نتایج جستجو برای: physical and mechanical properties

تعداد نتایج: 17004998  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده برق و کامپیوتر 1392

abstract nowadaysphotovoltaic solar cells (pvs) areacknowledged the fastest growing energy technology in the word, however, they only account for only fraction of current global renewable energy capacity. it isrecognized that this incomplete market penetration has been largely a result of the technology’sexcessive cost. so researchers are trying to find innovative, economic way with theaim of ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
faranak mohammadkazemi kazem doosthoseini

in this study the effect of nano sized silica particles (nano-sio2) on the physical and mechanical properties of rice husk and old corrugated container (occ)-cement boards was investigated. modulus of rupture (mor), modulus of elasticity (moe), internal bonding strength (ib), density, water absorption and thickness swelling after 24 hours immersion in water and hardness were measured. results s...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
(pages 23-32) a. gohari ardabili m.b. habibi najafi m. h. haddad khodaparast

abstract in this study the possibility of utilizing date syrup as a sugar replacer in soft ice-cream was investigated. for this purpose control sample was formulated based on iranian ice- cream standard. data syrup which produced from third grade kabkab dates, replaced sucrose in four levels (25, 50, 75 and 100%). physical properties including overrun, viscosity and freezing point (drawing temp...

Journal: :تحقیقات مهندسی کشاورزی 0
روناک غلامی دانشجوی کارشناسی ارشد دانشگاه تبریز بابک قنبرزاده دانشیار گروه علوم و صنایع غذایی دانشکده کشاورزی دانشگاه تبریز جلال دهقان نیا استادیار گروه علوم و صنایع غذایی دانشکده کشاورزی دانشگاه تبریز علی اکبر انتظامی استاد دانشکده شیمی دانشگاه تبریز لیلا ابوالقاسمی فخری دانشجوی دکتری علوم و صنایع غذایی دانشکده کشاورزی دانشگاه تبریز

this study investigated the effect of different concentrations of nanocrystalline cellulose (ncc) on the physical properties of starch-ncc nanocomposites. the nanoparticle distribution in the polymer matrix was investigated using x-ray diffraction. the heat resistance and mechanical properties of the film were measured by differential scanning calorimetry and tensile testing. investigation of n...

Nanoindentation techniques are widely used for the study of nanomechanical properties of thin nanocomposite coatings. Theoretical concepts and practical use of nanoindentation method are summarized with reporting the applications of these tests in characterization of some particular thin nanocomposite hybrid coatings prepared by sol-gel process. The better mechanical properties can be obtained ...

Nanoindentation techniques are widely used for the study of nanomechanical properties of thin nanocomposite coatings. Theoretical concepts and practical use of nanoindentation method are summarized with reporting the applications of these tests in characterization of some particular thin nanocomposite hybrid coatings prepared by sol-gel process. The better mechanical properties can be obtained ...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
hamideh separdar ebrahim rahimi iman shahabi behzad aghabarari

introduction : one of the most important problems of synthetic packaging of materials had been the time consuming process of their decomposition. therefore, they have the potential to contaminate the environment. during the recent years, the above-mentioned problem has paved the way for developing biodegradable biopolymers. one group of these polymers is films and edible coatings. soy protein i...

Journal: :journal of physical & theoretical chemistry 2007
a.a. salari m. ghasemi kochameshgi a. aminifar

paper recycling in an increasingly environmentally conscious world is gaining importance. withrapid developments in deinking processes for the reuse of secondary fibers being made, therecycling process is become more and more efficient. this work investigated the effect ofchemical different treatments including h2o2 and naoh on repulping and flotation operationsduring the deinking of laser prin...

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