRIS as an emission feature at 220 cm-1, the cloud has been studied extensively in both the north and south by Cassini CIRS. The spectral feature acts as a tracer of the seasonal changes at Titan's poles, relating to evolving composition, temperature structure and dynamics. Although candidates have been proposed, the chemical makeup of the cloud has never been identified. The cloud is composed of condensates derived from gases created at high altitude and transported to the cold, shadowed pole. In the north the cloud has diminished gradually over the Cassini mission as Titan has transitioned from winter to spring. The southern cloud, on the other hand, grew rapidly after 2012. By late 2014 it had developed a complex ring structure that was confined to latitudes poleward of 70°S within the deep temperature well that had formed at the south pole [1]. The location of the cloud coincides in latitude with the HCN cloud reported by ISS and VIMS [2,3]. CIRS also saw enhanced gas emissions at those latitudes [4]. When it first formed, the cloud was abundant at altitudes as high as 250 km, while later it was found mostly at 100-150 km, suggesting that the material that had been deposited from above had gathered at the lower altitudes. Radiance from the southern cloud increased until mid-2015 and since then has decreased. The cloud may be transitioning to the more uniform hood morphology familiar in the north. Taking the north and south together, by the end of the Cassini mission in 2017 we will have observed almost an entire seasonal cycle of the ice cloud.

  4. Pole mass, width, and propagators of unstable fermions

    International Nuclear Information System (INIS)

    Kniehl, B.A.; Sirlin, A.

    2008-01-01

    The concepts of pole mass and width are extended to unstable fermions in the general framework of parity-nonconserving gauge theories, such as the Standard Model. In contrast with the conventional on-shell definitions, these concepts are gauge independent and avoid severe unphysical singularities, properties of great importance since most fundamental fermions in nature are unstable particles. General expressions for the unrenormalized and renormalized dressed propagators of unstable fermions and their field-renormalization constants are presented. (orig.)

  5. Performance study of quadrupole with broken line profile pole tip

    International Nuclear Information System (INIS)

    Fan Mingwu; Zhang Tianjue; Chu Chengjie

    1997-01-01

    Most of quadrupole used for beam focusing possess hyperbola profile tip. To simplify machining processes and ensure the assembling accuracy, a broken line profile pole tip is adapted instead of hyperbola. The results of the magnetic field simulation codes and the tests show the good quality field generated by such configuration: not only more uniform field gradient, but also field more concentrated at useful area. These types of quadrupole are used at CYCIAE-30 cyclotron and HI-13 tandem transportation lines

  6. Edgar Savisaar : BRS pole piisavalt investeerinud / Raigo Neudorf

    Index Scriptorium Estoniae

    Neudorf, Raigo

    2006-01-01

    Majandus- ja kommunikatsiooniminister on rahul, et riigi ja BRS-iga saavutati kokkulepe ettevõtte aktsiate tagasiostuks, kuid leiab, et BRS pole täitnud võetud investeerimiskohustusi ning seega peab järgnevatel aastatel suunama ettevõtte kaasajastamisse miljardeid kroone. Vt. samas: Jüri Käo: investeeringute kogumaht ületas nõutu; Savisaar: Jüri Käo ajab pada; Pingelised läbirääkimised BRS-iga

  7. Volume of Impact Melt Generated by the Formation of the South Pole-Aitken Basin

    Science.gov (United States)

    Petro, Noah E.

    2011-01-01

    The South Pole-Aitken Basin (SPA) is the largest, deepest, and oldest identified basin on the Moon and as such contains surfaces that are unique due to their age, composition, and depth of origin in the lunar crust [1-5] (Figure 1). SPA has been a target of intense interest as an area for robotic sample return in order to determine the age of the basin and the composition and origin of its interior [6-8]. In response to this interest there have been several efforts to estimate the likely provenance of regolith material within central SPA [9-12]. These model estimates suggest that, despite the formation of basins and craters following SPA, the regolith within SPA is dominated by locally derived material. An assumption of these models has been that the locally derived material is primarily SPA impact-melt as opposed to local basement material (e.g. unmelted lower crust). However, the definitive identification of SPA derived impact melt on the basin floor, either by remote sensing [5, 13] or via photogeology [2, 14] is extremely difficult due to the number of subsequent impacts and volcanic activity [4].

  8. Key Figures on Climate France and Worldwide 2011 Edition

    International Nuclear Information System (INIS)

    2011-01-01

    Each year, CDC Climate Research publishes in partnership with the French Ministry of Ecology, Sustainable Development, Transport and Housing (MEDDTL) the Key Figures on Climate - France and Worldwide, in the Highlights Series. This publication aims at gathering all the relevant data relating the scientific analysis of climate change, greenhouses gas emissions, in particular CO 2 emissions linked to energy use, and the emissions reduction-targeted economic policies. Contents: Part 1 - Climate Change: The Greenhouse Effect - Humans and the Greenhouse Effect - Stocks and Flows of GHGs: The Example of CO 2 - Increase in Atmospheric GHG Levels - Concentrations and Temperatures - Global Warming - Warming Differentiated by Latitude - Consequences of Global Warming. Part 2 - Greenhouse Gas Emissions: Snapshot of Global GHG Emissions - European Panorama of GHGs - French Panorama of GHGs. Part 3 - Energy-related CO 2 Emissions in the World: Energy-related CO 2 emissions - CO 2 Emissions due to Electricity Production including CHP Plants - CO 2 Emission Factors. Part 4 - CO 2 Emissions by Sector in Europe and in France: Fuel Combustion: the Largest Emitter of CO 2 - CO 2 Emissions due to Energy Production and Conversion - Transportation-related CO 2 Emissions - Industry-related CO 2 Emissions - CO 2 Emissions in the Other Sectors - CO 2 Emissions excluding Fuel Combustion. Part 5 - Climate Policies: The Kyoto Protocol - The Tradable Permit Market - Project Mechanisms of the Kyoto Protocol - Other Initiatives to Reduce Emissions - The European Union's Commitment - The European CO 2 Market (EU ETS) - The Carbon Price in the EU ETS - States Climate Policy: The Case of France. Practical information: CO 2 Key Figures - Glossary of Terms - Useful Links

  9. Estudio y análisis de las obligaciones y responsabilidades de la figura del promotor en el sector de la construcción en 22 países = Study and analysis of the obligations and responsibilities of the promoter figure in the construction sector in 22 countries

    Directory of Open Access Journals (Sweden)

    Iván Martín

    2016-08-01

    Full Text Available El presente estudio es un primer análisis de la sistemática de trabajo llevada cabo por los promotores en el sector de la edificación a nivel internacional y su relación con la prevención. Para ello se ha pretendido conocer la problemática existente en la integración de la prevención por parte de los promotores como elemento clave en la integración preventiva, realizando dos análisis: uno cualitativo, donde se ha pretendido conocer la situación jurídica sobre la figura del promotor en materia preventiva (centrado el presente artículo en Reino Unido y un segundo análisis cuantitativo donde se ha analizado el resultado de la implantación de una metodología de gestión por parte del promotor como figura integradora de la prevención a lo largo de las distintas fases del proceso constructivo, especialmente en la fase de ejecución.Abstract This study is the first systematic analysis of the work carried out by the promoters in the building sector at international level and its relationship with prevention. To this end, it has aimed to know the problems in the integration of prevention by promoters as a key element in preventive integration, performing two analyzes: one qualitative, where it has aimed to know the status on the figure of the promoter on preventive (centered this article in the UK and a second quantitative analysis which analyzed the results of the implementation of a management methodology by the developer as an integrating figure prevention throughout the various phases of the construction process, especially in the implementation phase.

  10. FIGURES OF SPEECH MINANGKABAU LOCALITY IN CARITO MINANG KINI BY HAKIMAH RAHMAH S. IN PADANG EKSPRES

    Directory of Open Access Journals (Sweden)

    Hasnul Fikri

    2017-10-01

    Full Text Available The research aimed to describe the locality style of Minangkabau in anecdotal texts “Carito Minang Kini: Barinam jo Rosalina” by Hakimah Rahmah S. in Padang Ekspres (CMK: BJR, which includes rhetoric devices and figures of speech. The type of research is qualitative descriptive which applied content analysis method. The research data are words, phrases, clauses, or sentences that can be formulated as a locality style of Minangkabau. The data source of this research is anecdotal texts in CMK: BJR issued in January and February 2016 consisting of eight issues. The data analysis was conducted by: (1 classifying the locality style of Minangkabau found in a rhetorical assertion and figures of speech based on the theory, (2 analyzing the style according to the subcategory of rhetoric devices and figures of speech of Minangkabau locality style, (3 interpreting the trends of locality style of Minangkabau in texts CMK: BJR, and (4 concluding the study. The findings show that in the texts CMK: BJR there are: (1 the locality rhetoric devices which consist of: (a confirmation in the form of climax, redundancy, and hyperbole and (b disputes in the form of an antithesis; (2 the locality figures of speech that consist of (a a comparison in the form of metaphor and allusion, and (b satire in the form of sarcasm, cynicism and irony. Among the styles that were found, the dominant locality rhetoric device is affirmation in the form of hyperbole and the dominant figurative language style is satire in the form of sarcasm.

  11. Background Studies for Acoustic Neutrino Detection at the South Pole

    Science.gov (United States)

    Abbasi, R.; Abdou, Y.; Abu-Zayyad, T.; Adams, J.; Aguilar, J. A.; Ahlers, M.; Andeen, K.; Auffenberg, J.; Bai, X.; Baker, M.; hide

    2012-01-01

    The detection of acoustic signals from ultra-high energy neutrino interactions is a promising method. to measure the flux of cosmogenic neutrinos expected on Earth. The energy threshold for this process depends strongly on the absolute noise level in the target material. The South Pole Acoustic Test Setup (SPATS). deployed in the upper part of four boreholes of the IceCube Neutrino Observatory, has monitored the noise in Antarctic ice at the geographic South Pole for more than two years down to 500 m depth. The noise is very stable and Gaussian distributed, Lacking an in situ calibration up to now, laboratory measurements have been used to estimate the absolute noise level in the 10-50 kHz frequency range to be smaller than 20 mPa. Using a threshold trigger. sensors of the South Pole Acoustic Test Setup registered acoustic events in the IceCube detector volume and its vicinity. Acoustic signals from refreezing IceCube holes and from anthropogenic sources have been used to test the localization of acoustic events. An upper limit on the neutrino flux at energies E(sub v) > 10(exp 11) GeV is derived from acoustic data taken over eight months.

  12. Factorization and resummation for collinear poles in QCD amplitudes

    Energy Technology Data Exchange (ETDEWEB)

    Dixon, Lance J.; Magnea, Lorenzo; Sterman, George

    2008-05-28

    We study the origin of subleading soft and collinear poles of form factors and amplitudes in dimensionally-regulated massless gauge theories. In the case of form factors of fundamental fields, these poles originate from a single function of the coupling, denoted G({alpha}{sub s}), depending on both the spin and gauge quantum numbers of the field. We relate G({alpha}{sub s}) to gauge-theory matrix elements involving the gluon field strength. We then show that G({alpha}{sub s}) is the sum of three terms: a universal eikonal anomalous dimension, a universal non-eikonal contribution, given by the coefficient B{sub {delta}}({alpha}{sub s}) of {delta}(1-z) in the collinear evolution kernel, and a process-dependent short-distance coefficient function, which does not contribute to infrared poles. Using general results on the factorization of soft and collinear singularities in fixed-angle massless gauge theory amplitudes, we conclude that all such singularities are captured by the eikonal approximation, supplemented only by the knowledge of B{sub {delta}}({alpha}{sub s}). We explore the consequences of our results for conformal gauge theories, where in particular we find a simple exact relation between the form factor and the cusp anomalous dimension.

  13. Automatic Pole and Q-Value Extraction for RF Structures

    Energy Technology Data Exchange (ETDEWEB)

    C. Potratz, H.-W. Glock, U. van Rienen, F. Marhauser

    2011-09-01

    The experimental characterization of RF structures like accelerating cavities often demands for measuring resonant frequencies of Eigenmodes and corresponding (loaded) Q-values over a wide spectral range. A common procedure to determine the Q-values is the -3dB method, which works well for isolated poles, but may not be applicable directly in case of multiple poles residing in close proximity (e.g. for adjacent transverse modes differing by polarization). Although alternative methods may be used in such cases, this often comes at the expense of inherent systematic errors. We have developed an automation algorithm, which not only speeds up the measurement time significantly, but is also able to extract Eigenfrequencies and Q-values both for well isolated and overlapping poles. At the same time the measurement accuracy may be improved as a major benefit. To utilize this procedure merely complex scattering parameters have to be recorded for the spectral range of interest. In this paper we present the proposed algorithm applied to experimental data recorded for superconducting higher-order-mode damped multi-cell cavities as an application of high importance.

  14. Figure 1. Associations between pre-ART clinical and laboratory ...

    Indian Academy of Sciences (India)

    First page Back Continue Last page Graphics. Figure 1. Associations between pre-ART clinical and laboratory characteristics with subsequent TB-IRIS events. Figure 1. Associations between pre-ART clinical and laboratory characteristics with subsequent TB-IRIS events.

  15. A new principle of figure-ground segregation : The accentuation

    NARCIS (Netherlands)

    Pinna, Baingio; Reeves, Adam; Koenderink, Jan; van Doorn, Andrea; Deiana, Katia

    2018-01-01

    The problem of perceptual organization was studied by Gestalt psychologists in terms of figure-ground segregation. In this paper we explore a new principle of figure-ground segregation: accentuation. We demonstrate the effectiveness of accentuation relative to other Gestalt principles, and also

  16. 16 CFR Figure 1 to Part 1511 - Pacifier Test Fixture

    Science.gov (United States)

    2010-01-01

    ... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Pacifier Test Fixture 1 Figure 1 to Part 1511 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL HAZARDOUS SUBSTANCES ACT REGULATIONS REQUIREMENTS FOR PACIFIERS Pt. 1511, Fig. 1 Figure 1 to Part 1511—Pacifier Test Fixture EC03OC91...

  17. Transformation of the Incomplete Figure in Young Children

    Science.gov (United States)

    Noda, Mitsuru

    2014-01-01

    This study aims to examine the developmental changes in young children's perception. A matching completion task consisting of three geometric figures and one bird-like figure were completed by children 3-5 years of age ("N" = 99). The rotation effect, in which the correct response decreased with orientation (45°, 90° 135°, and 180°), was…

  18. Distinguishing between Realistic and Fantastical Figures in Iran

    Science.gov (United States)

    Davoodi, Telli; Corriveau, Kathleen H.; Harris, Paul L.

    2016-01-01

    Children in the United States come to distinguish historical from fictional story figures between the ages of 3 and 5 years, guided by the plausibility of the story events surrounding the figure (Corriveau, Kim, Schwalen, & Harris, 2009; Woolley & Cox, 2007). However, U.S. children vary in their reactions to stories that include…

  19. 16 CFR Figure 6 to Part 1203 - Field of Vision

    Science.gov (United States)

    2010-01-01

    ... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Field of Vision 6 Figure 6 to Part 1203 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION CONSUMER PRODUCT SAFETY ACT REGULATIONS SAFETY STANDARD FOR BICYCLE HELMETS Pt. 1203, Fig. 6 Figure 6 to Part 1203—Field of Vision ER10MR98.006 ...

  20. Double conoscopic figures in total-internal-reflection prisms

    Science.gov (United States)

    Litvinova, M. N.; Stroganov, V. I.; Krishtop, V. V.; Alekseeva, L. V.; Pas'ko, P. G.

    2006-01-01

    This paper presents the results of a study of the features of the formation of double conoscopic figures in total-internal-reflection prisms. The conditions for the existence of double conoscopic figures in the absence of a polarizer and analyzer are explained. An experiment has been done with prisms fabricated from crystals of calcite, potassium dihydrogen phosphate (KDP) and lithium niobate.

  1. Figurative framing : Shaping public discourse through metaphor, hyperbole and irony

    NARCIS (Netherlands)

    Burgers, C.; Konijn, E.A.; Steen, G.J.

    2016-01-01

    Framing is an important concept in communication, yet many framing studies set out to develop frames relevant to only one issue. We expand framing theory by introducing figurative framing. We posit that figurative language types like metaphor, hyperbole and irony are important in shaping public

  2. Figurative framing: Shaping public discourse through metaphor, hyperbole and irony

    NARCIS (Netherlands)

    Burgers, C.F.; Konijn, E.A.; Steen, G.J.

    2016-01-01

    Framing is an important concept in communication, yet many framing studies set out to develop frames relevant to only one issue. We expand framing theory by introducing figurative framing. We posit that figurative language types like metaphor, hyperbole and irony are important in shaping public

  3. 47 CFR 90.309 - Tables and figures.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Tables and figures. 90.309 Section 90.309... MOBILE RADIO SERVICES Authorization in the Band 470-512 MHz (UHF-TV Sharing) § 90.309 Tables and figures... published for the area in question, the next best topographic information should be used. (5) Applicants for...

  4. Figures of Association and Sound in some Nigerian Proverbs ...

    African Journals Online (AJOL)

    Nekky Umera

    Figures of Association and Sound in some Nigerian. Proverbs: Examples from Ondo Culture. (Pp. 118-132). Akinmade, C. Arinola - Department of English, University of Jos. arinakinmade@yahoo.com. Abstract. Figures of Speech are expressions which depart from the acceptable literary sense that are employed to give ...

  5. The naked truth about my classical nude figures.

    Science.gov (United States)

    Burnett, Roger

    2002-02-28

    The story 'Concerns raised over nudes at cancer clinic' (news February 13) does not truly reflect the situation. Although the hospital authorities had concerns about placing the classical nude figures in the hospital environment, the overwhelming response from the public has been positive. Moreover, considerable support for the figures has come from cancer patients.

  6. Dynamic Reaction Figures: An Integrative Vehicle for Understanding Chemical Reactions

    Science.gov (United States)

    Schultz, Emeric

    2008-01-01

    A highly flexible learning tool, referred to as a dynamic reaction figure, is described. Application of these figures can (i) yield the correct chemical equation by simply following a set of menu driven directions; (ii) present the underlying "mechanism" in chemical reactions; and (iii) help to solve quantitative problems in a number of different…

  7. Spatial patterns of pollution associated with creosote treated poles in Mälardalen

    OpenAIRE

    Forselius, Ellen

    2015-01-01

    Creosote is a product name given to a mixture of several hundred compounds, which is often used to protect wooden poles from rot and insect damage, however it has also been linked to causing cancer in humans. Alternative materials for power poles include concrete, steel, composite and non-treated wooden poles. This report looks at Mälarenergi Elnät ABs 17,000 creosote coated poles and their patterns of pollution. GIS analyses in ArcGIS were used to evaluate which creosote poles are most criti...

  8. POLE-LIKE OBJECT EXTRACTION FROM MOBILE LIDAR DATA

    Directory of Open Access Journals (Sweden)

    H. Zheng

    2016-06-01

    Full Text Available Object detection and recognition from LiDAR (Light Detection And Ranging data has been a research topic in the fields of photogrammetry and computer vision. Unlike point clouds collected in well-controlled indoor environments, point clouds in urban environments are more complex due to complexity of the real world. For example, trees sometimes close to signs or buildings, which will cause occlusions in the point clouds. Current object detection or reconstruction algorithms will have problems when recognizing objects with severe occlusions caused by trees etc. In this paper, a robust vegetation removal method and a DBSCAN based pole-like object detection method are proposed. Based on observation that major difference between vegetation and other rigid objects is their penetrability with respect to LiDAR, we introduce a local roughness measure to differentiate rigid objects from non-rigid ones (vegetation in this paper. First, a local sphere with a small radius is generated for each input point. Three principal components of the local sphere are then calculated, and a plane is determined. The roughness is obtained through calculating the standard deviation of distances from all inside points to the plane by a weighted summation of the normalized distances. The further the point to the plane, the smaller the weight is. Finally, a graph cuts based method is introduced to classify the input point sets into two groups. The data term is defined by the normalized roughness of the current point, and the smoothness term is defined by the normalized distance between the point and its nearest neighbour point. In terms of pole-like object detection, first, a uniformed 2D grid is generated through projecting all the points to the XY-plane. The seed points of the pole-like objects are obtained by determining the x and y coordinates by the centres of the highest density cells of the grid and the z coordinate by the mean height of the point sets of each object

  9. Live imaging of spindle pole disorganization in docetaxel-treated multicolor cells

    International Nuclear Information System (INIS)

    Sakaushi, Shinji; Nishida, Kumi; Minamikawa, Harumi; Fukada, Takashi; Oka, Shigenori; Sugimoto, Kenji

    2007-01-01

    Treatment of cells with docetaxel at low concentrations induces aberrant bipolar spindles of which two centrosomes stay at only one pole, and also induces multipolar spindles. To gain insight into the relations between centrosome impairment and structural defects of the spindle, live-cell imaging was performed on a human MDA Auro/imp/H3 cell line in which centrosomes/mitotic spindles, nuclear membrane and chromatin were simultaneously visualized by fluorescent proteins. In the presence of docetaxel at IC 50 concentration, the centrosomes did not segregate, and multiple aster-like structures ectopically arose around the disappearing nuclear membrane. Those ectopic structures formed an acentrosomal pole opposing to the two-centrosomes-containing pole. In late metaphase, one pole often fragmented into multiple spindle poles, leading multipolar division. These results suggest that spindle pole fragility may be induced by centrosome impairment, and collapse of the pole may contribute to induction of aneuploid daughter cells

  10. Methanization - how to better figure out profitability

    International Nuclear Information System (INIS)

    Deschaseaux, Christelle

    2013-01-01

    This article discusses the content of a study to be published on the conditions of profitability for methanization installations, in order to enable the assessment of the influence of the modifications of different parameters such as purchase tariffs, subsidies, taxes, investment management and exploitation costs. An analysis has been performed on different categories of projects: farm projects (80 to 250 kW), collective farm projects with a small collective dwelling (350 kW) and local projects (1 to 2,5 MW), hybrid farm-industrial projects, and projects based only on industrial wastes. The analysis has been made with respect to final use: co-generation or bio-methane production. It appears that most of projects still need subsidies but that there is no correlation between installed power and production cost

  11. Figurative Language Comprehension in Individuals with Autism Spectrum Disorder: A Meta-Analytic Review

    Science.gov (United States)

    Kalandadze, Tamar; Norbury, Courtenay; Naerland, Terje; Naess, Kari-Anne B.

    2018-01-01

    We present a meta-analysis of studies that compare figurative language comprehension in individuals with autism spectrum disorder and in typically developing controls who were matched based on chronological age or/and language ability. A total of 41 studies and 45 independent effect sizes were included based on predetermined inclusion criteria.…

  12. Figurative Idiomatic Language: Strategies and Difficulties of Understanding English Idioms

    Directory of Open Access Journals (Sweden)

    Nisreen Al-Khawaldeh

    2016-11-01

    Full Text Available Learning idioms which is considered a very essential part of learning and using language (Sridhar and Karunakaran, 2013 has recently attracted a great attention of English learning researchers particularly the assessment of how well Asian language learners acquire and use idioms in communication (Tran, 2013. Understanding and using them fluently could be viewed as a sign towards language proficiency as they could be an effective way to give students better conditions to enhance their communication skills in the daily context (Beloussova, 2015. Investigating how idiomatic expressions are dealt with and processed in a second language or foreign language is an issue worth examining further since it may give language teachers a better idea of some of the strategies language learners use in order to interpret figurative language. Despite their importance, learning and using English idioms by Arab EFL learners have not been investigated extensively, and no research has been conducted on Jordanian students’ idiomatic competency. Thus, the researcher decided to work on these un-tackled issues in the Jordanian context. Most idioms-based investigations are the difficulties Jordanians learners of English face when translating them into Arabic (Hussein, Khanji, and Makhzoumi, 2000; Bataineh and Bataineh, 2002; Alrishan and Smadi, 2015. The analysis of the test showed students’ very poor idiomatic competence; particularly a very limited awareness of the most frequently used idioms despite their overwhelming desire to learn them. Data analysis of the questionnaire revealed the strategies students use and the problems they face in understanding and learning idioms.

  13. ‘Farm’ Animal Metaphors in Malay and Arabic Figurative Expressions: Implications for Language Learning

    Directory of Open Access Journals (Sweden)

    Sabariah MD Rashid

    2012-11-01

    Full Text Available Animals are commonly used in figurative expressions, such as proverbs and idioms. Their features, characteristics, and/or behaviours are employed as metaphors to convey certain meanings. This study sought to examine animal metaphors of Malay and Arabic figurative expressions.  Data examined comprised Malay figurative expressions such as simpulan bahasa (two-word idioms and peribahasa (proverbs, as well as Arabic figurative expressions such as istiarah (proverbs containing ‘farm’ animals, such as cow, donkey, horse and goat. The analysis focused on the description of animal images used in the expressions and their connotations. Findings of the study revealed some similarities and differences, in terms of the images and connotations used in the expressions of the two languages, which may be attributed to cultural differences. The differences reflected in the Malay and Arabic figurative expressions may contribute to the difficulty in grasping the meanings of the expressions amongst learners of these languages.Thus, it is essential that learners of each language be exposed to the elements related to the cultural differences of the two languages to help them understand the expressions better and become effective language learners.

  14. A Moessbauer study of an ancient pottery figure (Western-Han Dynasty)

    International Nuclear Information System (INIS)

    Zhou Yan; Dai Kaimei; Liu Rongchuan; Hsia Yuanfu; Jiang Zanchu

    1992-01-01

    The grey pottery figure manufactured in the Western-Han Dynasty (175-118 B.C.) and the clay gathered from the same site of Beidongshan in Xuzhou have been studied by X-ray Diffration (XRD), X-ray Fluorescence (XRF), and Moessbauer spectroscopy. They were simultaneously fired under the same conditions in different atmospheres at various temperature up to 1100degC. This study deals with the original firing atmosphere, original firing temperature and its provenance. The information mentioned above can be inferred from the method of the refiring pottery and the firing clay. The results of the original firing temperature deduced from both of them are in goodself agreement. It is found that the values of the Moessbauer parameters for the unrefired pottery figure are approximately the same as those for the clay fired at 950degC for five hours in a reduced atmosphere. The XRF analysis confirmed the locality of this pottery figure. (orig.)

  15. Fast figuring of large optics by reactive atom plasma

    Science.gov (United States)

    Castelli, Marco; Jourdain, Renaud; Morantz, Paul; Shore, Paul

    2012-09-01

    The next generation of ground-based astronomical observatories will require fabrication and maintenance of extremely large segmented mirrors tens of meters in diameter. At present, the large production of segments required by projects like E-ELT and TMT poses time frames and costs feasibility questions. This is principally due to a bottleneck stage in the optical fabrication chain: the final figuring step. State-of-the-art figure correction techniques, so far, have failed to meet the needs of the astronomical community for mass production of large, ultra-precise optical surfaces. In this context, Reactive Atom Plasma (RAP) is proposed as a candidate figuring process that combines nanometer level accuracy with high material removal rates. RAP is a form of plasma enhanced chemical etching at atmospheric pressure based on Inductively Coupled Plasma technology. The rapid figuring capability of the RAP process has already been proven on medium sized optical surfaces made of silicon based materials. In this paper, the figure correction of a 3 meters radius of curvature, 400 mm diameter spherical ULE mirror is presented. This work demonstrates the large scale figuring capability of the Reactive Atom Plasma process. The figuring is carried out by applying an in-house developed procedure that promotes rapid convergence. A 2.3 μm p-v initial figure error is removed within three iterations, for a total processing time of 2.5 hours. The same surface is then re-polished and the residual error corrected again down to λ/20 nm rms. These results highlight the possibility of figuring a metre-class mirror in about ten hours.

  16. Laparoscopic upper pole heminephroureterectomy in children: Seven-year experience

    Directory of Open Access Journals (Sweden)

    Antonio Marte

    2015-01-01

    Full Text Available Background: Minimally invasive surgery is the current approach to perform heminephroureterectomy (HN in children. This can be obtained through a transperitoneal (TP or a retroperitoneal approach. Here, we report our experience using a TP approach. Materials and Methods: From 2005 to 2014, 22 TP laparoscopic upper poles HN were performed at our institution. There were nine girls and 13 boys aged between 20 months and 6 years (mean age 3.9. Eight patients were diagnosed prenatally, 17 patients presented with urinary tract infection (UTI and three with vomiting and failure to thrive. The indication for HN was reflux nephropathy and UTI in non-functioning upper pole in 19 patients and cystic dysplasia in 1 patient. The surgical technique involved the following steps: Cystoscopic recognition; positioning of 3-4 trocar (right HN; identification of the kidney (detachment of the colon; isolation and low ligation of the dilated ureter; decrossing from renal vessels; section of the parenchyma by LigaSure; haemostasis with clips and LigaSure; drain. Results: The mean operative time was 154 min (range: 81-220 min. All patients were discharged from the 2 nd to 4 th day. Neither major complication nor conversion was recorded. 1 patient presented leakage of urine for 7 days from the drainage which resolved spontaneously. At ultrasound follow-up, 5 patients showed a secondary perirenal cyst, 2-5 cm diameter that resolved spontaneously. Conclusion: The results indicate that laparoscopic upper pole heminephrectomy is the treatment of choice in cases of non-functioning dilated lower segments of duplicated kidneys. The use of laparoscopic approach offers a good working space, a good visual control of the vessels and allows a very low isolation of the ureteral stump which counterbalance the peritoneal violation.

  17. Design, simulation and testing of a novel radial multi-pole multi-layer magnetorheological brake

    Science.gov (United States)

    Wu, Jie; Li, Hua; Jiang, Xuezheng; Yao, Jin

    2018-02-01

    This paper deals with design, simulation and experimental testing of a novel radial multi-pole multi-layer magnetorheological (MR) brake. This MR brake has an innovative structural design with superposition principle of two magnetic fields generated by the inner coils and the outer coils. The MR brake has several media layers of magnetorheological (MR) fluid located between the inner coils and the outer coils, and it can provide higher torque and higher torque density than conventional single-disk or multi-disk or multi-pole single-layer MR brakes can. In this paper, a brief introduction to the structure of the proposed MR brake was given first. Then, theoretical analysis of the magnetic circuit and the braking torque was conducted. In addition, a 3D electromagnetic model of the MR brake was developed to simulate and examine the magnetic flux intensity and corresponding braking torque. A prototype of the brake was fabricated and several tests were carried out to validate its torque capacity. The results show that the proposed MR brake can produce a maximum braking torque of 133 N m and achieve a high torque density of 25.0 kN m‑2, a high torque range of 42 and a high torque-to-power ratio of 0.95 N m W‑1.

  18. Strange resonance poles from Kπ scattering below 1.8 GeV

    Energy Technology Data Exchange (ETDEWEB)

    Pelaez, J.R.; Rodas, A. [Universidad Complutense de Madrid, Departamento de Fisica Teorica II, Madrid (Spain); Ruiz de Elvira, J. [Universitaet Bonn, Helmholtz-Institut fuer Strahlen- und Kernphysik (Theorie) and Bethe Center for Theoretical Physics, Bonn (Germany); University of Bern, Albert Einstein Center for Fundamental Physics, Institute for Theoretical Physics, Bern (Switzerland)

    2017-02-15

    In this work we present a determination of the mass, width, and coupling of the resonances that appear in kaon-pion scattering below 1.8 GeV. These are: the much debated scalar κ-meson, nowadays known as K{sub 0}{sup *}(800), the scalar K{sub 0}{sup *}(1430), the K*(892) and K{sub 1}{sup *}(1410) vectors, the spin-two K{sub 2}{sup *}(1430) as well as the spin-three K{sup *}{sub 3}(1780). The parameters will be determined from the pole associated to each resonance by means of an analytic continuation of the Kπ scattering amplitudes obtained in a recent and precise data analysis constrained with dispersion relations, which were not well satisfied in previous analyses. This analytic continuation will be performed by means of Pade approximants, thus avoiding a particular model for the pole parameterization. We also pay particular attention to the evaluation of uncertainties. (orig.)

  19. DETECTION AND CLASSIFICATION OF POLE-LIKE OBJECTS FROM MOBILE MAPPING DATA

    Directory of Open Access Journals (Sweden)

    K. Fukano

    2015-08-01

    Full Text Available Laser scanners on a vehicle-based mobile mapping system can capture 3D point-clouds of roads and roadside objects. Since roadside objects have to be maintained periodically, their 3D models are useful for planning maintenance tasks. In our previous work, we proposed a method for detecting cylindrical poles and planar plates in a point-cloud. However, it is often required to further classify pole-like objects into utility poles, streetlights, traffic signals and signs, which are managed by different organizations. In addition, our previous method may fail to extract low pole-like objects, which are often observed in urban residential areas. In this paper, we propose new methods for extracting and classifying pole-like objects. In our method, we robustly extract a wide variety of poles by converting point-clouds into wireframe models and calculating cross-sections between wireframe models and horizontal cutting planes. For classifying pole-like objects, we subdivide a pole-like object into five subsets by extracting poles and planes, and calculate feature values of each subset. Then we apply a supervised machine learning method using feature variables of subsets. In our experiments, our method could achieve excellent results for detection and classification of pole-like objects.

  20. Pole-zero form fractional model identification in frequency domain

    International Nuclear Information System (INIS)

    Mansouri, R.; Djamah, T.; Djennoune, S.; Bettayeb, M.

    2009-01-01

    This paper deals with system identification in the frequency domain using non integer order models given in the pole-zero form. The usual identification techniques cannot be used in this case because of the non integer orders of differentiation which makes the problem strongly nonlinear. A general identification method based on Levenberg-Marquardt algorithm is developed and allows to estimate the (2n+2m+1) parameters of the model. Its application to identify the ''skin effect'' of a squirrel cage induction machine modeling is then presented.

  1. Condition Assessment of Foundation Piles and Utility Poles Based on Guided Wave Propagation Using a Network of Tactile Transducers and Support Vector Machines.

    Science.gov (United States)

    Dackermann, Ulrike; Yu, Yang; Niederleithinger, Ernst; Li, Jianchun; Wiggenhauser, Herbert

    2017-12-18

    This paper presents a novel non-destructive testing and health monitoring system using a network of tactile transducers and accelerometers for the condition assessment and damage classification of foundation piles and utility poles. While in traditional pile integrity testing an impact hammer with broadband frequency excitation is typically used, the proposed testing system utilizes an innovative excitation system based on a network of tactile transducers to induce controlled narrow-band frequency stress waves. Thereby, the simultaneous excitation of multiple stress wave types and modes is avoided (or at least reduced), and targeted wave forms can be generated. The new testing system enables the testing and monitoring of foundation piles and utility poles where the top is inaccessible, making the new testing system suitable, for example, for the condition assessment of pile structures with obstructed heads and of poles with live wires. For system validation, the new system was experimentally tested on nine timber and concrete poles that were inflicted with several types of damage. The tactile transducers were excited with continuous sine wave signals of 1 kHz frequency. Support vector machines were employed together with advanced signal processing algorithms to distinguish recorded stress wave signals from pole structures with different types of damage. The results show that using fast Fourier transform signals, combined with principal component analysis as the input feature vector for support vector machine (SVM) classifiers with different kernel functions, can achieve damage classification with accuracies of 92.5% ± 7.5%.

  2. Condition Assessment of Foundation Piles and Utility Poles Based on Guided Wave Propagation Using a Network of Tactile Transducers and Support Vector Machines

    Directory of Open Access Journals (Sweden)

    Ulrike Dackermann

    2017-12-01

    Full Text Available This paper presents a novel non-destructive testing and health monitoring system using a network of tactile transducers and accelerometers for the condition assessment and damage classification of foundation piles and utility poles. While in traditional pile integrity testing an impact hammer with broadband frequency excitation is typically used, the proposed testing system utilizes an innovative excitation system based on a network of tactile transducers to induce controlled narrow-band frequency stress waves. Thereby, the simultaneous excitation of multiple stress wave types and modes is avoided (or at least reduced, and targeted wave forms can be generated. The new testing system enables the testing and monitoring of foundation piles and utility poles where the top is inaccessible, making the new testing system suitable, for example, for the condition assessment of pile structures with obstructed heads and of poles with live wires. For system validation, the new system was experimentally tested on nine timber and concrete poles that were inflicted with several types of damage. The tactile transducers were excited with continuous sine wave signals of 1 kHz frequency. Support vector machines were employed together with advanced signal processing algorithms to distinguish recorded stress wave signals from pole structures with different types of damage. The results show that using fast Fourier transform signals, combined with principal component analysis as the input feature vector for support vector machine (SVM classifiers with different kernel functions, can achieve damage classification with accuracies of 92.5% ± 7.5%.

  3. Velocity Induced by a Plane Uniform Vortex Having the Schwarz Function of Its Boundary with Two Simple Poles

    Directory of Open Access Journals (Sweden)

    G. Riccardi

    2008-01-01

    Full Text Available The velocity induced by a plane, uniform vortex is investigated through the use of an integral relation between Schwarz function of the vortex boundary and conjugate of the velocity. The analysis is restricted to a certain class of vortices, the boundaries of which are described through conformal maps onto the unit circle and the corresponding Schwarz functions possess two poles in the plane of the circle. The dependence of the velocity field on the vortex shape is investigated by comparing velocity and streamfunction with the ones of the equivalent Rankine vortex (which has the same vorticity, area, and center of vorticity. By changing the parameters of the Schwarz function (poles and corresponding residues, rather complicated vortex shapes can be easily analyzed, some of them mimicing an incipient filamentation of the vortex boundary.

  4. Dynamics of Sr-90 content in environmental objects of Ukrainian-Byelorussian Poles'e after the Chernobyl' NPP accident

    International Nuclear Information System (INIS)

    Likhtarev, I.A.; Kajro, I.A.; Shandala, N.K.; Los', I.N.; Repin, V.S.; Gul'ko, G.M.; Chepurnoj, N.I.; Berkovskij, V.B.; Tsygankov, N.Ya.; Pozhivalova, S.B.

    1990-01-01

    Ecological, dosemetric and radiation-sanitary aspects of the problem of Sr-90 contamination of environmental objects and food in Ukrainian-Byelorussian Poles'e in three-year period after the Chernobyl' NPP accident are discussed. Analysis of the materials collected shows that efficient equivalent radiation doses from Sr-90 being intaken into the region of Urkainian-Byelorussian Poles'e after the Chernobyl' NPP accident expected to be gained during 70 years of critical population group life are not exceed 1 mSv; this value is by the factor of 10-100 smaller than the dose values connected with radioactive cesium. The problem of environment contamination with Sr-90 transforms from hot radiation-sanitary situation into more quiet radioecological one

  5. High-resolution Local Gravity Model of the South Pole of the Moon from GRAIL Extended Mission Data

    Science.gov (United States)

    Goossens, Sander Johannes; Sabaka, Terence J.; Nicholas, Joseph B.; Lemoine, Frank G.; Rowlands, David D.; Mazarico, Erwan; Neumann, Gregory A.; Smith, David E.; Zuber, Maria T.

    2014-01-01

    We estimated a high-resolution local gravity field model over the south pole of the Moon using data from the Gravity Recovery and Interior Laboratory's extended mission. Our solution consists of adjustments with respect to a global model expressed in spherical harmonics. The adjustments are expressed as gridded gravity anomalies with a resolution of 1/6deg by 1/6deg (equivalent to that of a degree and order 1080 model in spherical harmonics), covering a cap over the south pole with a radius of 40deg. The gravity anomalies have been estimated from a short-arc analysis using only Ka-band range-rate (KBRR) data over the area of interest. We apply a neighbor-smoothing constraint to our solution. Our local model removes striping present in the global model; it reduces the misfit to the KBRR data and improves correlations with topography to higher degrees than current global models.

  6. Self-Esteem and Children's Human Figure Drawings

    Science.gov (United States)

    Dalby, J. Thomas; Vale, Helen L.

    1977-01-01

    One hundred and fifteen students in Grade 5 made human figure drawings which were compared with their scores on the Coopersmith Self-esteem Inventory and on teachers' ratings of the students' self-esteem. (Author)

  7. R&D figures 'distorted' by defence spending

    CERN Multimedia

    Coghlan, A

    1990-01-01

    A report published by the House of Lords Select Committee on Science and Technology, claims that government figures for R&D spending are misleading. They apparently include military projects that are more concerned with product development than original research.

  8. Spinal Cord Injury: Facts and Figures at a Glance

    Science.gov (United States)

    Spinal Cord Injury Facts and Figures at a Glance https://www.nscisc.uab.edu February 2012 This is a publication of the National Spinal Cord Injury Statistical Center, Birmingham, Alabama. I ncidence : It is ...

  9. Figures6&7_Tables2&3

    Data.gov (United States)

    U.S. Environmental Protection Agency — This file contains three netCDF formatted files containing simulation model results used to produce Figures 6 and 7 and tables 3 and 4. These data can be accessed...

  10. [Effective English writing for tables and figures in andrological papers].

    Science.gov (United States)

    Luo, Yong-He; Lu, Jin-Chun

    2012-08-01

    Tables and figures play a critical role in enhancing the quality of an andrological paper. As visual elements, well-presented tables and figures can reduce the length of the manuscript and meanwhile efficiently capture a large amount of information by clear and concise display of detailed results and complex relationships, patterns and trends, offer explicit statistical or graphical support to important ideas, and add to the value of the whole paper. The effectiveness of a table or figure lies not only in its well-crafted structural design, but even more in its language presentation. This article presents some essential and practical guidelines to effective English writing of the title, body and footnotes of tables and figures in andrological papers.

  11. Rumsey and Walker_AMT_2016_Figure 1.xlsx

    Data.gov (United States)

    U.S. Environmental Protection Agency — Figure summarizes diurnal profiles of uncertainty in the chemical gradient and transfer velocity measurements from which fluxes are calculated. This dataset is...

  12. Study of ordered macroporous polymer films by templating breath figures

    Science.gov (United States)

    Song, Lulu

    2005-11-01

    Macroporous films with highly ordered pore patterns have many potential applications. Some examples include microstructured electrode surfaces, photonic band gap materials and filters for cell sorting and bio-interfaces. In this dissertation we discuss a "moist-casting" method to prepare hexagonally-ordered macroporous films with pore sizes in the range of sub-micron to several microns, where condensed water droplets ("breath figures") work as templates. Compared with other templating methods, this one is fast and simple. Well-ordered porous films can be obtained in tens of seconds and the pore size can be easily tailored and dynamically controlled by adjusting the casting conditions. More importantly, there is no need to remove the templates; water droplets just evaporate when the casting processes are finished. This study was carried out with the intention of characterizing the structures, understanding film-formation processes and exploring special properties and possible applications. For the structural characterization, film morphology was studied in detail by normal optical microscopy and laser scanning confocal microscopy (LSCM). Several interesting features have been revealed. Meanwhile, the degree of the order of the porous structures were characterized both in real space via Voronoi diagram and bond-orientational correlation function, and in reciprocal space via Fraunhofer diffraction pattern. To further understand the mechanism, the evaporation of the polymer solutions during the film formation was studied by monitoring their mass over time. Besides, the evolution of breath figures formed on the evaporating polymer solutions was in-situ recorded via a high-speed camera coupled to an optical microscope. Combined with the information on the film structures obtained via LSCM, explanations for some detailed features have been attempted. Wetting property of these films was studied in some detail. The films exhibited "lotus effect", mimicking natural non

  13. Material-based figure of merit for caloric materials

    Science.gov (United States)

    Griffith, L. D.; Mudryk, Y.; Slaughter, J.; Pecharsky, V. K.

    2018-01-01

    The efficient use of reversible thermal effects in magnetocaloric, electrocaloric, and elastocaloric materials is a promising avenue that can lead to a substantially increased efficiency of refrigeration and heat pumping devices, most importantly, those used in household and commercial cooling applications near ambient temperature. A proliferation in caloric material research has resulted in a wide array of materials where only the isothermal change in entropy in response to a handful of different field strengths over a limited range of temperatures has been evaluated and reported. Given the abundance of such data, there is a clear need for a simple and reliable figure of merit enabling fast screening and down-selection to justify further detailed characterization of those material systems that hold the greatest promise. Based on the analysis of several well-known materials that exhibit vastly different magnetocaloric effects, the Temperature averaged Entropy Change is introduced as a suitable early indicator of the material's utility for magnetocaloric cooling applications, and its adoption by the caloric community is recommended.

  14. Brand logo design: Examining consumer responses to figurativeness

    OpenAIRE

    Machado, J. C.; Vacas-Carvalho, Leonor; Costa, P.; Torres, A.

    2013-01-01

    In a previous investigation, aimed at studying brand identity preferences in a merger context, researchers found the most preferred logos are figurative ones. Additionally, results suggested the aesthetic appeal of the logo significantly influences consumers’ identity choices. These results find support in logo strategy literature. The main purpose of this study is to investigate more thoroughly the influence of logo design characteristics, and particularly of figurativeness, o...

  15. Fast figuring of large optics by reactive atom plasma

    OpenAIRE

    Castelli, Marco; Jourdain, Renaud; Morantz, Paul; Shore, Paul

    2012-01-01

    The next generation of ground-based astronomical observatories will require fabrication and maintenance of extremely large segmented mirrors tens of meters in diameter. At present, the large production of segments required by projects like E-ELT and TMT poses time frames and costs feasibility questions. This is principally due to a bottleneck stage in the optical fabrication chain: the final figuring step. State-of-the-art figure correction techniques, so far, have failed to meet the needs of...

  16. An Overview of Human Figure Modeling for Army Aviation Systems

    Science.gov (United States)

    2010-04-01

    space reach and vision analyses, while others are used to examine biomechanics or strength issues, for example. Still other human figure modeling... levers (ECLs) located on the side console panel. Figure 9 shows a large male with insufficient knee clearance at the lower section of the instrument...Measuring Machine CMWS Common Missile Warning System ECL Engine Control Lever FOV Field of View GMC Ground Movement Control HFE Human

  17. Figurativeness in the Sense of Distraction (Studies by Lithuanian Authors

    Directory of Open Access Journals (Sweden)

    Laimutė Monginaitė

    2017-04-01

    Full Text Available The phenomenon of the sense of distraction and the feature of figurativeness in it are analysed with the help of phenomenological description, the concept of sense of Juozas Mureika and the conception of imagination of Kristupas Sabolius. The position is followed that the acts of sense and the being of those existing found in them cannot be known in a purely rational way. Knowing is reached with intuitive insights. The experiencing of distraction is approached as one of the norms or intentions of consciousness. The sense of distraction is acknowledged to be a basic value becoming more and more important in a modern stressful life. The article indicates that the intentional beings of the sense of distraction are expressed in really various human activities and are distinguished with mono-subjectivity and unrepeatable feeling. Figurativeness is perceived as the result of imaginary, creative activity of the imagination and aesthetical quality. The peculiarities of the formation of figurativeness are revealed through the phenomenological description of imagination by Sabolius. Four features of the act of visualisation, determining the quality of figurativeness, are emphasized: intentionality, power of transformation, relation with emotions and the symbolism of the image. The conclusion is made that figurativeness, being the result of the creative act (visualisation of imagination, appears as aesthetical quality or the ensemble of qualities. Figurativeness sharpens the sense of distraction and calls the wave of new experiences.

  18. Algorithm for ion beam figuring of low-gradient mirrors.

    Science.gov (United States)

    Jiao, Changjun; Li, Shengyi; Xie, Xuhui

    2009-07-20

    Ion beam figuring technology for low-gradient mirrors is discussed. Ion beam figuring is a noncontact machining technique in which a beam of high-energy ions is directed toward a target workpiece to remove material in a predetermined and controlled fashion. Owing to this noncontact mode of material removal, problems associated with tool wear and edge effects, which are common in conventional contact polishing processes, are avoided. Based on the Bayesian principle, an iterative dwell time algorithm for planar mirrors is deduced from the computer-controlled optical surfacing (CCOS) principle. With the properties of the removal function, the shaping process of low-gradient mirrors can be approximated by the linear model for planar mirrors. With these discussions, the error surface figuring technology for low-gradient mirrors with a linear path is set up. With the near-Gaussian property of the removal function, the figuring process with a spiral path can be described by the conventional linear CCOS principle, and a Bayesian-based iterative algorithm can be used to deconvolute the dwell time. Moreover, the selection criterion of the spiral parameter is given. Ion beam figuring technology with a spiral scan path based on these methods can be used to figure mirrors with non-axis-symmetrical errors. Experiments on SiC chemical vapor deposition planar and Zerodur paraboloid samples are made, and the final surface errors are all below 1/100 lambda.

  19. Chiasmata promote monopolar attachment of sister chromatids and their co-segregation toward the proper pole during meiosis I.

    Directory of Open Access Journals (Sweden)

    Yukinobu Hirose

    2011-03-01

    Full Text Available The chiasma is a structure that forms between a pair of homologous chromosomes by crossover recombination and physically links the homologous chromosomes during meiosis. Chiasmata are essential for the attachment of the homologous chromosomes to opposite spindle poles (bipolar attachment and their subsequent segregation to the opposite poles during meiosis I. However, the overall function of chiasmata during meiosis is not fully understood. Here, we show that chiasmata also play a crucial role in the attachment of sister chromatids to the same spindle pole and in their co-segregation during meiosis I in fission yeast. Analysis of cells lacking chiasmata and the cohesin protector Sgo1 showed that loss of chiasmata causes frequent bipolar attachment of sister chromatids during anaphase. Furthermore, high time-resolution analysis of centromere dynamics in various types of chiasmate and achiasmate cells, including those lacking the DNA replication checkpoint factor Mrc1 or the meiotic centromere protein Moa1, showed the following three outcomes: (i during the pre-anaphase stage, the bipolar attachment of sister chromatids occurs irrespective of chiasma formation; (ii the chiasma contributes to the elimination of the pre-anaphase bipolar attachment; and (iii when the bipolar attachment remains during anaphase, the chiasmata generate a bias toward the proper pole during poleward chromosome pulling that results in appropriate chromosome segregation. Based on these results, we propose that chiasmata play a pivotal role in the selection of proper attachments and provide a backup mechanism that promotes correct chromosome segregation when improper attachments remain during anaphase I.

  20. DISCOVERY OF FOG AT THE SOUTH POLE OF TITAN

    International Nuclear Information System (INIS)

    Brown, M. E.; Smith, A. L.; Chen, C.; Adamkovics, M.

    2009-01-01

    While Saturn's moon Titan appears to support an active methane hydrological cycle, no direct evidence for surface-atmosphere exchange has yet appeared. The indirect evidence, while compelling, could be misleading. It is possible, for example, that the identified lake features could be filled with ethane, an involatile long-term residue of atmospheric photolysis; the apparent stream and channel features could be ancient remnants of a previous climate; and the tropospheric methane clouds, while frequent, could cause no rain to reach the surface. We report here the detection of fog at the south pole of Titan during late summer using observations from the VIMS instrument on board the Cassini spacecraft. While terrestrial fog can form from a variety of causes, most of these processes are inoperable on Titan. Fog on Titan can only be caused by evaporation of nearly pure liquid methane; the detection of fog provides the first direct link between surface and atmospheric methane. Based on the detections presented here, liquid methane appears widespread at the south pole of Titan in late southern summer, and the hydrological cycle on Titan is currently active.

  1. Acoustic wave filter based on periodically poled lithium niobate.

    Science.gov (United States)

    Courjon, Emilie; Bassignot, Florent; Ulliac, Gwenn; Benchabane, Sarah; Ballandras, Sylvain

    2012-09-01

    Solutions for the development of compact RF passive transducers as an alternative to standard surface or bulk acoustic wave devices are receiving increasing interest. This article presents results on the development of an acoustic band-pass filter based on periodically poled ferroelectric domains in lithium niobate. The fabrication of periodically poled transducers (PPTs) operating in the range of 20 to 650 MHz has been achieved on 3-in (76.2-mm) 500-μm-thick wafers. This kind of transducer is able to excite elliptical as well as longitudinal modes, yielding phase velocities of about 3800 and 6500 ms(-1), respectively. A new type of acoustic band-pass filter is proposed, based on the use of PPTs instead of the SAWs excited by classical interdigital transducers. The design and the fabrication of such a filter are presented, as well as experimental measurements of its electrical response and transfer function. The feasibility of such a PPT-based filter is thereby demonstrated and the limitations of this method are discussed.

  2. Groebner Basis Solutions to Satellite Trajectory Control by Pole Placement

    Science.gov (United States)

    Kukelova, Z.; Krsek, P.; Smutny, V.; Pajdla, T.

    2013-09-01

    Satellites play an important role, e.g., in telecommunication, navigation and weather monitoring. Controlling their trajectories is an important problem. In [1], an approach to the pole placement for the synthesis of a linear controller has been presented. It leads to solving five polynomial equations in nine unknown elements of the state space matrices of a compensator. This is an underconstrained system and therefore four of the unknown elements need to be considered as free parameters and set to some prior values to obtain a system of five equations in five unknowns. In [1], this system was solved for one chosen set of free parameters with the help of Dixon resultants. In this work, we study and present Groebner basis solutions to this problem of computation of a dynamic compensator for the satellite for different combinations of input free parameters. We show that the Groebner basis method for solving systems of polynomial equations leads to very simple solutions for all combinations of free parameters. These solutions require to perform only the Gauss-Jordan elimination of a small matrix and computation of roots of a single variable polynomial. The maximum degree of this polynomial is not greater than six in general but for most combinations of the input free parameters its degree is even lower. [1] B. Palancz. Application of Dixon resultant to satellite trajectory control by pole placement. Journal of Symbolic Computation, Volume 50, March 2013, Pages 79-99, Elsevier.

  3. Elemental Mercury Diffusion Processes and Concentration at the Lunar Poles

    Science.gov (United States)

    Moxley, Frederick; Killen, Rosemary M.; Hurley, Dana M.

    2011-01-01

    In 2009, the Lyman Alpha Mapping Project (LAMP) spectrograph onboard the Lunar Reconnaissance Orbiter (LRO) spacecraft made the first detection of element mercury (Hg) vapor in the lunar exosphere after the Lunar Crater Observing and Sensing Satellite (LCROSS) Centaur rocket impacted into the Cabeus crater in the southern polar region of the Moon. The lunar regolith core samples from the Apollo missions determined that Hg had a devolatilized pattern with a concentration gradient increasing with depth, in addition to a layered pattern suggesting multiple episodes of burial and volatile loss. Hg migration on the lunar surface resulted in cold trapping at the poles. We have modeled the rate at which indigenous Hg is lost from the regolith through diffusion out of lunar grains. We secondly modeled the migration of Hg vapor in the exosphere and estimated the rate of cold-trapping at the poles using a Monte Carlo technique. The Hg vapor may be lost from the exosphere via ionization, Jeans escape, or re-impact into the surface causing reabsorption.

  4. The effect of poling conditions on the performance of piezoelectric energy harvesters fabricated by wet chemistry

    KAUST Repository

    Fuentes-Fernandez, Erika Maria-Anai

    2015-03-25

    The effect of poling conditions on the power output of piezoelectric energy harvesters using sol-gel based Pb(Zr0.53,Ti0.47)O3-Pb(Zn1/3,Nb2/3)O3 piezoelectric thin-films has been investigated. A strong correlation was established between the poling efficiency and harvester output. A method based on simple capacitance-voltage measurements is shown to be an effective approach to estimate the power output of harvesters poled under different conditions. The poling process was found to be thermally activated with an activation energy of 0.12 eV, and the optimum poling conditions were identified (200 kV cm-1, 250 °C for 50 min). The voltage output and power density obtained under optimum poling conditions were measured to be 558 V cm-2 and 325 μW cm-2, respectively. © The Royal Society of Chemistry.2015.

  5. Iron Pole Shape Optimization of IPM Motors Using an Integrated Method

    Directory of Open Access Journals (Sweden)

    JABBARI, A.

    2010-02-01

    Full Text Available An iron pole shape optimization method to reduce cogging torque in Interior Permanent Magnet (IPM motors is developed by using the reduced basis technique coupled by finite element and design of experiments methods. Objective function is defined as the minimum cogging torque. The experimental design of Taguchi method is used to build the approximation model and to perform optimization. This method is demonstrated on the rotor pole shape optimization of a 4-poles/24-slots IPM motor.

  6. Lower Pole Calyceal Stone and Lithotripsy are Issues with Clearance Fact or Reality?

    Directory of Open Access Journals (Sweden)

    M. Hammad Ather

    2013-12-01

    Full Text Available The lower pole calyceal (LPC stone continues to be an enigma. The complex anatomy of the lower pole collecting system, along with other factors like acute pelvi calyceal angle and narrow and long infundibulum, are some of the complicating factors affecting stone clearance. There have been many studies assessing the impact of collecting system anatomy and most conclude that the complex anatomy of the lower pole collecting system does impact the overall stone-free rate.

  7. Thirteen years of the fight against doping in figures.

    Science.gov (United States)

    Aguilar, Millán; Muñoz-Guerra, Jesús; Plata, María Del Mar; Del Coso, Juan

    2017-06-01

    Every year, the World Anti-Doping Agency (WADA) publishes the main statistics reported by the accredited laboratories, which provide very valuable information for assessing changes in the patterns of doping in sports over time. Using the information provided since 2003 as the basis for the analysis, the evolution of doping/anti-doping figures over the last decade can be examined in reasonable detail, at least in reference to samples analyzed and categories of substances more commonly found in athletes' samples. This brief analysis of the WADA statistical reports leads us to the following outcomes: the increase in anti-doping pressure from 2003 to 2015, as evidenced by increased numbers of samples analyzed and banned substances, has not directly produced a higher frequency of adverse/atypical findings. Although this could be interpreted as steady state in the capacity to detect doping through this whole period, it also resulted in a significant increase in the absolute number of samples catalogued as doping (from 2247 in 2003 to 5912 in 2015). Anabolic agents have been the most common doping substances detected in all statistics reports while the remaining groups of substances are much less frequently found in doping control samples. Given that one might have expected the enhancement of the anti-doping programme led by WADA over this last decade to have increased the percentage of adverse/atypical findings, the fact that it did not might indicate the need to take another step in sampling strategies, such as 'more intelligent testing' based on the differences in the prevalence of doping substances among sports. Copyright © 2017 John Wiley & Sons, Ltd. Copyright © 2017 John Wiley & Sons, Ltd.

  8. Noncircular features in Saturn's rings IV: Absolute radius scale and Saturn's pole direction

    Science.gov (United States)

    French, Richard G.; McGhee-French, Colleen A.; Lonergan, Katherine; Sepersky, Talia; Jacobson, Robert A.; Nicholson, Philip D.; Hedman, Mathew M.; Marouf, Essam A.; Colwell, Joshua E.

    2017-07-01

    direction of Saturn's pole in the reconstructed Cassini spacecraft ephemerides. Overall, the agreement of our results with the widely-used French et al. (1993, Icarus 103, 163-214) radius scale is excellent, with very small (≲ 0.1 km) systematic differences, although differences in a few individual feature radii are as large as 6 km. Our new solution incorporates many more features across the ring system, and the fitted orbital elements correct for the several-km biases in the radii of many ring features in the French et al. (1993) catalog that were unresolved because of the large projected diameter of the occulted star in the 28 Sgr event. The formal errors in the fitted radii are generally quite small - on the order of tens of meters. Systematic errors stemming from uncertainty in the precession rate of Saturn's pole and its effect on the accuracy of the reconstructed Cassini trajectories are somewhat larger, but the absolute radius scale is relatively insensitive to 5-σ changes in the pole direction or precession rate, and we estimate the combined magnitude of these systematic errors and pole uncertainties to be of order 250 m. This estimate is likely to be improved once a new set of reconstructed Cassini trajectories has been developed, based on a self-consistent model for Saturn's pole. We demonstrate the utility of the new radius scale and the associated trajectory corrections in the analysis of short-wavelength density waves in the C ring. In online supplementary material, we provide in machine-readable form the more than 15,000 individual ring measurements used in this study, as well as details of the ring orbit fits underlying this work.

  9. Shadow poles in coupled-channel problems calculated with the Berggren basis

    Science.gov (United States)

    Id Betan, R. M.; Kruppa, A. T.; Vertse, T.

    2018-02-01

    Background: In coupled-channels models the poles of the scattering S matrix are located on different Riemann sheets. Physical observables are affected mainly by poles closest to the physical region but sometimes shadow poles have considerable effect too. Purpose: The purpose of this paper is to show that in coupled-channels problems all poles of the S matrix can be located by an expansion in terms of a properly constructed complex-energy basis. Method: The Berggren basis is used for expanding the coupled-channels solutions. Results: The locations of the poles of the S matrix for the Cox potential, constructed for coupled-channels problems, were numerically calculated and compared with the exact ones. In a nuclear physics application the Jπ=3 /2+ resonant poles of 5He were calculated in a phenomenological two-channel model. The properties of both the normal and shadow resonances agree with previous findings. Conclusions: We have shown that, with an appropriately chosen Berggren basis, all poles of the S matrix including the shadow poles can be determined. We have found that the shadow pole of 5He migrates between Riemann sheets if the coupling strength is varied.

  10. Time domain oscillating poles: Stability redefined in Memristor based Wien-oscillators

    KAUST Repository

    Talukdar, Abdul Hafiz Ibne

    2012-07-28

    Traditionally, the necessary and sufficient condition for any system to be oscillating is that its poles are located on the imaginary (jω) axis. In this paper, for the first time, we have shown that systems can oscillate with time-domain oscillating poles. The idea is verified using a Memristor based Wien oscillator. Sustained oscillations are observed without having the poles of the system fixed on the imaginary axis and the oscillating behavior of the system poles is reported. The oscillating resistance and triangular shape of FFT are also demonstrated with mathematical reasoning and simulation results to support the unusual and surprising characteristics. © 2009 IEEE.

  11. Full text and figure display improves bioscience literature search.

    Directory of Open Access Journals (Sweden)

    Anna Divoli

    Full Text Available When reading bioscience journal articles, many researchers focus attention on the figures and their captions. This observation led to the development of the BioText literature search engine, a freely available Web-based application that allows biologists to search over the contents of Open Access Journals, and see figures from the articles displayed directly in the search results. This article presents a qualitative assessment of this system in the form of a usability study with 20 biologist participants using and commenting on the system. 19 out of 20 participants expressed a desire to use a bioscience literature search engine that displays articles' figures alongside the full text search results. 15 out of 20 participants said they would use a caption search and figure display interface either frequently or sometimes, while 4 said rarely and 1 said undecided. 10 out of 20 participants said they would use a tool for searching the text of tables and their captions either frequently or sometimes, while 7 said they would use it rarely if at all, 2 said they would never use it, and 1 was undecided. This study found evidence, supporting results of an earlier study, that bioscience literature search systems such as PubMed should show figures from articles alongside search results. It also found evidence that full text and captions should be searched along with the article title, metadata, and abstract. Finally, for a subset of users and information needs, allowing for explicit search within captions for figures and tables is a useful function, but it is not entirely clear how to cleanly integrate this within a more general literature search interface. Such a facility supports Open Access publishing efforts, as it requires access to full text of documents and the lifting of restrictions in order to show figures in the search interface.

  12. Fission yeast Sec3 and Exo70 are transported on actin cables and localize the exocyst complex to cell poles.

    Directory of Open Access Journals (Sweden)

    Felipe O Bendezú

    Full Text Available The exocyst complex is essential for many exocytic events, by tethering vesicles at the plasma membrane for fusion. In fission yeast, polarized exocytosis for growth relies on the combined action of the exocyst at cell poles and myosin-driven transport along actin cables. We report here the identification of fission yeast Schizosaccharomyces pombe Sec3 protein, which we identified through sequence homology of its PH-like domain. Like other exocyst subunits, sec3 is required for secretion and cell division. Cells deleted for sec3 are only conditionally lethal and can proliferate when osmotically stabilized. Sec3 is redundant with Exo70 for viability and for the localization of other exocyst subunits, suggesting these components act as exocyst tethers at the plasma membrane. Consistently, Sec3 localizes to zones of growth independently of other exocyst subunits but depends on PIP(2 and functional Cdc42. FRAP analysis shows that Sec3, like all other exocyst subunits, localizes to cell poles largely independently of the actin cytoskeleton. However, we show that Sec3, Exo70 and Sec5 are transported by the myosin V Myo52 along actin cables. These data suggest that the exocyst holocomplex, including Sec3 and Exo70, is present on exocytic vesicles, which can reach cell poles by either myosin-driven transport or random walk.

  13. Real-time digital signal recovery for a multi-pole low-pass transfer function system

    Science.gov (United States)

    Lee, Jhinhwan

    2017-08-01

    In order to solve the problems of waveform distortion and signal delay by many physical and electrical systems with multi-pole linear low-pass transfer characteristics, a simple digital-signal-processing (DSP)-based method of real-time recovery of the original source waveform from the distorted output waveform is proposed. A mathematical analysis on the convolution kernel representation of the single-pole low-pass transfer function shows that the original source waveform can be accurately recovered in real time using a particular moving average algorithm applied on the input stream of the distorted waveform, which can also significantly reduce the overall delay time constant. This method is generalized for multi-pole low-pass systems and has noise characteristics of the inverse of the low-pass filter characteristics. This method can be applied to most sensors and amplifiers operating close to their frequency response limits to improve the overall performance of data acquisition systems and digital feedback control systems.

  14. Emotional intelligence moderates the relationship between regional gray matter volume in the bilateral temporal pole and critical thinking disposition.

    Science.gov (United States)

    Yao, Xiaonan; Yuan, Shuge; Yang, Wenjing; Chen, Qunlin; Wei, Dongtao; Hou, Yuling; Zhang, Lijie; Qiu, Jiang; Yang, Dong

    2018-04-01

    Critical thinking enables people to form sound beliefs and provides a basis for emotional life. Research has indicated that individuals with better critical thinking disposition can better recognize and regulate their emotions, though the neuroanatomical mechanisms involved in this process remain to be elucidated. Further, the influence of emotional intelligence on the relationship between brain structure and critical thinking disposition has not been examined. The present study utilized voxel-based morphometry (VBM) to investigate the neural structures underlying critical thinking disposition in a large sample of college students (N = 296). Regional gray matter volume (rGMV) in the bilateral temporal pole, which reflects an individual's ability to process social and emotional information, was negatively correlated with critical thinking disposition. In addition, rGMV in bilateral para hippocampal regions -regions involved in contextual association/emotional regulation-exhibited negative correlation with critical thinking disposition. Further analysis revealed that emotional intelligence moderated the relationship between rGMV of the temporal pole and critical thinking disposition. Specifically, critical thinking disposition was associated with decreased GMV of the temporal pole for individuals who have relatively higher emotional intelligence rather than lower emotional intelligence. The results of the present study indicate that people who have higher emotional intelligence exhibit more effective and automatic processing of emotional information and tend to be strong critical thinkers.

  15. Automatic Detection and Classification of Pole-Like Objects for Urban Cartography Using Mobile Laser Scanning Data.

    Science.gov (United States)

    Ordóñez, Celestino; Cabo, Carlos; Sanz-Ablanedo, Enoc

    2017-06-22

    Mobile laser scanning (MLS) is a modern and powerful technology capable of obtaining massive point clouds of objects in a short period of time. Although this technology is nowadays being widely applied in urban cartography and 3D city modelling, it has some drawbacks that need to be avoided in order to strengthen it. One of the most important shortcomings of MLS data is concerned with the fact that it provides an unstructured dataset whose processing is very time-consuming. Consequently, there is a growing interest in developing algorithms for the automatic extraction of useful information from MLS point clouds. This work is focused on establishing a methodology and developing an algorithm to detect pole-like objects and classify them into several categories using MLS datasets. The developed procedure starts with the discretization of the point cloud by means of a voxelization, in order to simplify and reduce the processing time in the segmentation process. In turn, a heuristic segmentation algorithm was developed to detect pole-like objects in the MLS point cloud. Finally, two supervised classification algorithms, linear discriminant analysis and support vector machines, were used to distinguish between the different types of poles in the point cloud. The predictors are the principal component eigenvalues obtained from the Cartesian coordinates of the laser points, the range of the Z coordinate, and some shape-related indexes. The performance of the method was tested in an urban area with 123 poles of different categories. Very encouraging results were obtained, since the accuracy rate was over 90%.

  16. Automatic Detection and Classification of Pole-Like Objects for Urban Cartography Using Mobile Laser Scanning Data

    Directory of Open Access Journals (Sweden)

    Celestino Ordóñez

    2017-06-01

    Full Text Available Mobile laser scanning (MLS is a modern and powerful technology capable of obtaining massive point clouds of objects in a short period of time. Although this technology is nowadays being widely applied in urban cartography and 3D city modelling, it has some drawbacks that need to be avoided in order to strengthen it. One of the most important shortcomings of MLS data is concerned with the fact that it provides an unstructured dataset whose processing is very time-consuming. Consequently, there is a growing interest in developing algorithms for the automatic extraction of useful information from MLS point clouds. This work is focused on establishing a methodology and developing an algorithm to detect pole-like objects and classify them into several categories using MLS datasets. The developed procedure starts with the discretization of the point cloud by means of a voxelization, in order to simplify and reduce the processing time in the segmentation process. In turn, a heuristic segmentation algorithm was developed to detect pole-like objects in the MLS point cloud. Finally, two supervised classification algorithms, linear discriminant analysis and support vector machines, were used to distinguish between the different types of poles in the point cloud. The predictors are the principal component eigenvalues obtained from the Cartesian coordinates of the laser points, the range of the Z coordinate, and some shape-related indexes. The performance of the method was tested in an urban area with 123 poles of different categories. Very encouraging results were obtained, since the accuracy rate was over 90%.

  17. Learning to rank figures within a biomedical article.

    Directory of Open Access Journals (Sweden)

    Feifan Liu

    Full Text Available Hundreds of millions of figures are available in biomedical literature, representing important biomedical experimental evidence. This ever-increasing sheer volume has made it difficult for scientists to effectively and accurately access figures of their interest, the process of which is crucial for validating research facts and for formulating or testing novel research hypotheses. Current figure search applications can't fully meet this challenge as the "bag of figures" assumption doesn't take into account the relationship among figures. In our previous study, hundreds of biomedical researchers have annotated articles in which they serve as corresponding authors. They ranked each figure in their paper based on a figure's importance at their discretion, referred to as "figure ranking". Using this collection of annotated data, we investigated computational approaches to automatically rank figures. We exploited and extended the state-of-the-art listwise learning-to-rank algorithms and developed a new supervised-learning model BioFigRank. The cross-validation results show that BioFigRank yielded the best performance compared with other state-of-the-art computational models, and the greedy feature selection can further boost the ranking performance significantly. Furthermore, we carry out the evaluation by comparing BioFigRank with three-level competitive domain-specific human experts: (1 First Author, (2 Non-Author-In-Domain-Expert who is not the author nor co-author of an article but who works in the same field of the corresponding author of the article, and (3 Non-Author-Out-Domain-Expert who is not the author nor co-author of an article and who may or may not work in the same field of the corresponding author of an article. Our results show that BioFigRank outperforms Non-Author-Out-Domain-Expert and performs as well as Non-Author-In-Domain-Expert. Although BioFigRank underperforms First Author, since most biomedical researchers are either in- or

  18. Learning to rank figures within a biomedical article.

    Science.gov (United States)

    Liu, Feifan; Yu, Hong

    2014-01-01

    Hundreds of millions of figures are available in biomedical literature, representing important biomedical experimental evidence. This ever-increasing sheer volume has made it difficult for scientists to effectively and accurately access figures of their interest, the process of which is crucial for validating research facts and for formulating or testing novel research hypotheses. Current figure search applications can't fully meet this challenge as the "bag of figures" assumption doesn't take into account the relationship among figures. In our previous study, hundreds of biomedical researchers have annotated articles in which they serve as corresponding authors. They ranked each figure in their paper based on a figure's importance at their discretion, referred to as "figure ranking". Using this collection of annotated data, we investigated computational approaches to automatically rank figures. We exploited and extended the state-of-the-art listwise learning-to-rank algorithms and developed a new supervised-learning model BioFigRank. The cross-validation results show that BioFigRank yielded the best performance compared with other state-of-the-art computational models, and the greedy feature selection can further boost the ranking performance significantly. Furthermore, we carry out the evaluation by comparing BioFigRank with three-level competitive domain-specific human experts: (1) First Author, (2) Non-Author-In-Domain-Expert who is not the author nor co-author of an article but who works in the same field of the corresponding author of the article, and (3) Non-Author-Out-Domain-Expert who is not the author nor co-author of an article and who may or may not work in the same field of the corresponding author of an article. Our results show that BioFigRank outperforms Non-Author-Out-Domain-Expert and performs as well as Non-Author-In-Domain-Expert. Although BioFigRank underperforms First Author, since most biomedical researchers are either in- or out

  19. First Results from the South Pole Bang Time (SPBT) Diagnostic on the NIF*

    Science.gov (United States)

    Edgell, D. H.; Glebov, V. Yu.; Magoon, J.; Sangster, T. C.; Shoup, M. J., III; Stoeckl, C.; Macphee, A.; Bradley, D. K.; Burns, S.; Celeste, J.; Eckart, M. J.; Jones, O. S.; Kilkenny, J. D.; Kimbrough, J. R.; MacKinnon, A. J.; Parker, J.; Thomas, T.

    2011-10-01

    The south pole bang time (SPBT) x-ray diagnostic has been successfully fielded on the NIF. SPBT consists of chemical-vapor-deposition diamond detectors, with different filtrations, located 3 m directly below target chamber center, viewing the implosion through the hohlraum laser entrance hole. The diamond detectors are sensitive to both x rays and neutrons. HOPG crystal mirror monochromators increase the x-ray signal to background ratio. SPBT is designed to measure the x-ray bang time with an accuracy of a few tens of picoseconds. SPBT x-ray and neutron results from NIF implosions are presented along with timing and error analysis. *This work was supported by the U.S. Department of Energy Office of Inertial Confinement Fusion under Cooperative Agreement No. DE-FC52-08NA28302.

  20. Roadside tree/pole crash barrier field test

    Science.gov (United States)

    Wilson, A. H.

    1979-01-01

    A series of tests was carried out to evaluate the performance of a crash barrier designed to protect the occupants of an automobile from serious injury. The JPL barrier design is a configuration of empty aluminum beverage cans contained in a tear-resistant bag which, in turn, is encased in a collapsible container made of plywood and steel. Tests were conducted with a driven vehicle impacting the barrier. The basic requirements of NCHRP Report 153 were followed except that speeds of 30 mph rather than 60 mph were used. Accelerometer readings on the driver's helmet showed that the driver was never subjected to dangerous decelerations, and never experienced more than temporary discomfort. Also, all of the requirements of the cited report were met. An extrapolation of data indicated that the JPL barrier installed in front of a tree or telephone pole along a roadside would also have met the requirements at a speed of 40 mph.

  1. An adaptive single pole autoreclosure based on zero sequence power

    Energy Technology Data Exchange (ETDEWEB)

    Elkalashy, Nagy I.; Darwish, Hatem A.; Taalab, Abdel-Maksoud I.; Izzularab, Mohmmad A. [Electrical Engineering Department, Faculty of Engineering, Menoufiya University, Shebin Elkom 32511 (Egypt)

    2007-04-15

    In this paper, a novel adaptive single pole autoreclosure is introduced. This reclosure is based on monitoring the fundamental component of the zero sequence instantaneous power to detect the extinction instant of the arc in its secondary period. Thus, adaptive closing instant can be achieved. The concept of reclosure is validated via typical examples of transmission line exposed to ground arcing fault. Effects of fault location and load flow on the accuracy of the technique are examined. Discriminatory zones of the secondary arc period in the zero sequence power domains are determined. A proposed threshold for the reclosing instant is introduced and examined. Validation of the proposed algorithm is verified via Digital Signal Processing (DSP) experimental test set-up. The test results corroborate the efficacy of proposed technique. (author)

  2. Performance of claw-poled PM-stepping motor

    International Nuclear Information System (INIS)

    Liu, C.P.; Jeng, G.R.; Chen, W.C.; Tsai, M.C.; Wu, K.T.; Yao, Y.D.

    2007-01-01

    Present work is to analyze the performance of a permanent-magnetic (PM) stepping motor with claw poles by using the magnetic-circuit simulation technique. In this paper, we calculate the torque characteristics of the motor, such as the detent and the holding torques, and the step-position error by changing the gap between the upper and the lower stators and the staggered angle between the two stators. Through comparison of numerical data with experiment measurements, we found that the detent torque could be effectively reduced by increasing the stator-to-stator gap and further by decreasing the step-position error. Furthermore, the holding torque could be unchanged as the stator assemblage changed; however, it would be degenerated under the condition of low magnetization

  3. Lunar South Pole space water extraction and trucking system

    International Nuclear Information System (INIS)

    Zuppero, A.; Zupp, G.; Schnitzler, B.; Larson, T.K.; Rice, J.W.

    1998-03-01

    This concept proposes to use thermal processes alone to extract water from the lunar South Pole and launch payloads to low lunar orbit. Thermal steam rockets would use water propellant for space transportation. The estimated mass of a space water tanker powered by a nuclear heated steam rocket suggests it can be designed for launch in the Space Shuttle bay. The performance depends on the feasibility of a nuclear reactor rocket engine producing steam at 1,100 degrees Kelvin, with a power density of 150 Megawatts per ton of rocket, and operating for thousands of 20 minute cycles. An example uses reject heat from a small nuclear electric power supply to melt 17,800 tons per year of lunar ice. A nuclear heated steam rocket would use the propellant water to launch and deliver 3,800 tons of water per year to a 100 km low lunar orbit

  4. Bacterial diversity in snow on North Pole ice floes

    DEFF Research Database (Denmark)

    Hauptmann, Aviaja Zenia Edna Lyberth; Stibal, Marek; Bælum, Jacob

    2014-01-01

    sites clustered together when compared to the underlying environments of sea ice and ocean water. The Shannon indices ranged from 2.226 to 3.758, and the Chao1 indices showed species richness between 293 and 353 for the three samples. The relatively low abundances and diversity found in the samples......The microbial abundance and diversity in snow on ice floes at three sites near the North Pole was assessed using quantitative PCR and 454 pyrosequencing. Abundance of 16S rRNA genes in the samples ranged between 43 and 248 gene copies per millilitre of melted snow. A total of 291,331 sequences were...... indicate a lower rate of microbial input to this snow habitat compared to snow in the proximity of terrestrial and anthropogenic sources of microorganisms. The differences in species composition and diversity between the sites show that apparently similar snow habitats contain a large variation...

  5. Ruthenium therapy of choroidal melanomas of the posterior pole

    International Nuclear Information System (INIS)

    Langmann, G.; Faschinger, C.; Langmann, A.; Poier, E.

    1992-01-01

    The indications for conservative treatment of intraocular melanomas of the posterior pole with radioactive plaques are controversial. Melanomas located at the macula or adjacent to the fovea are regarded as relative contraindications for conservative treatment. Three melanomas of the macula have been treated at our department meanwhile. The tumor elevation ranged between 3.5 and 6 mm, the distance to the fovea between 0.5 and 2 dd. An average radiation dosage between 130 and 160 Gy was delivered to the apex of the tumors. The duration of observation was between 12 months to 4 years. The tumor regression was satisfactory in all 3 cases, additional photocoagulation was necessary in one case of incomplete tumor regression. Pretreatment visual acuity ranged between 0.8 and 0.1, posttreatment visual acuity between 0.8 and 0.25. In one case we observed a local radiation vasculopathy. General examination did not reveal any signs of metastases. (authors)

  6. Effect of materials and manufacturing on the bending stiffness of vaulting poles

    Science.gov (United States)

    Davis, C. L.; Kukureka, S. N.

    2012-09-01

    The increase in the world record height achieved in pole vaulting can be related to the improved ability of the athletes, in terms of their fitness and technique, and to the change in materials used to construct the pole. For example in 1960 there was a change in vaulting pole construction from bamboo to glass fibre reinforced polymer (GFRP) composites. The lighter GFRP pole enabled the athletes to have a faster run-up, resulting in a greater take-off speed, giving them more kinetic energy to convert into potential energy and hence height. GFRP poles also have a much higher failure stress than bamboo, so the poles were engineered to bend under the load of the athlete, thereby storing elastic strain energy that can be released as the pole straightens, resulting in greater energy efficiency. The bending also allowed athletes to change their vaulting technique from a style that involved the body remaining almost upright during the vault to one where the athlete goes over the bar with their feet upwards. Modern vaulting poles can be made from GFRP and/or carbon fibre reinforced polymer (CFRP) composites. The addition of carbon fibres maintains the mechanical properties of the pole, but allows a reduction in the weight. The number and arrangement of the fibres determines the mechanical properties, in particular the bending stiffness. Vaulting poles are also designed for an individual athlete to take into account each athlete’s ability and physical characteristics. The poles are rated by ‘weight’ to allow athletes to select an appropriate pole for their ability. This paper will review the development of vaulting poles and the requirements to maximize performance. The properties (bending stiffness and pre-bend) and microstructure (fibre volume fraction and lay-up) of typical vaulting poles will be discussed. Originally published as Davis C L and Kukureka S N (2004) Effect of materials and manufacturing on the bending stiffness of vaulting poles The Engineering of

  7. Key figures on climate France and Worldwide - 2017 Edition

    International Nuclear Information System (INIS)

    Baude, Manuel; Dussud, Francois-Xavier; Ecoiffier, Mathieu; Duvernoy, Jerome; Vailles, Charlotte; Moreau, Sylvain; Bottin, Anne; Hiblot, Guillaume

    2016-10-01

    In line with previous years, the 2017 edition of 'Key figures on climate' has been written in the context of the 22. Conference of the Parties on Climate Change (COP 22) held in Marrakech from 7 to 18 November 2016. This latest version, published as part of the new 'datalab' collection of the General commission for sustainable development was updated and expanded relative to the 2016 edition. New data sources have been used for the part on global CO 2 emissions. The part on climate policies was further developed, and notably deals with the Paris agreement adopted in December 2015 at COP 21. Moreover, the analysis of climate finance (current climate investments and climate finance needs) has been expanded. About the form, and with a goal of simplification, some data previously displayed in both a graph and a table is now presented only in a graph. Content: Part 1: What is climate change? This part summarizes the scientific basis of climate change, including indicators, causes and possible consequences of global warming. Part 2: Which amounts of greenhouse gases are emitted globally? The focus here is on the most relevant data related to global greenhouse gases (GHG) emissions, in particular the geographic distribution of these emissions. Part 3: How much greenhouse gas is emitted in Europe and in France? A complete overview of GHG emissions statistics in Europe and in France is presented in this part as well as estimates of the carbon footprint of French people. Part 4: What is the sectoral distribution of GHG emissions in Europe and in France? This part features the detailed evolution since 1990 of GHG emissions in the following economic sectors: energy sector, transports, industry, residential and tertiary, agriculture, forestry, land use and waste management. Part 5: Which climate policies in the world, in Europe and in France? The main climate policies are described at each level: global, European and French

  8. Determination of regional Euler pole parameters for Eastern Austria

    Science.gov (United States)

    Umnig, Elke; Weber, Robert; Schartner, Matthias; Brueckl, Ewald

    2017-04-01

    The horizontal motion of lithospheric plates can be described as rotations around a rotation axes through the Earth's center. The two possible points where this axes intersects the surface of the Earth are called Euler poles. The rotation is expressed by the Euler parameters in terms of angular velocities together with the latitude and longitude of the Euler pole. Euler parameters were calculated from GPS data for a study area in Eastern Austria. The observation network is located along the Mur-Mürz Valley and the Vienna Basin. This zone is part of the Vienna Transfer Fault, which is the major fault system between the Eastern Alps and the Carpathians. The project ALPAACT (seismological and geodetic monitoring of ALpine-PAnnonian ACtive Tectonics) investigated intra plate tectonic movements within the Austrian part in order to estimate the seismic hazard. Precise site coordinate time series established from processing 5 years of GPS observations are available for the regional network spanning the years from 2010.0 to 2015.0. Station velocities with respect to the global reference frame ITRF2008 have been computed for 23 sites. The common Euler vector was estimated on base of a subset of reliable site velocities, for stations directly located within the area of interest. In a further step a geokinematic interpretation shall be carried out. Therefore site motions with respect to the Eurasian Plate are requested. To obtain this motion field different variants are conceivable. In a simple approach the mean ITRF2008 velocity of IGS site GRAZ can be adopted as Eurasian rotational velocity. An improved alternative is to calculate site-specific velocity differences between the Euler rotation and the individual site velocities. In this poster presentation the Euler parameters, the residual motion field as well as first geokinematic interpretation results are presented.

  9. Diffusion Entropy: A Potential Neuroimaging Biomarker of Bipolar Disorder in the Temporal Pole.

    Science.gov (United States)

    Spuhler, Karl; Bartlett, Elizabeth; Ding, Jie; DeLorenzo, Christine; Parsey, Ramin; Huang, Chuan

    2018-02-01

    Despite much research, bipolar depression remains poorly understood, with no clinically useful biomarkers for its diagnosis. The paralimbic system has become a target for biomarker research, with paralimbic structural connectivity commonly reported to distinguish bipolar patients from controls in tractography-based diffusion MRI studies, despite inconsistent findings in voxel-based studies. The purpose of this analysis was to validate existing findings with traditional diffusion MRI metrics and investigate the utility of a novel diffusion MRI metric, entropy of diffusion, in the search for bipolar depression biomarkers. We performed group-level analysis on 9 un-medicated (6 medication-naïve; 3 medication-free for at least 33 days) bipolar patients in a major depressive episode and 9 matched healthy controls to compare: (1) average mean diffusivity (MD) and fractional anisotropy (FA) and; (2) MD and FA histogram entropy-a statistical measure of distribution homogeneity-in the amygdala, hippocampus, orbitofrontal cortex and temporal pole. We also conducted classification analyses with leave-one-out and separate testing dataset (N = 11) approaches. We did not observe statistically significant differences in average MD or FA between the groups in any region. However, in the temporal pole, we observed significantly lower MD entropy in bipolar patients; this finding suggests a regional difference in MD distributions in the absence of an average difference. This metric allowed us to accurately characterize bipolar patients from controls in leave-one-out (accuracy = 83%) and prediction (accuracy = 73%) analyses. This novel application of diffusion MRI yielded not only an interesting separation between bipolar patients and healthy controls, but also accurately classified bipolar patients from controls. © 2017 Wiley Periodicals, Inc.

  10. Pole-to-Pole Distribution of Stratospheric Black Carbon (Soot) Aerosol from Aircraft

    Science.gov (United States)

    Pueschel, R. F.; Ferry, G. V.; Verma, S.; Howard, S. D.; Strawa, Anthony W. (Technical Monitor)

    1995-01-01

    The distribution of black carbon (soot) aerosol (BCA) in the atmosphere is of interest for several reasons: (1) Because BCA has the highest absorption cross section of any compound known, it can absorb solar radiation to cause atmospheric warming. (2) Because it is a strong adsorber of gases, it can catalyze heterogeneous reactions to change the chemical composition of the atmosphere.(3) If aircraft are a major source of BCA, it is an important tracer of aircraft emissions. Analysis for BCA of impactor samples from Arctic and Antarctic deployments, utilizing particle morphology of scanning electron microscopy images, permits the following conclusions: (1) The BCA concentration in the northern stratosphere varies between 0 and 2.6 ng m-3 averaging 0.6 ng/cu m. (2) This BCA loading is commensurate with estimated fuel consumptions in the stratosphere by the current commercial fleet and an emission index E=0.03 g BCA per kg fuel burnt which was measured in jet exhaust at al titude.Thus, most stratospheric BCA in the northern stratosphere results from aircraft emissions. The background BCA concentration in the southern stratosphere varies between 0 and 0.6 ng cu m averaging 0.1 ng/cu m. This strong meridional gradient implies that stratospheric BCA residence time- is shorter than are mixing times between hemispheres. Projected annual fuel consumption of a future supersonic commercial fleet is 7E13 g. This fleet would increase stratospheric BCA loadings by a factor of 2-3, because almost all fuel would be burnt above the tropopause. An improved EI(BCA) by a factor of ten would result in an increase of stratospheric BCA loadings by approximately 50 %.

  11. Figure drawing as an expression of self-esteem.

    Science.gov (United States)

    Coopersmith, S; Sakai, D; Beardslee, B; Coopersmith, A

    1976-08-01

    Figure drawings were obtained from 97 preadolescent males who differed in self and behavioral assessments of self-esteem. These subjects had been selected from a much larger sample and represented five different types of self-esteem. The figure drawings were scored for 15 variables, dealing with formal characteristics, content, and global-interpretations of the total drawings. Five significant differences were obtained, with the content and global-interpretative categories proving more differentiating between self-esteem groups than did the formal characteristics. Behavioral expressions of self-esteem were more associated with figure drawing characteristics than were subjective evaluations. Discussion focuses on the nature of self-concept and self-esteem in children as a sensorimotor rather than symbolic expression.

  12. Cutting solid figures by plane - analytical solution and spreadsheet implementation

    Science.gov (United States)

    Benacka, Jan

    2012-07-01

    In some secondary mathematics curricula, there is a topic called Stereometry that deals with investigating the position and finding the intersection, angle, and distance of lines and planes defined within a prism or pyramid. Coordinate system is not used. The metric tasks are solved using Pythagoras' theorem, trigonometric functions, and sine and cosine rules. The basic problem is to find the section of the figure by a plane that is defined by three points related to the figure. In this article, a formula is derived that gives the positions of the intersection points of such a plane and the figure edges, that is, the vertices of the section polygon. Spreadsheet implementations of the formula for cuboid and right rectangular pyramids are presented. The user can check his/her graphical solution, or proceed if he/she is not able to complete the section.

  13. Figure Measurements of High-Energy-X-Ray Replicated Optics

    Science.gov (United States)

    Gubarev, Mikhail; Ramsey, Brian; Kester, Thomas; Engelhaupt, Darell; Speegle, Chet; Martin, Greg

    2003-01-01

    We are developing grazing incidence x-ray optics for a balloon-borne hard-x-ray telescope (HERO). The HERO mirror shells are fabricated using electroform-nickel replication off super-polished cylindrical mandrels. One of the sources for mirror resolution error is departure of the shell figure from prescription. We have modified a Vertical-scan Long Trace Profilometer (VLTP) in order to measure the figure of the inner surface of the HERO mirror shells for diameters as small as 76 mm. Mirror alignment method and sources for systematic errors will be discussed. Comparison of figure metrology of the mandrel and the shells will be presented together with results from x-ray tests.

  14. World Literature and the Figurative Push to Sublimate Space

    Directory of Open Access Journals (Sweden)

    Christian Giguere

    2015-12-01

    Full Text Available This paper examines the influence of Aristotle’s theory of place (topos on the conceptualization of cultural universality. Its main focus is in reinvesting the thought of Baruch Spinoza and Henri Bergson surrounding the fossilized spatial boundaries that limit understanding in order to scrutinize both the virtual and figurative processes inherent to the sketching of a universal human plane outside of local custom in certain literary works. This investigation yields a concept of “figurative agency” that is then delineated in the Tao Te Ching and Stevenson’s The Strange Case of Dr. Jekyll and Mr. Hyde in order to demonstrate how the concept might serve as a bridge between the extended space of a national culture and the virtual plane invested by world literature.Keywords: world literature, Henri Bergson, Spinoza, figurative agency, The Strange Case of Dr. Jekyll and Mr. Hyde, Tao Te-Ching, literary epistemology

  15. Energy management and renewable energies. Key figures for 2007

    International Nuclear Information System (INIS)

    2010-01-01

    After having recalled the different French, European and world objectives in terms of greenhouse gas emission reduction (globally or for different sectors: industry, housing and offices, transport, agriculture), and of renewable energy production and consumption, this document proposes data tables and figures describing the energy consumption evolution in France since 1970 (with respect to sectors as well as with respect to energy sources), the greenhouse gas emission evolution since 1990 and the share of each sector in these emissions. Other tables and figures give a more precise description of the housing sector, of the office buildings sector, of the transportation sector, of the manufacturing industry, and of renewable energies (production capacity, purchase tariffs)

  16. Software system for X-ray diffraction quantitative phase analysis

    International Nuclear Information System (INIS)

    Fuentes, L.; Herrera, V.; Rubio, E.

    1989-01-01

    A system of experimental methods and computer programs for X-ray diffraction analysis is presented. The most important cases occurring in practice are considered. Program MARIA for spectral analysis is described. The external standard method for powder analysis is presented. Program STANDEXT calculates the sample absorption coefficient, the concentrations and standard deviations by a least squares method. For the case of partly identified samples, the internal standard method is developed. All measured peak are considered in the calculations. Program STANDINT solves the concentrations of the identified phases, their errors and the sample's absorption coefficient. A modification is introduced in the so-called direct method for massive sample analysis. The effect of texture is characterized by model representation of the inverse pole figure associated to the sample diffracting surface. Program DIREC is proposed for titting texture-modulated theoretical diffraction patterns to experimental ones, thus calculating phase concentrations and corresponding errors. Examples are given in some applications

  17. Development of a field pole of 1 MW-class HTS motor

    International Nuclear Information System (INIS)

    Yuan, S; Kimura, Y; Miki, M; Felder, B; Tsuzuki, K; Izumi, M; Ida, T; Umemoto, K; Aizawa, K; Yokoyama, M

    2010-01-01

    We report a field-pole high-temperature superconductor (HTS) magnet designed for 1 MW-class motor for propulsion. The field pole is assembled to the rotor of the radial-type motor. Each field pole is composed of HTS-Bi2223 tape wound into coils which have been piled up as a double pancake coils. In the design concept of the motor, we employ field poles without iron core. We prepared the test field-pole coil, whose dimension is smaller than the designed one for 1 MW, and tested its performances after cooling under self-field and external magnetic field. We verified the operation with the minimum bend radius of the coils required in the motor design, while keeping an optimal current which is lower than the critical current of the field-pole coil. The test HTS field poles were successfully cooled down and operated under a magnetic field ranging up to 5 T. We report the results of the test field-pole coil and the manufacture of a practical racetrack coil with Bi2223 and discuss the adaptability to 1 MW-class motors.

  18. Experience on impregnation of wood.en poles with water borne salts

    African Journals Online (AJOL)

    part of pole treated. To ensure this diffusion of the preservative all around, the pole is pricked every. 8 - 10 cm. vertically and 4 - 5 cm peripherally. The treatment with COBRA was discontinued soon after for the following reasons:- I. Leechability. Since the process depends on osmosis, the preservative must be highly soluble ...

  19. The practice of pole dance as a leisure activity in Denmark

    DEFF Research Database (Denmark)

    Jensen, Andorra Lynn

    2015-01-01

    The aim of this study is to explore the how pole dance is practiced as a form of leisure activity in Denmark. The methodical approach is qualitative and inspired by ethnography. I have conducted a field study where I have observed and participated in the pole dance culture in Copenhagen from May...

  20. Converting point-wise nuclear cross sections to pole representation using regularized vector fitting

    Science.gov (United States)

    Peng, Xingjie; Ducru, Pablo; Liu, Shichang; Forget, Benoit; Liang, Jingang; Smith, Kord

    2018-03-01

    Direct Doppler broadening of nuclear cross sections in Monte Carlo codes has been widely sought for coupled reactor simulations. One recent approach proposed analytical broadening using a pole representation of the commonly used resonance models and the introduction of a local windowing scheme to improve performance (Hwang, 1987; Forget et al., 2014; Josey et al., 2015, 2016). This pole representation has been achieved in the past by converting resonance parameters in the evaluation nuclear data library into poles and residues. However, cross sections of some isotopes are only provided as point-wise data in ENDF/B-VII.1 library. To convert these isotopes to pole representation, a recent approach has been proposed using the relaxed vector fitting (RVF) algorithm (Gustavsen and Semlyen, 1999; Gustavsen, 2006; Liu et al., 2018). This approach however needs to specify ahead of time the number of poles. This article addresses this issue by adding a poles and residues filtering step to the RVF procedure. This regularized VF (ReV-Fit) algorithm is shown to efficiently converge the poles close to the physical ones, eliminating most of the superfluous poles, and thus enabling the conversion of point-wise nuclear cross sections.