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In order to implement the fault diagnosis of Chongqing light-rail's screws,a new method of screw fault diagnosis based on Support Vector Data Description is proposed,which can found one-class classifier with normal screw samples only and doesn't need feature extracting.The method solves the difficult problem of lacking fault screw samples.

为了实现对重庆市轻轨轨道梁锚固螺杆的故障检测，提出了一种基于支持向量数据描述的锚固螺杆故障诊断方法，该方法只需要正常螺杆样本，且不需要对原始数据进行特征提取，就可以建立单值分类器，解决了缺少故障螺杆样本的难题。

It was found that there were some differences between the amplified bands of Liquidambar formosana which grew in the place of the altitudes from 100 m to 300 m and in the place of the higher altitudes from 400 m to 700 m, while there was no obvious difference among the amplified bands of Liquidambar formosana's samples (3 samples were from shade conditions and 3 from sunlight conditions) which were from the same altitude (710 m).

结果发现：生长於海拔100~300 m的枫香的扩增谱带与生长於高海拔(400~700 m)的略有差异，而在相同海拔(710 m)的3个阴性条件样品和3个阳性条件样品间，其扩增谱带没有明显差异。

5 Formula: x 1: sample lixivium the content of zinc, mg/litre; m determination of samples taken lixivium zinc,μ g; V determination of samples taken, mL liquid immersion.

8.5 计算式中：X1——样品浸泡液中锌的含量，mg/L； m——测定时所取样品浸泡液中锌的质量，μg； V——测定时所取样品浸泡液体积，mL。

Methods Samples of Cerinate Porcelain Veneers were prepared in different thickness(0.5mm、0.75mm、1.00mm)and different Vita shade(A1、A2、A3).Luting resins of different colors were used to lute these samples on teeth surface with different preparation depth.Colorimeter was used to measure the L*a*b* of the teeth surface without preparation and after covering with Cerinate Porcelain Veneers.

制作不同颜色（A1、A2、A3色）不同厚度（0.50mm、0.75mm、1.00mm）的Cerinate瓷贴面，将其用不同颜色的粘结树脂粘固到对应的牙齿预备面上，用测色仪分别测量牙齿预备前及粘固了Cerinate瓷贴面后牙面的L*a*b*值，比较两者的差异。

The additives are proved to be chemicals similar to a copolymer of styrene and maleic acid and stearic acid or its obtained from samples and the residues of chemically treated samples.

通过对原样品及酸化、碱洗样品的红外谱图分析和TGA分析，确定了相应的添加剂为类苯马聚合物和硬脂酸或其衍生物。

In this paper,the new method is presented to determine the number of hidden nodes of RBF neural networks,it makes use of the whole inputting and outputting information of training samples to establish similar matrix of samples,then to determine the number of hidden nodes of RBF neural networks by maximal matrix element method.

利用训练样本输入输出全部信息建立样本间的相似矩阵，然后采用最大矩阵元法来确定RBF神经网络隐层节点数。

The thermal stability and specific surface area of the samples are improved by using mesitylene and phosphoric acid .Calcining temperature can affect the pore size and morphology of the samples.

经500℃焙绍5h 后，用磷酸处理的样品仍未出现晶相转变的迹象，表明经均三甲苯和磷酸处理后，样品的热稳定性和比表面积均有一定程度地提高。

The results showed that the virus isolation and identification could generate considerably reliable results but the procedure was complicated and costed long time; microtomy fluorescent antibody detection was fast, but the specificity was low and needed to exclude the false positive from the results. Sandwich ELISA detection combined the merits of the former two methods, but it generated the false negative results when the samples were in bad preservation. Compared with the others, RT-PCR was fast, high sensitive and especially useful for detecting the CSFV directly from the samples. The specificity could be raised by using the nested-PCR to detect the CSFV from the simples, especially when the simples were in bad preservation.

结果显示，病毒分离鉴定法准确性较高，诊断比较容易，但存在试验步骤繁琐，所需时间长的缺点；荧光抗体检测法所需时间较短，但需要经验比较丰富人员来判定结果，且存在假阳性结果，特异性比较差；RT-PCR检测法具有快速、敏感等优点，特别是样品保存不理想时更有价值，利用套式PCR可以提高检测的特异性；夹心ELISA检测法具有快速、敏感等优点，但在样品保存不理想时会出现假阴性结果。

In 35 milk tooth samples permanent and milk tooth samples weredivided into 5 dose groups each, and irradiated with 60Co γ ray at dose rate of 0.48 Gy/min. Radi-ation doses of 5 groups were 0.30, 0.50, 1.00, 3.00 and 5.00 Gy, respectively.

将恒牙和乳牙各分成4和5个剂量组，用60Co γ射线照射各组样品，剂量率为0.48 Gy／min，各组累积剂量分别为0.30、0.50、1.00、3.00和5.00 Gy。

Mixed saliva and pooled plaque samples from the smooth surfaces of teeth were collected for microbiologic analysis before administration (baseline~ day 0).. during treatment (days 7.. 14 and 21) and after withdrawal of the agents (days 28~ 42 and 56) and plaque index were recorded. Microbial cultivation were performed by serially diluting the samples with PBS solution and cultivating the aiquots on Mitis Salivarius Agar and MS supplemented with bacitracin for Oral streptococci and Mutans streptococci respectively. The plates were incubated at 37~C under microaerophilic condition(90%N2,10%CO.,) for 48 hot:rs. The number of colony-forming unit per plate was counted and the percentage of Mutans Streptococci per Oral streptococci in dental plaque were determined.

使用前、使用中1、2、3周及停止使用后1、3、5周分别记录菌斑指数并收集唾液及光滑面集合菌斑样本，应用MS及MSB培养基微需氧环境培养检测唾液和菌斑中口腔链球菌属细菌及变形链球菌的菌落形成数，分析各组使用药物前后唾液中变形链球菌的改变及菌斑中变形链球菌在口腔链球菌属细菌中百分比的变化以及变化的延续性。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。