H（M）zsm—5杂质子表面酸性的研究

本文用ＣＮＤＯ／２方法，研究了不同Ｈ（Ｍ）ＺＳＭ－５杂原子沸石的表面酸性，优化了杂原子的成键参数，结果表明，沸石表面Ｂ酸性与羟基质子电荷顺序一致，用气相脱质子能预测杂原子沸石表面酸性，与实验符合很好。     

合成一系列晶粒大小不同的ZSM-5沸石规律的探讨

本文研究在ZSM-5沸石合成中,变温晶化、恒温晶化、导向剂的加入、水钠摩尔比、硅铝比、NaCl的加入和搅拌等因素,对ZSM-5沸石晶粒大小的影响。发现要调变ZSM-5沸石的晶粒度,可采用以下的方法:1.先高温后低温的变温晶化以及改变高温阶段的时间;2.先低温后高温的变温晶化以及使用不同的低温;3.恒温晶化时采用不同的温度;4.改变导向剂加入量、水钠比、硅铝比、NaCl加入量和搅拌转速。     

文昌鱼eIF5A基因的克隆和进化学分析

对文昌鱼神经胚cDNA文库进行测序和系统分析，首次从青岛文昌鱼(Brachiostoma belcheri tsingtauense)中成功得到1个eIFSA基因的cDNA序列，分析其推导的氨基酸序列揭示该基因产物具有eIF-5A家族蛋白质共有的保守区．对其二级结构进行预测，序列同源性分析表明eIF-5A家族基因在所有的真核生物中都高度保守．进化生物学的分析显示文昌鱼的eIF5A基因与脊椎动物的同源性较高，     

水介质中合成5-芳亚叉基罗丹宁

报道了一种合成5-芳亚叉基罗丹宁的新方法．由芳香醛与罗丹宁在碳酸钾水溶液中，于十六烷基三甲基溴化铵(CTMAB)存在下，室温搅拌生成．此方法具有反应简便、收率高、成本低的特点，是对环境无害的合成方法．     

Effect of crystallization of CaO-P2O5-SiO2-MgO-F glass-ceramics on its mechanical properties

The microstructure of CaO-P2O5-SiO2-MgO-F glass-ceramics during crystallization were investigated and the crystallized phases wereidentified with DTA (Differential Thermal Analysis), SEM (Scanning Electron Microscope) and XRD (X- ray Diffraction) techniques. The mechanical properties such as bending strength and fracture toughness, as well as their changes with advancing crystallization were determined. The results show that the changes of the mechanical properties are correlated with the microstructures. The sample heated up to 810℃ and soaked for 4 h has smaller crystalline size and less volum fraction of fluorophlogopite, so it has higher bending strength (about 190 MPa), and higher crack toughness (about 2.63 MPa·m1/2).     

基于Web的绍兴机电网的规划与设计

本文利用WEB技术与数据库技术，对绍兴机电网进行规划与设计，同时对网站设计中关键技术的解决提供了思路。     

Cytological evidence on the ability of the nucleolus organizing regions to assemble pre-existing nucleolar material

Summary The treatment ofVicia faba root tips with 5-azacytidine caused unequal allotment of the chromosomes; after one cell cycle, a pair of daughter nuclei was produced, one of which carried the nucleolus organizing regions (NORs) and the other of which lacked them. The pre-existing nucleolar material brought into the NOR-carrying daughter nucleus by the chromosomes disappeared concurrently with the appearance of the new nucleoli, whereas in another daughter nucleus without the NOR a number of small nucleolus-like bodies became visible at random positions. These findings suggest that in addition to ribosomal RNA synthesis the NOR has another role in cells; to stimulate the pre-existing nucleolar material to assemble at the NOR itself.     

In vivo inhibition by dopamine of 5-hydroxytryptamine-stimulated ovarian maturation in the red swamp crayfish,Procambarus clarkii

In vivo dopamine antagonizes the ovary-stimulating action of 5-hydroxytryptamine in the red swamp crayfish,Procambarus clarkii.     

B-Si及无胺型Fe-Si-ZSM-5沸石合成规律的研究

用几种伯胺及TEA,TMA为模板剂合成了B-Si-ZSM-5沸石。在不使用有机胺等模板剂的前提下,用加入晶种的方法合成了Fe-Si-ZSM-5沸石。讨论了制备上述沸石的水热合成条件,用X射线衍射、红外光谱、热分析、B.E.T.等手段研究了它们的一些物理化学性质。     

Tetanus intoxication causes an increment of serotonin in the central nervous system

Summary Mice injected with tetanus toxin (TTx) showed an increase of 5-hydroxytryptamine (serotonin, 5-HT) levels in the central nervous system. The increment was not uniform thoughout the central nervous system. Particularly significant were the 25% and 80% increases observed, respectively, in whole brain and spinal cord. The levels of dopamine and norepinephrine remained unchanged. The subsequent studies of 5-HT turnover revealed a synthesis rate in the tetanic animals that was almost double that of controls. The degradation rate of the amine as well as the levels of 5-hydroxyindolacetic acid were unaffected.