实际时间

To a certain extent. Fang Zhenning is a fetishist. A lot of what he shoots is modern architecture-humanity's greatest achievement since the industrial age. it is no longer simply buildings. but symbols of the modern age. but his lens peels from actual objects all their normal characteristics-weight. bulk. smell. time. continuity and meaning-and through enlargement. intercepting details creates a kind of concrete abstraction. allowing the actual object to exist in another state.

在某种程度上，方振宁是一个拜物教徒，他拍摄的多是现代建筑物——工业时代以来人类最庞大的创造，它们已不是单纯的建筑，而是现代性的象征物，但是他的镜头把实际物体通常的特性——重量、体积、气味、时间、连续性以及意义——剥下，以放大、截取细部的方式造成一种具像的抽象性，让实际物体以另一种状态存在。

Three expert systems for inversion were applied into practical engineering. Basing on the formulation of apparent resistivity in whole space, the curves of time vs. response which were gotten from practical exploring were transformed into the curves of depth vs. apparent resistivity by VC program. The data which were gotten from measurement line on working face in tunnel were transformed into the section map of depth vs. apparent resistivity. The result shows that expert system for inversion is feasible.

将三种反演专家系统应用于实际工程中，同时根据全空间视电阻率公式，采用VC编程的方法，将实际工程探测所得到的时间——响应曲线转化为深度——视电阻率曲线，将掌子面测线数据转化为深度——视电阻率断面图，对比两种计算方法的结果，说明反演专家系统在瞬变电磁反演中的可行性

A vicar capitular, or in his place a lawful administrator, enjoys all the dispensing powers possessed by the bishop in virtue of his ordinary jurisdiction or of delegation of the law; according to the actual discipline he enjoys even the habitual powers which had been granted the deceased bishop for a fixed period of time or for a limited number of cases, even if the indult should have been made out in the name of the Bishop of N. Considering the actual praxis of the Holy See, the same is true of particular indults.

一副主教capitular ，或在他的地方，一个合法的管理员，拥有所有权力配药所拥有的主教，在凭借其普通管辖或代表团团长的，依法按照实际纪律，他喜欢，甚至习惯性的权力，而被授予已故主教为一个固定的时间内，或为数量有限的情况下，即使indult应该已经取得了列的名字主教12月31日考虑到实际实践的教廷，也同样如此，尤其是indults。

In practice, we can dispart hereinafter class: classification, clustering, regression, sequence, etc.

在实际应用中，往往根据模式的实际作用细分为以下几种：分类、聚类、回归、序列、时间序列等。

ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.

本论文针对车载异步电机在矢量控制器所遇到的问题：定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案：分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算，分析出对于电流型逆变器在采用定子磁场定向时，其性能同时具有矢量控制和直接转矩控制两者的优势，并对电压型逆变器在转子磁场定向下的模型进行了仿真研究；建立异步电机非线性模型，推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程，并做出了仿真结果，建立异步电机在非线性模型下的矢量控制调节器的PI参数设计，在实际应用中，若忽略电机电感的动态变化，可以根据当前的磁路饱和状态而在线修正电感参数，从而将非线性方程线性化，降低控制器的复杂度；考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出，本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题；推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通，用于实现高性能的矢量控制算法，并给出了仿真结果；推导出了电动汽车恒转矩给定的闭环回馈制动系统，实现了电动控制模型和制动模型的统一，而且结合铅酸电池最大充电电流的要求，为制动转矩在线给定建立了数学模型；设计了基于双DSP系统的高性能矢量控制器软硬件框图，并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。

Characteristics of the Internet traffic data flow are studied based on the chaos theory. A phase space that is isometric with the network dynamic system is reconstructed by using the single variable time series of a network flow. Some parameters, such as the correlative dimension and the Lyapunov exponent are calculated,and the chaos characteristic is proved to exist in Internet traffic data flows. A neural network model is constructed based on radial basis function to forecast actual Internet traffic data flow.

摘 要：应用混沌理论，分析了网络流量，用单变量的网络流量时间序列重构与网络动力系统等距同构的相空间，进而计算了实际网络的关维数和Lyapunov指数，并证实了网络流量存在混沌特性；据此建立了基于径向基函数神经网络的模型，并对实际网络数据流进行了预测。

Nntality is the birth of new individuals. The realized natality is the actual successful reproduction per female over a period of time.

出生率就是新个体的产生，实际出生率就是一段时间内每个雌体实际的成功繁殖量。

The importance of studying shrinking of polystyrene pattern for evaporative pattern casting is pointed out in this paper.After studying effects of technological factorsexpandable polystyrene(EPSbead diameter,pre-expansion time,age time of pre-expansion bead,molding steam pressure,storage time and temperature of pattern on shrinking of pattern,it is shown that the stress relaxation of pattern and the escape of pentane and water in pattern are main cause of pattern shrinking.

指出了对消失模铸造用聚苯乙烯模样收缩展开研究的必要性，研究了可发性聚苯乙烯珠粒粒径、预发泡时间、预发泡珠粒熟化时间、成形蒸汽压力及模样的放置时间、贮存温度对模样收缩的影响，认为模样中发泡剂和水分的挥发以及应力的释放是引起模样收缩的主要原因，最后提出了在实际生产中为减少模样收缩应采取的措施。

The research of the temporal granularity questions mostly concentrate on expressing the temporal granularity with the time type at present, in practical application, the expression method have heavy limitation to user self-defining granularity.

目前对时间粒度问题的研究大多集中在用时态类型表示时间粒度，而在实际应用中，这种表示方法对于用户自定义的时间粒度具有很大的局限性。

The mathematical model by which the forming time can be precisely calculated is ratiocinated. This model shows that in SLS the scanning "delay" phenomenon can make the actual forming time greatly exceed the theoretical time, and the total number, total length of the scanning lines and the scanning speed have different effects on the scanning "delay".

本文推导出了SLS成型时间精确计算的数学模型，该模型显示在SLS加工中的扫描&延时&现象会造成实际成型时间远远大于理论时间，并且扫描线条数、扫描线总长和扫描速度对扫描&延时&有不同程度的影响。

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。