Results 51 to 60 of about 1,534 (162)

Intelligent interference decision algorithm with prior knowledge embedded LSTM-PPO model [PDF]

open access: yes
Focusing on the issues of low efficiency and effectiveness in decision-making as well as the instability of traditional reinforcement learning model-based multi-function radar (MFR) jamming decision algorithms, a prior knowledge embedded long short-term ...
LI Chao   +3 more
core   +1 more source

A Mini Review of Scientific Designs of Dynamic Responsive Fluids in Battery Technologies

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Dynamic responsive fluids are emerging as transformative elements in the evolution of battery technologies, marking a pivotal shift from static passive designs toward systems that actively sense and adapt to their operating environments. By integrating dynamic responsive fluids, batteries can interact with both internal and external stimuli in
Xiu‐Zhen Yang   +11 more
wiley   +1 more source

750kV/330kV混压同塔四回输电线路电磁环境研究

open access: yesGaoya dianqi, 2019
为了有效研究750kV/330kV混压同塔四回输电线路电磁环境,文中采用模拟电荷法计算同塔四回混压输电线路导线下的工频电场,采用毕奥—萨瓦定律计算磁场数值,并采用激发函数法进行了无线电干扰的计算,同时运用BPA公式进行了可听噪声的计算。针对同塔四回混压输电线路不同导线相序布置、不同分裂间距、不同杆塔呼称高进行了系统的研究。结果表明:A、B型塔采用A6和B6相序布置可以有效改善线路下方电磁环境;导线分裂间距对电场、磁感应强度影响较小;电场、磁感应强度、无线电干扰和可听噪声随着杆塔呼称高增加而降低,其中电场、
郭天伟   +5 more
doaj  

变电站工频磁场干扰对泄漏电流传感器准确度影响研究

open access: yesGaoya dianqi, 2021
文中在某1 000 kV特高压变电站测试了避雷器泄露电流传感器的实际运行问题:采集数据误差过大、变化剧烈。针对1 000 kV特高压变电站避雷器泄漏电流数据采集不准确的问题,在变电站电抗器区域搭建试验环境,验证避雷器泄漏电流传感器采集精度受工频磁场影响,工频磁场强度越大,避雷器泄露电流传感器采集误差越大,两者近似线性关系。在实验室内搭建工频磁场仿真环境,对不同结构的电流传感器在工频磁场干扰下进行采集精度试验,结果表明无源全封闭式泄漏电流传感器抗工频磁场能力最好 ...
于大洋   +6 more
doaj  

Realizing the Enhanced Electromagnetic Wave Absorption and Self‐Cleaning Pollution in BaFe12O19 Composite

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT With increasing complex requirement in organic pollution environment, the development of actual electromagnetic wave (EMW) absorbers with high EMW absorption performance and self‐cleaning pollution function is becoming a significant challenge.
Shou‐Hang Lv   +8 more
wiley   +1 more source

脉冲高压强流环境中的电磁防护距离的初步探讨

open access: yesDianci bileiqi, 2002
从Maxwell时变电磁场的微分方程出发,导出了通过脉冲电流的直导线周围电磁分量的计算公式及分布情况。在生物电介质介电模型的基础上,探讨了脉冲电磁场与细胞或生物体之间的相互作用,提出了高压强流环境的电磁防护问题,初步提出脉冲高压强流环境下的安全距离。
姚学玲, 陈景亮
doaj  

飞行器内部雷电电磁环境仿真研究

open access: yesDianci bileiqi, 2015
飞行器雷电防护的重要性不言而喻,了解其内部雷电电磁环境的分布规律有利于机舱内电子设备及线缆的合理布局。考虑直击雷引起的飞行器内部电磁环境分布情况,采用三维几何建模软件SolidWorks建立简化的机舱模型,将其导入FEKO电磁场仿真软件中。采用矩量法(MoM)对整个电磁模型进行扫频求解,将得到的频域结果在POSTFEKO模块中进行傅里叶逆变换(IFFT)得到时域结果,然后对其进行分析和讨论。结果表明,采用FEKO仿真的飞行器内部雷电电磁环境可以为飞行器防雷工程提供合理参考。
宿志国   +4 more
doaj  

Optimization of Temperature-sensitive Contact Optical Fiber Lead Packaging and Characterization of Its Response Characteristics [PDF]

open access: yes
【Objective】Optical fiber sensors, featuring compact size, lightweight design, and electromagnetic interference immunity, show significant potential in power system applications. To meet the temperature-monitoring requirement for the movable contacts of a
LIU Shengnan   +4 more
core   +1 more source

The Study of EMC Overall Design for Flat-Panel TV [PDF]

open access: yes, 2008
电磁兼容(EMC,ElectromagneticCompatibility)是当今电子科技领域非常重要的一项技术。电子产品必须符合所销地国家强制的EMC标准,平面电视的设计必须满足EMC标准的要求。 论文按照先理论后实践再理论总结的原则,讨论了平面电视EMC可能涉及的系列问题。首先简要回顾了EMC的起源及发展、相关的EMC的概念及标准,从宏观上针对平面电视的EMC整体方案设计可能碰到的问题进行系统分析及模块化讨论,并在细节上分四个章节讨论了实际设计中重点要处理的问题:包括PCB设计方案、接地处理技术 ...
武建埭
core  

低压预制母线温升特性的建模仿真研究

open access: yesGaoya dianqi, 2022
低压预制母线用于10 kV柱上变压器的二次侧,是一体化改造的重要举措,而研究其温升特性具有重要意义。论文主要选取额定电流为630 A的低压预制母线作为研究对象,首先建立了其三维几何模型,采用电磁场—温度场以及电磁场—气流场—温度场耦合的多物理场模型,对其展开了仿真研究,并与型式试验结果进行了对比,验证了仿真结果的正确性。处于自然对流条件下的预制母线采用电磁场-温度场耦合模型,处于强制对流条件下的预制母线采用电磁场—气流场—温度场耦合模型。同时,文中仿真分析了不同负载情况下的预制母线温升分布情况 ...
古海良   +10 more
doaj  

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