1Preparation of highly isolated TiO2-SiO2 binary oxides and its photocatalytic propertyZHANG Xiao-boChemistry and Chemical Industry289-2942Study of serine and threonine dipeptids conformations usung ABEEM/MM ModelZHANG Xia, ZHANG Qiang, ZHONG Zhi-YangChemistry and Chemical Industry295-2993Selective Monobromination of Methyl 1—Acetylazulene—3—carbolate with [Bmim]Br3WANG Dao-lin, XU Jiao, DENG Jin-jun, GU Zheng, HAN ShanChemistry and Chemical Industry300-3034Status quo and progress in research nano-SiO2LI-xi, LIU Lian-li, WANG Li-liChemistry and Chemical Industry304-3085Analysis of corrosive condition of certam iol—well pipes in Tahe Oil FieldLI Guo-hao, GU Tan, HUO Shao-quan, XING Jin-juan, zheng KaiChemistry and Chemical Industry309-3116Research of hydrolysis relative intensity of (NH4)and CO3NH4HCO3JIN Xin-quan, PENG Xiu-zhe, CAI YuanChemistry and Chemical Industry312-3157An image denoise and enhancement algorithm based on human visual properties and median filteringCHI Dong-xuan, JI Jing-na, WEN Xue-bingMathematics Research316-3188One class of new loop algebra and its Liouville integrablehierarchy of evolution equationsXIA Tie-cheng, LI Ji, ZHAO RongMathematics Research319-3219Qualitative proof of Abelian integrals of L—V systemsJIN Tie-yingMathematics Research322-32510A method in solving smooth route of variational inequalityYU Wen-boMathematics Research326-32811Static bifurcation of seven—mode Lorenz equation for Navier—stokes equationsNIU Hong, ZHANG Ya-junMathematics Research329-33312Semi—discretization of a repairable system with two types of repair facilitiesZHENG Fu, LI DongMathematics Research334-33913Optimization condition for a class of multi—objective generalization convex programmingBAO Fu-li, YU Xian-wei, XIAO Hong-weiMathematics Research340-34314Existence of global solutions toβ + 1 ＜ p ＜ α + 2 ＜ p + p(β + 1)/nZHANG Ya-yang, TANG Jun-jianMathematics Research344-34815Investigation and Study of Middle School Students' Selectivity of Mathematics LearningZHANG Wen-yu, ZHANG Shou-bo, FAN Wen-gui, LI Wei-huaMathematics Research349-35316Spectral character of magnetic field generated by ocean wavesZHANG Zi-li, WEI Wen-bo, LI Geng-wei, JIN ShengPhysics and Engineering354-35717Research of molding craft about roller cage of engineering plasticsZHOU Tian-boPhysics and Engineering358-36118Understanding and application of effect of quantum measurement of nanometer materialsQI Xiao-Hua, TONG Hui, Xu Cui-yanPhysics and Engineering362-36319Precisely measure grating constant by applying STMLI Bo-xinPhysics and Engineering364-36620Function of parallel capacitor in fluorescent lamp circuit and clarification of an easily misunderstood questionWANG Long, FEI YingPhysics and Engineering367-369 