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15th International Docomomo Conference - Metamorphosis: The Continuity of Change, IDC 2018

作者： Cabral, Cláudia Costa Architecture Graduate Program Faculty of Architecture Federal University of Rio Grande do Sul - UFRGS Porto Alegre Brazil

ISBN: (纸本)9789899964549

An ever-growing body of scholarship on suburbia has largely focused on the adverse effects of suburbanization. However, suburbia was also a fruitful experimental field for modern architecture. Lina Bo Bardi built her masterful Glass House (1951) in the São Paulo's suburb of Morumbi, as well as the Valeria Cirell House (1958). A few years later, Bo Bardi had the opportunity to design a suburb. In 1965, she developed a proposal for the Itamambuca Complex, a new urbanization located in Ubatuba, a resort town on the north coast of the state of Sao Paulo, in Brazil. The paper wishes to shed light on how Bo Bardi explored serial repetition and homogeneity, suburbia's most defining (and blamed) features, allied to primitive figuration, in the design of the Itamambuca complex. © Proceedings of the 15th International Docomomo Conference - Metamorphosis: The Continuity of Change, IDC 2018. All rights reserved.

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Sub-Meter Tree Height Mapping of California using Aerial Images and LiDAR-Informed U-Net Model

arXiv

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arXiv 2023年

作者： Wagner, Fabien H. Roberts, Sophia Ritz, Alison L. Carter, Griffin Dalagnol, Ricardo Favrichon, Samuel Hirye, Mayumi C.M. Brandt, Martin Ciais, Philipe Saatchi, Sassan Institute of Environment and Sustainability University of California Los AngelesCA United States Jet Propulsion Laboratory California Institute of Technology 4800 Oak Grove PasadenaCA91109 United States CTrees PasadenaCA91105 United States Virginia Polytechnic Institute State University Interdisciplinary Graduate Education Program in Remote Sensing Blacksburg United States Quapá Lab Faculty of Architecture and Urbanism University of São Paulo SP São Paulo05508080 Brazil Department of Geosciences and Natural Resource Management University of Copenhagen Copenhagen1350 Denmark Laboratoire des Sciences du Climat et de l’Environnement CEA-CNRS-UVSQ CE Orme des Merisiers Gif sur Yvette91190 France

Tree canopy height is one of the most important indicators of forest biomass, productivity, and species diversity, but it is challenging to measure accurately from the ground and from space. Here, we used a U-Net model adapted for regression to map the canopy height of all trees in the state of California with very high-resolution aerial imagery (60 cm) from the USDA-NAIP program. The U-Net model was trained using canopy height models computed from aerial LiDAR data as a reference, along with corresponding RGB-NIR NAIP images collected in 2020. We evaluated the performance of the deep-learning model using 42 independent 1 km2 sites across various forest types and landscape variations in California. Our predictions of tree heights exhibited a mean error of 2.9 m and showed relatively low systematic bias across the entire range of tree heights present in California. In 2020, trees taller than 5 m covered ∼ 19.3% of California. Our model successfully estimated canopy heights up to 50 m without saturation, outperforming existing canopy height products from global models. The approach we used allowed for the reconstruction of the three-dimensional structure of individual trees as observed from nadir-looking optical airborne imagery, suggesting a relatively robust estimation and mapping capability, even in the presence of image distortion. These findings demonstrate the potential of large-scale mapping and monitoring of tree height, as well as potential biomass estimation, using NAIP *** Codes 92-08 © 2023, CC BY.

关键词： Antennas

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The Prospect of Geotourism in the Cycloop Mountains Conservation Area Papua

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IOP Conference Series: Earth and Environmental Science 2022年第1期950卷

作者： P Setiadji B Sulistyantara B Pramudya Suwardi Student of Natural Resources and Environmental Study Program Graduate School of IPB Lecturer of Department of Landscape Architecture Faculty of Agriculture IPB Lecturer of Department of Mechanical and Biosystem Engineering Fateta IPB Lecturer of Department of Soil Science and Land Resources Faculty of Agriculture IPB

The Cycloop mountains in Papua are a nature reserve conservation area that has diverse geology, biology and culture. This paper discusses the prospects of geotourism in Cycloop mountains based on a method of analyzing the community acceptability and tourists preferences, likewise the geosite attraction and geotourism sustainability. The results of analysis indicates that a) village communities in surrounding conservation area accept and wish to get involved in natural activities; b) local tourists are very dominant and motivated on outdoor recreation in groups; c) identified geosites has classified as from Quite Interesting to Interesting based on the index of attractiveness; and d) geotourism activity in the mountains Cycloop is categorized Quite Sustainable reviewed from the environment, society, economy and governance dimension. The exploration and the geological conservation to be the reliable activities in organizing the geotourism. Geotourism is likely to be applied to the conservation area as a form of implementation of the sustainable tourism concept.

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MAPPING TROPICAL FOREST COVER AND DEFORESTATION WITH PLANET NICFI SATELLITE IMAGES AND DEEP LEARNING IN MATO GROSSO STATE (BRAZIL) FROM 2015 TO 2021

arXiv

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arXiv 2022年

作者： Wagner, Fabien H. Dalagnol, Ricardo Silva-Junior, Celso H.L. Carter, Griffin Ritz, Alison L. Hirye, Mayumi C.M. Ometto, Jean P.H.B. Saatchi, Sassan Institute of the Environment and Sustainability University of California Los AngelesCA90095 United States NASA-Jet Propulsion Laboratory California Institute of Technology PasadenaCA91109 United States *** Pasadena United States Virginia Polytechnic Institute State University Interdisciplinary Graduate Education Program in Remote Sensing BlacksburgVA24061 United States Quapá Lab Faculty of Architecture and Urbanism University of São Paulo—USP SP São Paulo Brazil Earth Observation and Geoinformatics Division National Institute for Space Research INPE SP São José dos Campos Brazil

Monitoring changes in tree cover for rapid assessment of deforestation is considered the critical component of any climate mitigation policy for reducing carbon. Here, we map tropical tree cover and deforestation between 2015 and 2022 using 5 m spatial resolution Planet NICFI satellite images over the state of Mato Grosso (MT) in Brazil and a U-net deep learning model. The tree cover for the state was 556510.8 km2 in 2015 (58.1 % of the MT State) and was reduced to 141598.5 km2 (14.8 % of total area) at the end of 2021. After reaching a minimum deforested area in December 2016 with 6632.05 km2, the bi-annual deforestation area only showed a slight increase between December 2016 and December 2019. A year after, the areas of deforestation almost doubled from 9944.5 km2 in December 2019 to 19817.8 km2 in December 2021. The high-resolution data product showed relatively consistent agreement with the official deforestation map from Brazil (67.2%) but deviated significantly from year of forest cover loss estimates from the Global Forest change (GFC) product, mainly due to large area of fire degradation observed in the GFC data. High-resolution imagery from Planet NICFI associated with deep learning technics can significantly improve mapping deforestation extent in tropics. © 2022, CC BY.

关键词： Land use

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Free vibration of orthotropic Levy-type solution plates by using SEM 7

Free vibration of orthotropic Levy-type solution plates by u...

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7th International Conference on Euro Asia Civil Engineering Forum, EACEF 2019

作者： Kiryu, S. Alisjahbana, S.W. Alisjahbana, I. Han, A.L. Gan, B.S. Department of Architecture Graduate School of Engineering Nihon University Koriyama Japan Faculty of Engineering and Informatics Bakrie University Jakarta Indonesia Department of Civil and Environmental Engineering Master Program Student Stanford University CA United States Civil Engineering Department Faculty of Engineering Universitas Diponegoro Semarang Indonesia Department of Architecture College of Engineering Nihon University Koriyama Japan

Orthotropic Levy-type solution plates considering shear deformation were solved by using the Spectral Element Method (SEM). In SEM, the exact solution of structural dynamic related problems can be solved by using the frequency-dependent shape functions. The solutions of SEM are accurate in decreasing the amount of Degree Of Freedoms (DOF) to discard the cost and computational disadvantages in the Finite Element Method (FEM). This study investigates the free vibration problems of orthotropic Levy-type solution plates solutions based on the two variable Refined Plate Theory (RPT). SEM for orthotropic Levy-type solution plates in the frequency domain was formulated to solve free vibration problems. The differential governing equations of the orthotropic plate element in SEM are formulated into the form of transcendental stiffness matrices. The boundary conditions of the spectral element model consist of four edge-type DOFs at each side of the orthotropic Levy-type solution plates. The natural frequencies of the plate are calculated by means of the Wittrick-Williams procedure. The numerical investigations are presented to show the accuracy, efficiency, and effectiveness of SEM without any discretization scheme. © Published under licence by IOP Publishing Ltd.

关键词： Stiffness matrix

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Finite-difference diffusion-equation modeling of reverberation chambers in time-domain

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The Journal of the Acoustical Society of America 2022年第4_SUPPLEMENT期152卷 A252-A252页

作者： Jiahua Zhang Juan Navarro Ning Xiang Mélanie Nolan School of Architecture Rensselaer Polytechnic Inst. 110 8th St. Graduate Program in Architectural Acoust. Troy NY 12180 zhangj45@rpi.edu Polytechnic Sci. Dept. San Antonio’s Catholic Univ. Murcia Spain School of Architecture Rensselaer Polytechnic Inst. Troy NY

Conventional chamber-based methods of random incidence absorbing coefficients overlook the non-diffused sound field in the room acoustics, which decreases accuracy and may even lead to conflicting results. This work applies the diffusion equation model to room-acoustic simulations of standardized reverberation chambers. The simulations can more efficiently capture the chamber's non-diffuse sound field and energy flows than wave-based simulation models. The diffusion equation represents the governing equation of reverberant sound energy densities within the reverberation chamber which is solved using the finite-difference time-domain method. Its computational efficiency of diffusion equation-based modeling lies in a highly sparse domain meshing condition dictated by the mean-free path length rather than wavelengths and still derives a wideband simulation result. This work also dedicates the effort to reexamine the meshing condition, particularly for standardized finite sizes of sound absorbers for measurements of random incidence absorption coefficients. By comparing the outcomes of simulations with measurement data, an a posteriori absorption coefficient is inversely estimated involving Bayesian parameter estimation.

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Urban Rules and Morphology Analysis as Support to Solar Performance in Passo Fundo/RS, Brazil

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IOP Conference Series: Earth and Environmental Science 2020年第1期503卷

作者： F Moscarelli G Tibério Cardoso Stricto Sensu Graduate Program in Architecture and Urbanism UniRitter-Laureate International Universities Porto Alegre/RS Brazil Stricto Sensu Graduate Program in Architecture and Urbanism Passo Fundo/RS Brazil.

The expansion and densification of cities should be planned to ensure minimum health conditions for buildings. In this sense, this study is interested in the right to solar access for buildings using the analysis of solar envelope to propose urban forms that guarantee this right. The study is in the exploratory phase, and it is applied to the city of Passo Fundo, Brazil. The study started from an analysis of the pre-existing morphological structure, and the solar envelope was generated using the Ladybug tool plugins for Grasshopper and Diva applications in Rhinoceros software. The results showed that the pre-existing urban form has low solar performance, evidencing the need to review construction rules according to the pattern and positioning of lots. Thus, it is expected to be counterbalanced by the revision of urban rules, proposing subsidies for the reformulation and adequacy, or creation of new legislation.

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Reduction of greenhouse gas emissions of Azolla Pinnata inclusion in backyard chicken production

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Nature Environment and Pollution Technology 2020年第5期19卷 1861-1869页

作者： Espino, M.T.M. Bellotindos, L.M. Engineering Graduate Program School of Engineering University of San Carlos Talamban Campus Cebu City6000 Philippines Department of Industrial Engineering School of Engineering and Architecture Ateneo de Davao University Davao City8000 Philippines School of Engineering University of San Carlos Talamban Campus Cebu City6000 Philippines

Backyard chicken production is an integral part among rural families in the tropics like the Philippines. However, it has been declining as it continues to suffer low productivity with its small-scale operations. Among its production inputs, feeds remain to be the top cost driver, as well as the top contributor to greenhouse gas (GHG) emissions that result in global warming potential (GWP). In a prior experiment, 50% inclusion of Azolla Pinna was recommended in feed ration due to its favourable and comparable growth performance of Dominant DZ backyard chickens. Hence, this study further evaluated the inclusion in terms of environmental performance. The 50% inclusion resulted in reductions of CO2 by 35%, N2O by 22.32%, and CH4 by 4.74%. The gross effect of this reduction of conventional feeds is a climate change mitigation equivalent 28.47% of GWP kg CO2 -eq./1,000 birds. The potential impacts indicate that Azolla Pinnata can be a cost-effective and sustainable feedstuff in backyard chicken rearing system especially that it requires simple propagation method. The environmental impacts and savings can encourage more livelihood activities in rural. © 2020 Technoscience Publications. All rights reserved.

关键词： Greenhouse gases

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ZETA: a library for Zonotope-based EsTimation and fAult diagnosis of discrete-time systems

arXiv

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arXiv 2025年

作者： Rego, Brenner S. Scott, Joseph K. Raimondo, Davide M. Terra, Marco H. Raffo, Guilherme V. Department of Electrical and Computer Engineering University of São Paulo SP São Carlos13566-590 Brazil Department of Chemical and Biomolecular Engineering Georgia Institute of Technology 311 Ferst Dr. AtlantaGA30318 United States Department of Engineering and Architecture University of Trieste Trieste34127 Italy Department of Electronics Engineering Graduate Program in Electrical Engineering Federal University of Minas Gerais MG Belo Horizonte31270-901 Brazil

This paper introduces ZETA, a new MATLAB library for Zonotope-based EsTimation and fAult diagnosis of discrete-time systems. It features user-friendly implementations of set representations based on zonotopes, namely zonotopes, constrained zonotopes, and line zonotopes, in addition to a basic implementation of interval arithmetic. This library has capabilities starting from the basic set operations with these sets, including propagations through nonlinear functions using various approximation methods. The features of ZETA allow for reachability analysis and state estimation of discrete-time linear, nonlinear, and descriptor systems, in addition to active fault diagnosis of linear systems. Efficient order reduction methods are also implemented for the respective set representations. Some examples are presented in order to illustrate the functionalities of the new library. © 2025, CC BY.

关键词： Digital arithmetic

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Performance assessment design based on problem based learning for vocational high school students skills competency geomatics engineering

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AIP Conference Proceedings 2022年第1期2489卷

作者： Reni Nuril Komari Sudjani Sudjani Johar Maknun 1Technology and Vocational Education Post Graduate Program Universitas Pendidikan Indonesia Bandung Indonesia 2Department of Civil Engineering Education Universitas Pendidikan Indonesia Bandung Indonesia 3Department of Architecture Engineering Education Universitas Pendidikan Indonesia Bandung Indonesia

The study of performance assessment based on problem based learning not only done in the field of technical vocational education but also in the health education, economic education, environmental education. The development of performance assessment based on problem based learning is still rare in vocational schools. Using 2013 curriculum which is required to use 21st century learning strategies, one of which is Problem Based Learning (PBL). Performance assessment is said by its advocators to be more in line with instruction than multiple-choice tests. Performance assessment is seen as having a better possibility of measuring more complex skills and communication. This article aims to design based performance assessment based on problem based learning using design based research method. The validation used in this article is expert judgement. The result of the study revealed that the cronbach alpha valu for the entire measurment scale was 0.97. The cronbach alpha value is between 0.8 to 1.00. Therefore , design performance assessment based on problem based learning has a good reability. This article aims to find out how to design performance assessment based on problem based learning for students geomatics engineering. This article provide an overview of the development of design performance assessment based on problem based learning for vocational students.

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