Results 291 to 300 of about 3,886,976 (355)

Reversal of recovery direction during creep recovery of polymer blends

Journal of Rheology, 1995
At small stresses or strains, polymeric liquids show a linear viscoelastic behavior. This can be demonstrated in creep followed by creep recovery.
H. Gramespacher, J. Meissner
openaire   +1 more source

A Low Reverse Recovery Charge Superjunction MOSFET With an Integrated Tunneling Diode

IEEE Transactions on Electron Devices, 2019
A superjunction MOSFET with an integrated tunneling diode is proposed and investigated by simulations in this article. The tunneling diode comprised the N+ region and the P+ region on the surface of the P-base region is connected in series with the P+/P ...
Ping Li, Jingwei Guo, Shengdong Hu, Zhi Lin, Fang Tang   +4 more
semanticscholar   +1 more source

Reversal and Recovery

1997
Abstract Peace brought perils as grave as any in wartime for such City firms as Kleinwort, Sons & Co. At the end of the war in 1918 their acceptances were down to a mere £5m. from the 1913 high of £14.2m. Due to increased trading in the Americas, however, the partners’ capital had grown slightly to £4.6m., which was £263,000 more ...
openaire   +1 more source

Fast recovery diodes - reverse recovery behaviour and dynamic avalanche

2004 24th International Conference on Microelectronics (IEEE Cat. No.04TH8716), 2004
This paper deals with the dynamics of the internal charge carriers during the reverse recovery process of a fast power diode. For two conditions, simplified approximations are given for analytical investigation, and parameters for achieving soft recovery are derived. Finally, both conditions are investigated with regard to dynamic ruggedness.
openaire   +1 more source

A Simulation Study of a Novel Superjunction MOSFET Embedded With an Ultrasoft Reverse-Recovery Body Diode

IEEE Transactions on Electron Devices, 2019
In this paper, a novel superjunction (SJ) MOSFET embedded with an ultrasoft reverse-recovery body diode is proposed and studied by simulation. The device has a composite assistant layer, which consists of a highly doped n-buffer region and an extended p ...
Zhi Lin, Qi Yuan, Shengdong Hu, Xichuan Zhou, Jianlin Zhou, Fang Tang   +5 more
semanticscholar   +1 more source

Extraction of Trench Capacitance and Reverse Recovery Time of InGaAs Self-Switching Diode

IEEE transactions on nanotechnology, 2019
In this paper, we have presented the transient analysis of an InGaAs based novel nano diode called self-switching device utilizing Silvaco TCAD simulator. The device exhibits current-voltage (I-V) characteristics analogous to a conventional diode without
S. Garg, B. Kaushal, Sanjeev Kumar, S. R. Kasjoo, S. Mahapatra, A. Singh   +5 more
semanticscholar   +1 more source

Diode Reverse Recovery Characteristics of a Shielded-Gate Trench Power MOSFET

International Symposium on Power Semiconductor Devices and IC's, 2019
A better understanding of the diode reverse-recovery behavior of power MOSFET is critical when designing a power electronics systems with faster switching speed, minimum switching losses, and higher system efficiency.
Z. Hossain, Raghuram Mullapudi, H. Surdi
semanticscholar   +1 more source

Reversible Cross Linking in Oil Recovery

SPE Oilfield Chemistry Symposium, 1973
This paper was prepared for the Oilfield Chemistry Symposium of the Society of Petroleum Engineers of AIME, to be held in Denver, Colo., May 24–25, 1973. Permission to copy is restricted to an abstract of not more than 300 words. Illustrations may not be copied.
openaire   +1 more source

A New Perspective on the Plasma Clearance during Overcurrent Reverse Recovery of Silicon High-Voltage Power Diodes

2019 3rd International Conference on Electronic Information Technology and Computer Engineering (EITCE), 2019
Using 2D mixed-mode device simulation, this paper examines the overcurrent turn-off or reverse recovery of a 3.3-kV silicon fast recovery diode. Simulation results show that cathode-side current filaments (CCFs) play more roles than expected during the ...
Yu Wu, Lihao Wang, Y. Wang, Rui Jin, J. Wen, Xintian Zhou, Yunpeng Jia, D. Hu   +7 more
semanticscholar   +1 more source

Enzyme recovery by liquid-liquid extraction using reversed micelles

The Chemical Engineering Journal, 1986
Abstract The recovery of α-amylase by liquid-liquid extraction, using a reversed micellar phase to transport the enzyme from one aqueous phase to another, has been investigated. Reversed micelles are aggregates of surfactant molecules in an apolar solvent, surrounding an inner core of water.
Dekker, M., van 't Riet, K., Weijers, S.R., Baltussen, J.W.A., Laane, C., Bijsterbosch, B.H.   +5 more
openaire   +3 more sources