Results 11 to 20 of about 6,277 (141)
Spatiotemporal response characteristics of transient electromagnetic field in water-bearing goaves and their applications [PDF]
Objective and Methods This study aims to enhance the accuracy of the mine transient electromagnetic method (MTEM) in of imaging of water-bearing goaves.
Fuqiang YANG +5 more
core +1 more source
Research on Eddy Current Testing of Damages in Carbon Fiber Reinforced Polymers [PDF]
, 2015 碳纤维增强树脂基复合材料因其优异的性能已被广泛应用于飞行器制造、汽车制造、化学工业、造船与电气设备等各个行业，尤其是在航空航天、船舰以及核能设备等领域受到高度重视。然而，复合材料结构件在制造和使用过程中不可避免的会因为冲击等原因产生各种类型的缺陷。此外，复合材料结构件在损坏之前几乎没有先兆，其破坏具有突然性，这一点往往造成严重的后果。因此对碳纤维增强树脂基复合材料损伤的无损检测研究具有极其重要的意义。 目前应用较多的检测碳纤维增强树脂基复合材料损伤的方法有红外检测、X射线检测以及超声检测等 ...
杜飞
core
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Managing diabetic wounds requires simultaneously addressing their infectious, oxidative, and regenerative impairments. To address this, this study integrates a piezoelectric BiOCl@CuSe heterojunction (PFM‐verified) into an injectable F127/HA hydrogel, creating an ultrasound‐responsive smart dressing.
Jiayan Guo +5 more
wiley +1 more source
Research on Key Issues in Eddy Current Nondestructive Evaluation of Residual Stress in Aluminum Alloy [PDF]
, 2015 铝合金作为制造业发展的基础材料，在航空航天、高速铁路、建筑工程、船舶制造、汽车工业等支柱产业中有着重要地位。残余应力往往是造成铝合金结构破坏的重要因素。有效的评价应力状态，特别是导致损伤出现的临界应力状态是评价设备结构强度、可靠性的重要依据。传统的无损检测方法已广泛应用于工程实际中，但大部分局限于对已成型的缺陷进行检测。对于可能导致损伤出现的隐性、不规律变化的残余应力状态的评价则较为困难。 目前，应用较多的残余应力检测法主要有盲孔法、X射线法、超声波法以及磁测法。这些方法在使用上都存在很大的局限性 ...
汪涛
core
Computational model of safe distance between HVAC transmission line and parallel buried pipeline [PDF]
Objective The vigorous development of China's economy has stimulated the development of public energy corridors. Owing to the similar preference in choosing sites for overhead power lines and oil-gas pipelines, these two kinds of corridors frequently ...
Aiwu LIANG +3 more
core +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The development of neuromorphic electronics with visual perception and adaptive capability is highly desirable for advancing artificial vision systems. Herein, we have demonstrated a dual‐plasticity adaptive phototransistor based on IGZO nanofibers that exhibits the perception and dynamic adaptation behavior of rod and cone cells to varying ...
Shanshan Jiang +5 more
wiley +1 more source
Modeling andSimulation of Shunt Current under the circumstances of one or two Compensation Capacitors Failure [PDF]
, 2017 轨道电路是由钢轨线路和钢轨绝缘构成的电路，用于自动、连续检测某段线路是否被机车车辆占用，补偿电容作为轨道电路的重要组成设备，可以有效的改善轨道电路的传输特性，延长其传输距离，对于保障列车安全运行起到了不可替代的作用，补偿电容失效将直接影响轨道电路对信号的传输，甚至危及行车安全，制约正常的运输效率。单个补偿电容故障，一般只会造成轨道电路接受端的接受电压些许下降，并不会造成红轨。正因为如此，补偿电容故障具有其他显性故障没有的隐蔽性，另外，对于已经失效的补偿电容故障查找 ...
刘扬
core
In-line inspection of pipeline crack based on biased AC field measurement [PDF]
Objective The traditional magnetic flux leakage (MFL) testing technique for pipelines has been found to be insufficient in detecting crack defects with a small angle to the magnetic field lines.
Bingfeng YU +7 more
core +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Moisture‐enabled electricity generation technology offers a new paradigm for sustainable energy harvesting, but its practical applications are still limited by issues such as low output power and insufficient long‐term stability. In this paper, an asymmetric sandwich‐structured hydrogel moist–electric generator (SSHMEG) with an ion ...
Peng Chen +7 more
wiley +1 more source
Gaoya dianqi, 2021 电缆作为高效、高可靠性的输电、供电方式,随着其应用范围的扩大,在实际运行中存在的问题也越发突出。文中就高速铁路牵引电流在电缆金属护套中产生的感应电压进行了分析计算,首先介绍了接触网计算理论,包括静电感应电压计算、电磁感应电压计算以及耦合感应电压计算。其次利用CDEGS软件对牵引电流在电力贯通电缆金属护套中产生的感应电压进行了仿真分析。最后根据计算结果说明在进行高速铁路电力贯通电缆线路设计、维护时,应充分考虑牵引电流对电力贯通电缆的影响,并采取措施把危害降低到最低程度。
牛金平
doaj