نتایج جستجو برای: combination of particles

تعداد نتایج: 21182551  

Higher solid contents (20 % and 40 %) nanocomposites of poly (styrene-co-butyl acrylate) including higher content of Cloisite 30B (7 wt% and 10 wt %) were prepared via miniemulsion polymerization. Stability of the final latexes proved outstanding combination of polymerization procedure and surfactants. Morphological studies revealed by TEM, SAX and XRD showed three structures of core-shell, arm...

Background: Due to the increase in the strains of antibiotic-resistant bacteria, it is necessary to obtain effective herbal compounds and nanocapsules synthesized from plant extracts to eliminate these strains. Objective: The present research study was conducted to examine the antibacterial effects of Cornus mass extract and its synthesized nano-capsules on the bacterial strains resistant to an...

Journal: :journal of medical microbiology and infectious diseases 0
mahdi salimi mohamadreza mahzonieh

introduction: the purpose of this study was formulation and preparation of a proper culture medium for saccharomyces cerevisiae var. boulardii with molasses and animal serum. methods: a fully-crossed factorial design contain 5%, 10% and 20% of molasses (m) with 0, 1% and 5% animal serum (s) was used in this study. the ph of all culture medias were adjusted to 5.6 with acetic acid. the seed was ...

A. Sobhani F. Sargolzaei-Aval M.H. Heydari M.R. Arab S.A . Sarani

Background: In several conditions we have face cranial bone defects. Reconstruction of these defects remains one of the most challenging problems encountered by craniofacial surgeons. Objective: To evaluate bone repair in cranial bone defects by use of an implant made of octacalcium phosphate in combination with bone matrix gelatin (OCP/BMG). Methods: We used 40, 5–6-week-old male Sprague-Dawle...

Journal: :J. Symb. Log. 2007
Assaf Hasson Ehud Hrushovski

We construct a strongly minimal set which is not a finite cover of one with DMP. We also prove that for a strongly minimal theory T generic automorphisms exist iff T has DMP, thus proving a conjecture of Kikyo and

Journal: :journal of nanostructures 2013
m. mirzataheri

higher solid contents (20 % and 40 %) nanocomposites of poly (styrene-co-butyl acrylate) including higher content of cloisite 30b (7 wt% and 10 wt %) were prepared via miniemulsion polymerization. stability of the final latexes proved outstanding combination of polymerization procedure and surfactants. morphological studies revealed by tem, sax and xrd showed three structures of core-shell, arm...

Journal: :علوم و تکنولوژی پلیمر 0
غلامرضا پیرچراغی سعید پورمهدیان مهدی وطن خواه

the effects of temperature, time and the strategy of prepolymerization were studied on the morphology of polypropylene particles. propylene polymerization was carried out in slurry phase using 4th generation of ziegler-natta catalyst, cyclohexylmethyl dimethoxysilane as external electron donor, and triethyl aluminum as co-catalyst. prepolymerizations were carried out based on two strategies: is...

پایان نامه :دانشگاه تربیت معلم - تبریز - دانشکده ادبیات 1389

الملخّص الحنین إلی الوطن، کان من الموضوعات الأساسیّه منذ أزمنه قدیمه فی الأدب العربی. فی العصور الماضیه کان یبین الشعراء تذکاراتهم الجیّده، و الحنین إلی الحبیبه ، و القبیله، و الأطلال و الدمن بتحسّر فی أشعارهم. توجد نماذج منها فی أشعار إمرء القیس و عنتره و... . راج هذا النوع من الحنین فی أشعار الشعراء فی العصر الأموی و العباسی کثیراً بسبب الفتوحات و الهجره. نحن شاهدنا آثاراَ کثیره کـ«الحنین إلی الأو...

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