查询词典 pointed complex

Quadratic phase coupling analysis is extended to complex domain in this chapter,〓-D spectrum method is adopted to obtain the coupling and coupled components separately by using different cumulant definitions of complex process. This property can be used to avoid confusion when multigroup quadratic phase coupling relationships are involved.

然后本章将二次相位耦合的研究拓展至复数域，通过改变复数信号三阶累积量的定义方式，分别在〓维谱中得到参加耦合的谐波分量和耦合产生的谐波分量，在同时存在多组耦合时，可以避免产生混淆。

It is reported in this paper that diphenylcarbazone reacts with Hg in pH 2.2 in the presence of Tween─60 to form a purple complex with its absorption maximum at 486 nm. The existence of chloride will depress the absorption of the complex. The negative absorption will be proportional to the consistence of chloride.

摘要﹞ 在pH为2.2的酸性介质中，在吐温－60溶液的存在下，Hg与二苯卡巴形成紫色的配合物，其最大吸收波长为486 nm，氯离子的存在可使原紫色配合物吸光度降低，其负吸光度与氯离子浓度成正比。

This paper presents three new concepts - complex attribute ideal value of alternative, complex attribute negative ideal value of alternative and satisfactory degree of alternative in uncertain multi attribute decision making, and gives a singular objective optimization model.

定义方案的综合属性理想值和综合属性负理想值，提出不确定多属性决策中的一个新概念——方案满意度，给出一种基于方案满意度的单目标最优化模型

On the one hand,we try to analyze, summarize and discuss that the complex near-surface brings negative impacts on seismic exploration; on the other hand, we want to provide necessary helps for the next field operation in complex area and how to adopt effective seismic technology.

要在复杂的地表与地下地震地质条件下获得较高品质的地震剖面，一方面要克服恶劣的地表条件给野外施工作业带来的影响；另一方面又必须较好地解决和攻克在地震勘探方法和技术上因复杂近地表因素而诱发的各种难题，如地震资料的信噪比很低，干扰类型复杂，静校正问题极为突出，速度分析、叠加成像和偏移归位及构造成图困难等。

In this method, EDTA was used as complexant which can form 1∶1 complex with Cr〓, this complex carried negative charge and can be detected directly by UV absorbance at 200nm, therefore, the CrO〓 and Cr〓 can be separated and determined in one run.

采用乙酸钠-乙二胺四乙酸钠-CTAB-乙酸缓冲液体系，加入EDTA使Cr〓与其生成的1∶1络合物，带负电荷且具有紫外吸收，在200nm处可用直接紫外法检测。

Around the topic, the weak points of the traditional platform is analyzed first, such as complex arithmetic, long calculating time, high needs of hardware and so on. A real time control method based on virtual simulation is suggested to separate the complex positive/negative calculation of space kinematic and real time motion control. And a"3-2-1"type 6DOF platform is designed with the reference of the MAST (Multi-Axis Shaking Table) of MTS. The kinematic and dynamic calculation of the platform is finished. According to the calculating result, the control system of the"3-2-1"type 6DOF platform including 6 linear servo electric cylinders is designed and constructed. And the professional software Pro/E is used to do the 3D model and 6DOF motion simulation of the platform. The motion curves of the pistons of the 6 cylinders are exported with the simulation. At last the control software is programmed with Microsoft Visual Basic 6.0 and realizes the functions with the commands of GE series motion controllers. When loading the motion curves exported with the simulation, every cylinder can follow the curve very well and the platform realizes the hoped 6DOF motion.

围绕选题，本论文首先分析了传统的运动平台控制方法所存在的算法复杂、解算耗时长、硬件需求高的缺点，提出了一种基于虚拟仿真的实时控制方法，该方法将复杂的空间运动学正、反解与实时运动控制相分离；之后，参考MTS公司的MAST多轴振动平台，设计了新型的"3-2-1"型六自由度平台，并进行了运动学及动力学计算，根据相关计算结果，设计与搭建了包括驱动6个直线伺服电动缸在内的"3-2-1"型六自由度平台控制系统；接着，使用Pro/E对"3-2-1"型六自由度平台进行了三维建模和六自由度运动学仿真，并由仿真直接获得了6个直线伺服电动缸的活塞杆的相应运动曲线；最后使用Microsoft Visual Basic 6.0编写了控制软件界面，通过调用GE系列运动控制卡的各种命令函数实现了控制系统的相关功能，而当加载仿真得到的各缸运动曲线后，每缸均能很好地跟踪输入曲线，使平台实现了期望的多自由度运动。

In chapter 4, the Newlands harmonic wavelet is improved and a new type of wavelet with better time-frequency characteristic is constructed. Frequency band of signal can be divided arbitrary with the improved harmonic wavelet so that the phenomena of aliasing are reduced. Several typical fault signals in Electromechanical System are analyzed with it. In addition to the improved harmonic wavelet in chapter 4, a new half-complex wavelet is presented to improve the complex wavelet, which is given by Chaari.O. A unilateral recursive algorithm is derived to improve the real-time characteristic. A parameter n is imported to make the time-frequency and filtering characteristics of it better and its ability of extracting fault feature is enhanced.

第四章通过对Newland谐波小波的改进构造频域紧支撑、时域性能良好的新型小波函数，可实现信号频带的任意划分，从而减少频带混叠现象，采用改进的谐波小波对多种典型的机电系统故障信号进行了分析；以Chaari.O复小波为基础构造了一个半复小波，从提高复小波算法的实时性出发，推导了半复小波单向递推算法，通过给原小波设置可调参数的方法，实现了一种能满足小波基本条件的复值小波，可以通过参数的调整调节小波滤波器在Hilbert空间的时频特性和相应的滤波性能，以加强半复小波对故障特征的提取能力。

The solvent effect of five azo-metal complex dyes in fourteen solvents was studied with Nicol theory for the first time, and the main factors affecting the absorption spectrum of azo-metal complex dyes were found.

首次用Nicol理论研究了五种金属络合偶氮染料在14种不同溶剂中的溶剂效应，找到了影响溶液中金属络合偶氮染料电子吸收光谱的主要因素。

With the innovation from complex to complex and the Internet going deep into every domain of peoples economic activity and living rapidly, Theory of Networked Team Innovation emerges as the times require. This dissertation presents a thorough study on the theory of NTI and its key techniques.

本文针对网络群体创新的理论方法、关键技术进行了深入的研究和探索，提出了以网络智暴法为核心的网络群体创新理论框架，并在此基础上构建网络群体创新应用系统。

These Fos-immunopositive neurons were intensively distributed in different subnuclei of the vestibular nucleus complex (including medial, superior and spinal nuclei), nucleus of the solitary tract, locus coeruleus, medial and lateral parabrachial nucleus of the brainstem, paraventricular nucleus of the diencephalons and the amygdala of the limbic system;(3) The expression of Fos protein can be scarcely detected around forementioned regions in brains of the rats following complex two-axes rotation stimulation after the bilateral labyrinthectomy.

结果显示：(1)正常对照组和双侧迷路毁损组大鼠的脑内均未检测到Fos样免疫阳性产物；(2)两轴旋转刺激组的大鼠在给予复杂的围绕两轴旋转的加速度刺激后，在大鼠脑和脑干的多个核团内均可检测到Fos样免疫阳性神经元，其阳性产物主要表达于细胞核。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。