Results 131 to 140 of about 906,607 (253)
The Elusive [B(ReO4)4]− Anion in the Non‐Centrosymmetric Crystal Structure of K[B(ReO4)4]
Angewandte Chemie International Edition, EarlyView.Colorless crystals of K[B(ReO4)4] have been obtained from the reaction of KReO4 with B2O3 in a melt of Re2O7. According to single‐crystal structure analysis the compound has an anion which is built up by four (ReO4)‐tetrahedra coordinated to a central boron atom. Furthermore, the compound has been investigated by Raman spectroscopy and DFT calculations
Stefan Sutorius +5 more
wiley +1 more source
Recent Advances in Riemannian and Lorentzian Geometries
, 2003 This volume covers the proceedings of a special session “Recent advances in Riemannian and Lorentzian geometries” of the annual meeting of American Mathematical Society, held at Baltimore, January 15-18, 2003.
Sharma, Ramesh, Duggal, Krishan L.
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Transverse Geometry of Lorentzian foliations with applications to Lorentzian orbifolds
We prove a transverse diameter theorem in the context of Lorentzian foliations, which can be interpreted as a Hawking--Penrose-type singularity theorem for timelike geodesics transverse to the foliation.
Martins, Henrique A. Puel +2 more
core
Advanced Physics Research, EarlyView.We computationally investigate the mechanical, electronic, and optical properties of strained GeSn microdisks on silicon substrates. By combining photo‐elasticity, strain‐dependent band‐structure calculations, and optical mode analysis, we study how strain distribution, structural configuration, and temperature affect the electronic band structure and ...
Jon Schlipf +5 more
wiley +1 more source
Two‐Dimensional van der Waals Antiferromagnets: Fabrication, Probes, Control, and Applications
Advanced Physics Research, EarlyView.Two‐dimensional van der Waals antiferromagnets are emerging as versatile platforms for spintronic, optoelectronic, and quantum devices. This review summarizes recent progress in their fabrication, magnetic characterization, fields, interfacial engineering, chemical modification, and representative applications.
Huangyu Wu +10 more
wiley +1 more source
Advanced Physics Research, EarlyView.This study explores the use of single‐walled carbon nanotubes (SWCNTs) for thermoelectric (TE) applications to convert waste heat into electricity. By examining two SWCNT types with varying purity, structure, and thickness, it assesses how different solvents used in buckypaper fabrication affect their TE properties.
Marén Gültner +6 more
wiley +1 more source
A state sum for four-dimensional Lorentzian quantum geometry in terms of edge vectors [PDF]
We present the construction of a new state sum model for $4d$ Lorentzian quantum gravity based on the description of quantum simplicial geometry in terms of edge vectors.
Dekhil, Roukaya +2 more
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BMEMat, EarlyView.The challenges of bioprosthetic heart valves (BHV) with respect to calcification, infection, and poor durability are tackled by surface engineering of hyperbranched poly‐L‐lysine (HBPL), providing a translational solution to improve long‐term valve performance.
Pai Peng +7 more
wiley +1 more source
MXenes as a Versatile Platform for High‐Energy‐Density Asymmetric Supercapacitors
Carbon Energy, EarlyView.MXenes with high conductivity and tunable surface chemistry are reviewed as advanced electrodes for asymmetric supercapacitors. MAX‐phase synthesis, surface and interlayer engineering, defect modulation, and composite designs are discussed, highlighting enhanced ion transport, pseudocapacitance, energy density, cycling stability, and sustainable routes
Seul‐Yi Lee +3 more
wiley +1 more source
A Possibility-Space Derivation of a Planck-Softened Correlation Kernel for Holographic Entropy Deficit. [PDF]
Entropy (Basel)Adair A.
europepmc +1 more source