نتایج جستجو برای: energy value

تعداد نتایج: 1353237  

Journal: :The Journal of chemical physics 2012
Matthew Dennison Kristina Milinković Marjolein Dijkstra

We present the phase diagram of hard snowman-shaped particles calculated using Monte Carlo simulations and free energy calculations. The snowman particles consist of two hard spheres rigidly attached at their surfaces. We find a rich phase behavior with isotropic, plastic crystal, and aperiodic crystal phases. The crystalline phases found to be stable for a given sphere diameter ratio correspon...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان مرکزی - دانشکده علوم پزشکی اراک 1392

سنگ کلیه باتوجه به وضعیت اقتصادی واجتماعی جامعه جزء بیماریهای باشیوع بالارونده است.تفاوتهای جغرافیایی زیاددرشیوع سنگهای ادراری درکودکان بستگی به آب وهوا رژیم غذایی و فاکتورهای اقتصاداجتماعی دارد.تقریبا 7% از سنگهای ادراری درکودکان زیر16سال دیده میشود. تشکیل کریستالهای اسیداوریک، اگزالات کلسیم و سیستئین نیاز به اشباع موارد فوق در ادرار و تشکیل هسته های تشکیل دهنده سنگ می باشد. بعضی از مواد که ب...

Journal: :journal of agricultural science and technology 2012
f. shahbazi m. nazari galedar

the research was conducted in order to determine the bending stress, young’s modulus, shearing stress, and shearing energy of safflower stalk as a function of moisture content and stalk region. the bending forces were measured at different moisture contents and the bending stress and the young’s modulus were calculated from these data. for measuring the shear forces, the stalk specimens were se...

Journal: :journal of optoelectronical nano structures 0
sayed mohammad sadegh hashemi nassab department ofelectrical engineering, fasa branch, islamic azad university, fasa, iran. mohsen imanieh department ofelectrical engineering, fasa branch, islamic azad university, fasa, iran. abbas kamaly department ofelectrical engineering, fasa branch, islamic azad university, fasa, iran.

the main problemswith the use of fossil fuels is the restrictions on their access and the detrimental consequences of their use which causes a threat to human health and quality of life. consequently, the use of other energy sources has become necessary. renewable energy as a permanent and clean energy source is an answer to this problem. one such energy source includes photovoltaic solar energ...

Journal: :journal of agricultural science and technology 2012
r. pahlavan m. omid a. akram

this study was conducted to determine a relationship between energy input and yield in greenhouse basil production in esfahan province, iran. data were collected from 26 greenhouse basil producers through a face-to-face questionnaire. the data collected belonged to the production period of 2009–2010 with the following results obtained. a total energy input of 236,057 mj ha-1 was estimated to be...

Objective: In this study, we aimed to validate the accuracy of computed tomography-based attenuation correction (CTAC) using the bilinear scaling method.Methods: The measured attenuation coefficient (μm) was compared to a theoretical attenuation coefficient (μt ) using four different CT scanners and an RMI 467 phantom. The effective energy of the CT beam X-rays was calculated, using the aluminu...

Although the practical importance of investment analysis in long-term energy investments is well understood, choosing the proper method has always been a dilemma. In this regard, classic evaluation methods, with a history of almost a century, are mostly favored, but using them in the valuation of long-lasting energy projects has particular shortcomings, nevertheless. The drawbacks mainly stem f...

ژورنال: علوم آب و خاک 1998
سمیع, عبدالحسین , پوررضا, جواد ,

A total of adult leghorn roosters and 360 day-old broiler chicks were used in two completely randomized experiment to evaluate metabolizable energy (ME) and feeding value of faba beans in broiler rations. In a factorial arrangement with 10 treatments and 3 replicates chicks were fed isonitrogenous rations containing either 0, 10, 20 or 30 percent of raw, cooked or dehulled faba beans for 8 week...

Hamid Abdollah-Zargar, Hossein Ahamdi Danesh-Ashtiani

Utilization of fossil fuel for supplying of requires energy of desalination systems is common. On the other hand, solar energy is one of the high-grade energies in the world that can be found specifically in hot weather places. Therefore, utilization of solar energy for operation of desalination systems will reduce greenhouse gases and is a good alternative way. Common exergy analysis method (s...

Natural gas has an advantageous position compared to other energy carriers in policy making of energy consumption due to its many advantages, especially in terms of environmental indicators. In Iran, the industrial sector is considered as one of the important sectors of natural gas consumption. The main purpose of this paper is to investigate the relationship between natural gas prices and indu...

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