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IEEE International Conference on Consumer Electronics (ICCE)

作者： Jedidah Mwaura Shunsuke Araki Muhammad Bisri Musthafa Samsul Huda Yasuyuki Nogami Graduate School of Computer Science and Systems Engineering Kyushu Institute of Technology Fukuoka Japan Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology Fukuoka Japan Graduate School of Environmental Life Natural Science and Technology Okayama University Okayama Japan Green Innovation Center Okayama University Okayama Japan

ISBN: (数字)9798331521165

ISBN: (纸本)9798331521172

Currently, there are many ongoing attempts to incorporate transfer learning into Intrusion Detection systems. Transfer learning leverages on the knowledge of previous models thus reducing training time, improving accuracy and making it possible to train new models with limited data. However, it is difficult to incorporate such a technique into IoT devices with limited computational power. In this paper, we propose a Transfer Learning TinyML-based IDS framework with feature selection to be implemented on a microcontroller for detecting attacks on IoT devices. To implement the proposal, we leveraged knowledge achieved from our previous DDoS attack detection model to create a new transfer learning framework that could detect various IoT attacks such as malware attacks and zero-day attacks. To test the transfer learning framework, we trained it using two separate sets of datasets each containing different attacks. After each training, we evaluated the original model, converted it into a format compatible with a microcontroller and evaluated it further. The TL TinyML-based framework was evaluated based on its accuracy, model sizes and average inference times. As the results confirmed, the framework performed well and can successfully be implemented on a microcontroller without depleting its resources.

关键词： Training Accuracy Microcontrollers Computational modeling Transfer learning Intrusion detection Feature extraction Malware Data models Internet of Things

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The Multiple Determinants of Infection Prevention and Control Practices in Nursing Homes: A Scoping Review

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Journal of the American Medical Directors Association 2025年第6期26卷 105593页

作者： Fujimoto, Kanako Utsumi, Momoe Swa, Toshiyuki Furuya, Aoi Ikuji, Ayumi Nakanishi, Ayami Harada, Nahoko of Interdisciplinary Science and Engineering in Health Systems Okayama University Okayama Okayama Japan of Health and Nursing Sciences Kyoto Prefectural University of Medicine Kyoto Kyoto Japan Division of Health Sciences of Medicine The University of Osaka Osaka Suita Japan Department of Nursing Ikeda Municipal Hospital Osaka Ikeda Japan Department of Nursing University Hospital Kyoto Prefectural University of Medicine Kyoto Kyoto Japan Faculty of Interdisciplinary Science and Engineering in Health Systems Okayama University Okayama Okayama Japan

Objectives: To map the barriers and facilitators influencing infection prevention and control (IPC) practices in nursing homes (NHs) from a behavior change perspective and to identify research gaps. Design: Scoping review using the Joanna Briggs Institute methodology. Setting and Participants: NHs for older adults and health care workers in NHs. Methods: We conducted database searches in March 2022 and updated them in November 2024, including additional sources from citation tracking and reference list checks. We analyzed barriers and facilitators using the Theoretical Domains Framework (TDF) and the Capability, Opportunity, and Motivation–Behavior (COM-B) model. Results: Of 1591 identified records, 54 reports published between 2003 and 2024 met our inclusion criteria. The analysis identified 101 determinants (25 in Capability, 46 in Opportunity, and 30 in Motivation within the COM-B model) categorized into 36 categories and 16 themes as barriers and facilitators. The most frequently mentioned barriers were related to the “Environmental context and resources” domain of the TDF. Relatively few reports addressed the determinants of the TDF domain classified within the Motivation area of the COM-B model. Although many facilitators were identified in this area, including beliefs, intentions, and goals, they were coded based on limited descriptions. Conclusions and Implications: This review provides a detailed mapping of the barriers and facilitators to IPC in NHs based on existing literature. It demonstrates the complexity of sustaining IPC practices, influenced by multiple determinants. Although Motivation may impact IPC adherence, its determinants remain insufficiently studied, indicating a research gap. Further research is needed to explore these determinants and understand how Motivation interacts with other factors in IPC implementation. © 2025 The Author(s)

关键词： behavior change health care workers Infection prevention and control long-term care facilities nursing homes older adults

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Analysis of synchronized behaviour of two metronomes: experimental verification

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SICE Journal of Control, Measurement, and System Integration 2021年第1期14卷 291-299页

作者： Izumi, Shinsaku Faculty of Computer Science and Systems Engineering Okayama Prefectural University Okayama Japan

In this paper, we experimentally evaluate the performance of a method for theoretically analysing the synchronized behaviour of two metronomes on a hanging plate using the describing function approach, proposed in our previous work. This is because the performance evaluation for real systems is important for practical application, but it was not conducted previously. By applying the analysis method to an experimental system with real metronomes, we demonstrate that the analysis results similar to experimental ones are obtained even though there are some approximations associated with the use of the describing function approach. This indicates that our analysis method is applicable to the synchronized behaviour of real metronomes. © 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group, on behalf of the Society of Instrument and Control Engineers.

关键词： Synchronization

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On the generalized derivations of bimodules

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Frontiers of Mathematics in China 2017年第1期12卷 135-142页

作者： Hiroaki KOMATSU Faculty of Computer Science and Systems Engineering Okayama Prefectural University Soja 719-1197 Japan

Recently, we introduced the notion of a generalized derivation from a bimodule to a bimodule. In this paper, we give a more general notion based on commutators which covers generalized derivations as a special case. U... 详细信息

关键词： Generalized derivation separable algebra extension

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Associative memories in cellular neural networks using a singular value decomposition

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ELECTRONICS AND COMMUNICATIONS IN JAPAN PART III-FUNDAMENTAL ELECTRONIC science 1997年第1期80卷 59-68页

作者： Kawabata, H Zhang, Z Kanagawa, A Takahashi, H Kuwaki, H Faculty of Computer Science and System Engineering Okayama Prefectural University Soja Japan 719-11 Faculty of Computer Science and System Engineering Okayama Prefectural University Soja Japan 719-11 Faculty of Computer Science and System Engineering Okayama Prefectural University Soja Japan 719-11 Faculty of Computer Science and System Engineering Okayama Prefectural University Soja Japan 719-11 Faculty of Computer Science and System Engineering Okayama Prefectural University Soja Japan 719-11

Using various templates, many applications of cellular neural network (CNN), such as a feature extraction, an edge detection and a pattern classification have been considered. In a Hopfield network, an image to be stored corresponds to the minimum value of the energy of the network. However, in CNN, an image corresponds to the equilibrium state of a differential equation. A synthesis procedure for designing a CNN that will store a set of desired vectors as memory points using a singular value matrix decomposition is considered. Also analyzed here is the indeterminate phenomenon of the equilibrium states of some cells that arise in the case in which more than two similar patterns are stored for Chinese characters.

关键词： cellular neural network template matrix associative memory singular value decomposition

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Analysis of Synchronization of n Metronomes on a Hanging Plate via Describing Function Method without Assumption on Amplitudes of Metronomes 36

Analysis of Synchronization of n Metronomes on a Hanging Pla...

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第36届中国控制会议

作者： Xin Xin Yoshinori Muraoka Shinsaku Izumi Taiga Yamasaki Faculty of Computer Science and Systems Engineering Okayama Prefectural University

ISBN: (纸本)9781538629185

This paper aims to analyze the synchronization phenomena in the system consisting of n identical metronomes on a hanging plate by using the describing function(DF) method, which deals with the driving torque as a discontinuous function of the angle and angular velocity of each metronome. Different from a previous study on the synchronization of the system with the first harmonic of the angle of each metronome having the same amplitude, this paper analyzes the synchronization without any assumption on the amplitudes of n metronomes. By investigating the relation between the motion of the hanging plate(common base) and n metronomes, this paper characterizes the synchronization phenomena by the following two types of synchronization:One is the inherent synchronization, whose frequency and amplitude of all synchronized metronomes are the same as those of a single metronome on a fixed base. The other is the non-inherent synchronization, which includes the in-phase synchronization with the same amplitude, and the synchronization with different amplitudes. The analytical results are validated by numerical simulation for three metronomes about the synchronization with the same or different amplitudes.

关键词： Synchronization metronomes pendulum clocks describing function phasor representation

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New Results for Controllability and Observability of an n-Link Underactuated Planar Robot with Different Actuator-Sensor Configurations 35

New Results for Controllability and Observability of an n-Li...

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第35届中国控制会议

作者： Xin XIN Faculty of Computer Science and Systems Engineering Okayama Prefectural University

ISBN: (纸本)9781509009107

This paper concerns an n-link underactuated revolute planar robot with all the links moving in the same vertical plane and having two or more actuators and *** encoder attached to each of the actuator measures the link *** linear controllability and observability of the robot around the upright equilibrium point,where all the links are in the upright position,are *** is shown in an existing result that the robot with an actuator and an encoder is linearly controllable and observable regardless of the mechanical parameters if the first link or the last link of the robot is active(actuated) and the corresponding link angle is *** neither the first link nor the last link of the robot is active,this paper proves that the robot is linearly controllable and observable regardless of the mechanical parameters if there are two active adjacent links of(n — 2) intermediate links and the corresponding link angles are *** paper provides further insights into the linear controllability and observability of an n-link underactuated planar robot with different actuator-sensor configurations.

关键词： Multilink planar robot underactuation active link linearly controllable linearly observable upright equilibrium point

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A study of uniform approximation of plane gratings with periodic surface resistance

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IEEJ Transactions on Fundamentals and Materials 2011年第2期131卷 125-131+10页

作者： Wakabayashi, Hideaki Yamakita, Jiro Faculty of Computer Science and Systems Engineering Okayama Prefectural University 111 Kuboki Soja 719-1197 Japan

Surface-relief and index modulated dielectric gratings can be approximated by uniform equivalent permittivity when the periodicity is very small compared with a wavelength. In plane gratings, equivalent anisotropic effects of surface resistance will also appear when the periodicity is very small. In this paper, a versatile uniform approximation of equivalent resistance is proposed in the three-dimensional electromagnetic scattering problem of plane gratings with periodic surface resistance illuminated by linearly and circularly polarized incidence. Scattering properties are obtained by the equivalent resistance from our proposed uniform approximation. Scattering by plane gratings with various periodic surface resistance are analyzed rigorously by the Galerkin method based on the mixed form of current expansions in the spectral and spatial domains. By investigating the difference between the equivalent resistance and the numerical values corresponding to the surface resistance of plane gratings, the applicable condition of the uniform approximation is directly cleared. And the equivalent anisotropic effects of various resistance distributions are compared. © 2011 The Institute of Electrical Engineers of Japan.

关键词： Circular polarization

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A Study of Color Notation for Optical Properties of a Thin Layer having Multiple Reflection Peaks

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IEEJ Transactions on Fundamentals and Materials 2022年第7期142卷 341-342页

作者： Shiojiri, Toya Wakabayashi, Hideaki Arai, Tsuyoshi Inai, Hiroshi Faculty of Computer Science and Systems Engineering Okayama Prefectural University 111 Kuboki Soja719-1197 Japan

This study deals with structural coloration caused the optical properties having multiple reflection peaks. Getting the dominant wavelengths and the color coordinates in sRGB color space from the reflection by thin layer interference, we numerically consider the color notation and show the visible color. Moreover, we consider a multilayer model that applies thin layer interference. Numerical results for the multilayer model show wavelengths selectivity. © 2022 The Institute of Electrical Engineers of Japan.

关键词： Color

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Vibration ride quality of human body-wheelchair system 25

Vibration ride quality of human body-wheelchair system

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25th International Congress on Sound and Vibration 2018: Hiroshima Calling, ICSV 2018

作者： Yamamoto, Akihiro Ota, Shinichiro Okayama Prefectural University Faculty of Computer Science and Systems Engineering Okayama Japan

ISBN: (纸本)9781510868458

In the design of a human body-wheelchair system, the influence of the vibration characteristics on the ride quality should be considered to improve the ride quality. As vibrations occur during running, quality improvement focusing on such vibrations is important. In the human body-wheel chair system, since the resonance frequency differs depending on each part of the human body and the wheelchair, it is important to grasp the vibration characteristics of each part and to clarify the influence on the ride quality. The purpose of this study is to clarify the influence of vibrations of the frequency input on human vibration riding quality due to a wheelchair traveling on a road surface. In this research, frequency response experiment using a vibration generator and experiment for the evaluation of the input vibration were conducted. The influence of the input vibration on human riding quality revealed the relationship between the vibration characteristics of the human-wheelchair system and ride quality evaluation. As a result, four resonance points of the human body - wheelchair system can be confirmed, and resonance exists between 4 and 18 Hz. The primary resonance was the head and chest, the secondary resonance was the thigh and lower thigh, the tertiary resonance was the lower thigh, and the fourth resonance was the chest. Subjects feel uncomfortable due to the four resonance points during the sensory evaluation experiment. The pattern of the frequency response on the upper body and lower body is different. It is designed considering the tendency of the frequency response on the upper body and the lower body to be different. Reducing the vibration between 4 to 18 Hz, which is the range of the four frequency bands, can improve the vibration quality of the wheelchair. Copyright © (2018) by International Institute of Acoustics & Vibration. All rights reserved.

关键词： Wheelchairs

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