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Evaluation of computer vision techniques for automated hardhat detection in indoor construction safety

Bahaa Eddine MNEYMNEH, Mohamad ABBAS, Hiam KHOURY

Frontiers of Engineering Management 2018, Volume 5, Issue 2,   Pages 227-239 doi: 10.15302/J-FEM-2018071

Abstract: Hence, employers must ensure their workers wear personal protective equipment (PPE), in particular hardhats

Keywords： construction     safety     personal protective equipment     hardhat     computer vision    

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Fully automatic container terminals of Shanghai Yangshan Port phase IV

Jack Xunjie LUO

Frontiers of Engineering Management 2019, Volume 6, Issue 3,   Pages 457-462 doi: 10.1007/s42524-019-0053-0

Abstract:

Engineering Owner: Construction Headquarters of Yangshan Deep-water Port Phase IV Project of Shanghai International Shipping Center

Keywords： Yangshan Port     automated equipment     intelligent system     container terminals     port engineering    

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Automated synthesis of steady-state continuous processes using reinforcement learning

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2,   Pages 288-302 doi: 10.1007/s11705-021-2055-9

Abstract: Automated flowsheet synthesis is an important field in computer-aided process engineering.The present work demonstrates how reinforcement learning can be used for automated flowsheet synthesis

Keywords： automated process synthesis     flowsheet synthesis     artificial intelligence     machine learning     reinforcement    

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hardening performance of three-dimensionally-printed geopolymer based on lunar regolith simulant for automated

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0003-0

Abstract: Using an in situ lunar regolith as a construction material in combination with 3D printing not only reduces the weight of materials carried from the Earth but also improves the automation of lunar infrastructure construction. This study aims to improve the printability of a geopolymer based on a BH-1 lunar regolith simulant, including the extrudability, open time, and buildability, by controlling the temperature and adding admixtures. Rheological parameters were used to represent printability with different water-to-binder ratios, printing temperatures, and contents of additives. The mechanical properties of the hardening geopolymer with different filling paths and loading directions were tested. The results show that heating the printed filaments with a water-to-binder ratio of 0.32 at 80 °C can adjust the printability without adding any additive, which can reduce the construction cost of lunar infrastructure. The printability of the BH-1 geopolymer can also be improved by adding 0.3% Attagel-50 and 0.5% polypropylene fiber by mass at a temperature of 20 °C to cope with the changeable environmental conditions on the Moon. After curing under a simulated lunar environment, the 72-h flexural and compressive strengths of the geopolymer specimens reach 4.1 and 48.1 MPa, respectively, which are promising considering that the acceleration of gravity on the Moon is 1/6 of that on the Earth.

Keywords： geopolymer     lunar regolith simulant     3D printing     rheology     printability    

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Automated classification of civil structure defects based on convolutional neural network

Pierclaudio SAVINO, Francesco TONDOLO

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 305-317 doi: 10.1007/s11709-021-0725-9

Abstract: Today, the most commonly used civil infrastructure inspection method is based on a visual assessment conducted by certified inspectors following prescribed protocols. However, the increase in aggressive environmental and load conditions, coupled with the achievement of many structures of the life-cycle end, has highlighted the need to automate damage identification and satisfy the number of structures that need to be inspected. To overcome this challenge, this paper presents a method for automating concrete damage classification using a deep convolutional neural network. The convolutional neural network was designed after an experimental investigation of a wide number of pretrained networks, applying the transfer-learning technique. Training and validation were conducted using a database built with 1352 images balanced between “undamaged”, “cracked”, and “delaminated” concrete surfaces. To increase the network robustness compared to images in real-world situations, different image configurations have been collected from the Internet and on-field bridge inspections. The GoogLeNet model, with the highest validation accuracy of approximately 94%, was selected as the most suitable network for concrete damage classification. The results confirm that the proposed model can correctly classify images from real concrete surfaces of bridges, tunnels, and pavement, resulting in an effective alternative to the current visual inspection techniques.

Keywords： concrete structure     infrastructures     visual inspection     convolutional neural network     artificial intelligence    

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Evaluation of automated in-line precision dairy farming technology implementation in three dairy farms

Maria CARIA, Giuseppe TODDE, Antonio PAZZONA

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 2,   Pages 181-187 doi: 10.15302/J-FASE-2019252

Abstract: The automated in-parlour milk analysis and separation is mainly useful to produce low or high quality

Keywords： cheese yield     infrared analysis     milk quality     real-time measurement     sensor    

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Determination of selected semi-volatile organic compounds in water using automated online solid-phase

Yongtao LI, Christina L. MCCARTY, Ed J. GEORGE

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 417-425 doi: 10.1007/s11783-011-0310-x

Abstract: The method used an automated online solid-phase extraction technique coupled with programmed-temperatureThe water samples were extracted by using a fully automated mobile rack system based on x-y-z roboticAs a result, this new automated method can be used as an effective approach for screening and/or compliance

Keywords： automated solid-phase extraction     programmed-temperature vaporization     large-volume injection     gas chromatography    

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Web-based construction equipment fleet management system: cost-effective global and local allocation

Hakob AVETISYAN, Miroslaw SKIBNIEWSKI

Frontiers of Engineering Management 2017, Volume 4, Issue 1,   Pages 76-83 doi: 10.15302/J-FEM-2017012

Abstract: last two decades, construction contractors have been gradually making more investments in construction equipmentfleets in well-sustained workable conditions and having a high accessibility of the necessary equipmentIdentifying equipment pieces geographically is a relatively easy task.The actual allocation of equipment should be both economically feasible and technologically preferableThe model benefits those responsible for informed decision-making for construction equipment selection

Keywords： Construction equipment     Equipment assignment optimization     Web-based asset management    

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Study on evaluation method of weapon equipment readiness

Yu Xiang,Du Gang and He Qiwei

Strategic Study of CAE 2015, Volume 17, Issue 5,   Pages 76-82

Abstract:

Weapon equipment readiness evaluation is important for the meticulous and scientific usage managementand maintenance support of weapon equipment.Therefore， an improved evaluation method for weapon equipment readiness based on the technical statusverified， and some countermeasures and suggestions to further improve the method and mechanism for equipment

Keywords： equipment readiness；technical status；maintenance support of equipment；countermeasures    

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Requirement Analysis of High-End Manufacturing Equipment with a Focus on the High-End Equipment Manufacturing

Zhang Jun and Lu Bingheng

Strategic Study of CAE 2017, Volume 19, Issue 3,   Pages 136-141 doi: 10.15302/J-SSCAE-2017.03.019

Abstract:

The continual development of high-end manufacturing equipment is essentialfor the development of the high-end equipment manufacturing industry.By examining the development trends of aeronautic equipment, aerospace equipment, rail transportationequipment, ocean engineering equipment and intelligent manufacturing equipment during the 13th Five-YearPlan, these authors analyze the new demands and future priorities of high-end manufacturing equipment

Keywords： high-end equipment manufacturing industry     high-end manufacturing equipment     machine tool     basic manufacturingequipment    

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Analyzing sustainability of construction equipment in the state of California

Hakob AVETISYAN, Miroslaw SKIBNIEWSKI, Mohammad MOZAFFARPOUR

Frontiers of Engineering Management 2017, Volume 4, Issue 2,   Pages 138-145 doi: 10.15302/J-FEM-2017013

Abstract: Construction equipment encompasses highly polluting machines adversely affecting the environment.Management tools are necessary for sustainability assessment of construction equipment fleets to allowfor a metrics that will allow companies to accurately assess the sustainability of their construction equipmentThis paper presents an evaluation of construction equipment fleets and data analysis.The metrics for construction equipment evaluation as well as the tool for sustainable decision-making

Keywords： Construction equipment     greenhouse gas emissions     sustainability index     sustainable construction    

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Development Strategy of China’s Offshore Oil and Gas Equipment

Cheng Bing , Fu Qiang , Li Qingping , Liu Yibin , Zhu Lin , Wu Ying

Strategic Study of CAE 2023, Volume 25, Issue 3,   Pages 13-21 doi: 10.15302/J-SSCAE-2023.03.002

Abstract:

Offshore oil and gas equipment is crucial for developing offshore oilIn recent years, China’s offshore oil and gas equipment industry has made a series of breakthroughsdevelopment status of offshore oil and gas exploration, drilling, construction, and production equipmentthe advanced international level, and proposes the key development directions for each type of equipmentbreakthroughs of core equipment, (4) accelerating the domestication of underwater production equipment

Keywords： offshore oil and gas     exploration equipment     drilling equipment     construction equipment     production equipment    

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Proposing a “lean and green” framework for equipment cost analysis in construction

Ming LU, Nicolas DIAZ, Monjurul HASAN

Frontiers of Engineering Management 2019, Volume 6, Issue 3,   Pages 384-394 doi: 10.1007/s42524-019-0033-4

Abstract: One limitation of previous productivity-driven research on equipment selection and operation simulationconstruction industry to evaluate greenhouse gas emission as a cost factor in construction planning, equipmentIn this context, this paper formalizes an integrative framework for equipment cost analysis based onlean construction and green construction, aimed to guide the selection of appropriate construction equipmenthourly rates and assessing greenness and sustainability for alternative equipment options.

Keywords： green construction     lean construction     equipment     simulation     earthwork construction     sustainability     productivity    

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Digital monitoring and health diagnosis for mechanical equipment operation safety based on fiber Bragg

Zude ZHOU, Desheng JIANG, Quan LIU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 5-14 doi: 10.1007/s11465-009-0011-3

Abstract: fiber Bragg grating (FBG) based on a fiber optic grating sensor developed to be embedded on mechanical equipmentinformation by an FBGS can be used for the optimization of maintenance schedules and refinement of mechanical equipmentcontribute to modern measurements in science and technology, mechanical engineering, and large mechanical equipment

Keywords： fiber Bragg grating sensor (FBGS)     mechanical equipment operation safety     embedded technology     high-speed    

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Artificial lift equipment repairing techniques in Daqing Oilfield

He LIU, Guochen SHI, Cui WANG, Peijing SHI, Yi XU,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1,   Pages 111-117 doi: 10.1007/s11465-009-0081-2

Abstract: The annual investment is 1.07 billion RMB in the maintenance of artificial lift equipment, which is aAfter years of study, a series of repairing techniques for artificial lift equipment have been createdremarkable benefits and efficiency as well.This paper first presents the background of artificial lift equipment

Keywords： artificial lift equipment     repairing technique     remanufacturing technique     Daqing Oilfield    

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Title Author Date Type Operation

Evaluation of computer vision techniques for automated hardhat detection in indoor construction safety

Bahaa Eddine MNEYMNEH, Mohamad ABBAS, Hiam KHOURY

Journal Article

Fully automatic container terminals of Shanghai Yangshan Port phase IV

Jack Xunjie LUO

Journal Article

Automated synthesis of steady-state continuous processes using reinforcement learning

Journal Article

hardening performance of three-dimensionally-printed geopolymer based on lunar regolith simulant for automated

Journal Article

Automated classification of civil structure defects based on convolutional neural network

Pierclaudio SAVINO, Francesco TONDOLO

Journal Article

Evaluation of automated in-line precision dairy farming technology implementation in three dairy farms

Maria CARIA, Giuseppe TODDE, Antonio PAZZONA

Journal Article

Determination of selected semi-volatile organic compounds in water using automated online solid-phase

Yongtao LI, Christina L. MCCARTY, Ed J. GEORGE

Journal Article

Web-based construction equipment fleet management system: cost-effective global and local allocation

Hakob AVETISYAN, Miroslaw SKIBNIEWSKI

Journal Article

Study on evaluation method of weapon equipment readiness

Yu Xiang,Du Gang and He Qiwei

Journal Article

Requirement Analysis of High-End Manufacturing Equipment with a Focus on the High-End Equipment Manufacturing

Zhang Jun and Lu Bingheng

Journal Article

Analyzing sustainability of construction equipment in the state of California

Hakob AVETISYAN, Miroslaw SKIBNIEWSKI, Mohammad MOZAFFARPOUR

Journal Article

Development Strategy of China’s Offshore Oil and Gas Equipment

Cheng Bing , Fu Qiang , Li Qingping , Liu Yibin , Zhu Lin , Wu Ying

Journal Article

Proposing a “lean and green” framework for equipment cost analysis in construction

Ming LU, Nicolas DIAZ, Monjurul HASAN

Journal Article

Digital monitoring and health diagnosis for mechanical equipment operation safety based on fiber Bragg

Zude ZHOU, Desheng JIANG, Quan LIU

Journal Article

Artificial lift equipment repairing techniques in Daqing Oilfield

He LIU, Guochen SHI, Cui WANG, Peijing SHI, Yi XU,

Journal Article