国内印城 群星争辉——国内大型印刷城、印刷一条街统计

印刷物流指为满足出版单位、印刷厂到消费者需要而进行从起点到终点间的原材料、中间过程库存、最后产品和相关信息有效流动和储存的计划、实施和控制管理过程,是指印刷设备和材料从供给者到需求者的物理性运动,主要是创造时间价值和场所价值,有时也创造一定加工价值的活动。这个新概念的引入是中国印刷界出现印刷城、印刷一条街概念的基础。

大型多功能商住城的供电系统分析

本文通过在实际工程设计中积累的供电系统设计的经验和体会，提出民用建筑供电系统设计应注意的几项内容。

断陷盆地复杂地表潜山地震勘探技术研究与应用

随着油气勘探的逐步深入,复杂地表条件对地震勘探的影响越来越大,对勘探技术提出更高要求,作为断陷盆地复杂潜山勘探领域的典型代表,华北探区在“十三五”期间针对超大型城矿区、巨厚火成岩覆盖区等复杂地表采集难、静校正效果差、深潜山及内幕成像精度低、裂缝预测精度低等严重制约勘探进程的问题开展了专题技术攻关,形成了复杂地表区激发点优化技术、多道匹配追踪近地表Q值反演及三维建模技术、多期次三维空变时差校正技术、地震与非地震联合“两步法”高精度静校正技术、基于声波时差测井资料的层速度校正等复杂地表区潜山地震勘探配套技术,在华北探区杨税务潜山带、束鹿西斜坡潜山带、乌兰花凹陷等多个区带中实践并推广应用,得到高品质的地震资料,地震资料频宽拓展了10~15 Hz,地震成果资料信噪比提高了2倍,潜山面埋深3000 m以浅对井误差小于0.7%,3000 m以深对井误差小于1%,提高了复杂潜山及内幕深度偏移成像精度及非均质储层预测符合率,非均质储层预测符合率达到79.5%,多口井获得高产工业油气流,为实现“十四五”期间类似领域的油气勘探突破提供技术保障。

城

凝望祖先的身影,我们当然会对古远时候劈山凿石所击打出的美妙奇异音响而心生敬仰;对开拓攀登所踩踏出的气吞山河的节拍满怀感动。于是,一个古远的建城故事便带着动人心魄的家园气息向我们走近了……

城市大型商贸物流城项目交通影响评价研究

本文以兰州北龙口国际商贸物流城交通影响评价研究为例,探讨进行城市大型商贸物流城项目交通影响评价的途经和方法,从面向应用的角度提供了大型商贸物流城项目交通影响评价中的技术路线、参数确定、分析重点,为定量评估和制定交通组织措施提供理论依据和指导。

Command and Control Cities in Global Space-economy Before and after 2008 Geo-economic Transition

The global economic downturn caused primarily by the US sub-prime mortgage crisis in 2007 engendered revenue loss of the multinational corporations. Existing studies have yet to depict the detrimental impacts on city＇s command and control functions induced by the sub-prime mortgage crisis together with its residual wave of global economic recession on the global spatial economy. Recent and previous studies have produced an ＇instant history＇ of the global spatial economy before the global economic downturn undermines the global economy in late 2008. How- ever, the waxes and wanes of major cities＇ command and control functions on the global economic arena before and after the outbreak of financial crisis and its associated geo-economic transitions are still poorly understood. This paper attempts to contribute a new set of customized data to update and fill in the gap in the literature with the investigation of the command and control functions of cities arotmd the world from 2005 to 2009. Particular attentions are paid to the time-space relationship of the geo-economic transition that can capture the recent historical images of the com- mand and control situation of different cities in the world.

Discussion of the problems of environmental protection in the city management

Since the reform and opening up, the construction in all aspects of our country has achieved a rapid development, and especially the development of the industrial construction is also more prominent, so that each big city rapidly moves forward. But in the development at the same time, some of the issues are inevitable. The rapid development of the cities has attracted a large population, and there are more and more large factories, so that there is more and more pollution in the life and production, which brings greater security risks to the human life and health, and let the cities more difficult to manage. So how to solve these problems and make the cities develop better is a problem worth pondering.

STUDY ON THE OPTIMUM PATTERN OF DAQIN G URBAN SPATIAL STRUCTURE

Daqing is a mining city that was set up on wetland by exploiting and processing petroleum.This paper points out that net-group urban system is the optimization mode for Daqin g urban spatial structure through an alyzing and appraising the present situation,c haracteristics,advantages and dis advantages of Daqing spatial structure.And the best way of optimizing Daqing urban spatial structure is to adopt sustainable development strategy,establish th e coordinated grade structure of urban system,con struct developed towns net system,p refect the function structure of the towns at all levels,make full use of resources an d strengthen environmental protection.Spatial structure of Daqing must be according-ly adjusted in order to adapt to the tr ansformation of future economy types and functions.Based on the foundation of keep-ing net group,the development shoul d be from disperse to moderate centra lization in order to give prominence to the multi-function of the central city.Constr ucting ruralizing city should be the future goal of Daqing City.

Mass Media and Urban Tribes, Analysis of Their Relations by Stafford Beer＇s Viable System Model

This paper discusses the relations between mass media and urban tribes, by Stafford Beer＇s viable system model （VSM）. During 1950-2010, the influence of media and advertising over individual decision-making processes has deepened of age range to which have targeted advertising and expanded for Western world, leading the culture diversity, naturally given, toward only one standardized culture prevailing nowadays. In the 1960s they were the women, then the young people during 1970s, and then children in the 1980s and during the 1990s over early childhood, when we learnt to speak （3 years old）, achieving brand loyalty among very young children and the brands of products for this age group. From this perspective, urban tribes have taken control of the lives of young people, offering a false freedom, at the moment of choosing ＂How to be yourself＂ from options given in the market as a ＂catalogue of predesigned identities＂. A phenomenon is so complex, so it requires a holistic framework able to make explicit its components and relations between them and the relationship with internal and external environment. In particular, the VSM provides a way to analyze communication＇s problems thus clarifying： how, when and where, repair and controlling into the organization, identifying strategies to improve decision-making. Given the recursive nature of the VSM, it is possible to navigate within the phenomenon, through different recursions＇ levels. It will help to define more assertive and effective policies by health authorities, education and government in general, and also help someone among young people to see themselves inside of a dynamic consumption and thus can leave the domain and enter into a recta-domain, with more wisdom and consciousness.

Prediction of dust fall concentrations in urban atmospheric environment through support vector regression

Support vector regression （SVR） method is a novel type of learning machine algorithms, which is seldom applied to the development of urban atmospheric quality models under multiple socio-economic factors. This study presents four SVR models by selecting linear, radial basis, spline, and polynomial functions as kernels, respectively for the prediction of urban dust fall levels. The inputs of the models are identified as industrial coal consumption, population density, traffic flow coefficient, and shopping density coefficient. The training and testing results show that the SVR model with radial basis kernel performs better than the other three both in the training and testing processes. In addition, a number of scenario analyses reveal that the most suitable parameters （insensitive loss function e, the parameter to reduce the influence of error C, and discrete level or average distribution of parameters σ） are 0.001, 0.5, and 2 000, respectively.

Optimization of Planning Routes in Solid Waste Collection

This paper presents an optimization model for solving the planning problem of collection and transportation of solid waste in medium-sized cities. As final results, are expected to promote cost savings to the public coffers, as well as environmental benefits. The developed mathematical model is formulated as a problem of linear programming with mixed-integer variables and transcribed into software GAMS （general algebraic modeling system）. The practical application was tested using data collected in the central region of a Brazilian city with approximately 90,000 inhabitants. The deterministic model used allowed an optimal solution. It was found after inclusion of restrictions that eliminated the appearance of sub-routes. It was concluded that the optimal routes allow for a 38% reduction in total distance traveled, which can generate savings of $320.00 per day regarding maintenance and fuel trucks.

探讨中国城市现代住宅的发展趋势

随着社会的发展,人口的增加,城市发展,经济繁荣而带来的是商业区和居住区的快速扩张。各个大中小城市都在热火朝天的开山辟地进行城市扩张。人们往比原居地更发达和繁荣的城市进行迁移,中大型城市的人口越来越多,原有的居住区已经远远不能满足人口迁移的需求量,所以城市的居住区不得不进行不断的建设和扩充。人口的暴增对城市居住区带来的实际影响不仅仅是房价的上涨、人口的增加,还有居住环境的恶化。开发商为了追求利润居住区的建筑形式向高层建筑发展。建筑越高,可容纳居住人口就越多,人口密度越高。高容积率的住宅意味着高密度的居住人口。

Examining Construction Quality Supervision and Organization Procedures for BOT Projects by Comparing with DBB Projects

Adopting the BOT （build-operate-transfer） delivery method has brought opportunities and challenges in construction time and quality for urban infrastructure. Many studies investigate the upstream issues of BOT projects such as concessionaire selection criteria and risk factors. But the project execution becomes complicated such as the escalated quality supervision organization and procedure at the construction stage. This extra supervision may have constituted hidden redundancies as waste to economic sustainability. This paper investigated construction quality supervision of BOT projects to pinpoint adequate degree of supervision and detect redundant organization and procedures. The study adopted ten subway construction projects as cases in which five were from the traditional design-bid-build （DBB） and five from the BOT methods. Thirty six project participants including owners, contractors, designers, and concessionaire managers of the ten projects were interviewed to tell their views on these issues. The quality supervision measures of the DBB projects were used as the baseline and compared with those of the BOT projects. The research results show that the construction quality seems no difference for the DBB and BOT projects. Construction quality comes out of supervision but excessive supervision organization and procedures do not necessarily improve quality. This finding indicates that adequate degree of supervision is enough to achieve required quality to save immense paperwork for large construction projects.

A composite model for complex building street configuration in a large eddy simulation of local urban atmospheric environment

The wind field and pollutant dispersion are predicted numerically in a local urban area with crowded buildings and heavy traffic.A domain decomposition method is used in the large eddy simulation,in which the urban area is decomposed into a central area,where pollution is the major concern,and a surrounding region,where the pollutant distribution is not important.The composite model is proposed for the complex building-street layout.The fine grid mesh is used to resolve the buildings in the central area while the buildings are treated as roughness elements in the surrounding region where the coarse grids are used.The proposed numerical method is applied to simulate the wind field and pollutant dispersion from vehicle exhaust in the Rua Do Campo area of Macao.The results show that the composite model is an appropriate method for predicting wind field and pollutant dispersion in the crowded building area.