Results 71 to 80 of about 5,356 (294)

Developing a new approaching technique of homotopy perturbation method to solve two-group reflected cylindrical reactor

Results in Physics, 2019
The solution of neutron diffusion equation is important to describe the behavior of the neutrons in the nuclear reactors. The essential cylindrical reactor geometry will be studied in this work, where the reactor reflector part is added to the core part ...
Mohammed Shqair
doaj   +1 more source

Ultra‐Radiostable Covalent Conformationally Interlocked Networks Enabling a Universal Radiometal‐Labeling Platform for Cancer Radioembolization

Advanced Science, EarlyView.
Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu, Zhenwen Zhao, Yangjie Wang, Zhigang Liu, Zhijie Liu, Xiaoling Li, Zhichen Mao, Lu Xu, Gan Lin, Gang Liu, Hongjuan Ma   +10 more
wiley   +1 more source

Variational Nodal Method for Solving P1 Equation

Yuanzineng kexue jishu
Starting from the neutron transport equation, the diffusion equation is firstly derived via the P1 approximation, and subsequently the neutron diffusion equation is obtained through the diffusion approximation.
LI Yisong, LI Yunzhao, FAN Yuwen, QIN Junwei, WANG Songzhe
doaj   +1 more source

Numerical analysis of the self-sustaining traveling wave of nuclear fission propagated by epithermal neutrons in uranium dicarbide medium [PDF]

Ядерна фізика та енергетика
This study investigates the self-sustaining traveling wave of nuclear fission in a uranium dicarbide medium by numerically solving a system of partial differential equations.
M. R. Shcherbyna, K. O. Shcherbyna, V. O. Tarasov, S. I. Kosenko, S. A. Chernezhenko   +4 more
doaj   +1 more source

Halide Perovskite: A Rich Source of Thermal Insulator

Advanced Science, EarlyView.
Halide perovskites exhibit ultralow thermal conductivity driven by intrinsic lattice softness and strong anharmonicity, falling below conventional defect‐engineering limits. Weak metavalent bonding, A‐site rattling, and dynamic octahedral tilting drive phonon scattering to the Ioffe–Regel limit, where wave‐like tunneling replaces particle‐like ...
Haolin Ye, Bangzhi Ge, Yuan Yu, Chongjian Zhou   +3 more
wiley   +1 more source

Charge‐Transfer‐Mediated Boron Magneto‐Ionics: Towards Voltage‐Driven Multi‐Ion Transport

Advanced Science, EarlyView.
This study demonstrates voltage‐driven multi‐ion transport in FeBO systems, revealing simultaneous motion of B, Fe, and O ions enabled by charge‐transfer effects. By tuning oxidation states through oxygen incorporation, we achieve a transition from electrostatic‐like to electrochemical magneto‐ionic behavior. The findings establish boron magneto‐ionics,
Zheng Ma, Karim‐Alexandros Kantre, Huan Tan, Aitor Arredondo‐López, Maciej O. Liedke, Javier Herrero‐Martín, Eric Hirschmann, Andreas Wagner, Daniel Mora‐Blanco, Alberto Quintana, Salvador Pané, Eva Pellicer, Josep Nogués, Johan Meersschaut, Jordi Sort, Enric Menéndez   +15 more
wiley   +1 more source

Accelerated solution methods for self-adjoint angular flux neutron transport equations based on scattering matrix decoupling

Nuclear Engineering and Technology
Advanced microreactors exhibit compact geometries, elevated neutron leakage, and pronounced anisotropic scattering. These characteristics necessitate high-fidelity neutron transport methods to accurately resolve core flux distributions.
Duoyu Jiang, Peng Xu, Xinbiao Jiang, Tianliang Hu, Lipeng Wang, Lu Cao, Huaqi Li, Da Li, Lixin Chen   +8 more
doaj   +1 more source

High accurate three-dimensional neutron noise simulator based on GFEM with unstructured hexahedral elements

Nuclear Engineering and Technology, 2019
The purpose of the present study is to develop the 3D static and noise simulator based on Galerkin Finite Element Method (GFEM) using the unstructured hexahedral elements.
Seyed Abolfazl Hosseini
doaj   +1 more source

Metal Battery Anode: Rich in Electrons, Rich in Problems: A Critical Review from Industrial Perspectives

Advanced Science, EarlyView.
Metal‐anode batteries using Li, Na, Mg, and Ca offer exceptionally high energy density, but dendrites, unstable interphases, cracking, and pore formation hinder durability and safety. This review shows how careful electrolyte and interphase design can stabilize these reactive metals.
Jian Pan, Chan Shu, Oscar Tutusaus, Rana Mohtadi   +3 more
wiley   +1 more source

A simple monodimensional model coupling an enthalpy transport equation and a neutron diffusion equation

Applied Mathematics Letters, 2016
The authors construct an analytic solution of a simplified stationary thermohydraulics neutronics model with minimal hypotheses on the absorption and fission cross sections, and on the diffusion coefficient \[ \frac{d}{dz}(\rho u)=0, \] \[ \frac{d}{dz}(\rho u^2+\pi)\rho g, \] \[ \rho u\frac{d}{dz}h=E \sum_f(h)\phi(t,z) \] coupled to the simplified ...
Stéphane Dellacherie, Erell Jamelot, Olivier D. Lafitte   +2 more
openaire   +3 more sources