نتایج جستجو برای: production technology

تعداد نتایج: 1041664  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده کشاورزی 1394

with the increasing population and the need for more food, as well as with the development of science and technology, human approach to unnatural and often chemical inputs to increase agricultural production has been a great expansion and problems such as increased cancers, chronic diseases has created environmental pollution. implementation of organic organic is a solution to these problems . ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان همدان - دانشکده ادبیات و علوم انسانی 1390

abstract this study is an attempt to determine the effect of nano- technology education on science lesson for fifth grade in primary school in the city of kermanshah. this research is experimental and is conducted in the from of pre-test and post- test for the control group. an achievement test was administered to determine the rate of learning in the students. the research is an applied one. ...

2011
Elizabeth Dobson Rosie Flewitt Karen Littleton Dorothy Miell

This paper presents research from an ongoing study analyzing the co-creative practice of two undergraduate studio based music composers working with two peers from dance and video production. Whilst empirical research has explored joint creativity and group working processes within and across performing arts disciplines (including music), situations that bring undergraduate studio based compose...

Journal: :int. journal of mining & geo-engineering 2014
shamseddin vahabi abolghasem mahdavi jafar ebadi

adopting a policy and deciding on long-term investment in the mining industry by a government orprivate sector actors depends strongly on the ability to predict the scarcity of mineral reserves. changein scarcity of mineral reserves is a function of several technological and non-technological factors.among them, change in technology is the most significant factor affecting scarcity. this paper ...

Journal: :international journal of energy and environmental engineering 2011
signe kjelstrup eivind johannessen audun røsjorde

the method of entropy production minimization for finding energy efficient paths of operation of process equipment is first presented using an instructive example with optimal control theory. with refer-ence to the earlier investigations, the researchers present some design rules that relate to the designs’ en-tropy production. minimum entropy production is not obtained in special cases, not ge...

Journal: :journal of modern processes in manufacturing and production 2013
siyavash khaledan hadi shirouyehzad

production planning is performed through diverse methods according to the type of the system it is structured upon. one of the most important steps before production planning is to determine which system best fits the firm, and how the facilities should be designed. both job-shop and group-technology systems have their own cons and pros, each of which is suitable to a specific kind of factory. ...

, , Babaiie, Niloofar, esmaeel nia, ali asghar,

In this study, the impact of technological improvement and depletion in upstream sector on the average cost of oil and gas production in Iran is studied in 1967-2017. For this purpose, global technology diffusion trend is calculated, so five variables that have had the most effect on global upstream is considered. Using acquired trend for technology and taking other related determinants into ac...

Journal: :Korean Chemical Engineering Research 2011

This study examined the adoption prospects and challenges of rice-cum-fish production technology among rice and fish farmers in selected States in southern Nigeria (Delta, Edo, Lagos and Ondo States). Using questionnaire, data was sought from 720 sampled rice and fish farmers in the selected States. The data were analysed using descriptive statistics, logit regression. Results showed that more ...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
ژیلا دانشور عامری استادیار گروه مدیریت و توسعه کشاورزی دانشگاه تهران ندا آخوندان دانشجوی دکتری اقتصاد کشاورزی و منابع طبیعی دانشگاه دیویس آمریکا

development in the production of agricultural products can take place in two ways: 1) increasing the inputs, which due to limitations in resources is possible only up to a specified level. the second possibility is to increase the productivity of the units by making use of new technologies. technology is defined as, substituting new ways of production for the old ones to increase production per...

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