• 本研究中定振可以改善帕金森病症状以及具有延缓病程进展作用。

    Conclusion Dingzhen Decoction can slow the ascending trend of UPDRS score in PD patients and delay the development of Parkinson's disease.

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  • 定振突变气压降水分布不均匀并在短期内发生突变有关

    The amplitude variation of seiches is related to the air pressure, wind field and rainfall above the lake.

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  • 运气起到作用德国北欧国家经济的复苏爱沙尼亚

    Luck has played a part: Estonia has been pulled up by recovery in Germany and the Nordic countries.

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  • 前轮汽车平坦路面直线行驶转向幅度频率主销持续现象

    Front wheel shimmy is the phenomenon that steering wheels vibrate around king-pin axis with a certain amplitude and frequency when the vehicle travels in a straight road.

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  • 实例计算证明,在一条件下,装置合理布置结构设计,对系统形式效果影响显著。

    Practical examples proves out the reasonable arrangement and structUral design of absorption vibration device is significant to the vibration mode and vibration insulation of the system.

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  • 带宽条件下,优化后十字天线正交方向极化轴比可以达到1

    Under certain axis ratio bandwidth, the circular polarization axis ratio of the optimized cross dipole antenna can reach 1.

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  • 特性分析所需要广义气动力根据亚音速升力理论采用马蹄压力偶极子格计算的。

    The generalized aerodynamic force required in analysis is calculated by using horse shoe vortexvibrational pressure doublet grid method, based on theory of subsonic unsteady lifting plane.

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  • 并且,以1000循环例,给出荷载作用,软土地基础可以承受最大循环荷载范围

    And the range of cyclic loads that single bucket foundation can be subjected has been determined under certain static loads for 1000 number of cycles to failure.

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  • 各种复杂分支传动系统中,由于计算工作量大而计算机内存速度提出了要求

    In complex branched transmission systems, the calculation of the torsional vibration demands the computer to have more memory and fast speed.

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  • 其次通过介绍经典拷贝相关,混沌检测理论对于噪声背景下的有效信号检测做了研究

    Then, through introducing the theory of the classical copy-correlation and chaos signal detection, some research have been done for the efficient signal detection with strong noise at the background.

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  • 本文所提出方法能够满足柔性基础降噪要求具有实用性参考价值

    The methods proposed in this dissertation, can meet the requirement of decreasing vibration and noise for flexible base, and have some practicability and reference value.

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  • 任何措施H吊杆风速下很容易发生

    The tests results indicate that (H-shaped) booms without taking any measures have galloping performance in low speed wind.

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  • 提出采用气动刚度基于试验气动阻尼进行气动修正的大跨度桥梁计算模型。

    Put forward a new method for long-span bridge buffeting analysis which using quasi-steady aerodynamic stiffness and unsteady aerodynamic damping based directly on wind tunnel test.

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  • 汽车动力传动系质量轮式的选型设计具有一的参考价值。

    This research can provide the base to select and design vehicle powertrain system of dual mass flywheel type torsional vibration damper.

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  • 理论分析仿真表明连续时间系统变结构控制确实具有一棒性,并且能够实现抖控制系统控制的部分解耦

    The theoretical reasoning and simulation results show that continuous time VSC system can be more robust than PID system, and chattering control an be partially decoupled with system dynamics.

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  • 转子偏心引起的气流条件下可能诱发转子失稳

    The gas exciting force caused by blade tip clearance may cause rotors unsteady under certain condition.

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  • 研究结论对于改善架系统特性悬架橡胶元件设计有一工程指导意义。

    The research results will be very helpful for the improvement of suspension vibration isolation characteristics under road irregularity excitation, and for the design of rubber bushings.

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  • 分析阻尼运动,得到了临界阻尼的附加条件,讨论了在的实验误差要求范围内,欠阻尼临界阻尼更快回到平衡位置的问题。

    The paper also discusses the fact when that certain precision requirements are met, the underdamping vibrator returns more quickly to the balance position than the critical damping vibrator.

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  • 完全气动力由格林函数方法直接计算分析结果准确

    For fully unsteady aerodynamic force is calculated with Green's Function method, the results of flutter analysis are accurate.

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  • 实际仿真机上应用模型可以分析出两台轴流风机并列运行工况,对现场轴流风机的运行具有一的指导作用。

    By using the model in real simulator, the operation status of axial-flow fans can be analysed and the results are of specified value to the operation of axial-flow fans in power plants.

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  • 汽车动力传动系质量飞轮式选型设计具有一的参考价值。

    The elastic characteristic and torsional stiffness of four kinds of typical dual mass flywheel type torsional vibration damper is analyzed in detail.

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  • 本文动力有限单元框架式结构特性基本规律进行研究。

    In this paper, the basic relations of the natural vibration characteristics of framed structures have been studied by means of the dynamic finite element method.

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  • 物料纵断面受力分析表明分选机激方向分选横向角度

    The analysis of forces exerted on material on vertical section shows that there should be an Angle between the vibrated force direction and crosswise of separation bed.

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  • 设计方法精密机床超微机构超低传递设计参考价值

    This isolation designing method has a certain value of reference to isolation design on super-low transmission ratio of super-precision machine tools and super-micro positioning mechanisms, etc.

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  • 跨声速飞机机翼了跨声速气动力计算,对跨声速民航机机翼模型作了颤计算,TDLM比较表明,两者结果有较好的一致性。

    The unsteady aerodynamic results of the transonic wing are presented, and flutter calculation is made. The comparison with TDLM shows that the agreement is very good.

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  • 条件时变进给量变化幅度变化频率越大效果好。

    The larger the variation of amplitude and frequency of time-varying feed rate, the better the effect of suppressing chatter under some conditions.

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  • 随着温度升高,细化作用越好,当温度提高程度时,细化效果减弱

    The structure refinement improves with the increase of temperature, but over a certain temperature, the effect of refining grains decreases.

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  • 分析了直升机从悬停到小速度飞时垂直气流均匀分布对直升机平衡操纵以及对系统摆后退型模态阻尼影响

    The influences of nonuniform vertical flow on helicopter trim controls and regressive lag modal damping levels were analyzed in hovering and forward flight.

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  • 分析了直升机从悬停到小速度飞时垂直气流均匀分布对直升机平衡操纵以及对系统摆后退型模态阻尼影响

    The influences of nonuniform vertical flow on helicopter trim controls and regressive lag modal damping levels were analyzed in hovering and forward flight.

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