中值

But, fusain is high in density and in HGI. It is usually concentrated in the coals of heavier and finer parts. Less oxygen functional groups exists in vitrain even if the total oxygen is high. However, more oxygen functional groups is found in fusain though total oxygen is low.

指出，镜煤的密度较低、HGI值较小、易富集于密度较氢的粗粒径煤中，尽管其总氧含量较高、但是含氧官能团的数量相对较低，丝炭的密度较大、HGI值较高、易富集于较重的细粒径煤中，其总氧含量尽管较低、但是含氧官能团的数量较高。

It is found that the concentration of sulfuric acid in liquid and the reaction temperature are the most sensitive factors for this process. Increasing the ratio of solid to liquid is disadvantageous for growth of crystals even though it does not effect obviously for the rate of dehydration of FGD gypsum. On the other hand,the more closed to the neutral range of pH value the liquid is adjusted,the better stability of the α-form calcium sulfate hemihydrate appear,the more favorable for modification of crystal habit the process is made.

研究中发现pH值和盐溶液浓度是影响FGD石膏脱水速度最敏感的因素，固液比虽然对脱水速度影响不大，但固液比增大对晶体生长和习性改良不利。pH值愈接近中性范围，愈能增强α半水石膏结晶在液相中的稳定性，有利于结晶习性改良。

The key technique in the MUSIC algorithm is the signal subspace extraction which can be found from the eigen decomposition of the sample covariance matrix of the antenna receive signal. The eigen value decomposition of a Hermitian matrix is implemented by using the QR algorithm, and the signal subspace is constituted by collecting the significant eigen vectors.

在复合信号分类演算法中的重要关键为信号子空间与杂讯子空间的分解，这两个子空间可以利用对天线收到信号的取样共变异矩阵做特徵值分解中求出，本篇并以QR演算法实现厄米特矩阵之特徵值分解，信号子空间便是由分解后的特徵向量所集合而成。

This paper proposed a new algorithm for eyes detection in the images. First, in a known face image, the homomorphic filter was used to enhance the contrast of the image and the iterative thresh choosing algorithm changed the gray images into binary ones. According to certain priori knowledge, it could get the candidate field of the eyes.

提出了一种新的图像中人眼检测算法，在一幅已知的人脸图像中首先采用同态滤波算法增强图像的对比度，然后利用迭代式阈值选择法对图像进行二值化处理，根据传统的先验知识获得眼睛的候选区域。

We consider the existence of positive solutions of second order impulsive boundary value problems by constructing the appropriate homotopy operator and applying the theory of fixed point index in cones. our results contain the conclusion when f ≥ 0 and J_k = 0([6]). Secondly, we discuss multiple positive solutions of the following impulsive boundary

其次，我们在§2.2中讨论了下面的脉冲微分边值问题多正解的存在性在这一部分的讨论中，利用不动点指数理论，在f既非超线性又非次线性的情形下，得到了两个正解的存在性定理，把文[7]的结果推广到脉冲微分边值

User errors include deleting the wrong rows because of incorrect values in a WHERE clause, updating rows with incorrect values, dropping the wrong index, and so forth.

常见的用户操作中的逻辑错误有：因为在 WHERE 子句中使用了不正确的值而删除了错误的数据行，将数据行更新为错误的值，错误地移除了索引等。

Methods: Based on the value added and the absorbance of the sample in the beer into lead series solution, increasing the absorbance values, enhance the sensitivity of the method, the direct determination of lead content in beer was performed.

依据吸光度值的加和性，在啤酒样品中加入铅标准系列溶液，增大吸光度值，提高方法的灵敏度，直接测定啤酒中铅含量。

In the string we give to eval we interpolate the value of $operator into the string.

在给eval的字串中，我们内插了变量$operator的值。eval执行并返回了我们给出字串的值，并且放到变量$result中。

On the basis of error processing interpolation theory of non-circular curve and data processing function of Excel, an accurate model of curved parts can be made in Solid Edge with establishing the point curve in Excel.

研究了复杂曲线零件的精确建模，在研究非圆曲线插值算法理论的基础上，利用Excel的数据处理功能，对函数进行误差处理插值计算，在Solid Edge环境中使用Excel创建点曲线的方法进行曲线零件的精确建模，探索出了一种Excel与Solid Edge的完美结合方法，通过凸轮零件精确建模的实际案例，示出了曲线零件建模的整个过程，给出了这种方法在分段曲线中的具体应用。

All the information is classified by setting local and action thresholds of those nodes from which a temporary cluster-head is selected for the fusion of all the data acquired, according to the similarity and isochronism of local field data.

算法中网络节点采用了基于事件驱动的响应式路由，通过设置节点的局部阈值和动作阈值，将网络中的信息分类，利用局部数据的相似性和等时性动态选举临时簇首，临时簇首对收集到的数据进行融合。

Do you know, i need you to come back

你知道吗，我需要你回来

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

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。