نتایج جستجو برای: production technology

تعداد نتایج: 1041664  

Activities to reduce soil erosion, soil fertility and increasing agricultural production and finally crop income have considered fundamental in the implementation of sustainable agriculture in Iran. This research investigates the effects of no-till (NL) technology to reduce soil erosion and increasing agricultural income and eventually for achieving sustainability. Data were collected through q...

Journal: :مدلسازی اقتصادی 0
مهدی سالاریه دانشجوی دکتری اقتصاد کشاورزی دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران امیر محمدی نژاد استادیار گروه اقتصاد کشاورزی دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران رضا مقدسی دانشیار گروه اقتصاد کشاورزی دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران

the aim of this paper is to study the impacts of technological progress and efficiency change on the productivity growth of iran agriculture separated by provinces. the period of this study is from 2005-2014. first of all, the impacts of efficiency change and technology change were separated using dea and malmquist model. then, their impacts on productivity growth were studied. it was concluded...

Journal: :اقتصاد پولی مالی 0
مصطفی سلیمی فر امین حق نژاد محسن رحیمی

the present paper investigates the effect of production factors, including technology, physical capital and labour on the energy consumption intensity of iran. for this purpose, time series data during the period of (1974-2007) have been analyzed within cobb–douglas production function framework. the results of the study indicate that the technology and the physical capital have caused the aver...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - پژوهشکده مهندسی فرایند 1395

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران - دانشکده علوم 1370

تهیه ترکیب فسفرتری کلرید بااستفاده از واکنش فسفر سفید(زرد) و گاز کلر در فاز محلول و درمقیاس آزمایشگاهی موردمطالعه قرارگرفت .پس از انتخاب مناسبتر روش و انتخاب بهترین شرایط کوشش درجهت طراحی واحد نیمه صنعتی انجام شد و توانستیم دراین راستا به تولید 10 کیلوگرم درساعت باخلوص 99/5 درصد برسیم . abstract the preparation of phosphorous trichloride by the reaction of white phosphorous and chlorine gas in ...

R Feki

This paper investigates the performances of artificial neural networks approximation, the Translog and the Fourier flexible functional forms for the cost function, when different production technologies are used. Using simulated data bases, the author provides a comparison in terms of capability to reproduce input demands and in terms of the corresponding input elasticities of substitution esti...

H. Khanzadeh N. Ghavi Hossein-Zadeh, S. Ghovvati

Recently genetic studies have been revolutionized by next generation sequencing (NGS) technology, and it is expected that the use of this technology will largely eliminate defects in the methods of association studies. The NGS technology is becoming the premier tool in genetics. However, at the moment the use of this method is limited especially in the livestock due to high cost and computation...

Journal: :journal of pharmaceutical care 0
roxana sharifian department of health information technology, school of management and medical informatics, shiraz university of medical sciences, shiraz, iran. saeid ebrahimi department of health information technology, school of management and medical informatics, shiraz university of medical sciences, shiraz, iran. peivand bastani department of health service management, school of management and medical informatics, shiraz university of medical sciences, shiraz, iran.

according to the vital role of pharmaceutical industry in health care system, pharmaceutical supply chain security, standard production and distribution of the pharmaceutical products are of great importance for pharmaceutical companies. therefore, applying technology, especially radio frequency identification (rfid), is essential to achieve these goals. moreover, due to the importance of secur...

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