Results 1 to 10 of about 179,748 (217)

Stochastic impedance [PDF]

open access: yesPhysica A: Statistical Mechanics and its Applications, 2020
The concept of impedance, which characterises the current response to a periodical driving, is introduced in the context of stochastic transport. In particular, we calculate the impedance for an exactly solvable model, namely the stochastic transport of particles through a single-level quantum dot.
CLEUREN, Bart, PROESMANS, Karel
openaire   +4 more sources

Impedance scaling and impedance control [PDF]

open access: yesProceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167), 2002
When a machine becomes really large, such as the Very Large Hadron Collider (VLHC), of which the circumference could reach the order of megameters, beam instability could be an essential bottleneck. This paper studies the scaling of the instability threshold vs. machine size when the coupling impedance scales in a "normal" way.
Chou, W., Griffin, J.
openaire   +1 more source

Wake and impedance [PDF]

open access: yesAIP Conference Proceedings, 2001
Lecture presented at JAS'2000 Accelerator School On Frontiers Of Accelerator Technology: High Quality Beams, St.
openaire   +2 more sources

Scanning Impedance Microscopy: From Impedance Spectra to Impedance Images [PDF]

open access: yesMicroscopy Today, 2001
Abstract The properties and performance of electronic devices are crucially dependent on interface-related phenomena. The presence of interfaces can enable electronic device functionality (p-n diodes, solar cells); alternatively, non-functional interfaces can degrade device performance (ohmic vs. non-ohmic contacts).
Sergei V. Kalinin, Dawn A. Bonnell
openaire   +2 more sources

Implantable Impedance Plethysmography [PDF]

open access: yesSensors, 2014
We demonstrate by theory, as well as by ex vivo and in vivo measurements that impedance plethysmography, applied extravascularly directly on large arteries, is a viable method for monitoring various cardiovascular parameters, such as blood pressure, with high accuracy.
Michael Theodor   +9 more
openaire   +4 more sources

Bioelectrical Impedance Analysis [PDF]

open access: yesEuropean Journal of Clinical Nutrition, 2013
It is 50 years since Thomasett demonstrated the application of the measurement of the impedance of the human body to the estimation of total body water...
Ward, L. C., Müller, M. J.
openaire   +5 more sources

Impedance-matched hyperlens [PDF]

open access: yesOptics Letters, 2007
We propose an approach to optical imaging beyond the diffraction limit, based on transformation optics in concentric circular cylinder domains. The resulting systems allow image magnification and minimize reflection losses due to the impedance matching at the input or output boundaries.
Kildishev, Alexander V   +1 more
openaire   +4 more sources

Robot Perception of Impedance.

open access: yesJournal of the Robotics Society of Japan, 2003
This paper describes an algorithm for robot perception of impedance, by which motion-force relation of the robot's end-effector during arbitrary motion is analyzed on-line. Using this method, the impedance that constrains the robot's motion is estimated; the uncertainties of the estimates are evaluated; and discontinuous changes of the impedance are ...
Ryo Kikuuwe, Tsuneo Yoshikawa
openaire   +2 more sources

Impedance spectroscopy: Impedance spectroscopy of nanomaterials

open access: yes, 2022
Solid state impedance spectroscopy enables the various contributions to the resistive and capacitive properties of electronically inhomogeneous condensed matter to be deconvoluted and characterized separately. The different contributions arise from electronically distinct areas in the sample, which can in an ideal case be represented each by one ...
openaire   +2 more sources

Impeding and Unimpeding Gamma: The Principle of Impedance

open access: yes, 2000
We demonstrate that gamma (from the Lorentz transformation of the Special Theory of Relativity) acts as an impediment to velocity changes only when it occurs inside motion energy transfer relationships. We also examine whether or not gamma unimpeded velocity changes violate either the constancy of light or elementary causality.
Madore, David R., Hamilton, Gina
openaire   +2 more sources

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