نتایج جستجو برای: pan coefficient

تعداد نتایج: 197057  

تهیه داربست­هایی با خواص مناسب جهت کشت و رشد سلول‌های مختلف یکی از اهداف مهم مهندسی بافت تلقی می­شود. پلیمرهای زیست‌سازگار از جمله پلی­اکریلونیتریل حجم عمده­ای از مطالعات را به‌خود اختصاص داده­اند. در این پژوهش، به‌منظور اصلاح سطح پلی‌اکریلونیتریل (PAN) و کامپوزیت­های حاصل از آن با درصدهای مختلف از چارچوب فلز-آلی آهن(III)، PAN/x%Fe-MOF، از پلاسمای اکسیژن استفاده شده است. شیمی سطح این ترکیبات به...

Journal: :jundishapur journal of natural pharmaceutical products 0
azar dokht khosravi health research institute, infectious and tropical diseases research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of microbiology, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran ali mohammadian arvand international division, ahvaz jundishapour university of medical sciences, ahvaz, ir iran; arvand international division, ahvaz jundishapour university of medical sciences, ahvaz, ir iran. tel: +98-6313335361, fax: +98-6313335362

conclusions this study represented an increasing rate of mdr p. aeruginosa in burn and wound samples. efflux mexab genes were detected in all mdr and pdr strains. the p. aeruginosa strain isolated from burn cases showed higher drug resistance and pdr resistance was only noted in a burn sample. materials and methods one-hundred and fifty p. aeruginosa were isolated from burn and wound infections...

2006
Manish Anand Jason Flinn

In this paper, we present PAN-on-Demand, a self-organizing multi-radio system that balances performance and energy concerns by scaling the structure of the network to match the demands of applications. Since current mobile devices ship with multiple radios, PAN-on-Demand can improve performance and extend battery lifetime by switching between different wireless interfaces such as Bluetooth and ...

2015

The purpose of this work was to develop a practical scale-up model for a solvent-based pan-coating process. scale up of adsorption column Practical scale-up rules to determine. ABSTRACT: Although significant progress had been made in developing general scale-up rules for an aqueous pan-coating process, there. Practical scale-up rules to determine the key parameters pan load, pan speed, spray ra...

Journal: :فصلنامه علمی اکوفیزیولوژی گیاهان زراعی 0

to evaluate the effect of drought stress and foliar application of ascorbic acid on the growth and yield parameters of two varieties of sunflower pilot plant in the province of alborz as a split factorial in a randomized complete block design with four replications and treatments include: water stress (s) in three levels (s1) 70 mm evaporation from pan class a, (s2) 110 mm evaporation from pan ...

ژورنال: :سنجش و ایمنی پرتو 0
رضا صابری reza saberi end of north karegar st, tehran, iranانتهای امیرآباد،تهران ایران سازمان انرژی اتمی علی تخت اردشیر ali takht ardeshir end of north karegar st, tehran, iranانتهای امیرآباد،تهران ایران سازمان انرژی اتمی حسین حسینی نسب hossein hosseininasab end of north karegar st, tehran, iranانتهای امیرآباد،تهران ایران سازمان انرژی اتمی

این پژوهش دربرگیرنده روش نوینی جهت سنتز گرانول­های کامپوزیتی می­باشد. عمده استفاده از این نوع گرانول­های کامپوزیتی در زمینه جذب عناصر نامطلوب از آب­های روان یا پسماندها و در نتیجه رفع آلودگی محیطی می­باشد. یکی از عمده­ترین نوع عناصر نامطلوب در پسماندهای مایع، سزیم بوده که منشأ بسیاری از آلودگی­های زیست محیطی را تشکیل می­دهد. گرانول جدید سنتز شده mno2-pan می­باشد. در ادامه پژوهش مورفولوژی و ساخت...

2012
Riham R. Mohamed Rania S. Seoudi Magdy. W. Sabaa

Blend hydrogels composed of carboxymethyl chitosan (CMCh) and poly (acrylonitrile) (PAN) were synthesized via crosslinking method. Several analyses were made to investigate both physical and thermal properties of CMCh/PAN hydrogels like; FTIR, scanning electron microscope, XRD and thermogravimetric analysis (TGA). TGA results showed that CMCh/PAN hydrogels are thermally more stable than CMCh an...

Journal: :journal of physical & theoretical chemistry 2007
m. banimahd keivani m. aghaie r. ansari k. zare h. aghaiel

practical applications of conducting polymers such as polyaniline as membranes are particulary limitedbecause of their poor mechanical properties. however by mixing polyaniline with some conventional insulatingpolymers such as nylon and preparation composite films through solvent casting or blending, it seems to be asuitable way in order to increase the mechanical properties of the conducting p...

2016
Penghong Liu Shaohua Wu Yue Zhang Hongnan Zhang Xiaohong Qin

Highly orientated polypyrrole (PPy)-coated polyacrylonitrile (PAN) (PPy-PAN) nanofiber yarn was prepared with an electrospinning technique and in-situ chemical polymerization. The morphology and chemical structure of PPy-PAN nanofiber yarn was characterized by scanning electron microscopy (SEM), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and fou...

2010
VIOLETA FLORINA ANGHELINA ION V. POPESCU DAN UNGUREANU

Polyacrylonitryle (PAN) fibers are used on a large scale in textile industry but, some sorts of PAN fibers are valuable precursors for specific carbon fiber (CF) due to their best fitness to the purpose e.g. for high strength CF or for active CF. The application of PAN as precursors of CF is based on its specific structure and texture. Thus, the properties of PAN base CF strongly depend on PAN ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید