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Impulsivity in personality disorders
Current Opinion in Psychiatry, 2018Impulsivity is considered a trans-diagnostic feature of many mental disorders, yet our understanding of the concept and approaches to measurement have evolved significantly with advances in neuroimaging. This review will provide an overview of impulsivity as it is currently understood, its association with personality disorder and implications for ...
Catherine, McHugh +1 more
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Low-Resistance Shunts for Impulse Currents
IEEE Transactions on Power Apparatus and Systems, 1971In high-voltage technology, plasma physics and power electronics low-ohmic resistors are frequently employed to measure high, rapidly changing currents. Their voltage drop is adversely affected by stray inductances and skin effect. A more complete analysis of low- ohmic tubular type and squirrel cage type resistors including such effects is presented ...
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IEC 60060-1 Requirements in Impulse Current Waveform Parameters
International Journal of Emerging Electric Power Systems, 2005There are IEC 60060-1 requirements on three impulse current waveforms. For the damped-oscillating waves, margins of the front time T1 and the time to half the peak T2 are 10 per cent whilst any value after the polarity reversal has to be less than 20 per cent of the peak value.
S. Sato, T. Harada, M. Hanai
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Measurements of grounding resistances for high impulse currents
IEE Proceedings - Generation, Transmission and Distribution, 1998The paper presents field measurements of surge characteristics of a concrete pole, a buried single conductor and a grounding net for high-impulse currents with a maximum magnitude of 40 kA and with a wavefront duration of a few microseconds. The measured results show that the grounding resistances are greatly dependent on the applied currents and have ...
S. Sekioka +3 more
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Impulse current testing system for simulating lightning effect
2014 International Conference on Audio, Language and Image Processing, 2014This paper introduced the impulse current testing system for simulating lightning effects. The shield method to suppress the interference was addressed in this paper. After compared with three filter methods, it was verified that the wavelet transform is most suitable for measuring the impulse by using the digital filter technology to get the actual ...
Yi Lin, Qibin Zhou
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Acquisition of current impulses in electrical discharge machining
2017 Zooming Innovation in Consumer Electronics International Conference (ZINC), 2017This paper presents a solution for the acquisition of electrical impulses generated in electrical discharge machining of material. These electrical impulses may be relevant when examining the material properties. Although the device used for electrical discharge machining doesn't have the possibility for this acquisition, choosing the predefined ...
Branislav Batinic +4 more
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Impulse excitation of eddy current probes
AIP Conference Proceedings, 2000Impulse excitation of eddy-current transducers has a number of considerable benefits in comparison with traditional harmonical excitation for the reaction impulse contains a wide range of harmonics, i.e. much more information. Impulse excitation has some special features: the reaction impulse maximum value depends only on geometrical parameters of the ...
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Impulse-Current Generation by the Bispin: Factors Determining the Peak Current
Russian Microelectronics, 2003A study of the bispin is presented. The bispin is a semiconductor device that can convert incident light into a relaxation self-sustaining oscillation of electric current in the form of sharply peaked impulses, thus making both a photodetector and an electrical-pulse generator.
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200kA Impulse Current Measuring System for SPD
2006 IEEE 8th International Conference on Properties and applications of Dielectric Materials, 2006An auto impulse current measuring system for surge protective device (SPD) with power source was studied, the system was composed of impulse current generator, programmable logical controller (PLC), couple and decouple network (CDN), power tracking circuit and intelligent digital peak measuring instrument.
Jingliang Chen, Xueling Yao, Wei Sun
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Conversion of capacitor energy into current impulses
1965Publisher Summary This chapter discusses the methods for conversion of capacitor energy into current impulses. The conversion of capacitor discharges into current impulses must generally satisfy one of two requirements. It may be important to obtain a steep buildup in the current impulse, for example, a rise to 10,000 amp in 1/10 μ-sec and, thus, 1011
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