دکتر محمد هادی زاهدی

Energy management based on the Internet of Things is an intelligent method to control energy consumption and production. Energy can be managed intelligently and optimally using sensors, smart devices, and communication networks. The current research aims to extract effective indicators of energy management based on the Internet of Things. This research extracted five main indicators (criteria) and twenty-two sub-criteria from previous studies. While DIMTEL and TOPSIS methods cannot resolve the ambiguity of the verbal evaluations made by the decision-makers, triangular fuzzy numbers were used in all these techniques. To analyze the research data, the indicators were ranked based on the effectiveness of each of them, and the type of relationship between the factors was investigated using the fuzzy Dimetal method. Based on this,, energy cost, has won first place in energy management based on the Internet of Things. The criterion of social benefits, won second place, and the criterion of protocols and standards, won third place.

Software engineering affects all aspects of our daily lives. Software development is the basis of activity in the world of software engineering and information technology. Software development involves a set of steps called the software development cycle.For the success of any software it is significant that each stage of the software development cycle be without errors and defects. But it is unfortunate that we cannot proceed without any uncertainty in the software development cycle. Therefore, it is important that we can identify and evaluate the risks of the initial steps of this cycle.Requirements engineering are preliminary stage of software development cycle, that it's basic needs are collected from customer. If the risks are ignored in the requirements engineering stage, it will have negative effects on the ability of projects to achieve performance goals and efficiency and so the results.The main topic of this article is to identify the risk factors in software development projects focusing on the requirements engineering stage. It also refers to the impact of requirements on the outcome and final product performance and also examine the importance of uncertainty requirements role on the quality of the final product. Then, the risk management steps and its role in strengthening the requirements engineering phase will be described.Conclusion of this article reviews the importance of identifying harmful factors in the early stage of software development and also emphasizes the need to implement the risk management in the requirements engineering.

The purpose is to provide a comprehensive overview of the current state of research in the field of flipped learning and classroom. It is a science metrics attempt to extract and analyze bibliographic networks based on the international scientific indexing (ISI)

Systematic search technique was applied: A set of scientific productions indexed in the field of flipped learning and classroom between 1990 and 2018 extracted from the Web of Science Database (3259 records). VOS viewer software was used to analyze bibliographic networks using data mining technique. Text mining techniques were implemented on keywords, titles, and abstracts in order to network scientific graphs.

Analyzes of published scientific product collections by year, Universities and institutions of higher education and countries are revealed in tables. Bibliographic networking techniques have been applied to countries and Universities to identify the extent of their contribution to science production. The findings of this study were also used to evaluate the quality of scientific output through the number of citations.

Flipped learning is a new educational topic which its significance to other subjects has not been explored nor its various dimensions have been sufficiently and effectively researched.

The cryptocurrencies, including bitcoins, are the fruits of the development of information technology in the international and even domestic financial system in the last decade. Have brought with them. In the present study, From the point of view of individual jurisprudence, the cryptocurrencies are a kind of property, their transactions are not usury and arrogance, and therefore, if the transaction basis of the cryptocurrencies is correct from the religious point of view, its exchange is permissible, but if the transaction basis of the cryptocurrencies is not legitimate, Their transaction is void and forbidden.

In this study which is descriptive-analytical; we reviewed most of the governmental jurisprudence documents about cryptocurrency trading.

The result of the present study is that based on arguments such as the no-harm rule, the rule of respect and the rule of maintaining order, and the rule of action and the rule of justice, which all prevent the implementation of incorrect monetary policies and increase the problematic amount of money in the Islamic economic system.

It is advisable to prevent transactions in the field of currency cryptocurrency until the legal order is established by the government to control the cryptocurrency in the country's economy.

For each software product essential elements in software engineering includes quality, cost and time. Reusability of components can reduce development time and costs and increase product quality. Components used and tested in the past and, can be used and recommended at present too. Evaluation of software reusability is important as evaluation of other qualitative characteristics, and set of methods and criteria are provided for it. In this paper, the optimal set of evaluation criteria for more effective evaluation of reusability of web-based applications has been extracted and recognized. To achieve the optimal set of criteria, the previous criteria has been checked. Then optimum set of criteria has been selected. In other words, based on the criteria for optimal selection criteria, minimum set of criteria that can be fully cover all aspects of web-based software reusability have been recognized and proposed. The performance evaluation of proposed optimal set of selected criteria with content management system, reusability evaluation for every software module could well be done by the developers and the testing system.

For each software product essential elements in software engineering includes quality, cost and time. Reusability of components can reduce development time and costs and increase product quality. Components used and tested in the past and, can be used and recommended at present too. Evaluation of software reusability is important as evaluation of other qualitative characteristics, and set of methods and criteria are provided for it. In this paper, the optimal set of evaluation criteria for more effective evaluation of reusability of web-based applications has been extracted and recognized. To achieve the optimal set of criteria, the previous criteria has been checked. Then optimum set of criteria has been selected. In other words, based on the criteria for optimal selection criteria, minimum set of criteria that can be fully cover all aspects of web-based software reusability have been recognized and proposed. The performance evaluation of proposed optimal set of selected criteria with content management system, reusability evaluation for every software module could well be done by the developers and the testing system.

Wireless sensor networks include low-weight low cost nodes equipped with limited processing and energy sources. Sensor nodes monitor their surroundings and send sensed events to the sink node through shortest path. One of the major challenges in these networks is to keep nodes connected to each other while the target area is covered effectively. These two parameters are referred as main parameters of quality of service (QoS). In this paper, optimal area coverage is carried out using the Gravitational Search Algorithm. In the proposed algorithm, the agents or masses are equivalent to sensor nodes. The nodes are influenced by distance, Newton gravity law and the laws of motion. A group of nodes can be considered as a cluster. The proposed algorithm is compared with previous methods in terms of network life time, remaining energy and network power. Simulation results show that the proposed method reduces energy consumption by optimizing the number of nodes in the area with maximal coverage, and increases the lifetime and effectiveness of the network.

For each software product essential elements in software engineering includes quality, cost and time. Reusability of components can reduce development time and costs and increase product quality. Components used and tested in the past and, can be used and recommended at present too. Evaluation of software reusability is important as evaluation of other qualitative characteristics, and set of methods and criteria are provided for it. In this paper, the optimal set of evaluation criteria for more effective evaluation of reusability of web-based applications has been extracted and recognized. To achieve the optimal set of criteria, the previous criteria has been checked. Then optimum set of criteria has been selected. In other words, based on the criteria for optimal selection criteria, minimum set of criteria that can be fully cover all aspects of web-based software reusability have been recognized and proposed. The performance evaluation of proposed optimal set of selected criteria with content management system, reusability evaluation for every software module could well be done by the developers and the testing system.

The globalization of competition between organizations and companies to deliver their products and services has forced them to join the global market. One of the important tools of information and communication technology, which plays an important role in the integration of information in the organization and is a major requirement for joining the global markets, is the Enterprise resource planning systems (ERP). This system is now considered to be the most recent and most effective resource planning tool for the organization and includes an integrated information, engineering, and management system that meets all the needs of an organization with a process orientation (towards the goals of the organization and integrating all operations). ERP, with a different look, shifts the process of shifting all organizational activities from task to task cycle. Implementing ERP in addition to costly and time consuming, by making fundamental changes to the processes, creates tensions in most parts of the organization, which if implemented by the organization without noticing the problems and challenges they face when implementing ERP, Definitely will fail. The purpose of this article is to understand how to select and implement organizational resource management in organizations. We have largely described the research by combining the findings of different scholars and combining them to form the basis of this research.

ICT has greatly affected the various dimensions of human life in recent years, and its use in various areas of life can help improve the quality of life. With the development of information technology and the influence of telecommunications, the tools and methods of education have also been transformed. The evolution of these tools is that a person can study using available facilities. As a result, e-learning has grown rapidly and has become one of the most popular educational methods, and its use has improved the quality of education. In this article we mention the development and advancement of new technologies such as cloud computing, Internet of Things, big data, responsive design and wearable technology, and their unparalleled role in e-learning. In addition, the challenges ahead in e-learning have been studied. Education in the world today is considered as an influential and influential industry; in 2016, the world's income from inhuman and web-based education was $ 51.5 billion, with Asia's share of $ 11.5 billion and the share of Western Asian countries $ 560 million. Therefore, attention and utilization of new concepts and new technologies in this field is indispensable and inevitable.

Nowadays, there is wide usage of wireless sensor network in control of civilian and military systems, home and industrial automation, medicine and tracking fields. The sensed information such as humidity, temperature, pressure, infrared images and noise are packed to send over the network. However, errors at the time of transmission may increas the risk of fault in information. Efficient energy consumption and reliable transmission in sensor networks are the main challenges. To achieve high reliability transmission there are two methods for sensor networks: Data redundancy and retransmission. In this article a reliable method of connection for packet retransmission, based on the correlation between data has been proposed. In this method, some parts of data way are considered as error zone. This method was evaluated using the OPNET simulator. Simulation results show that the proposed method can save energy and increase the lifetime of the sensor network.