Results 21 to 30 of about 3,568 (169)

双液滴在交流电场下的变形和相互作用 [PDF]

open access: yes, 2015
双液滴在电场下的变形和相互作用直接决定电融合的成功与否。电场强度、初始液滴间距和电场频率是电融合现象中的关键因素。本文从理论分析和数值计算两个方面研究了交流电场下受限液滴在矩形截面微通道中的电流体力学特性。发现了不同电场强度和初始液滴间距下的五个分区,并通过理论分析确定了各分区间的边界 ...
胡国庆, 陈晓东
core  

From Microstructure to Macroscopic Performance: A Comprehensive Study on Low‐K Oxide‐Doped BNT–LST–NN Ceramics for Energy Storage

open access: yesRare Metals, EarlyView.
ABSTRACT Dielectric ceramics are popular for energy storage materials because of their rapid charge–discharge characteristics, whereas their low energy density and efficiency hinder their miniaturization and integration. In this work, the energy storage performance is significantly enhanced through introducing Al2O3 and TiO2 into the 0.425(Bi0.5Na0.5 ...
Qiansi Zhang   +9 more
wiley   +1 more source

铁电薄膜电疲劳研究进展 [PDF]

open access: yes, 2003
 铁电薄膜在交变电场下发生电疲劳现象是影响其商业应用的主要障碍,也是目前国内外研究的热点。本文从铁电薄膜电疲劳的影响因素 ...
张颖, 程璇, 陈志武
core   +3 more sources

Multiscale Study of a Synergistic System in Carbon‐Coated Multimetal‐Based Selenides Toward Rapid and Highly Stable Sodium Storage

open access: yesRare Metals, EarlyView.
ABSTRACT The development of sodium‐ion batteries (SIBs) is limited by slow charge transfer kinetics and large material volume changes caused by the large radius of Na+. Leveraging the excellent physicochemical properties and unique heterostructures of metal selenides, ultrafine hetero‐CuFeSe2‐CoSe2 nanoparticles are in situ wrapped by ...
Ying Zhu   +5 more
wiley   +1 more source

Study on the behavior of semiflexible polymer translocating into spherical cavity through the nanopore(半柔性大分子链穿越微孔行为的研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2016
采用动态蒙特卡罗模拟方法,模拟半柔性大分子链在电场作用下穿越纳米孔道进入球腔的输运过程.主要研究电场强度及半柔性大分子链的刚性强度对穿孔过程的影响.发现:平均穿孔时间τ随电场强度的增大而减小,τ与链的长度N满足标度关系τ〜Nα,并且电场强度E和弯曲能b对标度指数有显著影响.研究结果表明,当电场强度为中等时,刚性弱和刚性强的大分子的穿孔过程是完全不同的.研究半柔性大分子链穿越微孔的行为,有助于更深入认识生物大分子在生命体内的输运过程.
MAYuansui(马源穗)   +3 more
doaj   +1 more source

Dual Synergistic Effects in a Ce‐Modified MnO2/MnO Heterostructure Enabling Outstanding Acidic Oxygen Evolution

open access: yesRare Metals, EarlyView.
ABSTRACT The development of highly efficient and stable nonprecious metal electrocatalysts for the acidic oxygen evolution reaction (OER) is crucial to advance proton exchange membrane (PEM) water electrolysis. In this work, a dual synergistic strategy was proposed by constructing a Ce‐modified MnO2/MnO heterostructure.
Chuanbin Li   +7 more
wiley   +1 more source

High‐Temperature Stable Narrowband Near‐Infrared Phosphor‐Converted Light‐Emitting Diode Based on Melt‐Grown CsPbCl3: Yb3+ Crystal

open access: yesRare Metals, EarlyView.
ABSTRACT Narrowband near‐infrared (NIR) phosphor‐converted light‐emitting diodes (pc‐LEDs) featuring low full‐width at half maximum (FWHM) and high conversion efficiency are crucial for chemical content evaluation, light therapy, and bioimaging.
Chunshen Li   +4 more
wiley   +1 more source

离子型胶束中分子内扭转电荷转移的盐效应 [PDF]

open access: yes, 1993
分子内扭转电荷转移(TICT)是目前凝聚态光化学领域中的前沿课题之一,这是因为TICT除具有特别的光物理化学性质外,在光合作用原初过程模拟以及非线性光学材料的研究中亦具诱人的前景.胶束被认为是一种膜模拟体系,因此研究胶束中的TICT不仅可在更近层次上模拟叶绿体光合作用的原初过程,而且对于研究其它有序组织体(如LB膜,合成双分子膜以及真正的生物膜等 ...
江云宝, 王秀娟
core   +3 more sources

Thermodynamics‐Driven Phase‐Field Kinetics Simulation for Experiment‐Validated Design of CoNi‐Based Superalloys

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Thermodynamic prediction‐driven phase‐field kinetic simulation, with experimental verification, is utilized to explore the high‐performance cobalt–nickel based (CoNi‐based) superalloys. The roles of aluminum (Al) in microstructural evolution and precipitation kinetics of ordered L12‐γ′ strengthened Co–Ni–xAl superalloys are revealed. The alloy
Kun‐Ning Niu   +6 more
wiley   +1 more source

同轴电缆耦合强电磁脉冲特性分析

open access: yesDianci bileiqi, 2023
针对同轴电缆耦合强电磁脉冲产生的感应过电压对同轴电缆终端设备造成暂时或永久性损害的问题,用理论和试验相结合的方法,采用有界波模拟器模拟2.3/23 ns电场波形,选用SYN-75-3-1-64网无氧铜008M型号的监控线作为同轴电缆耦合对象进行试验,得出以下结论:1)当场间电场强度作为自变量时,随着电场强度的增大同轴电缆耦合到的电压也会变大;2)电场强度一定时,同轴电缆在电场中耦合到的电压会随着耦合长度的增加而变大;3)同轴电缆耦合到的电压还与摆放角度相关,同轴电缆与电场方向的夹角越大 ...
李祥超, 王贤超, 欧阳文, 王兵
doaj  

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