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Distributed System Behavior Modeling with Ontologies, Rules, and Message Passing Mechanisms

Procedia Computer Science 2015年 44卷 373-382页

作者： Mark Austin Parastoo Delgoshaei Alan Nguyen Associate Professor Institute for Systems Research University of Maryland College Park MD 20742 USA Graduate Student Ph.D. Program in Civil Systems Department of Civil and Environmental Engineering University of Maryland College Park MD 20742 USA. Systems Engineer Constellation Energy Washington D.C

Modern societal-scale infrastructures (e.g., buildings, roads, railways, and power supplies) that are defined by spatially distributed network structures, concurrent subsystem-level behaviours, distributed control and decision making, and interdependencies among subsystems that are not always well understood. During both Hurricanes Katrina and Sandy, it quickly became evident a disturbance in one system can impact other networks in ways that are both unexpected and undesirable. Such outcomes put engineering designers and urban planners (decision makers) in a tough spot where quantitative decision-making regarding the adequacy of system infrastructure is complicated by the presence of newfound system interactions. This paper takes a first step toward providing designers and planners with computational support for simulation of distributed system behaviours with system-level interactions. We describe an experimental software prototype for distributed event-based system behaviour modelling with ontologies, rules checking and message passing mechanisms. Key features of the software architecture are demonstrated through the development of two scenarios: (1) A family interacting with a school system, and (2) Simulation of adjustments to the Washington DC Metro System schedule in response to a severe storm.

关键词： Distributed System Modeling Ontologies Rule Checking Jena API

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Structural behavior of HFRP-UHPFRC composite girders

Structural behavior of HFRP-UHPFRC composite girders

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Structures Congress 2013: Bridging Your Passion with Your Profession

作者： Nguyen, H. Mutsuyoshi, H. Zatar, W. Nick J. Rahall II Appalachian Transportation Institute P.O. Box 5425 Huntington WV 25703-0425 United States Saitama University Japan International Collaborative Graduate Program on Civil and Environmental Engineering Saitama University Shimo-Okubo 255 Sakura-ku Saitama-shi 338-8570 Japan College of Information Technology and Engineering Marshall University 112 Gullickson Hall Huntington WV 25755-2586 United States

ISBN: (纸本)9780784412848

This paper presents the structural behavior of composite girders composed of glass/carbon fiber reinforced polymers (GFRP/CFRP) I-profiles and precast Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) slabs. Three full-scale composite girders with varying UHPFRC slab widths were tested under four point loading to examine the flexural behavior of the composite girders. Shear connectors with/without epoxy bonding were used. The bolt shear connectors and epoxy were used to resist the horizontal shear flow at the interface between the hybrid CFRP/GFRP (HFRP) I-profile and the UHPFRC slab. The composite action between the HFRP I-profile and UHPFRC slab was investigated. The test results showed that the composite girders exhibited significant improvements in stiffness and strength, above those of single HFRP girders. Three-dimensional nonlinear finite element (FE) analysis was carried out and compared against the experimental results of the tested girders. A fairly good agreement among the experimental and FE analysis results was found. The study revealed that the HFRP-UHPFRC composite girders are efficient and can provide a competitive, cost-effective and sustainable solution to bridge structures. © 2013 American Society of civil Engineers.

关键词： Cost effectiveness

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Numerical analysis of the influence of the contact boundary condition and specimen geometry on concrete compressive strength

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Procedia Structural Integrity 2023年 47卷 261-267页

作者： Caroline Bremm Luísa Inda Leandro Ferreira Friedrich Sabrina Vantadori Ignacio Iturrioz Luis Kosteski Engineering Post Graduation Program Federal University of Pampa Av. Tiaraju 810 Alegrete 97546-550 Brazil Civil Engineering Graduate Program Federal University of Pampa Av. Tiaraju 810 Alegrete 97546-550 Brazil Program of Mechanical Pos-Graduation Federal University of Rio Grande do Sul Sarmento Leite 425 Porto Alegre 90040-060 Brazil Department of Engineering & Architecture University of Parma Parco Area delle Scienze 181/A 43124 Parma Italy

In the present paper, the influence of the contact boundary condition and specimen geometry on the concrete compressive strength is numerically investigated by using a version of the Lattice Discrete Element Method (LDEM), implemented on Abaqus/Explicit. More precisely, two types of contact boundary conditions are considered and, for each of them, three different slenderness levels (height/width ratio - h/b) are analyzed (that is, h/b = 0.5, 1.0, and 2.0) by considering a square cross-section. Moreover, for h/b = 2.0, a circular cross-section is also examined. Two models are developed: one by using the LDEM and the other by using a hybrid model, combining Finite Elements and LDEs. The results show that both the boundary conditions and the sample geometry influence the axial compressive strength.

关键词： Abaqus concrete compressive strength Lattice Discrete Element Method (LDEM)

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Flood Susceptibility Mapping using GIS Based on Fuzzy AHP Method in Keureuto River Basin, Aceh

Flood Susceptibility Mapping using GIS Based on Fuzzy AHP Me...

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Science and Information Technology in Smart Administration (ICSINTESA), International Conference of

作者： Maimun Rizalihadi Alfiansyah Yulianur Yuwaldi Away Ella Meilianda Doctoral Program. Post Graduate. Program. Syiah Kuala University Banda Aceh Indonesia Civil Engineering Department Syiah Kuala University Banda Aceh Indonesia Elect. and Compt. Eng. Department Syiah Kuala University Banda Aceh Indonesia

ISBN: (数字)9798350376111

ISBN: (纸本)9798350376128

Flood susceptibility mapping become crucial for describing flood risk zones and development mitigation actions. By means of a multi-criteria decision analysis-Analytical Hierarchy Process (MCDA-AHP), this study examined flood-inundation of Keureuto watershed in North Aceh. The study employed a mixture of AHP and GIS (Geographic Information System) on a fuzzy environment, and tested with the field observation by mean of AUC-ROC method to see its accuracy. Eleven key criteria that can trigger floods were chosen: rainfall, flow accumulation, river density, distance to the river, elevation, slope, TWI, LULC, soil type, NDVI, and curvature. The significance of all of criteria was arranged based on the weights which is determined using Fuzzy-AHP (FAHP) pairwise comparison matrix (PCM). The highest flood-triggering criteria were rainfall (0.199), TWI (0.159), flow accumulation (0.143), distance to rivers (0.094), and slope (0.091). Based on fuzzy overlay, the area of $323.747 \mathrm{~km}^{2}\left(34.635 \%\right.$ of $934.745 \mathbf{k m}^{2}$ of total area) was high to very high flood susceptibility which is mostly concentrated in downstream of river basin, while the area of $610.998 \mathrm{~km}^{2}(65.365 \%$ of the total area) has moderate to very low flood susceptibility. where the model achieved a higher AUC value of $\mathbf{7 7. 8 9 \%}$, indicating better performance. It is proved that the FAHP model is very good for forecasting flood-inundation areas in the Keureuto River basin.

关键词： Phase change materials Rain Accuracy Prevention and mitigation Watersheds Soil Predictive models Rivers Floods Geographic information systems

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Challenges and opportunities for third-generation ethanol production:A critical review

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engineering Microbiology 2023年第1期3卷 22-36页

作者： Caroline Müller Thamarys Scapini Alan Rempel Ederson Rossi Abaide Aline Frumi Camargo Mateus Torres Nazari Viviani Tadioto Charline Bonatto Marcus Vinícius Tres Giovani Leone Zabot Luciane Maria Colla Helen Treichel Sérgio Luiz Alves Jr Laboratory of Yeast Biochemistry Federal University of Fronteira SulCampus ChapecóSC 484Km 2ChapecóSCBrazil Laboratory of Microbiology and Bioprocess Environmental Science and TechnologyFederal University of Fronteira SulCampus ErechimRS 135200ErechimRSBrazil Graduate Program in Civil and Environmental Engineering University of Passo FundoBR 285Passo FundoRSBrazil Department of Chemical Engineering Federal University of Santa Maria1000Roraima AvenueSanta MariaRS 97105-900Brazil Laboratory of Agroindustrial Processes Engineering Federal University of Santa Maria1040Sete de Setembro st.Cachoeira do SulRSBrazil

In recent decades,third-generation(3G)biofuels have become a more attractive method of fuel production,as algae cultivation does not infringe on resources needed for food ***,algae can adapt to different environments,has high photosynthetic efficiency(CO_(2)fixation),and has a high potential for carbohydrate *** prevalence of algae worldwide demonstrates its ability to adapt to different environments and climates,proving its biodiversity and *** can be grown in wastewater,seawater,and even sewage,thus ensuring a lower water footprint and greater energy efficiency during algal biomass *** of this,the optimization of 3G ethanol production appears to be an excellent alternative to mitigate environmental impacts and increase energy and food *** critical review presents(i)the stages of cultivation and processing of micro and macroalgae;(ii)the selection of yeasts(through engineering and/or bioprospecting)to produce ethanol from these biomasses;(iii)the potential of seawater-based facilities to reduce water footprint;and(iv)the mass and energy balances of 3G ethanol production in the world energy *** article is,above all,a brainstorm on the environmental viability of algae bioethanol.

关键词： Algae ethanol Biomass Energy balance Seawater Water footprint Yeasts

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Flood handling with priority scale determination in Samarinda Seberang from East Kalimantan Province Indonesia

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IOP Conference Series: Materials Science and engineering 2020年第1期885卷

作者： SSN. Banjarsanti P. Kukuh Theta Margaritifera Civil Engineering Study Program Samarinda State Polytechnic Civil Engineering Post-graduate Program Gunadarma University Depok

Handling of flooding caused by changes in land use often causes changes and problems in the magnitude of runoff coefficient, discharge, water level, and drainage channel dimensions, as happened in Samarinda Seberang. The purpose of this study was to plan a drainage channel according to the priority scale using the Rational Modification Method as a Hydrological Analysis and Manning as a Hydraulics Analysis. Handling method is carried out in the form of structuring and planning the drainage system according to priority scale based on inundation parameters, economic studies, social and transportation disturbances, loss of housing areas, and property rights. The higher the criteria for handling the area is a priority. The results showed that the highest priority scale (610) was obtained on Cipto Mangunkusumo street, and the lowest priority scale (220) was at Bung Tomo street and Hasanuddin street. Cipto Mangunkusumo street as the highest priority scale will be planned for the first priority drainage channel with a design flood discharge in the 10 year return period (Q) 7.79 m3 / sec, the drainage channel dimension consists of the basic width of the channel (b) 0.77 m ∼ 0.80 m, channel peak width (T) 3.30 m, channel depth (h) 1.925 m, watch height (f) 0.6 m, total depth 2.52 m, and slope of channel wall (m) 1: 1).

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Photodegradation of Profenofos in Aqueous Solution by Vacuum Ultraviolet

SSRN

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SSRN 2022年

作者： Ratpukdi, Thunyalux Siripattanakul-Ratpukdi, Sumana Thongprowh, Prapaipim Soontharo, Somphong Jenjaiwit, Supitchaya Prasertwongchai, Anuchit Anotai, Jin Nongsung, Pawonkorn Khan, Eakalak Department of Environmental Engineering Faculty of Engineering Research Center for Environmental and Hazardous Substance Management Khon Kaen University Khon Kaen40002 Thailand Department of Environmental Engineering Faculty of Engineering King Mongkut’s University of Technology Thonburi Bangkok10140 Thailand Bangkok10330 Thailand International Postgraduate Program in Environmental Management Graduate School Chulalongkorn University Bangkok10330 Thailand Department of Civil and Environmental Engineering and Construction University of Nevada Las VegasNV89154 United States

Profenofos is a widely used organophophorous pesticide for several crops and is detected in drinking water sources. This study investigated the degradation of profenofos using vacuum ultraviolet (VUV) compared with ultraviolet (UV). The factors affecting the degradation performance including pH, profenofos concentration, bicarbonate, nitrate, nitrite, natural organic matter (NOM), and aeration were examined. Profenofos removal efficiencies were 84% and 52% by VUV and UV after 7 min of irradiation, respectively (Initial profenofos concentration of 2 mg/L). Degradation of profenofos by VUV were 3 times faster than UV. The degradation rates decreased with increasing initial profenofos concentration. Direct photolysis at 185 nm and OH • played major roles for profenofos removal by VUV. Aeration enhanced the profenofos degradation and mineralization by VUV but not UV. Bicarbonate inhibited the profenofos degradation while nitrate (≤50 mg-NO 3 - /L) acted as a photosensitizer enhancing profenofos degradation. NOM from groundwater and surface water sources also inhibited the profenofos removal by VUV as high as 39% compared to deionized water. However, NOM promoted the profenofos removal by UV because degradation by OH • formed via NOM photolysis became the main degradation mechanism. The result of profenofos degradation under isolated NOM fractions elucidated that hydrophobic fractions had less inhibition compared to hydrophilic fractions. Identified products suggested the pathway of profenofos photodegradation were the breaking of the O-P bond and reduction of Br. © 2022, The Authors. All rights reserved.

关键词： Irradiation

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D-SRGAN: DEM Super-Resolution with Generative Adversarial Networks

arXiv

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arXiv 2020年

作者： Demiray, Bekir Z. Sit, Muhammed Demir, Ibrahim Department of Computer Science University of Iowa Iowa City United States Graduate Program in Informatics University of Iowa Iowa City United States Department of Civil & Environmental Engineering University of Iowa Iowa City United States

—LIDAR (light detection and ranging) is an optical remote-sensing technique that measures the distance between sensor and object, and the reflected energy from the object. Over the years, LIDAR data has been used as the primary source of Digital Elevation Models (DEMs). DEMs have been used in a variety of applications like road extraction, hydrological modeling, flood mapping, and surface analysis. A number of studies in flooding suggest the usage of high- resolution DEMs as inputs in the applications improve the overall reliability and accuracy. Despite the importance of high-resolution DEM, many areas in the United States and the world do not have access to high-resolution DEM due to technological limitations or the cost of the data collection. With recent development in Graphical Processing Units (GPU) and novel algorithms, deep learning techniques have become attractive to researchers for their performance in learning features from high-resolution datasets. Numerous new methods have been proposed such as Generative Adversarial Networks (GANs) to create intelligent models that correct and augment large-scale datasets. In this paper, a GAN based model is developed and evaluated, inspired by single image super-resolution methods, to increase the spatial resolution of a given DEM dataset up to 4 times without additional information related to data. Copyright © 2020, The Authors. All rights reserved.

关键词： Generative adversarial networks

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Retracted: Implementation Method CUSUM to Determine the Accident Prone Areas in Web Based

Retracted: Implementation Method CUSUM to Determine the Acci...

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2018 Workshop on Multidisciplinary and Its Applications: Applied Mathematics, Computer Science, Information Systems, and Information Technology, WMA-Mathcomtech 2018

作者： Dinata, Rozzi Kesuma Abdullah, Dahlan Hartono, H. Erliana, Cut Ita Riasti, Berliana Kusuma Iskandar, Akbar Sari, Ifit Novita Nurmawati, N. Nanuru, Ricardo Freedom Putri, Lusi Dwi Manurung, Rosida Tiurma Sriadhi, S. Saleh, A.A. Astari, T. Khaddafi, Muammar Department of Informatics Universitas Malikussaleh Aceh Indonesia Department of Computer Science STMIK IBBI Medan Indonesia Department of Industrial Engineering Universitas Malikussaleh Aceh Indonesia Department of Informatics Universitas Sebelas Maret Surakarta Indonesia Department of Informatics STMIK AKBA Makassar Indonesia Departement Of: Social Science Education Program Post Graduate Program Universitas Kanjuruhan Malang Malang Indonesia Faculty of Industry Technique University of 45 Surabaya Indonesia Universitas Kristen Indonesia Maluku Ambon Indonesia Department of Civil Engineering Universitas Lancang Kuning Pekanbaru Indonesia Graduate Program in Scientific Psychology Universitas Kristen Maranatha Indonesia Department of Electrical Engineering Universitas Negeri Medan Indonesia Statistics Financial and Social Sciences Research Group Indonesia Department of Elementary School Teacher Education STKIP Citra Bangsa Aceh Utara Indonesia Department of Accounting Universitas Malikussaleh Aceh Indonesia

At the Unit Laka Lantas Polres Lhokseumawe determining accident-prone areas on roads in Lhokseumawe still using manual systems. Determination of accident-prone areas are less effective because the police Unit Laka Lantas Polres Lhokseumawe just using the data of the last year and had to repeatedly calculate manually accident-prone areas based on the number of human casualties. In this study the system implementation CUSUM method (Cummulative Summary) to determine the accident-prone areas designed using the web-based programming language PHP. In this system there are three processes to determine areas prone to accidents, the accident rate calculations based on the weighted severity, blacksite calculations using the Z-Score method for determining areas prone to accident blackspots and calculations using the CUSUM method to determine the critical points of an accident. The data used are secondary data obtained from the Police Unit Laka Lantas Polres Lhokseumawe years 2009-2013. © Published under licence by IOP Publishing Ltd.

关键词： Accidents

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Rheology and 3d Printing of Alginate Bio-Stabilized Earth Concrete

SSRN

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SSRN 2023年

作者： Maierdan, Yierfan Armistead, Samuel J. Mikofsky, Rebecca A. Huang, Qiqi Ben-Alon, Lola Srubar, Wil V. Kawashima, Shiho Columbia University Department of Civil Engineering and Engineering Mechanics New YorkNY10027 United States Columbia University Graduate School of Architecture Planning and Preservation New YorkNY10027 United States University of Colorado Boulder Department of Civil Environmental and Architectural Engineering United States University of Colorado Boulder Materials Science and Engineering Program United States

Driven by the need for sustainable construction solutions, there is renewed interest in earth-based materials. Biopolymer stabilizers can enhance the rheological and structural properties of these materials to facilitate their use in 3D printing. This research examined the influence of sodium alginate on the stability, particle interaction, rheology, and 3D printability of kaolinite, a commonly found clay mineral in soils deemed suitable for construction. Findings revealed that sodium alginate could boost electrostatic interactions to enhance the stability of kaolinite suspensions. This rise in repulsive potential energy also reduced storage modulus and yield stress by orders of magnitude. However, as the alginate content increased beyond its cross-linking concentration (0.12% - 0.6%), a reverse trend was observed, which was attributed to the formation of a three-dimensional polymer network. Furthermore, alginate addition shifted the "printability window" of kaolinite suspensions to mixtures with higher solid contents, which has positive implications on strength and shrinkage. © 2023, The Authors. All rights reserved.

关键词： Biomolecules

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