نتایج جستجو برای: metabolizabel energy

تعداد نتایج: 666269  

Journal: :تحقیقات مهندسی کشاورزی 0
حمیدرضا گازر استادیار پژوهش موسسه تحقیقات فنی و مهندسی کشاورزی سعید مینایی دانشیار دانشکده کشاورزی دانشگاه تربیت مدرس.

the canola drying process was investigated using three laboratory scale dryers connected to a computer which continuously recorded the drying processes of each unit. a completely randomized design (crd) with three replications was used for the statistical analysis. the effect of temperature (40°, 50°, 60°c) and air velocity (1, 2 m/s) on the drying kinetics of a monolayer were studied. the effe...

Journal: :journal of nanostructures 2014
o. rahmani m. h. noroozi moghaddam

piezoelectric nanobeams having circular, rectangular and hexagonal cross-sections are synthesized and used in various nano structures; however, piezoelectric nanobeams with hexagonal cross-sections have not been studied in detail. in particular, the physical mechanisms of the surface effect and the role of surface stress, surface elasticity and surface piezoelectricity have not been discussed t...

Journal: :بوم شناسی کشاورزی 0
عباداله مویدی شهرکی مجید جامی الاحمدی محمدعلی بهدانی

in order to perform each component of agricultural practices, its plan should be rationalized economically and technically. in a study for recognition patterns of energy inputs and outputs in saffron fields of southern khorasan, iran, during a five years exploitation period, two questionnaires were prepared, one for the first cultivation year, and another for crop management and harvest during ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده علوم 1388

چگالی تراز هسته ای نقش مهمی در محاسبات فیزیک رآکتور، محاسبات مدل هسته ای، آستروفیزیک و غیره ایفا می کند. از طرفی ژرمانیوم نیز کاربردهای فراوانی در زمینه های مختلف مانند آشکارسازهای هسته ای نیمه هادی، الکترونیک، طیف نماهای مادون قرمز و شبکه های فیبر نوری دارد. در این تحقیق با استفاده از نتایج تجربی بررسی چگالی ترازهای هسته ای ژرمانیوم]1[ و با استفاده از فرمول بت برای مدل گاز فرمی بک شیفت، پارا...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی 1391

the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...

Journal: :transactions on combinatorics 2014
ran gu fei huang xueliang li

let $g$ be a simple graph with vertex set $v(g) = {v_1, v_2,ldots, v_n}$ and edge set $e(g) = {e_1, e_2,ldots , e_m}$. similar tothe randi'c matrix, here we introduce the randi'c incidence matrixof a graph $g$, denoted by $i_r(g)$, which is defined as the$ntimes m$ matrix whose $(i, j)$-entry is $(d_i)^{-frac{1}{2}}$ if$v_i$ is incident to $e_j$ and $0$ otherwise. naturally, therandi'c incidenc...

Journal: :تولیدات دامی 0
سیدجواد حسینی واشان استادیار تغذیه طیور، گروه علوم دامی، دانشگاه بیرجند، بیرجند - ایران طاهره غزنوی دانشجوی کارشناسی ارشد پرورش و مدیریت تولید طیور، گروه علوم دامی، دانشگاه بیرجند، بیرجند - ایران

the present experiment was conducted to determine metabolizable energy of pomegranate peel and pulp by adult cockerels. the pomegranate peel and pulp samples were gathered from three industries. this study had two experiments. each experiment was done in a completely randomized design with 4 treatments and 4 replicate (1 cockerel each). the cockerels fed conventional addition method (cam). the ...

Journal: :تحقیقات اقتصادی 0
غلامعلی شرزه ای دانشیار دانشکده اقتصاد دانشگاه تهران سید منصور خلیلی عراقی استاد دانشکده اقتصاد دانشگاه تهران سجاد برخورداری استادیار دانشکده اقتصاد دانشگاه تهران

abstractthe reform of energy subsidies has affected economic growth, as a result of household and firms’ behavior. however, despite the energy consumption and economic growth decrease in the short run, it is expected that economic growth will increase as a result of an adjustment in economic agents’ behavior over the mid- and long-terms. as is appropriate with these changes, energy consumption ...

Journal: :international journal of agricultural management and development 2013
zoltán bujdosó csaba patkós tibor kovács zsolt radics

the future of biomass energy in the global energy system depends on many major factors, among others on the attitude of society in rural areas to the biomass energy and the renewable energy resources. biomass energy plays increasing role in rural areas with its contribution to the self sufficiency of people in the countryside. the paper deals with the analysis the opportunities of utilization o...

Journal: :international journal of agricultural management and development 2015
fakher kardoni majid jami-al ahmadi mohammad reza bakhshi

wheat is the dominant cereal crop constituting the first staple food in iran. this paper studies the energy consumption patterns and the relationship between energy inputs and yield for wheat production in iranian agriculture during the period 1986 – 2008. the results indicated that total energy inputs in irrigated and dryland wheat production increased from 29.01 and 9.81 gj ha-1 in 1986 to 44...

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