جستجوی مقالات مرتبط با کلیدواژه « منابع محدود » در نشریات گروه « عمران »

Considering that the mission of the project organization management is to create a commitment to the timetable, which prevents project delays and increases associated costs, and accept the fact that the delay in the completion time of the project results in the non-economization of the project, Therefore, the necessity of using proper planning and control methods seems necessary. One of the new methods used in project planning and control, which today focuses on many researchers, is the critical chain management method. In this research, multi-project scheduling with resource constraint in the critical-chain model has been investigated. In general, RCMPSP seeks to find the right sequence for project activities, so that the constraints of the priority of the project network and the various types of resource constraints in the project are met simultaneously. To this end, a multi-objective optimization model has been developed to solve this problem, with its stated objectives, the completion time of the entire project, the cost of the overall project implementation, and the quality of the implementation of the project activities. Also, the critical chain approach, as a new method of project management, has been used for project scheduling and particle swarm optimization algorithm for solving proposed model of this research.

The scheduling of a project with limited resources is a matter of NP. One of the innovative approaches to solving this problem is to use prioritization rules in the planning of activities. In this article, we have implemented eleven rules of prioritization in a static and parallel way, and compared these methods with the criteria for completing the project in a shorter time period, by comparing 112 of the 130 standard test questions containing 30-120 activities. The results show that, firstly, the parallel approach to applying the rules of prioritization is more efficient than the series approach. Secondly, in order to take advantage of the more efficient parallel approach, only three arbitrary priority rules can be applied in parallel.Different resources such as time, capital, human resources, etc. are needed to carry out each activity. These resources are often divided into two types of renewable, such as human and non-renewable, such as capital. Each activity can be executed in several different modes, for example, manually, semi-mechanized or mechanized. The execution of each mode requires different types and amounts of resources

This research is conducted in order to develop transportation management methods based on limited resources to reduce social exclusion in rural areas, (Case Study: Ilam city). The research population consisted of all villages in Ilam city and also the chairmen of councils or village administrators and experts on the subject of rural transport research of which the 3 expert in the sector allocation of resources were used.. The research method is descriptive in nature, and survey in terms of applicable methods. Questionnaire was considered to be the data collection tool and to analyze the data, the descriptive statistics (mean, median, standard deviation) and inferential statistics (correlation, regression analysis, path analysis) were done using the software Excel and Lingo. The results show that with the development of credit obtained 65% assigned by assuming that spending rural transport, can only be used between 25 holistic village 12 statistical research village (model output) has been implemented and the rest will be postponed to future years.