Taking the lifting lug of automobile exhaust pipe as research object, geometric modeling was established. The analyzed by finite element method using Ansys software, and structure optimized according to topology optimization method. 20% area model taken area, new established for verification. verification results showed that maximum stress deformation were increased some extent. However, it sti...

With gasoline at a record $2.50 a gallon in the United States, and with the passage of the Energy Policy Act of 2005, now is a good time to see where the United States has been and where it might be heading in the near future, in regard to automobiles and government policies to regulate their efficiency. In this paper, I will first look at the recent history of American energy policy as applied...

Since the beginning of 21st century, China's automobile market has shown a rapid development trend. To meet domestic demand for industry and provide convenience transportation, manufacturers have made long-term innovations, explorations, theoretical verifications, designed more advanced reasonable materials manufacturing processes, gradually moving towards lightweighting adopting processes. Thi...

BACKGROUND Occupational and environmental exposures mostly represent mixtures of genotoxic agents, whereas the specificity of biomarker measurements varies widely. Exploration of correlations among biomarkers contributes to the further progress of molecular cancer epidemiology and to the selection of the optimal biomarkers for the investigation of human exposure to carcinogens. The aim of this ...

Automobile crashes are the leading cause of death for those aged 3 to 33, with 43,005 (118 per day) Americans killed in 2002 alone. Seat belt use reduces the risk of serious injury in an accident, and refraining from using a cell phone while driving reduces the risk of an accident. Cell phone use while driving increases accident rates, and leads to 2,600 U.S. fatalities each year. An active pro...

Accurate measurements of air and fuel flows in automobile engines are critical because they govern the fuel-air mixing processes in the combustion chamber that could directly impact the combustion efficiency and exhaust emissions. In this paper, we present preliminary results on using ionic polymer-metal composite (IPMC) materials as a flow sensing mechanism for automotive applications. Under a...

A green windshield at night reduces acuity from 20/32 to 20/46, and combined with pink glasses to 20/60. Resolution thresholds decreased from 10 to 42 seconds of arc, so that a pair of objects that could be seen through a clear windshield at 100 feet decreased to 25 feet through the green. Other visual functions found "defective in night-driving conditions with tinted glass" were stereo acuity,...

Based on reviewing resource theory, social capital theory, organizational learning, and technological evolution and related theories, and analyzing of environments that auto mobile enterprises in China face, the authors put forward a conceptual framework of competitive advantage and technology catching up of Independent Brand automobile enterprises in China. The model indicates that market iden...

Comfort on automobile seats is lived daily by thousands of drivers. Epistemologically, comfort can be understood under the theory of complexity, since it emerges from a chain of interrelationships between man and several elements of the system. This interaction process can engender extreme comfort associated to the feeling of pleasure and wellbeing or, on the other hand, lead to discomfort, nor...