参数变化

Objective:To discuss that using couch-height as the parameter of vertical position in the radiotherapy reduce the vertical deviation from the central point, which is caused by the change of the patient's body, fixation and so on.

目的：探讨以床面高度作为垂直摆位参数，在放射治疗中可以减少因患者身体变化和固定装置等因素的影响引起的中心点的垂直位移偏差。

The variation of positron annihilation parameters of Al-Li alloys with test temperature was also measured in the present investigation.

实验中还测试了Al-Li合金的正电子湮没参数随温度的变化规律。

In this paper, the relations of operating parameters such as coolant temperature, engine speed, throttle valve opening and spark advance angle with unburned hydrocarbon emissions due to the presence of combustion chamber deposits in spark ignition engine are investigated both theoretically and experimentally.

本文从实验和理论两个方面来系统地研究火花点火式发动机燃烧室沉积物处未燃碳氢排放浓度随冷却水温、发动机转速、节气门开度和点火提前角等运转参数的变化规律。

In view of the probability integral method in prediction of mining subsidence,the paper analyzes the errors of movement and deformation values resulted from the errors of primary prediction parameter s, and analyzes the corresponding regularity of variation and relations.

针对开采沉陷预计中的概率积分法，分析了由于主要预计参数的误差而导致移动变形值的误差，并且分析了其对应的变化规律和关系。

The pulse wave propagation in human is closely related to the change of the mechanical parameters in the cardiovascular system.

人体脉搏的传播特性与心血管系统中相关力学参数的变化密切相关。

When parameters satisfy some assumptions, Rossler system is a chaotic dynamical system. In order to discuss the dynamical character of Rossler system and use delayed feedback control chaos, in the first, we discuss the stability of the steady states of Rossler system with delayed feedback. When the engenvalues of the linear part are pure imaginary numbers, we obtain the corresponding delay value. The stability of the steady state is lost when the delay passes through the critical value, and simultaneity chaos may vanish, as well as there will be a family periodic solutions bifurcate from the steady states.

在几个参数满足一定的假设条件下，Rossler系统是一个具有混沌特性的动力系统，为了研究该系统的动力学性质并利用时滞实现混沌控制，本文首先对具有时滞的Rossler系统的平衡点进行稳定性分析，当系统的线性部分对应的特征值为纯虚根时，算出相应的时滞τ，得到了平衡点的稳定性会在时滞τ取某些值时发生翻转，同时系统的混沌特性也会出现变化，并且在平衡点处系统经历Hopf分支。

The change of parameter {a, b, c, d} with temperature in double exponential function can be expressed as a quadric polynomial function of temperature.

双指数函数中的参数{a， b， c， d}随温度的变化可以表示成温度的二次多项式函数。

The non linear quasi static analytic method is used to calculate the relationships between the horizontal offset,vertical set down of the TLP body,the change of tendon tensions in the leg and external force acting on TLP.

通过分析给出张力腿平台本体水平偏移、垂直下沉、张力腿内张力变化、水平外力等重要参数之间的相互关系，可初步进行定性和定量分析，对平台的初步设计有一定参考作用

The free volume cell theory was applied to derivative the formula of activity coefficients of liquid binary solution at arbitrary temperature. The Monte Carlo algorithm was employed to calculate the non-liner equations, then the free volume parameters were directly correlated to the activity coefficients of liquid binary, ternary, quaternary and quinary solutions at arbitrary temperature. The three dimensional diagrams of a-x-T diagrams representing the changes of activity with those of temperature and concentration were plotted.

由自由体积胞腔理论推证了某温度下两组分的活度系数关联式；引入MonteCarlo非线性方程解法，通过无限稀释溶液的实验活度系数数据直接得到自由体积参数和二元系及多元系液态金属溶液在任意温度下全浓度范围内的活度数据，构筑了直观反映活度随温度和浓度变化的a-x-T三维图形。

Objective:To assess the clinical value of routine blood and reticulocyte parameters in acute radiation sickness.

目的：分析2例急性放射病患者的外周血细胞和网织红细胞等参数的变化，探讨其在ARS救治中的临床价值。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。