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Automation of the Determining Parameters Process Used to Assess the State of Hip Joint Degeneration Based on CT Imaging 8th

Automation of the Determining Parameters Process Used to Ass...

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8th International Scientific-Technical Conference (MANUFACTURING)

作者： Kotecki, Krzysztof Napierala, Anna Rychlik, Michal Poznan Univ Tech Poznan Poland

ISBN: (纸本)9783031564581;9783031564567

The purpose of the study was to determine the parameters of the hip joint, more specifically its acetabulum for assessing the state of hip degeneration based on CT imaging. The theoretical part includes the information needed to understand the topic regarding, among other things, the structure of the hip joint, its degeneration, CT imaging. The work consists of several stages. The first presents the preparation of input data. The next presents the process of exporting and processing the pelvic model based on CT scans and pelvic bone masks automatically segmented by the deep learning algorithm. The next stage presents the operation ofmanually determining the acetabular parameters needed for assessing joint degeneration in Rhinoceros 3D 7. This process was automated in the same program by creating macros, which are run using buttons located in a specially designed taskbar. The last stage presents the validation of the developed method, which, unfortunately, was not fully successful due to errors and a small amount of input data;the parameters of 5 pelvises were automatically determined, but failed to assess the degree of joint degeneration in them. Nevertheless, the developed method can be used to automatically, and therefore more quickly, determine the parameters of the hip joint acetabulum.

关键词： Hip joint parameters treatment CT imaging

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A CFD Simulation of Bubble Burst at Free Surface

A CFD Simulation of Bubble Burst at Free Surface

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Saudi International Conference on Nuclear Power engineering (SCOPE)

作者： Ouallal, Mohammed Shams, Afaque Siddiqui, Osman Univ Luxembourg Campus Kirchberg L-1359 Luxembourg Luxembourg King Fahd Univ Petr & Minerals KFUPM Mech Engn Dept Dhahran Saudi Arabia KFUPM Interdisciplinary Res Ctr Ind Nucl Energy IRC INE Dhahran Saudi Arabia

ISBN: (纸本)9783031643613;9783031643620

In this paper, computational fluid dynamics modeling techniques to simulate the bubble bursting process and its ability to simulate the production of droplets for different bubble sizes are presented. A closed chamber is filled with fluid and air with the presence of bubbles in the fluid. The rising bubble eventually floats on the free surface forming a thin cap with a typical thickness of the order of 1 mu m. To track the bubble cap, the mesh size must be reduced at least 10 times. In the current work, 2 droplets were obtained as a result of the bubble burst. This is encouraging numerical modeling results;however, the results are not sufficient for quantitative entrainment ratio analysis. The present work has emphasized the need for significantly higher computational power for a thorough analysis. The future work will focus on the simulation of a single bubble, of various sizes, rising and bursting at the free surface. Each bubble size would correspond to a flow regime of a discrete bubble column.

关键词： Bubble burst Film droplets Jet drops CFD entrainment numerical

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Fabric Defect Detection and Localization 1st

Fabric Defect Detection and Localization

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1st European Symposium on Artificial Intelligence in Manufacturing (ESAIM)

作者： Oliveira, Filipe Carneiro, Davide Ferreira, Hugo Guimaraes, Miguel INESC TEC R Dr Roberto Frias 4200 Porto Portugal

ISBN: (纸本)9783031574955;9783031574962

Quality inspection is crucial in the textile industry as it ensures that the final products meet the required standards. It helps detect and address defects, such as fabric flaws and stitching irregularities, enhancing customer satisfaction, and optimizing production efficiency by identifying areas of improvement, reducing waste, and minimizing rework. In the competitive textile market, it is vital for maintaining customer loyalty, brand reputation, and sustained success. Nonetheless, and despite the importance of quality inspection, it is becoming increasingly harder to hire and train people for such tedious and repetitive tasks. In this context, there is an increased interest in automated quality control techniques that can be used in the industrial domain. In this paper we describe a computer vision model for localizing and classifying different types of defects in textiles. The model developed achieved an mAP@0.5 of 0.96 on the validation dataset. While this model was trained with a publicly available dataset, we will soon use the same architecture with images collected from Jacquard looms in the context of a funded research project. This paper thus represents an initial validation of the model for the purposes of fabric defect detection.

关键词： Fabric inspection defect detection object detection

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Modeling on Monthly Streamflow Based on Two Different DEM Resolutions of Basins 23rd

Modeling on Monthly Streamflow Based on Two Different DEM Re...

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2022 International Association for Hydraulic Environmental engineering and Research Asia Pacific Division

作者： Tunas, I. Gede Samatan, Sukandi Univ Tadulako Dept Civil Engn Jalan Soekarno Hatta Km 9 Palu 94119 Indonesia PT Hutama Karya Persero HK Tower Jalan MT Haryono Kav 8 Jatinegara Jakarta 13340 Indonesia

ISBN: (纸本)9789819760084;9789819760091

This paper aims to simulate monthly streamflow based on a basin model driven from two types of DEM resolution, namely 90 m and 30 m. These two types of DEM are sourced from Shuttle Radar Topography Mission (SRTM) products which are free obtained from https://***/. Basin derivation was carried out using QGIS in the Bangga basin, a medium-sized basin on Sulawesi island, Indonesia based on the two types of DEM. Based on the two types of basins, streamflow modeling can then be performed using the HEC-HMS model, with input data of rainfall and streamflow for the period January-December 2020. Clark unit hydrograph, Soil Moisture Accounting (SMA) and recession methods were employed to transform rainfall-streamflow in the HEC-HMS model. As an evaluation approach to assess the goodness of the two DEMs, the simulation results of each monthly streamflow are compared to the observation streamflow, using the Root Mean Square Error (RMSE). Based on the simulation results, it can be concluded that a DEM with a higher resolution will provide a better quality of the basin model, especially on the parameters of the basin area and the configuration of the streamflow network. The quality of this basin model will also have a direct impact on the accuracy of the discharge forecast, in this study it is the monthly discharge.

关键词： Hydrology model Elevation model Watershed topographic Performance

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A Way Beyond Drifting: Cornering at the Unexploited Region of Dynamics 16th

A Way Beyond Drifting: Cornering at the Unexploited Region o...

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16th International Symposium on Advanced Vehicle Control

作者： Lu, Hangyu Wu, Xiaodong Yan, Liang Shanghai Jiao Tong Univ Inst Intelligent Vehicles Shanghai Peoples R China Budapest Univ Technol & Econ Budapest Hungary

ISBN: (纸本)9783031703942;9783031703928;9783031703911

Linear range considerations in the tire-road contact restrict the potential of dynamic control designs of passenger vehicles, while strong nonlinear dynamics such as drifting are intrinsically dangerous. In this paper, based on the chassis with independent wheel drive/brake torque control, we propose a model-based strategy to exploit the potentials of all four tires in combined slips to elevate the cornering performance in critical maneuvers. The model-inversed results indicate that the maximal achievable steady-state (SS) yawing is larger than the widely-used boundary for control system design. Nonlinear dynamics around the created stable motions are further analyzed by plotting phase planes. With feedback control incorporated, the proposed strategy is verified in simulations for both local and global dynamics. The method also shows a distinctive availability of tuning different vehicles into desired driving characteristics and elevating their performance levels through independent powertrains.

关键词： Vehicle dynamics Steering characteristics Combined slip Cornering performance Vehicle stability control

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Assessment of Water Quality in Indravati Sub-basin Using Arcswat 23rd

Assessment of Water Quality in Indravati Sub-basin Using Arc...

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2022 International Association for Hydraulic Environmental engineering and Research Asia Pacific Division

作者： Yuvaraja, P. Manjula, R. Venkateswarlu, Ch Natl Inst Technol Tituchirappalli Dept Civil Engn Trichy India

ISBN: (纸本)9789819760084;9789819760091

Indravati River, a northern tributary of Godavari River, has a catchment area of 44,153 km(2) and is shared by Chhattisgarh, Odisha, Maharashtra, and Telangana states of India. It is one of the major river basins for human and ecological needs, and it supports people through agriculture. However, due to rising nutrient toxicity from excessive agricultural and industrial runoff, a hydrological and water quality model is essential to access streamflow and nutrient loadings and provides water management scenarios to reduce nutrient toxicity. The current study is focused on the development of a water quality model to simulate nitrates and ammonium ion loadings for the Indravati watershed for the period 2000-2012 using the Soil and Water Assessment Tool (SWAT) and for performing Global Sensitivity analysis using SUFI-2 algorithm on SWAT-CUP for assessing the most sensitive parameters which affect the model's efficiency. Statistical performance criteria using R-2 and Nash-Sutcliffe Efficiency (NSE) were 0.74 and 0.71 and 0.71 and 0.69 for NO3- and NH4+ loadings, respectively. This study has revealed that CN2, GW_DELAY, CH_N2, ESCO, and GW_REVAP are the most significant parameters affecting the streamflow and N_UPDIS, RCN, SOL_NO3, and CH_ONCO_BSN are the most significant parameters affecting the nutrient loadings of Indravati River basin. There had not been any study of this type existed on this Indravati River basin and SWAT is used as it provides a flexible structure that allows finding solutions for different water resources, land management, and water pollution problems. The findings of this study would aid in managing land and water resources sustainably for future purposes.

关键词： Streamflow Nutrient toxicity Global sensitivity analysis Significant parameters Indravati river basin

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Compensation of the Driving Torque of Conventional Mechanisms with a Non-constant Transmission 15th

Compensation of the Driving Torque of Conventional Mechanism...

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15th International Conference on Vibration Problems (ICoVP)

作者： Vaclavik, Miroslav Jirasko, Petr Belik, Jan VUTS As Svarovska 619 Liberec 46001 Czech Republic

ISBN: (纸本)9789819959211;9789819959228

The subject of the contribution is a description of ground research work based on two requirements, which are the reduction of energy requirements for the drive of machine mechanisms with a non-constant transmission and the provision of constant input speeds. A solution presented by the design and manufacture of a dynamic stand will be explained. A number of tests and measurements were carried out on the stand. The most important results are presented in the contribution, including theoretical procedures leading to the solution of the presented issues. The goal is to reduce the energy used to drive the mechanisms and minimize the residual oscillation of its compliant links.

关键词： Energy saving Driving torque Cam mechanism

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Intuitive Interfaces for Human-Robot Collaboration: Handling Novel PCBs for Industrial Manufacturing 33rd

Intuitive Interfaces for Human-Robot Collaboration: Handling...

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33rd International Conference on Flexible Automation and Intelligent Manufacturing

作者： Ganglbauer, Markus Akkaladevi, Sharath Chandra Ikeda, Markus Ukleja, Sebastian Moehl, Philipp Pichler, Andreas PROFACTOR GmbH Stadtgut D1 A-4407 Steyr Gleink Austria

ISBN: (纸本)9783031744815;9783031744822

The robotic manipulation of printed circuit boards (PCBs) poses complex challenges. Moreover, the evolving requirements of the production line necessitate the introduction of new types of PCBs, thereby adding challenges during the reconfiguration of the robotic system. This work presents the implementation of intuitive interfaces designed to adapt robotic skills for handling PCBs that are novel to the system. The focus is on tasks related to manipulating PCBs, specifically ensuring stable PCB-pick-up and subsequent highly precise-PCB-placement. Consequently, a multi-modal programming framework is presented that seamlessly integrates vision-based parametrization and kinesthetic teaching, aiming to empower non-robotic experts to reconfigure robotic skills for novel PCB types, even for tasks requiring high accuracy. Additionally, to facilitate these interfaces, a hardware setup is introduced, and the robotic system's adaptability is demonstrated in a laboratory setting during both skill configuration and execution. Finally, limitations of robotic manipulation of PCBs are discussed.

关键词： Human-Robot Collaboration Intuitive Interfaces Robotic Manipulation Industrial Automation

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Integration of Life Cycle Assessment and Value Stream Mapping to Ensure Sustainable Development: A Literature Review 32nd

Integration of Life Cycle Assessment and Value Stream Mappin...

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32nd International Conference on Flexible Automation and Intelligent Manufacturing

作者： Lodgaard, Eirin Brogger, Mette Holmriis Sorumsbrenden, Johanne SINTEF Mfg Grondalsveien 2 N-2830 Raufoss Norway

ISBN: (纸本)9783031381645;9783031381652

Traditional lean tools such as value stream mapping (VSM) do not account for environmental benefits. Simultaneously, life cycle assessment (LCA) does not account for improving manufacturing performance. Given the advent of the concept of sustainable development as an approach to fulfill the needs of the world's population without destroying the planet, integration of environmental benefits and manufacturing performance presents the next frontier of the industrial improvement. LCA can be integrated with VSM to ensure a sustainable development of the manufacturing industry. This paper presents a review of literature on integration of the tools-LCA and VSM. The reviews show that the main motivation factor is to enhance sustainable development. Further, a key finding is the benefit as a guide for decision making, fostering of a systematically improvement focus and increased engagement expanding the focus to include the sustainable aspect in addition to traditional lean measures. This is enabled through a systematically approach with assessing and visualization of the production process performance from a sustainable viewpoint.

关键词： Sustainable manufacturing Lean Value stream mapping Life cycle assessment Literature review

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Artificial Intelligence and I4.0 in Manufacturing: The Role of Sustainability 32nd

Artificial Intelligence and I4.0 in Manufacturing: The Role ...

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32nd International Conference on Flexible Automation and Intelligent Manufacturing

作者： Cardoso, M. G. Ares, E. Ferreira, L. P. Pelaez, G. Polytech Porto ISEP R Dr Antonio Bernardino de Almeida P-4249015 Porto Portugal Univ Vigo Sch Ind Engn Dept Engn Design Vigo 36310 Pontevedra Spain Associate Lab Energy Transports & Aerosp LAETA IN R Dr Roberto Frias 400 P-4200465 Porto Portugal

ISBN: (纸本)9783031381645;9783031381652

Sustainability has become a critical issue for manufacturing companies in recent years, as they strive to meet government-mandated targets. With the rise of Industry 4.0 (I4.0) in the digital age, companies are turning to artificial intelligence (AI) techniques to optimise production processes. In order to support the concepts of I4.0, AI and sustainability, major databases such as Web of Science and Elsevier's Scopus were consulted. The aim of this study is to investigate the relationship between I4.0, AI and sustainability by highlighting the direct and indirect links between these concepts. The study shows that the adoption of digital approaches can significantly improve the sustainability of production systems, provided the right balance is struck. This requires investment in both technology and sustainability measures to achieve a holistic, globally sustainable production system. The study therefore concludes that manufacturers must continue to invest in innovative technologies, including I4.0 and AI, while ensuring that these investments are aligned with their sustainability goals. The research highlights the importance of a balanced approach to digitalisation that optimises production processes, while ensuring that sustainability is not compromised. Ultimately, this research provides valuable insights for managers seeking to navigate the complex relationship between I4.0, AI and sustainability in their manufacturing operations.

关键词： Sustainability Manufacturing Industry 4.0 Artificial Intelligence

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