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The results show that the dehydration efficiency improves with the increase of the amount of butanol during the continuous distillation dehydration process;the first four coordinated water molecules in bischofite can be more easily taken away than the last two coordinated water molecules,especially the last one;the ultrasonic pretreatment of the bischofite bu...

研究结果表明：在连续蒸馏法脱水过程中，水氯镁石的脱水率随着丁醇用量的增加而提高；水氯镁石最初4个结晶水分子较容易脱除，后2个结晶水特别是最后1个结晶水难以脱除。

The dissertation is focused on the research of organic supramolecular self-assembly and molecule folding. It consists of four parts. In the first part, three new model molecules for investigating intramolecular coaggregation behavior have been designed and synthesized. Fluorescence studies reveal that intramolecular coaggregation of these molecules take place with the increase of the solvent polarity because of hydrophobic-lipophilic interaction .

本论文主要对有机超分子自组装和分子折叠做了一些研究，共分四个部分：第一部分中，我们设计并合成了一个新的研究分子内自簇集的模型，用荧光光谱法对该模型进行了研究，研究表明，在促簇能力较强的溶剂体系中，这一类模型分子可在疏水亲脂作用的驱动下发生分子内自簇集而形成卷曲的构象。

Whether it is the molecules of crystallin that are used to build an eye or the haemoglobin that makes blood carry oxygen, the nature of molecules themselves means that evolution is more likely to follow a path determined by their basic structure.

不管是用来造眼睛的晶体球蛋白分子，还是促使血液输送氧气的血红蛋白，分子本身的性质意味着进化更像是跟着一条由他们的基本构造决定的路线在前进。

Both crystallographically unique Zn atoms exit as an octahedral geometry. The four equatorial positions of Zn1 atom are occupied by the carboxylate-oxygen atoms of the two tartrates, and the two oxygens of the left four carboxylate-oxygen atoms coordinate to two different Zn2 atoms, respectively, forming infinite coordination polymer chains. The left two of the trans equatorial positions of Zn2 atom are completed with two oxygen atoms of two water molecules. The axial positions of both Zn atoms are occupied by the nitrogen atoms from different 4,4'-bipyridine molecules to give a 2D rectangular-grid layers with a cavity dimension of 0.51165(3)nm×1.13896(5) nm. A three dimensional network is formed by the crystallization water chains joined by the carboxylate-oxygen atoms through hydrogen-bonding interactions.

两个晶体学独立的Zn原子均为八面体构型，其中Zn1原子赤道配位点被2个酒石酸根中的4个羧酸根氧螯合配位， 2个酒石酸根中剩下的4个羧酸根氧中的2个分别与2个Zn2原子连接形成无限一维链， Zn2原子的另外2个反式赤道配位点被2个水分子氧占据，同时这两种Zn原子的轴向配位点均被4，4'-联吡啶的氮原子占据，形成具有矩形格子[0.51165(3) nm×1.13896(5) nm]的二维层状结构，游离的2个水分子通过氢键作用形成二聚体，并与酒石酸根中未与Zn配位的羧酸氧连接，把二维层状结构连接成三维网状的超分子结构。

Especially in the production of inflammatory molecules:proinfiammatory cytokines,chemokines,degradative enzymes,adhesion molecules and others.

其中以在炎症方面作用最为突出：促炎因子、趋化因子、降解酶类、生长因子、粘附分子以及其它炎症因子的产生都依赖p38通路的调节。

OH radicals produced by ultrasound in aqueous solution attack phenolic cycle at adjacent or para position of the hydroxyl on phenol so that phenol is changed into small organic molecules such as muconic acid, maleic acid and ethane diacid. These small organic molecules will be oxidized to form carbon dioxide and water by.

苯酚超声降解的作用机理是，超声空化在水溶液中产生的·OH自由基进攻苯酚苯环上羟基的邻位或对位而使苯环断裂生成己二烯酸、顺式丁烯二酸和乙二酸小分子有机物而使苯酚得以降解，这些小分子有机物在·OH自由基的进一步作用下最终被氧化成CO〓和H〓O。

In this chapter, A〓 is divinyl sulfone, B〓 organic molecules with two secondary-amino groups, BB'〓 organic molecules with one secondary-amino group and one primary-amino group.

提出了一种由已商品化的A〓、B〓和BB'〓型单体合成高度支化共聚物的新方法，并合成了六种新型高度支化共聚砜胺。

The plasmid DNA bands were detected clearly by agarose-EtBr gel electrophore sis.Two forms of plasmid DNA molecules,namely covalently closed circular DNA mol e-cules and open circular DNA molecules,were observed under electron microscope.

用琼脂糖-溴化乙锭凝胶电泳分析在两株菌的DNA中鉴别出明显的质粒带，用电镜方法在两株菌的DNA制剂中均观察到共价闭合超螺旋和开放型环状两种构型的DNA分子。

NTC method is used to select collision molecules and diffuse reflection model is used for the collision between molecules and body surface. Some cases employ finitely catalyzed method to the disposal of wall boundary, and useful results are obtained.

分子碰撞对的抽样采用非时间计数器法，分子与物面的碰撞则采用了漫反射模型进行处理，部分算例加入了壁面有限催化处理，得到了有意义的结果。

There is synergistic interaction maximum while the mixed ratio of KGM and Guran gum is 60/40,the total polysaccharide concentration 1%, TP 80℃ and salt ionic (Ca2+)concentration 0.1mol/L.Interraction machanism between molecules and molecules of two polysaccharide were investigated by FT-IR .

当总糖浓度为1%，魔芋胶与瓜尔豆胶的共混比例为60/40 ，制备温度为80℃，体系盐离子(Ca2+)浓度为0.1mol/L 时可得到协同相互作用的最大值，从FT-IR 谱图上分析了两种多糖分子间相互作用的机理。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。