In order to reduce energy consumption and protect the human survival environment, the lightweight has became the development trend of the world automobile industry. On the premise of ensuring the strength, safety and ...In order to reduce energy consumption and protect the human survival environment, the lightweight has became the development trend of the world automobile industry. On the premise of ensuring the strength, safety and driving performance of the car, the major car enterprises try to reduce the curb weight of the ear, fuel consumption and emissions. Not only a lot of new technologies and new products have been generated, but also joint vehicle development process and computer aided engineering （CAE） analysis technology have been developed. Since the entry into the ＂Au- tomobile Lightweight Technology Innovation Strategic Alliance＂ in Dec. 2007, Geely Group has been focusing on light- weight construction of vehicle and key assemblies in every stage of the vehicle product development. Among vehicles ap- peared on the market and in research, it has presented continuously better performance. The paper describes application examples and successful experience of CAE simulation analysis and performance optimization during the lightweight de- sign and development of a self-developed model of Geely, and looks forward to the prospects for the development of lightweight of Geely vehicle.展开更多
The relationship between the emission of pollutant and economic growth has attracted a lot of attention in the environmental debate of the recent decades. Based on some theoretical and empirical research on environmen...The relationship between the emission of pollutant and economic growth has attracted a lot of attention in the environmental debate of the recent decades. Based on some theoretical and empirical research on environmental Kuznets curve （EKC）, this paper introduces the environmental technical innovation and environmental investment into Salow growth model to discuss the relationship between GDP per capital and the emission of pollutant By the dynamic simulation and parameters analysis, the results of the model indicate： （1） when ＂green＂ technical progress and environmental investment are fixed, the relationship between GDP per capital and the emission shows the linear relationship; （2） ＂green＂ technical progress can lead to the positive growth rates with a decreasing level of emission, which is compatible with an EKC; （3） the proportion of the environmental investment can lead the different growth rates and level of emission. These results can explain that developing countries are ＂too poor to be green＂.展开更多
Technological innovation, driven towards the educational context, has favored the concept of interactive technological environments that may significantly contribute towards the teaching-learning processes. In that se...Technological innovation, driven towards the educational context, has favored the concept of interactive technological environments that may significantly contribute towards the teaching-learning processes. In that sense, mapping interactivity indicators that consider technical and operational aspects, supported by the available technical literature and based on the perspective of undergraduate engineers and teachers, becomes a fundamental activity in order to build interactive environments that may in fact adequately contribute for the professional education of our students, mainly the ones in engineering courses. Specifically, this paper shows preliminary studies within this perspective, showing how technological innovation may be understood and applied in the educational context. The study also shows the first interactivity indicator for a collaborative learning perspective, obtained from data collected through a qualitative content analysis methodology.展开更多
By introducing a knowledge production function which combines both foreign technology imports and domestic research and development （R＆D） expenditure into an endogenous technological progress model, this paper exam...By introducing a knowledge production function which combines both foreign technology imports and domestic research and development （R＆D） expenditure into an endogenous technological progress model, this paper examines the mechanism that determines enterprises＇ R＆D intensity in developing countries, and explores how factors such as technological gap, technology absorptive capacity, innovation environment and innovation ability would impact Chinese enterprises＇decision made on R＆D intensity. Our results suggest that technological gap has no significant single impact on enterprises＇R＆D intensity, but rather influences enterprises＇decision on R＆D jointly with other factors such as degree of openness and human capital. A relative fall in efficiency of technology imitation recently has a negative effect on total R＆D intensity but helps to promote enterprises＇ independent R＆D. In addition, among factors related to R＆D innovation environment, industrial R＆D intensity has a significantly positive impact on enterprises＇ independent R＆D intensity, while regional economies of scale, proportion of large enterprises and proportion of government R＆D investment have some certain negative impacts.展开更多
基金Supporting Program of the"Twelfth Five-year Plan"for Sci & Tech Research of China(No. 2011BAG03B02No.2011BAG03B06)
文摘In order to reduce energy consumption and protect the human survival environment, the lightweight has became the development trend of the world automobile industry. On the premise of ensuring the strength, safety and driving performance of the car, the major car enterprises try to reduce the curb weight of the ear, fuel consumption and emissions. Not only a lot of new technologies and new products have been generated, but also joint vehicle development process and computer aided engineering （CAE） analysis technology have been developed. Since the entry into the ＂Au- tomobile Lightweight Technology Innovation Strategic Alliance＂ in Dec. 2007, Geely Group has been focusing on light- weight construction of vehicle and key assemblies in every stage of the vehicle product development. Among vehicles ap- peared on the market and in research, it has presented continuously better performance. The paper describes application examples and successful experience of CAE simulation analysis and performance optimization during the lightweight de- sign and development of a self-developed model of Geely, and looks forward to the prospects for the development of lightweight of Geely vehicle.
文摘The relationship between the emission of pollutant and economic growth has attracted a lot of attention in the environmental debate of the recent decades. Based on some theoretical and empirical research on environmental Kuznets curve （EKC）, this paper introduces the environmental technical innovation and environmental investment into Salow growth model to discuss the relationship between GDP per capital and the emission of pollutant By the dynamic simulation and parameters analysis, the results of the model indicate： （1） when ＂green＂ technical progress and environmental investment are fixed, the relationship between GDP per capital and the emission shows the linear relationship; （2） ＂green＂ technical progress can lead to the positive growth rates with a decreasing level of emission, which is compatible with an EKC; （3） the proportion of the environmental investment can lead the different growth rates and level of emission. These results can explain that developing countries are ＂too poor to be green＂.
文摘Technological innovation, driven towards the educational context, has favored the concept of interactive technological environments that may significantly contribute towards the teaching-learning processes. In that sense, mapping interactivity indicators that consider technical and operational aspects, supported by the available technical literature and based on the perspective of undergraduate engineers and teachers, becomes a fundamental activity in order to build interactive environments that may in fact adequately contribute for the professional education of our students, mainly the ones in engineering courses. Specifically, this paper shows preliminary studies within this perspective, showing how technological innovation may be understood and applied in the educational context. The study also shows the first interactivity indicator for a collaborative learning perspective, obtained from data collected through a qualitative content analysis methodology.
基金This study has been supported by “Research on Chinese Enterprises＇ R＆D Efficiency and Its Influencing Factors” under National Natural Science Foundation of China （70902002）, “Research on Beijing Enterprises＇ R＆D Efficiency and Its Influencing Factors： Analysis Based on Cutting-edge” under Beijing Natural Science Foundation （9102019）, together with “Program for New Century Excellent Talents in University” under the Ministry of Education and Key Project under the “211 Project” for Central University of Finance and Economics.
文摘By introducing a knowledge production function which combines both foreign technology imports and domestic research and development （R＆D） expenditure into an endogenous technological progress model, this paper examines the mechanism that determines enterprises＇ R＆D intensity in developing countries, and explores how factors such as technological gap, technology absorptive capacity, innovation environment and innovation ability would impact Chinese enterprises＇decision made on R＆D intensity. Our results suggest that technological gap has no significant single impact on enterprises＇R＆D intensity, but rather influences enterprises＇decision on R＆D jointly with other factors such as degree of openness and human capital. A relative fall in efficiency of technology imitation recently has a negative effect on total R＆D intensity but helps to promote enterprises＇ independent R＆D. In addition, among factors related to R＆D innovation environment, industrial R＆D intensity has a significantly positive impact on enterprises＇ independent R＆D intensity, while regional economies of scale, proportion of large enterprises and proportion of government R＆D investment have some certain negative impacts.
