Joint Production Research Articles

Who Wants to Shop With You: Joint Product-Participant Recommendation for Group-Buying Service.

Recent years have witnessed the great success of group buying (GB) in social e-commerce, opening up a new way of online shopping. In this business model, a user can launch a GB as an initiator to share her interested product with social friends. The GB is clinched once enough friends join in as participants to copurchase the shared product. As such, a successful GB depends on not only whether the initiator can find her interested product but also whether the friends are willing to join in as participants. Most existing recommenders are incompetent in such complex scenario, as they merely seek to help users find their preferred products and cannot help identify potential participants to join in a GB. To this end, we propose a novel joint product-participant recommendation (J2PRec) framework, which recommends both candidate products and participants for maximizing the success rate of a GB. Specifically, J2PRec first designs a relational graph embedding module, which effectively encodes the various relations in GB for learning enhanced user and product embeddings. It then jointly learns the product and participant recommendation tasks under a probabilistic framework to maximize the GB likelihood, i.e., boost the success rate of a GB. Extensive experiments on three real-world datasets demonstrate the superiority of J2PRec for GB recommendation.

Exploration of Application of Essential Principles of Safety and Performance of Medical Devices and IVD Medical Devices: Take Artificial Joint Products as Example

Through the effective application of Essential Principles of Safety and Performance of Medical Devices and IVD Medical Devices (EP), to continuously improve the corresponding management tools to ensure the safety and effectiveness of medical device in the quality management system, risk management system, evaluation of safety and effectiveness for the supervision departments and manufacturers. The current status of the application of EP and the application issues are analyzed in the study. Take artificial joint products for example, the idea of using EP in quality management system, risk management system and evaluation of safety and effectiveness is investigated, and several thoughts are proposed. Supervision departments should strengthen the unified understanding of EP, develop requirements according to the classification of medical device，and refine specific execution requirements.

Epoxidation of cyclohexene with cyclohexyl hydroperoxide

Objectives. To investigate the regularities of the process of joint production of epoxycyclohexane, cyclohexanol, and cyclohexanone using the cyclohexene epoxidation reaction with cyclohexyl hydroperoxide in the presence of an ammonium paramolybdate catalyst, representing an alternative to the method of cyclohexanol and cyclohexanone synthesis by alkaline catalytic decomposition of cyclohexyl hydroperoxide.Methods. The qualitative and quantitative analysis of the obtained intermediate and target compounds was determined using modern physicochemical research methods: gas–liquid chromatography using the Chromatec-Crystal 5000.2 hardware and software complex with a flame ionization detector and infrared spectroscopy on an RX-1 infrared Fourier spectrometer. The content of hydroperoxide in the oxidation products was determined using iodometric titration, while the carboxylic acid content was determined by the titrimetric method based on the neutralization reaction.Results. The presented method for obtaining cyclohexanol and cyclohexanone together with epoxycyclohexane by the reaction of cyclohexene epoxidation with cyclohexyl hydroperoxide containing cyclohexane in the products of high-temperature liquid-phase oxidation is experimentally substantiated. The influence of various technological parameters on the process of liquid-phase oxidation of cyclohexane to hydroperoxide is described. The conditions for carrying out this reaction are determined to ensure the achievement of a content of cyclohexyl hydroperoxide of 1.5 wt % in the products of oxidation. The regularities of the epoxidation reaction of the synthesized cyclohexyl hydroperoxide with cyclohexene in the presence of an ammonium paramolybdate catalyst are analyzed.Conclusions. Epoxidation of cyclohexene with cyclohexyl hydroperoxide produced epoxycyclohexane at a yield of 80–90% and a conversion of cyclohexane hydroperoxide of 85%.

Joint Production Cost Allocation in Determining Cost of Goods Production to Optimize Profits

PT Kemang Food utilizes the selling price method and the average per unit method for allocating joint production costs to its main products and by-products. The company produces sausages, burgers, delicatessen, meatballs, and a by-product consisting of beef and MDM (Mechanically Deboned Meat) from chicken esophagus, breastbone, and thigh. The study reveals that, according to the profit achievement policy and the targeted cost calculation, the selling price method is more profitable than the average per unit method. The profit obtained through the selling price method exceeds that of the average per unit method. Despite this, both methods experienced a decline in profits in 2020 due to the COVID-19 pandemic, as evidenced by trend analysis. Managerial implications stress the significance of accurate cost determination for optimizing company profits, especially during challenging times such as the pandemic. This underscores the need for adaptability in cost allocation strategies to maintain financial health and achieve optimal production costs in the face of external disruptions. The findings emphasize the importance of strategic decision-making in managing joint production costs for sustainable profitability

The dynamic role of technological innovations and energy structure in China's industrial coal consumption growth: a joint production theoretical decomposition analysis.

China's energy-intensive industries utilize the leading proportion of coal to meet the demand for its industrial outputs, while on the other hand, these industries also assure the provision of livelihood to millions of people, and capping the share of coal consumption for these industries can adversely affect the industrial and economic growth of China. Thus, to achieve the Pareto improvement between environmental pollution and industrial output growth, it is essential to comprehend the patterns of coal consumption in these industries. Hence, the present research intended to analyze the potential drivers of coal consumption by applying a joint LMDI, DEA, and the production theoretical decomposition approach. Findings indices that, first, industrial output growth was the crucial driver to simulate the industrial coal consumption, while the potential coal intensity and coal technology changes exhibited the reverse effect. Second, the coal inputs and industrial output efficiency, along with the improvements in technological gaps, were found to be the imperative factors in decelerating coal consumption. Third, the energy industrial group was discovered to have more potentials of coal conversation as compared to the non-energy industrial group. Moreover, results also indicated that coal pure technical efficiency is accelerating coal growth, which revealed that coal can be saved by enhancing coal allocative efficiency. These findings laid the empirical ground to design a feasible coal conservation policy for achieving the imperative goals of environmental protection without compromising industrial output growth.

Theoretical and empirical approach to how a professorship is organized in the German higher education system and how the organizational process works

In this article, we explore the question of how membership, hierarchy, rules, monitoring, and sanctions are used at German professorships to organize research. Using these five criteria of an organization from Ahrne and Brunsson (Organization, 18(1):83–104, 2011) as a theoretical pattern, we shed light on the meso-level of universities in the German higher education system—the professorship. It is at this level that the collaborative production of research is organized. We show which organizational mechanisms are necessary for this joint production process, how the practical implementation and interpretation of rules as an organizational process take place at the professorships, as well as various negotiations and sanctions. In the German higher education system, professors are the superiors of their academic staff. The professor decides on the hiring and renewal of employees and is the supervisor of doctoral candidates, who in the German higher education system are mostly employed as research assistants. To illustrate the characteristics of the criteria, we draw on empirical material from mixed-methods research, which made it possible to contrast and substantiate the special features of professorships in Germany from different perspectives and data.

Joint production and energy supply planning of an industrial microgrid

Joint production and energy supply planning of an industrial microgrid

ПАМЯТНИК АРХЕОЛОГИИ «КОКШАРОВСКИЙ ХОЛМ — ЮРЬИНСКОЕ ПОСЕЛЕНИЕ»: НЕКОТОРЫЕ АСПЕКТЫ СОЦИОКУЛЬТУРНОЙ ИНТЕРПРЕТАЦИИ

Fixation in the cultural layer of the archaeological site of all ceramic types of the Trans-Ural region: early Neolithic (the last third of the 7th — the turn of the 6th–5th millennium BC) the Koshkino and the Koksharovsko-Yur’inskaya (Kozlovo) cultures, Late Neolithic (the turn of the 6th–5th millennium BC — the middle of the 5th millennium BC) of the Poludenskaya and the Basyanovskaya (local variant of the Boborykino) cultures, allows setting the tasks of the relationship of these complexes from the point of view of solving not only the “classical” problems of archaeology: typology, stratigraphy, absolute and relative chronology, etc. but also some socio-cultural interpretations. On the materials of such a specific source as an archaeological one, the solution of such problems is available in the analysis of only some archaeological sites. The authors of the article state, firstly, the dual nature of the social organization of primitive collectives within the heterogeneous community that created this unique archaeological complex, especially manifested in the early Neolithic stage in the face of the Koshkino and the Koksharovsko-Yur’inskaya population groups, whose activities were sealed by both joint production and cult practices and, most likely, the commonality of family and marriage relations, which was based on the principle of exogamy. Secondly, the authors assume for the Koksharovsky Kholm sanctuary the status of a cult place not only of a local district, but as an interregional center of a significant sociocultural space. Thirdly, one can observe the preservation in the Late Neolithic time of the microlithic flint processing technique, which in the Basyanovo community could have performed not only a production, but also a cult function. Fourthly, at the origins of the functioning of the “Koksharovsky Kholm — Yur’inskoe Settlement” archeological site was, most likely, the Koshkino group of population.

Study on interfacial morphologies of AA1060 and SS321 magnetic pulse welded joints

In this study, the application of magnetic pulse welding was employed for the production of tubular joints using 1060 aluminium and 321 stainless steel. Two crucial process parameters, the charging voltage, and the gap between the outer and inner tubes, were subjected to mechanical property tests and morphology analysis. The joints that exhibited favourable mechanical properties were obtained with a gap size of 1.25 mm and a charging voltage exceeding 3.5 kV. The presence of intermetallic compounds at the joint interface indicates the occurrence of fusion in the transition zone. The quantity of molten metal increased with an increase in the charging voltage. The aluminium content in the intermetallic compounds within the transition zone decreased as one moved from the 1060 aluminium side towards the 321 stainless steel side. The gap distance plays an important role in determining the efficiency of energy transformation at the joint interface during magnetic pulse welding (MPW). A smaller gap distance resulted in a substantial amount of energy being transformed into plastic deformation in the transition zone. Conversely, a greater gap distance led to a significant amount of energy from the electrical charging voltage being converted into thermal energy. The MPW joint consisted of bonding, mechanical interlock, and non-bonding regions. The mechanical properties of the joint were influenced by the composition of the intermetallic compound. Taking into account the impact of morphologies and elastic modulus of the transition zone, an increase in the melting of stainless steel during the welding process was found to be advantageous for the MPW of 1060 aluminium to 321 stainless steel.

ОПТИМІЗАЦІЯ ПЛАНІВ ВИРОБНИЦТВА ТА ДОСТАВКИ ПРОДУКЦІЇ В ЛОГІСТИЧНИХ ЛАНЦЮГАХ З ВРАХУВАННЯМ ВИТРАТ ПІДПРИЄМСТВА НА МАРКЕТИНГ

In the article static model of enterprise interaction planning of supply chains within the framework of VAT-classification into account the marketing activity of a plant analyzed. The two-level system of A type is under consideration. The model describes the co-ordination among main participants of supply chain with the aim to optimize the total logistic costs for production and transportation of finished products. It is supposed that there are several plants-suppliers for manufacturing of complete set for a single plant which manufactures the finished products. It is considered that all enterprises-suppliers produce different complete sets. All produced in factories supplying complete sets are purchased by the manufacturer, which produces the final product of several items. Manufactured end products arrives at the warehouse, where it must be delivered to destinations within a few points of transshipment. It is possible to consider that in transfer points production of manufacturer is overloaded from one type of transport on another. It is supposed that demand for finished products is a some increasing function of advertising costs. The concrete form of such dependence may be found in result of corresponding market’s analyses for previous period. In more simple case it may be the linear dependence. It is supposed also that expected demand without cost for advertising is known in result of market analyses. This optimization model allows us to find out the optimal joint production and transportation plans and optimal advertising costs maximizing the total profit of enterprise. The experimental calculationsshow that interaction of marketing and logistics conceptions allows not only to increase the effectiveness of supply chain functioning as a whole but its every link, as well. In the future research, it is possible to perform different generalizations of results, given in the present article, for example, for investigation of more general optimization models and to study oligopolies for static and dynamic models of optimization of production plans innovative and marketing activity of enterprises-manufacturers.

Balancing Profitability and Social Impact: A Joint Product Line Design and Supply Chain Network Design Formulation

Balancing Profitability and Social Impact: A Joint Product Line Design and Supply Chain Network Design Formulation

"Professionals Talk Logistics": Why Resupplying Taiwan in a Future War Will Be Harder Than Resupplying Ukraine

executive summary: This article compares the logistical challenges associated with the West's military resupply of Ukraine and those of resupplying Taiwan in a potential future conflict. main argumentDespite facing critical munitions shortages and growing political divisiveness over the substantial financial burden of this policy, the West's resupply of the Ukrainian military during Ukraine's current war with Russia has—so far—been a success, keeping forces battle-worthy and able to continue fighting after nearly two years of high-intensity conventional warfare. Would the resupply of Taiwan against China in wartime be similarly feasible for the U.S. and its regional partners in the Pacific? Major obstacles distinguish the Taiwan scenario. In prioritizing planning for a Taiwan contingency, the U.S. government should consider five major logistical factors: geopolitical ambiguity, the tyranny of distance, the need to resupply by air and sea, the involvement of reliable regional partners, and China's tolerance for the supply of armament to Taiwan in wartime. policy implications• Pre-positioning war materiel forward on allied soil is crucial to enable a rapid response to any military aggression against Taiwan. Besides increasing stocks of arms and ammunition in Taiwan itself, materiel should be pre-positioned with short reach to Taiwan in Japan, South Korea, and the Philippines and closely linked with depots in Guam, Hawaii, Australia, and the continental U.S. in a hub-and-spoke framework. • To assist Taiwan in establishing reserves of arms and munitions, the U.S. should increase technology transfer and joint production of critical war materiel with and in Taiwan. Boosting Taiwan's own defense industry base will help ensure the security of supply and an independent maintenance, repair, and overhaul capability in a conflict. Moreover, to ensure the materiel survives, hardening, decentralization, and the ability to disperse at least parts of the industrial production and maintenance, repair, and overhaul capability should be advanced. • In a war across the Taiwan Strait, Taiwanese ports and airports would come under attack early on, and even if they were not destroyed, the People's Liberation Army would try to block access to them, hindering resupply efforts. Strong emphasis should be placed on the development of robust amphibious and civilian roll-on/roll-off capabilities, buildup of temporary piers, and improvement of Taiwan's transportation infrastructure.

Sustainable Furniture Joints: Leveraging Fused Deposition Modeling (FDM) for Eco-Friendly Design

Integrating form, function, and material selection has been fundamental in furniture design and production. Traditional methods, particularly in joint creation, demand skilled craftsmanship and time-intensive processes. However, the emergence of 3D printing technology, specifically fused deposition modeling (FDM), has revolutionized furniture joint production. This study investigates the sustainable application of FDM for creating furniture joints, emphasizing eco- friendly design and efficient material utilization. To optimize the joinery system using 3D printing, researchers have conducted structured interviews with experts in the Malaysian 3D printing field. Their insights guided the development of guidelines for selecting appropriate materials and optimizing joint geometries. In furniture manufacturing, FDM enables precise joint components through layer-by- layer construction using thermoplastic materials. Unlike traditional methods that often result in wood waste, FDM minimizes material consumption. Designer- generated joint designs produced seamlessly via 3D printing reduce production time and enhance precision. Cost-effectiveness further positions FDM as a sustainable alternative for furniture production. This research focuses on two commonly used FDM materials: Acrylonitrile Butadiene Styrene (ABS) and Polylactic Acid (PLA). By providing guidelines for selecting appropriate materials, it will eventually empower designers and manufacturers to create furniture joints that align with sustainability goals. The resulting joints exhibit superior accuracy compared to manual craftsmanship, contributing to both environmental conservation and innovation within the Malaysian furniture industry

Gli accordi Anica-Mpea e l’impiego dei capitali americani nel nostro cinema / Parte 2 – Dal finanziamento dei film al finanziamento dell’Anica

The agreements between the industrial and trade organizations ANICA and MPAA/MPEA regulated Italian-American film relations between 1951 and 1962, promoting the growth of “Runaway productions” and joint productions in Italy, but also supporting the distribution of Italian films abroad by US companies. The article, based on extensive archival research, reconstructs for the first time the development and implementation of these agreements, also following the paths of American money in Italian cinema.

Flow Profile Estimating in production wells based on chemical composition of fluids (an example on Volga-Ural Petroleum and Gas Province)

Current problems in mature oil fields are high water cut and flow profile estimating of oil and associated brines from different layers. To establish the flow profile in production wells, geophysical research (Production Logging) is traditionally used by lowering special equipment into the well. Production Logging requires production stops and labor costs. Geochemical methods (Production Geochemistry) are used as an alternative solution: sampling is simple and efficient, which makes it possible to cover all the interesting area. Moreover, sampling does not require stopping the well. The geochemical method uses individual indicators of the composition of formation fluids produced from different perforation intervals. In this work, geochemical studies were carried out using wellhead samples from more than 100 wells, with single perforation for carbonate and terrigenous reservoirs. Some wells have joint exploitation of these formations. An automated algorithm was used to identify the distinctive characteristics of each formation based on the composition of the produced brines and oils. Data on the chemical composition of fluids from different development objects made it possible to determine the flow profiles in wells with joint production. Based on the results of the studies, the Devonian reservoir of the field under consideration is divided into 2 parts – northern and southern, which differ in the chemical composition of formation fluids. The same separation of the deposits into 2 parts is noted by field development analysis: over the past 50 years, the main production of oil and associated brines has been concentrated in the southern part of the deposit, confined to the fault, where the active work of the aquifer is assumed. It is recommended to use the obtained data for history matching of the reservoir simulation model.

A Roadmap for Domiciling Tablet Industry in Developing Countries: India and Egypt

Developing countries are increasingly adopting in-house Tablet manufacturing as a result of the cost-effectiveness and significance of tablets. This paper provides a comparative insight into the Tablet manufacturing industry, focusing on Egypt and India. Tablet manufacturing and use in the educational institutions of both nations are ambitious endeavors. Further resemblances can be observed in terms of population and economic obstacles. Despite the Egyptian and Indian initiatives commencing concurrently, the Indian initiative has accumulated more substantial accomplishments. The research examines the tablet computer industry in Egypt along three technological axes: domestic manufacturing, joint production, and contracting with international manufacturing firms. The industry challenges faced by Egypt are analyzed and provide suggestions for the development of this critical sector, with a specific focus on the education industry.

Agent-based Decision Making and Control of Manufacturing System Considering the Joint Production, Maintenance, and Quality by Reinforcement Learning

Taking an integrated approach towards production, maintenance, and control in manufacturing systems is crucial due to the profound impact of their interconnections. Investigating these aspects in isolation may lead to infeasible solutions. This research focuses on the real-time and autonomous decision-making process concerning joint production planning, maintenance, and quality problems in a stochastic deteriorating production system with limited maintenance activities. Formulating the problem as a continuous semi-Markov decision process accounts for the complexities of the real production system and the occurrence of events over an uneven and continuous period. While dynamic programming is a common tool for addressing joint optimization problems, it has limitations, such as the curse of dimensionality. In this study, the optimal policy of the decision-maker agent is obtained by the goal-directed machine learning method called (R-SMART) and agent-based modeling. To the author's knowledge, the proposed approach is novel, and there is little research on such an implementation of the joint optimization problem. The quality of the optimal policy is evaluated through heuristic and simulation-optimization methods in various scenarios. The results demonstrate that the proposed RL-based method outperforms others in most scenarios, achieving a stable, integrated optimal policy.

Revitalizing Rural Wealth: Uncovering the Potential of Local Resources through Coffee Cake and Jackfruit Cake Innovations for Sustainable Community Development

The aim of this service is to empower local economic members to build a coffee cake and jackfruit cake business that will increase the income of rural residents, supporting sustainable local economic development. The service method used is joint product development to develop new cake variants with sustainable innovation involving culinary experts, local business actors and the local community. The research results obtained from this service increase local income. Adding production and sales of jackfruit cake and coffee increases the income of rural communities. The implication of this service is strengthening local identity, increasing knowledge about the richness of local culture and making tourists interested in local culinary delights. Therefore, through innovation in coffee cake and jackfruit cake, this project is expected to help sustainable development and welfare of rural communities.
 Highlights : 
 
 Joint Collaboration: Involving culinary experts, local businesses, and the community in joint product development fosters collaboration for sustainable innovation.
 Economic Impact: The introduction of coffee cake and jackfruit cake contributes to increased income, supporting local economic development in rural areas.
 Cultural Enrichment: The project enhances local identity, promotes cultural richness, and attracts tourists through the innovation in coffee and jackfruit cakes.
 
 Keywords : Coffee Cake and Jackfruit Cake, Sustainable Community Development, Rural Wealth, Culinary Diversity, Rural Economic Empowerment

Development of a Joint Concept for Producing Dissimilar Joints Using a 3D Printing-Supported Technique

The joining of metals and polymer-based materials has a very high interest for many industrial sectors, as it allows to achieve components combining the specific characteristics of each material class. Additive manufacturing technologies could boost the production of these joints, allowing the controlled deposition of a polymeric material over the metal substrate. The present research is aimed to study the feasibility of a joint concept that can be used to produce aluminium/polymer-based material joints through a 3D printing-supported technique. The innovative joint concept, which is based on an interlocking mechanism promoted by a deposited pin, was compared to two conventional concepts. The innovative joint concept allows the production of samples with good mechanical behaviour, in which the failure occurs outside the material overlapping zone. This design is very suitable to be tested for the production of dissimilar material joints.

Effect of microwave hybrid susceptors on the interface morphology, mechanical properties and fracture morphology of Cu/nano-Sn-3.0Ag-0.5Cu/Cu joints

The utilization of microwave hybrid heating in the field of low-temperature joining presents a notable benefit of delivering both selective and uniform heating, a feature that is not commonly observed in traditional welding methods. This work utilized numerical simulation to predict the heating effects of three susceptors. Furthermore, the impacts of susceptor variants on the interface morphology, mechanical properties, and fracture morphology of the Sn-3.0 Ag-0.5 Cu joint were studied. In the current study, the normal MHH technique was utilized with parameters of 900 W and 240 s to achieve successful joint production. According to the numerical simulation, the heating rate of carbon powder as a susceptor was found to be greater than that of graphite, while silicon carbide susceptor exhibited the slowest heating rate. Nevertheless, the combustion of carbon powder during the MHH process poses a potential risk to the integrity of the microwave cavity. As a result, graphite powder was selected as a more suitable susceptor. The experimental findings indicate that the shear strength of the joint with silicon carbide and charcoal as the susceptor is 75.4 % and 91.0 % of that with graphite as the susceptor, respectively. The fracture modes of the three samples with various susceptors are mixed fracture.