نشریه مهندسی سیستم و بهره وری
سال چهارم شماره 3 (پاییز 1403)

Considering the relationship between the development of human resources, job satisfaction, justice and efficiency of employees and the increasing importance of leaving jobs, moving employees and the large costs that this imposes on the organization, paying attention to job satisfaction, justice and efficiency of employees is one of the important issues in management. Human resources are organizations. Therefore, human resources managers should try to increase the job satisfaction and fairness of employees by considering the activities of human resources and increasing the efficiency of employees in order to fulfill their job duties and responsibilities. Since in service companies, human resources are considered as one of the most important resources of the organization and they play an essential role in order to earn profit and survival of the organization, it is very important to pay attention to their behavior and performance for the continuation of the organization. In this article, the impact of human resources development on the satisfaction and justice and increasing the efficiency of employees has been investigated. Practical purpose and library and field method as well as descriptive-survey questionnaires which consisted of 89 questions were used to collect data. The statistical population of the research was 250 experts, managers and deputies of the Social Security Organization of Semnan province in 1400, and by using the formula of Tamote volume, 152 people were selected as a sample. The results of using the Spearman's rank test showed the existence of a positive relationship between the variables and the development of human resources. The results of the analysis also indicated the relationship between human resource development and job satisfaction as a result of increasing employee efficiency.

Mental conflicts of customers in connection with the brand is an important issue that has been given great importance in most researches in the field of marketing. This concept refers to a set of activities: the focus of the mind and thoughts that consumers use during the process of buying or choosing products and services and can play the role of their decision-making process. In this regard, the present study was conducted with the aim of investigating the effect of retailers' mental conflicts on the selection criteria of Kale company's dairy products brand. The current research method is descriptive-correlation. Also, the type of research was applied and the method of data collection was using field and library studies. To check the normality of the data from the Kolmogorov Smirnov test and to confirm. Validity of questions and identification of key factors of each component! Confirmatory factor analysis test has been used. Structural equation modeling technique has also been used to check the suitability of the research model with the collected data. The results showed that the value of statistic 1 for the significance of the regression coefficient of retailers' mental conflicts is equal to 7.096 and greater than the critical value of 1.96, which indicates the variable influence of retailers' mental conflicts. According to the opinion of the experts, questionnaire questions and random sampling have achieved three dimensions (emotional, cognitive and social), and by examining its aspects and criteria, suggestions can be made at the middle and high operational levels of the organization has been.

This research deals with the risk management of outsourcing projects in automotive component manufacturing companies. The study has shown that automotive companies outsource many of their product sub-categories to external suppliers due to various constraints. This issue affects the risk management in the quality, productivity and profitability of the organization. The present research examines the risk management of outsourcing projects in automotive component manufacturing companies by using failure mode analysis and its effects and multi-criteria decision-making technique. The scope of this research includes companies that operate in the field of automotive component manufacturing. To collect information, the opinions of experts, managers and experts of outsourcing projects in automotive component manufacturing companies have been used. According to the analysis, seventy sub-criteria have been identified and the level of each risk has been examined using the failure mode analysis and its effects method. Then, ten criteria and seventeen sub-criteria were identified and prioritized using the DANP weighting method. The results showed that the most important criteria include infrastructure management, commercial, management, and contractor, and the most important sub-criteria include increased repair time, lack of awareness in plans and lengthening project time, errors in rejection or acceptance, and loss of key employees.

In recent years, a large number of incidents related to counterfeit or low-quality drugs have occurred in various countries. Since medicine is considered an important and strategic commodity, it must be ensured that it is safe and sound. For this reason, governments must exercise this care and adopt preventive approaches to prevent counterfeit and low-quality drugs from entering the health cycle. One of the common tools to prevent this is inspection. This inspection can be carried out with or without prior notice. Also, in the inspections that are carried out, some companies may offer bribes to experts and inspectors so that they do not send the inspection report correctly. In the present problem, which involves a drug manufacturer and an inspector, we intend to examine for the first time the concept of offering bribes in inspections and, given the multifactorial nature of the problem, model and solve it with a game theory approach. In this regard, various scenarios have been considered based on the possibility of detecting defects and accepting or not accepting the proposed bribe. The results of the numerical analysis of the problem show that depending on the number of crimes and bribes proposed, it is possible for policymakers to control and monitor manufactured products.Suggested, it is possible to control and monitor the manufactured products by the policy maker

Since urban service units play an effective role not only on the quality of citizens' personal lives but also on their productivity and job satisfaction, their benchmarking is of great importance. By providing essential services and infrastructure, these units provide conditions for citizens to work and live in a healthy, safe, and appropriate environment. Therefore, measuring and evaluating the performance of these units and providing them with an optimal model seems essential in order to increase the quality level of activities. The present study, by using the mathematical method of output-oriented aggressive data envelopment analysis with one input and four outputs as a strong benchmarking tool, evaluated the performance of urban service units in the fifteen regions of Isfahan Municipality. The results showed that the urban service unit of the fifth region of the municipality had the best performance from the perspective of the inputs and outputs of this study. At the end, the partial productivity of each output was calculated and re-ranked from the perspective of partial productivity, and the ranking results of the two methods were compared.

The present study aims to identify barriers to implementing lean production, determine cause-and-effect relationships between barriers to implementing lean production, and prioritize or rank barriers to implementing lean production in the Iranian printing industry. The research is descriptive in nature and uses two field and library, and the statistical population includes 100 senior managers and production managers from 50 selected printing houses in Tehran. The data collection tool is a questionnaire. The Cochran formula was used to calculate the minimum required sample size, and the DEMATEL technique and the analytic network modeling process in Super Decision software were used to determine cause-and-effect relationships and rank barriers to implementing lean production in the printing industry. The research findings include: financial constraints, inadequate commitment and support of senior managers, insufficient knowledge and skills of senior managers, low understanding and awareness of lean production concepts and the benefits of implementing them, low quality of raw materials, and lack of expert consultants in the field of lean production in the field of printing and publishing. These are barriers of the cause type and affect other barriers. Lack of training and empowerment of employees, lack of proper motivation system in the organization, workers' resistance to change, old machinery and parts and technologies, old and underdeveloped layout and infrastructure, and incorrect selection and use of lean tools and methods are all handicapping barriers and are affected by other barriers. Insufficient knowledge and skills of senior managers are the most influential barrier. Workers' resistance to change is the most influential barrier. Financial constraints are most closely related to other barriers.