نتایج جستجو برای: circular micro

تعداد نتایج: 181893  

Journal: :The Journal of Cell Biology 1972
R. Tanguay K. D. Chaudhary

The buoyant densities of the nuclear and mitochondrial DNA from the thoracic muscles of Schistocerca gregaria were found to be 1 702 and 1.689 g/cm(3), respectively, corresponding to guanine plus cytosine (G + C) content of 42.2 and 30% A preliminary treatment of the mitochondrial pellet with DNase (25 degrees C, 20 min) is necessary to eliminate the contaminating nuclear DNA. The mitochondrial...

Journal: :Nanotechnology 2009
E Haro-Poniatowski J C Alonso-Huitrón C Acosta-Zepeda M C Acosta-García N Batina

Quasi-percolated nanostructured silver thin films are used as the starting morphology for inducing simultaneously changes in shape and ordering effects by laser irradiation. The complex fingered nanostructures are transformed into nanospheres which in turn are arranged in micro-circular patterns when irradiated through a pinhole. These transformations are characterized by transmission electron ...

Journal: :Optics express 2012
Nirmal Mazumder Jianjun Qiu Matthew R Foreman Carlos Macías Romero Chih-Wei Hu Han-Ruei Tsai Peter Török Fu-Jen Kao

We developed a four-channel photon counting based Stokes-polarimeter for spatial characterization of polarization effects in second harmonic generation (SHG). We have implemented a calibration technique allowing quantitative measurement of polarization parameters, such as the degree of polarization (DOP), degree of linear polarization (DOLP), degree of circular polarization (DOCP), as well as a...

2002
Christian H. Heiss Frank J. Stadermann

During post-flight inspection by the manufacturer of the CMX coverglass of the HST solar cells, circular shaped features of unknown origin were discovered. These socalled "droplets" have also been found on samples of the HST and EURECA solar arrays which were sent to the Technical University of Darmstadt for evaluation purposes. They were chemically characterized by electron probe micro analysi...

Journal: :Biomicrofluidics 2012
Siddharth Deshpande Thomas Pfohl

We present a straightforward microfluidics system to achieve step-by-step reaction sequences in a diffusion-controlled manner in quasi two-dimensional micro-confinements. We demonstrate the hierarchical self-organization of actin (actin monomers-entangled networks of filaments-networks of bundles) in a reversible fashion by tuning the [Formula: see text] ion concentration in the system. We show...

2013
A. Laliotis

Miniature concave hollows, made by wet etching silicon through a circular mask, can be used as mirror substrates for building optical micro-cavities on a chip. In this paper we investigate how ICP polishing improves both shape and roughness of the mirror substrates. We characterise the evolution of the surfaces during the ICP polishing using white-light optical profilometry and atomic force mic...

Journal: :international economics studies 0
sadegh bakhtiri

abstract:the general perception of islamic finance is that it prohibits the practice of paying and receiving interest, but islamicfinance is much broader than interest rate prohibition. islamic financial services can be viewed as a set of financialservices which are diversified based on the needs of society.since in the iranian economy most of the enterprises are micro and/or small, micro finan...

Journal: :iranian journal of hydrogen & fuel cell 2015
elham omidbakhsh amiri

a micro-channel heat exchanger reactor with different micro-baffle shapes has been studied numerically. governing equations were solved base on the finite volume method with fluent software. in upper section, oxidation reaction of methanol was occurred and in lower section, steam reforming of methanol was done. two sections were separated with solid part which played as heat exchanger and trans...

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