electric motors are the largest consumer of world electric energy, consuming more than twice as much as lighting, the next largest consumer. electric motors account for between 43 and 46% of all global electricity consumption approximately. they give rise to about 6 040 mt of co2 emissions. end‐users approximately spend usd 565 billion per year on electricity [1]. in recent years, increase in e...

The sharing economy has disrupted housing and transportation sectors. Homeowners can rent out their property when they are away on vacation, car owners can offer ride sharing services. These sharing economy business models are based on monetizing under-utilized infrastructure. They are enabled by peer-to-peer platforms that match eager sellers with willing buyers. Are there compelling sharing e...

computer spying is considered as a crime, inducing computer as a criminal subject and material part of it. it is not possible, before discovering computer, so, most countries have no passed rules a bout it. internal law of our country has investigated activities such as illegal attaining into secret data ,damaging security and national interests 'in case of disclosing them, as computer spy...

renewable energy sources (res), especially wind power plants, have high priority of promotion in the energy policies worldwide. an increasing share of res and distributed generation (dg), should, as has been assumed, provide improvement in reliability of electricity delivery to the customers. paper presented here concentrates on electricity storage systems technologies and applications pinpoint...

objective: the aim of the current study was to assess the impact of computer games and computer-assisted type instruction on dictation scores of elementary school children with attention deficit – hyperactivity disorder (adhd). method: in this single-blind clinical trial, 37 elementary school children with adhd, selected by convenience sampling and divided into group i (n=17) and group ii (n=20...

Environmental problems are one of the most challenging issues for the entire world and each country. In economic studies, environmental issues are analyzed as negative externalities. In this article, the negative externalities of electricity production on the output growth of different sectors and household’s welfare in Iran’s economy have been studied through price system using Computable Gene...

in this paper, the residential demand for electricity equation is specified and then this equation is estimated using a pooling data for period 1983-90. the results of study for different regions of province show that the demand is less elastic with respect to average price of electricity and residential area, .but it is more elastic with respect to income and average number of households. thes...

energy carriers including electricity play a critical role in human societies development, and as the time passes, their importance in the human socio-economic life rises. therefore, knowing electricity demand and the factors affecting on it could have an effective role in economic decision-making. while dividing electricity demand into different consuming sectors, this study uses economic vari...

introduction. today, computer and information technology serve an increasingly important role in medical education. since the faculty members have an essential role in medical education, this study was designed to assess their knowledge, attitude and computer skills. so, the results of this survey would help us to identify and manage the problems in the way of proper application of computer and...

this study aims to investigate the relationship between information literacy, computer self-efficacy and academic performance in a population of 1054 of ba and ma students of psychology and educational sciences faculty of tehran university. the data are collected in a sample of 283 students (103 ba and 180 ma); selected using cochran's sampling formula. these students answered mittermeyer ...