性质

In the first part, the prototropic hydroxy-oxo tautomerisms of 2 (1H)- pyridones/2-hydorxypyridines, one of the most important model systems in molecular biology, have been investigated with self-consistent reaction field method based on continuum model. The influence of the nature and position of substituent groups, the existence of intramolecular hydrogen bonding and tautomeric competition between 2-hydroxy and 4-hydroxy on the tautomeric equilibria have also been examined.

第一部分，首先从溶剂敏感的异构化性质入手，用基于连续介质的自洽反应场理论方法对一类重要的生化模型体系—2（1H）-吡啶酮／2-羟基吡啶互变异构体系进行了研究，系统地考察了取代基性质、取代基位置、分子内氢键的形成以及互变异构竞争的存在对异构化平衡的影响。

The logarithm difference values of partition coefficients of the compounds in butyl ether/water and in cyclohexane/water system were used for the measurement of the Lewis acidity, while the logarithm difference values of partition coefficients in trichloromethane/water and in tetrachloromethane/water system were used for the measurement of the Lewis basicity, and they were used successfully to differentiate the relative strength of Lewis acidity and basicity for 59 benzene and its derivates.

以化合物在正丁醚/水和环己烷/水溶剂体系中分配系数的对数差作为酸性指数，以其在氯仿/水和四氯化碳/水溶剂体系分配系数的对数差作为碱性指数，提出了一种新的度量有机物Lewis酸碱性的方法，按此方法成功地区分了59种苯系物Lewis酸碱性的相对强弱；并成功地将上述酸碱性指数引入定量结构—性质/活性相关研究之中，探讨了苯系物的正辛醇/水分配系数、水溶解度和土壤有机碳吸附系数等常见理化性质与其Lewis酸碱性间的相关性并建立了相应的定量模型，发现它们之间存在良好的相关性。

The hydrophobic monomers such as glycidyl octyl dimethylammonium chloride, glycidyl dodecyl dimethylammonium chloride, glycidyl tetradecyl dimethylammonium chloride was applied to the hydrophobic modification of two kinds of sodium cellulose sulfate in isopropyl alcohol under 65℃.The success of synthesis of a kind of novel amphoteric surfactant by FT-IR and NMR. 3. By the measuring surface tension of all kinds of amphoteric polymeric surfactants based on cellulose, the critic micelle concentration was obtained such as 0.4wt%、0.3wt%、0.25wt% and corresponding surface tension was about 30mN/m

通过动态接触角测量仪确定了各种纤维素表面活性剂的表面张力和临界胶束浓度，结果表明该类表面活性剂可与小分子表面活性剂的降低表面张力的能力相媲美，最低可达28.41 mN/m，随着疏水基中碳链的增长，降低表面张力的能力下降，而临界胶束浓度从0.4wt%相应降低0.25wt%；应用环境扫描电镜确定其不同浓度胶束形态，结果表明在较低浓度下形成棒状单分子胶束，随着浓度的升高，单分子胶束逐渐聚集成树枝状胶束，进一步提高浓度，则聚集成网状结构；此外，采用了高级流变仪对其溶液的流变性质进行了研究，结果表明其溶液属于剪切变稀流体，是高分子溶液特有的性质。

High-pressure liquefaction of a sawdust in syngas and hydrogen with tetralin as solvent was performed in an autoclave,and the effects of temperature,reaction time and initial reaction pressure on the sawdust high-pressure liquefaction were studied by testing the distribution and characteristic of liquefaction products.

在小型高压反应釜中以四氢萘为溶剂，氢气和合成气为液化反应气，通过对不同液化条件下所得液化产物的收率及性质分析，考察了不同液化条件(反应温度、反应时间、反应气压力)对锯屑高压液化行为的影响；同时在相同液化条件下，通过液化产物收率和性质的分析，考察了气氛对锯屑高压液化行为的影响，探讨了用合成气代替氢气进行液化的可行性。

The photoelectric property and thermoelectromotive force of CdIn_2O_4 or CIO thin film deposited by way of DC reactive magnetron sputtering process were investigated, as well as the effects of the O_2 concentration in reacting gas and annealing process on the property of CIO films.

研究了直流磁控反应溅射制备三元化合物CdIn2O4薄膜的光电性质和温差电动势，及其反应气体中氧浓度和退火处理对CIO膜性质的影响。

Many kinds of fault tectonics differing in age and dynamic genesis occur in distribution in Northwest China and Central Asia, in long term activity with distinct character. Transcurrent activities of various scales taking place in the twoareas during Cenozic are important to accommodate area intraplate deformation.

中国西北和中亚地区断裂构造发育，不同性质的断裂具有多期活动、及在各时期运动性质不同的特点，它们在新生代时期的发生了规模不等的走滑活动，这对于调节该区域板内变形具有重要意义。

This thesis consists of two parts. In Chapter 1, we synthesized novel polyimides containing 1,2,4-triazole and triphenylamine groups. In Chapter 2, we synthesized polys in which main chain contains triazole group and side chain was carbazole group or triphenylamine group.

本实验共分两部分：第一章以合成含1，2，4-三氮唑和三苯胺结构的聚醯亚胺；第二章以合成三氮唑为主链，侧链分别含有咔唑与三苯胺之聚醚醯亚胺，并探讨其热性质、光学性质及应用。

For the tropist, ordinary individual objects can be conceived as bundles or collections of tropes; and an ordinary object, which is a complex particular, has a certain quality in virtue of having, as a member of the complex, a particular trope, which is that particular character.

对殊质论者来说，日常的个体对象可被设想为殊质的集束『bundle，捆在一起』或聚集『collection，聚在一起』；一个日常对象，是一个复合的殊相，据其所拥有的具体殊质而有特定性质，这个具体的殊质是这个复合物的成员，是具体的性质特征。

She could have understood the meaning of a little stone-cutters yard at Columbia City, carving little pieces of marble for individual use, but when the yards of some huge stone corporation came into view, filled with spur tracks and flat cars, transpierced by docks from the river and traversed overhead by immense trundling cranes of wood and steel, it lost all significance in her little world.

她能理解哥伦比亚城那个小采石场的性质，它是把大理石切割成小块出售给私人。但是当她看到巨大的石料公司的采石场，看到里面纵横交错的铁路专线和平板车，穿入石场的河边码头，和头顶上方的木制钢制大吊车，她就莫明其妙了。她没有见过世面，当然不明白这些东西的性质。

CdWO4 nanowires and BaWO4 nanoparticles with different shapes, such as wire-like, rod-like, and hollow spherical, were prepared in different microemulsion systems using octane as oil, undecylenic acid and/or dodecylamine as surfactants.

测试了不同形貌的BaWO4纳米粒子的光学性质，结果表明BaWO4纳米粒子形貌、大小及结晶状态不同对其光学性质将产生一定影响。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。