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Emission characteristics of naphthalene from ship exhausts under global sulfur cap

science of the Total Environment 2023年 902卷 166172页

作者： Yeh, Chin-Ko Tzu, Fu-Ming Chen, Po-Yang Shen, Hsueh-Chen Yuan, Chung-Shin Lin, Chitsan Pu, Han-Pin Ngo, Huu Hao Bui, Xuan-Thanh Department of Marine Engineering National Kaohsiung University of Science and Technology Kaohsiung805301 Taiwan Department of Marine Environmental Engineering National Kaohsiung University of Science and Technology Kaohsiung811213 Taiwan Ph.D. Program in Maritime Science and Technology National Kaohsiung University of Science and Technology Kaohsiung811213 Taiwan Institute of Environmental Engineering National Sun Yat-sen University Kaohsiung804201 Taiwan School of Civil and Environmental Engineering University of Technology Sydney SydneyNWS2007 Australia 268 Ly Thuong Kiet Street District 10 Ho Chi Minh City Viet Nam Linh Trung ward Ho Chi Minh City700000 Viet Nam

The global sulfur limit regulation mandates the use of 0.5 % low sulfur fuel oil (LSFO) to reduce emissions of sulfur oxides (SOx), nitrogen oxides (NOx), and particulate matter (PM). However, the addition of naphthalene (Nap) to LSFO to stabilize its quality has led to an increase in polycyclic aromatic hydrocarbons (PAHs), with Nap being the main pollutant. This study investigates the effects of Nap in ship exhaust by analyzing the emission concentrations of volatile organic compounds (VOCs) and Nap in the exhaust of 16 ships, including 2 container ships, 6 bulk carriers, 1 tanker, 2 ferries, 3 fishing vessels, and 2 harbor crafts, based on USEPA method TO-15A. The results show that the percentage of Nap emissions in the exhaust gases of the 16 ship engines ranged from 77 % to 97 % of the total volatile organic compound (TVOC). The Nap concentration in the exhaust of fishing vessels, tanker, and harbor craft exceeded the occupational exposure limit of 50,000 μg/m3, with fishing vessels having the highest TVOC and Nap concentrations. The enhanced Nap emission in the air degrades air quality in port cities and poses an obvious potential public health risk. While the benefits of the global sulfur cap are being secured, additional efforts should be made to reduce the undetected side effects. Alternative stabilizers of LSFO should be considered, or Nap emission control should be boosted to mitigate the potential negative impact on harbor air quality. © 2023 Elsevier B.V.

关键词： Air quality

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doping ratio between ZnO/MgO tunes antimicrobial, osteogenic, and anti-osteoclast activity of CaO-MgO-ZnO-SiO2 bioactive glass-ceramics

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Ceramics International 2025年

作者： Hung, Guan-Yi Xia, Yun-Ze Chen, Pin-Yi Lai, Po-Liang Feng, Kuei-Chih Tu, Chi-Shun Cheng, I.-C. Wang, Chi-Yun International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City24301 Taiwan Department of Physics Fu Jen Catholic University New Taipei City24205 Taiwan Department of Mechanical Engineering Ming-Chi University of Technology New Taipei City24301 Taiwan Bone and Joint Research Center Department of Orthopaedic Surgery Chang Gung Memorial Hospital Taoyuan City33305 Taiwan College of Medicine Chang Gung University Taoyuan City33305 Taiwan Department of Mechanical Engineering Chang Gung University Taoyuan City33305 Taiwan Research Center for Intelligent Medical Devices Ming Chi University of Technology New Taipei City243303 Taiwan

Limitations such as donor site morbidity hamper autologous bone grafts. On the other hand, allogeneic grafts, sourced from cadavers, pose risks of viral transmission and rejection. While hydroxyapatite is a prevalent synthetic graft material, antibiotic-laden fillers addressing infection face challenges with antibiotic-resistant pathogens, driving the emergence of nonantibiotic materials to combat persistent bone infections. Bioactive glass is a potential bone void filler superior to hydroxyapatite. Thus, to improve the antibacterial efficacy and bioactivity, we adjusted the doping ratio of the novel CaO-(1-x) MgO-(x) ZnO-SiO2 glass-ceramics (x = 0, 0.25, 0.50, 0.75, 1). Using XRd, we found a typical amorphous structure alongside polycrystalline diopside (CaMgSi2O6), hardystonite (Ca2ZnSi2O7), and petedunnite (CaZnSi2O6) formations. Raman spectroscopy revealed the silicate-glass matrix structure in all the Zn(100x) glass-ceramics and confirmed that the Zn ions replaced the Mg ions. Zn-doped glass-ceramics promoted apatite layer formation and had greater antibacterial efficacy against E. coli and S. aureus. Zn25 glass-ceramic were biocompatible with L929 and MC3T3-E1 cells. Furthermore, Zn25 glass-ceramic promoted bone cell mineralization and reduced osteoclast formation without affecting ALP activity. In vivo, the Zn25 glass-ceramic exhibited greater osteointegration ability than the HAP and Zn0 glass-ceramic. Taken together, the present study demonstrated that bioactive glass-ceramics with a doping ratio between ZnO and MgO (25:75) can enhance antibacterial and osteogenic activity while impeding osteoclastogenic activity. © 2025

关键词： Escherichia coli

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CompressedMediQ: Hybrid Quantum Machine Learning Pipeline for High-dimensional Neuroimaging data

CompressedMediQ: Hybrid Quantum Machine Learning Pipeline fo...

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Acoustics, Speech, and Signal Processing Workshops (ICASSPW), IEEE International Conference on

作者： Kuan-Cheng Chen Yi-Tien Li Tai-Yu Li Chen-Yu Liu Po-Heng Henry Lee Cheng-Yu Chen Department of Electrical and Electronic Engineering Imperial College London London UK Centre for Quantum Engineering Science and Technology (QuEST) Imperial College London London UK Translational Imaging Research Center Taipei Medical University Hospital Taipei Taiwan Research Center for Neuroscience Taipei Medical University Taipei Taiwan Ph.D. Program in Medical Neuroscience College of Medical Science and Technology Taipei Medical University Taipei Taiwan National Center for High-Performance Computing NARlabs Hsinchu Taiwan Graduate Institute of Applied Physics National Taiwan University Taipei Taiwan Department of Medical Imaging Taipei Medical University Hospital Taipei Taiwan Department of Radiology National Defense Medical Center Taipei Taiwan Department of Radiology School of Medicine College of Medicine Taipei Taiwan

ISBN: (数字)9798331519315

ISBN: (纸本)9798331519322

This paper introduces CompressedMediQ, a novel hybrid quantum-classical machine learning pipeline specifically developed to address the computational challenges associated with high-dimensional multi-class neuroimaging data analysis. Standard neuroimaging datasets, such as large-scale MRI data from the Alzheimer’s disease Neuroimaging Initiative and Neuroimaging in Frontotemporal dementia, present significant hurdles due to their vast size and complexity. CompressedMediQ integrates classical HPC nodes for advanced MRI pre-processing and Convolutional Neural Network (CNN)-PCA-based feature extraction and reduction, addressing the limited-qubit availability for quantum data encoding in the NISQ era. This is followed by Quantum Support Vector Machine (QSVM) classification. By utilizing quantum kernel methods, the pipeline optimizes feature mapping and classification, enhancing data separability and outperforming traditional neuroimaging analysis techniques. Experimental results highlight the pipeline’s superior accuracy in dementia staging, validating the practical use of quantum machine learning in clinical diagnostics. despite the limitations of NISQ devices, this proof-of-concept demonstrates the transformative potential of quantum-enhanced learning, paving the way for scalable and precise diagnostic tools in healthcare and signal processing.

关键词： Neuroimaging Support vector machines Quantum computing Accuracy Magnetic resonance imaging Pipelines Machine learning Medical services Signal processing Standards

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Optical sensor for dissolved ammonia by embedding eosin Y in cellulose acetate and silicone rubber via the phase inversion method

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Microchemical Journal 2025年 213卷

作者： Putro, dimas Trio Sari, desy Purnama Chu, Cheng-Shane International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology Taishan Dist. New Taipei City 24301 Taiwan Department of Mechanical Engineering Ming Chi University of Technology Taishan Dist. New Taipei City 24301 Taiwan Research Center for Intelligent Medical Devices Ming Chi University of Technology Taishan Dist. New Taipei City 24301 Taiwan

This study presents the phase inversion method for fabricating a new optical sensing membrane designed for dissolved ammonia detection. Eosin Y was embedded into composite materials of cellulose acetate (CA) and silicone rubber to enhance optical performance and modify the membrane structure. Sensing performance was evaluated using luminescence quenching, which involved measuring changes in both intensity and wavelength. The fabricated membrane exhibited a microporous structure with pore diameters ranging from 1 to 10 µm, a quenching response (I₀/I₄₀₀) of 15.15, a response time (↓t₉₀) of 53 s, and effective detection at a concentration of 400 mM, a room temperature (20–25 °C), and ph 6.02, with sensing response slightly decreasing at elevated temperatures (up to 50 °C) and at ph 3.17 and 9.29. The nonlinear quenching response plot was converted into a linear form using the decibel (dB) formula, significantly improving linearity (R² = 0.9862). The membrane also exhibited excellent selectivity and the ability to detect in both gas and dissolved phases. Additionally, the sensing mechanism was investigated, revealing a combination of static and dynamic quenching, which led to an intensity decrease and a bathochromic shift of 16.56 nm. These findings highlight the potential of the developed optical sensor for rapid and highly selective ammonia monitoring in various environments. © 2025 Elsevier B.V.

关键词： Bathochromic shift dissolved ammonia detection Eosin Y Optical sensing membrane phase inversion method

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Curricular Structure for Teaching Ethical and Professional Conduct in Optics and photonics

Curricular Structure for Teaching Ethical and Professional C...

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2021 Education and Training in Optics and photonics Conference, ETOP 2021

作者： Kuebler, Stephen M. Beever, Jonathan Pinkert, Laurie CREOL College of Optics and Photonics OrlandoFL32816 United States Chemistry Department OrlandoFL32816 United States Materials Science and Engineering Center for Ethics OrlandoFL32816 United States Department of Philosophy OrlandoFL32816 United States Texts and Technology Ph.D. Program OrlandoFL32816 United States

A full course focused on ethics and professional practice has been developed to complement technical coursework and provide comprehensive training for engineers studying optics. Related frameworks for ethical encultur... 详细信息

ISBN: (纸本)9781557528209

关键词： Personnel training

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How 5G Applications are Reshaping the Commercial district: the Relevance of Technologies to Consumer Experiences

How 5G Applications are Reshaping the Commercial District: t...

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IEEE International Conference on Consumer Electronics-Taiwan (ICCE-TW)

作者： Chia-Yi Liao Tien-Yin Chou Chih-Chung Kao Ph.D. Program for Infrastructure Planning and Engineering Feng Chai University Taichung Taiwan R.O.C College of Construction and Development Feng Chai University Taichung Taiwan R.O.C Chairman of the Board Exceed Strategic Consultant Co. Ltd Taichung Taiwan R.O.C

ISBN: (数字)9798350386844

ISBN: (纸本)9798350386851

5G (fifth generation mobile networks) will bring higher capacity, data rates, lower latency, and better service quality. This will bring new opportunities for consumer electronics and shopping areas, making consumer electronics more intelligent, digitalized, and immersive. It will drive the development of new applications and change the design and manufacturing of consumer electronic devices. This study will explore the introduction of innovative 5G service applications, such as high-definition and ultra-low-latency live streaming, augmented reality (AR), and various digital platform constructions, to promote the development of shopping areas. It aims to assist in industry transformation for shopping area development by providing personalized recommendations and discounts through Online Merge Offline (OMO) integrated virtual and physical experiential marketing services. This allows customers to try products in virtual environments.

关键词： Industries 5G mobile communication Statistical analysis Extended reality Virtual environments Museums Manufacturing

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Intelligent films of marine polysaccharides and purple cauliflower extract for food packaging and spoilage monitoring

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Carbohydrate Polymers 2023年 299卷

作者： Huang, Han-Lun Tsai, I-Lin Lin, Chi Hang, Yu-Hao Ho, Yi-Cheng Tsai, Min-Lang Mi, Fwu-Long Department of Food Science National Taiwan Ocean University Keelung20224 Taiwan Department of Biochemistry and Molecular Cell Biology School of Medicine College of Medicine Taipei Medical University Taipei11031 Taiwan Graduate Institute of Medical Sciences College of Medicine Taipei Medical University Taipei11031 Taiwan Department of Bioagricultural Science National Chiayi University Chiayi60004 Taiwan Ph.D. Program of Agriculture Science National Chiayi University Chiayi60004 Taiwan Graduate Institute of Nanomedicine and Medical Engineering College of Biomedical Engineering Taipei Medical University Taipei11031 Taiwan

In this study, metalloanthocyanin-inspired, biodegradable packaging films were developed by incorporating purple cauliflower extracted (PCE) anthocyanins into alginate (AL)/carboxymethyl chitosan (CCS) hybrid polymer matrices based on complexation of metal ions with these marine polysaccharides and anthocyanins. PCE anthocyanins-incorporated AL/CCS films were further modified with fucoidan (Fd) because this sulfated polysaccharide can form strong interactions with anthocyanins. Metals-involved complexation (Ca2+ and Zn2+-crosslinked films) improved the mechanical strength and water vapor permeability but reduced the swelling degree of the films. Zn2+-cross-linked films exhibited significantly higher antibacterial activity than did pristine (non-crosslinked) and Ca2+-cross-linked films. The metal ion/polysaccharide-involved complexation with anthocyanin reduced the release rate of anthocyanins, increased the storage stability and antioxidant capability, and improved the sensitivity of the colorimetric response of the indicator films for monitoring the freshness of shrimp. The anthocyanin-metal-polysaccharide complex film showed great potential as active and intelligent packaging of food products. © 2022 Elsevier Ltd

关键词： Metal ions

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Impact of occupational noise exposure on the hearing level in hospital staffs: a longitudinal study

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Environmental science and Pollution Research 2024年第16期31卷 24129-24138页

作者： Wang, Tang-Chuan Yu, You-Cheng Hsu, Alan Lin, Jia-Yi Tsou, Yung-An Liu, Chiu-Shong Chuang, Kai-Jen Pan, Wen-Chi Yang, Chin-An Hu, Sung-Lin Ho, Chien-Yi Chen, Tzu-Liang Lin, Chia-der Pai, Pei-Ying Chang, Ta-Yuan Department of Public Health College of Public Health China Medical University No. 100 Sec. 1 Jingmao Rd. Beitun Dist. Taichung406040 Taiwan Department of Otolaryngology – Head and Neck Surgery China Medical University Hsinchu Hospital No. 199 Section 1Xinglong Road Hsinchu County Zhubei City302056 Taiwan School of Medicine College of Medicine China Medical University No. 100 Sec. 1 Jingmao Rd. Beitun Dist. Taichung406040 Taiwan Master Program for Biomedical Engineering College of Biomedical Engineering China Medical University No. 100 Sec. 1 Jingmao Rd. Beitun Dist. Taichung406040 Taiwan The Ph.D. Program for Medical Engineering and Rehabilitation Science College of Biomedical Engineering China Medical University No. 100 Sec. 1 Jingmao Rd. Beitun Dist. Taichung406040 Taiwan Department of Occupational Safety and Health College of Public Health China Medical University No. 100 Section 1Jingmao Road Beitun District Taichung City406040 Taiwan Department of Public Health School of Medicine College of Medicine Taipei Medical University No.250 Wuxing St. Xinyi Dist. Taipei City110 Taiwan Institute of Environmental and Occupational Health Sciences National Yang Ming Chiao Tung University No. 155 Sec. 2 Linong St. Beitou Dist. Taipei City112304 Taiwan Department of Biomedical Imaging and Radiological Science China Medical University No. 100 Sec. 1 Jingmao Rd. Beitun Dist. Taichung406040 Taiwan Division of Family Medicine Physical Examination Center Department of Medical Research China Medical University Hsinchu Hospital No. 199 Section 1Xinglong Road Hsinchu County Zhubei City302 Taiwan

The study aimed to evaluate the impact of occupational noise on hearing loss among healthcare workers using audiometry. A longitudinal study was conducted with a six-month follow-up period in a hospital with 21 participants, divided into high-noise-exposure (HNE) and low-noise-exposure (LNE) groups. Mean noise levels were higher in the HNE group (70.4 ± 4.5 dBA), and hearing loss was measured using pure-tone audiometry at baseline and follow-up. The HNE group had significantly higher mean threshold levels at frequencies of 0.25 kHz, 0.5 kHz, 4.0 kHz, and an average of 0.5, 1, 2, and 4 kHz (all p-values © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Audition

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Fabrication of sandwich-structured capacitor containing core@shell polystyrene@graphene oxide microspheres for switchable removal of dyes from water by dielectrophoresis force

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Separation and Purification technology 2024年 331卷

作者： Chen, Wei-Liang Cheng, Chih-Chia Lu, Chien-Hsing Chen, Jem-Kun Department of Materials Science and Engineering National Taiwan University of Science and Technology 43 Sec. 4 Keelung Road Taipei 106 Taiwan Division of Gastroenterology and Hepatology Department of Internal Medicine Chung Shan Medical University Hospital Taichung City402 Taiwan Graduate Institute of Applied Science and Technology National Taiwan University of Science and Technology Taipei10607 Taiwan Department of Obstetrics and Gynecology Taichung Veterans General Hospital Taichung40705 Taiwan Institute of Biomedical Sciences Ph.D. Program in Translational Medicine and Rong-Hsing Research Center for Translational Medicine National Chung-Hsing University Taichung940227 Taiwan

Absorption rates for traditional adsorbents were predominately determined by the concentration gradient from bulk to absorbents and surface area. A novel sandwich-structured capacitor (SSC) containing adsorbents is designed to reduce the time consuming of absorption of pollutants by dielectrophoresis force (FdEP). Graphene oxide (GO) are coated on polystyrene microspheres (PSs) as the core/shell PS@GO adsorbents that were encapsulated within the SSC to treat the solution of dye-emulsified micells (dEM). The FdEP results the assembling of PS@GOs and dEMs under polarization and enhance the adsorption rate ca. 1 ∼ 2 times with polarization at 3 V and 200 kHz. Additionally, most adsorbents are recycled with secondary pollution. Only two-fifth pure water volume of the wastewater through the SSC could achieve the recycling of the adsorbents at 900 kHz. The high complex permittivity of GO coating at high frequency allows ultrafast alternative spinning of the induced dipoles in the PS@GOs facilitates desorption and hinders the re-adsorption of the dEM during the recycling of PS@GOs. The PS@GOs was reused ca. 10 times at 20 mL min−1 of flow rate through the SSC without damages between 200 and 900 kHz. The designed SSC containing PS@GOs accomplishes either reusing of adsorbents or concentrating of dyes with low secondary pollution in practice through frequency manipulation. © 2023 Elsevier B.V.

关键词： Graphene

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danceOnStage: positioning training of dancing stage performance in virtual reality

DanceOnStage: positioning training of dancing stage performa...

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IEEE International Conference on Artificial Intelligence and Virtual Reality (AIVR)

作者： Ssu-Hsuan Wu Kai-Ting Wang Chia-Chen Chiang Hsin-Yu Chang Cheng-Yun Yeh Min-Chun Hu International Intercollegiate Ph.D.Program National Tsing Hua University Hsinchu Taiwan Master of Computer Science Program National Tsing Hua University Hsinchu Taiwan Interdisciplinary Program of Electrical Engineering and Computer Science National Tsing Hua University Hsinchu Taiwan Interdisciplinary Program of Technology and Art National Tsing Hua University Hsinchu Taiwan National Tsing Hua University Hsinchu Taiwan

This research aims to create a virtual reality-based practice system that simulates real-stage performance environments, assisting amateur dancers in overcoming stage fright and practicing group choreography that is difficult to achieve during individual practice. In this study, users can engage in performance simulations within the created system using the HTC VIVE virtual reality device. Within the system, we have developed a virtual stage space system that only requires a 2m x 3.5m physical area to simulate a large virtual stage experience. Users can also simulate choreographic positioning with virtual dance partners within this system, providing amateur dancers with group dance rehearsal practice opportunities that are not feasible during solo practice. Additionally, by creating three different audience modes, we aim to help users simulate various audience scenarios they may encounter during a performance. The system includes a recording feature that captures users' simulated performances, allowing them to review their actions and receive feedback after practice.

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