A three element model of lumped parameter based on the statistic data of Weible 's symmetric model and on the reference anatomic figures of the bronchial tree of the lungs has been proposed using the fluid network theory .

在Weible的人体肺支气管树统计数据的基础上，参照肺解剖图形，运用流体 网络理论建立支气管树在前5～7级为不对称分叉，后面的分级为 对称分叉的三参数集中参数模型。

Due to median filtering function of binary signals is being a symmetric Boolean function median filtering should be implemented by a two-layer feedforward neural network .

二元信号的中值滤波函数是一 对称布尔函数，可以用神经 网络实现中值滤波。

As is well known the traditional RFID authentication based on symmetric cryptography does not fit the large scale RFID network . But the limited computation ability and energy make it difficult to apply traditional public-key cryptography to RFID authentication .

但是RFID在能量和计算资源上的限制使人们很难利用公钥密码的优势来解决RFID认证问题，而 对称密码技术又很难适应大规模RFID 网络认证需求。

In this paper Author uses finite element model to analysis the water supply network of indoor fire hydrant . The establishment of the network as a whole matrix of equations symmetric positive square root of the method of hydraulic pipe network balance equation Draw the hydraulic elements .

本文采用有限元法分析室内消火栓给水管网的数学模型，建立管网整体矩阵，应用 对称正定方程组的平方根法求解 管网水力平衡方程，得出各项水力要素。

Symmetric Neural Network : Asymptotic Stability and Learning

对称神经元 网络：渐近稳定性和学习

On Prediction of Cutting Force Based on Symmetric Fuzzy and Radial Basis Network

基于 对称模糊数及径向基 网络的切削力预测研究

A symmetric ternary logic based multi - valued learning network

一种基于 对称三值逻辑的多值学习 网络

In this paper two models for cutting force are proposed that is fuzzy prediction model based on the symmetric fuzzy number and neural prediction model based on the radial basis network .

提出基于 对称模糊数的切削力模糊预测模型以及基于径向基 网络的切削力神经预测模型。

Without assuming the symmetric properties of interconnecting structure the stability of a class of the Hopfield neural network model with time delays and asymmetric interconnecting structure is considered .

文中放宽了对Hopfield神经网络的互连结构必须为 对称的要求，考虑一类具有时滞的、且互连结构为非对称的Hopfield神经 网络的稳定性问题。

This multiplier consists of a symmetric passive resistance network and two multijunction thermal converters .

这种电压乘法器采用了和、差、平方差的工作原理，由 对称的无源电阻 网络和两个多元热电偶组成。

Symmetric generalized eigenvalue problems arise in many science computing and engineering applications such as dynamic analysis of structures structural vibration electronic structure calculations quantum chemistry circuit network chemical reaction macro-economical balance .

广义特征值问题在科学计算与工程应用领域有着广泛的应用，例如，结构动态分析、结构振动、电子结构计算、量子化学、电路 网络、化学反应、宏观经济平衡等。

The main results are as following : 1 . A typical interworking network can be constructed with the core network WCDMA and the accessing networks WiMAX and WLAN . Considering security and efficiency issues a roaming authentication protocol based on symmetric cryptographic algorithms was proposed for that network .

本文主要成果如下：1.针对以3G 网络为核心网络，采用蓝牙、 WiMAX和无线局域网为接入网络，所构成的异构融合网络中认证协议的安全和效率问题，提出了一种高效的漫游认证协议。

From the angle of scalability and stability of computing ability this paper gives the functionally distributed and symmetric architecture of server clusters for network applications and discusses the various cluster architectures for implementing the fault tolerance of storage components .

本文从处理能力可扩展和容错的角度，给出了功能分布和 对称 的 网络应用服务器集群结构，并讨论了实现存储部件容错的各种集群结构。

This scheme utilizes ECC algorithm between cluster head nodes to enhance network security and uses symmetric key between cluster head nodes and nodes to reduce network overhead .

该方案通过在簇头节点间采用适合传感器网络的椭圆曲线 非 对称方案增强网络的安全性，同时在 非簇头节点与簇头节点之间采用 对称密钥降低 网络的能量消耗。

QSAR of a symmetric organic phosphate insecticide was studied by combining the advantage of improved genetic algorithm ( IGA ) and the error back propagation algorithm ( BPA ) for effectively training multilayer artificial neural network ( MAN ) .

结合改进的遗传算法（IGA）和误差反传算法（BPA）训练人工神经元 网络，用以对三 元 不对称有机磷构效关系进行研究。

This paper presents a method for analysing the mean throughput of a symmetric FDDI network with saturated synchronous stream which discusses the relationship between throughput and offered load the multiple priority symmetric system respectively .

本文提出一种在同步流饱和状态下 对称FDDI 网络平均吞吐量分析方法，分别讨论了在无优先级对称系统和多个优先级对称系统中吞吐量与承载信息量之间关系。

A new symmetric broadside - coupled coplanar waveguide balun has been derived on the basis of generalized network model for coupled lines combined with the quasi - static analysis method of symmetric broadside - coupled coplanar waveguide .

本文介绍了一种新型 对称宽边耦合共面波导巴仑。它是基于一般耦合传输线的 网络模型结合对称宽边耦合共面波导理论导出的。

And it gived a user key online periodically update mechanism to achieve the key dynamic management . ( 2 ) After studying the secret sharing techniques based on symmetric bi-variate polynomial a fully decentralized Ad-hoc network key management scheme was proposed .

通过研究 对称二元多项式门限秘密共享，提出了一种全 分布式Ad-hoc密钥管理方案。

Further more we add a symmetric key k used for conversation in this scheme which make the users be able to encrypt the information transmitted on network after they have passed the mutual identity authentication .

而且在认证过程中，加入了用于会话的 对称密钥k，认证双方在通过相互的身份认证以后，可以用此 对称密钥来加密用户在 网络上传输的信息。

Finally aim at the axially symmetric well flow in fracture network and the drainage conduit problem in arbitrary distributed fracture system applied computations of the model were conducted thus verified the effectiveness of the model and its algorithmic routine .

最后，针对裂隙 网络中的轴 对称井流和任意分布裂隙系统中的排水管道问题对模型进行了应用计算，验证了模型及其算法程序的有效性。

Application of Solving the Large Sparse Symmetric Equations in the Gas Network Analysis

高阶稀疏 对称方程组在燃气 管网计算中的应用

At the port the network is divided into a symmetric asymmetric network and a fault simulation network and according to the circuit equations of the virtual port the equations for calculating short-circuit current is derived .

在虚拟端口处将网络分成 对称 网络和故障模拟的不对称网络两部分，并根据虚拟端口处的电路方程推导出短路电流的计算方程。

Because the loop pipe network is a symmetric pipe network leakage nodes are selected a middle node and a confluence node .

由于所研究的环状管网为 对称 管网，因此，漏水节点选取的是 管网的中间节点和一个汇流节点。

Topologically Equivalence of Asymmetric and Symmetric Omega Network

自由空间非对称与 对称混洗 网络的拓扑等价

Because only the triangle matrix information is encoded in the symmetric matrix that describes all possible changes of the undirected network the length of coding string is moderate and there is no limitation of edges for modeling the whole evolution from the tree to complete graph .

该编码方法只记录 对称 邻接矩阵中三角阵的信息，反映了无向 网络的所有可能变化，因而编码串长度适中， 网络边数不需限制，可以模拟 网络从树到完备图的整个演化过程。

A study has been made of the power divider which is a lossless even symmetric and reciprocal network .

本文研究的一分为二功率分配元件是无耗偶 对称互易 网络。

Added a capacitor C_4 respectively two initial twin T network s in the antialias filter of DFS-V seismic acquisition system greatly differ from symmetric twin T network in transfer characteristic .

DFS-V数字地震仪去假频滤波器的前两级双T网络中，由于C4电容的存在，使得 对称双T 网络的传递特性发生了重大变化。