In an expressway extension project in Jiangsu, a joint detection of the existing road conditions is adopted, i.

The method of study relationship between accidents and road conditions is summarised.

By analysing the main cause of quality descenting of highway condition,the paper proposed some relative measures for assuring the stability of road condition.

Research on Assessment of Expressway Asphalt Pavement Condition and Maintenance Method;

On the base of researching highway conditions evaluating method at home and abroad,combined with our provincial practice of freeway,the authors establish a grey evaluating method,which has higher theoretical and practical value.

The attribute recognition model of road states evaluation was discussed,and the power weight was worked out with the entropy method,which reduced the subjectivity,improved the reliability.

The microscopic friction during nanomanipulation was studied using the tip of an atomic force microscope to cut and manipulate carbon nanotubes with excellent mechanical and electrical properties for different surface conditions.

In this paper,by the theory of psychology and physiology,the correlation research between asphalt pavement surface conditions and passengers\' electrocardiogram had been done by the aid of equipments: Driving Simulation Module and Dynamic Multi-parameter Detector.

In view of the customer to reflect the power plug connectors of the problem,from the plating thickness, plating the surface conditions,lubrication and plating the surface of plating hardness,etc.