快乐春节

快乐春节。春节是中国人最隆重的传统节日。春节来临，背井离乡的游子都纷纷赶回家，盼望与亲人团聚。这也是我们中华民族有别于世界其他民族的文化心理。这种心理，在我们民俗文化的底蕴深处，可说是根深蒂固，流传甚广，仿佛是打在每个人身上难以磨灭的烙印。据记载，中国人过春节已有4000多年的历史。     

论马克思主义"和谐世界"观及其中国化历程

和谐世界思想的提出是马克思主义中国化进程中的一个有机组成部分.在溯本求源、开拓致思的基础上,胡锦涛提出了"和谐世界"思想.从和平崛起战略的提出到追求和谐的愿景,从和谐社会的建设到和谐世界的吁求,和谐世界思想层层推进,充分体现了马克思主义与时俱进的理论品格.     

给2015年同学的一封信

２０１５年的各位同学： 当你们打开你们的新概念电子信箱时，我──一个２００１年的初一学生写给你们的这封信，也许能幸运地成为你们的“不速之客”。 首先恭贺你们可以坐在电脑前完成我们在学校才能完成的一切课程，用不着担心近视担心成绩担心开小差挨骂担心上课疲倦担心教室外心烦的噪音担心嘴的活动越轨……我们现在吵着闹着买电脑而你们却笑着忙着换电脑。可以这样说，你们所拥有的一切都是我们当今的梦想，社会的发展就是如此神奇，一次次把梦想变为现实，从而又产生新的 梦想…… 在你们接读此信 时，也许正是第一缕阳 光射进你们…     

X探长破案记

前言:X探长是Y小镇上声名远扬的破案高手。他每天奔波在小镇的大街小巷,各种奇案都难不倒他。瞧,X探长又要出发去破案了!01失窃的钻石“丁零零……”急促的电话声响起,X探长拿起电话:“喂!什么事?”“你是X探长吗?我是商业大街88号珠宝店经理,我这里发生了抢劫案!”“好的,保护好现场,我马上就到!”X探长放下电话,立刻驾车赶往商业大街。     

天机云锦用在我——试论新闻特写

特写这种似乎介于文学与新闻之间的作品，与一般新闻作品的不同就在于，它是在忠实于事实的基础上，更形象地反映客观事实。本文就特写在进行文学性描写时应注意的几个方面的问题进行探讨。     

数学基因

有史以来,数学惯以它很强的概括性和抽象性而成为人类众多文化学科中最难的学科之一.美国著名的教育家布鲁姆经过多年的调查和论证指出:除了百分之一二的弱智儿童以外的所有儿童,对别人能学会的东西,他们也都能学会.     

Experimental Study of Structure Shock Vibration in Soil Caused by Explosion of Conventional Weapons

When hitting underground structures directly or exploding in rock-soil media near underground structures, the conventional weapons with large charge weight will make underground structures be subjected to strong shock vibration and cause personal casualty and damage of precision electronic equipments. The shock vibration has become one of the cardinal killing means of weapons. However, the existing methods of predicting structure shock vibration are limited evidently. In this paper the coupling coefficient of acceleration in clayey soil is obtained firstly. Subsequently based on repeated experiments of chemical explosion, after dimension analysis and by using method of multivariate stepwise regression, the calculation formulae of shock vibration acceleration for the underground structure are obtained finally. The formulae consider top and side explosion respectively, taking into account the effects of penetration depth, charge weight, distance to explosion center, rock-soil media, size of structure and buried depth. They are easy to use with high practicability and degree of confidence, and can provide credible evidence for prediction of shock vibration and vibration isolating design of underground structure.     

Modeling Strain Rate Effect for Heterogeneous Brittle Materials

Rocks are heterogeneous from the point of microstructure which is of significance to their dynamic failure behavior. Both the compressive and tensile strength of rock-like materials is regarded different from the static strength. The present study adopts smoothed particle hydrodynamics (SPH) which is a virtual particle based meshfree method to investigate strain rate effect for heterogeneous brittle materials. The SPH method is capable of simulating rock fracture, free of the mesh constraint of the traditional FEM and FDM models. A pressure dependent J-H constitutive model involving heterogeneity is employed in the numerical modeling. The results show the compressive strength increases with the increase of strain rate as well as the tensile strength, which is important to the engineering design.     

Numerical Simulation of Response of SRC Columns Subjected to Blast Loading

The dynamic characteristics and failure modes of steel reinforced concrete (SRC) columns subjected to blast loading are complicated because of the transient stress wave in the SRC columns and the interaction between steel and concrete. This paper presents a numerical simulation of the response of SRC columns subjected to blast loading using hydrocode LS-DYNA. In the numerical model, a sophisticate concrete material model (the Concrete Damage Model) is employed with consideration of the strain rate effect and the damage accumulation. An erosion technique is adopted to model the spalling process of concrete. The possible failure modes of SRC columns are evaluated. It is observed that the failure of SRC columns subjected to blast load can generally be classified into three modes, namely, a direct failure in concrete body due to the stress wave, a transverse shear failure near the support sections due to the high shear force, and a flexural failure pertaining to large local and global deformation of the reinforcing steel.     

The Reflection of Cultural Differences in a Joint Performance

Cultureisoneofthemostdifficulttermstobewelldefined.NewWebstersDictionarysaysitisnotonly"theacquiredabilityofanindividualorapeopletorecognizeandappreciategenerallyacceptedestheticandintellectualachievementofcivilizationoraparticularstageorstagesofcivilizationasinthecaseofacertainnationorperiod"butalso"thetotalofhumanbehaviorpatternsandtechnologycommunicatedfromgene-rationtogeneration".Thelatterisananthropologicalandsociologicaldefinition,whichagreeswithLongmanModernEnglishDictionary'sthirddef…