نتایج جستجو برای: prepared from either raw or polymeric treated fibers

تعداد نتایج: 7599374  

Preparation of nano-microfibers from biopolymers (e.g., proteins and polysaccharides) by using electrospinning technology has been considered by researchers due to the formation of fibers or particles at the nano and micrometer scales, high porosity level, adjustable dewatering behavior, and special mechanical behavior. These products can be used in the microencapsulation of bioactive compounds...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1390

writing as a productive skill requires practice in the basic sub-skills of vocabulary and grammar. in fact, grammar has been viewed as the core of programs in writing classes to help the students put the elements of sentence together and combine sentences of specific lengths to come up with an error-free work of art. conceptualizing l2 writing in this way introduces writing as a product and enc...

2017
Numaira Obaid Mark T. Kortschot Mohini Sain

Although it has been experimentally shown that the addition of short-fibers slows the stress relaxation process in composites, the underlying phenomenon is complex and not well understood. Previous studies have proposed that fibers slow the relaxation process by either hindering the movement of nearby polymeric chains or by creating additional covalent bonds at the fiber-matrix interface that m...

Journal: :Energies 2021

Swine manure mono-digestion results in relatively low methane productivity due to the degradation rate of its solid fraction (manure fibers), and high ammonia water content. The aqueous soaking (AAS) pretreatment fibers has been proposed for overcoming these limitations. In this study, continuous anaerobic digestion (AD) mixed with optimally AAS-treated was compared AD untreated fibers. Due lab...

Journal: Poultry Science Journal 2016
Houshmand M Sinaei Kh

The effects of raw and sodium hydrogen carbonate-treated oak acorn were evaluated on broiler chicken performance and cecal flora. A total of 340 one-day-old broiler chicks were used in a completely randomized design with five experimental treatments and four replicates with 17 birds each. A corn-based diet served as the control and four treatment groups were diets containing 20 or 25% raw or tr...

Journal: :Journal of textile science and technology 2021

The demand for natural fibers has always been high due to their unique characteristics like strength, lightweight, availability, bio-degradability, etc. In every phase of life, from clothing technical textiles, are used. Water absorption is considered really important in many aspects, e.g., Sportech, Medtech, Geotech, This work analyses water raw and alkali-treated cotton, arecas, pineapple lea...

Journal: :International journal of pharmaceutics 2000
D McPhail L Tetley C Dufes I F Uchegbu

Drug delivery systems comprising vesicles prepared from one amphiphile encapsulating vesicles prepared from a second amphiphile have not been prepared previously due to a tendency of the bilayer components of the different vesicles to mix during preparation. Recently we have developed polymeric vesicles using the new polymer-palmitoyl glycol chitosan and cholesterol in a 2:1 weight ratio. These...

2016
Piotr Dziugan Maria Balcerek Michal J. Binczarski Dorota Kregiel Marcin Kucner Alina Kunicka-Styczynska Katarzyna Pielech-Przybylska Krzysztof Smigielski Izabela A. Witonska

BACKGROUND Intermediates from processing sugar beets are considered an attractive feedstock for ethanol fermentation due to their high fermentable sugar content. In particular, medium prepared from raw sugar beet juice seems to be suitable for use in fermentation processes, but it is microbiologically unstable and requires sterilization. RESULTS This study investigates the effect of ozone tre...

Journal: :SPE polymers 2021

Abstract As efforts to replace nonsustainable plastics increase, biocomposites from cellulose fibers and biodegradable polymers like poly(ε‐caprolactone) (PCL) are promising candidates. The necessary adhesion between matrix can be achieved by grafting polymeric chains onto the fibers. Herein, we report of PCL Abaca (AFs), a one‐pot method obtain composite containing grafted fiber free PCL, char...

Journal: :آب و خاک 0
حسین پور حسین پور حق نیا حق نیا علیزاده علیزاده فتوت فتوت

abstract population increase, limitation of water resources, and increasing volume of municipal wastewater, has caused the necessity of wastewater reuse. application of wastewater on soils seems to be the most economical method of its disposal and by percolating wastewater through the soil, its chemical quality is improved. for this purpose, a greenhouse experiment was carried out with polyethy...

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