The molten polymer s entanglement network is assumed to deform nonaffinely and the transient network structural theory with the revised upper convected Maxwell constitutive equation is used to establish a new nonaffine network structural model of molten high polymer in a sinusoidal strain field.
在正弦应变作用下,假设聚合物熔体的缠结网络形变是非仿射的,运用瞬态网络结构原理,并对上随体Maxwell本构方程加以改进,从而得到一个适合于振动剪切作用下的聚合物熔体的非仿射网络结构模型。
12 artificial freezing tests are performed on silty clay samples for this investigation,and the experimental parameters consist of two kinds of cooling temperature models for artificial freezing(sine-varying and constant),three kinds of freezing directions(vertical freezing,lateral freezing and vertical-lateral freezing),and different water contents(23.
针对粉黏土冻胀速率的研究,共进行了12组人工冻结试验,试验中所采用的各种影响因素如下:两种人工冻结冷端温度模式——正弦变化冻结温度和恒定冻结温度,三个不同人工冻结方向——竖向冻结、侧向冻结以及复合冻结(竖向—侧向冻结),不同含水率——23。
The case of a harmonic oscillator driven by sinusoidally varying force is an extremely important one in many branches.
在许多领域中受正弦变化力策动的谐振子是一种十分重要的运动。
Axiomatic Definition of (Co)sine with Complex Variables;
复变量正余弦函数的公理化(等价)定义
Research on Multi-function Intellectualized High Performance Sine Wave Inverter Power Supply;
多功能智能化高性能正弦波逆变电源的研究
Research on sine and cosine transform of broad sense Fourier
广义Fourier正弦、余弦变换研究
an electric current that reverses direction sinusoidally.
正弦地改变方向的电流。
The Finite Element Analysis of Sinusoidal Time-Varying Field and the Optimum Design for Variable Frequency Motor;
变频电动机正弦时变场的有限元分析及优化设计
For simplicity, we assume E to be in the X direction and to vary sinusoidally in the Y direction.
为简单起见，我们假定E在X方向上，并在Y方向上正弦式地变化。
Inside the film, the field varies sinusoidally and the entire surface-wave mode propagates alone the horizontal Z direction.
在薄膜内，场按正弦函数变化，整个表面波模沿水平Z方向传播。
Rubber--Determination of dynamic properties of vulcanizates for classification purposes (by forced sinusoidal shear strain)
GB/T13937-1992分级用硫化橡胶动态性能的测定强迫正弦剪切应变法
The Development of an Intelligentized General Sine Inverter with the Function of Combination;
具有组合功能的智能化通用正弦逆变电源的研制
Software disign of sine inverter based on C51
基于c语言的正弦逆变器的软件设计
The Research and Realization of Domestic Sine Wave Inverter for Wind/Photovoltaic Complemental System;
户用风/光互补正弦波逆变电源的研制
Study on AC/AC Converter with 30kHz Sinewave Output;
30kHz正弦波输出的AC/AC变换器研究
Research on Small Size and Sine Wave Output Inverter for Solar Energy System;
小体积光伏户用正弦逆变电源的研究
Research on Control Method of Medium Frequency Sinusoidal Inverter Based on DSP;
基于DSP的中频正弦波逆变器控制研究
The Response of RL Circuit under Sinusoidal Excitation;
RL电路对正弦电压瞬变响应及其后果
The Research and Realization of High-frequency Sine Wave Inverter for Wind/Photovoltaic Complemental System
风/光互补高频正弦波逆变电源的研制
Novel soft switching sine-wave PWM inverter
一种新型的软开关正弦波PWM逆变器