نتایج جستجو برای: conductance

تعداد نتایج: 37870  

Journal: :international journal of nano dimension 0
a. azari islamic azad university, tabriz branch, tabriz, iran. s. zabihi a. islamic azad university, tabriz branch, tabriz, iran. k. seyyedi.s islamic azad university, tabriz branch, tabriz, iran.

a noninteracting quantum-dot arrays side coupled to a quantum wire is studied. transport through the quantum wire is investigated by using a noninteracting anderson tunneling hamiltonian. the conductance at zero temperature develops an oscillating band with resonances and antiresonances due to constructive and destructive interference in the ballistic channel, respectively. moreover, we have fo...

2005
Zhenmin Lu John W. Radin Edgar L. Turcotte Richard Percy Eduardo Zeiger

Advanced lines of Pima cotton {Gossypium barbadense L.) bred for higher yield potential and heat resistance have higher stomatal conductance and smaller leaf areas than those of obsolete !ines. In controlled experiments, five commercial lines of Pima cotton having increasing lint yield and heat resistance showed a gradient of increasing stomatal conductance and decreasing leaf size. In field ex...

Journal: :The Journal of General Physiology 1958
Tomiyuki Hara

An apparatus was constructed in order to record continuously and simultaneously changes in extinction and electrical conductance of rhodopsin solutions. With this apparatus, changes in electrical conductance on exposing rhodopsin to light were investigated. On illumination solutions of rhodopsin revealed a conductance change so long as they preserved their photosensitivity. The conductance chan...

Journal: :The Journal of General Physiology 1969
R. C. Bean W. C. Shepherd H. Chan Joellen Eichner

Discrete fluctuations in conductance of lipid bilayer membranes may be observed during the initial stages of membrane interaction with EIM ("excitability inducing material"), during destruction of the EIM conductance by proteolysis, and during the potential-dependent transitions between low and high conductance states in the "excitable" membranes. The discrete conductance steps observed during ...

2012
D. Lombardozzi S. Levis G. Bonan J. P. Sparks

Plants exchange greenhouse gases carbon dioxide and water with the atmosphere through the processes of photosynthesis and transpiration, making them essential in climate regulation. Carbon dioxide and water exchange are typically coupled through the control of stomatal conductance, and the parameterization in many models often predict conductance based on photosynthesis values. Some environment...

2010
O. B. Vorobyev

Accurate approximations of the conductance and the conductance bandwidth of an electrically small antenna valid in resonant and antiresonant ranges were found. It was shown that the conductance bandwidth of an antenna tuned on maximal power of radiation is inversely proportional to the magnitude of the frequency derivative of the input impedance |Z ′(ωcd)| of the antenna at frequency of maximal...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2012
Tilman J Kispersky Jonathan S Caplan Eve Marder

We studied the effects of increased sodium conductance on firing rate and gain in two populations of conductance-based, single-compartment model neurons. The first population consisted of 1000 model neurons with differing values of seven voltage-dependent conductances. In many of these models, increasing the sodium conductance threefold unexpectedly reduced the firing rate and divisively scaled...

Journal: :Physical chemistry chemical physics : PCCP 2015
M Taghipoor A Bertsch Ph Renaud

Nanochannel conductance measurements are commonly performed to characterize nanofluidic devices Theoretical analysis and experimental investigations imply that the nanochannel conductance does not follow the macro-scale models. It is generally accepted that the conductance of nanochannels deviates from the bulk and trend to a constant value at low concentrations. In this work, we present an imp...

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