无结构的

Based on the analysis of the results of these two cases, the rule of element's σ, at different position is presented, and it shows that the steel panel can effectively reduce the maximal σ, of the element adjacent to the steel panel, and can postpone the arriving time within the simulation time. At the same time, the simulation reveals that the boundary effects don't affect the spalling in the similar structure presented in this paper.

通过对两种情况下的结果分析，揭示了混凝土不同位置处单元σ值的时程规律，得到了在计算时间内钢板的存在能够有效地减小相邻混凝土单元的最大拉应力，并延长其出现时间；同时得到了在类似研究的工程结构中，边界效应对混凝土层裂现象无影响。

After discussing the structural conditions of the existence of the active network solutions, the state equations in normal form over F of electrical network which are suited for studying the character of network structure are derived. If there is no loop containing only capacitor and independent voltage sources, and if there is no cut-set containing only inductors and independent current-sources, both matrix A and B in ?

在探讨了有源网络解存在的结构条件下，推导了适合研究网络结构特征的多元有理函数域上电网络的范式状态方程：如果不存在仅由独立电压源和电容器构成的回路，且不存在仅由独立电流源和电感器组成的割集，则无论是有源网络还是无源网络，在网络的范式状态方程？

Serum and Ig in serum of the three sturgeons can react with serum of rabbit anti each of the three sturgeons' Ig, but cannot react with serum of rabbit anti Ig of carp Cyprynus carpio. The Ouchterlony results show that Ig of sturgeons are immune homologous in structure and sequence, but have little immune homologous characters compared with Ig of high-classification Osteichthyes such as carp.

免疫沉淀反应的结果显示，3种鲟鱼的血清及其Ig与相互之间的兔抗Ig血清有免疫沉淀反应，但与兔抗鲤Ig血清无免疫沉淀反应，这表明3种鲟科鱼类的Ig在结构和序列上是较为相似的，而与鲤鱼等高等硬骨鱼类的Ig存在较大的差别。

Similar tree topologies were recovered by both MP and ML trees generated based on unweighted analysis using PAUP*. The Eublepharidae and Gekkonidae were monophyletic.

构建的MP树和ML树有相同的拓扑结构，提示睑虎科和壁虎科都是单系的，刺尾虎亚科+具攀瓣的絮趾虎类与鳞脚虎类+无攀瓣的絮趾虎类为姐妹群关系。

Based on theory of structural dynamics and differential equation, the requirement of state complete observability is infered related to vibration modes, which is more acceptable for engineering than the counterpart of modern control theory related to rank of matrix in algebra.

这一条件较之现代控制理论中以矩阵秩的形式给出的相应条件更易为工程实际所接受，对测量装置的位置设置提供了理论依据，并指出无干扰驱动项的经典的Luenberger观测器对结构控制是不适宜的。

Complex networks theory is such a result that issue from the observation to relative simple topology structure of networks in different domains. And, recent several years, many research show that many complex systems possess the scale-free property, that is, the mass of nodes have only a few connections but abundant connections are possessed by minority nodes.

复杂网络理论是对不同领域的相对简单的网络拓扑结构进行观测的结果，而且，近几年的研究发现很多复杂系统均拥有无标度特性，即大部分节点只有少数几个连结，而某些节点却拥有与其他节点的大量连结。

It has such specialities as retractility, robustness, expansibility and so on, So it opens out the developing trend and feature of new generation intrusion detection systems.

所提出的Cyber-IDS可以将不同类型的IDS作为入侵检测代理结合起来，构成一个无中心、分层次的树形层次结构，实现信息的层层融合、层层精简、层层提高，具有很好的可扩充性、可伸缩性、抗攻击性等特点，从而揭示了新一代IDS的发展趋势和特点。

By applying the technology of multisensor information fusion to distributed intrusion detection system, the model framework presented in this paper to form a tree-shape hiberarchy that has no center but delamination, so as to realize information fusion, information reduction, information abstract layer upon layer, It has such specialities as retractility, robustness, expansibility and so on, So it adapted for Internets secure response in the myriad heterogeneous network environment and satisfied secure requirements from monitor or evaluation.

此外，在构建的框架模型中，利用多传感器信息融合技术在分布式入侵检测系统中，构成一个无中心、分层次的树形层次结构，实现信息的层层融合、层层精简、层层提高，具有很好的可扩充性、抗攻击性等特点，实现对网络安全状况的监控和评估，以适应大规模异构网络环境的需求。

It is interpreted that the correlation structure of the allelic polymorphism data contains null correlations introduced by "closure" and the statistical distribution of the data is not normal because of its constant row sum,which resulted in great difficulties in analyzing the data with traditional multiple linear statistical methods such as principal component analysis,factor analysis,cluster analysis and canonical correlation analysis.

长期以来，对于多维基因多态性数据的多元统计分析，如计算遗传距离时所用的聚类分析、分析群体遗传结构时所用的主成分分析、因子分析和典型相关分析等，一直应用为无约束条件数据而设计的经典多元线性分析方法，并没有注意基因多态性数据的"闭合效应"所带来的问题。

Histological and cellular research on rachis of healthy and inoculated spikes of the mutants at the different stages showed that, structure and developed tendency of cortical sclerenchyma tissue and green tissue and fibrovascular tissue in the rachis were alike between the mutants and their donors at anthesis stage, which also showed no apparent difference in the inoculated spikes'rachis between the mutants and their donors, major difference was that the mutants had less hyphae number than their donors.

对抗赤霉突变体的健康穗及接种穗的穗轴细胞组织学研究结果显示，抗性突变体与其感病亲本的花期健康穗轴在皮层厚壁组织、绿色组织及维管组织结构上基本一致，不同发育时间的变化趋势也一致；接种处理后，抗性突变体与其感病亲本的穗轴组织在各方面的变化趋势相一致，变化量也无明显差异。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。