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It is very difficult to eliminate these influence factors completely by conventional treatment. Surface properties and surface treatment of ultrafine red phosphorus and MMT and their interface properties with polymer matrices were studied in this thesis. The results were characterized by GC, FTIR, XRD, DTA, TG, XPS, UV, SEM, TEM and other physical and chemical methods. The main contents are as following: 1. The study of factors influencing ultrafine red phosphorus's invariability and phosphine liberation indicated red phosphorus undergone oxidation and dismutation reaction in air, and trace ion of iron, copper and nickel fastened water absorption and oxidation, in which the effect of copper ion was the most, while aluminium and zinc ion could slow down red phosphorus'oxidation, and silver ion had the best effect on red phosphorus moisture absorption. Inhibitors such as aluminium hydroxide, magnesium hydroxide, organic phenol and ferrous potassuim cyanide had a good effect on reducing red phosphorus moisture absorption and restraining phosphine liberation.

本文围绕纳微米材料的表面处理及其在高聚物基体中的应用这一主题,系统地研究了超细红磷和蒙脱土两种常见材料的表面特性、表面处理方法及其与高聚物基体的界面特性,通过气相色谱、红外光谱、X射线衍射、差热、热重、X射线光电子能谱仪、紫外光谱、扫描电镜、透射电镜等现代分析仪器以及其它物理、化学方法对实验结果进行了表征和分析,全文主要内容如下: 1、对影响超细红磷安定性的因素以及磷化氢的缓释研究表明:红磷在空气中发生缓慢氧化、歧化反应,微量的铜、铁、镍等金属离子增加了它的吸水和氧化速度,其中铜离子的作用最为明显,而铝、锌等离子减慢了红磷的氧化速度,银离子对减少红磷的吸湿性效果最好。

The dynamic coherence analysis based on multivariate autoregressive modeling was applied in the observation of synchronization between brain areas during cognitive processing.The result indicates that the synchronization of relative brain areas happens automatically despite the distractive stimulus during object perceiving,but the disturbed attention affects the synchronization of those areas involved in the judgement and voluntary movement as the way it affects the reaction time.

基于多变量自回归模型的动态相干性分析方法,被用于观察不同脑区在认知过程中的同步化,结果显示,人在感知和识别物体时,相关的脑区自动地发生了同步化的神经活动,这种同步化被证实是不受干扰刺激影响的,但被干扰的注意力确实影响了与判断和主动运动有关的脑区的同步化,而且这种影响的趋势与反应时间的分析结果一致。

Based on the reaction of OH and NCO group, double alkene monomerscontaining N element were prepared in situ, and a new kind optical plastics withhigher surface hardness, good heat-resistance was easily obtained.

利用OH和NCO的加成反应,在位合成了含N的双烯单体,方便地制备了一类表面硬度高、耐热性好的新型光学塑料。

Late introduction of potatoes, rye, meat, and fish was significantly associated with sensitization to any inhalant allergen.

延缓引进马铃薯、黑麦、肉类及鱼类,都显著地与对任何吸入性过敏原产生敏感化反应有关。

Therefore, CRP could mediate E-LDL participating in the early stage of atherogenesis. CRP is an ancient conserved protein whose initial role as a pattern recognition molecule may have been to defend against bacterial infections, but whose present biological role appears quite complex. CRP is protective against a variety of bacterial infections and inflammatory stimuli as an opsonin. It is likely that the activity of CRP in humans is either pro- or anti-inflammatory is dependent on the context in which it is acting.

由于CRP的识别相可以结合被暴露出磷酸胆碱结构的E-LDL,形成E-LDL/CRP复合体,而内皮细胞表面能以高亲和力识别CRP的配体相,从而CRP-相性结构具有结合E-LDL,被内皮细胞捕获,引起脂质沉积和激活补体、触发炎症反应的可能性,这样可以解释早期动脉粥样硬化为何同时存在E-LDL、CRP、补体,而这三种物质在同时、同地出现绝非一个巧合。

The key steps involved Friedel-Crafts reaction of o-cresol and the Wittig reaction for construction the skeleton of amine moiety,at the same time, using the synthesis of E,(7S)-7-methoxytetradec-4-enoic acid in chapter 2,and Johnson-Clainsen rearrangement as a key step for construction the fatty acid part,the corresponding acid was prepared in 23%and 50%overall yield,respectively.

随后将手性不饱和脂肪酸和氨片段进行酰胺化反应构筑了malyngamide M的基本骨架,再将Z-烯氯转化为E-烯氯完成了目标分子的全合成,高立体选择性地构筑了末端烯氯结构,为制备其它含有类似烯氯结构的malyngamides探索出行之有效的合成路线。

Because of their strong nucleophility of NHCs, the asymmetric Staudinger reaction between ketenes and imines catalyzed by chiral NHC was achieved, gave -lactams with excellent enantioselectivities.

中文摘要我们组利用氮杂环卡宾的亲核性,成功地实现了氮杂环卡宾催化的烯酮与亚胺的Staudinger反应。

The theoretical analysis are verified by numerical simulations.Chapter 3 mainly considers a class of predator-prey model with sublinear functional response function. We deduce some sufficient conditions ensuring stability of equilibrium, nonexistence , existence as well as uniqueness of the limit cycle around the positive equilibrium.

第3章研究了一类食饵为线性密度制约,功能反应函数为次线性函数的食饵-捕食者模型,完整地对模型的平衡点的全局稳定性和极限环的存在惟一性进行了定性分析,得到了该系统不存在闭轨线,正平衡点全局稳定和存在惟一稳定的极限环的充分条件。

And I confess that if all that I knew of Reverend Wright were the snippets of those sermons that have run in an endless loop on the television and You Tube, or if Trinity United Church of Christ conformed to the caricatures being peddled by some commentators, there is no doubt that I would react in much the same way.

坦率地说,假设我对赖特牧师的了解完全来自电视和You Tube反复播放的那些布道录像,或者假设"三一联合基督教会"(Trinity United Church of Christ)的实际情况完全符合某些评论员喋喋不休的讽刺性描述,毫无疑问我也会有差不多类似的反应。

And I confess that if all that I knew of Reverend Wright were the snippets of those sermons that h*e run in an endless loop on the television and You Tube, or if Trinity United Church of Christ conformed to the caricatures being peddled by some commentators, there is no doubt that I would react in much the same way.

坦率地说,假设我对赖特牧师的了解完全来自电视和You Tube反复播放的那些布道录像,或者假设"三一联合基督教会"(Trinity United Church of Christ)的实际情况完全符合某些评论员喋喋不休的讽刺性描述,毫无疑问我也会有差不多类似的反应。

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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?