Results 21 to 30 of about 4,486 (166)
Development and applications of ultrasound elastomicroscopy [PDF]
2006-2007 > Academic research: refereed > Publication in refereed journalVersion of ...
Shi, J, Yan, ZZ, Zheng, YP, Zhou, KY
core
A Mini Review of Scientific Designs of Dynamic Responsive Fluids in Battery Technologies
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
对用于断路器机械特性测试的几种位移传感器原理进行了阐述,针对中压断路器机械操动机构结构紧凑的特点,对影响中压断路器机械特性监测精度的因素进行了分析。设计了抗干扰能力强的传感器信号检测电路,通过机械特性性能测试试验和机械寿命试验证明:旋转编码器和激光位移传感器这两种位移传感器是中压断路器机械特性监测的理想传感器,在不影响断路器原有性能参数及可靠性的情况下,不但能真实地反映其行程特性,而且能够在高电压、大电流、强冲击振动的恶劣环境下长期稳定工作。
张显聪 +6 more
doaj
Research on New Type of 252kV GIS Design Concept and Key Technologies [PDF]
随着社会经济的繁荣进步,用电量需求的不断增长,城市变电站的新建和扩容需求日益强烈。目前国内已有的252kV气体绝缘金属封闭开关设备(GasInsulatedSwitchgear,简称GIS)由于占地面积大,SF6气体使用量过多,内部电场复杂。为了减少在高压开关设备中用于灭弧和绝缘的SF6这种温室气体的用量,对新一代的252kVGIS进行优化处理势在必行。GIS设备的小型化、易操作、智能化、高可靠性、制造和运行低成本已成为一种发展趋势。本文在已有的理论和实践的基础上,对GIS的技术发展进行了研究和探讨 ...
胡辉
core
Z-direction Enhancing Manufacturing Strategy for 3D Printing Prosthetic Socket of Continuous Fiber Composite [PDF]
The prosthetic socket is a necessary rehabilitation-aid equipment for lower limb amputees. As an important kind of human-machine interface between the residual limb and the prosthesis, the prosthetic socket plays an important role in containing the ...
Li, D +7 more
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ABSTRACT Mechanoluminescent materials have gained significant attention for their unique capability to convert mechanical stimuli into light without external optical or electrical excitation, holding immense promise for applications in safety monitoring, biomedicine, optical anti‐counterfeiting, and intelligent sensing.
Fanlei Qin +8 more
wiley +1 more source
Adaptive Chemical Strain Boundary in Freestanding BiSmFe2O6 Double‐Perovskite Membranes
ABSTRACT Double‐perovskite multiferroic systems have attracted increasing attention due to their highly tunable structures and chemical adaptability. The uncontrollable performance changes caused by the release of boundary conditions are an important factor hindering the development of freestanding membranes.
Jie Tu +14 more
wiley +1 more source
电磁斥力机构是快速机械开关的核心部件,在快速合闸和分闸过程中巨大的电磁驱动力会给电磁斥力机构和整个机械传动系统带来强烈的瞬态冲击。针对该问题,文中对电磁斥力机构在合闸和分闸全过程中的机械特性和结构强度进行了研究。采用LS-DYNA建立快速机械开关的有限元仿真计算模型,并求解得到合闸和分闸全过程各零部件的机械运动特性和瞬态冲击强度。采用激光测距对某单断口快速机械开关进行了实验测量,得到合闸和分闸过程的时间—行程特性曲线,实验测量结果和仿真计算结果匹配良好。最后对仿真计算模型进行参数优化,从而降低合闸弹跳 ...
熊杰, 刘彬, 于海波, 刘国伟
doaj
Discussion on the Teaching of Motor and Driving Subject [PDF]
针对目前高校自动化、电力电子等专业的电机拖动课程的教学情况,提出存在的问题及改革的方法,以提高该课程的教学质量。This paper discussed the teaching of Motor and Driving subject covering the major of automation and power electronics.
王晓雪, 隋榕生
core
ABSTRACT Objective To evaluate the use of twin vs singleton growth charts for detecting small‐for‐gestational‐age (SGA) twins at risk of adverse neonatal outcomes. Methods MEDLINE, EMBASE, CINAHL, Cochrane and Scopus databases were searched electronically from inception to May 2024.
S. Sorrenti +9 more
wiley +1 more source

