نتایج جستجو برای: rod like

تعداد نتایج: 673695  

Journal: :Scripta Materialia 2022

We present the first observations of a large-scale coexistence between rod-like and lamellar eutectic growth patterns during directional solidification alloy. In situ experiments with real-time optical monitoring were carried out under microgravity onboard International Space Station (ISS). used transparent succinonitrile-d,camphor alloy that ordinarily forms patterns. At low velocity, short la...

Journal: :Neuron 2004
Alapakkam P. Sampath Fred Rieke

A threshold-like nonlinearity in signal transfer from mouse rod photoreceptors to rod bipolar cells dramatically improves the absolute sensitivity of the rod signals. The work described here reaches three conclusions about the mechanisms generating this nonlinearity. (1) The nonlinearity is caused primarily by saturation of the feedforward rod-to-rod bipolar synapse and not by feedback from hor...

2009
Jian Chang JunJun Pan Jian J. Zhang

This paper outlines a framework of modelling slender rod-like structure of biological tissues in both global and local scales. Volumetric discretization of a rod-like structure is expensive in computation and therefore is not ideal for applications where real-time performance is essential. In our approach, the Cosserat rod model is introduced to capture the global shape changes, which models th...

Journal: :Soft matter 2016
Chang-Young Park Deborah K Fygenson Omar A Saleh

Rod-like particles form solutions of technological and biological importance. In particular, biofilaments such as actin and microtubules are known to form a variety of phases, both in vivo and in vitro, whose appearance can be controlled by depletion, confinement, and electrostatic interactions. Here, we utilize DNA nanotubes to undertake a comprehensive study of the effects of those interactio...

Journal: :international journal of electrical and electronics engineering 0
shaghayegh nikzad department of energy engineering and physics, amirkabir university of technology (tehran polytechnic), hafez avenue, tehran, iran houshyar noshad amirkabir university of technology

electrostatic potential as well as the local volume charge density are computed for a macromolecule by solving the poisson-boltzmann equation (pbe) using the finite element method (fem). as a verification, our numerical results for a one dimensional pbe, which corresponds to an infinite-length macromolecule, are compared with the existing analytical solution and good agreement is found. as a ma...

Bi2Mn2O7 nano-powders were synthesized via a stoichiometric 1:1 Bi:Mn molar ratio hydrothermal method at 180 °C for 48 h in a 1M NaOH aqueous solution; and solid state method, using Bi(NO3)3.5H2O and MnO2 as raw materials. The synthesized materials were characterized by powder X-ray diffraction (PXRD) technique. Also, the rietveld analysis was done in FullProf in profile matching mode. It was f...

Journal: :Bone 2005
L J van Ruijven E B W Giesen L Mulder M Farella T M G J van Eijden

Bone loss may affect the structure of cancellous bone. But its effect on trabeculae with different characteristics, like rods and plates, is not accurately known. This study analyzes the effect of bone loss on individual rod-like and plate-like trabeculae. 94 specimens were obtained from mandibular condyles from both dentate and edentate humans and scanned with a micro-CT scanner. The bone volu...

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