نتایج جستجو برای: silk composite films were prepared and after processing

تعداد نتایج: 17156855  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده علوم انسانی 1392

the present study is an attempt to investigate the potential impact of inspirational quotes on improving english abstract vocabulary recall. to achieve this goal, a multiple choice language proficiency test of 60 items including vocabulary and grammar component was administered to a sample of 63 second-semester male and female students whose age ranged between 17 to 22 and they were studying en...

Journal: :The journal of physical chemistry. B 2009
Don Keun Lee Hyun Gil Cha Umapada Pal Young Soo Kang

Photochromic polymeric films were prepared by doping photochromic dye spironaphthooxazine into polymer resin gels such as polyurethane, vinyl copolymer, and copolymer of vinyl and nitorocellulose at different concentrations. All of the composite films show normal photochromism. The kinetics of the photochromism/decoloration in the films were quantified by fitting biexponential equations to thei...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...

2016
Zhang Hu Pengzhi Hong Mingneng Liao Songzhi Kong Na Huang Chunyan Ou Sidong Li

Nowadays, there is a growing interest to develop biodegradable functional composite materials for food packaging and biomedicine applications from renewable sources. Some composite films were prepared by the casting method using chitosan (CS) and agarose (AG) in different mass ratios. The composite films were analyzed for physical-chemical-mechanical properties including tensile strength (TS), ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی 1392

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده فیزیک 1390

in this thesis, barium ferrite nano particles were prepared by sol-gel method. their structural and magnetic properties of samples have been investigated using thermo gravimetric analysis (tg-dta), x-ray powder diffractometer (xrd), fourier transform infrared (ftir), scanning electron microscopy (sem), field emission scanning electron microscopy (fesem), ac susceptometer, vibrating sample magne...

Journal: :Physical chemistry chemical physics : PCCP 2014
A Subrahmanyam A Rajakumar Md Rakibuddin T Paul Ramesh M Raveendra Kiran D Shankari K Chandrasekhar

The present work describes in detail the photocatalytic properties of controlled titanium doped indium tin oxide (Ti/TiO2-ITO) composite thin films prepared by DC magnetron sputtering and their applicability to developing a bio-medical lung assistive device. The catalytic films of various thicknesses (namely, C1, C2, C3 and C4) were characterized using surface imaging (SEM), X-ray analyses (XRD...

2017
Gang Tao Rui Cai Yejing Wang Kai Song Pengchao Guo Ping Zhao Hua Zuo Huawei He

Bionanocomposite packaging materials have a bright future for a broad range of applications in the food and biomedical industries. Antimicrobial packaging is one of the bionanocomposite packaging materials. Silver nanoparticle (AgNP) is one of the most attractive antimicrobial agents for its broad spectrum of antimicrobial activity against microorganisms. However, the traditional method of prep...

Journal: :jundishapur journal of natural pharmaceutical products 0
neda bavarsad nanotechnology research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of pharmaceutics, school of pharmacy, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; ahvaz jundishapur university of medical sciences, ahvaz, ir iran. tel: +98-6133738378, fax: +98-6133738381 maryam kouchak nanotechnology research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of pharmaceutics, school of pharmacy, ahvaz jundishapur university of medical sciences, ahvaz, ir iran marzieh varmaziar department of pharmaceutics, school of pharmacy, ahvaz jundishapur university of medical sciences, ahvaz, ir iran batool sadeghi-nejad department of mycology, school of medicine, abadan university of medical sciences, abadan, ir iran

results presence of soy pc improved mechanical properties, lowered swelling ratio and increased stability of the films. solubilizing activity of phospholipid resulted in higher flux of drug release from formulation containing higher amount of soy pc. antifungal efficacy of formulations was confirmed against two species of dermatophytes in vitro. conclusions this topical composite film had the p...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1388

abstract the present study was conducted to examine the effect of proficiency on students interaction while carrying out the grammar-based task(s) in collaboration. in particular, the study examines whether the level of proficiency affects the learners’ focus of attention to grammatical and lexical features. the study takes a further step and examines whether there is any difference in the use...

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