نتایج جستجو برای: rectification

تعداد نتایج: 4550  

Journal: :Physical review 2023

Quantized transport is a powerful probe of topological phases, and metals are topologically classified by the Euler characteristic Fermi sea. Here, authors demonstrate analytically numerically that 2D metal proximitized Josephson $\ensuremath{\pi}$ junction exhibits rectification for current along junction. They introduce rectified nonlocal conductance show it quantized sea topology. InAs-based...

Journal: :Analytical chemistry 2015
Han Wang Vishal V R Nandigana Kyoo Dong Jo Narayana R Aluru Aaron T Timperman

The current rectification factor can be tailored by changing the degree of asymmetry between the fluid baths on opposite sides of a nanocapillary membrane (NCM). A symmetric device with symmetric fluid baths connected to opposite sides of the NCM did not rectify ionic current; while a NCM connected between fluid baths with a 32-fold difference in cross-sectional area produced a rectification fa...

2004
Harley T. Kurata Thierry Rose Gildas Loussouarn Stefan Herlitze Decha Enkvetchakul Colin G. Nichols Thomas Baukrowitz

Polyamines cause inward rectification of (Kir) K channels, but the mechanism is controversial. We employed scanning mutagenesis of Kir6.2, and a structural series of blocking diamines, to combinatorially examine the role of both channel and blocker charges. We find that introduced glutamates at any pore-facing residue in the inner cavity, up to and including the entrance to the selectivity filt...

Journal: :EURASIP J. Image and Video Processing 2017
Chengtao Cai Xiangyu Weng Bing Fan Qidan Zhu

Omnidirectional stereo vision systems have been widely used as primary vision sensors in intelligent robot 3D measurement tasks, which require stereo calibration and rectification. Current stereo calibration and rectification methods suffer from complex calculations or a lack of accuracy. This paper establishes a simple and effective equivalency between an omnidirectional stereo vision system a...

Journal: :CoRR 2017
Dingfu Zhou Yuchao Dai Hongdong Li

Large field-of-view fisheye lens cameras have attracted more and more researchers’ attention in the field of robotics. However, there does not exist a convenient off-the-shelf stereo rectification approach which can be applied directly to fisheye stereo rig. One obvious drawback of existing methods is that the resampling distortion (which is defined as the loss of pixels due to under-sampling a...

2007
Klaus Häming Gabriele Peters

This paper addresses the topic of image rectification, a widely used technique in 3D-reconstruction and stereo vision. The most popular algorithm uses a projective transformation to map the epipoles of the images to infinity. This algorithm fails whenever an epipole lies inside an image. To overcome this drawback, a rectification scheme known as polar rectification can be used. This, however, f...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2014
Gabriel T Landi E Novais Mário J de Oliveira Dragi Karevski

Thermal rectification is the phenomenon by which the flux of heat depends on the direction of the flow. It has attracted much interest in recent years due to the possibility of devising thermal diodes. In this paper, we consider the rectification phenomenon in the quantum XXZ chain subject to an inhomogeneous field. The chain is driven out of equilibrium by the contact at its boundaries with tw...

Journal: :Chemical science 2017
Li Qiu Yanxi Zhang Theodorus L Krijger Xinkai Qiu Patrick Van't Hof Jan C Hummelen Ryan C Chiechi

This paper describes the rectification of current through molecular junctions comprising self-assembled monolayers of decanethiolate through the incorporation of C60 fullerene moieties bearing undecanethiol groups in junctions using eutectic Ga-In (EGaIn) and Au conducting probe AFM (CP-AFM) top-contacts. The degree of rectification increases with increasing exposure of the decanethiolate monol...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1987
C A Vandenberg

The mechanism of rectification of the inwardly rectifying potassium channel was examined with single-channel recording techniques in isolated ventricular myocytes from adult guinea pig heart. Inward, or anomalous, rectification describes the property that potassium (K) current can enter the cell at potentials negative to the potassium equilibrium potential, EK, more readily than it can leave th...

Journal: :CoRR 2017
James Pritts Zuzana Kukelova Viktor Larsson Ondrej Chum

This paper introduces the first minimal solvers that jointly solve for affine-rectification and radial lens distortion from coplanar repeated patterns. Even with imagery from moderately distorted lenses, plane rectification using the pinhole camera model is inaccurate or invalid. The proposed solvers incorporate lens distortion into the camera model and extend accurate rectification to wide-ang...

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