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Computer-Based Methodology for Geometric Specification Allocation and Stack-Up Analysis for Automotive Components 4th

Computer-Based Methodology for Geometric Specification Alloc...

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4th International conference of the Italian Association of design Methods and Tools for Industrial Engineering

作者： Dalpadulo, Enrico Pini, Fabio Leali, Francesco Univ Modena & Reggio Emilia Enzo Ferrari Dept Engn Via Vivarelli 10-1 I-41125 Modena Italy

ISBN: (纸本)9783031765964;9783031765971

Nowadays, modern vehicles comprise a vast number of components made from various materials and manufactured using different techniques, making the management of assemblability, functionality, and cost highly complex. this complexity necessitates controlling geometrical and dimensional deviations to meet product and process demands. Dimensional Management (DM), supported by standards such as ASME-GD&T and ISO-GPS, is increasingly employed for geometrical specification and tolerance analysis. through Computer-Aided Tolerancing (CAT) tools, tolerances can be considered early in the design process using design for Tolerancing (DfT) approaches. this study aims to develop and define a methodology for geometric specification allocation and tolerance stack-up analysis of automotive components. the methodology integrates predictive models, DM, and DfT approaches via computer-aided tolerance specification and analysis, enabling comprehensive modeling and simulation of tolerance effects on performance, quality, and assemblability. By applying this methodology to a vehicle engine assembly, its feasibility and effectiveness are demonstrated, showing how the integration of CAT tools and theoretical approaches can significantly enhance design accuracy and efficiency.

关键词： Tolerance design Model Based Definition Geometrical Product Specification Geometric Dimensioning and Tolerancing

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Construction of E-Commerce User Profile design Model Based on Deep Learning Algorithm 4

Construction of E-Commerce User Profile Design Model Based o...

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4th IEEE International conference on Mobile Networks and Wireless Communications, ICMNWC 2024

作者： Li, Jiahua School of Information Engineering Guangzhou Vocational University of Science and Technology Guangzhou China

ISBN: (纸本)9798350352931

In rural e-commerce platforms, user behaviors are complex and diverse, and it is difficult for the recommendation system to accurately predict demand, resulting in a low conversion rate of the platform. Based on deep learning, this paper uses deep learning models, that is, models, to analyze user browsing, purchasing, and feedback behaviors, and optimize recommendation algorithms. the research process mainly includes user portrait design and model construction, model description recommendation and optimization, system integration, and application. According to the experiment, the recommendation accuracy of the rural e-commerce user portrait recommendation system increased by 20% or more, and the purchase conversion rate increased by 44.23%. It can be seen that deep learning, especially the recommendation system, can significantly improve the user experience and sales performance of rural e-commerce platforms, especially in personalized recommendation and real-time feedback optimization. On the whole, deep learning can show good performance and high application value in the rural e-commerce recommended user portrait. © 2024 IEEE.

关键词： Marketplaces

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A Framework for Improving Software Development process Hybridization of Extreme Programming, Feature - Driven Development and Waterfall 4

A Framework for Improving Software Development Process Hybri...

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4th IEEE International Maghreb Meeting of the conference on Sciences and Techniques of Automatic Control and Computer Engineering, MI-STA 2024

作者： Hagal, Mohamed Al-Awami, Abdel-Fattah Elakeili, Salwa Benghazi University Faculty of Information Technology Benghazi Libya Higher Institute of Science and Technologyj Computer Department El Marj Libya

ISBN: (纸本)9798350372632

Methodologies serve as the foundation for managing and organizing the software development process, encompassing diverse approaches like feature-driven development, waterfall, and extreme programming. In addressing challenges such as delays, costs, and intricate projects, development teams have adeptly integrated multiple techniques to surmount these complexities. By amalgamating and hybridizing methodologies, software development teams capitalize on distinct strengths and viewpoints, amplifying leverage and refining project outcomes. this, in turn, fosters efficiency and effectiveness in development procedures, ultimately meeting the requirements of users and stakeholders. An advocated framework for augmenting software development processes was implemented, exemplified through the creation of an online hospital management system, meticulously advancing through specific stages. the framework's efficacy was gauged across several criteria, including loading speed, structural stability, and layout, resulting in a system that excels in these aspects. In summation, the integration of disparate methodologies proves impactful in software development endeavors, as evidenced by this research's outcomes. © 2024 IEEE.

关键词： Software design

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integration of Pick by Light in the Context of Learning Factories (Assembly Workstation 4.0) 10th

Integration of Pick by Light in the Context of Learning Fact...

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10th International conference on design and Modeling of Mechanical Systems (CMSM)

作者： Elloumi, Khouloud Triki, Hager Zghal, Bacem Chebbi, Walid Univ Tunis Elmanar Natl Engineers Sch Tunis LR OASIS Tunis Tunisia Univ Sfax Engn Sch Sfax Lab Mechan Modeling & Prod LA2MP Sfax Tunisia Higher Inst Ind Management Sfax Sfax Tunisia Technol Dev Syst TDS Sfax Tunisia

ISBN: (纸本)9783031671517;9783031671524

Nowadays, the technologies offered by Industry 4.0 promote the digitization and optimization of manufacturing processes, particularly within assembly lines. Furthermore, Learning factories provide a reality-conform production environment as a learning environment, thus offering a practical learning experience similar to a real industrial site. In this context, we have developed a learning process aimed at enhancing the performance of an assembly station through the integration of pick-by-light. the comparison between the various presented concepts highlights the improvement of performance index in terms of processing time.

关键词： assembly workstation pick by light industry 4.0 learning factories performance index

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design and Evaluation of A Planar Inverted F-Antenna (PIFA) Array for Microsatellite Communication 4

Design and Evaluation of A Planar Inverted F-Antenna (PIFA) ...

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4th International conference on Intelligent Technologies, CONIT 2024

作者： Kandiraju, Kalyani Vani, B.P. Bhavana, S.R. Bhavana, P.K. Rajiv, Shirin Sai Vidya Institute of Technology Dept. Electronics and Communication Engineering Bengaluru India

ISBN: (纸本)9798350349900

Satellite communication is indispensable for a variety of applications, such as remote sensing, navigation, and data transmission. To meet the diverse needs of these applications, dual-band antennas have become essential, operating efficiently at different frequencies. the 1.7 GHz band strikes a balance between propagation path loss and data rate, whereas the 2.4 GHz band offers higher data rates at the expense of increased path loss. Planar Inverted-F Antennas (PIFAs) have gained popularity in satellite applications due to their compact, low-profile design, ideal for the space constraints of satellites. their omnidirectional radiation patterns ensure consistent communication regardless of the satellite's orientation. Moreover, PIFAs can be seamlessly integrated with printed circuit boards (PCBs), simplifying the fabrication process. However, designing a dual-band PIFA presents challenges. Achieving optimal performance at two distinct frequencies demands meticulous design considerations, especially concerning the antenna's geometry and feeding mechanism. this paper focuses on the design and analysis of a dual-band PIFA antenna operating at 1.7 GHz and 2.4 GHz for satellite applications. Utilizing ANSYS HFSS, we simulate and optimize the antenna's performance in terms of impedance matching, radiation patterns, and gain across both frequency bands. Our design aims to combine compactness suitable for satellite integration with efficient dual-band communication capabilities, meeting the evolving demands of satellite technology. the proposed PIFA structure, comprising a radiating patch and slots, targets dual-band resonance for mobile systems. Simulated using ANSYS HFSS, the PIFA achieves targeted gains of 4.5 dBi and 2.2 dBi at the respective frequencies. the design prioritizes miniaturization for nanosatellite integration while ensuring sufficient gain for reliable communication in resource-constrained space environments. © 2024 IEEE.

关键词： Microwave antennas

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Developing a Game to Assess Abstraction Skills of Elementary Students: design Principles and Validation process 4

Developing a Game to Assess Abstraction Skills of Elementary...

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4th International conference on Educational Technology, ICET 2024

作者： Luo, Qi Zhang, Shuhan Macao Polytechnic University Faculty of Applied Sciences China Heyuan Polytechnic Faculty of Electronics and Information Engineering Heyuan China

ISBN: (纸本)9798350376944

Computational thinking (CT) is a crucial 21st-century skill, and its integration into K-12 education underscores the need for effective assessment tools. Although there are existing tools to measure CT practices, improvements can be made in terms of their assessment formats and data analysis methods. To address this gap, this study develops Critters Puzzle (CP), a game-based assessment tool aimed at measuring primary school students' CT practices, specifically abstraction skills. Based on the Evidence-Centered Game design (ECGD) framework, 12 progressively challenging tasks were developed. To ensure the content validity of the tool, validation was put forward involving expert review and students' cognitive interviews. Twenty-two experts were invited to review the appropriateness of the measurement and seven students (aged 6-10) were invited for interviews to evaluate the usability of the platform and its effectiveness as an assessment tool. Results indicated that the game is engaging, understandable, and appropriately challenging for students, and several modifications were made to the game based on the feedback from experts and interviewees. Future research will involve empirical studies to validate the game's psychometric properties, including its reliability and validity, as an assessment tool for CT practices. © 2024 IEEE.

关键词： Game design

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design and Modeling of Path-Following System in Autonomous RC Car Simulation 4

Design and Modeling of Path-Following System in Autonomous R...

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4th International conference on Electronic and Electrical Engineering and Intelligent System, ICE3IS 2024

作者： Hendriana, Tandri Mahardika Hidayat, Egi Muhammad Idris Hadi, Yulyan Wahyu School of Electrical and Informatics Bandung Institute of Technology Bandung Indonesia

ISBN: (纸本)9798350378368

the Remote Control (RC) car methods are still evolving, with the latest development being the integration of automatic steering, in line with the trend of autonomous vehicles. In this paper, we conducting early-stage research on developing autonomous RC cars through simulation. To design a simulation system for an autonomous RC car, the model of the RC car is required as a reference for further research, we use the kinematic bicycle model. Following the completion of the modeling phase, a validation process must be initiate against the RC. the operation of autonomous RC cars necessitates the implementation of a control system that is capable of adapting to a given trajectory. In some instances, this results in outcomes that are not entirely precise. Path-following algorithm is thought to enhance the accuracy of RC vehicles about their trajectory. While the pure pursuit algorithm can perform the path-following function, the model has not accurately followed the waypoint. In a test with an interval of waypoints in 0.1 and 3, there are discrepancies in the results. the model reaches the endpoint in a shorter time when the interval waypoint is 3 with 38.0s compare to 39.70s, but the model accuracy at 0.1 is better than 3 with RMSE 0.525 compare to 2.538. From the research, it can be concluded that the RC model designed for the implementation process and the model incorporating the pure pursuit algorithm can effectively fulfill their function of following the specified path from the starting point to the endpoint. © 2024 IEEE.

关键词： Bicycles

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WireShape Studio. Using Low-Cost Rapid Prototyping to Explore the design and Creation of Inflatables 25

WireShape Studio. Using Low-Cost Rapid Prototyping to Explor...

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19th International conference on Tangible Embedded and Embodied Interaction

作者： Waldschuetz, Hannes van Koningsbruggen, Rosa Hornecker, Eva Bauhaus Univ Weimar Human Comp Interact Weimar Germany

ISBN: (纸本)9798400711978

In this studio, we will explore the potential of inflatables for tangible interfaces by designing and fabricating inflatable props using a highly versatile and low-cost technique. the WireShape prototyping process can be used by researchers, makers, designers, and artists for the rapid and reliable manufacturing of inflatables. Based on our previous work [2], we introduce an accessible method for creating inflatable user interface elements using hand-made heat-sealing tools made from aluminum wire, applied to tpu-coated fabrics using a widely available T-shirt heat press. the resulting inflatable objects can be used as tangible artifacts for design and experience prototyping, or for the production of research prototypes. the proposed workshop will introduce participants to this method, focusing on the practical aspects of creating inflatables, and will enable participants to explore the potential of inflatables for unique and engaging interactions in the context of interaction design and data physicalisation. through hands-on activities, we will demonstrate how to sketch and create inflatables for tangible interfaces and discuss their benefits, limitations, and the possible integration of sensor technology. As a studio at TEI25, our goal is to facilitate a space where HCI researchers and designers can collaborate, create, and discuss opportunities and challenges.

关键词： inflatables tangible user interfaces soft robotics pneumatics

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Orthogonal simulation and experimental study on SLM process parameters for micro-sized high dynamic components 4

Orthogonal simulation and experimental study on SLM process ...

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4th International conference on Defence Technology, ICDT 2024

作者： Lv, Sining Lou, Wenzhong Feng, Hengzhen Xiao, Chuan Li, Shiyi Science and Technology on Electromechanical Dynamic Control Laboratory School of Mechatronical Engineering Beijing Institute of Technology Beijing China

Metal Additive manufacturing (MAM) technology has become an important means of rapid prototyping of special high dynamic complex components. this study employs selective laser melting (SLM) as a technological approach for investigating micro-sized high dynamic components. the parameters that affect SLM process are analysed, mainly including laser power, laser speed, laser diameter, and scan spacing. Based on prior studies, feasible parameter ranges are identified, and an orthogonal experimental design table is established for simulation and experimental co-verification. Range and variance analysis are conducted and the influence ability of each influencing factor is explored from both simulation and experimental aspects. the SLM process model is established using finite element software, taking into account parameters such as residual stress and maximum deformation. the conclusion is drawn that the order of influence of each factor on the preparation of micro-sized high dynamic components is: scan spacing>laser power>laser diameter> laser speed. Samples of components are fabricated and subjected to static testing. the density of the components can reach over 99.15%, and the structural strength can reach 348 MPa, which meet the required standards and confirm the simulation analysis. the results demonstrates that SLM provides a novel manufacturing method for micro-sized high dynamic components. © 2024 Published under licence by IOP Publishing Ltd.

关键词： Selective laser melting

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Application of the STEAM Methodology for the design of a Scaled-Up Hydroprinting Robotic Arm using LEGO Mindstorms EV3 4

Application of the STEAM Methodology for the Design of a Sca...

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4th IEEE International conference on Advanced Learning Technologies for Education and Research, ICALTER 2024

作者： Visarrea, Blanca Topon Del Salto, Emilio Munoz Universidad Indoamé rica Ingenierí a Industrial Quito Ecuador Universidad Indoamé rica Ingeniería en Tecnologías de la Información Quito Ecuador

ISBN: (纸本)9798331510244

this paper presents the development and evaluation of a LEGO Mindstorms EV3-based robotic arm prototype designed to simulate an automated hydro-printing process. Using STEAM methodology, the prototype allowed students to apply fundamental programming, kinematics and automation concepts in an educational environment. Practices were carried out with 20 industrial engineering students, who were evaluated through a survey with Likert-type questions. the results showed that 85% of the students clearly understood the programming logic, re-flected in a median of 5. In addition, 82% of the students reported understanding the principles of arm motion and kinematics, with a median of 5. However, 22% of the students reported difficulties in understanding automation, with a median of 4. the design process of the prototype included the integration of motors, sensors and modular structures, which allowed the students to simulate a typical automated environment in industrial engineering. the results indicate that the prototype is effective in teaching key programming and kinematics concepts, but suggest the need to improve the educational approach to automation. this project reinforces the value of STEAM methodology in interdisciplinary teaching, providing contextualised and meaningful learning. © 2024 IEEE.

关键词： Students

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