Results 101 to 110 of about 103,142 (292)

Multifunctional Metasurfaces for Bridging Terahertz Waves in Free Space and Waveguides

Advanced Physics Research, EarlyView.
A multifunctional terahertz metasurface capable of simultaneous orthogonal polarization conversion and phase modulation is integrated onto a dielectric slab waveguide, thereby enabling efficient free‐space‐to‐guided‐wave coupling. By implementing tailored phase gradients on the metasurface, we demonstrate the formation of a focused spot within the ...
Jinhui Lu, Yushan Chen, Min Zhang, Hong Su, Ling Li, Huawei Liang   +5 more
wiley   +1 more source

Enhanced strategies for cuproptosis‐like death in bacterial infection treatment

BMEMat, EarlyView.
This review summarizes and examines the molecular mechanisms underlying cuproptosis‐like death. Furthermore, multi‐strategy efficacy enhancement and potential enhancement approaches are analyzed. Abstract Copper, a classical antibacterial metal, has long been of interest and widely used in medical and public health applications.
Wenqi Wang, Bolong Xu, Ruiyuan Zhu, Hengshuo Gui, Tian Xia, Shaokai Liu, Huiyu Liu, Xianwen Wang   +7 more
wiley   +1 more source

A Substrate-Dissipating (SD) Mechanism for a Ruggedness-Improved SOI LDMOS Device

IEEE Journal of the Electron Devices Society, 2018
An SOI LDMOS device with improved ruggedness under unclamped inductive switching (UIS) is described based on the substrate-dissipating (SD) mechanism.
Bing Wang, Zhigang Wang, James B. Kuo
doaj   +1 more source

On the relativistic large-angle electron collision operator for runaway avalanches in plasmas

, 2017
Large-angle Coulomb collisions lead to an avalanching generation of runaway electrons in a plasma. We present the first fully conservative large-angle collision operator, derived from the relativistic Boltzmann operator.
Embréus, Ola, Fülöp, Tünde, Stahl, Adam   +2 more
core   +1 more source

Vegetation effects on avalanche dynamics

, 2015
Avalanches endanger people, destroy their property and frequently bury traffic routes in deep snow. Dense forest is an effective, economic and ecologic avalanche mitigation measure. Vegetation in the release area and in the avalanche path can prevent the gliding motion of snow, affects the avalanche flow dynamics and leads to deceleration and runout ...
openaire   +2 more sources

A Systemic Model for Understanding Business Interactions With Biodiversity and Ecosystems

Business Strategy and the Environment, EarlyView.
ABSTRACT Biodiversity loss and ecosystem degradation represent critical threats to human well‐being and economic resilience, challenging businesses to understand and manage their interdependence with natural systems. This study develops a systemic framework—the BioModel—that elucidates the reciprocal relationship between businesses, biodiversity, and ...
Lino Cinquini, Giacomo Pigatto, Andrea Tenucci   +2 more
wiley   +1 more source

Dynamic fragmentation characteristics of rock avalanche with tectonic joints

Zhongguo dizhi zaihai yu fangzhi xuebao
In recent years, rock avalanche disasters have been occurring frequently in southwest China, which seriously affect the regional ecological environment and human activities.
Jiayuan ZANG, Wenbin CHANG, Aiguo XING, Yaoming ZHANG, Chunling WANG, Kaiping JIN, Lingkai SHEN, Wengang YU   +7 more
doaj   +1 more source

A theoretical comparison of the breakdown behavior of In0.52Al0.48As and InP near-infrared single-photon avalanche photodiodes

, 2009
We study the breakdown characteristics and timing statistics of InP and In0.52Al0.48As single-photon avalanche photodiodes (SPADs) with avalanche widths ranging from 0.2 to 1.0 mu m at room temperature using a random ionization path-length model.
David, J.P.R., Dimler, S.J., Goh, Y.L., Mun, S.C.L.T., Ng, J.S., Tan, C.H., Tan, L.J.J.   +6 more
core   +1 more source

Carbon‐14 Perovskite Betavoltaics Reach Record 10.79% Efficiency

Carbon Energy, EarlyView.
A perovskite‐based betavoltaic cell incorporating carbon‐14 nanoparticles and formamidinium lead iodide achieves a record energy conversion efficiency of 10.79%. The device design enhances charge generation through an electron avalanche multiplication mechanism.
Hong Soo Kim, Ryan Rhee, Junho Lee, Muhammad Bilal Naseem, Jung Hwan Lee, Jong Hyeok Park, Su‐Il In   +6 more
wiley   +1 more source

Uncovering avalanche sources via acceleration measurements

Nature Communications
Avalanche sources describe rapid and local events that govern deformation processes in various materials. The fundamental differences between an avalanche source and its associated measured acoustic emission (AE) signal are encoded in the acoustic ...
Emil Bronstein, Eilon Faran, Ronen Talmon, Doron Shilo   +3 more
doaj   +1 more source