نتایج جستجو برای: concentration number c n
تعداد نتایج: 3046968 فیلتر نتایج به سال:
Abstract Identifying geological characteristics such as rock types and fractures is an important step in fractured reservoirs’ modeling developing oil gas fields. The productivity index (PI) essential parameter for this purpose. There are different methods separating identifying fractures, including simple statistical complex fractal based on the spatial structure of data. In study, areas were ...
Background and Objectives: Acrylamide (ACR) is a known carcinogenic chemical agent found in some foods at considerably high concentration. The aim of this study was to investigate the protective effects of vitamin C as an antioxidant on kidney tissue in rats treated with ACR. Methods: Twenty female Wistar rats (200-220 grams) were divided into 4 groups (n=5) of control group, ACR group, vita...
carbon dioxide (co2) concentration of the global atmosphere has increased during the last decades. increasing global atmospheric co2 concentrations are expected to influence on plants. coleus is an ornamental plants, that is due to its attractive foliage are considered. in order to evolution of high co2 concentration effects on rooting. morphological and anatomical traits in two coleus spices (...
rested on sociocultural theory (sct), this study attempted to examine the effect of written corrective feedback (wcf) followed by producing written languaging on developing writing accuracy over new tasks. to this aim, two intact iranian efl classes at the low-intermediate level were randomly assigned to two experimental groups: direct (n = 25) and indirect (n = 25). both groups wrote on a numb...
Solvent-free radiofrequency (RF) nitrogen plasma treatment was applied to incorporate atoms in relatively high concentration. Graphene oxide (GO) and two reduced GOs of different O-content were used as target substrates reveal the influence functional groups decorating graphene lattice on quantity quality incorporation. Despite oxygen content samples no N–O bonds develop but three kinds N–C ver...
هدف از این مطالعه طراحی یک روش کلی برای سنتز یک سری از کمپلکس های دو هسته ای متقارن و نامتقارن سیکلومتاله شده پلاتین (ii) بوده که دارای یک لیگاند پل زن bis(diphenylphosphino)methane, dppm, است. از واکنش cis-[pt(ar)2(sme2)2] ، که در آن para-anisole (p-a) یا ar= para-tolyl (p-t)، با یک اکی والان از لیگاند های c^n ، که benzo[h]quinoline (bhq) یاc^n= phenylpyridine (ppy) ، در استون محصول [pt(ar)(c^...
The research has been done for assessment of effects of different concentrations of Indole-3-Butyric Acid (IBA) on rhizogenesis of scions of C. Phlomidis in 2010. The research has been done on Randomized Complete-blocks for five replications and three treatments with zero, 2000ppm and 3000pmm concentration. Different characters such as number of root of each scion, length of root, length of ne...
The research has been done for assessment of effects of different concentrations of Indole-3-Butyric Acid (IBA) on rhizogenesis of scions of C. Phlomidis in 2010. The research has been done on Randomized Complete-blocks for five replications and three treatments with zero, 2000ppm and 3000pmm concentration. Different characters such as number of root of each scion, length of root, length of ne...
We study the low-energy states of Kondo alloys as a function of the magnetic impurity concentration per site x and the conduction electron average site occupation n(c). Using two complementary approaches, the mean-field coherent potential approximation and the strong-coupling limit, we identify and characterize two different Fermi-liquid regimes. We propose that both regimes are separated by a ...
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