Results 221 to 230 of about 7,958,224 (243)

Enhanced copper bath monitoring usingelectrochemical impedance spectroscopy

2004
Methods are required to monitor the composition and ageing of thechemicals used in copper electroplating baths in order to better guaranteethe quality of the deposited copper. We have used electrochemicalimpedance spectroscopy measurements on copper interconnect depositionbaths in a wafer fab to characterize changes in the condition of those baths.The ...
Zdunek, A., Sanz, D.N., Gabrielli, Claude, Mocoteguy, Philippe, Perrot, Hubert, Mace, C., Quennoy, A., Chabal, E.   +7 more
openaire   +1 more source

Preparation of Polyaniline@MoS2@Fe3O4 Nanowires with a Wide Band and Small Thickness toward Enhancement in Microwave Absorption

ACS Applied Nano Materials, 2018
It is well-known that the absorbing property of materials is related to the microstructure and can be enhanced by magnetic nanoparticles coating. However, the mechanism is still unclear that the magnetic coating structure plays an important role in the ...
Weidong Zhang, Xue Zhang, Yuan Zheng, Chao Guo, Meiyu Yang, Z. Li, Hongjing Wu, H. Qiu, Hongxia Yan, S. Qi   +9 more
semanticscholar   +1 more source

Performance enhancement of an induction motor by secondary impedance control

IEEE Transactions on Energy Conversion, 2002
This paper demonstrates the use of nonresistive secondary control of an induction motor to improve efficiency, power factor, and torque. A mathematical algorithm is presented to predict the control requirements in terms of secondary capacitance. The required secondary capacitance is implemented by a novel electronic switching technique that effectively
C. Suciu, M. Kansara, P. Holmes, W. Szabo   +3 more
openaire   +1 more source

A new active EMI filter with virtual impedance enhancement

Applied Power Electronics Conference, 2018
Zhe Zhang, Weiqiang Chen, A. Bazzi, Scott Ramsay, J.W. Czapor, John Aslanidis   +5 more
semanticscholar   +1 more source

0.3-THz SiGe-Based High-Efficiency Push–Push VCOs With > 1-mW Peak Output Power Employing Common-Mode Impedance Enhancement

IEEE transactions on microwave theory and techniques, 2018
Faisal Ahmed, M. Furqan, B. Heinemann, A. Stelzer   +3 more
semanticscholar   +1 more source

Stability Analysis and Damping Enhancement Based on Frequency-Dependent Virtual Impedance for DC Microgrids

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2017
Li Guo, Shaohui Zhang, Xialin Li, Y. Li, Chengshan Wang, Yibin Feng   +5 more
semanticscholar   +1 more source

Harmonic Suppression and Stability Enhancement for Parallel Multiple Grid-Connected Inverters Based on Passive Inverter Output Impedance

IEEE transactions on industrial electronics (1982. Print), 2017
Qiang Qian, Shaojun Xie, Liuliu Huang, Jinming Xu, Zhao Zhang, Binfeng Zhang   +5 more
semanticscholar   +1 more source

Research on Impedance Enhancement of Ultra-High Performance Concrete by Hollow Glass Microspheres

Hans Journal of Civil Engineering
铁梅 朱
semanticscholar   +1 more source

Extreme Impedance Calibrations: Enhancement of Metrology Infrastructure

Proceedings of the IMEKO TC8, TC11 and TC24 Conference on Measurement in Testing, Inspection and Certification
M. Cundeva-Blajer, M. Nakova, V. Sapundziovski, K. Demerdziev   +3 more
openaire   +1 more source

Bandwidth and Impedance-Matching Enhancement of Fractal Monopole Antennas Using Compact Grounded Coplanar Waveguide

IEEE Transactions on Antennas and Propagation, 2011
M. N. Jahromi, A. Falahati, Robert M. Edwards   +2 more
semanticscholar   +1 more source