查询词典 differential calculus

Adopting Lorentz-invariant coupling model of neutron-antineutron and neutral meson strong interaction, we have physical analysis and accurate calculation on the neutron and antineutron to two neutral meson renormalization chain diagram propagator, and acquire the theoretical result; furthermore, after application of it to the physical process analysis and cross-section evaluation in this reaction , the differential cross-section of which is given. Moreover, through the comparison among this calculation and those scenarios: neutron-antineutron tree diagram and renormalization chain diagram propagator contribution, some important information about radiative correction was obtained.

采用中子-反中子与中性介子强相互作用的Lorentz不变耦合模型，对中子反中子重整化链图传播子作了有关物理分析及其严格解析计算，获得精确理论计算结果；进而将此结果用于中子反中子反应生成两个中性介子反应的物理过程分析及其截面的计算研究中，并精确计算出中子反中子重整化链图传播下中子反中子反应反应微分截面；最后还将此计算结果与中子反中子树图和重整化单圈链图传播下该反应微分截面作了对比分析，获得了有相关辐射修正的重要信息。

In the second method, the nonlinear tracking differentiator is applied to producing the differential signal of the pitch angle, which is used to calculate the pitch angular rate.

给出了两种重构方法，一种是通过建立等效的线性模型，设计线性状态观测器重构状态信号，另一种是使用非线性跟踪微分器方法，通过跟踪俯仰角的微分信号来计算俯仰速率信号。

This paper addresses the control problem of a variable speed wind turbine system in above rated wind speed which uses pitch angle control of the blades and delay angle control of the rectifier,with special emphasis on the differential geometric theory.

讨论了在额定风速以上时变转速风力机的控制问题，系统采用基于微分几何理论下的桨距角和触发角双输入控制。

This voltage is useful as a differential measurement of temperature from ambient and not as an absolute measurement of temperature.

这个电压是从周围环境的温度差测量，而不是作为一个有用的绝对温度的测量。

The main component dehydroabietic acid and little component abietic acid, neoabietic acid, levopimaric acid and pulustic acid of a few types disproportionated rosin were determinated quantitatively by selecting the proper order of derivative, differential wavelength difference, scanning rate and quantitative method.

通过选择合适的求导阶数、微分波长差、扫描速度和定量方法，对不同批号的歧化松香中的主成分脱氢枞酸和微量组分枞酸、新枞酸、左旋海松酸及长叶松酸进行了测定(其中左旋海松酸和长叶松酸测定的是合量)，实验结果令人满意。

By means of relevant methods and theorems in the qualitative theory of differential equations, traveling wave solution of a compound Burgers-Korteweg-de Vries equation is studied.

利用微分方程定性理论的相关方法和定理，对一类复合Burgers-Korteweg-de Vries方程进行研究，获得了方程行波解的存在性和唯一性，并给出了方程行波解的表达式，与此同时，研究了行波解的动力学行为和它们不同解的分岔。

Toscana irus meningo-encephalitis should be included in the differential diagnosis of holidaymakers with neurological symptoms returning from the Mediterranean.

托斯卡纳病毒脑膜脑炎的特定诊断包括从地中海地区回来的有神经学症状的旅游者。

Secondly, the governing differential equations of free vibration of non-uniform Timoshenko curved beams was derived.

第二，推导了变截面Timoshenko曲梁自由振动的微分控制方程。

By analysis of the beam element, the governing partial differential equations of transverse vibrations of Timoshenko beam are derived by Newton's second law for the three kinds of boundary conditions.

首先通过对梁微单元体的受力分析，利用牛顿第二定律导出Timoshenko梁横向振动的偏微分控制方程和三种约束边界条件。

The transmission of heat differential equation for the heat conduction process of thermoelectric module was derived And the solution with the first kind boundary conditions under the influence of Thomson effect and the solution with the third kind boundary conditions without the influence of Thomson effect was obtained.

导出了电偶臂在电与热的偶合作用下传热微分方程，并对其进行解析求解：在考虑汤姆逊效应的影响下得出一类跟三类边界条件下传热方程的解析解，在忽略汤姆逊效应的影响下得出二类跟三类相的边界条件下传热方程的解析解。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。