Concurrent Engineering (CE) is an effective way for enterprises to reengineer the product development processes and to improve the product development abilities. In this paper, the existing status of product developme...Concurrent Engineering (CE) is an effective way for enterprises to reengineer the product development processes and to improve the product development abilities. In this paper, the existing status of product development in Chinese manufacturing industry is analyzed, and the requirements of manufacturing technology for them are investigated. An overview of our CE R&D work is introduced, including product modeling, DFA, DFM, QFD, PDM, and other enabling technologies. A case study of the CE pilot project is discussed. The industrial implementation and application in Chinese enterprises are summarized.展开更多
After decades of civil war,Yemen is in a desperate situation,and the construction industry has been suffering from low productivity and poor performance.In order to improve the productivity for the Yemeni construction...After decades of civil war,Yemen is in a desperate situation,and the construction industry has been suffering from low productivity and poor performance.In order to improve the productivity for the Yemeni construction industry,Construction enterprises must adopt the best and new technologies,new management concepts and philosophies such as Total Quality Management(TQM)and concurrent engineering(CE)owing to achieve improvements in the process of product development.To ensure the successful implementation of CE in the Yemeni construction industry,it is necessary to assess the readiness of those companies to implement CE.In this paper,the BEACON model is used to assess the readiness of the Yemeni companies to implement the concept of CE,that assist in overcoming the construction industry's poor productivity and performance.A study assessing CE implementation readiness will help to promote successful CE implementation in the construction industry and enhance the efficiency of construction companies.The results show that most of the construction companies in the Yemen are not ready to implement CE.The main reason is that the enterprises rely heavily on traditional management methods,and need to improve the organization and management technology.The research results can provide theoretical support for construction companies,especially Yemen companies,to establish basis in implementing an appropriate CE approach for improving performance,and also help international construction companies entering the Yemen construction market to cooperate and implement CE.展开更多
目的系统评价奈达铂联合紫杉醇同步放化疗治疗中晚期宫颈癌的效果与安全性。方法在中国知网、万方数据库、维普、中国生物医学文献数据库、Medline数据库、EMbase、PubMed、Web of Science中检索有关中晚期宫颈癌应用奈达铂联合紫杉醇...目的系统评价奈达铂联合紫杉醇同步放化疗治疗中晚期宫颈癌的效果与安全性。方法在中国知网、万方数据库、维普、中国生物医学文献数据库、Medline数据库、EMbase、PubMed、Web of Science中检索有关中晚期宫颈癌应用奈达铂联合紫杉醇同步放化疗治疗的随机对照试验(RCT),检索时限截至2022年7月,两名研究员独立阅读、筛选、提取资料并评价质量后,采用RevMan 5.4软件进行meta分析。结果共纳入22项RCT试验共计1627例患者,meta分析结果显示,与单纯放疗相比,奈达铂联合紫杉醇同步放化疗可显著提高患者的近期疗效[RR=1.59,95%CI(1.44,1.74),P<0.00001]和总生存率[RR=1.29,95%CI(1.21,1.37),P<0.00001];安全性指标差异均无统计学意义(P>0.05)。结论对于中晚期宫颈癌,奈达铂联合紫杉醇同步放化疗效优安全,可作为未来中晚期宫颈癌放化疗方案的新选择。但文章仍存在诸多局限性,有待更多高质量RCTs进一步验证并丰富研究结果。展开更多
文摘Concurrent Engineering (CE) is an effective way for enterprises to reengineer the product development processes and to improve the product development abilities. In this paper, the existing status of product development in Chinese manufacturing industry is analyzed, and the requirements of manufacturing technology for them are investigated. An overview of our CE R&D work is introduced, including product modeling, DFA, DFM, QFD, PDM, and other enabling technologies. A case study of the CE pilot project is discussed. The industrial implementation and application in Chinese enterprises are summarized.
基金This paper was part of a research work sponsored by the National Thirteenth-Five-year Research Program of China(Project No.:2018YFC0705901)The authors would like to thank the anonymous reviewersfor their valuable comments and suggestions to improvethe quality of the paper. They also gratefully acknowledgethe Public Works Office in Yemen for facilitating duringthe data collection stage.
文摘After decades of civil war,Yemen is in a desperate situation,and the construction industry has been suffering from low productivity and poor performance.In order to improve the productivity for the Yemeni construction industry,Construction enterprises must adopt the best and new technologies,new management concepts and philosophies such as Total Quality Management(TQM)and concurrent engineering(CE)owing to achieve improvements in the process of product development.To ensure the successful implementation of CE in the Yemeni construction industry,it is necessary to assess the readiness of those companies to implement CE.In this paper,the BEACON model is used to assess the readiness of the Yemeni companies to implement the concept of CE,that assist in overcoming the construction industry's poor productivity and performance.A study assessing CE implementation readiness will help to promote successful CE implementation in the construction industry and enhance the efficiency of construction companies.The results show that most of the construction companies in the Yemen are not ready to implement CE.The main reason is that the enterprises rely heavily on traditional management methods,and need to improve the organization and management technology.The research results can provide theoretical support for construction companies,especially Yemen companies,to establish basis in implementing an appropriate CE approach for improving performance,and also help international construction companies entering the Yemen construction market to cooperate and implement CE.
文摘目的系统评价奈达铂联合紫杉醇同步放化疗治疗中晚期宫颈癌的效果与安全性。方法在中国知网、万方数据库、维普、中国生物医学文献数据库、Medline数据库、EMbase、PubMed、Web of Science中检索有关中晚期宫颈癌应用奈达铂联合紫杉醇同步放化疗治疗的随机对照试验(RCT),检索时限截至2022年7月,两名研究员独立阅读、筛选、提取资料并评价质量后,采用RevMan 5.4软件进行meta分析。结果共纳入22项RCT试验共计1627例患者,meta分析结果显示,与单纯放疗相比,奈达铂联合紫杉醇同步放化疗可显著提高患者的近期疗效[RR=1.59,95%CI(1.44,1.74),P<0.00001]和总生存率[RR=1.29,95%CI(1.21,1.37),P<0.00001];安全性指标差异均无统计学意义(P>0.05)。结论对于中晚期宫颈癌,奈达铂联合紫杉醇同步放化疗效优安全,可作为未来中晚期宫颈癌放化疗方案的新选择。但文章仍存在诸多局限性,有待更多高质量RCTs进一步验证并丰富研究结果。
