聚点

A generalized Gaussian Laplacian eigenmap algorithm based on geodesic distance is proposed,which incorporates geodesic distance and generalized Gaussian function into the original Laplacian eigenmap algorithm.GGLE algorithm can adjust the similarities between nodes of neighborhood graph,and can preserve the different degrees of local properties by using super-Gaussian function,Gaussian function or sub-Gaussian function.Moreover,GGLE can avoid the deficiency of Euclidean distance by using geodesic distance when neighborhoods of data points are enlarged for preserving more neighborhood relations.Experimental results show that the global low-dimensional coordinates obtained by GGLE have different clustering properties and different degrees of preserving local neighborhood structures when different generalized Gaussian functions are used to measuring the similarities between high-dimensional data points.(3) An ensemble-based discriminant algorithm based on GGLE is proposed.

该算法将测地线距离和广义高斯函数融合到传统的拉普拉斯特征映射算法中，可以调整近邻图结点间的相似度，通过选择超高斯、高斯或者次高斯函数来实现不同程度的近邻局部特性的保持；而且当需要保持更多的近邻关系使得数据点邻域增大时，采用测地线距离可以避免欧氏距离度量不合理的缺陷；实验结果表明在用不同的广义高斯函数度量高维数据点间的相似度时，局部近邻结构保持的程度是不同的，GGLE获得的全局低维坐标也呈现出不同的聚类特性。

Each spot contains a high concentration of an oligomer that is complementary only to its gene.

每个点含有一种高浓度的寡聚物，它只与对应的基因互补。

She made a stream of fire flare from his shield and helmet like the star that shines most brilliantly in summer after its bath in the waters of Oceanus- even such a fire did she kindle upon his head and shoulders as she bade him speed into the thickest hurly-burly of the fight.

她点燃不知疲倦的火花，在他的盾牌和帽盔上，像那颗缀点夏末的星辰，浸浴在俄开阿诺斯河里，冉冉升起，明光烁烁，使群星为之失色。就像这样，雅典娜燃起了火焰；在他的头顶和胸肩，催励他奔向战场的中间，兵勇们麇聚冲杀的热点。

The action point of limiting force on retaining structure is not always at 1/3 of the height of retaining structures, but varies with the friction angle δ between soil and retaining structures, the type of limiting state, the failure mode, the internal friction angle φ, and cohesion c of the soil, ranging from 1/5 to 2/3 of the height of retaining structures.

3土体极限荷载P〓的作用点位置不象Coulomb理论中假定的那样，总是作用在墙高的1／3处，而是与土体极限状态的类型、土体的破坏形式、墙土之间的摩擦角δ、土体的内摩擦角φ和粘聚力c有关系，在挡土结构物高度的1／5到2／3的范围内取值。

The paper presents a new method for short-term load forecasting, which applies cluster analysis technique of pattern recognition principle to calculate the similar coefficients between the future day and past days, then chooses the most similar days according to these coefficients and uses linear extrapolation method to predict the load of future day.

短期负荷预测是各供电分公司调度部门的基础性工作，96点日负荷预测采用模式识别中的聚类分析方法，对影响负荷的不同相关因素建立历史映射数据库，在不同日之间计算相关度而得到相似日，并在相似日的基础上采用线性外推法得到预测日的对应负荷。

Moreover,the flocculation settlement curves of the lignin locution were determined at deferent temperatures under the condition of the polyaluminum ferric chloride flocculation,the sense of the inflexion point of the curve was discussed,and the acaivation energy of the colloid solution flocculatiov was eltimated,which corresponds to the potential-energy between sol particles accordin.

用传统的化学动力学方法讨论了温度对絮凝过程的影响，测定了木质素溶液在不同温度时被聚氯化铝铁絮凝的絮凝沉降曲线，讨论了曲线上拐点的意义，并估算出该胶体溶液絮凝时的活化能，它相当于DLVO理论为胶体粒子间的势能能垒φm，实验得出φm≈16.5k

In the paper the effects and main differences of maleic anhydride and acrylic acid in the synthesis of polycarboxylate superplasticizers are analyzed according to their respective characteristics and technical requirements for synthesis.

根据马来酸酐与丙烯酸各自的特性和聚羧酸盐减水剂合成的技术要求，分析了它们在合成过程中的作用和主要差别，并概述了马来酸酐在合成中的应用情况，最后提出了马来酸酐在合成中应用的几点建议。

The authors present a targets detection method based on the hierarchical clustering which constructs the similarity measuring function according the movement rule of stars and targets,finds the optimal separating hyperplane and classified amount by means of finding the inflexion of error square sum function,then distinguish the targets from stars and noises by two level hierarchical clustering.

提出了基于层次聚类的空间弱小目标检测算法，以星点到参考恒星之间的距离变化为依据，根据恒星和目标的运动特性构造相似性度量函数，通过寻找误差平方和曲线拐点的方法寻找最优分类曲面和分类个数，最后以两层复合分类将恒星、噪声和目标分离。

Music and drama are often popular and it is very easy to get some mates together and start something up.

音乐和戏剧总是很受欢迎，有兴趣的人聚在一起做点什么，也并非难事。

In this paper,the numerical methods for the LS equation of three-dimensionaldetonation wave are introduced.

本文提出了在三维直角坐标系中爆轰波传播LS方程离散化方法，建立了相应的差分方程，研究了对不同形状炸药在多种起爆形式(点、线、面、散心、聚心)下初值条件的设定，以及各种边界条件的处理方法。

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。