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2nd IEEE International Conference on Image Processing and Computer Applications, ICIPCA 2024

作者： Liang, Congxiao Wang, Mini Han Liu, Haoyang Chong, Kelvin K.L. Beijing Institute of Technology Center for Sport Science and Physical Education Zhuhai519000 China The Department of Ophthalmology and Visual Sciences Chinese University of Hong Kong 999077 Hong Kong The Faculty of Data Science City University of Macau Macau999078 China The Center of Big Data and Ai Zhuhai Institute of Advanced Technology Chinese Academy of Sciences Zhuhai519000 China The R&d Center of Ai and Digital Medicine Guangdong Digital Medicine Promotion Science and Technology Co. Ltd Guangdong 519000 China Guangdong Medical University Dongguan China Zhuhai Institute of Advanced Technology Chinese Academy of Sciences Zhuhai China Perspective Technology Group Zhuhai China The Faculty of Medicine Chinese University of Hong Kong Hong Kong

ISBN: (纸本)9798350360240

This research investigates the effectiveness of employing a machine learning methodology and an Explainable Artificial Intelligence (XAI) tool for the assessment of Meibomian Gland dysfunction (MGd). Utilizing resNet34, a convolutional neural network (CNN), trained on a diverse dataset comprising images depicting varying degrees of MGd severity, the machine learning approach endeavors to classify MGd severity into four distinct grades (0, 1, 2, 3) by leveraging extracted characteristic features. Findings reveal comparable accuracy between resNet34 and the XAI tool, with resNet34 achieving a slightly lower accuracy of 99.1% in contrast to the XAI tool's 99.4%. However, resNet34 demonstrates marginally higher precision and F1-score at 98.2% and 98.45%, respectively, suggesting a nuanced advantage in precision-recall equilibrium. Conversely, the XAI tool maintains a commendable precision of 97.2% and an Fl-score of 97.94%, alongside a recall of 98.7%, underscoring its effectiveness in discerning positive instances. Noteworthy is that resNet34 operates as a black-box model, providing limited interpretability, while the XAI tool emphasizes transparency by furnishing clinicians with understandable MGd grading elucidations derived from meibomian gland segmentation and atrophy analysis. This transparency enhances trust and comprehension, which are integral for clinical acceptance and decision-making. Furthermore, the utilization of XAI heatmap generation facilitates data quality enhancement, as evidenced by instances of erroneous artifact identification, emphasizing the imperative nature of artifact elimination for the refinement of MGd grading procedures. © 2024 IEEE.

关键词： Convolutional neural networks

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direct Observation of Void Nucleation and Growth in a 2-µm-Wide Cu redistribution Line during In Situ Electromigration

Direct Observation of Void Nucleation and Growth in a 2-µm-...

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International Conference on Electronics Packaging (ICEP)

作者： Chien-Lung Liang Yung-Sheng Lin Min-Yan Tsai Meng-Chun Chiu Shan-Bo Wang Chih-Pin Hung Kwang-Lung Lin Department of Materials Science and Engineering National Taiwan University of Science and Technology Taipei Taiwan Corporate R&D Advanced Semiconductor Engineering (ASE) Group Kaohsiung Taiwan Department of Materials Science and Engineering National Cheng Kung University Tainan Taiwan

ISBN: (数字)9784991191176

ISBN: (纸本)9798350385908

In this study, we reported direct observation of void nucleation and growth in a fan-out 2-µm-wide Cu redistribution line (rdL) embedded in polyimide dielectric layers using in situ scanning electron microscope (SEM) investigations. The electromigration experiment was conducted with an extremely high current density of $1.14 \times 10^r\mathrm{A}/\text{cm}^r$ under an ambient condition. Current stressing induced the nucleation, growth, and coalescence of nanovoids on grain boundaries. Nano-scale delamination at the local Cu oxide/Cu rdL interface occurred. The electromigration-induced reliability challenge correlated with the void evolution in the Cu rdL was reported for the failure behavior and mechanism.

关键词： Electromigration Grain boundaries Scanning electron microscopy Failure analysis Polyimides Packaging dielectrics

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Lamellar structured GO-Melamine nanocomposite membranes with varying d-spacing for efficient organic solvent nanofiltration (OSN)

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Journal of Membrane Science 2024年 699卷

作者： Abebe, Shalligito Habetamu TM, Subrahmanya Faye M Austria, Hannah Nayak, Smrutiranjan Setiawan, Owen Huang, Tsung-Han Hung, Wei-Song Hu, Chien-Chieh Lee, Kueir-rarn Lai, Juin-Yih Advanced Membrane Materials Research Center Graduate Institute of Applied Science and Technology National Taiwan University of Science and Technology Taipei10607 Taiwan R&D Center for Membrane Technology Chung Yuan University Chung-Li32023 Taiwan Department of Chemical Engineering and Materials Science Yuan Ze University Taoyuan32023 Taiwan

There is a lot of research being done on GO lamellar 2d membranes for separating organic solvents and dyes. These membranes are highly sought-after due to their exceptional characteristics. However, existing challenges include inadequate solvent permeability and limited dye rejection capacity due to swelling of membranes. In this study, we proposed a novel technique that employs low-pressure assisted filtration to fabricate nanocomposite membranes using GO and melamine. remarkably, these composite membranes exhibited outstanding separation performance for dyes (≥99.06 %) in organic solvents, regardless of their positive or negative charges or when present in mixtures. The optimum GO-M0.02 nanocomposite membrane exhibits impressive organic solvent flux (J), attaining a value as high as 50.8 L/m2h (acetone), which is 6.57 times greater than that of the pure GO membrane. Furthermore, these GO-Melamine nanocomposite membranes showed excellent durability against both common and harsh organic solvents, and the flux of solvents through the GO-M0.02 nanocomposite membrane remained almost unchanged even after being immersed in methanol for up to one week. Additionally, the membrane exhibited consistent solvent flux and rejection rates for methyl green during continuous filtration. These results highlight the exceptional stability and immense potential of GO-melamine nanocomposite membranes for real organic solvent nanofiltration. © 2024 Elsevier B.V.

关键词： Nanofiltration

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High performance lamellar structured graphene oxide nanocomposite membranes via Fe3O4-coordinated phytic acid control of interlayer spacing for organic solvent nanofiltration (OSN)

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Chemical Engineering Journal 2024年 495卷

作者： Abebe, Shalligito Habetamu Subrahmanya, T.M. Austria, Hannah Faye M. Nayak, Smrutiranjan Huang, Tsung-Han Setiawan, Owen Hung, Wei-Song Hu, Chien-Chieh Lee, Kueir-rarn Lai, Juin-Yih Advanced Membrane Materials Research Center Graduate Institute of Applied Science and Technology National Taiwan University of Science and Technology Taipei10607 Taiwan R&D Center for Membrane Technology Chung Yuan University Chung-Li32023 Taiwan Department of Chemical Engineering and Materials Science Yuan Ze University Taoyuan32023 Taiwan

Graphene oxide (GO), a 2d nanomaterial known for its precise molecular sieving, holds potential for Organic Solvent Nanofiltration (OSN) and wastewater treatment. However, challenges such as thin interlayer spacing, extended diffusion pathways, and susceptibility to dehydration and negative charge-induced swelling limit its separation performance. To overcome these limitations, Herein, we have fabricated novel Fe3O4 coordinated PhA intercalated GO nanocomposite membranes. Impressively, these nanocomposite membranes exhibited remarkable separation efficiency for dyes, pesticides, and pharmaceutical ingredients, addressing the drawbacks associated with pristine GO membranes and enhancing their overall performance. The optimum G10(1)/P1.5-F100µL nanocomposite membrane displayed impressive solvent permeance of 40.43, 33.45, 20.70, 16.24, and 5.6 L/m2 h bar for acetone, methanol, water, ethanol, and IPA, respectively, while maintaining a rejection rate of ≥98.97 % for the MO dye (MW = 327.33 g/mol). Furthermore, the membrane exhibited outstanding efficiency in separating tetracycline (TC) in ethanol (≥97.97 %) and Pendimethalin (PM) in water (≥99.88 %). Additionally, it demonstrated high rejection capabilities for MB (≥98 %) and Cr (≥98.78 %) in harsh dMF solvent. Importantly, the nanocomposite membrane displayed outstanding durability throughout continuous separation of Pendimethalin (PM) in a water solution over a period of 168 h. The PM separation remained nearly unchanged for the entire 168-h duration, demonstrating high mechanical strength and chemical stability. Additionally, the single nanocomposite membrane showcased high efficiency in feed change separation, successfully separating Cr in ethanol and PM in water. These results, compared to the other GO-based nanocomposite membranes, demonstrate the exceptional stability and immense potential for real OSN applications. © 2024 Elsevier B.V.

关键词： Magnetite

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A Soft, Multi-Layer, Kirigami Inspired robotic Gripper with a Compact, Compression-Based Actuation System

A Soft, Multi-Layer, Kirigami Inspired Robotic Gripper with ...

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IEEE/rSJ International Conference on Intelligent robots and Systems (IrOS)

作者： Joao Buzzatto Junbang Liang Mojtaba Shahmohammadi Saori Matsunaga rintaro Haraguchi Toshisada Mariyama Bruce A. Macdonald Minas Liarokapis Department of Mechanical and Mechatronics Engineering New Dexterity research group University of Auckland New Zealand Information Technology R&D Center Mitsubishi Electric Corporation Japan Advanced Technology R&D Center Mitsubishi Electric Corporation Japan Department of Electrical Computer and Software Engineering Centre for Automation and Robotic Engineering Science University of Auckland New Zealand

Over the last decade, a plethora of soft robotic devices have been proposed for the execution of complex grasping and dexterous manipulation tasks. Tasks requiring such increased dexterity are typically executed using fully-actuated, rigid end-effectors equipped with sophisticated sensing and controlled with complex control laws. The new class of soft robotic devices offers an alternative to the traditional end-effectors and facilitates the development of robotic grasping and manipulation solutions that are lightweight, safe to interact with, affordable, and easy to use and control. Within the class of soft robotic grippers and hands, promising recent developments were made in ultra-affordable, even disposable mechanisms based on origami and kirigami structures. This paper proposes a new kirigami-inspired robotic gripper geometry employing compression-based actuation. The compression actuation fundamentally differentiates this new design class from previous kirigami grippers, resulting in more compact robotic grippers with superior grasping capabilities. In particular, we investigate how the shapes of the internal cuts of the kirigami geometries can affect the gripper performance in terms of force exertion and grasping capabilities. A series of experiments are conducted to understand better the working principles behind this new type of kirigami grippers and experimentally validate their efficacy in the execution of complex, everyday life tasks. Further demonstrations of the gripper's capabilities include the pick-and-placing of human hair, egg yolk, and even liquids.

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Employing Multi-Layer, Sensorised Kirigami Grippers for Single-Grasp Based Identification of Objects and Force Exertion Estimation

Employing Multi-Layer, Sensorised Kirigami Grippers for Sing...

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IEEE/rSJ International Conference on Intelligent robots and Systems (IrOS)

作者： Junbang Liang Joao Buzzatto Bryan Busby ricardo V. Godoy Saori Matsunaga rintaro Haraguchi Toshisada Mariyama Bruce A. Macdonald Minas Liarokapis Department of Mechanical and Mechatronics Engineering The New Dexterity research group The University of Auckland New Zealand The Information Technology R&D Center Mitsubishi Electric Corporation Japan The Advanced Technology R&D Center Mitsubishi Electric Corporation Japan Department of Electrical Computer and Soft-ware Engineering The Centre for Automation and Robotic Engineering Science The University of Auckland New Zealand

Soft robotic devices have been popular in handling intricate grasping and dexterous manipulation tasks, serving as an alternative to conventional, rigid end-effectors. These devices are relatively simple, lightweight, and cost-effective. recently, kirigami based structures have been used to create low-cost and disposable soft robotic grippers and hands. These grippers undergo a complex post-contact reconfiguration and conform to an object's shape and size during grasping. In this paper, we explore this new class of soft robotic grippers by utilising them for single-grasp object classification and grasping force estimation. We install simplistic sensors on both the gripper and the actuation system to estimate the state of the kirigami gripper, and the collected data features are employed to train random Forest models for identifying the grasped object. The classifier trained exhibits a high accuracy of 98 % in discriminating objects of various shapes. When handling food items, the classifier achieves an accuracy of 94 %, while in classifying transparent objects, the classifier obtained again a high accuracy of 97 %. Finally, object-specific force estimation models are triggered based on the classification decision of the random Forest model to estimate the grasping force exerted by the gripper. These positive outcomes demonstrate the kirigami based robotic gripper's potential for object classification in a variety of circumstances, particularly where vision systems are not available or not reliable.

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Compact, Hybrid Slot-dipole-Monopole Wi-Fi 7 Antenna for Slim-Bezel Notebook Applications

Compact, Hybrid Slot-Dipole-Monopole Wi-Fi 7 Antenna for Sli...

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Asia-Pacific Conference on Microwave

作者： M. Idrees Magray Saou-Wen Su Jui-Han Lu Antenna Design Department Advanced EM & Wireless Comm R&D Center ASUSTek Computer Inc Taipei Taiwan Department of Electronic Communication Engineering National Kaohsiung University of Science and Technology Kaohsiung Taiwan

A hybrid slot-dipole-monopole antenna is demonstrated that is suitable for Wi-Fi 7 notebook applications. The design consists of an open slot, a coupled strip resonator, and a T-shaped feed, created on the two layers of the substrate. The open slot is able to operate in the 2.4 GHz (2400-2484 MHz) wireless local area network (WLAN) band. The coupled strip resonator and the T-shape feed together generate two resonant dipole-monopole modes that cover the 5 GHz (5150-5825 MHz) and 6 GHz (5925-7125 MHz) WLAN bands respectively. The design is simple in structure and occupies a compact size of $4.6 \mathrm{~mm} \times 15 \mathrm{~mm}$ (approximately $0.037 \lambda \times 0.120 \lambda$ at 2.4 GHz), which can find practical applications in slim-bezel notebook computers.

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Wear resistance,hardness,and microstructure of carbide dispersion strengthened high-entropy alloys

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Journal of Central South University 2022年第11期29卷 3529-3543页

作者： A.Hegazy KHALLAF M.BHLOL O.M.dAWOOd Omayma A.ELKAdY Mechanical Engineering Department Egyptian Academy for Engineering and Advanced Technology(EAE&AT)Affiliated to Ministry of Military ProductionCairoEgypt Mechanical Engineering Department Faculty of EngineeringUniversity of HelwanHelwanCairo 11792Egypt Powder Technology Department Central Metallurgical R&D InstituteP.O.87Helwan11421 CairoEgypt

(CrFeCoNi)high-entropy alloy(HEA)was reinforced with various contents of WC particles from 5 wt%to 20 wt%,and prepared by powder *** mixed powders were compacted under 700 MPa and then sintered at 1200℃in a vacuum furnace for 90 ***,phase composition,and microstructure of sintered samples were ***,compressive strength,wear resistance and coefficient of thermal expansion(CTE)were *** results revealed the improvement of the density with the addition of *** results revealed the formation of new FCC chromium carbide *** electron microscopy(SEM)results show a good distribution of the carbide phases over the alloy *** CTE was decreased gradually by increasing the WC *** strength was improved by WC addition.A mathematical model was established to predict the behavior of the strength of the HEA *** hardness of the investigated HEAs was increased gradually with the increasing of WC content about 20.35%.Also,the wear rate of HEA without WC is 1.70×10^(−4)mm^(3)/(N·m),which is approximately 4.5 times the wear rate of 20 wt%WC HEA(3.81×10^(−5)mm^(3)/(N·m)),which means that wear resistance was significantly improved with the increase of WC content.

关键词： high-entropy alloy powder metallurgy micro-hardness microstructure wear resistance compression regression analysis

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Metamaterial-Inspired Antenna for Wi-Fi 7 Operation in Wireless Local Area Network Bands

Metamaterial-Inspired Antenna for Wi-Fi 7 Operation in Wirel...

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Asia-Pacific Conference on Microwave

作者： Saou-Wen Su M. Idrees Magray Jui-Han Lu Antenna Design Department Advanced EM & Wireless Comm R&D Center ASUSTek Computer Inc Taipei Taiwan Department of Electronic Communication Engineering National Kaohsiung University of Science and Technology Kaohsiung Taiwan

A metamaterial-inspired antenna is proposed that utilizes an artificial mu-negative (MNG) transmission line (TL) to incorporate the zeroth-order resonance (ZOr) into WiFi 7 operation in the 2.4/5/6 GHz wireless local area network (WLAN) bands. The antenna comprises a meta-structured loop with periodically loaded series interdigital capacitors and a parasitic shorted strip, all formed on the same substrate layer in a coplanar structure. The 2.4 and 6 GHz WLAN bands are produced by the parasitic strip and the close-form loop strip, respectively, which are of typical right-handed antennas. The 5 GHz band caused by the ZOr mode, where the permeability is zero, can be adjusted by the series capacitance in the unit cell. The total antenna size is 5.4 mm $\times 19.6$ mm only. In this work, the design applied to notebook computers for the upcoming Wi-Fi 7 operation is also demonstrated. Both numerical and experimental results validate our proof-of-concept design.

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Visualizing the Battery degradation through Non-destructive Methods on Predicting the State of Health (SoH) of Second Life Batteries (SLB)

Visualizing the Battery Degradation through Non-destructive ...

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Advances in Electrical, Electronics and Computational Intelligence (ICAEECI), International Conference on

作者： Vignesh S Jeyraj A-L Selvaraj Hang Seng Che Kok Soon Tey HiCoE UMPEDAC Level 4 WISMA R&D Faculty of Institute for Advanced Studies Universiti Malaya Kuala Lumpur Malaysia HiCoE UMPEDAC Level 4 WISMA R&D Universiti Malaya Kuala Lumpur Malaysia Department of Computer System & Technology Universiti Malaya Kuala Lumpur Malaysia

Ever since the vehicle electrification era had started, lithium-ion batteries become the sole fore runner in powering the Electric Vehicles (EV). Vehicle electrification contributed vastly in public transportation which further promoted the surge in usage of EV in recent days. The EVs are deployed in different climatic environment, and user defined handling which lead the battery to undergo non-uniform degradation as it undergoes a series of charge and discharge cycles. State of Health (SoH) is an indicator to quantify the battery health. When the SoH of lithium-ion batteries deployed in EV application reaches 80% of its nominal capacity, then the battery is said to be reached its End of Life (EoL) in EV application. Such batteries, when translated in to second life applications, its SoH estimation at second life is vital information on defining the operating points of the Second Life Battery (SLB). The SoH estimation of SLB is expected to be non-destructive in nature. This article deals with the SoH estimation of pouch cells that underwent lab level testing for 100 charge and discharge cycles. The battery degradation from cycle 1 to 100 is visualized through Incremental Capacity differential Voltage (ICdV) method. Based on the degradation modes observed in the battery, the Health Indicators (HI) were summarized and the insights on dominant degradation phase can be visualized through bifurcating the operating voltage of the cell in to a particular zones of interest. This voltage band in particular, caters preliminary insights regarding the battery degradation and the same information can be translated to second life thereby reducing the cycle life testing time and efforts.

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