硫

Sodium thiosulfate and carbon disulfide were used as sulfur sources in water and absolute alcohol systems, respectively.

在水溶液体系和乙醇溶液体系中，于常温常压下不加入任何催化剂，用γ射线辐照技术可以成功制备出纳米ZnS晶体，其中硫代硫酸钠和二硫化碳分别为上述两体系的硫源。

In this paper, the inhibition of growth by organic compounds, limited use of organic compounds, central metabolic pathways, and transport mechanism of the extremely acidophilic obligately chemolithoautotrophic thiobacilli are reviewed, as well as the current research progress in their genetic modification to use organic compounds.

主要对极端嗜酸性专性化能自养硫细菌有机质代谢的研究进展进行了综述，其中包括有机化合物的抑制作用、有机化合物的有限利用、中心代谢途径及物质的转运等，还包括专性化能自养硫细菌有机质代谢遗传改造研究的最新进展。

The electrochemical device using the sulfonate-based compound containing a cyano group, an isocyanate group, a thiocyanate group and/or an isothiocyanate group as an additive for electrolytes can provide significantly improved high-temperature lifespan characteristics.

所述电化学装置使用含有氰基、异氰酸酯基、硫氰酸酯基和/或异硫氰酸酯基的磺酸酯基化合物作为电解质用添加物，因而能够提供明显改善的高温寿命特性。

The invention relates to a method for the extraction of keratin from dead animal skins, characterised in the treatment of dead animal skins with a substance of general formula, or at least one corresponding alkali metal, earth alkali metal, ammonium, or phosphonium salt, the variables having the following definitions: R, R = together or independently, H, C6-C14 aryl, C1-C12 alkyl, unsubstituted or substituted with one or several SH or OH groups, R, R = together or independently, H, C6-C14 aryl, C1-C12 alkyl, unsubstituted or substituted with one or several SH or OH groups, whereby at least one of R or R is not H, or R and R are not H and two vicinal groups of R to R together may be C3-C10 alkylene, R = H, C1-C12 alkyl, H-C=O or C1-C4-Alkyl-C=O, X, X, X and X = OH, SH or NHR, whereby where Rto R contains at least one sulphur atom, at least one of X to X = SH and where R to R contains no sulphur atom, at least two of X to X= SH.

本发明涉及一种从死亡动物原皮中除去角质的方法，其特征在于用通式I的物质或至少一种对应的碱金属盐、碱土金属盐、铵盐或∴盐处理死亡动物原皮，式I中各变量定义如下：R 1 和R 4 相同或不同且选自氢、C 6 -C 14 芳基和C 1 -C 12 烷基，其未被取代或被一个或多个SH或OH基团取代；R 2 和R 3 相同或不同且选自氢、C 6 -C 14 芳基和C 1 -C 12 烷基，其未被取代或被一个或多个SH或OH基团取代，其中至少一个基团R 2 或R 3 不为氢，或R 1 和R 4 不为氢，且两个相邻基团R 1 -R 4 可以一起为C 3 -C 10 亚烷基；R 5 选自氢、C 1 -C 12 烷基、H-C＝O或C 1 -C 4 烷基-C＝O；X 1 、X 2 、X 3 和X 4 选自OH、SH和NHR 5 ，其中若R 1 -R 4 含有至少一个硫原子，则至少一个基团X 1 -X 4 为SH，以及若R 1 -R 4 不含硫原子，则至少两个基团X 1 -X 4 为SH。

It is vapour, coal, diesel oil made to the crude oil high in sulphur content, produce stench because of including sulphur alcohol, will cause the oil to grow the colloid when the alcohol content of sulphur is

是针对含硫高的原油制成的汽，煤，柴油，因含硫醇而产生恶臭，硫醇含量高时会引起油品生胶质，不易保存。可采用催化剂存在下，先用碱液处理，再用空气氧化。

The materials are gold mine of low sulfur content, calcine or gold contain abatement. Cyanogens lixiviant is alkaline thiourea, stabilizer is sodium sulphite or sodium silicate, they constitute high stability alkaline thiourea system, and bland oxidizing agent is potassium ferricyanide with moderate electric potential during sunking process.

本发明以低硫含量的金矿、焙砂或含金废料为原料，以碱性硫脲为无毒的代氰浸出剂，以亚硫酸钠或硅酸钠为稳定剂，组成高稳定性碱性硫脲体系，浸出过程中以具有适中电势的铁氰化钾为温和氧化剂。

The average contents of available sulfur in soil and sulfur in tobacco leaf from tobacco-rice continuous cropping pattern were 39.06 mg/kg and 0.968%,and 30.42 mg/kg and 0.704%for single cropping in dry land respectively.

烟叶硫含量仅有30%在0.20～0.70%正常范围内，70%烟叶硫含量超标，尤其是浏阳和宁乡植烟区的烟叶硫含量超过了1.00%。

To attaining longlived charge separated states, the new compounds 7 and 8 of C60-S-2-thioxo-1, 3-dithioles derivatives were synthesized by Diels-Alder cycloaddition reaction. The structures generated by AM1 were used as the initial configurations for the density functional optimization at the B3LYP/3-21G level for all carbon and sulfur clusters, and some geometry conformation indexes were obtained. We found that C60 has been half-packed by the curved 2-thioxo-1, 3-dithioles derivatives.

为了获得具有长寿命电荷分离态的[60]富勒烯－富硫衍生物有机功能分子，我们设计了用单键硫桥键联[60]富勒烯和硫酮衍生物的分子7和8，用半经验AM1方法得出最低能量的几何结构，在此基础上用密度泛函 B3LYP/3-21G方法，对其进行计算，得出电子相关的优化参数，预测其稳定性。

The attack causes the cleavage of P-S double bonds, then the decomposition products reacting with the surface of Fe metal lead to the formation of the anti-wear and anti-friction film largely composed of polyphosphates and sulphides.

计算表明二烷基二硫代磷酸锌的活性元素为6位和7位硫原子，其与铁发生摩擦化学反应时，最可能的断键位置是6位和7位硫原子的双键。

The isolated cells are able to orient and migrate to the magnet in artificial magnetic field but could not orient swimming only under the geomagnetic field. Magnetosomes produced by Acidithiobacillus ferrooxidans were range from 40nm to 90 nm according to the results of TEM. Energy dispersive X-ray analysis indicated that extracted magnetic particles consisted of oxygen and iron. The results show that some Acidithiobacillus ferrooxidans cells have weak magnetotaxis and they could be able to be separated by solid-plate magnetophoresis method from others. With the development of this new isolation method, it is possible that we could do deeper research to generate a comprehensive description of the mechanism that how Acidithiobacillus ferrooxidans synthesize the magnetic particles.

实验结果表明，氧化亚铁硫杆菌具有较弱的趋磁性，在人工磁场下会进行趋磁运动，但仅在地磁场作用下不能定向运动，利用固体平板磁泳筛选纯化含有磁性颗粒的氧化亚铁硫杆菌的方法是切实可行的，磁泳分离技术的进一步完善和改进为传统的微生物菌种分离提供了新的途径，为研究纯氧化亚铁硫杆菌菌株胞内磁性颗粒的形成条件及机理提供了前提条件，也为今后从浸矿细菌中分离筛选更多的含有磁性颗粒的菌株打下基础。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。