Welding is widely used in all industries, and its demand is drastically increasing. Today, all sectors of engineering need quality welders to meet their standards. Welders need years of experience and knowledge to meet those standards. They require lots of training, equipment, tools, and safety standards to master the welding skill. The cost of training is very expensive as they will be practicing every day with different materials. The purpose of this project is to train them in a new merged-up environment of the virtual and real world. As a result, this method would reduce training costs and enhance the safety of the users. This method is a medium that helps users to have a better understanding of welding operations and gives them the confidence to perform proficiently in reality along with the elimination of risk, liability, and injury.

Electricity systems are currently expanding towards more efficient forms of production. Several expansionary strategies are being developed to cover increases in future electricity demand. Goals such as reducing greenhouse gas emissions, increasing the efficiency of operations, and achieving more equitable participation of the actors in charge of the investments are set. Following this premise, this paper presents a multi-objective model that helps in decision-making on the problem of expanding electricity generation. The model considers more realistic views than other works in the literature. The vast majority of the stakeholders in the studied field are satisfied with the present proposal. Investment costs, greenhouse emissions, and investment contribution rates are considered. Also, the actual procedures of the generation and transmission stages are rigorously studied. This means obtaining solutions that are closer to reality. The case study is the electricity system of Argentina. The results obtained indicate that the recommended solutions are the most convenient from all points of view. They constitute a mix of the generation with renewable and non-renewable technologies. The case study reveals emission reductions of up to 25% and it can be achieved that the most vulnerable social groups do not have to finance future system expansions.

This study aimed to develop a conceptual model of the mediating role of organizational commitment and organizational citizenship behavior on the influence of organizational justice on the performance of civil servants in the Pekanbaru Municipal Government. The sample was 147 civil servants in the Pekanbaru Municipal Government. The sampling was done using systematic sampling while the data processing was done using Structural Equation Modeling Partial Least Square (SEM PLS). The findings in this study are organizational justice has a positive influence on the performance of civil servants in the Pekanbaru Municipal Government, organizational citizenship behavior mediates the influence of organizational justice on the performance of civil servants in the Pekanbaru Municipal Government, organizational commitment does not mediate the influence of organizational justice on the performance of civil servants in the Pekanbaru Municipal Government. The most effective pathway in influencing employee performance is the mediating pathway of organizational citizenship behavior on the influence of organizational justice on the performance of civil servants.

This study aimed to develop a conceptual model of the role of differentiation strategy and organizational citizenship behavior in mediating the effect of transformational leadership on the performance of private high schools in Pekanbaru. The sample was 140 principals and vice-principals of private high schools in Pekanbaru. The data obtained were processed using Structural Equation Modeling Partial Least Square (SEM PLS). The findings in this study are that transformational leadership has a positive effect on the performance of private high schools in Pekanbaru, differentiation strategy and organizational citizenship behavior mediate the effect of transformational leadership on the performance of private high schools in Pekanbaru. The most effective pathway to affect the performance of private high schools is the mediating pathway of organizational citizenship behavior on the effect of transformational leadership on the performance of private high schools.

This study aimed to develop a conceptual model of the role of organizational commitment in mediating the influence of work environment and spiritual motivation on employee performance. The population was 305 employees of the Islamic Rural Bank Bhakti Sumekar—with a sample of 122 employees. The data were processed using Structural Equation Modeling Partial Least Square (SEM PLS). The findings in this study are that work environment and spiritual motivation have a positive influence on employee performance, organizational commitment plays a mediating role on the influence of work environment and spiritual motivation on employee performance, the most effective pathway in improving employee performance is the mediating pathway of organizational commitment on the influence of spiritual motivation on employee performance.

This study aimed to develop a conceptual model of the role of organizational support in moderating the effect of competence and organizational commitment on management performance. The population was 150 managers of the National Sports Committee of Indonesia in the city, regency and province of Riau. The entire population was sampled and the data was processed using Structural Equation Modeling Partial Least Square (SEM PLS). The study found that competence and organizational commitment have no effect on management performance and organizational support acts as the moderator of the effect of competence and organizational commitment on management performance. Organizational support is a pure moderator that amplifies the effect of organizational commitment on management performance.

Maintenance philosophies and their activities have always been a major concern in industry. So, every industrial complex needs a clear and comprehensive maintenance plan to keep its equipment reliable and available. In this study, we proposed an AHP model combined with the BOCR method to select the most reliable maintenance strategy for a combined cycle power plant (GTG-HRSG). Five well-known maintenance alternatives including root cause analysis, condition-based maintenance, reliability-centered maintenance, run-to-failure and preventive maintenance are chosen to be evaluated by several experts from various departments of operation, planning and maintenance via three priorities of economic, technical and operation and 30 sub criteria and controls. Then, five different BOCR synthesize methods have been utilized to rank maintenance alternatives. The final result shows that four out of five synthesize methods have ranked RCA as the top maintenance strategy and RCM as second. In one other method, the rank of these two strategies is vice versa.

New Product Development Process (NPD) is a key aspect of launching new and innovative products in the market. Many products fail in the market because of technical risks, financial risks and product development time risks. It is very important to understand the overall risk factors associated with different stages of product development so that risks can be mitigated effectively. This paper presents a methodology to understand the risk associated with the initial stages of NPD. Design flexibility is higher in initial design stages requiring minimum redesign efforts and costs. It is a great opportunity to deal with risk factors and uncertainties in initial design stages than the later design stages. Product development costs in initial stages are around 5 to 10 percent but impact is 70 to 80 percent so exploration assessment in initial stages of NPD can be hugely beneficial. Stage-wise risk assessment will also provide the details of risk associated with each stage, which will be helpful in implementing appropriate mitigation strategies. Since transition from one stage to another stage of NPD is independent of the previous stage, different NPD stages can be easily expressed by the transition state of the Markov process. In this paper, the Markov process has been used for the risk assessment of initial stages of NPD, keeping mitigation strategies in mind. The three initial stages of NPD considered in this study include the concept design, detailed design and integration & testing stages. This paper also explores a method by integration of quality function deployment (QFD) and Markov process, to understand risk patterns associated with several complete design solutions (CFDs). By using QFD, the mapping between customer requirements can be reflected into risk assessment of complete design solutions (CFDs). This methodology has been demonstrated by a case study on Coffee Maker.

This study investigates the impact of spiritual leadership on the decision-making process in Kuwaiti ministries. Also, this study adopted a quantitative analytical, and descriptive approach. The study relies on the strategy of a comprehensive survey of the study population, and it depends on the questionnaire as a main tool in collecting primary data. The survey is conducted on 322 employees in the Kuwaiti ministries. The data analysis uses the SPSS version 26. The results show that spiritual leadership dimensions, vision, altruistic love, calling, hope, and membership, have a significant impact on the decision-making process in the Kuwaiti ministries.

The purpose of the loop layout problem is to determine the optimal sequence for operations by giving a cyclical arrangement of the machines along a given route. Calculating the initial cost of processes is critical in general. Additionally, these expenses can be reduced by proposing an alternate flow for the system's components. It has been observed that machines at gyms are utilized in accordance with a certain program, and so they require the optimal arrangement to accommodate these programs. In this study, the best cyclical arrangement of the machines in a gym was determined using an intuitive method. Customers enrolled in various training programs will be required to change machines in accordance with the sequence of the machines in their training program. The purpose of this study is to determine the optimal layout of these machines in order to alleviate gym traffic congestion and provide a more intuitive movement plan for consumers. The purpose is to build a layout plan that minimizes backward movement using an objective function created from the positions of the machines in the training programs, the number of customers who use these programs, and the frequency with which the machines appear in multiple programs. For the first time in gyms, an effective solution to the machine layout problem has been proposed using an optimization approach.