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J Dobaczewski - One of the best experts on this subject based on the ideXlab platform.
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coordinate space solution of the skyrme hartree fock bogolyubov equations within spherical symmetry the program hfbrad v1 00
Computer Physics Communications, 2005Co-Authors: K Bennaceur, J DobaczewskiAbstract:Abstract We describe the first version (v1.00) of the code hfbrad which solves the Skyrme–Hartree–Fock or Skyrme–Hartree–Fock–Bogolyubov equations in the coordinate representation with spherical symmetry. A realistic representation of the quasiparticle wave functions on the space lattice allows calculations to be performed up to the particle drip lines. Zero-range density-dependent interactions are used in the pairing channel. The pairing energy is calculated by either using a cut-off energy in the quasiparticle spectrum or the regularization scheme proposed by A. Bulgac and Y. Yu. Program summary Title of the program: hfbrad (v1.00) Catalogue indentifier:ADVM Program summary URL: http://cpc.cs.qub.ac.uk/summaries/ADVM Program obtainable from: CPC Program Library, Queen's University of Belfast, N. Ireland Licensing provisions: none Computers on which the program has been tested: Pentium-III, Pentium-IV Operating systems: LINUX, Windows Programming language used:FORTRAN-95 Memory required to execute with typical data: 30 MBytes No. of bits in a word: The code is written with a type real and uses the intrinsic function selected_real_kind at the beginning of the code to ask for at least 12 significant digits. This can be easily modified by asking for more significant digits if the architecture of the computer can handle it. No. of processors used:1 Has the code been vectorized?:No No. of bytes in distributed program, including test data, etc.: 40 308 No. of lines in distributed program, including test data, etc.: 5370 Distribution format:tar.gz Nature of physical problem: For a self-consistent description of Nuclear pair correlations, both the particle–hole (field) and particle–particle (pairing) channels of the Nuclear mean field must be treated within a common approach, which is the Hartree–Fock–Bogolyubov theory. By expressing these fields in spatial coordinates one can obtain the best possible solutions of the problem; however, without assuming specific symmetries the numerical task is often too difficult. This is not the case when the spherical symmetry is assumed, because then the one-dimensional differential equations can be solved very efficiently. Although the spherically symmetric solutions are physically meaningful only for magic and semi-magic nuclei, the possibility of obtaining them within tens of seconds of the CPU makes them a valuable element for studying nuclei across the Nuclear chart, including those near or at the drip lines. Method of solution: The program determines the two-component Hartree–Fock–Bogolyubov quasiparticle wave functions on the lattice of equidistant points in the radial coordinate. This is done by solving the eigensystem of two second-order differential equations using the Numerov method. A standard iterative procedure is then used to find self-consistent solutions for the Nuclear Product wave functions and densities. Restrictions on the complexity of the problem: The main restriction is related to the assumed spherical symmetry. Typical running time: One Hartree–Fock iteration takes about 0.4 s for a medium mass nucleus, convergence is achieved in about 40 s. Unusual features of the program: none
I B Savvatimova - One of the best experts on this subject based on the ideXlab platform.
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Nuclear Product ratio for glow discharge in deuterium
Physics Letters A, 1992Co-Authors: A B Karabut, Ya R Kucherov, I B SavvatimovaAbstract:Abstract New results for glow discharge in deuterium calorimetry are presented. In separate experiments a heat output five times exceeding the input electric power was observed. The result for the charged particle spectrum measurement is presented. Charged particles with energies up to 18 MeV and an average energy of 2–4 MeV were seen. Beams of gamma-rays with energies of about 200 keV and a characteristic X-ray radiation were registered. The summed energy of the registered Products is three orders short of the values needed to explain the calorimetric results.
Zhitao Xu - One of the best experts on this subject based on the ideXlab platform.
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Nuclear Product Design Knowledge System Based on FMEA Method in New Product Development
Arabian Journal for Science and Engineering, 2013Co-Authors: Zhenyong Wu, Wenyan Song, Xinguo Ming, Zhitao XuAbstract:Nuclear power Product manufactories are continually striving to reduce both the amount and the cost of Product maintenance, whilst at the same time ensuring that the Nuclear power Product safety, reliability, and integrity are not compromised. The demand for high-quality and low-cost Products with short development time, especially for complex Nuclear power Products, e.g., Nuclear power reheat valve, has forced the Product development team to focus on the various effective Product development strategies. In this paper, authors explore the applicability of knowledge-based technologies to competitive new reheat valve Product design and development. Based on the proposed approach and methodologies, a web-based and service-oriented system supporting new reheat valve Product design has been developed, which can assist inexperienced users to perform failure modes and effects analysis (FMEA) analysis,and most important, to get knowledge stored in database for future quality and reliability improvement. The system will help to enhance new reheat valve Product stability at the stage of Product conceptual design. A framework of system based on FMEA approach for new reheat valve Product design is proposed in this paper.
Peter Ohare - One of the best experts on this subject based on the ideXlab platform.
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gsk 3 mediated phosphorylation couples er golgi transport and Nuclear stabilization of the creb h transcription factor to mediate apolipoprotein secretion
Molecular Biology of the Cell, 2017Co-Authors: Sonia Barbosa, Suzanne Carreira, Peter OhareAbstract:: CREB-H, an ER-anchored transcription factor, plays a key role in regulating secretion in metabolic pathways, particularly triglyceride homeostasis. It controls the Production both of secretory pathway components and cargoes, including apolipoproteins ApoA-IV and ApoC-II, contributing to VLDL/HDL distribution and lipolysis. The key mechanism controlling CREB-H activity involves its ER retention and forward transport to the Golgi, where it is cleaved by Golgi-resident proteases, releasing the N-terminal Product, which traffics to the nucleus to effect transcriptional responses. Here we show that a serine-rich motif termed the P-motif, located in the N-terminus between serines 73 and 90, controls release of the precursor transmembrane form from the ER and its forward transport to the Golgi. This motif is subject to GSK-3 phosphorylation, promoting ER retention, while mutation of target serines and drug inhibition of GSK-3 activity coordinately induce both forward transport of the precursor and cleavage, resulting in Nuclear import. We previously showed that for the Nuclear Product, the P-motif is subject to multiple phosphorylations, which regulate stability by targeting the protein to the SCFFbw1a E3 ubiquitin ligase. Thus phosphorylation at the P-motif provides integrated control of CREB-H function, coupling intercompartmental transport in the cytoplasm with stabilization of the active form in the nucleus.
Lee D Hansen - One of the best experts on this subject based on the ideXlab platform.
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examination of claims of miles et al in pons fleischmann type cold fusion experiments
The Journal of Physical Chemistry, 1995Co-Authors: Steven E Jones, Lee D HansenAbstract:In cold fusion experiments conducted at the Naval Research Laboratory in China Lake, M. H. Miles and co-workers claim to have produced excess heat correlated with helium-4 Production, X-rays, and Geiger-counter excitation. However, scrutiny of the claims shows that unreliable calorimetric and Nuclear-Product detection methods were used. Moreover, inconsistencies and errors are found in the data and data analysis. The juxtaposition of several poor techniques and inconsistent data does not make a compelling case for cold fusion. We conclude that the evidence for cold fusion from these efforts is far from compelling. 20 refs., 2 figs., 2 tabs.
