نتایج جستجو برای: effect temperature

تعداد نتایج: 2010050  

پایان نامه :دانشگاه امام رضا علیه اسلام - دانشکده ادبیات و علوم انسانی 1393

this thesis is about the effect of self-confidence and educational motivation on oral translation quality.

Journal: :فرآوری و نگهداری مواد غذایی 0
مرضیه رئیسی دانشگاه علوم کشاورزی و منایع طبیعی گرگان محمد قربانی دانشگاه علوم کشاورزی و منابع طبیعی گرگان مهدی کاشانی نژاد دانشگاه علوم کشاورزی و منابع طبیعی گرگان علیرضا صادقی ماهونک دانشگاه علوم کشاورزی و منابع طبیعی گرگان

background and objectives: tree nuts and their oils contain bioactive materials which have vital roles in improving human’s health. degradation and decreasing the quality of the nuts especially in almond which have high fat is related to the oxidation. the quality of stored almond depends mainly on the kernel moisture and fat , storage temperature, relative humidity, oxygen level, type of packa...

Journal: :international journal of advanced design and manufacturing technology 0
mehdi nazri amirhosein behravesh payman shahi

this paper presents an investigation on the effect of temperature and raw material on microstructure of fine cellular foam used as the insulation of coaxial cables. a set up was prepared and used to produce fine cellular foamed insulation. as the physical  blowing agent, butane was used. the effect of temperature on the microstructure of polyethylene (pe) was worth to note. at high temperature,...

Journal: :international journal of advanced biological and biomedical research 2013
morad shaban

the physiological process of germination depends on several environmental factors such as temperature, water potential, light, nutrients and smoke. water and temperature are determinant factors for seed germination. both factors can, separately or jointly, affect the germination percentage and germination rate. the effect of temperature on germination and water potential on germination canoften...

Journal: :حفاظت گیاهان 0
سهرابی سهرابی راشد محصل راشد محصل نصیری محلاتی نصیری محلاتی موسوی موسوی

abstract r. ficaria is an invasive perennial and tuberous roots weed. the most important means of its reproduction and dispersion are tubers. in order to study the effect of droughty and freezing on germination of lesser celandine tubers, two experiments were conducted at weed science laboratory of faculty of agriculture ferdowsi university of mashhad in 2008. the experiment was a completely ra...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

one of the most commonly used techniques to reduce the corrosion rate of rebar in concrete is addition substances named corrosion inhibitors into the concrete. corrosion inhibitor is chemical compounds that were added to concrete to prevent corrosion of steel in concrete. sodium nitrate is a type of anodic inhibitors that this study investigatesthe effect of this inhibitor on the properties of ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1391

this study sought to examine the effect of cooperative game on iranian students achievements in english alphabet learning. cooperative games are games, in which players or teams work together towards a common goal without defeating someone. the methodology used in this study was experimental. the population of the study was 60 female students from the grade one in secondary school in tabriz, ir...

Journal: :مهندسی بیوسیستم ایران 0
حامد بیکی دانشگاه صنعتی اصفهان ناصر همدمی دانشیار گروه علوم و صنایع غذایی دانشکده کشاورزی دانشگاه صنعتی اصفهان

in order to investigate the effect of temperature and time of blanching process on the generation and extraction of reducing sugars and kinetics of color changes during blanching, the potato strips packaged in the polyethylene (hdpe with 10 micron thickness) film or without polyethylene packaging, were immersed in distilled water at temperature range of 50, 60, 70, 80 and 90 ºc for 120 minutes....

Journal: :international journal of optics and photonics 0
zahra danesh kaftroudi department of engineering sciences, faculty of technology and engineering east of guilan, university of guilan, 44891-63157, rudsar-vajargah, iran esfandiar rajaei department of physics, university of guilan, 41335-1914, rasht, iran

in this study, we have theoretically investigated the effect of electron stopper layer on internal temperature distribution of high performance vertical cavity surface-emitting laser emitting at 1305 nm.  simulation software pics3d, which self-consistently combines the 3d simulation of carrier transport, self-heating, gain computation and wave-guiding, was used. simulation results show that cha...

Journal: :international journal of optics and photonics 0
mehdi hosseini shiraz farrokh sarreshtedari tehran

considering a temperature dependent two-level quantum system, we have numerically solved the landau-zener transition problem. the method includes the incorporation of temperature effect as a thermal noise added schrödinger equation for the construction of the hamiltonian. here, the obtained results which describe the changes in the system including the quantum states and the transition probabil...

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