Results 111 to 120 of about 130,744 (269)

Development of High‐Performance Multilayer Monochromators

Advanced Optical Materials, EarlyView.
Detailed insights into the optical and multilayer design of Double Multilayer Monochromators (DMM) are presented and fully characterized, including key optimization strategies and solutions to fabrication challenges. By integrating in‐house Ion Beam Figuring and a high uniformity multilayer coating process, the developed DMMs achieve high reflectivity,
Wadwan Singhapong, Arindam Majhi, Wai Jue Tan, Vishal Dhamgaye, Riley Shurvinton, Paresh Pradhan, Igor Dolbnya, Lucia Alianelli, Chris Bowen, Alexander J. G. Lunt, Hongchang Wang, Kawal Sawhney   +11 more
wiley   +1 more source

Reevaluation of Neutron Electric Dipole Moment with QCD Sum Rules

, 2012
We study the neutron electric dipole moment in the presence of the CP-violating operators up to the dimension five in terms of the QCD sum rules. It is found that the OPE calculation is robust when exploiting a particular interpolating field for neutron,
I. I. Y. Bigi, Jeong Yong Lee, Junji Hisano, Natsumi Nagata, S. Narison, V. M. Belyaev, V. M. Belyaev, Yasuhiro Shimizu   +7 more
core   +1 more source

Enhanced Scintillation with Uncorrelated TL and OSL Signals in LiCaAlF6:Eu Nanoparticles Enables Unprecedented Multimodal Radiation Dosimetry

Advanced Optical Materials, EarlyView.
The graphical abstract illustrates the coexistence of independent OSL and TL signals, demonstrating that the material preserves TL information even after complete OSL zeroing, enabling a dual dosimetric readout within the same material. Abstract The development of multimodal dosimeters capable of preserving independent luminescent signals is a ...
Nancy Gabriela Chicango Arcos, João Victor Viera Lessa, Hayra do Prado Labaki, Éder José Guidelli   +3 more
wiley   +1 more source

Shape-phase transitions in odd-mass $\gamma$-soft nuclei with mass $A\approx 130$

, 2017
Quantum phase transitions between competing equilibrium shapes of nuclei with an odd number of nucleons are explored using a microscopic framework of nuclear energy density functionals and a particle-boson core coupling model.
Nikšić, T., Nomura, K., Vretenar, D.
core   +1 more source

Navigating the Ethereal Tightrope: The Nanogenerator Manipulates Neurons for Immune Equilibrium

Advanced Science, EarlyView.
This review explores how nanogenerators modulate neuroimmune responses, offering innovative strategies for treating neurological disorders. By interfacing with neural pathways, they enable precise control of immune activity, especially via vagus nerve stimulation.
Jia Du, Rui Deng, Ya Wu, Hong‐Xia Ren, Zong‐Hong Lin, Yang‐Bao Miao   +5 more
wiley   +1 more source

Influence of fine nuclide density model on neutronic characteristics in EBR-II core based on LoongSARAX

He jishu
BackgroundSolving benchmark problems is a significant step in the validation of numerical simulation programs. The Experimental Breeder Reactor II (EBR-II) is a famous benchmark for sodium-cooled fast reactors (SFR), with a complicated core configuration
LI Zikang, LUO Chixu, ZHANG Tengfei
doaj   +1 more source

Non-equilibrium beta processes in superfluid neutron star cores

, 2005
The influence of nucleons superfluidity on the beta relaxation time of degenerate neutron star cores, composed of neutrons, protons and electrons, is investigated.
Amundsen, Andersson, Chesneaux, Fernández, Friman, Gourgoulhon, Gusakov, Haensel, Jézéquel, L. Villain, Lattimer, Lee, Levenfish, Lindblom, Lindblom, P. Haensel, Prix, Reisenegger, Reisenegger, Reisenegger, Urpin, Villain, Yakovlev, Yakovlev, Yakovlev   +24 more
core   +2 more sources

An Advanced High‐Performance Ultrafast Ammonium‐Ion Aqueous Battery Based on Dual‐Metal Redox Open Framework Molecular Magnet

Advanced Science, EarlyView.
The Prussian Blue Analogue molecular magnet KMnFeHCF is demonstrated as a high‐performance cathode for ultra‐fast aqueous ammonium‐ion batteries. A full cell using KMnFeHCF and graphite delivers ~71 mAh g−1 at 1.25 A g−1 and ~51 mAh g−1 at 2.2 A g−1, retaining 50% capacity after 1850 cycles. Its scalability, cycling stability, and low cost offer strong
Nilasha Maiti, Pramod Bhatt, Manoj K Sharma, Sher Singh Meena, Mayuresh D Mukadam, Soumen Samanta   +5 more
wiley   +1 more source

Uncertainty Analysis of Neutron Diffusion Eigenvalue Problem Based on Reduced-order Model

Yuanzineng kexue jishu, 2023
In order to improve the efficiency of core physical uncertainty analysis based on sampling statistics, the proper orthogonal decomposition (POD) and Galerkin projection method were combined to study the application feasibility of reduced-order model ...
In order to improve the efficiency of core physical uncertainty analysis based on sampling statistics, the proper orthogonal decomposition (POD) and Galerkin projection method were combined to study the application feasibility of reduced-order model based on POD-Galerkin method in core physical uncertainty analysis. The two-dimensional two group TWIGL benchmark question was taken as the research object, the key variation characteristics of the core flux distribution were extracted under the finite perturbation of the group constants of each material region, and the full-order neutron diffusion problem was projected on the variation characteristics to establish a reduced-order neutron diffusion model. The reduced-order model was used to replace the full-order model to carry out the uncertainty analysis of the group constants of the material region. The results show that the bias of the mathematical expectation of keff calculated by reduced-order and full-order models is close to 1 pcm. In addition, compared with the calculation time required for uncertainty analysis of full-order model, the analysis time of reduced-order model (including the calculation time of the full-order model required for the construction of reduced-order model) is only 11.48%, which greatly improves the efficiency of uncertainty analysis. The biases of mathematical expectation of keff calculated by reduced-order and full-order models based on Latin hypercube sampling and simple random sampling are less than 8 pcm, and under the same sample size, the bias from the Latin hypercube sampling result is smaller. From the TWIGL benchmark test results, under the same sample size, Latin hypercube sampling method is more recommended for POD-Galerkin reduced-order model.
doaj  

The first dozen years of the history of ITEP Theoretical Physics Laboratory

, 2012
The theoretical investigations at ITEP in the years 1945-1958 are reviewed. There are exposed the most important theoretical results, obtained in the following branches of physics: 1) the theory of nuclear reactors on thermal neutrons; 2) the hydrogen ...
A.A. Abrikosov, A.B. Migdal, A.D. Galanin, A.D. Galanin, A.I. Akhiezer, B. Wentzel, B. Wentzel, B.L. Ioffe, B.L. Ioffe, B.L. Ioffe, B.L. Ioffe, B.L. Ioffe, B.L. Ioffe, B.L. Ioffe, B.L. Ioffe, B.L. Ioffe, C.S. Wu, D.D. Ivanenko, D.D. Osherov, D.D. Osherov, E. Fermi, E.L. Feinberg, G.A. Goncharov, G.V. Skornyakov, I. Pomeranchuk, I.I. Gurevich, I.Ya. Pomeranchuk, I.Ya. Pomeranchuk, I.Ya. Pomeranchuk, I.Ya. Pomeranchuk, I.Ya. Pomeranchuk, I.Ya. Pomeranchuk, I.Ya. Pomeranchuk, I.Ya. Pomeranchuk, I.Ya. Pomeranchuk, I.Ya. Pomeranchuk, I.Ya. Pomeranhuk, J. Schwinger, J.H. Christenson, K.A. Ter-Martirosyan, L.A. Arzimovich, L.B. Okun, L.B. Okun, L.B. Okun, L.B. Okun, L.D. Landau, L.D. Landau, L.D. Landau, L.D. Landau, L.D. Landau, L.D. Landau, L.D. Landau, L.D. Landau, M. Gell-Mann, P.A.M. Dirac, R.E. Marshak, R.P. Feynman, S.F. Edwards, S.S. Gershtein, T.D. Lee, T.D. Lee, V.B. Berestetsky, V.B. Berestetsky, V.B. Berestetsky, V.B. Berestetsky, V.G. Gorshkov, V.G. Gorshkov, V.G. Vaks, V.G. Vaks, V.V. Sudakov, V.Ya. Fainberg, Ya.B. Zeldovich   +71 more
core   +1 more source