نتایج جستجو برای: consumption and production

تعداد نتایج: 16934192  

2010

In 2006, in order to meet the requirements of the Swiss economy and households, around 360 million tonnes of materials were extracted, consumed or displaced in Switzerland or abroad. This represents an increase of 17 % compared with 1990. On the other hand, the increasing sales of organic products in 2007 and 2008 give an indication in changes in household habits towards more sustainable behavior.

Journal: :journal of agricultural science and technology 2015
b khoshnevisan sh. rafiee j. iqbald sh. shamshirbande m. omid

in this study greenhouse tomato production was investigated from energy consumption and greenhouse gas (ghg) emission point of views. moreover, artificial neural networks (anns) and adaptive neuro-fuzzy inference systems (anfis) were employed to model energy consumption for greenhouse tomato production. total energy input and output were calculated as 1316.14 and 281.1 gj/ha. among the all ener...

Journal: :international journal of environmental research 2012
t. nasrabadi h.r. sharif vaghefi g.r. nabi bidhendi

due to shortage of precipitation and the spatial and periodical disparity of rainfalls, iran iscounted among the arid and semi-arid countries of the world, and therefore the water utilities have put thecontrol of consumption and efficient use of water high on their priorities. water consumption management isconsidered as a field of energy management, and the impacts of effective measure related...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

abstract this study was carried out to compare disinfecting effects of nanosilver with other feed disinfectants on layer hen performance, immune system, gastrointestinal microflora and intestinal morphology. total of 90 layers (lsl) were divided into five groups consisting: 1-control, 2- formalin (200 ppm), 3- formaycin (200 ppm), 4- nanosilver in drinking water (7.5 ppm) and 5-nanosilver in f...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
قادر دشتی دانشیار گروه اقتصاد کشاورزی دانشگاه تبریز فهیمه خاکسار کارشناس ارشد مدیریت کشاورزی دانشگاه تبریز محمد قهرمانزاده دانشیار گروه اقتصاد کشاورزی دانشگاه تبریز

usage of inputs is one of the most important factors affecting agricultural production variations. thus, in the evaluation of production function, it is reasonable to consider the effects of inputs usage on the production fluctuation. east azerbaijan province is one of the five major producing in iran and tabriz plain and the most important region of the province for onion production. the main ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده کشاورزی 1391

گل محمدی (r. damascena mill.)مهمترین گونه ای است که در تولید گلاب، عطر و اسانس، در صنعت عطرسازی و دارویی کاربرد دارد. با وجود اهمیت عطر گل محمدی، پژوهش های مولکولی و بیوشیمیایی عطر گل این گونه هنوز در مراحل ابتدایی است. در این پژوهش، ویژگی های مولکولی و فیزیولوژیکی تولید عطر در گل محمدی در آزمایش های مختلف مورد بررسی قرار گرفتند. در آزمایش اول، پژوهشی به منظور بررسی تنوع شیمیایی اسانس میان 44 ت...

Journal: ایمنی زیستی 2017
Fardis Nakhaei, Mehdi Iranajad,

Aluminium is the world’s second most-used metal after steel and the aluminium production industry is the largest, in volume of metal produced, in non-ferrous metal industry. In this study, results of the material flows (country and global scales) related to the production and use of aluminium and energy consumption in 1980 to 2012 were separately analysed. Also, overview of the current status o...

Biotechnology is a high technology that is bound to play an important role in the future world due to its wide range of applications in different parts of industry, agriculture, medicine, environment and so on. In our country special attention has been paid to biotechnology as a strategic technology. While the production and consumption of genetically modified organisms (GMO) products is witnes...

The net effects of switching from consumption taxation to inflation taxation on resource allocation and welfare crucially depend on production externalities. With elastic labor supply, raising inflation taxation decreases leisure, but increases the levels of real consumption, capital, and output. Moreover, this tax switch has two opposing effects on the level of real money balances: A positive ...

Journal: Iranian Economic Review 2015

I n addition to labor force and capital, energy plays a significant role in the production of commodities and services. Energy is the driving force of production activities. Therefore, it is an essential ingredient of growth and development. Results obtained from this paper show that the growth of oil products consumption has a positive effect on economic development via two channels: Firstly,...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید