نتایج جستجو برای: mechanical properties

تعداد نتایج: 1027336  

Journal: :journal of chemical health risks 0
m. rojhan biopolymer research group, food science and technology division, agriculture department, damghan branch, islamic azad university, damghan, semnan, iran l. nouri biopolymer research group, food science and technology division, agriculture department, damghan branch, islamic azad university, damghan, semnan, iran

starch is found in abundance in nature and it is one of the raw materials used for food packaging because of the low price, biodegradability, good mechanical and barrier properties. the recycling ability of coating materials was significantly increased by using edible films and coating in comparison to traditional packaging and it could be an alternative for synthetic films. in this research, t...

Journal: :international journal of nano dimension 0
z. zhang department of biomedical engineering, tampere university, tampere, finland. b. fazeli department of biomedical engineering, tampere university, tampere, finland.

hydroxyapatite is a biocompatible ceramic and reinforcement for bone implantations. seva/hap composite content hap filler with difference particle sizes were designed. mechanical tests like tensile modulus, uts, strain at break and biodegradation were investigated. results illustrated much increase tensile modulus of composites content hap nano powders ratio to micro powders. also uts analysis ...

Journal: :علوم و تکنولوژی پلیمر 0
محمود مهرداد شکریه سید احسان سنبلستان

nanocomposite materials have recently attracted increasing interests in the field of modelling. finite element modelling can be used for computation of bulk properties of polymer/clay nanocomposites. in this study, by   considering the structure of a nano-composite material, a quasi real model is proposed. the model has been used to predict the elastic constants by selection of suitable element...

Journal: :علوم و تکنولوژی پلیمر 0
علیرضا شاکری تقی طبرسا علیرضا طبری

0

Journal: :international journal of research in materials science 0
zahra sadat seyedraoufi school of metallurgy and materials engineering, iran university of science and technology shamsodin mirdamadi school of metallurgy and materials engineering, iran university of science and technology

due to good biocompatibility, corrosion and mechanical properties, magnesium (mg) is considered promising degradable material for orthopedic applications. in this work, mg-mgznx (x= 1, 2, 3 and 4) nanocomposites scaffolds with different porosities were synthesized via powder metallurgy method. the microstructure, composition, in vitro corrosion and mechanical properties of porous magnesium-zinc...

Journal: :iranian journal of pharmaceutical sciences 0
majid javanmard department of food science, institute of chemical technologies, iranian research organization for science and technology (irost), tehran, iran

food packaging extensively uses plastic films and containers of petroleum-based polymers for their excellent functional properties and competitive price. plastic packaging has become a central focus of waste reduction efforts, particularly in aesthetic terms of damage to flora and fauna. presently, consumers require greater quality and longer shelf lives for their foodstuffs, while they demand ...

ژورنال: مواد پرانرژی 2016

Mechanical properties and burning rate are very important parameters for solid propellants. In this work, the effects of quality and quantity of stabilizers as AkarditeII, 2-NDPA and CentraliteI on the Mechanical properties and burning rate of double-based is investigated. The results showed that, by CentraliteI increased mechanical properties of propellant and for AkarditeII and 2-NDPA stabili...

Journal: :ماشین های کشاورزی 0
محمد قاسمی مهدی خجسته پور محمدحسین آق خانی

evaluation of mechanical and electrical properties of agricultural products plays an important role in equipment design and optimizing post-harvest operations. among the crops, tomato and its products are the major processing industries in the world and its economic importance is increasing. considering the importance of the quality and various post harvesting uses of tomato, the evaluation of ...

Journal: :تحقیقات مهندسی کشاورزی 0
محمد جعفری مدرس مجتمع آموزش علمی کاربردی جهاد کشاورزی لرستان علی رجبی پور دانشیار دانشکده مهندسی و فناوری کشاورزی دانشگاه تهران حسین مبلی استاد دانشکده مهندسی و فناوری کشاورزی دانشگاه تهران

crops and agricultural products are subject to natural loading during growth. different mechanical forces are also exerted on them during harvest. one product, sugar cane, experiences large shear forces are during harvest. an examination of the crop properties and machine parameters of sugar cane are necessary to develop appropriate cutting tools and the optimization and design of harvesting ma...

Journal: :علوم و تکنولوژی پلیمر 0
قاسم نادری محمدحسین بهشتی محسن بابامحمدی

nanocomposites based on phenolic resol and novolac resins and cloisite 30b were prepared. different kinds of phenolic resins and clay content were studied with respect to the morphology and mechanical properties of the polymer silicate layers. the phenolic resins, namely resol, novolac and their mixture and four different percentages of clay contents, 0.5, 1, 2 and 5 wt% have been considered. x...

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