查询词典 active time

Finally, based on the studies above, the characteristics of pantograph/catenary are analyzed and the active pantograph is modeled. By using the linear quadratic optimal control law, the design objective is to minimize the performance index, which is a function of the state variables representing the pantographs dynamic characteristic and the active control force. The control system is designed considering the complete state feedback.

最后，在此基础上，分析了受电弓／接触网系统的工作特点，建立了受电弓主动控制系统的数学模型，利用线性二次型最优控制策略，以给定性能指标为最小值为设计目标，性能指标为表征受电弓动力学特性的状态变量和主动控制力的函数，考虑了完全状态反馈的情况，进行了控制系统的设计。

Active and semi-active controls for the parametrically excited instability of an inclined cable under support-motion excitations are studied in this thesis.

本文研究斜拉索在支座运动激励下参激不稳定性的主动与半主动控制。

However, among the active subspaces, some of them do not contain any query results at all, those are called false active subspaces.

但是在活动子空间中，有些可能根本就不包含任何查询结果，这样的活动子空间被称为假活动子空间。

Numerical simulation results demonstrate that active suspension with a proper control strategy can decrease the roll angle and roll angle acceleration of the truck cab, the active suspension can improve both the ride comfort and driving safety.

大量的仿真结果显示，主动控制悬置系统明显降低了驾驶室的俯仰角加速度和俯仰角，采用主动控制悬置系统可有效地改善卡车行驶平顺性和乘坐舒适性。

Methods: from prepation of crude drug as start, study the technology of extract and defat with L9 (3~4) orthogonal test. With EtOH extraction and water sed, alkali washing, EtOAC extraction as main methods of eliminate dopant. Finally with alky AlzO3 chromatographic column, rich and gain anticancer active site. The maximum response was achieved at a 40 min extracting time with 10 times volume 90% EtOH added to the sample for the first time and 30 min for the second time. Adding 10 times water will produce precipitation; Place the precipitation into 6 times petroleum benzin to de-fat at 60℃.

云南红豆杉中抗癌活性物制备工艺研究方法：利用正交设计试验L9(3~4)确定原料药提取工艺为：10倍量90％乙醇提取两次，第一次40分钟，第二次30分钟；醇提液用10倍量水沉；沉淀加6倍量石油醚40℃脱脂；用1mol／L的NaOH溶液碱洗，除去酸性杂质；以碱性氧化铝柱，以环己烷／丙酮为洗脱溶剂，在环己烷-丙酮(6：4)段富集到所需活性部位，洗脱剂用量为3VB。

The requirements of efficiency and global-optimization can be met at the same time. Based on the situation of time varying of parameters of system, before entering the inference machine, the fuzzy control rules is learned and tested online by a special designed "judger", the excellent performances of fuzzy control rules which use online control is ensured. Fuzzy cerebellum model articulation control CMAC is used to control the semi-active suspension system for the first time. The convergence of this control algorithm and the convergent range is presented.

并根据实际系统参数时变的特点，用"判别器"对即将进入推理机的模糊规则进行了在线学习和测试，保证了用于实时控制的模糊规则的优良；首次应用模糊小脑模型神经网络控制器对系统实施了控制，并证明了这种控制算法的收敛性，得出了收敛范围；仿真和试验结果表明，GASAF和 FCMAC这两种智能控制算法对车辆的平顺性都有较大的改善，实时性较强。

The poetics under the influences of Zhuang Zi's ideas formed one kind of transcendental system, and had made contributions in the problems of language and meanings; the Confucian school was on the contrary, they concerned the real time people lived in, so people's activities and the active history were the subject of poetics, and"poetry expresses the mind"was the most typical reflection of this kind of system of poetics; Plato thought that time derived from the eternal idea, he constructed his system of poetics about the "mnemonics"of the idea on the base of this concept of time; Aristotle said that poetry was the imitation of human activities, his famous theory of"mimesis"was built on the"real"activities of human beings.

庄子观念影响下的诗学，形成了一套超验的隐喻体系，在言和意问题上作出了独到的贡献；以孔子为代表的儒家学派则与此相反，关注的是人生存的现实时间，人的行动及行动的历史成为诗学的主体，"诗言志"是这一诗学体系的最典型体现；柏拉图认为时间来源于永恒的理念，他以此为基础建立了对理念的"回忆"的诗学体系；亚理斯多德认为诗应该是对人的行动的模仿，他的著名的"模仿"理论便建立在人在"实在"中的行动上。

The active element drives in a time-divisional fashion the at least two light emitting elements using the at least one emission control signal during the display time subperiod of the display time period.

在显示周期期间每子显示周期期间所述有源元件使用至少一个发光控制信号分时驱动至少两个发光元件。

Assignment Method Required Attributes Required Settings All or Nothing Time none Capacity Restraint Time Iterations Capacity Convergence Alpha Beta Incremental Time Iterations Capacity Convergence Alpha Beta User Equilibrium Time Iterations Capacity Convergence Alpha Beta Stochastic User Equilibrium Time Iterations Capacity Convergence Alpha Beta Function Error System Optimum Time Iterations Capacity Convergence Alpha Beta

表格格式乱了，就这么翻吧） 1。全有全无分配法。所需属性：时间；所需设置：无； 2。容量限制法。所需属性：时间，通行能力；所需设置：迭代，收敛，α，β； 3。增量分配法。所需属性：时间，通行能力；所需设置：迭代，收敛，α，β； 4。用户平衡法。所需属性：时间，通行能力；所需设置：迭代，收敛，α，β； 5。随机用户平衡法。所需属性：时间，通行能力；所需设置：迭代，收敛，α，β，函数，误差； 6。系统最佳法。所需属性：时间，通行能力；所需设置：迭代，收敛，α，β。

The main work and the originality points of this dissertation could be concluded as the following parts:(1) To analyze systematically the mathematical model of LES of air flow in great space, under the case of isothermal and non-isothermal, as well as the combined action of buoyancy and strain. Some basic problems are studied about the LES application into airflow simulation of great space, such as boundary conditions, spatial difference scheme and time advancing scheme, time step etc., which creates the basis for the LES application to indoor airflow simulation.(2) Both the instantaneous and time averaged flow field of great space with multiple jets under isothermal and non-isothermal cases are explored with large eddy simulation method, and also discussed the dynamic characteristics and the law of fluidflow in the great space.(3) Based on the results of LES of the great space and the Fanger thermal comfort indexes, it is brought forward the concept of the series of dynamic thermal comfort evaluating indexes, which could be divided into thermal comfort index with time averaged properties PD, PPD, PMV, thermal comfort index with instantaneous properties IPD, IPPD, IPMV, and time averaged thermal comfort indexes TAPD, TAPPD, TAPMV, and transient situations time averaged thermal comfort indexes TTAPD, TTAPPD, TTAPMV. The differences among them and the calculation methods are discussed, and the four kinds of indexes are calculated with the thermal comfort index PD as an example.(4) Based on the LES results it is discussed the hot air stratification phenomena in air-conditioned buildings in the case with air supply and return registers on the ceiling and the case on the sidewall. The fundamentals of the hot air stratification are studied and the relations of estimating hot air stratification are brought forward.(5) With the advanced apparatus such as hot wire film anemometer IFA300 and laser particle field anemoscope, corresponding model test and site measurements have been done, which are compared with the simulation results and LES is proved a very promising method in air flow simulation indoor.

本文主要工作既创新点体现在以下几个方面：(1)系统分析了等温、非等温和考虑剪切力与浮升力综合作用的高大空间大涡模拟数学模型，并研究了高大空间大涡模拟在室内气流仿真应用中的一些基本问题，如边界条件、空间离散格式和时间推进格式、时间步长选择等问题，为大涡模拟在室内气流计算中的广泛应用打下了基础；(2)首次用大涡模拟方法研究了高雷诺数下高大空间多射流在等温、非等温情况下的瞬时流场和时均流场分布，并探讨了多射流流场的动态特性和流动规律；(3)基于大涡模拟的动态仿真结果和Fanger的热舒适指标，首次系统地提出了动态热舒适评价指标体系的概念：即基于时间平均参数的热舒适指标PD、PPD、PMV；基于瞬时参数的瞬时热指标IPD、IPPD、IPMV；基于时间平均热舒适指标TAPD、TAPPD、TAPMV；以及沿行动迹线的时间平均热舒适指标TTAPD、TTAPPD、TTAPMV，并分析了四类热舒适指标的差异性和计算方法，还以PD值为例对四类指标分别进行了计算；(4)基于数十种工况下空调房间大涡模拟的结果，研究了空调建筑上送上回和侧送侧回两种情况下热分层现象，并探讨了热分层的基本规律，首次提出了避免热分层现象的判断公式；(5)在暖通空调领域，首次使用IFA300热线风速仪、激光粒子速度场仪等先进设备，完成了与大涡模拟相对应的模型试验，并把实测结果与仿真结果进行了对比，说明LES在室内气流仿真方面是一种很有前景的方法。

They experience feelings deeply and intensely, and their emotions are often mercurial.

他们的感情深刻而强烈，情绪善变。

Surrounded with or as if with a rampart.

用城墙围绕的用城墙围绕的或类似于为城墙围绕的