Evaluation methods of scale inhibitors in the cooling water 循環(huán)冷卻水用阻垢劑性能的評定方法
Impression method of scale mounting 印紋魚鱗保存法
Study on a new evaluation method of scale inhibitors based on solution conductivity measurement 溶液電導(dǎo)率法快速評定阻垢劑性能的試驗(yàn)研究
At present scale inhibitors have already been used as one of the most usual methods of scale controlling 使用阻垢劑已成為目前控制結(jié)垢最常用的方法之一。
Secondly , we investigate the nonlinear dynamics if the system by using the multiple method of scale , and discuss the stability of the steady - state solution 其次對系統(tǒng)進(jìn)行了非線性動力學(xué)的分析,利用多尺度方法獲得了一次近似響應(yīng),討論了定常解的穩(wěn)定性。
( 3 ) we investigate the nonlinear dynamics of the rotor - ambs system in 1 / 3 and 1 / 2 subharmonic resonances . using the multiple method of scale , the averaged equations of the rotor - ambs system are obtained ( 3 )利用多尺度方法,研究了電磁軸承-轉(zhuǎn)子系統(tǒng)的1 3亞諧共振和1 2亞諧共振情況下的非線性動力學(xué),得出了兩種共振情況下的頻幅響應(yīng)方程。
( 3 ) we investigate the nonlinear dynamics of the inverted pendulum system in 1 / 1 internal resonance and 1 / 2 sub harmonic resonance . using the multiple method of scale , the averaged equations of the inverted pendulum system are obtained ( 3 )應(yīng)用多尺度方法研究了倒立擺系統(tǒng)在內(nèi)共振和1 / 3亞諧共振情況下的非線性動力學(xué)響應(yīng),得出系統(tǒng)的平均方程,得到了系統(tǒng)的頻率響應(yīng)方程,對周期解和局部分叉進(jìn)行了分析。
In chapter two , theories and methods of scale economy , scope economy , the cost precipitates , network hustle are used to analyze systematically technical and economic characteristics of power industry , especially nature monopolization and commonality goods characteristics that directly influence electric market structure 第二章運(yùn)用規(guī)模經(jīng)濟(jì)、范圍經(jīng)濟(jì)、成本沉淀性、網(wǎng)絡(luò)擁擠性等理論方法系統(tǒng)地分析了電力產(chǎn)業(yè)的技術(shù)經(jīng)濟(jì)特征,尤其是直接影響電力市場結(jié)構(gòu)的自然壟斷性和公共物品性。
The multiple method of scale is used to obtain the averaged equations in primary parameter resonance . from the averaged equations , the theory of normal form is applied to find the explicit formulas of normal form associated with a double zero and a pair of pure imaginary eigenvalues with the aid of the maple program 利用多尺度方法得出了主參數(shù)共振情況下的平均方程,利用normalform理論對具有雙零特征值和一對純虛特征值的平均方程進(jìn)行了簡化,得到了平均系統(tǒng)的normalform 。