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23rd International Conference on Electronics Packaging, ICEP 2024

作者： Ho, Cheng-Yu Hsiao, Wen-Chun Hsieh, Sheng-Chi Wang, Chen-Chao Lee, Hsu-Yang Inc. Electrical Laboratory Product Design Division Corporate Research And Development Taiwan

ISBN: (纸本)9784991191176

This paper discusses the losses of transition from Millimeter-Wave Antenna in package (mmWave AiP) with test socket. This study provides AiP designers to easily evaluate and optimize the electrical performance of AiP. The proposed 2×2 broadband dual-polarized antenna array designed on the 10 (4+2+4) multi-layer organic substrates with size of 13×13×0.87 mm3, The proposed AiP with test socket has better than 10 dB return loss in 24.5-29.5 GHz range, with 5 GHz bandwidth and provides a high-gain (above 11 dBi) radiation pattern for 5G mmWave beamforming application. © 2024 Japan Institute of Electronics Packaging.

关键词： Millimeter waves

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Topology optimisation of multiple robot links considering screw connections

Topology optimisation of multiple robot links considering sc...

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2024 International design Society Conference, design 2024

作者： Wanninger, Tobias Frank, Jintin Zimmermann, Markus Technical University of Munich TUM School of Engineering and Design Department of Mechanical Engineering Laboratory for Product Development and Lightweight Design Germany

This paper presents a method for the lightweight design of robotic links subject to dynamic loads and requirements on the overall system stiffness. It includes (1) a decomposition scheme to enable separate component optimization and (2) an approach based on topology optimization for optimal load path design of screw connections. The approach reduces computing cost and mass of designs with screw connections. © 2024 Proceedings of the design Society. All rights reserved.

关键词： Dynamic loads

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ON THE TREATMENT OF REQUIREMENTS IN DFAM: THREE INDUSTRIAL USE CASES 24

ON THE TREATMENT OF REQUIREMENTS IN DFAM: THREE INDUSTRIAL U...

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24th International Conference on Engineering design, ICED 2023

作者： Endress, Felix Rieser, Jasper Zimmermann, Markus Laboratory for Product Development and Lightweight Design Tum School of Engineering and Design Technical University of Munich Germany

Optimization-driven design offers advantages over traditional experience-based mechanical design. As an example, topology optimization can be a powerful tool to generate body shapes for Additive Manufacturing (AM). This is helpful, when (1) load paths are non-intuitive due to complex design domains or boundary conditions, or (2) the design process is to be automated to minimize effort associated with experience-based design. However, practically relevant boundary conditions are often difficult to put into a formal mathematical language to, for example, either feed it into a topology optimization algorithm, or provide precise quantitative criteria for CAE-supported manual design. This paper presents a survey of three industry use cases and identifies three types of requirements: the first can be directly cast into parts of an optimization problem statement (∼ 40%), the second is considered indirectly by adapting the optimization problem without explicit reference to the requirement (∼ 20%), and the third is only assessed after the design is finalized (∼ 40%). For categories 2 and 3 we propose directions of improvement to support formulating complex design tasks as unambiguous design problems. © The Author(s), 2023. Published by Cambridge University Press.

关键词： 3D printing

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Improving sustainability of additive manufacturing processes based on digital twins – a case study

Improving sustainability of additive manufacturing processes...

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2024 International design Society Conference, design 2024

作者： Kos, Jessica Schröder, Philipp Trauer, Jakob Endress, Felix Mörtl, Markus Zimmermann, Markus Technical University of Munich TUM School of Engineering and Design Laboratory for Product Development and Lightweight Design Germany em engineering methods AG Germany

Additive manufacturing (AM) became a key technology in the development of innovative products. Advancements have been made to improve economic feasibility. However, ecological sustainability is still an open issue of AM. To improve sustainability, it is crucial to track, visualize, and evaluate emissions along the lifecycle. This paper presents a novel Digital Twin based approach enabling prediction of the product carbon footprint (PCF) and prescriptive measures to improve sustainability. By improving part and process design, a significant PCF reduction was achieved. © 2024 Proceedings of the design Society. All rights reserved.

关键词： Ecodesign

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A DIGITAL TWIN BUSINESS MODELLING APPROACH 24

A DIGITAL TWIN BUSINESS MODELLING APPROACH

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24th International Conference on Engineering design, ICED 2023

作者： Trauer, Jakob Mac, Duc Phat Mörtl, Markus Zimmermann, Markus Technical University of Munich Tum School of Engineering and Design Department of Mechanical Engineering Laboratory for Product Development and Lightweight Design Germany

Digital Twins are one of the most trending topics. However, there are still open issues in the development of Digital Twins. One of these impediments is formulating a clear and valid value proposition of a Digital Twin. Therefore, this paper presents a novel business modelling approach for Digital Twins. Based on a literature review and an academic case study, different business modelling approaches and techniques were systematically compared, selected and adjusted in order to develop a new framework suitable for describing the value of Digital Twins. It consists of 10 steps - (1) describe a basic development concept of the DT, (2) identify the customer segments, needs and pain points, (3) derive a value proposition (4) identify revenue streams and values created, (5) identify key activities, (6) resources needed, and (7) necessary partners. (8) Adapt the organization to fit the business model and (9) evaluate the cost structure of the project. In the end, document and communicate the new business model (10). Each step is supported by auxiliary methods, tools and procedures. The approach was applied to a scientific case study. In an initial evaluation the overall applicability and usefulness of the approach were confirmed. © The Author(s), 2023. Published by Cambridge University Press.

关键词： Business models and considerations Case study Digital / Digitised engineering value chains Digital Twin

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Tactics to optimize conversion-type metal fluoride/sulfide/oxide cathodes toward advanced lithium metal batteries

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Nano Research 2023年第6期16卷 8173-8190页

作者： Dong Yan Hui Ying Yang Ying Bai International Joint Laboratory of New Energy Materials and Devices of Henan Province School of Physics&ElectronicsHenan UniversityKaifeng 475004China Pillar of Engineering Product Development Singapore University of Technology and DesignSingapore 487372Singapore

Considering limited energy density of current lithium metal batteries(LMBs)due to low capacity of traditional intercalation-type cathodes,alternative high-energy cathodes are eagerly *** this regard,conversion-type metal fluoride/sulfide/oxide cathodes have emerged great attention owing to their high theoretical specific capacities,supplying outstanding energy density for advanced ***,their low ionic/electrical conductivities,huge volume changes,sluggish reaction kinetics,and severe side reactions result in quick capacity fading and poor rate capability of *** research efforts on the conversiontype cathodes have brought new insights,as well as effective approaches toward realizing their excellent electrochemical ***,the recent discoveries,challenges,and optimizing strategies including morphology regulation,phase structure engineering,surface coating,heterostructure construction,binder functionalization,and electrolyte design,are reviewed in ***,perspectives on the conversion-type metal fluoride/sulfide/oxide cathodes in LMBs are *** is believed that the conversion-type cathodes hold a promising future for the next-generation LMBs with high energy density.

关键词： conversion-type cathodes electrochemical performances optimizing strategies lithium metal batteries

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Automatic design and Optimization of a Satellite Structure Using Parametric CAD Modeling 9th

Automatic Design and Optimization of a Satellite Structure U...

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9th International Conference on Research into design, ICoRD 2023

作者： Zhang, Yunzhe Frank, Jintin Zimmermann, Markus Department Mechanical Engineering Laboratory for Product Development and Lightweight Design Technical University of Munich TUM School of Engineering and Design Garching by Munich Germany

ISBN: (纸本)9789819902637

A satellite payload structure is to be designed to meet mechanical requirements, e.g., on its dynamic behavior. The design variables are the positions and thicknesses of stiffening ribs and panels. Due to the large number of design variables, experience-based design may lead to a suboptimal result. Therefore, parametric optimization is adopted. Automatic variation of the position of structural elements is not straightforward, as geometrical interfaces between them must be adapted. For fast assessment of many variants, an automatic design procedure is proposed that includes (1) a parametric CAD model that automatically updates the interfaces between structural elements, (2) a finite element-based assessment of the quantities of interests, and (3) a systematic analysis of the relation between design variables and quantities of interest based on design of experiments. The finite element model adopts tetrahedral solid elements. Solids are numerically more expensive than shell elements, and tetrahedral elements are known to be of low accuracy. However, automatic meshing is now possible to enable a full-scale DoE analysis on a level of sufficient geometric detail. To demonstrate the effectiveness of the approach, the primary and support structure of the so-called Wide Field Imager of the ATHENA space program is analyzed and design improvements are presented. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Finite element method

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Transcriptome analysis reveals the genetic basis of crest cushion formation in duck

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Journal of Integrative Agriculture 2024年第12期23卷 4172-4185页

作者： Lan Huang Qixin Guo Yong Jiang Zhixiu Wang Guohong Chen Guobin Chang Hao Bai Joint International Research Laboratory of Agriculture and Agri-Product Safety Ministry of Education/Institutes of Agricultural Science and Technology DevelopmentYangzhou UniversityYangzhou 225009China Key Laboratory of Animal Genetics and Breeding and Molecular Design of Jiangsu Province College of Animal Science and TechnologyYangzhou UniversityYangzhou 225009China

The Chinese crested duck is a unique duck breed having a bulbous feather shape on its duck ***,the mechanisms involved in its formation and development are *** the present study,RNA sequencing analysis was performed on the crested tissues of 6 Chinese crested ducks and the scalp tissues of 6 cherry valley ducks(CVs)from 2 developmental *** study identified 261 differentially expressed genes(DEGs),122 upregulated and 139 downregulated,in the E28 stage and 361 DEGs,154 upregulated and 207 downregulated in the D42 stage between CC and CV *** subsequent results of weighted gene co-expression network analysis(WGCNA)revealed that the turquoise and cyan modules were associated with the crest trait in the D42 stage,meanwhile,the green,brown,and pink modules were associated with the crest trait in the E28 *** analysis of the DEGs and WGCNA showed that 145 and 45 genes are associated between the D42 and E28 stages,*** expression of WNT16,BMP2,SLC35F2,SLC6A15,APOBEC2,ABHD6,TNNC2,MYL1,and TNNI2 were verified by real-time quantitative *** study provides an approach to reveal the molecular mechanisms underlying the crested trait development.

关键词： crested duck RNA-sequencing weighted gene co-expression network analysis differentially expressed genes

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EXPLORING THE POTENTIAL OF MUSICAL ACTIVITY SYSTEMS FOR PEOPLE WITH DEMENTIA AND THEIR CAREGIVERS 16

EXPLORING THE POTENTIAL OF MUSICAL ACTIVITY SYSTEMS FOR PEOP...

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16th International Conference on ICT, Society and Human Beings, ICT 2023, the 15th International Conference on e-Health, EH 2023, the 9th International Conference on Connected Smart Cities, CSC 2023 and 8th International Conference on Big Data Analytics, Data Mining and Computational Intelligence, BigDaCI 2023

作者： Tseng, Kevin C. Liu, Chieh-Yun Tsai, Tsai-Husan Department of Industrial Design National Taipei University of Technology Taipei Taiwan Product Design and Development Laboratory Taoyuan Taiwan Chang Gung University Taiwan

ISBN: (纸本)9789898704504

As our population ages, more and more people develop dementia, which is a great concern for families and communities. Music has been found to be useful in relieving symptoms of dementia and in promoting interaction between patients, caregivers, and family members. However, music therapy requires a music therapist to plan and prepare equipment that is tailored to the preferences and needs of each patient. It can also be difficult to continue musical activities outside therapy sessions due to the lack of musical experience between patients and caregivers. To solve this problem, a study was conducted to investigate how caregivers can conduct musical activities using equipment commonly used in music therapy. A literature review was used to understand current issues affecting people with dementia and approaches to music therapy. © ICT *** rights reserved.

关键词： Music

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Satellite Payload design for Optimized Thermal Management Using a Distributed Processor System

Satellite Payload Design for Optimized Thermal Management Us...

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2023 Forum on Specification and design Languages, FDL 2023

作者： Plattner, Markus Fassi, Chedi Kreiner, Florian Frank, Jintin Radecker, Philipp Zimmermann, Markus Engineering Minds Munich GmbH Munich Germany Technical University of Munich Laboratory for Product Development and Lightweight Design Munich Germany

ISBN: (纸本)9798350307375

Processor Layout Utilization for Thermal Optimization (PLUTO) is a research project that started in 2022 and is co-funded by the Bavarian Ministry of Economic Affairs, Regional development, and Energy. In a consortium of space industry and university, the PLUTO project investigates new methodologies for designing thermally sensitive satellite payloads accommodating distributed processor modules. A top-down design approach, based on so-called solution spaces, is applied to arrange modules within a given payload envelope and find a payload layout with low thermal gradients for various operational modes. A digital twin of the thermal behavior of the system shall then be derived from the design and implemented as a software routine in the processor modules. The temperature gradients within the payload shall be minimized by adjusting the distribution of power consumption within the payload. Therefore, the system control and processing tasks are locally distributed among the modules on the fly based on the prediction of the digital twin. A demonstrator payload with three interconnected processor modules is currently under development and is expected to be thermally tested in 2024. copy;2023 IEEE. © 2023 IEEE Computer Society. All rights reserved.

关键词： Satellites

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