Without pre-existing infrastructure, a Mobile Ad Hoc Network (MANET) can be easily deployed in a hostile environment such as a military operation area or an area undergoing disaster recovery. With limited bandwidth, the data caching technique may be useful to enhance the performance of a MANET. The cooperative caching scheme is shown to be suitable for MANETs. With cooperative caching schemes, ...

Evolution of cooperative norms is studied in a population where individual and group level selection are both in operation. Individuals play indirect reciprocity game within their group and follow second order norms. Individuals are norm-followers, and imitate their successful group mates. Aside from direct observation individuals can be informed about the previous actions and reputations by in...

One of the most important requirements of microgrid operation is to maintain a constant frequency such as 50 Hz or 60 Hz, which is closely related to a power balance between supply and demand. In general, microgrids are connected to power grids and surplus/shortage power of microgrids is traded with power grids. Since islanded microgrids are isolated from any power grids, the decrease in genera...

abstract the aim of this survey is to compare utilization systems (cooperative, private and governmental) methods of energy consumption in soybean production and the evaluation of energy inputs effect in yield of soybean in moghan. for this purpose, the information were collected from 54 private farmers, 14 cooperative members farmers and 14 agro-industry units by questionnaire method. the maxi...

abstract a quantitative framework of combination of liner programming and cooperative game theory was used in this study to analyze and model cooperative contracts in production based on rural households' resources cooperation in firoozabad plain. revenues and costs in cooperation game theory have important rule to get agreement. transaction cost function was used in cooperative costs accountin...

this study aims at investigating the effect of using cooperative learning (jigsaw2) and traditional learning on the reading comprehension achievement. in the present study, experimental research model consisting of pre-test, post-test with a control group was applied. the sample of the study consisted of 64 participants in grade three in bonab high schools. to determine the effect of cooperativ...

despite various efforts towards empowerment of cooperatives in iran, much in agreement with this concept and strategies can not be observed. the purpose of this descriptive study was to investigate the solutions to empowering production cooperatives. the delphi technique was employed to do this study. the target population consisted of specialists in national provincial and specialists (n=15). ...

the study investigates factors that affect members' satisfaction of mashhad cattle husbandry cooperatives. the required data and information were collected via interviews and questionnaires from cattlemen. cattlemen of mashhad constitute the statistical population of the study. using cochran formula, 60 cattlemen were selected randomly as the sample in 2013. spss software package was used to an...

introduction: acquisition of intelligible english pronunciation and comprehension of medical texts has been considered as an important need for medical students.  this can be improved by employing different methods and taking into consideration various learning styles of students. this study is an attempt to reveal the effect of cooperative learning on enhancing pronunciation and reading compre...