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The main study areas are as follows: 1 The landscape classification system of the urban-rural ecotone is set up based on the studying on land-use type of urban area and rural area, and then it is used to establish a regional landscape data warehouse for deposition, modification and management; 2 A group of landscape structure and pattern indices and patch area spectrum analysis methods are used to describe the structural and heterogeneous characters of all the landscape elements from different aspects; 3 The temporal and spatial difference of the landscape pattern of main road belts of the research area are also analyzed with the same method. Their basic process and regularity of urban axial expanding of the southwestward of Shanghai City are initially knewn well; 4 According to the traits of the ecotone, the principles and basis of vegetation classification, the ecotone vegetation classification system is set up, its species constitute, community patch characters, the relationship between vegetation types and landscape categories are analyzed, meanwhile, the vegetation sample maps are made; 5 Based on above studies, some landscape ecological stratedies within the research area were discussed. The following are the results of this study

城乡交错带地区的景观分类,在对城市地区和农村地区的土地利用类型研究的基础上建立了城乡交错带的分类体系,并在此基础上用ARC\INFO软件分时段、分区、分要素建立研究区的景观图形数据库,对数据进行存储、修改和管理;2)利用多种景观结构、格局指数和斑块面积谱分析方法,从不同的侧面对各种景观组分的结构以及区域的景观格局特征进行了分析,并对其成因进行了探讨;3)利用相同的分析方法,分析了城乡交错带中的城市干道两侧的景观格局特征的空间和时间分异情况,初步掌握上海城市西南轴向扩张的基本过程和规律;4)对城乡交错带中非独立的景观要素-植被,研究其遥感图象信息的基本特征,建立适合区域特点的植被分类体系,并在样区中建立了植被图形数据库和计算机制图,分析了植被景观种类组成、斑块等级等特征以及与不同景观的相互关系;5)在上述研究的基础上,对研究区内的景观生态对策进行了研究。

The best training samples are searched and selected on the whole image by the local space information and spectral matching, and then they are purified on spectral domains.

利用影像的空间信息在图像局部范围内自动搜索和选择最佳样区位置,再用光谱匹配对寻找到的最佳样区在光谱空间上进一步纯化。

Modern approach methods of geography, ecology, quantitative analysis, expert integration, remote sensing image analysis and geographical information system were combined to reveal the matters in this paper. The eco-geographical background of the research area and the research work studied by other scholars were comprehensively expatiated. The temporal and spatial variation of precipitation and soil moisture, vegetation and soil distribution, and land use/land cover were compared as well. On the basis of foregoing analysis, the eco-geographical differentiation was discussed. According to principles and indicators, with extension engineering method and integrated analysis, the physical geography boundary between subhumid and semiarid areas were demarcated. By using remote sensing image analysis, wavelet analysis of the perennial precipitation and temperature, and the comparison of temporal and spatial variation of the desertification, this paper accounted for the regional response to global environmental change and suggested the dominant environmental problems.

本文采用了地理学与生态学相结合、定量分析与专家集成相结合、遥感图像解译和地理信息系统相结合的方法,对研究区的生态地理背景和已有研究工作进展情况给予了全面的分析和阐述;通过对区域水分条件(大气降水、土壤水分条件)、植被、土壤、土地利用/土地覆被状况等环境要素的时间与空间特征的对比分析,探讨了研究区内部生态地理特征的差异;在一定的原则指导下,通过建立指标体系,以可拓工程方法和模型为支撑,经过综合分析确定了研究区内半湿润、半干旱区界线划分方案;通过遥感图像解译、典型站点多年降水与温度的小波分析、土地沙漠化时空变化的对比分析等,说明了研究区域对全球变化的响应;表明了该区域所面临的主要环境问题。

In order to determine organic storage and its space distribution characteristics in paddy field of region, on the basis of second soil survey database, the space databases in unit of soil local type were set up by adoption Arcview software, integrated with GIS software, basined on soil type methods and region scale, the distribution of soil organic carbon storages in purple paddy soil of Chongqing were investigated. The results showed that the storage of SOC in Banan district of Chongqing was 6.48×10^6 t and average SOC density in Banan district with 8.31 kg/m^2 was higher than that of China.

为了明确区域稻田土壤碳库蓄积量及其空间分布特征,以全国第二次土壤普查数据资料为基础,运用地理信息系统软件Arcview建立研究区以土种为单位的空间数据库,结合GIS空间分析功能,基于土壤类型法估算重庆市巴南区稻田土壤有机碳储量及其空间分布特征,结果表明:研究区稻田土壤有机碳总储量约为6.48×10^6t,平均土壤有机碳密度为8.31kg/平方公尺,略高于全国平均水平。

In this study, the genomic structure and regulatory elements of ApoD from 10 representive species including protozoan, invertebrate, protochordate and vertebrate were analyzed and compared. The genomic structure of ApoD is less conserved in organisms from protostome to deuterostome invertebrates, while it is highly conserved among chordates including amphioxus and verebrates. All four conserved cysteine residues are present in amino acid sequence of deuterostome ApoDs, while there are only two cysteine residues in amino acid sequence of protostomes ApoD. Structure divergence between protostome and deuterostome ApoD proteins suggests their function difference. The majority of regulatory elements are present in nearly all organism ApoD genes ranging from unicellular protozoan to mammals, suggesting that ApoD plays a very fundamental role, and possesses a conserved regulatory mechanism. However, there also exist some specific regulatory elements, which are present only in certain species and may perform some special roles.ApoD mRNA expression in murine NIH/3T3 fibroblasts exposed to various stresses such as as hydrogen peroxide and UV light shows dose-dependent increase. And a fly homolog of ApoD, Glial Lazarillo, whose overexpression results in increased resistance to hyperoxia as well as a extension of lifespan under normoxia and resistance to starvation without altering lipid or protein content.

本文首先从生物信息学角度对分属于原生动物、无脊椎动物、头索动物和脊椎动物类群的10种动物ApoD的基因结构及调控区的调控元件进行分析及比较,发现:(1)ApoD基因外显子-内含子结构从原生动物草履虫到原口动物再到后口动物海胆的进化过程中不保守,但在分析的几种脊椎动物中相当保守;(2)文昌鱼ApoD基因扮演从无脊椎动物到脊椎动物承上启下的角色,可能代表了脊椎动物ApoD基因原型;(3)四个半胱氨酸保守位点在后口动物中都存在,而在原口动物中只存在两个,原口、后口动物ApoD蛋白一级结构上的差异反映蛋白功能上可能也存在一定差别;(4)调控区大多数主要调控元件为不同动物共有,说明ApoD主要功能及其表达调控在进化中相当保守;(5)ApoD基因个别调控元件是随着物种进化而出现并开始发挥相关作用,如SF-1;还有一些调控元件在进化过程中还没有发现其规律,这说明ApoD某些功能和基因表达调控模式可能因物种不同而存在一定的差异。

For image enhancement of digital radiography, the traditional processing methods originally used in various tomographic imaging modalities aren't available for enhancing the digital radiographic images, especially for the digital chest images because of the wide dynamic range of information between x-ray emerging from the heavily attenuated mediastinum (heart, spine, aorta, and other central features on the radiography) and subdiaphragmatic area and those that have passed through the air- filled lung.

对于数字放射图象的增强,原先用于CT等各种断层医学数字图象的传统处理方法并不能获得满意的效果,尤其对于数字放射胸片图象。其原因在于放射胸片图象具有相对较宽的信息动态范围,从具有非常大吸收系数的纵隔区(放射上指脊柱,心脏,主动脉)及下隔膜区到X线极易穿透的充满空气的肺部。

In this thesis , firstly, TM remote sensing images were geometry rectified , image intensification, mosaic and cropping by using remote sensing image software ENVI, selected computer-aided supervised classification means to cany distribution using TM remote sensing images of qitai County ,and incorporated soil category material to achieve underlaying surface parameter and vegetation cover degree information in the region of interest .

本文运用遥感图像处理软件ENVI对所选的TM遥感图像进行了几何纠正、图像增强、镶嵌和裁剪,选择计算机辅助监督分类方法,对奇台县TM遥感图像进行了解译分类,并结合研究区土壤类型资料得到了研究区下垫面参数和植被盖度信息。

An earthquake nucleates and happens not only as a result of increments and changes in back ground tectonic stress field, but also as a result of stress changes in the focal region, so seismic wave velocity and attenuation contain information on stress changes of the Earth's interior as a result of changes in the physical state of materials.

地震的孕育和发生除了与区域背景构造应力的增长变动有关,也是震源区应力增长及破裂发展的结果。因此地震观测资料必然携带有震源区应力应变增长及破裂发展的信息。

As the only phosphatase regulated by Calmodulin, calcineurin plays an important role in psycological function.

钙调蛋白磷酸酶是唯一一个受钙调素调节的蛋白磷酸酶,有着重要的生理功能作用,然而它的CaM结合区及自抑制区的结构信息却长期处于未知状态。

Finally, the thesis makes a preliminary discussion in the use of the ANN in the prewarning of SDCMA, and puts forward to an assumption of the SDCMA information system.

最后,就神经网络方法在煤矿区可持续发展预警中的运用进行了初步的探讨,并提出了煤矿区可持续发展预警信息系统的设想。

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Do you know, i need you to come back

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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

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