Results 131 to 140 of about 953 (152)
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A Novel ZCS-PWM Flyback Converter With A Simple ZCS-PWM Auxiliary Circuit
2005 International Conference on Power Electronics and Drives Systems, 2006This paper proposed a novel zero-current-switching pulsewidth-modulation (ZCS-PWM) flyback dc/dc converter using a simple ZCS-PWM auxiliary circuit. The main switch and auxiliary switch operate at zero-current-switching turn on and turn off, and the all passive semiconductor devices in the proposed converter operate at zero-voltage-switching (ZVS) turn
null Chien-Ming Wang +2 more
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Archives of Otolaryngology - Head and Neck Surgery, 1967
THE PURPOSE of this report is to present an improved type of skin incision in the otoplasty operation for protruding ears. As far as can be determined at this time, this ZC incision has not been previously described. A great deal of attention has been justifiably paid to the cartilaginous reconstruction with the view perhaps that the cutaneous surfaces
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THE PURPOSE of this report is to present an improved type of skin incision in the otoplasty operation for protruding ears. As far as can be determined at this time, this ZC incision has not been previously described. A great deal of attention has been justifiably paid to the cartilaginous reconstruction with the view perhaps that the cutaneous surfaces
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A ZCS bidirectional flyback converter
2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551), 2004This paper addresses the design and analysis of a zero-current-switched (ZCS) bi-directional flyback dc/dc converter. The converter is based on extending a previously developed unidirectional ZCS flyback converter and replacing the output diode with a controlled switch, which acts as either a rectifier or a power control switch in the corresponding ...
H.S.H. Chung +2 more
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Introduction: Main $$ZC$$ -Notions
2015In this chapter we summarize the main notions considered in this book and, briefly, the results that we obtain. Specifically, we define the pure graph theoretic and plane graph theoretic notions needed for this work with emphasis on symmetries.
Michel-Marie Deza +2 more
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Adding Temporary Memory to ZCS
Adaptive Behavior, 1994In a recent article, Wilson (1994) described a "zeroth-level" classifier system (ZCS). ZCS employs a reinforcement learning technique comparable to Q-learning (Watkins, 1989). This article presents results from the first reconstruction of ZCS. Having replicated Wilson's results, we extend ZCS in a manner suggested by Wilson: The original formulation ...
Dave Cliff, Susi Ross
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Search for Υ(1S,2S)→Zc+Zc(′)− and e+e−→Zc+Zc(′)− at sqrt(s)=10.52, 10.58, and 10.867 GeV
2018The first search for double charged charmoniumlike state production in gamma (IS) and gamma (2S) decays and in e(+) e(-) annihilation at sqrt(s) = 10.52, 10.58, and 10.867 GcV is conducted using data collected with the Belle detector at the KEKB asymmetric energy electron-positron collider.
Jia, S. +181 more
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A new forward ZCS-ZVS converter
1996 IEEE International Symposium on Circuits and Systems. Circuits and Systems Connecting the World. ISCAS 96, 2002This paper presents a steady-state analysis with complete characterization of the converter operation. The non-dissipative snubber associated with a forward converter provides the soft commutation switching. The proposed approach allows building a converter with high frequency operation. A detailed analysis of the operation is presented.
A.A. Pereira +4 more
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AIP Conference Proceedings, 2016
The BESIII Experiment at the Beijing Electron Positron Collider (BEPC2) collected large data samples for electron-positron collisions with center-of-mass above 4 GeV during 2013 and 2014. In this mass region, there are several states that are yet to be understood. In this article we will discuss BESIII analyses of the exotic Zc states.
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The BESIII Experiment at the Beijing Electron Positron Collider (BEPC2) collected large data samples for electron-positron collisions with center-of-mass above 4 GeV during 2013 and 2014. In this mass region, there are several states that are yet to be understood. In this article we will discuss BESIII analyses of the exotic Zc states.
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ZCS and ZVS power factor correction
1996 IEEE International Symposium on Circuits and Systems. Circuits and Systems Connecting the World. ISCAS 96, 2002The novel zero-current switching (ZCS) and zero-voltage switching (ZVS) high power factor single-phase AC to DC converters for the power factor correction are proposed in this paper. Merits of the proposed converters include higher power density, simpler control stage, zero switch loss, less harmonic control contents, unity power factor and ...
null Bor-Ren Lin, null Tsang-Sum Huang
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A Novel ZCS-PWM Flyback Converter With a Simple ZCS-PWM Commutation Cell
IEEE Transactions on Industrial Electronics, 2008This paper proposes a novel zero-current-switching pulsewidth-modulation (ZCS-PWM) flyback dc/dc converter using a simple ZCS-PWM commutation cell. The main switch and auxiliary switch operate at ZCS turn-on and turn-off conditions, and all uncontrolled devices in the proposed converter operate at zero-voltage-switching (ZVS) turn-on and turn-off.
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