Results 51 to 60 of about 5,942 (275)

Kinematic Mapping in Semi-Euclidean 4-Space

Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2014
We study the some algebraic properties of matrix associated to Hamilton operators is defined for semi-quaternions. The kinematic mapping corresponding to these operators in semi-Euclidean 4-space is same as the kinematic mapping of Blaschke and Grünwald ...
Mehdi JAFARI
doaj  

Spin Hamilton operators, symmetry breaking, energy level crossing and entanglement [PDF]

, 2012
© Willi-Hans Steeb, Yorick Hardy and Jacqueline de Greef, 2012 Available online: http://arxiv.org/abs/1110.4204v2We study finite-dimensional product Hilbert spaces, coupled spin systems, entanglement and energy level crossing.
Hardy, Yorick, Yorick Hardy, Jacqueline De Greef, De Greef, Jacqueline, Willi-Hans Steeb, Steeb, Willi-Hans   +5 more
core  

A general convergence result for viscosity solutions of Hamilton-Jacobi equations and non-linear semigroups

, 2022
We extend the Barles-Perthame procedure [4] (see also [22]) of semi-relaxed limits of viscosity solutions of Hamilton-Jacobi equations of the type f−λHf=h to the context of non-compact spaces.
Kraaij, R.C. (author)
core   +1 more source

Unveiling Exsolution‐Induced Giant Electronic and Magnetic Property Changes in Non‐Stoichiometric Titanate Perovskite Thin Films

Advanced Materials, EarlyView.
A giant insulator to metal transition and emergent superparamagnetism are revealed by nanoparticle exsolution in non‐stoichiometric titanate perovskite thin films. By combining transport, synchrotron spectroscopy, and first‐principles calculations, this work reveals how defect reconfiguration and lattice reconstruction fundamentally reshape electronic ...
Sungil Kim, June Ho Lee, Yaolong Xing, Dongchang Kim, Haeseong Jeong, Mongjun Jeong, Manuel Valvidares, Stuart S. P. Parkin, Sang Ho Oh, Donghwa Lee, Hyojin Yoon, Hyeon Han   +11 more
wiley   +1 more source

Advances in Magnesium‐Based Thermoelectrics: A Critical Review

Advanced Materials, EarlyView.
Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang, Li Zhang, Nan‐Hai Li, Yan‐Ling Yang, Xiao‐Lei Shi, Zhi‐Gang Chen   +5 more
wiley   +1 more source

Complete CP eigen-bases of mesonic chiral Lagrangian up to p 8-order

Journal of High Energy Physics
Chiral perturbation theory systematically describes the low energy dynamics of meson and baryons using nonlinear Nambu-Goldstone fields. Using the Young tensor technique, we construct the pure mesonic effective operators up to p 8-order, one-to-one ...
Xuan-He Li, Hao Sun, Feng-Jie Tang, Jiang-Hao Yu   +3 more
doaj   +1 more source

THE CONCEPT OF MODERN APPROACHES TO THE LEVELS OF DESCRIBING THE AGING PROCESSES OF STRUCTURALLY AND FUNCTIONALLY COMPLEX CRITICAL SYSTEMS WITH LONG PERIODS OF ACTIVE EXISTENCE

Надежность и качество сложных систем, 2021
Background. Traditional methods for assessing and analyzing the indicators of the durability of equipment of complex systems are based on the description of systems in time at the level of trajectories of behavior, and are idealizations, since they do ...
V.A. Ostreykovskiy, S.A. Lysenkova
doaj   +1 more source

Engineering CO2 Reduction Pathways via Alloy‐Support Interactions in Li‐CO2 Batteries

Advanced Materials, EarlyView.
Alloy‐support interactions in RuCu/NC induce interfacial charge redistribution and shift d‐band centers, steering CO2 reduction from Li2CO3 to metastable Li2C2O4. This pathway engineering lowers the rate‐determining barrier and suppresses carbonate formation, enabling high discharge voltage (3.23 V) in Li‐CO2 batteries with reduced overpotential (0.50 ...
Liang Sun, Xindan Zhang, Guang Feng, Guoqiang Zhao, Bernt Johannessen, Guanjie Li, Shilin Zhang, Hongge Pan, Zaiping Guo   +8 more
wiley   +1 more source

HJRNO: Hamilton-Jacobi Reachability with Neural Operators

CoRR
Ensuring the safety of autonomous systems under uncertainty is a critical challenge. Hamilton-Jacobi reachability (HJR) analysis is a widely used method for guaranteeing safety under worst-case disturbances. In this work, we propose HJRNO, a neural operator-based framework for solving backward reachable tubes (BRTs) efficiently and accurately.
Yankai Li, Mo Chen 0001
openaire   +2 more sources

Flexible Chemiresistive Chitosan‐Glycerol Sensors on Laser‐Induced Graphene Electrodes for Room‐Temperature Ammonia Detection

Advanced Materials Technologies, EarlyView.
Flexible Chitosan‐glycerol sensor integrated with porous laser‐induced graphene (LIG) electrodes enable room‐temperature chemiresistive detection of ammonia (NH3) and proof‐of‐concept detection of fish spoilage. ABSTRACT We report a metal‐free sensor platform combining laser induced graphene (LIG) electrodes with drop‐deposited, glycerol‐plasticized ...
Mintesinot Tamiru Mengistu, Richard Murray, Cara‐Lena Nies, Cathal Larrigy, Martina Piletti, Jahidul Islam, Daniela Iacopino, Eileen Hurley, Michael Nolan, Aidan J. Quinn   +9 more
wiley   +1 more source