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李健怡 《成都电子机械高等专科学校学报》2017,20(1)
新建本科院校的发展是高等教育改革发展的产物,较之过去其培养层次、培养方式、培养目标、管理模式都将随之发生相应变化.从"破"和"立"两个视角指出了具体在学生管理工作中直接影响人才培养质量的诸多突出问题,重点从转变育人理念、加强学风建设、学生活动与教学科研联动发展3个方面提出了学生管理工作的突破方向与创新思路. 相似文献
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At present,the automatic extraction of urban built\|up area is still a problem.Taking Shanghai city as an example,this research uses the binary image,which was derived from an IBI(index\|based built\|up index)image,as the geographical cellular automaton initial input data.This was then imported to the extended cellular automata model for further processing.After a series of processing such as thresholding,corrosion and connectivity test,the urban built\|up area was simulated and can be extracted.Based on this method,the urban built\|up area of Shanghai in five different years between 1987 and 2015 was extracted using multi\|temporal Landsat images of Shanghai.In addition,the urban growth intensity index,the concentric buffers analysis and radar chart analysis were calculated and used to analysis spatiotemporal pattern of Shanghai urban expansion in the 28 study years.The result shows that the built\|up area of Shanghai was expanded from 195 km2 in 1987 to 1759 km2 in 2015,which is eight times as large as that in 1987.In the period between 1987 and 2002,the urban built\|up area expanded mainly along the North\|South axis of the Huangpu River.However,after 2002 the expansion rate was increased more quickly,and the direction of the expansion was shifted to an east to west direction.Generally speaking,Shanghai has experienced a rapid urban expansion in the recent three decades. 相似文献
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将浙中地区风土建成遗产作为景观要素,基于民间
文献中的图文史料,运用“景观图谱法”分析2种灌区景观的
结构性特征。根据水利设施的不同,灌区景观可被分为陂塘景
观和堰坝景观,陂塘灌区的中心聚落多位于渠系上游,水利多
由单一宗族控制;而堰坝灌区水利由多宗族分享,且中心聚落
在渠系末端。通过深入调查其中宗族聚落发生的历史及水利社
会的变迁,揭示灌区景观体系的营建过程,解析水利社会的治
理机制。最后,归纳浙中灌区景观的总体特征,以期为日后建
成遗产的保护提供价值判断的依据。 相似文献
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片上系统中含有大量的存储器,常使用共享内建自测试电路的方法测试。内建自测试电路的插入过程受到片上系统的面积开销、测试功耗与测试时间的约束。针对这个问题,将多存储器内建自测试建模为多目标优化问题,并提出一种多目标聚类遗传退火算法。该算法在遗传算法的基础上,通过存储器聚类获得存储器兼容组,采用启发式方法获得高质量初始解,提出一种多约束条件下不同权重的目标函数,对较优个体采用模拟退火算法规避局部最优解风险。实验结果表明,该算法比遗传算法性能更优,获得存储器组解进行测试,比现有方法测试功耗降低11.3%,或测试时间降低48.7%,节省了片上测试资源与测试时间。 相似文献
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《Journal of Urbanism》2013,6(1):19-38
This paper compares neighborhoods with more traditional features in two very different cities. As expected, in Portland the majority are socially diverse and in Atlanta they are low‐income. However, in both cities about a quarter are high‐income. In Atlanta the latter are located in older neighborhoods, whereas in Portland they are also in areas combining newer and older housing. A return to valuing a more traditional urbanism may explain the signs of revitalized central cities in both places. Our findings, however, indicate it may be accompanied by the relocation of low‐income neighborhoods to areas where activities are not readily accessible. 相似文献
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Ernest Sternberg 《Journal of the American Planning Association. American Planning Association》2013,79(3):265-278
The ideas that inform urban design usually coalesce around contending approaches, each associated with one or two leading writers. This article finds that these approaches share an intellectual foundation: They implicitly acknowledge the “noncommodifiability” of the human experience across property boundaries. They share the view that good design seeks to reintegrate the human experience of urban form in the face of real estate markets that would treat land and buildings as discrete commodities. The great writers on urban design have more or less explicitly defended this intellectual position by appeal to the nebulous concept of the “organic.” Rather than just asserting that everything is part of an organic whole, this article identifies the integrative principles through which urban environments can transcend commodification. These principles include good form, legibility, vitality, and meaning. 相似文献