ASSESSMENT OF THE EFFECTIVE RANK OF A (CO)VARIANCE MATRIX: A NON-PARAMETRIC GOODNESS-OF-FIT TEST

Each eigenvector of the dispersion matrix[X]~T[X]was shown to be a partial predictor of the originaldata matrix [X],the sum of the predictions from the individual principal components being equal to theexpectance of [X].By comparing the distributions of the members of two neighbouring predictedmatrices,[X]_(1...i)and [X](1...i+1)(i.e.the sums of the first i and i+1 individual predictions respectively),it was shown that they should be indistinguishable provided that i is equal to or greater than the effectiverank of [X],and significantly different otherwise.This was confirmed by analysing the visible absorptionspectra of methyl orange and methyl red solutions as well as the Raman spectra of Na_2SO_4 and MgSO_4solutions.On the grounds of these findings,a non-parametric goodness-of-fit test for assessing theeffective rank of[X]was proposed which proved to be comparatively conservative and more robust thanmost currently used tests.     

石英环带结构填图有效性研究—以胶东乳山金矿为例

本文在胶东乳山金矿热液石英环带结构研究基础上，提出了一种新的矿物学填图参数，即石英环带韵律数。试验表明，石英环带韵律数等值线图可以反映热液活动的轨迹，并能指示矿质富集的地段。     

稻麦农业气象决策服务系统

RWAMDSS具有作物产量预报、作物气候评价、作物生长模拟、作物田间诊断专家系统等功能，是一个较为完整的农业气象决策服务系统。文章详细介绍了它的设计原理、结构及功能特点。     

自流观测井泄漏的处理与水动力参数的试验研究

本文以苏１８井为例介绍了自流井泄漏的处理技术与井口动力参数的试验结果，采用钻也漏仪确定泄漏部位，内衬套管对环状间隙灌浆的堵漏技术，效果良好。采用不同泄水孔断面积对井口水动力参数进行了系列观测试验，对试验结果了分析，并推导了各参量间的函数关系，两者相当吻合，可以互相印证。     

工程地震勘探综述

本文对工程地震勘探作为一门年轻的、独立的学科，其诞生和发展的历史进行了评述。文中对工程地震勘探涉及的研究内容。与地震勘探的关系，所取得的成果进行了论述。对应用超声地震模型技术模拟解决工程地震勘探实际问题发表了见解，并对工程地震勘探未来的发展进行了展望。     

用图像处理技术研究油气田的航磁航放异常

用图像处理技术对下述与油气田异常有关的问题进行了研究：快速提取高频弱磁异常，估算高频磁异常源的埋深，放射性异常性质的归一化处理，典型异常剖面的分析，以及油气远景评价，提出了４个有希望含油气的异常．经验证，这４个异常中有３个见到油气显示，其中１个为工业气流．     

二维完全非均匀介质中位场格林函数的数值解

利用数值模式匹配理论，对具有轴对称的任意二维非均匀介质中位场的格林函数给出数值解。应用这一数值解，对复杂介质环境中双侧向测井响应进行了高效的数值分析。由于采用了半解析-半数值的混合方法，较之二维有限元分析具有很高的效率，节省大量计算时间。     

西安医疗热矿水分类及其利用

西安地热资源较丰富，目前开凿的热水井多用于洗浴医疗。区内不同类型的地下热水其水质各具特点。按医疗效矿水分类，基岩热矿水属氟水、硅水和氡水，第三系热矿水属氟水、硅水、碘水、棚木及锶水；第四系热矿水属氟水。本文初步分析了西安医疗热矿水的分类及其利用，并提出了进一步开发利用时注意的问题。     

Physicochemical Conditions during the Formation of Dalingkou Ag—Pb—Zn Deposit,Zhejiang Province

On the basis of mineral paragenesis and the chemistry and homogenization temperatures of fluid inclusions, the physicochemical parameters were calculated for the formation of the Dalingkou Ag-Pb-Zn deposit in Zhejiang. From the early to the late stage of mineralization the ore-forming temperature venation was found to be 298.5 °C → 267.0 °C → 217.6 °C → 167.3 °C, with a corresponding pH change of 3.0 ∼ 5.8 → 6.1 → 6.7→ 5.0 ∼ 7.3. The pressure changed from 403.8 to 128.5 atm, andlogf S₂-9.9 → -11.2 → < -15; logf o₂< -44→ -45.6 ∼ -42.6 → > -44.2; and logf co₂ around -1.55. In conjunction with geological observations, the deposit is considered to be of meso-epithermal origin, i.e., it was formed after continental volcanic-subvolcanic activity. The major factors affecting ore precipitation are the decreasing temperature and the increasing pH of ore-forming solutions.