浅谈初中物理中物质的属性和特性

阐述在初中物理教学中,应淡化"物质的属性"、"物质的特性"的区别,一般强调为物质的属性或物质的固有属性即可。

试论中国菜肴的“属性”

中国菜肴是中国传统烹饪艺术的一个突出代表,而菜肴的“属性”则是中国菜肴最显著特点之一,也是我们通常用以鉴别、评论菜肴与烹调技术质量高低的主要标准。然而中国菜肴的“属性”到底有多少种,到目前为止尚未形成共识。

组织团队“属性裂痕”的一般表现、破坏力与弥补之方

从组织团队“属性裂痕”的引致根源来看,其并非在于行动过程中的不一致或对立行动,而是个体成员不同的教育背景、性格特征、行为偏好和目标定位决定的个体特性的差异,这就会在团队中画出一条条分割线,将团队实质割裂为不同的子团队。团队“再分类”加剧将使管理过程复杂化,单一化评级指标将加速“属性裂痕”深化,属性间派系纷争将恶化拉帮结派现象,“属性规矩”威胁制度权威将分散员工工作精力。弥补团队“属性裂痕”,应避免人才选拔内卷化,破解小团体,并坚持多元提升配置,避免走向“单一性”极端。

文件属性可以这么玩！

电脑中的任何一个文件都有自己的属性．包括文件的修订者、修改日期、扩展名等。我们只要在文件上右击．选择“属性”命令。该文件的相关信息便一览无遗了。可是。当我们须要对文件的这些信息进行修改时。却发现并不是那么容易。不过．人们总是在不断对麻烦挑战。不断让各种操作变得更简单。Properties Plus这个小软件就能让我们更轻松地玩转文件的属性。

XP空间：文件属性玩“花样”

在WindowsXP中，使用鼠标右键点击任何文件，都会在菜单中出现一个“属性”命令，对此大家可是再熟悉不过了。通过属性命令，可获知文件容量的大小、进行共享设置等常用操作。不过今天我们要说的，可不仅仅这么简单。

不平常的“属性”对话框

我们知道，无论是什么格式的文件或文件夹都可以打开一个“属性”对话框。在右键菜单的最后一项选择“属性”命令即可或者桉住Alt键后双击文件或文件夹，同样可以打开其属性对话框，朋友们可别小看这个不起眼的对话框，其中可大有学问。

文件夹“只读”属性为我所用

我们知道，无论是什么格式的文件或文件夹都可以打开一个“属性”对话框，在右键菜单的最后一项选择“属性”命令即可，或者按住Alt键后双击文件或文件夹，同样可以打开其属性对话框，朋友们可别小看这个不起眼的对话框，其中可大有学问。

Flash MX工具及“属性”面板（上）

上期中,笔者介绍了FlashMX中新增功能的一部分,在本期中,笔者将要介绍FlashMX中另外几个比较有用的新增功能,然后再给大家讲解Flash工具地使用及“属性”面板的设置。

近二十年价值范畴研究述评

文章对我国当代价值哲学中的几种价值界定进行了剖析,指出了它们各自存在的问题;并在此基础上提出了解决问题的出路和新的尝试,认为价值是指经过人的实践改造的对象物能满足人的生存和发展的需要的效用,这样的价值物就成了人的生存与发展所追求的价值目标。

New seismic attribute:Fractal scaling exponent based on gray detrended fluctuation analysis

Seismic attributes have been widely used in oil and gas exploration and development. However, owing to the complexity of seismic wave propagation in subsurface media, the limitations of the seismic data acquisition system, and noise interference, seismic attributes for seismic data interpretation have uncertainties. Especially, the antinoise ability of seismic attributes directly affects the reliability of seismic interpretations. Gray system theory is used in time series to minimize data randomness and increase data regularity. Detrended fluctuation analysis （DFA） can effectively reduce extrinsic data tendencies. In this study, by combining gray system theory and DFA, we propose a new method called gray detrended fluctuation analysis （GDFA） for calculating the fractal scaling exponent. We consider nonlinear time series generated by the Weierstrass function and add random noise to actual seismic data. Moreover, we discuss the antinoise ability of the fractal scaling exponent based on GDFA. The results suggest that the fractal scaling exponent calculated using the proposed method has good antinoise ability. We apply the proposed method to 3D poststack migration seismic data from southern China and compare fractal scaling exponents calculated using DFA and GDFA. The results suggest that the use of the GDFA-calculated fractal scaling exponent as a seismic attribute can match the known distribution of sedimentary facies.

Application of seismic multi-attribute fusion method based on D-S evidence theory in prediction of CBM-enriched area

D-S evidence theory provides a good approach to fuse uncertain inlbrmation. In this article, we introduce seismic multi-attribute fusion based on D-S evidence theory to predict the coalbed methane （CBM） concentrated areas. First, we choose seismic attributes that are most sensitive to CBM content changes with the guidance of CBM content measured at well sites. Then the selected seismic attributes are fused using D-S evidence theory and the fusion results are used to predict CBM-enriched area. The application shows that the predicted CBM content and the measured values are basically consistent. The results indicate that using D-S evidence theory in seismic multi-attribute fusion to predict CBM-enriched areas is feasible.

Effect of metallic ions on dispersibility of fine diaspore

Dispersion experiments were conducted to study the influence of metallic cations on the dispersibility of diaspore. The reaction mechanisms were investigated based on the analysis of zeta （ξ） potential and calculations of solution chemistry and DLVO theory. The results show that the valence of cations, instead of the cation type, plays an important role in the dispersibility of diaspore The impact of multivalent metallic cations is greater than that of monovalent cations. In the presence of Ca^2＋ and Mg^2＋, the dispersion of diaspore doesn＇t change in the range of pH value below 10. However, Ca^2＋ and Mg^2＋ may induce strong coagulation of particles when pH value is higher than 10. The adsorption of species of calcium and magnesium ions on diaspore can cause the compression of electric double layer, the decrease of the absolute value of zeta potential and the repulsion force between diaspore particles. The new IEP （isoelectric point） appeared at pH value of 11 may attribute to the adsorption of Mg（OH）2（s）.

论齐硕姆心身观及其理论意义

齐硕姆在心身问题上反对“心身同一论”和“实体二元论”,主张“属性二元论”。其“部分学的本质主义”理论指出了人不等同于其“接续之是”的身体,而具有其身体所不具有的一些整体和内在的特征,从而反驳了心身观上的物理主义观点。其“副词理论”驳斥了心身观的“实体二元论”,否定了现象是对象的形式或本质的观点。但他对物理主义和“实体二元论”的批判并不彻底,存在着局限性。齐硕姆的心身观提出了一些著名理论,在现代西方哲学史上产生了较大影响。

转喻与指类分析下的翻译研究

基于"属性强加联想"模式和"类-属"联结,研究转喻的指类分析并探讨转喻在整个翻译过程中的作用。翻译是具有转喻性的认知活动,翻译过程中目标语文本的理解和表达,皆体现了转喻的"属性强加联想"的思维,同时指出转喻的指类分析也是一种翻译策略。

Some New Results from the Electron Theory on the Elastical of Alkahoe Earth Metals and Rare Earth Elements

With the introduction of Poisson's ratio in the expression of Young's modulus,nearly all the theoretical values of the various elastic moduli for the alkaline earth metals and rare earth elements can be greatly refined, with the single exception of the theoreticalvalue of Young's modulus for Pr which is slightly increased This points to the validityof the new theory, that the bulk modulus is independent of the Poisson's ratio, and further that the valency electron structures of solids as determined by Yu's theory are correct.

Risk assessment model of tunnel water inrush based on improved attribute mathematical theory

Tunnel water inrush is one of the common geological disasters in the underground engineering construction.In order to effectively evaluate and control the occurrence of water inrush,the risk assessment model of tunnel water inrush was proposed based on improved attribute mathematical theory.The trigonometric functions were adopted to optimize the attribute mathematical theory,avoiding the influence of mutation points and linear variation zones in traditional linear measurement functions on the accuracy of the model.Based on comprehensive analysis of various factors,five parameters were selected as the evaluation indicators for the model,including tunnel head pressure,permeability coefficient of surrounding rock,crushing degree of surrounding rock,relative angle of joint plane and tunnel section size,under the principle of dimension rationality,independence,directness and quantification.The indicator classifications were determined.The links among measured data were analyzed in detail,and the objective weight of each indicator was determined by using similar weight method.Thereby the tunnel water inrush risk assessment model is established and applied in four target segments of two different tunnels in engineering.The evaluation results and the actual excavation data agree well,which indicates that the model is of high credibility and feasibility.

Generalization Rough Set Theory

In order to avoid the discretization in the classical rough set theory, a generlization rough set theory is proposed. At first, the degree of general importance of an attribute and attribute subsets are presented. Then, depending on the degree of general importance of attribute, the space distance can be measured with weighted method. At last, a generalization rough set theory based on the general near neighborhood relation is proposed. The proposed theory partitions the universe into the tolerant modules, and forms lower approximation and upper approximation of the set under general near neighborhood relationship, which avoids the discretization in Pawlak's rough set theory.

Analytical solution of a circular lined tunnel with alterable mechanical property under hydrostatic stress and internal pressure

The influence of the interaction between surrounding rock and lining on the long-term behaviour of a tunnel in service is significant.In this paper,we proposed a mechanical model of the circular lined tunnel with the alterable mechanical property under hydrostatic stress and radially inner surface pressure of the lining.The alterable mechanical properties of the surrounding rock and the lining are embodied by the changing of their elasticity modulus with service time and radial direction of the tunnel,respectively.The proposed mechanical model is successfully validated by comparison with the existing theoretical models and the numerical simulation,respectively.The influences of the main parameters of the proposed mechanical model,such as the radial power-law indexes and the time-varying coefficients of the surrounding rock and the lining,as well as the radially inner surface pressure of the lining,on the interface displacement and pressure between surrounding rock and lining are investigated.The research results can provide some valuable references for timely diagnosis and correct evaluation of the long-term behaviours of a tunnel in service.

An improved reduction algorithm based on the degree of attribute discernibility

This paper deals with the problem of attribute discernibility reduction and proposes some new concepts to rough set theory （RST） based on the discernibility matrix of Skowron, such as secondary core, regeneration matrix and the degree of attribute discernibility （DAD）. This paper puts forward an attribute reduction algorithm based on maximum discernibility degree, which opens up an effective way of gaining minimum attribute reduction of decision table. The efficacy of this algorithm has been verified by practical application in a diagnostic system of loader, which substantially decreases information gathering requirement and lowers the overall cost with no loss of accuracy.