Results 51 to 60 of about 18,724 (162)
Gaoya dianqi, 2015 文中提出了一种新型的基于超导限流技术的自激型直流断路器,该断路器由超导限流模块和直流开断模块组成。笔者的研究目标是分析直流开断模块的自激开断过程以及相关参数对开断过程的影响,验证原理可行性。文中研究了该超导限流式直流断路器在不同额定电压下（10、100、320 k V）开断的可行性。通过研究10 k V的额定电压下交换回路参数和电弧参数对开断特性的影响,100 k V额定电压下仿真开断模型工作过程,320 k V下限流模块和开断模块配合原理,得出该直流断路器原理可行 ...
项彬 +4 more
doaj
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT The high accuracy in surface‐enhanced Raman scattering‐lateral flow immunoassays (SERS–LFIAs) is critical for reliable point‐of‐care testing (POCT) in clinical diagnostics. Conventional approaches are often affected by sampling variability and uneven distribution of immunoprobes, leading to unreliable signal fluctuations.
Shuai Zhao +9 more
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Gaoya dianqi, 2002 论述了提高双断口真空断路器开断能力的原理 ,比较了双断口和单断口真空断路器的开断能力。实验结果表明 ,双断口真空断路器的开断能力较单断口高 2倍。讨论了均压电容对开断能力的影响 ,提出了对操动机构的要求 ,最后 ,介绍了多断口真空断路器的优点。
廖敏夫, 邹积岩, 段雄英
doaj
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT In recent years, the field of magnetic materials has witnessed a paradigm shift from single‐function applications to multifunctional integration, driven by the growing demand for smart materials in advanced technologies. Among various magnetic systems, La(Fe, Si/Al)13‐series materials have emerged as particularly promising candidates due to ...
Irfan Liaquat +2 more
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A method of CNC handwheel connection based on serial communication [PDF]
, 2010 为了解决总线模式数控系统中手轮信号采集、传输难的问题,采用了一种新型的手轮连接方式,即通过工业计算机现有的串口读取手轮的脉冲信号,经特定程序识别处理后,交由数控系统内核以完成相应的运动控制。实验结果表明,利用串口实现手轮连接,不仅能够达到传统连接方式下手轮工作的全部性能指标,而且能减少硬件数量,降低系统成本,简化系统结构,有利于进一步提高系统的可靠性。Aiming at the difficulty of handwheel's signal collection and transmission in
李寅, 章明众, 陈华, 陈永明
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Research on Fault Location in Integrated Energy Systems Based on Improved Binary Particle Swarm Optimization Algorithm [PDF]
ObjectivesThe coverage of power systems continues to expand, and the structure of integrated energy systems is becoming increasingly complex. This trend leads to a significant decline in the accuracy of fault location in the distribution network that is ...
GAO Yang +5 more
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Ultrasound in Obstetrics &Gynecology, Volume 67, Issue 2, Page 207-219, February 2026.ABSTRACT Objective To test the non‐inferiority of extended abdominopelvic ultrasound examination compared with contrast‐enhanced computed tomography (CT) and whole‐body diffusion‐weighted magnetic resonance imaging (WB‐DWI/MRI) in discriminating preoperatively between resectable and non‐resectable disease based on the European Society for Medical ...
D. Fischerova +26 more
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Gaoya dianqi, 1994 一、概述高压负荷开关一熔断器组合电器具有很多优点,因此,在三相环网供电单元中和箱式变电站组成的开关柜中,多数采用了这种组合电器来代替传统的断路器.这种高压负荷开关一熔断器组合电器是由熔断器来承担过载电流和短路电流的开断.而由高压负荷开关来承担过载电流（此过载电流对高压负荷开关来说仍在高压负荷开关的额定开断电流范围）和正常工作电流的关合和开断,并且要求承担“转移电流”的开断.根据IEC—420标准的定义:组合电器的“转移电流”取决于熔断器触发高压负荷开关的分闸时间和熔断器的时间一电流特性.
王季梅, 卜小玉, 蔡龙权
doaj
Systematic Structure Design & Simulation Analysis of Low-voltage Circuit Breaker [PDF]
, 2009 低压断路器的设计与生产技术在一定程度上反映了整个低压电器发展的水平，低压断路器也是电力工程与自动化领域的一大支柱产业。低压断路器是低压成套开关设备的重要组成部分，低压断路器的功能及性能对低压成套开关设备起着至关重要的作用。 低压断路器的核心智能脱扣器作为低压断路器的数据采集和信号处理单元，在断路器中起着“大脑”一样的作用。其在工业监控现场工作时，大量的干扰源可能会造成控制器采样失真、控制失灵，无法正常发出脱扣指令或者不断频繁误动作等，造成重大的事故。因此，要求脱扣器具有较强的抗外界电磁干扰的能力 ...
白晔
core
Journal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.ABSTRACT Bangladesh's goal of achieving high‐income status by 2041 requires dependable, low‐emission, and affordable energy. With near‐universal grid coverage and increasing demand, nuclear energy is a strategic asset for long‐term baseload supply. However, the existing financing model, typified by the country's most expensive $12.65 billion Rooppur ...
Hafiz Ahmed
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