نتایج جستجو برای: thin

تعداد نتایج: 127366  

Journal: :فیزیک زمین و فضا 0
هدی آراسته مؤسسه ژئوفیزیک دانشگاه تهران- کارشناس ارشد عبدالرحیم جواهریان مؤسسه ژئوفیزیک دانشگاه تهران- استاد

one of the most fundamental reservoir characteristics is the thickness. the analysis of thin bed tuning on seismic reflectivity has been studied extensively by wides (1973) and neidel and pogiaggliomi (1977), who discussed the limits of seismic resolution. during the past decade, the industry has developed a plethora of new attributes in studying thin beds by employing spectral decomposition (p...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1385

چکیده ندارد.

Journal: :journal of nanostructures 2012
a. bahari

the main impetus for our research is provided by the growing interest worldwide in ultra thin silicon dioxide on silicon based nano devices. the obvious need for better knowledge in the ultra thin gate silicon dioxides, is motivated both by interests in fundamental research and phenomenology as well as by interests in possible applications, which can be found with better fitting of experimental...

Journal: :journal of membrane science and research 0
iman khalilinejad membrane processes research laboratory (mprl), department of chemical engineering, amirkabir university of technology (tehran polytechnic), mahshahr campus, mahshahr, p.o. box 415, iran hamidreza sanaeepur membrane processes research laboratory (mprl), department of chemical engineering, amirkabir university of technology (tehran polytechnic), mahshahr campus, mahshahr, p.o. box 415, iran ali kargari membrane processes research laboratory (mprl), department of chemical engineering, amirkabir university of technology (tehran polytechnic), mahshahr campus, mahshahr, p.o. box 415, iran

in this work, novel thin film composite membranes (tfcs) of poly (ether-6-block amide) (pebax-1657) on a polyvinyl chloride (pvc) ultrafiltration membrane as support were prepared using inclined coating method for co2 separation. investigating the effects of top selective layer thickness formed by controlling the coating angle (15-60°) and polymer solution concentration (5-10 wt.%), and also, t...

Journal: :journal of agricultural science and technology 2012
j. h. lee h. j. kim j. w. rhim

vacuum drying of salicornia herbacea l. was performed at different drying temperatures (50, 60, 70, and 80c) to evaluate the drying characteristics and the effect of drying temperatures on the quality of salicornia. as the drying temperature increased, the drying time decreased significantly (p< 0.05). the drying rate decreased with decrease in moisture content and increase in drying time. on ...

Journal: :علوم 0
محمداسماعیل عظیم عراقی me azimaraghi دانشگاه خوارزمی صبح ناز ریاضی sn riazi دانشگاه آزاد سالار پورتیمور salar porteamor دانشگاه آزاد

in the present study, we investigate dc conduction mechanism of electron beam evaporated   bromoaluminium phthalocyanine (bralpc) thin films using aluminum and gold electrodes. the current-voltage characteristics of sandwich type device are evaluated for the temperature range 298-413k under dark conditions. it is observed that the current passing through the device is increased by increasing te...

Journal: :Asymptotic Analysis 2006
Yves Capdeboscq Michael Vogelius

In earlier work [8] we have derived a very general representation formula for the voltage perturbation caused by volumetrically small inhomogeneities in an otherwise known conductor. The ingredients of this formula are (1) a limiting probability measure, (2) a “background” fundamental solution, and (3) an “effective” polarization tensor. In [9] we proved optimal average bounds on the very essen...

Journal: :Nano letters 2017
X X Yu A Gulec A Yoon J M Zuo P W Voorhees L D Marks

We report direct observation of a "Pac-Man" like coarsening mechanism of a self-supporting thin film of nickel oxide. The ultrathin film has an intrinsic morphological instability due to surface stress leading to the development of local thicker regions at step edges. Density functional theory calculations and continuum modeling of the elastic instability support the model for the process.

Journal: :Journal of lipid research 1964
L WOLFMAN B A SACHS

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