以...为基础

A safety level-based evacuation scheme of subway station is presented in this paper, with performance-based evacuation design combined. According to the evacuation characteristics of subway station, accidental evacuation time and available safety evacuation time under smoke control have been classified into three safety levels respectively. Then four safety levels have been proposed based on them. A flow chart of safety evacuation scheme of subway station under fire was then proposed based on the guidelines of safety evacuation and code for design of metro.

针对地铁车站人员疏散特点，以人员安全疏散准则和现行地铁设计规范为基础，融合了火灾安全工程学的性能化人员疏散设计思路，分别将事故疏散时间和烟控可用安全疏散时间划分为三个等级，综合形成了四类人员疏散安全等级标准，并在此基础上提出了框架性的基于安全等级的地铁车站火灾人员安全疏散方案设计流程。

In recent years, some derived yeast two-hybrid systems have been established, including yeast two-hybrid dual bait system, reverse two-hybrid system, membrane-associated two-hybrid system (SRS, TOPIS and split-ubiquitin base two-hybrid system) and transcriptional factors-associated two-hybrid system(RTA system and PolⅢ based two-hybrid system), which promise to overcome some limits and improved the sensitivities of the original yeast two-hybrid system.

十余年来，随着酵母双杂交迅速推广，不断涌现出一些衍生系统，其中包括酵母双杂交的二元诱饵系统，逆向双杂交系统，非转录读出特点的双杂交系统（如Sos蛋白招募系统、PI3K介导的靶蛋白识别系统和断裂-泛素为基础的双杂交系统）以及转录激活因子与其相关蛋白之间的相互作用的双杂交系统（如以polⅢ为基础的杂交系统和RTA系统）等。

First, based on the measurements of absorption cross-section, the absorption characters of the main polluted gases in flue gas were deeply studied, and found that SO_2、 NO、 NO_2、 NH_3 had a character of approximate periods absorption at some wave band, which is a good chance of a new measurement introduced. Secondly, the factors about absorption cross-section of the gases measured, which affect on the measurement precision of DOAS, is studied deeply. The influence of pressure and temperature on absorption cross-section was given special research, and the compensated measures were given to the gases based on the character of the gases. Thirdly, in practical measurement, it must have been satisfied that the monochromator was consisted with the reference spectrum, which was based on absorption cross-section. In order to satisfy the consistency, the technique of reversion in the image was introduced, the reversions of spectrums were realized with wiener filter and noise elimination based on wavelet transform.

首先从吸收截面的测量入手，对烟气中主要的污染气体SO_2、NO、NO_2、NH_3的吸收特性进行详细研究，发现这些气体在局部区域具有准周期吸收特征，这为引入新的测量方法提供了契机；其次，对决定DOAS测量精度的被测气体吸收截面的诸多问题进行了深入研究，重点研究了压力、温度对被测气体吸收截面的影响，并针对被测气体的特征提出了相应的修正措施；再次，在实际测量中，要求所使用的光谱仪必须与以吸收截面为基础的参考光谱相匹配，为了满足匹配这一条件，文中将图像复原技术引入到光谱复原，使用维纳滤波和小波消噪实现了光谱的复原，将复原后的光谱与所使用光谱仪的仪器函数卷积，即可实现；最后，在对DOAS测量原理详细分析的基础上，对传统的最小二乘—差分吸收光谱法进行了详细的阐述，通过实验证实两点：1。

Meanwhile, in the course of constructing knowledge base of the expert system, it adopts judge trees to express the knowledge, on the basis of case and uses algorithm ID3 to prune the judge tree to form producing formula.

同时在构造专家系统知识库的过程中，采用了以实例为基础的判定树式知识表示，并用ID3算法对判定树进行剪枝构造产生式规则，为建立专家系统的核心奠定了基础。

Aimed at the characteristics that design conditions of the foundation structures of offshore long-span-bridges are different from that of common bridges, the partial factors, the target reliability indices and the factors of wind load in different design fields were all analyzed. Then, three levels of target reliability indices which are 1.5, 2.0 and 2.3 respectively, and the corresponding factors of frequent value and quasi-permanent value of live loads based on JCSS model code with JC method were suggested.

针对大型跨海桥梁基础结构正常使用极限状态的设计条件不同于一般桥梁的特点，对各类不同设计领域的设计分项系数、目标可靠度指标及风荷载系数进行了分析和比较；然后以JCSS模式规范为基础，通过可靠度计算的验算点法，经过多次试算，建议了目标可靠度指标分别为1.5、2.0和2.3的三级可靠度水平及相应的可变荷载频遇值系数和准永久值系数。

Based specialized, generalized and visualized basic geographical information, it collects many information, such as detected video, traffic control signal, traffic peccancy, policemen distributing, traffic target, stopping position and capacity, to general manage and analyze. The primary visualized decision information including traffic flux, bus speed, traffic density, accident of real-time cities main road, are provided to traffic manager so that they respond rapidly, and some of them could be transformed to traffic inducing screen through network.

系统设计目的：建成一个基于网络环境的实时的、可视化的交通管理地理信息系统服务平台，它以专业化的、综合性的、可视化的基础地理信息为基础，综合集成现有系统，将监控视频，交通控制信号、交通违章监控等实时动态信息以及警力分布、交通标志、停车场位置及容量等各种数据采集起来，进行集中管理和分析，为交通管理者提供实时的城市各主要道路的交通流量、车速、交通密度、事故发生情况等可视化初级辅助决策信息，以便交通管理人员做出快速响应，也可将部分信息通过网络主动发布到交通诱导屏。

Taking the modified GEM model as the research model, we construct a three-class evaluation index system of industrial clusters competitiveness which contains 33 indexes including the qualitative indexes and the quantitative indexes.

本文改进了以波特的钻石模型为基础的&基础-企业-市场&模型，以此为分析框架，构建了三级共33个指标的产业集群竞争力评价指标体系，其中包括定性指标和定量指标。

There are also several branches affiliated to the department now which include the Teaching and Research Section of Naval Architecture and Ocean Engineering, the Institute of Naval Architecture and Ocean Engineering (a first rate design institute in Guangdong Province), the Ship Model Towing Tank, the Marine Material Test Center, the Laboratory of Harbor and Channel.

本专业是以数学、力学、机电为基础，全面应用信息技术从事船舶与海洋工程结构物及相近领域的设计、研究、制造、规划、经营与管理等的工程学科，本专业长期以来奉行&厚基础、严要求、重能力、强适应&为办学宗旨。

According to the four highway engineering geological subarea of the loess region, based on a great deal of indoor experiments and existing engineering data, the main physical and mechanical property index of each loess area were re-counted, and the district variational regulation of the loess physical and mechanical property were studied in order to get the characteristic parameter of the loess soil property index providing precious foundation data for the highway engineering construction of the loess region.

本文按照黄土地区的四个公路工程地质分区，以大量的室内试验和已有工程资料为基础，重新统计了各区黄土的主要物理力学性质指标，研究了黄土物理力学性质的区域变化规律，得出黄土土性指标的特征参数，为黄土地区的公路工程建设提供了宝贵的基础资料。

It is part of National Forest Resource Management Information System.

它以森林资源二类调查数据为基础，结合县级系统的实际需求，实现了县级森林资源数据的动态管理与分析，为省级、国家级森林资源管理信息系统进一步的实现奠定了基础。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。