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Multi-Scale Dilated Convolution Network for SPECT-MPI Cardiovascular Disease Classification with Adaptive Denoising and Attenuation Correction

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 299-327页

作者： A.Robert Singh Suganya Athisayamani Gyanendra Prasad Joshi Bhanu Shrestha Department of Computational Intelligence SRM Institute of Science and TechnologyKattankulathur603203Tamil NaduIndia School of Computing Sastra Deemed to be UniversityThanjavur613401Tamil NaduIndia Department of Artificial Intelligence&Software Kangwon National UniversitySamcheok25913Republic of Korea Department of Information convergence System Graduate School of Smart ConvergenceKwangwoon UniversitySeoul01897Republic of Korea

Myocardial perfusion imaging(MPI),which uses single-photon emission computed tomography(SPECT),is a well-known estimating tool for medical diagnosis,employing the classification of images to show situations in coronary artery disease(CAD).The automatic classification of SPECT images for different techniques has achieved near-optimal accuracy when using convolutional neural networks(CNNs).This paper uses a SPECT classification framework with three steps:1)Image denoising,2)Attenuation correction,and 3)Image *** denoising is done by a U-Net architecture that ensures effective image *** correction is implemented by a convolution neural network model that can remove the attenuation that affects the feature extraction process of ***,a novel multi-scale diluted convolution(MSDC)network is *** merges the features extracted in different scales and makes the model learn the features more *** scales of filters with size 3×3 are used to extract *** three steps are compared with state-of-the-art *** proposed denoising architecture ensures a high-quality image with the highest peak signal-to-noise ratio(PSNR)value of *** proposed classification method is compared with the five different CNN models,and the proposed method ensures better classification with an accuracy of 96%,precision of 87%,sensitivity of 87%,specificity of 89%,and F1-score of 87%.To demonstrate the importance of preprocessing,the classification model was analyzed without denoising and attenuation correction.

关键词： SPECT-MPI CAD MSDC denoising attenuation correction classification

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Dragonfly Interaction Algorithm for Optimization of Queuing Delay in Industrial Wireless Networks

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Journal of Bionic Engineering 2024年第1期21卷 447-485页

作者： Sanjay Bhardwaj Da-Hye Kim Dong-Seong Kim Department of IT convergence Engineering ICT Convergence Research CenterKumoh National Institute of TechnologyGumiSouth Korea

In industrial wireless networks,data transmitted from source to destination are highly *** often leads to the queuing of the data,and poor management of the queued data results in excessive delays,increased energy consumption,and packet ***,a nature-inspired-based Dragonfly Interaction Optimization Algorithm(DMOA)is proposed for optimization of the queue delay in industrial wireless *** term“interaction”herein used is the characterization of the“flying movement”of the dragonfly towards damselflies(female dragonflies)for *** a result,interaction is represented as the flow of transmitted data packets,or traffic,from the source to the base *** includes each and every feature of dragonfly movement as well as awareness of the rival dragonflies,predators,and damselflies for the desired optimization of the queue *** features are juxtaposed as noise and interference,which are further used in the calculation of industrial wireless metrics:latency,error rate(reliability),throughput,energy efficiency,and fairness for the optimization of the queue *** analysis,convergence analysis,the Wilcoxon test,the Friedman test,and the classical as well as the 2014 IEEE Congress of Evolutionary Computation(CEC)on the benchmark functions are also used for the evaluation of DMOA in terms of its robustness and *** results demonstrate the robustness of the proposed algorithm for both classical and benchmarking functions of the IEEE CEC ***,the accuracy and efficacy of DMOA were demonstrated by means of the convergence rate,Wilcoxon testing,and ***,fairness using Jain’s index in queue delay optimization in terms of throughput and latency,along with computational complexity,is also evaluated and compared with other *** results show that DMOA exceeds other bio-inspired optimization algorithms in terms of fairness in queue delay management and average packet *** proposed a

关键词： Dragonfly Damselfly Interaction Queuing delay Optimization Industrial wireless networks

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Regulation of sleep by astrocytes in the hypothalamic ventrolateral preoptic nucleus

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Neural Regeneration Research 2025年第4期20卷 1098-1100页

作者： Jae-Hong Kim Ruqayya Afridi Il-Sung Jang Maan Gee Lee Kyoungho Suk Brain Korea 21 four KNU convergence Educational Program of Biomedical Sciences for Creative Future Talents School of MedicineKyungpook National UniversityDaeguRepublic of Korea Department of Pharmacology School of MedicineKyungpook National UniversityDaeguRepublic of Korea Department of Pharmacology School of DentistryKyungpook National UniversityDaeguRepublic of Korea Brain Science&Engineering institute Kyungpook National UniversityDaeguRepublic of Korea

Astrocytes are functionally dynamic cells that support neurons in multiple ways throughout an organism’s *** astrocytic regulation of neuronal activity has been increasingly recognized in recent *** are now recognized as playing a more complex role than mere bystanders in the central nervous ***,their role in regulating the sleep neurocircuitry is not well *** this perspective,we highlight the role of astrocytes in sleep modulation,with a particular focus on regulatory mechanisms related to the ventrolateral preoptic nucleus(VLPO)of the *** briefly discuss recent literature reporting the role of VLPO astrocytes in regulating sleep-associated behaviors.

关键词： sleep ventrolateral astrocytes

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Surface-engineered binder-free PEDOT shielded nickel magnesium selenide nanosheet arrays electrode for ultralong-life flexible quasi-solid-state hybrid supercapacitors

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Journal of Magnesium and Alloys 2023年第5期11卷 1802-1814页

作者： Edugulla Girija Shankar Amit Kumar Das Jae Su Yu Department of Electronics and Information convergence Engineering Institute for Wearable Convergence ElectronicsKyung Hee UniversityGyeonggi-do 17104Republic of Korea

Together with the development of high-performance advanced electronics,flexible supercapacitors(SCs)with tailored nanostructures have great *** deposited nanosheet arrays of nickel magnesium selenide(NixMg3-xSe4,NMgS)with high capacitance provide high potentials as a positive electrode in flexible *** further enhance their electrochemical properties and long-term cycling stability,a promising strategy of surface engineering with conducting polymer poly(3,4-ethylenedioxythiophene)(PEDOT)is *** present work proposes the construction of PEDOT shielded NMgS(P@NMgS-2)on a flexible carbon cloth substrate via a hierarchical electrodeposition *** from the synergistic effect,the P@NMgS-2 exhibits an excellent areal capacitance value of 1440 mF cm^(-2)at 4 mA cm^(-2).A novel shape-adaptable polymer gel electrolyte-assisted flexible quasi-solid-state hybrid SC(FQHSC)device constructed with P@NMgS-2 as a positive electrode and activated carbon as a negative electrode demonstrates the maximum power and energy density values of 14.13 mW cm^(-2)and 0.18 mWh cm^(-2),respectively,followed by outstanding cycling stability(∼100%capacitance retention over 50,000 cycles).Furthermore,the FQHSC device successfully powered electronic devices with no serious degradation upon bending and twisting for wearable electronic applications.

关键词： Hierarchical electrodeposition P@NMgS-2 hybrid Synergistic effect Shape-adaptable electrolyte Flexible quasi-solid-state supercapacitors

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Entire onion source-derived redox porous carbon electrodes towards efficient quasi-solid-state solar charged hybrid supercapacitor

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Journal of Materials Science & Technology 2022年第30期125卷 118-127页

Biomass-derived electrodes inherently containing redox-active species have gained extensive attention recently due to their availability,eco-friendliness,sustainability,and low *** report novel binder-free faradic surface redox onion-derived carbon positive electrode with nano regime particles by hydrothermal synthesis and Na^(+)and Cl^(−)ions diffused porous carbon negative electrode via a carbonization ***-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy confirmed the presence of oxidized sulfur and(N-6)pyridinic N-based redox groups inherently present in the as-prepared *** electrochemical analysis of the positive electrode revealed its faradic redox type of energy storage mechanism with an excellent specific capacitance of 1805 Fg^(-1) at the current density of 3 Ag^(-1) as well as appreciable long-term cycling stability(76.8%retention after 10000 charge-discharge cycles).Meanwhile,the negative electrode exhibited a maximum specific capacitance of 373 Fg^(-1) at 1 Ag^(-1) with outstanding long-term cycling stability(100.7%retention after 10000 cycles).The fabricated polyvinyl alcohol-potassium hydroxide gel electrolyte-based quasi-solid-state hybrid supercapacitor(QHSC)delivered excellent energy density and power density of 19.94 Wh kg^(-1) and 374.99 W kg^(-1),respectively with an ultralong cyclic life(102.3% retention)over 10000 ***,the QHSC was connected to a solar panel to store renewable *** charged QHSC effectively powered a speedometer,enlightening its potential application in advanced sustainable energy storage systems.

关键词： Binder-free Biomass Green source Hybrid supercapacitor Solar energy storage Faradic redox type

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PGLYRP1 protein as a novel mediator of cellular dialogue in neuroinflammation

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Neural Regeneration Research 2025年第7期20卷 1993-1994页

作者： Anup Bhusal Won-Ha Lee Kyoungho Suk Department of Pharmacology School of MedicineKyungpook National UniversityDaeguRepublic of Korea BK21 Plus KNU Biomedical convergence Program Department of Biomedical ScienceSchool of MedicineKyungpook National UniversityDaeguRepublic of Korea School of Life Sciences BK21 plus KNU Creative BioResearch GroupKyungpook National UniversityDaeguRepublic of Korea Brain Science and Engineering institute Kyungpook National UniversityDaeguRepublic of Korea

Neuroinflammation has been identified as a crucial element in several neurological disorders. Glial cells play a critical role in directing neuroinflammation, both in deleterious and beneficial ways.

关键词： inflammation considerably

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Facile one-step hydrothermal route to MSe/Mo_(3)Se_(4)(M:Zn,Mn,and Ni)-based electrode materials for ultralong-life hybrid supercapacitors

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Journal of Materials Science & Technology 2023年第25期156卷 230-240页

作者： B.N.Vamsi Krishna Obula Reddy Ankinapalli Ayyaluri Ramakrishna Reddy Jae Su Yu Department of Electronics and Information convergence Engineering Institute for Wearable Convergence ElectronicsKyung Hee UniversityYongin-siGyeonggi-do 17104Republic of Korea

Transition metal selenides have attracted great interest in electrochemical energy storage applications because of their good electrochemical activity and conductivity ***,we reported the metal molybdenum selenide(M Se/Mo_(3)Se_(4)(M:Zn,Mn,and Ni))electrode materials on their morphological and electrochemical properties by varying the metal ions via a facile hydrothermal *** effects of the structural,morphological,and surface area properties of the prepared powder materials on their electrochemical performance were *** to the hierarchical porous and unique interconnected structure,the nickel molybdenum selenide nanosheet spheres(NMS NSSs)-based electrode material delivered an excellent specific capacity value of 252 mAh g^(-1) at a current density of 1 Ag^(-1).Moreover,the optimized NMS NSSs electrode exhibited outstanding cycling stability with a capacity retention of 80%and a corresponding coulombic efficiency of 99%after 80,000 ***,a pouch-type hybrid supercapacitor(HSC)device was assembled using NMS NSSs material as a positive electrode and activated carbon as a negative electrode in 1 M aqueous KOH ***,the assembled HSC device exhibited superior energy and power density values as well as magnificent cycling *** real-time practical applications,light-emitting diodes and a digital display were powered using two series-connected HSC ***,the obtained tremendous results strongly suggest that the NiSe/Mo_(3)Se_(4) NSSs-based materials could be a promising electrode for ultralong-life energy storage applications.

关键词： Nickel selenides Molybdenum selenides Nanosheet spheres Ultralong-life cycling stability

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Ag-integrated mixed metallic Co-Fe-Ni-Mn hydroxide composite as advanced electrode for high-performance hybrid supercapacitors

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Journal of Energy Chemistry 2024年第1期88卷 579-591,I0013页

作者： Anki Reddy Mule Bhimanaboina Ramulu Shaik Junied Arbaz Anand Kurakula Jae Su Yu Department of Electronics and Information convergence Engineering Institute for Wearable Convergence ElectronicsKyung Hee UniversityYongin-siGyeonggi-do 17104Republic of Korea

Direct growth of redox-active noble metals and rational design of multifunctional electrochemical active materials play crucial roles in developing novel electrode materials for energy storage *** this regard,silver(Ag)has attracted great attention in the design of efficient *** by the house/building process,which means electing the right land,it lays a strong foundation and building essential columns for a complex ***,we report the construction of multifaceted heterostructure cobalt-iron hydroxide(CFOH)nanowires(NWs)@nickel cobalt manganese hydroxides and/or hydrate(NCMOH)nanosheets(NSs)on the Ag-deposited nickel foam and carbon cloth(i.e.,Ag/NF and Ag/CC)***,the formation and charge storage mechanism of Ag are described,and these contribute to good conductive and redox chemistry *** switching architectural integrity of metal and redox materials on metallic frames may significantly boost charge storage and rate performance with noticeable drop in *** as-fabricated Ag@CFOH@NCMOH/NF electrode delivered superior areal capacity value of 2081.9μA h cm^(-2)at 5 mA cm^(-2).Moreover,as-assembled hybrid cell based on NF(HC/NF)device exhibited remarkable areal capacity value of 1.82 mA h cm^(-2)at 5 mA cm^(-2)with excellent rate capability of 74.77%even at 70 mA cm^(-2)Furthermore,HC/NF device achieved maximum energy and power densities of 1.39 mW h cm^(-2)and 42.35 mW cm^(-2),*** verify practical applicability,both devices were also tested to serve as a self-charging station for various portable electronic devices.

关键词： Current collectors Redox-active silver Transition metal-hydroxides Electrochemical performance Hybrid supercapacitor

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Double-excited states of charge transfer band and 4f-4f in single-phase K_(3)Gd(VO_(4))_(2):Tb^(3+)/Sm^(3+) phosphors with superior sensing sensitivity for potential luminescent thermometers

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Journal of Materials Science & Technology 2021年第32期91卷 148-159页

作者： Yongbin Hua Jae SuYu Department of Electronics and Information convergence Engineering Institute for Wearable Convergence ElectronicsKyung Hee UniversityYongin-siGyeonggi-do 17104Republic of Korea

Temperature is one of the fundamental parameters for thermodynamics and its accurate detection is *** novel strategy of luminescent materials based on the fluorescence intensity ratio technique has been promised for thermometers in more practical environments to overcome the drawbacks of conventional thermometers in ***,the novel single-phase K_(3) Gd(VO_(4))_(2):Tb^(3+)/Sm^(3+) phosphors were successfully prepared,and the ~4 G_(5/2)→ ~6 H9/2(Sm^(3+)) and ~5 D_(4) → ~7 F_(5)(Tb^(3+)) transitions could be promised for luminescent ***,under the double-excited states of charge transfer band(CTB,317 nm) and 4 f-4 f(478 nm) excitations,the K_(3) Gd(VO_(4))_(2):Tb^(3+)/Sm^(3+) phosphors exhibited different concentration quenching mechanisms in energy transfer processes and also showed superior absolute sensing sensitivity(S_a) and relative sensing sensitivity(S_r).Especially,the maximum S_a and S_r values reached up to 0.568 K^(-1) and 11.24% K^(-1),respectively and the temperature resolution of the KGV:0.2 Tb^(3+)/0.01 Sm^(3+)phosphor was higher than 0.004 K under the excitation wavelength of CTB(317 nm),indicating that the double-excited states in the single-phase KGV:Tb^(3+)/Sm^(3+) phosphors with superior sensing sensitivity could be a novel candidate for potential optical thermometers.

关键词： Double-excited lines FIR technique Energy transfer Sensing sensitivity

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Exercise therapy for sarcopenia and diabetes

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World Journal of Diabetes 2023年第5期14卷 565-572页

作者： Seung-Taek Lim Sunghwun Kang institute of Sports and Arts convergence(ISAC) Inha UniversityIncheon 22212South Korea Waseda institute for Sport Sciences Waseda UniversitySaitama 341-0018Japan Laboratory of Exercise Physiology College of ArtCulture and EngineeringKangwon National UniversityChuncheon-si 24341South Korea Interdisciplinary Program in biohealth-machinery convergence engineering Kangwon National UniversityChuncheon-si 24341South Korea

Aging is characterized by the gradual deterioration of function at the molecular,cellular,tissue,and organism levels in *** typical diseases caused by changes in body composition,as well as functional decline in the human body’s organs due to aging include sarcopenia and metabolic *** accumulation of dysfunctional agingβcells with age can cause decreased glucose tolerance and *** decline has a multifactorial origin,involving lifestyle habits,disease triggers,and age-dependent biological *** reduced function ofβcells in elderly people lowers insulin sensitivity,which affects protein synthesis and interferes with muscle *** functional decrease and aggravation of disease in elderly people with less regular exercise or physical activity causes imbalances in food intake and a continuous,vicious *** contrast,resistance exercise increases the function ofβcells and protein synthesis in elderly *** this review,we discuss regular physical activities or exercises to prevent and improve health,which is sarcopenia as decreased muscle mass and metabolic disorders as diabetes in the elderly.

关键词： Elderly Diabetes Sarcopenia Resistance exercise Aging Muscle

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