Article
Chemistry, Multidisciplinary
Meng Shao, Ningxiang Wu, Tianming Chen, Xu Han, Yu Shen, Weina Zhang, Bing Zheng, Sheng Li, Fengwei Huo
Summary: Compared with solid alkali metal anodes (Li, Na, K), liquid metal anodes (LMAs) have unique advantages such as self-healing property and no dendrites, enabling high-energy batteries. Among LMAs, liquid Na-K alloy anode has received attention due to its high theoretical capacity, low redox potential, and formation at room temperature. However, utilizing liquid Na-K alloy as an electrode is challenging, especially at room temperature with high surface tension. In this study, an amorphous hollow carbon film (AHCF) consisting of hollow spheres with significant surface defects was designed to quickly infiltrate Na-K liquid alloy at room temperature, forming a composite electrode (Na-K@AHCF). The Na-K@AHCF symmetric cell exhibited a cycle lifespan of up to 400 hours at 0.1 mA/cm2 and demonstrated stable stripping/deposition even at 5 mA/cm2. When combined with sulfurized polyacrylonitrile (SPAN) cathode material, the resulting K-S full cell showed good cycle stability and rate performance.
CHINESE CHEMICAL LETTERS
(2023)
Article
Mathematics, Applied
Philip Rosenau, Alexander Oron
Summary: We study a class of sublinear Gardner equations that exhibit compactons with finite span and richer morphology compared to unidirectional KdV-like equations. The multi-dimensional extension of the equations reveals a spectrum of multi-nodal compactons.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2022)
Article
Mathematics, Interdisciplinary Applications
Ruben Garralon-Lopez, Francisco Rus, Francisco R. Villatoro
Summary: This paper introduces the Rosenau-Hyman K(p, p) equation with compactons and discusses the issue of complex-valued solution in compacton collisions when p is non-integer. To address this problem, the nonlinearity up can be replaced by |u|p-1 u, ensuring that the solution is always real-valued, resulting in the absolute K(p, p) equation, |K|(p, p). The first numerical simulations of collisions between compactons and anticompactons for the |K|(p, p) equation are presented. The collisions remain robust even with very small artificial viscosity, highlighting the preference of the |K|(p, p) equation over the K(p, p) equation in physical applications.
CHAOS SOLITONS & FRACTALS
(2023)
Article
Physics, Multidisciplinary
F. C. E. Lima, A. R. P. Moreira, C. A. S. Almeida
Summary: This study investigates the influence of matter field and gauge field on the metric functions of the AdS(3) spacetime in the Maxwell-Higgs model. The appearance of black hole solutions is noticed with the presence of a matter field with a solitonic profile that can adjust the field variable. The compactification of the matter field affects the metric functions while not changing the structure of the magnetic black hole vortex horizon.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Physics, Fluids & Plasmas
Alexander J. H. Houston, Gareth P. Alexander
Summary: In this study, we develop a description of defect loops in three-dimensional active nematics based on a multipole expansion. We find that the loop's geometric type leads to a self-dynamics dependent on the dipole and quadrupole terms. We also identify the force-and torque-free geometries of twist loops and determine the hydrodynamics of the Stokesian flows created by defect loops.
Article
Mathematics, Applied
Dmitry E. Pelinovsky, Alexey V. Slunyaev, Anna V. Kokorina, Efim N. Pelinovsky
Summary: Compactons are localized bell-shaped waves that propagate in the same direction as waves of the linear KdV equation. Their amplitude and width are inversely proportional to their speed. Through numerical and analytical methods, the energetic stability and dynamics of compactons have been studied, including their interactions with other waves.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2021)
Article
Physics, Applied
Shota Nunomura, Hiroyuki Ota, Toshifumi Irisawa, Kazuhiko Endo, Yukinori Morita
Summary: The defect generation and recovery in a high-k HfO2/SiO2/Si stack for MOSFETs were studied at each fabrication step. The measurements of carrier lifetime indicated that defects were generated during the formation of the HfO2/SiO2 stack, as well as post-deposition annealing (PDA) and O-2 plasma treatment, while they were mostly recovered by forming gas annealing (FGA).
APPLIED PHYSICS EXPRESS
(2023)
Article
Engineering, Environmental
Yeon Jun Choi, Geon Woo Lee, Young Hwan Kim, Hyun-Kyung Kim, Kwang-Bum Kim
Summary: Heteroatom-doping is an effective strategy for enhancing the charge storage of graphene. By decoupling the effects of N heteroatoms and structural defects, it is found that the capacity enhancement of N-doped reduced graphene oxide (N-RGO) is mainly due to the N heteroatoms, while the capacity decrease of N-doped nanoperforated graphene (N-NPG) is caused by the elimination of carbon radicals and oxygen functional groups at the edges.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Mathematics, Applied
Ruben Garralon-Lopez, Francisco Rus, Francisco R. Villatoro
Summary: Compactons are robust solitary waves with compact support that retain their shape after mutual interactions. This study examines asymmetric compacton-anticompacton collisions for integer p > 2 and observes robust collisions for odd p, while blow-up occurs for even p unless a threshold condition is met. These results highlight the importance of adding viscosity to the K(p, p) equation for the robustness of compacton and anticompacton interactions.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2023)
Article
Physiology
Samuel L. Svendsen, Simon Kornvig, Peder Berg, Iben S. Jensen, Isabela B. B. A. de Araujo, Casper K. Larsen, Jens Leipziger, Mads Sorensen
Summary: K+-induced diuresis involves desensitization of the collecting duct to AVP.
Article
Materials Science, Multidisciplinary
Zhu-You Liu, Cai-Xin Zhang, Ruyue Cao, Xuefen Cai, Hui-Xiong Deng
Summary: In this study, the transition energies of possible defects in Hf1-xZrxO2 alloy were investigated using first-principles calculations. The results indicate that hydrogen interstitial is more likely to be responsible for electron trapping in Hf1-xZrxO2 dielectric, contrary to previous studies suggesting oxygen vacancy as the main defect.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Xiaolei Ma, Fan Feng, Xiaoxin Zhang, Ting Wang, Xiang Liu, Wei Lv, Shaoting Lang, Changchun Ge, Qingzhi Yan
Summary: The large-scale warm-rolled pure tungsten (PW) and hot-rolled potassium-doped tungsten (W-K) plates were prepared to meet the demands of the ITER in engineering application. The results show that the combined irradiation of high-energy iron ion, deuterium, and helium plasma can significantly reduce the thermal shock resistance of PW and W-K. In addition, W-K exhibits better thermal shock resistance than PW under the same conditions.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Physics, Fluids & Plasmas
K. S. Krishnamurthy, D. S. Shankar Rao, Santosh Y. Khatavi, Channabasaveshwar V. Yelamaggad
Summary: This study examines the structural features of twist-bend nematic (NTB) drops made of the mesogen CB7CB mixed with a long chain amphiphile in isotropic and nematic environments. In the isotropic phase, the drops develop from radial to off-centered structures with splay and bend distortions. In the nematic phase, NTB droplets appear as radial hedgehogs and attain stability through their association with hyperbolic hedgehogs. Significantly, the dipole-quadrupole transformation is reversible but hysteretic with respect to drop size.
Article
Chemistry, Multidisciplinary
Pedro Barusco, Xavier Granados, Lavinia Saltarelli, Jean-Hughes Fournier-Lupien, Christian Lacroix, Haifa Ben Saad, Frederic Sirois, Valentina Roxana Vlad, Albert Calleja, Veit Grosse, Teresa Puig, Xavier Obradors
Summary: The primary benefit of a metallic stabilization/shunt in high temperature superconductor coated conductors is to prevent joule heating damage by providing an alternative path for the current flow during the normal state transition. The current flow diverter is a conductor architecture concept that increases the conductor's robustness against a hot-spot regime. This study investigates a practical manufacturing route for incorporating the current flow diverter architecture in a reel-to-reel system.
Article
Nanoscience & Nanotechnology
Chun-Yen Lai, Chia-Fei Liu, Tzu-Ling Lin, Mei-Yu Chen, Yu-Cheng Huang, Her-Hsiung Huang, Chung-Li Dong, Ding-Yeong Wang, Ping-Hung Yeh, Wen-Wei Wu
Summary: This study explores the potential of metal oxide nanofibers, specifically polycrystalline SnO2 nanofibers, to convert photoenergy into bio-energy for bio-material applications. The controllable surface morphology and oxygen defect structure were found to play a key role in modulating cell-material interactions and the photoelectric effect.
ACS APPLIED MATERIALS & INTERFACES
(2023)