درخت حوزه‌های تخصصی

Increasing economy’s resistance against the menace of sanctions, various risks, shocks, and internal and external threats are one of the main national policies which can be implemented through bank investments. Investment project selection is a complex and multi-criteria decision-making process that is influenced by multiple and often some conflicting objectives. This paper studies portfolio investment decisions in Iranian Banks. The main contribution of this paper is the creation of a project portfolio selection model that facilitates how Iranian banks would make investment decisions on proposed projects to satisfy bank profit maximization and risk minimization, while focus on national policies such as Resistance Economy Policies. The considered problem is formulated as a multi-objective integer programming model. A framework called Multi-Objective Electromagnetism-like (MOEM) algorithm, is developed to solve this NP-hard problem. To further enhance MOEM, a local search heuristic based on simulated annealing is incorporated in the algorithm. In order to demonstrate the efficiency and reliability of the proposed algorithm, a number of test are performed. The MOEM results are compared with two well-known multi-objective genetic algorithms in the literature, i.e. Non-dominated Sorting Genetic Algorithm (NSGA-II) and Strength Pareto Evolutionary Algorithm (SPEA-II) based on some comparison metrics. Also, these algorithms are compared with an integer linear programming formulation for small instances. Computational experiments indicate the superiority of the MOEM over existing algorithms.

For over the past several decades, there has been a great concern about energy crisis and lack of non-renewable resources. Residential buildings take more than 25% of the total energy consumption and more than 75% of energy consumption in these buildings is for heating, cooling and hot sanitary water. On the other hand, traditional buildings of Iran were designed according to ecological conditions upon which, winter or summer sections were built. In this article, first, winter section of Yazd traditional homes, which are in hot-arid region and its thermal behavior, will be studied. This computer simulation is done and vaلیداted with energy-plus software, and temperature changes of these sections were measured with lascar electronics data logger. The results confirmed its reliability. Second, sections with different proportions such as three-door room, five-door room and seven-door room in different orientations, and their thermal behavior are analyzed and compared. So the thermal behavior of winter sections in Yazd traditional homes during a year shows that in winter, the proportions of five-door room in northwest orientation is better than others.

The purpose of this study was to design an educational package of individual and social skills of Islamic lifestyle and to study the effectiveness of the educational package on quality of life, mental well-being of students. To answer the main question and achieve the research objectives, the experimental research method was used. For this purpose, after identifying and selecting individuals, the sample was randomly selected into two groups. Participants have trained 8 sessions in the Experimental group. The statistical population of this research is all students of Ardabil universities. Among the students of Ardabil, universities have used a sample of 30 people was selected. for gathering data were used Reef Psychological Welfare Questionnaire (18-item short form), 26-item Quality of Life Questionnaire. To analyze of data, multivariate analysis of covariance and univariate analysis of covariance was used. The results showed that there is a significant difference in the combination of dependent variables between the experimental and control groups. And also there is a statistically remarkable difference between the average of the two groups of students in the psychological well-being variable, quality of life. . Findings showed that the design and training of individual lifestyle and social skills training package of Islamic lifestyle is effective in increasing psychological well-being, quality of life.Educated Islamic life to increase students' psychological well-being, quality of life.In universities, university counseling centers, the training package of individual and social skills of Islamic lifestyle can be taught to increase the psychological well-being, quality of life of students.