Another problem is time - delay being in the control of mr structure , hi this paper , one input of the fuzzy logic controller is the seismic acceleration that avoids some time - delay being in the control . but time - delay being in the structure still is n ' t solved , so the neural network technique is introduced to predict the seismic responses of structures to avoid it , and the bi - state neural network control and fuzzy full - state neural network control are proposed . 4 对于磁流变阻尼结构控制中的时间滞后问题，本文将地震加速度作为模糊逻辑控制器的一个输入，消除了控制中部分滞后问题；但仍存在着结构本身的滞后问题，对此引入神经网络对建筑结构的地震反应进行预测，并基于预测的动力反应和实测结构的动力反应的综合值作为模糊逻辑控制器的输入来消除建筑结构本身的时滞，并提出了双态神经网络控制和模糊全态神经网络控制； 4
We first present a number of desiderata for an xml - based query language , and based on this criterion , we introduce the syntax of a simple core ian - guage for semistructured data and then describe four extensions that have resulted in working prototypes . second , we present the algorithm for computing the result of a regular expression on data graph with cycles , the first - order interpretation of querying language for semistructured data , and explore structural recursion and bisimulation in semistructured data and propose an efficient and systematic way to computing a bisimulation between the two graphs . we also proposed and implemented a web querying system with database features 基于这些准则，对一个简单的半结构数据查询核心语言的语法提出了两方面扩充；给出了计算数据图中正规表达式的算法；对半结构数据查询语言的一阶逻辑描述、结构递归和数据图的双态仿真( bisimulation )等问题进行了研究，提出了一种判定数据图的bisimulation算法；在xml数据查询语言研究的基础上，设计并实现了一种具有数据库查询特性的web查询系统原型。
Secondly , combining the unified colored noise approximation and the functional analysis , the steady state distribution function is derived when both multiplicative colored noise and additive white noise are included in a bistable system with colored coupling between two kinds of noise . through the two - state theory , the expression of signal - to - noise ratio ( snr ) is obtained . the phenomenon of stochastic resonance is investigated 其次，我们综合运用统一色噪声近似和泛函近似的方法，推导了含有乘性色噪声和加性白噪声，并且两种噪声之间的耦合为色噪声的双稳非线性系统的定态分布摘要不同类型的色噪声对非线性光学系统的影响函数，然后通过双态理论求出系统信噪比的解析表达式，对系统的随机共振现象进行分析。
The studying results indicated that : three typical microstructures were abtained when ct20 alloy were annealed under different temperature , that is , equiaxed microstructure ( annealed at t1 , t2 and t3 ) , bimodal microstructure ( annealed at t4 and t5 ) and lamellar microstructure ( annealed at t6 ) . the effect of microstructure on rt tensile properties was weak , while at 20k was notable 研究表明： ct20合金冷轧态管材通过热处理可以获得三种典型的组织类型，即等轴组织( t1 、 t2和t3制度) 、双态组织( t4和t5制度)和片状组织( t6制度) ；显微组织对ct20合金的室温性能影响不大，而对20k下性能的影响则较明显。
In operating process of systems , besides the external randoml disturbance from the , also influence also comes from inside as parameter changing , in order to cope with this two kinds of uncertainties , a minimization variance control strategy based on innovations is proposed rind the analytic solution of this suboptimal control is obtained in this paper 摘要系统在运行过程中，除了受到来自外界的随机干扰外，还受到了诸如内部参数引起的不确定性的影响，为对付这两种不确定性，采用双态控制方法，提出了基于新息的最小方差控制策略，获得了该次优控制律的解析解。
These kinds of mechanical models which are used to analyze the mechanical abilities of mrd are compared . ( 2 ) the elastic - plastic seismic response analysis about the magnetorheological structure . the elastic - plastic seismic response analysis and compared analysis of the magnetorheological structure are carried with semi - active bi - state and foil - state control strategy when structure is simulated by three fold line stiffness retrograde model and mrd is simulated by sigmoid model , and corresponding conclusions are given ( 2 )磁流变阻尼结构的弹塑性地震反应分析对实际结构的恢复力模型按三线型刚度退化模型考虑，磁流变阻尼器采用作者所提出的sigmoid模型，对在半主动全态和半主动双态控制下的磁流变阻尼结构进行了弹塑性地震反应分析和对比分析，并得出了相应的结论。
