参数曲线

The research of this connection under monotonic and cyclic...

采用大型有限元通用软件模拟该种连接在单调荷载和周期荷载作用下的试验，研究了该连接在弯矩荷载作用下的破坏机理、做出了该连接的滞回曲线，并确定了滞回模型和模型参数，为研究半刚性连接钢框架在地震荷载作用下的性能提供理论依据和实验基础。

Adopting the model of uniform load and triangular load separately,MRFs of different story numbers and bay numbers are analyzed by static Pushover analytical method,and the global capacity envelopes are obtained.Then,through a method for establishing the inelastic demand spectrum of design intensity and rare intensity based on elastic spectrum of seismic design code for buildings,the structural target displacement of design intensity and rare intensity are estimated by improved capacity spectrum method.The corresponding structural ductility reduction factor,the overstrength factor,the structural influencing coefficient and displacement amplification factor are determined.

分别采用水平均匀分布力和倒三角分布力加载模式对不同层数和跨数的钢框架结构进行了静力推覆分析，并得到了结构的能力曲线，在此基础上，应用改进的能力谱法，以规范反应谱为基础建立设防烈度和罕遇烈度下的弹塑性需求谱，确定出结构在设防烈度和罕遇烈度下的目标位移，进而求解出结构的延性折减系数、超强系数、结构影响系数和位移放大系数等参数；同时，分析了不同加载模式、层数和跨数等对各系数的影响。

The bifurcation and chaos behavior of impact and rubbing fault rotor system caused by the parameters of nonlinear rigidity, rotor rotating speed, eccentric mass is analyzed, in the numerical value analysis method. The bifurcation diagrams, maximum Lyapunov exponent diagrams, Poincaré maps, phase plane portraits, trajectories of journal center, time-history curve, amplitude spectra diagrams of the rotor motion are used. The convert and evolution course of periodical response, quasi-periodical response, double-periodical bifurcation, chaos of the system response is analyzed.(3). It is deduced that the general differential equation of bending-torsional-pendular coupling vibration about rotor with the gyroscopic moment. On the basis of this equation, the general differential equations of coupled bending, torsional and pendular nonlinear vibration about rotor with unbalance character and rubbing character are deduced.

2建立了具有非线性刚度的转子系统在非稳态非线性油膜力作用下的径向碰摩动力学微分方程，并应用含高阶余项的非线性动力方程的线性化数值法研究了此类系统响应的复杂动力学行为，利用转子响应的分岔图、最大Lyapunov指数曲线、Poincaré截面映射、时域波形、相轨线、轴心轨迹、幅值谱等图形分析了系统响应的周期运动、拟周期运动、倍周期分岔、混沌等运动形式的转化与演变过程，重点研究了非线性刚度、转子转速、偏心质量等系统参数对碰摩故障转子系统的分岔和混沌行为的影响。

They also noted that a radiograph of the hand is useful for determiningwhether the digital phalangeal epiphyses are capped (post-peak height elocity) or uncapped (pre-peak height elocity) because capping strongly correlates with the timing of peak height elocity, an important parameter to study when predicting cure progression.Dimeglio et al.

还发现手部平片在确认手指近端骨骺扩张或未扩张方面有用处，因为骨骺扩张与峰值出现时间相关性很强，是预测曲线回归的重要参数。

A new method to realize the curve fitting by MATLAB and obtain the photomechanical parameters in the photopolymer, based on the theoretical model and experimental data, was analyzed.

依托于实验数据，分析了利用MATLAB实现曲线拟合并得到光致聚合物中各光化学参数的新方法。

The phase and group velocities of Lamb waves in the aluminum plate related to the frequency and the thickness of the plate because of the material characters. However, for the carbon fiber composite lamina, the situation was of difference, in which the velocities were with regarded to the frequency and thickness as well as the propagational direction and the fiber orientation.

输入铝板和碳纤维板的材料参数，即可得出铝板和碳纤维材料单层板中Lamb波的频散曲线，铝板为各向同性材料，其中的Lamb波相群速度只与频率板厚的乘积相关，碳纤维板为各向异性材料，其中的Lamb波相群速度不仅与频厚积有关，还与Lamb波传播方向、碳纤维的铺层方向相关。

Applying soil's nonlinear stress-stran relationships (the skelton curve adopts Hadin's hyperbola model and the loaded/unloaded curve adopts the Masing's law revised by Pyke), and taking the viscous boundary as flank artificial boundary, 2D dynamic analysis of the foundation is programed by FEM. It contains an automatic dividing-element subroutine. It could be employed to calculate the horizontal and vertical seismic responses of the soil and foundation.

本文按照土体的非线性应力—应变模式，即将Hadin的双曲线模式作为骨架曲线，加卸荷采用Pyke等修正的广义Masing二倍法则，采用粘性边界作为侧面人工边界，用八结点等参数有限元法在微机上编写了二维地基的动力分析程序，该程序含有网络自动剖分模块，能较好地模似地基和基础在水平方向和竖向的地震反应。

Objective To compare the relationship between measurement of the time constantly derived from aortic regurgitant velocity spectra and catheter derived time constant, and to evaluate the effects of hemodynamic flow states and regurgitant volumes on the Tau AR.

目的 对比研究由主动脉返流频谱得到的时间常数Tau和心导管根据左室压力曲线得到的时间常数的相关性，评估血流动力学参数和返流容积对Tau－AR的影响。

Ringy amorphous alloy Fe36Co36B20Si4Nb4 is obtained by the method of copper mould suction casting. Wholly amorphous structure is proved by x-ray diffraction and differential scanning calorimeter. The parameters obtained from DSC proves that it has high glass forming ability.

采用铜模吸铸法，制备出管状非晶态合金Fe36Co36B20Si4Nb4.X-射线衍射分析与差示扫描量热曲线DSC分析表明，Fe36Co36B20Si4Nb4完全是非晶态，具有很强的玻璃形成能力，并确定了它的热力学参数。

In the cerebrospinal fluid circulation path and curve of time-velocity cerebrospinal fluid parameters of the aqueduct and the sellar region are different.

在脑脊液循环路径中，中脑导水管与鞍区脑脊液流动的参数及时间-速度曲线是不同的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。