capital There are two meanings in economics. One is the monetary value of assets owned by an individual firm, etc. or the amount that is available to invest. The second meaning, used herein, refers to a human-made input into the production process, including things such as buildings and machinery, and infrastructure (telecommunications systems and the like). Capital in these forms is also descr...

We consider a simple model of energy saving investments under uncertainty of energy costs. Adjustment delays in replacing energy-intensive capital follow from two natural elements: uncertainty and heterogeneity of the existing capital structure. They imply a simple dichotomy where short-run output contracts, but the long-run output recovers and increases above the initial output, despite the in...

energy management is one of the main ways of the efficient use of energy resources. the prediction of crop yields based on energy inputs can help farmers and policymakers to estimate the level of production. required data for study were randomly collected from 70 broiler farms in north west of iran. the input energies were included human labour, machinery, fuel, feed and electricity and the out...

during the past few years, modeling in agriculture has attracted considerable attention. new modeling methods including neural networks are employed in various industries, and it is necessary that their use in agriculture be also considered. this research addressed the trend of energy use in broiler farms in alborz province and sought to model the trend of energy consumption and production in t...

intordaction : religion and its concepts have been a main as well as unique source in producing social capital. the development of social capital, as the raw material for a civil society, depends on certain variables including religion and religious culture. in spite of numerous researches on social capital and its factors, there are few systematic studies undertaken to examine interrelationshi...

in this study, the relationship between components of knowledge management on the basis of m. mc olrvy model and social capital has been studied, statistical population consisted of employees of ministry of energy, who were selected among employees of hamedan regional power and were 420 subjects. research tool is a questionnaire and spss statistical software is used for data analysis and struct...

castor bean (ricinus communis l.( with a capability to withstand harsh conditions, low nutritional needs, 50 percent of oil content and high- quality, is one of the best crop used to produce biodiesel. the first step toward introduction and widespread cultivation of this crop is to investigate the energy balance for its cultivation. to do so, energy input (include renewable and nonrenewable) an...

introduction energy analysis of agricultural ecosystem is essential for sustainable production. the relation between agriculture and energy is very close. agriculture is an energy consumer and the energy supplier. agriculture’s use of energy is recognized in three external inputs: labor, machines, and fertilizers (connor et al., 2011). significant gains in energy efficiency were arisen in agric...