以案例分析模式阅读西方建筑历史

该文尝试以案例分析模式探索西方建筑历史,以一个隐含古典精神的现代建筑案例分析为例,试图建立起一种真正超越风格层面的阅读,以期通过微观研究模式对传统的西方建筑历史宏观研究模式起到补充。     

关于汉密尔顿最短路径的算法

提出了一个对业已存在的赋权汉密尔顿回路进行优化的算法.该算法以经典算法的解为起点,寻找其局部极值点,极大改进了经典启发式算法的性能.该算法属半多项式算法.图 8表1参2     

Cross border Classical Swine Fever control: Improving Dutch and German crisis management systems by an integrated public-private approach

The objective of this research approach is to analyse in which ways crisis management measures against Classical Swine Fever (CSF) can be improved by a public private cross border model. A core activity contains the analysis of information and communication systems: In a case study it has been empirically analysed if a sufficient supply of public and private information enables crisis managers at both sides of the Dutch-German border area to take decisions about CSF control more efficient. At the end of this approach a new crisis management model had been developed. One of the most important aspects thereby is the assessment of data: (1) within private quality management systems in normal times according to the benefit for public management tasks in times of crisis and (2) within public crisis management systems according to the benefit for cross-border CSF-control activities. To this effect two different methodological approaches have been combined within the model: (1) a method to identify and illustrate public actors and their options in crisis management decision making and (2) a system of communication and information exchange between public and private as well as Dutch and German actors (engage& exchange model) which permit to collect and to evaluate data in addition for a predefined time period are activated. Received: September 30, 2008; accepted: October 1, 2008     

Optimized techniques for driving and control of the switched reluctance motor to improve efficiency

This work presents modeling, driving and classical speed control techniques for the switched reluctance motor. The aim is to improve the computational model, the control response and the machine efficiency. A parametric regression model was used to find the inductance profile of the switched reluctance motor and from the new inductance profile model. The drive and control techniques are shown: (i) with speed control acting on the excitation voltage and fixed switching angles, (ii) with speed control acting on the switching angles and fixed excitation voltage and (iii) with speed control acting on the excitation voltage, in this case, with dynamic switching angles and controller parameters. The inductance profile is represented by expression and inserted into the machine computer model, allowing greater precision and low computational cost. The speed control acting on the excitation voltage with dynamic controller parameters and dynamic switching angles allowed: (i) shorter response time for a wide range of control, (ii) higher efficiency, (iii) low computational cost and (iv) simplified implementation and maintenance. The techniques proposed in this work obtained precision of the computational model with respect to the system (in workbench) and optimized parameters in a wide range of the speed control, allowing an improvement of switched reluctance motor efficiency.     

国外经典教材和课堂经验对“信号与系统”双语教学的启发

“信号与系统”是高等学校本科教育中与通信工程、计算机科学与技术以及控制工程等学科有关的各专业的一门重要的专业基础课程。它对理工科学生自学能力、分析问题和解决问题的能力的提高,对学生科学思维、实践技能和综合素质的培养有着深远的影响。而随着我校的国际化发展趋势和学院学科评估及培养计划改革等举措的逐步深入,“信号与系统”转变成为一门重要的专业发展选修课程。但是,该课程在达成学生理论、计算和操作三方面的重要意义丝毫不减,加之该课程源于国外经典教材,因此更加具备了国际化背景,成为国内学生探究和掌握相关学科领域专业词汇和地道表达的“抓手”性课程。     

A novel combined model based on hybrid optimization algorithm for electrical load forecasting

Accurate electrical load forecasting always plays a vital role in power system administration and energy dispatch, which are the foundation of the smooth operation of the national economy and people’s daily life. Thinking from this vision, many scholars have made great efforts to seek suitable optimization algorithms to improve the performance of existing forecasting algorithm. However, most of the studies ignore the inherent disadvantages of single optimization algorithm, which leads to sub-optimal forecasting performance. Therefore, a novel electric load forecasting system was successfully proposed in this paper by the combination of data preprocessing, hybrid optimization algorithms, and several single classical forecasting methods, which successfully overcomes the defects of single traditional forecasting models and achieves higher forecasting accuracy than that of single model optimization. Besides, the 30 min interval data of Queensland, Australia from March to April is used as illustrative examples to evaluate the performance of the developed model. The results of tests demonstrate that the proposed hybrid model can better approximate the actual value, and it can also be employed as a useful tool for smart grids dispatching planning.     

古典园林的启迪--析中国古典园林对现代建筑设计之影响

通过对我国古典园林设计理念及空间处理手法的解析,探讨中国古典园林对现代建筑设计之影响.结合国内外优秀现代建筑实例,剖析现代建筑设计是如何从中国古典园林中汲取营养的,并进一步指出,我国传统造园艺术的技巧和手法,对现代建筑创作具有指导意义.     

江南古典园林厅堂建筑的空间设计

中国古典园林“咫尺山林”的特点，不仅体现在园林掇山理水的山林形象设计，更体现在建筑的巧妙构思和流变空间的创造。厅堂建筑是园林中的主要景观和游憩，观景的重要空间环境，厅堂建筑在园林总体布局中的选址，以及其本身设计中室内外空间的往复交融，都反映出中国人特有的时空观念和对于创造无限自然山水意境的追求。     

由《芥子园画传》看中国古典园林植物配置

中国传统绘画与中国古典园林有着共同的文化和思想基础，具有密不可分、相辅相成的关系。通过对《芥子园画传》的分析，探讨中国古典园林中植物配置的方式及特点，以增进对中国古典园林植物配置的理解和认识。     

"中国热"与"新中国热"时期中国古典园林艺术对西方园林发展影响的研究

在回顾中国传统园林理论对西方园林影响的历史的基础上,从中国园林西渐历程“、中国热”时期对西方园林的影响等方面深入研究了中国园林在西方第一次传播与影响的过程与结果;进而从造园思想、园林布局、造园要素等方面的具体影响进行更为深入的分析,来获取对中国传统园林更为客观、真实的认识与评价,以求能在面对西方“强势文化”巨大冲击的时候重新确立正常的交流心态,并结合当前中国风景园林事业的发展现状和中国传统园林对西方影响启示的总结,积极探讨中国风景园林现代化进程的未来发展道路。