Search Results (2,024)

In industries such as aircraft or train manufacturing, large-scale manufacturing companies often manage several complex projects. Each of these projects includes multiple tasks that share a set of limited resources. Typically, these tasks are also subject to time dependencies among them. One frequent goal in these scenarios is to minimize the makespan, or total time required to complete all the tasks within the entire project. Decisions revolve around scheduling these tasks, determining the sequence in which they are processed, and allocating shared resources to optimize efficiency while respecting the time dependencies among tasks. This problem is known in the scientific literature as the Resource-Constrained Project Scheduling Problem (RCPSP). Being an NP-hard problem with time dependencies and resource constraints, several optimization algorithms have already been proposed to tackle the RCPSP. In this paper, a novel discrete-event heuristic is introduced and later extended into an agile biased-randomized algorithm complemented with an adaptive capability to tune the parameters of the algorithm. The results underscore the effectiveness of the algorithm in finding competitive solutions for this problem within short computing times. Full article

In the context of the digital economy era, can digital transformation promote the improvement of non-financial performance of manufacturing enterprises? Taking Shanghai and Shenzhen A-share listed manufacturing firms from 2012 to 2021 as instances, this paper decomposes non-financial performance from five dimensions: innovation performance, ESG performance, working capital management performance, organizational resilience, and corporate market competitiveness, and examines the effects and mechanisms of the digital revolution on manufacturing companies’ non-financial performance via empirical analysis. The findings are as follows: (1) digital transformation of manufacturing enterprises plays a significant positive role in innovation performance, ESG performance, working capital management performance, organizational resilience, and corporate market competitiveness, and (2) digital transformation can promote the improvement of non-financial performance of manufacturing enterprises by improving the quality of internal control. In addition, the heterogeneity analysis results show that digital transformation contributes more to the non-financial performance of non-state-owned manufacturing enterprises. The study conclusion can provide experience for promoting the sustainable development of manufacturing enterprises and driving high-quality economic development. Full article

Abstract: Due to the industrialization of the construction sector, enterprises that manufacture prefabricated components are developing rapidly. Because the production capacity of each enterprise varies immensely, the upstream enterprises are unable to match the component manufacturing enterprises that are suitable for the supply target. With respect to the product capacity, scientific and accurate evaluations are crucial. The authors preliminarily determined factors that impact the production capacity of components and considered a literature review and the inspection results of component manufacturing enterprises. By performing a thorough investigation and analysis, they constructed the index system for evaluating the production capacity of enterprises that manufacture prefabricated components, and each index was interpreted. To determine the weight of the evaluation index, an analytic hierarchy process was utilized; furthermore, the characteristics of each grade were described, and a fuzzy comprehensive evaluation model was built. Moreover, to empirically analyze the built model, the authors selected a construction company and analyzed 127 questionnaires filled in by employees at all the organizational levels related to PCT production and to 34 evaluation results of experts from standard quota research institutions in various provinces. The results of the two methods revealed the following: This enterprise level is the “Reinforcement level” (level 3). The evaluation results are consistent with the empirical results of the model established herein, which verifies its feasibility. Full article

Saudi Arabia aims to build a sustainable and diversified economy by 2030. The automotive industry presents a key opportunity to achieve these goals through localization and the adoption of Industry 4.0 technologies. This research analyzes the impact of a developed localized production model for the automotive industry. The model promotes economic sustainability through domestic manufacturing, job creation and reduced oil dependence; environmental sustainability via the Industry 4.0 approach, which enhances customization, and social sustainability by developing human capital, transferring advanced technologies and stimulating job creation, thereby balancing the three spheres of sustainability. To attain the aim of the research, data were collected from 106 Saudi automobile companies. For the data collection, a questionnaire was designed, and authentication was performed according to the average level of use of Industry 4.0 and analysis of the level of implementation of the developed localized production model for the automotive industry of the Kingdom of Saudi Arabia. The results shows that large automobile companies in the Kingdom of Saudi Arabia are employing the developed localized production model more than medium and smaller automobile companies, and as a result of this model employment, automobile companies’ customer satisfaction through customization and revenue has improved in an agile and lean manner. Full article

This study provides a comprehensive analysis of global patent trends in battery recycling, focusing on secondary batteries and related technologies across Korea, China, and the United States. The methodology involved collecting data from various patent databases, followed by quantitative analysis to identify technology trends and guide future development. The research employed statistical tools to analyze patent activities, including the frequency and scope of patent filings, and comparative analysis to highlight differences between countries. This study reveals distinct emphases on technologies such as lithium-ion and waste battery recycling, highlighting notable differences in patent activities among key companies and countries. China’s large number of patents in battery manufacturing processes contrasts with the USA’s focus on electrochemical cell construction and storage systems, while Korea shows significant activity in waste battery technology. The novelty of this paper lies in its detailed comparative analysis of patent trends across these three major economies, providing insights into the technological focuses and priorities of each country. The study also identifies key challenges, such as the need for consistent innovation and broader geographic coverage in Korea, enhancing patent influence and international presence in China, and ensuring high patent quality and fostering innovation in lagging sectors in the United States. Addressing these challenges through enhanced collaboration, increased R&D investments, and supportive policies is crucial for strengthening the global position and driving further innovation in the battery recycling sector. Full article

In recent years, ESG (environmental, social, and governance) has emerged as a critical investment concept. Its goal is to create value for both shareholders and society, encouraging companies to optimize social value. However, the exploration and research into “the proportion of firms exporting and the pathways through which the environmental, social, and governance activities of carbon-intensive firms influence firms’ financial performance” remains largely unexplored. This study establishes a research framework within this context, utilizing listed Chinese manufacturing companies as the research subjects. Taking agency theory rationale and signaling theory as the theoretical framework, this study thoroughly investigates the relationship between ESG ratings, corporate export ratios, and corporate financial performance through panel regression models using fixed-time, fixed-industry, and bi-directional fixed-effects models. The results of this study show that (1) ESG ratings have a positive impact on corporate financial performance; (2) firms’ export ratios play a mediating role in the relationship between ESG ratings and corporate financial performance; and (3) carbon-intensive firms have a positive moderating effect on the relationship between ESG ratings and corporate financial performance. Based on these findings, we propose policy recommendations at the firm and government levels to increase the importance of ESG, strengthen corporate governance, and promote continuous progress in ESG. This study provides micro evidence of the interactions between ESG ratings, export ratios, carbon-intensive firms, and firm performance to enable investors to make informed decisions. Full article

Digital transformation provides new drivers for economic performance growth in enterprises, but can it further improve ESG performance and support sustainable development? Based on the perspective of resources and capabilities, this article uses the relevant data of 1588 listed companies in strategic emerging industries from 2011 to 2021 to study the impact of digital transformation on enterprise ESG performance examines the intermediary role of absorptive capacity and the moderating role of regional digitalization level, and further analyzes the heterogeneity of property rights and industrial nature. The research results indicate that: firstly, digital transformation of enterprises can positively promote the improvement of ESG performance; secondly, absorptive capacity serves as a conduit through which digital transformation influences a company’s ESG performance; thirdly, the regional digitalization level positively moderates the promotion effect of digital transformation on enterprise ESG performance; fourthly, the impact of digital transformation on ESG performance of enterprises is significantly differentiated in the nature of enterprise property rights and industrial nature, and the ESG performance of state-owned enterprises and high-end equipment manufacturing enterprises is more sensitive to digital transformation. The research conclusion is based on a digital perspective, providing relevant insights for improving the ESG performance of strategic emerging industry enterprises and expanding their ESG development paths. Full article

The long-standing, unrestrained utilization of energy resources by China’s manufacturing sector has created irreversible obstacles to regional sustainable development. Consequently, the Chinese government has implemented a water resource tax policy in certain regions, with the aim of compelling manufacturing enterprises to adopt green and energy-saving innovations. This study used panel data from Chinese manufacturing companies listed on the A-share market from 2009 to 2020 and employed a double machine learning model to explore whether the water resource fee-to-tax reform can compel enterprises to enhance their tripartite green energy-saving innovation drive. These innovations consist of vision-driven and mission-driven green energy-saving technological innovations and green management energy-saving innovations. Following a quasi-natural experiment, our findings revealed the following: (1) The water resource fee-to-tax policy promoted the internal coupling coordination of the triple-driven system. (2) The policy compelled progress in mission-driven green energy-saving technological innovations and green energy-saving management innovations but hindered vision-driven green energy-saving technological innovations. (3) Within the internal systems of manufacturing enterprises, green energy-saving management innovations play a positive mediating role between the water resource fee-to-tax policy and the mission-driven green energy-saving technology innovation subsystem, but they lack a similar positive mediating mechanism for the vision-driven green energy-saving technology innovation subsystem. (4) The counterfactual framework verified that the mechanistic pathway “water resource fee-to-tax → green energy-saving management innovation → mission-driven/vision-driven green energy-saving technological innovation” could be further extended to other manufacturing enterprises not currently under policy compulsion. (5) In the interaction system between manufacturing enterprises and external markets, the development of marketization and financial technology positively regulated the promoting effect of the water resource fee-to-tax policy on mission-driven green energy-saving technological innovations and green energy-saving management innovations, but it did not have a similar effect on vision-driven green energy-saving technological innovations. Full article

Implementing quality tools and methods creates a basic foundation for innovations, sustainability, optimization, and competitiveness in the era of Industry 4.0 and Quality 4.0. This paper aimed to investigate the use of quality tools and methods in the 24 divisions of a mother manufacturing company without the influence of external factors such as geographical location (America, Africa, Asia, and Europe). It was important for the mother manufacturing company to implement a uniform process standard for innovation and performance. Research methods focused on using the Kanban card, Ishikawa diagram, affinity diagram, Flowchart, 5S, OPL, layout, and Pareto analysis. It was determined in this research that the synergy (combination) of quality tools and methods in divisions improves the process performance. This hypothesis was confirmed by the results of implementing quality tools in processes within divisions. A top result was the new innovative model of synergy of the quality tools and methods for divisions of the parent company thus filling a gap in the scientific field. This model created the basis for the uniform process standard in all divisions. The results brought improvements in the processes such as material input inspection, spare parts production, production process, and product packaging. This model could be a proactive instrument for process innovation. Full article

The experimental determination of cutting forces during milling is an important aspect followed in the manufacturing process and involves the use of specialized devices known as dynamometers. These can be made in the laboratory, depending on the type of measurements to be made, or they can be commercial, purchased from specialized companies. In this paper, such a dynamometer made by the authors in the laboratory is analyzed. For the elastic elements, octagonal rings are used. The main problem in the case of these dynamometers, namely the determination of the stiffness of the rings, is solved analytically, using the FEM for comparison, and then experimentally validated. The dynamic model, created based on the obtained values using d’Alembert’s principle, allows for simulating the behavior of this dynamometer in practical applications and determining the field in which it can be used. The frequencies and natural modes of vibration are determined, and the values obtained are compared with those obtained using ANSYS software 2021 R2. Full article

Due to the rapid development of the clean energy sector against the global backdrop of carbon emission reduction, the availability of rare earths is becoming scarce. The strategic recycling of rare earth resources serves the dual purpose of alleviating supply shortages and aligning with the global quest for carbon reduction and environmental preservation. This study establishes a second-level, closed-loop supply chain that includes a rare earth group (REG) that synergizes rare earth mining and smelting companies with rare earth material manufacturing companies, as well as a specialized rare earth recycler. The study considers three different recycling scenarios: the recycler only recycles oil sludge scrap (S1), the recycler only recycles end-of-life products (S2), and the recycler both recycles oil sludge scrap and end-of-life products (S3). In addition, the study examines the impact of government subsidies, carbon trading mechanisms, and corporate research and development (R&D) initiatives on closed-loop supply chains. The findings are summarized below. (1) Rare earth recycling does not impact the rare earth market downstream. (2) The profits of both REG and the recycler have a positive correlation with the quantity of recycling. However, recycling sludge waste can generate higher revenues for the recycler compared to recycling end-of-life products. (3) Government subsidies exert a positive effect on the recycler’s profits and the production of secondary rare earths. However, the REG redirects a segment of the recycler’s profits in its direction. Elevated carbon trading prices encroach upon the REG’s profitability, prompting increased procurement of secondary supply rare earths. (4) The benefits of increasing rare earth recycling rates outweigh government subsidies and carbon trading valuations in the supply chain. Therefore, enterprise-focused research and development initiatives play a critical role in improving the efficiency of the closed-loop rare earth supply chain. Full article

This article investigates the currently limited multidisciplinary research front in emerging areas of mindfulness practice, employee well-being, and engagement. This evidence-based study aims to explore multifaceted mechanisms on how an organizational mindfulness development may affect well-being and engagement at multiple levels. This study employed a qualitative case study research design using Nvivo 12 software for a data analysis. The job demand–resource (JD-R) model was adopted as a theoretical framework. In-depth interview data were collected from diverse multi-stakeholders, including management and employees, in a Thai manufacturing company. Our findings uncover that the organizational mindfulness program can improve employee’s psychological capital, emotional intelligence, and perceived resources, and alleviate perceived demands. The result implies the importance of the mindfulness practice since it can support well-being and engagement at multiple levels, specifically from individual work and a collective team of colleagues, and toward enhanced organizational performance. Our proposed emergent model also advances the JD-R theoretical framework, by adding mindfulness and emotional intelligence as essential components to enhance engagements at three levels (i.e., work, team, and organizational engagement). Overall, the result critically provides the theoretical development and insightful managerial implications for professional and organizational development. Full article

This paper underlines the significance of free trade agreements in attracting foreign direct investment and their impact on the operational capacities of local firms in host countries. It argues that free trade agreements do not only eliminate barriers to trade, but they also increase the size of the regional market and improve the business environment, making it more attractive to foreign direct investment, along with all the attributes and spillover effects associated with it. While determining the type of spillover effects of foreign direct investment associated with Oman’s trade agreements, this paper uses the Kruskal–Wallis H-test and 438 samples from companies surveyed between 1 August and 31 October 2023 to assess the impact of spillovers on the performance of the surveyed companies. The results reveal that technology transfer, knowledge transfer, labour productivity, product efficiency, capital investments, and job creation have positive effects on the firms’ operational capacities, with technology transfer having the highest impact (27%), followed by labour productivity and job creation (18%). The spillover effects are almost the same for company size and percentage of ownership. They also identified manufacturing and tourism as priority sectors and the availability of a skilled workforce as a major challenge. These findings make original contribution to the field as this is probably the first study to produce a firm-level analysis of spillover effects of foreign direct investment and trade agreements in the context of Oman and the wider Gulf region. The paper concludes with practical implications for policy makers when negotiating trade agreements and designing investment policies to optimize spillover effects on the performance of their domestic firms. Full article

In recent decades, the increasingly competitive marketplace that has resulted from factors such as globalization and technological innovation has made it ever harder for businesses to deliver economic sustainability. At the same time, the pressure on businesses to achieve and maintain environmental sustainability has also grown significantly. This study examines the factors that influence economic sustainability, the relationship of economic sustainability to environmental sustainability, and the extent to which these two factors ultimately affect financial growth. In order to achieve this, this study analyses the results of 342 questionnaires completed by managers of manufacturing companies within Saudi Arabia’s small and medium enterprises (SMEs) sector. This analysis, using structural equation modeling, showed that innovation inclination, customer centricity, supplier relationships, network maturity, and strategic agility all have significant effects on economic sustainability. This study also shows that economic sustainability has a significant impact on environmental sustainability and that economic sustainability and environmental sustainability positively impact financial growth. This study adds to the current literature by demonstrating an explicit association of innovation inclination, customer centricity, supplier relationships, network maturity, and strategic agility with economic sustainability, as well as a positive relationship between economic sustainability and environmental sustainability. The findings also contribute to the literature by showing the direct impact of both economic sustainability and environmental sustainability on financial growth. In practical terms, this study will help Saudi SMEs develop business strategies that drive both environmental and business performance and provide useful insights for Saudi policymakers and financial institutions looking to support the Saudi Vision 2030 aims by encouraging funding and support mechanisms that drive better business and environmental performance. Full article

A variety of process capability indices are applied to the quantitative measurement of the potential and performance of processes in manufacturing. As it is easy to understand the formulae of these indices, this method is easy to apply. Furthermore, a process capability index is frequently utilized by a manufacturer to gauge the quality of a process. This index can be utilized by not only an internal process engineer to assess the quality of the process but also as a communication tool for an external sales department. When the manufacturing process deviates from the target value T, the process capability index C_PMK can be quickly detected, which is conducive to the promotion of smart manufacturing. Therefore, this study applied the index C_PMK as an evaluation tool for process quality. As noted by some studies, process capability indices have unknown parameters and therefore must be estimated from sample data. Additionally, numerous studies have addressed that it is essential for companies to establish a rapid response mechanism, as they wish to make decisions quickly when using a small sample size. Considering the small sample size, this study proposed a 100 (1 − α)% confidence interval for the process capability index C_PMK based on suggestions from previous studies. Subsequently, this study built a fuzzy testing model on the 100 (1 − α)% confidence interval for the process capability index C_PMK. This fuzzy testing model can help enterprises make decisions rapidly with a small sample size, meeting their expectation of having a rapid response mechanism. Full article