上微分

Methods In the base of hill's three factors muscle model, this paper uses the method of differential coefficient and linear approach.

在Hill二元素肌肉模型的基础上，利用微分和线性拟合的方法，最终获得了骨骼肌在不同应变率下的应力－应变本构方程。

In this paper,we consider necessary conditions for optional control of second order ordinary differential equation with coefficient control and two point boundary value,thenobtain the inequality of variation.

在这篇文章中，我们考虑控制出现在最高阶系数上二阶常微分方程系统最优控制满足的必要条件，得到了最优控制满足的变分不等式。

Professor Chen Xingshen made distinguished contribution in Integral differential coefficient , that influenced development of the whole mathematics.

陈省身教授在整体微分几何上的卓越贡献，影响了整个数学的发展，曾先后主持、创办了三大数学研究所。

Based on complicate data analysis we obtained experimental elastic scattering cross section of 〓He as well as double differential cross section and angle distribution of 〓He fragment from 〓He breakup reaction.

通过复杂的数据分析提取了〓He的弹性散射实验截面和〓He破裂反应产生的〓He的双微分截面及角分布，首次提供了〓He在〓Be靶上的中能破裂反应数据。

The theoretical prediction of the differential cross section is obtained. Unlike 13C, there are no experimental data available at present to examine this prediction.

假设13N是单粒子的2p态的结构，用Glauber多重散射理论计算了1GeV的质子在13N上弹性散射的微分截面，研究了13N的类晕结构。

With the J/y anomalous suppression as a signal of QGP phase transition, on the basis of absorption of nucleons and comovers, the differential cross section of J/y production in high energy heavy ion collisions under the condition of the occurrence of phase transition is derived out, and the experimental data of NA50 collaboration in Pb-Pb collisions at 158A GeV/c is analysed.

以J/y反常抑制现象为夸克-胶子等离子体相变信号，在核与随动者吸收理论的基础上，导出了有相变产生时高能重离子碰撞中的J/y微分产生截面，并对NA50合作组给出的入射动量为158A GeV/c的Pb-Pb碰撞中的实验数据进行了分析，较好地解释了实验结果。

Which is called the arc differential of the curve.

设函数在区间内具有连续导数，且曲线上点的弧长为，则弧长的微分是。

The deflection curve differential equation of beam body structure on elastic foundation is solved, relationship of variables between its internal force and coefficient of elastic foundation is formulated.

通过求解弹性基础上梁体结构挠度曲线微分方程，建立了梁体结构内力与基础系数间的关系，分析了混凝土徐变等特性对梁体应力的影响。

The Gompertz model is derived based on differential equation of growth-type curve, in order to get a method for prediction of production rate, accumulative production rate, recoverable oil, peak annual production rate and corresponding time of solution gas in oilfield, and determine the valid applicable range in field.

基于增长类型曲线微分方程，对实用的Gompertz模型进行了推导，得出了预测油藏溶解气产量、累积产量、可采储量、最高年产量及其对应时间的方法，并在矿场应用分析基础上确定了该模型的有效适用范围。

Based on these experimental spectra, desorption activation energies of benzene, thiophene, and octane on NaY were calculated by a traditional model, the least-squares method, and the first differential curve of the TPD model.

以这些TPD谱图为基础，分别采用传统TPD计算模型、最小二乘法以及一阶微分曲线法计算了苯、噻吩和正辛烷在NaY上的脱附活化能和动力学参数。

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。