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Development and Application of Modern Building Ceramic Materials

Research and Application of Materials Science 2023年第2期5卷 25-32页

作者： Chaolu YANG Fuchuan ZHOU Qianren CHEN Gang SHI Masiko MKaziana Masabo Gasper institute of New Manufacturing engineering Tomsk Polytechnic UniversityTomsk634050Russia chongqing Vocational institute of engineering Chongqing402260China chongqing yuxi water conservancy and electric power survey and design institute CO. LTD.Chongqing402160China Dar es Salaam institute of Technology{DIT} Dar es Salaam11103Tanzania

With the increasing demand for sustainable building design,modern building ceramic materials are one of the key factors driving innovation and development in the field of architecture,thanks to their excellent performance and environmentally friendly *** aim of this study is to provide an insight into the development and application of building ceramic materials in modern architecture,and to assess the contribution of material innovation to architectural design and sustainability goals by synthesising and analysing recent technological advances and case studies in this *** study adopts a systematic literature review approach to screen and analyse a large number of academic articles and practical project reports on material innovation in building *** analyses of different material properties,advances in production processes and the effects of their application in real building projects reveal the potential of building ceramic materials to improve the energy efficiency,extend the service life and enhance the aesthetic design of *** findings show that the environmental and energy issues facing traditional building materials,such as improved thermal efficiency and a reduction in the overall carbon footprint of buildings,can be effectively addressed through the use of new building ceramic materials and *** addition,the innovative use of architectural ceramics provides architects with more design flexibility,enabling them to create architectural works that are both aesthetically pleasing and *** the concluding section,the paper highlights the importance of continuing to explore technological innovations in building ceramic materials and how these innovations can contribute to a more sustainable and environmentally friendly building *** research should further explore new areas of application for ceramic materials and how interdisciplinary collaboration can accelerate the practical application o

关键词： ceramic materials sustainability modern architecture development and applications

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A survey on software defined networking and its applications

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Frontiers of Computer Science 2015年第6期9卷 827-845页

作者： Yili GONG Wei HUANG Wenjie WANG Yingchun LEI Computer School Wuhan University Wuhan 430072 China Department of Electrical engineering and Computer Science University of Michigan Ann Arbor 48109 USA Simulation Training Center Chongqing Communication Institute Chongqing 400035 China institute of Computing Technology Chinese Academy of Sciences Beijing 100080 China

Software defined networking （SDN） achieves network routing management with logically centralized con- trol software that decouples the network data plane from the control plane. This new design paradigm greatly emancipates network innovation. This paper introduces the background of SDN technology with its design principles, explains its differentiation, and summarizes the research efforts on SDN network architecture, components and applications. Based on the observation of current SDN development, this paper ana- lyzes the potential driving forces of SDN deployment and its future trend.

关键词： software defined networking (SDN) OpenFlow

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Preliminary research on the design of flexible barriers for debris flow

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机床与液压 2014年第6期42卷 1-4页

作者： Huan ZHANG Li-zhou ZHANG School ofCivil engineering and Geosciences Newcastle UniversityNewcastle upon TyneUnited Kingdom Changzhou Rail Transit Development Co. Ltd. Changzhou 213000 China chongqing survey institute Chongqing 400020China

Rigid barriers,including check dams,steel cells and retaining walls,are widely utilized for debris flow *** has to be said that these rigid structures are generally effective and technical ***,with the enhancement of environmental awareness and innovative materials,flexible barriers have been being created which are very engineering effective,environmental friendly,material saving as well as easy construction in rugged *** the merits of such structures are summarized in above,the understanding of such barriers are very *** of constructions are just on the basis of engineering experience and largely depend on the factor of safety to eliminate the *** this paper,method for debris flow dynamics calibration and conventional ideas for the design of flexible barriers will be illustrated and an advanced method-finite element will be used to analyze the debris flow.

关键词：泥石流屏障设计刚性结构环保意识 ENVI 节约材料安全系数

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Mechanisms of suspended sediment restoration and bed level compensation in downstream reaches of the Three Gorges Projects(TGP)

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Journal of Geographical Sciences 2017年第4期27卷 463-480页

作者：张为杨云平张明进李义天朱玲玲由星莹王冬徐俊锋 State Key Laboratory of Water Resources and Hydropower engineering Science Wuhan University Key Laboratory of engineering Sediment Tianjin Research Institute for Water Transport Engineering Ministry of Transport Bureau of Hydrology Changjiang Water Resources Commission Hubei Provincial Water Resources and Hydropower Planning survey and design institute Changjiang river Scientific Research institute

river basin reservoir construction affects water and sediment transport processes in downstream reaches. The downstream impact of the Three Gorges Projects （TGP） has started to become apparent：（1） reduction in flood duration and discharge, and significant reduction in sediment load. Although there was some restoration in downstream sediment load, the total amount did not exceed the pre-impoundment annual average; （2） in 2003-2014 the d 〉 0.125 mm （coarse sand） load was restored to some degree, and to a maximum at Jianli Station, which was mainly at the pre-impoundment average. After restoration, erosion and deposition characteristics of the sediment was identical to that before impoundment. The degree of restoration during 2008-2014 was less than during 2003-2007; （3） after TGP im- poundment, there was some restoration in d 〈 0.125 mm （fine sand） sediment load, however, it was {ower than the pre-impoundment average; （4） due to riverbed compensation, the d 〉 0.125 mm sediment load recovered to a certain degree after impoundment, however, the total did not exceed 4400x104 t/y. This was mainly limited by flood duration and the average flow rate, and was less affected by upstream main stream, tributaries, or lakes. Restoration of d 〈 0.125 mm suspended sediment was largely controlled by upstream main stream, tributaries, and lakes, as well as by riverbed compensation. Due to bed armoring, riverbed fine suspended sediment compensation capability was weakened; （5） during 2003-2007 and 2008-2014, Yichang to Zhicheng and upper Jingjiang experienced coarse and fine erosion,lower Jingjiang experienced coarse deposition and fine erosion, Hankou to Datong had coarse deposition and fine erosion, and Chenglingji and Hankou was characterized by coarse deposition and fine sand erosion in 2003-2007, and coarse and fine erosion in 2008-2014. This difference was controlled by flood duration and number at Luoshan Station.

关键词： sediment restoration riverbed compensation TGP middle and lower reaches of the yangtze river

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Typology-based Vitality Promotion of Urban Waterfront Public Space in the Three Gorges Reservoir

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Journal of Landscape Research 2017年第1期9卷 51-56,60页

作者： TAN Xin CAO Yu WANG Hangli chongqing Wanzhou institute of Planning and design

Revitalization of waterfront-a precious resource of city has gradually become popular worldwide. Cities around the Three Gorges Reservoir grow and proper for the yangtze river,thus waterfront in these cities has been long ignored or faced with "constructive destruction" with the city development. This paper divided urban waterfront public spaces around the Three Gorges into 3 kinds of spaces,namely point,line and surface,from the perspective of typology,and put forward strategies such as functional renovation,and improvement of spatial scale from the perspectives of land use and traffic,to enhance the vitality of waterfront public space.

关键词： Waterfront Public space Vitality Typology

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LONG AND DEEP DIVERSION TUNNELS OF 1^(ST) STAGE PROJECT IN WEST ROUTE OF SOUTH-NORTH WATER TRANSFER PROJECT

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岩石力学与工程学报 2003年第9期22卷 1527-1532页

作者： Shen Fengsheng,Liu Xin (Reconnaissance,Planning,design and Research institute,Yellow river Construction Commission, Ministry of Water Resources, Zhengzhou 450003 China) Reconnaissance Planning Design and Research Institute Yellow River Construction Commission Ministry of Water Resources Zhengzhou 450003

West Route of South-North Water Transfer Project,situated in southeastern Qinghai-Tibet Plateau,is a giant project,which will deliver 17 billion m3 of water from the main stream and tributaries upstream of the yangtze river to the upper reaches of the Yellow river. It is to be constructed in 3 stages, of which the 1st stage project includes delivering 4 billion m3 of water by gravity from two tributaries of Yalong river and three tributaries of Dadu river. The project consists of 5 dams,7 tunnels and a channel in series,with the dam height of 63～123 m and water transfer length of 260.3 km,of which the tunnels measure 244.1 km. The special climatic,environmental and geologic conditions make the project much more complicated in construction,especially 3 tunnels with the length longer than 50 km each create challenges to the technical requirements of engineering survey,design and construction.

关键词：南水北调工程西线工程引水隧洞 TBM

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Channel evolution under changing hydrological regimes in anabranching reaches downstream of the Three Gorges Dam

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Frontiers of Earth Science 2018年第3期12卷 640-648页

作者： Jianqiao HAN Wei ZHANG Jing YUAN Yongyang FAN institute of Soil and Water Conservation Northwest A&F University Yangling 712100 China State Key Laboratory of Water Resources and Hydropower engineering Science Wuhan University Wuhan 430072 China Bureau of Hydrology Changjiang Water Resources Commission Wuhan 430010 China Changjiang institute of survey Planning Design and Research Wuhan 430010 China

Elucidating the influence of dams on fluvial processes can benefit river protection and basin management. Based on hydrological and topographical data, we analyzed channel evolution in anabranching reaches under changing hydrological regimes influenced by the Three Gorges Dam. The main conclusions are as follows： 1） the channels of specific anabranching reaches were defined as flood trend channels or low-flow trend channels according to the distribution of their flow characteristics. The anabranching reaches were classified as T1 or T2. The former is characterized by the correspondence between the flood trend and branch channels, and the latter is characterized by the correspondence between the flood trend and main channels; 2） on the basis of the new classification, the discrepant patterns of channel evolution seen in anabranching reaches were unified into a pattem that showed flood trend channels shrinking and low-flow trend channels expanding; 3） flood abatement and the increased duration of moderate flow discharges are the main factors that affect channel adjustments in anabranching reaches after dam construction; and 4） in the next few decades, the pattern of channel evolution will remain the same as that of the Three Gorges Dam operation. That is, the morphology will fully adapt to a flow with a low coefficient of variation. Our results are of interest in the management of the yangtze river and other rivers influenced by dams.

关键词： anabranching river channel evolution Three Gorges Dam yangtze river

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The mechanism of barrier river reaches in the middle and lower yangtze river

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Journal of Geographical Sciences 2017年第10期27卷 1249-1267页

作者： YOU Xingying TANG Jinwu ZHANG Xiaofeng HOU Weiguo YANG Yunping SUN Zhaohua WENG Zhaohui State Key Laboratory of Water Resource and Hydropower engineering Science Wuhan University Wuhan 430072 China Hubei Provincial Water Resources and Hydropower Planning survey and design institute Wuhan 430064 China Changjiang institute of survey Planning design and Research Wuhan 430010 China Key Laboratory of engineering Sediment Tianjin Research Institute for Water Transport Engineering Ministry of Transport Tianjin 300456 China

Alluvial channel has always adjusted itself to the equilibrium state of sediment transport after it was artificially or naturally disturbed. How to maintain the equilibrium state of sediment transport and keep the river regime stable has always been the concerns of fluvial geomorphologists. The channel in the middle and lower reaches of the yangtze river is characterized by the staggered distribution of the bifurcated river and the single-thread river. The change of river regime is more violently in the bifurcated river than in the single-thread river. Whether the adjustment of the river regime in the bifurcated river can pass through the single-thread river and propagate to the downstream reaches affects the stabilities of the overall river regime. Studies show that the barrier river reach can block the upstream channel adjustment from propagating to the downstream reaches; therefore, it plays a key role in stabilizing the river regime. This study investigates 34 single-thread river reaches in the mid- dle and lower reaches of the yangtze river. On the basis of the systematic summarization of the fluvial process of the middle and lower reaches of the yangtze river, the control factors of barrier river reach are summarized and extracted： the planar morphology of single-thread and meandering; with no flow deflecting node distributed in the upper or middle part of the river reach; the hydraulic geometric coefficient is less than 4; the longitudinal gradient is greater than 12‰, the clay content of the concave bank is greater than 9.5%, and the median diameter of the bed sediment is greater than 0.158 mm. From the Navier-Stokes equation ,the calculation formula of the bending radius of flow dynamic axis is deduced and then the roles of these control factors on restricting the migration of the flow dynamic axis and the formation of the barrier river reach are analyzed. The barrier river reach is considered Such. When the ratio of the migration force of the flow dynamic

关键词： barrier river reaches flow dynamic axis channel boundary the middle and lower yangtze river

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Super-long Qinling Tunnel for Han river to Wei river Water Diversion Project

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隧道建设（中英文） 2018年第1期38卷 148-152页

作者： LI Lingzhi China Railway First survey and design institute Group Co. Ltd.Xi′an 710043ShaanxiChina

Han river to Wei river Water Diversion Project in Shaanxi Province is an inter-basin water diversion project approved by the State Council in 2005,which is a key hydraulic project in the 12th Five-Year Plan of *** is expected to solve water resources shortage in the Guanzhong area of Shaanxi Province,effectively curb the deterioration of ecological environment in Wei river and reduce environmental geological disasters in the Guanzhong *** is a strategic project for optimal allocation of water resources by adjusting the distribution of water resources in Shaanxi Province and promoting the economic development of the Guanzhong-Tianshui Economic *** of the project is of great importance to the sustainable economic and social development of the Guanzhong *** project crosses the yangtze river and Yellow river basins and passes through the Qinling *** huge-scale project has a profound historic impact on the economic development in the region.

关键词： Han river to Wei river Water Diversion Project

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Path Analysis of Energy-Saving Technology in yangtze river Basin Based on Multi-Objective and Multi-Parameter Optimisation

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Journal of Thermal Science 2019年第6期28卷 1164-1175页

作者： MENG Xiangzhong YU Wei ZHENG Chuyu WANG Di CAO Xinyun Joint International Laboratory of Green Buildings and Built Environments Ministry of EducationChongqing UniversityChongqing 400045China National Centre for International Research of Low-carbon and Green Buildings Ministry of Science and TechnologyChongqing UniversityChongqing 400045China Power China Huadong engineering Corporation Limited Hangzhou 311122China

The yangtze river Basin in China is characterised by hot-and cold-humid climates in summer and winter, respectively. Thus, increased demand for heating and cooling energy according to the season, as well as poor indoor thermal comfort, are inevitable. To overcome this problem, this study focused on the influence of passive design and heating, ventilation, and air conditioning equipment performance on the energy performance of residential buildings, and explored potential energy-saving technology paths involving passive design and improved coefficient of performance through a multi-objective and multi-parameter optimisation technique. A large-scale questionnaire survey covering a typical city was first conducted to identify family lifestyle patterns regarding time spent at home, family type, air conditioner use habits, indoor thermal comfort, etc. Then, the actual heating and cooling energy consumption and information of model building were determined for this region. Subsequently, the design parameters of an individual building were simulated using Energyplus to investigate the cooling and heating energy consumption for a typical residential building with an air conditioner. The results indicated an improvement of approximately 30% in energy efficiency through optimisation of the external-wall insulation thickness and the external-window and shading performance, and through use of appropriate ventilation technology. Thus, a multi-objective and multi-parameter optimisation model was developed to achieve comprehensive optimisation of several design parameters. Experimental results showed that comprehensive optimisation could not only reduce cooling and heating energy consumption, but also improve the thermal comfort level achieved with a non-artificial cooling and heating source. Finally, three energy-saving technology paths were formulated to achieve a balance between indoor thermal comfort improvement and the target energy efficiency(20 kWh/(m2?a)). The findings of

关键词： yangtze river Basin energy consumption multi-objective and multi-parameter optimisation passive design energy-saving technology path

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