With the development of intelligent terminals and mobile applications,the influence of continuous improvement on mobile content services to the continuance use intention is more and more significant.Based on the expec...With the development of intelligent terminals and mobile applications,the influence of continuous improvement on mobile content services to the continuance use intention is more and more significant.Based on the expectation-confirmation theory and information system continuance use theory,this paper proposes a mobile content continuance use model and puts forward related assumptions under the mobile commerce environment by introducing the continuous improvement variables.Questionnaire data are collected from 219 mobile content service users for research,and the hypothetical model is validated by the structural equation modeling.Results show that the information system continuance use model is still valid under the mobile commerce environment,and the continuous improvement on mobile content services have positive impacts on user's expectations after they have experienced certain mobile content services.展开更多
The museum education focusing on the children is different from adult acceptors for the mental development of the children presents obvious stage features. Therefore, a clear definition on the ages of the children in ...The museum education focusing on the children is different from adult acceptors for the mental development of the children presents obvious stage features. Therefore, a clear definition on the ages of the children in the service must be made. The children in different ages can find their own educational project groups in a short time according to their own categories and ages. To facilitate the branding of routine childhood education programs, improve the implementing benefit of childhood education programs and realize the maximization of resource utilization in the Museum Children Education, this study firstly generalizes and extracts one of the common problems that affect the implementing benefit of Chinese Museum Children Education project based on the case analysis - focus and age-group of service objects. Then this paper （article） explores it step by step. Finally the article combines the analyses with the empirical researches on feedback information acquired in on-site observations and semi-structured interviews, to propose improvement suggestions for the problem.展开更多
This paper resumes a research project developed in the concession area of AES Eletropaulo, the largest electrical energy distribution company in Brazil. First, the global standards of information exchange within power...This paper resumes a research project developed in the concession area of AES Eletropaulo, the largest electrical energy distribution company in Brazil. First, the global standards of information exchange within power transmission and distribution area were evaluated, allowing the definition of state of the art on the theme, followed by determining its applications considering technologies already applied by the company. The specifications needed for the generation of a data integration model are adapted to radial overhead network at company concession area. The project developed an intermediary connectivity layer, based on the CIM （common information model）, which enables corporative systems to communicate in a standard way, through the use of integrating technologies. It, therefore, enabled modeling all main subjects of an electrical network in an open, extensible and non-proprietary way, in a model that contains classes and attributes of such subjects, as well as their relationships. Calculation and planning products adopted by the company were integrated to the technological layer implemented.展开更多
The purpose of this study is to provide a concrete innovation on how Education for Sustainable Development （ESD） is integrated into higher education using Advanced Educational Statistics as its platform. With this, ...The purpose of this study is to provide a concrete innovation on how Education for Sustainable Development （ESD） is integrated into higher education using Advanced Educational Statistics as its platform. With this, university faculty, master＇s degree students and administrators can make appropriate strategies to become globally competitive and responsive to the sustainability mantra. A successful innovation has been developed, and found to be relevant and achievable. The key ingredient of this innovation is to utilize statistics as a platform of ESD fused with Multiple intelligences （MI）, Higher-Order Thinking Skills （HOTs） and latest technology. Moreover, this paper used a descriptive-correlation design, which identified the difficulties encountered by the master＇s degree students in making their innovations; then determined the relationship between the attitudes of students toward e-portfolio and their level of fusing ESD in statistics relative to： MI, HOTs and latest technology. Multiple regression analysis was utilized to predict its relationships. This innovation is highly appropriate for multidisciplinary, international students. It connects ESD principles with practice as it enables university＇s effort to contribute to ESD. This paper is supported by the actual, students＇ output which can be found in the website （http：//statisticsforndmu.blogspot.com/）.展开更多
In VSF-OFCDM wireless communication, wireless channel is divided into component channels with the same frequency space according to the frequency, and the carriers on component channels are mutually orthogonal. When t...In VSF-OFCDM wireless communication, wireless channel is divided into component channels with the same frequency space according to the frequency, and the carriers on component channels are mutually orthogonal. When there are enough subcarriers, the bandwidth efficiency of the system is close to nyquist limit, which can ensure the utilization ratio of system frequency. Therefore, under the premise of ensuring orthogonal division of channels, the channels received a secondary division according to data rate requirements and power limit of business to make the frequency resource fully used and makes the total power minimal, which realizes the optimal distribution of wireless-communication system resources. The secondary division is represented by bit loading algorithm the best bit number of subcarrier allocation in symbol period. For the characteristics of wide-band multi-media services and granular division of VSF-OFCDM wireless communication, the subject proposes the idea of business-oriented subcarrier allocation, which means that the subcarriers are divided in symbol period with the business as the dominant. Based on the idea, the paper designs service-oriented bit loading algorithm of subcarrier, byte and power combined with distribution based on channel detection, and makes verification and performance analysis on the algorithm.展开更多
How many users can a quantum cryptography network support when certain services are demanded? The answer to this question depends on three factors:the speed of quantum key distribution,the organization and traffic eng...How many users can a quantum cryptography network support when certain services are demanded? The answer to this question depends on three factors:the speed of quantum key distribution,the organization and traffic engineering of the quantum cryptography network,and the engineering of services.In this article we focus on the second factor which is lacked in the literature to our knowledge but in urgent need for constructing an optimized large-scale quantum cryptography network.In order to provide an overall understanding about a quantum cryptography network,we also briefly introduce the characteristics of quantum cryptography and service engineering.展开更多
基金supported by China Fundamental Research Funds for the Central University under Grant No.BUPT 2009RC1022
文摘With the development of intelligent terminals and mobile applications,the influence of continuous improvement on mobile content services to the continuance use intention is more and more significant.Based on the expectation-confirmation theory and information system continuance use theory,this paper proposes a mobile content continuance use model and puts forward related assumptions under the mobile commerce environment by introducing the continuous improvement variables.Questionnaire data are collected from 219 mobile content service users for research,and the hypothetical model is validated by the structural equation modeling.Results show that the information system continuance use model is still valid under the mobile commerce environment,and the continuous improvement on mobile content services have positive impacts on user's expectations after they have experienced certain mobile content services.
文摘The museum education focusing on the children is different from adult acceptors for the mental development of the children presents obvious stage features. Therefore, a clear definition on the ages of the children in the service must be made. The children in different ages can find their own educational project groups in a short time according to their own categories and ages. To facilitate the branding of routine childhood education programs, improve the implementing benefit of childhood education programs and realize the maximization of resource utilization in the Museum Children Education, this study firstly generalizes and extracts one of the common problems that affect the implementing benefit of Chinese Museum Children Education project based on the case analysis - focus and age-group of service objects. Then this paper （article） explores it step by step. Finally the article combines the analyses with the empirical researches on feedback information acquired in on-site observations and semi-structured interviews, to propose improvement suggestions for the problem.
文摘This paper resumes a research project developed in the concession area of AES Eletropaulo, the largest electrical energy distribution company in Brazil. First, the global standards of information exchange within power transmission and distribution area were evaluated, allowing the definition of state of the art on the theme, followed by determining its applications considering technologies already applied by the company. The specifications needed for the generation of a data integration model are adapted to radial overhead network at company concession area. The project developed an intermediary connectivity layer, based on the CIM （common information model）, which enables corporative systems to communicate in a standard way, through the use of integrating technologies. It, therefore, enabled modeling all main subjects of an electrical network in an open, extensible and non-proprietary way, in a model that contains classes and attributes of such subjects, as well as their relationships. Calculation and planning products adopted by the company were integrated to the technological layer implemented.
文摘The purpose of this study is to provide a concrete innovation on how Education for Sustainable Development （ESD） is integrated into higher education using Advanced Educational Statistics as its platform. With this, university faculty, master＇s degree students and administrators can make appropriate strategies to become globally competitive and responsive to the sustainability mantra. A successful innovation has been developed, and found to be relevant and achievable. The key ingredient of this innovation is to utilize statistics as a platform of ESD fused with Multiple intelligences （MI）, Higher-Order Thinking Skills （HOTs） and latest technology. Moreover, this paper used a descriptive-correlation design, which identified the difficulties encountered by the master＇s degree students in making their innovations; then determined the relationship between the attitudes of students toward e-portfolio and their level of fusing ESD in statistics relative to： MI, HOTs and latest technology. Multiple regression analysis was utilized to predict its relationships. This innovation is highly appropriate for multidisciplinary, international students. It connects ESD principles with practice as it enables university＇s effort to contribute to ESD. This paper is supported by the actual, students＇ output which can be found in the website （http：//statisticsforndmu.blogspot.com/）.
文摘In VSF-OFCDM wireless communication, wireless channel is divided into component channels with the same frequency space according to the frequency, and the carriers on component channels are mutually orthogonal. When there are enough subcarriers, the bandwidth efficiency of the system is close to nyquist limit, which can ensure the utilization ratio of system frequency. Therefore, under the premise of ensuring orthogonal division of channels, the channels received a secondary division according to data rate requirements and power limit of business to make the frequency resource fully used and makes the total power minimal, which realizes the optimal distribution of wireless-communication system resources. The secondary division is represented by bit loading algorithm the best bit number of subcarrier allocation in symbol period. For the characteristics of wide-band multi-media services and granular division of VSF-OFCDM wireless communication, the subject proposes the idea of business-oriented subcarrier allocation, which means that the subcarriers are divided in symbol period with the business as the dominant. Based on the idea, the paper designs service-oriented bit loading algorithm of subcarrier, byte and power combined with distribution based on channel detection, and makes verification and performance analysis on the algorithm.
基金supported by the National Natural Science Foundation of China (Grant No. 61125502)the Chinese Academy of Sciences,the National High Technology Research and Development Program of Chinathe National Fundamental Research Program (Grant No.2011CB921300)
文摘How many users can a quantum cryptography network support when certain services are demanded? The answer to this question depends on three factors:the speed of quantum key distribution,the organization and traffic engineering of the quantum cryptography network,and the engineering of services.In this article we focus on the second factor which is lacked in the literature to our knowledge but in urgent need for constructing an optimized large-scale quantum cryptography network.In order to provide an overall understanding about a quantum cryptography network,we also briefly introduce the characteristics of quantum cryptography and service engineering.
