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These dendritic NOBIN derived Schiff base ligands have been applied to titanium catalyzed hetero-Diels-Alder reaction of Danishefshy's diene and aldehydes, affording the corresponding 2-substituted 2, 3-dihydro-4H-pyran-4-one in quantitative yields and excellent enantioselectivities (up to 97. 2%ee). Comparing the reactivities and enantioselectivities of reaction catalyzed by the titanium complexes of these Schiff base ligands, it was found that a series of ligands L〓 were superior to the other three series of ligands L〓, L〓 and L〓, a significant positive NLE and a dendrimer effect existed in the L〓 dendritic catalyst system. The disposition of the dendritic wedges and the dendron size in the ligands were observed to have a significant impact on the enantioselectivity of the reaction.

NOBIN衍生的树枝状大分子希夫碱手性配体与钛形成的配合物在催化不对称杂Diels-Alder反应中的应用将得到的四个系列NOBIN衍生的树枝状希夫碱三齿手性配体与四异丙氧基钛形成的配合物用于催化Danishefsky's diene与醛的不对称杂Diels-Alder反应，通过反应条件的优化，获得了定量的收率和最高达97.2％ee值的对映选择性；考察了这四个系列NOBIN衍生的树枝状希夫碱钛配合物的催化活性和对映选择性，结果发现它们的活性次序依次为L〓≈L〓＞L〓＞L〓，对映选择性次序依次为L〓＞L〓＞L〓＞L〓。

And this strain degraded H〓S without lag time. The heterotrophic bacteria's generation period was short and its growth was rapid. The result of experiment indicated when the strain Hm-6 was applying to the packed tower, the startup was more quickly and the control was more convenient than the autotrophic bacterium. Applying to deodorize the H〓S, the better removalability could be got. At the same time, comparing with the system used at home of which the biofilm directly formed with activated sludge, it runs in the neutral condition, has lower corrusivity to the equipment and was liable to handle. And this system didn't need the acclimation to become biofilm, so it can save a rather long acclimation time.

异养菌虽然不以硫化物作为能源物质，但其世代周期短、生长迅速，运行管理比自养菌更为方便，具有周期短，启动迅速等优点，接种了菌株Hm-6泥炭生物填料塔，对低浓度H〓S有较高的去除效果，且没有延迟期，与国内通常采用的直接以活性污泥挂膜的方式相比，应用该菌的脱臭系统在中性条件下运行，对设备的腐蚀性较低、运行过程较易控制，具有很好的应用前景。

These products generally contain much less oxygen comparing with the lignocellulosic crude material. As such, microbial bioconversion is chosen as our approach to achieve deoxygenation of lignocellulose at the expense of part of the biomass per se.

根据木质纤维素类生物质氧元素含量高的固有特点，我们认为生物质转化的化学本质是脱氧，进而选择以微生物生物转化技术为核心手段。

As the pyrolysis technology for MSW, comparing with incineration, has a higher WTE and lower second-step pollution, it has been considered a more advantages MSW deposal technology than incineration. However, it is only in its preliminary step. Till now, there is quite limit successful practical pyrolysis technology applying on MSW and deficient of relative fundamental research on them. So to do some fundamental research about this is both very important and very necessary.

由于固体废弃物热解技术具有比焚烧法更高的能源利用率和较低的二次污染，因此被认为是比焚烧技术更先进的废弃物处理技术，当然，固体废弃物热解技术发展目前还处在起步阶段，迄今为止，已成功应用于处理城市固体废弃物的热解技术还非常有限，与之相关的很多基础研究还很缺乏，因此对固体废弃物热解技术的有关基础研究是十分重要和必要的。

Comparing the changes of coast line, water depth contour line and deltaic flat slope in different period maps, we got the feature of deltaic flat changes.

对不同时期地形图的岸线、等深线、坡度变化的对比分析，得出不同岸段的变化特征。

Objective To provide scientific data for deratization by comparing the control effect of coumatetraly,brodifacoum and sodium diphacinone in the laboratory and the field.

目的 比较杀鼠迷、溴鼠灵和敌鼠钠盐3种毒饵实验室及现场灭鼠效果，为今后灭鼠工作提供科学依据。

Comparing the results with those of tests, the correctness of the derived equation was shown.

经与试验测得位移相对比，证明该方程的正确性。

Beside this ,the paper also give a description of Preprocessing module, Block Division module, Identifying module, Drawing Uniform module, Graphics Comparing module and Displaying module.

同时按系统的工作流程介绍了图形的预处理、区域划分、视图识别、视图的规范化、视图的比较和显示模块。

Comparing the experience results, the threshold of the system performance is determined.

通过实验结果的对比，找到该通用模拟方法的性能的临界点。

Comparing with the traditional deterministic optimization results,reliability optimization results meet the established design objectives better,and increase the reliabilities of the design restraints significantly.

与传统的确定性优化结果相比较，可靠性优化结果不仅较好地满足了乘员约束系统的设计目标，而且大幅度地提高了系统设计约束的可靠性。

I think people in this lifetime in a rebirth.

我觉得人在这一生里其实也在轮回。

He had to tie her hands together.

他不得不把她的双手绑在一起。