suffering from disorder and chaos, tehran is a city capable of introduced as one of the most beautiful cities in the world for its historical and geographical capacities. unfortunately, in the modern era and after the islamic revolution when urban development destiny started to depend on engineers due to their increasing authority in urban management, culture role was undermined and tehran unde...

being observed frequently that projects cannot achieve to their plan duration and their budget. utilizing retrospective method is one of the reasons for this problem. in this research two method, earned duration management and risk management, has been used to remove the gap of the plan and the reality; this enable the project to utilize both high accuracy of the first method and prophecy of th...

rangeland plans as an management option is subject that by giving range to beneficiaries beneficiaries will be identified in the plans whit specific programs. the purpose of this study is to identify factors affecting the performance of rangelands schemes and consequently to rank the projects in razavi khorasan by identified factors. six original schemes in razavi khorasan were selected for thi...

Project planning is part of project management, which is relates to the use of schedules such as Gantt charts to plan and subsequently report progress within the project environment. Initially, the project scope is defined and the appropriate methods for completing the project are determined. In this paper a new approach for the critical path analyzing a project network with random fuzzy activi...

Nowadays project management is a key component in introductory operations management. The educators and the researchers in these areas advocate representing a project as a network and applying the solution approaches for network models to them to assist project managers to monitor their completion. In this paper, we evaluated project’s completion time utilizing the Q-learning algorithm. So the ...

In this study the challenges of managing the civil projects in oil and gas industry over recent years that failed were investigated. For this purpose, the relevant cases and their effectiveness were categorized by analyzing research data obtained from the questionnaire results. The results obtained from the research showed that there is a positive and significant relationship between the projec...