organizations in private and public sector assign many projects in information technology (particularly software) field to contractors for implementation every year. previous experiences shows that most of these projects are stopped before finishing or cannot meet the expected results. based on studies related to this issue, many of failures depend on implementation contractor, directly or indi...

The rapid development of technology, the Internet, and the development of electronic commerce have led to the emergence of recommender systems. These systems will assist the users in finding and selecting their desired items. The accuracy of the advice in recommender systems is one of the main challenges of these systems. Regarding the fuzzy systems capabilities in determining the borders of us...

Abstract Recently, some areas are exposed to water scarcity and floods, rainwater harvesting (RWH) is a practical solution, particularly in arid semi-arid regions. The Wadi Watier basin located South Sinai, Egypt was selected identify the appropriate RWH techniques. Five alternatives were proposed: dam with reservoir, storage pond, an underground tank, wadi bed cultivation, or Jessor system. hy...

In this paper, the scientific methodology of the contemporary philosopherImre Lakatos is revised to construct a methodology for theological systems. In this methodology, each theological system consists of the following main elements: (1) hard core I, (2) protective wall, (3) hard core II, and (4) auxiliary hypotheses. We will expound the criteria for the evaluation of different theolo...

The importance of software testing has been discussed and proven in many articles and in existing research. Software testing plays a key role in providing quality software solutions and services. Standard testing approaches and methodologies were adequate until the arrival of mobile technologies. With mobile technologies, the testing process was forced to change in the face of significant chall...

considering long term impacts of mehr housing plan on appearance and performances of cities, it is necessary that their construction will be done on the basis of geographical elements and criteria of urban planning in order to have positive impacts on urban quality and performance and reduce the ecological, social, and economical costs. therefore, this research analyzes and evaluates appropriat...

due to lack of agroforestry research in iran, it is important to identify the existing agroforestry systems in order to create a database for further researches. feridan and chadegan citis, west of isfahan province are two areas in which the various agroforestry systems have been developed. these two regions were selected for research because of providing the easy access and a variety of system...