The architecture of project management of distributed concurrent product design in a virtual enterprise is put forward. T he process of project management and its functions are presented. Product design process coo...The architecture of project management of distributed concurrent product design in a virtual enterprise is put forward. T he process of project management and its functions are presented. Product design process coordination is also discussed. First, based on the analysis of traditi onal project management, project management and coordination of distributed coop erative product design in the virtual enterprise is put forward. Then, aiming at the characteristics of a distributed concurrent product design process, the inh erent rules and complex interrelations in product development are studied. Accor dingly, the architecture of project management of distributed cooperative produc t design in a virtual enterprise is presented to adapt to distributed concurrent development of complex products. The main advantages of the architecture are al so discussed. Finally, the emphasis is placed on the project management process. Its main functions are set forth, such as project definition, task decompositio n and distribution, resource constraints and dynamic resource scheduling, proces s fusion, task scheduling and monitoring, project plan, cost and quality evaluat ion, etc.展开更多
In recent years, with the continuous progress of science and technology, the development of information technology has also begun to change. The popularity of the application of modern information technology in the fi...In recent years, with the continuous progress of science and technology, the development of information technology has also begun to change. The popularity of the application of modern information technology in the field of education is very high. College students can obtain the knowledge and content they need from the network. Teachers are no longer the only source of information for students, which promotes the improvement of students academic performance and cultivates students autonomous learning ability. As a university teacher, the author discusses how to motivate college students autonomous learning in the process of virtual project-based practical teaching, hoping that this paper can provide a certain direction for the future development of university education and guide college students to cultivate their autonomous learning ability.展开更多
In a dynamic CT, the acquired projections are corrupted due to strong dynamic nature of the object, for example: lungs, heart etc. In this paper, we present fan-beam reconstruction algorithm without position-dependent...In a dynamic CT, the acquired projections are corrupted due to strong dynamic nature of the object, for example: lungs, heart etc. In this paper, we present fan-beam reconstruction algorithm without position-dependent backprojection weight which compensates for the time-dependent translational, uniform scaling and rotational deformations occurring in the object of interest during the data acquisition process. We shall also compare the computational cost of the proposed reconstruction algorithm with the existing one which has position-dependent weight. To accomplish the objective listed above, we first formulate admissibility conditions on deformations that is required to exactly reconstruct the object from acquired sequential deformed projections and then derive the reconstruction algorithm to compensate the above listed deformations satisfying the admissibility conditions. For this, 2-D time-dependent deformation model is incorporated in the fan-beam FBP reconstruction algorithm with no backprojection weight, assuming the motion parameters being known. Finally the proposed reconstruction algorithm is evaluated with the motion corrupted projection data simulated on the computer.展开更多
Conceptualizations of empathy have been most fully developed in a variety of fields in recent years.Many approaches to empathy dwell on the cognitive,affective,and behavioral aspects,the intra-psychic processes that c...Conceptualizations of empathy have been most fully developed in a variety of fields in recent years.Many approaches to empathy dwell on the cognitive,affective,and behavioral aspects,the intra-psychic processes that cause one to feel emotions more like those of another,rather than the interpersonal functions of empathy,which may be influenced by the variables during the communication process.Therefore,this study designed and implemented a virtual ethnographic intercultural project between Chinese and American university students with WeChat as the main social medium.The whole process included three phases:exploring the unique cultural experiences of Chinese and American students,seeking an empathy based on commonality and seeking a relational empathy,a form of harmonization and integration through interactive and continuous intercultural dialogues.During the process,the method of discourse-centered online ethnography(DCOE)was employed,which involved systematic observation and interaction with WeChat users.We used the collective data to analyze how relational empathy was developed through understanding cultural differences,seeking similarities,and creating a third culture by engaging students in a substantial and dynamic natural and interactive setting.The study shows that the most challenging process to nurture relational empathy is to move from Phases One and Two to Phase Three,during which,some strategies to build relational empathy need to be taught and practiced in a specific cultural setting.In conclusion,virtual ethnographic intercultural teaching is an effective approach to offer students a long-term intercultural dialogue and insight into developing shared meaning,or dynamic relational empathy with culturally different others.展开更多
This research study measures the support for learners through the use of a Virtual Learning Environment project website. The website prepares, assists and supports the learners through their Mechanical Engineering Pro...This research study measures the support for learners through the use of a Virtual Learning Environment project website. The website prepares, assists and supports the learners through their Mechanical Engineering Projects in an accredited academic programme. The research question answered was "Is the VLE website helpful to learners in the final years of mechanical engineering projects?" The research focuses on the learners' experiences of using the project website and explores their views regarding the website. The literature relating to the study indicates that similar programmes have had positive results in relation to the adoption of VLEs to support learners.The data collection process involved an initial questionnaire about the website for the quantitative analysis. Thirty-nine project learners from the third and fourth years of the Mechanical Engineering programme participated in the questionnaires. The analysis of the questionnaire results indicated that the project website VLE was very helpful to learners completing their Mechanical Engineering projects. They all used the website for different aspects of the project but they still wanted a lecturer or lecturers to consult with for problems during the course of the project. The kinesthetic learning achieved in the project modules cannot be replicated or replaced by any virtual learning environment. The website afforded the learner to be better prepared for the project start in September. It gives the learner another resource to refer to when they were working at home, during the holidays or when they come to a particular part of the project. The website also teaches the learner to use the internet, videos, screencasts, tutorials, etc. to help them to complete the project.The website has enhanced student learning, motivation, earlier starts to project, peer learning and has improved the quality of projects.展开更多
Three-dimensional visualization technology converts engineering design drawings and data into graphics or images, realizes virtual reality perception of simulated users in future construction scene, enhances the inter...Three-dimensional visualization technology converts engineering design drawings and data into graphics or images, realizes virtual reality perception of simulated users in future construction scene, enhances the interaction between project management and technical personnel and engineering construction achievement, and provides intuitive, flexible and strong realistic experience for project management. It can effectively improve the level of project communication, and assist the needs of project construction planning management, training, exhibition, etc. As a tool to help improve project management skills, it has good application effect and prospects.展开更多
Given the increasing complexity of cancer care,multidisciplinary tumor boards have become essential in daily clinical oncology practice.The Project Extension for Community Healthcare Outcomes(ECHO)initiative developed...Given the increasing complexity of cancer care,multidisciplinary tumor boards have become essential in daily clinical oncology practice.The Project Extension for Community Healthcare Outcomes(ECHO)initiative developed an innovative telementoring model using a"hub and spoke"design consisting of a team of experts(hub)that offers a full service to multiple participants(the spokes)during regularly scheduled sessions discussing patients'clinical cases.The Alexander Fleming Cancer Institute in Buenos Aires was the first hub in Latin America to implement Project ECHO for gastrointestinal tumors.In our 3-year experience,80 patients from 37 centers were evaluated within Project ECHO and a range of three to five cases were discussed in each meeting.From our perspective,the impact of this novel approach was a remarkable strategy to reduce care disparities by equalizing access to high-quality medical knowledge in a multidisciplinary environment for medical discussions.Additionally,it was shown to have a cost-effective impact directly on the patients and the local health system,since relevant costs were saved after unnecessary treatments,studies and travel expenses were avoided.展开更多
文摘The architecture of project management of distributed concurrent product design in a virtual enterprise is put forward. T he process of project management and its functions are presented. Product design process coordination is also discussed. First, based on the analysis of traditi onal project management, project management and coordination of distributed coop erative product design in the virtual enterprise is put forward. Then, aiming at the characteristics of a distributed concurrent product design process, the inh erent rules and complex interrelations in product development are studied. Accor dingly, the architecture of project management of distributed cooperative produc t design in a virtual enterprise is presented to adapt to distributed concurrent development of complex products. The main advantages of the architecture are al so discussed. Finally, the emphasis is placed on the project management process. Its main functions are set forth, such as project definition, task decompositio n and distribution, resource constraints and dynamic resource scheduling, proces s fusion, task scheduling and monitoring, project plan, cost and quality evaluat ion, etc.
文摘In recent years, with the continuous progress of science and technology, the development of information technology has also begun to change. The popularity of the application of modern information technology in the field of education is very high. College students can obtain the knowledge and content they need from the network. Teachers are no longer the only source of information for students, which promotes the improvement of students academic performance and cultivates students autonomous learning ability. As a university teacher, the author discusses how to motivate college students autonomous learning in the process of virtual project-based practical teaching, hoping that this paper can provide a certain direction for the future development of university education and guide college students to cultivate their autonomous learning ability.
文摘In a dynamic CT, the acquired projections are corrupted due to strong dynamic nature of the object, for example: lungs, heart etc. In this paper, we present fan-beam reconstruction algorithm without position-dependent backprojection weight which compensates for the time-dependent translational, uniform scaling and rotational deformations occurring in the object of interest during the data acquisition process. We shall also compare the computational cost of the proposed reconstruction algorithm with the existing one which has position-dependent weight. To accomplish the objective listed above, we first formulate admissibility conditions on deformations that is required to exactly reconstruct the object from acquired sequential deformed projections and then derive the reconstruction algorithm to compensate the above listed deformations satisfying the admissibility conditions. For this, 2-D time-dependent deformation model is incorporated in the fan-beam FBP reconstruction algorithm with no backprojection weight, assuming the motion parameters being known. Finally the proposed reconstruction algorithm is evaluated with the motion corrupted projection data simulated on the computer.
文摘Conceptualizations of empathy have been most fully developed in a variety of fields in recent years.Many approaches to empathy dwell on the cognitive,affective,and behavioral aspects,the intra-psychic processes that cause one to feel emotions more like those of another,rather than the interpersonal functions of empathy,which may be influenced by the variables during the communication process.Therefore,this study designed and implemented a virtual ethnographic intercultural project between Chinese and American university students with WeChat as the main social medium.The whole process included three phases:exploring the unique cultural experiences of Chinese and American students,seeking an empathy based on commonality and seeking a relational empathy,a form of harmonization and integration through interactive and continuous intercultural dialogues.During the process,the method of discourse-centered online ethnography(DCOE)was employed,which involved systematic observation and interaction with WeChat users.We used the collective data to analyze how relational empathy was developed through understanding cultural differences,seeking similarities,and creating a third culture by engaging students in a substantial and dynamic natural and interactive setting.The study shows that the most challenging process to nurture relational empathy is to move from Phases One and Two to Phase Three,during which,some strategies to build relational empathy need to be taught and practiced in a specific cultural setting.In conclusion,virtual ethnographic intercultural teaching is an effective approach to offer students a long-term intercultural dialogue and insight into developing shared meaning,or dynamic relational empathy with culturally different others.
文摘This research study measures the support for learners through the use of a Virtual Learning Environment project website. The website prepares, assists and supports the learners through their Mechanical Engineering Projects in an accredited academic programme. The research question answered was "Is the VLE website helpful to learners in the final years of mechanical engineering projects?" The research focuses on the learners' experiences of using the project website and explores their views regarding the website. The literature relating to the study indicates that similar programmes have had positive results in relation to the adoption of VLEs to support learners.The data collection process involved an initial questionnaire about the website for the quantitative analysis. Thirty-nine project learners from the third and fourth years of the Mechanical Engineering programme participated in the questionnaires. The analysis of the questionnaire results indicated that the project website VLE was very helpful to learners completing their Mechanical Engineering projects. They all used the website for different aspects of the project but they still wanted a lecturer or lecturers to consult with for problems during the course of the project. The kinesthetic learning achieved in the project modules cannot be replicated or replaced by any virtual learning environment. The website afforded the learner to be better prepared for the project start in September. It gives the learner another resource to refer to when they were working at home, during the holidays or when they come to a particular part of the project. The website also teaches the learner to use the internet, videos, screencasts, tutorials, etc. to help them to complete the project.The website has enhanced student learning, motivation, earlier starts to project, peer learning and has improved the quality of projects.
文摘Three-dimensional visualization technology converts engineering design drawings and data into graphics or images, realizes virtual reality perception of simulated users in future construction scene, enhances the interaction between project management and technical personnel and engineering construction achievement, and provides intuitive, flexible and strong realistic experience for project management. It can effectively improve the level of project communication, and assist the needs of project construction planning management, training, exhibition, etc. As a tool to help improve project management skills, it has good application effect and prospects.
文摘Given the increasing complexity of cancer care,multidisciplinary tumor boards have become essential in daily clinical oncology practice.The Project Extension for Community Healthcare Outcomes(ECHO)initiative developed an innovative telementoring model using a"hub and spoke"design consisting of a team of experts(hub)that offers a full service to multiple participants(the spokes)during regularly scheduled sessions discussing patients'clinical cases.The Alexander Fleming Cancer Institute in Buenos Aires was the first hub in Latin America to implement Project ECHO for gastrointestinal tumors.In our 3-year experience,80 patients from 37 centers were evaluated within Project ECHO and a range of three to five cases were discussed in each meeting.From our perspective,the impact of this novel approach was a remarkable strategy to reduce care disparities by equalizing access to high-quality medical knowledge in a multidisciplinary environment for medical discussions.Additionally,it was shown to have a cost-effective impact directly on the patients and the local health system,since relevant costs were saved after unnecessary treatments,studies and travel expenses were avoided.
