特征方向

Ganzi-Muli is a main metallogenic belt in western China.By studying it's metallogenic geological backgrounds, characteristics of structural activities, main types of the gold deposits and ore-controlling factors, and in virtue of the statistical prediction of DPIS(Deposit Positioning Inspecting System) and comprehensive information statistics, seven oreprospecting areas, identically, four A-type prospective areas and three B-type ones among them have been lineated.

甘孜-木里成矿带是我国西部金的主要成矿带之一，通过对甘孜-木里成矿带成矿背景、构造活动特征、主要金矿类型和控矿因素的分析，选取地层、岩浆岩、构造、化探异常、金属矿产和自然重砂矿物作为找矿预测标志，以DPIS的统计预测功能开展综合信息量统计和成矿预测，圈出找矿远景区7个，其中A类远景区4个，B类远景区3个，并进一步指出了每个远景区的成矿特征和找矿方向。

GanziMuli is a main metallogenic belt in western China.By studying it's metallogenic geological backgrounds, characteristics of structural activities, main types of the gold deposits and orecontrolling factors, and in virtue of the statistical prediction of DPIS(Deposit Positioning Inspecting System) and comprehensive information statistics, seven oreprospecting areas, identically, four Atype prospective areas and three Btype ones among them have been lineated.

甘孜-木里成矿带是我国西部金的主要成矿带之一，通过对甘孜-木里成矿带成矿背景、构造活动特征、主要金矿类型和控矿因素的分析，选取地层、岩浆岩、构造、化探异常、金属矿产和自然重砂矿物作为找矿预测标志，以DPIS的统计预测功能开展综合信息量统计和成矿预测，圈出找矿远景区7个，其中A类远景区4个，B类远景区3个，并进一步指出了每个远景区的成矿特征和找矿方向。

Ganzi-Muli is a main metallogenic belt in western China.By studying it's metallogenic geological backgrounds, characteristics of structural activities, main types of the gold deposits and ore-controlling factors, and in virtue of the statistical prediction of DPIS(Deposit Positioning Inspecting System) and comprehensive information statistics, seven oreprospecting areas, identically, four A-type prospective areas and three B-type ones among them have been lineated. Furthermore, metallogenic characteristics and prospecting direction of every areas above have been discussed.

甘孜-木里成矿带是我国西部金的主要成矿带之一，通过对甘孜-木里成矿带成矿背景、构造活动特征、主要金矿类型和控矿因素的分析，选取地层、岩浆岩、构造、化探异常、金属矿产和自然重砂矿物作为找矿预测标志，以DPIS的统计预测功能开展综合信息量统计和成矿预测，圈出找矿远景区7个，其中A类远景区4个，B类远景区3个，并进一步指出了每个远景区的成矿特征和找矿方向。

A new netlike model is developed based on the above model that can simulate the influence among the faults with different angles.

将本论文所有模型彻底网格化，可以模拟多组不同方向断层上的地震活动特征及其相互影响特征。

By substantive field and indoor practice development work, this paper systemic researched the source, the sedimentary system, sedimentary facies, paleogeographic environment, under the guidance of sedimendary geology and petrolume geology theory.

论文通过大量的野外和室内的研究工作，结合现代沉积地质学和石油地质学理论，对鄂尔多斯盆地堡子湾地区延长组长6的物源方向及母岩性质、沉积相的确定标志及类型特征、古地理环境特征进行了系统全面的研究。

The Es formation was divided into seven third order sequences based on the seismic, drilling and logging data, and plans deposition system plane distribution maps of different time were plotted by dominance phase principle. The lower Es4 is flood-overlake facies mainly; the upper Es4 is meandering stream and braided river delta deposition above the shore shallow lake background; in the Es3 period, the south mainly developed braided river, meandering stream delta, the northeast area main developed meandering stream delta, the middle area mainly developed semi-deep lakean d deep lake sediments. From lower Es3 to upper Es3, the delta scale gradually increased and the depositional area gradually moved to the east and the southeast; the Es2 period was dominated by shore-shallow lake sediments and widely developed braided river delta and delta deposits; the Es1 period was dominated by shore-shallow lake shoal deposits, and in the south developed meandering stream and braided river delta deposits.The lothological traps of the Shahejie group are mainly fluxoturbidite and stratum lateral pinch-out, and its formation and the distribution of the lothological trap were controlled mainly by the basin structure characteristic, palaeogeomorphology and tectonic activity and so on. It had a beneficial geological condition to develope sublacustrine slump turbidite fans in Jishan, Jiangjiadian and Wawu.

利用地震、钻井、测井等资料，将古近系沙河街组划分出7个三级层序，通过剖面沉积学分析，以优势相原则绘制不同时期各亚段沉积体系平面分布图：沙四下总体以洪水-漫湖沉积为特征，沙四上沉积时期是在滨浅湖背景之上发育了曲流河三角洲和辫状河三角洲沉积；沙三段沉积时期南部主要发育辫状河、曲流河三角洲，西北部地区发育曲流河三角洲，中部地区主要为深湖—半深湖沉积；由沙三下至沙三上，西北部三角洲规模逐渐增大，沉积范围逐渐向东、东南方向推进；沙二段沉积时期为滨浅湖沉积，在背景之上广泛发育了辫状河三角洲和三角洲沉积；沙一段以滨浅湖滩坝沉积为特征，南部发育了曲流河三角洲和辫状河三角洲沉积；沉积地层中的岩性圈闭以滑塌浊积岩岩性圈闭和地层侧向尖灭型岩性圈闭为主，其形成和分布主要受盆地结构、沉积古地貌和构造活动强度等因素控制，北部基山、南部江家店和瓦屋具有发育滑塌浊积扇的良好地质条件。

Macropore characteristics of main type soil--krasnozem, crimson loam, phaeozem and brown loam was firstly studied using soil section photography on the horizontal and vertical profiles in order to farther investigate the preferential transportance of soil water and solute.

中文题名土壤大孔隙特征的研究副题名外文题名 Characterizing macropores in soil 论文作者刘伟导师区自清研究员学科专业土壤学研究领域\研究方向学位级别博士学位授予单位中国科学院沈阳应用生态研究所学位授予日期2001 论文页码总数165页关键词土壤物理土壤大孔隙馆藏号BSLW /2003 /S152 /2 本文应用双剖面土壤切片成像法结合土壤优先水流穿透曲线，首次研究了4种主要地带性土壤：红壤、赤红壤、黑土和棕壤的大孔隙特征。

Unlike the uniform linear array,the unform circular array is able to provide 360°azimuthal coverage,within the mode space,it has the covariance matrix of the Toeplitz-like struture while all sources are uncorrelated,with which the noise variance can be made out directly,note that will eliminate an eigendecomposition when the ESPRIT is applied,consequently reduce the computational load.

对于均匀圆形阵列，在信源都是非相干信源的情形下，由于模式变换后的协方差矩阵具有类Toeplitz的特征，因此，我们可以根据这种特殊的性质，直接求得噪声分量，因此若使用ESPRIT算法进行波达方向估计，就可以避免第一次特征分解，较大程度上减少了计算量。

This algorithm uses HSV colour space which is more compatible with human's visual sense feature and takes advantage of human's perception feature on colour to quantise colour components in non equal interval and to form the eigenvector. Then it uses histogram intersection distance algorithm to match pieces' feature, and according to the characteristic of stitching pieces of image its own, the image segmentation technique is adopted to cull the background of the piece, and simultaneously the approach to match the pieces by direction is implemented.

算法采用符合人类视觉特性的HSV颜色空间，利用人对颜色的感知特性对颜色分量进行非等间隔的量化并形成特征矢量，应用直方图相交距离进行了特征的匹配，并且针对拼块图像自身的特点采用了图像分割技术对拼块图像的背景进行剔除的同时实现了按方向进行匹配的方法。

The main valuable contributions listed as the following: The dissertation at first takes a view on the currently dominant modulation recognition algorithms and summarizes the basic structures and the characteristics of those. Meanwhile, it summarizes the methods of extracting the classification feature and generalizes the commonly used features.

主要工作可概括如下：论文首先概述了目前主要的调制识别方法，总结了一般调制识别方法的基本结构和各组成部分的特点，同时还对分类特征的提取方法和常用的分类特征进行了概括及总结，并且提出了调制识别领域有待解决的主要课题和研究方向。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。