二-十进制

The performance of the final model was evaluated according to the Root Mean Square Error of Prediction and the Correlation coefficient in prediction and calibration sets.

研究了利用联合区间偏最小二乘法和遗传偏最小二乘法等筛选特征谱区的方法，通过交互验证法确定偏最小二乘模型的主成分因子数和筛选区间，并以预测均方根误差和相关系数R作为模型的评价指标。

By using the laser-lift-off technique followed by plasma etching process to roughen the surface, the VLEDs with n-GaN surface roughening has been fabricated.

另一部份，则是在垂直式氮化镓发光二极体的表面制造粗化的效果，以来增进光从发光二极体中萃取出的效率，利用乾式蚀刻将表面制造出粗化的效果，再利用标准的黄光微影制成技术，因此成功的制造出n型表面粗化的垂直式氮化镓发光二极体，至於出光强度的增强量会随者表面粗化情况的不同有著30%？

The characteristic vector of the real symmetric matrix should be found out, which is orthogonalized and normalized to a standard orthogonal base and is used as row vector to construct the transformation matrix P, so the P~(-1)AP can be made into diagonal matrix.

实对称矩阵A经相似变换P-1AP可化为对角矩阵，在x =Py 下，不一定能化A的二次型为标准型；应寻求对称矩阵A的特征向量，将其正交化并单位化作为标准正交基，作为列向量构造变换矩阵P，可使P-1AP=Λ为对角阵，在x =Py 下，要将二次型化为标准型，且二次项系数即为对角阵Λ主对角线上元素。

The results show that the second - order derivative peak potential of 2,4 - dihydrobenzophenone is - 1.20 V

实验表明，在pH4.30的B—R缓冲溶液中，2，4-二羟基二苯甲酮的二阶导数峰电位为-1.20V

In the present work, the compensation mechanism for secondary electron emission has been investigated for the accurate measurements of high-energy proton beam.

根据高能带电粒子在金属表面诱发二次电子发射理论，对高能质子束流强度测量的二次电子补偿原理进行了研究，设计了二次电子补偿结构。

These results proved that the secondary electron emission yield of insulator measured with the device is credible, but the yield of MgO is smaller than the normal yield of MgO.

这表明该装置测量的绝缘体二次电子发射系数是可信的，但用磁控溅射法制备的MgO的二次电子发射系数较低，这可能是制备MgO时引入了过多的杂质在MgO二次电子发射体里面所引起的。

The constraints of Secondary Voltage Control are also discussed. Based on these, the relevant control strategy is proposed.

从这一控制目标出发，建立了相应的二次性能指标，详细分析了二次电压控制的各种约束条件，在此基础上确定了具体的二次电压控制策略。

Any secondary winding of transformer shall not be allowed open circuit; otherwise there is a danger of high voltage.

5.5.6.3互感器的任何一个二次绕组均不许开路否则有高压危险，如果某一个二次绕组暂时不使用，则必须将二次接线端子短路。

Freshman low income students in dealing with the problems on the score was significantly lower than sophomore, junior and senior low income students, and the self-condemned, was significantly higher than that of sophomore, junior and senior poor students; senior low income students SCL-90 in the interpersonal sensitivity, anxiety, hostility, paranoia and mental illness, as well as scores were significantly higher than those on the junior poor students, and obsessive-compulsive disorder in the sophomore and senior poor students were significantly higher than those freshman students , on the whole, a senior health poverty level of the mental health was significantly lower than the other three-year low income poverty students.

大一贫困生在应对方式解决问题上得分显著低于大二、大三、大四的贫困生，而在自责因子上显著高于大二、大三、大四贫困生；大四贫困生在SCL-90的人际关系敏感度、焦虑、敌对、偏执、精神病症以及总分上均显著高于大三贫困生，另外在强迫症上大二、大四贫困生均显著高于大一学生，总体上大四贫困生的心理健康水平显著低于其他三个年级的贫困生。

A new multiclass SVM algorithm based on binary tree was introduced on E-mail filtering. It could convert multiclass problem to binary classification by constructing binary tree. The idea of clustering first and classification later was adopted, and the largest similarity between testing sample and sub-category center and the separation measure of sub-categories were calculated, in oder to construct the optimal class hyperplane of decision-making nodes.

提出一种基于二叉树的多分类SVM算法用于电子邮件的分类与过滤，通过构建二叉树将多分类转化为二值分类，算法采用先聚类再分类的思想，计算测试样本与子类中心的最大相似度和子类间的分离度，以构造决策节点的最优分类超平面。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。