Constant suction is maintained by mini tornados in a series of tubes 一系列管子中形成的微小龙卷风为它提供了持续的吸力
An analysis of the time constant of transient process in the RC series circuit RC串联电路暂态过程时间常数的分析
The constant theme of the series was a drawing of a human face in close up and each one with an oxygen tube in the right nostril. 这组创作主题单一的画面,是正面直视你的人脸的特写,每个人经右耳到右鼻孔边连接着一根氧气管。
Calculation of Elastic Constant and Effective Mass of Massive Springs in Series 非轻质多弹簧串联系统的有效质量和劲度系数计算
With global resource shortage, the constant deterioration of the ecological environment, survived and brought a series of influence and challenge for the mankind. 随着全球资源短缺,生态环境的不断恶化,给人类生存带来了一系列的影响与挑战。
Constant current charging machine using LC series resonance LC串联谐振恒流充电系统
Constant power controlling method with half-bridge inverter of thyristors in series connection 晶体闸流管串联半桥逆变器的恒功率特性控制
A new approach for Fraunhofer grating diffraction of color spectra is presented. By using gratings with different grating constant, different series of diffraction configuration of mercury color spectra is obtained. Excellent efficiency is gained obviously. 提出一个彩色光谱新的Fraunhofer光栅衍射方法,通过选用不同常数的光栅进行衍射,可以得到不同级数、不同衍射谱线的水银彩色光谱,直观地达到衍射效果。
In this paper we present an essentially analytic method for solving four layer planar optical waveguides by using the asymptotic theory which expands the propagation constant into asymptotic series in terms of a small parameter. 该文用渐近解析方法求解四层平面介质光波导问题,它将特征方程以一个小参量的级数展开,从而得到传播常数的一阶至三阶近似解。
A differential equation with constant coefficient is obtained by Termwise differentiation on the sum function of power series in this method, and the sum of constant series is able to be solved from the general solution of differential equation. 该方法运用逐项微分法将幂级数的收敛和函数转化为相应的常系数线性微分方程,求出微分方程的通解从而得到相应常数项级数之和。
It is shown that fine-structure constant and series of characteristic value of relation in the atomic system, and is pointed on its important meaning. 本文就精细结构常数与原子体系几个特征量的关系,讨论了精细结构常数在原子结构中的重要意义。
In this article, a method of solving the summation of a special constant series is given with the power series. 本文介绍了一种通过构造幂级数求解常数项级数和的方法。
Fine-structure constant and series of characteristic value of relation in the atomic structure 精细结构常数与原子结构若干特征量的关系电磁六极透镜的结构常数
In QL oilfield of Tu-Ha basin, along with the constant development of oil/ gas development, we met a series of problems such as difficulty in determination of oil layer connectivity and relationship between injected and produced fluid, which constrained development progress. 在吐哈盆地QL油田,随着油气开发的不断展开,遇到了油层连通性、注采关系难以确定等一系列问题,制约了开发进程。
The paper presents a new modeling method applied to fault diagnosis for constant linear closed-loop system by taking the impulse response series as the system model, and provides the calculation process of the method and output of model. 提出了以系统脉冲响应序列作为闭环系统模型的建模方法,并且给出了这种建模方法的计算方法以及模型输出的计算方法。
Euler's Constant and Sum of Series Euler常数与级数和
The stresses and displacements near the crack tip are expressed as analytical complex functions, which can be represented in power series. The constant coefficients of the series are determined with boundary conditions. 裂纹尖端附近的应力和位移被表达为解析复函数的形式,而复函数可以表达为幂级数的形式,幂级数的系数由研究问题的边界条件来确定。
One method of calculating integer of constant series 一种常数项级数求整的方法
Based on the study of the relationship between the bit rate for video coding and the content complexity, this paper presents a new quadratic rate distortion model for video coding, which retains the constant term in Taylor series. 基于对视频编码比特率与内容复杂度之间关系的研究,该文提出了一种新的视频编码二次率失真模型。
This paper describes principle of a capacitor charging with approximate constant current power supply using a series resonant topology. The effect factor of the error voltage is discussed. Experimental results and waveforms are given at last. 阐述了应用串联谐振技术,以近似恒流给电容器充电的电源基本原理,讨论了影响电容器误差电压的因素,最后给出了实验结果及实验波形。
The Lie series is a power series in which the initial conditions are part of the constant coefficients of the series. This property makes the Lie series appropriate for the study of systems of differential equations that are sensitive to initial conditions. Lie级数是常微分方程的以初始条件为系数的幂级数解,它适于微分方程的性态的研究,并易于说明其对初始条件敏感的混沌性;
Differential Method Application in Solving Summation of Special Constant Series 微分法在一类特殊常数项级数求和中的应用
Both continuous grinding and continuous flotation related to material transmission process, so residence time distribution block of complete mixing flow of N constant volume in series was built up as an example. 连续磨矿、连续浮选过程都涉及到物料传递过程,以N级等容串联全混流为例开发了它的停留时间分布模块。
Several special methods about the sum of the constant series 关于数项级数求和的几种特殊方法
Optimized local constant prediction with application on financial time series 金融时间序列局部预测算法的优化
The phase variance and error caused by frequency change, which exist in the experiment of measuring dynamic Young modulus by resonance method, are analyzed. By connecting coil and AC constant current source in series, the experiment device is improved. 指出了共振法测定动态杨氏模量实验中存在相位不一致且频率变化引起的误差,提出了在输入端串接补偿线圈和交流恒流源的改进方法。
The principle of the traveling wave induction launcher and the constant current characteristic of the series resonant circuit are analyzed by applying the electromagnetic launch theories. 应用电磁发射理论,对行波感应发射器的工作原理以及串联谐振的恒流特性进行了理论分析。
Silicon nitride has high strength and hardness, high temperature 、 corrosion and wear resistance, anti-oxidation, thermal shock resistance, low dielectric constant and a series of excellent performances, it is regarded as the most promising next-generation high-temperature wave-transparent materials. 氮化硅具有高强度、高硬度、耐高温、耐腐蚀、耐磨损、抗氧化、抗热震、介电常数较低等一系列优良性能,被视为是最有希望的新一代高温透波材料。