和硫

The study of the effect of DMSP (dimethylsulfoniopropionate, or dimethyl-beta-propiothetin, DMPT) in the production of acid rain and in the promotion of aquacultural animals nutrition is one of the focus fields in both environmental science and aquaculture.

一种二甲基硫化合物硫代甜菜碱成为环境科学和水产科学共同关注的热点之一。

Two kinds of ashless and non-phosphorus additives, hydroxyl-containing dithiocarbamate derivatives were prepared.

合成了2-乙羟基-吗啡啉二硫代氨基甲酸酯和2-乙羟基-二正丁胺基二硫代氨基甲酸酯两种添加剂。

Oxidative coupling ,and synergistic combination with ashless thiocarbamate,zinc thiocarbamate,sulfur and phosphorusfree molybdate,non-active organic borate and organic alkali metal salt.

文章介绍了几种提高胺类抗氧剂抗氧化能力行之有效的方法：氧化偶合以及与硫代氨基甲酸酯、硫代氨基甲酸锌、非活性钼酸酯、非活性硼酸酯和碱金属盐添加剂协同。

Firing belite sulphoaluminate cement with dusulphurize ash displacing gypsum and part of limestone was studied in this article.

刘辉敏，利用脱硫灰烧制贝利特-硫铝酸盐水泥研究了脱硫灰替代石膏和部分石灰石烧制贝利特-硫铝酸盐水泥。

By way of f-CaO chemical analysis and thermal analysis, the article studied the influence of K_2O on the mineral of C_2S or C_4A_3 which chiefly formed a cement of high silicon belite sulphur aluminate cement .

目的为研究K2O对高硅贝利特硫铝酸盐水泥主要矿物C2S和C4A3 S的影响，为含有钾的低品位矿物原料生产高硅贝利特硫铝酸盐水泥奠定了基础。

This paper mainly discussed the hydration mechanism of calcium barium sulphoaluminate mineral, belite cement and belite-calcium barium sulphoaluminate cement.

阐述硫铝酸钡钙矿物、贝利特水泥和贝利特－硫铝酸钡钙水泥的水化机制。

This thesis includes five parts as follows.1. The backgrounds and some relative concepts of this work are briefly introduced. The photochemistry of benzamides and compounds with thiourea functional group is also concisely reviewed.2. Total of fourteen benzamides with different substituted groups have been synthesized and structurally characterized. Better photoreaction time for that kind of compounds at given concentrations is confirmed by tracking its'UV spectrum and GC chromatogram. A representative dibenzophenone photoproduct has been determined by X-ray crystallography. The mechanisms of photoreaction of benzamide have been proposed.3. Total of seven N-chloro(phenylmethylenebenzenamines with different substituted groups and sixty-one thiourea derivatives have been synthesized and structurally characterized.

论文的主要内容如下：1、简要介绍本论文工作的研究背景，并对苯甲酰胺和具有硫脲官能团类化合物的光化学研究进展进行简要的总结。2、合成与表征了14个具有不同取代基的苯甲酰胺类化合物，利用紫外光谱和气相色谱确定了此类化合物较佳光照时间，测定了一个具有代表性光解产物的单晶结构，提出了苯甲酰胺类化合物的光反应机理。3、合成与表征了7个带有不同取代基的氯代苯甲酰亚胺中间体及61个硫脲衍生物，测定了两个具有代表性化合物的单晶结构。

In this thesis, two series compounds of thiadiazole (2a~2f) and benzothiazole (5a~5f) were synthesized by using the reagent of iodobenzene diacetate. We also bound the iodobenzene diacetate reagent to the resin and applied it to synthesize thiadiazole and benzothiazole compounds.

本文利用二醋酸碘苯试剂分别与1-芳甲酰基-5-芳基-2-硫代缩二脲及1-芳甲酰基-3-芳基硫脲反应合成了噻二唑(2a~2f)和苯并噻唑(5a~5i)两个系列的杂环衍生物，并通过把二醋酸碘苯负载在高分子上合成了一类新型的固相氧化剂，同时考查了该固相氧化剂在噻二唑，苯并噻唑类化合物合成中的应用以及该固相氧化剂的循环使用。

Two benzothiazole ester compounds containing boron with different alkyl chain, Di-n-hexyl-[2-(2-benzothiazolylthio)] ethyl boric acid ester (BNS-1) and Dicyclohexyl-[2-(2-benzothiazolylthio)] ethyl boric acid ester(BNS-2), were synthesized and their tribological performance as additives in rapeseed oilwas investigated using a four-ball testing machine.

合成了两种含不同烷基链的含硼苯并噻唑酯类化合物，即二正己氧基-2-[(2-苯并噻唑基)硫代]乙氧基甲硼烷(BNS-1)和二环己氧基-2-[(2-苯并噻唑基)硫代]乙氧基甲硼烷(BNS-2)。

By means of covalent coupling with the activation of 1-ethyl-3-(3-dimethyllaminopropyl) carbodiimide hydrochloride and N-hydroxysulfosuccinimide.

利用自组装技术将三巯基丙酸固定在金电极上，以1-乙基-3-（3-二甲氨基）碳二亚胺盐酸盐和N-羟基硫代琥珀亚胺作为活化剂，将甲基对硫磷抗体以共价键形式固定在三巯基丙酸自组装单分子膜修饰的金电极上，制备了一种免疫传感器。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。