نتایج جستجو برای: different behavior
تعداد نتایج: 2271209 فیلتر نتایج به سال:
this study presents the electric behavior of sandwich devices based on porous silicon (ps) thin films with au/ps/si/cu structure when the material’s surface is exposed to different gases. ps thin films were fabricated by the electrochemical anodization method of si–c (100) substrates with resistivity 1.4-2.6 ωcm. samples were anodized in a solution of hf (48%), c2h5oh (99.98%) and distilled wat...
abstract: the present thesis includes ; one preface and 11speeches , that each speech considered in different researches . the prefact part , studied grammer back ground , the first speech considered a brief description about grammatical credits . the second speech considered the different typs of sentences , from structure and meaning points of view . the third speech considered the verb es...
THE HYPOTHESIS, This survey compares the sexual behavior, the high risk sexual behavior and self-harm behavior of narcotic substance users (opium, crack, and heroin) with stimulants substance uses (ice, cocaine). METHOD, This survey is comparative-causative post test. The sample consisted of 265 substance abusers as intact subjects from different camps in Tehran who filled he sexual behavior q...
Graptolite–argillites (black shales) are studied as potential source of different metals. In the processing technologies graptolite–argillites, a preceding thermal treatment is often applied. this study, behavior Estonian graptolite–argillite (GA) samples from Toolse, Sillamäe and Pakri areas were using Setaram Labsys Evo 1600 thermoanalyzer coupled with Pfeiffer OmniStar Mass Spectrometer. The...
Fabricating cementitious composites with sustainable materials represents an essential aspect in the recent developments construction section. On other hand, using fibers within binding matrix to enhance its strength properties is a familiar application and holds significant importance research community. In this investigation, Geopolymer which based on silica fume (micro-silica) blast furnace ...
This study investigated the engineering properties of a rubber–bentonite mixture under different salt solution concentrations, mass ratios, and consolidation pressures. In addition, effects solute ion concentrations on compression index samples were compared. The results showed that coefficient could be reduced effectively by increasing weight percentage rubber without being affected solution. ...
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