搜索结果: 31-45 共查到“理学 membrane”相关记录104条 . 查询时间(0.125 秒)
Distribution of archaeal and bacterial tetraether membrane lipids in rhizosphere-root systems in soils and their implication for paleoclimate assessment
GDGT rhizoplanes roots revised index of methylation of branched tetraethers estimated temperature
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2017/4/11
Branched and isoprenoidal glycerol dialkyl glycerol tetraethers (GDGT) are abundant in soils, but little is known
about the presence of branched GDGT in rhizosphere-root systems versus bulk soils, an...
Optimal fold symmetry of LH2 rings on a photosynthetic membrane
LH2 rings a photosynthetic membrane
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2014/9/24
An intriguing observation of photosynthetic light-harvesting systems is theN-fold symmetry of light-harvesting complex 2 (LH2) of purple bacteria. We calculate the optimal rotational configuration of ...
Chaotic behavior of ion exchange phenomena in polymer gel electrolytes through irradiated polymeric membrane
Porous membrane ion channels polymer gel electrolyte non linear dynamics ion exchange
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2012/4/26
A desktop experiment has been done to show the nonlinearity in the I-V characteristics of an ion conducting electrochemical micro-system. Its chaotic dynamics is being reported for the first time whic...
Membrane-mediated protein-protein interaction: A Monte Carlo study
Membrane-mediated protein-protein interaction Monte Carlo study Biological Physics
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2012/4/20
We investigate membrane-mediated interactions between transmembrane proteins using coarse-grained models. We compare the effective potential of mean force (PMF) between two proteins, which are always ...
Extracellular electrical signals in a neuron-surface junction: model of heterogeneous membrane conductivity
Neuron extracellular electrical signals cell-surface junction transmembrane current
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2012/2/28
Signals recorded from neurons with extracellular planar sensors have a wide range of waveforms and amplitudes. This variety is a result of different physical conditions affecting the ion currents thro...
Realization of an optomechanical interface between ultracold atoms and a membrane
optomechanical interface ultracold atoms membrane Quantum Gases
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2011/8/17
Abstract: We have realized a hybrid optomechanical system by coupling ultracold atoms to a micromechanical membrane. The atoms are trapped in an optical lattice, which is formed by retro-reflection of...
Dynamical membrane curvature instability controlled by intermonolayer friction
Dynamical membrane curvature intermonolayer friction phospholipid membrane
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2011/8/16
Abstract: We study a dynamical curvature instability caused by a local chemical modification of a phospholipid membrane. In our experiments, a basic solution is microinjected close to a giant unilamel...
Treatment and Recycling of Wastewater by Submerged Hollow Fiber Membrane
Membrane Bioreactor Separation Fouling Hollow Fiber Membrane
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2013/3/8
In this study, the effects of experimental conditions including the MBR equipped novel device and different operating modes on permeate flux were studied. The results show that the MBR equipped novel ...
Quantum charged rigid membrane
Quantum charged rigid membrane
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2011/3/2
The early Dirac proposal to model the electron as a charged membrane is reviewed. A rigidity term, instead of the natural membrane tension, involving linearly the extrinsic curvature of the worldvolum...
The numerical analysis of enzyme membrane thickness on the response of amperometric biosensor
amperometric biosensor reaction-diffusion Michaelis-Menten kinetics
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2010/9/25
This paper presents a one-dimensional-in-space mathematical model of an amperometric biosensor. The model is based on the reaction-diffusion equations containing a non-linear term related to Michaelis...
Discrimination of Membrane Antigen Affinity by B cells Requires Dominance of Kinetic Proofreading over Serial Triggering
Membrane Antigen Affinity B cells Requires Dominance
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2011/1/5
B cells receptor (BCR) signaling in response to membrane-bound antigen increases with antigen affinity, a process known as affinity discrimination. We use computational modeling to show that B cell af...
Four-dimensional Yang-Mills theory with a three-dimensional fermion membrane
Four-dimensional Yang-Mills theory three-dimensional fermion membrane
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2010/12/27
We study the four-dimensional Yang-Mills theory in the presence of a three-dimensional membrane of fermions by lattice Monte Carlo simulations. We analyze the phase structure of this theory at finite...
The Fluid/Gravity Correspondence: a new perspective on the Membrane Paradigm
The Fluid/Gravity Correspondence the Membrane Paradigm
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2010/12/27
This talk gives an overview of the recently-formulated Fluid/Gravity correspondence, which was developed in the context of gauge/gravity duality. Mathematically, it posits that Einstein's equations (...
Matrix Model for membrane and dynamics of D-Particles in a curved space-time geometry and presence of form fields
Matrix Model membrane dynamics D-Particles
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2010/12/23
We study dynamics of a membrane and its matrix regularisation. We present the matrix regularisation for a membrane propagating in a curved space-time geometry in the presence of an arbitrary 3-form fi...
Four-dimensional Yang-Mills theory with a three-dimensional fermion membrane
Four-dimensional Yang-Mills theory three-dimensional fermion membrane
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2011/1/7
We study the four-dimensional Yang-Mills theory in the presence of a three-dimensional membrane of fermions by lattice Monte Carlo simulations. We analyze the phase structure of this theory at finite ...