Empirical analysis of constructional quality of concrete structures in rural house based on AHP and fuzzy comprehensive evaluation
The assessment of the basic idea and technical details about the constructional quality of concrete structures in rural house based on the AHP and fuzzy comprehensive evaluation method are discussed. The assessment level system are designed according to the reference named the state standard “Code for acceptance of constructional quality of structures in rural house” which is compiling. Delphi-method, analytic hierarchy process and fuzzy comprehensive evaluation method are comprehensively utilized. The awareness and satisfaction in quality of the concrete structures in rural house about the managers and farmers are revealed. The satisfaction degree of the constructional quality of concrete structures in rural house belongs to the average. Concrete quality inspection, Concrete preparation and concrete casting should be focused on in the improvement process of constructional quality of concrete structures in rural house.
RESEARCH ON CONSTRUCTION QUALITY ACCEPTANCE OF SELF-HELP HOUSING OF RESIDENTIAL AREAS IN VILLAGES
At present,The self-help housing and the residential areas are two types of self-help housing with farmers in villages.It is a matter of concern that how to carry out for construction quality acceptance.Through field research,The construction quality acceptance of the self-help housing of residential areas in villages of Shigang town of Jiangsu were summarized.The existing problems were analyzed.Basic research have been carried out for a better quality acceptance of uniform standards.
New approach to vision-based BGA package inspection
Ball grid array (BGA) techniques have developed very fast due to the advantages of more I/O ports, small size, and so on. In this paper, a vision-based algorithm for BGA package inspection is proposed to accurately estimate center and diameters of solder-balls of BGA packages, so that defects of BGA packages, such as missing or extra balls, oversize or undersize balls, over-height or under-height balls, and pitch can be detected for ensuring the quality of BGA packages.