نتایج جستجو برای: knowledge of gas consumption
تعداد نتایج: 21236035 فیلتر نتایج به سال:
arguably, the natural gas transmission pipeline infrastructure in iran represents one of the largest andmost complex mechanical systems in the world. the optimization of large gas trunk lines known asigat results in reduced fuel consumption or higher capability and improves pipeline operation. in thecurrent study, a single-objective optimization was conducted for khormoj compressor station on t...
introduction energy is one of the most important commodities that make up a large proportion of international trade. among all the countries in the world, iran is known as semi-industrial developing country which is rich in energy such as non-renewable energy in particular fossil fuel. use of energy affects the environment in various forms of pollution. in the agricultural sector, the fao repor...
background: calcium is the most abundant mineral in the human body. this mineral is provided only by the consumption of foods containing calcium that it is recommended to use at least1300 mg daily for adults. this study is aimed to investigate the nutritional behavior of female high school students about consumption of calcium-rich foods.materials and methodsat a descriptive-analytical study, t...
background: dairy products intolerance is defined by existing of gastrointestinal symptoms following dairy product consumption. its prevalence varies among different countries. this study is conducted to determine the frequencies and severities of intolerance symptoms in the consumption of different dairy products in iranian students of medical sciences. methods: in this cross-sectional study, ...
Accurate forecasting of annual gas consumption of the country plays an important role in energy supply strategies and policy making in this area. Markov chain grey regression model is considered to be a superior model for analyzing and forecasting annual gas consumption. This model Markov is a combination of the Markov chain and grey regression models. According to this model, the residual er...
Abstract I n this paper we investigated total energy consumption and its individual forms (oil, natural gas, electricity, renewable energies and coal) relationship with real gross domestic product (GDP) in Iran. We employed Hsiao’s (1981) methodology and annual data which cover 1967-2010 for investigation. The empirical findings indicate there is bidirectional causality ef...
introduction:today, the growing amount of paper consumption and consequently deforestation and environmental destruction have imposed financial burden on different countries around the world. this study aimed to determine the level of knowledge, attitude, and performance of yazd health volunteers on cutting down the consumption of paper. methods: this descriptive-cross sectional study was condu...
The need for prediction and patterns of gas consumption especially in the cold seasons is essential for consumption management and policy planning decision making. In residential and commercial uses which account for the bulk of gas consumption in the country the effects of meteorological variables have the highest impact on consumption. In the present research four variables include daily ave...
a one dimensional dynamic model for a riser reactor in a fluidized bed catalytic cracking unit (fccu) for gasoil feed has been developed in two distinct conditions, one for industrial fccu and another for fccu using various frequencies of microwave energy spaced at the height of the riser reactor (fccu-mw). in addition, in order to increase the accuracy of component and bulk diffusion, instanta...
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