图像的角点检测研究综述

角点检测是图像处理和模式识别领域的基本课题,它在运动估计、形状分析、3D重建等方面都有重要的应用.本文对角点检测方法进行了详细阐述及分类--基于灰度强度的方法、基于边缘轮廓的方法、基于角点模型的方法,并将现有方法的优缺点进行了总结,指出了存在的问题及进一步的研究方向,预期为图像角点检测提供参考和借鉴.     

高职机电类产学研项目转化为教学项目的研究与实施

高职院校教师在与企业开展紧密合作的过程中,开发了大量的新产品、新工艺和新技术,高职院校培养的人才要服务区域经济,对应的课程内容要与区域企业的实际相符合,因此,通过提炼可以把这些产学研项目带入到课堂中,转化为可以实施的教学项目,这样,可以提高学生的学习兴趣和成就感,从而提高教学效果,培养的人才更符合企业需求。本文以机电类的CAD/CAM实践课程为例,把产学研项目融进教学,详细介绍了课程的教学设计与教学效果。     

浅析绝缘结构设计理念的研究

绝缘结构在我们生活中随处可见,它不仅在日常生活中起到了重要的作用,在工业的生产以及各种工作的正常进行都有重要的意义。近些年我国的经济水平有了显著的增长,经济水平的增长使得我国各项发展项目都有了较好的发展势头,国家对起到重要作用的绝缘结构设计加强了重视程度,所以现阶段对绝缘结构设计理念的研究已成为主要的研究目标。绝缘结构设计的研究对我们日常生活及各行业的生产都有着重要的意义,将绝缘结构设计理念的研究作为重点研究对象正是对应了现阶段我国发展迅速的现状。     

气井稳定携液之我见

业内对于临界携液流量的认识一直都存在着分歧。以Turner、李闽为代表的液滴携液理论观点认为"当气体流速达到一定数值后,液相分散成小液滴被携带走";而以李颖川等为代表的气液两相管流实验模拟者则认为"在气井生产过程中雾状流很难出现,气井生产基本上是以段塞流为主,液滴模型无法解释气井实际排液情况"。为了还原低压低产气井实际生产状态,基于弗劳德相似准数,以流速相似原理模拟低压、低产井实际生产情况,并开展了相应的实验研究。结果表明:①低压、低产气井实际上存在"上雾+下段塞"混合流动状态;②上部雾状流携液满足液滴模型计算结果,当气相流速高于临界携液流速则上部可连续带液,否则会导致积液段液量缓慢增加;③下部表现为段塞流,当气相流速高于1.95 m/s,则表现为连续流动,气井基本无积液,当气相流速低于0.195 m/s,则表现为难以流动,气井不产液,面临水淹。实验所得结果与气井实际生产情况相当吻合,可以为气井有效开采提供技术支撑。     

光纤激光器中包层光滤除器的研究进展

包层光滤除器对高功率光纤激光器系统的作用非常重要,影响着输出激光的光束质量和单色性,包层光滤除器是光纤激光器产品化的核心元器件。本文简述了光纤激光器包层光滤除器的工作原理,总结了几种包层光滤除器的结构和工作性能,分析了其优缺点,对包层光滤除器的研究方向具有一定的指导意义。     

Fabrication Agency: Landesgartenschau Exhibition Hall

Advances in computation challenge established design approaches in architecture through a much deeper integration of form generation and materialisation. Tobias Schwinn , Research Associate at the Institute for Computational Design (ICD), University of Stuttgart, and Guest-Editor Achim Menges , Director of the ICD, introduce how the potentials and constraints of robotic fabrication can now be explored as generative drivers in agent-based design. This enables architectural innovation in unison with fabricability, structural capacity and spatial performance, as demonstrated by the Landesgartenschau Exhibition Hall in Schwäbisch Gmu"nd, Germany, the world's first building with a robotically fabricated segmented timber shell as its primary structure.     

Shifting the spotlight: suggesting a pragmatic approach to studying the Polish LGBT community

This research, based on a pilot survey distributed among representatives of the LGBT community in Poland, is aimed at initiating an academic debate on the future of the Polish LGBT population in the urban setting; gaining insight into perceptions of LGBT survey respondents about potential clustering preferences of the Polish LGBT population; and thus suggesting a framework for LGBT inclusion in the Polish urban economic and developmental plans, using Poznan, Poland, as an example. The pilot survey, distributed among a small sample group of LGBT individuals mostly from the city of Poznan, provides insight into attitudes that Polish LGBT individuals may have towards forming a dedicated LGBT district in a major city in Poland, and potential consumer preferences in housing arrangements and services that such a district should provide. More importantly, this research aims to spark further research into the relationship between urban environments and the LGBT community in Poland.     

The Industrial Heritage and the New Architecture： Teaching, Researching, Designing the Place Identity

The new architecture may provide unusual opportunities for the abandoned areas involved by former industrial processes, both in the city centers and in the landscape. In fact, it may create new centralities and give new collective function for deprived areas. The case study of the architectural and educational project for a new museum park devoted to the technique and the science in the Apennine＇ s landscape near Parma （Italy） may give an interesting point of view about the role of the teaching and the research of the architecture in the former industrial heritage, and to avoid the abandonment and the pauperization of the territory around.     

Integrating gentrification into the intrinsic logic discourse – Suggestions for linking the research agendas

Taking into account current discourses about urban spaces, this article argues for linking the research agenda on the intrinsic logic of cities with the gentrification debate. Hence, it is proposed that the intrinsic logic is reflected in the gentrification processes. Drawing on results from a research project in three gentrified neighbourhoods (Karmeliterviertel in Vienna, Wicker Park in Chicago and La Condesa in Mexico City), a selection of constitutive aspects is focused upon for a closer analysis. The ‘commodification of urban space’, the issue of ‘social inequality’ and the notion of ‘space as a contested resource’ were identified as examples of manifestations of latent structures that define the intrinsic logic of a city. As the results confirm the main proposition, it is suggested that this approach should be integrated into the research agenda on the intrinsic logic.     

拉索体系相关标准及规范的研究

通过对国内和国际通用的拉索体系标准及规范进行研究,从对拉索索体母材的疲劳性能、预应力筋——拉索锚具组件的疲劳性能和水密性能所提出的试验条件等方面进行比较,研究各标准及规范的共性与差异性。从各标准及规范对拉索体系各项性能要求的比较,及国际斜拉索规范对拉索防腐体系要求的解读,找出我国在斜拉索标准与国际规范的差距。结合拉索体系的设计、制造、检验、安装及维护对各规范中相关条款的合理性及可操作性进行分析,对这些标准的执行或修订提出一些思考。