产物

749Mg/ml and 0.778u/ml, respectively. 5. Study on the viscosity changes of reaction solution and analysis of enzymatic hydrolysis products by TLC, HPLC showed that ChiB was an endo-type cleavage enzyme. It decreased viscosity of reaction solution, hydrolyzed β-(1, 4) glucosidic bond of chitosan, acted on GlcN-GlcN, GlcN-GlcNAc and/or GlcNAc-GlcN glucosidic bond. It did not act on GlcNAc-GlcNAc glucosidic bond. Hydrolysis products of chitosan were composed of chitotriose, chitotetraose and chitopentose.

通过测定酶解液体系粘度和对酶解产物的TLC、HPLC分析，在国内首次深入地研究并报道了内切、外切壳聚糖酶的酶解作用模式，结果表明：酶ChiB是一种内切酶，以内切方式水解壳聚糖的β-（1，4）糖苷键，即作用于GlcN-GlcN、GlcN-GlcNAc和／或GlcNAc-GlcN糖苷键，不能作用于GlcNAc-GlcNAc糖苷键；酶解终产物以壳三糖、壳四糖、壳五糖为主。

The synthesized PCU was then characterized by infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, small-angle X-ray scattering, and tensile strength measurement. The IR showed that the polymer synthesized by the above two methods both have the polycarbonate-urethane structure and the tensile measurement showed good mechanical performance of the polymer. The DSC and TGA data showed that there is an obvious soft-hard glass transition area, which indicated the existence of the micro-phase separation structure. The extent of the phase separation was affected by the ratio of starting materials, the molecular weight of PCD, and the polymerization method. The decomposition upon heating was observed in two steps. SAXS result showed that the radius (r_2), the distance between domains (d_2), and gyral radius (R_2) of hard segment micro-domain were fairly affected by the starting materials ratio and soft segment content.

IR结果表明两种方法合成的聚合产物均具有聚碳酸酯聚氨酯的结构；拉伸实验表明聚合产物具有良好的力学性能；DSC、TG结果表明，聚合物呈现出较为明显的软硬段玻璃化转变区，表明存在微相分离的结构，相分离的程度受原料配比、软段分子量、聚合方法的影响，其热分解分为明显的两个阶段； SAXS结果表明，聚合物原料配比、软段含量的变化对硬段微区回旋半径R_2，微区间距d_2，微区半径r_2影响不大其值分别为9.5(A|°、29、7.4，但对软段的微区半径及间距影响较大，随着软段含量的增大，软段微区的半径r1和间距d1都增大。

Research results of C atomicity in paraffin hydrocarbons show the linear paraffin hydrocarbons （from Tetradecane to Heptadecane） are almost burned up at lower loads, and some components of the SOF are not directly from fuel, but from lubricant oil or middle polymerization products of fuel.

SOF烷烃碳原子数分布的研究表明，低负荷工况下，燃油中易燃的正十四烷～正十七烷的绝大部分被烧掉，SOF中有些成分不是直接来自燃油，而是来自润滑油或燃油聚合反应的中间产物：高负荷工况下，供油量较多导致一部分正十四烷～正十七烷来不及燃烧就排出机外，SOF中还有些成分则是燃油高温裂解的产物。

In summary,"insanity" is not a pathological or medical fact, but a fact of civilization and culture; it is not a product of nature, but of culture; it is a heterogonous but paradoxical discourse constructed in the evolution of cultural conception.

总之，&疯癫&不是病理学或者医学事实，而是一种文明与文化事实，&疯癫不是自然的产物，而是文化的产物&，是在人的文化观念衍变中构建出来的一套内涵驳杂且呈相互背离状态的话语。

Serotonin (5-HT), its precursors tryptophan and 5-hydroxytryptophan (5-HTP), major metabolites 5-hydroxyindoleacetic acid (5-HIAA); and 3-methoxy-4- hydroxyphenylethylene glycol , homovanillic acid , the respective major metabolites of noradrenaline and dopamine were measured by a method of HPLC.

应用高效液相色谱法测定其中5—羟色胺（5-HT）系列代谢物：色氨酸、5-羟色胺酸（5-HTP）、5-HT、5-羟吲哚乙酸（5-HIAA）；多巴胺的主要代谢产物3-甲氧基-4-羟基苯乙酸；去甲肾上腺素的主要代谢产物3-甲氧基-4-羟基苯乙二醇等。

People always thought oxygen is beneficial hurtless to human body in the past, but from discovery SOD is had cleared exceed oxide after the action of freedom radical, the certain metabolization product that discovers oxygen (O2 ˙ or HO2 ˙, H2O2 and ˙ OH) and the active material of its ramification if fat kind cross oxidation child and single-track condition oxygen (˙ O2) can injure airframe.

过去人们总认为氧对人体是有益无害的，但自发现SOD具有清除超氧化物自由基的作用以后，发现氧的某些代谢产物（O2˙或HO2˙、H2O2与˙OH）以及其衍生物的活性物质如脂类过氧化产物与单线态氧（˙O2）可损伤机体。

The effects on yield and canopy biomass accumulation and distribution after anthesis of later sowing wheat were studied in different fertility levels. The results showed that each above ground organs hydrocarbonate accumulation increased with fertility level rising.

对不同肥力水平下晚播小麦开花后地上器官光合产物积累、运转和对产量影响的研究表明，开花后同一天，各地上器官光合产物的积累量均随肥力水平的提高而增加。

It is preferred that the silicone resin material is a composition containing colloidal silica and a silicone resin that is at least one selected from a partial hydrolysate and full hydrolysate of 4-functional hydrolyzable organosilane.

优选的是，有机硅树脂材料是含有胶态二氧化硅和有机硅树脂的组合物，所述有机硅树脂选自4-官能性可水解的有机硅烷的部分水解产物和全部水解产物中的至少一种。

Based on the deterioration mechanism of corrosive medium, a lot of polymer such as ternary-polymer, adding-felt addition, hydrophobe and polypropylene fiber were added to enhance the performance of anti-corrosion, anti-penetration, conglutination and anti-cracking of original cementious material. The microstrure of cementious material was changed from the simplex hydration product of cement to the superposition structure of the hydrolysate of polymer and the hydration product of cement. A lot of the corrosive ions were prevented from the interior of concrete by this stable structure. The results of tryout indicated that the mending material has the good effect at the corrosion form of corrosive medium.

根据介质腐蚀形式的劣化机理，该文以提高修补材料耐腐蚀性能、抗渗透性能、粘结性能和抗裂性能为出发点，采用添加有机硅改性三元共聚物、增粘剂、孔隙憎水剂等多种聚合物和聚丙烯纤维对原水泥基材料进行改性，使得修补材料的内部微观结构从单纯的水泥水化产物转变成聚合物和水泥水化产物叠合的空间网状结构，这种稳定的结构能有效抵抗各种介质离子的侵蚀，在实际工程上的试用也显示出新修补材料良好的使用效果。

Three major metabolites were identified as 3-OH-HBP,γ-OH-HBP and a hydroxylate on its benzene ring.

确认了芹菜甲素在肝微粒体中三个主要代谢产物及三个次要代谢产物。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。