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Automated simulation for household road traffic noise exposure: Application and field evaluation in a high-density city

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Computers, Environment and Urban systems 2023年第1期104卷

作者： Guo, Mengdi Ni, Michael Y. Shyu, Rong-Juin Ji, John S. Huang, Jianxiang Department of Architecture School of Architecture Tianjin University Tianjin China Department of Urban Planning and Design the University of Hong Kong Hong Kong Special Administrative Region China The University of Hong Kong Shenzhen Institute of Research and Innovation 5/F Key Laboratory Platform Building Shenzhen Virtual University Park No.6 Yuexing 2nd Rd Nanshan Shenzhen518057 China School of Public Health LKS Faculty of Medicine The University of Hong Kong Hong Kong Special Administrative Region China The State Key Laboratory of Brain and Cognitive Sciences The University of Hong Kong Hong Kong Special Administrative Region China Urban Systems Institute the University of Hong Kong Hong Kong Special Administrative Region Hong Kong Department of System Engineering and Naval Architecture National Taiwan Ocean University Keelung Taiwan Vanke School of Public Health Tsinghua University Beijing China Sustainable High Density Cities Lab HKUrban Lab Faculty of Architecture the University of Hong Kong Hong Kong Special Administrative Region Hong Kong

Road traffic noise is a major nuisance and a risk factor of poor health for urban dwellers. A household's exposure to road traffic noise, especially in a high-density city, can be easily modified by the surrounding built environment, i.e., roads, traffic, buildings, and the topography. This leads to high variation in noise exposure between neighboring households. Existing simulation-based studies were limited in accounting for the variation of noise exposure at the household level, which restricted their applications in public health research involving large numbers of participants. This paper describes a novel simulation-based workflow to assess household traffic noise exposure, which consists of 1) a source model to assess road traffic noise levels, 2) a propagation model to simulate noise propagation in complex three-dimensional urban areas, 3) an automation algorithm to process large quantity of simulation runs and data. The workflow has been evaluated using field studies conducted in Sham Shui Po District, Hong Kong, with reasonably good agreements between simulated and measured data. It was then used to assess road traffic noise exposure for a sample of 6158 households enrolled in the FAMILY Cohort, representing Hong Kong's population dwelling in the dense urban areas. Results showed that 83% of sampled households have been exposed to excessive road traffic noise above the World Health Organization (WHO) standard, or 30% above the local standard. The estimated burden of disease is over 45,000 disability-adjusted life-years (DALYs) from both high annoyance and sleep disturbance for households in Hong Kong. The study has contributed to the methodologies and datasets in evaluating noise exposure in high-density cities, which can further support urban noise mitigation policies and planning and population-based health studies in the next steps. © 2023 Elsevier Ltd

关键词： Three dimensional computer graphics

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Generative Deep Learning for Visual Animation in Landscapes design

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Scientific Programming 2023年第1期2023卷

作者： Ardhianto, Peter Santosa, Yonathan Purbo Moniaga, Christian Utami, Maya Putri Dewi, Christine Christanto, Henoch Juli Chen, Abbott Po Shun Department of Visual Communication Design Soegijapranata Catholic University Semarang50234 Indonesia Department of Informatics Engineering Soegijapranata Catholic University Semarang50234 Indonesia Department of Architecture Soegijapranata Catholic University Semarang50234 Indonesia Department of Information Technology Satya Wacana Christian University Salatiga50711 Indonesia Department of Information System Atma Jaya Catholic University of Indonesia Jakarta Indonesia Department of Marketing and Logistics Management Chaoyang University of Technology 168 Jifeng E Road Taichung413310 Taiwan

The biggest challenge for architecture designers is the time required for the design process. Especially landscape architects who have different work limits from architects in general. In contrast to architects in general, who are assisted in producing design plans by building standards, building requirements, and space programs that adapt to the type of project being undertaken. At the same time, some design jobs demand high-productivity landscape animation presentation in a short time. The long process involved in designing animation often makes it difficult for designers to produce optimal work. This study proposes generative zooming animation with artificial intelligence support to shorten the designer’s work process and energy optimization. Deep learning with Vector Quantized Generative Adversarial Network and Contrastive Language-Image Pre-Training was used to generate alternative landscape designs from text prompt-based and compile them in animation. Our experiment shows that one frame can be generated roughly in 3.636 ± 0.089 s, which is significantly faster than the conventional method to create animation. Moreover, our method is able to achieve a good-quality image, which scored 3.2904 using inception score evaluation. The effectiveness of deep learning in visual landscape and animation creation can help designers speed up the design process. Furthermore, working time efficiency without compromising design quality will increase designer productivity and economic growth. Copyright © 2023 Peter Ardhianto et al.

关键词： Animation

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Optimizing coagulant dosage using deep learning models with large-scale data

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Chemosphere 2024年 350卷 140989页

作者： Kim, Jiwoong Hua, Chuanbo Kim, Kyoungpil Lin, Subin Oh, Gunhak Park, Mi-Hyun Kang, Seoktae Department of Civil and Environmental Engineering Korea Advanced Institute of Science and Technology 291 Daehak-ro Yuseong-gu Daejeon34141 Korea Republic of 200 Sintanjin-ro Daedeok-gu Deajeon34350 Korea Republic of Department of Industrial and System Engineering Korea Advanced Institute of Science and Technology Korea Republic of Department of the Built Environment College of Design and Engineering National University of Singapore 4 Architecture Drive 117566 Singapore Department of Civil and Environmental Engineering Dongguk University 30 Pildong-ro 1-gil Jung-gu Seoul04620 Korea Republic of

Water treatment plants are facing challenges that necessitate transition to automated processes using advanced technologies. This study introduces a novel approach to optimize coagulant dosage in water treatment processes by employing a deep learning model. The study utilized minute-by-minute data monitored in real time over a span of five years, marking the first attempt in drinking water process modeling to leverage such a comprehensive dataset. The deep learning model integrates a one-dimensional convolutional neural network (Conv1D) and gated recurrent unit (GRU) to effectively extract features and model complex time-series data. Initially, the model predicted coagulant dosage and sedimentation basin turbidity, validated against a physicochemical model. Subsequently, the model optimized coagulant dosage in two ways: 1) maintaining sedimentation basin turbidity below the 1.0 NTU guideline, and 2) analyzing changes in sedimentation basin turbidity resulting from reduced coagulant dosage (5–20%). The findings of the study highlight the effectiveness of the deep learning model in optimizing coagulant dosage with substantial reductions in coagulant dosage (approximately 22% reduction and 21 million KRW/year). The results demonstrate the potential of deep learning models in enhancing the efficiency and cost-effectiveness of water treatment processes, ultimately facilitating process automation. © 2023

关键词： Turbidity

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Measurement of 3d Pavement Morphology Using Improved Binocular Reconstruction Under Structured Light Constraint Mechanism

SSRN

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SSRN 2024年

作者： Wang, Yuanyuan Zhang, Hengtong Shu, Haicheng Wang, Zhongren Xue, Jinshun Yang, Jianhua Hubei Key Laboratory of Power System Design and Test for Electrical Vehicle Hubei University of Arts and Science No.296 Longzhong Road Xiangyang441053 China School of Mechanical Engineering Hubei University of Arts and Science No.296 Longzhong Road Xiangyang441053 China Enterprise Technical Center Bridge Construction Group Co.Ltd Xiangyang Road Xiangyang441023 China School of Civil Engineering and Architecture Hubei University of Arts and Science No.296 Longzhong Road Xiangyang441053 China

For the special object of asphalt pavement, due to dark surface color, weak regional texture, and inconspicuous features points, traditional binocular vision is not ideal for measuring the three-dimensional (3D) morphology. To achieve accurate measurement of 3D pavement morphology, this paper introduced sine-encoded stripe structured light and explores a matching strategy that combines image spatial domain information with frequency domain phase information. The phase shift iterative matching algorithm under structured light constraint mechanism was proposed. A binocular reconstruction measurement system was subsequently constructed to evaluate the measurement accuracy of the proposed algorithm and the measurement effect in real scenarios. The results show that the constraint effect of structured light enhances the effective matching between pixels and improves the measurement accuracy. The maximum absolute deviation measured by the proposed algorithm is only 0.4 mm, which can meet the precision requirements of 3D pavement morphology measurement. © 2024, The Authors. All rights reserved.

关键词： Morphology

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Measurement of 3d Pavement Morphology Using Improved Binocular Reconstruction Under Structured Light Constraint Mechanism

SSRN

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SSRN 2024年

关键词： Morphology

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Acquisition of the enhanced Maritime Prepositioning Force, MPF(E), Ship

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NAVAL ENGINEERS JOURNAL 1999年第1期111卷 15-26页

作者： Mazumdar, T Sandison, J DuFlocq, R Thpan Mazurndar:is a Deputy Ship Design Manager from Naval Surface Warfare Center Carderock Division. He was the Design Manager for the Engineering and Design Phase ofthe Enhanced Maritime Prepositioning Fme Ship (MPF(E)). Cuwently Mt: M2.zumdar is Deputy Ship Design Manager in NAVSEA 030 for the LHD and LSD classes of ships. Mr. Mazumdar was awarded a BSE in Naval Architecture and Marine Engineering from the University of Michigan in 1981 and an MS in Computer Science fiom Virginia Tech in 1988. He also possesses an International ChiejEngineer License (Motot unlimited). Mr. Mancmdar has been an Associate Member of WAME since 1981. James C. Sandison:is a Senior Ship Design Manager (SDM) for surface ships in the Nawl Sea Systems Command (NAVSEA03D3C). He has a long tem practical background in design construction and testing of surface ships. Starting in NAVSEC as a diving and salvage systems engineer for the Bathyscaph TRIESTE he has been involved with most ofthe Nays Mine Warfare and Auxiliary ships from naval architect to the present Senior Ship Design Manager for the Strategic Sealift Program. Mr: Sandison entered the U.S. Navy in 1956 in the (diesel) Submarine Service. Afterward he “went to sea in sailing ships and completed an apprenticeship as a wooden shipbuildex. In 1971 he graduated from the University of Michigan with a BSE in Naval Architecture and Marine Engineering and was employed by NAVSEC. His latest additional duties have been as engineering coordinator on board the USS CONSTITUTION for her 200th anniversary sail. Mr. Sandison is a member of SNAME ASNE and the U.S. Naval Institute. Rick DuFlocq has over 24 years of combined project management mechanical system and general awangmmt design and design documentation experience the last 14 years urith Advance Marine Enterprises (AME). He has fmjmned this wurk on a wide variety of ships and auxiliary crafl including submarines primarily for the U.S. Navy and the Military Sealift Command (MSC). He has worked for both shiprards and marine eng

The paper will describe the streamlined acquisition process involved in the procurement, and conversion, of the first two of three Enhanced Maritime Prepositioning Force (MPF(E)) ships. This program was one of the first programs undertaken within the Government's new policy of Acquisition Reform, which resulted in the development of "performance based" requirements for these ships. This program is notable in that one prime contractor is responsible for the accomplishment of all phases, and that the contractors participating were not shipyards as is usually the fashion for Government ship acquisition programs. Also of note, was that after the conversion contracts were awarded, responsibility for the conduct of detail design, conversion, and operation and maintenance of the ship was transferred from the NAVSEA Sealift Program Office (PMS 385) to the Military Sealift Command (MSC). The first part of the paper will describe the basic mission of the MPF(E) ships, and a description of the origin of the program requirements. The second part of the paper will chronicle in detail the portions of the engineering design and specification development process, which will include descriptions of the unique digital data recording and tracking systems developed by the Government MPF(E) design Support Team to support the acquisition phases of the procurement. The third and final part of the paper will elaborate on the conversion contract awards and the transition of the program from PMS 385 to MSC.

关键词： Naval vessels

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A Study on the Effect of Environment Sound on Human Thermal Sensation

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IOP Conference Series: Materials Science and Engineering 2018年第1期401卷

作者： K Fukagawa Y Kurazumi A Aruninta J Ishii Y Yamato K Tobita E Kondo A Nyilas H Oishi Department of Architecture Faculty of Architecture and Civil engineering Kyushu Sangyo University Fukuoka Japan Department of Human Environment Design School of Life Studies Sugiyama Jogakuen University Nagoya Japan Department of Landscape Architecture Faculty of Architecture Chulalongkorn University Bangkok Thailand Department of Architecture Faculty of Science and Technology Meijo University Nagoya Japan Department of Architecture and Structural Engineering Kure National College of Technology Kure Japan College of Sustainable System Sciences Osaka Prefecture University Sakai Japan Department of Creative Engineering Ariake National College of Technology Omuta Japan JR East Design Corporation Tokyo Japan

In recent years, there have been several devastations caused by the global climate change. Global climate change is considered as relating to the global warming and is becoming a serious problem. Global warming is related to the increase of carbon dioxide. The increase of the carbon dioxide is caused by the energy consumption increase. In addition, air conditioning dominates the large ratio of the energy consumption. Furthermore, according to the huge earthquake happened on March 11, 2011 in Japan, the country's energy policy is facing a turning point, which is to establish less harmful and less energy based society than ever. For that reason, to decrease the energy consumption, how to reduce the energy consumption by the air-conditioning is an important issue. There have been several research relating to the topic. However, those researches did not study on the effect of the environment sound on the human thermal sensation. For that reason, the purpose of this research is to clarify the effect of environment sound on human thermal sensation. As the result of this study, the environment sounds, such as 'Rain' 'Stream' 'Water Bamboo' showed the effect to lower the human thermal sensation.

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ENGINEERING AESTHETICS IN WARSHIP design

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NAVAL ENGINEERS JOURNAL 1981年第5期93卷 61-64页

作者： KELL, W is a veteran of infrantry combat in Europe during World War II. He holds degrees in Naval Architecture Marine Engineering and Marine Transportation from Massachusetts Institute of Technology. He is a Registered Professional Engineer in Massachusetts and New Hampshire and a member of SNAME and ASNE. His Marine experience includes work for Gibbs & Cox Boot-Allen John J. McMullen General Dynamics Bethlehem Steel Co. CTD and John G. Alden. The work covered a broad spectrum of activities which included claims investigations ship surveys basic ship design combining both naval architecture and marine engineering preliminary and detailed design of marine steam dieselandgas turbine propulsion plants instrumentation of ships for trials and analysis of trial data. He has also been active in the naval architecture and marine engineering of yachts fishing vessels and work boats. He has also spent over ten years in the mechanical engineering of electronics systems in space probes aircraft and ruggedized ground-base equipment. He packaged the data acquisition system for Mariner B which made the first Venus Fly By. Mr. Kelt is currently engaged as a naval architect and marine engineer by RCA Corporation in the special studies group ship integration activity of the Naval Systems Department at Moorestown NJ where he conducts feasibility studies to establish the performance impact of combat system variations on candidate ships.

The case is made that the aesthetic considerations that make a warship appear to be an effective combatant do not conflict with the design engineering considerations that contribute to combat effectiveness. The features suggested by Roach and Meier [1, 2] for making a warship look warlike are shown to have been included in the configurations of two ships as a result primarily of engineering considerations, without stressing aesthetics.

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A Study on the Evaluation Tendency of Thermal Sensation in Tropical Region - Targeting short time residents -

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IOP Conference Series: Materials Science and Engineering 2018年第1期401卷

作者： K Fukagawa Y Kurazumi A Aruninta J Ishii Y Yamato K Tobita E Kondo A Nyilas H Oishi Department of Landscape Architecture Faculty of Architecture Chulalongkorn University Bangkok Thailand Department of Human Environment Design School of Life Studies Sugiyama Jogakuen University Nagoya Japan Department of Architecture Faculty of Science and Technology Meijo University Nagoya Japan Department of Architecture and Structural Engineering Kure National College of Technology Kure Japan College of Sustainable System Sciences Osaka Prefecture University Sakai Japan Department of Creative Engineering Ariake National College of Technology Omuta Japan JR East Design Corporation Tokyo Japan

Climate change is getting more and more serious issue in the world. This is known as caused by the increase of carbon dioxide. To stop the increase, many countries agreed to the Paris Agreement in 2015. When to discuss the climate change, temperature drop and increase are focused more often. The big change of the temperature, especially the rise of the temperature, causes the more usage of air conditioning system, and it also causes more energy consumption. In addition, the usage of the air conditioning system is affected by both indoor and outdoor thermal environment. The temperature setting of air conditioning system tends to be lower in the countries situated in tropical region than the countries in the other region. This happens because the thermal sensation of human is easily affected by the outdoor environment. For that reason, to grasp the tendency of thermal sensation in outdoor space is important. In addition, the tendency of short time residence is necessary to wipe out the influence of the thermal environment adjustment by long time living. For that reason, this research targeted the thermal evaluation tendency of short time residents in Bangkok and carried out subject experiments in outdoor spaces to develop landscape design method. As the result of analysis, a different tendency was grasped at one of the measuring points with open sky.

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USING VIRTUAL ENVIRONMENTS IN THE design OF SHIPS

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NAVAL ENGINEERS JOURNAL 1994年第3期106卷 91-106页

作者： JONS, OP RYAN, JC JONES, GW Otto P. Jons:received a Diplom Ing. in shipbuilding from the Technical University of Hanover W. Germany and an MS in naval architecture and marine engineering from MIT. He then joined Litton Ship Systems where he was responsible for the preliminary design of the DD-963 hull structure and then for ship system integration as manager LHA ship systems engineering department. From 1972 to 1974 he was the principal research scientist at Hydronautics. In 1974 as technical director he helped establish the Crystal City office of Designers and Planners. Mr. Jons was one of the co-founders of Advanced Marine Enterprises Inc. in 1976 where he serves as corporate vice president engineering. J. Christopher Ryan:earned his bachelors and masters degrees in naval architecture from Webb Institute and MIT respectively. He spent three years at the advanced marine technology division of Litton Industries working on the DD-963 class ship design and related computer aided design projects. He subsequently went to the Navy Department concentrating on early stage design of surface combatants for twelve years including work on the FFG-7 Sea Control Ship CSGN and CVV aircraft carrier projects. He then shifted focus and became the Technical Director for the Computer Supported Design Program in NavSea for five years. Mr. Ryan has served in several supervisory positions within the Ship Design Group in NavSea since that time. He is currently the director of the future ship concepts division. Gary W. Jones:graduated from the University of Tennessee in 1971 with a BS in mechanical engineering and followed up with graduate work at George Washington University and the University of Maryland. Mr. Jones was with the Naval Sea Systems Command from 1971 until 1988 where he was a naval architect in the submarine section of the hull form design division. In 1988 he was detailed to the Defense Advanced Research Projects Agency (DARPA) where he became the program manager for the advanced submarine technology program's hydrodynamic hydroac

A major contributor to the expense and length of time to design, build, and test new systems has been the need to build and test hardware prototypes to determine their effectiveness in meeting operational requirements. Recent and dramatic advances in computer simulation technologies hold forth the promise of revolutionizing design and acquisition strategies by providing the means to validate end users' requirements prior to hardware construction. By designing and operationally testing virtual prototypes in a virtual environment, these technologies will soon offer naval architects the ability to build and launch ships in computer-based cyberspace in lieu of the shipbuilder's ways. The authors of this paper provide the background for these developments, explore the significance and ramifications of these technologies to the current process of ship and system design, outline challenges lying ahead, and present their vision and recommendations for future development.

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