نتایج جستجو برای: resin content

تعداد نتایج: 444740  

In this work, nanocrystalline Fe85Si10Ni5 soft magnetic powders were prepared by mechanical alloying and subsequent annealing to reduce the internal stresses and lattice strains. The powders were mixed with phenolic resin and warm pressed to produce nanostructured soft magnetic composites. The effect of annealing time and temperature on the crystalline structure, microstructure and magnetic pro...

Journal: :journal of agricultural science and technology 2013
f. rezaei arjomand a. a. enayati a. h. lohrasebi s. r. ghaffarian anbaran s. j. hashemi

in production of tissue paper, the adhesion of a liquid adhesive creping aid, compound polymer, as creping aids on the yankee dryer surface was investigated. a compound polymer was prepared based on mixing ratio of poly (amideamine)-epichlorohydrin resin (pae) as an adhesive agent, polyvinyl alcohol (pva) as a modifier agent, and cationic fatty acid (cfa) and ethylene glycol (eg) as release age...

Journal: :Journal of Physics: Conference Series 2022

Abstract The work is devoted to the development of methods for determining elemental and isotopic composition spent ion-exchange resin, industrial waste environmental objects using an inductively coupled plasma mass spectrometer analyzing specific samples determine content noble rare metals in technological materials, natural with application developed techniques. This article determines resin ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1390

the present research study attempted to find out the extent to which two pre-task activities of “glossary of unknown vocabulary items” and “content related support” assisted efl language learners with their performance on listening comprehension questions across two different proficiency levels (low and high). data for this study were obtained from a total of 120 language learners, female and m...

Journal: :Coatings 2022

Resin/fiber composites were prepared by the FDM printing technology. The effects of arrangements, types (carbon, glass, and Kevlar), volume fraction fibers on shear tensile properties resin 3D-printed are investigated in this paper. experimental results show that addition continuous increases strength FDM-3D-printed composites, but will not keep increasing with an increase fiber content. As con...

Journal: :Molecules 2011
Shan Zhao Jie Yuan Liu Si Yu Chen Ling Ling Shi Yu Jun Liu Chao Ma

Spiny burs of Castanea mollissima Blume (Chinese chestnut) are usually discarded as industrial waste during post-harvesting processing. The objective of this study was to establish an extraction and isolation procedure for tannins from chestnut burs, and to assess their potential antioxidant activity. Aqueous ethanol solution was used as extraction solvent, and HPD 100 macroporous resin column ...

2011
Hema Sharma Datta Shankar Kumar Mitra Bhushan Patwardhan

The traditional Indian medicine-Ayurveda, describes various herbs, fats, oils and minerals with anti-aging as well as wound healing properties. With aging, numerous changes occur in skin, including decrease in tissue cell regeneration, decrease in collagen content, loss of skin elasticity and mechanical strength. We prepared five topical anti-aging formulations using cow ghee, flax seed oil, Ph...

The anthocyanins of Siahe Sardasht variety (Vitis vinifera L. var. S.S.) were extracted from freezed samples and were purified by adsorption on cation-exchange resin column. Individual pigments were separated by TLC on cellulose plates. Monomeric anthocyanin content that was determined by pH-differential, was 1740.11±3.58 mgL?1 (based on malvidin 3-glucose). Five major pigments were identified ...

Journal: :Microstructures 2022

Materials with tunable negative thermal expansion (NTE) are highly demanded in various functional devices. La(Fe, Si)13-based compounds promising NTE materials due to their outstanding properties. However, poor mechanical properties and related short service life restrict practical applications. In this work, epoxy resin positive is used synthesize La-Fe-Si/resin composites. The of composites c...

2012
Yong Zhu

In the present work, an attempt has been made to understand the feasibility of using UHF technique for identification of any corona discharges/ arcing in insulating material due to water droplets. The sensors of broadband type are useful for identification of such discharges. It is realised that arcing initiated by liquid droplet radiates UHF signals in the entire bandwidth up to 2 GHz. The fre...

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