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The driver supplies a second reset pulse to the electrode during a second frame when the variation between the video data load of a first frame and the video data load of the second frame is greater a threshold value.

当第一帧的视频数据的负载和第二帧的视频数据的负载之间的变化大于阈值时，该驱动器在第二帧内向电极提供第二复位脉冲。

To match the load characteristic of shoe tree CNC machine tool's transmissionsystem more reasonably ,minimize the moment of inertia and react to the change ofvelocity and acceleration in every axis quickly ,this paper introduces a method ofbuilding the mathematics model based on motor′s load to optimize the transmissionsystems ,distribute the total speed rate and analyse the transmission systems to chosethe best transmissionscheme.

为了实现鞋楦机床数控进给传动系统负载特性的更好匹配，使各轴能够快速地响应速度和加速度的变化，建立了基于电机负载的传动系统数学模型，分析了各个相关动力参数对电机负载的影响，进行了传动系统速比的优化、进行了载荷的匹配、确定了最佳的传动方案和动力参数以实现电机的负载最小。

We put the two main engineering machine loading which are sinusoidal wave load and step load, and the results indicate that the dynamic responds are satisfied for the needs of the experiments. Besides, this paper analyzes the influence effects of the tire friction coefficient on different parameters, and then put forwards the experiment method of the performance of the tire friction.

加载工程机械主要的两种加载模式正弦波载荷和阶跃载荷，试验台动态仿真的结果表明系统动态响应性能能够满足试验要求；此外，论文还对不同路面对轮胎附着系数的影响进行了分析，通过这方面的研究，提出研究轮胎附着性能的试验方法。

To solve these problems, assembled skew girder bridge has been simulated used general finite element software ANSYS. Through computation and analysis, the paper discusses the effects of different skew angle and span on load transverse distribution of skew girder bridge, and obtains the changing discipline of the automobile load transverse distribution in different situation.

针对这些问题，本文借助于通用有限元软件ANSYS，对装配式斜梁桥进行模拟，通过计算分析，对在不同跨度和斜度影响下的斜梁桥荷载横向分布进行探讨，并得到了不同情况下汽车荷载横向分布变化规律。

Influence of working load on load-transfer properties in negative skin friction pile is simply analysed.

分析了桩顶荷载对于负摩阻力桩基荷载传递性状的影响。

To all project practicality, the introduction is given to the operational characteristics, the methods for calculation and the researching actuality of the tail tunnels with sloping ceiling underground hydropower stations the Three Gorges. This paper has discussed in detail the characteristic method being the same with the compressive flow and the Priessmann solution being the same with the free-surface-pressure flow. And how to deal with boundary conditions has been expatiated. Also hydraulic transient process of tremendous load fluctuation in the tail tunnels with sloping ceiling has been numerical simulated and the Fortran program for numerical simulation has been given. The paper gain the maximal press for tail end of the shell, the maximal rising rate of rotational speed of generating set, the maximal vacuum degree for inlet of the tail tunnels and so on under 11 kinds conditions of tremendous load fluctuation. These conditions include the design conditions, the check conditions and the superposition conditions. Finally, the computing results have been analyzed and summarized. The end chapter is the general comment of the whole-length content and the describing of the intending view of researching.

本文以三峡右岸地下电站尾水洞设计为背景，从工程实际出发，阐述了变顶高尾水洞的工作特性、使用范围及其研究现状；详细论述了适用有压流的特征线法、适用明满交替流的普里斯曼解法等数学模型；边界条件的给定和明满交替流的计算方法；用Fonran语言编制了数值计算程序，对三峡右岸地下电站变顶高尾水洞的大波动工况进行了数值模拟，分别得出了在设计工况、校核工况和叠加工况下蜗壳末端最大压力上升值、机组最大转速上升值和尾水管进口最大真空度等重要参数；对数值计算结果进行了详细分析并得出了有价值的结论；最后展望了今后水电站变顶高尾水洞的研究方向。

Because a bulk smoothing capacitor is usually installed on the DC side of many AC to DC converters, the characteristics of harmonic loads will be influenced by this capacitor. Nowadays, shunt active power filters can't reduce harmonics effectively for this voltage type harmonic-producing load. Therefore, a series active power filter is designed to meet the requirements of voltage-sourced harmonic loads. Both source current and load voltage are detected in order to reach the compensation voltage for the SAPF.

由於许多交直流电源转换器均在直流端并联一直流电容以作为稳压之用，此大电容将造成负载谐波特性的改变；此类谐波源负载，如果使用现今常见的并联型主动式电力滤波器并不能很有效解决此类谐波问题；因此本文将采用串联型主动式电力滤波器，并配合同时量测电源电流及负载电压的混合式控制模式，即可有效解决此类谐波问题。

In gas-puff Z-pinch experiments,the snowplow model,one of the simplest and commonly used models,has been used to predict the implosion time from the generator current parameters,the load mass per unit length,and initial radius of annular gas load.

在喷气Z-pinch内爆等离子体研究中，雪铲模型是一种常用的、比较简单的物理模型。

This reasoning recognizes the load carrying capacity of the soffit and stem section at or near f ′c and the relatively light load of the deck.

这个道理认识的承载能力的檐口和茎段或近六' C和相对轻负荷的30%~50%。

The interface bond capability and the failure mode of soffit strengthening are studied, as well as the influence of strengthening concrete technique to the interface bond capability. The cracked load, the failure load, the tension stiffness, the stress of the steel bar and the cracks of the strengthening arch are compared with those of the contrast arch.

第五，考虑到实际工程应用，设计并制作了采用增大截面法在拱腹部位加固钢筋混凝土拱圈试件，研究拱腹加固新老混凝土结合面的粘结性能及破坏形式和补强混凝土的施工工艺对新老混凝土结合面粘结性能的影响。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。