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74th International Astronautical Congress, IAC 2023

作者： Hsieh, Jordan H. Huang, Yi-Lung Li, She-Shen Huang, Ping-Han Li, Yueh-Heng Department of Aeronautics and Astronautics National Cheng Kung University Tainan70101 Taiwan International Doctoral Degree Program on Energy Engineering National Cheng Kung University Tainan70101 Taiwan

The study examines the effects of planar anode surface roughness on heaterless hollow cathode discharge characteristics. Three distinct roughness levels, Ra 1.6, Ra 3.2, and Ra 6.4, were achieved using a specialized machining procedure. A pivotal observation highlights the relationship between discharge voltage and the surface texture of the anode. As surface roughness intensifies, the planar anode demands a decreased discharge voltage to uphold the primary discharge. This phenomenon can be attributed to the increased surface area from roughness, promoting efficient electron current collection. Furthermore, oscillations in discharge voltage appear to be inversely proportional to the surface roughness of the planar anode, potentially tied to variations in the neutral gas density gradient near the anode and cathode. Such insights are instrumental for standardizing hollow cathode tests and set a foundation for more in-depth research in subsequent studies. Copyright © 2023 by the International Astronautical Federation (IAF). All rights reserved.

关键词： Anode Cathode Discharge Heaterless Surface

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Investigation of Cylindrical Anode Diameter Influence on Hollow Cathode Operating Characteristics 74

Investigation of Cylindrical Anode Diameter Influence on Hol...

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74th International Astronautical Congress, IAC 2023

作者： Hsieh, Jordan H. Huang, Yi-Lung Huang, Ping-Han Wang, Wei-Cheng Li, Yueh-Heng Department of Aeronautics and Astronautics National Cheng Kung University Tainan70101 Taiwan International Doctoral Degree Program on Energy Engineering National Cheng Kung University Tainan70101 Taiwan

This research delves into the effects of cylindrical anode dimensions on the steady-state discharge of open-ended heaterless hollow cathodes. The study assessed anode diameters of 38 mm, 74 mm, and 102 mm. Challenges arose when utilizing the 102 mm diameter anode in diode mode, with a suspected divergent electric field stemming from the anode's size and closeness hindering consistent discharge between the cathode and anode. The cathode was set to operate in triode mode with the keeper adjusted to a discharge current of 1.2 A to navigate this impediment, ensuring the axial electric field's adequacy. In contrast, tests with 74 mm and 38 mm anodes were conducted in diode mode, with the keepers kept unpowered. Analysis of the I-V curves underscored a typical negative resistance in the cathode discharge, a phenomenon attributable to the diminishing emitter sheath voltage with elevating electron energy flux and emitter surface temperatures. A pronounced inverse correlation between the steady-state discharge current and gas flow rate was also discerned, connected to rising emitter temperatures and enhanced plasma drift resistance in the keeper orifice. Notably, anode diameter emerged as a determinant of current leakage, with the 74 mm anode presenting a reduced discharge voltage compared to the 38 mm due to augmented current leakage. Conversely, the 102 mm anode demanded a higher voltage, a requirement linked to its attenuated axial electric field, compelling a rise in voltage for a sufficient current draw to the anode power supply. These discoveries furnish understanding for refining open-ended heaterless hollow cathode designs and pave the way for subsequent inquiries into cathode plumes. Copyright © 2023 by the International Astronautical Federation (IAF). All rights reserved.

关键词： Anode Cathode Diameter Geometry Heaterless

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Operational interpretation of the Choi rank through exclusion tasks

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Physical Review A 2024年第5期110卷 L050601-L050601页

作者： Benjamin Stratton Chung-Yun Hsieh Paul Skrzypczyk Quantum Engineering Centre for Doctoral Training H. H. Wills Physics Laboratory and Department of Electrical & Electronic Engineering University of Bristol Bristol BS8 1FD United Kingdom H.H. Wills Physics Laboratory University of Bristol Tyndall Avenue Bristol BS8 1TL United Kingdom CIFAR Azrieli Global Scholars Program CIFAR Toronto Canada

The Choi state is an indispensable tool in the study and analysis of quantum channels. Considering a channel in terms of its associated Choi state can greatly simplify problems. It also offers an alternative approach to the characterization of a channel, with properties of the Choi state providing novel insight into a channel's behavior. The rank of a Choi state, termed the Choi rank, has proven to be an important characterizing property, and here, its significance is further elucidated through an operational interpretation. The Choi rank is shown to provide a universal bound on how successfully two agents, Alice and Bob, can perform an entanglement-assisted exclusion task. The task can be considered an extension of superdense coding, where Bob can only output information about Alice's encoded bit string with certainty. Conclusive state exclusion, in place of state discrimination, is therefore considered at the culmination of the superdense coding protocol. In order to prove this result, a necessary condition for conclusive k-state exclusion of a set of states is presented in order to achieve this result, and the notions of weak and strong exclusion are introduced.

关键词： Quantum channels Quantum communication, protocols & technology Quantum information processing Quantum information theory

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@***: an ongoing archive of seeing

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Photographies 2021年第2期14卷 199-220页

作者： Reis, Cláudio Doctoral Program in Digital Media Faculty of Engineering University of Porto Portugal

Since 2014, photographer Stephen Shore has been exploring Instagram as a new body of work, having its own online portfolio entry next to iconic series as American Surfaces and Uncommon Places. Instead of joining contemporary debates concerning the crisis of representation implicit in the networked condition of the photographic image, Shore is keen to engage with Instagram through the lens of modernism, concentrating his attention on the visual characteristics intrinsic to photography as a medium, a reasoning previously encapsulated in the primer The Nature of Photographs. Building upon selected samples from Shore’s pre-digital archive in addition to his most recent series, Details, the research takes @*** as a significant case study to examine how Instagram affects the modernist emphasis on seeing photographically the ordinary, evaluating the contemporary relevance of Shore’s networked notational impulse when many Instagram users engage with photography to keep a quasi-diaristic practice. Looking at the traces of everyday life, envisaged for Instagram or the gallery wall, the camera is but a tool for reflecting upon a concept Shore long borrowed from the great writer T. S. Eliot: the “objective correlative”, allowing for poetry to be found, and given visual structure. © 2021 Informa UK Limited, trading as Taylor & Francis Group.

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7th International Conference of Computer and Informatics engineering, IC2IE 2024

作者： Wandy, Wandy Adi, Kusworo Ayu, Media Anugerah Diponegoro University Doctoral Program of Information Systems School of Postgraduate Studies Semarang Indonesia Diponegoro University Faculty of Science and Mathematics Department of Physics Semarang Indonesia Sampoerna University Faculty of Engineering and Technology Department of Computer Science South Jakarta Indonesia

ISBN: (纸本)9798331505530

Full-marathon and Half-marathon distances are categorized as road running. Full-marathon running is becoming increasingly popular, and Half-marathon is increasing worldwide in both sexes and all age groups. Some aspects might relate to Full-marathon and Half-marathon running performance during training and races. Technology also plays an essential role in supporting runners and running races. Technology like artificial intelligence (AI) now supports the running athlete, not only predicting performance and results. It can also be used later to help the coach generate training programs for the athlete. This research aimed to find many aspects of marathons and performance and analyze them to see if artificial intelligence could later support them. It used secondary data and a systematic literature review proposed by Kitchenham. Out of the 58 articles, 21 of them (36.21%) received a score of 1 from Q1. Additionally, 19 articles (32.76%) received a score of 1 from both Q2 and Q3. Among the 58 articles, 9 (15.52%) received a total score of 3, with all three Q1, Q2, and Q3 scores being 1. This indicates that artificial intelligence will likely support the content of these nine articles. Several factors were also discovered to be connected to marathons and athletic performance. These findings suggested that additional investigation into marathons and performance, later backed by artificial intelligence, remained pertinent and essential. © 2024 IEEE.

关键词： artificial intelligence aspects marathon performance

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Multi Task Classification Using Deep Learning Approaches for Big Five Personality Traits Prediction: A Review 11

Multi Task Classification Using Deep Learning Approaches for...

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11th International Conference on Information Technology, Computer and Electrical engineering, ICITACEE 2024

作者： Nudin, Salamun Rohman Gernowo, Rahmat Somantri, Maman Wibowo, Adi Doctoral Program of Information System School of Postgraduate Studies Diponegoro University Semarang Indonesia Diponegoro University Faculty of Science and Mathematics Department of Physics Semarang Indonesia Diponegoro University Faculty of Engineering Department of Electrical Engineering Semarang Indonesia Diponegoro University Faculty of Science and Mathematics Department of Informatics Semarang Indonesia

ISBN: (纸本)9798350389289

This paper presents a comprehensive review of deep learning methods for the Big Five personality traits prediction using multi-task classification. The purpose of the review is to determine the performance of models developed in previous research to describe research opportunities and challenges in the future. The Big Five model is a framework in psychology that categorizes human personality into five dimensions: openness, conscientiousness, extraversion, agreeableness, and neuroticism. The review begins by analyzing 22 articles from the Science Direct, IEEE Xplore, and Scopus databases by applying screening using the Big Five Personality keywords. Then study the concepts of deep learning for model development such as: input, architecture, method, dataset, and performance to identify the strengths and limitations of each approach. The review results of the highest average accuracy by modality such as unimodal text with essay dataset (80.98%), unimodal image with ImageNet dataset (95.36%), unimodal audio with SSPNet dataset (79.48%), bimodal image and audio with Chalearn Video First Impression dataset (91.67%), multimodal text, image, and audio with Chalearn Video First Impression dataset (91.88%). The average accuracy of the Big Five Personality traits was highest (95.36%) and lowest (59%). This highlights the need for standard benchmarks, interpretable models and interdisciplinary collaboration to improve the accuracy, reliability and ethical implications of personality prediction. Future research is expected to pave the way for advancements in understanding human personality through deep learning approaches using other modalities such as EEG, GSR, and PPG. © 2024 IEEE.

关键词： Contrastive Learning

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Families of Multidimensional Periodic Arrays with Optimal Low Cross-Correlation 1st

Families of Multidimensional Periodic Arrays with Optimal Lo...

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1st International Symposium on Intelligent Computing and Networking, ISICN 2024

作者： Bolaños, César Bollman, Dorothy Doctoral Program in Computing and Information Sciences and Engineering University of Puerto Rico at Mayagüez Mayagüez00680 Puerto Rico Department of Mathematical Sciences University of Puerto Rico at Mayagüez Mayagüez00680 Puerto Rico

ISBN: (纸本)9783031674464

We construct new families of multidimensional periodic arrays that can be used for digital watermarking videos and images. Each member of each family is composed of columns of cyclic shifts of a Sidelnikov sequence in which the shifts are given by a multidimensional m1×m2×…×mn "grid" that is determined by applying a logarithmic quadratic map to the elements of a direct product Zm1×Zm2×…×Zmn. These arrays have peak auto-correlation on the order of p2l and non-peak auto- and cross-correlation on the order of pl, where l≥2 and m1m2…mn=pl-1, thereby improving the peak auto-correlation to nonpeak auto- and cross-correlations of other known constructions. Additionally, we show that the low cross-correlation values are optimal with respect to the Welch bound. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Watermarking

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A LoRaWAN Enabled Sensor-Based System for Detecting Rodent Activity 21

A LoRaWAN Enabled Sensor-Based System for Detecting Rodent A...

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21st International System-on-Chip Design Conference, ISOCC 2024

作者： Wang, Szu-Ting Wu, Shang-Sian Tseng, Kuo-Cheng Hsu, Li-Chuan Ke, Song-Min Lai, Shin-Chi National Formosa University The Doctoral Degree Program in Smart Industry Technology Research and Development Huwei Taiwan National Formosa University Dept. Automation Engineering Huwei Taiwan National Formosa University Dept. Automation Engineering & Smart Machinery Intelligent Manufacturing Research Center Huwei Taiwan

ISBN: (纸本)9798350377088

This study presents the design and implementation of a sensor-based system for detecting rodent activity. The proposed system utilizes infrared (IR) receivers for detecting rodent presence and can incorporate IP cameras to capture intruder images. Data collected by sensor nodes are transmitted to a database via Wi-Fi for web access. The system employs a reflective-type IR sensor comprising an emitter and a receiver aligned in the same direction to discern approaching or receding objects. Power-efficient operation is ensured through the use of the Heltec Wireless Stick Lite MCU and LoRa transceivers for data transmission. Results demonstrate the system's effectiveness in monitoring rodent behavior, with power consumption averaging 67.4mA to 69.5mA, supported by two 18650 batteries for up to 4 days of continuous operation. During the 18-day experiment duration, a total of 1,453 instances were recorded. © 2024 IEEE.

关键词： Wi-Fi

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Evaluation of Enrichment in Ontology-based Knowledge Management System

Evaluation of Enrichment in Ontology-based Knowledge Managem...

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2023 International Conference on Smart-Green Technology in Electrical and Information Systems, ICSGTEIS 2023

作者： Dessy Hariyanti, Ni Kadek Linawati, Linawati Made Oka Widyantara, I. Putra Sastra, Nyoman Adisusilo, Anang Kukuh Wayan Budi Sentana, I. Dewa Made Bayu Atmaja Darmawan, I. Universitas Udayana Study Program of Doctoral Engineering Science Indonesia Universitas Udayana Electrical Engineering Department Indonesia Universitas Wijaya Kusuma Surabaya Engineering Department Surabaya Indonesia Macquarie University School of Computing SydneyNSW Australia

ISBN: (纸本)9798350382822

Ontology is an organization of knowledge that can represent knowledge in a structured manner. An ontology-based Knowledge Management System is a system that combines elements of knowledge management with the application of ontology as a knowledge base. Meanwhile, knowledge is dynamic and continues to develop all the time, giving rise to new knowledge. Therefore, the ontology must be updated regularly through ontology enrichment to meet adequate knowledge requirements. Ontology enrichment is carried out to ensure that the ontology remains relevant and responsive to developments in its knowledge domain. However, there are no standard stages in implementing enrichment in ontology-based Knowledge Management systems. Therefore, this research conducted a literature review to determine when and how to apply enrichment in ontology development. Data was obtained from related journals in 2018 - 2023. The method used in this research is the Systematic Literature Review method to systematically identify, review, evaluate, and interpret all available research in the area of interest with specific relevant research questions. The research results show that the ontology enrichment procedure generally includes preprocessing stages, relation extraction, and enrichment processes. Ontology enrichment is generally applied during the development of a new ontology as part of the ontology development cycle and on existing ontologies, which are a separate stage from the initial ontology development cycle. Based on these findings, the researcher provides recommendations for researchers who want to use or develop new ontology enrichment methods. © 2023 IEEE.

关键词： Ontology

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Coevolution of Myoelectric Hand Control under the Tactile Interaction among Fingers and Objects

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Cyborg and Bionic Systems 2022年第1期2022卷 285-302页

作者： Yuki Kuroda Yusuke Yamanoi Shunta Togo Yinlai Jiang Hiroshi Yokoi Joint Doctoral Program for Sustainability Research Graduate School of Informatics and Engineering The University of Electro-CommunicationsTokyoJapan Department of Mechan ical and Intelligent System Engineering Graduate School of Informatics and Engineering The University of Electro Communications TokyoJapan Center for Neuroscience and Biomedical Engineering The University of Electro Communications TokyoJapan Bejing Innovation Center for Inelligent Robots and Systems BeijingChina

The usability of a prosthetic hand difers significantly from that of a real ***,the complexity of manipulation increases as the number of degrees of freedom to be controlled increases,making manipulation with biological signals extremely *** overcome this problem,users need to select a grasping posture that is adaptive to the object and a stable grasping method that prevents the object from *** previous studies,these have been left to the operating skills of the user,which is extremely difficult to *** this study,we demonstrate how stable and adaptive grasping can be achieved according to the object regardless of the user's operation *** required grasping technique is achieved by determining the correlation bet ween the motor output and each sensor through the interaction between the prosthetic hand and the surrounding stimuli,such as myoelectricity,sense of touch,and grasping *** agents of the 16 DOF robot hand were trained with the myoelectric signals of six participants,including one child with a congenital forearm ***,each agent could open and close the hand in response to the myoeletric stimuli and could accomplish the object pickup *** the tasks,the agents successfully identified grasping patterns suitable for practical and stable positioning of the *** addition,the agents were able to pick up the object in a similar posture regardless of the partiipant,suggesting that the hand was optimized by evolutionary computation to a posture that prevents the object from being dropped.

关键词： robot Objects overcome

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