A range [ a, b) or ( a, b] is half-open in that it is "open" at one end ( doesn't include its limit point) and "closed" at the other ( does include its limit point). 区间[a,b)或(a,b]是半开的,其一端是“打开的”(不包括它的极限点),另一端是“关闭的”(包括它的极限点)。
The mathematical property of the limit point in kinematic path is clarified. 阐明杆系机构运动路径极值点的数学特征。
Rapid Prediction of Stability Limit Point in Power System Structure Preserving Model 快速预测电力系统结构保持模型稳定极限点
The tangent stiffness matrix is obtained from the engineering strain and the principle for determining the limit point and bifurcation point is given. 由工程应变推导出几何非线性的切线刚度矩阵,并给出判断分歧点与极限点的准则,最后用一数值例题说明该方法的分析过程。
Limit Point Criteria for Two Classes of Discrete Hamiltonian Systems 两类离散哈密顿系统极限点型的判定
This can be a limit point to decide the maximum gain for the selective amplifier. 这可以作为确定选频放大电路极限放大倍数的依据。
Nonlinear Limit Circle/ Limit Point Criteria for Second Order Damping Differential Equations 二阶阻尼微分方程的非线性极限点型和极限圆型的分类问题研究
Static Calibration of Nonlinear Transducer Based on the Limit Point 非线性传感器静态特性评估的极限点法
Hence, if the sequence { x_k} generated by this method does not terminate finitely, then every limit point of the sequence is a stationary point of the problem. 由此算法产生迭代序列{xk},本文证明了如下结果:若算法不是有限终止,则每个极限点都是问题的稳定点。
Numerical Analysis of Solution Branches of Multiple Limit Point N重极限点解分支的数值分析
It is suggested the instantaneous strain rate at the limit point of stress must be replaced by the mean strain rate in elastic field. From this point of view, a bottle-neck problem in the speed switching of computer controlled testing machine was sovled successfully. 提出了用弹性阶段平均应变速率代替应力极限转换点的瞬时应变速率的观点,成功地解决了微机控制试验机速率切换控制中关键性问题。
It is found that the bifurcation instability produces snap buckling without a limit point on the equilibrium path, which is quite different from the snap buckling of a shallow thin cylindrical shell under concentrated load. 本文指出分叉失稳产生了跳跃失稳,而该跳跃失稳与浅圆拱或薄圆柱壳受向心压力作用下的跳跃失稳不同,在整体平衡路径上没有一个极限点。
Based on the correlation between the structure stability and its vibration behavior, the measured vibration frequency is regarded as the monitor parameter of buckling limit point of composite cylindrical shells. 本文根据结构振动与稳定性的相关性,以振动频率测试值作为监控参数进行了复合材料圆柱壳的失稳状态监测。
Using implicit function theorm and Morse theory, we study the Bifurcation conditions of multiple limit point with some symmetries. 本文利用隐函数定理及Morse理论,给出了多重极限点在某种对称关系下导致分歧的具体条件。
On the basis of the linear stress analysis and the eigenvalue buckling analysis, the equilibrium paths for both the limit point buckling ( snap through) and bifurcation buckling are traced successfully by geometrically nonlinear analysis. 在内力分析、特征值屈曲分析的基础上,通过几何非线性分析成功跟踪了单拱的极限屈曲(跳跃屈曲)和分支屈曲全过程平衡路径。
In order to study the self_ similar measures of iterated function systems deeply, by using some methods of ergodic theory, a sequence of measures is constructed in this paper, whose limit point is a self_similar measure. 为了深入研究迭代函数系统的自相似测度,本文利用遍历理论的有关方法,具体构造测度序列,其极限点为自相似测度。
On the Limit point Classification of an Alass of 2 nd Order Symmetric Ordinary Differential Operator 一类二阶对称常微分算式的极限点型
Pull-resistance of roots will greatly enchance when average diameter of roots reaches limit point because the properties of roots changes from elasticity deformation to plastic deformation and the deformation is not reversible during roots are pulled. 根系在加载环境条件下会发生塑性变形,并且这种形变是不可逆的,细小的根系具有较大的形变率。
On Determine Region of Limit Point of a Set-net in Hyperspaces 超拓扑空间中集网的极限点所在区域的确定
Application of Iteration Method of Global Convergence in Calculation Wall Transfer Function Limit Point 大范围收敛迭代法在计算墙体传递函数极点中的应用
The calculating formula is derived in form of integration after the loca-tlon of the limit point of interface is determined. 在确定了液面极值点的位置后,导出了液面形状的积分计算公式。
The center of curvature can be defined as a limit point of intersection points of two normal line about the curve. 曲率中心又可以作为曲线上邻近的两个点所作法线的交点的极限。
Solution equation at limit point, on pre buckling and post buckling equilibrium paths is all the same, and programming is thus extremely simple. 极限点、屈曲前和后屈曲阶段解的形式相同,编程简单。
Based on the basis of null space and M-P inverse theorem, a unified incremental solution formulae, expressed as the null space basis of the augmented matrix, were firstly formulated herein for the incremental equilibrium equation at the limit point and non-critical points. 根据零空间基和M-P广义逆理论,推导了结构非线性增量平衡方程极值点与非临界点解的统一形式,并直接表示为增广矩阵零空间基的形式。
Every ω-limit point of an ω-limit point is recurrent point. 任一点的ω-极限点的ω-极限点是回归点。
Limit point flow mode analysis of exhaust diffuser and operation characteristics of injector 排气扩压器极限点流动模式分析及引射器工作状态特性
Third, on the basis of the investigation of the criminal law and the prison law were thought, "criminal law", the paper puts forward the commutation, progressive place encounter, parole, combined with the conditions and amplitude commutation limit point of view. 第三,对《刑法》和《监狱法》进行了思考。《刑法》方面提出:对服刑人员的奖励要减刑、累进处遇、假释相结合,减刑的条件和幅度加以限制的观点。
In Section 3, the analyticity of the Weyl function M(λ) is first studied by the Schwarz reflection principle in the case that the system is in the limit point case. 在第三章第三节中,首先利用Schwarz对称原理研究系统是极限点型时Weyl函数M(λ)的性质。
If the gradient of objective function is uniformly continuous, the global convergence result of the algorithm is established without requiring boundedness below of f and prior existence of the limit point. 在目标函数的梯度是一致连续的条件下,证明了所提出的算法是全局收敛的。该证明不需要目标函数下方有界和极限点预先存在的条件。
The relation of the dynamic load model parameters and the position of the small disturbance voltage stability limit point in the PV curve are systematically analyzed. 系统研究了负荷模型参数与负荷节点PV曲线上小干扰电压稳定极限点位置的关系。