2023 8th International Conference on Smart and Sustainable Technologies (SpliTech)最新文献_第2页

Self-sensing antenna for soil moisture 土壤湿度自感天线

2023 8th International Conference on Smart and Sustainable Technologies (SpliTech) Pub Date : 2023-06-20 DOI: 10.23919/SpliTech58164.2023.10193146

Maja Skiljo, Roko Radanović, T. Perković, Z. Blažević, P. Šolić

引用次数: 0

Computational Fluid Dynamics study of the influence of number of channels on the performance of full-scale PEM fuel cell 通道数对全尺寸PEM燃料电池性能影响的计算流体动力学研究

2023 8th International Conference on Smart and Sustainable Technologies (SpliTech) Pub Date : 2023-06-20 DOI: 10.23919/SpliTech58164.2023.10193636

Toni Škorlić, Željko Penga, G. Radica

{"title":"Computational Fluid Dynamics study of the influence of number of channels on the performance of full-scale PEM fuel cell","authors":"Toni Škorlić, Željko Penga, G. Radica","doi":"10.23919/SpliTech58164.2023.10193636","DOIUrl":"https://doi.org/10.23919/SpliTech58164.2023.10193636","url":null,"abstract":"Proton exchange membrane fuel cells are gaining momentum in the automotive sector due to their favorable characteristics such as quick refueling times, silent operation, high efficiency, and clean energy production with only byproducts being heat and water. In this study, numerical models are developed using state-of-the-art Computational Fluid Dynamics modeling software for full-scale single PEM (Proton Exchange Membrane) fuel cells with different flow fields. Commonly, for small-scale fuel cells, such as 25 cm2, single serpentine is used for operation. The objective of this work was to see if the performance can be enhanced by increasing the number of channels, while it was also important to keep the dimensions of the channels feasible for manufacturing using CNC (Computer Numerical Control) milling and the available drill bit sizes. The number of channels was increased from one to three and the relative humidity of the reactants was set to partially and fully humidified. The results of the simulations indicate a considerable difference in the performance of the cells on elevated current densities, especially for the cases with lower relative humidity. The results of this study outline the requirement for the development of a standardized flow field for testing small active area single cells in the future.","PeriodicalId":361369,"journal":{"name":"2023 8th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123461667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Literature review of key performance indicators for Supplier Quality Management in Automotive Electronics Industry 汽车电子行业供应商质量管理关键绩效指标的文献综述

2023 8th International Conference on Smart and Sustainable Technologies (SpliTech) Pub Date : 2023-06-20 DOI: 10.23919/SpliTech58164.2023.10192584

Petya Petkova, Milena Petkova, Boyan Jekov, E. Kovatcheva

{"title":"Literature review of key performance indicators for Supplier Quality Management in Automotive Electronics Industry","authors":"Petya Petkova, Milena Petkova, Boyan Jekov, E. Kovatcheva","doi":"10.23919/SpliTech58164.2023.10192584","DOIUrl":"https://doi.org/10.23919/SpliTech58164.2023.10192584","url":null,"abstract":"Quality management in the electronic field is critical to ensuring that electronic products are manufactured to meet the needs and expectations of customers. It involves a set of practices and procedures designed to ensure that products meet defined quality standards and are produced consistently, with minimal defects. The goal of this paper is to find the most sufficient key performance indicators (KPIs) in the supply chain management system in automotive industry. As a starting point towards achieving the goal has been made some literature review of the specific area, especially for the selection criteria of electronic components in automotive industry. The defined key performance indicators in the Automotive Standard International Automotive Task Force (IATF) 16949 have been accounted, and KPIs used in worldwide electronics manufacturing company for automotive and household industry during the supplier evaluation process, have been included in this research as well. Two approaches – 1) “Weight to Correlation” in order to identified the most important KPIs separately from the reviewed literature, IATF Standard and the manufacturing company and 2) Principal Component Analysis (PCA) for the all criteria of KPIs pyramid of suppliers selection and evaluation process have been applied and resulted into a finally set of KPIs. This final set will be validated as the most sufficient indicators for prediction of riskiness of new and already approved vendors for automotive industry in our future work.","PeriodicalId":361369,"journal":{"name":"2023 8th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132812606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical analysis of coolant flow field for maintaining the desired temperature profile along the PEM fuel cell 维持PEM燃料电池所需温度分布的冷却剂流场数值分析

2023 8th International Conference on Smart and Sustainable Technologies (SpliTech) Pub Date : 2023-06-20 DOI: 10.23919/SpliTech58164.2023.10192585

Tino Vidović, Željko Penga, Jure Penga, G. Radica, I. Tolj, Jakov Šimunović

{"title":"Numerical analysis of coolant flow field for maintaining the desired temperature profile along the PEM fuel cell","authors":"Tino Vidović, Željko Penga, Jure Penga, G. Radica, I. Tolj, Jakov Šimunović","doi":"10.23919/SpliTech58164.2023.10192585","DOIUrl":"https://doi.org/10.23919/SpliTech58164.2023.10192585","url":null,"abstract":"When it comes to replacing fossil fuels in the near future, proton exchange membrane (PEM) fuel cells are a viable option for reducing greenhouse gas emissions. Nevertheless, the high cost and complexity of PEM fuel cells are currently a significant barrier to commercialization. Most issues associated with PEMFC operation could be avoided if high membrane hydration is achieved without the necessity for external humidification while preventing excessive water accumulation within the cell. One of the effective methods to achieve such an operation is a variable temperature flow field, based on maintaining non-uniform temperature along the flow field of the cell, thus manipulating the evaporation pressure along the flow field. In this study, the Computational Fluid Dynamics model is developed for a full-scale single cell of 50 cm2 with coolant channels. The objective of the study is to develop the flow field for coolant channels which will result in a uniform temperature gradient along the entire active area of the cell, thus enabling the application of the variable temperature flow field even when serpentine reactant channels are used. The results of this study indicate that it is possible to prescribe and maintain variable temperature flow fields for serpentine reactant flow fields, and the developed coolant flow field will be used as a basis to develop a new experimental setup and later to develop a small PEM fuel cell stack with higher performance when compared to standard isothermal operation.","PeriodicalId":361369,"journal":{"name":"2023 8th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131067256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Standards-based Approach for Cross-Domain Modelling of Smart City System Architectures 基于标准的智慧城市系统架构跨领域建模方法

2023 8th International Conference on Smart and Sustainable Technologies (SpliTech) Pub Date : 2023-06-20 DOI: 10.23919/SpliTech58164.2023.10193583

G. Lastro, Jounes-Alexander Gross, C. Neureiter

{"title":"A Standards-based Approach for Cross-Domain Modelling of Smart City System Architectures","authors":"G. Lastro, Jounes-Alexander Gross, C. Neureiter","doi":"10.23919/SpliTech58164.2023.10193583","DOIUrl":"https://doi.org/10.23919/SpliTech58164.2023.10193583","url":null,"abstract":"The inherent complexity of systems in the domain of smart cities demands a suitable modelling framework to facilitate development and interdisciplinary communication. In the domain of smart grids, the Smart Grid Architecture Model (SGAM) framework provided means for coping with complexity whilst supporting a cross-disciplinary understanding of modelled systems. Similar approaches exist for the automotive and industry domains. As a complex smart city system may combine various application domains, interoperability between applied modelling frameworks is imperative to simplify cross-domain collaboration. Therefore, to be suitable, a modelling framework needs to target the concerns of stakeholders from the smart city, whilst simultaneously enabling interoperability between all connected application domains. The presented approach is a standards-based systems engineering framework, implemented as Domain Specific Language (DSL) and based upon the Smart City Reference Architecture Methodology (SCRAM). Moreover, the DSL is used to model a particular system solution to evaluate its applicability.","PeriodicalId":361369,"journal":{"name":"2023 8th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128889234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Upper Bound Performances of Laser-Induced Graphene Dipoles in the UHF Band 超高频波段激光诱导石墨烯偶极子的上界性能

2023 8th International Conference on Smart and Sustainable Technologies (SpliTech) Pub Date : 2023-06-20 DOI: 10.23919/SpliTech58164.2023.10192954

Alessio Mostaccio, Andrea Salvia, G. Antonelli, E. Martinelli, G. Marrocco

{"title":"Upper Bound Performances of Laser-Induced Graphene Dipoles in the UHF Band","authors":"Alessio Mostaccio, Andrea Salvia, G. Antonelli, E. Martinelli, G. Marrocco","doi":"10.23919/SpliTech58164.2023.10192954","DOIUrl":"https://doi.org/10.23919/SpliTech58164.2023.10192954","url":null,"abstract":"Laser ablation can easily create graphene traces through the photothermal conversion of polymeric films. The so-obtained graphene, known as Laser-Induced Graphene (LIG), is eco-friendly, biocompatible and easy to produce, making it a promising option for creating flexible and conformable electronics for environmentally friendly and cost-effective communication over short to medium distances.Since LIG conductivity is significantly lower than that of standard conductors, the radiation efficiency of a LIG-antenna does not increase in a straightforward manner as expected for lossy materials. Hence, in this paper, we numerically and experimentally varied the length of a dipole antenna to identify the ideal size to achieve maximum radiation efficiency.The results showed that the lasing parameters that affect the properties of LIG only have an impact on the maximum radiation efficiency, and partly on the antenna size. Additionally, even with the most conductive LIG and optimal size, the radiation efficiency was still only 2 dB lower than that of copper.","PeriodicalId":361369,"journal":{"name":"2023 8th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"81 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131302923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hand Gesture Recognition System with Finite State Machine for Remote Desktop Control 面向远程桌面控制的有限状态机手势识别系统

2023 8th International Conference on Smart and Sustainable Technologies (SpliTech) Pub Date : 2023-06-20 DOI: 10.23919/SpliTech58164.2023.10193307

Robert Noparlik, R. Zdunek

{"title":"Hand Gesture Recognition System with Finite State Machine for Remote Desktop Control","authors":"Robert Noparlik, R. Zdunek","doi":"10.23919/SpliTech58164.2023.10193307","DOIUrl":"https://doi.org/10.23919/SpliTech58164.2023.10193307","url":null,"abstract":"Humans may interact with computers in many ways. One of them can be communication through recognition and right interpretation of hand gestures. This study addresses the problem of remote desktop control through visual-based human–computer interaction that is based on hand gesture recognition. We designed and implemented the hand gesture recognition system that combines various machine learning (ML)-based technologies, including the MediaPipe Hands model for detection of keypoints on hands, and the artificial neural network for classification of single static gestures. To recognize dynamic or group gestures that are assigned to command actions, we proposed a flexible recognition system that is based on the concept of finite state machines. The new group gestures do not require retraining and can be easily composed of single existing gestures, making our approach more accessible to the end user. The experiments demonstrated that our system can correctly recognize a few group gestures for performing the following operations on the computer desktop: cursor movement, clicking, window dragging, full-screen switch on/off, zooming in/out, window closing, and active window switching.","PeriodicalId":361369,"journal":{"name":"2023 8th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131313938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An IoT-based Platform for Remote Monitoring of Patients with Heart Failure: an Overview of Integrable Devices 基于物联网的心力衰竭患者远程监测平台:可集成设备概述

2023 8th International Conference on Smart and Sustainable Technologies (SpliTech) Pub Date : 2023-06-20 DOI: 10.23919/SpliTech58164.2023.10193686

Ilaria Sergi, Teodoro Montanaro, A. Shumba, R. de Fazio, Paolo Visconti, L. Patrono

{"title":"An IoT-based Platform for Remote Monitoring of Patients with Heart Failure: an Overview of Integrable Devices","authors":"Ilaria Sergi, Teodoro Montanaro, A. Shumba, R. de Fazio, Paolo Visconti, L. Patrono","doi":"10.23919/SpliTech58164.2023.10193686","DOIUrl":"https://doi.org/10.23919/SpliTech58164.2023.10193686","url":null,"abstract":"The paper reports a survey of wearable/portable devices on the market and in the scientific literature to support diagnosing patients with chronic heart diseases. As a part of eHealth and Telehealth systems, such devices remotely and discreetly acquire the patient’s data and transmit them to dedicated cloud applications and portals. This activity constitutes the starting point for the subsequent development of the wearable devices and telemedicine platform under study in the SMART CARE project. The acquired parameters, architecture, and main specifications of each analyzed device are discussed, highlighting their strengths and limitations; particular attention was paid to their sensing section, considering the used sensors, electrodes’ typology, as well as their integration inside the device. Besides, the operating modalities and implemented algorithms are argued, as well as the implemented processing approach and architecture of the supporting telemedicine infrastructure. Furthermore, a comparative analysis of discussed wearable/portable devices is introduced, comparing them from the point of view of detected parameters, application body area, performance, availability of wireless connections, etc. In this way, the features, functionalities, and architectures of the devices developed in the SMART CARE project are outlined.","PeriodicalId":361369,"journal":{"name":"2023 8th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117029511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New energy storage design methods 新的储能设计方法

2023 8th International Conference on Smart and Sustainable Technologies (SpliTech) Pub Date : 2023-06-20 DOI: 10.23919/SpliTech58164.2023.10192931

Aneta Kalbarczyk, A. Zalewska, M. Marzantowicz, Michał Kalbarczyk

引用次数: 0

Wireless Power Transfer by using Thin Wire Antennas : Case of Dipole Antennas in Free Space 利用细线天线进行无线电力传输:以自由空间中的偶极子天线为例

2023 8th International Conference on Smart and Sustainable Technologies (SpliTech) Pub Date : 2023-06-20 DOI: 10.23919/SpliTech58164.2023.10193420

D. Poljak, Josipa Boban

引用次数: 0