نتایج جستجو برای: organicinorganic hybrid

تعداد نتایج: 190924  

Journal: :international journal of civil engineering 0
h. oucief m.f. habita b. redjel

in most cases, fiber reinforced self-compacting concrete (frscc) contains only one type of fiber. the use of two or more types of fibers in a suitable combination may potentially not only improve the overal properties of self-compacting concrete, but may also result in performance synergie. the combining of fibers, often called hybridization, is investigated in this paper for a cimentetious mat...

A. A. SHOKRI A. SHOKRI

In this paper, we introduce the new class of implicit L-stable generalized hybrid methods for the numerical solution of first order initial value problems. We generalize the hybrid methods with utilize ynv directly in the right hand side of classical hybrid methods. The numerical experimentation showed that our method is considerably more efficient compared to well known methods used for the n...

Composite propellers offer high damping characteristics and corrosion resistance when compared with metal propellers. But the design of a hybrid composite propeller with the same strength of metal propeller is the critical task. For this purpose, the present paper focusses on fluid-structure interaction analysis of hybrid composite propeller with Carbon/Epoxy, R-Glass/Epoxy and S2-Glass/Epoxy t...

Journal: :journal of membrane science and research 0
v.v. belousov a.a. baikov institute of metallurgy and materials, russian academy of sciences, 49 leninskii pr., 119991 moscow, russia s.v. fedorov a.a. baikov institute of metallurgy and materials, russian academy of sciences, 49 leninskii pr., 119991 moscow, russia i.v. kul`bakin a.a. baikov institute of metallurgy and materials, russian academy of sciences, 49 leninskii pr., 119991 moscow, russia

the hybrid molten/solid in2o3 - 30-48 wt.% bi2o3 oxide materials were studied with respect to their transport properties. the conductivities, oxygen ion transport numbers and oxygen permeation fluxes have been measured by using the four-probe dc, volumetric measurements of the faradaic efficiency and gas flow techniques, respectively. we show that the oxygen permeability of the hybrid molten/so...

Journal: :iranian chemical communication 0
soleyman hosseinzadeh department of chemical engineering, payame noor university, tehran, iran shahryar pashaei department of chemistry, payame noor university, tehran, i.r of iran. nazanin moludpoor department of chemical enginering, payame noor university, tehran, i.r of iran

a series of polystyrene hybrid nanocomposites have been fabricated with varying amounts of tio2 viz., 0, 0.5 and 1 % w/w along with 3% ts by in-situ polymerization method. the influence of surface modified tio2 nanoparticles on the thermal properties of ps matrix was examined using thermogravimetry and differential scanning calorimetry. thermal characteristics of the polystyrene/ts/tio2 hybrid ...

Journal: :journal of chemical and petroleum engineering 2015
babak mokhtarani hossein khormaei mohammad hasan amini hamid reza mortaheb

liquid membrane processes have attracted many interests in recent years for removal of heavy metals such as cadmium from industrial wastewaters. in this study, a modified hybrid liquid membrane system is introduced. the setup is worked by applying the water-insoluble dioctyl phthalate as the organic solvent. n-octanol and tetra butyl ammonium bromide are added to the organic phase to increase t...

ژورنال: :روش های هوشمند در صنعت برق 2010
شبنم پسته احمدرضا نقش نیلچی فرید شیخ الاسلام

تاکنون روش های سراسری متعددی برای حل مسئله طراحی مسیر پیشنهاد شده است که از آن میان روش های گراف پدیداری، دیاگرام ورونویی، درخت چهاروجهی و جبهه موج جایگاه ویژه ای دارند. در این مقاله با ترکیب این چهار روش در یک ساختار واحد، یک الگوریتم طراحی مسیر جدید به نام (hybrid-vqvw) hybrid-visibility-quadtree-voronoi-wavefront ارائه می شود. در این روش در هر فاصلة نمونه برداری پس از ساخت چهار مسیر سراسری ر...

قاسم‏پور, رقیه, ایرجی‏زاد, اعظم,

The WO3/MWNTs hybrid gas sensitive films were prepared by spin-coating on alumina substrate. The structure, morphology and chemical composition of the functionalized MWNTs and WO3/MWNTs hybrid films were studied by SEM, TEM, XRD, Raman, DLS and XPS methods. The MWCNT were initially functionalized (f-MWNTs). Dispersion and surface reactivity of MWNTs was improved because of oxygenate groups on M...

Conversion of fossil fuels to electrical power is the most popular method of electrical power generation. Due to the depletion of fossil fuels and the increase in air pollution, the necessity of using high efficiency power generation systems is increasing. High temperature fuel cells, such as solid oxide fuel cells (SOFC) and molten carbonate fuel cells (MCFC), have high efficiency. According t...

Journal: Journal of Nanoanalysis 2017
Kun Harismah Mahmoud Mirzaei Maryam Sadeghi Rezvan Baniasadi

Density functional theory (DFT) calculations were performed to investigate adsorptions of vitamin C (Vit) on the surface a fullerene structure (Ful) in gaseous and water–solvated systems. Two models of Vit including OVit and MVit were created based on the original structure of Vit for OVit and methylation of all hydroxyl groups for MVit. All singular and hybrid structures were optimized and the...

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