查询词典 mono

These compounds are of substantial interest both inviewpoints of theory and practical applications, mainlyunder the stimulus to achieve synthetic models either foractive sites of iron-sulfur proteins or for transitionmetal catalysts. This thesis describes the synthesis, structures andconformations of 51 new iron-sulfur cluster complexes,which have been characterized by elemental analysis andstandard spectroscopic methods. In addition, single-crystalX-ray diffraction analyses were performed for 4 representa-tive new compounds. Reactivities of μ-〓 with mono- and di- Grig-nard reagents derived intermediates toward various organicelectrophilic substrates were studied, along with complexa-tion of arynyl-containing iron-sulfur clusters by 〓Thus, several bridged, non-bridged, monomeric, dimeric,homonuclear, heteronuclear iron-sullfur and iron-sulfur co-balt-carbon cluster complexes were synthesized. A novelreaction and convenient route for the synthesis in highyield of tetranuclear iron complexes 〓 containing atetracoordinated sulfur atom was discovered, whereas aplausible mechanism based on experimental results was propo-sed for the formation of the new cluster type.

鉴于有机铁硫原子簇化学在基础理论发展和应用方面的重要意义，因此我们开展了这一课题的研究，并取得以下主要成果： 1、本文共合成了51个新有机铁硫及含钴碳簇基的有机铁硫原子簇配合物，除用元素分析，NMR，IR，MS法表征其结构和构象外，还用X-光衍射技术测得四个代表性配合物的单晶结构和构象； 2、我们业已发现炔基Grignard试剂同〓可形成一种&开环&与&闭环&中间物的平衡混合物，研究该平衡混合物同各种亲电试剂的反应； 3、研究发现了一种可高产率地形成〓含〓四配位硫挛合簇的新化学反应并对此反应提出了—种有趣的反应机理； 4、首次由1，4-二溴丁烷双Grignard试剂与〓制得一种新型铁硫簇双硫阴离子活性中间体，并进而研究了它的亲核反应性能； 5、找到了通过〓的光化学反应来合成簇合物〓-〓的一条有实用价值的新路线。

The yields of hydrazoic acid caused by the radiolysis of mono methylhydrazine and β hydroxyethyl hydrazine are determined by Fourier transform infrared spectroscopy and spectrophtometry.

对肼、甲基肼及β羟基乙基肼进行γ射线辐照实验，分别用红外光谱和比色分析法对它们的辐解产物叠氮酸(HN3)进行定性和定量分析。

Process for the preparation of phosphatidylserine of formula wherein R and R independently represent a saturated, mono-unsaturated or polyunsaturated acyl C10-C30, X=OH or OM where M=alkaline or alkaline earth metal, ammonium, alkylammonium including the transphosphatidylation reaction between phosphatidylcholine of the general formula wherein R and R and X have the above specified meanings, R=CH2-CH2- NH2 o CH2-CH2-N(CH3)3 and Serine in D, L or racemic form catalysed by the phospholipase D enzyme, characterised in that said reaction is carried out in a hydroalcoholic medium containing an aliphatic alcohol and in the presence of bivalent metal oxide.

本发明涉及制备式CH 2 OR 1 CHOR 2 CH 2 O-P-OCH 2 -CH(NH 2 )-COOHX的磷脂酰丝氨酸的方法，其中R 1 和R 2 独立地表示饱和的、单不饱和的和/或多不饱和的酰基C 10 -C 30 ，X＝OH或OM，其中M＝碱或碱土金属、铵、烷基铵，该方法包括通式CH 2 OR 1 CHOR 2 CH 2 O-P-OR 3 X的磷脂酰胆碱其中R 1 和R 2 以及X具有上述特别的含义，R 3 ＝CH 2 -CH 2 -NH 2 或CH 2 -CH 2 -N (CH 3 3 与D、L或外消旋形式的丝氨酸之间的转磷脂酰化反应，该反应是通过磷脂酶D酶催化的，其特征在于所述的反应是在包含脂族醇的含水醇介质中并且在二价金属氧化物的存在下进行的。

Located in Zhongxiang City, Mingxian Tomb is the largest and best-preserved mono-structural imperatorial tomb.

据说当年为防止城基下陷，洪水泛城，在右城脚条石缝中浇灌了糯米浆，因而城墙特别坚固。

Based on theories of geometrical optics and electromagnetic wave promulgation, models of three status of aqueous foams transit by light were set up, and the situations of mono- and double- layer unassimilated, assimilated and electric solid infusible materials were investigated for the changes of orientation, path and energy distribution of ray.

基于试验结果，利用几何光学原理和电磁波传播理论，建立了水基泡沫三种状态下的消光模型，通过理论分析和数值模拟，研究了单层界面无吸收、双层界面无吸收、有吸收和含导电性固体不溶物情况下的光线传播规律，从光线传播方向和能量的变化方面，揭示了水基泡沫消光的机理及其对目标探测和甄别的影响。

Based on theories of geometrical optics and electromagnetic wave promulgation, models of three status of aqueous foams transit by light were set up, and the situations of mono- and double- layer unassimilated, assimilated and electric solid infusible materials were investigated for the changes of orientation, path and energy distribution of ray.

基于试验结果，利用几何光学原理和电磁波传播理论，建立了水基泡沫三种状态(来源：AcfB2d2dC论文网www.abclunwen.com)下的消光模型，通过理论分析和数值模拟，研究了单层界面无吸收、双层界面无吸收、有吸收和含导电性固体不溶物情况下的光线传播规律，从光线传播方向和能量的变化方面，揭示了水基泡沫消光的机理及其对目标探测和甄别的影响。

Meanwhile, we also well lay stress on the research and development for new products, separately cooperate with Shandong Food Fermentation Institute and High-Tech Fine Chemical Institute of Qingdao Chemical Industrial University, to study derivatives of itaconic acid such as itaconic anhydride, mono-methyl itaconate, dimethyl itaconate, and develop and produce them, which will be better service our customers, then do our best to make our company be best quality, best service and largest manufacturer for itaconic acid and its derivatives.

与此同时，我公司非常注重新产品的研究和开发，分别与山东省食品发酵研究院、青岛化工学院高新精细化学研究所进行合作，研究衣康酸衍生物，如衣康酸酐、衣康酸单酯、衣康酸二甲酯等的用途及开发利用，从而更好地服务于客户。力争把公司建成国内最大、质量最好、服务最佳的衣康酸及下游产品的生产厂家。

Meanwhile, we also well lay stress on the research and development for new products, separately cooperate with Shandong Food Fermentation Institute and High-Tech Fine Chemical Institute of Qingdao Chemical Industrial University, to study derivatives of itaconic acid such as itaconic anhydride, mono-methyl itaconate, dimethyl itaconate, and develop and produce them, which will be better service our customers, then do our best to make our company be best quality, best service and largest manufacturer for itaconic acid and its deviratives.

与此同时，我公司非常注重新产品的研究和开发，分别与山东省食品发酵研究院、青岛化工学院高新精细化学研究所进行合作，研究衣康酸衍生物，如衣康酸酐、衣康酸单酯、衣康酸二甲酯等的用途及开发利用，从而更好地服务于客户。力争把公司建成国内最大、质量最好、服务最佳的衣康酸及下游产品的生产厂家。

In comparison with π-conjugated polymers, mono- disperse conjugated oligomers possessing well-defined con- jugation lengths and structural models are characterized by the uniformity, absence of chain defects, and ease of purification and characterization, which make them superior to CPs for systematic investigation of the structure-property relationships.2

为系统的调查结构财产 relationships.2 列出动词的形式变化低聚物是和相比一的驱散的π-conjugated聚合物 CP 具有非常明确反面的具翅轭长度和结构上的模范被完全一致没有使他们变得比 CP 地位高的洗净和对的人物塑造的链条缺点和安逸表示的特点希望对你有帮助，望采纳！

Under the conditions of konjak gum water solution 150 g/L,β-mannanase 50 IU/g konjak gum, hydrolytic temperature 50℃ and hydrolytic time 6 h, the hydrolysate is oligo-saccharides and mono-saccharides analyzed by thin-layer chromatography and HPLC analysis.

酶解的工艺条件为：魔芋胶浓度150g/L，加酶量50IU/g，酶解温度50℃，酶解时间6h。所获酶解产物经薄板层析和HPLC检测，主要为低聚糖以及少量单糖。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新