查询词典 first derivative

This can be done adding a penalty term into target function used in the standard BP algorithm, and the penalty term is related to the first derivative of the target function.

具体的做法是在标准BP算法中的目标函数项内增加一惩罚项来完成的，而此惩罚项与目标函数的一阶导数相关。

Robust design objective is always structural response′s first derivative, constraint functions are nonlinear functi...

鲁棒设计目标函数为结构响应的一阶导数，约束函数也是非线性隐函数，因此是多变量的非线性优化问题。

The results showed first derivative UV spectrophotometry was a simple, accurate and effective method to quantify VE in liposomes.

结果表明一阶导数紫外光谱法测量范围大，可测定较大浓度样品，并可消除膜脂材料对VE测量的影响。

The first derivative spectra have been applied to develop this model. This model has been optimized by selecting the best wavelength range and the most suitable factors.

为了优化模型，我们对白酒的近红外光谱进行一阶导数处理，选择最佳的波长范围和最适的因子数。

The simultaneous determination of iron and aluminium in quartz sand by first derivative spectrophotometry .

一阶导数光谱法同时测定石英砂中铁和铝的研究。

A first derivative spectrophotometric method is presented for the determination of fleroxacin in tablets, capsules and powder for rejection.

用一阶导数分光光度法测定了氟罗沙星片剂、胶囊和粉针剂中氟罗沙星的含量。

5D fault model based on the first derivative formula of the gravity anomaly of the vertical fault model.

3利用遗传最优化算法来求取三维任意倾角的断层模型参数。

A mark used as a super script to indicate the first derivative of a variable.

撇号置于右上角的符号，用以标明变量的第一个导数

The results indicate that the first derivative spectra are significantly correlated to nitrogen content.

用"秀水110"建立诊断模型，再用"协优9308"进行检测，分析一阶导数光谱与叶片氮含量的相关性。

Heart rate, systolic pressure, the first derivative of left ventricular pressure, coronary flow, and PR and QRS intervals were measured in isolated constant-pressure perfused, nonrecirculating Langendorff heart preparations.

心率、收缩压、+dP/dtmax 、冠脉血流及 PR 、 QRS 间期被测量于离体恒压灌流、非再循环豚鼠心脏标本。

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。