查询词典 time-base control

Aqueous extract of cotton has allelopathic effect on Raphanus sativus, Brassica campestris, Lactuca indica, Brassica campestris, Echinochloa crusgall, Setaria viridis and Abutilon theophrasti and its inhibition effect gradually strengthens with increasing concentration. Aqueous extracts from stems, leaves and roots of cotton inhibit or accelerate seed germination and seedling growth, and activity of enzyme of seedling root of cotton. While aqueous extracts from stems and leaves of cotton are 0.02 gmL^(-1), root length, shoot length, lateral root number and dry weight of cotton respectively increase by 10.3%, 3.1%, 22.9% and 2.4% over the control. The above mentioned indexes are lower than the control by 34.4%, 39.2%, 40.6% and 19.0% respectively as the aqueous extracts are 0.1 gmL^(-1). At the same time, root activity and SOD activity decrease by 38.2% and 36.7%, while POD activity and MDA content increase by 52.3% and 36.5%. Growth indexes of plant receptors increase at low concentrations but decrease at high concentrations of aqueous extracts. The allelopathic effect of aqueous extract of stems and leaves is stronger than that of root.

结果表明：棉花植株水浸提液对萝卜、白菜、莴苣、油菜、稗草、狗尾草、苘麻均具有化感效应，随着作用浓度增加，抑制效应逐渐加强；棉花茎叶和根系水浸提液对棉花种子萌发、幼苗生长、幼苗根系活力、根系酶活性有抑制或促进作用，当茎叶浸提液浓度为0.02 gmL^(-1)时，棉花根长、苗高、侧根数、干重分别比对照增加10.3%、3.1%、22.9%和2.4%，当浓度为0.1 gmL^(-1)时，上述指标与对照相比分别降低34.4%、39.2%、40.6%和19.0%，而根系活力、SOD活性比对照降低38.2%、36.7%，POD活性、MDA含量较对照增加52.3%和36.5%，不同浓度棉花植株水浸提液对棉花生长呈现"低促高抑"的规律，且茎叶浸提液作用效应大于根系浸提液。

Another carries out input fuzzy quantificat and grading quantificat in the same time, deduces using Takagi-Sugeno fuzzy algorithm, and introduces fuzzy algorithm into weight training of CMAC. It has the characteristics of less quantificat grade and high accuracy of function approximability. It shows good effectivity used for Wiener model identifying. By syncretizing MVL, linear neuron, fuzzy control and CMAC, this paper gives a kind of FCMAC nonlinear control system with the ability of self-learning in line.

将模糊控制和小脑模型神经网络有机的结合在一起，提出了两种模糊小脑模型神经网络，一种是在CMAC基础上进行输出模糊插值，可减小非样本点误差，提高精度和训练速度；一种是对输入进行分级量化的同时进行模糊量化，利用Takagi-Sugeno模糊算法进行推理，并将模糊算法引入CMAC的权值训练，具有输入量化级数少、函数逼近精度高等特点，用于Wiener模型辨识效果好。

After a detailed analysis of the forces in subway train's running, the dynamics mathematical model of subway train is constructed; the eventbased control technology is adopted to solve the controlling of subway, the velocity and acceleration function with respect to the distance are deduced by introducing the action reference variable in the control problem which the object is to minimize the running time. The running scheme can be programmed in realtime, the delay caused by uncertain events is avoided. So it offers a new way for the metro research.

分析了地铁列车运行过程中的受力情况，建立了地铁列车的力学模型；将基于事件的控制技术应用到地铁列车的控制中，通过引入运动参考变量，求出在以站间最小运行时间为最终目标的列车控制中，列车速度、加速度等关于列车运行距离的函数表达式，从而可以根据列车走行距离来实时调整和规划地铁的运行规律，避免人为因素或不确定性因素导致的列车运行晚点，为研究地铁列车的规划提供了一种新的方法。

And an optimal operation strategy of any kind of products subject to spoilage at any time is obtained on the basis of the proposition of the model of distributed parameter control systems. Moreover, definite economic explanations to spatial adjoint function and control variables are presented.

通过建立可变质产品的最优经营管理的分布参数控制系统模型，得出了零售企业每个瞬间每种可变质产品的最优经营管理策略，并对空间伴随函数和控制变量给出了明确的经济学解释。

In this scheme, the description of unitary evolution and quantum measurement is unified and the quantum control operation is represented by probability state transition. The algorithm works as follows. At first a measurement is applied on the system. If the state after collapse is not the desired eigenstate, then system evolution will go on. After a period of time, the system is measured again. The process will go on like this until we get the desired eigenstate by measurement. Finally the system is driven to the target state with admissible control as before.

4把本征态能控性概念进一步向前发展，提出了概率能控性的概念，将幺正演化和量子测量这两种量子控制手段统一的用概率状态转移来描述，并针对一类特殊的本征态能控的系统，提出了幺正演化和测量交替进行的量子反馈控制策略：如果单步测量所得到的本征态不是期望的本征态，则让系统以这一本征态作为新的初态进行下一步的幺正演化，然后在适当的时候再次测量，让系统塌缩到某一本征态，如此重复进行，直到达到期望的目标态为止。

Based on mechanism and vehicle theories theoretical analysis is pursued and normal driving conditions are put forward. The relations are analyzed between load distribution and power consumption. Mechanical formula is proposed. Furthermore in this paper the theoretical model of the total power consumption is established, and the relations of the total minimized power consumption with the air-cushion pressure and the fan revolution are discussed. The optimum operation point is put forward. The dynamic digital simulation studies are carried out on the operating procedure of the half-track air-cushion vehicle on soft terrain. Mechanical parameters and soil mechanics characteristics affecting vehicle power consumption and riding performance are analyzed. At the same time according to the model formula, the automation control problem is discussed. It is a theoretical instruction for further automation control.

本文还从力学和车辆原理的角度进行了理论分析，推导了半履带式气垫车的需求功率及正常行驶条件，研究了气垫压力和功率消耗之间的关系，提出了力学模型公式；建立了半履带式气垫车总功率消耗的理论模型，研究了最小功率消耗时功率与垫压及表征气垫车行驶状态的各参数的关系，分析了相应的影响因素，并提出了最佳工作状态的定义；同时进行了半履带式气垫车在软地面的行驶过程的动态数字仿真试验研究工作，对影响车辆功率消耗和行驶平顺性的各力学参数和土壤参数进行了分析，得到了各运行状态参数的变化规律，验证了最佳工作状态和最佳垫压的理论，根据力学模型公式对进一步的自动控制问题进行了探讨，为系统的控制提供了理论指导。

Based on an introduction to the robust control of uncertain linear systems and a survey on the past and recent contributions to the related polynomial algebraic method, state space method and frequency domain method, this dissertation focuses on the robust control problem of uncertain linear systems in frequency and time domain.

本文首先就不确定线性系统的鲁棒控制问题作一扼要的介绍和概括，并分多项式代数方法、状态空间方法和频率域方法对其历史发展及其研究现状进行了比较全面的综述。

Randomly divide 124 cases into 60 cases of PPH group and 64 of control group of prolapse naevus treated with traditional resection; observe both operation time, post-operation complications, in hospital time and fee, recovery time and recurrence.

方法］将124例痔疮患者随机分为60例手缝PPH组与64例脱垂痔用传统切除术的对照组，观察比较两组手术时间、术后各种并发症的发生、住院时间、住院费用、恢复时间、复发等情况。

Among them, oil supply module focuses their studies on the oil recipient, transportation, technical replenishment and quality control, measurement monitoring and other related managements between working units; through optimizing and reducing the time consumed for turnover, it takes out non-essential mid-connections, smoothens and simplifies current technical process of oil supply, consecutively increases operation efficiency, reduces costs and releases extra assets for development usage at the same time. The optimization of work unit production emphasizes the research on aviation oil station, oil service depots, silo and other storage units. Through work flow and work time analysis, the company could redesign the personnel formation and corporation structure, practically determine the labor structure and carry out reformation management and risk assessment.

其中，供油系供油模式着重于研究供油系统中各作业单元之间航油的接收、转输、加注工艺流程及质量控制、计量监控等控制环节，通过优化缩短航油流转时间，减少不必要中间环节，理顺、简化现有供油工艺流程，以提高运作效率，降低成本，同时将富余资产释放出来，以便开发利用；作业单元生产流程优化，着重于研究航空加油站、业务油库、储油库等生产作业单元的工作内容，通过工作流程分析、作业时间分析进行定岗定员和组织架构设计，合理地确定劳动组织并实施变革管理和风险评估。

For best shot effect, hitting target by many missile at one time is required generally when the ballistic missiles attacks target. So, it is important for ballistic missile's firepower control to confirm shot time based on flight time.

为了达到最佳射击效果，弹道导弹突击目标时经常需要多枚导弹同时击中目标，因此根据飞行时间确定发射时间则成为弹道导弹火力控制问题的重要内容。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。