Results 131 to 140 of about 19,251 (262)
Engineering Angular Dispersion via Hybrid Local–Nonlocal Metasurfaces
A single‐layer hybrid local–nonlocal silicon metasurface is experimentally demonstrated as a polarization‐insensitive angular filter in transmission. By combining local nanopillar response, lattice‐mediated interactions near the Rayleigh anomaly, and diffraction‐assisted substrate coupling, the platform maintains high transmission within a ±15° $\pm ...
Shany Z. Cohen +5 more
wiley +1 more source
ANSI/ASHRAE 110-95 protocol is a widely acceptable method to assess the performance of laboratory hoods. In this test, sulfur hexafluoride (SF6) is applied as a tracer gas to quantitatively evaluate the performance of laboratory hoods.
MOHAMMAD JAVAD JAFARI +3 more
doaj
Anthropogenic Carbon Isotope Signals in North Atlantic Water Masses at 48°N
Abstract Deep‐water masses are formed in the North‐Atlantic, making studies of δ13C of dissolved CO2 in this region key to monitor and understand the spreading of anthropogenic carbon into the ocean interior. The objective of this study is to quantify the Suess effect (SE) in North Atlantic water masses using sulfur hexafluoride (SF6) as the ...
E. Bavoux +5 more
wiley +1 more source
对SF6气体分解产物的组成及其体积分数进行测定和分析研究与SF6电气设备安全运行密切相关。笔者建立了SF6电气设备模拟放电试验方法,使用气相色谱法、离子色谱法及检测管法对不同模拟放电条件下SF6气体分解产物的生成过程、相对体积分数关系等方面进行研究,寻找表征不同放电故障类型的特征气体,从而得到SF6气体分解产物的变化情况与SF6电气设备故障之间的内在联系。该项研究提出对SF6气体分解产物定量检测以评判电气设备内部状态的理论与方法,对实现SF6电气设备由于放电引起的突发性故障的早期诊断和预测有着重大意义。
苗玉龙, 姚强, 邱妮, 张继菊
doaj
Brillouin Zone Folding‐Driven Topological Band Flips Based on BICs via Twisted Photonic Crystals
Brillouin zone folding (BZF)‐driven topological band flips are demonstrated via twisted photonic crystals (PhCs) incorporating bound states in the continuum (BICs). Twist perturbation generates three new bands, each linked to either a BIC or a guided‐mode resonance (GMR).
Guanhua Yang +4 more
wiley +1 more source
Viscosity of SF6+N2 and SF6+He gaseous mixtures.
TANAKA, YOSHIYUKI +3 more
openaire +2 more sources
High‐Performance, Paper‐Based Microelectronics via a Micromodular Fabrication Process
This study demonstrates high‐performance silicon micromodular transistors on cellulose nanomaterial‐coated paper, with interconnects formed via e‐jet printing. Transistors exhibit excellent electrical properties and maintain performance under applied strain.
Rebecca K. Banner +9 more
wiley +1 more source
高压SF6断路器是电网中的重要元件,它对电网运行的可靠性有着重要影响。笔者以高压SF6断路器为分析目标,讨论了高压SF6断路器可靠性研究的目的,并论述了可靠性研究的发展现状。结合高压SF6断路器的技术特点,讨论了高压SF6断路器进行可靠性研究的特点;针对高压SF6断路器的开合、绝缘、载流、静态结构、机构及传动、辅助和控制回路等6个功能模块,分析了对其进行可靠性研究的难点;最后,总结了对高压SF6断路器密封元件进行可靠性评估的可能手段和方法。
魏泉 +6 more
doaj
Sustained growth of sulfur hexafluoride emissions in China inferred from atmospheric observations
Sulfur hexafluoride (SF6) is a potent greenhouse gas. Here we use long-term atmospheric observations to determine SF6 emissions from China between 2011 and 2021, which are used to evaluate the Chinese national SF6 emission inventory and to better ...
Minde An +12 more
doaj +1 more source
SF6 is one of the most potent greenhouse gases due to its remarkably high global warming potential which is 23900 times larger than that of CO2 and long lifetime in the atmosphere.
??????, ?????????
core

