Results 51 to 60 of about 15,664 (213)
不同含水率下电—热耦合应力对油纸绝缘界面小分子气体扩散特性的影响机制
Gaoya dianqi, 2023 油纸绝缘在实际运行过程中，受到电—热耦合应力作用，其内部产生的气体以气泡的形式从界面处析出，造成局部放电甚至绝缘击穿，危害变压器的运行安全。文中通过搭建油纸绝缘电—热耦合实验平台，分别对不同温度、不同电场强度以及不同含水率条件下的油纸绝缘模型进行实验，实验结果表明，随着电场强度以及含水率的提高，气泡析出的起始温度逐渐下降。由此进一步建立油纸绝缘界面分子动力学仿真模型，以绝缘纸老化裂解过程中产生较多的CO2为例，对其在油纸绝缘界面处的聚集状态、相对浓度，扩散系数，氢键作用以及自由体积分数进行了研究 ...
李云鹏 +4 more
doaj
, 2012 二甲基亚砜被广泛应用于生物、化学和药学领域,这些应用大多与其增加生物膜的通透性、促进活性分子跨膜传输的作用密切相关。本文对二甲基亚砜增加生物膜通透性的理论及实验研究做简要综述 ...
戚智, 方志聪
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Effect of Particle Agglomeration on Thermal Conductivity of Solar Salt Nanofluids [PDF]
ObjectivesNanofluid technology is an important means to improve the thermal conductivity of energy storage materials in solar thermal power plants. However, the nanoparticles in actual molten salt based nanofluid usually aggregate and settle down, which ...
CUI Liu +4 more
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Plasma‐Boosted Bi2Mn4O10 Electrocatalysis Enables Real‐Time On‐Board Monitoring of CO2 in Exhaust
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Real‐time monitoring of CO2 concentration in automobile exhaust is critical for effective carbon emission reduction. However, the inherently inert nature of CO2 poses a significant challenge for achieving accurate and efficient detection in the exhaust automobile environment.
Aining Jiang +6 more
wiley +1 more source
Dianci bileiqi, 2021 分析模拟盘形悬式瓷绝缘子串风偏运行时承受的应力大小可预防风偏闪络事故的发生。对此采用ANSYS Fluent计算流体动力学（CFD）软件,建立了基于RNG k-ε湍流模型的绝缘子串-导线三维模型并进行分析。首先计算出刚体与多刚体模型在多种风速下受到的von-Mises等效应力情况,并将两者与受力公式的计算结果进行对比分析。为进一步研究绝缘子串上不同位置的受力,又模拟并比较了多刚体模型在不同风速时相应位置的受力大小。结果表明,在风速大于30 m/s时,多刚体模型由于考虑风偏过程中各绝缘子之间的定点转动现象,
孟婧, 陈炯, 毕祥宜
doaj
Mesoscopic Modeling and Fundamental Understanding of Peptide Adsorption [PDF]
, 2016 蛋白质在金属反应器中结垢是工业生产中亟需解决的难题。目前，蛋白质吸附过程的计算机模拟主要集中于宏观尺度与分子尺度：宏观尺度下的模拟舍弃蛋白质分子尺度特性，使用基于经验模型的流体动力学进行计算，得出的结论往往不具有普适性，难以拓展；分子尺度的模拟虽然保留了蛋白质分子特性，但计算方式繁杂，研究范围局限于纳米尺度，不适用于蛋白质大分子的移动过程研究。介尺度模拟既保留了蛋白质分子尺度的特性，又适用于较大尺度的计算，逐渐成为研究的热点。 基于以上研究背景，本研究自主设计了一种新的介尺度模型 ...
裘若桑
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Biomass‐derived quinones are promising green and sustainable cathode materials for sodium‐ion batteries (SIBs), yet their practical application is hindered by poor cycling stability due to dissolution in conventional electrolytes. Herein, we demonstrate that sodiumation is an effective strategy to enhance both rate capability and cycling ...
Xinyue Zhu +4 more
wiley +1 more source
Jixie chuandong, 2015 <正>公司简介:哈尔滨广瀚动力传动有限公司是中国船舶重工集团公司第七○三研究所控股子公司,黑龙江省高新技术企业,公司以七○三所舰船动力传动专业为技术依托,拥有强大的设计、研发能力。公司通过长期的技术积累,掌握了高速、重载等核心动力传动技术,形成了一支高水平的研发技术团队,涵盖机、电、液等专业方向,实践经验丰富,研发模式己由传统的经验模式转变为更加严谨的理论-试验相结合模式,精通动力学分析、静力学分析、应力应变分析、流体仿真分析、
doaj +1 more source
镍基单晶超合金Ni/Ni3Al晶界的分子动力学模拟 [PDF]
, 2003 In this paper, molecular dynamics simulations are used to study the structure of Ni-based single superalloys with a {100} Ni/Ni3Al grain boundary. Two different initial models are relaxed at 300K using Finnis-Sinclair-type potential.
Cao, L. X. +4 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The realization of bifunctional perovskite devices integrating photovoltaic (PV) and light‐emitting diode (LED) capabilities requires precisely controlled grain architectures to facilitate dual carrier transport pathways. In this work, sulfaguanidine (SG) molecules were introduced into the perovskite solution to reconstruct the crystallization
Jiong Li +7 more
wiley +1 more source