温度场对自蔓延高温合成致密化的影响

在自蔓延高温合成（SHS）致密化工艺中，准确确定施压滞后时间是工艺控制的关键．施压滞后时间的上限值一般是根据SHS过程的坯块表面温度与时间关系曲线获得，难以真实地反映坯块内的温度变化．作者以传热学理论为基础，针对SHS－准热等静压过程，建立了燃烧产物内的温度分布方程，并以此解释了最终产物内密度分布存在差异和形状变化的原因．     

Studies on a series complexes of copper (II), zinc (II), cobalt (III) with Schiff base derived fromd-glucosamine and salicylaldehyde

Copper (II) zinc (II) cobalt (III) complexes with the Schiff base derived from salicylaldehyde andd-glucosamine were synthesized. These compounds abbreviated as SG, CuSG, ZnSG, CoSG were characterized by elemental analyses, IR, UV-Vis,¹H NMR and MS spectrum. ESR spectrum, magnetic susceptibility measured by Evans method for CuSG had also been done. It is suggested that the complexes in solution have pseudotetrahedral structure. It was found that SG would occur a photochemical reaction if a beach of 355 nm ultravisible light shone on its aqueous solution. The reaction was in further research. Supported by the National Natural Science Foundation of China Ye Yong: born in 1970, Ph. D graduate student     

Studies on syntheses of biscrown ether compounds

Multi-ester type biscrown ether compound(I) was prepared by the reaction of 6-bromoacetacetic ester dibenzo-16-crown-5(7) with phenyl-methyl ether-2,6-diformic acid potassium salt in anhydrous DMF at refluxed temperature, and color biscrown ether compound(II) was prepared by the reaction of 4′-aminobenzo-15-crown-5(12) with 2,2′(O-formoyl naphthyl)ethyl ether (9) in anhydrous ethanol at 40 C under N₂. New compounds(I, II) were characterized by IR,¹H NMR, MS and elemental analysis. Supported by the National Natural Science Foundation of China Niu Changrong: born in December, 12, 1938, Professor     

对称组合系统的鲁棒输出调节

研究了对称组合系统的鲁棒输出调节问题。结果表明，对称组合系统的鲁棒输出调整问题可以转化为两个修正的低阶子系统的鲁棒输出调节问题。并可通过考察两个低阶矩阵行的线性相关性得到解决。     

SYNTHESIS AND PURIFICATION OF N,N''''-E1S(P-CARBOMETHOXYBENZOYL)BUTANEDIAMINE(T4T-DIMETHYL)

T4T-dimethyl is commonly employed as hard segment when polyesteramide is produced. Polyesteramide is one of thermoplastic elastomers, like polyurethane which is composed of two different types of segments, usually referred to as soft and hard segments. The characters of hard segment have much influence on the properties of the polymer. To get the polyesteramide with high order, it is desirable to make T4T-dimethyl pure. In this paper, how to synthesize, to purify as well as to detect the purity of T4T-dimethyl are described in detail.     

1,4,6,9—四硝基—1,4,6,9—四氮杂双环[4,4,0]癸烷合成工艺改进

以乙二胺和乙二醛为原料，合成了１，４，６，９－四氮杂双环（４，４，０）癸烷（１），反应得率为７７．５％，母体化合物（１）在硝酸－乙酐体系中硝化，制得１，４，６，９－四硝基－１，４，６，９－四氮杂双环（４，４，０）癸烷（２），文中研究了合成母体化合物（１）的缩合总得率高达６４．０％，熔点为２２４￣２３０℃，文中研究了合成母体化合物（１）的缩合反应的机理和影响因素，讨论了母体化合物（１）硝化反应的影响     

Automatic Structural Synthesis for Planar Kinematic Chains Containing Higher Pairs

ＡｕｔｏｍａｔｉｃＳｔｒｕｃｔｕｒａｌＳｙｎｔｈｅｓｉｓｆｏｒＰｌａｎａｒＫｉｎｅｍａｔｉｃＣｈａｉｎｓＣｏｎｔａｉｎｉｎｇＨｉｇｈｅｒＰａｉｒｓＺｈａｎｇＰｅｉｙｕ（张培玉），ＪｉｎＤｅｗｅｎ（金德闻），ＬｉＧｕｉｘｉａｎ（李瑰贤）＋，ＨｕａｎｇＣ...     

广义系统的平稳振荡问题

运用Ｌｙａｐｕｎｏｖ函数方法研究一类广义系统的平稳振荡问题，并给出了实现的例子。     

聚氯乙烯－吡啶树脂的合成及其催化性能

聚氯乙烯与吡啶在浓氢氧化钠存在下制备了聚氯乙烯－吡啶树脂，它可用作相转移催化剂，对于许多有机反应具有良好的催化效果．     

月桂酸烷醇酰胺磷酸酯的制备及性能

以月桂酸甲酯与单乙醇胺反应制得了月桂酸单乙醇酰胺，再与Ｐ_２Ｏ_５反应合成了一种新型阴离子表面活性剂──烷基醇酰胺磷酸酯盐，初步探讨了该物质的合成条件，并测定了其物化性能。