查询词典 molecular force

The force is dominated by entropy force when the chain isdeformed less than 0.9 of the full-extended chain, while by enthalpy force. Theenthalpy force is contributed by the intro-molecular interaction. Bond stretchcontributes to the force more than bond angle bend. Torsion and VDW contributelittle to the force.3. The internal energy contribution to the elastic force It is in dispute that whether 〓 is dependent on the strain, and it is hard toresolve the problem using present elastic theories because they are athermal.

我们模拟了聚乙烯模型聚合物的SMFS，研究了链长、势能有效距离和温度对力谱的影响，探讨了力谱的本质问题，得到以下结果：改进的分子动力学方法可以很好的模拟聚合物的SMFS；SMFS是链段的性质而不是整个高分子链的性质，对于聚乙烯，该链段碳原子数目大于40；SMFS的本质是熵弹性，形变小于全伸直链的0.9时，力为熵弹力；形变超过全伸直链的0.9时，能弹力占主导地位，这种能弹力完全是分子内相互作用引起的，是由键伸缩和键角弯曲贡献的。3。

As the secondary generation host, CD have received considerable attention because of its particular characterization, and the studies on host-guest interaction based on CD had been transferred from the processes and mechanism of inclusion complex between a pair of host and guest to construction of functional supramolecular aggregates, then these will be useful in the design and preparation of molecular machine and molecular devices, such as molecular pinchers, molecular gears, molecular motors and molecular balances, etc.

它的发展也先后经历了冠醚、环糊精、杯芳烃三代主要的主体化合物，环糊精作为超分子化学的第二代主体化合物以其独特的性质而倍受关注，基于环糊精的主-客体相互作用也在研究单一主体与客体包结形成过程及形成机理的基础上，进而追求具有特定功能的超分子聚集体，为设计制备分子钳、分子齿轮、分子马达、分子秤等重要分子器件和分子机器奠定基础。

Therefore, the EL spectra of (Znq_2)_4 is wider than that of Znq_2. 4._2 was synthesized. The analysis of molecular spatial structure and the characterization of material performance of_2 and Liq showed that two Liq molecules and two Naq molecules were connected by Na-O-Na bond bridges to form_2. Compared with Liq,_2 exhibits stronger rigidity in planar molecular structure, larger steric hindrance and intermolecular distance, and much smaller molecular polarity, thus resulting in much longer fluorescence lifetime, much higher fluorescence quantum efficiency, wider energy bandgap and better film formability. When used as light-emitting layer in OLED,_2 shows lower formation probability of excited dimmer and exciplex formation than Liq, thus emits bluer light with higher current efficiency than Liq. When_2 ultrathin film is used as electron injection layer in OLED, it exhibits higher current density, higher luminance, lower turn-on voltage and higher current efficiency than Liq ultrathin film for the existence of sodium ions in_2 ultrathin film. 5. The summarization the relationship between molecular spatial structure and material performance of Alq_3,(Znq_2) and Liq, lead the conclusion that the molecular spatial structure of Mq_n affects its material performance in such aspects as the rigidity of planar molecular structure, intermolecular interaction, molecule stacking mode and intermolecular distance.

制备了_2，通过对_2和Liq的分子空间结构与性能进行分析与讨论，发现_2是通过两个Na-O-Na键桥将两个Liq和两个Naq连接构成的，其分子平面结构的刚性程度强于Liq，空间位阻大于Liq，分子之间的距离大于Liq，分子极性远远小于Liq；_2的荧光寿命长于Liq，荧光量子效率高于Liq，成膜性优于Liq；_2的禁带宽度比Liq大，光致发光光谱中_2的最大发射峰较Liq发生蓝移；当_2在OLED中作为发光层时，激发二聚体与激基复合物的生成几率远远小于Liq，发的光比Liq更蓝，电流效率大于Liq；_2超薄膜中有Na离子的存在，与Liq超薄膜相比，当其在OLED中作为电子注入层时，具有更大的电流密度，更高的发光强度，更低的阈值电压和更高的电流效率 5、对上述Alq_3、Znq_2和Liq的分子空间结构与材料性能之间的关系进行了归纳总结，认为Mq_n的分子空间结构主要在分子平面结构的刚性程度，相邻分子之间的相互作用，分子堆叠的方式和分子之间的距离这四个方面影响其性能。

So say American film society to sue fast thunder can additional purposeful, these year western country always censures China in intellectual property domain, because,force of fire of before a few years of Zhuhai is sued by SIGMATEL of provider of American MP3 chip also is intellectual property, the swift and violent development that real reason is Zhuhai fire force truly has browbeaten SIGMATEL, the intellectual property case that SIGMATEL prosecutes Zhuhai fire force also is absent MP3, and in domain of power source power comsumption, allegedly the period of time of to lodge a complaint, the client of force of many Zhuhai fire converts SIGMATEL, because,very simple everybody does not consider the matter the lawsuit ask for trouble of Zhuhai fire force, this just also is the real reason that SIGMATEL sues Zhuhai fire force, do sth over and over again prosecution of two years is Zhuhai fire force as a result eventually most reconcile in both sides of Shenzhen countercharge SIGMATEL, the judgement that the market share of force of final Zhuhai fire exceeds SIGMATEL to became the MP3 chip provider with the greatest whole world to also prove SIGMATEL is original and be anxious.

这么说来美国电影协会起诉迅雷只能另有目的，这些年西方国家总是在知识产权领域指责中国，前几年珠海炬力被美国MP3芯片提供商SIGMATEL起诉也是因为知识产权，真正的原因确是珠海炬力的迅猛发展已经威胁到SIGMATEL，SIGMATEL起诉珠海炬力的知识产权案也不在MP3，而在电源功耗领域，据说提起诉讼的一段时间，大量珠海炬力的客户都转投SIGMATEL，原因很简单大家都不想因为珠海炬力的官司惹火上身，这也才是SIGMATEL起诉珠海炬力的真正原因，折腾了两年的起诉最终结果是珠海炬力在深圳反诉SIGMATEL双方和解，最后珠海炬力的市场份额超过SIGMATEL成为全球最大的MP3芯片提供商也证实了SIGMATEL最初的判定和担忧。

The paper consists of following contents:(1)starting with a historicalreview of the use-of-force,this paper reveals a paradoxical evolvementof the two trends in use-of-force,compares the absolutization andinfinity with controllability and finity of the use-of-force,and clarifiesnew characteristics of the use-of-force in post-Cold War era;(2)bysystematically analyzing the era background from the viewpoints ofeconomic globalization,political multipole,military high tech,national separatism and the hegemonism,the paper clarifies factorslimiting and stimulating the use-of-force;(3)by analyzing the lawbackground mainly from the viewpoint of international laws,the paperespecially centralizes the discussion on restrictions made by moderninternational laws on the use-of-force and their limits,dissects thechallenges brought up by the high tech war to international laws;(4)the use-of-force by UN and other regional international organization;(5)refuting the theory of"humanitarian intervention"advocated bythe USA and certain western countries,the paper expatiates the rightrelations between human rights and sovereignty,and demonstrates therightness of the sovereignties and UN;(6)the basic guidelines of theuse-of-force in the post-Cold War era.

分别从经济全球化、政治多极化、军事高技术化以及民族分离主义的泛滥、霸权主义的恶性膨胀等方面系统分析冷战后武力使用的时代背景，揭示出冷战后时代同时存在的限制、约束武力使用的因素，以及诱发、刺激武力使用的因素。（3）主要从国际法的角度分析武力使用的法律背景，着重探讨现代国际法对武力使用的规范和制约作用以及这种作用的有限性，同时剖析现代高技术战争对国际法提出的挑战。（4）主要探讨联合国以及区域性国际组织在冷战后使用武力的实践以及存在的问题。（5）驳斥以美国为首的某些西方国家所鼓吹的&人道主义干涉&论，阐述人权与主权的正确关系，论证主权国家和联合国并没有过时，不能用非人道手段解决人道主义问题。（6）系统提出了冷战后国家间使用武力应遵守的基本准则。

We want to move up ticklish Stone, the facilities of the moment will be greater than the force of gravity produced by a rock moment, we all know that the moment arm of force multiplied by the force equal to the size of the arm of force as an arm of force in the greater 2 , Finger pressure, the more gravity than, stone ticklish ticklish point of this very long arm of force, so we used a very small force so that the stones will be able to move up.

我们要想让怕痒石动起来，所施的力的力矩就要大于石头重力所产生的力矩，我们都知道力矩等于力臂乘以力的大小，当力臂2越大于力臂1时，手指压力也就越小于重力，怕痒石怕痒的这个点的力臂非常长，所以我们用很小的力就能使石头动起来。

In this thesis,based on the DFT+NEGF first-principles method,we construct a lead-molecule-lead sandwich system with single benzene-based molecule to investigate the relationship between the structure and properties of the molecular devices and the factors that influence properties of the molecular devices.Our computational investigations on these molecular devices are primarily concentrated on the effect of contact geometry between molecules and electrodes,the effect of side groups,the effect of different torsion angle between two phenyl rings and the effect of external electric field.This thesis consists of five chapters:In Chapter one,we mainly introduce the research background and development of the molecular electronics,including the experimental fabrication of molecular electronic components and theoretical simulation methods.Afterwards we discuss the questions that need to be solved in this area.Finally,the main contents of this thesis are listed.In Chapter two,we introduce the theoretical methods used in this thesis, including the main first-principles calculation methods,i.e.,the Density-Functionmethod and nonequilibrium Green\'s function.

本论文拟采用密度泛函理论和非平衡格林函数相结合的第一性原理计算方法，选取苯基小分子作为研究对象，构建了金属电极/有机小分子/金属电极三明治结构体系，系统地研究了苯基分子器件结构的改变与分子电输运性质之间的关系以及影响分子器件电输运性质的相关因素，其中重点研究了分子与电极间可能的接触结构改变、官能团、分子间的扭转角以及外电场对苯基分子电输运性质的影响，本论文主要包括以下五个章节的内容：第一章为综述部分，主要介绍了分子电子学产生的背景、分子器件的研究意义、当前研究分子器件的实验和主要理论方法，以及目前在研究分子器件中存在的一些问题，最后给出了本论文的主要研究内容和技术路线。

The major contents contained genomics of medical and industrial important microbes; molecular technology used in uncultivable microbes; virus molecular genetics; Streptomyces molecular genetics; filament fungal molecular genetics; yeast molecular genetics and microbial breeding.

本课程主要讲解医学微生物及工业微生物代表菌株的基因组学；难培养微生物的分子生物学研究技术；病毒分子遗传学；链霉菌分子遗传学；丝状真菌分子遗传学；酵母分子遗传学及微生物育种等内容。

In this dissertation, the efforts were focused on design and synthesis of chiral tmsymmetrical urea, cholic acid and heteroaromatic molecular tweezers and their molecular recognition as well as enantioselective recognition. A series of useful and creative results have been obtained.Three new types of chiral molecular tweezers containing unsymmetrically disubstituted urea unit, four new types of chiral molecular tweezers based on steroid cholic acid and one type of heteroaromatic molecular tweezers involving multiple hydrogen-bonding site have been designed and synthesized.

本文致力于新型手性不对称脲、胆甾和芳杂环类分子钳受体的设计合成及其对阴离子、中性分子和手性分子的识别及对映选择性识别性能研究，取得了一系列具有重要学术意义与应用前景的创新性结果。

The organic molecules with it-conjugated structure are ideal structural units for molecular wires. The asymmetric electronic structure of the molecular junctions is the basic reason for molecular rectification. Rotaxanes and catenanes are ideal structural units for molecular switches. The operation principle of molecular field effect transistors is quantum tunneling, the metal/insulator/mental tunneling is mainly.

具有π-共轭结构的有机分子体系是构造分子导线的理想单元；分子结的电子结构不对称性是分子具有整流特性的根本原因；轮烷和索烃是构造分子开关的理想单元之一；分子场效应晶体管的工作原理是量子隧穿，主要是金属－绝缘体－金属间的隧穿效应。

The small blue capacitor has very high chances to go fully shorted compare to electrolytic capacitor which is very rare.

小蓝电容器具有很高的机会去充分地缩短了比较电解电容器，这是非常罕见的。

In the Italian campaigns of 1513 and 1515, when the Swiss won the victories of Novara and Marignan, he acted as army chaplain.

在意大利的运动， 1513年和1515年，当瑞士赢得了胜利，诺瓦拉和marignan ，他担任军队的牧师。