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Taking Rong hu bridge project as the background, the paper Studies on the optimization of dead load cable tension, construct system of controlling, effect of non-linear factor, limit bearing capacity of structure and spatial stress of concrete-filled steel tubular tower and the combination of girder, which are based on the hybrid cable-stayed bridge.Asking for the maximal deformation of tower and girder to be minimized and cable permissible stress as constraint conditions, the paper tries to solve the ideal dead load cable tension by combining finite element calculation and optimize analysis.

本文以蓉湖大桥工程为背景，就混合梁斜拉桥的成桥恒载索力优化、施工监控体系、过程非线性因素影响、结构极限承载力、索塔和主梁结合部的空间应力分析等问题开展研究：关于索力的优化，是以斜拉桥索塔和梁的最大变位最小为目标，以拉索容许应力为约束条件，采用有限元计算与优化分析相结合的方法来确定斜拉桥的成桥合理恒载索力。

The variable load operating mode of the rotary table and swivel was transformed equivalently into stable load operating mode, and the equations for calculating the equivalent weig...

即将转盘和水龙头主轴承由变载荷工况向稳定载荷工况作等效转换，从而导出等效当量动载荷Pm 的计算式及主轴承寿命估算公式，并以 40 0 0m深井钻机水龙头主轴承为例，进行了疲劳寿命的估算

The results indicate that weight factor had significantly effect on gait speed, steps per minute, gait cycle time, the ratio of stance time and swing time, maximal flexion angle of knee joint and the range of motion of elbow joint. Shelf height had significantly effects on hip flexion and elbow ROM. Box size factor had significantly effect on stride length, gait cycle time, the ratio of stance time and swing time, knee joint elbow ROM. For the muscle activity levels with EMG, load weight and shelf height both affected the %MVC significantly. When the subjects carrying a load of 14kg, the muscle activity and the subjective body part discomfort rating are both higher than that of 7kg. The box size had effect on the body part discomfort rating of upper extremity and back. For the kinetic and kinematics analysis, the shelf height around elbow height was better than the other two height levels.

研究结果显示，对步态时间与空间参数而言，重量因子显著影响步速、步频、步态周期时间与站立期摆荡期比值，箱型因子显著影响步长、步态周期时间与站立期摆荡期比值；关节活动度而言，重量显著影响膝关节最大弯曲角度、肘关节屈伸角度范围，高度因子显著影响髋关节前后倾角度、肘关节活动各变项，箱型因子影响膝关节弯曲最大最小值以及肘关节活动各变项，对肌肉活动度而言，重量与高度因子皆显著影响MVC%值，14公斤重者肌肉活动度与主观不舒适程度皆较7公斤者高，箱型因子虽无明显影响肌肉活动度，但是在主观不舒适程度上却明显影响上肢与背部，终点放置高度应设在肘高附近为佳。

Through analysis to the pumping unit's load characteristic, the relationship between the position of the suspension point load's peak value and the oil well's parameters has been obtained and a new method about the transforming of the pumping unit with downward beam balance weight is proposed.

分析常规游梁式抽油机的载荷特性，得出悬点载荷的峰值出现的位置与井况参数的关系，提出一种下偏杠铃抽油机改造方法，依据油井抽汲参数调节下偏杠铃的角度，使其最大力臂与悬点最大载荷对应，提高抽油机的平衡效果。

The results show that:(1)the low-noise source-follower circuit can be effectively used to measure the output of PVDF thin film;(2)the piezoelectric coefficient D33 of the PVDF is very sensitive on temperatures;(3)the value of D33 intensively fluctuate in initial loading stage,this means that a pre-load is needed in practice application to keep a constant piezoelectric coefficient D33 of the PVDF;(4)when the compressive load is imposed on the surface of the PVDF along a incline direction,D33 value is obvious changed with changing incline angle,and(5)the frequency bandwidth of the PVDF thin film is very wide,it is more suitable to measure strike or impact loading at various loading conditions.

结果表明：(1)低噪声源跟随电路可有效测量PVDF 薄膜输出；(2)PVDF压电薄膜的压电系数D33对温度很敏感；(3)D33值在加载初始阶段波动很大，所以实际应用中应给PVDF提供一个预压载荷，以确保有一恒定的压电系数D33；(4)当压载荷沿倾斜方向作用在PVDF 表面时，由于有剪切力作用，D33 值会随着倾斜角的变化发生显著改变；(5)PVDF 薄膜具有很宽的频响，更适用于测定不同载荷条件下的侵彻或冲击等动态载荷。

The strain of sheet mainly occurs in loading end in the initial load. With the increase of load, the strain extends to the remote end; the bond stress gradually reduces from the loading end to the remote end; the peak bond stress locates slightly away from the loading end. For 16.3% moisture content, the effective bond length between BFRP and wood is 100 mm.

结果表明，加载初期，纤维布上的应变主要存在于加载端附近，当荷载逐渐增加时，应变也向加载远端增大；随着与加载点距离的增加，粘结应力逐渐降低；随着荷载的增加，粘结应力峰值位置向远离加载点方向稍有移动；在含水率为16.3%条件下，BFRP与木材的有效粘结长度为100mm。

The system uses PID controller and fuzzy controller to design automatic control loops, a study of fuzzy three-element feed-water control system for a CFB municipal waste incinerator is introduced. The incinerator is faced with problems such as large-scale fluctuation of furnace heat load and low regulation resolution of main control feed-water valve. The fuzzy logic control system is applied to modulate PI control parameters according to steam drum water level to fit fluctuated heat load, the inner and outer control loops are realized in an asynchronous way to effectively decrease regulation time and improve regulation precision.

针对垃圾炉炉膛负荷波动较大，同时给水调节阀门执行机构的调节精度较低的现状，在传统三冲量串级汽包水位控制方式的基础上，采用模糊控制策略对内、外串级回路的PI控制参数进行分区域调整，强调了PI参数在被控参量处于不同范围时的分离作用，同时内、外控制回路采用异步控制方式，浙江大学硕士学位论文从而有效地减小了被控参量的调节时间，提高调节精度，使水位波动控制在△为士12~范围内。

Integral in the design of three-dimensional structure of the storage shelves, with particular attention to the following two of the most adverse combination of loads: the role of wind load at the time of a state-wide database of no-load power; when the level of seismic action of the whole library full of force.

在设计整体式立体仓库的货架结构时，尤其注意下列两种最不利的荷载的组合：风载起作用时的全库空载状态下的受力；水平地震作用时全库满载下的受力。

Moreover, the author analyzed and researched dynamic load of the needle valve spring by adopting the method of characteristic line and proposed to design the needle valve spring using its dynamic load.

运用特征线法研究和分析针阀弹簧的动力负荷，推导出采用动载法设计针阀弹簧的方法，从而提高设计的稳健性。高压共轨喷油器精度和技术要求高，加工难度大。

It comprises an A.C three-phase asynchronous motor, an electromagnetic slip coupling and controller. It is usually used under a constant torque load and is particularly suitable for the use under the load with a decreasing torque such as the centrifugal pump and blower, etc. featuring evident energy-saving efficiency.

它由Y系列三相交流电动机、电磁转差离合器和控制器组成，电磁调速电动机广泛用于恒转矩负载场合，特殊适宜在递减转矩负载中使用，有较明显节电效果。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"