Results 41 to 50 of about 123,218 (196)

A resonant photoacoustic spectroscopy sensor for ppb-level detection of acetylene employing a 1.53 μm laser diode

Frontiers in Physics
A compact and highly sensitive photoacoustic spectroscopy (PAS) sensor for dissolved acetylene (C2H2) detection was developed for transformer fault diagnosis applications.
Lei Peng, Yihua Qian, Yaohong Zhao, Qing Wang, Yifeng Zhao, Qiang Fu   +5 more
doaj   +1 more source

The electric field in northern England and southern Scotland: implications for geomagnetically induced currents. [PDF]

, 2006
Magnetotelluric (MT) data, in the form of MT tensors, are used to estimate directly the size and spatial distribution of the electric field in northern England and southern Scotland with the aim of predicting the flow of geomagnetically induced currents ...
McKay, A. J., Whaler, K. A.; id_orcid, McKay, Allan, Whaler, K.A.   +3 more
core   +1 more source

Detection of trace CF4 in C4F7N‐insulated gas‐insulated metal‐enclosed switchgear: Cascading specific chemical reactions with photoacoustic spectroscopy

High Voltage
CF4 is a major decomposition product of the insulating gas in C4F7N‐insulated gas‐insulated metal‐enclosed switchgear (GIS) during partial discharge or overheating faults.
Zhicheng Wu, Jiahao Du, Zehao Zhang, Xiang Li, Shengjin Wang, Xiaoang Li, Qiaogen Zhang   +6 more
doaj   +1 more source

FEATURES OF ELECTRIC MOTOR CHOICE FOR NUCLEAR POWER PLANT TECHNOLOGICAL OBJECTS

Electrical engineering & Electromechanics, 2013
Nuclear power plants remain the basic power generating enterprises for Ukraine. Execution of works on their reliability control and operating conditions optimization is therefore of current importance.
V.V. Shevchenko, T.P. Pavlenko
doaj  

Detection of hydrophobicity grade of insulators based on AHC-YOLO algorithm

Scientific Reports
Thanks to the rapid development of image processing technology, the efficiency and accuracy of power inspection have been enhanced through deep learning techniques. However, during on-site inspections, the complexity of the background images of composite
Shaotong Pei, Weiqi Wang, Peng Wu, Chenlong Hu, Haichao Sun, Keyu Li, Mianxiao Wu, Bo Lan   +7 more
doaj   +1 more source

Study on residual-magnetism detection of protection current transformers based on square-wave excitation at a predefined frequency

Zhejiang dianli
Accurate detection of residual magnetism in protection current transformer （CT） cores is essential for effective demagnetization and for preventing protection misoperations caused by CT saturation.
ZHANG Xin, GONG Chengyao, CHEN Yunlong, HU Yin, HUANG Chencheng, ZHENG Taiying   +5 more
doaj   +1 more source

Electrical Tree Initiation Properties in Cross-Linked Polyethylene Under DC-Impulse Composite Voltages

IEEE Access, 2018
DC cables may be subjected to impulse overvoltage during operation, which may cause electrical tree inside the cable insulation. So, it is necessary to investigate the influence of impulse voltage on the insulation of dc cable.
Hechen Liu, Yanda Li, Yunpeng Liu, Mingjia Zhang, Xiaobin Xu, Aijing Liu   +5 more
doaj   +1 more source

NetBem : business equipment energy monitoring through network auditing

, 2010
Presented at the 2nd ACM Workshop On Embedded Sensing Systems For Energy-Efficiency In Buildings (BuildSys 2010), at ACM SenSys 2010, Zurich, Switzerland, November 2, 2010Modern office buildings are fully equipped and furnished spaces with arrangements ...
A. G. Ruzzelli, G. M. P. O'Hare, Ruzzelli, Antonio G., O'Hare, G. M. P. (Greg M. P.), A. Sintoni, Sintoni, Alex, Schoofs, Anthony, A. Schoofs, O\u27Hare, G. M. P. (Greg M. P.)   +8 more
core   +1 more source

Evolution of Equipment in Electromobility and Autonomous Driving Regarding Safety Issues

, 2023
Over the years, an increase in the traffic of electric and hybrid electric vehicles and vehicles with hydrogen cells is being observed, while at the same time, self-driving cars are appearing as a modern trend in transportation.
Athanasios Karlis, Christodoulos Katis
core   +1 more source

ENERGY EFFICIENCY RESOURCE ASSESSMENT AND OPTIMIZATION AT UNIVERSITY OF ENGINEERING AND TECHNOLOGY [PDF]

Fiabilitate şi Durabilitate
This research is the summary of energy usage in UET Peshawar located in Peshawar, Pakistan. Electricity and natural gas are the main consumers of energy in university.
Ikhrad KHAN, M. Faizan KHAN, Shakir KHAN
doaj