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This is not surprising, given the closer proximity of Pengyang to the Asian inland dust sources; The average content of calcium carbonateis of Pengyang section is not only higher than that of central loess plateau, but also higher the west of Chinese Loess Plateau, which reflected Pengyang loess had been deposited by near Liupanshan\'s substances that contained more calcium carbonateis; The content of diffluent element of 10m depth in the section increased fast, which indicated that the modern eluviation and the leaching depth of loess may be stronger than our guess; The soil growth index can reflect the intensity of soil forming and the climatic changes; The "abrupt chang" of glacial and interglacial period was caused by strong soil-forming processes that enlarged the discrepancy of granularity between loess and paleosol. However, the magnetic susceptibility nearly cannot reflect the existence of S_8 and the magnetic susceptibility of S_7 is highest in the whole section, which is inconsistent with other studies that S_5 has the highest magnetic susceptibility.Thin-section examination shows that the micro-texture of the soil layers is divided into both cementing texture in S_7, S_5 and S_1, and granular texture in all others.

与其它剖面相比，彭阳剖面粒度总体上要比东部的洛川、西安，甚至西部的兰州、新疆东湾要粗；CaCO_3平均含量不仅高于黄土高原中部，也高于高原西部，反映出本剖面富含碳酸盐的六盘山近源沉积起到了很重要的作用；易溶元素含量在剖面10m处快速升高，淀积特征明显，反映出黄土受现代淋溶成土作用影响较大，黄土直立、疏松、多孔特性和高温与多雨组合的气候特点，使得元素淋溶、淀积的强度和深度超出了传统的认识和判断；烧失量与其它指标相比，不仅能区分冰期、间冰期；而且能够区分出次一级的冰阶、间冰阶，有较高的分辨率；土壤发育指数、红度能够反映土壤强度差异，是反映气候波动的较好指标；然而，磁化率不能反映古土壤S_8的存在，且S_7的磁化率在全剖面中最高，这与大多剖面S_5磁化率最高的特点不一致。4。

This thesis is composed of four sections. Section 1 gives an overview of theories about elderly security. It involves the demand of the aged, the concept, content, influential factors of family elderly support, the concept, content, type, model and economic effect of public pension, theories searched from the study of Chinese elderly security. Section 2 introduces the history of family elderly support, analyses the reasons of the existence of it, expatiates on the factors that weaken the function of it, such as modernization of agriculture, population aging, family miniaturization, urbanization etc. section 3 introduces the history of the social old-age insurance in Chinese rural areas, analyses its impendency from the aspects of social stabilization, the rights and interests of the peasants, rural employment. Section 4 is the most important part of the thesis. It first refers to foreign practical experiences on rural elderly security, then demonstrates the elderly support at home which combines family elderly support and social elderly support, especially analyses the public pension.

全文共分四部分：第一部分是养老保障概论，介绍了老年人的养老需求，家庭养老的概念、内容及影响因素，社会养老保险的概念、内容、类型、模式及经济效应，中国农村养老保障研究的相关理论；第二部分是中国农村家庭养老分析，介绍了家庭养老的历史，分析了其长期存在的依据，并进一步阐述了农业现代化、人口老龄化、家庭小型化和城市化等对中国农村家庭养老的冲击，弱化了家庭养老的功能；第三部分是中国农村社会养老保险分析，介绍了中国农村社会养老保险的发展历史，从社会稳定、农民权益和农村就业等方面分析了建立社会养老保险的迫切性；第四部分是建立中国农村社会养老保险制度的政策建议，是文章的重点，在借鉴国外农村养老实践经验的基础上，阐述了适合我国农村现实的家庭养老和社会养老相结合的居家养老，并对其中的社会养老保险进行了比较细致的分析。

The plaza is located at the Xianghu Lake Vacation Resort of Original Ecology which occupies an area of approximately 3 km2. Besides the business section,"The First World" contains sections of leisure, vacation and residential living. The leisure section is a leisure park with Leisure Expo Park theme, the vacational section consists a group of six grand hotels and the residential section contains scenic real estates leading to leisureful life.

除商业板块外，坐落于原生态湘湖旅游度假区，占地约3平方公里的&第一世界&还涵盖了游乐、度假、人居三大板块，游乐板块为主题游乐公园休博园，度假板块为六大酒店群落，人居板块为引领休闲生活的景观房产。

Hechi-Yishan fault zone is located in the north of Guizhong depression, which general strike is NW-EW and consists of a series of obduction fault. Generally, there are two main faults, the fault-fold belt about 5-20km is made of main faults, subsidiary faults and concomitant folds; The dip of main faults is N or S; It can be divided into four different structural sections along its strike (Hechi section, Yishan section, Liucheng section and Yingshan section). There are some differences among these sections in structure characteristic, such as fault structure, associated structure, fold association style, deformation of rock, and so on.

河池-宜山断裂带展布于桂中坳陷北部，总体走向NW-近EW 向，由一系列逆冲断层组成，主干断裂一般为2条，主干断裂与次级断裂及伴随的褶皱构造构成宽5-20km 不等的断褶带；主断裂倾向N 或S；沿走向可分为河池、宜山、柳城、英山四个构造段；各段断裂结构、伴生构造、褶皱组合样式、岩石变形等构造特征存在一定差异。

It consists of four teaching sections: the section of Marxism, the section of Orientalization of Marxism, the section of Compendium of China Modern History and the section of Moral Cultivation and the Fundamentals of Law.

下设四个教研室：马克思主义原理教研室；中国化马克思主义教研室；中国近现代史纲要教研室和思想道德修养与法律基础教研室。

In 29 cases, infiltrated regien tissue, scar-like collagen, surrounding soft tissue, envelope or vessel: frozen section to paraffin section 86.2%/96.6%, 100%/100%, 37.9%/41.4%, 13.8%/41.4% and 0.0%/10.3%, respectively. Referenced criteria line of psammoma bodies, necrosis and cells heteromorphism appeared in frozen section and paraffin section 62.1%/58.6%, 13.8%/10.3% and 37.9%/24.1% respectively.

主要指标为浸润局部组织、瘢痕样胶原、周围软组织、包膜或血管：冷冻切片与石蜡切片分别占86.2%/96.6%，100%/100%，37.9%/41.4%，13.8%/41.4%或0.0%/10.3%；辅助指标为沙砾体、坏死或细胞异型性：冷冻切片与石蜡切片分别占62.1%/58.6%，13.8%/10.3%或

the study aims at the actual network status of one work section in daqing oil field,makes a network analysis and planning for the new mixed model of this work section,expends wireless network for the work section on the basis of existing network,and conjoins wire and wireless network together to form an integrated oil field information transfer system.at the same time,using opnet modeler simulation flat roof to structure simulation models (network models,node models and a process model),and analyzing the functions and work mechanism of the major modules for related models,making a simulation for the structured network models,then according to the different parameters,analyzing the individual statistics comparatively such as delay,data dropped and so on,the effects of data packet,data rate and fragmentation threshold to the network performance are gained.after all these,the best structure network scheme for this improved section is determined.

摘 要：此项研究主要针对大庆油田某作业区的实际网络现状，对该作业区进行网络分析和规划，在该作业区现有的有线网络基础上扩充无线网络，实现有线网与无线网的综合，构成一个完整的油田传输信息体系。同时利用opnet modeler仿真平台为该作业区新建混合网络建立仿真模型(网络模型、节点模型和进程模型)，分析相关模型中主要模块的作用和工作机理，对已建立的网络模型进行仿真，在不同的参数设置下，通过对比分析时间延迟、丢包率等统计特性，得出数据包分组、数据率和拆分门限对网络性能的影响，最终决定改进网络的最佳组网方案。

There are three stages of making the digital section histogram, including the process of neatening the original section data, prophase preparing of making the section histogram, making the section histogram.

实测剖面是区域地质调查工作的重要组成部分，RGMAP数字剖面系统使实测地层剖面全面实现了计算机化。

3D mathematical description and simulation about Complex geological body containing faults has still been researched in the groping phase. According to boring drill core data, section data formed by explanation to seismic section, correlative data obtained by territorial geologic investigation, based on 2D or 3D section, forming rational fault section, then building TIN model of geological body. These are the main technical itinerary.

包含断层的复杂地质体的三维数学描述与模拟，目前仍处于研究探索阶段，其主要技术路线是首先根据钻孔岩芯数据或地震剖面解释而形成的剖面数据以及区域地质调查获得的有关数据，基于2D/3D剖面，形成合理的断层面，然后建立地质体的TIN模型，实现三维计算机模拟[1]。

Section 1 discusses the advantages of medical film printer and USB, and put forward one elementary design scheme of the system. The principle of laser printer and the holistic design scheme of system are presented detailedly in Section 2, while Section 3 expounds the technology of USB. Section 4 discusses design scheme of transfer system of the laser printer - includes the development of USB device and CPLD. The test of holistic laser printer and effect picture of medical image are presented in Section5. In the end, a review of this system and some bugs are put forwards at present.

本文主要分为六个部分，第一部分讨论了医用胶片打印机和USB总线技术的特点和发展趋势，并提出了系统的初步设计方案和研究意义；第二部分描述了医用激光胶片打印机的背景、工作原理和系统的各个组成部分；第三部分描述了通用串行总线2.0版(USB2.0)的通信原理；第四部分详细介绍了打印机数据传输系统的设计——包括USB设备的开发和CPLD的硬件和软件设计，并对这个传输系统的性能进行了分析；第五部分介绍了整个打印机的测试结果和实际打印医学影像的效果图；最后对本文做出总结并提出了不足之处和参考价值。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。