scholarly journals Mode Selection of Urban Distribution Systems in the Low Carbon Environment

2016 ◽  
Author(s):  
Lei Yang ◽  
Yiji Cai
Keyword(s):  
Distribution Systems ◽  
Mode Selection ◽  
Low Carbon ◽  
Urban Distribution ◽  
Selection Of

scholarly journals A Method of Power Supply Mode Selection for Urban Distribution Network Planning Based on Association Rules

2015 ◽  
Vol 3 (5) ◽  
pp. 421-433 ◽  
Author(s):  
Cunbin Li ◽  
Shuke Li ◽  
Yunqi Liu
Keyword(s):  
Association Rules ◽  
Power Supply ◽  
Mode Selection ◽  
Distribution Network ◽  
Network Planning ◽  
Distribution Network Planning ◽  
Urban Distribution ◽  
Supply Mode ◽  
Power Supply Mode ◽  
Selection Of

AbstractBased on association rules, this article proposed a method for intelligent recommendation of power supply mode, which helps decision-makers in the selection of many schemes. Firstly, a history database which includes the forecasting models and correlative factors was first built and association rule mining was conducted; then combined with the correlative factors in the designated area, the criteria matching in the rules mined were carried out with CBR technique; finally automatic recommendation of the power supply modes was achieved under the given conditions. By application of an example, it is demonstrated that the proposed method can not only automatically analyze the applicability of power supply modes and the intrinsic relationship between correlative factors but also provide, to some extent, theoretical basis for selection of power supply modes and practical utility for urban distribution network planning.

scholarly journals Urban Distribution Mode Selection under Low Carbon Economy—A Case Study of Guangzhou City

2016 ◽  
Vol 8 (7) ◽  
pp. 673 ◽  
Author(s):  
Lei Yang ◽  
Yiji Cai ◽  
Jiahui Hong ◽  
Yongqiang Shi ◽  
Zhiyong Zhang
Keyword(s):  
Mode Selection ◽  
Low Carbon ◽  
Low Carbon Economy ◽  
Guangzhou City ◽  
Distribution Mode ◽  
Urban Distribution ◽  
Carbon Economy

The Path Selection of Low Carbon Building Development

2013 ◽  
Vol 409-410 ◽  
pp. 660-663
Author(s):  
Xiao Wei Wu
Keyword(s):  
Economic Transition ◽  
Path Selection ◽  
Scientific Development ◽  
Low Carbon ◽  
Paper Briefly ◽  
Low Carbon Economy ◽  
Development Concept ◽  
Realistic Choice ◽  
Selection Of ◽  
Carbon Economy

the development of low carbon building is not only the requirement of current economic transition,it is also the realistic choice to implement Scientific Development Concept and to build "two type society". This paper briefly describes the connotation of low carbon buildings , and then illustrates the low-carbon economy background, the necessity of low carbon building development, and finally put forward the corresponding path selection.

scholarly journals Influence of different copper materials on biofilm control using chlorine and mechanical stress

2020 ◽  
Author(s):  
Inês B. Gomes ◽  
Lúcia Simões ◽  
Manuel Simões
Keyword(s):  
Shear Stress ◽  
Drinking Water ◽  
Mechanical Stress ◽  
Distribution Systems ◽  
Water Distribution ◽  
Drinking Water Distribution Systems ◽  
Biofilm Control ◽  
Viable Cells ◽  
Drinking Water Distribution ◽  
Selection Of

<p>The selection of materials for plumbing application has potential implications on the chemical and microbiological quality of the delivered water. This work aims to evaluate the action of materials with different copper content (0, 57, 96 and 100%) on biofilm formation and control by chlorination and mechanical stress. A strain of <em>Stenotrophomonas maltophilia</em> isolated from drinking water was used as model microorganism and biofilms were developed in a rotating cylinder reactor (RCR) using realism-based shear stress conditions. Biofilms were characterized phenotypically and exposed to three control strategies: 10 mg/l of free chlorine for 10 min; an increased shear stress (equivalent to 1.5 m/s of fluid velocity); and the combination of both treatments. Biofilms formed on the copper materials had lower wet mass and produced significantly lower amounts of extracellular proteins than those formed on stainless steel (0% of copper content). Although, the effects of copper materials on biofilm cell density was not significant, these materials had important impact on the efficacy of chemical and/or mechanical treatments. Biofilms formed on 96 or 100% copper materials had lower content of culturable bacteria than that observed on stainless steel after exposure to chlorine or shear stress. The mechanical treatment used had no relevant effects in biofilm control. The combination of chemical and mechanical treatments only caused higher culturability reduction than chlorine in biofilms formed on 57% copper alloy. The number of viable cells present in bulk water after biofilm treatment with chlorine was lower when biofilms were formed on any of the copper surface. The overall results are of potential importance on the selection of materials for drinking water distribution systems, particularly for house and hospital plumbing systems to overcome the effects from chlorine decay. Copper alloys may have a positive public health impact by reducing the number of viable cells in the delivered water after chlorine exposure and improving the disinfection of DW systems. Moreover, the results demonstrate that residual chlorine and mechanical stress, two strategies conventionally used for disinfection of drinking water distribution systems, failed in <em>S. maltophilia</em> biofilm control.</p> <p><strong>Acknowledgements:</strong></p> <p>This work was the result of the projects: UIDB/00511/2020 of the Laboratory for Process Engineering, Environment, Biotechnology and Energy – LEPABE - funded by national funds through the FCT/MCTES (PIDDAC); PTDC/BII-BTI/30219/2017 - POCI-01-0145-FEDER-030219; POCI-01-0145-FEDER-006939, funded by FEDER funds through COMPETE2020 – Programa Operacional Competitividade e Internacionalização (POCI) and by national funds (PIDDAC) through FCT/MCTES; NORTE-01-0145-FEDER-000005 – LEPABE-2-ECO-INNOVATION, supported by Norte Portugal Regional Operational Programme (NORTE 2020), under PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (ERDF).</p>

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