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This paper presents a remanufacturing process planning and resource scheduling method. A color Petri net is proposed to model the dynamics in remanufacturing, such as various process routings and different processing times for components in the same process. A hybrid meta-heuristic using simulated annealing and tabu search is also proposed to derive the optimal process plan and schedule that minimize...
Aim: To investigate the clinical therapeutic efficacy of saccharomyces boulardii(Sb) in combination with mesalazine in patients with mild to moderate ulcerative colitis (UC). Methods: Sixty patients aged 18 to 75 years with mild to moderate UC were divided into two groups, the combination group and the mesalazine group. Clinical remission rate (CRR) was calculated with the formula: CRR= number of...
Aim: To investigate incidence of depression and its risk factors in inpatients with gastrointestinal diseases in department of gastroenterology of general hospital. Methods: A hospital cross-sectional study was performed. HAMD and SDS were used to assess the depression scores in 338 inpatients with GI diseases in department of gastroenterology of the First Affiliated Hospital of Dalian Medical University...
Vertical integration is significant in achieving better student comprehension of the connections among topics and concepts covered in various courses taught during the same or different semesters of the curriculum. Students realize that the courses are part of a flow that contributes to a knowledge base without artificial boundaries rather than being separate bodies of knowledge. In this paper, vertical...
A method is presented for the robust control of a disassembly system that undergoes process plan variations due to heterogeneity of demands and product conditions. Two colored timed Petri net (CTPN) models is proposed and extended for the hierarchical modeling of both the system architecture and disassembly plans corresponding to the products to be processed. To address the high levels of uncertainty...
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