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The effect of using crumb rubber on fatigue and rutting lives in flexible pavement

IOP Conference Series: Materials Science and engineering 2020年第1期732卷

作者： T A Balqis S Suherman Post-Graduate Student of Infrastructure Engineering Study Program Applied Master Program Politeknik Negeri Bandung Bandung Indonesia Civil Engineering Department Politeknik Negeri Bandung Bandung Indonesia

This research is performed to analyze effect of using crumb rubber (CR) on the overlay design of Palembang City – Betung roads. Analysis of existing road conditions using the AASHTO 1993. This analysis based on deflection data using the Falling Weight Deflectometer (FWD). While, the overlay design analysis using CIRCLY 7.0 software to determine horizontal tensile strain (εh) for fatigue live and vertical compressive strain (εv) for rutting live parameters. The result showed that using CR can increase fatigue live into 66 % and rutting lives into 22 % for contribute pavement performance. To ensure the effect of CR in pavement's performance, further research must be taken to find out if there are other effects that support.

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Correction to: Improvement of recycled concrete aggregate using alkali-activated binder treatment

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Materials and Structures 2022年第1期55卷 1-1页

作者： Damrongwiriyanupap, Nattapong Wachum, Akaraphol Khansamrit, Kamonphop Detphan, Satakhun Hanjitsuwan, Sakonwan Phoo-ngernkham, Tanakorn Sukontasukkul, Piti Li, Long-yuan Chindaprasirt, Prinya Department of Civil Engineering School of Engineering University of Phayao Phayao Thailand Sustainable Construction Material Technology Research Unit Department of Civil Engineering Faculty of Engineering and Technology Rajamangala University of Technology Isan Nakhon Ratchasima Thailand Program of Civil Technology Faculty of Industrial Technology Lampang Rajabhat University Lampang Thailand Construction and Building Materials Research Center Department of Civil Engineering Faculty of Engineering King Mongkut’s University of Technology-North Bangkok Bangkok Thailand School of Engineering Faculty of Science and Engineering Plymouth University Plymouth United Kingdom Sustainable Infrastructure Research and Development Center Department of Civil Engineering Faculty of Engineering Khon Kaen University Khon Kaen Thailand Academy of Science The Royal Society of Thailand Dusit Bangkok Thailand

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A Benchmark Model for Predicting Building Energy and Daylight Performance in The Early Phase of Design Utilizing Parametric Design Exploration

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IOP Conference Series: Earth and Environmental Science 2021年第1期830卷

作者： Rendy Perdana Khidmat Hiroatsu Fukuda Kustiani Andi Prasetiyo Wibowo Fukuda Laboratory Graduate School of Environmental Engineering The University of Kitakyushu Kitakyushu Japan Architecture Study Program Department of Infrastructure and Regional Technology Institut Teknologi Sumatera Lampung Indonesia Department of Architecture Faculty of Engineering Bandar Lampung University Lampung Indonesia. Department of Architecture Universitas Atma Jaya Yogyakarta Yogyakarta Indonesia.

Along with the enormous impact on computational development in architecture and urban design, the way in approaching the built environment is shifting and intended to look closer to performance and evidence-based design. This development holds promise in handling complex computation to approach desired targeted design goals. However, the implementation of form-finding and design performance optimization still lacks, particularly in Japan's sub-tropical climate. This paper describes the parametric design and design exploration process's implementation through the generative algorithm platform to develop a benchmark model to predict building energy and daylight performance and find possible design solutions from the iteration process during the early phase of the design process. The variables incorporated related to the glazing ratio, the length of the overhang, and building orientation. Grasshopper, a parametric-based plugin that works in Rhinoceros, is used to arrange a parametric definition for the overall experiment. The tools used to investigate the environmental analysis and energy consumption are Ladybug and Honeybee, and the exploration process will be conducted using Design Explorer. The context will be situated in Orio district and uses the EPW file of Kitakyushu city, Fukuoka, Japan. The results of this research furthermore can potentially be a comparison for more dynamic factors.

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Response to Hu, Yang, and Sun

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Journal of the National Cancer Institute 2025年第3期117卷 572-573页

作者： Nascimento de Lima, Pedro Rutter, Carolyn M. van den Puttelaar, Rosita Hahn, Anne I. Ozik, Jonathan Collier, Nicholson Zauber, Ann G. Lansdorp-Vogelaar, Iris Inadomi, John M. Engineering and Applied Sciences Department RAND Arlington VA United States Public Health Sciences Division Fred Hutchinson Cancer Research Center Hutchinson Institute for Cancer Outcomes Research and Biostatistics Program Seattle WA United States Department of Public Health Erasmus MC University Medical Center Rotterdam Netherlands Department of Epidemiology and Biostatistics Memorial Sloan Kettering Cancer Center New York NY United States Decision and Infrastructure Sciences Division Argonne National Laboratory Lemont IL United States Department of Internal Medicine University of Utah School of Medicine Salt Lake City UT United States

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Numerical modelling of penstock flow in dam

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AIP Conference Proceedings 2023年第1期2544卷

作者： N. M. Zahari M. H. Zawawi Nurhanani A. Aziz F. Nurhikmah Aizat Abas Fei Chong Ng L. M. Sidek M. R. M. Radzi Department of Civil Engineering College of Engineering Universiti Tenaga Nasional (UNITEN) Putrajaya Campus Jalan IKRAM-UNITEN 43000 Kajang Selangor Malaysia UNITEN R&D Sdn. Bhd. d/a Universiti Tenaga Nasional (UNITEN) Jalan IKRAM-UNITEN 43000 Kajang Selangor Malaysia School of Mechanical Engineering Engineering Campus Universiti Sains Malaysia 14300 Nibong Tebal Pulau Pinang Malaysia Institute of Energy Infrastructure (IEI) Universiti Tenaga Nasional (UNITEN) Putrajaya Campus Jalan IKRAM-UNITEN 43000 Kajang Selangor Malaysia Hydro Life Extension Program (HELP) Business Development (Asset) Unit TNB Power Generation Division Level 32 PJX HM Shah Tower 16A Jalan Persiaran Barat Seksyen 8 46050 Petaling Jaya Selangor Malaysia

This paper presents the numerical modeling on the flow in dam penstock structure using conventional finite volume method (FVM) simulation software, ANSYS Fluent. The water flows in the bottom outlet section that comprised of four penstocks were successfully simulated. The numerical model was validated with an experiment, which a considerably low discrepancy of 12%. It was found that the middle section of each penstock observed the highest flow velocity, indicating the regions sustained large stress from the rapid flow, which gives the higher deformation. However, the flow dynamics across all four penstocks are similar. Overall, this numerical study showed that the application of the FVM simulation tool to visualize the penstock flow is viable and useful for the subsequent dam reliability analysis.

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Alert and Response of Earthquake and Tsunami for Community Based Disaster Risk Reduction

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Journal of Physics: Conference Series 2021年第1期1811卷

作者： Rr M I Retno Susilorini Andre Kurniawan Pamudji Ridwan Sanjaya Amrizarois Ismail Ardhito Hayyu Amasto Department of Infrastructure and Environmental Engineering Faculty of Environmental Science and Technology Soegijapranata Catholic University Semarang Master Program of Environmental and Urban Studies Faculty of Environmental Science and Technology Soegijapranata Catholic University Semarang Department of Information System Faculty of Computer Science Soegijapranata Catholic University Semarang

Indonesia had been suffered by earthquake and tsunami for many centuries. Since many lives have taken by tsunami strikes, alert and response system are very important as important part of Disaster Risk Reduction, especially in area with high population density. This research conducted in Kangkung fishing village in Bandar Lampung coastal area which is an earthquake and tsunami prone area. The aim of the research is to study alert and response of Community Based Disaster Risk Reduction. The research conducted by qualitative method and purposive-descriptive approach. There were 53 respondents which participated in the survey and interview. It is reported that 'Smart Resilient City' model suitable for community needs of alert and response of earthquake and tsunami disaster. This research meets conclusion that 'Smart Resilient City' model may become a great solution in Community Based Disaster Risk Reduction to cope with the hazard of earthquake and tsunami comprehensively and sustainably.

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Na_1/3Ca_1/3Bi_1/3Cu₃Ti₄O₁₂–Ni@NiO/poly(vinylidene fluoride): Three–phase polymer composites with high dielectric permittivity and low loss tangent

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Results in Physics 2020年 18卷

作者： Kum-onsa, Pornsawan Phromviyo, Nutthakritta Thongbai, Prasit Materials Science and Nanotechnology Program Faculty of Science Khon Kaen University Khon Kaen 40002 Thailand Sustainable Infrastructure Research and Development Center Department of Civil Engineering Faculty of Engineering Khon Kaen University Khon Kaen 40002 Thailand KKU-Research Program Department of Physics Faculty of Science Khon Kaen University Khon Kaen 40002 Thailand Institute of Nanomaterials Research and Innovation for Energy (IN–RIE) NANOTEC–KKU RNN on Nanomaterials Research and Innovation for Energy Khon Kaen University Khon Kaen 40002 Thailand

High permittivity and low loss tangent polymer matrix composites containing a low loading of filler are desirable for practical applications in modern electronic devices. In this work, greatly improved dielectric properties of poly(vinylidene fluoride) (PVDF) were accomplished by incorporating high–permittivity Na_1/3Ca_1/3Bi_1/3Cu₃Ti₄O₁₂ (NCBCTO) ceramic particles with sizes of ~0.5–1.5 μm coupled with ~1.0–2.0 μm diameter core–shell Ni@NiO particles. Phase composition, crystal structures, morphology, microstructure, and dielectric properties of NCBCTO–Ni Ni@NiO/PVDF composites were investigated. A nonpolar α–phase and polar β– and γ–phases were detected in the PVDF matrix and NCBCTO–Ni/PVDF composites. Random dispersions of small clusters of NCBCTO and Ni particles were observed in the PVDF polymer matrix. Significantly enhanced dielectric permittivity, ≈279, which was higher than that of pure PVDF polymer by a factor of ≈27, was achieved. Surprisingly, the dielectric loss tangent was suppressed to a very low value of ≈0.07 at 1 kHz. The dielectric properties of the NCBCTO-Ni@NiO/PVDF composites are discussed based on the interfacial polarization at the internal interfaces. © 2020 The Authors

关键词： Dielectric loss tangent Dielectric permittivity Interfacial polarization PVDF Three–phase polymer composites

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Author Correction: Australian water quality trends over two decades show deterioration in the Great Barrier Reef region and recovery in the Murray-Darling Basin

Communications Earth & Environment

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Communications Earth & Environment 2025年第1期6卷 1页

作者： Danlu Guo Qian Zhang Camille Minaudo Rémi Dupas Clément Duvert Shuci Liu Kefeng Zhang Ulrike Bende-Michl Anna Lintern School of Engineering College of Systems & Society The Australian National University Canberra ACT Australia Institute for Water Futures The Australian National University Canberra ACT Australia University of Maryland Center for Environmental Science Annapolis MD USA U.S. Environmental Protection Agency Chesapeake Bay Program Office Annapolis MD USA Department of Evolutionary Biology Ecology and Environmental Sciences University of Barcelona Barcelona Spain INRAE L’Institut Agro UMR SAS Rennes France Research Institute for the Environment and Livelihoods Charles Darwin University Darwin NT Australia National Centre for Groundwater Research and Training (NCGRT) Adelaide SA Australia Department of Environment Science and Innovation Queensland Government Brisbane QLD Australia Water Research Centre School of Civil and Environmental Engineering UNSW Sydney Sydney NSW Australia Science and Innovation Group – Hydrology Research Bureau of Meteorology Canberra ACT Australia Department of Infrastructure Engineering The University of Melbourne Melbourne VIC Australia Department of Civil Engineering Monash University Melbourne VIC Australia

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Preventing bad behavior in academia

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四川生理科学杂志 2024年第7期46卷 1615-1615页

作者： Rayane da Cruz Albino Faculty of Pharmacy Federal University of Rio de Janeiro Rio de Janeiro RJ Brazil. Department of Host-Microbe Interactions St. Jude Children’s Research Hospital Memphis TN USA. School of the Environment The University of Queensland Whiterock QLD Australia. KU Leuven Ghent Belgium. Laboratory for Computational Social Systems Indraprastha Institute of Information Technology Delhi New Delhi India. University Medical College Shantou Guangdong China. Department of Ecoscience Aarhus Universitet Aarhus Denmark. Institute of Environment and Sustainable Development Banaras Hindu University Varanasi Uttar Pradesh India. Department of Medical Parasitology Faculty of Medicine and Health Sciences Sana’a University Sana’a Yemen and Tropical Disease Research Center Faculty of Medicine and Health Sciences University of Science and Technology Sana’a Yemen. Department of Medicine University of Montreal Montreal QC Canada. Electricity Infrastructure and Buildings Division Pacific Northwest National Laboratory Portland OR USA. Department of Biological Sciences University of New Brunswick Saint John Saint John NB Canada. Department of Biomedical Engineering The University of Melbourne Melbourne VIC Australia. Vagelos Molecular Life Sciences Program University of Pennsylvania Philadelphia PA USA. Doctoral Program in Neurobiology and Behavior Columbia University New York NY USA. Department of Genetics and Genomic Sciences Icahn School of Medicine at Mount Sinai New York NY USA. Department of Engineering University of Cambridge Cambridge Cambridgeshire UK. Department of Geography Liverpool John Moores University Liverpool UK. Department of Biology Stanford University Stanford CA USA. Department of Psychology University of Nicosia Nicosia Cyprus. Department of Global Ecology Carnegie Institution for Science Stanford CA USA. Research and Support Division Stellenbosch University Cape Town South Africa.

We gave young scientists this prompt:Describe one change to scientific policy or culture that would substantially decrease incidents of scientific misconduct or other unethical behavior.

关键词： behavior. prompt culture

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Comparison of the energy demand with the envelope limitations of the performance normative of Brazil and Spain

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AIP Conference Proceedings 2023年第1期2928卷

作者： Letiane Benincá Claudia Glitzenhirn Ana Carolina Passuello Eva Crespo Sánchez José María González Barroso Doctoral degree in Architectural Building Construction and Urbanism Architecture Technology Department Universitat Politècnica de Catalunya Av. Diagonal 649 08028 Barcelona Spain Postgraduate Program in Civil Engineering: Construction and Infrastructure Federal University of Rio Grande do Sul Av. Osvaldo Aranha 99 90035-190 Porto Alegre Rio Grande do Sul Brazil Architecture and Urbanism Federal University of Rio Grande do Sul Rua Sarmento Leite 320 99050-170 Porto Alegre Rio Grande do Sul Brazil

Buildings consume 42.6% of the electricity generated in Brazil, and the residential sector is responsible for 21,4% of that amount, in other words, almost a quarter of the generated electricity. Add to this fact, the housing deficit was almost 6 million in 2019 in the country. The purpose of this article is to analyze the results of the heating and cooling demand of a social residential building designed in an H shape, in Passo Fundo, in southern Brazil, from the perspective of the thermal transmittance limitation of the Brazilian normative (NBR 15575) and the Spanish Technical Code (CTE). The main objective is to verify and analyze the existing differences and potentials in the comparison between the regulations, evaluating the thermal envelope of a typical social housing building. The method used to obtain results was a computer simulation, using EnergyPlus software as an energy calculation engine and Sketchup 2017 for the modeling, with the Euclid plugin, which directly sends data to the energy simulation program. The building was simulated with climate data from the city of Passo Fundo, belonging to the Brazilian Bioclimatic Zone 2 (BZ2), and was compared to the transmittance level required for the D1 climate of Spain, as required by the CTE. Finally, it is possible to evidence that there is a decrease in the building’s energy demand as thermal insulation is incorporated into the walls and roof, to reach the strictest standard requirement levels. This article intends to show the potential for improvement in Brazilian regulations and the path to be followed concerning energy improvement in buildings.

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