Unexpected, serious deformation failures have occurred during construction of a main shaft. A study of construction parameters of the main shaft is required. Fi
The grinding properties of abandoned concrete, which consists primarily of hardened cement, limestone aggregate and river sand, are studied. Theoretical models
A video patrol and inspection system is an important part of the governments shipping channel information management. This system is mainly applied to video inf
Text classification techniques mostly rely on single term analysis of the document data set, while more concepts,especially the specific ones, are usually conve