供热外网采用直埋式保温管的讨论

从工程投资,施工及保温材料的技术性能的分析入手,认为采用硬脂聚氨酯泡沫塑料保温的直埋管道比地沟管更具有优越性。     

洗碗机用液体洗涤剂的研制

研究了二元表面活性剂混合体系的泡沫、表面张力、cmc及浊点等性能，并据此进行了复合配方试验，添加自制复合钙皂分散剂和其他助剂，研制出了一种去污力高、起泡力低并适用于家用洗碗机循环喷洗用的液体洗涤剂。该剂为碱性水基清洗剂，不含强酸、强碱和磷助剂等成分，可用于中温（30℃－40℃）洗涤，能有效去除碗与碟等餐具硬表面的油污，对人、畜无毒，洗涤排水合格。     

新建本科院校学生管理工作的"破"与"立"

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.     

IBI and CA Model based Extraction of Urban Built\|up Areaand Its Application：A Case Study in Shanghai

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.     

烧结热矿破碎机齿辊耐磨层的堆焊

邯钢在消化吸收引进技术的基础上,对热矿破碎机齿辊及耐热篦板的耐热耐磨层堆焊工艺进行了研究和改进,使其在齿辊无通水冷却的情况下,使用寿命可达1年以上,远高于国内同类堆焊齿辊的寿命。     

浙中灌区景观中的风土建成遗产识别与 解析

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。     

多目标优化的多存储器内建自测试

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。     

新时期面向品质提升的城市设计工作思路探讨——以沈阳金廊核心段城市设计为例

沈阳金廊在快速发展十年之后,迎来了对规划建设总结和提升的阶段,本文在分析其建设现状基础上,结合新时期中央城市工作会议精神,从追求品质增长、发挥公共价值、增强设计指导性三方面开展本轮城市设计工作,包括继续按照最初谋划的金廊整体功能结构和空间结构进行严格控制,着重对公共领域的品质进行提升,并打造未出让地块为示范项目树立标杆,最终落实成管控文件。     

Social diversity and construction era of neighborhoods with traditional design features: Portland and Atlanta compared

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.     

An Integrative Theory of Urban Design

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.