二氧化物

Manganese oxides, especially manganese dioxide, are widely used in the field of battery and catalysis. Its quality is vital to battery performance and catalysis activity. Therefore, it is all-important to prepare the active manganese oxides.

锰氧化物尤其是二氧化锰在电池和催化工业中已得到广泛的应用，其品质对电池的性能和催化剂的活性起着决定性的作用，因此合成高活性的锰氧化物显得非常重要。

Guards against the facture and the correlation stipulation based on the air pollution defines, the air pollutant may divide into four big projects, respectively be the gaseity pollutant (including sulfur oxide compound bucket carbon monoxide, nitrogen oxide compound, hydrocarbon, chlorine, gasified hydrogen, fluoride, chlorhydrocarbon and so on), the granular pollutant (including suspended particulate matter, golden bureau coal smoke, black smoke, acid fog, falls dust and so on), two pollutant (refers to pollutant to pass through photochemical reaction in air to have pollution again, including photochemistry fog, photochemistry high oxide compound and so on) and odor matter (including chlorine, hydrogen sulfide, curing methyl, sulfur alcohol type, methyl amines) and so on.

依据空气污染防制法及相关规定所定义，空气污染物可分为四大项目，分别为气状污染物（包括硫氧化物勺一氧化碳、氮氧化物、碳氢化合物、氯气、气化氢、氟化物、氯化烃等）、粒状污染物(包括悬浮微粒、金局煤烟、黑烟、酸雾、落尘等)、二次污染物（指污染物在空气中再经光化学反应而产生之污染，包括光化学雾、光化学性高氧化物等）及恶臭物质(包括氯气、硫化氢、硫化甲基、硫醇类、甲基胺类)等。

In a nonaqueous electrolytic secondary battery according to the invention, hexagonal system lithium containing cobalt composite oxide having a crystallite size in a (110) vector direction of 1000 AA or more and having a halogen compound added thereto by burning at time of synthesis is used as a positive electrode active material.

要約 在本发明的非水性电解二次电池中，六方晶系含锂的钴复合氧化物被用作正极活性材料，所述钴复合氧化物在(110)矢量方向的微晶大小为1000埃或更大，并且具有在合成时通过灼烧加入到其中的卤素化合物。

Objective To study the toxicity of MnCl2 and the protective effect of vitamin C in human neuroblastoma cells in vitro.

目的 研究染锰不同浓度对 SH-SY5Y 细胞总超氧化物歧化酶、锰超氧化物歧化酶活性及丙二醛含量的影响，并观察维生素C对染锰多巴胺能神经细胞的保护作用，探讨锰的神经毒性作用机制及防治措施。

In chapter three, various theories and experience on the dispersion of nano-powders proposed by former researchers were generalized and reviewed. Technical standards and experimental process for determining technological parameters were suggested for the dispersion of nano-scaled metal oxides in aqueous medium according to their surface wettability, surface charge, the dependence of surface charge on pH and the compatibility of surfactants with pH and pH adjusting agents. Based on these suggested standards and experimental method, highly stable and dispersive aqueous suspensoid of nm-ZnO, nm-TiO〓, nm-Co〓O〓 and nm-MnO powders were prepared successfully and surface modification on these nano-powders was also achieved.

本文第三章通过大量的文献调研，归纳总结了前人在纳米粒子分散技术方面的理论和经验，并在此基础上根据纳米氧化物粉体的表面润湿性、表面电性及其与分散介质pH值的关系、表面活性剂及其与pH调节剂的配伍关系设计了纳米氧化物水分散体系的工艺规范以及确定工艺参数的通用实验步骤，成功地制备了纳米氧化锌、纳米二氧化钛、纳米氧化钴和纳米氧化锰的高稳定分散悬浮液并实现了干粉体的表面改性，为纳米材料在氧化锌压敏电阻中的应用创造了第二个前提条件。

Recently, Lacorre and his coworker discovered that La_2Mo_2O_9 as a new type of oxide-ion conductor has higher oxide-ionic conductivity than that of conventional yttria stabilized zirconia. However, up to now, most of the literatures on La_2Mo_2O_9 and doped La_2Mo_2O_9 reported mainly concerned with the characterization of structure and phase transformation, there has been no detailed work with respect to the conduction property on them.

最近，Lacorre等人发现新型氧离子导体钼酸镧(La_2Mo_2O_9)复合氧化物具有比传统的氧化钇稳定的二氧化锆更高的氧离子电导率，但至今有关La_2Mo_2O_9基氧化物的文献侧重于其结构、相变的报道，对其导电性能及其变化规律的研究报道较少。

Three kinds of small molecular copper and zinc superoxide dismutase mimics were synthesized with N, N-bis (benzimidazol-2-ylmethyl) amine (N3), N, N-bis (benzimidazol-2-ylmethyl) methylamine(MN3) and N,N-bis (benzimidazol-2-ylmethyl) benzylamine(BN3) as ligands. The com-plexes were characterized by UV, IR and element analysis and the structures were proposed.

模拟铜一锌超氧化物歧化酶的活性中心，以二(2-苯并咪唑)丙烷为桥、二(2-苯并咪唑亚甲基)胺(N3)、二(2-苯并咪唑亚甲基)甲胺(MN3)及二(2-苯并咪唑亚甲基)苄胺(BN3)为配体合成了3种异双核的小分子模型化合物，并进行了紫外、红外表征及元素分析，推测了可能的结构。

Then the contents of brain tissue water, malonyl diadehyde and the activities of Na+-K+-adenosine triphosphatase (Na+-K+-ATPase), Ca2+-Mg2+-adenosine triphosphatase (Ca2+-Mg2+-ATPase), CuZn-superoxide dismutase and mitochondrial Mn-superoxide dismutase were measured.

测定脑组织含水量、丙二醛含量、钠钾三磷酸腺苷酶(Na~+-K~+-ATPase)、钙镁三磷酸腺苷酶Ca~(++-Mg~-ATPase、铜锌超氧化物歧化酶以及线粒体锰超氧化物歧化酶的活力。

Polyethylene glycol ethers of alkyl alcohols having the general formula CH3(CH2)xCH2(OCH2CH2)nOH wherein x is 8 to 20 (of which ceteareth-20, steareth-20 and steareth-100 are preferred), poloxamer 185, poloxamer 407, N,N-dimethyl dodecylamine N-oxide, and mixtures thereof, are employed to increase follicular delivery and/or follicular residence time of certain water soluble ornithine decarboxylase inhibitors of which 2-2,5-diamino pentanoic acid and its pharmaceutically acceptable salts, hydrates, optical enantiomers and racemic mixture are preferred.

使用通式为CH3(CH2)xCH2(OCH2CH2)nOH的烷基醇的聚乙二醇醚，其中x为8-20(其中鲸蜡硬脂醇醚-20、硬脂醇醚-20和硬脂醇醚-100是优选的)、poloxamer 185、poloxamer 407、N，N-二甲基十二烷胺N-氧化物及其混合物来提高某些水溶性的鸟氨酸脱羧酶抑制剂的毛囊传输和/或毛囊停留时间，优选的抑制剂是2--2，5-二氨基戊酸及其药学上可接受的盐、水合物、光学对映异构体及外消旋混合物。

The effects of solvent type,concentration of the aqueous ammonia on the yields of target compounds were studied. The different results between 2,6-diamino-3,5-dinitropyridine (and 2,6-diamino-3,5-dinitropyridine-1-oxide) and 3-nitropyridien were analyzed.

探讨了溶剂类型、氨水浓度等反应条件对目标化合物产率影响，并讨论了2，6-二氨基-3，5-二硝基吡啶(2，6-二氨基-3，5-二硝基吡啶-1-氧化物)氧化胺化反应结果与3-硝基吡啶不同的原因。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。