性质

Coal blending and coke-making test data in relevant references were analyzed,the obtained conclusion is that coke property,especially for thermal property can be predicted by means of thermal property additivity of single kind of coke.

以有关参考文献中的配煤炼焦实验数据为研究对象，分析其数据具有明显非线性交互作用的规律，得到的结论是焦炭的性质尤其是热性质，是可以通过单种焦的热性质加和进行预测的。

With economic development, the rock material is widely applied in the water conservation、 resources mining、 the civil construction 、 the railway and so on, a lot of problem about rocks urgently is demanded to solve, so there are very important theory and realistic meanings to thoroughly research its nature、 concerning and destroying mechanism,Due to natural function, massive joint and crack with rock, though the scale of these is small, it changes mechanics nature of rock greatly and reduces deforms mould and intensity parameter, and makes it presenting aeolotropy .

随着我国经济建设的发展，岩石材料被广泛应用于水利、资源开采、土木建筑、铁路等领域，与此同时出现许多岩石方面迫切需要解决的问题，所以对其性质、本构关系、破坏机理的深入研究有重要的理论意义和现实意义。由于天然作用，岩石内部存在大量的节理和裂隙，虽然这些裂隙的规模不大，但裂隙的存在大大地改变了岩体的力学性质，使其变形模量及强度参数降低，且使岩体的力学性质呈各向异性。

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 students can't catch on the essence of the relationship between the atomic structure and the element properties, and they often mistake the element's properties for the atomic's.

对"原子结构与元素性质的关系"存在着各种糊涂的认识，往往将单质的性质误认为是元素的性质。

The Ew of 94 neutral atoms and 109 ions were calculated by the essential parameters (mass, quantity of electricity, atomic or ionic radius and number of the outermost electrons).

较好地说明周期表中元素性质、离子性质及其周期性递变规律，可作为定量某些元素性质的基础数据，有一定的理论意义和应用价值。

After analyzing the difference of orbit electron distribution, valence electron number, atomic radius between impurity M and Cu, we clarify that the unusual low temperature property of heavy electron system CeCu〓M〓 not only come from the"size effect"of impurity, the magnetism, valence electron number of impurity also play an important role.

各杂质掺杂对CeCu〓低温性质的影响是由杂质自身性质所决定的，通过分析不同杂质的轨道电子分布、价电子数目、原子半径与Cu原子的区别，结合实验结果，证明重电子系统CeCu〓M〓的低温性质不但与杂质的尺寸效应有关，而且杂质的磁性、价电子数也起重要的作用。

The parallel bamboo curtain laminated panels of different grades were manufactured in the laboratory using the mature production technology of bamboo curtain plywood, and the bending and compression properties have been studied respectively.

在不同部位竹材性质测试的基础上，分析了竹材、木材物理力学性质的差异，建立了毛竹的物理力学性质与密度之间关系的拟合方程，并针对将竹壁分成6层等厚竹篾工艺生产的竹篾，根据竹材的抗拉弹性模量分别制定了分4级、3级和2级等3种力学分级方法。

Second, in the viewpoint of crypto analysis, the practical requirement for the cryptographic function is to construct the function that can resist all the known crypto analysis and attacks. In advanced, the main cryptographic properties are compared, and the relation among these cryptographic properties is analyzed, including the trade-off ones. Get the conclusion that the construction of cryptographic Boolean function is to find out the proper Boolean function in the whole vector space under the restriction of several cryptographic properties required for the security system.

然后本文从密码分析的角度，讨论了密码函数的实际需求，即构造能够抵抗已有密码分析与攻击的布尔函数；分析了布尔函数的主要的密码学性质，并比较了这些性质之间的相互关系，包括制约的关系；得出了构造布尔函数的实质的结论，即在向量空间中构造全体布尔函数，以所需的若干密码学性质作为限制条件，用有限域上的多项式、Walsh谱、Hadamard矩阵等数学工具找出适当的布尔函数用于加密体制的设计。

It subdivides the electro-market of inner Mongolia in the fifth part of dissertation, in this basis, take the electricity of the total society demanding as the main factor, take the electricity of industry demanding divided by properties and electricity of district demanding divided by district as the subordinate factor, definitude the core target market of inner Mongolia electric power corporation divides up Baotou, Huhehaote and Wuhai according to district, industry and other electro-market according to properties; the main target market divides up Bameng and south west of Ximeng according to district, according to properties is agriculture market and resident market; the subordinate target market divided up Xuejiawan, Wumeng, Yimeng according to district, according to properties is merchandize and bite and sup, material supplied and sold and warehousing, traffic transporting and post communication, geological survey and exploration and construction market.

论文第五部分对内蒙古电力公司进行电力市场细分，据此基础上，把全社会总用电量作为母因素，分别把按用电性质划分的行业用电量和按用电区域划分的内蒙古电力公司所辖区域用电量作为子因素，首次运用灰色关联分析法进行目标市场确定，明确了内蒙古电力公司的电力市场营销的核心目标市场按地域分为包头地区用电市场、呼市地区用电市场、乌海地区用电市场，按用电性质为工业、其他事业用电市场；主要目标市场按地域分为巴盟地区用电市场、锡盟西南地区用电市场，按用电性质为农林牧渔水利业、城乡居民生活用电市场；次要目标市场按地域分为薛家湾地区用电市场、乌盟用电市场、伊盟用电市场，按用电性质为商业公共饮食、物资供销和仓储业、交通运输和邮电通讯业、地质普查和勘探业、建筑业用电市场。

In this article, the basic properties of the normal set structures, especially those of substructures and the restricted formulas in the Boolean-valued structure, together with the isomorphism between the structure and the ground model M are investigated.

本文研究的正规弗晰集合结构的一些基本性质，主要是：子结构的性质；受囿公式在U~中的性质和U~(2)与基础模型M的同构性质。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了