A new method was worked out to improve the precision of springback prediction in sheet metal forming by combining the finite element method (FEM) with the data
A high-speed dual-modulus divide-by-32/33 prescaler has been developed using 0.25 μm CMOS technology. The source-coupled logic (SCL) structure is used to reduc
Problems in modeling of sub-mini aerial vehicles (SMAV) are discussed in this paper. Contraposing properties of SMAV,various factors affecting dynamic performan
The adsorption characteristics of Pb on sediments of the Dianshan Lake in Shanghai was studied. The results show that (1)the relationship between the amount q o