نتایج جستجو برای: rectification

تعداد نتایج: 4550  

Journal: :NeuroImage 2011
Zubeyir Bayraktaroglu Katherina von Carlowitz-Ghori Florian Losch Guido Nolte Gabriel Curio Vadim V. Nikulin

Cortico-muscular coherence (CMC) reflects interactions between muscular and cortical activities as detected with EMG and EEG recordings, respectively. Most previous studies utilized EMG rectification for CMC calculation. Yet, recent modeling studies predicted that EMG rectification might have disadvantages for CMC evaluation. In addition, previously the effect of rectification on CMC was estima...

2004
Biswajit Bose Eric Grimson

Most outdoor visual surveillance scenes involve objects moving on a ground plane. We present a new, fully automated technique for both affine and metric rectification of this ground plane (up to a scale factor) by simply tracking moving objects. In particular, we derive the necessary constraints on the image plane to ground plane projective transformation by observing objects which move at cons...

Journal: :The Journal of General Physiology 2000
Donglin Guo Zhe Lu

The IRK1 channel is inhibited by intracellular cations such as Mg(2+) and polyamines in a voltage-dependent manner, which renders its I-V curve strongly inwardly rectifying. However, even in excised patches exhaustively perfused with a commonly used artificial intracellular solution nominally free of Mg(2+) and polyamines, the macroscopic I-V curve of the channels displays modest rectification....

Journal: :The Journal of General Physiology 1994
A N Lopatin C G Nichols

Delayed rectifier potassium channels were expressed in the membrane of Xenopus oocytes by injection of rat brain DRK1 (Kv2.1) cRNA, and currents were measured in cell-attached and inside-out patch configurations. In intact cells the current-voltage relationship displayed inward going rectification at potentials > +100 mV. Rectification was abolished by excision of membrane patches into solution...

2010
Xinning Ho Lina Ye Slava V. Rotkin Xu Xie Frank Du Simon Dunham Jana Zaumseil John A. Rogers

We present theoretical and experimental studies of Schottky diodes that use aligned arrays of single-walled carbon nanotubes. A simple physical model, taking into account the basic physics of current rectification, can adequately describe the single-tube and array devices. We show that for as-grown array diodes, the rectification ratio, defined by the maximum-to-minimum-current-ratio, is low du...

2006
F. G. Aliev

The introduction of the manuscript reviews different mechanisms of generation of permanent electric fields by AC driven vortex lattices in type-II superconductors due to artificial symmetry breaking. The second part shows that superconducting Pb and Nb films (strips or crosses) with or without symmetric periodic pinning centers, subject to a magnetic field perpendicular to the film plane, also ...

2011
Yun-Suk Kang Yo-Sung Ho

In this paper, we propose an efficient stereo image rectification method using the horizontal baseline. Since the stereo camera is generally manually arranged, there are geometric errors due to the camera misalignment and the differences between the camera internal characteristics. Although the conventional calibration-based stereo image rectification method is simple, it has an opportunity to ...

Journal: :Nano letters 2014
Jia Zhu Kedar Hippalgaonkar Sheng Shen Kevin Wang Yohannes Abate Sangwook Lee Junqiao Wu Xiaobo Yin Arun Majumdar Xiang Zhang

Active heat flow control is essential for broad applications of heating, cooling, and energy conversion. Like electronic devices developed for the control of electric power, it is very desirable to develop advanced all-thermal solid-state devices that actively control heat flow without consuming other forms of energy. Here we demonstrate temperature-gated thermal rectification using vanadium di...

Journal: :Nanoscale 2016
Mickael L Perrin Elena Galán Rienk Eelkema Joseph M Thijssen Ferdinand Grozema Herre S J van der Zant

In the pursuit of down-sizing electronic components, the ultimate limit is the use of single molecules as functional devices. The first theoretical proposal of such a device, predicted more than four decades ago, is the seminal Aviram-Ratner rectifier that exploits the orbital structure of the molecule. The experimental realization of single-molecule rectifiers, however, has proven to be challe...

Journal: :Journal of chemical theory and computation 2015
Wendu Ding Matthieu Koepf Christopher Koenigsmann Arunabh Batra Latha Venkataraman Christian F A Negre Gary W Brudvig Robert H Crabtree Charles A Schmuttenmaer Victor S Batista

We report a systematic computational search of molecular frameworks for intrinsic rectification of electron transport. The screening of molecular rectifiers includes 52 molecules and conformers spanning over 9 series of structural motifs. N-Phenylbenzamide is found to be a promising framework with both suitable conductance and rectification properties. A targeted screening performed on 30 addit...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید