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Sample records for nuclear orientation studies

  1. Nuclear orientation and nuclear structure

    International Nuclear Information System (INIS)

    Krane, K.S.

    1988-01-01

    The present generation of on-line nuclear orientation facilities promises to revolutionize the gathering of nuclear structure information, especially for the hitherto poorly known and understood nuclei far from stability. Following a brief review of the technological developments that have facilitated these experiments, the nuclear spectroscopic information that can be obtained is summarized. Applications to understanding nuclear structure are reviewed, and challenges for future studies are discussed. (orig.)

  2. Nuclear orientation studies of manganese in copper Kondo system

    International Nuclear Information System (INIS)

    Bakalyar, D.

    1977-08-01

    The internal field seen by the 54 Mn nuclei in a dilute (about 1 part per billion) manganese in copper Kondo system was measured using nuclear orientation. The measurements were made at temperatures on the order of 4 mK in applied fields of 5 kG to 40 kG. Temperatures were measured using a 60 Co in nickel nuclear orientation thermometer and were achieved by adiabatically demagnetizing an ingot of the hyperfine enhanced nuclear coolant PrCu 6 from temperatures of about 30 mK (the mixing chamber temperature of a dilution refrigerator). The data was temperature independent but there was evidence of iteractions between the manganese atoms at manganese concentrations of 1 / 2 part per million. The data was interpreted by assuming that the internal field consisted of the hyperfine field minus the applied field (i.e. the hyperfine field and applied field were aligned in opposite directions). The hyperfine field versus applied field data was compared to three approximate solutions to the Kondo Hamiltonian. Two of the solutions, one by Luther and Emery and the other by Goetze and Schlottmann, fit the data very well. The third solution, that proposed by Ishii, does not fit the data. Fitted to the data, the Luther-Emery solution predicts a saturation value of the hyperfine field of 303 kG whereas the Goetze-Schlottmann solution predicts a saturation value of 297 kG. The hyperfine field is only beginning to reach its saturation value with applied fields of 40 kG

  3. Low temperature nuclear orientation studies of nuclei far from stability

    International Nuclear Information System (INIS)

    Brown, D.E.

    1990-01-01

    One of the major current interests in nuclear physics is to study transitional nuclei which lie between well known regions of spherical and deformed nuclei. The neutron deficient Tellurium and Iodine isotopes are examples of such nuclei. In both cases, the influence of a πg 9/2 intruder orbital is expected to be strong at low excitation energies and at A ∼120. The 120 Te decay scheme has been investigated in detail by LTNO supported by γ-γ coincidences and conversion electron spectroscopy. An interaction of the level scheme using an IBM-2 calculation which allows for mixing between the ground state and a (4p-2h) intruder state is made. The success of this calculation provides strong evidence for the existence of the intruder configuration in 120 Te. In addition, the relative electric quadrupole moments of the ground states in 120-123 I have been measured. The light Platinum isotopes are also transitional nuclei. The ground state magnetic dipole and electric quadrupole moments have been measured for 185,187 Pt which lie inside the region in which the shape transition is known to occur. An interpretation of nuclear moments and level structures in the range 179≤A≤193 using a particle plus triaxial core shows that the shape change takes place gradually via a broad region in which the nuclear shape is triaxial. (author)

  4. Low-temperature nuclear orientation

    International Nuclear Information System (INIS)

    Stone, N.J.; Postma, H.

    1986-01-01

    This book comprehensively surveys the many aspects of the low temperature nuclear orientation method. The angular distribution of radioactive emissions from nuclei oriented by hyperfine interactions in solids, is treated experimentally and theoretically. A general introductory chapter is followed by formal development of the theory of the orientation process and the anisotropic emission of decay products from oriented nuclei, applied to radioactive decay and to reactions. Five chapters on applications to nuclear physics cover experimental studies of alpha, beta and gamma emission, nuclear moment measurement and level structure information. Nuclear orientation studies of parity non-conservation and time reversal asymmetry are fully described. Seven chapters cover aspects of hyperfine interactions, magnetic and electric, in metals, alloys and insulating crystals, including ordered systems. Relaxation phenomena and the combined technique of NMR detection using oriented nuclei are treated at length. Chapters on the major recent development of on-line facilities, giving access to short lived nuclei far from stability, on the use of nuclear orientation for thermometry below 1 Kelvin and on technical aspects of the method complete the main text. Extensive appendices, table of relevant parameters and over 1000 references are included to assist the design of future experiments. (Auth.)

  5. Nuclear orientation studies of rare-earth metals

    International Nuclear Information System (INIS)

    Krane, K.S.; Morgan, G.L.; Moses, J.D.

    1981-01-01

    The angular distributions of gamma rays from 166 sup(m)Ho and 160 Tb aligned at low temperatures in, respectively, Ho metal and Tb metal have been measured. Large hyperfine splittings, expected for the rare earths, have been deduced from the temperature dependence of the gamma ray anisotropies. Both samples show a macroscopic magnetic anisotropy which is not consistent with an interpretation in terms of a randomly oriented polycrystalline structure. (orig.)

  6. Nuclear orientation as a tool for studying the structure of very unstable nuclei

    International Nuclear Information System (INIS)

    Wood, J.L.

    1985-01-01

    With the availability of modern isotope separator on-line systems it has become possible to make broad and systematic studies of low-energy low-spin nuclear structure. A vital ingredient in such a program is unique spin-parity assignments to all low-lying levels. A most desirable complement to spin-parity information is detailed spectroscopic information. Obtaining such information far from stability is difficult because of low activity production. Nuclear orientation provides a means for obtaining spin assignments using singles measurements. This is less demanding on source intensities than γ-γ angular correlation coincidence measurements. Further, nuclear orientation can provide information on magnetic moments and on multipole mixing ratios. A number of structural problems are discussed: the need for unique spin assignments in systematics schemes; the need to distinguish between E2+E0 and M1 transitions; the importance of measuring E2-M1 mixing ratios; and the value of magnetic moment information. Particular emphasis is placed on the desirability of obtaining such information in the neutron-deficient Pt, Au, Hg, Tl, Pb and Bi isotopes, based upon the experimental program at the UNISOR facility. (Auth.)

  7. Laser induced nuclear orientation effects

    International Nuclear Information System (INIS)

    Burns, M.; Pappas, P.; Feld, M.S.; Murnick, D.E.

    1977-01-01

    Resonant laser radiation can orient metastable nuclei, resulting in spatially anisotropic emission of β or γ radiation. This technique can be used to obtain isomer shifts and nuclear moments and can lead to isomer separation. (Auth.)

  8. Nuclear orientation of on-line separated isotopes

    International Nuclear Information System (INIS)

    Vanneste, L.; Vandeplassche, D.; Walle, E. van; Geenen, J.; Nuytten, C.; Marshak, H.

    1981-01-01

    The purpose of nuclear orientation in the study of nuclei far from stability is explained. Various methods of nuclear orientation are compared. The Leuven setup and its initial performance are described. (orig.)

  9. On-line nuclear orientation

    International Nuclear Information System (INIS)

    Krane, K.S.

    1990-01-01

    This grant has as its overall goal the pursuit of on-line nuclear orientation experiments for the purpose of eliciting details of nuclear structure from the decays of neutron-deficient nuclei, such as those produced by the Holifield Heavy-Ion Research Facility at Oak Ridge and extracted by the UNISOR Isotope Separator. This paper discusses: refrigerator development; the decay of 184 Au; the decay of 191 Hg to 191 Au; the decay of 189 Pt to 189 Ir; the decays of 109,111 Pd; the decay of 172 Er; and solid angle corrections

  10. Hyperfine interactions measured by nuclear orientation technique

    International Nuclear Information System (INIS)

    Brenier, R.

    1982-01-01

    This report concerns the use of hyperfine interaction to magnetism measurements and to the determination of the nuclear structure of Terbium isotopes by the low temperature nuclear orientation technique. In the first part we show that the rhodium atom does not support any localized moment in the chromium matrix. The hyperfine magnetic field at the rhodium nuclear site follows the Overhauser distribution, and the external applied magnetic field supports a negative Knight shift of 16%. In the second part we consider the structure of neutron deficient Terbium isotopes. We introduce a coherent way of evaluation and elaborate a new nuclear thermometer. The magnetic moments allows to strike on the studied states configuration. The analysis of our results shows a decrease of the nuclear deformation for the lighter isotopes [fr

  11. Nuclear orientation experiments concerning odd-A gold isotopes

    International Nuclear Information System (INIS)

    Ligthart, H.J.

    1982-01-01

    This thesis describes nuclear spectroscopy aspects of nuclear orientation in the odd-A gold isotopes 191 Au, 193 Au, 195 Au and 197 Au. These isotopes lie in a transitional region between the spherical nuclei in the lead region and the strongly deformed rare earth isotopes. Following a general introduction to nuclear orientation, the experimental arrangement is described. A new technique is presented that applies in-beam recoil implantation inside the refrigerator itself and this was applied to the case of 191 Au. The three other gold isotopes were oriented using a conventional dilution refrigerator. The nuclear orientation experiments concerning 11/2 - isomers of the isotopes are described. The long-lived isomeric states were oriented using the large hyperfine field of gold in iron. Higher lying levels were studied by nuclear orientation of the Hg parent states. (Auth./C.F.)

  12. On line nuclear orientation: opportunity and challenge

    International Nuclear Information System (INIS)

    Stone, N.J.

    1985-01-01

    The development of the on-line nuclear orientation (OLNO) technique is reviewed. The present potential of the technique is discussed in the light of the attainable temperatures, the use of ion implantation and the required isotope flux. Limitations associated with spin-lattice relaxation are considered in some detail and a survey of accessible nuclei is presented. An outline comparison is given between OLNO and other methods for producing orientation of nuclei, for measuring nuclear spins and static moments and for the study of level structure and transition probabilities. The conclusion is drawn that the method in its present form has extensive potential over a wide range of nuclei. Future prospects for in-beam polarisation giving access to nuclei of shorter half lives are referred to briefly. (Auth.)

  13. Nuclear orientation on rare earth nickel alloys

    International Nuclear Information System (INIS)

    Nishimura, K.

    1998-01-01

    A hyperfine interaction study of the light rare earth elements, Ce, Pr, Nd and Pm, in the rare earth nickel and CeNi 2 Al 5 compounds by means of the low temperature nuclear orientation is summarised. The magnitudes and directions of the magnetic hyperfine fields obtained through measurements of γ-ray anisotropy and angular distributions reveal the magnetic structures of the ions. The experiments extracted peculiar results for the magnetic properties of the ions, and show certain novel features of the technique to the study of solid-state magnetism. Copyright (1998) Australian Journal of Physics

  14. Quadrupole moments measured by nuclear orientation

    International Nuclear Information System (INIS)

    Bouchta, H.

    1985-01-01

    Quadrupole interactions between the nuclei and solids have been studied with the low temperature nuclear orientation technique. The first series of measurements have been effected on the orientation of 195H g m and 197 Hg m , long lived daughter states in the 195 Au and 197 Au decay. The lifetimes of these states are of the same order as the spin-lattice relaxation time. The reorientation of the intermediate states has been taken into account extending the dipole relaxation mechanism to non-equidistant relaxing substates. The experimental nuclear quadrupole moments, thus deduced are slightly different from theoretical estimations. A new high precision method accessible to levels with 100 ns to 1 m lifetimes, the level mixing resonance on oriented nuclei (LMR/ON) has been elaborated in collaboration with LEUVEN university (Belgium). In this technique the nucleus is subject to a non colinear electric plus magnetic combined interaction. The quadrupole interaction of Ag[7/2, = 40 s] isomer with the electric field gradient in zinc has been established to better than 1% observing its level mixing resonances; and also the ratio of electric field gradients of silver in zinc to cadmium. The electric quadrupole moments of 106 Ag m , 107 Ag m and 109 Ag m have been established combining the level mixing resonances with classical low temperature quadrupole alignment measurements. The experimental values are in good agreement with theoretical calculations based on a semi-microscopical model using Yukawa potential [fr

  15. Summary remarks and prospects for on-line nuclear orientation

    International Nuclear Information System (INIS)

    Krane, K.S.; Hamilton, J.H.

    1984-01-01

    This paper reviews the use of on-line nuclear orientations as a method for determining hyperfine structure. Historical developments and future prospects for the technique are presented. The role that this technique can play in nuclear spectroscopy and the study of nuclei far from the beta stability are outlined

  16. A low temperature study of antiferromagnetic YbVO{sub 4} by NMR thermally detected by nuclear orientation

    Energy Technology Data Exchange (ETDEWEB)

    Hutchison, W.D.; Prandolini, M.J.; Harker, S.J.; Chaplin, D.H. [Australian Defence Force Academy, School of Physics, University College, University of New South Wales (Australia); Bowden, G.J. [University of New South Wales, School of Physics (Australia); Bleaney, B. [Clarendon Laboratory (United Kingdom)

    1999-09-15

    NMR-TDNO results using an external {sup 60}CoCo (hcp) nuclear orientation thermometer for non-irradiated, single crystal, antiferromagnetic YbVO{sub 4} are compared with those obtained earlier with neutron activated samples using both internal and external {gamma}-ray thermometers. Detailed comparisons are made for the {sup 171}Yb (I=1/2, 14.31% abundant) stable nucleus. This strongly asymmetric, largely homogeneous, resonance lineshape was retained and is readily power broadened. Extremely broad, field-dependent homogeneous thermometric responses are observed in the expected frequency range for the quadrupolar stable nucleus {sup 173}Yb (I=5/2, 16.13% abundant) for both irradiated and non-irradiated samples.

  17. Summary remarks and future prospects for on-line nuclear orientation

    International Nuclear Information System (INIS)

    Krane, K.S.; Hamilton, J.H.

    1984-01-01

    Results from various groups which use on-line low temperature nuclear orientation techniques are presented. Several nuclear parameters have been successfully studied: rotational levels, nuclear deformation, and decay modes. Future prospects include multiparameter analysis, relaxation and pre-orientation, new separators, and alpha decay studies. 33 refs., 5 figs

  18. Nuclear orientation of rare earth impurities in ferromagnetic host metals

    International Nuclear Information System (INIS)

    Keus, H.E.

    1981-01-01

    Experiments are described investigating the behaviour of the metals Nd and Lu as impurities in a ferromagnetic host metal - iron, cobalt and nickel. The systems have been studied with the aid of nuclear orientation, making use of the interactions between the atom nuclei and the electrons - the so called hyperfine interactions. (C.F.)

  19. Transfer of industry-oriented nuclear technology at NUCOR

    International Nuclear Information System (INIS)

    De Jesus, A.S.M.

    1983-10-01

    The transfer of industry-oriented nuclear technology at the Nuclear Development Corporation of South Africa (Pty) Ltd (NUCOR) is centred in a few divisions only, as most of the NUCOR's program is internally oriented. The industry-oriented activities include radiation technology, production of radioisotopes and application of nuclear techniques in solving problems of industry. The study is concerned mainly with the last of these activities. The general problem of transferring innovative technology is reviewed and a systems approach is used to analyse the transfer process at NUCOR, in terms of the organisation itself and its environment. Organisational strengths and weaknesses are identified and used as a basis to determine opportunities and threats. Possible objectives are formulated and a strategy to meet them is suggested. 'Demand-pull' as opposed to 'technology-push' is advanced as the main triggering mechanism in the transfer of industry-oriented nuclear technology. The importance of marketing this technology, as well as its commercialization, are discussed

  20. Recent applications of nuclear orientation to solid state physics

    International Nuclear Information System (INIS)

    Turrell, B.G.

    1985-01-01

    The author reviews how certain problems in solid state physics have been clarified by low temperature nuclear orientation and nuclear magnetic resonance of oriented nuclei. The advantages of these techniques, a brief survey of recent progress in traditional applications, and new developments are discussed, and, finally, future trends are suggested. (Auth.)

  1. Axial currents and nuclear spin orientation

    International Nuclear Information System (INIS)

    Minamisono, T.; Nojiri, Y.; Matsuta, K.

    1984-01-01

    This paper discusses the symmetries in the phenomena in which weak interaction is involved are largely violated, and it is still the up-to-date fore-front to study the structure of the nuclear weak currents and to learn the limitations on the applicabilities of the various relevant conservation laws as well as the nuclear structures studied by the β-decay. In this meeting, research works on the β-decay processes for the past 10 years have focused on the recoil order experiments designed to determine the limits of validity of the conserved vector current (CVC) theory and to test the G parity conservation i.e. the search for the second class currents (SCC), as well as to study the structure of the axial currents. Concerning the SCC, after intensive studies, but with not conclusive results, on the ft values of mirror β-decays in the early seventies, the correlation-type measurements on mass A=8, 12, 19 and 20 systems have been also carried out in various laboratories from 1975. Among those, concerns have been with the mass A=12 nuclear triad, /sup 12/B-/sup 12/C-/sup 12/N, the energy diagram of which is well known. The choice of this triad is because of the test done for the strong CVC predictions using the spectrum shapes of β-rays combined with the experimental analogue γ-width in /sup 12/C as well as those relevant nuclear structures. Thus, this A=12 system provides the best testing ground for the research described above

  2. Laser induced nuclear orientation: intersection of laser and nuclear spectroscopy

    International Nuclear Information System (INIS)

    Burns, M.; Pappas, P.; Field, M.S.

    1978-01-01

    The application of lasers to the study of hyperfine structure is reviewed with emphasis placed on the ability of the laser beam to align the nuclei in a sample. This aligning effect is especially useful if the nuclei are unstable as then the angular distribution of the subsequent nuclear radiation may be effected and information will by given about the nuclear parameters. (B.R.H.)

  3. Nuclear quality assurance operating philosophy: A quality-oriented approach

    International Nuclear Information System (INIS)

    Corcoran, W.R.; Geiger, J.E.; Heibel, R.E.; Cotton, J.B.; Sabol, A.R.

    1992-01-01

    Quality assurance programs have been part of the nuclear utility management process since the publication of the draft of 10CFR50 Appendix B in the late 1960s. The unwritten operational philosophy of nuclear quality assurance organizations focused on compliance with federal regulations. Adverse experiences, including operational events and extended shutdowns, prompted the gradual adoption of isolated practices extending beyond compliance orientation. These practices have an orientation that accommodates a definition of quality, a perspective of the role of nuclear quality assurance organizations in the overall concept of defense-in-depth, a definition of the segments of the nuclear quality assurance mission, and recent advances in the understanding of self-assessment. Observation of these practices at various nuclear utilities resulted in a syntheses of practices and approaches into a coherent quality-oriented nuclear quality assurance operating philosophy that is not totally adopted at any one utility

  4. Nuclear orientation facility at Charles University in Prague

    International Nuclear Information System (INIS)

    Rotter, M.; Trhlik, M.; Hubalovsky, S.; Srnka, A.; Dupak, J.; Ota, J.; Pari, P.

    2000-01-01

    A low temperature nuclear orientation facility was installed at Charles University in the laboratory of the Department of Low Temperature Physics on the Faculty of Mathematics and Physics in Prague. The solid state as well as nuclear physics research is pursued on this facility. (author)

  5. Bus-oriented digital control techniques in nuclear power plants

    International Nuclear Information System (INIS)

    Salm, M.

    1987-01-01

    The author states the conservative principles which govern the authorization procedures for nuclear reactor control systems. Using the example of a feedwater supply regulator, employing a digital, bus-oriented control system, he describes how the stigma attached to the word nuclear can be alleviated. (G.T.H.)

  6. The on-line low temperature nuclear orientation facility NICOLE

    International Nuclear Information System (INIS)

    Ohtsubo, T; Roccia, S; Gaulard, C; Stone, N J; Stone, J R; Köster, U; Nikolov, J; Veskovic, M; Simpson, G S

    2017-01-01

    We review major experiments and results obtained by the on-line low temperature nuclear orientation method at the NICOLE facility at ISOLDE, CERN since the year 2000 and highlight their general physical impact. This versatile facility, providing a large degree of controlled nuclear polarization, was used for a long-standing study of magnetic moments at shell closures in the region Z  = 28, N  = 28–50 but also for dedicated studies in the deformed region around A  ∼ 180. Another physics program was conducted to test symmetry in the weak sector and constrain weak coupling beyond V–A . Those two programs were supported by careful measurements of the involved solid state physics parameters to attain the full sensitivity of the technique and provide interesting interdisciplinary results. Future plans for this facility include the challenging idea of measuring the beta–gamma–neutron angular distributions from polarized beta delayed neutron emitters, further test of fundamental symmetries and obtaining nuclear structure data used in medical applications. The facility will also continue to contribute to both the nuclear structure and fundamental symmetry test programs. (paper)

  7. UNISOR on-line nuclear orientation facility (UNISOR/NOF)

    International Nuclear Information System (INIS)

    Girit, I.C.; Alton, G.D.; Bingham, C.R.; Carter, H.K.; Simpson, M.L.; Cole, J.D.; Croft, W.L.; Hamilton, J.H.; Jones, E.F.; Gore, P.M.; Kormicki, J.; Xie, H.; Kern, B.D.; Krane, K.S.; Xu, Y.S.; Mantica, P.F. Jr.; Zimmermann, B.E.; Nettles, W.G.; Zganjar, E.F.; Kortelahti, M.O.; Newbolt, W.B.

    1988-01-01

    The UNISOR on-line nuclear orientation facility (UNISOR/NOF) consists of a 3 He- 4 He dilution refrigerator on line to the isotope separator. Nuclei are implanted directly into a target foil which is soldered to the bottom accessed cold finger of the refrigerator. A 1.5 T superconducting magnet polarizes the ferromagnetic target foils and determines the axis of symmetry. Up to eight gamma detectors can be positioned around the refrigerator, each 9 cm from the target. A unique feature of this system is that the k=4 term in the directional distribution function can be directly and unambigously deduced so that a single solution for the mixing ratio can be found. The first on-line experiment at this facility reported here was a study of the decay of the 191 Hg and 193 Hg isotopes. (orig.)

  8. Changes in Nuclear Orientation Patterns of Chromosome 11 during Mouse Plasmacytoma Development

    Directory of Open Access Journals (Sweden)

    Ann-Kristin Schmälter

    2015-10-01

    Full Text Available Studying changes in nuclear architecture is a unique approach toward the understanding of nuclear remodeling during tumor development. One aspect of nuclear architecture is the orientation of chromosomes in the three-dimensional nuclear space. We studied mouse chromosome 11 in lymphocytes of [T38HxBALB/c]N mice with a reciprocal translocation between chromosome X and 11 (T38HT(X;11 exhibiting a long chromosome T(11;X and a short chromosome T(X;11 and in fast-onset plasmacytomas (PCTs induced in the same strain. We determined the three-dimensional orientation of chromosome 11 using a mouse chromosome 11 specific multicolor banding probe. We also examined the nuclear position of the small translocation chromosome T(X;11 which contains cytoband 11E2 and parts of E1. Chromosomes can point either with their centromeric or with their telomeric end toward the nuclear center or periphery, or their position is found in parallel to the nuclear border. In T38HT(X;11 nuclei, the most frequently observed orientation pattern was with both chromosomes 11 in parallel to the nuclear border (“PP”. PCT cells showed nuclei with two or more copies of chromosome 11. In PCTs, the most frequent orientation pattern was with one chromosome in parallel and the other pointing with its centromeric end toward the nuclear periphery (“CP”. There is a significant difference between the orientation patterns observed in T38HT(X;11 and in PCT nuclei (P < .0001.

  9. The new nuclear orientation facility at Charles University Prague

    International Nuclear Information System (INIS)

    Rotter, M.; Hubalovsky, S.; Trhlik, M.; Janotova, J.; Dupak, J.; Srnka, A.; Forget, P.; Pari, P.

    1996-01-01

    The Nuclear Orientation facility for solid state physics investigations was installed at the Department of Low Temperature Physics of the Faculty of Mathematics and Physics, Charles University. The small 'top loaded' dilution refrigerator is used for cooling radioactive metallic samples to 10 mK in 4 T magnetic field. The construction and thermodynamic parameters of the 'French type' refrigerator working without 1 K precooling stage are described. (author)

  10. Nuclear orientation experiments on the magnetic moments of europium and gadolinium nuclei

    International Nuclear Information System (INIS)

    Berg, F.G. van den.

    1984-01-01

    In this thesis, experimental results on the ground state nuclear magnetic moments of europium and gadolinium isotopes are presented. The nuclear orientation experiments were performed on europium and gadolinium nuclei embedded in several host lattices. Attention is paid to the hyperfine interactions of the ions. Nuclear moments are discussed in the context of nuclear shell model. The theoretical framework is described for nuclear structure and low temperature nuclear orientation. Furthermore, the experimental techniques, the technical arrangement of the orientation apparatus, the methods for radiative detection and the use of nuclear orientation thermometry are described. (Auth.)

  11. Mutual perceptions between nuclear plant employees and general public on nuclear policy communication applying the Co-orientation analysis model

    International Nuclear Information System (INIS)

    Kim, Bong Chul; Kim, Ji Hyun; Chung, Woon Kwan

    2015-01-01

    This study examines mutual perceptions between general public and nuclear plant employees on understanding nuclear policy communication applying the co-orientation model. The total of 414 responses were analyzed including 211 of the general public and 203 of plant employees. Results indicate that agreement between general public and plant employees is relatively high, in that general public tends to have negative evaluation to nuclear policy communication, but plant employees tends to have positive one. In terms of congruence, general public perceive that plant employees might have more positive evaluation than themselves, and nuclear plant employees perceive that general public might have more negative evaluation than themselves. Finally, in terms of accuracy, general public accurately estimate how nuclear plant employees perceive on policy communication, whereas nuclear plant employees unaccurately estimate how general public perceive on policy communication

  12. Mutual perceptions between nuclear plant employees and general public on nuclear policy communication applying the Co-orientation analysis model

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Bong Chul; Kim, Ji Hyun; Chung, Woon Kwan [Chosun University, Gwangju (Korea, Republic of)

    2015-02-15

    This study examines mutual perceptions between general public and nuclear plant employees on understanding nuclear policy communication applying the co-orientation model. The total of 414 responses were analyzed including 211 of the general public and 203 of plant employees. Results indicate that agreement between general public and plant employees is relatively high, in that general public tends to have negative evaluation to nuclear policy communication, but plant employees tends to have positive one. In terms of congruence, general public perceive that plant employees might have more positive evaluation than themselves, and nuclear plant employees perceive that general public might have more negative evaluation than themselves. Finally, in terms of accuracy, general public accurately estimate how nuclear plant employees perceive on policy communication, whereas nuclear plant employees unaccurately estimate how general public perceive on policy communication.

  13. Laser-induced nuclear orientation and gamma anisotropy in sodium

    International Nuclear Information System (INIS)

    Pappas, P.G.

    1980-12-01

    The use of laser optical pumping to induce nuclear orientation in several isotopes and one isomer of atomic sodium vapor is described. Essentially complete nuclear polarization, P > 90%, has been achieved in stable 23 Na when pumping with modest laser intensities (I approx. = 10 mW/cm 2 ). The volume of the sample cell was approximately 10 cc, and was filled with a sodium density of about 10'' atoms/cc. Complete coverage of the Doppler distribution was accomplished with the use of trace amounts (less than or equal to 1 torr) of argon buffer gas to induce velocity changing collisions. A theoretical model which accurately predicts the amount of polarization is developed. The orientation of nuclei which are unstable to gamma decay can manifest itself in anisotropic gamma ray emission. This anisotropy can be used to measure isotope and isomer shifts, from which nuclear properties can be derived. Gamma anisotropy was observed in two systems, 22 Na and /sup 24m/Na. From the observed anisotropy in /sup 24m/Na, a negative sign for the g factor is determined. Values are derived for the magnetic moment, μ = 2.56 +- 0.64 nm, and the isomer shift, deltaν/sub 24m/ = 288 +- 191 MHz (D1 line). A model is described which relates various laser and fubber gas parameters to the observed gamma anisotropy lineshape. This model facilitates the extraction of physical parameters from knowledge of the laser frequency at which the anisotropy is a maximum

  14. Problem-oriented project studies

    DEFF Research Database (Denmark)

    Nielsen, Jørgen Lerche; Danielsen, Oluf

    2010-01-01

    and marking papers / essays is complemented and in some way overruled by a new role as supervisor and facilitator for the group of students working with a research problem, they themselves have picked. However different dimensions of this new teacher role can be seen – from expert in an academic field (result......-oriented focusing on how the final product demonstrates the students’ ‘correct’ way to handle the academic aspects of the subject in mind) to a role more focusing on processes, methodological dimensions and stressing the importance of a reflexive approach. Some teachers may even tend to take on a role...

  15. Nuclear-physical investigations with oriented nuclei and polarized neutrons

    International Nuclear Information System (INIS)

    Alfimenkov, V.P.; Pikel'ner, L.B.; Sharapov, Eh.I.

    1980-01-01

    Several experiments with oriented nuclei and polarized neutrons are considered, as well as some methods of polarization of neutrons and nuclei. Experiments on the study of spin dependence of neutron cross sections for fissionable and nonfissionable nuclei interaction of polarized neutrons with polarized nuclei as well as measurement of magnetic momenta of compound-states of rare-earth nuclei. Described are some investigations with thermal neutrons: study on spin dependence of neutron scattering length with nuclei and gamma radiation of neutron radiation capture. Difficulties of production of high-intensive polarized neutron beams and construction of oriented targets are noted. Neutron polarization by transmission of them through a polarized proton target is the most universal method (out of existing methods) in the energy range under consideration [ru

  16. Nuclear structure studies

    International Nuclear Information System (INIS)

    Walters, W.B.

    1992-01-01

    New results are reported for the decay and nuclear orientation of 114,116 I and 114 Sb as well as data for the structure of daughter nuclides 114,116 Te. New results for IBM-2 calculations for the structure of 126 Xe are also reported. A new approach to the problem of the underproduction of A = 120 nuclides in the astrophysical r-process is reported

  17. On several computer-oriented studies

    International Nuclear Information System (INIS)

    Takahashi, Ryoichi

    1982-01-01

    To utilize fully digital techniques for solving various difficult problems, nuclear engineers have recourse to computer-oriented approaches. The current trend, in such fields as optimization theory, control system theory and computational fluid dynamics reflect the ability to use computers to obtain numerical solutions to complex problems. Special purpose computers will be used as the integral part of the solving system to process a large amount of data, to implement a control law and even to produce a decision-making. Many problem-solving systems designed in the future will incorporate special-purpose computers as system component. The optimum use of computer system is discussed: why are energy model, energy data base and a big computer used; why will the economic process-computer be allocated to nuclear plants in the future; why should the super-computer be demonstrated at once. (Mori, K.)

  18. DECISION MAKING STYLES AND STUDY ORIENTATION

    OpenAIRE

    Govind, K.; Amalor, D.

    2016-01-01

    The present study is an attempt to study the relationship of Study Orientation (Study Habits and Attitudes) with decision making styles among higher secondary students. Survey of Study Habits and Attitudes (SSHA) developed by Brown and Holtzman (1967) and Flinders Decision Making Questionnaires I and II (DMQ-I and DMQ-II) developed by Mann (1982) were used to collect data. As large as 148 Higher Secondary Students pursuing the first year study of Higher Secondary Course (HSC) participated in ...

  19. Red orientalism: Mikhail Pavlovich and Marxist Oriental studies in early Soviet Russia

    NARCIS (Netherlands)

    Kemper, M.

    2010-01-01

    Marxist Oriental Studies in early Soviet Russia emerged in opposition to the 'bourgeois' Russian tradition of classical Oriental scholarship; rather than studying texts and history, Bolshevik Orientalists saw their task in providing the Soviet government with the necessary political and

  20. Study of a magnetically oriented lyotropic mesophase

    International Nuclear Information System (INIS)

    Amaral, L.Q.; Pimentel, C.A.; Tavares, M.R.; Vanin, J.A.

    A study of a magnetically oriented lyomesophase formed by a quaternary system (Na decyl sulfate/water/decanol/ Na sulfate) is reported. Small angle X-ray diffraction measurements have been performed on unoriented samples and samples previously subjected to the action of magnetic fields (H vector). A model of finite planar micelles surrounded by water is proposed [pt

  1. Development of object-oriented software technique in field of high energy and nuclear physics

    International Nuclear Information System (INIS)

    Ye Yanlin; Ying Jun; Chen Tao

    1997-01-01

    The background for developing object-oriented software technique in high energy and nuclear physics has been introduced. The progress made at CERN and US has been outlined. The merit and future of various software techniques have been commented

  2. Nuclear forensics case studies

    International Nuclear Information System (INIS)

    Fedchenko, Vitaly

    2016-01-01

    The objective of this presentation is to share three case studies from the Institute of Transuranium Elements (ITU) which describe the application of nuclear forensics to events where nuclear and other radioactive material was found to be out of regulatory control

  3. Orientation sensitive deformation in Zr alloys: experimental and modeling studies

    International Nuclear Information System (INIS)

    Srivastava, D.; Keskar, N.; Manikrishna, K.V.; Dey, G.K.; Jha, S.K.; Saibaba, N.

    2016-01-01

    Zirconium alloys are used for fuel cladding and other structural components in pressurised heavy water nuclear reactors (PHWR's). Currently there is a lot of interest in developing alloys for structural components for higher temperature reactor operation. There is also need for development of cladding material with better corrosion and mechanical property of cladding material for higher and extended burn up applications. The performance of the cladding material is primarily influenced by the microstructural features of the material such as constituent phases their morphology, precipitates characteristics, nature of defects etc. Therefore, the microstructure is tailored as per the performance requirement by through controlled additions of alloying elements, thermo-mechanical- treatments. In order to obtain the desired microstructure, it is important to know the deformation behaviour of the material. Orientation dependent deformation behavior was studied in Zr using a combination of experimental and modeling (both discrete and atomistic dislocation dynamics) methods. Under the conditions of plane strain deformation, it was observed that single phase Zr, had significant extent of deformation heterogeneity based on local orientations. Discrete dislocation dynamics simulations incorporating multi slip systems had captured the orientation sensitive deformation. MD dislocations on the other hand brought the fundamental difference in various crystallographic orientations in determining the nucleating stress for the dislocations. The deformed structure has been characterized using X-ray, electron and neutron diffraction techniques. The various operating deformation mechanism will be discussed in this presentation. (author)

  4. Concept of object-oriented intelligent support for nuclear reactor designing

    International Nuclear Information System (INIS)

    Yoshikawa, H.; Gofuku, A.

    1991-01-01

    A concept of object-oriented intelligent CAD/CAE environment is proposed for the conceptual designing of advanced nuclear reactor system. It is composed of (i) object-oriented frame-structure database which represents the hierarchical relationship of the composite elements of reactor core and the physical properties, and (ii) object-oriented modularization of the elementary calculation processes, which are needed for reactor core design analysis. As an example practise, an object-oriented frame structure is constructed for representing a 3D configuration of a special fuel element of a space reactor design, by using a general-purpose expert system shell ESHELL/X. (author)

  5. Main orientations of the JRC nuclear fission programme

    International Nuclear Information System (INIS)

    Haas, Didier

    2009-01-01

    Full text: The European Union has taken the lead in responding to climate change, announcing far-reaching initiatives from promoting energy efficient light bulbs and cars to new building codes, carbon trading schemes, the development of low carbon technologies and greater competition in energy markets. Nuclear energy remains central to the energy debate in Europe. One third of EU electricity is produced via nuclear fission, and eight new reactors are under construction. Traditionally non-nuclear countries are manifesting an interest in building nuclear power plants while the clock is ticking down on Belgium, Germany and the UK's decision to renew or close existing nuclear infrastructures. Sustainability in nuclear energy production is ensured in the medium term due to the large and diverse uranium resources available in politically stable countries around the world. The quantities available with high probability ensure more than hundred year of nuclear energy production. This extrapolation depends however on the forecast for the future nuclear energy production. The use of fast neutron breeder reactors would lead to a much more efficient utilisation of the uranium, extending the sustainable energy production to several thousands of years. The presentation will outline the fast reactors of the new generation currently being developed within the 'Generation IV' initiative. Broad conclusions of the presentation will be that: -There is a growing nuclear renaissance in Europe for good reason; - Nuclear energy is a green and sustainable option for Europe and indeed the world's energy needs; - Nuclear energy is a competitive energy that makes economic sense; - Nuclear fission reactors have a safety and environmental track record that is second to none, yet public misperceptions persist and must be tackled; - Waste management solutions exist while new developments hold great promise; - The evolution and promise of nuclear technologies must also be examined against the

  6. Studies of nuclear processes

    International Nuclear Information System (INIS)

    Ludwig, E.J.

    1993-01-01

    Results for the period 1 Sep 92 through 31 Aug 93 are presented in nearly a hundred brief papers, some of which present new but preliminary data. Activities reported may be grouped as follows: Fundamental symmetries in the nucleus (parity-mixing measurements, time reversal invariance measurements, signatures of quantum chaos in nuclei), Internucleon reactions (neutron -- proton interactions, the neutron -- neutron scattering length, reactions between deuterons and very light nuclei), Dynamics of very light nuclei (measurements of D states of very light nuclei by transfer reactions, nuclear reactions between very light nuclei, radiative capture reactions with polarized sources), The many-nucleon problem (nuclear astrophysics, high-spin spectroscopy and superdeformation, the nuclear mean field: Dispersive relations and nucleon scattering, configuration mixing in 56 Co and 46 Sc using (d,α) reactions, radiative capture studies, high energy resolution resonance studies at 100--400 keV, nuclear data evaluation for A=3--20), Nuclear instruments and methods (FN tandem accelerator operation, KN accelerator operation and maintenance, atomic beam polarized ion source, development of techniques for determining the concentration of SF 6 in the accelerator insulating gas mixture, production of beams and targets, detector systems, updating of TeX, Psprint, and associated programs on the VAX cluster), and Educational Activities

  7. A monocrystal of 59Co as a nuclear orientation thermometer in neutron experiments with oriented targets

    International Nuclear Information System (INIS)

    Fasoli, U.; Galeazzi, G.; Pavan, P.; Toniolo, D.; Zago, G.; Zannoni, R.

    1980-01-01

    An apparatus for measuring temperatures in the millikelvin region is described based on the 'deformation effect' on fast neutron transmission through an aligned 59 Co monocrystal, employing a 252 Cf pill as the neutron source. A statistical accuracy of a few percent in a few minutes is obtainable with a heat input of some tens of pW. The apparatus is suitable in neutron experiments with oriented targets when the gamma-ray background hinders the use of gamma-ray anisotropy thermometers. In these and similar cases, in which the temperature must be held constant for long periods, the large heat capacity of the cobalt sample is not a drawback. (orig.)

  8. The use of an object oriented technique for fault diagnosis in nuclear reactors

    International Nuclear Information System (INIS)

    Jalel, N.A.; Nicholson, H.

    1990-11-01

    In recent years there has been an increased growth of interest in object oriented programming which is a new approach to software construction having wide application. The possibility of using object oriented programming to build a software package that will assist the nuclear reactor operator in diagnosing any faults or alarms in the Loss Of Fluid Test (LOFT), a small scale pressurised water reactor, reactor is investigated in this work. (author)

  9. Nuclear spectroscopic studies

    International Nuclear Information System (INIS)

    Bingham, C.R.; Guidry, M.W.; Riedinger, L.L.; Sorensen, S.P.

    1994-01-01

    The Nuclear Physics group at UTK is involved in heavy-ion physics including both nuclear structure and reaction mechanisms. During the last year experimental work has been in 3 broad areas: structure of nuclei at high angular momentum, structure of nuclei far from stability, and ultra-relativistic heavy-ion physics. Results in these areas are described in this document under: properties of high-spin states, study of low-energy levels of nuclei far from stability, and high-energy heavy-ion physics (PHENIX, etc.). Another important component of the work is theoretical interpretation of experimental results (Joint Institute for Heavy Ion Research)

  10. Nuclear war effects studied

    Science.gov (United States)

    Widespread starvation resulting from changes in climate in the aftermath of a large-scale nuclear war could kill far more people than would the bombs themselves. That prediction was made in a recent study by the Scientific Committee on Problems of the Environment (SCOPE), an a rm of the International Council of Scientific Unions (ICSU). “Noncombatant and combatant countries alike” would risk mass starvation; SCOPE predicted that all told, 2.5 billion people could die as a result of crop failures and breakdowns in food distribution after a nuclear war.

  11. Nuclear Industry Family Study

    International Nuclear Information System (INIS)

    1993-01-01

    This is a copy of the U.K.A.E.A. Question and Answer brief concerning an epidemiological study entitled the Nuclear Industry Family Study, to investigate the health of children of AEA, AWE, and BNFL Workers. The study is being carried out by an independent team of medical research workers from the London School of Hygiene and Tropical Medicine, and the Imperial Cancer Research Fund. (UK)

  12. Improving practical training ability at Nuclear Research Institute oriented to nuclear human resource development within First Phase

    International Nuclear Information System (INIS)

    Nguyen Xuan Hai; Nguyen Nhi Dien; Pham Dinh Khang; Pham Ngoc Tuan; Tuong Thi Thu Huong

    2016-01-01

    This report presents results of a research project “Improving practical training ability at Nuclear Research Institute oriented to nuclear human resource development within first phase”. In the frameworks of the project, a guiding document on 27 Ortec’s experiments was translated into Vietnamese. Several equipment are used in the experiments such as neutron howitzer, gamma counter, multi-channel analyzer and alpha-gamma coincidence spectroscopy were designed and fabricated. These products contributed to improving the ability of research and training of Training and Education Center, Nuclear Research Institute (NRI). (author)

  13. Market Orientation in University: A Case Study

    Science.gov (United States)

    Kuster, Ines; Aviles-Valenzuela, Maria Elena

    2010-01-01

    Purpose: The paper aims to analyse the relationship between market orientation (MO) and results in the field of higher education, considering the importance of university teaching staff MO in relation to satisfaction and establishing that this orientation is directly and positively affected by the MO of the upper hierarchical levels. The focus is…

  14. Weak interaction studies from nuclear beta decay

    International Nuclear Information System (INIS)

    Morita, M.

    1981-01-01

    The studies performed at the theoretical nuclear physics division of the Laboratory of Nuclear Studies, Osaka University, are reported. Electron spin density and internal conversion process, nuclear excitation by electron transition, beta decay, weak charged current, and beta-ray angular distributions in oriented nuclei have been studied. The relative intensity of internal conversion electrons for the case in which the radial wave functions of orbital electrons are different for electron spin up and down was calculated. The calculated value was in good agreement with the experimental one. The nuclear excitation following the transition of orbital electrons was studied. The calculated probability of the nuclear excitation of Os 189 was 1.4 x 10 - 7 in conformity with the experimental value 1.7 x 10 - 7 . The second class current and other problems on beta-decay have been extensively studied, and described elsewhere. Concerning weak charged current, the effects of all induced terms, the time component of main axial vector, all partial waves of leptons, Coulomb correction for the electrons in finite size nuclei, and radiative correction were studied. The beta-ray angular distribution for the 1 + -- 0 + transition in oriented B 12 and N 12 was investigated. In this connection, investigation on the weak magnetism to include all higher order corrections for the evaluation of the spectral shape factors was performed. Other works carried out by the author and his collaborators are also explained. (Kato, T.)

  15. Library of problem-oriented programs for solving problems of atomic and nuclear physics

    International Nuclear Information System (INIS)

    Kharitonov, Yu.I.

    1976-01-01

    The Data Centre of the Leningrad Institute of Nuclear Physics (LIYaF) is working on the establishment of a library of problem-oriented computer programs for solving problems of atomic and nuclear physics. This paper lists and describes briefly the programs presently available to the Data Centre. The descriptions include the program code numbers, the program language, the translator for which the program is designed, and the program scope

  16. Nuclear site selection studies

    International Nuclear Information System (INIS)

    Gharib, A.; Zohoorian Izadpanah, A.A.; Iranmanesh, H.

    2000-01-01

    It is of special importance, especially from the nuclear safety viewpoint, to select suitable sites for different nuclear structures with the considered future activities. Site selection sometimes involves high costs not necessarily for merely selecting of site but for some preliminary measures to be taken so as the site may have the necessary characteristics. The more suitable the natural characteristics of the site for the considered project, the more successful and efficient the project, the lower the project costs and the longer the project operation period. If so, the project will cause the growth of public culture and sustainable socioeconomic development. This paper is the result of the conclusion of numerous massive reports of this activity in the preliminary phase based on theories, practices and the related safety principles on this ground as well as the application of data and information of the past and a glance to the future. The conception of need for a site for medium structures and nuclear research projects and how to perform this process are presented step by step here with a scientific approach to its selection during the investigations. In this study, it is practically described how the site is selected, by determining and defining the characteristics of research and nuclear projects with medium structures and also its fitting to the optimum site. The discovered sites typically involve the best advantages in technical and economic aspects and no particular contrast with the concerned structures

  17. Nuclear standardization development study

    International Nuclear Information System (INIS)

    Pan Jianjun

    2010-01-01

    Nuclear industry is the important part of national security and national economic development is key area of national new energy supported by government. nuclear standardization is the important force for nuclear industry development, is the fundamental guarantee of nuclear safe production, is the valuable means of China's nuclear industry technology to the world market. Now nuclear standardization faces to the new development opportunity, nuclear standardization should implement strategy in standard system building, foreign standard research, company standard building, and talented people building to meet the requirement of nuclear industry development. (author)

  18. Comparison of Property-Oriented Basis Sets for the Computation of Electronic and Nuclear Relaxation Hyperpolarizabilities.

    Science.gov (United States)

    Zaleśny, Robert; Baranowska-Łączkowska, Angelika; Medveď, Miroslav; Luis, Josep M

    2015-09-08

    In the present work, we perform an assessment of several property-oriented atomic basis sets in computing (hyper)polarizabilities with a focus on the vibrational contributions. Our analysis encompasses the Pol and LPol-ds basis sets of Sadlej and co-workers, the def2-SVPD and def2-TZVPD basis sets of Rappoport and Furche, and the ORP basis set of Baranowska-Łączkowska and Łączkowski. Additionally, we use the d-aug-cc-pVQZ and aug-cc-pVTZ basis sets of Dunning and co-workers to determine the reference estimates of the investigated electric properties for small- and medium-sized molecules, respectively. We combine these basis sets with ab initio post-Hartree-Fock quantum-chemistry approaches (including the coupled cluster method) to calculate electronic and nuclear relaxation (hyper)polarizabilities of carbon dioxide, formaldehyde, cis-diazene, and a medium-sized Schiff base. The primary finding of our study is that, among all studied property-oriented basis sets, only the def2-TZVPD and ORP basis sets yield nuclear relaxation (hyper)polarizabilities of small molecules with average absolute errors less than 5.5%. A similar accuracy for the nuclear relaxation (hyper)polarizabilites of the studied systems can also be reached using the aug-cc-pVDZ basis set (5.3%), although for more accurate calculations of vibrational contributions, i.e., average absolute errors less than 1%, the aug-cc-pVTZ basis set is recommended. It was also demonstrated that anharmonic contributions to first and second hyperpolarizabilities of a medium-sized Schiff base are particularly difficult to accurately predict at the correlated level using property-oriented basis sets. For instance, the value of the nuclear relaxation first hyperpolarizability computed at the MP2/def2-TZVPD level of theory is roughly 3 times larger than that determined using the aug-cc-pVTZ basis set. We link the failure of the def2-TZVPD basis set with the difficulties in predicting the first-order field

  19. Effect of deformation and orientation on spin orbit density dependent nuclear potential

    Science.gov (United States)

    Mittal, Rajni; Kumar, Raj; Sharma, Manoj K.

    2017-11-01

    Role of deformation and orientation is investigated on spin-orbit density dependent part VJ of nuclear potential (VN=VP+VJ) obtained within semi-classical Thomas Fermi approach of Skyrme energy density formalism. Calculations are performed for 24-54Si+30Si reactions, with spherical target 30Si and projectiles 24-54Si having prolate and oblate shapes. The quadrupole deformation β2 is varying within range of 0.023 ≤ β2 ≤0.531 for prolate and -0.242 ≤ β2 ≤ -0.592 for oblate projectiles. The spin-orbit dependent potential gets influenced significantly with inclusion of deformation and orientation effect. The spin-orbit barrier and position gets significantly influenced by both the sign and magnitude of β2-deformation. Si-nuclei with β220. The possible role of spin-orbit potential on barrier characteristics such as barrier height, barrier curvature and on the fusion pocket is also probed. In reference to prolate and oblate systems, the angular dependence of spin-orbit potential is further studied on fusion cross-sections.

  20. The Development of Study Orientations and Study Success in Students of Pharmacy

    Science.gov (United States)

    Nieminen, Juha; Lindblom-Ylanne, Sari; Lonka, Kirsti

    2004-01-01

    In research literature, two study orientations have been identified: meaning orientation and reproducing orientation. Few studies have examined how study orientations and conceptions of knowledge (epistemologies) interrelate. Further, longitudinal studies of the development of orientations and of conceptions of knowledge in relation to academic…

  1. Nuclear spectroscopic studies

    Energy Technology Data Exchange (ETDEWEB)

    Bingham, C.R.; Guidry, M.W.; Riedinger, L.L.; Sorensen, S.P.

    1993-02-08

    The Nuclear Physics group at the University of Tennessee, Knoxville is involved in several aspects of heavy-ion physics including both nuclear structure and reaction mechanisms. While our main emphasis is on experimental problems involving heavy-ion accelerators, we have maintained a strong collaboration with several theorists in order to best pursue the physics of our measurements. During the last year we have led several experiments at the Holifield Heavy Ion Research Facility and participated in others at Argonne National Laboratory. Also, we continue to be very active in the collaboration to study ultra-relativistic heavy ion physics utilizing the SPS accelerator at CERN in Geneva, Switzerland and in a RHIC detector R D project. Our experimental work is in four broad areas: (1) the structure of nuclei at high angular momentum, (2) heavy-ion induced transfer reactions, (3) the structure of nuclei far from stability, and (4) ultra-relativistic heavy-ion physics. The results of studies in these particular areas will be described in this document in sections IIA, IIB, IIC, and IID, respectively. Areas (1), (3), and (4) concentrate on the structure of nuclear matter in extreme conditions of rotational motion, imbalance of neutrons and protons, or very high temperature and density. Area (2) pursues the transfer of nucleons to states with high angular momentum, both to learn about their structure and to understand the transfer of particles, energy, and angular momentum in collisions between heavy ions. An important component of our program is the strong emphasis on the theoretical aspects of nuclear structure and reactions.

  2. Nuclear spectroscopic studies

    International Nuclear Information System (INIS)

    Bingham, C.R.; Guidry, M.W.; Riedinger, L.L.; Sorensen, S.P.

    1993-01-01

    The Nuclear Physics group at the University of Tennessee, Knoxville is involved in several aspects of heavy-ion physics including both nuclear structure and reaction mechanisms. While our main emphasis is on experimental problems involving heavy-ion accelerators, we have maintained a strong collaboration with several theorists in order to best pursue the physics of our measurements. During the last year we have led several experiments at the Holifield Heavy Ion Research Facility and participated in others at Argonne National Laboratory. Also, we continue to be very active in the collaboration to study ultra-relativistic heavy ion physics utilizing the SPS accelerator at CERN in Geneva, Switzerland and in a RHIC detector R ampersand D project. Our experimental work is in four broad areas: (1) the structure of nuclei at high angular momentum, (2) heavy-ion induced transfer reactions, (3) the structure of nuclei far from stability, and (4) ultra-relativistic heavy-ion physics. The results of studies in these particular areas will be described in this document in sections IIA, IIB, IIC, and IID, respectively. Areas (1), (3), and (4) concentrate on the structure of nuclear matter in extreme conditions of rotational motion, imbalance of neutrons and protons, or very high temperature and density. Area (2) pursues the transfer of nucleons to states with high angular momentum, both to learn about their structure and to understand the transfer of particles, energy, and angular momentum in collisions between heavy ions. An important component of our program is the strong emphasis on the theoretical aspects of nuclear structure and reactions

  3. Nuclear spectroscopic studies

    International Nuclear Information System (INIS)

    Bingham, C.R.; Guidry, M.W.; Riedinger, L.L.; Sorensen, S.P.

    1988-01-01

    The Nuclear Physics group at the University of Tennessee, Knoxville is involved in several aspects of heavy-ion physics including both nuclear structure and reaction mechanisms. While our main emphasis is on experimental problems involving heavy-ion accelerators, we have maintained a strong collaboration with several theorists in order to best pursue the physics of our measurements. During the last year we have led experiments at the Holifield Heavy Ion Research Facility, the SuperHILAC at Berkeley, and Chalk River Tandem Accelerator. Also, we have joined a collaboration to study ultra-relativistic heavy ion physics and one of our group has spent all of 1987 at CERN to work on the WA80 experiment. Our experimental work is in four broad areas: (1) the structure of nuclei at high angular momentum, (2) heavy-ion induced transfer reactions, (3) the structure of nuclei far from stability, and (4) ultra-relativistic heavy-ion physics. These results will be described in this document in sections 2A, 2B, 2C, and 2D, respectively. Areas (1), (3), and (4) concentrate on the structure of nuclear matter in extreme conditions of rotational motion, imbalance of neutrons and protons or very high temperature and density. Area (2) pursues the transfer of nucleons to states with high angular momentum, both to learn about their structure and to understand the transfer of particles, energy and angular momentum in collisions between heavy ions. An important component of our program is the strong emphasis on the theoretical aspects of nuclear structure and reactions

  4. Nuclear spectroscopic studies

    International Nuclear Information System (INIS)

    Bingham, C.R.; Guidry, M.W.; Riedinger, L.L.; Sorensen, S.P.

    1991-01-01

    The Nuclear Physics group at the University of Tennessee, Knoxville is involved in several aspects of heavy-ion physics including both nuclear structure and reaction mechanisms. While our main emphasis is on experimental problems involving heavy-ion accelerators, we have maintained a strong collaboration with several theorists in order to best pursue the physics of our measurements. During the last year we have led experiments at the Holifield Heavy Ion Research Facility, the SuperHILAC at Berkeley, and Chalk River Tandem Accelerator. Also, we have joined a collaboration to study ultra-relativistic heavy ion physics and one of our group has spent all of 1987 at CERN to work on the WA80 experiment. Our experimental work is in four broad areas: (1) the structure of nuclei at high angular momentum, (2) heavy-ion induced transfer reactions, (3) the structure of nuclei far from stability, and (4) ultra-relativistic heavy-ion physics. These results will be described in this document in sections IIA, IIB, and IID, respectively. Areas (1), (3), and (4) concentrate on the structure of nuclear matter in extreme conditions of rotational motion, imbalance of neutrons and protons, or very high temperature and density. Area (2) pursues the transfer of nucleons to states with high angular momentum, both to learn about their structure and to understand the transfer of particles, energy and angular momentum in collisions between heavy ions. An important component of our program is the strong emphasis on the theoretical aspects of nuclear structure and reactions

  5. Stabilization of the Electron-Nuclear Spin Orientation in Quantum Dots by the Nuclear Quadrupole Interaction

    Science.gov (United States)

    Dzhioev, R. I.; Korenev, V. L.

    2007-07-01

    The nuclear quadrupole interaction eliminates the restrictions imposed by hyperfine interaction on the spin coherence of an electron and nuclei in a quantum dot. The strain-induced nuclear quadrupole interaction suppresses the nuclear spin flip and makes possible the zero-field dynamic nuclear polarization in self-organized InP/InGaP quantum dots. The direction of the effective nuclear magnetic field is fixed in space, thus quenching the magnetic depolarization of the electron spin in the quantum dot. The quadrupole interaction suppresses the zero-field electron spin decoherence also for the case of nonpolarized nuclei. These results provide a new vision of the role of the nuclear quadrupole interaction in nanostructures: it elongates the spin memory of the electron-nuclear system.

  6. The safety of nuclear power plants under the shareholder value orientation - example Northeast Utilities

    International Nuclear Information System (INIS)

    Luhmann, H.J.

    2006-01-01

    Usually the safety of nuclear power plants is regarded as a technical question. Thereby humans only as a part of the man-machine system play a safety-relevant role usually. On this picture, the national regulation of this safety, the 'nuclear supervision' is designed. An innovative investigation of the Yale School of Management has concerned with the incidents around the so-called Millstone reactors in Waterford, Connecticut, and the economic collapse of the regional supplier Northeast Utilities (NU). The change of the corporate culture of the operator of the nuclear power station to a shareholder value orientation has released this 'enterprise disaster'. This investigation permits a first insight into the changed requirements on supervision, which goes beyond the nuclear supervision and which includes the price control in view of this change of the corporate culture

  7. Reflection on the talent structure of knowledge-service oriented nuclear technology library

    International Nuclear Information System (INIS)

    Zhang Xue; Zhang Ruiping

    2010-01-01

    Nuclear technology library is the only authoritative organization in collection of nuclear technology literatures.It has exceptional advantage and a large number of customers with great requirement. With promotion of network and digitization of information resource, new situation is posed before nuclear technology library-transforming from traditional library to knowledge-service oriented library. In order to carry on knowledge service effectively and conveniently, a variety of talents are essential. So establishing a talent team with high quality and complete specialities is the fundamental guarantee. Based on a great deal research and discussion, requirements for establishment of a talent team are put forward in the paper and suggestion are present: 5 basic specialized talents are required in nuclear technology library, including organization and management talent, basic operation talent, search service talent, technology application talent, information development talent. (authors)

  8. Object oriented distributed programming: studies and proposals

    International Nuclear Information System (INIS)

    Guerraoui, Rachid

    1992-01-01

    This thesis contributes to the investigation of the object concept in distributed programming. Henceforth, this programming style has become a reality in the computer science world, since it allows to increase of the availability of applications and to decrease their execution time. Nevertheless, designing a distributed application is a hard task: the various abstraction levels that must be considered hinder the software reusability and maintenance, while errors and concurrent accesses are often sources of executions incoherence. The object concept improves the software modularity, and raises the computing abstraction level. Integrating distribution related aspects into the object model brings up the issues of expressing the concurrency and maintaining the coherency. The investigation of these problems in this thesis has been guided by a major concern for the preservation of the intrinsic properties of object-orientation, and the orthogonality of the solutions given. The main contributions of the thesis are: (i) the classification, regarding modularity, of the different design alternatives for object-oriented concurrent languages; (ii) the evaluation of various transactional mechanisms in object-based concurrent languages, and the design of an atomic asynchronous communication protocol named ACS; (iii) the definition of a transaction-based object-oriented concurrent language called KAROS; (iv) the implementation of a modular framework which allows to combine in a same application, various concurrency control and error recovery mechanisms; (v) the identification of a formal property, named general atomicity, which constitutes a correctness criteria for atomic objects specifications. (author) [fr

  9. Nuclear fuel cycle-oriented actinides separation in China

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Jing; He, Xihong; Wang, Jianchen [Tsinghua Univ., Beijing (China). Inst. of Nuclear and New Energy Technology

    2014-04-01

    In the last decades, the separation of actinides was widely and continuously studied in China. A few kinds of salt-free reductants to adjust Pu and Np valences have been investigated. N,N-dimethylhydroxylamine is a good reductant with high reduction rate constants for the co-reduction of Pu(IV) and Np(VI), and monomethylhydrazine is a simple compound for the individual reduction of Np(VI). Advanced PUREX based on Organic Reductants (APOR) was proposed. Trialkylphosphine oxide (TRPO) with a single functional group was found to possess strong affinity to tri-, tetra- and hexa-valent actinides. TRPO process has been first explored in China for actinides partitioning from high level waste and the good partitioning performance was demonstrated by the hot test. High extraction selectivity for trivalent actinides over lanthanides by dialkyldithiophosphinic acids was originally found in China. A separation process based on purified Cyanex 301 for the separation of Am from lanthanides was presented and successfully tested in a battery of miniature centrifugal contactors. (orig.)

  10. Nuclear medicine technology study guide

    CERN Document Server

    Patel, Dee

    2011-01-01

    Nuclear Medicine Technology Study Guide presents a comprehensive review of nuclear medicine principles and concepts necessary for technologists to pass board examinations. The practice questions and content follow the guidelines of the Nuclear Medicine Technology Certification Board (NMTCB) and American Registry of Radiological Technologists (ARRT), allowing test takers to maximize their success in passing the examinations. The book is organized by sections of increasing difficulty, with over 600 multiple-choice questions covering all areas of nuclear medicine, including radiation safety; radi

  11. Nuclear magnetic moment of As-69 from on-line beta-NMR on oriented nuclei

    Czech Academy of Sciences Publication Activity Database

    Golovko, VV.; Kraev, I.; Severijns, N.; Zákoucký, Dalibor; Vénos, Drahoslav; Herzog, P.; Tramm, C.; Srnka, Dušan; Honusek, Milan; Köster, U.; Delaure, B.; Phalet, T.

    2005-01-01

    Roč. 72, č. 6 (2005), 064316 ISSN 0556-2813 R&D Projects: GA ČR GA202/99/0154; GA ČR GA202/02/0848 Institutional research plan: CEZ:AV0Z1048901 Keywords : ISOLDE-CERN * orientation * facility Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders Impact factor: 3.610, year: 2005

  12. Object-oriented simulator of the dynamics of Embalse nuclear power plant

    International Nuclear Information System (INIS)

    Boroni, Gustavo A.; Cuadrado, M.; Clausse, Alejandro

    2000-01-01

    LUDWIG is an object-oriented simulator of the dynamics of the CANDU Nuclear power plant Embalse Rio Tercero. The tool consists in a numerical plant analyzer by means of a model of the plant dynamics during normal operation, and a graphic environment for configuration and visualization of results. The simulator was validated against plant transients occurred in the plant and recorded in the past. (author)

  13. Waste Oriented Innovation Culture-Transparency-Public Trust Cycle : Success Key for Nuclear Facility Management in Indonesia

    International Nuclear Information System (INIS)

    Susetyo Hario Putero; Haryono B Santosa

    2007-01-01

    Radioactive matter that is a primary material in a nuclear facility, including nuclear power generation, is a part of hazardous materials. Its existence will lead a controversy, although the precise management system for handling it is available. Public sometimes reject the nuclear technology due to the lack of understanding and wrong perception on that technology, especially the radioactive waste treatment. So, strategies should be designed for correcting public perception, until public acceptance on utilization of nuclear technology in Indonesia increase. The innovation development on radioactive waste management was studied by observing and interviewing managements and operators of Japan Atomic Energy Agency (JAEA), Japan. The constructing of concept was based on study result. Based on assumption that the current state of the radioactive waste treatment is suitable and there is serious improvement of technology, therefore systematic and precise oriented corrective efforts of public perception could be done. Transparency, intensive communication, and public participation that show responsible action for emerging mutual trust are basic of strategy that should be developed. High level public acceptance on utilization of nuclear technology is expected to be able for stimulating and supporting sustainable technology innovation culture. (author)

  14. Market Orientation Capabilities: A Study of Learning Processes in Market-Oriented Companies

    OpenAIRE

    Silkoset, Ragnhild

    2009-01-01

    The literature operates with three perspectives on market orientation. These include market orientation as behavior (Kohli and Jaworski 1990; Narver and Slater 1990), market orientation as a unique resource (Hunt and Morgan 1995) and market orientation as a dynamic learning capability (Sinkula 1994; Day 1994b). A company's level of market orientation will vary with regard to the perspectives, including factors affecting a company’s degree of market orientation and the effect...

  15. Nuclear orientation of 9597Nb and 95Zr in ZrFe2

    International Nuclear Information System (INIS)

    Krane, K.S.; Olsen, C.E.; Rosenblum, S.S.; Steyert, W.A.

    1976-01-01

    The angular distribution anisotropies of γ rays were measured following the decays of 95 , 97 Nb and 95 Zr oriented at low temperatures in the ferromagnetic Laves phase compound ZrFe 2 . The magnetic hyperfine field of Nb in ZrFe 2 was deduced to be 9.4+-1.6 T; that of Zr in ZrFe 2 was estimated to be 15+-4 T. The nuclear magnetic moment of 97 Nb was deduced to be μ = (7.5+-1.4) μ/subN/

  16. Task oriented design of robot kinematics using grid method and its application to nuclear power plant

    International Nuclear Information System (INIS)

    Chang, Pyung-Hun; Park, Joon-Young

    2002-01-01

    This paper presents a Task Oriented Design method for robot kinematics based on grid method, widely used in finite difference method and heat transfer/fluid flow analyses. This approach drastically reduces complexities and computational burden due to previous approaches. More specifically, the grid method with a new formulation simplifies the design to a problem of three-design-variable unit grid, which does not require to solve inverse/forward kinematics. The effectiveness of the grid method has been confirmed through a kinematics design of a robot for nuclear power plants. (author)

  17. Study of nuclear material accounting

    International Nuclear Information System (INIS)

    Ruderman, H.

    1977-01-01

    The implications of deliberate diversion of nuclear materials on materials accounting, the validity of the MUF concept to establish assurance concerning the possible diversion of special nuclear materials, and an economic analysis to permit cost comparison of varying the inventory frequency are being studied. An inventory cost model, the statistical hypothesis testing approach, the game theoretic approach, and analysis of generic plants are considered

  18. Symmetry breaking nuclear quadrupole coupling tensor orientation for cesium-133 nuclei located in a mirror plane

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Tae Ho; Kim, Jin Eun [Dept. of Chemistry (BK21 plus) and Research Institute of Natural Science, Gyeongsang National University, Jinju (Korea, Republic of); Lee, Kang Yeol [School of Mechanical Engineering, Korea University, Seoul (Korea, Republic of)

    2016-11-15

    Simultaneous multiple data set fits of all transition peaks of {sup 133}Cs nuclei enabled us to obtain accurate cesium-133 nuclear magnetic resonance (NMR) parameters and Euler angles between the principal axis systems of the chemical shift (CS) and quadrupole coupling (Q) tensors of {sup 133}Cs nuclei in Cs{sub 2}CrO{sub 4} . Although in a previous study of Cs{sub 2}CrO{sub 4} by Power et al. (W. P. Power, S. Mooibroek, R. E. Wasylishen, T. S. Cameron, J. Phys. Chem. 1994, 98, 1552), one central transition was observed for cesium sites 1 and 2 in the {sup 133}Cs NMR spectra and one Euler angle between the CS tensors and Q tensors was obtained as 52° and 7° for cesium sites 1 and 2, respectively, the present single-crystal {sup 133}Cs NMR measurements found two Euler angles (10(2)°, 51.9(1)°, 0°) for site 1 and two central transition peaks for site 2. Three principal components of the CS tensor for Cs1 are oriented along the crystallographic a, b, and c axes, whereas none of the principal components of the Q tensor for Cs1 are oriented along the crystal axes. The principal component V{sub 22} of the Q tensor for Cs1 is tilted 10° from the b axis in the bc plane, and the other two components are not located in the ac plane. Therefore, we have found that the requirement that “the quadrupole coupling tensor for a nucleus located in a mirror plane has one principal axis perpendicular to the mirror plane” cannot be applied to Cs1. On the other hand, δ{sub 11} and V{sub 22} for Cs2 are aligned along the b axis, and the other components of the CS and Q tensors deviate at an angle of 1.4(1)° and 10.1(1)°, respectively, from the a and c axes in the ac plane. A distortion-free powder {sup 133}Cs NMR spectrum of Cs{sub 2}CrO{sub 4} was measured using a solid-state spin echo technique.

  19. Theoretical studies in nuclear reactions and nuclear structure

    International Nuclear Information System (INIS)

    Wallace, S.J.

    1991-05-01

    This report discusses topics in the following areas: Hadronic structure; hadrons in nuclei; hot hadronic matter; relativistic nuclear physics and NN interaction; leptonic emissions from high-Z heavy ion collisions; theoretical studies of heavy ion dynamics; nuclear pre-equilibrium reactions; classical chaotic dynamics and nuclear structure; and, theory of nuclear fission

  20. Advanced orient cycle, for strategic separation, transmutation and utilization of nuclides in the nuclear fuel cycle

    International Nuclear Information System (INIS)

    Ozawa, M.; Fujita, R.; Koyama, S.; Suzuki, T.; Fujii, Y.

    2007-01-01

    Electrolytic extraction (EE) method has been studied as a vital separation tool for new reprocessing process to realize transmutation and utilization of the specific fission products including LLFP * (e.g., Tc * , Ru, Rh, Pd * , Se * and Te * , etc) in the spent nuclear fuel. In an employed EE process, Pd 2 + cation itself would not only be easily (>99%) deposited from various nitric acid solutions, but enhance also the deposition of co-existing RuNO 3 + and ReO 4 - by acting as a catalyst (as Pd a datom). Such a catalytic electrolytic extraction (i.e., CEE) method was also applicable in the case of 9 9TcO 4 - deposition as well. Addition of Pd 2 + caused either to change the dendritic metal deposition form or to improve electrochemical property of deposits. The RMFP deposit, especially quaternary-, Pd-Ru-Rh-Re, deposits on the Pt electrode obtained by the CEE method were rather spherical in shape, seemed to be electrochemically agglomerated by nano particles. The deposits were stable and showed electrochemically nobler initial hydrogen evolution potential (φ H int.). Also in the given potential of -1.25 V (vs. Ag/AgCl), the quaternary-, Pd-Ru-Rh-Re, deposit Pt electrode suggested the highest cathodic current corresponding to the hydrogen generation reaction. Namely, those catalytic activities were ca. twice superior to that of the Pt electrode in alkaline solution. The sea water is a possible resource for hydrogen production in future. In the course of sea water electrolysis, disturbance due to Ca(OH) 2 and Mg(OH) 2 precipitation was inevitable, but the cathodic current of the quaternary deposit of RMFP was the highest, the same as to that of Pt electrode in the alkaline water. Therefore, RMFP has a potential to alternate with Pt catalyst. The electrochemical property of Re and 9 9Tc, as for alternative element to Re, are under investigation with a special interest of this direction of utilization. The renovative reprocessing flow sheet by tertiary pyridine resin

  1. Theoretical studies in nuclear physics

    International Nuclear Information System (INIS)

    Landau, R.H.; Madsen, V.A.

    1991-01-01

    This report discusses research in nuclear theory in the following areas: Isospin effects and charge exchange; inelastic and charge exchange scattering; momentum space proton scattering; pion scattering from nuclei; and antiproton studies. 14 refs

  2. Case Study Research: Foundations and Methodological Orientations

    Directory of Open Access Journals (Sweden)

    Helena Harrison

    2017-01-01

    Full Text Available Over the last forty years, case study research has undergone substantial methodological development. This evolution has resulted in a pragmatic, flexible research approach, capable of providing comprehensive in-depth understanding of a diverse range of issues across a number of disciplines. Change and progress have stemmed from parallel influences of historical transformations in approaches to research and individual researcher's preferences, perspectives, and interpretations of this design. Researchers who have contributed to the development of case study research come from diverse disciplines with different philosophical perspectives, resulting in a variety of definitions and approaches. For the researcher new to using case study, such variety can create a confusing platform for its application. In this article, we explore the evolution of case study research, discuss methodological variations, and summarize key elements with the aim of providing guidance on the available options for researchers wanting to use case study in their work. URN: http://nbn-resolving.de/urn:nbn:de:0114-fqs1701195

  3. Nuclear materials management storage study

    International Nuclear Information System (INIS)

    Becker, G.W. Jr.

    1994-02-01

    The Office of Weapons and Materials Planning (DP-27) requested the Planning Support Group (PSG) at the Savannah River Site to help coordinate a Departmental complex-wide nuclear materials storage study. This study will support the development of management strategies and plans until Defense Programs' Complex 21 is operational by DOE organizations that have direct interest/concerns about or responsibilities for nuclear material storage. They include the Materials Planning Division (DP-273) of DP-27, the Office of the Deputy Assistant Secretary for Facilities (DP-60), the Office of Weapons Complex Reconfiguration (DP-40), and other program areas, including Environmental Restoration and Waste Management (EM). To facilitate data collection, a questionnaire was developed and issued to nuclear materials custodian sites soliciting information on nuclear materials characteristics, storage plans, issues, etc. Sites were asked to functionally group materials identified in DOE Order 5660.1A (Management of Nuclear Materials) based on common physical and chemical characteristics and common material management strategies and to relate these groupings to Nuclear Materials Management Safeguards and Security (NMMSS) records. A database was constructed using 843 storage records from 70 responding sites. The database and an initial report summarizing storage issues were issued to participating Field Offices and DP-27 for comment. This report presents the background for the Storage Study and an initial, unclassified summary of storage issues and concerns identified by the sites

  4. Service-oriented enterprise modelling and analysis: a case study

    NARCIS (Netherlands)

    Iacob, Maria Eugenia; Jonkers, H.; Lankhorst, M.M.; Steen, M.W.A.

    2007-01-01

    In order to validate the concepts and techniques for service-oriented enterprise architecture modelling, developed in the ArchiMate project (Lankhorst, et al., 2005), we have conducted a number of case studies. This paper describes one of these case studies, conducted at the Dutch Tax and Customs

  5. A Study on the Nuclear Foreign Policy

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Byung Wook; Lee, H. M.; Ko, H. S.; Ryu, J. S.; Oh, K. B.; Yang, M. H.; Lee, K. S

    2007-12-15

    This study approaches the international trends related to nuclear non-proliferation in four aspects. First, this study analyzes the trend of the international nuclear non-proliferation regime, which includes the Treaty on the Non-proliferation of Nuclear Weapons (NPT), the international nuclear export control regime and proposals for assurance of nuclear fuel supply. Second, this study analyzes the trend of international nuclear organizations, which includes the International Atomic Energy Agency (IAEA), a central body of development of nuclear technology and international nuclear diplomacy, and the Organization for Economic Co-operation and Development/Nuclear Energy Agency (OECD/NEA), a intergovernmental organization to consist of a group of nuclear advanced countries. Third, this study analyzes the trends of the U.S.'s nuclear foreign policies, particularly nuclear non-proliferation. Fourth, this study analyzes the nuclear issues of North Korea and Iran as they cause serious concerns to a international society.

  6. A Study on the Nuclear Foreign Policy

    International Nuclear Information System (INIS)

    Lee, Byung Wook; Lee, H. M.; Ko, H. S.; Ryu, J. S.; Oh, K. B.; Yang, M. H.; Lee, K. S.

    2007-12-01

    This study approaches the international trends related to nuclear non-proliferation in four aspects. First, this study analyzes the trend of the international nuclear non-proliferation regime, which includes the Treaty on the Non-proliferation of Nuclear Weapons (NPT), the international nuclear export control regime and proposals for assurance of nuclear fuel supply. Second, this study analyzes the trend of international nuclear organizations, which includes the International Atomic Energy Agency (IAEA), a central body of development of nuclear technology and international nuclear diplomacy, and the Organization for Economic Co-operation and Development/Nuclear Energy Agency (OECD/NEA), a intergovernmental organization to consist of a group of nuclear advanced countries. Third, this study analyzes the trends of the U.S.'s nuclear foreign policies, particularly nuclear non-proliferation. Fourth, this study analyzes the nuclear issues of North Korea and Iran as they cause serious concerns to a international society

  7. A study on the nuclear foreign policy

    International Nuclear Information System (INIS)

    Lee, Byungwook; Lee, H. M.; Ko, H. S.; Ryu, J. S.; Noh, B. C.

    2008-12-01

    This study addresses four arenas to effectively assist national nuclear foreign policies under international nuclear nonproliferation regimes and organizations. Firstly, this study analyzes the trends of the international nuclear non-proliferation regime, which includes the Treaty on the Non-proliferation of Nuclear Weapons (NPT), the international nuclear export control regime, and proposals for assurance of nuclear fuel supply. Secondly, this study analyzes the trends of international nuclear organizations, which include the IAEA as a central body of international nuclear diplomacy and technical cooperation and the OECD/NEA as a intergovernmental organization to consist of nuclear advanced countries. Thirdly, this study predicts the nuclear foreign policy of Obama Administration and reviews U. S.-India nuclear cooperation. Lastly, this study analyzes the nuclear issues of North Korea and current issues for regulation of nuclear materials.

  8. Nuclear orientation and NMR/ON of sup(205,207)Po

    International Nuclear Information System (INIS)

    Herzog, P.; Walitzki, H.; Freitag, K.; Hildebrand, H.; Schloesser, K.

    1983-01-01

    sup(205,207)Po have been implanted with an isotope separator on-line into cold host matrices of Fe, Ni, Zn and Be. Nuclear magnetic resonance of oriented 207 Po has been observed in Fe and Ni, of 205 Po in Fe. From the dependence of the resonance frequency on external magnetic field the g-factor of 207 Po was derived. Using this value the magnetic hyperfine fields of Po in Fe and Ni were obtained. From the temperature dependence of the anisotropies of #betta#-lines in the decay of sup(205,207)Po the multipole mixing of several transitions was derived. The electric interaction frequencies #betta#sub(Q)=eQVsub(zz)/h in the hosts Zn and Be were measured. (orig./WL)

  9. Assistance system for nuclear data evaluation in an object-oriented environment

    International Nuclear Information System (INIS)

    Iwasaki, S.; Odano, N.; Sugiyama, K.

    1994-01-01

    An object-oriented framework for an assistance system for neutron nuclear data evaluation has been proposed, and an assisting system for theoretical model fitting to the experimental data has been developed. In the model fitting procedure, we employed a method based on the general least-squares technique. Almost all things appearing in the process were easily and naturally modeled by objects in this environment. The objects can also be connected by a set of rules either with other objects, with the existing or newly developed external processes and with data bases. In total twelve sub-processes were supported by each knowledge base. As an example of the fitting procedure the case of 59 Co as the target nuclide is presented. (Author)

  10. Future Orientation, School Contexts, and Problem Behaviors: A Multilevel Study

    Science.gov (United States)

    Chen, Pan; Vazsonyi, Alexander T.

    2013-01-01

    The association between future orientation and problem behaviors has received extensive empirical attention; however, previous work has not considered school contextual influences on this link. Using a sample of N = 9,163 9th to 12th graders (51.0% females) from N = 85 high schools of the National Longitudinal Study of Adolescent Health, the…

  11. Study of molecular orientations in Langmuir-Blodgett films

    International Nuclear Information System (INIS)

    Lesieur, Pierre

    1986-01-01

    This research thesis reports the characterization of Langmuir-Blodgett films by electric paramagnetic resonance and by resonant Raman diffusion in polarized light. Films are made of mixed or alternated multi-layers of amphiphilic porphyrins and docosenoic acid. The author more particularly studied the orientation of porphyrinic macro-cycles with respect to the layer substrate [fr

  12. Nuclear material shipment study

    International Nuclear Information System (INIS)

    Shepherd, E.W.

    1980-01-01

    The Radioactive Material Transport Assessment Study is expected to provide a flexible set of capabilities and useful information to the public, industry and government users by using a system design to assure obtaining high quality data from selected industry sources at acceptable cost. It is expected that the shipping record approach coupled with an efficient sampling strategy will accomplish this. The study is also designed to yield analytical capabilities and statistical output to serve public, industry and government users. The information provided by the study will make a valuable contribution to environmental and accident risk assessment, policy development and operational planning and management activities

  13. Nuclear fuel cycle studies

    International Nuclear Information System (INIS)

    Anon.

    1980-01-01

    For the metal-matrix encapsulation of radioactive waste, brittle-fracture, leach-rate, and migration studies are being conducted. For fuel reprocessing, annular and centrifugal contactors are being tested and modeled. For the LWBR proof-of-breeding project, the full-scale shear and the prototype dissolver were procured and tested. 5 figures

  14. Nuclear reaction studies

    International Nuclear Information System (INIS)

    Alexander, J.M.; Lacey, R.A.

    1994-01-01

    Research focused on the statistical and dynamical properties of ''hot'' nuclei formed in symmetric heavy-ion reactions. Theses included ''flow'' measurements and the mechanism for multifragment disassembly. Model calculations are being performed for the reactions C+C, Ne+Al, Ar+Sc, Kr+Nb, and Xe+La. It is planned to study 40 Ar reactions from 27 to 115 MeV/nucleon. 2 figs., 41 refs

  15. Studying the emerging nuclear suppliers

    International Nuclear Information System (INIS)

    Rydell, R.F.

    1990-01-01

    None of these events---nor any of the many others that are cited in the case studies of this book---can be singled out as heralding a revolutionary transformation of the global nuclear marketplace. The cumulative effect of such developments, however, may well be the emergence of a market in the year 2000 that is far less concentrated than today's market for nuclear reactors and fuel cycle technology. If this gradual structural transformation is accompanied by the entry into the market of new buyers and sellers that do not accept the Nuclear Non-Proliferation Treaty (NPT), safeguards administered by the IAEA, or other international norms directed at preventing the spread of nuclear weapon capabilities, the result may indeed have revolutionary dimensions for the business, diplomacy, and research of nuclear energy. A similar outcome could arise even f these norms are widely accepted but are not matched by an increase in the resources available to national governments and key international agencies that implement these norms. This paper identifies some of the pitfalls that researchers often encounter in researching the emerging suppliers and will outline some basic ground rules to guide the collection and interpretation of empirical evidence on supplier behavior

  16. Advanced nuclear systems. Review study

    International Nuclear Information System (INIS)

    Liebert, Wolfgang; Glaser, Alexander; Pistner, Christoph; Baehr, Roland; Hahn, Lothar

    1999-04-01

    The task of this review study is to from provide an overview of the developments in the field of the various advanced nuclear systems, and to create the basis for more comprehensive studies of technology assessment. In an overview the concepts for advanced nuclear systems pursued worldwide are subdivided into eight subgroups. A coarse examination raster (set pattern) is developed to enable a detailed examination of the selected systems. In addition to a focus on enhanced safety features, further aspects are also taken into consideration, like the lowering of the proliferation risk, the enhancement of the economic competitiveness of the facilities and new usage possibilities (for instance concerning the relaxation of the waste disposal problem or the usage of alternative fuels to uranium). The question about the expected time span for realization and the discussion about the obstacles on the way to a commercially usable reactor also play a substantial role as well as disposal requirements as far as they can be presently recognized. In the central chapter of this study, the documentation of the representatively selected concepts is evaluated as well as existing technology assessment studies and expert opinions. In a few cases where this appears to be necessary, according technical literature, further policy advisory reports, expert statements as well as other relevant sources are taken into account. Contradictions, different assessments and dissents in the literature as well as a few unsettled questions are thus indicated. The potential of advanced nuclear systems with respect to economical and societal as well as environmental objectives cannot exclusively be measured by the corresponding intrinsic or in comparison remarkable technical improvements. The acceptability of novel or improved systems in nuclear technology will have to be judged by their convincing solutions for the crucial questions of safety, nuclear waste and risk of proliferation of nuclear weapons

  17. Personality Traits, Sexual Problems, and Sexual Orientation: An Empirical Study.

    Science.gov (United States)

    Peixoto, Maria Manuela; Nobre, Pedro

    2016-01-01

    Personality traits, namely neuroticism, have been suggested as vulnerability factors for the development and maintenance of sexual dysfunction in heterosexual samples. However, no evidence was found regarding homosexual samples. This study aimed to analyze the differences on personality traits between heterosexual and homosexual men and women with and without sexual problems. Participants were 285 individuals (142 men, 143 women) who completed a web-based survey. Participants answered the NEO Five-Factor Inventory, the Brief Symptomatology Inventory, and questions regarding sexual problems. The groups of men and women with and without sexual problems were matched for sociodemographic variables. A 2 (Group) × 2 (Sexual Orientation) multivariate analysis of covariance was conducted separately for each gender. Results indicated a significant main effect for group and for sexual orientation in male and female samples. Men with sexual problems scored higher on neuroticism, whereas women with sexual problems scored higher on neuroticism and lower on extraversion when compared with healthy controls, regardless of sexual orientation. In addition, gay men scored higher on neuroticism and lesbian women scored higher on conscientiousness compared with the heterosexual groups. The present findings emphasize the central role of neuroticism on sexual problems in both men and women regardless of sexual orientation.

  18. Chemistry aided nuclear physics studies

    NARCIS (Netherlands)

    Even, Julia

    2016-01-01

    Studies of the superheavy elements bring several challenges through low production yields, short half-lives, and high background rates. This paper describes the possibilities of chemical separations as techniques to overcome the background problematic and to investigate the nuclear properties of the

  19. Clear-cut and practice-oriented organization - the connecting link between man and nuclear power plant operation requirements

    International Nuclear Information System (INIS)

    Steiner, E.K.

    1994-01-01

    Practice-oriented plant organization takes into account the human spheres of task and responsibility, training and qualification, communication and exchange of experience, setting of targets, management and control as well as motivation and loyalty. It constitutes the basis for meeting the demands on a safe and reliable nuclear power plant operation. This is demonstrated by the organization at the Grafenrheinfeld NPP. (DG) [de

  20. Preliminary Study on the Revision of Nuclear Safety Policy Statement

    International Nuclear Information System (INIS)

    Lee, Y. E.; Lee, S. H.; Chang, H. S.; Choi, K. S.; Jung, S. J.

    2011-01-01

    Nuclear safety policy in Korea is currently declared in the Nuclear Safety Charter as the highest tier document and safety principles and directions are announced in the Nuclear Safety Policy Statement. As the circumstances affecting on the nuclear safety policy change, it needs to revise the Statement. This study aims to develop the revised Nuclear Safety Policy Statement to declare that securing safety is a prerequisite to the utilization of nuclear energy, and that all workers in nuclear industry and regulatory body must adhere to the principle of priority to safety. As a result, two different types of revision are being prepared as of August. One is based on the spirit of Nuclear Safety Charter as well as the direction of future-oriented safety policies including the changes in the environment after declaration of the Statement. The other is to declare the fundamental safety objective and safety principles as the top philosophy of national nuclear safety policy by adopting the '10 Safety Principles in IAEA Safety Fundamental' instead of the current Charter. Both versions of revision are subject to further in-depth discussion. However once the revision is finalized and declared, it would be useful to accomplish effectively the organizational responsibilities and to enhance the public confidence in nuclear safety by performing the regulatory activities in a planned and systematic manner and promulgating the government's dedication to priority to safety

  1. Progress report on nuclear structure studies

    International Nuclear Information System (INIS)

    Walters, W.B.

    1991-01-01

    In this report, new results are reported for the decay and nuclear orientation of 114,116 I and 114 Sb as well as data for the structure of daughter nuclides 114,116 Te. New results for IBM-2 calculations for the structure of 126 Xe are also reported. 6 figs., 5 tabs

  2. Brain-oriented care in the NICU: a case study.

    Science.gov (United States)

    Bader, Lisa

    2014-01-01

    With the advances of technology and treatment in the field of neonatal care, researchers can now study how the brains of preterm infants are different from full-term infants. The differences are significant, and the outcomes are poor overall for premature infants as a whole. Caregivers at the bedside must know that every interaction with the preterm infant affects brain development-it is critical to the developmental outcome of the infant. The idea of neuroprotection is not new to the medical field but is a fairly new idea to the NICU. Neuroprotection encompasses all interventions that promote normal development of the brain. The concept of brain-oriented care is a necessary extension of developmental care in the NICU. By following the journey of 26-week preterm twin infants through a case study, one can better understand the necessity of brain-oriented care at the bedside.

  3. US NDC Modernization: Service Oriented Architecture Study Status

    Energy Technology Data Exchange (ETDEWEB)

    Hamlet, Benjamin R. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Encarnacao, Andre Villanova [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Harris, James M. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Young, Christopher J. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2014-12-01

    This report is a progress update on the USNDC Modernization Service Oriented Architecture (SOA) study describing results from Inception Iteration 1, which occurred between October 2012 and March 2013. The goals during this phase are 1) discovering components of the system that have potential service implementations, 2) identifying applicable SOA patterns for data access, service interfaces, and service orchestration/choreography, and 3) understanding performance tradeoffs for various SOA patterns

  4. Nuclear spectroscopic studies: Progress report

    International Nuclear Information System (INIS)

    Bingham, C.R.; Guidry, M.W.; Riedinger, L.L.; Sorensen, S.P.

    1989-01-01

    The Nuclear Physics Group at the University of Tennessee, Knoxville (UTK) is involved in several aspects of heavy-ion physics including both nuclear structure and reaction mechanisms. While our main emphasis is on experimental problems involving heavy-ion accelerators, we have maintained a strong collaboration with several theorists in order to best pursue the physics of our measurements. During the last year we have led experiments at the Holifield Heavy Ion Research Facility (HHIRF) and the Niels Bohr Institute Tandem Accelerator. Also, we are active in a collaboration (WA80) to study ultra-relativistic heavy ion physics utilizing the SPS accelerator at CERN in Geneva, Switzerland. Our experimental work is four broad areas: (1) the structure of nuclei at high angular momentum, (2) heavy-ion induced transfer reactions, (3) the structure of nuclei far from stability, and (4) ultra-relativistic heavy-ion physics. These results will be described in this document. Areas (1), (3), and (4) concentrate on the structure of nuclear matter in extreme conditions of rotational motion, imbalance of neutrons and protons, or very high temperature and density. Area (2) pursues the transfer of nucleons to states with high angular momentum, both to learn about their structure and to understand the transfer of particles, energy, and angular momentum in collisions between heavy ions. An important component of our program is the strong emphasis on the theoretical aspects of nuclear structure and reactions

  5. Interventional studies in nuclear medicine

    International Nuclear Information System (INIS)

    Saha, G.B.; Swanson, D.P.; Hladik, W.B. III

    1987-01-01

    Pharmacological interventions in nuclear medicine studies have been in practice for a long time. The triiodothyronine (T/sub 3/) suppression, Thyroid-stimulating hormone (TSH) stimulation, and perchlorate discharge tests are common examples of well-established diagnostic interventional studies. In recent years, pharmacologic and physiologic interventions in other nuclear medicine procedures have drawn considerable attention. The primary purpose of these interventions is to augment, complement or, more often, differentiate the information obtained from conventional nuclear medicine diagnostic studies. Pharmacologic interventions involve the administration of a specific drug before, during, or after the administration of radiopharmaceutical for a given study. The change in information due to intervention of the drug offers clues to differentiating various disease conditions. These changes can be brought about by physiologic interventions also, e.g., exercise in radionuclide ventriculography. In the latter interventions, the physiologic function of an organ is enhanced or decreased by physical maneuvers, and the changes observed can be used to differentiate various disease conditions

  6. A Study on the Nuclear Technology Policy

    International Nuclear Information System (INIS)

    Oh, K. B.; Lee, K. S.; Chung, W. S.; Lee, T. J.; Yun, S. W.; Jeong, I.; Lee, J. H.

    2007-02-01

    The objective of the study was to make policy-proposals for enhancing the effectiveness and efficiency of national nuclear technology R and D programs. To do this, environmental changes of international nuclear energy policy and trends of nuclear technology development were surveyed and analyzed. This Study analyzed trends of nuclear technology policies and developed the nuclear energy R and D innovation strategy in a viewpoint of analyzing the changes in the global policy environment associated with nuclear technology development and development of national nuclear R and D strategy

  7. Status of nuclear transmutation study

    International Nuclear Information System (INIS)

    Takizuka, Takakazu

    1999-01-01

    JAERI is carrying out R and Ds on partitioning and transmutation under the OMEGA Program. The R and Ds include the design study of accelerator-driven transmutation systems and the development of transmutation experimental facilities. Accelerator-driven systems have received much interests due to their potential role as dedicated transmuters in the nuclear fuel cycle for minimizing long-lived waste. Principles of accelerator-driven system, its history, JAERI proposed system concepts, and the experimental program are overviewed. (author)

  8. An outcome study of gestalt-oriented growth workshops.

    Science.gov (United States)

    Leung, Grace Suk Man; Leung, Timothy Yuk Ki; Ng, Monica Lai Tuen

    2013-01-01

    Compared to other intervention modalities, there are relatively few outcome studies of gestalt therapy. This study aimed to address this gap by evaluating the therapeutic effects of four gestalt-oriented group workshops designed to enhance well-being in professionals trained as social workers, counselors, and psychologists. The results of this preliminary, uncontrolled study indicated that the 55 participants had better emotional well-being and experienced a heightened sense of hope following the workshops. The factors leading to these positive outcomes are discussed.

  9. Nuclear magnetic moment of 69As from on-line β-NMR on oriented nuclei

    International Nuclear Information System (INIS)

    Golovko, V.V.; Kraev, I.S.; Phalet, T.; Severijns, N.; Delaure, B.; Beck, M.; Kozlov, V.Yu.; Lindroth, A.; Coeck, S.; Zakoucky, D.; Venos, D.; Srnka, D.; Honusek, M.; Herzog, P.; Tramm, C.; Koester, U.

    2005-01-01

    A precise value for the magnetic moment of the 69 As 5/2 - ground state has been obtained from nuclear magnetic resonance on oriented nuclei (NMR/ON) using the NICOLE 3 He- 4 He dilution refrigerator setup at ISOLDE/CERN. The NMR/ON signal was observed by monitoring the anisotropy of the 69 As β particles. The center frequency ν[B ext =0.0994(10)T]=169.98(9) MHz corresponds to μ[ 69 As]=+1.6229(16)μ N . This result differs considerably from the πf 5/2 single-particle value obtained with g factors for a free proton but is in reasonable agreement with the value obtained with effective g factors and with values from a core polarization calculation and from calculations in the framework of the interacting boson-fermion model. Assuming a single exponential spin-lattice relaxation behavior a relaxation time T 1 ' =10(25) s was observed for 69 AsFe -bar at a temperature of about 20 mK in a magnetic field B=0.1 T

  10. Goal-oriented functional tree structure for nuclear power plant emergency preparedness

    International Nuclear Information System (INIS)

    Calabrese, R.V.; Roush, M.L.

    1987-01-01

    Guidelines for development and implementation of emergency response plans do not provide the planner/implementer with an adequate overview of the functions to be achieved or a measure of their relative importance. To provide a framework in which this importance can be recognized, understood and quantified, a logical goal oriented tree structure has been developed which integrates and gives a clear visual representation of the functions required to meet the emergency preparedness objective. The tree considers a spectrum of both high and low probability events which may require mitigation both onsite and offsite. The ultimate objective: to Minimize the Ill Effects of a Nuclear Power Plant Incident is satisfied by functions concerned with prevention and mitigation of human injury and property damage. A complete and detailed structure which specifies the subfunctions and success paths which satisfy these functions has been developed. Institutional activities such as planning, training, procedure development, monitoring and decision making do not enter the tree directly. Instead, the logic structure defines the extent to which these activities must be considered and the information systems and decision models required for successful implementation of the plan. The top structure of the tree is presented and a few branches are considered in detail. The impact of institutional activities, information systems, etc. is discussed. Tree quantification is considered

  11. Effect of orientation on deformation behavior of Fe nanowires: A molecular dynamics study

    Science.gov (United States)

    Sainath, G.; Srinivasan, V. S.; Choudhary, B. K.; Mathew, M. D.; Jayakumar, T.

    2014-04-01

    Molecular dynamics simulations have been carried out to study the effect of crystal orientation on tensile deformation behaviour of single crystal BCC Fe nanowires at 10 K. Two nanowires with an initial orientation of /{100} and /{111} have been chosen for this study. The simulation results show that the deformation mechanisms varied with crystal orientation. The nanowire with an initial orientation of /{100} deforms predominantly by twinning mechanism, whereas the nanowire oriented in /{111}, deforms by dislocation plasticity. In addition, the single crystal oriented in /{111} shows higher strength and elastic modulus than /{100} oriented nanowire.

  12. Nuclear spectroscopic studies. Progress report

    Energy Technology Data Exchange (ETDEWEB)

    Bingham, C.R.; Guidry, M.W.; Riedinger, L.L.; Sorensen, S.P.

    1993-02-08

    The Nuclear Physics group at the University of Tennessee, Knoxville is involved in several aspects of heavy-ion physics including both nuclear structure and reaction mechanisms. While our main emphasis is on experimental problems involving heavy-ion accelerators, we have maintained a strong collaboration with several theorists in order to best pursue the physics of our measurements. During the last year we have led several experiments at the Holifield Heavy Ion Research Facility and participated in others at Argonne National Laboratory. Also, we continue to be very active in the collaboration to study ultra-relativistic heavy ion physics utilizing the SPS accelerator at CERN in Geneva, Switzerland and in a RHIC detector R&D project. Our experimental work is in four broad areas: (1) the structure of nuclei at high angular momentum, (2) heavy-ion induced transfer reactions, (3) the structure of nuclei far from stability, and (4) ultra-relativistic heavy-ion physics. The results of studies in these particular areas will be described in this document in sections IIA, IIB, IIC, and IID, respectively. Areas (1), (3), and (4) concentrate on the structure of nuclear matter in extreme conditions of rotational motion, imbalance of neutrons and protons, or very high temperature and density. Area (2) pursues the transfer of nucleons to states with high angular momentum, both to learn about their structure and to understand the transfer of particles, energy, and angular momentum in collisions between heavy ions. An important component of our program is the strong emphasis on the theoretical aspects of nuclear structure and reactions.

  13. Theoretical studies in nuclear reactions and nuclear structure. Progress report

    Energy Technology Data Exchange (ETDEWEB)

    1992-05-01

    Research in the Maryland Nuclear Theory Group focusses on problems in four basic areas of current relevance. Hadrons in nuclear matter; the structure of hadrons; relativistic nuclear physics and heavy ion dynamics and related processes. The section on hadrons in nuclear matter groups together research items which are aimed at exploring ways in which the properties of nucleons and the mesons which play a role in the nuclear force are modified in the nuclear medium. A very interesting result has been the finding that QCD sum rules supply a new insight into the decrease of the nucleon`s mass in the nuclear medium. The quark condensate, which characterizes spontaneous chiral symmetry breaking of the late QCD vacuum, decreases in nuclear matter and this is responsible for the decrease of the nucleon`s mass. The section on the structure of hadrons contains progress reports on our research aimed at understanding the structure of the nucleon. Widely different approaches are being studied, e.g., lattice gauge calculations, QCD sum rules, quark-meson models with confinement and other hedgehog models. A major goal of this type of research is to develop appropriate links between nuclear physics and QCD. The section on relativistic nuclear physics represents our continuing interest in developing an appropriate relativistic framework for nuclear dynamics. A Lorentz-invariant description of the nuclear force suggests a similar decrease of the nucleon`s mass in the nuclear medium as has been found from QCD sum rules. Work in progress extends previous successes in elastic scattering to inelastic scattering of protons by nuclei. The section on heavy ion dynamics and related processes reports on research into the e{sup +}e{sup {minus}} problem and heavy ion dynamics.

  14. Theoretical studies in nuclear reactions and nuclear structure

    Energy Technology Data Exchange (ETDEWEB)

    1992-05-01

    Research in the Maryland Nuclear Theory Group focusses on problems in four basic areas of current relevance. Hadrons in nuclear matter; the structure of hadrons; relativistic nuclear physics and heavy ion dynamics and related processes. The section on hadrons in nuclear matter groups together research items which are aimed at exploring ways in which the properties of nucleons and the mesons which play a role in the nuclear force are modified in the nuclear medium. A very interesting result has been the finding that QCD sum rules supply a new insight into the decrease of the nucleon's mass in the nuclear medium. The quark condensate, which characterizes spontaneous chiral symmetry breaking of the late QCD vacuum, decreases in nuclear matter and this is responsible for the decrease of the nucleon's mass. The section on the structure of hadrons contains progress reports on our research aimed at understanding the structure of the nucleon. Widely different approaches are being studied, e.g., lattice gauge calculations, QCD sum rules, quark-meson models with confinement and other hedgehog models. A major goal of this type of research is to develop appropriate links between nuclear physics and QCD. The section on relativistic nuclear physics represents our continuing interest in developing an appropriate relativistic framework for nuclear dynamics. A Lorentz-invariant description of the nuclear force suggests a similar decrease of the nucleon's mass in the nuclear medium as has been found from QCD sum rules. Work in progress extends previous successes in elastic scattering to inelastic scattering of protons by nuclei. The section on heavy ion dynamics and related processes reports on research into the e{sup +}e{sup {minus}} problem and heavy ion dynamics.

  15. Theoretical studies in nuclear reactions and nuclear structure

    International Nuclear Information System (INIS)

    1992-05-01

    Research in the Maryland Nuclear Theory Group focusses on problems in four basic areas of current relevance. Hadrons in nuclear matter; the structure of hadrons; relativistic nuclear physics and heavy ion dynamics and related processes. The section on hadrons in nuclear matter groups together research items which are aimed at exploring ways in which the properties of nucleons and the mesons which play a role in the nuclear force are modified in the nuclear medium. A very interesting result has been the finding that QCD sum rules supply a new insight into the decrease of the nucleon's mass in the nuclear medium. The quark condensate, which characterizes spontaneous chiral symmetry breaking of the late QCD vacuum, decreases in nuclear matter and this is responsible for the decrease of the nucleon's mass. The section on the structure of hadrons contains progress reports on our research aimed at understanding the structure of the nucleon. Widely different approaches are being studied, e.g., lattice gauge calculations, QCD sum rules, quark-meson models with confinement and other hedgehog models. A major goal of this type of research is to develop appropriate links between nuclear physics and QCD. The section on relativistic nuclear physics represents our continuing interest in developing an appropriate relativistic framework for nuclear dynamics. A Lorentz-invariant description of the nuclear force suggests a similar decrease of the nucleon's mass in the nuclear medium as has been found from QCD sum rules. Work in progress extends previous successes in elastic scattering to inelastic scattering of protons by nuclei. The section on heavy ion dynamics and related processes reports on research into the e + e - problem and heavy ion dynamics

  16. A model for environmental scanning oriented for the strategic planning of the Brazilian Nuclear Energy Commission (CNEN)

    International Nuclear Information System (INIS)

    Braga, Fabiane dos Reis

    1997-01-01

    Presently, all the organizations involved with nuclear activities must be one step ahead of what happens in the specific activity areas in order to avoid surprises, to guarantee their activity continuity and the objective extents, and taking into account the external environment influence exercised by the organization on their activities. So, it is necessary a continuous follow up of their transformations. This paper aims to structure a model of the environmental monitoring system oriented to the strategic planning of the Brazilian Nuclear Energy Commission, as function of that new informational needs viewing the fulfilment of that observed gap. (author)

  17. Orienting attention modulates pain perception: an ERP study.

    Directory of Open Access Journals (Sweden)

    Sam C C Chan

    Full Text Available INTRODUCTION: Research has shown that people with chronic pain have difficulty directing their attention away from pain. A mental strategy that incorporates focused attention and distraction has been found to modulate the perception of pain intensity. That strategy involves placing attention on the nociceptive stimulus felt and shifting attention to a self-generated sub-nociceptive image and rehearsing it. Event-related potential was used to study the possible processes associated with the focus-then-orient strategy. METHODS: Eighteen pain-free participants received different levels of 50-ms nociceptive stimulations elicited by electric shocks at the right lateral malleolus (ankle. In perception trials, participants maintained the perceived nociceptive stimulus in working memory for 3,000 ms. In imagery trials, participants mentally generated and maintained the corresponding sub-nociceptive image they had learned previously. After both types of trials, participants evaluated the pain intensity of the incoming stimulus by recalling the feeling of the nociceptive stimulation at the beginning of the trial. RESULTS: Shifting attention from the incoming nociceptive to a self-generated sub-nociceptive image elicited central P2 and centro-parietal P3 waves, which were found to correlate with proportional scores on the Stroop Test. They were followed by a frontal N400 and a parietal P600, denoting generation of sub-nociceptive images in working memory. The voltages elicited in these potentials correlated moderately with attenuation of the pain ratings of the recalled nociceptive stimulations. CONCLUSIONS: Focus-and-orient attention across nociceptive and sub-nociceptive images appears to be related to response inhibition. Mental rehearsal of the sub-nociceptive images was found to modulate the perception of the nociceptive sensation felt prior to the imagery. Such modulation seems to be mediated by generating and maintaining sub-nociceptive images in

  18. Orienting Attention Modulates Pain Perception: An ERP Study

    Science.gov (United States)

    Chan, Sam C. C.; Chan, Chetwyn C. H.; Kwan, Anne S. K.; Ting, Kin-hung; Chui, Tak-yi

    2012-01-01

    Introduction Research has shown that people with chronic pain have difficulty directing their attention away from pain. A mental strategy that incorporates focused attention and distraction has been found to modulate the perception of pain intensity. That strategy involves placing attention on the nociceptive stimulus felt and shifting attention to a self-generated sub-nociceptive image and rehearsing it. Event-related potential was used to study the possible processes associated with the focus-then-orient strategy. Methods Eighteen pain-free participants received different levels of 50-ms nociceptive stimulations elicited by electric shocks at the right lateral malleolus (ankle). In perception trials, participants maintained the perceived nociceptive stimulus in working memory for 3,000 ms. In imagery trials, participants mentally generated and maintained the corresponding sub-nociceptive image they had learned previously. After both types of trials, participants evaluated the pain intensity of the incoming stimulus by recalling the feeling of the nociceptive stimulation at the beginning of the trial. Results Shifting attention from the incoming nociceptive to a self-generated sub-nociceptive image elicited central P2 and centro-parietal P3 waves, which were found to correlate with proportional scores on the Stroop Test. They were followed by a frontal N400 and a parietal P600, denoting generation of sub-nociceptive images in working memory. The voltages elicited in these potentials correlated moderately with attenuation of the pain ratings of the recalled nociceptive stimulations. Conclusions Focus-and-orient attention across nociceptive and sub-nociceptive images appears to be related to response inhibition. Mental rehearsal of the sub-nociceptive images was found to modulate the perception of the nociceptive sensation felt prior to the imagery. Such modulation seems to be mediated by generating and maintaining sub-nociceptive images in working memory. Future

  19. Nuclear magnetic relaxation induced by exchange-mediated orientational randomization: longitudinal relaxation dispersion for spin I = 1.

    Science.gov (United States)

    Nilsson, Tomas; Halle, Bertil

    2012-08-07

    The frequency dependence of the longitudinal relaxation rate, known as the magnetic relaxation dispersion (MRD), can provide a frequency-resolved characterization of molecular motions in complex biological and colloidal systems on time scales ranging from 1 ns to 100 μs. The conformational dynamics of immobilized proteins and other biopolymers can thus be probed in vitro or in vivo by exploiting internal water molecules or labile hydrogens that exchange with a dominant bulk water pool. Numerous water (1)H and (2)H MRD studies of such systems have been reported, but the widely different theoretical models currently used to analyze the MRD data have resulted in divergent views of the underlying molecular motions. We have argued that the essential mechanism responsible for the main dispersion is the exchange-mediated orientational randomization (EMOR) of anisotropic nuclear (electric quadrupole or magnetic dipole) couplings when internal water molecules or labile hydrogens escape from orientationally confining macromolecular sites. In the EMOR model, the exchange process is thus not just a means of mixing spin populations but it is also the direct cause of spin relaxation. Although the EMOR theory has been used in several studies to analyze water (2)H MRD data from immobilized biopolymers, the fully developed theory has not been described. Here, we present a comprehensive account of a generalized version of the EMOR theory for spin I = 1 nuclides like (2)H. As compared to a previously described version of the EMOR theory, the present version incorporates three generalizations that are all essential in applications to experimental data: (i) a biaxial (residual) electric field gradient tensor, (ii) direct and indirect effects of internal motions, and (iii) multiple sites with different exchange rates. In addition, we describe and assess different approximations to the exact EMOR theory that are useful in various regimes. In particular, we consider the experimentally

  20. Statistical Study of the Magnetic Field Orientation in Solar Filaments

    Science.gov (United States)

    Hanaoka, Yoichiro; Sakurai, Takashi

    2017-12-01

    We have carried out a statistical study of the average orientation of the magnetic field in solar filaments with respect to their axes for more than 400 samples, based on data taken with daily full-Sun, full-Stokes spectropolarimetric observations using the He I 1083.0 nm line. The major part of the samples are the filaments in the quiet areas, but those in the active areas are included as well. The average orientation of the magnetic field in filaments shows a systematic property depending on the hemisphere; the direction of the magnetic field in filaments in the northern (southern) hemisphere mostly deviates clockwise (counterclockwise) from their axes, which run along the magnetic polarity inversion line. The deviation angles of the magnetic field from the axes are concentrated between 10° and 30°. This hemispheric pattern is consistent with that revealed for chirality of filament barbs, filament channels, and for other solar features found to possess chirality. For some filaments, it was confirmed that their magnetic field direction is locally parallel to their structure seen in Hα images. Our results for the first time confirmed this hemispheric pattern with the direct observation of the magnetic field in filaments. Interestingly, the filaments which show the opposite magnetic field deviation to the hemispheric pattern, are in many cases found above the polarity inversion line whose ambient photospheric magnetic field has the polarity alignment being opposite to that of active regions following the Hale–Nicholson law.

  1. Autonomous orientation predicts longevity: New findings from the Nun Study.

    Science.gov (United States)

    Weinstein, Netta; Legate, Nicole; Ryan, William S; Hemmy, Laura

    2018-03-10

    Work on longevity has found protective social, cognitive, and emotional factors, but to date we have little understanding of the impact of motivational dynamics. Autonomy orientation, or stable patterns of self-regulation, is theorized to be a protective factor for long-term mental and physical health (Ryan & Deci, 2017), and it is therefore a prime candidate for examining how stable psychosocial factors are linked to longevity, or life expectancy. Essays written in the 1930s by participants in the Nun Study were coded for indicators of an autonomy orientation. These were selected in line with an extensive theoretical literature based in self-determination theory (Deci & Ryan, 1985). Essays were coded for the propensity for choice in action, susceptibility to pressure, self-reflection, integration of experiences, and parental support for autonomy. These coded variables were used to predict age of death. Using 176 codable essays provided by now-deceased participants, linear regression analyses revealed that choiceful behavior, self-reflection, and parent autonomy support predicted age of death. Participants who demonstrated these stable and beneficial motivational characteristics lived longer. Personality constructs reflecting a healthy form of self-regulation are associated with long-term health. Implications for health interventions are discussed. © 2018 The Authors. Journal of Personality Published by Wiley Periodicals, Inc.

  2. A Study on the Nuclear Foreign Policy

    International Nuclear Information System (INIS)

    Yang, Maeng Ho; Oh, K. B.; Lee, H. M.; Lee, B. W.; Ko, H. S.; Ryu, J. S.; Lee, K. S.

    2006-12-01

    In this study, the changes in international nuclear environments related to nuclear non-proliferation regimes and international nuclear cooperation activities are investigated in order to suggest recommendations for actions and measures in the national policy of Korea, focusing on the trends for strengthening international nuclear non-proliferation regimes, international discussions of multi-lateral fuel supply assurances, USA nuclear energy policy and nuclear cooperation between USA and India. International nuclear non-proliferation regime is expected to be continuously strengthened during the 21st century. Assurance of a fuel supply is a critical issue in the national nuclear power industry of Korea due to a complete dependency of its uranium enrichment services on foreign countries and the declaration of a non-possession of facilities for a uranium enrichment and nuclear reprocessing in Korea. Nuclear energy is indispensable for a national energy security and securing a competitive power of nuclear technologies, and the development and export of nuclear industry products are also very important. It is recommended to strengthen the international cooperation and diplomatic efforts of Korea for protecting the national interests in the international nuclear communities and enhancing for a national power supply as well as securing of confidence and transparency of the national nuclear policy and relevant activities

  3. Osiris: an object oriented software tool for modelling the logistics, economics and environmental impact of the nuclear fuel cycle

    International Nuclear Information System (INIS)

    Millington, D.N.

    2003-01-01

    Osiris is a general purpose software tool which has been developed for performing studies of material usage, economics and environmental impacts associated with the nuclear fuel cycle. It is particularly suited to the analysis of complex multiple recycling scenarios featuring combinations of both existing and new reactor systems. A discrete event model is used to represent the movement of material batches around the fuel cycle due to the operations and timings of process plants. Nuclear materials are represented by state vectors, which undergo compositional changes due to radioactive decay and irradiation. A library of generic plant types is provided, which are declared and configured in order to represent specific plants. Reactors, front-end and back-end process plants, buffers, stores and material sources can be modelled. Fuel cycle scenarios are then constructed by defining the material flow paths between the plants. The plant parameters and flow paths can be altered dynamically over the course of a scenario in order to represent changes in recycling strategies and retirement and replacement of process plants. Discounted electricity costs can be determined by assigning unit costs to all capital investments, processes and raw materials. Radiotoxicity levels of waste streams can also be evaluated. The software was developed in C++ using objected oriented analysis and design methods. The use of abstraction and inheritance have enabled an open-ended fuel cycle modelling environment to be established, into which new reactor or plant models can readily be integrated. An overview of the object model, numerical modelling assumptions and the design and implementation of the software is presented. (author)

  4. Nuclear-powered Hysat spacecraft: comparative design study

    International Nuclear Information System (INIS)

    Raab, B.

    1975-08-01

    The study shows that the all-nuclear spacecraft can have a substantial weight advantage over a hybrid (nuclear/solar) or all-solar spacecraft, owing to a further reduction in power requirement, and to the elimination of such equipment as the sensor gimbal and rotating joint assemblies. Because the need for a sun-oriented section is eliminated, the all-nuclear spacecraft can be designed as a monolithic structure, with the sensor and other payload firmly secured in a fixed position on the structure. This enhances attitude stability while minimizing structural weight and eliminating the need for flexible fluid lines. Sensor motion can be produced, varied, and controlled within the limits specified by the study contractors by moving the entire spacecraft in the prescribed pattern. A simple attitude control system using available hardware suffices to meet all requirements

  5. Large scale nuclear structure studies

    International Nuclear Information System (INIS)

    Faessler, A.

    1985-01-01

    Results of large scale nuclear structure studies are reported. The starting point is the Hartree-Fock-Bogoliubov solution with angular momentum and proton and neutron number projection after variation. This model for number and spin projected two-quasiparticle excitations with realistic forces yields in sd-shell nuclei similar good results as the 'exact' shell-model calculations. Here the authors present results for a pf-shell nucleus 46 Ti and results for the A=130 mass region where they studied 58 different nuclei with the same single-particle energies and the same effective force derived from a meson exchange potential. They carried out a Hartree-Fock-Bogoliubov variation after mean field projection in realistic model spaces. In this way, they determine for each yrast state the optimal mean Hartree-Fock-Bogoliubov field. They apply this method to 130 Ce and 128 Ba using the same effective nucleon-nucleon interaction. (Auth.)

  6. Hanford Nuclear Energy Center study

    International Nuclear Information System (INIS)

    Harty, H.

    1976-01-01

    Studies of a Nuclear Energy Center (NEC) at Hanford have not revealed any insurmountable technical problems, but problems have been identified that appear to be more difficult to resolve than for dispersed siting. Major technical developments in meteorology, and probably in seismology, are needed before an environmental report or safety analysis report could be prepared for an NEC. It would be helpful in further NEC studies if licensing requirements (and related criteria) were defined for them. An NEC will likely cause a step change in the amount of planning and involvement of regional groups in the energy picture compared to dispersed siting. The tools that must be developed for analysis of NECs will probably be used for evaluating dispersed siting in greater detail. NECs will probably bring about the use of dry or wet/dry cooling before it is required in equivalent amount for dispersed plants

  7. Hanford Nuclear Energy Center study

    Energy Technology Data Exchange (ETDEWEB)

    Harty, H.

    1976-03-16

    Studies of a Nuclear Energy Center (NEC) at Hanford have not revealed any insurmountable technical problems, but problems have been identified that appear to be more difficult to resolve than for dispersed siting. Major technical developments in meteorology, and probably in seismology, are needed before an environmental report or safety analysis report could be prepared for an NEC. It would be helpful in further NEC studies if licensing requirements (and related criteria) were defined for them. An NEC will likely cause a step change in the amount of planning and involvement of regional groups in the energy picture compared to dispersed siting. The tools that must be developed for analysis of NECs will probably be used for evaluating dispersed siting in greater detail. NECs will probably bring about the use of dry or wet/dry cooling before it is required in equivalent amount for dispersed plants.

  8. A study on the nuclear foreign policy

    International Nuclear Information System (INIS)

    Oh, Keun Bae; Choi, Y. M.; Lee, D. J.; Lee, K. S.; Lee, B. W.; Ko, H. S.

    1997-12-01

    The objective of this study is to analyze and foresee the international trends related to nuclear activities, especially nuclear non-proliferation activities among others, and to suggest desirable policy direction so as to mitigate hurdles that may hinder the expansion of utilization and development of nuclear energy in Korea. This study approaches the trends of international nuclear arena in five aspects as follows. First, this study analyzes the trends of the global multilateral nuclear non-proliferation regime in Chapter II, which includes the NPT, the IAEA safeguards system, the international export control regime, the CTBT, and the treaties on nuclear weapon-free zone. Second, this study analyzes the trends of various international nuclear organizations in Chapter III, which include IAEA, OECD/NEA, and CTBTO. Third, this study reviews and analyzes regional situations in the northeast Asia surrounding Korea in Chapter IV, inter alia, pending concerns over the North Korean nuclear activities and proposed Northeast Asian nuclear cooperatively bodies such as ASIATOM, etc. Fourth, in Chapter V, this study analyzes issues concerning bilateral nuclear relationship. Especially this study analyzes nuclear cooperating agreements in general, and suggests a model agreement for the government to use when negotiating nuclear cooperation agreements with other countries. Furthermore, this study analyzes the trends of bilateral cooperation with the U.S., Canada, and Australia focusing on the standing bilateral nuclear committees. Fifth, Chapter VI especially deals with the framework of the U. S.'s nuclear non-proliferation policy, focusing on the issues such as the disposition of weapons-usable excess plutonium and the nuclear cooperation with China. (author). 44 refs., 15 tabs., 2 figs

  9. Attenuation of nuclear orientation of .sup.127./sup.In in GD and the InGDKorringa spin-lattice relaxation time constant

    Czech Academy of Sciences Publication Activity Database

    Stone, J.; Ohya, S.; Rikovska, J.; Woehr, A.; Betts, P.; Dupák, Jan; Fogelberg, B.; Jacobsson, L.

    č. 133 (2001), s. 111 - 115 ISSN 0304-3843 Institutional research plan: CEZ:AV0Z2065902 Keywords : nuclear orientation * Korringa constant Subject RIV: BM - Solid Matter Physics ; Magnetism Impact factor: 0.634, year: 2001

  10. Theoretical study of asymmetric super-rotors: Alignment and orientation

    Science.gov (United States)

    Omiste, Juan J.

    2018-02-01

    We report a theoretical study of the optical centrifuge acceleration of an asymmetric top molecule interacting with an electric static field by solving the time-dependent Schrödinger equation in the rigid rotor approximation. A detailed analysis of the mixing of the angular momentum in both the molecular and the laboratory fixed frames allows us to deepen the understanding of the main features of the acceleration process, for instance, the effective angular frequency of the molecule at the end of the pulse. For the case of the SO2 molecular super-rotor, we show numerically that it rotates around one internal axis and that its dynamics is confined to the plane defined by the polarization axis of the laser, in agreement with experimental findings. Furthermore, we consider the orientation patterns induced by the dc field, showing the characteristics of their structure as a function of the strength of the static field and the initial configuration of the fields.

  11. Studi Kasus Implementasi Service Oriented Architecture (SOA di Credit Suisse

    Directory of Open Access Journals (Sweden)

    Sartika Kurniali

    2013-12-01

    Full Text Available Credit Suisse Group (CSG is a leading company engaged in global financial services. At the end of 90s IT infrastructure complexity of Credit Suisse has reached a critical situation. The existing IT infrastructure is nolonger able to support the required business functionality. This leads to the introduction of an integrated architecture based on Service-Oriented Architecture (SOA. The purpose of this study is to learn how Credit Suisse successfully implements SOA both on a technical and organizational level. Analyses were performed by processing factual and reference data acquired. From the research, the successful implementation is due to clarity of interface, clarity of process, management commitment, and solid technology. Their success does not come easily since they also face obstacles and conflicts on the implementation.

  12. Nuclear communication management. Case study: the Nuclear Agency of Cuba

    International Nuclear Information System (INIS)

    Contreras Izquierdo, Marta Alicia

    2011-01-01

    The development of the science is a hallmark of our time. Thousands of products, processes and services incorporated into daily newspaper innovations that are result of basic and applied research. A primary mechanism of existence and development of the science is the communication of its results, in both disclose, transmit and validate the science allows. For an institution in the sector nuclear is doubly important due to the ignorance of the technology and the public perception that it generates. The study responds to the need of the Nuclear Energy Agency and Advanced technologies to manage the communication of their activities and increase the visibility of their results in science and innovation. In response to the approach of the problem assessed the management of the communication of the agency taking into account four nuclear activity basic elements: the existence of policies, training, assessment or diagnosis and planning. The diagnosis of internal and external communication It was through a study of image. For the diagnosis was developed a method, from those used internationally for imaging studies. The results of the diagnostic allowed to conclude that insufficient visibility of the nuclear activity of the AENTA is due to internal and external factors related to communication. The study allowed to design a communication strategy for the Agency's Nuclear energy and advanced technologies for nuclear activities and develop a methodological proposal for the design of strategies of communication with the Agency. (author)

  13. Introducing the Contextual Orientation to Bible: A Comparative Study

    Science.gov (United States)

    Levisohn, Jon A.

    2008-01-01

    Barry Holtz' (2003) presentation of a map of orientations for the teaching of Bible provides a certain kind of focus for research, enabling us to ask deeper and richer question about those orientations. This article investigates the teaching of one teacher, in two different settings--more specifically, how that teacher introduces Bible in those…

  14. Online Student Orientation in Higher Education: A Developmental Study

    Science.gov (United States)

    Cho, Moon-Heum

    2012-01-01

    Although orientation for online students is important to their success, little information about how to develop an online student orientation (OSO) has appeared in the literature; therefore, the purpose of this article was to describe the entire process of developing an OSO. This article describes the analysis, design, development, and evaluation…

  15. A Study on the Nuclear Technology Policy

    Energy Technology Data Exchange (ETDEWEB)

    Kim, H. J.; Lim, C. Y.; Yang, M. H. (and others)

    2008-03-15

    The objective of the study was to make policy-proposes for enhancing the effectiveness and efficiency of national nuclear technology development programs. To do this, changes of international nuclear energy policy environment and trends of nuclear technology development was surveyed and analyzed. In the viewpoint of analysis of the changes in the global policy environment surrounding nuclear technology development and development of national nuclear R and D strategy, this study (1) analyzed trends of nuclear technology policies and (2) developed the nuclear energy R and D innovation strategies. To put it in more detail, each subject was further explored as follows; (1) themes to analyze trends of nuclear policies: nuclear Renaissance and forecast for nuclear power plant, International collaboration for advanced nuclear technologies in GIF, INPRO and I-NERI, The present situation and outlook for world uranium market (2) themes to develop of nuclear energy R and D innovation strategies: The mid-term strategy plan of the KAERI, The technological innovation case of the KAERI.

  16. A Study on the Nuclear Technology Policy

    International Nuclear Information System (INIS)

    Kim, H. J.; Lim, C. Y.; Yang, M. H.

    2008-03-01

    The objective of the study was to make policy-proposes for enhancing the effectiveness and efficiency of national nuclear technology development programs. To do this, changes of international nuclear energy policy environment and trends of nuclear technology development was surveyed and analyzed. In the viewpoint of analysis of the changes in the global policy environment surrounding nuclear technology development and development of national nuclear R and D strategy, this study (1) analyzed trends of nuclear technology policies and (2) developed the nuclear energy R and D innovation strategies. To put it in more detail, each subject was further explored as follows; (1) themes to analyze trends of nuclear policies: nuclear Renaissance and forecast for nuclear power plant, International collaboration for advanced nuclear technologies in GIF, INPRO and I-NERI, The present situation and outlook for world uranium market (2) themes to develop of nuclear energy R and D innovation strategies: The mid-term strategy plan of the KAERI, The technological innovation case of the KAERI

  17. A Study on the Nuclear Technology Policy

    International Nuclear Information System (INIS)

    Lim, C. Y.; Lee, K. S.; Jeong, I.; Lee, J. H.

    2009-04-01

    The objective of the study was to make policy-proposes for enhancing the effectiveness and efficiency of national nuclear technology development programs. To do this, recent changes of international nuclear energy policy and trends of nuclear technology R and D was surveyed and analyzed. In the viewpoint of analysis of the changes in the global policy surrounding nuclear technology development and development of national nuclear R and D strategy, this study (1) analyzed the trends of nuclear technology policies and (2) discussed the mid and long term strategy of nuclear energy R and D. To put it in more detail, each subject was further explored as follows; (1) analyzed the trends of nuclear technology policies - Trend and prospects of the international and domestic nuclear policies - Investigation of development of small and medium sized policies - International collaboration for advanced nuclear technologies (2) discussed the mid and long term strategy of nuclear energy R and D - The long term development plan for future nuclear energy system - The facilitation of technology commercialization

  18. A study on the nuclear technology policy

    International Nuclear Information System (INIS)

    Yang, M. H.; Kim, H. J.; Chung, W. S.; Lee, T. J.; Yun, S. W.; Jeong, Ik

    2002-01-01

    This study was carried out as a part of institutional activities of KAERI. This study suggested the effective and systematic alternatives for the development of domestic industry through nuclear long-term R and D program while timely responding to the environmental change in local and global sense. First of all, this study investigated the current status and prospect of nuclear power supply, the global technological change of nuclear fuel cycle, the nuclear policy changes of major countries and the role of nuclear energy in East Asian countries. Second, some policy alternatives are suggested in association with the role of national R and D in enhancing industrial competitiveness, the effective management of nuclear long-term R and D program to facilitate technological innovation and the way to enlarge the utilization of nuclear R and D results and radiation technology

  19. Crystallographic orientation study of silicon steels using X-ray diffraction, electrons diffraction and the Etch Pit method

    International Nuclear Information System (INIS)

    Santos, Hamilta de Oliveira

    1999-01-01

    The aim of the present study is the microstructural and crystallographic orientation of Fe-3%Si steel. The silicon steel shows good electrical properties and it is used in the nuclear and electrical power fields. The studied steel was supplied by Cia. Acos Especiais Itabira S/A - ACESITA. The material was received in the hot compressed condition, in one or two passes. The hot compressing temperatures used were 900, 1000 and 1100 deg C with soaking times ranging from 32 to 470 s. The material preferential crystallographic orientation was evaluated in every grain of the samples. The characterization techniques used were: scanning electron microscopy (SEM) using the etch pit method; X ray diffraction using the Laue back-reflection method; orientation imaging microscopy (OIM). Microstructural characterization in terms of grain size measurement and mean number of grains in the sample were also undertaken. The Laue method was found an easy technique to access crystallographic orientation of this work polycrystalline samples 2.5 mm average grain size. This was due to the inability to focus the X-rays on a single grain of the material. The scanning electron microscopy showed microcavities left by the etch pit method, which allowed the observation of the crystallographic orientation of each grain from the samples. No conclusive grain crystallographic orientation was possible to obtain by the OIM technique due to the non-existing rolling direction. A more extensive work with the OIM technique must be undertaken on the Fe-3%Si with oriented grains and non oriented grains. (author)

  20. Experimental studies of nuclear astrophysics

    International Nuclear Information System (INIS)

    He Jianjun; Zhou Xiaohong; Zhang Yuhu

    2013-01-01

    Nuclear astrophysics is an interdisciplinary subject combining micro-scale nuclear physics and macro-scale astrophysics. Its main aims are to understand the origin and evolution of the elements in the universe, the time scale of stellar evolution, the stellar environment and sites, the energy generation of stars from thermonuclear processes and its impact on stellar evolution and the mechanisms driving astrophysical phenomena, and the structure and property of compact stars. This paper presents the significance and current research status of nuclear astrophysics; we introduce some fundamental concepts, the nuclear physics input parameters required by certain astrophysics models, and some widely-used experimental approaches in nuclear astrophysics research. The potential and feasibility of research in this field using China’s current and planned large-scale scientific facilities are analyzed briefly. Finally, the prospects of the establishing a deep underground science and engineering laboratory in China are envisaged. (authors)

  1. La Guerra Civil en Siria y el Programa Nuclear Iraní: dos cuestiones fundamentales en el Medio Oriente

    Directory of Open Access Journals (Sweden)

    Atilio Molteni

    2013-01-01

    Full Text Available En el siguiente artículo abordaremos dos grandes conflictos que se desarrollan en el Medio Oriente estrechamente relacionados entre sí. En primer lugar, haremos referencia a las características geopolíticas de la región y luego al interés de Irán de consolidarse como una potencia regional, y al enfrentamiento que mantiene con los Estados Unidos. Describiremos las características de la guerra civil en Siria y las luchas étnicas y religiosas a las que dan lugar, destacando las dificultades para hallar una solución consensuada, la gran crisis humanitaria existente y la incertidumbre acerca de su resultado final. En segundo lugar, analizaremos el plan nuclear iraní, describiendo su tratamiento en el OIEA y en el Consejo de Seguridad, así como los intentos internacionales para evitar que Irán llegue a tener una capacidad nuclear militar. Tanto Siria como Irán han buscado la cooperación de Rusia. Moscú tiene intereses estratégicos en Siria originados en el período de la Guerra Fría, mientras que a Irán le suministra tecnología nuclear y militar, situaciones a través de las cuales pretende consolidar su gravitación en el Medio Oriente.

  2. Antiprotonic Radioactive Atom for Nuclear Structure Studies

    International Nuclear Information System (INIS)

    Wada, M.; Yamazaki, Y.

    2005-01-01

    A future experiment to synthesize antiprotonic radioactive nuclear ions is proposed for nuclear structure studies. Antiprotonic radioactive nuclear atom can be synthesized in a nested Penning trap where a cloud of antiprotons is prestored and slow radioactive nuclear ions are bunch-injected into the trap. By observing of the ratio of π+ and π- produced in the annihilation process, we can deduce the different abundance of protons and neutrons at the surface of the nuclei. The proposed method would provide a unique probe for investigating the nuclear structure of unstable nuclei

  3. Useful oriented immobilization of antibodies on chimeric magnetic particles: direct correlation of biomacromolecule orientation with biological activity by AFM studies.

    Science.gov (United States)

    Marciello, Marzia; Filice, Marco; Olea, David; Velez, Marisela; Guisan, José M; Mateo, Cesar

    2014-12-16

    The preparation and performance of a suitable chimeric biosensor based on antibodies (Abs) immobilized on lipase-coated magnetic particles by means of a standing orienting strategy are presented. This novel system is based on hydrophobic magnetic particles coated with modified lipase molecules able to orient and further immobilize different Abs in a covalent way without any previous site-selective chemical modification of biomacromolecules. Different key parameters attending the process were studied and optimized. The optimal preparation was performed using a controlled loading (1 nmol Ab g(-1) chimeric support) at pH 9 and a short reaction time to recover a biological activity of about 80%. AFM microscopy was used to study and confirm the Abs-oriented immobilization on lipase-coated magnetic particles and the final achievement of a highly active and recyclable chimeric immune sensor. This direct technique was demonstrated to be a powerful alternative to the indirect immunoactivity assay methods for the study of biomacromolecule-oriented immobilizations.

  4. Preliminary nuclear decommissioning cost study

    International Nuclear Information System (INIS)

    Sissingh, R.A.P.

    1981-04-01

    The decommissioning of a nuclear power plant may involve one or more of three possible options: storage with surveillance (SWS), restricted site release (RSR), and unrestricted site use(USU). This preliminary study concentrates on the logistical, technical and cost aspects of decommissioning a multi-unit CANDU generating station using Pickering GS as the reference design. The procedure chosen for evaluation is: i) removal of the fuel and heavy water followed by decontamination prior to placing the station in SWS for thiry years; ii) complete dismantlement to achieve a USU state. The combination of SWS and USU with an interim period of surveillance allows for radioactive decay and hence less occupational exposure in achieving USU. The study excludes the conventional side of the station, assumes waste disposal repositories are available 1600 km away from the station, and uses only presently available technologies. The dismantlement of all systems except the reactor core can be accomplished using Ontario Hydro's current operating, maintenance and construction procedures. The total decommissioning period is spread out over approximately 40 years, with major activities concentrated in the first and last five years. The estimated dose would be approximately 1800 rem. Overall Pickering GS A costs would be $162,000,000 (1980 Canadian dollars)

  5. Theoretical studies in nuclear physics

    International Nuclear Information System (INIS)

    Landau, R.H.; Madsen, V.A.

    1991-01-01

    This report discusses: Imaginary Optical Potential; Isospin Effects; Scattering and Charge Exchange Reactions; Pairing Effects; bar K Interactions; Momentum Space Proton Scattering; Computational Nuclear Physics; Pion-Nucleus Interactions; and Antiproton Interactions

  6. 31 OBJECTIVE ORIENTED PROBLEM SOLVING A Case Study ...

    African Journals Online (AJOL)

    succeed but which are not Wlder the direct control of the activities ..... Frequent failure of electrical machines due to intenuption .... suffers high attribution rate of skilled personnel and as a result is .... Management and Objective Oriented Project.

  7. Study on a Process-oriented Knowledge Management Model

    OpenAIRE

    Zhang, Lingling; Li, Jun; Zheng, Xiuyu; Li, Xingsen; Shi, Yong

    2007-01-01

    Now knowledge has become the most important resource of enterprises. Process-oriented knowledge management (POKM) is a new and valuable research field. It may be the most practical method to deal with difficulties in knowledge management. The paper analyzes background, hypothesis and proposes of POKM, define the process knowledge, and give a process-oriented knowledge management model. The model integrates knowledge, process, human, and technology. It can improve the decision support capabili...

  8. A study on the nuclear technology policy

    International Nuclear Information System (INIS)

    Kim, H. J.; Oh, K. B.; Chung, W. S.; Lee, T. J.; Yun, S. W.; Jeong, Ik

    2005-01-01

    This study was conducted as a part of institutional activities of KAERI, and the objective of the study is to survey and analyze the change of international environment in nuclear use and research and development environment, and to propose systematic alternatives on technology policy for efficiency and effectiveness of research and development through national R and D program while timely responding to the environmental change in local and global sense. Acknowledging the importance of the relationship between the external environment and the national nuclear R and D strategic planning for changing of environment of surrounding nuclear technology and development in the world, this study focused on the three major subjects: (1) investigation and analysis of international nuclear environmental and technological change; (2) developing nuclear R and D strategy based on the analysis of national and global environment surrounding nuclear technology development and diffusion; (3) the evaluation of role of nuclear technology and environment from the point of views of environmental effects. In order to enhance the role of national nuclear R and D program and to cope with the environmental and technological change surrounding nuclear energy, it is recommended that active participation should be done in ongoing international collaboration on future innovative nuclear technology for absorption of advanced technologies and strategic R and D planning should be centered on core technology field based on long-term vision and suggested NuTRM considering future energy-environmental surroundings for maximized use of domestic technology capabilities and resources

  9. High pressure dielectric studies on the structural and orientational glass.

    Science.gov (United States)

    Kaminska, E; Tarnacka, M; Jurkiewicz, K; Kaminski, K; Paluch, M

    2016-02-07

    High pressure dielectric studies on the H-bonded liquid D-glucose and Orientationally Disordered Crystal (ODIC) 1,6-anhydro-D-glucose (levoglucosan) were carried out. It was shown that in both compounds, the structural relaxation is weakly sensitive to compression. It is well reflected in the low pressure coefficient of the glass transition and orientational glass transition temperatures which is equal to 60 K/GPa for both D-glucose and 1,6-anhydro-D-glucose. Although it should be noted that ∂Tg(0)/∂p evaluated for the latter compound seems to be enormously high with respect to other systems forming ODIC phase. We also found that the shape of the α-loss peak stays constant for the given relaxation time independently on the thermodynamic condition. Consequently, the Time Temperature Pressure (TTP) rule is satisfied. This experimental finding seems to be quite intriguing since the TTP rule was shown to work well in the van der Waals liquids, while in the strongly associating compounds, it is very often violated. We have also demonstrated that the sensitivity of the structural relaxation process to the temperature change measured by the steepness index (mp) drops with pressure. Interestingly, this change is much more significant in the case of D-glucose with respect to levoglucosan, where the fragility changes only slightly with compression. Finally, kinetics of ODIC-crystal phase transition was studied at high compression. It is worth mentioning that in the recent paper, Tombari and Johari [J. Chem. Phys. 142, 104501 (2015)] have shown that ODIC phase in 1,6-anhydro-D-glucose is stable in the wide range of temperatures and there is no tendency to form more ordered phase at ambient pressure. On the other hand, our isochronal measurements performed at varying thermodynamic conditions indicated unquestionably that the application of pressure favors solid (ODIC)-solid (crystal) transition in 1,6-anhydro-D-glucose. This result mimics the impact of pressure on the

  10. The Cost of being Object-Oriented: A Preliminary Study

    Directory of Open Access Journals (Sweden)

    Zoran Budimlić

    1999-01-01

    Full Text Available Since the introduction of the Java programming language, there has been widespread interest in the use Java for the high performance scientific computing. One major impediment to such use is the performance penalty paid relative to Fortran. To support our research on overcoming this penalty through compiler technology, we have developed a benchmark suite, called OwlPack, which is based on the popular LINPACK library. Although there are existing implementations of LINPACK in Java, most of these are produced by direct translation from Fortran. As such they do not reflect the style of programming that a good object‐oriented programmer would use in Java. Our goal is to investigate how to make object‐oriented scientific programming practical. Therefore we developed two object‐oriented versions of LINPACK in Java, a true polymorphic version and a “Lite” version designed for higher performance. We used these libraries to perform a detailed performance analysis using several leading Java compilers and virtual machines, comparing the performance of the object‐oriented versions of the benchmark with a version produced by direct translation from Fortran. Although Java implementations have been made great strides, they still fall short on programs that use the full power of Java’s object‐oriented features. Our ultimate goal is to drive research on compiler technology that will reward, rather than penalize good object‐oriented programming practice.

  11. STUDY ON STATE SYSTEMS OF ACCOUNTING AND CONTROL OF NUCLEAR MATERIALS IN SOME COUNTRIES

    International Nuclear Information System (INIS)

    ZIDAN, W.I.; EL-GAMMAL, W.A.

    2008-01-01

    All Safeguards agreements between the International Atomic Energy Agency (IAEA) and its Member States require the State to establish and maintain a system of accounting for and control of nuclear material subject to safeguards (SSAC) in order to keep track on nuclear materials subject to such agreements. SSACs implementation in 34 IAEA member States varying in their size of nuclear activities, international treaties and nuclear power plants ownership were studied. The study is oriented to state legal framework, SSAC authority, dependency, objectives and functions

  12. A study on nuclear technology policy

    International Nuclear Information System (INIS)

    Yang, M. H.; Kim, H. J.; Chung, W. S.; Yun, S. W.; Kim, H. S.

    2001-01-01

    This study was carried out as a part of institutional activities of KAERI. Major research area are as follows; Future directions and effects for national nuclear R and D to be resulted from restructuring of electricity industry are studied. Comparative study was carried out between nuclear energy and other energy sources from the point of views of environmental effects by introducing life cycle assessment(LCA) method. Japanese trends of reestablishment of nuclear policy such as restructuring of nuclear administration system and long-term plan of development and use of nuclear energy are also investigated, and Russian nuclear development program and Germany trends for phase-out of nuclear electricity generation are also investigated. And trends of the demand and supply of energy in eastern asian countries in from the point of view of energy security and tension in the south china sea are analyzed and investigation of policy trends of Vietnam and Egypt for the development and use of nuclear energy for the promotion of nuclear cooperation with these countries are also carried out. Due to the lack of energy resources and high dependence of imported energy, higher priority should be placed on the use of localized energy supply technology such as nuclear power. In this connection, technological development should be strengthened positively in order to improve economy and safety of nuclear energy and proliferation resistance of nuclear fuel cycle and wide ranged use of radiation and radioisotopes and should be reflected in re-establishment of national comprehensive promotion plan of nuclear energy in progress

  13. A study on nuclear technology policy

    Energy Technology Data Exchange (ETDEWEB)

    Yang, M H; Kim, H J; Chung, W S; Yun, S W; Kim, H S

    2001-01-01

    This study was carried out as a part of institutional activities of KAERI. Major research area are as follows; Future directions and effects for national nuclear R and D to be resulted from restructuring of electricity industry are studied. Comparative study was carried out between nuclear energy and other energy sources from the point of views of environmental effects by introducing life cycle assessment(LCA) method. Japanese trends of reestablishment of nuclear policy such as restructuring of nuclear administration system and long-term plan of development and use of nuclear energy are also investigated, and Russian nuclear development program and Germany trends for phase-out of nuclear electricity generation are also investigated. And trends of the demand and supply of energy in eastern asian countries in from the point of view of energy security and tension in the south china sea are analyzed and investigation of policy trends of Vietnam and Egypt for the development and use of nuclear energy for the promotion of nuclear cooperation with these countries are also carried out. Due to the lack of energy resources and high dependence of imported energy, higher priority should be placed on the use of localized energy supply technology such as nuclear power. In this connection, technological development should be strengthened positively in order to improve economy and safety of nuclear energy and proliferation resistance of nuclear fuel cycle and wide ranged use of radiation and radioisotopes and should be reflected in re-establishment of national comprehensive promotion plan of nuclear energy in progress.

  14. Study of nuclear environment and material strategy

    International Nuclear Information System (INIS)

    Kamei, Takashi

    2011-01-01

    There is a concern about the environmental hazard caused by radioactive materials coming with the expansion of nuclear power and even by renewable energies, which are used as countermeasures against global warming to construct a sustainable society. A concept to internalize the pollution caused by radioactive materials, which are directly or indirectly related to nuclear power, to economical activities by adopting externality is proposed. Energy and industrial productions are strongly related to the supply of material. Therefore material flow is also part of this internalization concept. The concept is named 'NEMS (Nuclear Environment and Material Strategy)'. Fission products and transuranic isotopes from nuclear power such as plutonium are considered in this concept. Thorium, which comes from the material flow of rare-earth production to support the elaboration of renewable energies including electric vehicles on the consumer side, is considered as an externality of the non-nuclear power field. Fission products contain some rare-earth materials. Thus, these rare-earth materials, which are extracted by the advanced ORIENT (Optimization by Recycling Instructive Elements) cycle, are internalized as rare-earth supplier in economy. However, the supply quantity is limited. Therefore rare-earth production itself is still needed. The externality of rare-earth production is thorium and is internalized by using it as nuclear fuel. In this case, the demand of thorium is still small within these few decades compared to the production of thorium as byproduct of the rare-earth production. A thorium energy bank (The Bank) is advanced to regulate the storage of the excess amount of thorium inside of an international framework in order to prevent environmental hazard resulting from the illegal disposal of thorium. In this paper, the material flows of thorium and rare-earth are outlined. Their material balance are demonstrated based on the prediction of rare-earth mining and an

  15. Customer orientation among employees in public administration: a transnational, longitudinal study.

    Science.gov (United States)

    Korunka, Christian; Scharitzer, Dieter; Carayon, Pascale; Hoonakker, Peter; Sonnek, Angelika; Sainfort, Francois

    2007-05-01

    The relation between ergonomic principles and quality management initiatives, both, in the private and public sector, has received increasing attention in the recent years. Customer orientation among employees is not only an important quality principle, but also an essential prerequisite for customer satisfaction, especially in service organizations. In this context, the objective of introducing new public management (NPM) in public-service organizations is to increase customer orientation among employees who are at the forefront of service providing. In this study, we developed a short scale to measure perceived customer orientation. In two separate longitudinal studies carried out in Austria and the US, we analyzed changes in customer orientation resulting from the introduction of NPM. In both organizations, we observed a significant increase in customer orientation. Perceived customer orientation was related to job characteristics, organizational characteristics and employee quality of working life. Creating positive influences on these characteristics within the framework of an organizational change process has positive effects on employee customer orientation.

  16. A strategy study on international nuclear cooperation

    International Nuclear Information System (INIS)

    Chang, Hong Rae; Kim, Kyung Pyo; Kim, Young Min; Shin, Kyung Hye; Yoon, Sung Won; Lee, Myung Ho; Lee, Jong Hee; Hong Young Don

    1995-12-01

    The implementing methodologies suggested from this study cover the following: 1) strategies for the promotion of the nation's leading roles in such international organizations as the IAEA and OECD/NEA; 2) strategies for the implementation of national nuclear policy, positively coping with international nuclear trends; 3) strategies for the promotion of technical cooperation with the Russian Federation to introduce essential nuclear technology by utilizing its new environment of science and technology. 39 tabs., 28 figs., 64 refs. (Author)

  17. Image fusion in open-architecture quality-oriented nuclear medicine and radiology departments

    Energy Technology Data Exchange (ETDEWEB)

    Pohjonen, H

    1998-12-31

    Imaging examinations of patients belong to the most widely used diagnostic procedures in hospitals. Multimodal digital imaging is becoming increasingly common in many fields of diagnosis and therapy planning. Patients are frequently examined with magnetic resonance imaging (MRI), X-ray computed tomography (CT) or ultrasound imaging (US) in addition to single photon (SPET) or positron emission tomography (PET). The aim of the study was to provide means for improving the quality of the whole imaging and viewing chain in nuclear medicine and radiology. The specific aims were: (1) to construct and test a model for a quality assurance system in radiology based on ISO standards, (2) to plan a Dicom based image network for fusion purposes using ATM and Ethernet technologies, (3) to test different segmentation methods in quantitative SPET, (4) to study and implement a registration and visualisation method for multimodal imaging, (5) to apply the developed method in selected clinical brain and abdominal images, and (6) to investigate the accuracy of the registration procedure for brain SPET and MRI 90 refs. The thesis includes also six previous publications by author

  18. Image fusion in open-architecture quality-oriented nuclear medicine and radiology departments

    International Nuclear Information System (INIS)

    Pohjonen, H.

    1997-01-01

    Imaging examinations of patients belong to the most widely used diagnostic procedures in hospitals. Multimodal digital imaging is becoming increasingly common in many fields of diagnosis and therapy planning. Patients are frequently examined with magnetic resonance imaging (MRI), X-ray computed tomography (CT) or ultrasound imaging (US) in addition to single photon (SPET) or positron emission tomography (PET). The aim of the study was to provide means for improving the quality of the whole imaging and viewing chain in nuclear medicine and radiology. The specific aims were: (1) to construct and test a model for a quality assurance system in radiology based on ISO standards, (2) to plan a Dicom based image network for fusion purposes using ATM and Ethernet technologies, (3) to test different segmentation methods in quantitative SPET, (4) to study and implement a registration and visualisation method for multimodal imaging, (5) to apply the developed method in selected clinical brain and abdominal images, and (6) to investigate the accuracy of the registration procedure for brain SPET and MRI

  19. Image fusion in open-architecture quality-oriented nuclear medicine and radiology departments

    Energy Technology Data Exchange (ETDEWEB)

    Pohjonen, H

    1997-12-31

    Imaging examinations of patients belong to the most widely used diagnostic procedures in hospitals. Multimodal digital imaging is becoming increasingly common in many fields of diagnosis and therapy planning. Patients are frequently examined with magnetic resonance imaging (MRI), X-ray computed tomography (CT) or ultrasound imaging (US) in addition to single photon (SPET) or positron emission tomography (PET). The aim of the study was to provide means for improving the quality of the whole imaging and viewing chain in nuclear medicine and radiology. The specific aims were: (1) to construct and test a model for a quality assurance system in radiology based on ISO standards, (2) to plan a Dicom based image network for fusion purposes using ATM and Ethernet technologies, (3) to test different segmentation methods in quantitative SPET, (4) to study and implement a registration and visualisation method for multimodal imaging, (5) to apply the developed method in selected clinical brain and abdominal images, and (6) to investigate the accuracy of the registration procedure for brain SPET and MRI 90 refs. The thesis includes also six previous publications by author

  20. Nuclear systems of the future - generation 4. Proposals of strategic orientations for the nuclear systems of the future

    International Nuclear Information System (INIS)

    2007-01-01

    Several points, specific to France, must be taken into consideration for the long term strategic choice of future nuclear systems, in particular: taking the best profit of the progress potentialities of water reactors, optimizing the opportunities offered by the renewal of power plants in operation, integrating the consequences and the implementation of a strategy of optimized management of radioactive wastes, and looking for improvements that would make nuclear energy an active contributor to sustainable development. The prospective researches carried out by the CEA and its industrial partners have led to propose a R and D strategy with 3 complementary goals: search for innovations for water reactors, development of fast neutron reactors with closed fuel cycle (sodium fast reactor (SFR), gas fast reactor (GFR)), and development of key-technologies for nuclear hydrogen production (very high temperature reactor (VHTR)). The R and D effort concerns also the subcritical systems devoted to transmutation, the new cycle processes for a global management of actinides, and some other nuclear systems like the molten salt reactors (MSR) and the supercritical water reactors (SCWR). This paper presents the R and D strategy for each technology with its priorities, steps, financial means and collaborations. (J.S.)

  1. Nuclear biological studies in France

    International Nuclear Information System (INIS)

    Coursaget, J.

    1961-01-01

    On the occasion of a colloquium on radiobiological research programmes, a number of documents dealing with French accomplishments and projects in this field were collected together. We felt that it would be useful to assemble these papers in one report; although they are brief and leave gaps to be filled in, they provide certain data, give an overall view of the situation, and can also suggest a rough plan for the general policy to adopt in the field of 'nuclear' biological research; i.e. research based on the nuclear tracer method or devoted to the action of ionising radiations. (author) [fr

  2. Comparative study for endenergy supply with nuclear district heating and with nuclear long distance energy

    International Nuclear Information System (INIS)

    Dietrich, G.

    1975-07-01

    The future energy supply of the Federal Republic of Germany will be orientated to secure energy carriers. Moreover economical energy consumption and environmental protection will be a force for an increased application of district heating and nuclear long distance energy. The technics of generation, transport and distribution of the two energy carriers will be discussed, besides a short review of application areas and potentials. The cost comparisons by models show that there are special advantages for both systems. Nevertheless the conclusions from the study can be to favour nuclear long distance energy because of its wide application range in the whole heat market. But there is also the competition with combined heat and power generation on fossil basis, as practised in many industrial companies. As a result of a regional analysis of the area Aachen-Moenchengladbach-Koeln, the cost advantages of the nuclear long distance energy as a parameter of current prices are confirmed. Nuclear long distance energy, in combination with the high temperature reactor and a developed technic of catalysts up to temperatures of 900 K, is an energy source which will be independant of regional necessities, secure, non pollutant and economic. (orig.) [de

  3. New frontiers in nuclear structure studies

    International Nuclear Information System (INIS)

    Zwarts, D.; Walet, N.R.; Wolters, A.A.; Glaudemans, P.W.M.; VandeGraff, R.J.

    1985-01-01

    The need to go to larger model spaces for more detailed studies of the atomic nucleus has led to the introduction of the supercomputer to nuclear physics. In this report a brief survey of the nuclear shell model is presented and the performance of some of the relevant programs on different computer systems is compared

  4. Study towards diversity oriented synthesis of optically active ...

    Indian Academy of Sciences (India)

    oxidation procedures, all the reactions were carried out either in argon or nitrogen .... ring solution of alcohol 9a (300mg, 0.70mmol) dis- solved in 20 mL of DCM ..... In summary, diversity-oriented approach for the synthe- sis of optically active, ...

  5. Real-time object-oriented programming: studies and proposals

    International Nuclear Information System (INIS)

    Fouquier, Gilles

    1996-01-01

    This thesis contributes to the introduction of real-time features in object-oriented programming. Object-oriented programming favours modularity and reusability. Therefore, its application to real-time introduces many theoretical and conceptual problems. To deal with these problems, a new real-time object-oriented programming model is presented. This model is based on the active object model which allows concurrence and maintains the encapsulation property. The real-time aspect is treated by replacing the concept of task by the concept of method processing and by associating a real-time constraint to each message (priority or deadline). The set of all the running methods is scheduled. This model, called ATOME, contains several sub-models to deal with the usual concurrence control integrating their priority and deadline processing. The classical HPF and EDF scheduling avoid priority or deadline inversion. This model and its variants are new proposals to program real-time applications in the object-oriented way, therefore easing reusability and code writing. The feasibility of this approach is demonstrated by extending and existing active object-based language to real-time, in using the rules defined in the ATOME model. (author) [fr

  6. Business intelligence and service-oriented architecture: a Delphi study

    NARCIS (Netherlands)

    Mueller, Roland; Linders, Stefan; Ferreira Pires, Luis

    Although service-oriented architecture (SOA) is becoming increasingly popular in enterprise application rchitectures, little is known about how SOA could support and influence the use and implementation of business intelligence (BI). We applied the Delphi method in order to identify opportunities

  7. Electromagnetic studies of nuclear structure and reactions

    Energy Technology Data Exchange (ETDEWEB)

    Hersman, F.W.; Dawson, J.F.; Heisenberg, J.H.; Calarco, J.R.

    1990-06-01

    This report contains papers on the following topics: giant resonance studies; deep inelastic scattering studies; high resolution nuclear structure work; and relativistic RPA; and field theory in the Schroedinger Representation.

  8. Electromagnetic studies of nuclear structure and reactions

    International Nuclear Information System (INIS)

    Hersman, F.W.; Dawson, J.F.; Heisenberg, J.H.; Calarco, J.R.

    1990-06-01

    This report contains papers on the following topics: giant resonance studies; deep inelastic scattering studies; high resolution nuclear structure work; and relativistic RPA; and field theory in the Schroedinger Representation

  9. Improvised Nuclear Device Case Study

    Energy Technology Data Exchange (ETDEWEB)

    Buddemeier, Brooke [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Suski, Nancy [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2011-07-12

    Reducing the casualties of catastrophic terrorist attacks requires an understanding of weapons of mass destruction (WMD) effects, infrastructure damage, atmospheric dispersion, and health effects. The Federal Planning Guidance for Response to a Nuclear Detonation provides the strategy for response to an improvised nuclear device (IND) detonation. The supporting science developed by national laboratories and other technical organizations for this document significantly improves our understanding of the hazards posed by such an event. Detailed fallout predictions from the advanced suite of three-dimensional meteorology and plume/fallout models developed at Lawrence Livermore National Laboratory, including extensive global geographical and real-time meteorological databases to support model calculations, are a key part of response planning. This presentation describes the methodology and results to date, including visualization aids developed for response organizations. These products have greatly enhanced the community planning process through first-person points of view and description of the dynamic nature of the event.

  10. Nuclear reaction studies: Progress report

    International Nuclear Information System (INIS)

    Thaler, R.M.

    1986-01-01

    A principal focus of recent research has been the three-body problem. A great deal of effort has been devoted to the creation of a computer program to calculate physical observables in the three body problem below 1 GeV. Successful results have been obtained for the triton. Additional work concerns scattering of K + mesons from nuclei, antinucleon physics, relativistic nuclear physics and inclusive reactions

  11. A microstructural study of dynamic crack propagation in nuclear graphites

    International Nuclear Information System (INIS)

    Burchell, T.D.; McEnaney, B.; Tucker, M.O.; Rose, A.P.G.

    1986-01-01

    This paper reports a new microstructural study of dynamic crack propagation in three nuclear graphites: (i) PGA, the moderator material in UK Magnox reactors; (ii) IMl-24, the moderator material in UK Advanced gas cooled reactors (AGR); and (iii) a pitch coke graphite, which is used in the fabrication of AGR fuel sleeves. The fracture mechanisms in nuclear graphites are initiated by microcrack formation at low stresses. Typically, microcracks form in regions of well-aligned binder or at favourably-oriented pores, where stress is concentrated. With increasing applied loads, microcracks propagate taking advantage of easy cleavage paths or linking with pores. Eventually, coalescence of such cracks and inherent porosity produces a crack of critical length for fast fracture. (orig./MM)

  12. A study on the nuclear technology policy

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Maeng Ho; Ham, C. H.; Kim, H. J.; Chung, W. S.; Lee, T. J.; Lee, B. O.; Yun, S. W.; Choi, Y. M.; Eom, T. Y

    1998-01-01

    This study analyzed the major issues as the research activities for the support of establishment and implementation of national policy. The analyses were focused on the recommendations of the responsive direction of national policy in positive and effective manners in accordance with the changes of international nuclear affairs. This study also analyzed the creation of environmental foundation for effective implementation of the national policy and national R and D investment such as securing national consensus and openings of policy information to the public. The major results of the role and position of nuclear policy, trends of nuclear policy and nuclear R and D activities of USA, France, Japan, Asian developing countries etc. and international trends of small- and medium-sized reactor as well as spin-offs of nuclear R and D activities, were analyzed. (author). 66 refs., 27 tabs., 15 figs

  13. Characterization of analysis activity in the development of object-oriented software. Application to a examination system in nuclear medicine

    International Nuclear Information System (INIS)

    Bayas, Marcos Raul Cordova.

    1995-01-01

    The object-oriented approach, formerly proposed as an alternative to conventional software coding techniques, has expanded its scope to other phases in software development, including the analysis phase. This work discusses basic concepts and major object oriented analysis methods, drawing comparisons with structured analysis, which has been the dominant paradigm in systems analysis. The comparison is based on three interdependent system aspects, that must be specified during the analysis phase: data, control and functionality. The specification of a radioisotope examination archive system is presented as a case study. (author). 45 refs., 87 figs., 1 tab

  14. Advanced passive PWR AC-600: Development orientation of nuclear power reactors in China for the next century

    International Nuclear Information System (INIS)

    Huang Xueqing; Zhang Senru

    1999-01-01

    Based on Qinshan II Nuclear Power Plant that is designed and constructed by way of self-reliance, China has developed advanced passive PWR AC-600. The design concept of AC-600 not only takes the real situation of China into consideration, but also follows the developing trend of nuclear power in the world. The design of AC-600 has the following technical characteristics: Advanced reactor: 18-24 month fuel cycle, low neutron leakage, low power density of the core, no any penetration in the RPV below the level of the reactor coolant nozzles; Passive safety systems: passive emergency residual heat removal system, passive-active safety injection system, passive containment cooling system and main control room habitability system; System simplified and the number of components reduced; Digital I and C; Modular construction. AC-600 inherits the proven technology China has mastered and used in Qirtshan 11, and absorbs advanced international design concepts, but it also has a distinctive characteristic of bringing forth new ideas independently. It is suited to Chinese conditions and therefore is expected to become an orientation of nuclear power development by self-reliance in China for the next century. (author)

  15. A Study on Nuclear Technology Policy

    International Nuclear Information System (INIS)

    Oh, K. B.; Chung, W. S.; Lee, T. J.; Yun, S. W.; Jeong, Ik; Lee, J. H.

    2006-02-01

    This study was conducted as a part of institutional activities of KAERI, and the objective of the study is to survey and analyze the change of international environment in nuclear use and research and development environment, and to propose systematic alternatives on technology policy for efficiency and effectiveness of research and development through national R and D program while timely responding to the environmental change in local and global sense. In the investigation and analysis of international environmental and technological change 1. Viability of Nuclear Renaissance 2. Recent of Nuclear Technology Policy in Japan 3. Collaboration for Advanced Nuclear Technologies in GIF, INPRO and INERI 4. Nuclear Energy Utilization and Development in Europe. In the evaluation of nuclear technology and sustainable development from the point of views of environmental change 5. External Cost of Environmental Impact in Electric Power Sector 6. Nuclear Technology Development Direction Considering Changes of the Science and Technology Policy Environment 7. Nuclear Energy Development Strategy for a Sustainable National Energy Supply

  16. A Study on Nuclear Technology Policy

    Energy Technology Data Exchange (ETDEWEB)

    Oh, K B; Chung, W S; Lee, T J; Yun, S W; Jeong, Ik; Lee, J H

    2006-02-15

    This study was conducted as a part of institutional activities of KAERI, and the objective of the study is to survey and analyze the change of international environment in nuclear use and research and development environment, and to propose systematic alternatives on technology policy for efficiency and effectiveness of research and development through national R and D program while timely responding to the environmental change in local and global sense. In the investigation and analysis of international environmental and technological change 1. Viability of Nuclear Renaissance 2. Recent of Nuclear Technology Policy in Japan 3. Collaboration for Advanced Nuclear Technologies in GIF, INPRO and INERI 4. Nuclear Energy Utilization and Development in Europe. In the evaluation of nuclear technology and sustainable development from the point of views of environmental change 5. External Cost of Environmental Impact in Electric Power Sector 6. Nuclear Technology Development Direction Considering Changes of the Science and Technology Policy Environment 7. Nuclear Energy Development Strategy for a Sustainable National Energy Supply.

  17. Theoretical studies in nuclear reactions and nuclear structure: Progress report

    International Nuclear Information System (INIS)

    Griffin, J.J.

    1988-09-01

    This report discusses topics in nuclear theory. These general topics are: Quark physics, Quantum field theory, Relativistic nuclear physics, Nuclear dynamics, and Few-body problems and nonrelativistic methods

  18. Molecular phylogeny of the Oriental butterfly genus Arhopala (Lycaenidae, Theclinae) inferred from mitochondrial and nuclear genes

    NARCIS (Netherlands)

    Megens, H.J.W.C.; Nes, Van W.J.; Moorsel, van C.H.M.; Pierce, N.E.; Jong, de R.

    2004-01-01

    We present a phylogeny for a selection of species of the butterfly genus Arhopala Boisduval, 1832 based on molecular characters. We sequenced 1778 bases of the mitochondrial genes Cytochrome Oxidase 1 and 2 including tRNALeu, and a 393-bp fragment of the nuclear wingless gene for a total of 42

  19. Control oriented modeling and simulation of the sawtooth instability in nuclear fusion tokamak plasmas

    NARCIS (Netherlands)

    Witvoet, G.; Westerhof, E.; Steinbuch, M.; Doelman, N.J.; Baar, de M.R.

    2009-01-01

    Tokamak plasmas in nuclear fusion are subject to various instabilities. A clear example is the sawtooth instability, which has both positive and negative effects on the plasma. To optimize between these effects control of the sawtooth period is necessary. This paper presents a simple control

  20. Introduction to Nuclear Fusion Power and the Design of Fusion Reactors. An Issue-Oriented Module.

    Science.gov (United States)

    Fillo, J. A.

    This three-part module focuses on the principles of nuclear fusion and on the likely nature and components of a controlled-fusion power reactor. The physical conditions for a net energy release from fusion and two approaches (magnetic and inertial confinement) which are being developed to achieve this goal are described. Safety issues associated…

  1. Energy and nuclear power planning studies

    International Nuclear Information System (INIS)

    Bennett, L.L.; Molina, P.E.; Mueller, T.

    1990-01-01

    The article focuses on the procedures established by the IAEA for providing assistance to international Member States in conducting studies for the analysis of the economic viability of a nuclear power programme. This article specifically reviews energy and nuclear power planning (ENPP) studies in Algeria, Jordan, and Thailand. It highlights major accomplishments in the context of study objectives and organizations, and the principal lessons learned in the process. 4 figs, 1 tab

  2. Knowledge-oriented strategies in the metal industry (empirical studies

    Directory of Open Access Journals (Sweden)

    A. Krawczyk-Sołtys

    2016-07-01

    Full Text Available The aim of this article is an attempt to determine which knowledge-oriented strategies can give metal industry enterprises the best results in achieving and maintaining a competitive advantage. To determine which of these discussed in the literature and implemented in various organizations knowledge-oriented strategies may prove to be the most effective in the metal industry, empirical research has begun. A chosen strategy of knowledge management and supporting strategies are the basis of a choice of methods and means of intended implementation. The choice of a specific knowledge management strategy may also result in the need for changes in an organization, particularly in an information system, internal communication, work organization and human resource management.

  3. Probability shapes perceptual precision: A study in orientation estimation.

    Science.gov (United States)

    Jabar, Syaheed B; Anderson, Britt

    2015-12-01

    Probability is known to affect perceptual estimations, but an understanding of mechanisms is lacking. Moving beyond binary classification tasks, we had naive participants report the orientation of briefly viewed gratings where we systematically manipulated contingent probability. Participants rapidly developed faster and more precise estimations for high-probability tilts. The shapes of their error distributions, as indexed by a kurtosis measure, also showed a distortion from Gaussian. This kurtosis metric was robust, capturing probability effects that were graded, contextual, and varying as a function of stimulus orientation. Our data can be understood as a probability-induced reduction in the variability or "shape" of estimation errors, as would be expected if probability affects the perceptual representations. As probability manipulations are an implicit component of many endogenous cuing paradigms, changes at the perceptual level could account for changes in performance that might have traditionally been ascribed to "attention." (c) 2015 APA, all rights reserved).

  4. Field Tested Service Oriented Robotic Architecture: Case Study

    Science.gov (United States)

    Flueckiger, Lorenzo; Utz, Hanz

    2012-01-01

    This paper presents the lessons learned from six years of experiments with planetary rover prototypes running the Service Oriented Robotic Architecture (SORA) developed by the Intelligent Robotics Group (IRG) at NASA Ames Research Center. SORA relies on proven software methods and technologies applied to the robotic world. Based on a Service Oriented Architecture and robust middleware, SORA extends its reach beyond the on-board robot controller and supports the full suite of software tools used during mission scenarios from ground control to remote robotic sites. SORA has been field tested in numerous scenarios of robotic lunar and planetary exploration. The results of these high fidelity experiments are illustrated through concrete examples that have shown the benefits of using SORA as well as its limitations.

  5. Origin of studies philosophy at the Universidad de Oriente

    Directory of Open Access Journals (Sweden)

    Adriana Mercedes Ortiz-Blanco

    2016-09-01

    Full Text Available It is analyzed the function of the Philosophy of the Education and their practical application in the foundation process and  development of the Universidad de Oriente, the employment of new methods in the development of the educational process, putting like center to the students stimulating the free development of the thought, combining the scientific formation harmoniously with the formation of values, making valid the motto of "Science and it Makes aware".

  6. A study on nuclear technology policy

    International Nuclear Information System (INIS)

    Kim, H. J.; Oh, K. B.; Lee, K. S.; Chung, W. S.; Lee, T. J.; Yun, S. W.; Jeong, I.

    2004-01-01

    This study was conducted as a part of institutional activities of KAERI, and the objective of the study is to survey and analyze the change of international environment in nuclear use and research and development environment, and to propose systematic alternatives on technology policy for efficiency and effectiveness of research and development through national R and D program while timely responding to the environmental change in local and global sense. Acknowledging the importance of the relationship between the external environment and the national nuclear R and D strategic planning, this study focused on the two major subjects: (1) the international environmental and technological change attached to the development of nuclear power; (2) the direction and strategy of nuclear R and D to improve effectiveness through national R and D programs as role of electricity in the future society, strategic environment of nuclear use and R and D in the future society, energy environment and nuclear technology development scenario in the future, strategic study on future vision of KAERI and technological road-mapping of national nuclear R and D for enhancing competitiveness

  7. Nuclear power planning study for Saudi Arabia

    International Nuclear Information System (INIS)

    Kutbi, I.I.; Matin, Abdul.

    1984-05-01

    The prospects of application of nuclear energy for production of electricity and desalinated water in the Kingdom are evaluated. General economic development of the country and data on reserves, production and consumption of oil and natural gas are reviewed. Electrical power system is described with data on production and consumption. Estimates of future power demand are made using Aoki method. Costs of production of electricity from 600 MW, 900 MW and 1200 MW nuclear and oil-fired power plants are calculated along with the costs of production of desalinated water from dual purpose nuclear and oil-fired plants. The economic analysis indicates that the cost of production of electricity and desalinated water are in general cheaper from the nuclear power plants. Suggests consideration of the use of nuclear energy for production of both electricity and desalinated water from 1415 H. Further detailed studies and prepartory organizational steps in this direction are outlined. 38 Ref

  8. Nuclear spectroscopic studies. Progress report

    International Nuclear Information System (INIS)

    Bingham, C.R.; Riedinger, L.L.; Sorensen, S.P.

    1996-01-01

    This report describes progress in the experimental nuclear physics program of the University of Tennessee, Knoxville. It presents findings related to properties of high-spin states, low-energy levels of nuclei far from stability, and high-energy heavy-ion physics, as well as a brief description of the Joint Institute of Heavy Ion Research (a collaboration between the University of Tennessee, Vanderbilt University, and Oak Ridge National Laboratory) and its activities (particularly those of the last few years), and a list of publications. 89 refs., 18 figs., 5 tabs

  9. Hospital organizational response to the nuclear accident at Three Mile Island: implications for future-oriented disaster planning

    International Nuclear Information System (INIS)

    Maxwell, C.

    1982-01-01

    The 1979 nuclear accident at Three Mile Island (TMI) near Harrisburg, Pennsylvania, caused severe organizational problems for neighboring health care institutions. Dauphin County, just north of TMI, contained four hospitals ranging in distance from 9.5 to 13.5 miles from the stricken plant. Crash plans put into effect within 48 hours of the initial incident successfully reduced hospital census to below 50 per cent of capacity, but retained bedridden and critically ill patients within the risk-zone. No plans existed for area-wide evacuation of hospitalized patients. Future-oriented disaster planning should include resource files of host institution bed capacity and transportation capabilities for the crash evacuation of hospitalized patients during non-traditional disasters

  10. Quality factors in the life cycle of software oriented to safety systems in nuclear power plants

    International Nuclear Information System (INIS)

    Nunez McLeod, J.E.; Rivera, S.S.

    1997-01-01

    The inclusion of software in safety related systems for nuclear power plants, makes it necessary to include the software quality assurance concept. The software quality can be defined as the adjustment degree between the software and the specified requirements and user expectations. To guarantee a certain software quality level it is necessary to make a systematic and planned set of tasks, that constitute a software quality guaranty plan. The application of such a plan involves activities that should be performed all along the software life cycle, and that can be evaluated through the so called quality factors, due to the fact that the quality itself cannot be directly measured, but indirectly as some of it manifestations. In this work, a software life cycle model is proposed, for nuclear power plant safety related systems. A set os software quality factors is also proposed , with its corresponding classification according to the proposed model. (author) [es

  11. Strategically oriented project management of the decommissioning of nuclear power plants

    International Nuclear Information System (INIS)

    Kemmeter, Sascha; Woempener, Andreas

    2013-01-01

    Due to the politically induced change of the energy sector in Germany, the operators of nuclear power plants had to react and to deal with completely new conditions concerning the decommissioning of their plants on short notice. Therefore the operators have to devise new strategies for controlling their decommissioning and dismantling projects in a short amount of time and most often similarly for several plants. Two fundamental procedures are possible for the successful controlling of these dismantling projects: a centralized or a decentralized management organization. How these project control processes can be realized in an optimal way, is, next to other economic specifications of the dismantling of nuclear power plants, the topic of a new research project of the Chair of Management Accounting at the University Duisburg-Essen. In that process, results and experiences from other research and practical projects concerning general large-scale projects are being used. Selected findings have been compiled and are being discussed in this paper. (orig.)

  12. Safety problems, symptomatic oriented accident regulations, influence of nuclear energetic on ecology of the Slovak Republic

    International Nuclear Information System (INIS)

    Palenikova, M.

    2002-01-01

    IAEA initiated in 1990 the program on help of the countries of Eastern Europe and of the former Soviet Union at evaluating of the safety of their first generation nuclear power reactors of the type WWER 440/223. The main aim of this program was to identify the main design and operational safety problems, to determine international consensus on priorities of safety improvements, to provide the help in the assessment of completeness and adequacy of programs of safety improvements: What are the safety problems; What is the safety importance of problems; What is done for prevention from damage of nuclear power plant; and of three barriers: the tasks MOD V-2 NPP; What is done for reducing of damage consequences; PHP, PASS (post-accidental directives and post-accidental monitoring). (author)

  13. Nuclear clustering - a cluster core model study

    International Nuclear Information System (INIS)

    Paul Selvi, G.; Nandhini, N.; Balasubramaniam, M.

    2015-01-01

    Nuclear clustering, similar to other clustering phenomenon in nature is a much warranted study, since it would help us in understanding the nature of binding of the nucleons inside the nucleus, closed shell behaviour when the system is highly deformed, dynamics and structure at extremes. Several models account for the clustering phenomenon of nuclei. We present in this work, a cluster core model study of nuclear clustering in light mass nuclei

  14. Study on nuclear power introduction into Vietnam

    International Nuclear Information System (INIS)

    Vuong Huu Tan

    2000-01-01

    The report presents main results of the study on nuclear power introduction into Vietnam which have been carried out at Vietnam Atomic Energy Commission in collaboration with Ministry of Industry of Vietnam and other countries like Japan, Canada and Korea. The study covers all topics related to the nuclear power introduction into Vietnam such as electricity demands and supply, economics, finance, technology, safety, manpower, site selection etc. (author)

  15. Transitioning from Marketing-Oriented Design to User-Oriented Design: A Case Study

    Science.gov (United States)

    Laster, Shari; Stitz, Tammy; Bove, Frank J.; Wise, Casey

    2011-01-01

    The transition to a new architecture and design for an academic library Web site does not always proceed smoothly. In this case study, a library at a large research university hired an outside Web development contractor to create a new architecture and design for the university's Web site using dotCMS, an open-source content management system. The…

  16. Crystal structure of importin-{alpha} complexed with a classic nuclear localization sequence obtained by oriented peptide library screening

    Energy Technology Data Exchange (ETDEWEB)

    Takeda, A.A.S.; Fontes, M.R.M. [UNESP, Universidade Estadual Paulista, Botucatu, SP (Brazil); Yang, S.N.Y. [University of Melbourne, Melbourne (Australia); Harris, J.M. [Queensland University of Technology, Brisbane (Australia); Jans, D.A. [Monash University, Clayton (Australia); Kobe, B. [University of Queensland, Brisbane, QU (Australia)

    2012-07-01

    Full text: Importin-{alpha} (Imp{alpha}) plays a role in the classical nuclear import pathway, binding to cargo proteins with activities in the nucleus. Different Imp{alpha} paralogs responsible for specific cargos can be found in a single organism. The cargos contain nuclear localization sequences (NLSs), which are characterized by one or two clusters of basic amino acids (monopartite and bipartite NLSs, respectively). In this work we present the crystal structure of Imp{alpha} from M. musculus (residues 70-529, lacking the auto inhibitory domain) bound to a NLS peptide (pepTM). The peptide corresponds to the optimal sequence obtained by an oriented peptide library experiment designed to probe the specificity of the major NLS binding site. The peptide library used five degenerate positions and identified the sequence KKKRR as the optimal sequence for binding to this site for mouse Imp{alpha} (70-529). The protein was obtained using an E. coli expression system and purified by affinity chromatography followed by an ion exchange chromatography. A single crystal of Imp{alpha} -pepTM complex was grown by the hanging drop method. The data were collected using the Synchrotron Radiation Source LNLS, Brazil and processed to 2.3. Molecular replacement techniques were used to determine the crystal structure. Electron density corresponding to the peptide was present in both major and minor binding sites The peptide is bound to Imp{alpha} similar as the simian virus 40 (SV40) large tumour (T)-antigen NLS. Binding assays confirmed that the peptide bound to Imp{alpha} with low nM affinities. This is the first time that structural information has been linked to an oriented peptide library screening approach for importin-{alpha}; the results will contribute to understanding of the sequence determinants of classical NLSs, and may help identify as yet unidentified classical NLSs in novel proteins. (author)

  17. Nuclear fuel assembly grid sleeve/guide thimble bulge orientation gage and inspection method

    International Nuclear Information System (INIS)

    Widener, W.H.

    1988-01-01

    This patent describes a method of inspecting a fuel assembly to determine the orientation of externally-projecting mated bulges connecting a grid sleeve to a guide thimble of the assembly, the method comprising the steps of: (a) inserting a radially-expandable tubular member within the guide thimble, the tubular member having externally-projecting embossments thereon spaced circumferentially from one another about the tubular member, the embossments being the same in number as the bulges of the guide thimble and configured to fit therewithin; (b) axially moving an elongated expansion member, which extends through and rotatably mounts the tubular member, relative to the tubular member from a first position in which the expansion member permits inward contraction of the tubular member and displacement of embossments thereon away from the interior of the guide thimble bulges for removing the embossments from registry therewith and a second position in which the expansion member produces radial expansion of the tubular member and displacement of the embossments thereon toward the interior of the guide thimble bulges for placing the embossments in registry therewith; (c) rotating the tubular member relative to the expansion member so as to bring the embossments on the tubular member into alignment with the guide thimble bulges as the embossments on the tubular member are being displaced toward and into registry with the interior of the bulges; and (d) responsive to rotation of the tubular member away from a reference position, providing an indication of the orientation of the guide thimble bulges relative to a reference point upon displacement of the embossments into registry therewith

  18. Study of information-orientation carry-out plan in energy sector

    Energy Technology Data Exchange (ETDEWEB)

    Kang, T W [Korea Energy Economics Institute, Euiwang (Korea, Republic of)

    1998-04-01

    Carrying out an information-orientation plan in the energy sector is indispensable if Korea is to survive in this unlimited competition age and global management system. It is also for maximizing the management efficiency of national energy resources as well as increasing the development of related industries and national welfare. The management of the energy resources sector of Korea, which is becoming diversified escaping from the past simple quantitative management of supplier-orientation, requires versatile and ample high-class information management system and high-level decision support system. In order to satisfy these requests, this study investigated and analyzed overall policies of the energy sector for carrying out information-orientation, neighborhood environment, organizational chart, information transfer method, the current condition of information-orientation, problems and improvements, demand of information-orientation of the future, and also reviewed the information-orientation status of advanced countries. Based on these, an information-orientation carryout plan in the energy sector is broken into three stages of `establishment of information transfer system`, `development of database`, and `establishment of decision support system` and presented per detailed work. It advised manpower, equipment and budget implementation plan, and a development schedule plan required for carrying out information-orientation as well as overall environmental build-up, and policy recommendation for the successful implementation of information-orientation. 24 refs., 27 figs., 15 tabs.

  19. How to implement process-oriented care: a case study on the implementation of process-oriented in-hospital stroke care.

    NARCIS (Netherlands)

    Vos, L.; Oostenbrugge, R.J. van; Limburg, M.; Merode, G.G. van; Groothuis, S.

    2009-01-01

    Dutch hospitals are in the midst of a transition towards process-oriented organisation to realise optimal and undisturbed care processes. Between 2004 and 2007, the University Hospital of Maastricht conducted a case study implementing process-oriented in-hospital stroke unit care. The case study

  20. Radiation damage studies of nuclear structural materials

    International Nuclear Information System (INIS)

    Barat, P.

    2012-01-01

    Maximum utilization of fuel in nuclear reactors is one of the important aspects for operating them economically. The main hindrance to achieve this higher burnups of nuclear fuel for the nuclear reactors is the possibility of the failure of the metallic core components during their operation. Thus, the study of the cause of the possibility of failure of these metallic structural materials of nuclear reactors during full power operation due to radiation damage, suffered inside the reactor core, is an important field of studies bearing the basic to industrial scientific views.The variation of the microstructure of the metallic core components of the nuclear reactors due to radiation damage causes enormous variation in the structure and mechanical properties. A firm understanding of this variation of the mechanical properties with the variation of microstructure will serve as a guide for creating new, more radiation-tolerant materials. In our centre we have irradiated structural materials of Indian nuclear reactors by charged particles from accelerator to generate radiation damage and studied the some aspects of the variation of microstructure by X-ray diffraction studies. Results achieved in this regards, will be presented. (author)

  1. Nuclear Power Plant Lifetime Management Study (I)

    Energy Technology Data Exchange (ETDEWEB)

    Hong, Sung Yull; Jeong, Ill Seok; Jang, Chang Heui; Song, Taek Ho; Song, Woo Young [Korea Electric Power Research Institute, Taejon (Korea, Republic of); Jin, Tae Eun [Korea Power Engineering Company Consulting and Architecture Engineers, (Korea, Republic of); Kim, Woo Chul [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1997-12-31

    As the operation-year of nuclear power plant increases and finding sites for new nuclear power plant becomes harder, a comprehensive and systematic nuclear plant lifetime management(PLIM) program including life extension has to be established for stable and safe supply of electricity. A feasibility study was conducted to systematically evaluate technical, economic and regulatory aspect of plant lifetime managements and plant life extension for Kori-1 nuclear power plant. For technical evaluation of nuclear power plant, 13 major components were selected for lifetime evaluation by screening system. structure, and components(SSCs) of the plant. It was found that except reactor pressure vessel, which needs detailed integrity analysis, and low pressure turbine, which is scheduled to be replaced, 11 out of 13 major components have sufficient service life, for more than 40 years. Because domestic rules and regulations related to license renewal has not yet been written, review on the regulatory aspect of life extensions was conducted using US NRC rules and regulations. A cooperative effort with nuclear regulatory body is needed for early completion of license renewal rules and regulations. For economic evaluation of plant lifetime extension, a computer program was developed and used. It was found that 10 to 20 year of extension operation of Kori-1 nuclear power plant was proved. Based on the results, next phase of plant lifetime management program for detailed lifetime evaluation and presenting detailed implementation schedule for plant refurbishment for lifetime extension should be followed. (author). 74 refs., figs.

  2. Nuclear Power Plant Lifetime Management Study (I)

    Energy Technology Data Exchange (ETDEWEB)

    Hong, Sung Yull; Jeong, Ill Seok; Jang, Chang Heui; Song, Taek Ho; Song, Woo Young [Korea Electric Power Research Institute, Taejon (Korea, Republic of); Jin, Tae Eun [Korea Power Engineering Company Consulting and Architecture Engineers, (Korea, Republic of); Kim, Woo Chul [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1996-12-31

    As the operation-year of nuclear power plant increases and finding sites for new nuclear power plant becomes harder, a comprehensive and systematic nuclear plant lifetime management(PLIM) program including life extension has to be established for stable and safe supply of electricity. A feasibility study was conducted to systematically evaluate technical, economic and regulatory aspect of plant lifetime managements and plant life extension for Kori-1 nuclear power plant. For technical evaluation of nuclear power plant, 13 major components were selected for lifetime evaluation by screening system. structure, and components(SSCs) of the plant. It was found that except reactor pressure vessel, which needs detailed integrity analysis, and low pressure turbine, which is scheduled to be replaced, 11 out of 13 major components have sufficient service life, for more than 40 years. Because domestic rules and regulations related to license renewal has not yet been written, review on the regulatory aspect of life extensions was conducted using US NRC rules and regulations. A cooperative effort with nuclear regulatory body is needed for early completion of license renewal rules and regulations. For economic evaluation of plant lifetime extension, a computer program was developed and used. It was found that 10 to 20 year of extension operation of Kori-1 nuclear power plant was proved. Based on the results, next phase of plant lifetime management program for detailed lifetime evaluation and presenting detailed implementation schedule for plant refurbishment for lifetime extension should be followed. (author). 74 refs., figs.

  3. Hegemonic Masculinity in Sport Education: Case Studies of Experienced In-Service Teachers with Teaching Orientations

    Science.gov (United States)

    Chen, YuChun; Curtner-Smith, Matthew

    2013-01-01

    Research has revealed that while pre-service teachers (PTs) with coaching orientations reinforce sexism and masculine bias, those with teaching orientations combat and reject it. The purpose of this study was to examine four sport education (SE) seasons taught by two experienced in-service teachers for the presence or absence of sexism and…

  4. Chinese Students' Goal Orientation in English Learning: A Study Based on Autonomous Inquiry Model

    Science.gov (United States)

    Zhang, Jianfeng

    2014-01-01

    Goal orientation is a kind of theory of learning motivation, which helps learners to develop their capability by emphasis on new techniques acquiring and environment adapting. In this study, based on the autonomous inquiry model, the construction of Chinese students' goal orientations in English learning are summarized according to the data…

  5. Assessment-Oriented Learning and Adult Work--An International Study.

    Science.gov (United States)

    Higher Education in Europe, 1984

    1984-01-01

    A recently begun longitudinal study of a trend toward credentialism or qualifications-orientation among adult students in six countries (India, Japan, Malaysia, Nigeria, Sri Lanka, and England) is described. The development of measures of student learning orientations for different cultures is discussed. (MSE)

  6. Developing Practice Oriented Undergraduate Courses in a Quality Framework. A Case Study: Bachelor of Event Management

    Science.gov (United States)

    Whitelaw, Paul A.; Wrathall, Jeffrey

    2015-01-01

    Purpose: The purpose of this paper is to reflect upon the stakeholder, scholarly, academic and jurisdictional influences on course development for a vocationally oriented bachelor's degree. Design/methodology/approach: This paper takes the form of a case study. Findings: Vocationally oriented bachelor's courses can be developed, especially when…

  7. Learner Behaviour in a MOOC Practice-Oriented Course: In Empirical Study Integrating TAM and TPB

    Science.gov (United States)

    Yang, Hsi-Hsun; Su, Chung-Ho

    2017-01-01

    Few practice-oriented courses are currently integrated into online learning platforms, such as OpenCourseWare, Khan Academy, and Massive Open Online Courses (MOOCs). It is worthwhile to explore how learners respond to information technology and new teaching methods when practice-oriented course are placed online. Therefore, this study probes…

  8. Physical principles underlying the experimental methods for studying the orientational order of liquid crystals

    International Nuclear Information System (INIS)

    Limmer, S.

    1989-01-01

    The basic physical principles underlying different experimental methods frequently used for the determination of orientational order parameters of liquid crystals are reviewed. The methods that are dealt with here include the anisotropy of the diamagnetic susceptibility, birefringence, linear dichroism, Raman scattering, fluorescence depolarization, electron paramagnetic resonance (EPR), and nuclear magnetic resonance (NMR). The fundamental assertions that can be obtained by the different methods as well as their advantages, drawbacks and limitations are inspected. Typical sources of uncertainties and inaccuracies are discussed. To quantitatively evaluate the experimental data with reference to the orientational order the general tensor formalism developed by Schmiedel was employed throughout according to which the order matrix comprises 25 real elements yet. Within this context the interplay of orientational ordering and molecular conformation is scrutinized. (author)

  9. Theoretical studies in nuclear reaction and nuclear structure. Final report, January 1, 1975--June 30, 1976

    International Nuclear Information System (INIS)

    Banerjee, M.K.; Griffin, J.J.

    1977-07-01

    Progress in theoretical research is reported under the following readings: (1) few nuclear reactions, Eikonal approximations, and optical models; (2) pion reactions; (3) nuclear structure by reaction studies; (4) nuclear dynamics

  10. [Studies in intermediate energy nuclear physics

    International Nuclear Information System (INIS)

    Peterson, R.J.

    1993-01-01

    This report summarizes work carried out between October 1, 1992 and September 30, 1993 at the Nuclear Physics Laboratory of the University of Colorado, Boulder. The experimental program in intermediate-energy nuclear physics is very broadly based; it includes pion-nucleon and pion-nucleus studies at LAMPF and TRIUMF, kaon-nucleus scattering at the AGS, and equipment development for experiments at the next generation of accelerator facilities

  11. Study on HVAC system in nuclear facility

    International Nuclear Information System (INIS)

    Baeg, S. Y.; Song, W. S.; Oh, Y. O.; Ju, Y. S.; Hong, K. P.

    2003-01-01

    Heating, Ventilation and Air Conditioning (HVAC) system in nuclear facility should be equipped and constructed more stable and allowable than that in common facility. The purpose of HVAC system is the maintenance of optimum working environment, the protection of worker against a contaminated air and the prevention of atmospheric contamination due to an outward ventilation, etc.. The basic scheme of a safety operation of nuclear facility is to prevent the atmospheric contamination even in low level. The adaptability of HVAC system which is in operation. In this study, the design requirements of HVAC system in nuclear facility and the HVAC systems in foreign countries are reviewed, and the results can be utilized in the design of HVAC system in nuclear facility

  12. A Study on the Nuclear Foreign Policy

    International Nuclear Information System (INIS)

    Yang, Maeng Ho; Oh, K. B.; Lee, H. M.; Lee, B. W.; Ko, H. S.; Ryu, J. S.

    2004-12-01

    It is of the utmost importance in the peaceful use and development of nuclear energy to respond in a timely manner to the changes of international nuclear communities. This study were carried focused on the trends of international movements related to nuclear non-proliferation regime and major trends in the international bi- or multi-lateral technical cooperation activities. This study investigates the major changes of international technical cooperation focusing on nuclear functional organizations, IAEA and OECD/NEA which become competent and important in the international technical cooperation. 9.11 terror and international illegal trafficking of A. Q. Khan network caused the strengthening of international nonproliferation regimes and international efforts and measures against threat of nuclear terror and this movement will kept in the international communities afterwards with GTRI, G8 action plan, UN resolution of WMD and ratification and application of additional protocol of IAEA safeguards agreement into member countries. Upgrade of nuclear diplomatic and technical networks and activities are required to secure the national rights and dignity in the international communities in effective and systematic manners through the enlarged participation and contribution of the national experts to working groups activities of IAEA and OECD/NEA together

  13. Lateritinga project: a geochemical orientation study for Amazon lateritic

    International Nuclear Information System (INIS)

    Costa, M.L. da

    1990-01-01

    The aim of this project is the development of systematic geochemical orientation survey in lateritic weathered terrain, like those form Amazon Region. The main selected targets (sheets) are: Turiacu, Cajuapara and Serra dos Carajas, with 690 samples collected (soils and lateritic rocks). For the Aurizona-Serra do Pirocaua target (Turiacu sheet), within the purpose of this work, 49 samples were collected in a 100x 200m regular grid. From all samples the fraction minor than 200 mesh was taken to analyses (by XRF, AA, OES, ICP and fire assay) for SiO sub(2), Fe sub(2) O sub(3), TiO sub(2), P sub(2) O sub(5), Sr, Ba, Y, Nb, Zr, Ga, Sc, Ni, Co, Cr, Cu, Mn, V, As, Bi, Pt, Pd, Th, Au and REE, as well for their mineralogy by XRD. The chemical results were submitted to statistical treatment with the Geoquant-software for IBM-compatible microcomputer. (author)

  14. Gender Variance in Childhood and Sexual Orientation in Adulthood: A Prospective Study

    NARCIS (Netherlands)

    Steensma, T.D.; van den Ende, J..; Verhulst, F.C.; Cohen-Kettenis, P.T.

    2013-01-01

    Introduction. Several retrospective and prospective studies have reported on the association between childhood gender variance and sexual orientation and gender discomfort in adulthood. In most of the retrospective studies, samples were drawn from the general population. The samples in the

  15. Survey of Swiss nuclear's cost study 2016

    International Nuclear Information System (INIS)

    Alt, Stefan; Ustohalova, Veronika

    2017-01-01

    The report discusses the Swiss nuclear cost study 2016 concerning the following issues: evaluation of the aspects of the cost study: cost structure, cost classification and risk provision, additional payment liability, option of lifetime extension for Swiss nuclear power plants; specific indications on the report ''cost study 2016 (KS16) - estimation of the decommissioning cost of Swiss nuclear power plants'': decommissioning costs in Germany, France and the USA, indexing the Swiss cost estimation for decommissioning cost, impact factors on the decommissioning costs; specific indications on the report ''cost study 2016 (KS16) - estimation of the disposal cost - interim storage, transport, containers and reprocessing''; specific indications on the report ''cost studies (KS16) - estimation of disposal costs - geological deep disposal'': time scale and costs incurred, political/social risks, retrievability, comparison with other mining costs.

  16. Nuclear raw materials prospection mission 1965 report to the Government of the Republic Oriental del Uruguay

    Energy Technology Data Exchange (ETDEWEB)

    Cameron, J

    1966-07-01

    A preliminary reconnaissance survey of Uruguay for nuclear raw materials has been completed. Over 7.700 kilometers have been surveyed by car borne scintillometer and 112 radioactive anomalies have been discovered. Favourable areas with high incidence of anomalies and indications of uranium occurrences have been de-limited in the Minas- Aigua, Valentines-Treinta y Tres, Las Canas, Minas de Corrales and Melo areas. A possibly important indication of uranium at Paso de Las Piedras, Department of Durazno, has also 'been discovered by other means.The area investigated only comprises 0.83 of the total area of Uruguay and the high incidence of anomalies discovered and the other indications of uranium within this area are favourable and encouraging factors for further work,.

  17. Orientation leaflet for radiological and nuclear medical examinations. Recommendations of the Radiation Protection Commission (SSK)

    International Nuclear Information System (INIS)

    Gumprecht, D.; Haehnel, S.; Hahn, C.; Heller, H.

    2006-01-01

    The brochure is to help doctors in hospitals as well as private practitioners to select the best suited examination procedures for a given problem and help them to take better care of their patients and reduce their radiation exposure. The criteria are no substitute for the indication required by Section 80 of the Radiation Protection Ordinance and Section 23 of the X-Ray Ordinance, i.e. e. an indication in which the health effect surpasses the health risk resulting from radiation exposure. The brochure informs on the role of X-ray examinations, ultrasonic examinations, computerized tomography, magnetic resonance tomography, nuclear medicine, positron emission tomography and interventional examinations in given cases. The body system approach used in the EU version was retained. (orig.)

  18. Nuclear raw materials prospection mission 1965 report to the Government of the Republic Oriental del Uruguay

    International Nuclear Information System (INIS)

    Cameron, J.

    1966-01-01

    A preliminary reconnaissance survey of Uruguay for nuclear raw materials has been completed. Over 7.700 kilometers have been surveyed by car borne scintillometer and 112 radioactive anomalies have been discovered. Favourable areas with high incidence of anomalies and indications of uranium occurrences have been de-limited in the Minas- Aigua, Valentines-Treinta y Tres, Las Canas, Minas de Corrales and Melo areas. A possibly important indication of uranium at Paso de Las Piedras, Department of Durazno, has also 'been discovered by other means.The area investigated only comprises 0.83 of the total area of Uruguay and the high incidence of anomalies discovered and the other indications of uranium within this area are favourable and encouraging factors for further work,

  19. Nuclear Power Options Viability Study. Volume 3. Nuclear discipline topics

    International Nuclear Information System (INIS)

    Trauger, D.B.; White, J.D.; Bowers, H.I.

    1986-09-01

    Innovative reactor concepts are described and evaluated in accordance with criteria established in the study. The reactors to be studied were chosen on the basis of three ground rules: (1) the potential for commercialization between 2000-2010, (2) economic competiveness with coal-fired plants, and (3) the degree of passive safety in the design. The concepts, classified by coolants, were light water reactors, liquid metal reactors, and high temperature reactors, and most were of modular design. All the concepts appear to be potentially viable in the time frame selected, but the information available is not adequate for a definitive evaluation of their economic competitiveness. This volume primarily reports in greater detail on several topics from the study. These are: Construction, Economics, Regulation, Safety and Economic Risk, Nuclear Waste Transportation and Disposal, and Market Acceptance. Although treated generically, the topics are presented in the context of the reactor concepts of the study

  20. Nuclear Power Options Viability Study. Volume 3. Nuclear discipline topics

    Energy Technology Data Exchange (ETDEWEB)

    Trauger, D B; White, J D; Bowers, H I; Braid, R B; Cantor, R A; Daniels, L; Davis, R M; Delene, J G; Gat, U; Hood, T C

    1986-09-01

    Innovative reactor concepts are described and evaluated in accordance with criteria established in the study. The reactors to be studied were chosen on the basis of three ground rules: (1) the potential for commercialization between 2000-2010, (2) economic competiveness with coal-fired plants, and (3) the degree of passive safety in the design. The concepts, classified by coolants, were light water reactors, liquid metal reactors, and high temperature reactors, and most were of modular design. All the concepts appear to be potentially viable in the time frame selected, but the information available is not adequate for a definitive evaluation of their economic competitiveness. This volume primarily reports in greater detail on several topics from the study. These are: Construction, Economics, Regulation, Safety and Economic Risk, Nuclear Waste Transportation and Disposal, and Market Acceptance. Although treated generically, the topics are presented in the context of the reactor concepts of the study.

  1. Impact of Aspect-Oriented Programming on the Quality of Novices’ Programs: A Comparative Study

    Directory of Open Access Journals (Sweden)

    Marija Katic

    2013-06-01

    Full Text Available Aspect-oriented programming has been introduced in order to increase the modularity of object-oriented programs and is claimed to improve software quality. Although there are various researches on this claim, the question to what extent aspect-oriented programming improves the quality of programs depending on a developer’s experience still remains. The purpose of this study is to investigate whether aspect-oriented programming used by novice programmers improves the quality of programs, in terms of software flexibility and readability (consequently reusability and maintainability as well. As a part of an undergraduate course in programming paradigms and languages, a systematic comparison between students’ object-oriented and aspect-oriented solutions of the same problem was driven. In order to drive this comparison we have established the basis for the development of the new quality assessment model consisting of software metrics for an objective evaluation and student survey for subjective evaluation. The results show that the use of aspect-oriented programming lead to novices’ programs that are easier to change and read (flexible and readable compared to object-oriented programs. What is more, administered survey showed that students perceive their programs as more flexible and readable.

  2. Studies in training nuclear plant personnel

    International Nuclear Information System (INIS)

    Hamlin, K.W.

    1987-01-01

    One of the lessons learned from the Three Mile Island (TMI) accident was that the nuclear industry was ineffective in learning from previous events at other plants. As training programs and methods have improved since TMI, the nuclear industry has searched for effective methods to teach the lessons learned from industry events. The case study method has great potential as a solution. By reviewing actual plant events in detail, trainees can be challenged with solving actual problems. When used in a seminar or discussion format, these case studies also help trainees compare their decision-making processes with other trainees, the instructor, and the personnel involved in the actual case study event

  3. [Study on the causes of sexual orientation of gay].

    Science.gov (United States)

    Zhang, Yan-hui; Bao, Yu-gang; Chen, Hao; Tan, Hong-zhuan

    2013-11-01

    To explore the relevant factors of the causes of sexual orientations of gay. From March to June 2013, 350 gays were recruited from one music bar and three bath centers where gays frequently visited in Changsha city, by proportional stratified sampling method. Meanwhile, another 332 males who identify themselves as non-homosexuality were also recruited considering the composition of ages, gender and educational background. Questionnaire survey was conducted to all the subjects, with 300 effective ones reclaimed. The questionnaire included the general demographic information, traits of character, the condition of foster in childhood and information of family members. The differences between the gays and non-homosexuality groups were analyzed to explore the causes of the sexual orientations of gays. There were statistical significant differences between gays and non- homosexuality group on following indexes (χ(2) was 59.63, 5.90, 16.01, 84.99, 161.57, 77.77, 112.32, 190.84, 30.10 respectively, all of P books or films about homosexual and experienced sexual pleasure from that before the age of 18. The rate of gays on these indexes was separately 62.3% (187/300), 57.7% (173/300) , 62.3% (187/300) , 63.0% (189/300), 67.3% (202/300) , 62.7% (189/300), 68.0% (204/300), 65.0% (195/300) and the rate on these indexes of non-homosexuality group was separately 21.3% (64/300), 28.0% (84/300) , 25.0% (75/300) , 12.7% (38/300), 31.3% (94/300), 17.7% (53/300) , 12.7% (38/300), 42.7% (128/300) . The rate of gays on these factors:the youngest boy in family, had the father or twin brothers who were homosexual or self identified as gay was 62.7% (188/300), 56.0% (168/300) and 62.0% (18/29) respectively; and the rate was 40.7% (122/300), 4.0% (12/300) and 20.0% (2/10), respectively among non-homosexuality group. The difference showed statistical significance (χ(2) was 34.52, 193.14, 5.27 respectively, all of P gays maybe was family relationship, tend and education since childhood

  4. Raw data from orientation studies in crystalline rock areas of the southeastern United States

    International Nuclear Information System (INIS)

    Price, V.

    1976-03-01

    Raw data are presented on orientation studies conducted in crystalline rock areas of the Southeast which were chosen because of published references to uranium mineralization. Preliminary data for four orientation study areas are included. These areas are Lamar County, Georgia; Oconee County, South Carolina; Brush Creek, North Carolina; and North Harper, North Carolina. Sample locality maps, tables of field data, and tables of analytical data are included for each study area

  5. User-oriented information access by information need recontextualisation and articulation. Application in nuclear criticality safety

    International Nuclear Information System (INIS)

    Medini, Lionel

    2001-01-01

    This research thesis addresses the design methodology of a system of access to information which is based on an access to relevant information with respect to user needs. In a first part, the author addresses the various issues related to access to information and to information understanding. The next part addresses the involved methods and tools and presents the operational approach adopted for this research regarding access to information. Different disciplines are addressed (knowledge management, ergonomics and information science) and different technologies are used (W3 and XML, DVP, ActiveX, pdf format and the Adobe suite). In the core chapter, the author reports the design of a LMCE (a multi-user book of electronic knowledge) which allows both hypermedia navigation in knowledge diagrams and a construction of a document query. This design is based on a knowledge-management modelling to define diagrams, on ergonomics modelling for user profile identification, and on information science for a specific indexing of the information system. The prototype can be visualized with a web browser such as Internet Explorer 5. The author reports a first assessment and discusses the contribution of his approach to the problematic of access to information which is to be applied to nuclear criticality safety [fr

  6. Impact studies and nuclear power stations

    International Nuclear Information System (INIS)

    Chambolle, Thierry

    1981-01-01

    Impact studies form an essential part of environmental protection. The impact study discipline has enabled the EDF to have a better understanding of the effects of nuclear power stations on the environment and to remedy them at the project design stage [fr

  7. Theoretical studies in nuclear physics

    International Nuclear Information System (INIS)

    Landau, R.H.; Madsen, V.A.

    1990-01-01

    This report discusses: microscopic imaginary optical potential; isospin effects and charge exchange; multistep inelastic and charge exchange scattering; momentum space proton scattering; pion scattering from nuclei; antiproton studies; antikaons-nucleon interactions; and quantum mechanics. 11 refs

  8. Experimental studies of hydrogen on boron nitride: II. NMR studies of orientational ordering of H2

    International Nuclear Information System (INIS)

    Evans, M.D.; Sullivan, N.S.

    1995-01-01

    The authors report the results of NMR studies of thin films of hydrogen adsorbed on hexagonal boron nitride. Orientational ordering is observed below 1 K but the ordering is not complete, and a clear two-component ordering is observed. Molecules are either (i) almost completely ordered with local order parameters σ=left-angle 1-3/2Jz 2 right-angle clustered close to a maximum value of σ congruent 0.94 (comparable to the values for long range ordering in bulk samples at high ortho concentrations), and (ii) a large fraction of the molecules that remain nearly disordered with σ≤0.25. The degree of orientational ordering depends on the number of hydrogen layers and on the ortho-hydrogen concentration, and these studies indicate that ordering occurs principally in the first four layers closest to the substrate, with weaker orientational ordering in the outer layers near the free surface even at temperatures as low as 210 mK

  9. Moral Orientation and Relationships in School and Adolescent Pro-and Antisocial Behaviors : A Multilevel Study

    NARCIS (Netherlands)

    Wissink, Inge B.; Dekovic, Maja; Stams, Geert-Jan; Asscher, Jessica J.; Rutten, Esther; Zijlstra, Bonne J. H.

    This multilevel study examined the relationships between moral climate factors and prosocial as well as antisocial behaviors inside and outside the school (school misconduct, delinquent behavior, and vandalism). The moral climate factors were punishment- and victim-based moral orientation,

  10. Patient preparation for nuclear medicine studies

    International Nuclear Information System (INIS)

    Stathis, V.J.; Cantrell, D.W.; Cantrell, T.J.

    1987-01-01

    In this chapter are described methods of patient preparation that can favorably affect the outcome of nuclear medicine studies in specific situations. Some of these practices may be considered essential to the success of the nuclear medicine procedure, whereas others may be thought of simply as a means of obtaining more valid or reliable information. Regardless of relative importance, each of the preparatory methods discussed can contribute to the quality of the respective study and can serve as a means of maximizing the value of nuclear medicine procedures. The specific patient preparation techniques discussed in this chapter may not be readily applicable to every practice setting or situation. These or similar procedures can be used or modified as necessary. It is important, however, that when new protocols are developed, the rationale and theoretical basis of each technique be considered

  11. Improving Thermal Performance of a Residential Building, Related to Its Orientations - A Case Study

    Science.gov (United States)

    Akshaya, S.; Harish, S.; Arthy, R.; Muthu, D.; Venkatasubramanian, C.

    2017-07-01

    Urban planners and stakeholders require knowledge about the effectiveness of city-scale climate adaptation measures in order to develop climate resilient cities and to push forward the political process for the implementation of climate adaptation strategies. This study examines the impact of modifications in orientation of buildings with respect to heat load. Heat load calculation is a mathematical process to determine the best capacity, application and style of HVAC system. The purpose is to ensure energy efficiency while also maximizing comfort inside the building. This study of load calculation is essential for a building because it helps to pick the best orientation and focuses to find an orientation that will reduce energy due to direct solar radiation. One of the factors affecting this assessment is the latitude of the location. The heat gain is effective through walls and fenestration. Improper management through ineffective orientation of the building’s natural heat gain leads to excessive consumption of energy in the form of CL. The total heat gain for the above factors is calculated with the equations and assumptions as per ASHRAE code. After the calculation of heat load for different orientations, the best suited orientation of the building is found. By altering the building to suitable orientation, the dependence on electrical equipment can be minimized and thereby helps in energy conservation.

  12. Study of relationship between the organizational structure and market orientation from the viewpoint of nurse managers.

    Science.gov (United States)

    Bahadori, Mohammadkarim; Yaghoubi, Maryam; Javadi, Marzieh; Rahimi, Zahreh Agha

    2015-01-01

    Considering globalization of health care and quality improvement trend to respond to competition and customer orientation, attention to organizational structure and its relationship with market orientation is essential. Therefore, this study reviews the relationship between organizational structure and market orientation in selected hospitals of Isfahan (Iran). This study was a descriptive survey. The study population comprised nurse managers from selected hospitals (n = 80). Data collection tools were two questionnaires (market orientation questionnaire and organizational structure) that the validity and reliability were confirmed (r = 0.83 for market orientation questionnaire and r = 0.87 for organizational structure). SPSS (Ver. 16) software was used for the analyses. The mean score of organizational structure was 65.4 (11.2) and total mean of market orientation was 51.14 (17.6). All aspects of the organizational structure (Organization Centralization, Formalization in Organization, and Organization Complication) and market orientation (responding to competition, accountability, customer satisfaction, intelligent organization)-except by responding to clients with Formalization in Organization-as well as all aspects of the Systemic attitude (the system of internal coordination and communication systems_ and market orientation (responding to competition, accountability, customer satisfaction, intelligent organization), there was a meaningful relationship (P organizational structure and can lead managers' view to the analysis and recognizing elements of success and achievement to goals. With increasing competition in markets, globalization of health services, and presence in international markets and more attention to patients' satisfaction, hospitals need to understand and use of market orientation in order to promote quality and services in the health care system.

  13. A QUANTITATIVE STUDY OF MARKET ORIENTATION AND ORGANIZATIONAL PERFORMANCE OF LISTED COMPANIES: EVIDENCE FROM GHANA

    OpenAIRE

    Solomon A. Keelson

    2012-01-01

    The study is part of a larger research of market orientation, which was conducted to build on previous research, and particularly examined the association between market orientation and business performance in a larger market context, using a synthesis model approach. Using the survey approach 24 companies out of 37 listed companies participated in the quantitative study; where 72 senior officials were surveyed from August 2011 to September 2011, through a five-likert scale questions. In this...

  14. Study of the nuclear matter

    International Nuclear Information System (INIS)

    Bisquer, E.; Colin, E.; Demeyer, A.; Galichet, E.; Gerlic, E.; Guinet, D.; Lautesse, P.; Maskay-Wallez, A.M.; Stern, M.

    1998-01-01

    The activities of our group on the 4π multidetector INDRA are focussed on two topics. The first one is devoted to the onset of multifragmentation associated or not with the disappearance of the incomplete fusion in two symmetric systems of different sizes: Ar + KCl and Ar + Ni. The second one is devoted to the mid-rapidity particle emission, allowing us to study the first moments of the reaction through the constraints of transport equation of the dynamic models. (authors)

  15. Vapor explosion studies for nuclear and non-nuclear industries

    Energy Technology Data Exchange (ETDEWEB)

    Taleyarkhan, Rusi P. [Arden L. Bement, Jr. Professor Nuclear Engineering, School of Nuclear Engineering, 1290 Nuclear Engineering Building, Room 108C, Purdue University, West Lafayette, IN 47905 (United States)]. E-mail: rusi@purdue.edu

    2005-05-01

    Energetic melt-water explosions are a well-established contributor to risk for nuclear reactors, and even more so for the metal casting industry. In-depth studies were undertaken in an industry-national laboratory collaborative effort to understand the root causes of explosion triggering and to evaluate methods for prevention. The steam explosion triggering studies (SETS) facility was devised and implemented for deriving key insights into explosion prevention. Data obtained indicated that onset of base surface-entrapment induced explosive boiling-caused trigger shocks is a result of complex combination of surface wettability, type of coating (organic versus inorganic), degree of coating wearoff, existence of bypass pathways for pressure relief, charring and non-condensable gas (NCG) release potential. Of these parameters NCGs were found to play a preeminent role on explosion prevention by stabilizing the melt-water steam interface and acting as a shock absorber. The role of NCGs was experimentally confirmed using SETS for their effect on stable film boiling using a downward facing heated body through which gases were injected. The presence of NCGs in the steam film layer caused a significant delay in the transitioning of film-to-nucleate boiling. The role of NCGs on explosion prevention was thereafter demonstrated more directly by introducing molten metal drops into water pools with and without NCG bubbling. Whereas spontaneous and energetic explosions took place without NCG injection, only benign quenching occurred in the presence of NCGs. Gravimetric analyses of organic coatings which are known to prevent explosion onset were also found to release significant NCGs during thermal attack by melt in the presence of water. These findings offer a novel, simple, cost-effective technique for deriving fundamental insights into melt-water explosions as well as for explosion prevention under most conditions of interest to metal casting, and possibly for nuclear reactor

  16. Case Study of Oriental Medicine Treatment with acupotomy Therpy of the Tarsal tunnel Syndrome

    Directory of Open Access Journals (Sweden)

    Lim Na-ra

    2009-03-01

    Full Text Available Purpose : In order to estimate clinical effects of Oriental Medicine Treatment with acupotomy therapy of Tarsal tunnel Syndrome Methods : From 5th November, 2008 to 8th November, 2008, 1 male patient diagnosed as Tarsal tunnel syndrome(clinical diagnosed was treated with general oriental medicine therapy (acupuncture, moxibustion, cupping, physical therapy, herbal medication and acupotomy. Results : The patient's Rt foot paresthesia, pain were remarkably improved. Conclusions : This study demonstrates that oriental medical treatment with acuputomy therapy has notable effect in improving symptoms of tarsal tunnel syndrome. as though we had not wide experience in this treatment, more research is needed.

  17. Oriented collision between 15B and 12C studied within Glauber model using microscopically calculated densities

    International Nuclear Information System (INIS)

    Singh, Vishal; Modi, Swati; Arumugam, P.

    2017-01-01

    Recent advancements in accelerator technology and polarized beams have created opportunities to study oriented collisions of deformed targets. We extend the Glauber model to calculate the interaction cross section for a spherical projectile and a deformed target at different orientation angles of the target. It has been found that the observed reaction cross sections of various systems at high energies can be reproduced with this model. We have used the relativistic mean field (RMF) theory to find the density distribution of nucleons in the projectile and target which are utilised in the Glauber model. We present the variation of interaction cross section of target and projectile with the orientation of deformed target

  18. What predicts recovery orientation in county departments of mental health? A pilot study.

    Science.gov (United States)

    Brown, Timothy T; Mahoney, Christine B; Adams, Neal; Felton, Mistique; Pareja, Candy

    2010-09-01

    In this pilot study we examined the determinants of recovery orientation among employees and influential stakeholders in a sample of 12 county departments of mental health in California. A two-level hierarchical linear model with random intercepts was estimated. Analyses show that recovery orientation has a U-shaped relationship with the age of staff/influential stakeholders and is negatively related to the difference between the desired level of adhocracy and the current level of adhocracy. Recovery orientation is positively related to the education level of staff/influential stakeholders, satisfying transformational leadership outcomes, and larger mental health budgets per capita. Policy implications are discussed.

  19. Nuclear transformations studies in selenium isotopes

    International Nuclear Information System (INIS)

    Lopez M, B.E.

    1976-01-01

    A compilation is made with regard to the chemical effects produced by nuclear transformations, such as the chemical effects of the beta decay and the chemical effects of the reaction (n,γ) in selenium radioisotopes. As a particular case the chemical effect of the isomeric transition of sup(81m)Se(VI) in potassium selenate crystals marked with radioactive selenium is studied experimentally and the method of adsorption in activated carbon is applied for the analytical separation of the traces of the nuclear isomer tetravalent sup(81b)Se(IV) of one fraction which contains the mixture of the selenium radioisotopes. (author)

  20. Study on some characteristics of nuclear emulsions

    Energy Technology Data Exchange (ETDEWEB)

    Yonglian, Liu; Jinqin, Han; Huichang, Liu [Academia Sinica, Beijing, BJ (China). Inst. of Atomic Energy

    1993-11-01

    The authors describe the variation of some characteristics of the nuclear emulsion such as sensitivity, fog density and latent image stability influenced by adding ascorbic acid into the finished emulsion N-4. A comparative study of latent image stability is made between Fuji ET-7B nuclear emulsion and authors' under different temperature and relative humidity. The result indicates that the addition of ascorbic acid obviously improves the latent image stability of the emulsion N-4. The Fuji ET-7B emulsion and the emulsion N-4 containing ascorbic acid have similar latent image fading quality at lower temperature while the Japanese sample does have better quality at room temperature.

  1. Gender variance in childhood and sexual orientation in adulthood: a prospective study.

    Science.gov (United States)

    Steensma, Thomas D; van der Ende, Jan; Verhulst, Frank C; Cohen-Kettenis, Peggy T

    2013-11-01

    Several retrospective and prospective studies have reported on the association between childhood gender variance and sexual orientation and gender discomfort in adulthood. In most of the retrospective studies, samples were drawn from the general population. The samples in the prospective studies consisted of clinically referred children. In understanding the extent to which the association applies for the general population, prospective studies using random samples are needed. This prospective study examined the association between childhood gender variance, and sexual orientation and gender discomfort in adulthood in the general population. In 1983, we measured childhood gender variance, in 406 boys and 473 girls. In 2007, sexual orientation and gender discomfort were assessed. Childhood gender variance was measured with two items from the Child Behavior Checklist/4-18. Sexual orientation was measured for four parameters of sexual orientation (attraction, fantasy, behavior, and identity). Gender discomfort was assessed by four questions (unhappiness and/or uncertainty about one's gender, wish or desire to be of the other gender, and consideration of living in the role of the other gender). For both men and women, the presence of childhood gender variance was associated with homosexuality for all four parameters of sexual orientation, but not with bisexuality. The report of adulthood homosexuality was 8 to 15 times higher for participants with a history of gender variance (10.2% to 12.2%), compared to participants without a history of gender variance (1.2% to 1.7%). The presence of childhood gender variance was not significantly associated with gender discomfort in adulthood. This study clearly showed a significant association between childhood gender variance and a homosexual sexual orientation in adulthood in the general population. In contrast to the findings in clinically referred gender-variant children, the presence of a homosexual sexual orientation in

  2. A study of nuclear power in France

    International Nuclear Information System (INIS)

    Sweet, C.

    1981-01-01

    It is stated that the purpose of the study is to identify and explain, for a British audience, what the author perceives to be the combination of forces and events that have led France to adopt the most thrustful nuclear programme in the world at the present time. The subject is discussed under the headings: nuclear perspectives (energy needs and supplies - forecasts and programmes); the national interest (government policies in relation to energy; reactor types - gas-graphite and LWR); the structure of the French nuclear industry; the State (the French corps of scientists; the existence of an Administrative Elite; the role of the State and its function in industrial management); decision making; the CEA (Commissariat a l'Energie Atomique); Electricite de France; electricity growth and prices; financing the expansion; the international dimension (cooperation). (author)

  3. Project safety studies - nuclear waste management (PSE)

    International Nuclear Information System (INIS)

    1981-10-01

    The project 'Safety Studies-Nuclear Waste Management' (PSE) is a research project performed by order of the Federal Minister for Research and Technology, the general purpose of which is to deepen and ensure the understanding of the safety aspects of the nuclear waste management and to prepare a risk analysis which will have to be established in the future. Owing to this the project is part of a series of projects which serve the further development of the concept of nuclear waste management and its safety, and which are set up in such a way as to accompany the realization of that concept. This report contains the results of the first stage of the project from 1978 to mid-1981. (orig./RW) [de

  4. Women's gender role orientation predicts their drinking patterns: a follow-up study of Czech women.

    Science.gov (United States)

    Kubicka, Ludek; Csémy, Ladislav

    2008-06-01

    Evaluation of the hypothesis that women's non-traditional gender role orientation contributes to drinking patterns typical for men. A two-wave prospective study with data collected in 1992 and 1997. The data reflect Czech women's changing gender role orientation and their drinking patterns during a historical period of post-totalitarian societal transformation. A representative cohort of 497 Prague women aged 30-59 years in 1997. Face-to-face interview data on drinking patterns and individually collected original questionnaire on gender role orientation. An analysis of the principal components of the gender role orientation questionnaire has led to four components, designated as egalitarianism, liberalism, feminism and hedonism. Constructed role orientation scales had Cronbachs's alpha reliabilities ranging from 0.57 to 0.74. With possible confounders controlled (thanks mainly to the prospective design), non-traditional gender role orientation components assessed in 1992 predicted the usual quantities of alcohol women have consumed per occasion in 1997, as well as three hazardous drinking patterns (occasional use of > or = 96 g alcohol, usual use of > or = 48 g and daily intake of > or = 40 g). Specifically, women's usual quantity per occasion and occasional use of > or = 96 g were predicted by egalitarianism and hedonism, and hedonism predicted usual use of > or = 48 g as well as average daily intake of > or = 40 g ethanol. Women's gender role orientation can be associated with their drinking patterns with non-traditional gender role identification being associated with greater likelihood of hazardous drinking.

  5. Pilot study comparing market orientation culture of businesses and schools of business.

    Science.gov (United States)

    Harmon, Harry A; Webster, Robert L; Hammond, Kevin L

    2003-08-01

    A market orientation culture has been described as one that blends an organization's commitment to customer value with a process of continuously creating superior value for customers. Developing such a culture is further described as (1) obtaining information about customers, competitors, and markets, (2) examining the gathered information from a total organizational perspective, (3) deciding how to deliver superior customer value, and (4) implementing actions to provide value to customers. A market orientation culture focuses on the customer, identifies issues in the competitive environment, and coordinates all functional areas to achieve organizational objectives. Research has found businesses with higher market orientation are more successful in achieving organizational objectives. The measurement of market orientation within businesses has been empirically tested and validated. However, empirical research on market orientation in nonprofit organizations such as universities has not been examined. This study investigated market orientation within the university setting, specifically Schools of Business Administration, and compared these data with previously published data within the business sector. Data for comparative purposes were collected via a national survey. Hypothesis testing was conducted. Results indicated significantly lower market orientation culture within the schools of business as reported by AACSB Business School Deans vis-à-vis managers of business enterprises.

  6. Study on interface between nuclear material accounting system and national nuclear forensic library

    International Nuclear Information System (INIS)

    Jeong, Yonhong; Han, Jae-Jun; Chang, Sunyoung; Shim, Hye-Won; Ahn, Seungho

    2016-01-01

    The implementation of nuclear forensics requires physical, chemical and radiological characteristics with transport history to unravel properties of seized nuclear materials. For timely assessment provided in the ITWG guideline, development of national response system (e.g., national nuclear forensic library) is strongly recommended. Nuclear material accounting is essential to obtain basic data in the nuclear forensic implementation phase from the perspective of nuclear non-proliferation related to the IAEA Safeguards and nuclear security. In this study, the nuclear material accounting reports were chosen due to its well-established procedure, and reviewed how to efficiently utilize the existing material accounting system to the nuclear forensic implementation phase In conclusion, limits and improvements in implementing the nuclear forensics were discussed. This study reviewed how to utilize the existing material accounting system for implementing nuclear forensics. Concerning item counting facility, nuclear material properties can be obtained based on nuclear material accounting information. Nuclear fuel assembly data being reported for the IAEA Safeguards can be utilized as unique identifier within the back-end fuel cycle. Depending upon the compulsory accountability report period, there exist time gaps. If national capabilities ensure that history information within the front-end nuclear fuel cycle is traceable particularly for the bulk handling facility, the entire cycle of national nuclear fuel would be managed in the framework of developing a national nuclear forensic library

  7. Study on interface between nuclear material accounting system and national nuclear forensic library

    Energy Technology Data Exchange (ETDEWEB)

    Jeong, Yonhong; Han, Jae-Jun; Chang, Sunyoung; Shim, Hye-Won; Ahn, Seungho [Korea Institute of Nuclear Non-proliferation and Control, Daejeon (Korea, Republic of)

    2016-10-15

    The implementation of nuclear forensics requires physical, chemical and radiological characteristics with transport history to unravel properties of seized nuclear materials. For timely assessment provided in the ITWG guideline, development of national response system (e.g., national nuclear forensic library) is strongly recommended. Nuclear material accounting is essential to obtain basic data in the nuclear forensic implementation phase from the perspective of nuclear non-proliferation related to the IAEA Safeguards and nuclear security. In this study, the nuclear material accounting reports were chosen due to its well-established procedure, and reviewed how to efficiently utilize the existing material accounting system to the nuclear forensic implementation phase In conclusion, limits and improvements in implementing the nuclear forensics were discussed. This study reviewed how to utilize the existing material accounting system for implementing nuclear forensics. Concerning item counting facility, nuclear material properties can be obtained based on nuclear material accounting information. Nuclear fuel assembly data being reported for the IAEA Safeguards can be utilized as unique identifier within the back-end fuel cycle. Depending upon the compulsory accountability report period, there exist time gaps. If national capabilities ensure that history information within the front-end nuclear fuel cycle is traceable particularly for the bulk handling facility, the entire cycle of national nuclear fuel would be managed in the framework of developing a national nuclear forensic library.

  8. Condensed matter studies by nuclear methods

    International Nuclear Information System (INIS)

    Krolas, K.; Tomala, K.

    1988-01-01

    The separate abstract was prepared for 1 of the papers in this volume. The remaining 13 papers dealing with the use but not with advances in the use of nuclear methods in studies of condensed matter, were considered outside the subject scope of INIS. (M.F.W.)

  9. Theoretical studies in nuclear structure

    International Nuclear Information System (INIS)

    Marshalek, E.R.

    1991-11-01

    In this period, the work has centered on two topics. The first is the study of a novel type of collective rotation in which an atomic nucleus with an inversion-symmetric shape rotates uniformly about an axis that is not a principal axis of the quadrupole tensor of the density distribution. This mode is referred to as tilted rotation. By using the cranking model together with higher-order corrections, it was shown that tilted rotation is indeed possible, not only within a microscopic framework, but also within the framework of collective models such as the IBM. The maximum tilt angle of π/4 is realized for a certain class of states in the U(5) limit. The second topic, which actually was suggested during the course of the first investigation, is concerned with a new way of representing collective harmonic-oscillator algebras using boson-mapping techniques. In this approach, the many-phonon eigenvectors of a 2λ+1-dimensional oscillator having good angular momentum are represented by simple products of boson operators acting on a vacuum. This representation may simplify the calculation of reduced matrix elements of arbitrary operators in collective models, but more work needs to be done

  10. Process-oriented dose assessment model for 14C due to releases during normal operation of a nuclear power plant

    International Nuclear Information System (INIS)

    Aquilonius, Karin; Hallberg, Bengt

    2005-01-01

    Swedish nuclear utility companies are required to assess doses due to releases of radionuclides during normal operation. In 2001, calculation methods used earlier were updated due to new authority regulations. The isotope 14 C is of special interest in dose assessments due to the role of carbon in the metabolism of all life forms. Earlier, factors expressing the ratio between concentration of 14 C in air and in various plants were used. In order to extend the possibility to take local conditions into account, a process-oriented assessment model for uptake of carbon and doses from releases of 14 C to air was developed (POM 14 C). The model uses part of Daisy which has been developed to model the turnover of carbon in crops. [Hansen, S., Jensen, H.E., Nielsen, N.E., Svendsen, H., 1993. Description of the Soil Plant System Model DAISY, Basic Principles and Modelling Approach. Simulation Model for Transformation and Transport of Energy and Matter in the Soil Plant Atmosphere System. Jordbruksfoerlaget, The Royal Veterianary and Agricultural University, Copenhagen, Denmark]. The main objectives were to test model performance of the former method, and to investigate if taking site specific parameters into account to a greater degree would lead to major differences in the results. Several exposure pathways were considered: direct consumption of locally grown cereals, vegetables, and root vegetables, as well as consumption of milk and meat from cows having eaten fodder cereals and green fodder from the area around the nuclear plant. The total dose of the earlier model was compared with that of POM 14 C. The result of the former was shown to be slightly higher than the latter, but POM 14 C confirmed that the earlier results were of a reasonable magnitude. When full account of local conditions was taken, e.g. as regards solar radiation, temperature, and concentration of 14 C in air at various places in the surroundings of each nuclear plant, a difference in dose between

  11. Nuclear magnetic relaxation induced by exchange-mediated orientational randomization: longitudinal relaxation dispersion for a dipole-coupled spin-1/2 pair.

    Science.gov (United States)

    Chang, Zhiwei; Halle, Bertil

    2013-10-14

    In complex biological or colloidal samples, magnetic relaxation dispersion (MRD) experiments using the field-cycling technique can characterize molecular motions on time scales ranging from nanoseconds to microseconds, provided that a rigorous theory of nuclear spin relaxation is available. In gels, cross-linked proteins, and biological tissues, where an immobilized macromolecular component coexists with a mobile solvent phase, nuclear spins residing in solvent (or cosolvent) species relax predominantly via exchange-mediated orientational randomization (EMOR) of anisotropic nuclear (electric quadrupole or magnetic dipole) couplings. The physical or chemical exchange processes that dominate the MRD typically occur on a time scale of microseconds or longer, where the conventional perturbation theory of spin relaxation breaks down. There is thus a need for a more general relaxation theory. Such a theory, based on the stochastic Liouville equation (SLE) for the EMOR mechanism, is available for a single quadrupolar spin I = 1. Here, we present the corresponding theory for a dipole-coupled spin-1/2 pair. To our knowledge, this is the first treatment of dipolar MRD outside the motional-narrowing regime. Based on an analytical solution of the spatial part of the SLE, we show how the integral longitudinal relaxation rate can be computed efficiently. Both like and unlike spins, with selective or non-selective excitation, are treated. For the experimentally important dilute regime, where only a small fraction of the spin pairs are immobilized, we obtain simple analytical expressions for the auto-relaxation and cross-relaxation rates which generalize the well-known Solomon equations. These generalized results will be useful in biophysical studies, e.g., of intermittent protein dynamics. In addition, they represent a first step towards a rigorous theory of water (1)H relaxation in biological tissues, which is a prerequisite for unravelling the molecular basis of soft

  12. Why should we study nuclear physics?

    International Nuclear Information System (INIS)

    Darriulat, Pierre

    2015-01-01

    After a brief look at the history of nuclear science and technology in the past hundred years, arguments are given for the study of Nuclear Physics, very different of course from what they were in the middle of the past century. Nuclear physics no longer appears as a good bet to study the strong force. Problems left open by QCD are better addressed by relativistic ion accelerators, RHIC and LHC/Alice. Radioactive Ion Beams have caused a renaissance of experimental nuclear physics. They explore the nuclear equation of state far from the stability valley, discovering new isotopes and new forms of dynamics, such as halo nuclei. They contribute essential data to nuclear astrophysics. They have new applications in medicine and industry. They enjoy strong support all around the world; in Asia, Japan is a leader and Korea and China are joining the club. Nuclear processes are ubiquitous in astrophysics: Big bang nucleosynthesis, Main Sequence stars, evolved stars (Asymptotic Giant Branch and Supernovae). Understanding what is going on requires knowledge from laboratory measurements; at the same time astrophysics gives nuclear physics a laboratory having no equivalent on Earth. Applications of nuclear physics pervade modern societies. Medicine and material sciences, make ample use of radioactive sources and ion beams, as do all branches of agriculture and industry. Accelerators are now commercially available and part of the industrial landscape. Implications on training competent scientists, technicians and engineers are enormous. Particularly crucial are matters of safety. Nuclear Power Plants are a major element of the Vietnamese energy policy in the decades to come. Their safe and efficient operation requires high level skills and competence that cover a broad spectrum of scientific and technical, but also socio-economic and geo-political issues. Nuclear physics must be taught to the young generation in a form that takes proper account of the current scientific

  13. Customer orientation and innovation : a comparative study of manufacturing and service firms

    OpenAIRE

    Wang, Qiang; Zhao, Xiande; Voss, Christopher

    2016-01-01

    This study investigates the effect of customer orientation on innovation performance in manufacturing and service firms by comparing their innovation mechanisms. Based on a sample of 1646 manufacturing firms and 686 service firms, our results indicate that customer orientation positively affects service innovativeness and product innovativeness in service firms and manufacturing firms, respectively, and that such effects are mediated by two important firm resources: supplier collaboration and...

  14. Knowledge management, market orientation, innovativeness and organizational outcomes: a study on companies operating in Brazil

    OpenAIRE

    Ferraresi, Alex Antonio; Santos, Silvio Aparecido dos; Frega, José Roberto; Pereira, Heitor José

    2012-01-01

    This article analyzes the study of the relationship among knowledge management, the company's market orientation, innovativeness and organizational outcomes. The survey was conducted based on a survey held with executives from 241 companies in Brazil. The evidence found indicates that knowledge management directly contributes to market orientation, but it requires a clearly defined strategic direction to achieve results and innovativeness. It was also concluded that knowledge, as a resource, ...

  15. Nuclear magnetic resonance studies of lens transparency

    International Nuclear Information System (INIS)

    Beaulieu, C.F.

    1989-01-01

    Transparency of normal lens cytoplasm and loss of transparency in cataract were studied by nuclear magnetic resonance (NMR) methods. Phosphorus ( 31 P) NMR spectroscopy was used to measure the 31 P constituents and pH of calf lens cortical and nuclear homogenates and intact lenses as a function of time after lens enucleation and in opacification produced by calcium. Transparency was measured with laser spectroscopy. Despite complete loss of adenosine triphosphate (ATP) within 18 hrs of enucleation, the homogenates and lenses remained 100% transparent. Additions of calcium to ATP-depleted cortical homogenates produced opacification as well as concentration-dependent changes in inorganic phosphate, sugar phosphates, glycerol phosphorylcholine and pH. 1 H relaxation measurements of lens water at 200 MHz proton Larmor frequency studied temperature-dependent phase separation of lens nuclear homogenates. Preliminary measurements of T 1 and T 2 with non-equilibrium temperature changes showed a change in the slope of the temperature dependence of T 1 and T 2 at the phase separation temperature. Subsequent studies with equilibrium temperature changes showed no effect of phase separation on T 1 or T 2 , consistent with the phase separation being a low-energy process. 1 H nuclear magnetic relaxation dispersion (NMRD) studies (measurements of the magnetic field dependence of the water proton 1/T 1 relaxation rates) were performed on (1) calf lens nuclear and cortical homogenates (2) chicken lens homogenates, (3) native and heat-denatured egg white and (4) pure proteins including bovine γ-II crystallin bovine serum albumin (BSA) and myoglobin. The NMRD profiles of all samples exhibited decreases in 1/T 1 with increasing magnetic field

  16. Students' Preconceptions and Perceptions of Science-Oriented Studies

    NARCIS (Netherlands)

    Korpershoek, Hanke; Kuyper, Hans; Bosker, Roel; van der Werf, Greetje

    2013-01-01

    Do non-science, technology, engineering, and mathematics (STEM) students' views about STEM studies correspond with how STEM students actually perceive these studies? This paper deals with this issue by comparing higher education students' attitudes towards STEM studies between those who actually did

  17. Market Orientation and Sources of Knowledge to Innovate in SMEs: A Firm Level Study

    Directory of Open Access Journals (Sweden)

    Simone Regina Didonet

    2016-10-01

    Full Text Available This work examines the relationship between the three market orientation (MO components, i.e. customer orientation, competitor orientation and inter-functional coordination, and the extension to which small and medium-sized enterprises (SMEs use different sources of knowledge to innovate. Based on a sample of 181 Chilean SMEs, a confirmatory factorial analysis (CFA was performed to analyze the relationship among constructs. The results show that the extension to which SMEs use different sources of knowledge to innovate depends on the interactions between MO components. This study addresses a gap in the literature, by linking and interrelating market orientation components to the innovation perspective in SMEs. Therefore, we provide insights into the role of each MO component in influencing the extension to which firms seek for and use different sources of knowledge to innovate and attempt to explain some literature inconsistencies on the theme.

  18. Victimisation and psychosocial difficulties associated with sexual orientation concerns: a school-based study of adolescents.

    LENUS (Irish Health Repository)

    Cotter, P

    2014-11-01

    This study examined victimisation, substance misuse, relationships, sexual activity, mental health difficulties and suicidal behaviour among adolescents with sexual orientation concerns in comparison to those without such concerns. 1112 Irish students (mean age 14 yrs) in 17 mixed-gender secondary schools completed a self-report questionnaire with standardised scales and measures of psychosocial difficulties. 58 students (5%) reported having concerns regarding their sexual orientation. Compared with their peers, they had higher levels of mental health difficulties and a markedly-increased prevalence of attempted suicide (29% vs. 2%), physical assault (40% vs. 8%), sexual assault (16%vs. 1%) and substance misuse. Almost all those (90%) with sexual orientation concerns reported having had sex compared to just 4% of their peers. These results highlight the significant difficulties associated with sexual orientation concerns in adolescents in Ireland. Early and targeted interventions are essential to address their needs.

  19. A study on international nuclear organizations and conventions for the globalization of Korean nuclear community

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Kwang Seok; Oh, Keun Bae; Lee, Byung Wook; Cho, Il Hoon; Lee, Jae Sung; Choi, Young Rok; Ko, Han Seok; Ham, Chul Hoon; Lee, Byung Woon [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1995-12-01

    The objective of this study is to analyze the current status of international nuclear organizations and conventions in systems perspective and suggest national strategies for utilizing them for the globalization of Korean nuclear community. This study analyzes the current status of international nuclear organizations such as IAEA(International Atomic Energy Agency) and international nuclear conventions related to nuclear accidents, nuclear liability, physical protection or nuclear safety. Based on the analysis, this study suggests national strategies, in general and specific terms, to utilize international nuclear organizations and conventions for the globalization of Korean nuclear community. Separately from this report this study publishes `IAEA Handbook`, which contains all about IAEA such as statute, membership, organizational structure, main activities, finance and budget, etc.. 9 tabs., 2 figs., 35 refs. (Author).

  20. A study on international nuclear organizations and conventions for the globalization of Korean nuclear community

    International Nuclear Information System (INIS)

    Lee, Kwang Seok; Oh, Keun Bae; Lee, Byung Wook; Cho, Il Hoon; Lee, Jae Sung; Choi, Young Rok; Ko, Han Seok; Ham, Chul Hoon; Lee, Byung Woon

    1995-12-01

    The objective of this study is to analyze the current status of international nuclear organizations and conventions in systems perspective and suggest national strategies for utilizing them for the globalization of Korean nuclear community. This study analyzes the current status of international nuclear organizations such as IAEA(International Atomic Energy Agency) and international nuclear conventions related to nuclear accidents, nuclear liability, physical protection or nuclear safety. Based on the analysis, this study suggests national strategies, in general and specific terms, to utilize international nuclear organizations and conventions for the globalization of Korean nuclear community. Separately from this report this study publishes 'IAEA Handbook', which contains all about IAEA such as statute, membership, organizational structure, main activities, finance and budget, etc.. 9 tabs., 2 figs., 35 refs. (Author)

  1. Children's advertising exposure and materialistic orientations: A longitudinal study

    NARCIS (Netherlands)

    Opree, S.J.; Valkenburg, P.M.; Reijmersdal, E.A. van; Buijzen, M.A.

    2012-01-01

    As many as nine out of 10 parents worry that children's frequent exposure to advertising makes them materialistic. In this study we not only aim to investigate if children's advertising exposure indeed affects their materialism, but also how it affects their materialism (i.e., by studying the

  2. Nuclear fission studies: from LOHENGRIN to FIPPS

    International Nuclear Information System (INIS)

    Chebboubi, Abdelaziz

    2015-01-01

    Nuclear fission consists in splitting a nucleus, in general an actinide, into smaller nuclei. Despite nuclear fission was discovered in 1939 by Hahn and Strassman, fission models cannot predict the fission observables with an acceptable accuracy for nuclear fuel cycle studies for instance. Improvement of fission models is an important issue for the knowledge of the process itself and for the applications. To reduce uncertainties of the nuclear data used in a nuclear reactor simulation, a validation of the models hypothesis is mandatory. In this work, two features of the nuclear fission were investigated in order to test the resistance of the theories. One aspect is the study of the symmetric fission fragments through the measurement of their yield and kinetic energy distribution. The other aspect is the study of the fission fragment angular momentum.Two techniques are available to assess the angular momentum of a fission fragment. The first one is to look at the properties of the prompt gamma. The new spectrometer FIPPS (Fission Product Prompt gamma-ray Spectrometer), is currently under development at the ILL and will combine a fission filter with a large array of gamma and neutron detectors in order to respond to these issues. The first part of this work is dedicated to the study of the properties of a Gas Filled Magnet (GFM) which is the type of fission filter considered for the FIPPS project.The second part of this work deals with the measurement of isomeric yields and evaluations of the angular momentum distribution of fission fragments. The study of the spherical nucleus 132 Sn shed the light on the current limits of fission models. Finally, the last part of this work is about the measurement of the yields and kinetic energy distributions of symmetric fission fragments. Since models predict the existence of fission modes, the symmetry region is a suitable choice to investigate this kind of prediction. In parallel with all these studies, an emphasis on the

  3. Geochemistry study of orientation made in the Uranio mission context

    International Nuclear Information System (INIS)

    1982-01-01

    The objective of the geochemical study or guidance study, is to select the three main parameters of strategic a geochemical prospection: place election for samples extraction, king of material to sample, the average density of sampling. Also throughout the tours, complementary studies can take place in order to improve the chosen techniques initially. Inspiring by results obtained by Alain Lambert to us by the end of 1981 in diverse tactics done in known indications, we have come to a preliminary study days 7 and 8 of January of 1982 in the South Long Hill region. During the campaign of strategic prospection, two complementary studies were realised: one in the region of Yerba Sola and another one in Paso Severino from the 6 to the 9 of October of 1982

  4. Nuclear anxiety: a test-construction study

    International Nuclear Information System (INIS)

    Braunstein, A.L.

    1986-01-01

    The Nuclear Anxiety Scale was administered to 263 undergraduate and graduate studies (on eight occasions in December, 1985 and January, 1986). (1) The obtained alpha coefficient was .91. This was significant at the .01 level, and demonstrated that the scale was internally homogeneous and consistent. (2) Item discrimination indices (point biserial correlation coefficients) computered for the thirty (30) items yielded a range of .25 to .64. All coefficients were significant at the .01 level, and all 30 items were retained as demonstrating significant discriminability. (3) The correlation between two administrations of the scale (with a 48-hour interval) was .83. This was significant at the .01 level, and demonstrated test-retest reliability and stability over time. (4) The point-biserial correlation coefficient between scores on the Nuclear Anxiety Scale, and the students' self-report of nuclear anxiety as being either a high or low ranked stressor, was .59. This was significant at the .01 level, and demonstrated concurrent validity. (5) The correlation coefficient between scores on the Nuclear Anxiety Scale and the Spielberger State-Trait Anxiety Inventory, A-Trait, (1970), was .41. This was significant at the .01 level, and demonstrated convergent validity. (6) The correlation coefficient between positively stated and negatively stated items (with scoring reversed) was .76. This was significant at the .01 level, and demonstrated freedom from response set bias

  5. Study of nuclear level densities for exotic nuclei

    International Nuclear Information System (INIS)

    Nasrabadi, M. N.; Sepiani, M.

    2012-01-01

    Nuclear level density is one of the properties of nuclei with widespread applications in astrophysics and nuclear medicine. Since there has been little experimental and theoretical research on the study of nuclei which are far from stability line, studying nuclear level density for these nuclei is of crucial importance. Also, as nuclear level density is an important input for nuclear research codes, hence studying the methods for calculation of this parameter is essential. Besides introducing various methods and models for calculating nuclear level density for practical applications, we used exact spectra distribution (SPDM) for determining nuclear level density of two neutron and proton enriched exotic nuclei with the same mass number.

  6. X-ray absorption spectroscopy and EPR studies of oriented spinach thylakoid preparations

    Energy Technology Data Exchange (ETDEWEB)

    Andrews, J.C. [Univ. of California, Berkeley, CA (United States). Dept. of Chemistry]|[Lawrence Berkeley Lab., CA (United States). Structural Biology Div.

    1995-08-01

    In this study, oriented Photosystem II (PS II) particles from spinach chloroplasts are studied with electron paramagnetic resonance (EPR) and x-ray absorption spectroscopy (XAS) to determine more details of the structure of the oxygen evolving complex (OEC). The nature of halide binding to Mn is also studied with Cl K-edge and Mn EXAFS (extended x-ray absorption fine structure) of Mn-Cl model compounds, and with Mn EXAFS of oriented PS II in which Br has replaced Cl. Attention is focused on the following: photosynthesis and the oxygen evolving complex; determination of mosaic spread in oriented photosystem II particles from signal II EPR measurement; oriented EXAFS--studies of PS II in the S{sub 2} state; structural changes in PS II as a result of treatment with ammonia: EPR and XAS studies; studies of halide binding to Mn: Cl K-edge and Mn EXAFS of Mn-Cl model compounds and Mn EXAFS of oriented Br-treated photosystem II.

  7. Afro-New World Studies: A New Name and Orientation.

    Science.gov (United States)

    Johnson, Whittington B.

    Recent years have indicated a shift by black students in their attitudes toward Black Studies programs. These students now judge programs by their pragmatic, rather than polemical, value in serving as an entree to professional schools. This trend is paralleled by a declining economic situation which may force colleges to terminate programs they…

  8. A study on the nuclear foreign policy analysis

    International Nuclear Information System (INIS)

    Oh, Keun Bae; Choi, Y. M.; Lee, D. J.; Lee, K. S.; Lee, B. W.; Cho, I. H.; Ko, H. S.

    1996-12-01

    This study aims to analyses recent trends of international situation relating to nuclear non-proliferation and the adverse conditions in Korea's pursuing self-support of such technology, so that it may map out effective strategies for the promotion of nuclear energy. This study analyses developments of international nuclear non-proliferation regime, which plays a main role in preventing the international proliferation of nuclear weapons. This study includes NPT, IAEA safeguards system, international export control regimes, CTBT, and NWFZs as the subjects of analysis. Second theme is international organizations concerning nuclear activities. This study mainly analyses IAEA activities which pursues the promotion of peaceful use of nuclear energy and nuclear non-proliferation simultaneously as a pivotal body of international nuclear cooperation. Third focus of this study is Northeast Asian circumstances pertaining to nuclear non-proliferation. The study looks into the DPRK nuclear issues, and reviews the developments of the proposed regional body for nuclear cooperation and the discussion on the Northeast Asian NWFZ. Fourth, but the most influential to Korean nuclear activities, is the U. S. nuclear policy, since U. S. takes the overwhelming initiative in the field of international nuclear non-proliferation. Therefore, this study gives much weight in analyzing the structure, procedures, recent trend, and pending issues of U. S. nuclear policy. (author). 78 refs., 5 tabs., 4 figs

  9. Civil Defense, U. S. A.: A Programmed Orientation to Civil Defense. Unit 2. Nuclear Weapons Effects and Shelter.

    Science.gov (United States)

    Defense Civil Preparedness Agency (DOD), Battle Creek, MI.

    Basic information about nuclear weapons is presented so that their effects can be meaningfully related to the defensive countermeasures which will be most effective against them. Major topics include: (1) Explosive power of nuclear weapons, (2) Major effects of nuclear explosions, (3) Two basic types of nuclear explosions, (4) Contrast between air…

  10. Using MUSIC to study relativistic nuclear collisions

    International Nuclear Information System (INIS)

    1983-01-01

    A large Multiple Sampling Ionization Chamber (MUSIC) has been developed as a part of the Heavy Ion Spectrometer System (HISS). This facility is being used for the study of relativistic nuclear collisions at the Bevalac of Lawrence Berkeley Laboratory. Preliminary data from MUSIC indicate that a charge resolution of one unit should be achieved from Z approximately equal to 7 to Z approximately equal to 100. (author)

  11. Two Studies of the Empirical Basis of Two Learning Resource-Oriented Motivational Strategies for Gifted Educators

    Science.gov (United States)

    Vladut, Anamaria; Vialle, Wilma; Ziegler, Albert

    2016-01-01

    Two learning resource-oriented motivational strategies for gifted educators are introduced: a homeostatic orientation that aims for balance and an allostatic orientation that aims at growth. In order to establish the empirical basis of these motivational strategies, two studies were conducted with samples of students from a specialized…

  12. TEM Study of the Orientation Relationship Between Cementite and Ferrite in a Bainitic Low Carbon High Strength Low Alloy Steel

    OpenAIRE

    Illescas Fernandez, Silvia; Brown, A.P.; He, K.; Fernández, Javier; Guilemany Casadamon, Josep Maria

    2005-01-01

    Two different bainitic structures are observed in a steel depending on the sample heat treatment. The different types of bainitic structures exhibit different orientation relationships between cementite and the ferrite matrix. Upper bainite presents a Pitsch orientation relationship and lower bainite presents a Bagaryatski orientation relationship. Different heat treatments of low carbon HSLA steel samples have been studied using TEM in order to find the orientation relationshi...

  13. Market Orientation Impact on Radical and Incremental Marketing Innovation: A Study of Saudi Arabia Hospital Marketing Efforts

    OpenAIRE

    Alshahry Abdullah saeed A; Wang Aimin

    2015-01-01

    We conducted an empirical study to measure influence of market orientation on marketing innovation in hospitals in Saudi Arabia. The sample includes 109 hospital workers that have been identified as having an adequate knowledge of the subject of research. In particular we explain the impact of customer orientation, inter-functional orientation and competitor orientation on marketing innovation. Furthermore the moderating effects of centralization and formalization on those relationships are e...

  14. Progress report on nuclear spectroscopic studies

    International Nuclear Information System (INIS)

    Bingham, C.R.; Guidry, M.W.; Riedinger, L.L.; Sorensen, S.P.

    1994-01-01

    The Nuclear Physics group at the University of Tennessee, Knoxville (UTK) is involved in several aspects of heavy-ion physics including both nuclear structure and reaction mechanisms. While the main emphasis is on experimental problems, the authors have maintained a strong collaboration with several theorists in order to best pursue the physics of their measurements. During the last year they have had several experiments at the ATLAS at Argonne National Laboratory, the GAMMASPHERE at the LBL 88 Cyclotron, and with the NORDBALL at the Niels Bohr Institute Tandem. Also, they continue to be very active in the WA93/98 collaboration studying ultra-relativistic heavy ion physics utilizing the SPS accelerator at CERN in Geneva, Switzerland and in the PHENIX Collaboration at the RHIC accelerator under construction at Brookhaven National Laboratory. During the last year their experimental work has been in three broad areas: (1) the structure of nuclei at high angular momentum, (2) the structure of nuclei far from stability, and (3) ultra-relativistic heavy-ion physics. The results of studies in these particular areas are described in this document. These studies concentrate on the structure of nuclear matter in extreme conditions of rotational motion, imbalance of neutrons and protons, or very high temperature and density. Another area of research is heavy-ion-induced transfer reactions, which utilize the transfer of nucleons to states with high angular momentum to learn about their structure and to understand the transfer of particles, energy, and angular momentum in collisions between heavy ions

  15. Childhood gender-typed behavior and adolescent sexual orientation: A longitudinal population-based study.

    Science.gov (United States)

    Li, Gu; Kung, Karson T F; Hines, Melissa

    2017-04-01

    Lesbian and gay individuals have been reported to show more interest in other-sex, and/or less interest in same-sex, toys, playmates, and activities in childhood than heterosexual counterparts. Yet, most of the relevant evidence comes from retrospective studies or from prospective studies of clinically referred, extremely gender nonconforming children. In addition, findings are mixed regarding the relation between childhood gender-typed behavior and the later sexual orientation spectrum from exclusively heterosexual to exclusively lesbian/gay. The current study drew a sample (2,428 girls and 2,169 boys) from a population-based longitudinal study, and found that the levels of gender-typed behavior at ages 3.5 and 4.75 years, although less so at age 2.5 years, significantly and consistently predicted adolescents' sexual orientation at age 15 years, both when sexual orientation was conceptualized as 2 groups or as a spectrum. In addition, within-individual change in gender-typed behavior during the preschool years significantly related to adolescent sexual orientation, especially in boys. These results suggest that the factors contributing to the link between childhood gender-typed behavior and sexual orientation emerge during early development. Some of those factors are likely to be nonsocial, because nonheterosexual individuals appear to diverge from gender norms regardless of social encouragement to conform to gender roles. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  16. Virtual Prototyping, a Case Study in Dataflow Oriented Codesign

    DEFF Research Database (Denmark)

    Holten-Lund, Hans Erik; Lütken, Martin; Madsen, Jan

    1998-01-01

    The main topic of this paper is a discussion of the design process we haveused during development of an application specific computer system.We will focus on a case study involving a 3D computer graphics systemwe are currently developing, and how such a system can be optimized for speed.The paper.......An interesting consequence of this is that at the systemintegration scale the optimizations we perform to acheive good hardwareperformance, are in fact also contributing to improving the executionspeed of the software prototype....

  17. A Mixed-Methods Study Investigating the Relationship between Media Multitasking Orientation and Grade Point Average

    Science.gov (United States)

    Lee, Jennifer

    2012-01-01

    The intent of this study was to examine the relationship between media multitasking orientation and grade point average. The study utilized a mixed-methods approach to investigate the research questions. In the quantitative section of the study, the primary method of statistical analyses was multiple regression. The independent variables for the…

  18. Developing a study orientation questionnaire in Mathematics for primary school students

    OpenAIRE

    Van Der Walt, Martha

    2009-01-01

    The Study Orientation Questionnaire in Mathematics (Primary) is being developed as a diagnostic measure for South African teachers and counsellors to help primary school students improve their orientation towards the study of mathematics. In this study, participants were primary school students in the North-West Province of South Africa. During the standardisation in 2007, 1,013 students (538 boys: M age = 12.61; SD = 1.53; 555 girls: M age = 11.98; SD = 1.35; 10 missing values) were assessed...

  19. West meets East: psychophysics studies for understanding mysterious Oriental health promoting practices

    Science.gov (United States)

    Chen, Hai-Wen

    2008-04-01

    Based on his early graduated studies in psychophysics, the author has, in recent years, applied psychophysics for studying organic and motor senses (the two sensory systems deeply embedded inside of human body), and tried to understand the scientific foundation of the oriental health promoting practices. The preliminary results are promising and are discussed in detail in this paper. Psychophysics studies of organic and motor senses may be the tool to provide the connection between Western and Eastern medicines to form a balanced holistic medicine approach, and may help us to understand the scientific foundation of mysterious oriental health Promoting practices that serve as alternative medicines for promoting human wellness against illness.

  20. [A cephalometric study on determining the orientation of occlusal plane].

    Science.gov (United States)

    Xie, J; Zhao, Y; Chao, Y; Luo, W

    1993-12-01

    A study of the parallel relationship between the occlusal plane and the line connecting nasal alar and tragus was made in 90 dentulous cases by using cephalometry. The results show that the line connecting the inferior point of nasal alar and the mid-point of tragus runs much more parallel with the occlusal plane. The regression equation reveals a "line of closest fitting". It was used in the prosthetic treatment for 50 edentulous patients with good clinical results. The line connecting the inferior point of nasal alar and the mid-point of tragus therefore represents a proper reference plane for determining occlusal plane and hence should be still a valuable index in clinical dentistry.

  1. Influence of time orientation on food choice: Case study with cookie labels.

    Science.gov (United States)

    Tórtora, Giuliana; Ares, Gastón

    2018-04-01

    Time orientation can influence health-related behaviors, including food consumption. The aim of the present work was to study the influence of time orientation on food choice, using cookie labels as case study. A choice-conjoint task was designed using labels differing in type of cookie (chocolate chips vs. granola), front-of-pack nutrition information (nutritional warnings vs. Facts Up Front system) and nutritional claim (no claim vs. "0% cholesterol. 0% trans fat"). An online study was conducted, in which 155 participants evaluated 8 pairs of cookie labels and selected the one they would buy if they were in the supermarket. Then, they were asked to complete a consideration of future consequences scale (CFC) adapted to eating habits, as well as a questionnaire about socio-demographic characteristics. Time orientation influenced participants' choices of cookies labels; particularly the importance attached to type of cookie. Participants with greater consideration of future consequences preferred the granola cookies, associated with health, while those who prioritized immediate consequences preferred chocolate chip cookies. In addition, nutritional warnings discouraged choice regardless of participants' time orientation. Results from the present work provide additional evidence of the influence of time preferences on food choices and suggest that strategies to stimulate and generate a more future-oriented perspective on eating habits could contribute to more healthful food choices. Copyright © 2018 Elsevier Ltd. All rights reserved.

  2. Dissolution studies of spent nuclear fuels

    International Nuclear Information System (INIS)

    1991-02-01

    To obtain quantitative data on the dissolution of high burnup spent nuclear fuel, dissolution study have been carried out at the Department of Chemistry, JAERI, from 1984 under the contract with STA entitled 'Reprocessing Test Study of High Burnup Fuel'. In this study PWR spent fuels of 8,400 to 36,100 MWd/t in averaged burnup were dissolved and the chemical composition and distribution of radioactive nuclides were measured for insoluble residue, cladding material (hull), off-gas and dissolved solution. With these analyses basic data concerning the dissolution and clarification process in the reprocessing plant were accumulated. (author)

  3. Study on graphite samples for nuclear usage

    International Nuclear Information System (INIS)

    Suarez, J.C.M.; Silva Roseira, M. da

    1994-01-01

    Available as short communication only. The graphite, due to its properties (mechanical strength, thermal conductivity, high-temperature stability, machinability etc.) have many industrial applications, and consequently, an important strategic value. In the nuclear area, it has been used as moderator and reflector of neutrons in the fission process of uranium. The graphite can be produced from many types of carbonaceous materials by a variety of process dominated by the manufactures. This is the reason why there are in the world market a lot of graphite types with different physical and mechanical properties. The present investigation studies some physical characteristics of the graphite samples destined to use in a nuclear reactor. (author). 8 refs, 1 fig, 1 tab

  4. Market orientated design studies for SOFC based systems

    Energy Technology Data Exchange (ETDEWEB)

    Nietsch, T.; Clark, J.

    1999-07-01

    This report examines the development status of Solid Oxide Fuel Cell (SOFC) technology, assesses its commercial potential for heat and power generation in the UK and identifies key development areas for both the SOFC stack and associated system components. A range of Distributed Generation (DG) and Combined Heat and Power (CHP) applications were considered in arriving at these recommendations. The project commenced with initial surveys of leading SOFC technology companies and centres world-wide. These surveys were conducted in parallel with consultations with key operator organisations in the UK which enabled the requirements of these organisations within the UK Energy Supply Industry to be identified. As a result of the initial survey, over 30 fuel cell based power plants, of size ranging from 1 kW{sub e} to 20 MW{sub e} for both DG and CHP applications, were identified. Outline designs of these applications were then set up and simulated. These candidate systems were then assessed against each other in terms of efficiency, cost of electricity, specific costs, technical risk and market potential for the UK industry. The final ranking obtained was then confirmed with the key operator organisations. On the basis of the ranking process noted above, nine SOFC based power generation/CHP applications were chosen for more detailed investigation in terms of their potential in both UK and overseas markets. Detailed simulations were conducted for each application to allow study of: the influence of efficiency on the economics of the different plants/stacks; the combination of stack and Balance of Plant (BoP) costs; and the cost and availability of key balance of plant devices. These systems were then again assessed in terms of the criteria noted for the outline stage. Finally key development areas for both SOFC stacks and associated Balance of Plant devices were identified. (author)

  5. Study of nuclear data online services

    International Nuclear Information System (INIS)

    Fan Tieshuan; Guo Zhiyu; Liu Wenlong; Ye Weiguo; Feng Yuqing; Song Xiangxiang; Huang Gang; Hong Yingjue; Liu Chi; Liu Tingjin; Chen Jinxiang; Tang Guoyou; Shi Zhaoming; Chen Jia'er; Huang Xiaolong

    2003-01-01

    A web-based nuclear data service software system, NDOS ( Nuclear Data Online Services), has been developed and released in Sep. 2001. Through the Internet, this system distributes charge of free 8 international nuclear databases: 5 evaluated neutron databases (BROND, CENDL, ENDF, JEF and, JENDL), Evaluated Nuclear Structure and Decay File ENSDF, Experimental Nuclear Data Library EXFOR database and IAEA Photonuclear Data Library. A software package, NDVS (Nuclear Data Viewing System), facilitates the visualization and manipulation of nuclear data. The computer programs providing support for database management and data retrievals are based on the Linux implementation of PHP and the MySQL software. (authors)

  6. Theoretical study of nuclear physics with strangeness at Nankai University

    International Nuclear Information System (INIS)

    Ning Pingzhi

    2007-01-01

    Theoretical study of nuclear physics with strangeness from the nuclear physics group at Nankai university is briefly introduced. Theoretical calculations on hyperon mean free paths in nuclear medium have been done. The other 4 topics in the area of strangeness nuclear physics are the effect of different baryon impurities in nucleus, the heavy flavored baryon hypernuclei, the eta-mesons in nuclear matter and the properties of kaonic nuclei. (authors)

  7. The Study of Object-Oriented Motor Imagery Based on EEG Suppression.

    Directory of Open Access Journals (Sweden)

    Lili Li

    Full Text Available Motor imagery is a conventional method for brain computer interface and motor learning. To avoid the great individual difference of the motor imagery ability, object-oriented motor imagery was applied, and the effects were studied. Kinesthetic motor imagery and visual observation were administered to 15 healthy volunteers. The EEG during cue-based simple imagery (SI, object-oriented motor imagery (OI, non-object-oriented motor imagery (NI and visual observation (VO was recorded. Study results showed that OI and NI presented significant contralateral suppression in mu rhythm (p 0.05. Compared with NI, OI showed significant difference (p < 0.05 in mu rhythm and weak significant difference (p = 0.0612 in beta rhythm over the contralateral hemisphere. The ability of motor imagery can be reflected by the suppression degree of mu and beta frequencies which are the motor related rhythms. Thus, greater enhancement of activation in mirror neuron system is involved in response to object-oriented motor imagery. The object-oriented motor imagery is favorable for improvement of motor imagery ability.

  8. Effects of tracheal orientation on development of ventilator-associated pneumonia: an experimental study.

    Science.gov (United States)

    Zanella, Alberto; Cressoni, Massimo; Epp, Myra; Hoffmann, Viktoria; Stylianou, Mario; Kolobow, Theodor

    2012-04-01

    Orientation of the trachea and tracheal tube below horizontal may prevent aspiration of oropharyngeal secretions into the lungs, which is a pivotal pathway in the pathogenesis of ventilator-associated pneumonia (VAP). The incidence of VAP was evaluated in swine with orientation of trachea and tracheal tube above horizontal (model of semirecumbent position, currently recommended in patients) and below horizontal. Twenty-six mini-pigs were randomized into four groups: (A) eight mechanically ventilated with orientation of trachea 45° above horizontal for 72 h. In the remaining groups (B, C, D) the trachea was oriented 10° below horizontal, with (B) six mechanically ventilated for 72 h, (C) six mechanically ventilated for 72 h with enteral feeding, and (D) six mechanically ventilated for 168 h with enteral feeding. At the end of the study period, all pigs were sacrificed and the clinical diagnosis of VAP was microbiologically evaluated. No antibiotics were administered. All eight pigs kept orientated with the trachea 45° above horizontal developed VAP and respiratory failure (PaO(2)/F(i)O(2) = 132 ± 139 mmHg) with a median of 5.5 pulmonary lobes out of 6 colonized with average colonization of 9.3 × 10(7) CFU/g. None of the 18 pigs kept oriented with the trachea below horizontal developed VAP; 16 had sterile lungs, while 2, ventilated for 7 days, developed a low level of colonization. Orientation of the trachea above horizontal was uniformly associated with VAP and respiratory failure; positioning the trachea below horizontal consistently prevented development of VAP.

  9. Social Competence, Cultural Orientations and Gender Differences: A Study of Mandarin-English Bilingual Preschoolers

    Science.gov (United States)

    Ren, Yonggang; Wyver, Shirley

    2016-01-01

    This study investigated whether host and heritage cultural orientations were associated with Chinese preschoolers' social competence and whether such associations varied across gender in Western contexts. Ninety-six Chinese-Australian children aged 36-69 months from 15 childcare centres in Sydney participated in the study. The General Ethnicity…

  10. Impact of Competency-Based and Target-Oriented Training on Employee Performance: A Case Study

    Science.gov (United States)

    Arslan, Ridvan; Uzaslan, N. Tufan

    2017-01-01

    Some firms have applied different in-house training models to keep up with new technological innovations in their specific fields. This study investigated how a target-oriented in-house training programme should be developed and how it should be evaluated for effectiveness. The aim of the study was to develop, implement and evaluate a…

  11. [Object-oriented remote sensing image classification in epidemiological studies of visceral leishmaniasis in urban areas].

    Science.gov (United States)

    Almeida, Andréa Sobral de; Werneck, Guilherme Loureiro; Resendes, Ana Paula da Costa

    2014-08-01

    This study explored the use of object-oriented classification of remote sensing imagery in epidemiological studies of visceral leishmaniasis (VL) in urban areas. To obtain temperature and environmental information, an object-oriented classification approach was applied to Landsat 5 TM scenes from the city of Teresina, Piauí State, Brazil. For 1993-1996, VL incidence rates correlated positively with census tracts covered by dense vegetation, grass/pasture, and bare soil and negatively with areas covered by water and densely populated areas. In 2001-2006, positive correlations were found with dense vegetation, grass/pasture, bare soil, and densely populated areas and negative correlations with occupied urban areas with some vegetation. Land surface temperature correlated negatively with VL incidence in both periods. Object-oriented classification can be useful to characterize landscape features associated with VL in urban areas and to help identify risk areas in order to prioritize interventions.

  12. The Application of KINECT Motion Sensing Technology in Game-Oriented Study

    Directory of Open Access Journals (Sweden)

    Hui Yu Yang

    2014-03-01

    Full Text Available The learning environment based on the KINECT Motion Sensing technology is able to fully mobilize the learners' multi-sensory organs, closely combine study with sports and enhance human-computer interactions, which can be conducive to the learners' health, greatly increase the relishes of learning and promote effective learning in the game, and finally compensate for the shortage of human-computer interactions in the traditional mouse and keyboard mode. The article elaborates on the KINECT Motion Sensing Technology and its educational applications status by analyzing its effective supports for game-oriented studying environment, based on which the article establishes a game-oriented learning environment. Eventually the article reveals an applicable case of game-oriented teaching and learning as a reference for related researches.

  13. Nuclear weapons and nuclear energy - A study in global governance

    International Nuclear Information System (INIS)

    Imai, R.

    1999-01-01

    The projects of the two superpowers concerning the nuclear armament and intercontinental ballistic missiles, the policy of the two governments in monopoly of these armaments and prohibiting other countries from owning them, treaties signed by the governments, and the role of the United Nations and the International Atomic Energy Agency were presented

  14. Nuclear structure studies at Saha Institute of Nuclear Physics using ...

    Indian Academy of Sciences (India)

    In-beam gamma-ray spectroscopy, carried out at the Saha Institute of Nuclear Physics in the recent past, using heavy-ion projectiles from the pelletron accelerator centres in the country and multi-detector arrays have yielded significant data on the structure of a large number of nuclei spanning different mass regions.

  15. Studies in Low-Energy Nuclear Science

    International Nuclear Information System (INIS)

    Brune, Carl R.; Grimes, Steven M.

    2006-01-01

    This report presents a summary of research projects in the area of low energy nuclear reactions and structure, carried out between 1 January 2003 and 31 December 2005 and supported by U.S. DOE grant number DE-FG03-03NA00074. Cross sections measured with high resolution have been subjected to an Ericson theory analysis to infer information about the nuclear level density. Other measurements were made of the spectral shape of particles produced in evaporation processes; these also yield level density information. A major project was the development of a new Hauser-Feshbach code for analyzing such spectra. Other measurements produced information on the spectra of gamma rays emitted in reactions on heavy nuclei and gave a means of refining our understanding of gamma-ray strength functions. Finally,reactions on light nuclei were studied and subjected to an R-matrix analysis. Cross sections fora network of nuclear reactions proceedingthrough a given compound nucleus shouldgreatly constrain the family of allowed parameters. Modifications to the formalism andcomputer code are also discussed.

  16. Studies in Low-Energy Nuclear Science

    International Nuclear Information System (INIS)

    Brune, Carl R.; Grimes, Steven M.

    2010-01-01

    This report presents a summary of research projects in the area of low energy nuclear reactions and structure, carried out between March 1, 2006 and October 31, 2009 which were supported by U.S. DOE grant number DE-FG52-06NA26187. We describe here research into low-energy nuclear reactions and structure. The statistical properties of nuclei have been studied by measuring level densities and also calculating them theoretically. Our approach of measuring level densities via evaporation spectra is able to reach a very wide range of nuclei by using heavy ion beams (we expect to develop experiments using radioactive beams in the near future). Another focus of the program has been on γ-ray strength functions. These clearly impact nuclear reactions, but they are much less understood than corresponding transmission coefficients for nucleons. We have begun investigations of a new approach, using γ-γ coincidences following radiative capture. Finally, we have undertaken several measurements of cross sections involving light nuclei which are important in various applications. The 9 Be(α,n) and B(d,n) reactions have been measured at Ohio University, while neutron-induced reactions have been measured at Los Alamos (LANSCE).

  17. Nuclear thermal propulsion engine cost trade studies

    International Nuclear Information System (INIS)

    Paschall, R.K.

    1993-01-01

    The NASA transportation strategy for the Mars Exploration architecture includes the use of nuclear thermal propulsion as the primary propulsion system for Mars transits. It is anticipated that the outgrowth of the NERVA/ROVER programs will be a nuclear thermal propulsion (NTP) system capable of providing the propulsion for missions to Mars. The specific impulse (Isp) for such a system is expected to be in the 870 s range. Trade studies were conducted to investigate whether or not it may be cost effective to invest in a higher performance (Isp>870 s) engine for nuclear thermal propulsion for missions to Mars. The basic cost trades revolved around the amount of mass that must be transported to low-earth orbit prior to each Mars flight and the cost to launch that mass. The mass required depended on the assumptions made for Mars missions scenarios including piloted/cargo flights, number of Mars missions, and transit time to Mars. Cost parameters included launch cost, program schedule for development and operations, and net discount rate. The results were very dependent on the assumptions that were made. Under some assumptions, higher performance engines showed cost savings in the billions of dollars; under other assumptions, the additional cost to develop higher performance engines was not justified

  18. Safety studies concerning nuclear power reactors

    International Nuclear Information System (INIS)

    Bailly, Jean; Pelce, Jacques

    1980-01-01

    The safety of nuclear installations poses different technical problems, whether concerning pressurized water reactors or fast reactors. But investigating methods are closely related and concern, on the one hand, the behavior of shields placed between fuel and outside and, on the other, analysis of accidents. The article is therefore in two parts based on the same plan. Concerning light water reactors, the programme of studies undertaken in France accounts for the research carried out in countries where collaboration agreements exist. Concerning fast reactors, France has the initiative of their studies owing to her technical advance, which explains the great importance of the programmes under way [fr

  19. The German nuclear power plant safety study

    International Nuclear Information System (INIS)

    1979-01-01

    With this study a new approach has been chosen, taking nuclear power plants as an example to assess and to describe the risks arising from the use of modern technology, including those hazards emanating from the rather hypothetical possibility of occurrence of very serious accidents. Following the definition of basic concepts and methods to be applied in risk assessment studied, as well as a brief account of the design and operating mode of nuclear power plants with PWRs', accidents and failures to be considered in a safety study are described. Using the course-of-event and fault tree analysis, the probability of fission product release as a consequence of failures in safety systems or of core meltdown is evaluated. Subsequently, the theoretical model for assessment of reactor accident consequences is presented, discussing such aspects as the dispersion of radioactivity in the atmosphere, the radiation dose model, safety and countermeasures, the model for the evaluation of health hazards as well as methods and calculations for estimating the reliability of risk assessments together with the remaining uncertainties. In an appendix to this study, the analyses presented in the study are discussed in the light of the TMI-2 event. This safety study showing the possibilities of detecting, keeping in check and minimizing harmful effects, can be regarded as a contribution to a better understanding of our modern, highly industrialised society, and eventually to an improvement of the quality of life. (GL) 891 GL/GL 892 MB [de

  20. Study Orientation Ply of Fiberglass on Blade Salt Water Pump Windmill using Abaqus

    Science.gov (United States)

    Badruzzaman, B.; Sifa, A.

    2018-02-01

    Windmill is one tool to generate energy from wind energy is converted into energy motion, salt production process still using traditional process by utilizing windmill to move sea water to salt field With a windmill driven water system, a horizontal axis type windmill with an average windmill height of 3-4 m, with a potential wind speed of 5-9 m / s, the amount of blade used for salt water pumps as much as 4 blades, one of the main factor of the windmill component is a blade, blade designed for the needs of a salt water pump by using fiberglass material. On layer orientation 0°,30°,45°,60° and 90° with layer number 10 and layer thickness 2 mm, the purpose of this study was to determine the strength of fiberglass that was influenced by the orientation of the layer, and to determine the orientation of fiberglass layer before making. This method used Finite Element Analysis method using ABAQUS, with homogenous and heterogeneous layer parameters. The simulation result shows the difference in von misses value at an angle of 0°, 30°, 45°,60° homogeneous value is greater than heterogeneous value, whereas in orientation 90 heterogeneous values have value 1,689e9 Pa, greater than homogenous 90 orientation value of 1,296e9 Pa.

  1. Researching Connection between Service Orientation and Work Satisfaction: A Study of Hotel Employees (Novi Sad, Serbia

    Directory of Open Access Journals (Sweden)

    Marko D. Petrović

    2012-10-01

    Full Text Available In recent years, researches of service industry put in the centre of many papers the phenomena of the relation between service orientation and work (job satisfaction of the employees in the service sector. It have been analyzed many factors that affect the quality of hotel services and opportunities to improve service processes. One of the most important factor of service quality in the hospitality industry is service orientation of employees. On the other side, if the employees are satisfied with the work they are motivated to satisfy customer needs. The purpose of the paper is to study connections and differences among the hotel employees in service orientation and work satisfaction. To determine these issues, we used service orientation scale, developed by Dienhart, Gregoire, Downey and Knight (1992 and work satisfaction scale developed by Lytle (1994. We expected three factor solution for service orientation scale and uni-factor solution for work satisfaction. The results will be discussed and some practical recommendations will be given.

  2. Tolerability and suitability of brief group mindfulness-oriented interventions in psychiatric inpatients: a pilot study.

    Science.gov (United States)

    Nikolitch, Katerina; Laliberté, Vincent; Yu, Ching; Strychowsky, Natalie; Segal, Marilyn; Looper, Karl J; Rej, Soham

    2016-09-01

    Mindfulness-oriented therapies have a positive impact on patients' overall well-being and alleviate many psychiatric conditions. However, little is known about their use in people with severe mental illness. We aimed to identify which clinical and sociodemographic factors are associated with suitability/tolerability of a brief group mindfulness-oriented therapy. This retrospective study examines pre-/post-data from 40 psychiatric inpatients who underwent one session of a 10-min mindfulness-oriented group intervention between January and March 2014. The main outcome was 'suitability for and tolerating the brief mindfulness-oriented group intervention'. We assessed potential correlates of the main outcome, including female gender, shorter hospitalisation, the absence of psychosis and good pre-morbid functioning. The intervention was well tolerated (92.5%) and 50% of patients met both of our relatively stringent suitability and tolerability criteria. Sociodemographic and clinical variables were not associated with suitability/tolerability. Tai chi was the most suitable/tolerable compared to body scan and mindful eating (76.5% vs. 35.7% vs. 22.2%, Fisher's exact p = 0.01, Bonferroni p mindfulness therapy interventions are very well tolerated and often suitable for acutely hospitalised psychiatric inpatients, including those with acute psychosis. Mindfulness-oriented intervention with an active component (e.g., tai chi, mindful walking) may potentially be best suited for this population.

  3. The Market Orientation and Performance Relationship: An Empirical Study in Private Universities

    Directory of Open Access Journals (Sweden)

    Sefnedi Sefnedi

    2017-06-01

    Full Text Available This study examines the empirical link between three dimensions of market orientation, namely, student orientation, competitor orientation and inter-functional coordination, and private university performance in Kopertis X. The study was based on an empirical investigation of private universities located in Indonesia’s provinces of West Sumatera, Riau, Jambi, and Riau Islands. The primary data for the study were collected from a self-administered mail survey of 237 questionnaires from the private university resulting in a sample of 114 usable responses being returned. From the application of the multiple regression analysis it was concluded that all three dimensions of market orientation had a significant impact on private university performance. Student orientation as a predictor variable is the strongest predictor of private university performance then followed by competitor orientation, and inter-functional coordination. Bahasa Indonesia Abstrak: Penelitian ini menguji hubungan empiris antara tiga dimensi orientasi pasar, yaitu, orientasi mahasiswa, orientasi pesaing dan koordinasi antar-fungsional dan kinerja perguruan tinggi swasta di Kopertis X. Penelitian ini didasarkan pada penyelidikan empiris pada universitas swasta yang berada di provinsi Sumatera Barat, Riau, Jambi, dan Kepulaian Riau. Data primer dikumpulkan dari survei dimana dari 237 kuesioner yang disebarkan pada universitas swasta, diperoleh 114 kuesioner yang dikembalikan dan dapat digunakan sebagai sampel. Berdasarkan hasil analisis regresi berganda dapat disimpulkan bahwa ketiga dimensi orientasi pasar memiliki dampak yang signifikan terhadap kinerja perguruan tinggi swasta. Orientasi mahasiswa sebagai variabel prediktor terkuat terhadap kinerja perguruan tinggi swasta kemudian diikuti oleh orientasi pesaing, dan koordinasi antar-fungsional.

  4. A Study on Research Trend in Nuclear Forensics

    International Nuclear Information System (INIS)

    Kim, Kyungmin; Yim, Hobin; Lee, Seungmin; Hong, Yunjeong; Kim, Jae Kwang

    2014-01-01

    The international community has recognized the serious threat posed by nuclear and other radioactive material out of regulatory control. To address these concerns, the Office of Nuclear Security of the international Atomic Energy Agency (IAEA) is developing, inter alia, guidance for nuclear forensics to assist Member States. According to the IAEA Incident and Trafficking Database (ITDB) of the IAEA to record the illegal trade and trafficking incidents of nuclear material or other radioactive material, incidents of 2331 have been reported in 1993 to 2012. These incidents mean that we are not safe for nuclear material. In order to solve the case generated by the illicit trafficking of nuclear material and the efficient management of nuclear material, the study of nuclear forensics is very important. In this study, we investigated the analytical techniques and the current status of nuclear forensics research. In this study, we investigated the current status of research of nuclear forensics, procedures for analysis and nuclear forensics analysis technique. A result of the study, we have been found that the major institutes and laboratory actively research on analysis technique and nuclear forensics. However, research on nuclear forensics is still in early stage, ROK is necessary preliminary survey of analysis technique and foundation of physical, chemical, and morphology characteristics of nuclear materials

  5. Monte Carlo simulation of nuclear energy study (II). Annual report on Nuclear Code Evaluation Committee

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-01-01

    In the report, research results discussed in 1999 fiscal year at Nuclear Code Evaluation Committee of Nuclear Code Research Committee were summarized. Present status of Monte Carlo simulation on nuclear energy study was described. Especially, besides of criticality, shielding and core analyses, present status of applications to risk and radiation damage analyses, high energy transport and nuclear theory calculations of Monte Carlo Method was described. The 18 papers are indexed individually. (J.P.N.)

  6. Case Study of Oriental Medicine Treatment with acupotomy Therapy of the Achilles Tendinitis

    Directory of Open Access Journals (Sweden)

    Jang Eun-ha

    2008-12-01

    Full Text Available Purpose : In order to estimate clinical effects of Oriental Medicine Treatment with acupotomy therapy of Achilles Tendinitis Methods : From 4th August, 2008 to 14th August, 2008, 1 female patient diagnosed as Chronic Achilles Tendinitis (clinical diagnosed was treated with general oriental medicine therapy(acupuncture, moxibustion, cupping, physical therapy, herbal medication and acupotomy. Results : The patient's chief complaints- Lt. heel pain and stiffness, dorsi-flexion limitation, nodules in the achilles tendon- were notably improved. Conclusions : This study demonstrates that oriental medical treatment with acuputomy therapy has significant effect in improving symptoms of achilles tendinitis. as though we had not wide experience in this treatment, more research is needed.

  7. Studies of permittivity and permeability of dielectric matrix with cuboid metallic inclusions in different orientations

    Directory of Open Access Journals (Sweden)

    W. M. Wu

    2014-10-01

    Full Text Available In this paper, we investigate the possibility of using the heterogeneous materials, with cuboid metallic inclusions inside a dielectric substrate (host to control the effective permittivity. We find that in the gigahertz range, such a material demonstrates a significantly larger permittivity compared to the pure dielectric substrate. Three principal orientations of microscale cuboid inclusions have been taken into account in this study. The highest permittivity is observed when the orientation provides the largest polarization (electric dipole moment. The detrimental side effect of the metallic inclusion, which leads to the decrease of the effective magnetic permeability, can be suppressed by the proper choice of shape and orientation of the inclusions. This choice can in fact reduce the induced current and hence maximize the permeability. The dissipative losses are shown to be negligible in the relevant range of frequencies and cuboid dimensions.

  8. An Empirical Study on Entrepreneurial Orientation, Absorptive Capacity, and SMEs’ Innovation Performance: A Sustainable Perspective

    Directory of Open Access Journals (Sweden)

    Yu-Ming Zhai

    2018-01-01

    Full Text Available Using a survey of 324 small and medium-sized enterprises (SMEs of the Yangtze River Delta in China, this study discusses the relationship between entrepreneurial orientation, absorptive capacity, environmental dynamism, and corporate technological innovation performance. The results based on a moderated moderation model show that the relationship between entrepreneurial orientation and innovation performance is significantly positive. The absorptive capacity can positively moderate this relationship. When the external environment is in high dynamism, the moderating effect of absorptive capacity will be stronger than when the environment is in low dynamism.

  9. Theoretical study of alignment and orientation of n = 2 levels in Li++He collision

    International Nuclear Information System (INIS)

    Courbin, C.; Sidis, V.

    1986-01-01

    The determination of alignment and orientation parameters from differential cross section measurements involving the photon-particle coincidence technique prompts theory to investigate a wide variety of electronic transitions both at small and large distances of approach between the collision partners. A theoretical model is presented with a view to explaining alignment and orientation phenomena related to Li + +He*(2 1 P) excitation and Li*(2 2 P)+He + charge exchange excitation in the prototype Li + +He collision. The corresponding discussion is illustrated using a recent ab initio study by the authors [fr

  10. Energy policy study. Volume 10. Nuclear power regulation

    International Nuclear Information System (INIS)

    Nikodem, Z.D.; Reynolds, A.W.; Clark, R.G.

    1980-05-01

    This report examines the programs for regulating the safety, design, and operation of domestic nuclear power plants. The first part of the study describes the Federal and State regulatory procedures. It describes the legal foundations for the Federal licensing process and the associated State regulatory activities. It then analyzes the aspects of these procedures that affect the cost and supply of nuclear-generated electricity. The second part of this study examines the effects of nuclear safety regulations on the planning and construction lead time for nuclear power stations, the cost of nuclear power, and, ultimately, the decision to invest in nuclear power

  11. Study of Iodine Prophylaxis Following Nuclear Accidents

    International Nuclear Information System (INIS)

    Sri Widayati; Tedjasari, R. S.; Elfida

    2007-01-01

    Study of iodine prophylaxis following nuclear accidents has been done. Giving stable iodine to a population exposed by I-131 is one of preventive action from internal radiation to the thyroid gland. Stable iodine could be given as Kl tablet in a range of dose of 30 mg/day to 130 mg/day. Improper giving of stable iodine could cause side effect to health, so then some factors should be considered i. e. dose estimation, age, dose of stable iodine to be given, duration of stable iodine prophylaxis and risk of health. (author)

  12. Nuclear-Powered GPS Spacecraft Design Study

    Energy Technology Data Exchange (ETDEWEB)

    Raab, Bernard

    1977-05-01

    This is the final report of a study to investigate the potential benefits of a nuclear (radioisotope) - powered satellite for advanced phases of the Global Positioning System (GPS) program. The critical parameters were: power to user; mean mission duration; orbital predictability; thermal control of on-board frequency standards; and vulnerability. The reference design approach is described, and input data are given for two power systems that are under development: an organic Rankine system and a Brayton cycle system. Reference design details are provided and structural design and analysis are discussed, as well as thermal design and analysis. A higher altitude version is also considered.

  13. A new spin-oriented nuclei facility: POLAREX

    Directory of Open Access Journals (Sweden)

    Etilé A.

    2014-03-01

    Full Text Available Using the On-Line Nuclear Orientation method, POLAREX (POLARization of EXotic nuclei is a new facility allowing to study the anisotropic decay of spin-oriented nuclei. Based on the combination of on-line implantation of radioactive nuclei with Low Temperature Nuclear Orientation technique and Nuclear Magnetic Resonance, POLAREX allows to measure nuclear electromagnetic moments and ground-state spins, in the aim to get information about the wave function composition of the nuclear state. Polarized nuclei can also be used to study fundamental interactions involving nuclear β-decay asymmetries. The POLAREX infrastructure will be installed at Accélérateur Linéaire auprés du Tandem d’Orsay in order to study neutron-rich nuclei, some of which have not been studied yet. Will be presented here, all the possibilities of this new facility and a non exhaustive scientific program.

  14. Social Studies Oriented Achievement Goal Scale (SOAGS: Validity and Reliability Study

    Directory of Open Access Journals (Sweden)

    Melehat GEZER

    2016-12-01

    Full Text Available This study aims to develop a valid and reliable instrument for measuring students' social studies achievement goal. The research was conducted on a study group consisted of 374 middle school students studying in the central district of Diyarbakır in 2014-2015 school year fall semester. Expert opinion was consulted with regard to the scale's content and face validity. Exploratory Factor Analysis (EFA and Confirmatory Factor Analysis (CFA were performed in order to measure the scale's construct validity. As a result of EFA, a 29-item and a six-factor structure model which explains 50.82% of the total variance was obtained. The emerging factors were called as a self-approach, task-approach, other-approach, task-avoidance, other-avoidance and self-avoidance respectively. The findings acquired CFA indicated that the 29-item and six-factor structure related to social studies oriented achievement goal scale have acceptable goodness of fit indices. The scale's reliability coefficients were calculated by means of internal consistency method. As a result of reliability analysis, it was determined that the reliability coefficients were within admissible limits. The finding of the item correlation and 27% of upper and lower group comparisons demonstrated that all of the items in the scale should remain. In light of these results, it could be argued that the scale is reliable and valid instrument and can be used in order to test students' social studies achievement goals.

  15. High-spin nuclear target of 178m2Hf: creation and nuclear reaction studies

    International Nuclear Information System (INIS)

    Oganessyan, Yu.Ts.; Karamyan, S.A.; Gangrskij, Yu.P.

    1993-01-01

    A long-lived (31 years) four-quasiparticle isomer 178m 2 Hf(I,K π =16,16 + ) was produced in microweight quantities using the nuclear reaction 176 Yb( 4 He, 2n). Methods of precision chemistry and mass-separation for the purification of the produced Hf material have been developed. Thin targets of isomeric hafnium-178 on carbon backings were prepared and used in experiments on a neutron, proton and deuteron beams. First results on nuclear reactions on a high-spin exotic target were obtained. Experiments on electromagnetic interactions of the isomeric hafnium using methods of the collinear laser spectroscopy as well as of the nuclear orientation of hafnium implanted into a crystalline media were started. 11 refs.; 11 figs.; 2 tabs

  16. The effects of advertising on children’s materialistic orientations: a longitudinal study

    NARCIS (Netherlands)

    Opree, S.; Buijzen, M.; Valkenburg, P.; van Reijmersdal, E.

    2011-01-01

    Previous studies have suggested that advertising exposure affects materialistic orientations among youth. However, this causal effect has not been investigated among 8- to 11-year olds, who are in the midst of consumer development. Furthermore, the mechanisms underlying this relation have not been

  17. Parental Cultural Orientation, Shyness, and Anxiety in Hispanic Children: An Exploratory Study

    Science.gov (United States)

    Gudino, Omar G.; Lau, Anna S.

    2010-01-01

    This study examined associations between parental cultural orientation, childhood shyness, and anxiety symptoms in a sample of Hispanic American children (N = 127). Parents completed measures of their level of acculturation, collectivism, and socialization goals, while children provided self-reports of anxiety symptoms and both parents and…

  18. Predicting factors of positive orientation and attitudes towards nursing : A quantitative cross-sectional study

    NARCIS (Netherlands)

    Ten Hoeve, Yvonne; Castelein, Stynke; Jansen, Wiebren; Jansen, Gerard; Roodbol, Petrie

    Background: Previous studies have identified various reasons for students to choose a career in nursing. Students at the start of their programme hold a great variety of images and perceptions of nursing which can affect their orientation and attitudes towards their future profession. Objectives:

  19. A Study of the Need to Establish a Market-oriented Culture in ...

    African Journals Online (AJOL)

    A Study of the Need to Establish a Market-oriented Culture in Educational ... critical in getting the word out to the target market, i.e. learners and parents, that the institution ... A typical marketing mix for developing an effective marketing strategy, ...

  20. Students’ goal orientations and learning strategies in a powerful learning environment : a case study

    NARCIS (Netherlands)

    Koopman, M.; Bakx, A.W.E.A.; Beijaard, D.

    2014-01-01

    In Dutch secondary education, experiments with powerful social constructivist learning environments are conducted that aim to appeal to students’ intrinsic goal orientations, use of deep cognitive learning strategies, and self-direction of meta-cognitive learning strategies. The aim of this study is

  1. Nursing students' changing orientation and attitudes towards nursing during education : A quantitative cross-sectional study

    NARCIS (Netherlands)

    Ten Hoeve, Yvonne; Castelijn, Stynke; Jansen, W.S.; Jansen, Gerard; Roodbol, Petri

    Previous studies have identified various reasons for students to choose a career in nursing. Students at the start of their programme hold a great variety of images and perceptions of nursing which can affect their orientation and attitudes towards their future profession.

  2. A Study of the Need to Establish a Market-oriented Culture in ...

    African Journals Online (AJOL)

    A Study of the Need to Establish a Market-oriented Culture in Educational Institutions in Zimbabwe. ... The promotional culture of marketing is critical in getting the word out to the target market, i.e. ... EMAIL FULL TEXT EMAIL FULL TEXT

  3. Exploring the service-oriented enterprise : Drawing lessons from a case study

    NARCIS (Netherlands)

    Janssen, M.F.W.H.A.

    2008-01-01

    The service-oriented enterprise (SOE) is often considered as the future model of organization. Yet there is little empirical research in this domain and limited insight into the benefits and disadvantages. In this paper we analyze a case study of a large, multinational banking company. This company

  4. The link between family orientation, strategy, and innovation in Dutch SMEs : A longitudinal study

    NARCIS (Netherlands)

    Uhlaner, L.M.; Kemp, R.; Tan, S.

    2006-01-01

    This study aimed at identifying some of the factors determining innovation performance in the SME. Based on a sample of 388 Dutch SME's, hypotheses were tested in particular regarding the main effects of strategy, and the direct and indirect efects of family orientation on firm performance. The

  5. Nuclear reaction studies using inverse kinematics

    International Nuclear Information System (INIS)

    Shapira, D.

    1985-01-01

    Reaction studies with reversed kinematics refer to studies of nuclear reactions induced by a heavy projectile colliding with lighter target nuclei. The technique of using reversed kinematics is costly in terms of the available center-of-mass energy. Most of the projectile's energy goes into forward motion of the reaction products in the laboratory system. Examples are presented where the use of reversed kinematics techniques has provided new information on certain reaction processes. A list of kinematic properties and advantages they may afford is shown. Clearly the possible studies listed can be done without using reversed kinematics but because of the difficulty associated with some of these studies they were never performed until more energetic heavier beams have become available and the reversed kinematics technique was utilized

  6. Hanford Nuclear Energy Center: a conceptual study

    Energy Technology Data Exchange (ETDEWEB)

    Harty, H. (comp.)

    1978-09-30

    The objective of the study is to develop an improved understanding of the nuclear energy center (NEC) concept and to identify research and development needed to evaluate the concept fully. A specific context was selected for the study--the Hanford site. Thus, the study primarily addresses the HNEC concept, but the findings are extrapolated to generic NECs where possible. The major emphasis in the HNEC study was to explore potential technical and environmental problems in a specific context and in sufficient detail to evaluate potential problems and propose practical solutions. The areas of concern are typical of those considered in preparing environmental and safety analysis reports, including: topics dealing with engineering choices (e.g., site selection, heat sink management, electrical transmission, and reliability of generation); environmental matters (e.g., terrestrial and radiological effects); socioeconomic factors (e.g., community impacts); and licensing considerations.

  7. Memphis State University Center for Nuclear Studies progress report

    International Nuclear Information System (INIS)

    1976-01-01

    This quarterly report outlines the progress made by the Center for Nuclear Studies at Memphis State University in the development of specialized educational programs for the nuclear industry through the month of February, 1976

  8. Strategic Orientation for Improving Financial Performance Case Study in Al-Qadissiya Governorate Banking

    Directory of Open Access Journals (Sweden)

    Basim Abbas Kraidy JASSMY

    2017-06-01

    Full Text Available This study investigated the relationships between market turbulence, competitive intensity, customer orientation, competitor orientation, inter-functional coordination, organizational commitment and financial performance in the banks of Al-Qadissya governorate. A survey questionnaire was conducted for investigation and data was collected from 170 mangers that work in these banks. To test these relationships, the authors examined all the variables under (SPSS V 20. In order to reveal the effects of the variables, the findings showed that market instability and competitive intensity have effect on strategic orientation, while market instability has no effect on organizational commitment and financial performance. At the same time, inter-functional coordination has no effect on organizational commitment. Furthermore, the study findings showed correlations between competitive intensity and organizational commitment, while there is no correlation between competitive intensity and financial performance. At last, organizational commitment influences financial performance. According to the study results could be improved by all types of strategic orientation and enhance organizational commitment that increase financial performance.

  9. STUDY CONCERNING THE ELABORATION OF CERTAIN ORIENTATION MODELS AND THE INITIAL SELECTION FOR SPEED SKATING

    Directory of Open Access Journals (Sweden)

    Vaida Marius

    2009-12-01

    Full Text Available In realizing this study I started from the premise that, by elaborating certain orientation models and initial selection for the speed skating and their application will appear superior results, necessary results, taking into account the actual evolution of the high performance sport in general and of the speed skating, in special.The target of this study has been the identification of an orientation model and a complete initial selection that should be based on the favorable aptitudes of the speed skating. On the basis of the made researched orientation models and initial selection has been made, things that have been demonstrated experimental that are not viable, the study starting from the data of the 120 copies, the complete experiment being made by 32 subjects separated in two groups, one using the proposed model and the other formed fromsubjects randomly selected.These models can serve as common working instruments both for the orientation process and for the initial selection one, being able to integrate in the proper practical activity, these being used easily both by coaches that are in charge with the proper selection of the athletes but also by the physical education teachers orschool teachers that are in contact with children of an early age.

  10. REIMR - A Process for Utilizing Liquid Rocket Propulsion-Oriented 'Lessons Learned' to Mitigate Development Risk in Nuclear Thermal Propulsion

    International Nuclear Information System (INIS)

    Ballard, Richard O.

    2006-01-01

    This paper is a summary overview of a study conducted at the NASA Marshall Space Flight Center (NASA-MSFC) during the initial phases of the Space Launch Initiative (SLI) program to evaluate a large number of technical problems associated with the design, development, test, evaluation and operation of several major liquid propellant rocket engine systems (i.e., SSME, Fastrac, J-2, F-1). One of the primary results of this study was the identification of the 'Fundamental Root Causes' that enabled the technical problems to manifest, and practices that can be implemented to prevent them from recurring in future propulsion system development efforts, such as that which is currently envisioned in the field of nuclear thermal propulsion (NTP). This paper will discus the Fundamental Root Causes, cite some examples of how the technical problems arose from them, and provide a discussion of how they can be mitigated or avoided in the development of an NTP system

  11. REIMR - A Process for Utilizing Liquid Rocket Propulsion-Oriented 'Lessons Learned' to Mitigate Development Risk in Nuclear Thermal Propulsion

    Science.gov (United States)

    Ballard, RIchard O.

    2006-01-01

    This paper is a summary overview of a study conducted at the NASA Marshall Space Flight Center (NASA MSFC) during the initial phases of the Space Launch Initiative (SLI) program to evaluate a large number of technical problems associated with the design, development, test, evaluation and operation of several major liquid propellant rocket engine systems (i.e., SSME, Fastrac, J-2, F-1). One of the primary results of this study was the identification of the Fundamental Root Causes that enabled the technical problems to manifest, and practices that can be implemented to prevent them from recurring in future propulsion system development efforts, such as that which is currently envisioned in the field of nuclear thermal propulsion (NTF). This paper will discuss the Fundamental Root Causes, cite some examples of how the technical problems arose from them, and provide a discussion of how they can be mitigated or avoided in the development of an NTP system

  12. EDITORIAL: Optical orientation Optical orientation

    Science.gov (United States)

    SAME ADDRESS *, Yuri; Landwehr, Gottfried

    2008-11-01

    priority of the discovery in the literature, which was partly caused by the existence of the Iron Curtain. I had already enjoyed contact with Boris in the 1980s when the two volumes of Landau Level Spectroscopy were being prepared [2]. He was one of the pioneers of magneto-optics in semiconductors. In the 1950s the band structure of germanium and silicon was investigated by magneto-optical methods, mainly in the United States. No excitonic effects were observed and the band structure parameters were determined without taking account of excitons. However, working with cuprous oxide, which is a direct semiconductor with a relative large energy gap, Zakharchenya and his co-worker Seysan showed that in order to obtain correct band structure parameters, it is necessary to take excitons into account [3]. About 1970 Boris started work on optical orientation. Early work by Hanle in Germany in the 1920s on the depolarization of luminescence in mercury vapour by a transverse magnetic field was not appreciated for a long time. Only in the late 1940s did Kastler and co-workers in Paris begin a systematic study of optical pumping, which led to the award of a Nobel prize. The ideas of optical pumping were first applied by Georges Lampel to solid state physics in 1968. He demonstrated optical orientation of free carriers in silicon. The detection method was nuclear magnetic resonance; optically oriented free electrons dynamically polarized the 29Si nuclei of the host lattice. The first optical detection of spin orientation was demonstrated by with the III-V semiconductor GaSb by Parsons. Due to the various interaction mechanisms of spins with their environment, the effects occurring in semiconductors are naturally more complex than those in atoms. Optical detection is now the preferred method to detect spin alignment in semiconductors. The orientation of spins in crystals pumped with circularly polarized light is deduced from the degree of circular polarization of the recombination

  13. Feasibility study on floating nuclear power station

    International Nuclear Information System (INIS)

    Kajima, Ryoichi

    1987-01-01

    It is stipulated that nuclear power plants are to be built on solid rock bases on land in Japan. However, there are a limited number of appropriate siting grounds. The Central Research Institute of Electric Power Industry has engaged since 1981 in the studies on the construction technology of power plants, aiming at establishing new siting technology to expand the possible siting areas for nuclear power plants. Underground siting is regarded as a proven technology due to the experience in underground hydroelectric power plants. The technology of siting on quaternary ground is now at the stage of verification. In this report, the outline of floating type offshore/inshore siting technology is introduced, which is considered to be feasible in view of the technical and economical aspects. Three fixed structure types were selected, of which the foundations are fixed to seabed, plant superstructures are above sea surface, and which are floating type. Aiming at ensuring the aseismatic stability of the plant foundations, the construction technology is studied, and the structural concept omitting buoyancy is possible. The most practical water depth is not more than 20 m. The overall plant design, earthquake isolation effect and breakwater are described. (Kako, I.)

  14. Nuclear cancellations follow-on study

    Energy Technology Data Exchange (ETDEWEB)

    1982-01-29

    The serious reduction in the aggregate commitment to nuclear power by US utilities over the past few years, as well as the serious stretchout of the completion schedules for many ongoing projects, has continued. A 1980 study which studied the factors causing this retrenchment is discussed. In this 1982 study, utilities were interviewed in an attempt to identify possible remedies which the Federal government might take to induce utilities to postpone rather than cancel units less than 10% complete, and to complete expeditiously units in the 10 to 60% completion range. The quality of the reserve margin is examined. The actions of state regulators are considered. Regulatory reform emerges as the key action the Federal government can take. (DLC)

  15. European nuclear data studies for fast systems

    International Nuclear Information System (INIS)

    Rullhusen, P.; Hambsch, F.-J.; Mondelaers, W.; Plompen, A.J.M.; Schillebeeckx, P.

    2010-01-01

    Nuclear data needs for fast systems are highlighted and the following projects are described: Joint European research projects: MUSE Experiments for Sub-critical Neutronics Validation; High- and Intermediate Energy Nuclear Data for ADS (HINDAS); and the Time-Of-Flight facility for Nuclear Data Measurements for ADS (n T OF N D A DS); European Research Programme for the Transmutation of High Level Nuclear Waste in an Accelerator Driven System (EUROTRANS-NUDATRA); and CANDIDE; Programmes for transnational access to experimental facilities in Europe: European Facilities for Nuclear Data Measurements (EFNUDAT); Neutron Data Measurements at IRMM (NUDAME); European facility for innovative reactor and transmutation neutron data (EUFRAT) (P.A.)

  16. Study Of Thorium As A Nuclear Fuel.

    Directory of Open Access Journals (Sweden)

    Prakash Humane

    2017-10-01

    Full Text Available Conventional fuel sources for power generation are to be replacing by nuclear power sources like nuclear fuel Uranium. But Uranium-235 is the only fissile fuel which is in 0.72 found in nature as an isotope of Uranium-238. U-238 is abundant in nature which is not fissile while U-239 by alpha decay naturally converted to Uranium- 235. For accompanying this nuclear fuel there is another nuclear fuel Thorium is present in nature is abundant can be used as nuclear fuel and is as much as safe and portable like U-235.

  17. Perception of Sexual Orientation from Facial Structure: A Study with Artificial Face Models.

    Science.gov (United States)

    González-Álvarez, Julio

    2017-07-01

    Research has shown that lay people can perceive sexual orientation better than chance from face stimuli. However, the relation between facial structure and sexual orientation has been scarcely examined. Recently, an extensive morphometric study on a large sample of Canadian people (Skorska, Geniole, Vrysen, McCormick, & Bogaert, 2015) identified three (in men) and four (in women) facial features as unique multivariate predictors of sexual orientation in each sex group. The present study tested the perceptual validity of these facial traits with two experiments based on realistic artificial 3D face models created by manipulating the key parameters and presented to Spanish participants. Experiment 1 included 200 White and Black face models of both sexes. The results showed an overall accuracy (0.74) clearly above chance in a binary hetero/homosexual judgment task and significant differences depending on the race and sex of the face models. Experiment 2 produced five versions of 24 artificial faces of both sexes varying the key parameters in equal steps, and participants had to rate on a 1-7 scale how likely they thought that the depicted person had a homosexual sexual orientation. Rating scores displayed an almost perfect linear regression as a function of the parameter steps. In summary, both experiments demonstrated the perceptual validity of the seven multivariate predictors identified by Skorska et al. and open up new avenues for further research on this issue with artificial face models.

  18. Salespeople's Renqing Orientation, Self-esteem, and Selling Behaviors: An Empirical Study in Taiwan.

    Science.gov (United States)

    Tsai, Ming-Hong; Chi, Shu-Cheng Steve; Hu, Hsiu-Hua

    2009-06-01

    PURPOSE: The purpose of this study was to investigate how salespeople's renqing orientation and self-esteem jointly affect their selling behavior. DESIGN/METHODOLOGY/APPROACH: Data were obtained from a survey of salespeople from 17 pharmaceutical and consumer-goods companies in Taiwan (n = 216). FINDINGS: Salespeople's renqing orientation (i.e., their propensity to adhere to the accepted norm of reciprocity) compensates the negative effect of self-esteem on their selling behaviors, such as adaptive selling and hard work. IMPLICATIONS: Our study results underscore the critical role of the character trait of renqing orientation in a culture emphasizing a norm of reciprocity. Therefore, it would be useful to consider a strategy of recruiting salespeople with either a high self-esteem or a combination of high renqing orientation and low self-esteem. ORIGINALITY/VALUE: The existing literature of industrial/organizational psychology and marketing primarily relies on constructs that are derived from Western cultural contexts. However, the present paper extended these literatures by investigating the possible joint effects of self-esteem with a trait originated from the Chinese culture on salespeople's selling behaviors.

  19. Advanced nuclear systems. Review study; Fortgeschrittene Nuklearsysteme. Review Study

    Energy Technology Data Exchange (ETDEWEB)

    Liebert, Wolfgang; Glaser, Alexander; Pistner, Christoph [Interdisziplinaere Arbeitsgruppe Naturwissenschaft, Technik und Sicherheit (IANUS), Darmstadt University of Technology, Hochschulstrasse 10, D-64289 Darmstadt (Germany); Baehr, Roland; Hahn, Lothar [Institute for applied ecology (Oeko-Institut), Elisabethenstrasse 55-57, D-64283 Darmstadt (Germany)

    1999-04-01

    The task of this review study is to from provide an overview of the developments in the field of the various advanced nuclear systems, and to create the basis for more comprehensive studies of technology assessment. In an overview the concepts for advanced nuclear systems pursued worldwide are subdivided into eight subgroups. A coarse examination raster (set pattern) is developed to enable a detailed examination of the selected systems. In addition to a focus on enhanced safety features, further aspects are also taken into consideration, like the lowering of the proliferation risk, the enhancement of the economic competitiveness of the facilities and new usage possibilities (for instance concerning the relaxation of the waste disposal problem or the usage of alternative fuels to uranium). The question about the expected time span for realization and the discussion about the obstacles on the way to a commercially usable reactor also play a substantial role as well as disposal requirements as far as they can be presently recognized. In the central chapter of this study, the documentation of the representatively selected concepts is evaluated as well as existing technology assessment studies and expert opinions. In a few cases where this appears to be necessary, according technical literature, further policy advisory reports, expert statements as well as other relevant sources are taken into account. Contradictions, different assessments and dissents in the literature as well as a few unsettled questions are thus indicated. The potential of advanced nuclear systems with respect to economical and societal as well as environmental objectives cannot exclusively be measured by the corresponding intrinsic or in comparison remarkable technical improvements. The acceptability of novel or improved systems in nuclear technology will have to be judged by their convincing solutions for the crucial questions of safety, nuclear waste and risk of proliferation of nuclear weapons

  20. Perceived nuclear risk, organizational commitment, and appraisals of management: A study of nuclear power plant personnel

    International Nuclear Information System (INIS)

    Kivimaeki, M.; Kalimo, R.; Salminen, S.

    1995-01-01

    This study examined to what extent nuclear risk perceptions, organizational commitment (OC), and appraisals of management are associated with each other among nuclear power plant personnel. The sample consisted of 428 nuclear power plant workers who completed a questionnaire at their workplace. Perceived nuclear risk and OC were most closely related to the appraisals of the top management of the organization. As the trust in and satisfaction with the top management increased, perceived nuclear safety and acceptance of the organizational goals and values heightened. This result is discussed in the context of industrial safety management. 29 refs., 2 tabs

  1. Hot hardness studies on zircaloy 2 pressure tube along three orientations

    International Nuclear Information System (INIS)

    Kutty, T.R.G.; Ravi, K.; Jarvis, T.; Sengupta, A.K.; Majumdar, S.; Tewari, R.; Shrivastava, D.; Dey, G.K.

    2002-01-01

    Zirconium based alloys are the natural choice for both the fuel element cans and in-core structural components in water cooled nuclear reactors. In this paper, the hot hardness behaviour of zircaloy 2 pressure tubes has been examined from room temperature to 400 degC using a hot hardness tester. For the purpose of comparison, the hardness of the as cast and room temperature rolled specimens has also been carried out. For this, the samples were cut along three orientations and hardness was measured in each of these directions using Vickers diamond pyramid indenter. The variation in hardness of the pressure tube samples show that the hardness was highest along circumferential direction and least along the axial direction. The room temperature rolled samples showed highest hardness along the rolling planes. These variations in hardness could be explained in terms of development of texture during working on the material. (author)

  2. Nuclear deterrence in second tier nuclear weapon states: a case study of India

    International Nuclear Information System (INIS)

    Sethi, Manpreet

    2009-12-01

    Nuclear deterrence today anchors the national security of all states that possess nuclear weapons. Certain principles or requirements of nuclear deterrence are the same for all such countries. For instance, the ability to threaten with unacceptable damage, or the ability to raise the costs of an action that an adversary might want to take by threatening punishment that would make the act seem meaningless and even regrettable. But must every nuclear nation indulge in an exercise of large-scale warhead accumulation or yield refinements through nuclear testing, or creation of elaborate nuclear war fighting plans in order to claim credible deterrence? Can the practice of deterrence in the second tier states follow a different course? The study examines the manner in which India is engaged in constructing a credible and stable deterrence relationship with two of its nuclear armed adversaries, Pakistan and China with an arsenal much smaller, and command and control structures far simpler than in any of the P-5 nations. Does this difference impact the nature of its nuclear deterrence? In its efforts at creating and sustaining credible nuclear deterrence should India necessarily be expected to follow the same path and rules as those of the P-5? Would it be compelled to build hundreds of warheads and a huge weapons infrastructure? Would a deterrence based on anything less not be credible or stable? The study concludes that even countries with small nuclear arsenals behave no differently from states that possess several thousands of such weapons. The assumption that small nuclear arsenals and rudimentary command and control lend themselves to temptations of easy nuclear use is misplaced. Credible nuclear deterrence between India and Pakistan or India and China would hold on the same bases it has held elsewhere - fear of nuclear destruction, imposition of unacceptable damage, and the ability to rationally calculate and weigh the benefits against the costs of use of nuclear

  3. Developing a Study Orientation Questionnaire in Mathematics for primary school students.

    Science.gov (United States)

    Maree, Jacobus G; Van der Walt, Martha S; Ellis, Suria M

    2009-04-01

    The Study Orientation Questionnaire in Mathematics (Primary) is being developed as a diagnostic measure for South African teachers and counsellors to help primary school students improve their orientation towards the study of mathematics. In this study, participants were primary school students in the North-West Province of South Africa. During the standardisation in 2007, 1,013 students (538 boys: M age = 12.61; SD = 1.53; 555 girls: M age = 11.98; SD = 1.35; 10 missing values) were assessed. Factor analysis yielded three factors. Analysis also showed satisfactory reliability coefficients and item-factor correlations. Step-wise linear regression indicated that three factors (Mathematics anxiety, Study attitude in mathematics, and Study habits in mathematics) contributed significantly (R2 = .194) to predicting achievement in mathematics as measured by the Basic Mathematics Questionnaire (Primary).

  4. Microscopic hydrodynamics study with nuclear track membrane

    International Nuclear Information System (INIS)

    Shilun Guo; Yuhua Zhao; Yulan Wang; Hiuhong Hao; Brandt, R.; Vater, P.

    1988-01-01

    Microscopic hydrodynamics has been studied using different liquids and nuclear track membranes with pores perpendicularly piercing through them. The flow rate of water and alcohol has been studied with polycarbonate track membranes with pore diameters 1.48 micrometres and 1.08 micrometres. It has been shown that the flow rate both for water and alcohol on a microscopic scale can be determined by the Poiseuille law which characterizes macroscopic laminar flow. The Reynolds number used in macroscopic fluid flow has been calculated from the flow rate and parameters of the liquids and the geometry of the pores. It has been shown that this Reynolds number can also be used to characterize microscopic flow. Based on the above results, the filtration capacity (or limit) of polycarbonate track microfilters for water had been calculated. Some possible limits on the application of the calculation are pointed out and discussed. (author)

  5. Construction of an apparatus for nuclear orientation measurements at low temperatures. Application to neodymium-cobalt alloy

    International Nuclear Information System (INIS)

    Mayer, E.

    1965-10-01

    We describe experiments along which has been studied the anisotropy of γ radiations emitted by oriented nuclei. We have used the great hyperfine fields acting on nuclei in ferromagnetic metals so as to produce alignment at low temperature. By irradiation we obtained a few cobalt 60 nuclei in our samples which were then cooled down to 0,01 K. The anisotropic rate of the 1,33 MeV γ radiation was measured in function of the sample temperature, using as thermometer the anisotropy of γ radiation emitted by cobalt 60 nuclei in a cobalt single crystal. Cobalt 60 was lined up in a cobalt nickel alloy (40% Ni). The hyperfine field at the cobalt was measured compared to the effective field in metallic cobalt: Heff(Co Ni)/Heff(Co metal) = 0.71 ± 0.12. These results are in good agreement with specific heat measurements made previously. Cobalt 60 has been polarised in a neodymium-cobalt alloy (NdCo 5 ). The field at the cobalt in NdCo 5 has been measured compared to the field in metallic cobalt and taking the non-saturation into account we found 165000 oersteds 5 ) [fr

  6. Development of the object-oriented analysis code for the estimation of material balance in pyrochemical reprocessing process (2). Modification of the code for the analysis of holdup of nuclear materials in the process

    International Nuclear Information System (INIS)

    Okamura, Nobuo; Tanaka, Hiroshi

    2001-04-01

    Pyrochemical reprocessing is thought to be promising process for FBR fuel cycle mainly from the economical viewpoint. However, the material behavior in the process is not clarified enough because of the lack of experimental data. The authors have been developed the object-oriented analysis code for the estimation of material balance in the process, which has the flexible applicability for the change of process flow sheet. The objective of this study is to modify the code so as to analyze the holdup of nuclear materials in the pyrochemical process from the viewpoint of safeguard, because of the possibility of larger amount of the holdup in the process compared with aqueous process. As a result of the modification, the relationship between the production of nuclear materials and its holdup in the process can be evaluated by the code. (author)

  7. Nuclear Energy Response in the EMF27 Study

    International Nuclear Information System (INIS)

    Kim, Son H.; Wada, Kenichi; Kurosawa, Atsushi; Roberts, Matthew

    2014-01-01

    The nuclear energy response for mitigating global climate change across eighteen participating models of the EMF27 study is investigated. Diverse perspectives on the future role of nuclear power in the global energy system are evident in the broad range of nuclear power contributions from participating models of the study. In the Baseline scenario without climate policy, nuclear electricity generation and shares span 0 - 66 EJ/ year and 0 - 25% in 2100 for all models, with a median nuclear electricity generation of 39 EJ/year (1,389 GWe at 90% capacity factor) and median share of 9%. The role of nuclear energy increased under the climate policy scenarios. The median of nuclear energy use across all models doubled in the 450 ppm CO2e scenario with a nuclear electricity generation of 67 EJ/year (2,352 GWe at 90% capacity factor) and share of 17% in 2100. The broad range of nuclear electricity generation (11 - 214 EJ/year) and shares (2 - 38%) in 2100 of the 450 ppm CO2e scenario reflect differences in the technology choice behavior, technology assumptions and competitiveness of low carbon technologies. Greater clarification of nuclear fuel cycle issues and risk factors associated with nuclear energy use are necessary for understanding the nuclear deployment constraints imposed in models and for improving the assessment of the nuclear energy potential in addressing climate change

  8. Display of nuclear medicine imaging studies

    International Nuclear Information System (INIS)

    Singh, B.; Kataria, S.K.; Samuel, A.M.

    2002-08-01

    Nuclear medicine imaging studies involve evaluation of a large amount of image data. Digital signal processing techniques have introduced processing algorithms that increase the information content of the display. Nuclear medicine imaging studies require interactive selection of suitable form of display and pre-display processing. Static imaging study requires pre-display processing to detect focal defects. Point operations (histogram modification) along with zoom and capability to display more than one image in one screen is essential. This album mode of display is also applicable to dynamic, MUGA and SPECT data. Isometric display or 3-D graph of the image data is helpful in some cases e.g. point spread function, flood field data. Cine display is used on a sequence of images e.g. dynamic, MUGA and SPECT imaging studies -to assess the spatial movement of tracer with time. Following methods are used at the investigator's discretion for inspection of the 3-D object. 1) Display of orthogonal projections, 2) Display of album of user selected coronal/ sagital/ transverse orthogonal slices, 3) Display of three orthogonal slices through user selected point, 4) Display of a set of orthogonal slices generated in the user-selected volume, 5) Generation and display of 3-D shaded surface. 6) Generation of volume data and display along with the 3-D shaded surface, 7) Side by side display orthogonal slices of two 3-D objects. Displaying a set of two-dimensional slices of a 3-D reconstructed object through shows all the defects but lacks the 3-D perspective. Display of shaded surface lacks the ability to show the embedded defects. Volume display -combining the 3-D surface and gray level volume data is perhaps the best form of display. This report describes these forms of display along with the theory. (author)

  9. Status and prospects of nuclear arms control study

    International Nuclear Information System (INIS)

    Sun Xiangli; Wang Deli

    1995-01-01

    Some main issues and problems involved in nuclear arms control study, such as nuclear policy, NPT regime, verification technologies for a CTBT and disposal of military nuclear materials are introduced, in which both the current state and prospects of these issues are analyzed

  10. Developing instruments concerning scientific epistemic beliefs and goal orientations in learning science: a validation study

    Science.gov (United States)

    Lin, Tzung-Jin; Tsai, Chin-Chung

    2017-11-01

    The purpose of this study was to develop and validate two survey instruments to evaluate high school students' scientific epistemic beliefs and goal orientations in learning science. The initial relationships between the sampled students' scientific epistemic beliefs and goal orientations in learning science were also investigated. A final valid sample of 600 volunteer Taiwanese high school students participated in this survey by responding to the Scientific Epistemic Beliefs Instrument (SEBI) and the Goal Orientations in Learning Science Instrument (GOLSI). Through both exploratory and confirmatory factor analyses, the SEBI and GOLSI were proven to be valid and reliable for assessing the participants' scientific epistemic beliefs and goal orientations in learning science. The path analysis results indicated that, by and large, the students with more sophisticated epistemic beliefs in various dimensions such as Development of Knowledge, Justification for Knowing, and Purpose of Knowing tended to adopt both Mastery-approach and Mastery-avoidance goals. Some interesting results were also found. For example, the students tended to set a learning goal to outperform others or merely demonstrate competence (Performance-approach) if they had more informed epistemic beliefs in the dimensions of Multiplicity of Knowledge, Uncertainty of Knowledge, and Purpose of Knowing.

  11. A study on international nuclear cooperation and technology self-reliance strategies for nuclear development in other countries

    International Nuclear Information System (INIS)

    Choi, Young Myung; Han, Pil Soon; Park, Yun Sik; Song, Ki Dong; Yang, Mang Ho; Oh, Keun Bae; Jang, Hong Lae; Lee, Dong Jin; Lee, Kang Suk; Kim, Sung Ki; Ko, Han Suk

    1993-12-01

    This study deals with international nuclear cooperation and technology self-reliance for nuclear development in other countries. This study also analyses the international and domestic nuclear environment such as NPT, nuclear export control, gloval environmental issues, and public acceptance. Finally, a suggestion is made for the future direction of strategy for nuclear technology self-reliance in Korea. (Author)

  12. Introducing Knowledge Management in Study Program of Nuclear Engineering

    International Nuclear Information System (INIS)

    Pleslic, S.

    2012-01-01

    Nuclear engineering is the branch of engineering concerning application of the fission as well as the fusion of atomic nuclei, and the application of other sub-atomic physics, based on the principles of nuclear physics. In the sub-field of nuclear fission there are many investigations of interactions and maintaining of systems and components like nuclear reactors and nuclear power plants. The field also includes the study of different applications of ionizing radiation (medicine, agriculture...), nuclear safety, the problems of thermodynamics transport, nuclear materials and nuclear fuels, and other related technologies like radioactive waste management. In the area of nuclear science and engineering a big amount of knowledge has been accumulated over the last decades. Different levels of nuclear knowledge were considered in different ways and they were taught to different parts of population as a general human culture and as a general scientific-technical-technological culture (high schools, nuclear information centres, training centres, universities...). An advanced level of nuclear knowledge has been accumulated by many experienced workers, specialists and experts in all nuclear and nuclear-related fields and applications. In the last 20 years knowledge management has established itself as a discipline of enabling individuals, teams and whole organizations to create, share and apply knowledge collectively and systematically, with goal to better achieve their objectives. Also, knowledge management became key strategic approach for management of intellectual assets and knowledge that can improve safety, efficiency and innovation, and lead to preserve and enhance current knowledge. Knowledge management could be applied in education, training, networking, human resource development and capacity building, sharing, pooling and transferring knowledge form centres of knowledge to centres of growth. Considering the critical importance of nuclear knowledge it is important

  13. Childhood gender-typed behavior and adolescent sexual orientation: A longitudinal population-based study.

    OpenAIRE

    Li, Gu; Kung, Karson TF; Hines, Melissa Marie

    2017-01-01

    Lesbian and gay individuals have been reported to show more interest in other-sex, and/or less interest in same-sex, toys, playmates, and activities in childhood than heterosexual counterparts. Yet, most of the relevant evidence comes from retrospective studies or from prospective studies of clinically-referred, extremely gender nonconforming children. In addition, findings are mixed regarding the relationship between childhood gender-typed behavior and the later sexual orientation spectrum f...

  14. Strategic Orientation Towards Sustainable Innovation: A Case Study in a Brazilian University

    OpenAIRE

    Leodir Löbler, Mauri; Gomes da Silva, Beloni; Pozzobon, Daniela Maria; Maffini Gomes, Clandia

    2012-01-01

    The technological development that results from innovation can lead to considerable environmental impact. Yet, companies and other stakeholders have not done enough to develop strategies for minimizing waste management. The present study contributes to research in this area, by empirically examining the link between the management of technological innovation and sustainability. A case study was carried out to examine the extent to which there is strategic orientation towards both technologica...

  15. Institutional reforms of nuclear emergency preparedness in Japan and its challenges. Case studies on stakeholder involvement in establishing nuclear emergency preparedness in France and its implications for Japan

    International Nuclear Information System (INIS)

    Sugawara, Shin-etsu

    2013-01-01

    Based upon the experiences with the accident of Fukushima Daiichi Nuclear Power Station, Japan is now making a comprehensive review of nuclear emergency preparedness. The Nuclear Regulation Authority of Japan has changed drastically its basic concept of nuclear emergency arrangements from their dependence on the prediction methods to advance planning-oriented arrangements. In order to implement such changes in an effective enough manner, this report examines how to improve stakeholder involvement focusing on the French cases, where the Local Information Commissions (CLI) plays a critical role, and thereby derives concrete lessons for Japan. Case studies on CLI's involvement in French nuclear emergency preparedness revealed the following implications for Japan; 1. Improving continuously the disaster prevention plans of local governments and of nuclear utilities thorough recursive cycles of disaster-preparedness drill and its evaluation for the benefits of local inhabitants, 2. Setting appropriate ranges wherein local stakeholders involve constantly in establishing nuclear emergency preparedness without alienating completely other stakeholders, 3. Utilizing the prediction systems not as a means to support decision-making in emergency situations but as a tool for facilitating stakeholder involvement in the phase of advance planning, and 4. Integrating nuclear emergency preparedness into other disaster preventions for reducing complex and unrecognized risks. (author)

  16. EFFECT OF MARKET ORIENTATION ON SMALL BUSINESS PERORMANCE IN SMALL TOWN IN MALAYSIA: AN EMPRICAL STUDY ON MALAYSIAN SMALL FIRMS

    Directory of Open Access Journals (Sweden)

    Muhammad Masroor ALAM

    2010-01-01

    Full Text Available Most research on market orientation, and performance was related to big firms. In this study, based on the theoretical framework, a model was developed to investigate the effect of market orientation on business performance in small firms. To test the relationships among the variables, data from 53 small firms in the small town of Chunglun at Sintok, Kedah was used. The findings show that the three components of market orientation are related positive to business performance of small firms. The further analysis also confirmed that customer orientation and competitor orientation are strong predictors of small firm performance. The findings of this study confirm that market orientation behavior also applies to small firms.

  17. Novel studies of molecular orientation in synthetic polymeric membranes for gas separation

    International Nuclear Information System (INIS)

    Ismail, Ahmad Fauzi

    1998-01-01

    The main objective of this investigation was to produce a super-selective asymmetric membrane for gas separation. To achieve this, molecular orientation induced by rheological conditions during membrane fabrication was investigated and related to the gas separation performance of flat sheet and hollow fiber membranes. Infrared dichroism, a spectroscopic technique, was developed in the first phase of the research to directly measure molecular orientation in flat sheet membranes. The degree of molecular orientation was found to increase with increasing shear during fabrication which enhanced both pressure-normalised flux and selectivity of the coated membranes. The rheology of polymer solutions and the mechanism of molecular orientation have been treated in detail for membrane production. This is a novel approach since previous fundamental work has focused on the phase inversion process. The current study showed that rheological conditions during membrane fabrication have the utmost importance in enhancing membrane selectivity. The effects of molecular orientation at greater shear, as experienced by hollow fiber membranes during extrusion through the spinneret channel, were investigated in the second phase of this research. In order to produce a good quality fiber, a unique tube-in-orifice spinneret and a modified hollow fiber spinning rig were designed and fabricated. Thus the combined effects of reduced water activity in the bore coagulant during hollow fiber spinning and rheologically induced molecular orientation were investigated. The selectivity of the coated high shear hollow fiber membranes was heightened and even surpassed the recognised intrinsic selectivity of the polymer. Pressure-normalised flux also increased with increasing shear rate. In the third phase of this research phase inversion conditions were further optimised to give a superior skin layer and thus provide an even better platform for the advantageous effects of molecular orientation. These

  18. Extended RPA study of nuclear collective phenomena

    International Nuclear Information System (INIS)

    Drozdz, S.

    1987-01-01

    A fully microscopic study of nuclear collective phenomena is presented within the framework of an extended RPA which includes 1p-1h and 2p-2h excitations in a consistent way. This theory allows us to obtain a very realistic description of various excitation spectra. As a result, a strong evidence of correlation effects beyond mean-field theory emerges. The effective interaction used is a G-matrix derived from the meson-exchange potential. The extended theory introduces also additional correlations which screen the long-large part of the effective interaction. This effect significantly enhances the stability of the ground state against density fluctuations. In this connection a possible importance of relativistic effects is also discussed. 99 refs., 19 figs., 5 tabs. (author)

  19. Nuclear piping system damping data studies

    International Nuclear Information System (INIS)

    Ware, A.G.; Arendts, J.G.

    1985-01-01

    A programm has been conducted at the Idaho National Engineering Laboratory to study structural damping data for nuclear piping systems and to evaluate if changes in allowable damping values for structural seismic analyses are justified. The existing pipe damping data base was examined, from which a conclusion was made that there were several sets of data to support higher allowable values. The parameters which most influence pipe damping were identified and an analytical investigation demonstrated that increased damping would reduce the required number of seismic supports. A series of tests on several laboratory piping systems was used to determine the effect of various parameters such as types of supports, amplitude of vibration, frequency, insulation, and pressure on damping. A multiple regression analysis was used to statistically assess the influence of the various parameters on damping, and an international pipe damping data bank has been formed. (orig.)

  20. Feasibility Study on Nuclear Propulsion Ship according to Economic Evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Gil, Youngmi; Yoo, Seongjin; Oh, June; Byun, Yoonchul; Woo, Ilguk [Daewoo Shipbuilding and Marine Engineering Co., Ltd, Seoul (Korea, Republic of); Kim, Jiho; Choi, Suhn [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2013-05-15

    The use of nuclear ships has been extending to the icebreaker, the deep-water exploration ship, and the floating nuclear power plant. Prior to developing the new ship, the relevant regulations need to be considered. In this study, we reviewed the nuclear ship-related regulations. In addition, economic value is one of the most important factors which should be considered in the pre-design phase. To evaluate the economics of the nuclear ship, we calculated Capital Expenditure (abbreviated as CAPEX) and Operation Expenditure (abbreviated as OPEX) for various types of ships. We reviewed the nuclear ship-related regulations and evaluated the economics of the nuclear ship compared to the diesel ship. The calculation result shows that economic feasibility of the nuclear ship depends on the oil price as well as the cost of the nuclear reactor.

  1. Comparative Study of Two Daylighting Analysis Methods with Regard to Window Orientation and Interior Wall Reflectance

    Directory of Open Access Journals (Sweden)

    Yeo Beom Yoon

    2014-09-01

    Full Text Available The accuracy and speed of the daylighting analysis developed for use in EnergyPlus is better than its predecessors. In EnergyPlus, the detailed method uses the Split-flux algorithm whereas the DElight method uses the Radiosity algorithm. Many existing studies have addressed the two methods, either individually or compared with other daylight analysis methods like Ray tracing but still there is lack of detailed comparative study of these two methods. Our previous studies show that the Split-flux method overestimates the illuminance, especially for the areas away from the window. The Radiosity method has the advantage of accurately predicting this illuminance because of how it deals with the diffuse light. For this study, the EnergyPlus model, which has been calibrated using data measured in a real building in previous studies, has also been used. The calibrated model has a south oriented window only. This model is then used to analyze the interior illuminance inside the room for north, west and east orientation of the window by rotating the model and by changing the wall reflectance of the model with south oriented window. Direct and diffuse component of the illuminance as well as the algorithms have been compared for a detailed analysis.

  2. A study on enhancing policy transparency in the nuclear field

    Energy Technology Data Exchange (ETDEWEB)

    Cheon, S. W. [Korea Institute for National Unification, Seoul (Korea)

    2000-11-01

    Enhancing transparency in the nuclear field is a pending issue for the South Korea's nuclear community. International suspicions and mistrust of ROK's nuclear activities have been obstacles to the developments of South Korea's nuclear industry. South Korea's efforts have not been sufficient enough to ensure international community that its nuclear program will be used solely for peaceful purposes. Therefore, the purpose of this study is to conduct a positive and creative research on the issue of transparency and provide policy options that are conducive to developing of South Korea's nuclear industry. Based on an in-depth study on transparency of national policies, this study presents a package of detail policy measures that can contribute to enhancing transparency in the nuclear filed. 75 refs., 2 tabs. (Author)

  3. Studies and research concerning BNFP. Nuclear spent fuel transportation studies

    International Nuclear Information System (INIS)

    Anderson, R.T.; Maier, J.B.

    1979-11-01

    Currently, there are a number of institutional problems associated with the shipment of spent fuel assemblies from commercial nuclear power plants: new and conflicting regulations, embargoing of certain routes, imposition of transport safeguards, physical security in-transit, and a lack of definition of when and where the fuel will be moved. This report presents a summary of these types and kinds of problems. It represents the results of evaluations performed relative to fuel receipt at the Barnwell Nuclear Fuel Plant. Case studies were made which address existing reactor sites with near-term spent fuel transportation needs. Shipment by either highway, rail, water, or intermodal water-rail was considered. The report identifies the impact of new regulations and uncertainty caused by indeterminate regulatory policy and lack of action on spent fuel acceptance and storage. This stagnant situation has made it impossible for industry to determine realistic transportation scenarios for business planning and financial risk analysis. A current lack of private investment in nuclear transportation equipment is expected to further prolong the problems associated with nuclear spent fuel and waste disposition. These problems are expected to intensify in the 1980's and in certain cases will make continuing reactor plant operation difficult or impossible

  4. A study on the effect of knowledge management on customer orientation in governmental organization

    Directory of Open Access Journals (Sweden)

    Alireza Bakhshizadeh

    2012-10-01

    Full Text Available Knowledge management (KM plays an important role on increasing organizational performance especially governmental agencies where there are different skills and knowledge within the organization. In this study, we present a study to investigate the effect of KM on having more customer oriented organizations. We use a standard questionnaire among 146 randomly selected employees out of 170 people who work for four governmental organizations in city of Chahbahar, Iran. The collected information is analyzed using structural equation modeling and by validating the results using Cronbach alphas of more than the minimum desired level of 0.70, we determine the positive relationships between KM and three other variables including customer absorption, customer retention and customer relationship management. The results of this survey reveal that an increase of one unit in KM yields almost the same increase in three mentioned variables accordingly. In addition, an increase of one percent in KM will increase customer orientation by almost one percent.

  5. CFD Study of Drag and Lift of Sepak Takraw Ball at Different Face Orientations

    Directory of Open Access Journals (Sweden)

    Abdul Syakir Abdul Mubin

    2015-01-01

    Full Text Available There have been a significant number of researches on computational fluid dynamic (CFD analysis of balls used in sports such as golf balls, tennis balls, and soccer balls. Sepak takraw is a high speed court game predominantly played in Southeast Asia using mainly the legs and head. The sepak takraw ball is unique because it is not enclosed and made of woven plastic. Hence a study of its aerodynamicswould give insight into its behaviour under different conditions of play. In this study the dynamics of the fluid around a static sepak takraw ball was investigated at different wind speeds for three different orientations using CFD. It was found that although the drag did not differ very much, increasing the wind velocity causes an increase in drag. The lift coefficientvaries as the velocity increases and does not show a regular pattern. The drag and lift coefficients are influenced by the orientation of the sepak takraw ball.

  6. From Procedural to Object-Oriented Programming (OOP- Performance in OOP: An empirical study

    Directory of Open Access Journals (Sweden)

    Irene Govender

    2011-02-01

    Full Text Available This exploratory study of introductory pre- and in-service teachers’ performance in object-oriented programming (OOP assessments reveals important issues with regard to learning and teaching OOP, using java. The study is set against the backdrop of the country’s transition of its national IT curriculum from a procedural to an object-oriented programming language. The effect of prior programming experience and performances in different types of questions are examined. A combination of quantitative and qualitative methods is used to analyse the data. The effect of prior programming experience of a procedural kind and the type of assessments given is shown to have a marked influence on the performance in programming assessments and teaching of OOP. Many introductory OOP courses are in effect taught procedurally as courses in the small. Therefore educating teachers how to teach programming is a significant educational challenge. Some implications for teaching are therefore suggested

  7. Study of a Federal Nuclear Operations Corps

    International Nuclear Information System (INIS)

    1981-12-01

    The staffing requirements of the nuclear electric utility industry will create very large demands in the next 3 years for nuclear trained personnel in operation and maintenance. The commercial nuclear industry recognizes these needs, the importance of having qualified trained personnel, and is taking appropriate action to satisfy these requirements. The education and training capabilities both inside and outside of the utility industry have the capacity to meet these demands if they are properly managed. In particular, the Institute of Nuclear Power Operations Human Resource Management System provides a framework for an organized industry-wide program. The Nuclear Regulatory Commission's Office of Inspection and Enforcement is in effect a Federal Corps focused on nuclear operations. Its Reactor Training Center trains the professionals required to inspect nuclear operations and enforce regulations. Therefore, the Department of Energy (DOE) believes that the objectives of a Federal Nuclear Operations Corps can be met by existing private and Federal efforts and that there is no need to establish another corps or training academy. This is consistent with the Administration's policy of minimizing the Federal role in areas where the private sector is capable

  8. Reliability study of nuclear power stations

    International Nuclear Information System (INIS)

    Nemec, J.; Sedlacek, J.

    1975-01-01

    The paper considers the physical and mathematical bases underlying nuclear power station reliability from the standpoints of material fatigue, thermal yield and ageing. The risk of failure of nuclear power station components is determined by means of the Markov stochastic process

  9. [Electromagnetic studies of nuclear structure and reactions

    International Nuclear Information System (INIS)

    1992-01-01

    The experimental goals are focused on developing an understanding of strong interactions and the structure of hadronic systems by determination of the electromagnetic response; these goals will be accomplished through coincidence detection of final states. Nuclear modeling objectives are to organize and interpret the data through a consistent description of a broad spectrum of reaction observables; calculations are performed in a nonrelativistic diagrammatic framework as well as a relativistic QHD approach. Work is described according to the following arrangement: direct knockout reactions (completion of 16 O(e,e'p), 12 C(e,e'pp) progress, large acceptance detector physics simulations), giant resonance studies (intermediate-energy experiments with solid-state detectors, the third response function in 12 C(e,e'p 0 ) and 16 O(e,e'p 0 ), comparison of the 12 C(e, e'p 0 ) and 16 O(e,e'p 3 ) reactions, quadrupole strength in the 16 O(e,e'α 0 ) reaction, quadrupole strength in the 12 C(e,e'α) reaction, analysis of the 12 C(e,e'p 1 ) and 16 O(e,e'p 3 ) angular distributions, analysis of the 40 Ca(e,e'x) reaction at low q, analysis of the higher-q 12 C(e,e'x) data from Bates), models of nuclear structure (experimental work, Hartree-Fock calculations, phonon excitations in spherical nuclei, shell model calculations, variational methods for relativistic fields), and instrumentation development efforts (developments at CEBAF, CLAS contracts, BLAST developments)

  10. A Longitudinal Study of Children's Theory of Mind, Self-Concept, and Gender-Role Orientation

    Science.gov (United States)

    Bosacki, Sandra Leanne

    2014-01-01

    This study investigated the longitudinal relations between theory of mind (ToM) understanding, self-perceptions, and perceptions of gender-role orientation in 28 school-aged children, (16 girls, 12 boys, aged 8-12 years). Theory of mind and perceptions of self were assessed at Time 1 (T1, M = 8 y 5 m) and two years later at Time 2 (T2, M = 10 y 4…

  11. Customer orientation on online newspaper business models with paid content strategies: An empirical study

    OpenAIRE

    Goyanes, Manuel; Sylvie, George

    2014-01-01

    This study examines the transformations that trigger business models with paid content strategies on news organizations under the theoretical framework of market orientation. The results show three main factors: those related to competence, to the organization culture and to understanding of needs and wants of the audience. The findings also suggest that online newspapers business models with paid content strategies are more like experiments or forays rather than definitive methods that monet...

  12. Fathers' Orientation to Their Children's Autism Diagnosis: A Grounded Theory Study

    Science.gov (United States)

    Hannon, Michael D.; Hannon, LaChan V.

    2017-01-01

    Sixteen fathers of individuals with autism were interviewed to develop a grounded theory explaining how they learned about their children's autism diagnosis. Results suggest the orientation process entails at least two phases: orienting oneself and orienting others. The orienting oneself phase entailed fathers having suspicion of developmental…

  13. A Study on Introduction of Nuclear Power Plants in India and the Nuclear Non- Proliferation Conditions

    International Nuclear Information System (INIS)

    Yang, Seung Hyo; Lim, Dong Hyuk

    2011-01-01

    Nuclear Suppliers Group (NSG) which was formed to build nuclear export control has been accepting the nuclear cooperation for the member nation of the international nuclear non-proliferation regime. Korea exported nuclear power plants to United Arab Emirates in 2009 and research and training reactor to Jordan in 2010 based on the forcible non-proliferation regime as a member nation of NSG, so it is strengthening its position in the atomic energy industry. In addition, Korea concluded an agreement with India which is planning the construction of 25.based or more nuclear power plants for the next 20 years in last July, 25, so it will enter the atomic energy market in India. But India has been accepted the exceptionally civilian nuclear cooperation as a de facto Nuclear Weapon State (NWS) and non-member state of NPT, so concerns about nuclear proliferation has been raised. This study aims to introduce the allowance of exceptions background in India, to analyze its effect on the non-proliferation regime and to find nuclear non-proliferation conditions

  14. Work regulatory on he/she practices it he/she gives nuclear medicine in the oriental territory

    International Nuclear Information System (INIS)

    Mustelier, H.A.; Fornet, R.O.; Perez Gonzalez, F.; Perez Velazquez, R.S.; Miller, C.R.A.; De la Torre, R.A.

    1998-01-01

    The work refers the experience the Radiological Security inspectors group to the Delegation of Science Technology and Half Atmosphere Ministry (CITMA) in the Holguin province in regarding the radiological control to the nuclear medicine practice

  15. Fathers' Orientation to their Children's Autism Diagnosis: A Grounded Theory Study.

    Science.gov (United States)

    Hannon, Michael D; Hannon, LaChan V

    2017-07-01

    Sixteen fathers of individuals with autism were interviewed to develop a grounded theory explaining how they learned about their children's autism diagnosis. Results suggest the orientation process entails at least two phases: orienting oneself and orienting others. The orienting oneself phase entailed fathers having suspicion of developmental differences, engaging in research and education activities, having their children formally evaluated; inquiring about their children's prognosis, and having curiosities about autism's etiology. The orienting others phase entailed orientating family members and orienting members of their broader communities. Recommendations for responsive service provision, support for fathers, and future research are offered.

  16. Market Orientation and Business Performance: a Study of Interrelationships and Effects in a Small sized Hotels within Lagos State Metropolis

    Directory of Open Access Journals (Sweden)

    P.K.A. Ladipo

    2016-12-01

    Full Text Available The relationship between market orientation and business performance has been a subject of debate in marketing literature. To date, there is no consensus opinion and empirical study in the context of small sized-hotels in Nigeria is scanty. This study examines the relationship between market orientation and business performance. Cross-sectional survey research design was adopted. Questionnaire was used to obtained data from 300 employees of the selected hotels within Lagos metropolis. Data collected were analyzed using correlation and regression analysis. The results suggest that only customer orientation is significantly contributing to the performance of the small sized hotel operators. Specifically, both competitor orientation and inter-functional coordination, though practiced by the hotels are not significantly linked to its performance. Furthermore, the study discovered that market orientation practices significantly influence business performance of the selected hotels. Based on the findings, the study concludes that hotel operators need market orientation practices to enhance their performance. Hence, market orientation will continue to be a vital strategy not only in improving firm’s understanding of customers’ and competitors, but to enhance synergy across the organization. From the preceding conclusion, the study recommends that hotel operators should commit substantial resources and effort in cultivating a customer oriented culture, and transmit it across the organization to create strategic alignment. Furthermore, the competitive environment should be closely monitored to identify profitable business opportunity and threats that could affect their growth and sustainability.

  17. The role of metacognitive skills in solving object-oriented programming problems: a case study

    Directory of Open Access Journals (Sweden)

    Marietjie Havenga

    2015-07-01

    Full Text Available This article reports on the role of metacognitive skills when solving object-oriented programming problems as part of a case study. The research was constructivist-based within an interpretivist approach to explore how four students constructed their own thinking when solving programming problems. A qualitative methodology was employed. Both concept-driven coding and data-driven coding were applied. Two main issues emerged from the findings. Participating students had fragmented knowledge of the object-oriented approach and shortcomings regarding the implementation thereof, and they experienced problems with metacognitive control during all the steps of program development. Based on the findings the use of metacognitive critical control points (MCCPs is proposed to be used as a mechanism to facilitate students in their programming efforts and to prevent loss of control during program development.

  18. Study of secondary recrystallization in grain-oriented steel treated under dynamical heat treatment conditions

    Directory of Open Access Journals (Sweden)

    V. Stoyka

    2009-04-01

    Full Text Available The present study was made to investigate secondary recrystallization in grain-oriented steels annealed at short time temperature exposures with application of dynamical heating. The investigated GO steels for experiments were taken from one industrial line after final cold rolling reduction and subsequent box annealing. It was shown that application of short time heat treatment conditions could lead to complete abnormal grain growth in the investigated GO steel. The texture and microstructure obtained in the laboratory treated material is similar to that observed in the same GO steel taken after industrial final box-annealing. However, some “parasitic” grains were observed in the secondary recrystallized matrix of the laboratory treated GO steel. These “parasitic” grains possess the unwanted from magnetic properties point of view {111} orientation components.

  19. Transit-Oriented Development and Ports: National Analysis across the United States and a Case Study of New Orleans

    Science.gov (United States)

    2017-11-01

    The aim of this study is to examine the extent that freight and passenger transportation planning overlap within the context of transit-oriented developments (TODs) near ports. This study also includes a case study of New Orleans. Research questions ...

  20. Application of electrostatic accelerators for nuclear physics studies

    International Nuclear Information System (INIS)

    Kuz'minov, B.D.; Romanov, V.A.; Usachev, L.N.

    1983-01-01

    The data are reviewed on dynamics of the development of single- and two-stage electrostatic accelerators (ESA) used as a tool or nuclear physics studies in the range of low and medium energies. The ESA wide possibilities are shown on examples of the most specific studies in the field of nuclear physics, work on measurement of nuclear constants to safisfy the nuclear power needs and applied studies on nuclear microanalysis. It is concluded that the contribution of studies performed using ESA to the development of nowadays concepts on nuclear structure and nuclear reaction kinetics is immeasurably higher than of any other nuclear-physics tool. ESA turned out to be also exceptionally useful for solving applied problems and investigations in different fields of knowledge. Carrying over the technique of investigations using ESA and nuclear physics concepts to atomic and molecular problems has found its application in optical spectroscopy in Lamb shift investigations in strongly ionized heavy ions, in various experiments on atom-atom and atom-molecular scattering, in stUdies of collisions and charge exchange. ESA contributed to the progress in such scientific fields as astraphysics, nuclear physics, solid-state physics, material science and biophysics

  1. ADHD symptoms, academic achievement, self-perception of academic competence and future orientation: a longitudinal study.

    Science.gov (United States)

    Scholtens, Sara; Rydell, Ann-Margret; Yang-Wallentin, Fan

    2013-06-01

    In the investigation of the effect of attention deficit hyperactivity disorder (ADHD) symptoms on school careers there is a need to study the role of adolescent and childhood ADHD symptoms and academic achievement, and to incorporate measures that include the individual's perspective. Our aim was to gain an overview of the long-term development of school careers in relation to ADHD symptoms. We studied associations between ADHD symptoms and academic achievement at different time-points and future orientation at the end of high school, and assessed the role of self-perceptions of academic competence in these associations. Participants were 192 children (47% girls) with a range of ADHD symptoms taken from a community sample. Collecting data at three time points, in 6th, 11th and 12th grade we tested a structural equation model. Results showed that ADHD symptoms in 6th grade negatively affected academic achievement concurrently and longitudinally. ADHD symptoms in 11th grade negatively affected concurrent academic achievement and academic self-perception and future orientation in 12th grade. Academic achievement had a positive influence on academic self-perception and future orientation. Given the other factors, self-perception of academic competence did not contribute to outcomes. We concluded that early ADHD symptoms may cast long shadows on young people's academic progress. This happens mainly by way of stability in symptoms and relations to early low academic achievement. © 2013 The Authors. Scandinavian Journal of Psychology © 2013 The Scandinavian Psychological Associations.

  2. Associations between the peer support relationship, service satisfaction and recovery-oriented outcomes: a correlational study.

    Science.gov (United States)

    Thomas, Elizabeth C; Salzer, Mark S

    2017-12-18

    The working alliance between non-peer providers and mental health consumers is associated with positive outcomes. It is hypothesized that this factor, in addition to other active support elements, is also positively related to peer support service outcomes. This study evaluates correlates of the peer-to-peer relationship and its unique association with service satisfaction and recovery-oriented outcomes. Participants were 46 adults with serious mental illnesses taking part in a peer-brokered self-directed care intervention. Pearson correlation analyses examined associations among peer relationship factors, services-related variables and recovery-oriented outcomes (i.e. empowerment, recovery and quality of life). Hierarchical multiple regression analyses evaluated associations between relationship factors and outcomes over time, controlling for other possible intervention effects. The peer relationship was not related to number of contacts. There were robust associations between the peer relationship and service satisfaction and some recovery-oriented outcomes at 24-months, but not at 12-months. These associations were not explained by other possible intervention effects. This study contributes to a better understanding of the positive, unique association between the peer-to-peer relationship and outcomes, similar to what is found in non-peer-delivered interventions. Implications for program administrators and policymakers seeking to integrate peer specialists into mental health service systems are discussed.

  3. Nuclear and radiation studies and environmental concerns

    International Nuclear Information System (INIS)

    McEwan, A.C.

    1998-01-01

    Over the three days 22-24 September 1998 a Science Forum was convened under the general heading of 'Nuclear technology in relation to water resources and the aquatic environment' at the International Atomic Energy Agency, Vienna. Some points of interest, or points of more particular relevance to radiation protection, are noted from the five sessions of the Forum: Session 1: water resources; Session 2: sea transport of radioactive and nuclear materials; Session 3: monitoring radioactivity in the aquatic environment; Session 4: nuclear technology in relation to waste resources and the aquatic environment, Session 5: impact assessment. (author)

  4. Nuclear Physics studies at ELI-NP

    International Nuclear Information System (INIS)

    Stevenson, P.D.; Goddard, P.M.; Rios, A.

    2015-01-01

    The mission of the Extreme Light Infrastructure – Nuclear Physics (ELI-NP) facility is to use extreme electromagnetic fields for nuclear physics research. At ELI-NP, high-power lasers together with a very brilliant γ-ray beam are the main research tools. Their targeted operational parameters are described. The emerging experimental program of the facility in the field of nuclear physics is reported and the main directions of the research envisioned are presented. The experimental instrumentation, which will operate at ELI-NP for the realization of the research program, is discussed. The expected impact of ELI-NP on the future advance of the field is summarized

  5. Mental health orientation for self-help group members: A feasibility study

    Directory of Open Access Journals (Sweden)

    Basavaraj Shrinivasa

    2017-01-01

    Full Text Available Background: Treatment gap for mental health care in low- and middle-income (LAMI countries is very large, and building workforce using the locally available resources is very much essential in reducing this gap. The current study is a preliminary work toward this direction. Materials and Methods: A single group pre- and post-design was considered for assessing the feasibility of Mental Health Orientation (MHO Program for Self-Help Group members. Assessment of participants' MHO using Orientation Towards Mental Illness (OMI scale was undertaken at three levels: baseline assessment before the intervention, after completing 2 days orientation program, and 6 weeks later. Results: Analysis of data resulted in statistically significant mean scores in the domains of areas of causation (F[1.41, 40.7] = 21.7, P< 0.000, ηp2 = 0.428, perception of abnormality (F[1.27, 36.8] = 15.8, P< 0.000, ηp2 = 0.353, treatment (F[1.42, 41.3] = 34.8, P< 0.000, ηp2 = 0.546, and after effect (F[1.36,39.4] = 26.7, P< 0.000, ηp2 = 0.480. Although the overall mean scores of all the domains of OMI were found to be statistically significantly different, there was no significant difference in the mean scores between post and follow-up assessments on areas of causation (μd = 1.27, P = 0.440 and treatment (μd = 1.00, P = 0.156. Conclusion: Overall, the findings of our study demonstrate that brief MHO program can exert a beneficial effect on bringing about significant change in the orientation of the participants toward mental illness but need to be refreshed over time to make the impact of the program stay longer.

  6. Progress report on nuclear spectroscopic studies

    International Nuclear Information System (INIS)

    Bingham, C.R.; Riedinger, L.L.; Sorensen, S.P.

    1996-01-01

    The experimental program in nuclear physics at the University of Tennessee, Knoxville, is led by Professors Carrol Bingham, Lee Riedinger, and Soren Sorenseni who respectively lead the studies of the exotic decay modes of nuclei far from stability, the program of high-spin research, and our effort in relativistic heavy-ion physics. Over the years, this broad program of research has been successful partially because of the shared University resources applied to this group effort. The proximity of the Oak Ridge National Laboratory has allowed us to build extremely strong programs of joint research, and in addition to play an important leadership role in the Joint Institute for Heavy Ion Research (JIHIR). Our experimental program is also very closely linked with those at other national laboratories: Argonne (collaborations involving the Fragment Mass Analyzer (FMA) and γ-ray arrays), Brookhaven (the RHIC and Phenix projects), and Berkeley (GAMMASPHERE). We have worked closely with a variety of university groups in the last three years, especially those in the UNISOR and now UNIRIB collaborations. And, in all aspects of our program, we have maintained close collaborations with theorists, both to inspire the most exciting experiments to perform and to extract the pertinent physics from the results. The specific areas discussed in this report are: properties of high-spin states; study of low-energy levels of nuclei far from stability; and high energy heavy-ion physics

  7. Studies of fluctuation processes in nuclear collisions

    International Nuclear Information System (INIS)

    Ayik, S.

    1991-02-01

    This report summarizes the progress on grant No. DE-FG05-89ER40530 during the period April 15, 1990 to February 15, 1991. Our studies of heavy-ion collisions in the framework of ''a stochastic one-body transport model'' has progress in several directions. We developed a method for obtaining approximate numerical solutions of the transport-equation in semi-classical limit, i.e., Boltzmann-Langevin equation, and tested the method in realistic cases of heavy-ion collisions at energies below 100 MeV per nucleon. Some results of the numerical simulations for a head-on collision of 12 C + 12 C system is included in this report. Work has also continued on studying the stochastic one-body transport model in a quantal representation, which provides a microscopic basis for a consistent description of dissipation and fluctuation properties of large amplitude collective nuclear motion. The previous derivation of the stochastic one-body transport model was presented within the density matrix formalisam. We generalized this treatment and proposed an alternative derivation of the model by employing the Green's function approach within the real-time path formalism of Keldish. One manuscript has been submitted to Nucl. Phys. A for publication. Two other manuscripts are in preparation for publication. Several seminars and contributed talks were presented at various meeting

  8. Nuclear analytical techniques for nanotoxicology studies

    International Nuclear Information System (INIS)

    Zhang, Z.Y.; Zhao, Y.L.; Chai, Z.F.

    2011-01-01

    With the rapid development of nanotechnology and its applications, a wide variety of nanomaterials are now used in commodities, pharmaceutics, cosmetics, biomedical products, and industries. The potential interactions of nanomaterials with living systems and the environment have attracted increasing attention from the public, as well as from manufacturers of nanomaterial-based products, academic researchers and policymakers. It is important to consider the environmental, health and safety aspects at an early stage of nanomaterial development and application in order to more effectively identify and manage potential human and environmental health impacts from nanomaterial exposure. This will require research in a range of areas, including detection and characterization, environmental fate and transport, ecotoxicology and toxicology. Nuclear analytical techniques (NATs) can play an important role in such studies due to their intrinsic merits such as high sensitivity, good accuracy, high space resolution, ability to distinguish the endogenous or exogenous sources of materials, and ability of in situ and in vivo analysis. In this paper, the applications of NATs in nanotoxicological and nano-ecotoxicological studies are outlined, and some recent results obtained in our laboratory are reported. (orig.)

  9. Hegemonic Masculinity in Sport Education: Case Studies of Pre-Service Physical Education Teachers with Teaching Orientations

    Science.gov (United States)

    Chen, YuChun; Curtner-Smith, Matthew D.

    2015-01-01

    Previous research had indicated that pre-service teachers (PTs) with coaching orientations reinforced sexism and masculine bias while employing the sport education (SE) model. The purpose of the current study was to examine whether or not and the degree to which SE delivered by PTs with teaching orientations served to combat or reinforce sexism…

  10. Regional nuclear fuel cycle centers study project

    International Nuclear Information System (INIS)

    Bennett, L.; Catlin, R.G.; Meckoni, V.

    1977-01-01

    The concept of regional fuel cycle centers (RFCC) has attracted wide interest. The concept was endorsed by many countries in discussions at the General Conference of the International Atomic Energy Agency and at the General Assembly of the United Nations. Accordingly, in 1975, the IAEA initiated a detailed study of the RFCC concept. The Agency study has concentrated on what is referred to as the ''back-end'' of the fuel cycle because that is the portion which is currently problematic. The study covers transport, storage, processing and recycle activities starting from the time the spent fuel leaves the reactor storage pools and through all steps until the recycled fuel is in finished fuel elements and shipped to the reactor. A detailed evaluation of the specific features of large regional fuel cycle centers established on a multinational basis vis-a-vis smaller dispersed fuel cycle facilities set up on a national basis has been carried out. The methodology for assessment of alternative strategies for fuel storage, reprocessing, and recycling of plutonium has been developed, characteristic data on material flows and cost factors have been generated, and an analytic system has been developed to carry out such evaluations including appropriate sensitivity analysis. Studies in related areas on institutional and legal, organizational, environmental, materials control and other essential aspects have also been made. The material developed during the course of this Study would enable any group of interested Member States to examine and work out alternative strategies pertinent to their present and projected nuclear fuel cycle needs, as well as evolve institutional, legal and other appropriate frameworks or agreements for the establishment of fuel cycle centers on a multinational cooperative basis

  11. A comparative study of European nuclear energy programs

    Energy Technology Data Exchange (ETDEWEB)

    Presas i Puig, Albert [ed.

    2011-07-01

    The report includes the following contributions: Comparative study of European Nuclear Energy Programs. From international cooperation to the failure of a national program: the Austrian case. The ''go-and-stop'' of the Italian civil nuclear programs, among improvisations, ambitions and conspiracy. Nuclear energy in Spain - a research agenda for economic historians. The Portuguese nuclear program: a peripheral experience under dictatorship (1945-1973). The nuclear energy programs in Switzerland. The rise and decline of an independent nuclear power industry in Sweden, 1945-1970. The German fast breeder program, a historical review. Fast reactors as future visions - the case of Sweden. Transnational flows of nuclear knowledge between the U.S. and the U.K. and continental Europe in the 1950/60s. The Carter administration and its non-proliferation policies: the road to INFCE.

  12. Possibilities of the Integration of the Method of the Ecologically Oriented Independent Scientific Research in the Study Process

    Science.gov (United States)

    Grizans, Jurijs; Vanags, Janis

    2010-01-01

    The aim of this paper is to analyse possibilities of the integration of the method of the ecologically oriented independent scientific research in the study process. In order to achieve the set aim, the following scientific research methods were used: analysis of the conceptual guidelines for the development of environmentally oriented entrepreneurship, interpretation of the experts' evaluation of the ecologically oriented management, analysis of the results of the students' ecologically oriented independent scientific research, as well as monographic and logically constructive methods. The results of the study give an opportunity to make conclusions and to develop conceptual recommendations on how to introduce future economics and business professionals with the theoretical and practical aspects of ecologically oriented management during the study process.

  13. A study on optimization of the nuclear safety system

    International Nuclear Information System (INIS)

    Lee, Sang Hoon; Koh, Byung Joon; Kim, Jin Soo; Kim, Byoung Do; Cho, Seong Won; Kwon, Seog Kwon; Choi, Kwang Sik

    1986-12-01

    The number of nuclear facilities (nuclear power plants, research reactors, nuclear fuel facilities) under construction or in operation in Korea continues to increase and this has brought about increased importance and concerns toward nuclear safety in Korea. Also, domestic nuclear related organizations are increasingly carrying out the design/construction of nuclear power plants and the development /supply of nuclear fuels. In order to flexibly respond to these changes and to suggest direction to take, it is necessary to re-examine the current nuclear safety regulation system. This study is carried out in two stages and this report describes the results of the analysis and the assessment of the nuclear licencing system of such foreign countries as sweden and German, as the first of the two. In this regard, this study includes the analysis on the backgrounds on the choice of nuclear licensing system, the analysis on the licensing procedures, the analysis on the safety inspection system and the enforcement laws, the analysis on the structure and function of the regulatory, business and research organizations as well as the analysis on the relationship between the safety research and the regulatory duties. In this study, the German safety inspection system and the enforcement procedures and the Swedish nuclear licensing system are analyzed in detail. By comparing and assessing the finding with the current Korea Nuclear Licensing System, this study points out some reform measures of the Korean system that needs to improved. With the changing situations in mind, this study aims to develop the nuclear safety regulation system optimized for Korean situation by re-examining the current regulation system. (Author)

  14. Nuclear systems of the future - generation 4. Proposals of strategic orientations for the nuclear systems of the future; Les systemes nucleaires du futur - generation 4. Propositions d'orientations strategiques pour les systemes nucleaires du futur

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    Several points, specific to France, must be taken into consideration for the long term strategic choice of future nuclear systems, in particular: taking the best profit of the progress potentialities of water reactors, optimizing the opportunities offered by the renewal of power plants in operation, integrating the consequences and the implementation of a strategy of optimized management of radioactive wastes, and looking for improvements that would make nuclear energy an active contributor to sustainable development. The prospective researches carried out by the CEA and its industrial partners have led to propose a R and D strategy with 3 complementary goals: search for innovations for water reactors, development of fast neutron reactors with closed fuel cycle (sodium fast reactor (SFR), gas fast reactor (GFR)), and development of key-technologies for nuclear hydrogen production (very high temperature reactor (VHTR)). The R and D effort concerns also the subcritical systems devoted to transmutation, the new cycle processes for a global management of actinides, and some other nuclear systems like the molten salt reactors (MSR) and the supercritical water reactors (SCWR). This paper presents the R and D strategy for each technology with its priorities, steps, financial means and collaborations. (J.S.)

  15. Nuclear power planning study for Bangladesh

    International Nuclear Information System (INIS)

    1975-01-01

    The country's interest in and plans for nuclear power, as well as the organizational setup and involvement of the Bangladesh Atomic Energy Commission in the planning, construction and operation of nuclear power plants, are described. The report contains some data on population, general economics, gross national product, mineral resources and energy consumption. The electricity supply system, its development, generating and transmission facilities, costs of existing plants and plants under construction, various systems operation criteria, economic criteria and technical data on existing generating units are given. A number of appendixes have been included to provide additional and background information on the computer programs, methods of forecasting load, methodology and parameters used, fossil and nuclear fuel costs, general technical and economic data on thermal and nuclear plants, and other appropriate data

  16. Questioning nuclear waste substitution: a case study.

    Science.gov (United States)

    Marshall, Alan

    2007-03-01

    This article looks at the ethical quandaries, and their social and political context, which emerge as a result of international nuclear waste substitution. In particular it addresses the dilemmas inherent within the proposed return of nuclear waste owned by Japanese nuclear companies and currently stored in the United Kingdom. The UK company responsible for this waste, British Nuclear Fuels Limited (BNFL), wish to substitute this high volume intermediate-level Japanese-owned radioactive waste for a much lower volume of much more highly radioactive waste. Special focus is given to ethical problems that they, and the UK government, have not wished to address as they move forward with waste substitution. The conclusion is that waste substitution can only be considered an ethical practice if a set of moderating conditions are observed by all parties. These conditions are listed and, as of yet, they are not being observed.

  17. Comparative study of contrast dacryocystogram and nuclear dacryocystogram

    International Nuclear Information System (INIS)

    Chaudhuri, T.K.; Saparoff, G.R.; Dolan, K.D.; Chaudhuri, T.K.

    1975-01-01

    A comparative study was run between conventional radiographic contrast dacryocystogram and radioisotope scan of the lacrimal drainage apparatus (henceforth called ''nuclear dacryocystogram''). A total of 20 contrast dacryocystograms (DCG), 22 irrigations, and 42 nuclear dacryocystograms (DCG) were performed in 21 patients having symptoms of obstruction in the lacrimal drainage system. The study revealed that there was a good correlation between these two diagnostic techniques and nuclear DCG was, perhaps, superior to contrast DCG. (U.S.)

  18. Review of Soviet studies related to peaceful underground nuclear explosions

    International Nuclear Information System (INIS)

    Lin, W.

    1978-01-01

    Theoretical and empirical studies of contained and crater-forming underground nuclear explosions by USSR investigators are reviewed and summarized. Published data on U.S., USSR, and French cavity-forming nuclear explosions are compared with those predicted by the formula. Empirical studies on U.S. and USSR cratering explosions, both high explosions, both high explosive and nuclear are summarized. The parameters governing an excavation explosion are reviewed

  19. Study of nuclear fuel burn-up

    International Nuclear Information System (INIS)

    Pavelescu, M.; Borza, M.

    1975-01-01

    The authors approach theoretical treatment of isotopic composition changement for nuclear fuel in nuclear reactors. They show the difficulty of exhaustive treatment of burn-up problems and introduce the principal simplifying principles. Due to these principles they write and solve analytically the evolution equations of the concentration for the principal nuclides both in the case of fast and thermal reactors. Finally, they expose and comment the results obtained in the case of a power fast reactor. (author)

  20. Theoretical studies in hadronic and nuclear physics

    International Nuclear Information System (INIS)

    Griffin, J.J.; Cohen, T.D.

    1993-07-01

    Research in the Maryland Nuclear Theory Group focusses on problems in four basic areas of current relevance. The section on Hadrons in Nuclei reports research into the ways in which the properties of nucleons and the mesons which play a role in the nuclear force are modified in the nuclear medium. QCD sum rules supply a new insight into the decrease of the nucleon's mass in the nuclear medium. The quark condensate decreases in nuclear matter, and this is responsible for the decrease of the nucleon's mass. The section on the Structure of Hadrons reports progress in understanding the structure of the nucleon. These results cover widely different approaches -- lattice gauge calculations, QCD sum rules, quark-meson models with confinement and other hedgehog models. Progress in Relativistic Nuclear Physics is reported on electromagnetic interactions in a relativistic bound state formalism, with applications to elastic electron scattering by deuterium, and on application of a two-body quasipotential equation to calculate the spectrum of mesons formed as bound states of a quark and antiquark. A Lorentz-invariant description of the nuclear force suggests a decrease of the nucleon's mass in the nuclear medium similar to that found from QCD sum rules. Calculations of three-body bound states with simple forms of relativistic dynamics are also discussed. The section on Heavy Ion Dynamics and Related Processes describes progress on the (e + e - ) problem and heavy-on dynamics. In particular, the sharp electrons observed in β + irradiation of heavy atoms have recently been subsumed into the ''Composite Particle Scenario,'' generalizing the ''(e + e - -Puzzle'' of the pairs from heavy ion collisions to the ''Sharp Lepton Problem.''

  1. An object-oriented computational model to study cardiopulmonary hemodynamic interactions in humans.

    Science.gov (United States)

    Ngo, Chuong; Dahlmanns, Stephan; Vollmer, Thomas; Misgeld, Berno; Leonhardt, Steffen

    2018-06-01

    This work introduces an object-oriented computational model to study cardiopulmonary interactions in humans. Modeling was performed in object-oriented programing language Matlab Simscape, where model components are connected with each other through physical connections. Constitutive and phenomenological equations of model elements are implemented based on their non-linear pressure-volume or pressure-flow relationship. The model includes more than 30 physiological compartments, which belong either to the cardiovascular or respiratory system. The model considers non-linear behaviors of veins, pulmonary capillaries, collapsible airways, alveoli, and the chest wall. Model parameters were derisved based on literature values. Model validation was performed by comparing simulation results with clinical and animal data reported in literature. The model is able to provide quantitative values of alveolar, pleural, interstitial, aortic and ventricular pressures, as well as heart and lung volumes during spontaneous breathing and mechanical ventilation. Results of baseline simulation demonstrate the consistency of the assigned parameters. Simulation results during mechanical ventilation with PEEP trials can be directly compared with animal and clinical data given in literature. Object-oriented programming languages can be used to model interconnected systems including model non-linearities. The model provides a useful tool to investigate cardiopulmonary activity during spontaneous breathing and mechanical ventilation. Copyright © 2018 Elsevier B.V. All rights reserved.

  2. Strategically oriented management and controlling of resource intensive projects

    International Nuclear Information System (INIS)

    Kemmeter, Sascha

    2015-01-01

    The book on strategically oriented management and controlling of resource intensive projects covers the following issues: frame of project management and project controlling, classification of the decommissioning of nuclear facilities as resource intensive projects, research design for case studies, results of the study of project management specific characteristics of decommissioning, reference model for the project management of nuclear facility decommissioning.

  3. DC slice ion imaging study of atomic orbital orientation and alignment in photodissociation

    Science.gov (United States)

    Lee, Suk Kyoung

    A complete study of atomic photofragment polarization has been achieved by using DC slice imaging, a recently developed approach directly providing the central slice of the full 3D product distribution without any mathematical transformation. In this dissertation, the quantum mechanical treatment adapted for the sliced images has been derived to extract the angular momentum polarization anisotropy parameters for any recoil speeds. The important photodissociation dynamics of small polyatomic molecules has been presented based on the thorough interpretation of the observed orientation and alignment. The first demonstration of DC slice imaging of orbital polarization was a study of the 193 nm photodissociation of ethylene sulfide, followed by detailed investigation in ozone and OCS. In ozone, the speed-dependent orientation was measured for O(1D2) atom produced from photodissociation in the 248--285 nm region. The results show negligible orbital orientation following dissociation by circularly polarized light but strong recoil speed-dependent orientation following photolysis by linearly polarized light at all wavelengths studied. The origin of this polarization is ascribed to nonadiabatic transitions at avoided crossings and at long range. The atomic orbital alignment and orientation, including the higher order moments (K = 3, 4), has been carried out for the photodissociation of OCS at 193 nm. The observed speed-dependent beta and polarization parameters of S(1D2) atom support the interpretation that there are two main dissociation processes: a simultaneous two-surface excitation and the initial single-surface excitation followed by the nonadiabatic crossing to the ground state. The angle- and speed-dependent density matrix can be constructed containing the higher order contributions for circularly-polarized dissociation light. It was shown in one case that the higher order contributions should not be overlooked for an accurate picture of the dissociation dynamics in

  4. Study of rare nuclear processes with CUORE

    Science.gov (United States)

    Alduino, C.; Alfonso, K.; Avignone, F. T.; Azzolini, O.; Bari, G.; Bellini, F.; Benato, G.; Bersani, A.; Biassoni, M.; Branca, A.; Brofferio, C.; Bucci, C.; Camacho, A.; Caminata, A.; Canonica, L.; Cao, X. G.; Capelli, S.; Cappelli, L.; Cardani, L.; Carniti, P.; Casali, N.; Cassina, L.; Chiesa, D.; Chott, N.; Clemenza, M.; Copello, S.; Cosmelli, C.; Cremonesi, O.; Creswick, R. J.; Cushman, J. S.; D’Addabbo, A.; D’Aguanno, D.; Dafinei, I.; Davis, C. J.; Dell’Oro, S.; Deninno, M. M.; di Domizio, S.; di Vacri, M. L.; Dompè, V.; Drobizhev, A.; Fang, D. Q.; Faverzani, M.; Ferri, E.; Ferroni, F.; Fiorini, E.; Franceschi, M. A.; Freedman, S. J.; Fujikawa, B. K.; Giachero, A.; Gironi, L.; Giuliani, A.; Gladstone, L.; Gorla, P.; Gotti, C.; Gutierrez, T. D.; Han, K.; Heeger, K. M.; Hennings-Yeomans, R.; Huang, H. Z.; Keppel, G.; Kolomensky, Yu. G.; Leder, A.; Ligi, C.; Lim, K. E.; Ma, Y. G.; Marini, L.; Martinez, M.; Maruyama, R. H.; Mei, Y.; Moggi, N.; Morganti, S.; Nagorny, S. S.; Napolitano, T.; Nastasi, M.; Nones, C.; Norman, E. B.; Novati, V.; Nucciotti, A.; Nutini, I.; O’Donnell, T.; Ouellet, J. L.; Pagliarone, C. E.; Pallavicini, M.; Palmieri, V.; Pattavina, L.; Pavan, M.; Pessina, G.; Pira, C.; Pirro, S.; Pozzi, S.; Previtali, E.; Reindl, F.; Rosenfeld, C.; Rusconi, C.; Sakai, M.; Sangiorgio, S.; Santone, D.; Schmidt, B.; Schmidt, J.; Scielzo, N. D.; Singh, V.; Sisti, M.; Taffarello, L.; Terranova, F.; Tomei, C.; Vignati, M.; Wagaarachchi, S. L.; Wang, B. S.; Wang, H. W.; Welliver, B.; Wilson, J.; Wilson, K.; Winslow, L. A.; Wise, T.; Zanotti, L.; Zhang, G. Q.; Zimmermann, S.; Zucchelli, S.

    2018-03-01

    TeO2 bolometers have been used for many years to search for neutrinoless double beta decay in 130Te. CUORE, a tonne-scale TeO2 detector array, recently published the most sensitive limit on the half-life, T1/20ν > 1.5 × 1025 yr, which corresponds to an upper bound of 140-400 meV on the effective Majorana mass of the neutrino. While it makes CUORE a world-leading experiment looking for neutrinoless double beta decay, it is not the only study that CUORE will contribute to in the field of nuclear and particle physics. As already done over the years with many small-scale experiments, CUORE will investigate both rare decays (such as the two-neutrino double beta decay of 130Te and the hypothesized electron capture in 123Te), and rare processes (e.g. dark matter and axion interactions). This paper describes some of the achievements of past experiments that used TeO2 bolometers, and perspectives for CUORE.

  5. Nuclear magnetic resonance studies of metabolic regulation

    International Nuclear Information System (INIS)

    Sillerud, L.O.; Han, C.H.; Whaley, T.W.

    1983-01-01

    Nuclear magnetic resonance (NMR) techniques for the detection of the metabolic transformations of biological compounds labeled with stable isotopes, particularly carbon-13 have been explored. We have studied adipose tissue in the intact rat, the exteriorized epididymal fat pad, and the isolated adipocyte. Triacylglycerol metabolism in adipose tissue is regulated by lipogenic factors (insulin, corticosterone, thyroxine, and growth hormone) and lipolytic factors (glucagon and catecholamines). The synthesis of triglyceride from 5.5 mM glucose was stimulated by about 4-fold by 10 nM insulin. Triglyceride synthesis from glucose in the presence of insulin occurred at a rate of 330 nmol/hr/10 6 cells. Since the NMR signals from free and esterified fatty acids and glycerol are distinct, we could directly measure the rate of hormone-stimulated lipolysis. Epinephrine (10 μM) gave a lipolytic rate of 0.30 μmol/hr/10 6 cells as monitored by free-glycerol appearance in the medium. 13 C NMR provides a superior method for the measurement of triglyceride metabolism since it directly measures the changes in the substrates and products in situ

  6. Nuclear magnetic resonance studies of lipoproteins

    International Nuclear Information System (INIS)

    Hamilton, J.A.; Morrisett, J.D.

    1986-01-01

    Several nuclei in lipoproteins are magnetically active and are thus potential NMR probes of lipoprotein structure. Table I lists the magnetic isotopes preset in the covalent structures of the molecular constituents of lipoproteins: lipids, proteins, and carbohydrates. Every type of nucleus that is part of the endogenous structure of these molecules has at least one magnetic isotope. Each magnetic nucleus represents an intrinsic and completely nonperturbing probe (when at the natural abundance level) of local molecular motion and magnetic environment. The NMR experiment itself is also nonperturbing and nondestructive. Table I also lists for each nucleus its nuclear spin, its natural isotopic abundance, its sensitivity, and its resonance frequency at two commonly employed magnetic in the low field range (21.14 kG or 2.11 Tesla) and the other in the high field range (47.0 kG or 4.70 Tesla). Of the nuclei listed in Table I, /sup 1/H, /sup 13/C, and /sup 31/P have been the primary ones studied in lipoproteins. The general advantages and disadvantages afforded by these and other nuclei as probes of lipoprotein structure are discussed. /sup 13/C NMR spectroscopy, the method which has had the most extensive application (and probably has the greatest future potential) to lipoproteins, is treated in greatest detail, but many of the principles described apply to other nuclei as well

  7. Feasibility study for the Nuclear Research Centre of the Nuclear Energy Commission

    International Nuclear Information System (INIS)

    1985-01-01

    The feasibility study was carried out in order to evaluate the possibility of building a Nuclear Research Centre in Uruguay, which would support a wide range of nuclear related technological activities. A market research was carried out, of the products to be manufactured at the Nuclear Centre, regarding the size of production. A detailed list of the main products considered is enclosed. The siting study was performed through the analysis of the incidental factors, such as environment, technical scope and socio-ecomonic factors. An engineering study for the main installations was done. The investment and financial sources were also studied

  8. Concurrent polysubstance use in a longitudinal study of US youth: associations with sexual orientation.

    Science.gov (United States)

    Kecojevic, Aleksandar; Jun, Hee-Jin; Reisner, Sari L; Corliss, Heather L

    2017-04-01

    To estimate longitudinal associations between self-reported sexual orientation and past-year polysubstance use among youth, and test how gender, age and early onset of tobacco and alcohol use contributed to variation in polysubstance use. Longitudinal community-based cohort of US adolescents from the Growing Up Today Study (GUTS 1) (n = 16 873) followed from ages 12-29 years. United States of America. A total of 13 519 individuals (7839 females; 5680 males) who responded to at least one of five self-administered questionnaires from 1999 to 2010. Ninety-three per cent reported their race/ethnicity as non-Hispanic white. Multivariable repeated measures generalized estimating equations estimated relative risks (RRs) of concurrent polysubstance use (i.e. past 12-month use of three or more substances) comparing sexual orientation minority youth [i.e. mostly heterosexual (MH), bisexual (BI), gay/lesbian (GL)] to their same-gender, completely heterosexual (CH) counterparts. Mediation analyses tested whether early onset of tobacco and/or alcohol use explained relationships between sexual orientation and concurrent polysubstance use. Compared with their same-gender CH peers, sexual minorities evidenced higher risk for concurrent polysubstance use over all repeated measures [risk ratios (RRs) for sexual minority subgroups: from 1.63-2.91, P-values: sexual minorities and CHs were larger among females than males (P-values for sexual orientation × gender interactions were sexual orientation × age interactions were Sexual minorities' younger age of smoking and/or drinking initiation contributed to their elevated polysubstance use (% of effect explained was between 9.4-24.3, P-values: 0.04-Sexual minority youth in the United States, and in particular younger females, appear to be at disproportionate risk for concurrent past-year polysubstance use. Early onset of smoking and drinking may contribute to elevated risk of polysubstance use among sexual minorities. © 2016

  9. Three-dimensional growth simulation: A study of substrate oriented films

    International Nuclear Information System (INIS)

    Besnard, A; Martin, N; Carpentier, L

    2010-01-01

    Monte Carlo simulations are developed to simulate the growth of three-dimensional columnar microstructure in thin films. We are studying in particular oriented microstructure like those produced with the Glancing Angle Deposition technique (GLAD). Some geometrical characteristics of the particles flux, the organization of defect sites on the substrate surface and the atomic surface diffusion are mainly investigated in order to predict the growth processes and the resulting features of the films. This study reports on simulations of thin film growth exhibiting an oblique and zigzag columnar microstructure. Column angle evolution and density are investigated versus incidence angle α or period number n and compared with experimental measurements.

  10. An observation tool for studying patient-oriented workflow in hospital emergency departments.

    Science.gov (United States)

    Ozkaynak, M; Brennan, P

    2013-01-01

    Studying workflow is a critical step in designing, implementing and evaluating informatics interventions in complex sociotechnical settings, such as hospital emergency departments (EDs). Known approaches to studying workflow in clinical settings attend to the activities of individual clinicians, thus being inadequate to characterize patient care as a cooperative work. The purpose of this paper is twofold. First, we introduce a novel, theory-driven patient-oriented workflow methodology, which better addresses the complex, multiple-provider nature of patient care. Second, we report the development of an observational tool and protocol for use in studies of this type, and the results of an evaluation study. We created a tablet computer implementation of an instrument to efficiently capture patient-oriented workflow, and evaluated it through a field study in three EDs. We focused on activities occurring over time during a single patient care episode as well as the roles of the ED staff members who conducted the activities. The evidence generated supports the validity, viability, and reliability of the tool. The coverage of the tool in terms of activities and roles was satisfactory. The tool was able to capture the sequence of activity-role pairs for 108 patient care episodes. The inter-rater reliability assessment yielded a high kappa value (0.79). The patient-oriented workflow methodology has the potential to facilitate modeling patient care in EDs by characterizing both roles and activities in sequence. The methodology also provides researchers and practitioners a more realistic and comprehensive workflow perspective that can inform the design, implementation and evaluation of health information technology interventions.

  11. Transportation capabilities study of DOE-owned spent nuclear fuel

    Energy Technology Data Exchange (ETDEWEB)

    Clark, G.L.; Johnson, R.A.; Smith, R.W. [Packaging Technology, Inc., Tacoma, WA (United States); Abbott, D.G.; Tyacke, M.J. [Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)

    1994-10-01

    This study evaluates current capabilities for transporting spent nuclear fuel owned by the US Department of Energy. Currently licensed irradiated fuel shipping packages that have the potential for shipping the spent nuclear fuel are identified and then matched against the various spent nuclear fuel types. Also included are the results of a limited investigation into other certified packages and new packages currently under development. This study is intended to support top-level planning for the disposition of the Department of Energy`s spent nuclear fuel inventory.

  12. Nuclear Criticality Technology and Safety Project parameter study database

    International Nuclear Information System (INIS)

    Toffer, H.; Erickson, D.G.; Samuel, T.J.; Pearson, J.S.

    1993-03-01

    A computerized, knowledge-screened, comprehensive database of the nuclear criticality safety documentation has been assembled as part of the Nuclear Criticality Technology and Safety (NCTS) Project. The database is focused on nuclear criticality parameter studies. The database has been computerized using dBASE III Plus and can be used on a personal computer or a workstation. More than 1300 documents have been reviewed by nuclear criticality specialists over the last 5 years to produce over 800 database entries. Nuclear criticality specialists will be able to access the database and retrieve information about topical parameter studies, authors, and chronology. The database places the accumulated knowledge in the nuclear criticality area over the last 50 years at the fingertips of a criticality analyst

  13. A study on the globalization of nuclear development

    Energy Technology Data Exchange (ETDEWEB)

    Jeong, Hwan Sam; Kim, Hyun Jun [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1996-05-01

    Nuclear power technology in Korea has been reached at about 95 % level to self-reliance, which has developed energetically since mid of 1980s. Nowadays, it is required to set up globalization of nuclear policy to ensure the introduction of more advanced technologies and to enlarge the use of their developed technologies. In this study, prospects of nuclear power and wastes management, international safeguards, and international co-operation were analyzed focusing on the International Atomic Energy Agency to support timely the introduction of advanced technologies and assure international nuclear communities of Korean nuclear transparency in order to enhance the national policy for self-reliance on their future technology development. This study can be applied to the efficient implementation of Korean nuclear development policy and globalization policy as well. 3 tabs., 1 fig., 13 refs. (Author).

  14. A study on the globalization of nuclear development

    International Nuclear Information System (INIS)

    Jeong, Hwan Sam; Kim, Hyun Jun

    1996-05-01

    Nuclear power technology in Korea has been reached at about 95 % level to self-reliance, which has developed energetically since mid of 1980s. Nowadays, it is required to set up globalization of nuclear policy to ensure the introduction of more advanced technologies and to enlarge the use of their developed technologies. In this study, prospects of nuclear power and wastes management, international safeguards, and international co-operation were analyzed focusing on the International Atomic Energy Agency to support timely the introduction of advanced technologies and assure international nuclear communities of Korean nuclear transparency in order to enhance the national policy for self-reliance on their future technology development. This study can be applied to the efficient implementation of Korean nuclear development policy and globalization policy as well. 3 tabs., 1 fig., 13 refs. (Author)

  15. Case studies of application of nuclear forensics to analyze nuclear trafficking activities

    International Nuclear Information System (INIS)

    Hrnecek, E.; Mayer, K.; Schubert, A.; Wallenius, M.

    2010-01-01

    Discuses the use of nuclear forensics to identify the source of 14 uranium pellets found in Germany. The pellets were found to be homogeneous typical of western european PWR pellets. Based on geometry Siemens , Germany was identified as the only possible manufacturer. The other case study considered was on a metal can containing of 18 grams of uranium dioxide powder found at ulm together with a lead foil containing 1.8 kilograms of uranium dioxide powder plus pellets of Uranium. Four other case studies are considered. the case studies demonstrates the use of nuclear forensics as a key element in combating illicit trafficking of nuclear materials.

  16. Nuclear weapons and NATO operations: Doctrine, studies, and exercises

    International Nuclear Information System (INIS)

    Karber, P.A.

    1994-01-01

    A listing of papers is presented on the doctrine, studies, and exercises dealing with nuclear weapons and NATO operations for the period 1950-1983. The papers deal with studies on massive retaliation, sword and shield, and flexible response. Some of the enduring issues of nuclear weapons in NATO are listed

  17. Moessbauer effects on oriented nuclei

    International Nuclear Information System (INIS)

    Sayouti, E.H.

    1984-01-01

    Standard nuclear orientation methods (not sensitive to the polarization) do not give information on the sign of the magnetic moment. Mossbauer effect separates right-hand and left-hand circularly polarized components, thus its detection on oriented nuclei (T approximately 10 mK) gives the sign of the magnetic moment of oriented state. In this thesis we applied this method to study the 3/2 - ground states of 191 Pt and 193 Os, which are in the prolate-oblate transition region, where assignement of experimental levels to theoretical states is often umbiguous. We show that for those nuclei the sign of the magnetic moment is the signature of the configuration, and its determination establishes the correspondance between experimental and theoretical levels [fr

  18. Gender differences in positive life orientation among the nursing home elders in China: A cross-sectional study.

    Science.gov (United States)

    Jin, Cheng; Zheng, Zhibo; Xian, Wei; Bai, Ming; Jin, Liying; Li, Yuting; Yang, Xiufei; Sheng, Yang; Ai, Wensi; Liu, Hongbo

    2017-09-01

    Life orientation among the nursing home elders would differ from those of community-dwelling elders due to the different living environment, but may have greater differences in gender. This study was designed to investigate the positive life orientation and explore the potential risk factors including gender disparities among nursing home elders in China. This cross-sectional study was conducted in Northeast China. Two steps cluster sampling procedure were chosen. Basic activities of daily living (BADL) and instrumental activities of daily living (IADL) systems were used to estimate the functional status. Positive life orientation was measured using the six-question life orientation scale (LOS). 2512 nursing home elders were enrolled in the study. The mean age of the participants was 73.14±6.746years. Of the 1308 men and 1204 women, 14.9% had a positive life orientation in women and 16.1% in men. Higher level of education, independent in BADL and IADL were related to positive life orientation both in men and women. Age and BMI were also found to be significantly associated with positive life orientation in men (OR=0.587, 1.132, respectively). For women, the influence of income and vision on positive life orientation was also significant (OR=1.967, 1.926, respectively). The positive life orientation was higher in men than women. The gender-specific differences contribute to take more effective measures to improve the positive life orientation. Copyright © 2017 Elsevier B.V. All rights reserved.

  19. Studies of works management and automation of nuclear power installations

    International Nuclear Information System (INIS)

    Besch, P.; Grossmann, J.; Hollasky, R.

    1989-01-01

    Erection and operation of nuclear power installations require investigations on their safety and availability. The works performed on the management of nuclear power plants and nuclear heating stations in the Working Group on Automation Engineering of the Dresden University of Technology are presented. Emphasis of the works is on simulation of dynamical performance of the plants and studies on the utilization of novel techniques concerning plant automation and process management. (author)

  20. Productivity studies of the nuclear waste programme

    International Nuclear Information System (INIS)

    Lundberg, Haakan

    2002-08-01

    The Swedish Nuclear Inspectorate reviews and supplements the SKB proposal for cost estimations for the nuclear waste programme. These estimations are of great importance for the determination of annual fees to the Nuclear Waste Fund and guarantee amounts in accordance with the Financing Act. The majority of the Nuclear Waste Fund's assets are invested in real interest bonds, issued by the Swedish state. The average duration for the Nuclear Waste Fund investments was 12.8 years at the end of December 2001. From July 1, 2002 on the Nuclear waste Fund investments will consist of nominal and real bonds on the official market. The Fund is increased in line with the Consumer Price Index (KPI). If real costs within the nuclear waste programme increase at a faster rate than the KPI, there is a risk that the Nuclear Waste Fund will be 'under balanced'. SKI has developed a weighted index, the KBS-3-index, to compare the SKB cost re-estimate with. Productivity changes have however no impact on these indices. The KBS-3-index indicates that there might be a risk that the de facto, cost increases will exceed KPI. An improved productivity might however balance the cost escalations. Productivity is normally defined as production divided by the input of production factors. The production can be a quantity measurement or the value added. A common approach is calculation of the labour productivity. The productivity development within different industries in Sweden and in EU varies, and is not only positive. The so called DEA method is used for productivity and efficiency measurements in public and private operations. Efficiency evaluations based on known norms are not made with the DEA models. Instead the evaluation is performed in relation to an empirically based reference technology, a relative efficiency. A selection or an optimisation of output is difficult for the nuclear waste programme. It is not possible to change parts of the nuclear waste programme to something else

  1. Global study of nuclear modifications on parton distribution functions

    Directory of Open Access Journals (Sweden)

    Rong Wang

    2017-07-01

    Full Text Available A global analysis of nuclear medium modifications of parton distributions is presented using deeply inelastic scattering data of various nuclear targets. Two obtained data sets are provided for quark and gluon nuclear modification factors, referred as nIMParton16. One is from the global fit only to the experimental data of isospin-scalar nuclei (Set A, and the other is from the fit to all the measured nuclear data (Set B. The scale-dependence is described by DGLAP equations with nonlinear corrections in this work. The Fermi motion and off-shell effect, nucleon swelling, and parton–parton recombination are taken into account together for modeling the complicated x-dependence of nuclear modification. The nuclear gluon shadowing in this paper is dynamically generated by the QCD evolution of parton splitting and recombination processes with zero gluon density at the input scale. Sophisticated nuclear dependence of nuclear medium effects is studied with only two free parameters. With the obtained free parameters from the global analysis, the nuclear modifications of parton distribution functions of unmeasured nuclei can be predicted in our model. Nuclear modification of deuteron is also predicted and shown with recent measurement at JLab.

  2. In vivo studies. In vivo nuclear medicine

    International Nuclear Information System (INIS)

    Syrota, A.; CEA, 91 - Orsay

    1997-01-01

    A historical review of the use of radioelements for biological applications and nuclear medicine is presented: planar gamma-scintigraphy, invented in 1957, which gives planar projections of the radioactivity distribution in an organ; tomography, which gives sections of an organ and reconstructed three-dimensional images; positron emission tomography, invented in the 70's, gives brain section images with carbon 11, nitrogen 13 and oxygen 15. Coupled utilization of these techniques with other functional image systems such as nuclear magnetic resonance, enables simultaneous anatomic and functional information such as cognitive functions and cerebral localizations

  3. Nuclear power planning and feasibility studies

    International Nuclear Information System (INIS)

    Streeton, D.F.

    1977-01-01

    This lecture will review the basic steps associated with planning the introduction of nuclear power. Areas covered will include power market surveys, energy resources evaluations, potential alternative strategies, organisational factors and implementational requirements. The lecture will then consider the implications and requirements associated with establishing the feasibility of a nuclear project. Among others, aspects of power systems integration, site selection reactor type evaluation, cost and economic analysis, influence of contracting strategies, comparison with alternative power generation solutions, financial impact, etc. will be discussed and reviewed. (HK) [de

  4. Statistical spectroscopic studies in nuclear structure physics

    International Nuclear Information System (INIS)

    Halemane, T.R.

    1979-01-01

    The spectral distribution theory establishes the centroid and width of the energy spectrum as quantities of fundamental importance and gives credence to a geometry associated with averages of the product of pairs of operators acting within a model space. Utilizing this fact and partitioning the model space according to different group symmetries, simple and physically meaningful expansions are obtained for the model interactions. In the process, a global measure for the goodness of group symmetries is also developed. This procedure could eventually lead to a new way of constructing model interactions for nuclear structure studies. Numerical results for six (ds)-shell interactions and for scalar-isospin, configuration-isospin, space symmetry, supermultiplet and SU(e) x SU(4) group structures are presented. The notion of simultaneous propagation of operator averages in the irreps of two or more groups (not necessarily commuting) is also introduced. The non-energy-weighted sum rule (NEWSR) for electric and magnetic multipole excitations in the (ds)-shell nuclei 20 Ne, 24 Mg, 28 Si, 32 S, and 36 Ar are evaluated. A generally applicable procedure for evaluating the eigenvalue bound to the NEWSR is presented and numerical results obtained for the said excitations and nuclei. Comparisons are made with experimental data and shell-model results. Further, a general theory is given for the linear-energy-weighted sum rule (LEWSR). When the Hamiltonian is one-body, this has a very simple form (expressible in terms of occupancies) and amounts to an extension of the Kurath sum rule to other types of excitations and to arbitrary one-body Hamiltonians. Finally, we develop a statistical approach to perturbation theory and inverse-energy-weighted sum rules, and indicate some applications

  5. Study of EBSD Experiment Parameters Influence on Computation of Polycrystalline Pole Figures and Orientation Distribution Function

    Directory of Open Access Journals (Sweden)

    Antonova Anastasia O.

    2016-01-01

    Full Text Available Mathematical model for a polycrystalline specimen and EBSD experiment is proposed. As the measurement parameters, the scanning step and the threshold disorientation angle are considered. To study the impact of the measurement parameters Pole Figures and Orientation Distribution Function of model specimen and corresponding ones, calculated from model EBSD measurements, are compared. The real EBSD experiment was also performed. The results of the model experiment are correlated with such detected in the real EBSD data. The most significant results are formulated in the given work.

  6. The orientation study activity: diagnosis and approach to a possible solution

    Directory of Open Access Journals (Sweden)

    Sergio Luís Alea García

    2010-06-01

    Full Text Available The orientation toward the study activity is one of the most important didactic functions that most be completed in the direction to the teaching-learning process, depending on it the efficien cy to complete the others. Professors assume extreme positions responding to theoretical traditional models and it generally goes parallelly to the development, which marks negatively the process and the results. Some of the causes were identified that are impacting in this problem; a possible solution is proposed and based.

  7. Study on orientation mechanisms of poly(vinylidenefluoride-trifluoroethylene) molecules aligned by atomic force microscopy

    International Nuclear Information System (INIS)

    Kimura, Kuniko; Kobayashi, Kei; Yamada, Hirofumi; Horiuchi, Toshihisa; Ishida, Kenji; Matsushige, Kazumi

    2006-01-01

    We have developed a molecular orientation control technique for polymers utilizing contact-mode atomic force microscopy (AFM). In this paper, we studied the molecular alignment mechanism of this technique by applying it to poly(vinylidenefluoride-trifluoroethylene) (P(VDF-TrFE)). The resultant alignment and formed crystal size were strongly dependent on the temperature during the modification. They also depended on the scan line spacing of the modification. These results made the alignment mechanism clear. The obtained molecular alignment was stable against the heat treatment even at the temperatures just below T m

  8. Feasibility study of a zone approach concept for the nuclear fuel cycle of Argentina

    International Nuclear Information System (INIS)

    Saavedra, Analia D.; Castro, Laura B.; Mairal, M.L.; Maceiras, Elena; Fernandez Moreno, Sonia; Vicens, Hugo E.; Llacer, Carlos D.; Valentino, Lucia I.

    1999-01-01

    An important part of the nuclear material inventory in Argentina is placed in the nuclear fuel cycle devoted to nuclear power generation, with a high frequency of transfers of such material amongst the nuclear facilities involved. These facilities mostly handle natural uranium. At present, the safeguards systems for these facilities is based on 'Facility Approach' concept. Therefore, for each one of them an independent safeguards approach is applied. However, there are specific procedures that while maintaining or increasing safeguards effectiveness may reduce the inspection resources required in the field. One of these procedures is the 'Zone Approach', by means of which there is a reduction in the need for verifying inventory changes amongst the involved facilities and provides assurance against borrowing of nuclear material within the zone. This paper describes the features of the facilities included in the study, the present safeguards approach applied to them and a feasibility analysis of a zone approach scheme. The comparison between 'facility specific approach' and a 'zone approach' would allow determining whether a reduction of the inspection effort currently applied to fulfil the quantitative safeguards criteria in force for these facilities is obtained. On the other hand, a result showing a relevant reduction on the inspection effort while maintaining safeguards effectiveness would permit to re-orient these resources for an optimum application of the 'Strengthened Safeguards System'. (author)

  9. Study of nuclear level density parameter and its temperature dependence

    International Nuclear Information System (INIS)

    Nasrabadi, M. N.; Behkami, A. N.

    2000-01-01

    The nuclear level density ρ is the basic ingredient required for theoretical studies of nuclear reaction and structure. It describes the statistical nuclear properties and is expressed as a function of various constants of motion such as number of particles, excitation energy and angular momentum. In this work the energy and spin dependence of nuclear level density will be presented and discussed. In addition the level density parameter α will be extracted from this level density information, and its temperature and mass dependence will be obtained

  10. UK Nuclear Science Forum. Progress report: Data studies during 2000

    International Nuclear Information System (INIS)

    Nichols, A.L.

    2001-06-01

    The UK Nuclear Science Forum (UKNSF) now meets once per year to discuss issues of direct relevance to forum members, and to review nuclear data for application in the UK nuclear industry. Links are also maintained through the year, mainly through e-mail and the normal postal system. Work of immediate interest includes the measurement and evaluation of decay data (e.g., half-lives and gamma-ray emission probabilities), fission yields and thermal neutron cross sections; all known UK studies in 2000 are summarised in this document. Specific applications and international links of relevance in the field of nuclear data are also described

  11. Tactical nuclear studies: a more comprehensive approach

    International Nuclear Information System (INIS)

    Blumenthal, D.; Kooshian, C.; Reinhardt, G.; Staehle, G.

    1975-01-01

    A matrix scheme for evaluating complex tactical nuclear systems is proposed. Advantages resulting from consideration of system characteristics in peace and crisis as well as war include avoidance of scenario-dependent conclusions, ease of maintaining awareness of relationships between immediate concerns and the complex whole, and highlighting of areas or concerns that have been overlooked or neglected

  12. Studies in Low-Energy Nuclear Science

    Energy Technology Data Exchange (ETDEWEB)

    Carl R. Brune; Steven M. Grimes

    2010-01-13

    This report presents a summary of research projects in the area of low energy nuclear reactions and structure, carried out between March 1, 2006 and October 31, 2009 which were supported by U.S. DOE grant number DE-FG52-06NA26187.

  13. Inelastic x-ray study of plasmons in oriented single and multi-walled carbon nanotubes

    International Nuclear Information System (INIS)

    Casa, D.M.; Upton, M.H.; Gog, T.; Misewich, J.; Hill, J.P.; Lowndes, D.; Eres, G.

    2006-01-01

    Carbon nanotubes (CNT) have a wide variety of interesting properties and a large number of potential aplications in electronic and optical devices. In this study we concentrate on one important aspect of their electronic stucture: the plasmon dispersions in both single- and multi-wall CNTs and their relation to those in graphite. For the first time inelastic X-ray scattering is used to study these collective electronic excitations in oriented CNT samples. The experiments were performed on the IXS instrument at beamline 9ID CMC-XOR, APS, ANL. The incident energy was defined by a Si(333) monochromator, a spherically bent Ge(733) diced analyzer at the end of a 1-m arm focused the incident radiation onto a solid-state detector. The overall resolution was ∼300 meV FWHM. The incident photons were linearly polarized perpendicular to the scattering plane. Energy loss scans were taken by varying the incident energy while keeping the exit energy fixed at 8.9805 keV. The momentum transfer was kept along the nanotubes axis. Spectra were taken at room temperature. The samples were oriented CNTs (both single- and multi-wall) grown on a Si substrate. The samples referred to as 'single-wall' were in fact a few walls at most (1-5) while the multi-walled ones had ∼12 walls. Fig. 1. shows the inelastic spectra for the single-, multi-wall, and highly oriented pyrolithic graphite (HOPG) from top to bottom. Momentum transfer was Q = 0.79 (angstrom) -1 in all cases, its direction was along the tubes for the first two samples or parallel to the sheets for graphite. The peaks at ∼10 and ∼30 eV are known as the π and σ + π plasmons respectively. Fig. 2. shows the complete dispersion curves for both plasmon modes as a function of momentum transfer for all three samples.

  14. Strategically oriented project management of the decommissioning of nuclear power plants; Strategieorientiertes Projektmanagement der Stilllegung von Kernkraftwerken

    Energy Technology Data Exchange (ETDEWEB)

    Kemmeter, Sascha [Conscore GmbH, Duesseldorf (Germany); Woempener, Andreas [Duisburg-Essen Univ., Duisburg (Germany). Lehrstuhl fuer ABWL und Controlling

    2013-12-15

    Due to the politically induced change of the energy sector in Germany, the operators of nuclear power plants had to react and to deal with completely new conditions concerning the decommissioning of their plants on short notice. Therefore the operators have to devise new strategies for controlling their decommissioning and dismantling projects in a short amount of time and most often similarly for several plants. Two fundamental procedures are possible for the successful controlling of these dismantling projects: a centralized or a decentralized management organization. How these project control processes can be realized in an optimal way, is, next to other economic specifications of the dismantling of nuclear power plants, the topic of a new research project of the Chair of Management Accounting at the University Duisburg-Essen. In that process, results and experiences from other research and practical projects concerning general large-scale projects are being used. Selected findings have been compiled and are being discussed in this paper. (orig.)

  15. Why Process-Orientation is Scarce: An Empirical Study of Process-oriented Information Systems in the Automotive Industry

    NARCIS (Netherlands)

    Mutschler, B.B.; Bumiller, J.; Reichert, M.U.

    2006-01-01

    Several studies have indicated that existing information systems (IS) often fail to provide adequate business process support. To systematically identify the reasons for this drawback, we conducted a case study in the automotive domain and a survey among 79 IT practitioners. This paper presents the

  16. A study on the effectiveness of the orientation process and cross-cultural training for the expatriate

    Directory of Open Access Journals (Sweden)

    Maxwell Agabu Phiri

    2015-11-01

    Full Text Available This paper focuses on the effectiveness of the orientation process and cross-cultural training (CCT and its impact on cross-cultural adjustment for the expatriate. The objective of the study on which this paper is based is to evaluate the effectiveness of the orientation process for expatriates and to determine the need for a separate orientation and culture training. By improving the orientation process and identifying a need for culture specific training, the company can thus eliminate relocation and replacement costs. The main objective of this research is to design a guideline for the implementation of a culture specific orientation process for the expatriate. This will be done based on the recommendations made by the respondents of the survey. The paper reviews different writings in the areas of cross-cultural training, cross-cultural adjustment, the orientation process and the expatriate. The study highlights specific issues regarding cultural training, assignment failure and success, and the expatriate experiences. The research is motivated by the need to reduce assignment failure and the subsequent costs associated with engaging expatriation, and ensure smooth transition into a new culture. The research methodology utilized was qualitative, based on structured questionnaires and personal interviews. The study attempts to recommend, based on the findings, a culture centered orientation process for the expatriate

  17. Control-oriented modeling of the energy-production of a synchronous generator in a nuclear power plant

    International Nuclear Information System (INIS)

    Fodor, Attila; Magyar, Attila; Hangos, Katalin M.

    2012-01-01

    Nuclear Power Plant (Hungary) is developed in this paper based on first engineering principles that is able to describe the time-varying active and reactive power output of the generator. These generators are required to take part in the reactive power support of the power grid following the demand of a central dispatch center, and also contribute to the frequency control of the grid. The developed model has been verified under the usual controlled operating conditions when the frequency and the active power are controlled. Static and dynamic sensitivity analysis has been applied to determine the model parameters to be estimated. The model parameters have been estimated applying the asynchronous parallel pattern search method using real measured data from the nuclear power plant. The confidence regions in the parameter space have been analyzed by investigating the geometry of the estimation error function. The developed model can serve as a basis for controlling the optimal energy production of the generator using both the active and reactive power components. -- Highlights: ► A dynamic model of a synchronous generator in a Nuclear Power Plant is developed. ► The model has been verified under the usual controlled operating conditions. ► The sensitivity analysis has been applied to determine the model parameters. ► The parameters have been estimated applying the APPS method using measured data. ► The model serves as a basis for controlling the optimal energy production of the generator.

  18. Sky Compass Orientation in Desert Locusts-Evidence from Field and Laboratory Studies.

    Science.gov (United States)

    Homberg, Uwe

    2015-01-01

    Locusts are long-range migratory insects. At high population density, immature animals form marching hopper bands while adults take off and form huge swarms of millions of animals. At low population densities animals are solitarious, but likewise migrate, mostly during the night. Numerous studies aimed at predicting locust infestations showed that migrations both as hopper bands and as adults are largely downwind following seasonal shifts of the tropical convergence zone taking the animals to areas of rainfall. Only a few studies provided evidence for active orientation mechanisms, including the involvement of a sun compass. This scarcity of evidence stands in contrast to recent neurobiological data showing sophisticated neuronal adaptations suited for sky compass navigation. These include a special dorsal eye region with photoreceptors suited to analyze the polarization pattern of the sky and a system of topographically arranged sky compass neurons in the central complex of the brain. Laboratory experiments, moreover, demonstrated polarotaxis in tethered flying animals. The discrepancy of these findings call for more rigorous field studies on active orientation mechanisms in locusts. It remains to be shown how locusts use their internal sky compass during mass migrations and what role it plays to guide solitarious locusts in their natural habitat.

  19. Sky compass orientation in desert locusts – evidence from field and laboratory studies

    Directory of Open Access Journals (Sweden)

    Uwe eHomberg

    2015-12-01

    Full Text Available Locusts are long-range migratory insects. At high population density, immature animals form marching hopper bands while adults take off and form huge swarms of millions of animals. At low population densities animals are solitarious, but likewise migrate, mostly during the night. Numerous studies aimed at predicting locust infestations showed that migrations both as hopper bands and as adults are largely downwind following seasonal shifts of the tropical convergence zone taking the animals to areas of rainfall. Only a few studies provided evidence for active orientation mechanisms, including the involvement of a sun compass. This scarcity of evidence stands in contrast to recent neurobiological data showing sophisticated neuronal adaptations suited for sky compass navigation. These include a special dorsal eye region with photoreceptors suited to analyze the polarization pattern of the sky and a system of topographically arranged sky compass neurons in the central complex of the brain. Laboratory experiments, moreover, demonstrated polarotaxis in tethered flying animals. The discrepancy of these findings call for more rigorous field studies on active orientation mechanisms in locusts. It remains to be shown how locusts use their internal sky compass during mass migrations and what role it plays to guide solitarious locusts in their natural habitat.

  20. Orienting and maintenance of attention to threatening facial expressions in anxiety--an eye movement study.

    Science.gov (United States)

    Holas, Pawel; Krejtz, Izabela; Cypryanska, Marzena; Nezlek, John B

    2014-12-15

    Cognitive models posit that anxiety disorders stem in part from underlying attentional biases to threat. Consistent with this, studies have found that the attentional bias to threat-related stimuli is greater in high vs. low anxious individuals. Nevertheless, it is not clear if similar biases exist for different threatening emotions or for any facial emotional stimulus. In the present study, we used eye-tracking to measure orienting and maintenance of attention to faces displaying anger, fear and disgust as threats, and faces displaying happiness and sadness. Using a free viewing task, we examined differences between low and high trait anxious (HTA) individuals in the attention they paid to each of these emotional faces (paired with a neutral face). We found that initial orienting was faster for angry and happy faces, and high trait anxious participants were more vigilant to fearful and disgust faces. Our results for attentional maintenance were not consistent. The results of the present study suggest that attentional processes may be more emotion-specific than previously believed. Our results suggest that attentional processes for different threatening emotions may not be the same and that attentional processes for some negative and some positive emotions may be similar. Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.

  1. Molecular bond formation in Na* + N2 energy transfer: Crossed beam study of atomic alignment and orientation

    International Nuclear Information System (INIS)

    Reiland, W.; Jamieson, G.; Tittes, U.; Hertel, I.V.

    1982-01-01

    We report the first full analysis of collisionally induced atomic alignment and orientation for a molecular collision process. In an experiment with crossed supersonic beams of N 2 and laser excited Na(3 2 Psub(3/2)) we have studied the dependence of angular and energy resolved differential quenching cross sections as a function of the linear and circular polarization of the exciting laser light. The ansisotropies observed in the linear polarization data range up to 2:1 when corrected for electron and nuclear spin relaxation. The maximum effect is found at small scattering angles and intermediate energy transfer where the cross section is also largest. The atomic alignment angle most favourable for quenching relates to the scattering angle and can be understood in a model picture in such a way that the (NaN 2 )* molecular system is formed at internuclear distances as low as R = 10a 0 . The circular asymmetry is small but with significant structure and is attributed to interaction on different potential surfaces at R > 10a 0 . Full analysis of the four measurable parameter is given in terms of the density matrix in a frame with z-axis perpendicular to collision plane which allows a clear understanding of the properties of atomic reflection symmetry and coherence of the scattering process. (orig.)

  2. Some aspects of nuclear power development in Russian and studies on its optimal long term structure

    International Nuclear Information System (INIS)

    Ermakov, N.I.; Poplavsky, V.M.; Troyanov, M.F.; Oussanov, V.I.; Chebeskov, A.N.; Malenkov, A.V.; Gordeev, B.K.

    1997-01-01

    The paper presents the authors' outlook for nuclear power development in Russia. The analysis is based on the documents published and other materials as well as on the experience of the authors who participated in working out the state fuel-power program Power Strategy of Russia. The crucial point of the Strategy is that moratorium on the nuclear power development in Russia is inadmissible and a part of electricity production in the country will be covered by NPPs with increased safety. The studies which have been carried out by the organizations of MINATOM and ROSENERGOATOM and by some authors have shown that a potential of the Russia nuclear power complex meets the requirements of the nuclear power development up to year 2010. From the standpoint of the authors of the paper the investment climate in the country is the most important and uncertain factor influencing the program realization. But nuclear power preserves competitive ability in any option of new electric capacities introduced in Russia. Application of the market-oriented IAEA's planning tools have confirmed the competitive ability of nuclear power in the central region of Russia. This study is to be continued for other Russian regions. The estimates of the long-term prospects of nuclear power development in Russia made by the authors are based on the assumptions of natural uranium resources conservation, plutonium stockpile minimization and reduction of the radiotoxical waste to the lowest possible level. These requirements may be answered in the plutonium balanced system of thermal and fast reactors with a very economical consumption of natural uranium and a very small quantity of radioactive waste (mainly consisting of fission products and losses in reprocessing operations). (author)

  3. Savannah River Laboratory hydrogeochemical and stream sediment reconnaissance. Raw data release. III. Orientation study in the Williamsport, Pennsylvania, area

    International Nuclear Information System (INIS)

    Price, V.; Ferguson, R.B.; Baucom, E.I.

    1976-09-01

    This report presents raw data from an orientation study in the Williamsport 1 0 x 2 0 AMS Quadrangle. The data includes sample locality maps, tables of water quality and field measurement data, and tables of uranium analyses

  4. 76 FR 50274 - Terrestrial Environmental Studies for Nuclear Power Stations

    Science.gov (United States)

    2011-08-12

    ... Draft Regulatory Guides in the ``Regulatory Guides'' collection of the NRC's Library at http://www.nrc... Stations AGENCY: Nuclear Regulatory Commission. ACTION: Draft regulatory guide; request for comment... draft regulatory guide (DG), DG-4016, ``Terrestrial Environmental Studies for Nuclear Power Stations...

  5. Energy and nuclear power planning study for Armenia

    International Nuclear Information System (INIS)

    2004-07-01

    The Energy and Nuclear Power Planning (ENPP) study for Armenia has been conducted under the technical cooperation programme of the International Atomic Energy Agency (IAEA). The objective of the study was to analyze the electricity demand as part of the total final energy demand in various scenarios of Armenian socioeconomic and technological development, and to develop economically optimized electric generating system expansion plans for meeting the electric power demand, and to assess the role that nuclear energy could play within these optimal programs. The specific objectives of this study were: to define the role that nuclear power could play in the future electricity supply in Armenia, based on a least-cost expansion planning analysis of the country's power system; to analyze the environmental impacts of such a nuclear power development; to evaluate the financial viability of the envisaged nuclear power development program; to train a group of Armenian experts in the use of the IAEA's energy models

  6. Nuclear legislation analytical study. Regulatory and institutional framework for nuclear activities

    International Nuclear Information System (INIS)

    1997-01-01

    This study is the second update of the 1995 edition of a series of analytical studies on nuclear legislation in OECD member countries, prepared by the OECD Nuclear Energy Agency (NEA) with the co-operation of the countries concerned. It is organised on the basis of a standardised format for all countries, thus facilitating the comparison of information. This study deals with national legislations concerning nuclear third party liability and other aspects of nuclear laws (transport, radiation protection, trade, radioactive waste management, public and semi-public agencies...). The 1997 update consists of replacement chapters for Australia, France, Germany, Korea, Norway, Sweden, and the United Kingdom. In addition, there are completely new chapters for the Czech Republic, Hungary and Poland. (A.L.B.)

  7. Low-Carbon Transportation Oriented Urban Spatial Structure: Theory, Model and Case Study

    Directory of Open Access Journals (Sweden)

    Yuyao Ye

    2017-12-01

    Full Text Available Optimising the spatial structure of cities to promote low-carbon travel is a primary goal of urban planning and construction innovation in the low-carbon era. There is a need for basic research on the structural characteristics that help to reduce motor traffic, thereby promoting energy conservation. We first review the existing literature on the influence of urban spatial structure on transport carbon dioxide emissions and summarise the influence mechanisms. We then present two low-carbon transportation oriented patterns of urban spatial structure including the traditional walking city and the modern transit metropolis, illustrated by case studies. Furthermore, we propose an improved model Green Transportation System Oriented Development (GTOD, which is an extension of traditional transit-oriented development (TOD and includes the additional features of a walking city and an emphasis on the integration of land use with a green transportation system, consisting of the public transportation and non-auto travel system. A compact urban form, effective mix of land use and appropriate scale of block are the basic structural features of a low-carbon transportation city. However, these features are only effective at promoting low-carbon transportation when integrated with the green traffic systems. Proper integration of the urban structural system with the green space system is also required. The optimal land use/transportation integration strategy is to divide traffic corridors with wedge-shaped green spaces and limit development along the transit corridors. This strategy forms the basis of the proposed urban structural model to promote low-carbon transportation and sustainable urban growth management.

  8. Corrosion process studies in a nuclear waste container

    International Nuclear Information System (INIS)

    Guasp, Ruben A.; Lanzani, Liliana A.; Coronel, Pascual; Bruzzoni, Pablo; Semino, Carlos J.

    1999-01-01

    Latest results on corrosion behavior studies on high activity nuclear waste container are reported. Corrosion evaluation on lead base alloys and modeling to predict carbon steel external container cover generalized corrosion, are the main issues of these studies. (author)

  9. Secondary school learners' perceptions of responsible citizenship as taught in the life orientation learning area: a case study

    OpenAIRE

    2008-01-01

    In this study, secondary school learners perceptions of Responsible Citizenship as taught in the Life Orientation learning area are explored. Citizen Education, which is set out in Learning Outcome Two of the Life Orientation Curriculum, forms the basis of the programme used to conduct this study. An international as well as a national perspective of Responsible Citizenship and the teaching thereof is explicated with special reference being made to the Further Education and Training Band. The...

  10. New applications of orientation imaging microscopy (OIM) for characterizing nuclear component failure modes, reliability assessment, and fitness-for-service

    International Nuclear Information System (INIS)

    Lehockey, E.M.; Brennenstuhl, A.M.; Pagan, S.; Clark, M.A.; Perovic, V.

    2007-01-01

    Orientation Imaging Microscopy (OIM) has proved a valuable asset for evaluating material performance as far as establishing the root cause and mechanism(s) of in-service degradation, and the likelihood of the onset of future degradation. Strains from deformation/cold work are imaged based on the spatial density of sub-structure distributed globally or surrounding defects/irregularities, which concentrate stresses responsible for driving degradation. This is complimented with measurements of material properties including texture, Taylor Factor, grain boundary structure, and grain size that contribute to resisting propagation of pre-existing defects and/or nucleating future attack. From evaluating the factors driving degradation within the context of microstructure properties that govern material susceptibility come estimates for the likelihood of attack as a necessary element of establishing fitness for service. By way of numerous examples the merits and limitations of OIM are summarized and compared with other characterization techniques. (author)

  11. History of health studies around nuclear facilities: a methodologival consideration

    International Nuclear Information System (INIS)

    Tokuhata, G.K.; Smith, M.W.

    1981-01-01

    A brief historical review was made of low-level radiation studies for general populations living around nuclear facilities. In addition, technical and methodological problems were identified and discussed which often arise in all epidemiological studies designed to determine the possible health effects of low-level radiation released from nuclear facilities. Need for extremely large populations for prospective cancer studies was discussed, but accompanying ascertainment difficulties were also emphasized. More epidemiological studies are needed to provide adequate assessment of the potential health hazards of nuclear facilities

  12. Siting studies for new nuclear power plants in Argentina

    International Nuclear Information System (INIS)

    Barbaran, Gustavo A.

    2008-01-01

    This paper is a summary of the thesis prepared by the Group of Prospective and Energy Planning of the National Atomic Energy Commission for the 'Specialization on Applications of Nuclear Technology Course' of the Instituto Balseiro in 2007. It describes the evolution of siting studies through time and the main focus worldwide in this type of studies. Then, it makes a brief review of previous siting studies of nuclear power plants conducted in Argentina. It carries out a description of the methodology to conduct a site evaluation for nuclear power plants according to actual international criteria. Finally, it describes the licensing process that follows every site study. (author) [es

  13. Study on information dissemination for effective nuclear risk communication

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2013-08-15

    The aim of this study are to develop an information system and guideline for nuclear risk communication between expert and citizens as well as between both experts in terms of lessons learned from serious disaster such as Fukushima Dai-ich NPP accident. Technical standards for disseminating a result and process of seismic/tsunami PRA (Probabilistic Risk Assessment) of nuclear facility as well as nuclear risk information in an emergency, and risk communication in normal times are needed. Tins study examines the framework, contents, and technical basis for developing an information system for nuclear risk communication. In addition, this study identifies the communication issues of nuclear risk communication concerning the seismic/tsunami PRA through the testing information systems in areas around nuclear facilities and by providing effective implementation guidelines. JNES has developed the information system specified as Protection of Nuclear Power Plants against Tsunamis and Post Earthquake considerations in the External Zone (TiPEEZ) as part of IAEA International Seismic Safety Centre (ISSC) Extra Budgetary Programme (EBP). The EBP is currently preparing technical documents (TECDOC) regarding the implementation of the TiPEEZ. After the Fukushima accident, there has been increasing demand for disaster mitigation systems to share risk information between nuclear organizations and local municipalities. JNES and Niigata Institute of Technology conduct implementation of TiPEEZ for the practical use based on the corroborative works with Kashiwazaki city and citizens. (author)

  14. Study on information dissemination for effective nuclear risk communication

    International Nuclear Information System (INIS)

    2013-01-01

    The aim of this study are to develop an information system and guideline for nuclear risk communication between expert and citizens as well as between both experts in terms of lessons learned from serious disaster such as Fukushima Dai-ich NPP accident. Technical standards for disseminating a result and process of seismic/tsunami PRA (Probabilistic Risk Assessment) of nuclear facility as well as nuclear risk information in an emergency, and risk communication in normal times are needed. Tins study examines the framework, contents, and technical basis for developing an information system for nuclear risk communication. In addition, this study identifies the communication issues of nuclear risk communication concerning the seismic/tsunami PRA through the testing information systems in areas around nuclear facilities and by providing effective implementation guidelines. JNES has developed the information system specified as Protection of Nuclear Power Plants against Tsunamis and Post Earthquake considerations in the External Zone (TiPEEZ) as part of IAEA International Seismic Safety Centre (ISSC) Extra Budgetary Programme (EBP). The EBP is currently preparing technical documents (TECDOC) regarding the implementation of the TiPEEZ. After the Fukushima accident, there has been increasing demand for disaster mitigation systems to share risk information between nuclear organizations and local municipalities. JNES and Niigata Institute of Technology conduct implementation of TiPEEZ for the practical use based on the corroborative works with Kashiwazaki city and citizens. (author)

  15. Case Study of Oriental Medicine Treatment with Acupotomy Therapy of the Peroneal Nerve Palsy through Ultrasound Case Report

    Directory of Open Access Journals (Sweden)

    Kim Sungha

    2011-03-01

    Full Text Available Purpose: In order to estimate clinical effects of Oriental Medicine Treatment with acupotomy therapy of Peroneal nerve Palsy. Methods: From 10th June, 2010 to 19th June, 2010, 1 female patient diagnosed as Peroneal nerve Palsy(clinical diagnosed was treated with general oriental medicine therapy (acupuncture, pharmacopuncture,moxibustion, cupping, physical therapy, herbal medication and acupotomy. Results: The patient's left foot drop was remarkably improved. Conclusions: This study demonstrates that oriental medical treatment with acuputomy therapy has notable effect in improving symptoms of peroneal nerve palsy. as though we had not wide experience in this treatment, more research is needed.

  16. Digital study of nuclear reactor instrument

    International Nuclear Information System (INIS)

    Lv Gongxiang; Yang Zhijun

    2006-01-01

    The paper introduces the design method of nuclear reactor's digital instrument developed by authors based on the AT89C52 single chip microcomputer. Also the instrument system hardware structure and software framework are given. The instrument apply DDC112 which is responsible for the measure of lower current. When designing the instrument system, anti-interference measure of software, especially hardware is considered seriously. (authors)

  17. Nuclear power planning study for Venezuela

    International Nuclear Information System (INIS)

    1978-01-01

    The optimum capacity for nuclear power plants that might be built in Venezuela in the period 1985-2000 and the best time for incorporating them into the electric system is defined. The most recent forecasts regarding growth of the population and demand, and of the economy in general, and the taking into account the costs for the fossil-fuel and hydroelectric resources known to exist in Venezuela, as compared with the costs of importing uranium, are discussed

  18. Case studies: Managing nuclear information in Colombia

    International Nuclear Information System (INIS)

    Oviedo, L.G.

    2004-01-01

    The advances in the managing of nuclear information in Colombia are present, this has allowed recapturing the activities starting from 1999 contributing the INIS the results of the investigations related with the AIEA mission, for benefit of the international scientific community. Thanks to the support of the directive and to my own managing, year after year the efforts are reflected, through a constant increase of the records to the INIS, like in the participation in the RRIAN in Latin America. (author)

  19. Studies of the CNESTEN's Nuclear Research Centre

    International Nuclear Information System (INIS)

    Alami, R.

    1988-11-01

    The different steps of the methodology applied to the site selection of Maamora's Nuclear Research Centre, within a 20 km wide coastal band preliminarily fixed between Kenitra and Casablanca cities, are outlined: delimitation of potential zones, identification of potential sites, selection of preferred sites. A particular attention is given to the criterium of the methodology applied to the preferred sites classifying. 1 map, 2 tabs, 2 refs. (F.M.)

  20. A study on relationship between market orientation's culture and exporting performance: A case study of manufacturing corporations listed on Tehran Stock Exchange

    Directory of Open Access Journals (Sweden)

    Omid Behboodi

    2013-12-01

    Full Text Available Increasing trade, the globalization of products and services, as well as the internationalization of specific firms have steadily accentuated the importance of export performance. This study examines the relationship between market orientation culture with three components including customer orientation, competitor orientation, interfunctional-coordination on increasing export capabilities through firm age and size. Using the data gathered from 111 selected firms over the period 2006-2010, the study has applied correlation ratios as well as structural equation modeling to examine various hypotheses. The survey has concluded that being market oriented increases market capabilities through increasing firm size and age.

  1. Emergency Department Query for Patient-Centered Approaches to Sexual Orientation and Gender Identity : The EQUALITY Study.

    Science.gov (United States)

    Haider, Adil H; Schneider, Eric B; Kodadek, Lisa M; Adler, Rachel R; Ranjit, Anju; Torain, Maya; Shields, Ryan Y; Snyder, Claire; Schuur, Jeremiah D; Vail, Laura; German, Danielle; Peterson, Susan; Lau, Brandyn D

    2017-06-01

    The Institute of Medicine and The Joint Commission recommend routine documentation of patients' sexual orientation in health care settings. Currently, very few health care systems collect these data since patient preferences and health care professionals' support regarding collection of data about patient sexual orientation are unknown. To identify the optimal patient-centered approach to collect sexual orientation data in the emergency department (ED) in the Emergency Department Query for Patient-Centered Approaches to Sexual Orientation and Gender Identity study. An exploratory, sequential, mixed-methods design was used first to evaluate qualitative interviews conducted in the Baltimore, Maryland, and Washington, DC, areas. Fifty-three patients and 26 health care professionals participated in the qualitative interviews. Interviews were followed by a national online survey, in which 1516 (potential) patients (244 lesbian, 289 gay, 179 bisexual, and 804 straight) and 429 ED health care professionals (209 physicians and 220 nurses) participated. Survey participants were recruited using random digit dialing and address-based sampling techniques. Qualitative interviews were used to obtain the perspectives of patients and health care professionals on sexual orientation data collection, and a quantitative survey was used to gauge patients' and health care professionals' willingness to provide or obtain sexual orientation information. Mean (SD) age of patient and clinician participants was 49 (16.4) and 51 (9.4) years, respectively. Qualitative interviews suggested that patients were less likely to refuse to provide sexual orientation than providers expected. Nationally, 154 patients (10.3%) reported that they would refuse to provide sexual orientation; however, 333 (77.8%) of all clinicians thought patients would refuse to provide sexual orientation. After adjustment for demographic characteristics, only bisexual patients had increased odds of refusing to provide sexual

  2. Study of laser cladding nuclear valve parts

    International Nuclear Information System (INIS)

    Shi Shihong; Wang Xinlin; Huang Guodong

    1998-12-01

    The mechanism of laser cladding is discussed by using heat transfer model of laser cladding, heat conduction model of laser cladding and convective transfer mass model of laser melt-pool. Subsequently the laser cladding speed limit and the influence of laser cladding parameters on cladding layer structure is analyzed. A 5 kW with CO 2 transverse flow is used in the research for cladding treatment of sealing surface of stop valve parts of nuclear power stations. The laser cladding layer is found to be 3.0 mm thick. The cladding surface is smooth and has no such defects as crack, gas pore, etc. A series of comparisons with plasma spurt welding and arc bead welding has been performed. The results show that there are higher grain grade and hardness, lower dilution and better performances of resistance to abrasion, wear and of anti-erosion in the laser cladding layer. The new technology of laser cladding can obviously improve the quality of nuclear valve parts. Consequently it is possible to lengthen the service life of nuclear valve and to raise the safety and reliability of the production system

  3. The generation of an allowable P/T curve of a nuclear RPV using a display-oriented system

    International Nuclear Information System (INIS)

    Hsiming Pan

    1992-01-01

    A program on personal computer to calculate the allowable pressure and temperature curves for nuclear reactor pressure vessels was developed which would facilitate frequent updating. Analytical solutions and the Green's function approach were used to calculate thermal transient responses in the beltline region. The mathematical formulae and the applicable code rules were computerized in a display format. With this novel application, the program is as readable as a report, debugging is much easier than other programming languages; and engineers can easily convert it for different code criteria. (Author)

  4. Systematic review of perceptive studies on nuclear risk; Revisao sistematica de estudos perceptivos sobre risco nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Freitas, Mariana Gama de

    2014-07-01

    This present work contains the study of risk perception in different areas of interaction. For it was made an analysis using methodology previously recognized and tested: a systematic review in the search for better understanding of the perception of risk in the nuclear area. Through this study it was possible to understand the potential of the systematic review as a tool for information that encompass the perception of risk as a whole. Making it possible to trace parameters to find out why the world's people have an aversion to certain matters relating to nuclear energy. Considering that if you can understand what drives the people has disgust on nuclear area, it is probably possible to create alternatives to remedy this lack of information and knowledge about the area. Causing the population to realize the benefits that nuclear power brings to people. (author)

  5. Studies of Fluctuation Processes in Nuclear Collisions

    Energy Technology Data Exchange (ETDEWEB)

    Ayik, Sakir [Tennessee Technological Univ., Cookeville, TN (United States). Dept. of Physics

    2016-04-14

    The standard one-body transport approaches have been extensively applied to investigate heavy-ion collision dynamics at low and intermediate energies. At low energies the approach is the mean-field description of the time-dependent Hartree-Fock (TDHF) theory. At intermediate energies the approach is extended by including a collision term, and its application has been carried out mostly in the semi-classical framework of the Boltzmann-Uhling-Uhlenbeck (BUU) model. The standard transport models provide a good understanding of the average properties of the collision dynamics in terms of the effective interactions in both low and intermediate energies. However, the standard models are inadequate for describing the fluctuation dynamics of collective motion at low energies and disassembling of the nuclear system into fragments at intermediate energies resulting from the growth of density fluctuations in the spinodal region. Our tasks have been to improve the standard transport approaches by incorporating fluctuation mechanisms into the description. There are mainly two different mechanisms for fluctuations: (i) Collisional fluctuations generated by binary nucleon collisions, which provide the dominant mechanism at intermediate energies, and (ii) One-body mechanism or mean-field fluctuations, which is the dominant mechanism at low energies. In the first part of our project, the PI extended the standard transport model at intermediate energies by incorporating collisional mechanism according to the “Generalized Langevin Description” of Mori formalism. The PI and his collaborators carried out a number of applications for describing dynamical mechanism of nuclear multi fragmentations, and nuclear collective response in the semi-classical framework of the approach, which is known as the Boltzmann-Langevin model. In the second part of the project, we considered dynamical description at low energies. Because of the effective Pauli blocking, the collisional dissipation and

  6. Nuclear Cyber Security Case Study and Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Park, Sunae [ChungNam National Univ., Daejeon (Korea, Republic of); Kim, Kyung doo [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2016-10-15

    Due to the new trend in cyber attacks, there is an increased security threat towards every country's infrastructure. So, security measures are required now than ever before. Previous cyber attacks normal process consists of paralyzing a server function, data extraction, or data control into the IT system for trespassing. However, nowadays control systems and infrastructures are also targeted and attacking methods have changed a lot. These days, the virus is becoming increasingly serious and hacker attacks are also becoming more frequent. This virus is a computer virus produced for the purpose of destroying the infrastructure, such as power plants, airports, railways June 2010, and it was first discovered in Belarus. Israel, the US, and other countries are believed culprits behind Stuxnet attacks on other nations such as Iran. Recent malware distribution, such as website hacking threat is growing. In surveys today one of the most long-term posing security threats is from North Korea. In particular, North Korea has been caught launching ongoing cyber-attacks after their latest nuclear test. South Korea has identified national trends regarding North Korean nuclear tests and analyzed them in order to catch disclosed confidential information. Especially, many nuclear power plants in the world are found to be vulnerable to cyber-attacks. Industrial facilities should be more wary of the risk of a serious cyber attack in the middle is going to increase the reliance on universal and commercial digital systems (off the shelf) software, civilian nuclear infrastructure. Senior executives’ current risk rate levels are increasing. Digitalization of the perception of risk is lacking in nuclear power plants and workers are creating prevention methods to make them fully aware of the risks of cyber-attacks. It is suggested that it may be inappropriate to assume we are prepared for potential attacks. Due to advances in technology, a warning that the growing sense of crisis

  7. Nuclear Cyber Security Case Study and Analysis

    International Nuclear Information System (INIS)

    Park, Sunae; Kim, Kyung doo

    2016-01-01

    Due to the new trend in cyber attacks, there is an increased security threat towards every country's infrastructure. So, security measures are required now than ever before. Previous cyber attacks normal process consists of paralyzing a server function, data extraction, or data control into the IT system for trespassing. However, nowadays control systems and infrastructures are also targeted and attacking methods have changed a lot. These days, the virus is becoming increasingly serious and hacker attacks are also becoming more frequent. This virus is a computer virus produced for the purpose of destroying the infrastructure, such as power plants, airports, railways June 2010, and it was first discovered in Belarus. Israel, the US, and other countries are believed culprits behind Stuxnet attacks on other nations such as Iran. Recent malware distribution, such as website hacking threat is growing. In surveys today one of the most long-term posing security threats is from North Korea. In particular, North Korea has been caught launching ongoing cyber-attacks after their latest nuclear test. South Korea has identified national trends regarding North Korean nuclear tests and analyzed them in order to catch disclosed confidential information. Especially, many nuclear power plants in the world are found to be vulnerable to cyber-attacks. Industrial facilities should be more wary of the risk of a serious cyber attack in the middle is going to increase the reliance on universal and commercial digital systems (off the shelf) software, civilian nuclear infrastructure. Senior executives’ current risk rate levels are increasing. Digitalization of the perception of risk is lacking in nuclear power plants and workers are creating prevention methods to make them fully aware of the risks of cyber-attacks. It is suggested that it may be inappropriate to assume we are prepared for potential attacks. Due to advances in technology, a warning that the growing sense of crisis about

  8. A study on the establishment of national nuclear foreign policy

    International Nuclear Information System (INIS)

    Choi, Y.M.; Kim, H.S.; Lee, K.S.; Lee, B.Y.; Lee, J.S.; Choi, Y.L.

    1993-01-01

    The overall objective of this study is to analyze international non-proliferation circumstances, to suggest national strategies and tactics for international meetings non-proliferation and peaceful uses of nuclear energy, and to establish domestic non-proliferation systems for international credibility. This study suggests two revision proposals for the IAEA Statute Article VI as a means for the permanent membership in the Board, evaluates benefits and losses of the membership of the international export control regime, and suggests strategies for building a domestics nuclear export control system. This study contributes to enhancing international credibility and promoting self-reliance of nuclear technology in Korea. (Author)

  9. The Strategically Oriented Approach to Studying the Economic Sustainability of Enterprises

    Directory of Open Access Journals (Sweden)

    Ponomarenko Tеtyana V.

    2017-03-01

    Full Text Available The article presents the constructive consideration of modern approaches to the study of the essence of economic sustainability. It is noted that they are focused on sustainability as a status of the economic system. It is actualized that such an approach does not correspond to the system-synergetic methodology, according to which sustainability has a dualistic nature: as a status and as a property of the system to be stable. The key provisions of the traditional approach to understanding the essence of economic sustainability are systematized. Based on the productive synthesis of the system-synergetic methodology and modern achievements of the theory of strategic management, there formed the author’s conceptual approach that extends the traditional content of economic sustainability exclusively as a status. The proposed approach extends the temporal context of sustainability from the provision of a momentary state to the formation of the possibilities for the permanent functioning of an enterprise. It is argued that these opportunities are determined by the organizational ability of companies to realize their functional purpose. This changes the priority of the managerial focus: from orientation to providing material, financial and labor resources (the traditional approach to the accumulation of resources that can not be the subject of market-based sales transactions (the strategically oriented approach.

  10. Performance study on the east-west oriented single-axis tracked panel

    International Nuclear Information System (INIS)

    Chang, Tian Pau

    2009-01-01

    A theoretical study on the performance of an east-west oriented single-axis tracked panel was originally proposed in this paper. Mathematic expressions applicable for calculating the angle that the tracked panel should rotate by to follow the Sun are derived. The incident angle of sunlight upon the panel as well as the instantaneous increments of solar energy captured by the panel relative to a fixed horizontal surface are then demonstrated graphically. To simulate different operation environments, three kinds of radiation sources will be considered, i.e. the extraterrestrial radiation, global radiation predicted by empirical models under clear sky situation and global radiation observed in Taiwan. Simulation results show that the yearly gains correlate positively with the radiation level, i.e. 21.2%, 13.5% and 7.4% for the extraterrestrial, predicted and observed radiations, respectively, which are far less than those obtained from a north-south oriented single-axis tracked panel. The irradiation increases with the maximum rotation angle of the panel, the benefit of increasing the rotation in overcast environment is not as good as in clear sky, for annual energy collection 45 o is recommended. The irradiation received decreases with latitude, but it has a greater gain in higher latitude zone.

  11. [Process-oriented cost calculation in interventional radiology. A case study].

    Science.gov (United States)

    Mahnken, A H; Bruners, P; Günther, R W; Rasche, C

    2012-01-01

    Currently used costing methods such as cost centre accounting do not sufficiently reflect the process-based resource utilization in medicine. The goal of this study was to establish a process-oriented cost assessment of percutaneous radiofrequency (RF) ablation of liver and lung metastases. In each of 15 patients a detailed task analysis of the primary process of hepatic and pulmonary RF ablation was performed. Based on these data a dedicated cost calculation model was developed for each primary process. The costs of each process were computed and compared with the revenue for in-patients according to the German diagnosis-related groups (DRG) system 2010. The RF ablation of liver metastases in patients without relevant comorbidities and a low patient complexity level results in a loss of EUR 588.44, whereas the treatment of patients with a higher complexity level yields an acceptable profit. The treatment of pulmonary metastases is profitable even in cases of additional expenses due to complications. Process-oriented costing provides relevant information that is needed for understanding the economic impact of treatment decisions. It is well suited as a starting point for economically driven process optimization and reengineering. Under the terms of the German DRG 2010 system percutaneous RF ablation of lung metastases is economically reasonable, while RF ablation of liver metastases in cases of low patient complexity levels does not cover the costs.

  12. Recovery-Oriented Mental Health Practice in a Community Care Unit: An Exploratory Study.

    Science.gov (United States)

    McKenna, Brian; Oakes, Jane; Fourniotis, Niki; Toomey, Nigel; Furness, Trentham

    A recovery-oriented model of care has become the major focus of mental health service delivery in the state of Victoria, Australia. However, there is a total absence of knowledge of recovery-oriented mental health practice in community care units (CCUs). Therefore, the aims of this exploratory study were to: (a) describe what aspects of the current model of care fit within the domains of recovery; and (b) describe the pragmatic processes that staff use to mold their care within the domains of recovery. Twenty-one key stakeholders provided informed voluntary consent to participate in one-to-one interviews. Six content domains evolved to include: (a) a common vision: "a continuous journey"; (b) promoting hope; (c) promoting autonomy and self-determination; (d) meaningful engagement; (e) holistic and personalized care; and (f) community participation and citizenship. The CCU appeared to be on a journey of transformation toward personal recovery. However, clinicians were grappling with an identified tension among personal recovery and clinical recovery. The tension among personal recovery and clinical recovery may be attributed to the psychosocial rehabilitation model of care, which was previously systemic in Victorian CCUs.

  13. Fabrication and Molecular Transport Studies of Highly c-Oriented AFI Membranes

    KAUST Repository

    Liu, Yang

    2017-01-10

    The AFI membrane with one-dimensional straight channels is an ideal platform for various applications. In this work, we report the fabrication of a highly c-oriented, compact and stable AFI membrane by epitaxial growth from an almost close-packed and c-oriented monolayer of plate-like seeds that is manually assembled on a porous alumina support. The straight channels in the membrane are not only aligned vertically along the membrane depth, but are also continuous without disruption. The transport resistance is thus minimized and as a result, the membrane shows almost two orders of magnitude greater permeance in pervaporation of hydrocarbons compared to reported values in the literature. The selectivity of p-xylene to 1,3,5-triisopropylbenzene (TIPB) is approximately 850. In addition, through gas permeation studies on a number of gas and liquid molecules, different transport mechanisms including activated Knudsen diffusion, surface diffusion and molecular sieving were discovered for different diffusion species. The ratio of kinetic diameter to channel diameter, dm/dc, and the ratio of the Lennard-Jones length constant to channel diameter, σm/dc, are found very useful in explaining the different transport behaviors. These results should be useful not only for potential industrial applications of the AFI membranes but also for the fundamental understanding of transport in nanoporous structures.

  14. Microstructure and properties of laser clad coatings studied by orientation imaging microscopy

    International Nuclear Information System (INIS)

    Ocelik, V.; Furar, I.; De Hosson, J.Th.M.

    2010-01-01

    In this work orientation imaging microscopy (OIM), based on electron backscatter diffraction in scanning electron microscopy, was employed to examine in detail the relationship between laser cladding processing parameters and he properties and the microstructure of single and overlapping laser tracks. The study was performed on thick (∼1 mm) Co-based coatings prepared by 2 kW Nd:YAG laser cladding a 42CrMo4 steel substrate using different laser beam scanning speeds (1.0-15 mm s -1 ). It was found that the directional growth of individual primary grains led to the formation of a typical solidification fiber texture. The dependence of this texture on the processing speed and the shape of the solidification front were investigated in detail. Strong epitaxial growth of Co grains on austenitic steel substrate grains was found, which did not depend on the laser beam scanning velocity. During laser cladding a strong temperature gradient exists just below the coating-substrate interface that promotes the formation of a Greninger-Troiano orientation relationship between martensitic plates and the original austenitic grain inside the heat affected zone: {1 1 1} γ ∼ 1 o to {1 1 0} α and γ ∼ 2 o to α . Relatively drastic changes in grain size at the internal coating interfaces did not exhibit sharp changes in microhardness.

  15. Orientation study of northern Arkansas. National Uranium Resource Evaluation program. Hydrogeochemical and stream-sediment reconnaissance

    International Nuclear Information System (INIS)

    Steele, K.F.

    1982-08-01

    Samples of ground water, stream water, and sediment were collected at 335 sites for an orientation study of northern Arkansas. Each stream site consisted of both sediment and stream water (if available), and each sediment sample was sieved to produce four size fractions for analysis. The orientation area included all or parts of Benton, Carroll, Madison, and Washington Counties. Several black shales, including the Chattanooga Shale, crop out in this area, and the Sylamore Sandstone Member has local radiation anomalies. The following analyses were performed for all water samples (both ground water and stream water): pH, conductivity, total alkalinity, temperature, nitrate, ammonia, phosphate and sulfate. Additional water was collected, filtered, and reacted with a resin that was then analyzed by neutron activation analysis for U, Br, Cl, F, Mn, Na, Al, and Dy. In addition, ground water samples were analyzed for He. The stream sediments were analyzed by neutron activation for U, Th, Hf, Ce, Fe, Mn, Sc, Ti, V, Al, Dy, Eu, La, Sm, Yb, and Lu

  16. MISSION-ORIENTED SENSOR ARRAYS AND UAVs – A CASE STUDY ON ENVIRONMENTAL MONITORING

    Directory of Open Access Journals (Sweden)

    N. M. Figueira

    2015-08-01

    Full Text Available This paper presents a new concept of UAV mission design in geomatics, applied to the generation of thematic maps for a multitude of civilian and military applications. We discuss the architecture of Mission-Oriented Sensors Arrays (MOSA, proposed in Figueira et Al. (2013, aimed at splitting and decoupling the mission-oriented part of the system (non safety-critical hardware and software from the aircraft control systems (safety-critical. As a case study, we present an environmental monitoring application for the automatic generation of thematic maps to track gunshot activity in conservation areas. The MOSA modeled for this application integrates information from a thermal camera and an on-the-ground microphone array. The use of microphone arrays technology is of particular interest in this paper. These arrays allow estimation of the direction-of-arrival (DOA of the incoming sound waves. Information about events of interest is obtained by the fusion of the data provided by the microphone array, captured by the UAV, fused with information from the termal image processing. Preliminary results show the feasibility of the on-the-ground sound processing array and the simulation of the main processing module, to be embedded into an UAV in a future work. The main contributions of this paper are the proposed MOSA system, including concepts, models and architecture.

  17. Sexual orientation health inequality: Evidence from Understanding Society, the UK Longitudinal Household Study.

    Science.gov (United States)

    Booker, Cara L; Rieger, Gerulf; Unger, Jennifer B

    2017-08-01

    Few studies from the United Kingdom have fully investigated inequalities between members of different sexual minority groups and heterosexuals over range of health outcomes. Using data from over 40,000 individuals, this study explores the health inequalities of sexual minority UK adults. We include respondents who identify as other and those who prefer not to say (PNS). Data come from wave three (2011-2012) of the nationally-representative Understanding Society, the UK Household Longitudinal Study. Sexual orientation was asked in the self-completion portion of the study. Markers of health include physical and mental functioning, minor psychological distress, self-rated health, substance use and disability. Multiple linear and logistic regression analyses tested for differences in markers of health between sexual orientation groups. Overall, heterosexual respondents had the best health while bisexual respondents had the worst. Gay and lesbian respondents reported poorer health than heterosexuals, specifically with regards to mental functioning, distress and illness status. The other and PNS respondents were most similar to each other and generally experienced fewer health inequalities than gay and lesbian respondents; they were less likely to use tobacco or alcohol. In sum, sexual minorities experience health inequality. The inclusion of other and PNS respondents has not been done in other studies and shows that while they may be healthier than gay/lesbian and bisexual respondents they still experiences poorer health than heterosexuals. Health promotion interventions are needed for these other and PNS individuals, who might not participate in interventions targeted toward known sexual minority groups. Copyright © 2017 The Authors. Published by Elsevier Inc. All rights reserved.

  18. A study on impact of workplace spirituality on customer–oriented organizational citizenship behavior by considering the role of spiritual intelligence: A case study of an insurance company

    Directory of Open Access Journals (Sweden)

    Jaber Moghaddampour

    2013-06-01

    Full Text Available Present study investigates the effect of workplace spirituality on customer–oriented organizational citizenship behavior by considering the role of spiritual intelligence. To measure the concepts of workplace spirituality, customer–oriented organizational citizenship behavior (CO-OCB and spiritual intelligence, the conceptualizations are applied on 282 employees of an insurance company in Tehran during the fiscal year of 2011 and the results are analyzed using structural equation modeling. The findings reveal that spiritual intelligence and workplace spirituality have positive impact on customer–oriented organizational citizenship behavior. However, when spiritual intelligence is considered as a moderating factor, spirituality development in workplace cannot alone influence on customer–oriented organizational citizenship behavior since including spiritual intelligence hedges the effect of workplace spirituality on customer–oriented organizational citizenship behavior though workplace spirituality can improve customer–oriented organizational citizenship behavior through impacting on spiritual intelligence.

  19. INFLUENCE OF CULTURAL ORIENTATION ON PERCEIVED ORGANIZATIONAL CREATIVITY CLIMATE: AN EXPLORATORY STUDY OF TWO STEEL PLANTS IN MALAYSIA

    OpenAIRE

    Hazman Shah Abdullah; Razmi Chik; Rahman Deen

    2006-01-01

    The study explores the relationship between cultural values and perceptions of the creativity climate. Asian culture is allegedly inimical to creativity and innovation in organizations. High power distance, high femininity, and greater orientation towards collectivity are discordant with the cultural underpinnings of the flatter, fluid, less formal, and networked organization. One hundred and seventy executives and nonexecutives of two steel mills were tested for the value orientation using a...

  20. Conformation, orientation and interaction in molecular monolayers: A surface second harmonic and sum frequency generation study

    International Nuclear Information System (INIS)

    Superfine, R.; Huang, J.Y.; Shen, Y.R.

    1988-12-01

    We have used sum frequency generation (SFG) to study the order in a silane monolayer before and after the deposition of a coadsorbed liquid crystal monolayer. We observe an increase in the order of the chain of the silane molecule induced by the interpenetration of the liquid crystal molecules. By using second harmonic generation (SHG) and SFG, we have studied the orientation and conformation of the liquid crystal molecule on clean and silane coated glass surfaces. On both surfaces, the biphenyl group is tilted by 70 degree with the alkyl chain end pointing away from the surface. The shift in the C-H stretch frequencies in the coadsorbed system indicates a significant interaction between molecules. 9 refs., 3 figs

  1. Strategic Orientation Towards Sustainable Innovation: A Case Study in a Brazilian University

    Directory of Open Access Journals (Sweden)

    Mauri Leodir Löbler

    2012-07-01

    Full Text Available The technological development that results from innovation can lead to considerable environmental impact. Yet, companies and other stakeholders have not done enough to develop strategies for minimizing waste management. The present study contributes to research in this area, by empirically examining the link between the management of technological innovation and sustainability. A case study was carried out to examine the extent to which there is strategic orientation towards both technological innovation and sustainability in a large public university in Brazil. The results show the importance of integrating sustainability activities within the organisation’s corporate strategy: although the researched organisation had sufficient theoretical knowledge about waste management, the lack of an integrated strategy led to uncoordinated attempts at recycling within the university.

  2. Studies on mating competitiveness of sterile oriental fruit fly, Bactrocera dorsalis (Hendel)

    International Nuclear Information System (INIS)

    Limohpasmanee, W.; Segsarnviriya, S.

    1998-01-01

    An essential prerequisite for insect control by the sterile insect technique releasing method is mass rearing and sterilizing that do not have adverse effects on longevity and mating behavior of the released males. But many laboratory studies have shown that males irradiated at the completely sterility dose often could not compete with untreated males in mating. This paper studies the effects of gamma radiation at the sterile dose on mating, sexual and sperm competitiveness of the oriental fruit fly, Bactrocera dorsalis (Hendel) under the laboratory condition. It is found that irradiation at the completely sterility dose (90 Gy) had reduced the mating and sperm competition ability of the males. Though the sexual competition was not

  3. A panel study of nuclear energy consumption and economic growth

    International Nuclear Information System (INIS)

    Apergis, Nicholas; Payne, James E.

    2010-01-01

    This study examines the relationship between nuclear energy consumption and economic growth for sixteen countries within a multivariate panel framework over the period 1980-2005. Pedroni's (1999, 2004) heterogeneous panel cointegration test reveals there is a long-run equilibrium relationship between real GDP, nuclear energy consumption, real gross fixed capital formation, and the labor force with the respective coefficients positive and statistically significant. The results of the panel vector error correction model finds bidirectional causality between nuclear energy consumption and economic growth in the short-run while unidirectional causality from nuclear energy consumption to economic growth in the long-run. Thus, the results provide support for the feedback hypothesis associated with the relationship between nuclear energy consumption and economic growth.

  4. Study of Nuclear Environment and Material Strategy

    International Nuclear Information System (INIS)

    Kamei, Takashi

    2011-01-01

    Progress of global warming requires us to establish a low-carbon society. Carbon-dioxide (CO 2 ) is emitted from two major sectors in the world. The largest CO 2 emitting sector is power sector having 46 % of the world share. Nuclear power has an important role because it does not emit CO 2 while it produces electricity. The second largest sector is transportation and has about 23 % of the world share. 73 % of transportation is land-transportation, that is to say automobile. Therefore, lots of motor-car companies are expressing their vision to supply electric vehicle (EV) or hybrid vehicle (HV) in these few years. In order to manufacture EV and HV, rare-earth materials such as neodymium (Nd) and dysprosium (Dy) are necessary. EV and HV are driven by an electric motor using permanent magnet. Nd is used to improve torque of permanent magnet. Dy is used as supplement for the case of HV in order to enhance thermal resistance because electric motor is exposed to high temperature circumference with combustion engine. 97 % of world supply of rare-earth production is shared by China. The reduction of exportation amount of rare-earth from China to Japan have brought a significant impact on Japan's industries especially for motor-car companies, which are going to supply EV and HV. Japan is going to develop new rare-earth mines outside of China such as in Vietnam. The most important problem relating to rare-earth mining is 'thorium'. The popular minerals containing rare-earth are monazite, bastnasite and so on. Thorium is mostly included in the same minerals. Therefore, thorium is separated whenever rare-earth is refined. Thorium separated in China can be stored for future usage as nuclear fuel. Though thorium began to be considered also in a working group of Atomic Energy Society of Japan since 2010, it is not clear when thorium starts to be used and how much amount of thorium will be consumed. It is estimated that consumption of thorium will be smaller than the production

  5. Nuclear-powered pacemaker fuel cladding study

    International Nuclear Information System (INIS)

    Shoup, R.L.

    1976-07-01

    The fabrication of fuel capsules with refractory metal and alloy clads used in nuclear-powered cardiac pacemakers precludes the expedient dissolution of the clad in inorganic acid solutions. An experiment to measure penetration rates of acids on commonly used fuel pellet clads indicated that it is not impossible, but that it would be very difficult to dissolve the multiple cladding. This work was performed because of a suggestion that a 238 PuO 2 -powered pacemaker could be transformed into a terrorism weapon

  6. Contribution to the study of nuclear fission

    International Nuclear Information System (INIS)

    Serot, O.

    2009-09-01

    The author proposes an overview of his research activity during the past fifteen years and more particularly that dealing with nuclear fission. The first part reports works on nucleus physics at the scission via the investigation of ternary fission (experimental procedure, influence of fission modes, influence of resonance spin, influence of excitation energy of the fissioning nucleus, emission probabilities, energy spectra of ternary alphas and tritons, emission mechanism). The second part reports measurements and assessments of neutron-induced fission cross sections. The third part reports the investigation of some properties of fission products (efficiencies, branching ratios of the main delayed neutron precursors)

  7. Seismic studies for nuclear installations sites

    International Nuclear Information System (INIS)

    Mohammadioun, B.; Faure, J.

    1988-01-01

    The french experience in seismic risks assessment for french nuclear installations permits to set out the objectives, the phases the geographic extensions of workings to be realized for the installation safety. The data to be collected for the safety analysis are specified, they concern the regional seismotectonics, the essential seismic data for determining the seism level to be taken into account and defining the soil movement spectra adapted to the site. It is necessary to follow up the seismic surveillance during the installation construction and life. 7 refs. (F.M.)

  8. Electron microscope studies on nuclear track filters

    International Nuclear Information System (INIS)

    Roell, I.; Siegmon, W.

    1982-01-01

    Nuclear track filters became more and more important in various fields of application. The filtration process can be described by a set of suitable parameters. For some applications it may be necessary to know the structure of the surface and the pores themselves. In most cases the etching process yields surfaces and pore geometries that are quite different from ideal planes and cylinders. In the presented work the production of different filter types will be described. The resulting surfaces and pore structures have been investigated by means of a scanning electron microscope. (author)

  9. DEVELOPMENTAL STUDIES OF NUCLEAR DIGITAL TRANSDUCERS

    Energy Technology Data Exchange (ETDEWEB)

    Hyde, James L.

    1963-09-15

    A pressure transducer based on mechanical modulation of a beam of alpha particles is described. This type of transducer is capable of direct digital pressure measurexnent with corresponding telemetry advantages. Any variable that is sensed through a mechanical displacement is measurable by means of a corresponding member of this transducer family. Preliminary tests of an experimental pressure transducer show an overall accuracy within a few tenths of one percent, with promise of substantial improvement. General characteristics of nuclear digital transducers include exceptional long-term calibration stability and accuracy, independent of ambient environmental effects. Three concepts of systems enipioying these transducers are discussed. (auth)

  10. [Electromagnetic studies of nuclear structure and reactions

    International Nuclear Information System (INIS)

    1991-01-01

    The past year has seen continued progress in our efforts. On the experimental side, we completed data acquisition on our major remaining involvement at NIKHEF, the 12 C(e,e'pp) experiment. We advanced the analysis of most of projects in low lying nuclear structure and giant resonances, of which several were completed and published. We received approval for several new experiments, and have made major contributions to design and development of detectors to be used at Bates and CEBAF. Our data interpretation efforts have been extended and enhanced with the availability of our new computer cluster. In this paper we briefly report on most of these efforts

  11. Retrieval orientation and the control of recollection: an fMRI study

    Science.gov (United States)

    Morcom, Alexa M.; Rugg, Michael D.

    2012-01-01

    The present study used event-related fMRI to examine the impact of the adoption of different retrieval orientations on the neural correlates of recollection. In each of two study-test blocks, subjects encoded a mixed list of words and pictures, and then performed a recognition memory task with words as the test items. In one block, the requirement was to respond positively to test items corresponding to studied words, and to reject both new items and items corresponding to the studied pictures. In the other block, positive responses were made to test items corresponding to pictures, and items corresponding to words were classified along with the new items. Based on previous event-related potential (ERP) findings, we predicted that in the word task, recollection-related effects would be found for target information only. This prediction was fulfilled. In both tasks, targets elicited the characteristic pattern of recollection-related activity. By contrast, non-targets elicited this pattern in the picture task, but not in the word task. Importantly, the left angular gyrus was among the regions demonstrating this dissociation of non-target recollection effects according to retrieval orientation. The findings for the angular gyrus parallel prior findings for the `left-parietal' ERP old/new effect, and add to the evidence that the effect reflects recollection-related neural activity originating in left ventral parietal cortex. Thus, the results converge with the previous ERP findings to suggest that the processing of retrieval cues can be constrained to prevent the retrieval of goal-irrelevant information. PMID:23110678

  12. Resort-oriented tourism development and local tourism networks – a case study from northern Finland

    Directory of Open Access Journals (Sweden)

    Outi Kulusjärvi

    2016-02-01

    Full Text Available In tourism studies, it has been widely recognized that resort-oriented tourism development creates challenges for regional development, mainly due to its enclave nature and lack of regional economic linkages. However, there have been relatively few studies on the destination-scale cooperative networks, although, they are vital in increasing the positive regional economic impacts of tourism development. This paper is an empirical qualitative study exploring the connections between resort-oriented tourism development and tourism business cooperation in the case study area of the Ruka-Kuusamo tourism destination in Northeast Finland. The interest is on how the local cooperative networks of the Ruka tourist resort are spatially constructed within the Ruka-Kuusamo tourism destination. The research data consists of semi-structured interviews conducted for ten tourism actors located in the Ruka resort. The results show that the businesses located in the Ruka resort cooperate at the regional scale mainly in marketing, while their partners in production cooperation are located mostly within the resort, particularly in its very core area. The resort appears to function as a basis for spatial identification for tourism actors, which, in turn, affects entrepreneurs’ motivation to cooperate at the local and regional scale. Tourism entrepreneurs operating in the very core of the resort perceive the area as the principal area for their operations, and therefore, they do not particularly engage with the surrounding areas and businesses or with other actors located there. Thus, for smaller enterprises outside the core, it can be difficult to benefit from the resort’s core’s growth via network relations. This contributes mainly to the development of the core areas alone, creates challenges for sustainable regional economic development in the destination region, and hinders the resort’s tourism growth in the long run.

  13. STEPS OF THE DESIGN OF CLOUD ORIENTED LEARNING ENVIRONMENT IN THE STUDY OF DATABASES FOR FUTURE TEACHERS OF INFORMATICS

    Directory of Open Access Journals (Sweden)

    Oleksandr M. Kryvonos

    2018-02-01

    Full Text Available The article describes the introduction of cloud services in the educational process of the discipline «Databases» of future teachers of informatics and the design of the cloud oriented learning environment on their basis. An analysis of the domestic experience of forming a cloud oriented learning environment of educational institutions is carried out, given interpretation of concepts «cloud oriented distance learning system», «cloud oriented learning environment in the study of databases», «the design of the cloud oriented learning environment in the study of databases for future teachers of informatics». The following stages of designing COLE are selected and described: targeted, conceptual, meaningful, component, introductory, appraisal-generalization. The structure of the educational interaction of subjects in the study of databases in the conditions of the COLE is developed by the means of the cloud oriented distance learning system Canvas, consisting of communication tools, joint work, and planning of educational events, cloud storages.

  14. Future-oriented computerized information system for power plant process control in a pilot project at Philippsburg nuclear power plant

    International Nuclear Information System (INIS)

    Woehrle, G.; Kraft, M.

    1988-01-01

    The motivation for the pilot project at Philippsburg nuclear power plant resulted from the Three Mile Island accident in 1979. The primary task embraces an efficient computer-aided reduction of information when a fault occurs based on a process engineering analysis of the information accrued. Accompanying this are a consolidation and evaluation of the information available in the control room. In this pilot project the new tasks of status monitoring, information reduction and operationalcontrol have been realized for the first time using a computer-aided process information system. In addition to the existing control computer, an information computer with approximately 1200 analogue and about 10000 binary signals has been installed. The installation of the system was completed in 1984 and in the meantime initial operational experience has become available. (orig.) [de

  15. Clear-cut and practice-oriented organization - the connecting link between man and nuclear power plant operation requirements. Eine eindeutige und praxisgerechte Organisation - das Bindeglied zwischen Mensch und Anforderungen des Kernkraftwerkbetriebes

    Energy Technology Data Exchange (ETDEWEB)

    Steiner, E.K. (Bayernwerk AG, Kernkraftwerk Grafenrheinfeld (Germany))

    1994-04-01

    Practice-oriented plant organization takes into account the human spheres of task and responsibility, training and qualification, communication and exchange of experience, setting of targets, management and control as well as motivation and loyalty. It constitutes the basis for meeting the demands on a safe and reliable nuclear power plant operation. This is demonstrated by the organization at the Grafenrheinfeld NPP. (DG)

  16. Case Study for Effectiveness Analysis on Nuclear Regulatory Infrastructure Support for Emerging Nuclear Energy Countries

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Y. E.; Byeon, M. J.; Yoo, J. W.; Lee, J. M.; Lim, J. H. [Korea Institute of Nuclear Safety, Daejeon (Korea, Republic of)

    2016-10-15

    The donor countries need to make decisions on various steps such as whether to fully accept newcomers’ requests, the depth of support, and how the supportive action will be carried out. Such is not an easy task due to limited time, resources, manpower, etc. Thus, creating an infrastructure to support emerging nuclear energy countries is needed. This paper suggests the resource portfolio concept used in business management and aims to analyze the validity of supporting the new entrants’ development of regulatory infrastructure as a case study. This study tries to develop a very simple Excel-based tool for assessing the supporting strategy quantitatively and screening the activities that is projected to be less effective and attractive. There are many countries, so called newcomers, which have expressed interests in developing their own nuclear power program. It has been recognized by the international community that every country considering embarking upon their own nuclear power program should establish their nuclear safety infrastructure to sustain a high level of nuclear safety. The newcomers have requested for considerable assistance from the IAEA and they already have bilateral cooperation programs with the advanced countries with matured nuclear regulatory programs. Currently, the regulatory bodies that provide support are confronted with two responsibilities as follows; the primary objective of the regulatory bodies is to ensure that the operator fulfills the responsibility to protect human health.

  17. Case Study for Effectiveness Analysis on Nuclear Regulatory Infrastructure Support for Emerging Nuclear Energy Countries

    International Nuclear Information System (INIS)

    Lee, Y. E.; Byeon, M. J.; Yoo, J. W.; Lee, J. M.; Lim, J. H.

    2016-01-01

    The donor countries need to make decisions on various steps such as whether to fully accept newcomers’ requests, the depth of support, and how the supportive action will be carried out. Such is not an easy task due to limited time, resources, manpower, etc. Thus, creating an infrastructure to support emerging nuclear energy countries is needed. This paper suggests the resource portfolio concept used in business management and aims to analyze the validity of supporting the new entrants’ development of regulatory infrastructure as a case study. This study tries to develop a very simple Excel-based tool for assessing the supporting strategy quantitatively and screening the activities that is projected to be less effective and attractive. There are many countries, so called newcomers, which have expressed interests in developing their own nuclear power program. It has been recognized by the international community that every country considering embarking upon their own nuclear power program should establish their nuclear safety infrastructure to sustain a high level of nuclear safety. The newcomers have requested for considerable assistance from the IAEA and they already have bilateral cooperation programs with the advanced countries with matured nuclear regulatory programs. Currently, the regulatory bodies that provide support are confronted with two responsibilities as follows; the primary objective of the regulatory bodies is to ensure that the operator fulfills the responsibility to protect human health

  18. Engineered barrier systems and canister orientation studies for the Yucca Mountain Project, Nevada

    International Nuclear Information System (INIS)

    Wilder, D.G.

    1990-07-01

    Emplacement borehole orientation directly impacts many aspects of the Engineered Barrier System (EBS) and interactions with the near field environment. This paper considers the impacts of orientation on the hydrologic portion of the environment and its interactions with the EBS. The hydrologic environments is considered from a conceptual standpoint, the numerical analyses are left for subsequent work. As reported in this paper, several aspects of the hydrological environment are more favorable for long term performance of vertically oriented rather than horizontally oriented Waste Packages. 19 refs., 15 figs

  19. INCOGEN pre-feasibility study. Nuclear cogeneration

    Energy Technology Data Exchange (ETDEWEB)

    Van Heek, A.I.; De Haas, J.B.M.; Hogenbirk, A.; Klippel, H.T.; Kuijper, J.C.; Schram, R. [Netherlands Energy Research Foundation ECN, Petten (Netherlands); Hoogenboom, J.E.; Valko, J. [Interfaculty Reactor Institute IRI, Delft (Netherlands); Kanij, J.B.W.; Eendebak, B.T.; De Groot, P.C.; De Kler, R.C.F.; Stempniewicz, M.M. [KEMA, Arnhem (Netherlands); Van Dijk, A.B.; Bredman, B.; Van Essen, D.; Holtz, E.; Op `t Veld, R.; Tjemmes, J.G. [Stork Nucon, Amsterdam (Netherlands); Crommelin, G.A.K.; Crommelin-de Jonge, M.T. [eds.] [ROMAWA, Voorschoten (Netherlands)

    1997-09-01

    The Netherlands Programme to Intensify Nuclear Competence (PINK, abbreviated in Dutch) supported the technical and economical evaluation of a direct cycle High Temperature Reactor (HTR) installation for combined heat and power generation. This helium cooled, graphite moderated HTR based on the German HTR-M, is named INCOGEN (Inherently safe Nuclear COGENeration). The INCOGEN reference is a 40 MW HTR design by the US company Longmark Power International (LPI). The energy conversion system comprises a single-shaft helium turbine-compressor (2.3-1.0 MPa) directly coupled with a 16.5 MW generator, a recuperator and low-temperature (150C to 40C) heat exchangers (23 MW). Spherical fuel elements (60 mm diameter) will be added little by little, which keeps the core only marginally critical. Void core volume can accommodate added fuel for several years until defuelling. Analyses of failure scenarios (loss of coolant accident or LOCA, loss of flow accident or LOFA, anticipated transient without scram or ATWS) show no excess of maximum acceptable fuel temperature of 1600C. Scoping analyses indicate no severe graphite fires. Transient analyses of the turbine-compressor system indicate adequate control flexibility. Optimization and endurance testing of the helium turbine-compressor is recommended.

  20. A study of earthquake-induced building detection by object oriented classification approach

    Science.gov (United States)

    Sabuncu, Asli; Damla Uca Avci, Zehra; Sunar, Filiz

    2017-04-01

    Among the natural hazards, earthquakes are the most destructive disasters and cause huge loss of lives, heavily infrastructure damages and great financial losses every year all around the world. According to the statistics about the earthquakes, more than a million earthquakes occur which is equal to two earthquakes per minute in the world. Natural disasters have brought more than 780.000 deaths approximately % 60 of all mortality is due to the earthquakes after 2001. A great earthquake took place at 38.75 N 43.36 E in the eastern part of Turkey in Van Province on On October 23th, 2011. 604 people died and about 4000 buildings seriously damaged and collapsed after this earthquake. In recent years, the use of object oriented classification approach based on different object features, such as spectral, textural, shape and spatial information, has gained importance and became widespread for the classification of high-resolution satellite images and orthophotos. The motivation of this study is to detect the collapsed buildings and debris areas after the earthquake by using very high-resolution satellite images and orthophotos with the object oriented classification and also see how well remote sensing technology was carried out in determining the collapsed buildings. In this study, two different land surfaces were selected as homogenous and heterogeneous case study areas. In the first step of application, multi-resolution segmentation was applied and optimum parameters were selected to obtain the objects in each area after testing different color/shape and compactness/smoothness values. In the next step, two different classification approaches, namely "supervised" and "unsupervised" approaches were applied and their classification performances were compared. Object-based Image Analysis (OBIA) was performed using e-Cognition software.