نتایج جستجو برای: bnnts fiber

تعداد نتایج: 130402  

ژورنال: سلامت و محیط زیست 2016
فرهنگ دهقان, سمیه, مداح, بزرگمهر, گلبابایی, فریده,

Background and Objectives: The goal of the present study was to develop nanofibrous media filters containing MgO nanoparticles for future application in removing particles from gas stream. Materials and Methods: Electrospun nanofibers were fabricated using experimental design prepared by Response Surface Methodology. Optimization of electrospinning parameters was conducted for achieving the ...

حسینی اصفهانی, فیروزه, حسین‌پور نیازی, سمیه, سهراب, گلبن, عزیزی, فریدون, میرمیران, پروین,

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In this study, effect of MAPE (maleic anhydride polyethylene) as the compatibilizer on the mechanical properties of wood-flour polyethylene composites has been investigated by using Dynamic Mechanical Analysis (DMA). Composites were made at 25% and 50% by weight fiber contents and 1% and 2% compatibilizer respectively. Controls were also made at the same fiber contents without the compatibilize...

Virtually all fibers exhibit some dimensional and structural irregularities. These include the conventional textile fibers, the high-performance brittle fibers and even the newly developed nano-fibers. In recent years, we have systematically examined the effect of fiber dimensional irregularities on the mechanical behavior of the irregular fibers. This paper extends our research to include the ...

Journal: :تحقیقات مهندسی کشاورزی 0
منا ایوز دانشجوی کارشناسی ارشد گروه علوم و صنایع غذایی، دانشگاه آزاد اسلامی واحد سبزوار لاله مشرف استادیار بخش تحقیقات فنی و مهندسی کشاورزی، مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان

the importance of dietary fiber in normal and therapeutic diets has been acknowledged by numerous authors in recent years. dietary fiber has different physiological effects on human health. the recommended daily intake of dietary fiber is about 30 g, but less than this is often consumed. wheat bran is an excellent source of dietary fiber and is used to fortify foods. the nutritional benefits of...

Measurement of stress transients generated by a 400ns pulsed HF laser in an infrared fluoride glass fiber has been made using fast time – response piezoelectric film transducer. Acoustic signals up to 12 mV with frequencies ranging in megahertz generated by 21 mJ laser pulse when passed through the fiber axis in the linear region. It is shown that useful information such as onset of non - linea...

Journal: :علوم و تکنولوژی پلیمر 0
میرحمیدرضا قریشی صدیقه سلطانی قاسم نادری

natural rubber/fiber composites were prepared in a laboratory mixer using new and waste short nylon fiber by a one-step mixing process. fiber loading and bonding agent effects on the microstructure and mechanical properties of the composites were studied. the cure characteristics of composites were investigated by using rheometer. cure and scorching times of the composites decreased while maxim...

A new simple and reliable method for rapid and selective extraction and determination of trace levels of Zn(II) ion is developed. Zn(II) ions are adsorbed quantitatively during passage of aqueous samples through PET-AA/AAm nano fiber modified. Almost all matrix elements were found to pass through the nano fiber to drain. Modified Poly (ethylene terephthalate)-grafted-Acrylic acid/Acryl amide Na...

A new simple and reliable method for rapid and selective extraction and determination of trace levels of Zn(II) ion is developed. Zn(II) ions are adsorbed quantitatively during passage of aqueous samples through PET-AA/AAm nano fiber modified. Almost all matrix elements were found to pass through the nano fiber to drain. Modified Poly (ethylene terephthalate)-grafted-Acrylic acid/Acryl amide Na...

Journal: :applied biotechnology reports 0
maryam behnam applied biotechnology research center, baqiyatallah university of medical sciences, tehran, iran seyed javad davarpanah ramin karimian

cotton is one of the most important crops in the world and increasing cotton yield is the main goal in the cotton industry. one important factor for crop improvement is increasing produced fibers by each developing seed. it is very interesting to manipulate fiber properties such as length, micronaire, color and strength which necessitate cotton ovule culture.  ovule culture is used as a tool to...

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