The Experts below are selected from a list of 13380 Experts worldwide ranked by ideXlab platform
Zhi Li - One of the best experts on this subject based on the ideXlab platform.
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spatio temporal characteristics of the relationship between carbon emissions and economic growth in china s Transportation Industry
Environmental Science and Pollution Research, 2020Co-Authors: Li Wang, Jiaoyue Wang, Yanfei Zhao, Zhi LiAbstract:The economic and social development of a country rely heavily on Transportation. In China, it has become the third largest energy consumption sector and generates substantial amounts of carbon emissions. In the present study, direct and indirect carbon emissions from the Transportation Industry throughout China’s 30 provinces during 1997–2017 were calculated. Further, to reveal the spatio-temporal characteristics of the relationship between carbon emissions and economic growth, the standard deviational ellipse and Tapio decoupling method were employed. The main results are as follows. (1) The total carbon emissions from the Transportation Industry increased from 132.79 million tons (Mt) in 1997 to 849.64 Mt in 2017, with an average annual growth rate of 9.72%; direct carbon emissions accounted for approximately 86% of the total. (2) Carbon emissions as well as the added value of the Transportation Industry had the same spatial distribution characteristics, presenting a northeast–southwest pattern during 1997–2017. Although their spatial distribution patterns were mainly in the north–south direction, the development in the east–west direction became increasingly obvious. (3) The decoupling index in the Transportation Industry was greater than 0.8 for most years, with an expansive negative decoupling state or an expansive coupling state. The differences in carbon emissions and economic growth between various provinces showed a spatio-temporal disparity of the decoupling states in the Transportation Industry. The obtained results are of considerable interest for China’s policymakers to set more reasonable carbon emission reduction goals and implement targeted policies according to the carbon emission situation at a local scale.
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sustainability performance for china s Transportation Industry under the environmental regulation
Journal of Cleaner Production, 2017Co-Authors: Zhi Li, Nan MengAbstract:Abstract Traffic and Transportation Industry is a carbon-intensive Industry in China. The implementation of environmental regulation is of important practical significance. Nowadays, literatures lack of quantitative analysis on transport Industry's sustainability performance under the environmental regulation. By using a directional distance function, this paper aims to investigate the effect of environmental regulation on this Industry. Furthermore, this paper measures its green total factor productivity under the general intensity of regulation and strict regulation from 2000 to 2010. Results show that the economic growth mode in Transportation Industry is still the extensive mode, while there is great potential for the improvement of energy saving and production.
Jie Wu - One of the best experts on this subject based on the ideXlab platform.
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environmental efficiency and technological progress of Transportation Industry based on large scale data
Technological Forecasting and Social Change, 2019Co-Authors: Jie WuAbstract:Abstract In order to measure technological change and environmental efficiency precisely, and further to improve the technology and environmental efficiency of road Transportation Industry in “big data” context, a Hicks-Moorsteen Index model based on DEA is proposed in this study, and then is employed to assess the performance of road Transportation Industry. The empirical study concludes that: (a) all of the total factors productivity growth, technological progress and environmental efficiency of the road Transportation sectors in the eastern, western and central regions all averagely increased. (b) The growth rates of mix efficiency of the road Transportation sectors in the three regions were the highest among the various efficiency changes. (c) While the performances of technological progress in western and central region outperform that in eastern region, the performance of environmental efficiency change outperform those in western and central regions. This paper suggests the diffused utilization of optimal production technology should be superior to the pace of technological innovation in western and central regions, and road Transportation Industry in China should be sensitive to the influence of government policy such as “supply side reform”.
Jianwei Wang - One of the best experts on this subject based on the ideXlab platform.
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Decoupling of Transportation Energy Consumption from Transportation Industry Growth in China
Procedia - Social and Behavioral Sciences, 2012Co-Authors: Jianwei Wang, Jing ZhaoAbstract:The occurrence of decoupling of Transportation energy consumption from Transportation Industry growth in China from 1985 to 2009 is examined. An elasticity index model is developed to identify the degree of decoupling. Total Transportation energy consumption and Transportation energy consumption types are included into the decoupling elasticity indices. Results indicate that weak decoupling between total Transportation energy consumption and Transportation Industry growth accounts for 54.17%, while weak decoupling does not occur in a smooth manner. It is suggested that the strong decoupling of total Transportation energy consumption from Transportation Industry growth will occur with a low probability in the future. Furthermore, decoupling indices of Transportation energy consumption types exhibit diversely: the proportion of strong decoupling of coal is 79.17%; weak decoupling of oil presents 37.5%; and natural gas and electricity consumption are dominated by strong coupling of 62.5% and 54.17%, respectively. According to the different decoupling states, the special and directional Transportation policies should be implemented.
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Dynamic relationship between Transportation energy consumption and Transportation Industry growth
7th Advanced Forum on Transportation of China (AFTC 2011), 2011Co-Authors: Jianwei WangAbstract:Dynamic relationship and interaction characteristics between Transportation energy consumption and Transportation Industry growth in China is investigated by VAR model. Analysis is developed at both energy consumption and energy consumption structure levels. Co-integration analysis, impulse response function and variance decomposition approach are applied for the estimation of VAR model. Time series variables over the periods from 1985 to 2009 are employed in empirical tests. Results indicate that there is no long-run co-integration relationship between Transportation energy consumption and Transportation Industry growth. Impulse responses demonstrate different response effects of no lag or 1 lag. Response effect is obvious and fluctuated severely in short run and weakens in long run with different positive or negative effect. Furthermore, the contribution diversity among variables is reported by variance decomposition.
Nan Meng - One of the best experts on this subject based on the ideXlab platform.
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sustainability performance for china s Transportation Industry under the environmental regulation
Journal of Cleaner Production, 2017Co-Authors: Zhi Li, Nan MengAbstract:Abstract Traffic and Transportation Industry is a carbon-intensive Industry in China. The implementation of environmental regulation is of important practical significance. Nowadays, literatures lack of quantitative analysis on transport Industry's sustainability performance under the environmental regulation. By using a directional distance function, this paper aims to investigate the effect of environmental regulation on this Industry. Furthermore, this paper measures its green total factor productivity under the general intensity of regulation and strict regulation from 2000 to 2010. Results show that the economic growth mode in Transportation Industry is still the extensive mode, while there is great potential for the improvement of energy saving and production.
Nagel Nagel - One of the best experts on this subject based on the ideXlab platform.
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Adjustable Speed Drives Transportation Industry Needs Part II: R&D and Aeropropulsion
Vehicular Technology Conference 2003. VTC 2003-Fall. 2003 IEEE 58th, 2003Co-Authors: John M. Miller, Brendan Conlon, Marcus Duvall, M D Kankam, Steven E Schulz, Nagel NagelAbstract:Adjustable speed drives for applications in the Transportation Industry are significantly different and face economic and cost pressures exceeding those of other industries. This and a companion paper are a summary of the present status of adjustable speed drives in the automotive, utility, and aerospace industries, including relevant topics of research and development. Specific topics in part I include the application of ASD's in hybrid electric vehicles and advanced technology vehicles that rely on x-by-wire technologies. In part II special treatment is given to hybrid vehicle R&D topics and aerospace propulsion needs. Particular emphasis has been given to automotive Industry needs, specifically those related to environmental and performance, and how these constraints impact installation costs.
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Adjustable speed drives Transportation Industry needs part I: automotive
2003 IEEE 58th Vehicular Technology Conference. VTC 2003-Fall (IEEE Cat. No.03CH37484), 2003Co-Authors: John M. Miller, Brendan Conlon, Marcus Duvall, M D Kankam, Steven E Schulz, Nagel NagelAbstract:Adjustable speed drives for applications in the Transportation Industry are significantly different and face economic and cost pressures exceeding those of other industries. This and a companion paper are a summary of the present status of adjustable speed drives in the automotive, utility, and aerospace industries, including relevant topics of research and development. Specific topics in part I include the application of ASD's in hybrid electric vehicles and advanced technology vehicles that rely on x-by-wire technologies. In part II special treatment is given to hybrid vehicle R&D topics and aerospace propulsion needs. Particular emphasis has been given to automotive Industry needs, specifically those related to environmental and performance, and how these constraints impact installation costs.
