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14th International Conference on Frontier Computing, FC 2024

作者： Chang, Ya-Fen Chang, Wen-Ting Tai, Wei-Liang Department of Computer Science and Information Engineering National Taichung University of Science and Technology Taichung Taiwan Bachelor Degree Program of Artificial Intelligence National Taichung University of Science and Technology Taichung Taiwan

ISBN: (纸本)9789819623945

Vehicle-to-grid (V2G) technology supporting bidirectional power transfer allows electric vehicles (EVs) to contribute and consume energy bidirectionally. Because the specific properties and requirements of V2G, Khan et al. proposed a key agreement scheme for the V2G system to ensure the security of communication between a vehicle user and the grid server. However, after analyzing Khan et al.’s scheme, we find that it suffers from some flaws such that it cannot ensure anonymity, resist impersonation attack, man-in-the-middle attack and denial-of-service attack, and work as expected. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Anonymity

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Boussinesq modeling of typhoon-induced infragravity oscillations in Hualien Harbor, eastern Taiwan: Influence of the adjacent coast

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Coastal engineering 2025年 201卷

作者： Su, Shih-Feng Ma, Gangfeng Bachelor Degree Program in Ocean Engineering and Technology National Taiwan Ocean University Keelung Taiwan DHI Water & Environment Inc. LakewoodCO80228 United States

Large infragravity-wave oscillations inside harbors are generally induced by typhoon-generated swell waves. The interaction between infragravity waves and harbor geometry can significantly amplify wave oscillations when the specific frequencies match the natural resonance frequencies of the harbor. Additionally, the neighboring coastal morphology can enhance the influx of infragravity energy. In this study, we investigated infragravity oscillations in Hualien Harbor, eastern Taiwan, during the passage of a strong typhoon. The harbor geometry comprises outer and inner basins aimed at providing a well-sheltered area. However, the extreme infragravity wave height of 2.0 m was observed at the innermost basin. A wave-resolving Boussinesq model was applied to reproduce harbor oscillations and was validated against the measured data within the port. The accuracy of the simulated significant wave heights was sensitive to the direction of the incident wave, but not that of the simulated infragravity waves. Furthermore, lower and higher resonance frequencies prevail in the inner and outer basins, respectively. The simulated spatial distributions of wave heights in the resonance periods demonstrated that these waves were present both within the harbor and along the adjacent coast. Additionally, the refraction effects of the adjacent coast were investigated through numerical simulations. Our experiments revealed that the infragravity energy generated on the adjacent coast contributed to an increase in infragravity wave heights inside the harbor up to 47 %. Moreover, we found that reducing the long-period infragravity waves significantly altered the distribution of short-period swell waves in the outer harbor basin. © 2025 Elsevier B.V.

关键词： Natural frequencies

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Mental Status Identification for Infertile Patients Using Artificial Intelligence Models 14th

Mental Status Identification for Infertile Patients Using Ar...

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14th International Conference on Frontier Computing, FC 2024

作者： Hsu, Hao-Siang Wang, Jong-Yi Chiou, Hai-Chi Wu, Fu-Hsing Lin, Chuen-Horng Chan, Yung‑Kuan Department of Computer Science and Information Engineering National Taichung University of Science and Technology Taichung404336 Taiwan Department of Health Services Administration China Medical University Taichung406040 Taiwan Bachelor Degree Program of Artificial Intelligence National Taichung University of Science and Technology Taichung404336 Taiwan Department of Management Information Systems National Chung-Hsing University Taichung402202 Taiwan

ISBN: (纸本)9789819623945

Infertile patients may be a high-risk group of mental disorder. The precise identification of the mental status of infertile patients can provide decision support to healthcare professionals and may be helpful in providing preventive measures accordingly. Rare studies focused on the mental status identification using artificial intelligence (AI) models for infertile people. This study aimed to precisely identify the mental status (anxiety and depression) of infertile patients using three AI models, the XGBoost, decision tree, and stacking models. The dataset, retrieved from a structured questionnaire survey in 2011, which included 400 infertility outpatients seeking reproductive treatments at three teaching hospitals in Taiwan was adopted for training and testing AI models. Aforementioned AI models were designed and reached identification performances of accuracy, precision, recall and area under ROC curve (AUC) equaling 0.75–0.82, 0.70–0.80, 0.64–0.72, and 0.64–0.72, respectively. The XGBoost model (accuracy = 0.82, precision = 0.80, recall = 0.72, and AUC = 0.72) outperformed or equaled the decision tree and stacking models in terms of accuracy, precision, recall, and AUC values. Designed AI models for mental status identification can be integrated into the clinical decision support system (CDSS) to provide the anxiety and depression group automatically. Accordingly, the worsening of infertility-related anxiety and depression can be prevented. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： artificial intelligence infertile patients Mental status identification stacking model XGBoost

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Corrigendum to “Boussinesq modeling of typhoon-induced infragravity oscillations in Hualien Harbor, eastern Taiwan: Influence of the adjacent coast” [Coast. Eng. 201 (2025) 104789]

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Coastal engineering 2025年

作者： Shih-Feng Su Gangfeng Ma Bachelor Degree Program in Ocean Engineering and Technology National Taiwan Ocean University Keelung Taiwan

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Exploring bus drivers' intentions to collaborate with level 4 autonomous buses: Integrating the technology acceptance model and assemblage theory

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Research in Transportation Economics 2025年 111卷

作者： Liang, Jyun-Kai Huang, Yu-Kai Lu, Chung-Cheng National Taichung University of Science and Technology Dept. of Business Administration Taichung City Taiwan National Taiwan Ocean University Bachelor Degree Program in Ocean Tourism Management Keelung City Taiwan National Yang Ming Chiao Tung University Dept. of Transportation and Logistics Management Hsinchu City Taiwan

As AI proliferates, human-AI collaboration has become necessary in many domains, not least in public transportation, where highly automated, if not fully driverless buses, require human-AI cooperation. However, existing technology acceptance models lack insight into the unique factors that influence acceptance in collaborative human-AI contexts. This study integrates the technology Acceptance Model (TAM) with Assemblage Theory to provide a comprehensive framework that does explicate key mechanisms underlying bus drivers' behavioral intentions toward Level 4 autonomous buses. Drawing upon Assemblage Theory, we conceptualize the driver and the autonomous bus as a human-machine collaborative assemblage. Perceived usefulness and perceived ease of use from TAM are modeled as antecedents, with compatibility and trust from Assemblage Theory as mediators, predicting attitude and behavioral intention. The theoretical model is examined using structural equation modeling on data collected from 719 bus drivers of four major transit companies in Taipei. Results robustly support all hypotheses, with perceived usefulness exhibiting stronger positive effects on trust and compatibility than perceived ease of use. Trust and compatibility positively influenced attitude, which strongly predicted behavioral intention to cooperate with Level 4 autonomous bus introduction. The empirical findings show TAM is enriched by the integration of Assemblage Theory concepts, extending both theories' ability to facilitate autonomous mobility human-AI collaboration. © 2025 Elsevier Ltd

关键词： Assemblage theory Autonomous bus Human-AI collaboration Public transportation technology acceptance model

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A mathematical study of a two-layer fluid flow system in the presence of a floating breakwater in front of VLFS

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Applied Mathematical Modelling 2023年第1期122卷 706-730页

作者： Barman, Koushik Kanti Chanda, Ayan Tsai, Chia-Cheng Center of Excellence for Ocean Engineering National Taiwan Ocean Unviersity Keelung Taiwan Department of Ocean Engineering and Naval Architecture Indian Institute of Technology Kharagpur West Bengal India Bachelor Degree Program in Ocean Engineering and Technology National Taiwan Ocean University Keelung Taiwan

The present study deals with the usefulness of a surface-piercing porous structure of definite width in a two-layer fluid placed at a finite distance from a floating elastic plate to mitigate the hydrodynamic response of the elastic plate. We use linear water wave theory with the eigenfunction expansion approach to develop analytical solutions to the model problem in finite water depth. Here, we identify and explore the complete parameter space associated with the problem by examining the hydrodynamic coefficients for waves in surface and internal modes, plate elevation, shear force, bending moment, wave loads on the elastic plate, flow amplitude in the plate-covered region and wave attenuation. We investigate the effectiveness of structures of various configurations and geometries on wave scattering. This study demonstrates an oscillatory pattern of wave reflection in the confined region between the plate and the breakwater. Moreover, optima in the oscillatory pattern can be observed due to the resonating interaction of waves and the breakwater-plate system. Furthermore, the research shows that an ideal width and distance between the breakwater and floating plate can be calculated while assuming an appropriate configuration of the porous structure to create a breakwater-plate system with a reasonable efficiency that possesses both reflection and dissipation properties. The design of various types of coastal structures employed in the marine environment for the reflection and dissipation of wave energy at continental shelves dominated by stratified fluid, described here as a two-layer fluid, will significantly benefit from the findings of the current study. © 2023 Elsevier Inc.

关键词： Eigenvalues and eigenfunctions

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Degenerate kernels of polyharmonic and poly-Helmholtz operators in polar and spherical coordinates

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engineering Analysis with Boundary Elements 2023年第1期148卷 137-152页

作者： Tsai, Chia-Cheng Hematiyan, M.R. Bachelor Degree Program in Ocean Engineering and Technology National Taiwan Ocean University Keelung202301 Taiwan Center of Excellence for Ocean Engineering National Taiwan Ocean University Keelung202301 Taiwan Department of Mechanical Engineering Shiraz University Shiraz71936 Iran

This paper presents the degenerate kernels for the polyharmonic and poly-Helmholtz partial differential operators in the polar and spherical coordinates. These degenerate kernels are essential if the analytical/semi-analytical solutions and the mathematical degeneracies involving these operators are conducted by the boundary integral equations. In addition, a two-dimensional creeping flow problem is considered to illustrate the use of the degenerate kernels for problems governed by coupled partial differential equations. The coupled governing equations of the creeping flow problems are converted into a biharmonic equation by using the Hörmander linear partial differential operator theory and the Cartesian partial derivatives on the harmonic and biharmonic degenerate kernels are used to obtain the degenerate kernels of two-dimensional creeping flow problems for BIE analyses. Finally, numerical experiments are conducted to study the convergence of the polyharmonic and poly-Helmholtz degenerate kernels. © 2022 Elsevier Ltd

关键词： Boundary integral equations

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Safe towing operation and navigation for towed barge improved by active AIS with solar energy

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Journal of Marine Science and technology (Japan) 2023年第4期28卷 746-757页

作者： Wang, Hui-Chiao Wu, Chien-Hsing Chang, Horng-Yi Bachelor Degree Program in Ocean Tourism Management National Taiwan Ocean University Keelung202301 Taiwan Department of Marine Engineering National Taiwan Ocean University Keelung202301 Taiwan

An Automatic Identification System (AIS) was installed on a barge. The AIS is active using solar panels with charge controller and battery to supply electric power at day time and night time. Such a novel actively AIS can offer the Speed over Ground (SOG), Course over Ground (COG), and position to tugboat for informing the Master and Officer about the sailing conditions of barge to maintain the towline tension stably and safety of navigation. The AIS also broadcasts the sailing status of barge to other ships in vicinity to maintain situational awareness of collision avoidance. Using this reliable theoretical calculation about the limit tension value of towing line with yawing motion can avoid the limit value of towline tension less than total maximum displacement of tugboat and barge. Those results contribute practical significance for improving the safety of towing operation and navigation at real time. © 2023, The Author(s), under exclusive licence to The Japan Society of Naval Architects and ocean Engineers (JASNAOE).

关键词： Collision avoidance

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A Comparative Study on Polynomial Expansion Method and Polynomial Method of Particular Solutions

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Advances in Applied Mathematics and Mechanics 2022年第3期14卷 577-595页

作者： Jen-Yi Chang Ru-Yun Chen Chia-Cheng Tsai Tainan University of Technology Tainan 71002Taiwan China Department of Harbor and River Engineering Taiwan Ocean UniversityKeelung 202301Taiwan China Bachelor Degree Program in Ocean Engineering and Technology Taiwan Ocean UniversityKeelung 202301Taiwan China Center of Excellence for Ocean Engineering Taiwan Ocean UniversityKeelung 202301Taiwan China

In this study,the polynomial expansion method(PEM)and the polynomial method of particular solutions(PMPS)are applied to solve a class of linear elliptic partial differential equations(PDEs)in two dimensions with constant coefﬁ*** the solution procedure,the sought solution is approximated by the Pascal polynomials and their particular solutions for the PEM and PMPS,*** multiple-scale technique is applied to improve the conditioning of the resulted linear equations and the accuracy of numerical results for both of the PEM and *** mathematical statements are provided to demonstrate the equivalence of the PEM and PMPS bases as they are both bases of a certain polynomial vector ***,some numerical experiments were conducted to validate the implementation of the PEM and *** results demonstrated that the PEM is more accurate and well-conditioned than the PMPS and the multiple-scale technique is essential in these polynomial methods.

关键词： Pascal polynomial polynomial expansion method polynomial method of particular solutions collocation method multiple-scale technique

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An Empirical Study on Wave Attenuation by a Dry Type of Vegetative Floating Island 34th

An Empirical Study on Wave Attenuation by a Dry Type of Vege...

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34th International ocean and Polar engineering Conference, ISOPE 2024

作者： Lan, Yuan-Jyh She, Chia-Hsuan Jui, Xiang-Lei Fan, Cheuk Yin Pai, Jen-Yen Department of Harbor and River Engineering National Taiwan Ocean University Keelung Taiwan Bachelor Degree Program in Ocean Engineering and Technology National Taiwan Ocean University Keelung Taiwan

ISBN: (纸本)9781880653784

This empirical study presents a wave attenuation model for a stationary dry type of artificial box-shaped vegetated floating island based on dimensional analysis. The dimensionless coefficients for wave reflection, transmission and wave energy dissipation can be predicted by the multiplications of several non-dimensional terms containing parameters related to the matrix medium of vegetated floating island and wave characteristics, without vegetation drag coefficient and friction factor. The empirical model was validated with experimental cases and demonstrated good correlations. Moreover, the influence of the material properties of the matrix medium composition on wave attenuation is discussed based on the validated model. © 2024 by the International Society of Offshore and Polar Engineers (ISOPE).

关键词： Energy dissipation

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