摘要：According to the chemiluminescence reaction mechanism of nitric oxide(NO)and ozone(O_(3)),a new cylindrical total reflection S-type optical cavity design for rapid detection of NO gas is *** optical cavity model is based on the total reflection S-type structure.on the inner wall of the *** software ZEMAX was used to simulate the optical path of the model,and software FLUENT was used to simulate and verify the *** comparative analysis showed that the chemiluminescence collection efficiency of the S-type optical cavity collection path was 36.6%,and the gas reaction and mixing in the S-type optical cavity model was more sufficient,and the reaction mixing stability error was 0.049,which was 2 times higher than the traditional stability *** model is simple in structure.and meets the new national *** provides a practical idea of design for the real-time exhaust gas detection.

摘要：The inverse design method of a dynamic system with linear parameters has been studied. For some specified eigenvalues and eigenvectors, the design parameter vector which is often composed of whole or part of coefficients of spring and mass of the system can be obtained and the rigidity and mass matrices of an initially designed structure.can be reconstructed through solving linear algebra equations. By using implicit function theorem, the conditions of existence and uniqueness of the solution are also deduced. The theory and method can be used for inverse vibration design of complex structure.system.

摘要：By means of ab initio HF and DFT B3LYP methods, the structure.of Gaq3 (q = 8-hydroxyquinoline) was optimized. The frontier molecular orbital characteristics and energy levels of Gaq3 have been analyzed systematically in order to study the electronic transition mechanism in Gaq3. Three derivatives of Gaq3 and their polymers were designed and the possibilities that they were employed as luminescent materials were discussed. The regularities and characteristic of energy bands of Gaq3 and its derivatives were also investigated. The results show that the electronic π-π* transitions in Gaq3 are localized on the quinolate ligands. The emission of Gaq3 is due to the electron transitions from a phenoxide donor to a pyridyl acceptor. Two possible electron transfer pathways are presented, one by carbon atoms, and the other via metal cation Ga3+. The derivatives of Gaq3 may possess high luminescence efficiency.

摘要：*** target physics computation The purpose of physical check is mainly to check whether the parameters in the XADS reports[1]are reasonable,to give the results and analysis and get the energy distribution of the target window and target zone,so as to provide heat source for thermal engineering and *** to the reference,the proton beam energy is 600 MeV and the beam current is 6 *** footprint of the beam has a circular shape with the radius of 8 cm and the beam intensity following an elliptical radical distribution is *** thickness of target window and beam tube is 3 mm,and the thickness of structural material is 5 mm,and the spherical radius of target window is 10 *** metal material is *** physical check calculations are accomplished by *** final physical results are showed in Table 1.