A diode pumped intracavity frequency-doubled Nd: YVO4 laser emitting at 671 nm with a type- Ⅱ noncritical phase-matched LBO crystal is reported. A maximum output power at 671 nm of 404 mW was obtained unde...
THE colossal magnetoresistance (CMR) effects in doped perovskite-like oxide have stimulatedconsiderable attention to the study of fundamental physics and the application of new type ma-terials. It was reported that a ...
Project supported by the Structure Research Laboratory, University of Science and Technology of China, Academia Sinica
Ⅰ. INTRODUCTION Computer-assisted molecular design and synthetic planning is an important aspect in modern chemical research. To give assistance to chemical design, a computer should acquire the ability to recognize ...
Ⅰ. INTRODUCTION High Tc superconducting material in YBa2Cu3O7-x system has become extremely attractive recently. The researches about its structure, phases and superconductivity properties etc. have been going rapidl...
Definition. Let M=〈X,Y,S,δ,λ〉and M’=〈Y,X,S’,δ’,λ〉be two finite automata.For any s in S and s’ in S’, if for any x0,x1,… in X there exist x-τ,…, x-1 in X such that λ’(s’, λ(s, x0x1…))=xτ…x1x...
Ⅰ. INTRODUCTION In nature there exists a matching rule, that is, some things can match each other. If A has matched with B, then A cannot match with a third thing C. This behaviour can be beautifully represented with...