构

Using the conformational search model of hyperchem, we have searched low energy conformations of α-alanine by the parameter of the dihedral angle.

用Hyperchem软件中的构象搜寻模块，对α-丙氨酸进行系统构象搜索，寻找分子低能构象。

The mean size of inhibitory clusters was 454±400μm, and that of facilitatory clusters was 356±255μm Cortical organization in the domain of integration property was independent of the orientation column and eyedominance column.

抑制型群聚体的平均大小为454±400μm，易化型群聚体的平均大小为356±255μm。整合野类型的皮层筑构与方位筑构和眼优势筑构互相独立。

Methods:38 cases of spastic dysarthria in patients with stroke were accepted speech training.

38例脑卒中痉挛性构音障碍患者，给予针对性构音器官运动功能及言语训练，治疗前后采用中国康复中心制定的构音障碍评价法进行评定，比较其疗效。

All patients were evaluated by dysarthria assessment made by The China Rehabilitation Research Centre before and after treatment.Results: The motor functions of phonatory organ and the ability of speech were improved.

结果：治疗后患者构音器官的运动功能明显改善，口角下垂、嘴唇力量、舌、下颌运动异常及流涎都有不同程度改善（80%~100%）；治疗前29例患者构音处于发单音和单词水平，治疗后仅2例患者构音在单词水平，36患者达句子和文章水平。

After profound systematic theoretical and testing reasearch of metal rubber mechanical property,manufacturing technology,macro-micro constitutive relation and metal rubber spring coupling technique, we present deep intercross wiring manufacturing technology,establish infinitesimal spring constitutive model,non-symmetry elastic hysteresis constitutive model,dissipation factor testing method based on equivalent stress function and key technique methods of metal rubber elastic damping fabrication.

我们针对金属橡胶力学性能、制造工艺、宏观、微观本构关系及金属橡胶制造弹性联轴器关键技术开展了系统深入的理论与实验研究，提出了基于深度交叉钩联编织技术的制造工艺方法、建立了微元弹簧组合的微观本构关系、非对称弹性变形滞迟泛涵宏观本构关系、基于等效应力函数概念的损耗因子测试方法和金属橡胶制造弹性阻尼元件关键技术。

Based on a nonclassical theory of plasticity and the continuum damage mechanics,a damage constitutive equation is obtained for the ferrite phase with the damage evolution law for mixed hardening materials from an ellipsoidal void model under particular coordinates,where the void shape variation is considered.

基于非经典塑性理论和连续介质损伤力学，利用在一个特殊坐标系下基于椭球形孔洞模型得到的可考虑孔洞形状变化混合强化材料的损伤演化率得到了铁素体相的损伤本构方程，通过混合物理论利用铁素体和渗碳体相各自本构关系并考虑其几何特征得到了珠光体团的损伤本构模型。

With the support of National Key Basic Research and Development Scheme, a comprehensive research on segment erector which is used in segment lining for the new surface during shield tunneling is developed.

本文结合国内近年来对盾构开发的迫切需要，在国家重点基础研究发展计划(973计划)的支持下，对盾构掘进设备中用于给盾构开挖后的隧道表面贴上管片的重要部件——管片拼装机进行了详细的分析。

In the case of ethane, then , there exist three conformational isomers or conformers, which are degenerate because they are congruent , have the same energy, and are, in all respects, indistinguishable.

在乙烷的话，那么，我们有三种异构体或构构，这是堕落，因为他们是一致的，具有相同的能量，并在所有方面，没有什么区别。

Methods: A total of 36 New Zealand male rabbits were divided randomly into expanded prefabricated, expender lined and prefabricated groups.

选取成年雄性新西兰白兔36只，随机分为预构扩张组、扩张器衬垫预构组及预构组，每组12只。

On the basis of the kinetic equation of substrate reaction in the presence of urea or guanidine hydrochloride, all microscopic kinetic constants for the free enzyme and enzyme-substrate binary and ternary complexes have been determined. The results of the present studies indicate that:①In the presence of urea or guanidine hydrochloride, enzyme-substrate complexes lose their activity less rapidly than the free enzyme. Therefore, both substrates, NADPH and 7, 8-dihydrofolate, protect dihydrofolate reductase against inactivation.②The denaturation of dihydrofolate reductase by urea follows single-phase kinetics, and changes in enzyme activity and tertiary structure proceed simultaneously in the unfolding process, so it may be an"all or none"process.③The GdnHCl-induced unfolding of the dihydrofolate shows a biphasic transition, while the change in the enzyme activity is a single exponential process. The rate constant of inactivation is consistent with that of the fast conformational change. Therefore, the kinetic intermediate of protein unfolding should be a partially folded and inactive form.

我们根据在脲或盐酸胍存在下的底物反应动力学方程求得游离酶和酶底物二元、三元复合物的微观动力学常数，结果表明：①酶-底物二元、三元复合物的失活速度明显慢于游离酶，说明两个底物二氢叶酸和NADPH对酶的失活都具有一定程度的保护作用；②在脲作用下，酶的失活和构象变化均为单指数项过程，而且酶的活力丧失和三级结构变化是同时发生的，说明二氢叶酸还原酶的脲变性可能是一个"全或无"的两态过程；③在盐酸胍作用下，酶的构象变化为两相过程，而失活则是单指数项过程，酶分子构象变化的快相速度常数与失活速度常数基本一致，因此我们认为二氢叶酸还原酶的盐酸胍变性过程中存在一个没有活力、但仍具备一定空间结构的变性中间体。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。