查询词典 variable-density system

Parameter PID control strategy fitting for variable velocities and loads was proposed, and the control system's model was established. The control strategy was simulated in MATLAB environment, and the results proved the tracking trajectory of three kinds of gaiting, i.e.

针对控制系统能够适应不同路况的要求，设计了一种适应负载、速度变化的变参数PID控制器，并建立了控制系统模型。

Variable-temperature NMR techniques were applied to monitor the gelation process of chitosan/glycerophosphate thermosensitive hydrogel system.

采用变温核磁共振技术对壳聚糖/磷酸甘油盐温敏性水凝胶体系的凝胶化过程进行跟踪研究。

The control system for parallel-type double inverted pendulumthat features multi-variable,strong coupling,hish order and absolutely unstable in open loop,is studied.

赵万青，魏利胜，费敏锐研究了一种具有多变量、强耦合、高阶次和开环绝对不稳定等复杂特性的双并联倒立摆控制系统。

Starting with the elevation of underground water resources and a safe level of mining through variable system theory, this paper analyzes the conditions of underground water resources based on the well-studied determination method of determining the two hydrographical coefficients: rainfall infiltration replenishment rate and irrigation replenishment rate. Then considering irrigation, rainfall, drainage and other related factors, a mathematical model is set up for the calculation of underground water storage,exploitation on water regulation. After analyzing the adaptability of molepipe drainage, an underground water table regulation is given out.

论文从灌区的地下水资源及其可开采量评价分析方面入手，在对两个主要的水文地质参数即降雨入渗补给系数、灌溉入渗补给系数确定方法研究的基础上，对灌区的地下水资源状况进行分析，依据灌区的灌溉、降雨、排水条件及各种现状因素，建立了地下水资源量计算的数学模型，西安理工大学工程硕士专业学位论文计算得到青铜峡灌区地下水的最大补给量和可开采量；另外对在开发利用地下水资源过程中的地下水位的调控进行了初步的探讨，在银北灌区开展对暗管排水调控地下水位的试验研究。

A new optimally controlled vehicle consisting of a continuously variable powertrain of hydromechanical type with a regenerative braking system is put forward and studied.

提出了以使用具有较优综合性能的液压机械无级变速和带有飞轮储能的系统并对其进行最优自动操纵的车辆作为本文的研究对象。

The necessity of research on variable-speed control hydrostatic system and the markets requirement of hydraulic elevator are pointed out.

第二章，分析了闭式油路变转速液压电梯系统的稳定性，提出适合该系统的速度控制策略。

Further, relied on the analysis of dynamics of the system, a mathematical model structure with some unknown physical parameters was derived and a state space equation was approximated by using linearize method and state variable technique.

通过系统的动力学分析，推导了一个含有某些待定参数的数学模型结构，并应用线性化和状态变量技术求得了系统的状态方程式。

Japanese JTEKT faces the automatic transmission system of the car and case of infinitely variable speeds, rolled out axis of macrobian life planet to use needle bearing.

日本JTEKT面向汽车的自动传动系统和无级变速箱，推出了长寿命行星轴用滚针轴承。

The neuralgic center of the "Hub" is the Arena, central space of convergence equipped with a modular system of curtains, furniture, collapsible tiers for a variable configuration.

该&中心&是竞技场的中枢，与一个窗帘，家具，可折叠层的变量配置的模块化系统配备衔接的中央空间。

With this method, the system can be stabilized to the fixed point by perturbing the state variable in the neighborhood of the fixed point.

该方法能显著提高TCP-RED系统的性能和资源利用率。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。