Results 141 to 150 of about 138,969 (272)

Jacobian-Free Newton Krylov Methods for Steady and Transient Neutron Transport Models

Yuanzineng kexue jishu
There is an urgent need to reduce the computational costs and improve the convergence rate for the three-dimensional (3D) high-fidelity pin-by-pin full core simulation.
ZHANG Yangyi, ZHANG Tiancheng, ZHOU Xiafeng
doaj   +1 more source

Leveraging Digital Advanced Manufacturing to Enable Polymer Electrolyte Fuel Cells With Ultrahigh Gravimetric Power Density

Advanced Energy Materials, EarlyView.
This study employs digital advanced manufacturing to develop lightweight, compact porous distributors as alternatives to conventional bipolar plates in PEM fuel cells. A graphene‐coated nickel foam achieves a power density of 1.52 W cm−2, while titanium‐based designs deliver lightweight solutions: an LPBF‐fabricated Gyroid lattice reaches 1.36 W cm−2 ...
Hadi Heidary, Vahid Nasrollahi, Daniel Wilmot, Jacob Bracegirdle‐Morais, Sophie C. Cox, Stefan Dimov, Moataz M. Attallah, Ahmad El‐kharouf, Sara Walker, Robert Steinberger‐Wilckens   +9 more
wiley   +1 more source

Neutron Transport

hamon, 2018
openaire   +2 more sources

Decoding Short‐Range Order in Amorphous Two‐Dimensional Nanosheets for Efficient and Durable Ampere‐Level Seawater Electrolysis: A Case Study of Amorphous Ni(OH)2

Advanced Energy Materials, EarlyView.
This work uncovers the atomic‐scale origins of exceptional HER performance in amorphous Ni(OH)2 nanosheets by combining atom probe tomography, DFT simulations, and operando spectroscopy. We identify distinct short‐range‐order motifs that accelerate water dissociation, proton transport, and hydrogen adsorption. Embedding Pt single atoms further enhances
Xin Geng, Xiaolong Lu, Zhi Mei, Zhenyu Wang, Baptiste Gault   +4 more
wiley   +1 more source

Superprotonic Conduction in Donor Co‐Doped Perovskites

Angewandte Chemie, EarlyView.
Ceramic proton conductors are promising materials for various applications such as fuel cells. Here, we report superprotonic conduction of BaSc0.8Mo0.1W0.1O2.8 created by donor Mo/W co‐doping into BaScO2.5 (e.g., 10−2 S cm−1 at 193 °C). The high proton conductivity is attributed to high carrier concentration and mobility.
Kensei Umeda, Kei Saito, Takashi Honda, Masatomo Yashima   +3 more
wiley   +2 more sources

Beyond Imperfect Match: Silicon/Graphite Hybrid Anodes for High‐Energy–Density Lithium‐Ion Batteries

Advanced Energy Materials, EarlyView.
Silicon/graphite (Si/Gr) hybrid anodes are limited by Si's large volume change and mismatch with Gr. This review offers mechanistic insights into imperfectly matched Si/Gr hybrid anodes, elucidating heterogeneous lithiation behavior and interfacial failure pathways, and thereby informing the design of durable, high‐energy–density lithium‐ion batteries.
Jing Li, Karol Viviana Mejía‐Centeno, Malik Dilshad Khan, Guifang Zeng, Lijie Ci, Andreu Cabot, Qing Sun   +6 more
wiley   +1 more source

Investigation of the Lithium Extraction Mechanism from LiNi0.6Mn0.2Co0.2O2 by Using Operando Neutron Diffraction in an All‐Solid‐State Battery

Advanced Energy Materials, EarlyView.
All‐solid‐state batteries (ASSB) are promising for high‐energy applications. Using a newly designed electrochemical cell, this study demonstrates reversible Li+ insertion/extraction in a thick ASSB and enables operando neutron diffraction. The results reveal structural evolution and H1‐H2 phase coexistence in LiNi0.6Mn0.2Co0.2O2 (NMC622), while ...
Sreelakshmi Anil Kumar, Dhanush Shanbhag, Ove Korjus, Prashanth Sivakumar, Laurence Croguennec, Christian Masquelier, Jean‐Noël Chotard, Emmanuelle Suard   +7 more
wiley   +1 more source

Development and dosimetric evaluation of a freely deformable ⁶Li-based neutron shield for boron neutron capture therapy. [PDF]

Med Phys
Hu N, Kakino R, Sasaki A, Nojiri M, Akita K, Yoshikawa S, Kohigashi Y, Yoshino Y, Takeno S, Aihara T, Takata T, Tanaka H, Nihei K, Ono K.   +13 more
europepmc   +1 more source

Unveiling Localized Heat in Lithium‐Ion Cells for Intelligent Temperature Sensing

Advanced Energy and Sustainability Research, EarlyView.
Heat generation, thermal responses, and intelligent management in batteries. Lithium‐ion batteries (LIBs) power electric vehicles, portable electronics, and grid‐scale storage, yet their safety, performance, and lifetime are constrained by thermal effects.
Yunke Wang, Yuzhu Yuan, Javed Alam, Guangpeng Zhang, José V. Anguita, Zijian Wang, Kai Yang   +6 more
wiley   +1 more source

Particle background characterization and prediction for the NUCLEUS reactor CE ν NS experiment. [PDF]

Eur Phys J C Part Fields
Abele H, Angloher G, Arnold B, Corona MA, Bento A, Bossio E, Buchsteiner F, Burkhart J, Cappella F, Cappelli M, Casali N, Cerulli R, Cruciani A, Del Castello G, Del Gallo Roccagiovine M, Dorer S, Erhart A, Friedl M, Fichtinger S, Ghete VM, Giammei M, Goupy C, Hauff D, Jeanneau F, Jericha E, Kaznacheeva M, Kluck H, Langenkämper A, Lasserre T, Lhuillier D, Mancuso M, Martin R, Mauri B, Mazzolari A, McCallin L, Neyrial H, Nones C, Oberauer L, Ortmann T, Peters L, Petricca F, Potzel W, Pröbst F, Pucci F, Reindl F, Romagnoni M, Rothe J, Schermer N, Schieck J, Schönert S, Schwertner C, Scola L, Soum-Sidikov G, Stodolsky L, Strauss R, Thalmeier R, Tomei C, Vignati M, Vivier M, Wex A.   +59 more
europepmc   +1 more source