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However, because of the positive sequence of fundamental frequency, there are still some shortages for wavelet transform in the use of harmonic measurement of three-phase dissymmetrical system. A new approach of harmonic measurement based on Period-interleaving of MALLAT arithmetic for dissymmetrical system is put forward. Analysis and experiment based on TMS320LF2407 Digital Signal Processor are made. And the result of experiment reveals that the proposed method based on Period-interleaving is valid in the use of harmonic measurement of three-phase dissymmetrical system.

但是,目前小波变换在三相不对称系统的谐波检测中存在着无法分离基波正序信号的不足,本文就此提出了一种用于三相不对称系统的基于周期交错的小波MALLAT多分辨率分解的测量方法,详细介绍了该算法的原理、流程及计算公式,同时以TMS320LF2407数字信号处理器为核心建立了实验系统对该算法进行了实验,实验结果证明该周期交错-小波变换算法可以有效地检测出三相不对称系统中的有害电流。

Taking advantage of gauge transformation and dipolar approximation, we qualitatively derive rotating Bose-Hubbard model.Then finite temperature phase boundary between superfluid phase and normal state in rotating Bose-Hubbard model is analytically derived by studying the stability of normal state in rotating bosonic optical lattice.We also analytically prove that as the function of rotation angular velocity the oscillation of critical hopping matrix directly follows the upper boundary of Hofstadter butterfly.

4通过做一个规范变换和偶极近似,定性地推导了旋转Bose-Hubbard模型,并且通过研究正常态不动点的稳定性推广了旋转Bose-Hubbard模型的零温相图到有限温度的情形;另外根据系统有效的能带宽度与旋转速度的关系(Hofstadter蝴蝶),得到了系统的临界跃迁矩阵随旋转速度的改变展示谐振行为的结论。

Pre-Sinian of Huabei Platform was in the phase of geosyncline development and became stabilized in Sinian, then turned to platform development phase.

华北地台前震旦纪为地槽发展阶段,震旦纪开始稳定,并转向地台发育阶段。

HPLC was used to determine harmine concentration in the oral emulsion or in tissues of mice. Stationary phase: Shim pack CLC ODS column; mobile phase: acetonitribe methanol phosphate buffer (pH6.8)(30∶30∶40); mobile speed: 1.0 mL/min; detection wavelength: 300 nm; column temperature: 20℃.

采用高效液相色谱法测定口服乳剂中的harmine含量和各脏器组织中的药物浓度;色谱柱Shim pack CLC ODS柱,流动相为ψ[乙腈∶甲醇∶磷酸盐缓冲液(pH6.8)]=30∶30∶40,流速1.0 mL/min,检测波长300 nm,柱温为室温。

But during test plan preparation phase, it is very often seen that test managers and his/her subordinates would heedlessly prepare the document with most of the contents of the document copied from previous projects or from arbitrary template available in the internet and proceed to the next phase without giving any prominence to those requirements/specificati** mentioned in the test plan.

但在测试计划的准备阶段,测试经理及其属下在准备文档时通常会掉以轻心,文档的大部分内容要么是从以前的项目中复制过来的,要么是从网上找来的任意模板;对测试计划中提到的需求说明不予任何关注就直接转移到下一阶段了。

3Several semicontinuous phase transitions in SC model by tracing the Hessian matrix and the corresponding phase diagram in BC model.

4对一些在SC模型下的不连续相变,我们直接在BC模型下进行了计算。

From these researches as above, this paper found a new method to analysis salty soil road engineering properties by phase equilibrium theory, which provides a new angle of analysis on salty soil properties, experiment and engineering practice in these ways as follows:(1) Analysis the disadvantage of traditional salty soil experiment;(2) Analysis the disadvantage of current salty soil definition by phase equilibrium theory, and gives the chart of distinguish salty soil by the condition of hydrography and climate change;(3) Analysis the mechanics of subgrade frost boiling based on the change rule of liquid content;(4) Based on the change rule of ingredients content and volume in salty soil, analysis the mechanics of subgrade salt heaving and the restraining method by adding sodium chloride.

通过以上研究,本文初步建立了以相平衡理论为核心的盐渍土路用工程性质分析方法,该方法对盐渍土工程性质的理论分析、试验研究以及工程实践提供了新的研究思路与方法,具体体现在:(1)分析了传统的盐渍土试验存在的缺陷;(2)分析了现行盐渍土定义的不足,并以相平衡理论为基础,结合水文、气候条件的变化给出了判别盐渍土的诺谟图;(3)分析了盐渍土盐溶液含量的变化规律,并从盐渍土含液量变化规律出发,分析了盐渍土路基较非盐渍土路基翻浆严重的机理;(4)分析了盐渍土各固相含量及其体积的相变规律,并在此基础上分析盐渍土路基的盐胀机理,以及采用添加氯化钠来抑止硫酸盐盐渍土的盐胀机理

The experimental results show that manganese is dispersed in the intermediate phase.With the increase of MnO2 mixture,the iron content in clinker will be increased while C3A and C3S contents decreased,and the incipience of liquid phase will have higher temperature.

试验结果表明,锰主要分布在中间相,随着MnO2外掺量的增多,熟料中铁相含量增多,C3A及C3S含量减少,液相大量出现的温度升高。

The measurement error of phase shifting method is calculated.It is concluded that if 5 frames are used per time, in order to achieve 0.3° precision inphase measurement, phase shifting error must be limited in± 0.1° plus at least 60dBsignal to noise ratio.

同时,还进行了相移检测法的初步误差分析和模拟研究,结果表明:采用5幅图像的方法,要实现0.3°的检相精度,就要求相移误差在±0.1°以内,信噪比为60dB以上。

The principle of genetic algorithm and the process of optimization of mobile phase composition in reversed-phase ion-pair high performance liquid chromatography using genetic algorithm are introduced in details.

详细介绍了基于线杂交和面变异的遗传算法的原理及其用于液相色谱分离条件优化的过程。

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