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Design and usability assessment of touchscreen interface in medical devices: a case study of a neonatal incubator

Research on biomedical engineering 2025年第1期41卷 1-6页

作者： Viviani, Carlos Alessandro Bassi Elias, Leonardo Abdala Calil, Saide Jorge Department of Electronics and Biomedical Engineering School of Electrical and Computer Engineering University of Campinas SP Campinas Brazil Center for Biomedical Engineering University of Campinas Campinas Brazil

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Component library creation and pixel array generation with micromilled droplet microfluidics

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Microsystems & Nanoengineering 2025年第1期11卷 277-287页

作者： David McIntyre Diana Arguijo Kaede Kawata Douglas Densmore Biomedical Engineering Department Boston UniversityBostonMAUSA Biological Design Center Boston UniversityBostonMAUSA Electrical and Computer Engineering Department Boston UniversityBostonMAUSA

Droplet microfluidics enable high-throughput screening,sequencing,and formulation of biological and chemical systems at the *** devices are generally fabricated in a soft polymer such as polydimethylsiloxane(PDMS).However,developing design masks for PDMS devices can be a slow and expensive process,requiring an internal cleanroom facility or using an external ***,we present the first complete droplet-based component library using low-cost rapid prototyping and electrode *** fabrication method for droplet microfluidic devices costs less than$12 per device and a full design-build-test cycle can be completed within a *** microfluidic components for droplet generation,re-injection,picoinjection,anchoring,fluorescence sensing,and sorting were built and *** devices are biocompatible,low-cost,and *** show its ability to perform multistep workflows,these components were used to assemble droplet"pixel"arrays,where droplets were generated,sensed,sorted,and anchored onto a grid to produce images.

关键词： droplet microfluidics micromilled rapid prototyping electrode integrationthis soft polymer biocompatible component library pixel array

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Price-based Demand Response Supported Three-stage Hierarchically Coordinated Voltage Control for Microgrids

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Journal of Modern Power Systems and Clean Energy 2025年第1期13卷 338-350页

作者： Bo Wang Cuo Zhang Xingying Chen Yan Xu Kun Yu Haochen Hua Zhao Yang Dong School of Electrical and Power Engineering Hohai UniversityNanjing 211100China School of Electrical and Computer Engineering The University of SydneySydneyNSW2006Australia Center for Power Engineering(CPE) School of Electrical and Electronic EngineeringNanyang Technological UniversitySingapore 639798Singapore Department of Electrical Engineering City University of Hong KongHong KongChina

Photovoltaic(PV)inverter,as a promising voltage/var control(VVC)resource,can supply flexible reactive power to reduce microgrid power loss and regulate bus ***,active power plays a significant role in microgrid voltage ***-based demand response(PBDR)can shift load demand via determining time-varying prices,which can be regarded as an effective means for active power ***,due to the different characteristics,PBDR and inverter-based VVC lack systematic ***,this paper proposes a PBDR-supported three-stage hierarchically coordinated voltage control method,including day-ahead PBDR price scheduling,hour-ahead reactive power dispatch of PV inverters,and realtime local droop control of PV *** their mutual influence,a stochastic optimization method is utilized to centrally or hierarchically coordinate adjacent two *** solve the bilinear constraints of droop control function,the problem is reformulated into a second-order cone programming relaxation ***,the concave constraints are convexified,forming a penalty convex-concave model for feasible solution ***,a convex-concave procedure-based solution algorithm is proposed to iteratively solve the penalty *** proposed method is tested on 33-bus and IEEE 123-bus distribution networks and compared with other *** results verify the high efficiency of the proposed method to achieve power loss reduction and voltage regulation.

关键词： Photovoltaic inverter voltage control demand response convex-concave procedure second-order cone programming relaxation

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Distributed Economic Control With Seamless Mode Switching for Networked-Microgrids

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IEEE Transactions on Power Systems 2024年第4期40卷 3247-3260页

作者： Yao, Weitao Wang, Yu Xu, Yan Xie, Dunjian Xi'an Jiaotong-Liverpool University Department Of Electrical And Electronic Engineering Suzhou215000 China Chongqing University School Of Electrical Engineering Chongqing400044 China Nanyang Technological University Center Of Power Engineering School Of Electrical And Electronic Engineering 639798 Singapore

A networked-microgrids (NMG) system consists of multiple individual microgrids that are connected together for increased resilience, reliability, and economy. Focusing on off-grid AC NMGs subjected to various power disturbances, this paper proposes a hierarchical control scheme with seamless mode switching, which combines the frequency(f)/voltage(V) control and economic power-sharing among MGs and distributed generators (DGs). The lower-layer aims at rapid f/V response and achieves local and autonomous economic operation among DGs by tracking the upper-layer signals. The upper layer aims at f/V regulation and real-time economic dispatch among MGs. For practical application, local and global economic operation modes are specially designed by constructing equivalent MG cost functions in upper-layer tertiary coordination. The local mode enables the MG to eliminate the steady-state impact on other MGs when an inner power disturbance occurs, while the global mode aims to minimize the total operating cost of the NMG system. The seamless switching between two modes is enabled by adjusting only one cost function parameter, thus much smoother than complex controller switching. Besides, the mode switch has a negligible effect on system small-signal stability, which is proved by the small-signal sensitivity analytical results and time-domain simulation. The proposed control scheme is verified on the OPAL-RT platform. © 1969-2012 IEEE.

关键词： Microgrids

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Constrained Networked Predictive Control for Nonlinear Systems Using a High-Order Fully Actuated System Approach

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IEEE/CAA Journal of Automatica Sinica 2025年第2期12卷 478-480页

作者： Yi Huang Guo-Ping Liu Yi Yu Wenshan Hu the School of Electrical Engineering and Automation Wuhan University IEEE the Center for Control Science and Technology Southern University of Science and Technology the Department of Electrical and Electronic Engineering The Hong Kong Polytechnic University

Dear Editor,In this letter, a constrained networked predictive control strategy is proposed for the optimal control problem of complex nonlinear highorder fully actuated (HOFA) systems with noises. The method can effectively deal with nonlinearities, constraints, and noises in the system, optimize the performance metric, and present an upper bound on the stable output of the system.

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Highly transparent anti-reflection coating enhances the underwater efficiency and stability of perovskite solar modules

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Nano Research 2024年第9期17卷 8126-8133页

作者： Feng Qian Shihao Yuan Ting Zhang Lei Wang Xiaobo Li Hualin Zheng Qien Xu Zhi David Chen Shibin Li School of Optoelectronic Science and Engineering University of Electronic Science and Technology of ChinaChengdu 610054China Department of Electrical and Computer Engineering and Center for Nanoscale Science and Engineering University of KentuckyLexingtonKentucky 40506USA

Perovskite solar cells have shown great potential in the field of underwater solar cells due to their excellent optoelectronic properties;however,their underwater performance and stability still hinder their practical *** this research,a 1H,1H,2H,2H-heptadecafluorodecyl acrylate(HFDA)anti-reflection coating(ARC)was introduced as a high-transparent material for encapsulating perovskite solar modules(PSMs).Optical characterization results revealed that HFDA can effectively reduce reflection of light below 800 nm,aiding in the absorption of light within this wavelength range by underwater solar ***,a remarkable efficiency of 14.65%was achieved even at a water depth of 50 ***,the concentration of Pb^(2+)for HFDA-encapsulated film is significantly reduced from 186 to 16.5 ppb after being immersed in water for 347 ***,the encapsulated PSMs still remained above 80%of their initial efficiency after continuous underwater illumination for 400 ***,being exposed to air,the encapsulated PSMs maintained 94%of their original efficiency after 1000 h light *** highly transparent ARC shows great potentials in enhancing the stability of perovskite devices,applicable not only to underwater cells but also extendable to land-based photovoltaic devices.

关键词： underwater photovoltaics perovskite solar modules anti-reflection coating underwater stability

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Longwave infrared multispectral image sensor system using aluminum-germanium plasmonic filter arrays Noor E

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Nano Research 2023年第7期16卷 10018-10025页

作者： Karishma Shaik Bryce Widdicombe Dechuan Sun Sam E John Dongryeol Ryu Ampalavanapillai Nirmalathas Ranjith R Unnithan Department of Electrical and Electronic Engineering University of MelbourneParkvilleVIC 3010Australia Department of Biomedical Engineering University of MelbourneParkvilleVIC 3010Australia Department of Infrastructure Engineering University of MelbourneParkvilleVIC 3010Australia

A multispectral camera records image data in various wavelengths across the electromagnetic spectrum to acquire additional information that a conventional camera fails to *** the advent of high-resolution image sensors and color filter technologies,multispectral imagers in the visible wavelengths have become popular with increasing commercial viability in the last ***,multispectral imaging in longwave infrared(LWIR,8-14μm)is still an emerging area due to the limited availability of optical materials,filter technologies,and high-resolution *** from LWIR multispectral cameras can capture emission spectra of objects to extract additional information that a human eye fails to capture and thus have important applications in precision agriculture,forestry,medicine,and object *** this work,we experimentally demonstrate an LWIR multispectral image sensor with three wavelength bands using optical elements made of an aluminum(Al)-based plasmonic filter array sandwiched in germanium(Ge).To realize the multispectral sensor,the filter arrays are then integrated into a three-dimensional(3D)printed wheel stacked on a low-resolution monochrome thermal *** prototype device is calibrated using a blackbody and its thermal output has been enhanced with computer vision *** applying a state-of-theart deep learning method,we have also reconstructed multispectral images to a better spatial ***,our work demonstrates a versatile spectral thermography technique for detecting target signatures in the LWIR range and other advanced spectral analyses.

关键词： infrared plasmonics germanium(Ge) aluminum(Al) thermal optics longwave infrared(LWIR)multispectral system

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Computational coherent Raman scattering imaging:breaking physical barriers by fusion of advanced instrumentation and data science

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eLight 2023年第1期3卷 211-229页

作者： Haonan Lin Ji-Xin Cheng Department of Biomedical Engineering Department of Electrical and Computer EngineeringPhotonics CenterBoston UniversityBostonMA 02215USA

Coherent Raman scattering(CRS)microscopy is a chemical imaging modality that provides contrast based on intrinsic biomolecular *** date,endeavors on instrumentation have advanced CRS into a powerful analytical tool for studies of cell functions and in situ clinical ***,the small cross-section of Raman scattering sets up a physical boundary for the design space of a CRS system,which trades off speed,signal fidelity and spectral *** synergistic combination of instrumentation and computational approaches offers a way to break the *** this review,we first introduce coherent Raman scattering and recent instrumentation developments,then discuss current computational CRS imaging methods,including compressive micro-spectroscopy,computational volumetric imaging,as well as machine learning algorithms that improve system performance and decipher chemical *** foresee a constant permeation of computational concepts and algorithms to push the capability boundary of CRS microscopy.

关键词： Coherent anti-Stokes Raman scattering Stimulated Raman scattering Computational imaging Hyperspectral imaging Deep learning

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Bessel beam optical coherence microscopy enables multiscale assessment of cerebrovascular network morphology and function

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Light(Science & Applications) 2024年第12期13卷 3210-3223页

作者： Lukas Glandorf Bastian Wittmann Jeanne Droux Chaim Glück Bruno Weber Susanne Wegener Mohamad El Amki Rainer Leitgeb Bjoern Menze Daniel Razansky Institute of Pharmacology and Toxicology&Institute for Biomedical Engineering Faculty of MedicineUniversity of ZurichZurichSwitzerland Institute for Biomedical Engineering Department of Information Technology and Electrical EngineeringETH ZurichZurichSwitzerland Department of Quantitative Biomedicine University of ZurichZurichSwitzerland Department of Neurology University Hospital Zurich and University of ZurichZurichSwitzerland Center for Medical Physics and Biomedical Engineering Medical University ViennaViennaAustria

Understanding the morphology and function of large-scale cerebrovascular networks is crucial for studying brain health and ***,reconciling the demands for imaging on a broad scale with the precision of highresolution volumetric microscopy has been a persistent *** this study,we introduce Bessel beam optical coherence microscopy with an extended focus to capture the full cortical vascular hierarchy in mice over 1000×1000×360μm^(3)field-of-view at capillary level *** post-processing pipeline leverages a supervised deep learning approach for precise 3D segmentation of high-resolution angiograms,hence permitting reliable examination of microvascular structures at multiple spatial *** with high-sensitivity Doppler optical coherence tomography,our method enables the computation of both axial and transverse blood velocity components as well as vessel-specific blood flow direction,facilitating a detailed assessment of morpho-functional characteristics across all vessel *** graph-based analysis,we deliver insights into vascular connectivity,all the way from individual capillaries to broader network interactions,a task traditionally challenging for in vivo *** new imaging and analysis framework extends the frontiers of research into cerebrovascular function and neurovascular pathologies.

关键词： Bessel enable function

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A Novel Linguistic Relational Fuzzy C-Means

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IEEE Access 2025年 13卷 89332-89342页

作者： Phaknonkul, Peerawich Auephanwiriyakul, Sansanee Theera-Umpon, Nipon Chiang Mai University Faculty of Engineering Department of Computer Engineering Chiang Mai50200 Thailand Chiang Mai University Biomedical Engineering and Innovation Research Center Biomedical Engineering Institute Chiang Mai50200 Thailand Chiang Mai University Faculty of Engineering Department of Electrical Engineering Chiang Mai50200 Thailand

In real-world applications, sometimes there are uncertainties in the data sets whether from the collection process or from the natural languages. Moreover, the data may come in the form of fuzzy relation. To analyze data, one might use one of popular tools, i.e., a clustering method. There are several types of clustering including clustering on information from objects themselves or clustering on a relational data. Currently, there are few researches on a fuzzy data clustering and a fuzzy relational data clustering. However, those algorithms are either defuzzifying the data or the relation of the data before implementing the clustering Therefore, in this paper, we develop a linguistic relational fuzzy C-means (LRFCM) that works with fuzzy relation of vectors of fuzzy numbers directly. The algorithm is an extension of the regular relational fuzzy C-means (RFCM). The proposed algorithm does not defuzzify fuzzy attributes beforehand. We found that the results from the LRFCM are similar to that from the RFCM. However, the results from the LRFCM can provide information that contains all the uncertainties from the inputs while the RFCM cannot. We also compare the results with the fuzzy C-means clustering. These comparisons show that the LRFCM behaves the same way as the RFCM and the FCM in partitioning the input space into clusters. © 2013 IEEE.

关键词： Fuzzy clustering

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