The evaluation of cluster policy by fuzzy MCDM: Empirical evidence from HsinChu Science Park

In the recent years, industrial clusters have received considerable attention from economists and industrial analysts, because they are seen as the main reason for economic growth and success of certain economic region. This study systematically reviews past researches of industrial cluster. The purpose of this paper is to contribute to the understanding of this issue regarding the driving forces for the growth of industrial cluster and find out the priority among these cluster policies. Taiwan HsinChu Science Park is a prime example for this paper, and its connection with the innovative participators. We begin with an examination of the literature on cluster about its driving forces and policies upon which we propose a conceptual framework. In doing so, we explore the cluster-based industrial system. Then this research adopts the Fuzzy Analytic Hierarchy Process as the analytical tool. The Fuzzy Analytic Hierarchy Process method is used to determine the weightings for evaluation dimension among decision makers. From our research results, the Factor Conditions is the most important driving force for advancing the industrial cluster performance. Moreover, the promotion of international linkages policy and broader framework policies rank the first two priorities for cluster policy. Overall, this paper concludes with some simulations of cluster policy alternatives confronting the industry and the Taiwanese government.     

文化创意产业园区协同创新平台的构建——以江西服装创意产业为例

江西省服装产业正处于由劳动密集型产业向知识密集型产业过渡的关键时期.在此发展阶段,江西省应在大力发展服装制造加工业的同时积极培育服装创意产业的发展,尽力提升知识、技术、创意等生产要素对服装产业的贡献,摆脱对劳动力、土地、自然资源等初级生产要素的过度依赖.探究了如何构建服装创意园区的协同创新平台并促进服装产业的转型升级.     

基于BP网络的异步电机转子断条故障的自动识别方法

提出了一种以扩展Park矢量方法为故障特征提取手段、利用BP网络的模式识别功能自动诊断异步电机转子断条故障的新方法。该方法消除了故障信号中基频成分对断条故障特征分量的“湮没”影响,同时实现了故障的自动识别,免去了人为介入。故障诊断实例表明:该方法具有良好的有效性和准确性。     

Mapping vegetation in Yellowstone National Park using spectral feature analysis of AVIRIS data

Knowledge of the distribution of vegetation on the landscape can be used to investigate ecosystem functioning. The sizes and movements of animal populations can be linked to resources provided by different plant species. This paper demonstrates the application of imaging spectroscopy to the study of vegetation in Yellowstone National Park (Yellowstone) using spectral feature analysis of data from the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS). AVIRIS data, acquired on August 7, 1996, were calibrated to surface reflectance using a radiative transfer model and field reflectance measurements of a ground calibration site. A spectral library of canopy reflectance signatures was created by averaging pixels of the calibrated AVIRIS data over areas of known forest and nonforest vegetation cover types in Yellowstone. Using continuum removal and least squares fitting algorithms in the US Geological Survey's Tetracorder expert system, the distributions of these vegetation types were determined by comparing the absorption features of vegetation in the spectral library with the spectra from the AVIRIS data. The 0.68 μm chlorophyll absorption feature and leaf water absorption features, centered near 0.98 and 1.20 μm, were analyzed. Nonforest cover types of sagebrush, grasslands, willows, sedges, and other wetland vegetation were mapped in the Lamar Valley of Yellowstone. Conifer cover types of lodgepole pine, whitebark pine, Douglas fir, and mixed Engelmann spruce/subalpine fir forests were spectrally discriminated and their distributions mapped in the AVIRIS images. In the Mount Washburn area of Yellowstone, a comparison of the AVIRIS map of forest cover types to a map derived from air photos resulted in an overall agreement of 74.1% (kappa statistic=0.62).     

Harmonic power distortion measurement in Park Plane

Harmonics free system voltage or currents form a closed loop in voltage–voltage or current–current plane. In this loop cleavages appear with the presence of harmonics, order of which is directly proportional to number of cleavages. Reactive and active power of the system are related with the area in v–i and vi–t planes covered by the curves consisting of fundamental waveform along with harmonic components, wherefrom, active power and reactive power distortion factors have been measured to assess power quality in a three-phase power system. Park transformation technique has been used for power distortion factor measurement, which has reduced the computational effort to a great extent.     

Fault diagnosis in six-phase induction motor using a current trajectory mass center

This paper proposes a new methodology for diagnosing the occurrence of stator winding faults in the six-phase induction motor. The proposed approach uses the xy current trajectory mass center of the motor stator currents. The Park transform is applied to the acquired induction motor stator currents. This transformation allows obtaining specific patterns that are used to identify stator winding faults. For healthy motors, a single point in the xy-plane is obtained. However, for a motor with a stator winding fault a circle is obtained, whose radius is related with the severity of the fault. To identify these patterns an algorithm, entitled current trajectory mass center, was developed. A theoretical analysis of the six-phase motor in αβ and xy current coordinates, for healthy and stator fault operation modes, is also presented. In order to show the applicability of the proposed technique several simulation and experimental results are presented.     

临空经济区空间发展模式及趋势展望

随着机场由交通场所向区域节点的跨越转变,临空经济区也随之相应地发生着变化,其产业和空间形态已由孤立的城市边缘空间向融入区域一体化发展转变。因此,需要对临空经济区的产生机理、空间布局规律和特点、未来发展趋势进行总结及展望。研究从梳理国内外临空经济区的文献出发,对临空经济区的概念和空间发展模式进行探讨。从机场与临空经济区的关系出发,研究临空经济区与机场、中心城市、腹地之间在产业和空间上的互动关系—集聚效应与分散效应,勾勒出临空经济空间布局演变过程:独立机场区—机场产业化区—空港都市区,结合临空经济区出现的新变化和特点,探索和展望临空经济区的未来发展趋势—航空市镇群的发展。     

安平桥公园建设策略研究

笔者对安平桥的历史文化和周边环境等现状情况调查摸底,并通过专家咨询、部门座谈会等形式获取有关安平桥公园建设的建议和意见。运用SWOT法和AHP法综合分析影响安平桥公园建设的文物保护、生态质量、文化内涵、景观构造、景观效果、管理机构等不同指标重要性的差异,并根据差异结论总结出安平桥公园建设应以文物和生态保护为主的一系列措施,这些措施可作为安平桥公园建设的参考依据。     

从张家界土家风情园谈仿古建筑的生存价值

张家界土家风情园是湘西地区一座大型的土家风格的仿古建筑群。本文从土家风情园的文化内涵着手，分析了目前国内仿古建筑建设状况，指出了仿古建筑具有的四大生存价值。     

CYPHER MACHINES MAINTENANCE AND RESTORATION SPANNING SIXTY YEARS

We describe the life and times of a servicing mechanic for cypher equipment for the Royal Air Force during World War II and an opportunity to serve again as a cypher machine restorer for Bletchley Park Museum.