N，N＇－1，4－亚丁基双螺吡喃和双螺噁嗪的合成及光致变色性能

合成三种Ｎ，Ｎ＇－１，４－亚丁基双螺吡喃和双螺噁嗪光致变色化合物，通过红外光谱、核磁共振氢谱及元素分析确证其结构。这些化合物熔点比相应的单螺环化合物高。还研究了闭环体与开环体（部花菁）的光致变色性能，发现双螺环化合物开环体的热稳定性较单螺环化合物高。     

2—N,N‘—1,4—亚丁基双螺吡喃和双螺恶嗪的合成及光致变色性能

合成三种Ｎ，Ｎ‘－１，４－亚丁基双螺吡喃和双螺恶嗪光致变色化合物，通过红外光谱，核磁共振氢谱及元素分析确证其结构。这些化合物熔点比相应的单螺环化合物高。还研究了闭环体与开环体的光致变性能，发现双螺环化合物开环体的热稳定性单螺环化合物高。     

新疆特色农产品品牌建设现状分析

品牌就是竞争力,加速推进和实施特色农产品品牌建设,既是新疆农业及农村经济发展的要求和历史选择,也是走新疆农业面向世界、实现与国际接轨的必然趋势。本文首先分析新疆农产品品牌的现状分析．找出存在的问题,最后提出相应的解决对策。     

利用二氧化碳的缓慢释放控制聚丙烯酰胺在含柠檬酸铬水溶液中的粘度

Partially hydrolyzed polyacrylamide (HPAM) has been widely used for water shut-off and profile control to enhance oil recovery. Herein, we reported a novel technique by which the crosslinking between HPAM and Cr³⁺ in aqueous solutions at 60 ℃ can be delayed effectively. Citric acid was selected as an organic complexing agent of Cr³⁺ so that the crosslinking between HPAM and Cr³⁺ can be prevented completely. Due to the decomposition of the bicarbonate (HCO₃^-) embedded in solution, CO₂ released from solution and the pH value of solution increased gradually. The degree of ionization of HPAM and its ability to complex with Cr³⁺ increased accordingly. When the complexation of Cr³⁺ with HPAM is stronger than that with citric acid, the viscosity of the HPAM solution increased significantly. Under the closed condition, together with the existence of potassium dihydrogen phosphate (KH₂PO₄), the release of CO₂ was very slow and the condition was highly controlled so that the ionization of HPAM was prevented initially. Furthermore, the hydrogen bonding interactions between HPAM and melamine embedded in solution previously also postponed the ionization of HPAM. As a result, the crosslinking between HPAM and Cr³⁺ can be delayed for almost one month, completely meeting the requirements for deep water shut-off and profile control to enhance oil recovery.     

任意质量分布物体的引力势

首先讨论了天体力学中常见的二体问题,然后将两个有限大小并具有任意质量分布的物体之间的引力作用简化成一个有限大小并具有任意质量分布的物体与一个质点之间的吸引,最后用级数展开法给出了任意质量分布物体的引力势。     

5-取代螺嗪合成及光致变色性能

合成了三种５－取代螺嗪光致变色化合物。通过红外光谱、核磁共振氢谱、元素分析确证了其结构。探讨了所引入取代基的取代基常数（λｐ）与λｍａｘ的关系。在聚碳酸酯片基内做了暗褪色动力学测试，发现暗褪色反应遵循一级反应模式。两性抗衡离子盐对提高有色态的稳定性有显著的效果。     

5—取代螺恶嗪合成及光致变色性能

合成了三种５－取代螺恶嗪光致变色化合物。通过红外光谱、核磁共振氢谱、元素分析确证了其结构。探讨了所引入取代基的取代基常数（λｐ）与λｍａｘ的关系。在聚碳酸酯片基内做了暗褪色动力学测试，发现暗褪色反应遵循一级反应模式。两性抗衡离子盐对提高有色态的稳定性有显著的效果。     

双（1,2—二芳基—1,2—二硫代乙烯）镍配合物合成及光稳定作用

合成了通式为Ｎｉ（ＲＣＳＣＳＲ’）２的６个配合物，这些配合物可由对称或不对称安息香中间体制得。讨论了它们对多甲川菁染料ＨＩＴＣＩ的光稳定作用，发现含镍配合物的染料溶液光退色速度低于不含镍梧合物浓工。