Modular technology can effectively support the rapid design of products, and it is one of the key technologies to realize mass customization design. With the application of product lifecycle management(PLM) system in ...Modular technology can effectively support the rapid design of products, and it is one of the key technologies to realize mass customization design. With the application of product lifecycle management(PLM) system in enterprises, the product lifecycle data have been effectively managed. However, these data have not been fully utilized in module division, especially for complex machinery products. To solve this problem, a product module mining method for the PLM database is proposed to improve the effect of module division. Firstly, product data are extracted from the PLM database by data extraction algorithm. Then, data normalization and structure logical inspection are used to preprocess the extracted defective data. The preprocessed product data are analyzed and expressed in a matrix for module mining. Finally, the fuzzy c-means clustering(FCM) algorithm is used to generate product modules, which are stored in product module library after module marking and post-processing. The feasibility and effectiveness of the proposed method are verified by a case study of high pressure valve.展开更多
Mass Customization and global economic collaboration drives the product development and management beyond internal enterprise to cover the whole product value chain. To meet such requirement, a strategy approach focus...Mass Customization and global economic collaboration drives the product development and management beyond internal enterprise to cover the whole product value chain. To meet such requirement, a strategy approach focusing on data organization for product lifecycle management was promoted. The approach takes product platform as the base, view engine and rule-based access as data access mechanism, and integration and collaboration bus as a enabler to allow participants involved in product lifecycle to get convenient, WEB-based access to the internal and external content, applications, and services.展开更多
Human amnion mesenchymal cells （AMCs） contain muhipotent cells. To enrich such muhipotent stem cells, we applied to AMCs the new method for the isolation of side population （SP） cells used for the enrichment of mu...Human amnion mesenchymal cells （AMCs） contain muhipotent cells. To enrich such muhipotent stem cells, we applied to AMCs the new method for the isolation of side population （SP） cells used for the enrichment of muhipotent stem cells from many tissues. We succeeded in obtaining SP cells from AMCs （AMC-SP cells）. AMC-SP cells were found in 0.2 % of AMCs, irrespective of the length of pregnant period, ranging from 37 to 40 weeks. Cell cycle analyses suggested that AMC-SP cells belonged to a cell population that proliferated very slowly and/or was in a quiescent state in the amniotic membrane. Upon culturing, they proliferated with 40 to 80 cell doublings. However, they did not form colonies in a soft agarose culture, whereas HepG2 cells, representative human hepatoma cells formed many large colonies. These results suggest that AMC-SP cells that have considerable value for the use of regenerative medicine can be managed safely in vitro.展开更多
The paper reports the results of a field study which was carried out at the Language Centre of the University of Naples and originated in the observation that learning the Italian language was not perceived by ab init...The paper reports the results of a field study which was carried out at the Language Centre of the University of Naples and originated in the observation that learning the Italian language was not perceived by ab initio students as connected to their personal and academic experiences. The claim of this research is that a procedural syllabus based on texts and tasks facilitates both the acquisition of Italian as a foreign language and the integration of language and content. Each text proposed to the learners was accompanied and enhanced by pre-, while-, and production-tasks. A particular emphasis was assigned to noticing and attention management tasks in the pre and while phase Production tasks in a later phase favoured interlanguage development by combining representational structures with controlled attention. The method of the study was a combination of qualitative and quantitative approach at any stage. Measures for written production during the course and to assess final exams were： Holistic Rating （fluency and creativity）, Accuracy Ratios （intelligibility index and error index）, and Complexity Ratios （dependent and coordinate clauses per t-units ratio and re-elaboration of a model or text type）. At the final exams, Texts and tasks learners outperformed non-texts and tasks learners. In conclusion, an input related to personal and/or academic interests, to be processed through tasks, allowed learners a rapid interlanguage change and development展开更多
Peacekeeping missions are increasingly becoming the main focus of military organisations. In contrast with Cold War era, countries are no longer expecting an all out conventional conflict between countries. The contem...Peacekeeping missions are increasingly becoming the main focus of military organisations. In contrast with Cold War era, countries are no longer expecting an all out conventional conflict between countries. The contemporary conflicts are often civil strives with the militaries expected to assist to end them. The tasks extend beyond the traditional military roles of separating warring parties to assisting in reconstruction of the war-torn areas. These tasks place a tremendous demand of the skills possessed by soldiers. To be effective and make meaningful contributions, soldiers are expected to assist in tasks such as negotiations, construction, building roads and bridges. Furthermore, they are also needed to provide traditional security, assist in the initial process of managing government projects and providing essential services such as medical assistance and providing teachers. These additional roles place education at a centre-stage. It becomes necessary for educational offerings to be broadened beyond military-related modules to include other fields such as governance, public development and finance. This shift is necessitated by the realisation that the premature withdrawal of the military and handing over to civilian authorities has more deleterious effects. Furthermore, the inability of stability to be retained in a country threatens not only the security of the country at war but the region and international stability are also at stake.展开更多
基金Project(51275362)supported by the National Natural Science Foundation of ChinaProject(2013M542055)supported by China Postdoctoral Science Foundation Funded
文摘Modular technology can effectively support the rapid design of products, and it is one of the key technologies to realize mass customization design. With the application of product lifecycle management(PLM) system in enterprises, the product lifecycle data have been effectively managed. However, these data have not been fully utilized in module division, especially for complex machinery products. To solve this problem, a product module mining method for the PLM database is proposed to improve the effect of module division. Firstly, product data are extracted from the PLM database by data extraction algorithm. Then, data normalization and structure logical inspection are used to preprocess the extracted defective data. The preprocessed product data are analyzed and expressed in a matrix for module mining. Finally, the fuzzy c-means clustering(FCM) algorithm is used to generate product modules, which are stored in product module library after module marking and post-processing. The feasibility and effectiveness of the proposed method are verified by a case study of high pressure valve.
文摘Mass Customization and global economic collaboration drives the product development and management beyond internal enterprise to cover the whole product value chain. To meet such requirement, a strategy approach focusing on data organization for product lifecycle management was promoted. The approach takes product platform as the base, view engine and rule-based access as data access mechanism, and integration and collaboration bus as a enabler to allow participants involved in product lifecycle to get convenient, WEB-based access to the internal and external content, applications, and services.
基金Scientific Research Common Program of Beijing Municipal Commission of Educationgrant number:KM200810025009+1 种基金Beijing Special Funds to Aid Returned Studentsgrant number:20080015
文摘Human amnion mesenchymal cells （AMCs） contain muhipotent cells. To enrich such muhipotent stem cells, we applied to AMCs the new method for the isolation of side population （SP） cells used for the enrichment of muhipotent stem cells from many tissues. We succeeded in obtaining SP cells from AMCs （AMC-SP cells）. AMC-SP cells were found in 0.2 % of AMCs, irrespective of the length of pregnant period, ranging from 37 to 40 weeks. Cell cycle analyses suggested that AMC-SP cells belonged to a cell population that proliferated very slowly and/or was in a quiescent state in the amniotic membrane. Upon culturing, they proliferated with 40 to 80 cell doublings. However, they did not form colonies in a soft agarose culture, whereas HepG2 cells, representative human hepatoma cells formed many large colonies. These results suggest that AMC-SP cells that have considerable value for the use of regenerative medicine can be managed safely in vitro.
文摘The paper reports the results of a field study which was carried out at the Language Centre of the University of Naples and originated in the observation that learning the Italian language was not perceived by ab initio students as connected to their personal and academic experiences. The claim of this research is that a procedural syllabus based on texts and tasks facilitates both the acquisition of Italian as a foreign language and the integration of language and content. Each text proposed to the learners was accompanied and enhanced by pre-, while-, and production-tasks. A particular emphasis was assigned to noticing and attention management tasks in the pre and while phase Production tasks in a later phase favoured interlanguage development by combining representational structures with controlled attention. The method of the study was a combination of qualitative and quantitative approach at any stage. Measures for written production during the course and to assess final exams were： Holistic Rating （fluency and creativity）, Accuracy Ratios （intelligibility index and error index）, and Complexity Ratios （dependent and coordinate clauses per t-units ratio and re-elaboration of a model or text type）. At the final exams, Texts and tasks learners outperformed non-texts and tasks learners. In conclusion, an input related to personal and/or academic interests, to be processed through tasks, allowed learners a rapid interlanguage change and development
文摘Peacekeeping missions are increasingly becoming the main focus of military organisations. In contrast with Cold War era, countries are no longer expecting an all out conventional conflict between countries. The contemporary conflicts are often civil strives with the militaries expected to assist to end them. The tasks extend beyond the traditional military roles of separating warring parties to assisting in reconstruction of the war-torn areas. These tasks place a tremendous demand of the skills possessed by soldiers. To be effective and make meaningful contributions, soldiers are expected to assist in tasks such as negotiations, construction, building roads and bridges. Furthermore, they are also needed to provide traditional security, assist in the initial process of managing government projects and providing essential services such as medical assistance and providing teachers. These additional roles place education at a centre-stage. It becomes necessary for educational offerings to be broadened beyond military-related modules to include other fields such as governance, public development and finance. This shift is necessitated by the realisation that the premature withdrawal of the military and handing over to civilian authorities has more deleterious effects. Furthermore, the inability of stability to be retained in a country threatens not only the security of the country at war but the region and international stability are also at stake.
