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Copyright of Light Industry Machinery is the property of Light Industry Machinery Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Operations Research Transactions / Yunchouxue Xuebao is the property of Editorial office of Operations Research Transactions and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper studied the integrated production and distribution scheduling problem in assembly flexible Job-Shop under distributed manufacturing environment. Combined with actual production situations, taking into account the inventory costs with production and distribution under the supply chain, this paper proposed an improved whale algorithm with the objective of minimizing the total cost of production and distribution as the joint scheduling optimization. For the multi-stage scheduling process of joint scheduling, this paper developed a five-level coding strategy based on process, product, plant, machine and vehicle. According to the characteristics of each stage, this algorithm designed corresponding hybrid population initialization strategies to improve the quality of the solution. To enhance the global exploration and local search capability of the algorithm, it improved a search operation of whale foraging and proposed four neighborhood structures with the orientation of strengthening the connection between individual leader whale and ordinary whale individuals. Finally, this paper compared multiple algorithms in related research areas to verify the advantages of the proposed algorithm in terms of convergence speed and solution quality, and compared joint scheduling with phased scheduling to verify the superiority of joint scheduling through simulation experiments. [ABSTRACT FROM AUTHOR]

Copyright of Electric Power Automation Equipment / Dianli Zidonghua Shebei is the property of Electric Power Automation Equipment Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of East China University of Science & Technology is the property of Journal of East China University of Science & Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

For the traditional supply chain information asymmetry caused by the extra inventory cost and poor demand forecasting accuracy and other damage to the profit of each subject, combined with the core advantages of blockchain,such as decentralization, distrust, traceability and tamper-proof, this paper took the three-level supply chain composed of manufacturers, sellers and two third-party logistics enterprises as the research object. By using blockchain technology and not using blockchain technology,this paper established the game model between enterprises on the chain, and analyzed the optimal strategy of each node enterprise under the game model. By comparing the optimal benefits before and after the use of blockchain technology, it was clear for the application strategy and application conditions of blockchain technology in the supply chain to create a favorable environment for win-win cooperation between upstream and downstream enterprises in the supply chain. Finally,this paper verified the correctness of the conclusion through numerical analysis. [ABSTRACT FROM AUTHOR]

This paper developed a joint optimization model based on two-stage time delay model to solve the production and maintenance problems of multi-product production components series production system. First, by using the production cycle segmentation theory, the whole cycle divided into several unit time periods. Production activities and maintenance activities shared each period,and the production system carried out preventive maintenance after a number of time periods. Second, based on the constraints between actual production time and available production time, this paper established the minimum total cost model. The maintenance considered the cost of defect and failure maintenance, cost of maintenance and inspection, and the cost of loss of unqualified products that might arise from the operation of equipment under abnormal conditions. Production took into account production costs, inventory costs, delayed non-delivery costs and equipment start-up costs to restore production after maintenance shutdown. Finally, by an example, it calculated the optimal preventive maintenance cycle and the output of each product in each unit time period to verify the validity of the proposed model. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Dalian University of Technology / Dalian Ligong Daxue Xuebao is the property of Journal of Dalian University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Systems Engineering & Electronics is the property of Journal of Systems Engineering & Electronics Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Clean Coal Technology is the property of Clean Coal Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The article discusses a research regarding the idea of the total production costs of the astronomical instrument Jihengfuchen Yi in the Qing Dynasty, and states that price changes can be obtained through a comparative analysis of the budget and the cost inventory of the instrument.