scholarly journals Development of a Fast Urban Flood Model for Real-Time Applications

10.29007/1chf ◽  
2018 ◽  
Author(s):  
Vincent Wolfs ◽  
Victor Ntegeka ◽  
María Bermúdez ◽  
Patrick Willems
Keyword(s):  
Simulation Models ◽  
Fast Simulation ◽  
Urban Flood ◽  
Study Results ◽  
Surrogate Dual ◽  
Order Of Magnitude ◽  
1D Model ◽  
Urban Flood Modelling ◽  
Different Levels

Detailed 1D/2D models have become standard practice for urban flood modelling. However, many applications require computationally fast simulation models. Due to their prolonged calculation times, these 1D/2D models are unsuited for such applications. This research compares three modelling approaches with different levels of complexity and simulation times: (1) a highly detailed 1D/2D model, (2) a 1D/1D model with two different flood cone parameterizations, and (3) a newly developed surrogate dual drainage model. The three approaches are tested and compared on a Belgian case study. Results show that the surrogate dual drainage model can emulate the results of highly detailed models with calculation time reductions in the order of magnitude of 105.

scholarly journals Alternative Treatment for Asthma: Case Study of Success of Traditional Chinese Medicine Treatment of Children from Urban Areas with Different Levels of Environmental Pollution

ISRN Allergy ◽  
2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Helen Kopnina
Keyword(s):  
Chinese Medicine ◽  
Traditional Chinese Medicine ◽  
Urban Areas ◽  
Study Results ◽  
Children With Asthma ◽  
Chinese Medicine Treatment ◽  
Dutch Children ◽  
Asthma Case ◽  
Different Levels

The present study examined efficacy of traditional Chinese medicine (TCM) treatment in Dutch children with asthma in areas with differing air pollution. The study results indicate that TCM treatment of children living in more polluted urban area is less successful then that of children living in cleaner air area.

Technology-based multi-tiered building diagnosis framework

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Faisal Faqih ◽  
Tarek Zayed ◽  
Ghasan Alfalah
Keyword(s):  
Data Management ◽  
Design Methodology ◽  
Content Type ◽  
Tier Ii ◽  
Physical Deterioration ◽  
Study Results ◽  
Wear And Tear ◽  
Inspection Data ◽  
Different Levels

PurposeA building deteriorates over time due to aging, wear and tear, and inadequate maintenance. Building diagnosis requires a sound knowledge of engineering, building defects, and detection tools to assess the condition of a building. The physical deterioration of a building reduces its ability to perform its intended function, while environmental deterioration influences the comfort and health of building occupants. This study presents a multi-tiered framework for the inspection of building elements and the environmental conditions of a building.Design/methodology/approachA three-tiered building inspection framework is proposed in this study, which consists of the following: Tier-I—a preliminary inspection, Tier-II—a detailed inspection, and Tier-III—an expert investigation. Each tier of inspection assesses the severity of building defects using different technologies for different levels of inspection.FindingsProposed multi-tier inspection framework is tested and implemented on a case study. Results were promising, with organized data management on a common platform for both physical and environmental condition inspection having the potential to save time.Originality/valueThe application program developed for the implementation of structured multi-tiered building inspection provides better documentation and data management for building inspection data that can save time involved in manual data operations in traditional paper-based processes.

scholarly journals Application of Scenario Analysis and Multiagent Technique in Land-Use Planning: A Case Study on Sanjiang Wetlands

2013 ◽  
Vol 2013 ◽  
pp. 1-10
Author(s):  
Huan Yu ◽  
Shi-Jun Ni ◽  
Bo Kong ◽  
Zheng-Wei He ◽  
Cheng-Jiang Zhang ◽  
...  
Keyword(s):  
Land Use ◽  
Scenario Analysis ◽  
Land Use Planning ◽  
Simulation Models ◽  
Sanjiang Plain ◽  
Freshwater Wetlands ◽  
The Sanjiang Plain ◽  
Qualitative And Quantitative ◽  
Study Results

Land-use planning has triggered debates on social and environmental values, in which two key questions will be faced: one is how to see different planning simulation results instantaneously and apply the results back to interactively assist planning work; the other is how to ensure that the planning simulation result is scientific and accurate. To answer these questions, the objective of this paper is to analyze whether and how a bridge can be built between qualitative and quantitative approaches for land-use planning work and to find out a way to overcome the gap that exists between the ability to construct computer simulation models to aid integrated land-use plan making and the demand for them by planning professionals. The study presented a theoretical framework of land-use planning based on scenario analysis (SA) method and multiagent system (MAS) simulation integration and selected freshwater wetlands in the Sanjiang Plain of China as a case study area. Study results showed that MAS simulation technique emphasizing quantitative process effectively compensated for the SA method emphasizing qualitative process, which realized the organic combination of qualitative and quantitative land-use planning work, and then provided a new idea and method for the land-use planning and sustainable managements of land resources.

scholarly journals Large-Scale GIS-Based Urban Flood Modelling: A Case Study on the City of Ouagadougou

2018 ◽  
pp. 703-717
Author(s):  
Christophe Bouvier ◽  
Nanée Chahinian ◽  
Marko Adamovic ◽  
Claire Cassé ◽  
Anne Crespy ◽  
...  
Keyword(s):  
Large Scale ◽  
Urban Flood ◽  
Flood Modelling ◽  
The City ◽  
Urban Flood Modelling

Comparing modelling techniques for analysing urban pluvial flooding

2013 ◽  
Vol 69 (2) ◽  
pp. 305-311 ◽  
Author(s):  
E. van Dijk ◽  
J. van der Meulen ◽  
J. Kluck ◽  
J. H. M. Straatman
Keyword(s):  
Extreme Rainfall ◽  
Simulation Models ◽  
Surface Flow ◽  
Extreme Rainfall Event ◽  
Urban Flood ◽  
Flood Modelling ◽  
Flow Models ◽  
2D Simulation ◽  
Modelling Techniques ◽  
Urban Flood Modelling

Short peak rainfall intensities cause sewer systems to overflow leading to flooding of streets and houses. Due to climate change and densification of urban areas, this is expected to occur more often in the future. Hence, next to their minor (i.e. sewer) system, municipalities have to analyse their major (i.e. surface) system in order to anticipate urban flooding during extreme rainfall. Urban flood modelling techniques are powerful tools in both public and internal communications and transparently support design processes. To provide more insight into the (im)possibilities of different urban flood modelling techniques, simulation results have been compared for an extreme rainfall event. The results show that, although modelling software is tending to evolve towards coupled one-dimensional (1D)–two-dimensional (2D) simulation models, surface flow models, using an accurate digital elevation model, prove to be an easy and fast alternative to identify vulnerable locations in hilly and flat areas. In areas at the transition between hilly and flat, however, coupled 1D–2D simulation models give better results since catchments of major and minor systems can differ strongly in these areas. During the decision making process, surface flow models can provide a first insight that can be complemented with complex simulation models for critical locations.

scholarly journals Influence of additional hierarchical levels on the working characteristics of distributed models

2020 ◽  
Vol 15 (90) ◽  
pp. 78-90
Author(s):  
Alexey A. Veselov ◽  
Keyword(s):  
Simulation Models ◽  
Hierarchical Level ◽  
Maximum Speed ◽  
Distributed Models ◽  
Modern Computer ◽  
Levels Of Detail ◽  
Computer Equipment ◽  
Wide Range ◽  
Order Of Magnitude ◽  
Different Levels

In designing modern computer equipment and digital electronics, the use of simulation models is of great importance. At first, monolithic models were widely used for this. However, they worked well only when their size was relatively small. Because of it developers began to refuse gradually use of monolithic models and to pass to use of the distributed models allowing to increase their speed and to expand borders of their admissible sizes. At the same time, they begin to pay special attention to hierarchical distributed models, which provide the opportunity to investigate the behavior of the created devices at different levels of detail. Similar models made it possible to noticeably expand the permissible boundaries of their sizes and increase the speed of work. However, such distributed models have the disadvantage that their effectiveness is noticeably dependent not only on the number of components included in their composition, but also on the size of these components. he paper presents the results of a study of the effect of introducing an additional upper hierarchical level on the performance of distributed models based on Petri networks. The use of such a method of modifying distributed models leads to an increase in their speed in a wide range of changes in their sizes. At the same time, the most significant effect achieved in distributed models containing a large number of small components. The maximum speed of the thus modified models can be an order of magnitude higher than that of the non-modified ones. As a result, in addition to the overall increase in the efficiency of the modified hierarchical distributed models, this also led to a significant equalization of the performance of the modified distributed models with subordinate components of different sizes.

PROCESSING AND IMAGING OF MARINE SEISMIC DATA FROM THE JEQUITINHONHA BASIN (BAHIA, BRAZIL)

2016 ◽  
Vol 33 (3) ◽  
Author(s):  
Lourenildo W.B. Leite ◽  
J. Mann ◽  
Wildney W.S. Vieira
Keyword(s):  
Seismic Data ◽  
Sedimentary Basins ◽  
Study Results ◽  
Marine Seismic ◽  
Present Case Study

ABSTRACT. The present case study results from a consistent processing and imaging of marine seismic data from a set collected over sedimentary basins of the East Brazilian Atlantic. Our general aim is... RESUMO. O presente artigo resulta de um processamento e imageamento consistentes de dados sísmicos marinhos de levantamento realizado em bacias sedimentares do Atlântico do Nordeste...

come_NET

2018 ◽  
Author(s):  
Konstantin Aal ◽  
Anne Weibert ◽  
Kai Schubert ◽  
Mary-Ann Sprenger ◽  
Thomas Von Rekowski
Keyword(s):  
Social Media ◽  
Design Process ◽  
Participatory Design ◽  
Controlled Environment ◽  
Design And Implementation ◽  
Neighborhood Contexts ◽  
Study Results ◽  
Computer Club ◽  
Close Cooperation

The case study presented in this chapter discusses the design and implementation of an online platform, “come_NET,” in the context of intercultural computer clubs in Germany. This tool was built in close cooperation with the children and adult computer club participants. It was designed to foster the sharing of ideas and experiences across distances, support collaboration, and make skills and expertise accessible to others in the local neighborhood contexts. In particular, the participatory-design process involving the children in the computer clubs fostered a profound understanding of the platform structure and functionalities. The study results show how younger children in particular were able to benefit, as the closed nature of the platform enabled them to gather experience as users of social media, but in a safe and controlled environment.

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