Results 291 to 300 of about 167,043 (312)

Acetazolamide reversibly inhibits water conduction by aquaporin-4

Journal of Structural Biology, 2009
Aquaporin-4 (AQP4) has been implicated in cytotoxic brain edema resulting from water intoxication, brain ischemia or meningitis. AQP4 inhibitors suitable for clinical use would thus be expected to help protect against brain edema. Here, we report the effect of inhibitors on water conduction by AQP4 and AQP1 reconstituted into liposomes.
Yukihiro, Tanimura, Yoko, Hiroaki, Yoshinori, Fujiyoshi   +2 more
openaire   +2 more sources

Study of the SiC JFET Reverse Conduction and Reverse Blocking Characteristics

2019 IEEE Applied Power Electronics Conference and Exposition (APEC), 2019
SiC JFET is one type of interesting wide bandgap power semiconductor devices and has some potential in a few applications due to its low specific on resistance, fast switching speed and simple structure. However, the device is different from SiC MOSFETs and the engineers may not be familiar with their characteristics.
Xiaoqing Song, Yu Du
openaire   +1 more source

A snapback suppressed reverse-conducting IGBT with soft reverse recovery characteristic

Superlattices and Microstructures, 2013
Abstract A reverse-conducting insulated-gate bipolar transistor (RC-IGBT) featuring floating P-region (P-float) embedded in the n-buffer layer is proposed. The P-float plays three roles at different working conditions. Firstly, it introduces a barrier in the n-buffer to obstruct the electron current from flowing directly to the n-collector at small ...
Weizhong Chen, Zehong Li, Bo Zhang, Min Ren, Yong liu, Zhaoji Li   +5 more
openaire   +1 more source

Reversible electron-induced conductance in polymer nanostructures

Journal of Applied Physics, 2010
We report a mechanism for controlling conductance in polymer nanostructures. Poly(3-dodecylthiophene-2,5-diyl) (PDDT) nanostructures were directly written between gold electrodes using thermal dip pen nanolithography and then characterized in UHV.
A. R. Laracuente, M. Yang, W. K. Lee, L. Senapati, J. W. Baldwin, P. E. Sheehan, W. P. King, S. C. Erwin, L. J. Whitman   +8 more
openaire   +1 more source

RC-TCIGBT: A Reverse Conducting Trench Clustered

Proceedings of the 19th International Symposium on Power Semiconductor Devices and IC's, 2007
A new, three terminal, reverse conducting trench clustered IGBT (RC-TCIGBT) is proposed and evaluated using numerical simulations in 1200 V, non-punch through (NPT) technology. This device is a monolithic integration of an anti- parallel thyristor (APT) in the TCIGBT (O. Spulber, et. al., December 2000), (K. Vershinin, et. al., June 2006).
Dinesh Kumar, Mark Sweet, Konstantin Vershinin, Luther Ngwendson, E.M.S. Narayanan   +4 more
openaire   +1 more source

High Power Reverse Conducting GTO

1992
Among modern high power Gate Turn-Off thyristors (GTO’s), the asymmetric blocking type has received most attention by far in device development and in applications. This is mainly due to its superior trade-off for on-state vs. turn-off losses and to the high efficiency obtained by optimized anode shorts.
openaire   +1 more source

Spin reversal transitions in impurity hop conduction

Physics Letters A, 1967
Abstract The magnetoresistance ϱ/ϱ o of phonon-assisted hop conduction in n-type Ge is found to have an appreciable temperature dependence at high magnetic fields. Reversal of spins of electrons while they make interdonor transitions is shown to be responsible.
J.A. Chroboczek, E.W. Prohofsky, R.J. Sladek   +2 more
openaire   +1 more source

Optimized control method for reverse conducting IGBTs

2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe), 2017
This paper introduces a control method for Reverse-Conducting (RC-)IGBTs which reduces the control dead time of RC-IGBT inverters. Switching measurements with 6.5 kV RC-IGBTs concerning the applicability of the introduced control method and the effect of a load current direction change during the desaturation pulse are presented.
Daniel Lexow, Holger Wiencke, Karl Fleisch, Daniel Domes, Hans-Gunter Eckel   +4 more
openaire   +1 more source

Current Reversal and Negative Conductance for a Super-Conducting Junctions Device

Communications in Theoretical Physics, 2009
In the paper, we study a super-conducting junctions device subject to an input periodic signal and a constant force. It is shown that, for this device, we can get current reversals for the current of the electron pairs versus the frequency of the periodic signal and negative conductance for the current of the electron pairs as a function of the ...
openaire   +1 more source

Reversible, Nanometer-Scale Conductance Transitions in an Organic Complex

Physical Review Letters, 2000
Reversible conductance transitions are demonstrated on the molecular scale in a complex of 3-nitrobenzal malononitrile and 1, 4-phenylenediamine, by application of local electric field pulses. Both macroscopic and local current-voltage (I/V) measurements show similar electrical bistability behavior.
, Gao, , Sohlberg, , Xue, , Chen, , Hou, , Ma, , Fang, , Pang, , Pennycook   +8 more
openaire   +2 more sources