查询词典 abel summation method

In this paper, arrangement scheme of a novel multi-star phase shifted pole changing coil was given and the methods to determine coil split ratio were analyzed. According to electromagnetic theory, 2D electromagnetic mathematical model in which stator windings were spitted coil was developed, and magnetic field distribution of the novel motor at starting was solved by finite element method, starting performance of motor was calculated. Based on energy method, rotor slot leakage reactance under different poles and different loads were calculated, and the variation of rotor slot leakage reactance with loads was gotten. Based on time-step finite element method, distribution of branch current in stator windings and operating performance were calculated and analyzed when branch was unbalance, the method to calculate circulating loss in stator windings of novel multi-star phase shifted pole changing motor was given, and the effects of the loads variation and degree of unequilibrium on circulating loss in stator windings were calculated and analyzed.

论文系统的给出了采用分裂线圈法新型多星形移相变极绕组的排列方案，进一步分析线圈分裂比的确定方法；根据电磁场理论，建立了定子为分裂线圈绕组的电机二维电磁场数学模型，并采用场路耦合法求解了新型多星形移相变极电机起动时的磁场分布，计算了电机起动性能和基于能量法计算了不同极数下起动时转子槽漏抗和不同负载时转子槽漏抗，得出转子槽漏抗随负载变化的规律；采用时步有限元法计算分析了定子绕组支路不平衡时支路电流的分布情况及运行性能，给出了新型多星形移相变极电机定子绕组环流损耗的计算方法，分析比较了负载的变化和支路不平衡度大小对定子绕组环流损耗的影响。

The method is based on a variable structure to control the SVC, wherein, the variable structure control method comprises two aspects of the unbalanced load equalization compensation and the parameter control of a PI controller, wherein, the unbalanced load equalization compensation adopts the SVC compensation susceptance computational method which is based on the synchronous rotation reference coordinate transformation of a virtual symmetrical three-phase system; meanwhile, in the stabilization control of the system voltage, the ant colony algorithm optimization method is adopted to real time adjust and to optimize the parameter kp and ki of the PI controller.

本发明公开了一种静止无功补偿器的不平衡补偿和蚁群优化方法，基于变结构对静止无功补偿器SVC进行控制，其中变结构控制方法包括不平衡负荷平衡化补偿和PI控制器的参数控制两个方面，其中不平衡负荷平衡化补偿采用基于虚拟对称三相系统的同步旋转参考坐标变换的SVC补偿电纳计算方法；同时在系统电压稳定控制时，采用蚁群算法优化方法，对PI控制器的参数kp、ki进行实时调整、寻优。

Fhe second part elaborates the procedure and the method of this cxpcriment.According to the achievement analysis of the final English examination (July, 1999) for Junior One in Wuzhou CLty, we applied the English Learning Strategies Inquiry Paper(Oxfoxd, 1993) to alt the samples. After being made t-Test~ to make sure that they have no obvious dissimi Ian tics in English achievement and strategies level,3 experiment classes and 3 contrast classes are chosen and dovided to 3 groups. Then they are trained half a year in 3 different ways:Group instructing Method, Self-learning---3--and-discussing Method and Permeating-in-teaching Method. The thirt part------Results and Analysis.

研究结果表明，不同的策略训练方祛、不同性别、不同成绩以及不同的训练时间对训练的效果均有不同程度的影响。1、分组指导法、自学讨论法和随堂渗透法这三种训练方式取得了不同的训练效果。2、从整体上说，男、女生英语学习策略的短期和长期训练效果都非常显著，但自学讨论法学生的短期学习策略训练效果存在性别差异。3、在不同成绩组学生的英语学习策略训练中，其短期训练效果有显著的差异，但其长期训练的效果则基本一致。4、英语学习策略训练的时问长短不同，训练效果的大小就不同。

The computer has been played an important role in the model and method exploration of music educational, which caused the quantitive leap from the traditional teaching method to the modern one in music education. But it also have some urgent problems need to solve in the practice: the unbalancement between the computer popularization and the digital music technology method; The multimedia technology replaces all or the majority of teaching method, reduced or even neglected teachers leading role and so on.

计算机在音乐教学模式和手段的探索中起到了举足轻重的作用，使音乐教育的传统教学发生了质的飞跃，但在实践中也出现了1些急需解决的问题：电脑的普及与数字音乐技术手段普及之间的不平衡、多媒体技术代替所有或大部分教学手段，降低甚至忽略了教师的主导作用等问题。

Second, Unexpectable situation such as bad weather or apparatus problems will cause some other cases, for example, tidal level data cant be measured completely or contains great errors. Aim at these cases, according to multiple harmonic analysis method, this paper presents a new method for the iterative harmonic analysis of tides based on the least square method of continuous function, as well as the condition when this method converges.

第二、针对恶劣天气或仪器等意外情况导致潮位数据缺测或者具有重大误差等情况发生时，根据多次调和分析方法的思想，给出了基于连续函数最小二乘法的潮汐迭代调和分析方法，给出了方法收敛的条件。

In this paper, some methods of fuzzy mathematics suah as the direct method of fuzzy pattern recognition, the method of fuzzy clustering analysis the method of fuzzy information retrieval, and the recently advanced method of fuzzy fractal dimension have been applied to earthquake monitoring and prediction in the Surrounding Capital Area based on the seismicity and earthquake precursors. The seismic and unseismic precursors before both the Tangshan M=7.8 great earthquake in July, 1976 and the Datong-yanggao M...

本文把模糊数学中的模糊模式识别的直接方法、模糊聚类分析方法、模糊信息检索方法和新近提出的模糊分维方法应用到以地震活动性和地震前兆为基础的首都圈地震监测预报当中，分析研究了发生在这一地区的两次大地震，即1976年唐山7.8级和1989年大同6.1级地震前用模糊数学方法识别出的地震学前兆和非地震学前兆，并对这一地区大地震的长期和中短期模糊预报方法与途径进行了简要的讨论。

Urban Remnant Natural Area is left behind in the urban planning area along with urbanization. Its landscape assessment is significant for urban natural preservation. On the basis of URNA's characteristics and in line of the domestic actual situation, psychophysical method, one of the most scientific and credible methods, is chosen to establish the complete landscape assessment system, including acquiring scenic beauty value by SBE method, dividing into different influencing factors by SD method, and setting up their connection model by multiple linear regression analysis. This method is also revised during the application process.

城市自然遗留地是随着城市化的进程在城市规划区内遗留下来的用地，根据城市自然遗留地城市性、自然性和遗留性的特点，结合国内的实际情况，运用目前最严格、可靠性最好的心理物理学方法，以相片为测试材料，采用SBE法获得美景度量值，SD法测定各景观要素量值，以及多元线性回归方法建立2者的关系模型，最终提出了城市自然遗留地景观美学评价完整的方法体系，并修正和完善了心理物理学方法在城市自然遗留地领域的具体应用。

In this dissertation, the author analyzes corporate opportunity doctrine deeply on the base of the basic theory, and it focus on defining corporate opportunity doctrine and regulating usurping corporate opportunity doctrine. In this dissertation, the author uses the comprehensive analysis methods such as empirical analysis method, comparative analysis method, value analysis method and standardized analysis method.

本文综合运用了法律的实证分析、比较分析、价值分析及规范分析的研究方法，以公司机会规则的一般理论为基础，以公司机会的认定和篡夺公司机会的法律规制为重心，较为深入地分析了公司机会规则。

DNA extraction quality of Venturia inaequalis using CTAB method,SDS method,Parker's method and modified SDS method was detected by ultraviolet spectrometer.

采用CTAB法、SDS法、Parker法及改进的SDS法提取苹果黑星病菌的DNA，经紫外分光光度计测定，改进SDS法提取的DNA得率较其他3种方法高，约为Parker法的2倍。

To overcome the bad effect resulting from the nonlinearity time-variability and uncertainty on autopilot system performance during the motion process of aerodynamics missile, and to further improve the flight quality of missile, the autopilot system and used control method are researched. Firstly the integrant structure of system is discussed; then baaed un introducing the traditional PID method, controllers for missile attitude motion are designed respectively using fuzzy self-turning PID method and neural network self-adaptive PID method; at last a simulation experiment is finished. By comparing the simulation results that the designed controllers have good qualities is showed, and the feasibility and validity of applying fuzzy control and neural network into automatic control of aerodynamics missile is confirmed, and the base that other nonlinear control theory can be combined with the traditional control for missile to further improve the performance of missile control system is established.

为了克服飞航导弹运动过程中的非线性、时变性和不确定性对自动驾驶仪系统性能的不良影响，进一步提高导弹的飞行质量，对自动驾驶仪系统及其采用的控制方案进行了研究；首先对系统的整体结构进行了分析，然后在介绍经典PID方案的基础上，分别采用模糊自调整PID方案和神经网络自适应PID方案设计了导弹姿态运动控制器，最后进行了仿真实验；仿真结果的对比展示了所设计控制器良好的品质，验证了将模糊控制和神经网络应用于飞航导弹自动控制中的可行性和有效性，为其它非线性控制理论与导弹传统控制相结合以进一步提高导弹控制系统的性能奠定了基础。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。