期刊文献+
共找到22,783篇文章
< 1 2 250 >
每页显示 20 50 100
Evolutionary analysis of green credit and automobile enterprises under the mechanism of dynamic reward and punishment based on government regulation
1
作者 Yu Dong Xiaoyu Huang +1 位作者 Hongan Gan Xuyang Liu 《中国科学技术大学学报》 CAS CSCD 北大核心 2024年第5期49-62,I0007,共15页
To explore the green development of automobile enterprises and promote the achievement of the“dual carbon”target,based on the bounded rationality assumptions,this study constructed a tripartite evolutionary game mod... To explore the green development of automobile enterprises and promote the achievement of the“dual carbon”target,based on the bounded rationality assumptions,this study constructed a tripartite evolutionary game model of gov-ernment,commercial banks,and automobile enterprises;introduced a dynamic reward and punishment mechanism;and analyzed the development process of the three parties’strategic behavior under the static and dynamic reward and punish-ment mechanism.Vensim PLE was used for numerical simulation analysis.Our results indicate that the system could not reach a stable state under the static reward and punishment mechanism.A dynamic reward and punishment mechanism can effectively improve the system stability and better fit real situations.Under the dynamic reward and punishment mechan-ism,an increase in the initial probabilities of the three parties can promote the system stability,and the government can im-plement effective supervision by adjusting the upper limit of the reward and punishment intensity.Finally,the implementa-tion of green credit by commercial banks plays a significant role in promoting the green development of automobile enter-prises. 展开更多
关键词 automobile enterprises green credit system dynamics reward and punishment mechanism
下载PDF
World Automobile Standards and Innovation Conference held in Shenzhen
2
《China Standardization》 2024年第6期8-8,共1页
The 2024 World Automobile Standards and Innovation Conference(WASIC) convened on October22-24 in Pingshan district,Shenzhen city,South China's Guangdong province.The conference was themed "Leading with greenn... The 2024 World Automobile Standards and Innovation Conference(WASIC) convened on October22-24 in Pingshan district,Shenzhen city,South China's Guangdong province.The conference was themed "Leading with greenness,low carbon,digitalization,and intelligence,standards empowering sustainable development of the automobile industry".It focused on the hot issues of the automobile industry at home and abroad,gathering representatives of international standards organizations from 20countries and regions around the world. 展开更多
关键词 GATHERING automobile DISTRICT
下载PDF
Impacts of Using Al_(2)O_(3)Nano Particle to Compressor Oil on Performance of Automobile Air Conditioning System
3
作者 Karam H.Mohammed Ashraf E.Al-Mirani +1 位作者 Bashar Mahmood Ali Omar Rafae Alomar 《Frontiers in Heat and Mass Transfer》 EI 2024年第3期839-854,共16页
This work involves an experimental study on the performance of automobile air-conditioning systems by adding Al_(2)O_(3)nanoparticles to oil compressors to investigate their impacts on the enhancement of the speed coo... This work involves an experimental study on the performance of automobile air-conditioning systems by adding Al_(2)O_(3)nanoparticles to oil compressors to investigate their impacts on the enhancement of the speed cooling of refrigeration systems and to compare it with the system operated using only oil.The Al_(2)O_(3)nanoparticles have been added to the oil compressor for different ranges ofmass concentration(Ф=0.1%,Ф=0.15%andФ=0.2%).The stability of Al_(2)O_(3)nanoparticles has been tested by direct observation for different time periods.The results indicated that the air conditioning systemthat operated by using Al_(2)O_(3)-oil was better than the system that operated with pure oil.ForФ=0.2%,the results indicated that the cooling speed and the efficiency of the system operated with Al_(2)O_(3)-oil are increased by 13%and 18%,respectively,as compared to the pure oil system.This study shows that the thermos-physical properties of refrigerant oil are enhanced by 15%whenФis increased. 展开更多
关键词 Nanofluids COMPRESSOR cooling system automobile cooling system
下载PDF
German Automobile Expert:Cooperation Instead of Tariffs
4
作者 WEI HONGCHEN 《China Today》 2024年第12期58-59,共2页
“Europe has missed this development opportunity because we are short of a long-term vision.”MORE than 40 exhibitors from 15 major vehicle brands around the world,representing the latest cutting-edge technologies and... “Europe has missed this development opportunity because we are short of a long-term vision.”MORE than 40 exhibitors from 15 major vehicle brands around the world,representing the latest cutting-edge technologies and models,gathered at the seventh China International Import Expo(CIIE),which was held in Shanghai from November 5 to 10. 展开更多
关键词 EXPERT automobile GERMAN
下载PDF
Effect of Seasonal Variations on the Behavior of Flexible Pavements in Burkina Faso: Towards Alternating and Periodic Loading of Multi-Axle Heavy Goods Vehicles for Road Durability
5
作者 Kokoro Kobori Doua Allain Gnabahou Bouto Kossi Imbga 《Journal of Materials Science and Chemical Engineering》 2024年第6期24-42,共19页
Bituminous materials are heat-sensitive, and their mechanical properties vary with temperature. This variation in properties is not without consequences on the performance of flexible road structures under the repeate... Bituminous materials are heat-sensitive, and their mechanical properties vary with temperature. This variation in properties is not without consequences on the performance of flexible road structures under the repeated passage of multi-axles. This study determines the influence of seasonal variations on the rate of permanent deformation, the rut depth of flexible pavements and the effect of alternating loading of heavy goods vehicles following the temperature variations on the durability of roads. Thus, an ambient and pavement surface temperature measurement was carried out in 2022. The temperature profile at different layers of the modelled pavement, the evaluation of deformation rates and rutting depth were determined using several models. The results show that the permanent deformation and rutting rates are higher at the level of the bituminous concrete layer than at the level of the asphalt gravel layer because the stresses decrease from the surface to the depth of the pavement. On the other hand, the variations in these rates, permanent deformations and ruts between the hot and so-called cold periods are more pronounced in the bitumen gravel than in bituminous concrete, showing that gravel bitumen is more sensitive to temperature variations than bituminous concrete despite its higher rigidity. Of these results, we suggested a periodic and alternating loading of the different types of heavy goods vehicles. These loads consist of fully applying the WAEMU standards with a tolerance of 15% during periods of high and low temperatures. This regulation has increased 2 to 3 times in the durability of roadways depending on the type of heavy goods vehicle. 展开更多
关键词 PAVEMENT RUTTING Permanent Deformation multi-axle Seasonal
下载PDF
Automobile Transportation Logistics Supply Chain Management Strategy
6
作者 Liting Yu 《Proceedings of Business and Economic Studies》 2024年第1期56-61,共6页
To enhance the management level and quality of the automobile transportation logistics supply chain and promote innovation and development in automobile transportation logistics enterprises,it is essential to strength... To enhance the management level and quality of the automobile transportation logistics supply chain and promote innovation and development in automobile transportation logistics enterprises,it is essential to strengthen the construction of the automobile transportation logistics supply chain management model.This can be achieved through the gradual improvement of the automobile transportation logistics management process,ensuring that the management of the automobile transportation logistics supply chain proceeds in an orderly manner.The aim is to improve automobile transportation and logistics service levels while meeting the changing market supply needs.This will enable automobile transportation and logistics enterprises to maintain steady economic benefits and enhance their core competitiveness in the market.Therefore,this paper has conducted a comprehensive exploration and research on managing the automobile transportation logistics supply chain.Corresponding management strategies are proposed as a starting point to achieve the aforementioned goals. 展开更多
关键词 automobile transportation Logistics supply chain Management strategies
下载PDF
Research on the Dual-Creation Talent Training Model of New Energy Automobile Based on Virtual Simulation
7
作者 Yanrui Qu Syaza Hazwani Zaini 《Journal of Contemporary Educational Research》 2024年第4期236-240,共5页
At present,as China vigorously develops new energy automobiles,the social demand for related talents has increased significantly,so the relevant institutions need to optimize and adjust the talent training mode to hel... At present,as China vigorously develops new energy automobiles,the social demand for related talents has increased significantly,so the relevant institutions need to optimize and adjust the talent training mode to help the development of new energy automobiles.This paper summarizes the existing problems of China’s new energy automobile talent training mode,and analyzes the significance of the virtual simulation-based dual-creation talent training mode of new energy automobile and its specific implementation strategies,in order to provide references for the relevant personnel. 展开更多
关键词 Virtual simulation New energy automobile Dual-creation Talent training
下载PDF
Near net shape casting process for producing high strength 6xxx aluminum alloy automobile suspension parts 被引量:3
8
作者 郭世杰 徐义 +3 位作者 韩逸 刘金炎 薛冠霞 长海博文 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2014年第7期2393-2400,共8页
The automobile suspension parts of a high strength 6xxx aluminum alloy were produced using a novel technique known as near net shape casting for forging stock preparation. Based on the outline dimension of the forging... The automobile suspension parts of a high strength 6xxx aluminum alloy were produced using a novel technique known as near net shape casting for forging stock preparation. Based on the outline dimension of the forging stock, the shape of the ingot was designed as the near net shape and its casting process was studied by the numerical simulation and experimental investigation. The results show that the shrinkage of the ingot was highly correlated to its shape parameters and could be successfully forecast by the stimulation model. The casting parameters of the near net shape ingot were optimized and the near net shape 6xxx aluminum alloy ingots free of defects were cast in the laboratory. In order to obtain high performance forged suspension parts, the hot compression tests of the ingot were carried out. The results show that the subgrain fraction of the forged ingot was strongly affected by Zener-Hollomon parameters (Z parameters). The intermediate Z parameters, 1.09×10^16 s^-1, will contribute to the larger number fraction of subgrains inside the forged ingot, which contributes to the high performance of the forged products. 展开更多
关键词 near-net shape DC casting Z parameter SUBGRAINS automobile suspension part aluminum alloy
下载PDF
Sheet Metal Forming Simulation and Its Application in Stamping Process of Automobile Panels 被引量:4
9
作者 张扬 张连洪 +1 位作者 李双义 王洪志 《Transactions of Tianjin University》 EI CAS 2002年第4期269-272,共4页
The paper starts with a brief overview to the necessity of sheet metal forming simulation and the complexity of automobile panel forming, then leads to finite element analysis (FEA) which is a powerful simulation too... The paper starts with a brief overview to the necessity of sheet metal forming simulation and the complexity of automobile panel forming, then leads to finite element analysis (FEA) which is a powerful simulation tool for analyzing complex three-dimensional sheet metal forming problems. The theory and features of the dynamic explicit finite element methods are introduced and the available various commercial finite element method codes used for sheet metal forming simulation in the world are discussed,and the civil and international status quo of automobile panel simulation as well. The front door outer panel of one certain new automobile is regarded as one example that the dynamic explicit FEM code Dynaform is used for the simulation of the front door outer panel forming process. Process defects such as ruptures are predicted. The improving methods can be given according to the simulation results. Foreground of sheet metal forming simulation is outlined. 展开更多
关键词 finite element analysis dynamic explicit methods sheet metal forming finite element method codes automobile panel computer simulation APPLICATION
下载PDF
Computer Network Control System in Automatic Automobile Detection
10
作者 高岩 窦丽华 +1 位作者 高琪 周宁 《Journal of Beijing Institute of Technology》 EI CAS 2001年第4期406-411,共6页
An automobile test controlling and managing system with computer network is introduced. The architecture of the local network, hardware structure, software structure, design of the test process, and error tolerating r... An automobile test controlling and managing system with computer network is introduced. The architecture of the local network, hardware structure, software structure, design of the test process, and error tolerating redundant design in work position substituting are presented. At last, the pivotal questions solved are discussed. With an advanced structure, this system is multi functional and flexible. Furthermore, advanced computer technology is adopted to improve its technical degree. 展开更多
关键词 computer control system local network automobile test error tolerance
下载PDF
Automatic Control of Automobile Transmission Performance Test Stand
11
作者 阎清东 项昌乐 冯永存 《Journal of Beijing Institute of Technology》 EI CAS 1998年第2期178-183,共6页
To realize automatic control of automobile transmission performance test stand Methods The automatic control technique of the lubricant temperature,the program- controll- edautomaticshifting of the transmission,the c... To realize automatic control of automobile transmission performance test stand Methods The automatic control technique of the lubricant temperature,the program- controll- edautomaticshifting of the transmission,the continuous adjusting of revolution speed and load, data-acquisition and data real-time processing were adopted.Results The lubricant temperature was controlled at the set temperature ±2℃.The automatic shifting of the trans- mission is simple,reliable and accurate.The automatic adjusting of load and rotation speed is rapidandaccurate,the torque divergence is ±1N·m,the rotation speed divergence is ±5r/min Conclusion The four kinds of techniques are applied into the automobile transmission perfor- mance test stand successfully. mancetest stand successfully. 展开更多
关键词 automobile transmission performance test computer-aided test automatic control
下载PDF
Translation of Automobile Brands from the Perspective of Skopos Theory
12
作者 刘竹林 王俊 《海外英语》 2013年第15期135-137,共3页
With the steady growth of the Chinese economy,more and more countries are focusing on China.A great number of brands are entering the Chinese market and auto brand is one of them.Brand translation plays an important r... With the steady growth of the Chinese economy,more and more countries are focusing on China.A great number of brands are entering the Chinese market and auto brand is one of them.Brand translation plays an important role for success of opening international market.This paper applies the Skopos theory to automobile brand translation,so as to provide a new angle to translation practice. 展开更多
关键词 BRAND TRANSLATION the Skopos THEORY automobile BRA
下载PDF
Problems and Solution in Teaching of Automobile English
13
作者 许敏 王芳 《海外英语》 2016年第4期238-239,共2页
In view of the problems in teaching of automobile English in our college, it discusses these problems and gives some proposals from four aspects: to stimulate students' interest and initiative, to select reasonabl... In view of the problems in teaching of automobile English in our college, it discusses these problems and gives some proposals from four aspects: to stimulate students' interest and initiative, to select reasonable teaching materials, to improve teaching methods and means and to enhance the comprehensive qualities of teachers. 展开更多
关键词 ESP automobile ENGLISH TEACHING method
下载PDF
Dent Resistance for Automobile Body Panels 被引量:6
14
作者 LU Hongzhou MA Mingm +1 位作者 YOU Jianghai LI Zhigang 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2009年第6期903-911,共9页
Dent resistance of automobile body panels is an important property for automobile design and manufacture, but the study on this aspect is not still profound. This study is to summarize the testing methods and physical... Dent resistance of automobile body panels is an important property for automobile design and manufacture, but the study on this aspect is not still profound. This study is to summarize the testing methods and physical significations of static and dynamic dent resistance of automobile body panels combined with the author's study, and to analyze the dent behaviors in the round. Several influence factors on dent resistance are expatiated including the mechanical properties of materials, stress states after forming, bake hardening ability, modulus, methods of testing, and structure of specimens and so on. The automotive lightweight and application of high strength steel sheets and aluminum alloys sheets are analyzed, and the significance of testing of dent resistance, especially for dynamic dent resistance of auto-panels, and the finite element simulation analysis are emphasized. To explain the physical phenomenon of dent behaviors, the latest and concerned study results are also discussed. According to this study, a dent resistance test and evaluation standard of Society of Automotive Engineers of China for automotive body panel is presented and is being carried out, and an industry conference is hold to discuss the working-out of the standard, a primary schedule of this standard is confirmed now. The study can guide the further testing and study of dent resistant of auto-panels. 展开更多
关键词 dent resistance dent resistance test automobile body panels dynamic dent resistance STIFFNESS
下载PDF
Preparation of composite aluminum automobile radiator by inversion casting 被引量:3
15
作者 李娜 陈彦博 +2 位作者 孟宪云 赵宏亮 温景林 《中国有色金属学会会刊:英文版》 CSCD 2001年第1期138-140,共3页
The inversion casting technics of producing three ply Al Mn/Al Si composite strap used in automobile radiator was studied. The physical processes of inversion casting, including the flux supporting reacting and volati... The inversion casting technics of producing three ply Al Mn/Al Si composite strap used in automobile radiator was studied. The physical processes of inversion casting, including the flux supporting reacting and volatilizing at high temperature, the melting and solidification when the elements of solid and liquid fresh alloys meet with each other, the mutual diffusion of elements in solid and liquid, the crystallization and forming of metallurgical combination and the following rolling process, were analyzed. At the same time, the composite mechanism of this technique was also discussed. [ 展开更多
关键词 COMPOSITE ALUMINUM alloy INVERSION CASTING automobile RADIATOR COMPOSITE mechanism
下载PDF
Invited Review Reduction,reuse and recycle of spent Li-ion batteries for automobiles:A review 被引量:8
16
作者 Toyohisa Fujita Hao Chen +4 位作者 Kai-tuo Wang Chun-lin He You-bin Wang Gjergj Dodbiba Yue-zhou Wei 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2021年第2期179-192,共14页
The demand for Li-ion batteries (LIBs) for vehicles is increasing. However, LIBs use valuable rare metals, such as Co and Li, aswell as environmentally toxic reagents. LIBs are also necessary to utilize for a long per... The demand for Li-ion batteries (LIBs) for vehicles is increasing. However, LIBs use valuable rare metals, such as Co and Li, aswell as environmentally toxic reagents. LIBs are also necessary to utilize for a long period and to recycle useful materials. The reduction, reuse,and recycle (3R) of spent LIBs is an important consideration in constructing a circular economy. In this paper, a flowsheet of the 3R of LIBs isproposed and methods to reduce the utilization of valuable rare metals and the amount of spent LIBs by remanufacturing used parts and designingnew batteries considering the concept of 3R are described. Next, several technological processes for the reuse and recycling of LIBs are introduced.These technologies include discharge, sorting, crushing, binder removal, physical separation, and pyrometallurgical and hydrometallurgicalprocessing. Each process, as well as the related physical, chemical, and biological treatments, are discussed. Finally, the problem of developedtechnologies and future subjects for 3R of LIBs are described. 展开更多
关键词 Li-ion battery REDUCTION REUSE RECYCLE PROCESSING automobiles
下载PDF
Emission Characteristics of VOCs from Automobile Coating Industry in Chongqing City 被引量:3
17
作者 Zhou Zhi'en Fang Weikai +2 位作者 Luo Qian Wang Xiaochen Wu Liping 《Meteorological and Environmental Research》 CAS 2017年第3期36-41,43,共7页
To fully analyze emission characteristics of volatile organic compounds( VOCs) from automobile coating industry in Chongqing City,related enterprises in the city were investigated in detail. The results show that the ... To fully analyze emission characteristics of volatile organic compounds( VOCs) from automobile coating industry in Chongqing City,related enterprises in the city were investigated in detail. The results show that the emission of VOCs from the automobile industry in Chongqing City was approximately 20 000 t in 2012,and the contribution rate of automobile coating was 83%. Most VOCs discharged from automobile coating industry were mainly from the use of coatings,diluents,curing agents and other materials containing VOCs. During the process of automobile coating,VOCs were mainly produced during the processes of spraying and drying. Besides,VOCs are partly produced during the processes of mixing paint,gluing,waxing,and repairing. The major ingredients of VOCs discharged during the process of automobile coating were methylbenzene,dimethylbenzene,trimethylbenzene,cumene,ethyl acetate,butyl alcohol,n-butyl alcohol,isobutyl alcohol,formaldehyde,butanone,acetone,cyclohexanone,and methyl ethyl ketone. Besides,the ingredients of naphtha and aromatic hydrocarbon in VOCs need to be determined. The maximum ozone formation potential( OFP) of the above pollutants by the typical enterprises was 900-1 300 mg/m^3. The production of secondary organic aerosol( SOA) was 3 636-11 073 t/a,which didn't include the contribution of aldehydes,ketones,ethers and esters to SOA. This research could provide scientific reference for the establishment of emission standard,control technology and management methods of VOCs from automobile coating industry that accord with economic and social development in Chongqing City. 展开更多
关键词 automobile COATING VOCS ENVIRONMENTAL impact OZONE SOA
下载PDF
Magnetic properties and heavy metal contents of automobile emission particulates 被引量:5
18
作者 卢升高 白世强 +1 位作者 蔡景波 徐昶 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE EI CAS CSCD 2005年第8期731-735,共5页
Measurements of the magnetic properties and total contents of Cu, Cd, Pb and Fe in 30 automobile emission particulate samples indicated the presence of magnetic particles in them. The values of frequency dependent sus... Measurements of the magnetic properties and total contents of Cu, Cd, Pb and Fe in 30 automobile emission particulate samples indicated the presence of magnetic particles in them. The values of frequency dependent susceptibility (Xfd) showed the absence of superparamagnetic (SP) grains in the samples. The IRM20mT (isothermal remanent magnetization at 20 mT) being linearly proportional to SIRM (saturation isothermal remanent magnetization) (R^2=0.901), suggested that ferrimagnetic minerals were responsible for the magnetic properties of automobile emission particulates. The average contents of Cu, Cd, Pb and Fe in automobile emission particulates were 95.83, 22.14, 30.58 and 34727.31 mg/kg, respectively. Significant positive correlations exist between the magnetic parameters and the contents ofPb, Cu and Fe. The magnetic parameters of automobile emission particulates reflecting concentration of magnetic particles increased linearly with increase of Pb and Cu content, showed that the magnetic measurement could be used as a preliminary index for detection of Pb and Cu pollution. 展开更多
关键词 automobile emission particulates Magnetic properties Heavy metal Environmental magnetism
下载PDF
Application Research on Self-healing Technology with Microcapsules for Automobile Brake Pad 被引量:1
19
作者 张力 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2009年第1期91-94,共4页
In order to improve the performance of non-asbestos composite auto brake pads that are composed of matrix resin, reinforced material and fillers, a novel method with new technology of self-heal microcapsules was propo... In order to improve the performance of non-asbestos composite auto brake pads that are composed of matrix resin, reinforced material and fillers, a novel method with new technology of self-heal microcapsules was proposed. Nano reinforced fillers' effects were also considered in the experiment project. Five recipe designs for new composite auto brake pads were carried out and cor-responding samples were prepared as well. The friction coefficient and wearing properties at certain temperature, impact intensity and hardness were comparatively studied. Investigations indicate that properties of such composite auto brake pads meet the requirements of the national standards while microcapsule's weight content varies from 5.5wt%-1.09wt% of matrix resin and microcapsule's loca-tion varies in the pads. Nano reinforced fillers have the effects of increasing composites' impact in-tensity and hardness. Application of self-healing microcapsules in auto brake pads is feasible. 展开更多
关键词 COMPOSITE automobile brake pad MICROCAPSULE self-heal
下载PDF
Influence of Tip Clearance on Unsteady Flow in Automobile Engine Pump 被引量:6
20
作者 Jiacheng Dai Jiegang Mou Tao Liu 《Fluid Dynamics & Materials Processing》 EI 2020年第2期161-179,共19页
The automobile engine pump is an important part of the automobile cooling system,and has a direct influence on the engine performance.Based on the SST k-ωturbulence model,unsteady numerical simulation for an automobi... The automobile engine pump is an important part of the automobile cooling system,and has a direct influence on the engine performance.Based on the SST k-ωturbulence model,unsteady numerical simulation for an automobile engine pump with different tip clearances was carried out by Fluent.To study the flow field characteristics and pressure fluctuation,the characteristics of secondary flow distribution in volute are also analyzed.The result shows that the pressure fluctuation characteristics of the flow field show obvious periodic variation at different levels of tip clearances.The peak value of pressure fluctuation at each monitoring point is dependent on the blade frequency.At the same time,with the increase of the tip clearance,the pressure fluctuation in the blade and volute is gradually increased,while the pressure fluctuation at the tip is reduced clearance.The pressure gradient in the pump also varies periodically with the rotation of the impeller.With the increase of the tip clearance,the pressure of the impeller,volute and tip clearance is gradually decreased.There are secondary flow vortexes inside the impeller,volute outlet and volute section.With the increase of tip clearance,the vortex intensity in the impeller channel is weakened,and the vortex strength at the volute outlet is intensified.On the cross section of the volute,the morphology of most vortexes has insignificant changes,but the vortex intensity decreased. 展开更多
关键词 automobile engine pump tip clearance pressure fluctuation secondary flow
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部