格点分布

LBIE, based on the local boundary equation, adopts the traditional moving least squares approximation which depends on only the values of the nodes in the domain of the problem or along its boundary. The whole process of integration is carried on over a local domain or its local boundary centered at the node in question. The local boundary equation can be rewritten to represent the values of the unknown function at the point of interest, and the essential boundary conditions can be directly and easily enforced by using the Green formula and the characters of the Dirac function.

它以局部边界积分方程为基础，采用移动最小二乘近似函数，从而只需要分布在问题域内及其边界上的节点的信息值，无需划分单元；整个积分是在以节点为中心的局部域及其边界上实现，所以不需要背景积分网格；借助于格林公式及Dirac函数的性质，将局部边界积分方程转化为所考虑点的未知函数的边界积分表达式，便于直接施加本质边界条件。

Distribution; the natural logarithm of this distribution isGaussian with mean 'mu' and sigma 'sigma'.

返回a浮点值与a日志正态分布；的自然对数的分布是高斯，平均'mu'和西格马'sigma'。

Random.lognormvariate Return a floating point value with a log normal distribution; the natural logarithm of this distribution is Gaussian with mean 'mu' and sigma 'sigma'.

返回a浮点值与a日志正态分布；的自然对数的分布是高斯，平均'mu'和西格马

The method is to add a term into the original singular kernel while it subtracts its analytical solution from the original equation. Since the singularity of Green's function can be eliminated by such a mathematical technique, shape function does not need to be supposed while solving the unknown. The calculation can be directly applied to the real shape of the object by taking the integral points distributed on the object as nodes that satisfy boundary conditions.

由於格林函数的奇异性经过数学上的技巧加以消除，因此当求解未知数时已经不需要再假设形状函数，即可直接使用物体真实的外型来做计算，也就是直接将物体上分布的积分点视为满足边界条件的节点。

The relationship between relative yield and relative water use is formulated,based on these data, a optimal irrigation scheduling under sprinkling irrigation condition can be made or the lower level of soil moisture in different growing stage might be teken as the indicator for the scheduling irrifgation in winter wheat.

喷灌条件下土壤水分、硝态氮空间变异特征研究：应用地统计学理论，以半方差函数为工具分析不同灌溉制度下，土壤含水率(0～60cm)和土壤中硝态氮在相应深度的空间分布，用各类模型拟合半方差图，在此基础上应用普通克立格技术估算未知点的土壤含水率，使用最优内插值法绘制土壤含水率和硝态氮在田间的空间分布等值线图。

objective in order to investigate the variety of the airborne fungi in jingzhou area and study the relationships between airborne fungi and allergic diseases.methods we surveyed the fungi sensitizing of air in jingzhou city from feb.1th,2007 to jau.31th,2008 to quantitatively observe the daily airborne fungi and count under microscope through one year.results the fungi spores were present through all year.more than 20 taxa of airborne fungi have been collected,among which the most common fungi were uredinales,ustilaginales,alternaria,etc.fungi spores were ralated with the season and weather,the most aboudant period in sring and summer.conclusion the airborne fungi were seen one year and were mostly allergenic.many of then had seasonal distribution.

目的：调查荆州市气传真菌的种类、数量变化及飘散规律，了解优势菌群与过敏性疾病的关系，为荆州市空气真菌过敏症的防治提供参考。方法：2007年2月1日至2008年1月31日，在荆州市设曝片点，每日换片，收集全年气传真菌样品，在显微镜下统计，定量获得每天及全年的真菌数量。结果：全年均可见真菌孢子，共收集真菌种类20多种，其中最常见的有链格孢、锈菌、黑粉菌等，其数量和季节、气候有关，以春季、夏季最多，秋季和冬季依次降低。结论：气传真菌全年均有分布并具有较强的致敏性，部分真菌具有明显的季节性变化。

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。