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Defect Detection Model Using Time Series Data Augmentation and Transformation

Computers, Materials & Continua 2024年第2期78卷 1713-1730页

作者： Gyu-Il Kim Hyun yoo Han-Jin Cho Kyungyong chung Department of Computer Science Kyonggi UniversitySuwon-si16227Korea Contents Convergence Software Research Institue Kyonggi UniversitySuwon-si16227Korea Department of Energy IT Engineering Far East UniversityEumsung-gun27601Korea Division of AI Computer Science and Engineering Kyonggi UniversitySuwon-si16227Korea

Time-series data provide important information in many fields,and their processing and analysis have been the focus of much ***,detecting anomalies is very difficult due to data imbalance,temporal dependence,and ***,methodologies for data augmentation and conversion of time series data into images for analysis have been *** paper proposes a fault detection model that uses time series data augmentation and transformation to address the problems of data imbalance,temporal dependence,and robustness to *** method of data augmentation is set as the addition of *** involves adding Gaussian noise,with the noise level set to 0.002,to maximize the generalization performance of the *** addition,we use the Markov Transition Field(MTF)method to effectively visualize the dynamic transitions of the data while converting the time series data into *** enables the identification of patterns in time series data and assists in capturing the sequential dependencies of the *** anomaly detection,the PatchCore model is applied to show excellent performance,and the detected anomaly areas are represented as heat *** allows for the detection of anomalies,and by applying an anomaly map to the original image,it is possible to capture the areas where anomalies *** performance evaluation shows that both F1-score and Accuracy are high when time series data is converted to ***,when processed as images rather than as time series data,there was a significant reduction in both the size of the data and the training *** proposed method can provide an important springboard for research in the field of anomaly detection using time series ***,it helps solve problems such as analyzing complex patterns in data lightweight.

关键词： Defect detection time series deep learning data augmentation data transformation

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The acute and chronic effect of low temperature on survival, heart rate and neural function in crayfish (<i>Procambarus clarkii</i>) and prawn (<i>Macrobrachium rosenbergii</i>) species

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Open Journal of Molecular and Integrative Physiology 2012年第3期2卷 75-86页

作者： yoo sun chung Richard M. Cooper Justin Graff Robin L. Cooper Department of Biology University of Kentucky Lexington USA

The effect of acute and chronic cold exposure on heart rate (HR) and neuronal function in crayfish Procambarus clarkii and prawns Macrobrachium rosenbergii was addressed. This is particularly important since prawn farms of this species are used for aquaculture in varied climates world wide. The success of P. clarkii as an invasive species throughout the world may in part be due to their ability to acclimate to cold and warm habitats. A set of experiments was devised to address the physiological abilities of these species in managing rapid changes to cold environments as well as their ability to respond to sensory stimuli by using behavior and a bioindex of HR. Prawns died within 2 hrs when moved from 21℃ to 5℃. Crayfish reduced their HR but survived for at least a week with this rapid change. Changes in temperature of 5℃ each week resulted in death of the prawns when 10℃ was reached. Some died at 16℃ and some lasted at 10℃ for 1 day before dying. Crayfish remained responsive to sensory stimuli and survived with either rapid or slow changes in temperature from 21℃ to 5℃. Primary sensory neurons were rapidly inhibited in prawns with an acute change to 5℃, where as in crayfish the activity was reduced but not completely inhibited. An induced sensory-CNS-motor circuit elicited activity at neuromuscular junctions in prawns and crayfish at 21℃ but with acute changes to 5℃only in crayfish was the circuit functionally intact. The ability to survive rapid environmental temperature changes will impact survival and in time the distribution of a species. The significance of these findings is that they may account, in part, for the wide ecological distribution of P. clarkii as compared to M. rosenbergii. The invasiveness of organisms, as for P. clarkii, is likely linked to the physiological robustness to acute and chronic temperature changes of habitats.

关键词： Acclimate Adaptation Crustacean Heart Rate

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A Framework for Enhancing Privacy and Anonymity in Blockchain-Enabled IoT Devices

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Computers, Materials & Continua 2024年第3期78卷 4263-4282页

作者： Muhammad Saad Muhammad Raheel Bhutta Jongik Kim Tae-sun chung Department of Artificial Intelligence Ajou UniversitySuwon443-749Korea Department of Electrical and Computer Engineering University of Utah Asia CampusIncheon21985Korea Department of Artificial Intelligence Chungnam National UniversityDaejeon34134Korea

With the increase in IoT(Internet of Things)devices comes an inherent challenge of *** the world today,privacy is the prime concern of every *** one’s privacy and keeping anonymity throughout the system is a desired functionality that does not come without inevitable trade-offs like scalability and increased complexity and is always exceedingly difficult to *** challenge is keeping confidentiality and continuing to make the person innominate throughout the *** address this,we present our proposed architecture where we manage IoT devices using blockchain *** proposed architecture works on and off blockchain integrated with the closed-circuit television(CCTV)security camera fixed at the rental *** this framework,the CCTV security camera feed is redirected towards the owner and renter based on the smart contract *** entity(owner or renter)can see the CCTV security camera feed at one *** is no third-party dependence except for the CCTV security camera deployment *** contributions include the proposition of framework architecture,a novel smart contract algorithm,and the modification to the ring signatures leveraging an existing cryptographic *** are made based on different systems’security and key management *** an empirical study,our proposed algorithm performed better in key generation,proof generation,and verification *** comparing similar existing schemes,we have shown the proposed architectures’*** now,we have developed this system for a specific area in the real ***,this system is scalable and applicable to other areas like healthcare monitoring systems,which is part of our future work.

关键词： Privacy anonymity blockchain IoT smart contracts

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Galectin 3-binding protein(LGALS3BP)depletion attenuates hepatic fibrosis by reducing transforming growth factor-β1(TGF-β1)availability and inhibits hepatocarcinogenesis

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Cancer Communications 2024年第10期44卷 1106-1129页

作者： Dae-Hwan Kim Minjeong sung Myong-Suk Park Eun-Gene sun Sumin yoon Kyung Hyun yoo Kamalakannan Radhakrishnan sung Yun Jung Woo-Kyun Bae Sang-Hee Cho Ik-Joo chung Department of Internal Medicine Division of Hematology and OncologyChonnam National University Medical SchoolHwasunSouth Korea Department of Internal Medicine Division of Hematology and OncologyChonnam National University Hwasun HospitalHwasunSouth Korea Combinatorial Tumor Immunotherapy MRC Center Chonnam National University Medical SchoolHwasunSouth Korea National Immunotherapy Innovation Center HwasunSouth Korea BioMedical Sciences Graduate Program Chonnam National UniversityHwasunSouth Korea Department of Biological Science SookmyungWomen’s UniversitySeoulSouth Korea Clinical Vaccine R&D Center Chonnam National UniversityHwasunSouth Korea Department of Biochemistry and Molecular Pharmacology Baylor College of MedicineHoustonTexasUSA

Background:Increased Galectin 3-binding protein(LGALS3BP)serum levels have been used to assess hepatic fibrosis stages and the severity of hepatocellular carcinoma(HCC).Considering the crucial role of transforming growth factor-β1(TGF-β1)in the emergence of these diseases,the present study tested the hypothesis that LGALS3BP regulates the TGF-β1 signaling ***:The expression levels of LGALS3BP and TGFB1 were analyzed in patients with metabolic dysfunction-associated steatohepatitis(MASH)and *** omics techniques,such as RNA-sequencing,transposaseaccessible chromatin-sequencing assay,and liquid chromatography-tandem mass spectrometry proteomics,were used to identify the regulatory mechanisms for the LGALS3BP-TGF-β1 *** effects of altered TGF-β1 signaling by LGALS3BP were investigated in conditional LGALS3BP-knockin and LGALS3BP-knockout ***:In patients with MASH and HCC,the levels of LGALS3BP and TGFB1 exhibited positive *** of LGALS3BP by the inflammatory cytokine interferonαin HCC cells or ectopic overexpression of LGALS3BP in hepatocytes promoted the expression levels of *** fibrosis was observed in the livers of hepatocyte-specific LGALS3BP-knockin mice,with increased TGFB1 ***3BP directly bound to and assembled integrinαV,an integral mediator required for releasing active TGF-β1 from extracellular latent complex with the rearranged F-actin *** released TGF-β1 activated JunB transcription factor,which in turn promoted the TGF-β1 positive feedback ***3BP deletion in the hepatocytes downregulated TGF-β1 signaling and CCl4 induced ***,LGALS3BP depletion hindered hepatocarcinogenesis by limiting the availability of fibrogenic TGF-β***:LGALS3BP plays a crucial role in hepatic fibrosis and carcinogenesis by controlling the TGF-β1 signaling pathway,making it a promising therapeutic target in TGF-β1-related diseases.

关键词： F-actin FAK hepatic carcinogenesis IntegrinαV Interferonα JunB LGALS3BP metabolic dysfuntion-associated steatohepatitis tensile force TGF-β1

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Feature deformation network with multi-range feature enhancement for agricultural machinery operation mode identification

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International Journal of Agricultural and Biological Engineering 2024年第4期17卷 265-275页

作者： Weixin Zhai Zhi Xu Jinming Liu Xiya Xiong Jiawen Pan sun-Ok chung Dionysis Bochtis Caicong Wu College of Information and Electrical Engineering China Agricultural UniversityBeijing 100083China Key Laboratory of Agricultural Machinery Monitoring and Big Data Application Ministry of Agriculture and Rural AffairsBeijing 100083China Department of Smart Agricultural Systems Graduate SchoolChungnam National UniversityDaejeon 34134Republic of Korea Institute for Bio-Economy and Agri-Technology(iBO) Centre for Research and Technology-Hellas(CERTH)Thessaloniki 57001Greece

Utilizing the spatiotemporal features contained in extensive trajectory data for identifying operation modes of agricultural machinery is an important basis task for subsequent agricultural machinery trajectory *** the present study,to effectively identify agricultural machinery operation mode,a feature deformation network with multi-range feature enhancement was ***,a multi-range feature enhancement module was developed to fully explore the feature distribution of agricultural machinery trajectory ***,to further enrich the representation of trajectories,a feature deformation module was proposed that can map trajectory points to high-dimensional space to form feature ***,EfficientNet-B0 was used to extract features of different scales and depths from the feature map,select features highly relevant to the results,and finally accurately predict the mode of each trajectory *** validate the effectiveness of the proposed method,experiments were conducted to compare the results with those of other methods on a dataset of real agricultural *** the corn and wheat harvester trajectory datasets,the model achieved accuracies of 96.88%and 96.68%,as well as F1 scores of 93.54%and 94.19%,exhibiting improvements of 8.35%and 9.08%in accuracy and 20.99%and 20.04%in F1 score compared with the current state-of-the-art method.

关键词： road-field trajectory classification efficientNet feature deformation network multi-range feature enhancement agricultural machinery operation mode recognition

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Astrocytic endothelin-1 overexpression impairs learning and memory ability in ischemic stroke via altered hippocampal neurogenesis and lipid metabolism

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Neural Regeneration Research 2024年第3期19卷 650-656页

作者： Jie Li Wen Jiang Yuefang Cai Zhenqiu Ning Yingying Zhou Chengyi Wang Sookja Ki chung Yan Huang Jingbo sun Minzhen Deng Lihua Zhou Xiao Cheng Guangzhou University of Traditional Chinese Medicine GuangzhouGuangdong ProvinceChina State Key Laboratory of Dampness Syndrome of Chinese Medicine The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhouGuangdong ProvinceChina Guangdong Provincial Key Laboratory of Research on Emergency in TCM GuangzhouGuangdong ProvinceChina Department of Anesthesiology West China HospitalSichuan UniversityChengduSichuan ProvinceChina Department of Anatomy Sun Yat-Sen School of MedicineSun Yat-Sen UniversityShenzhenGuangdong ProvinceChina Faculty of Medicine Macao University of Science and TechnologyMacao Special Administration RegionChina

Vascular etiology is the second most prevalent cause of cognitive impairment ***-1,which is produced and secreted by endothelial cells and astrocytes,is implicated in the pathogenesis of ***,the way in which changes in astrocytic endothelin-1 lead to poststroke cognitive deficits following transient middle cerebral artery occlusion is not well ***,using mice in which astrocytic endothelin-1 was overexpressed,we found that the selective overexpression of endothelin-1 by astrocytic cells led to ischemic stroke-related dementia(1 hour of ischemia;7 days,28 days,or 3 months of reperfusion).We also revealed that astrocytic endothelin-1 overexpression contributed to the role of neural stem cell proliferation but impaired neurogenesis in the dentate gyrus of the hippocampus after middle cerebral artery *** proteome profiles and western blot analysis confirmed that levels of glial fibrillary acidic protein and peroxiredoxin 6,which were differentially expressed in the brain,were significantly increased in mice with astrocytic endothelin-1 overexpression in comparison with wild-type mice 28 days after ischemic ***,the levels of the enriched differentially expressed proteins were closely related to lipid metabolism,as indicated by Kyoto Encyclopedia of Genes and Genomes pathway *** chromatography-mass spectrometry nontargeted metabolite profiling of brain tissues showed that astrocytic endothelin-1 overexpression altered lipid metabolism products such as glycerol phosphatidylcholine,sphingomyelin,and phosphatidic ***,this study demonstrates that astrocytic endothelin-1 overexpression can impair hippocampal neurogenesis and that it is correlated with lipid metabolism in poststroke cognitive dysfunction.

关键词： astrocytic endothelin-1 dentate gyrus differentially expressed proteins hippocampus ischemic stroke learning and memory deficits lipid metabolism neural stem cells neurogenesis proliferation

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N,P co-doped 3D porous carbon with self-assembled morphological control via template-free method for potassiumion battery anodes

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Rare Metals 2024年第9期43卷 4243-4252页

作者： Jeehoon Yu Dae Kyom Kim Hong Geun Oh Seung-Keun Park Youngjae yoo Department of Advanced Materials Engineering Chung-Ang UniversityAnseong-si 17546Republic of Korea

The larger ionic radius of potassium ions than that of lithium ions significantly limits the accomplishment of rapid diffusion kinetics in graphite electrodes for potassium-ion batteries(PIBs),resulting in comparatively poor rate performance and cycle ***,we report a high-rate performance and cycling stability amorphous carbon electrode achieved through nitrogen and phosphorous *** as-prepared N,P co-doped carbon electrodes have distinct 3D structures with large surface areas,hierarchical pore architectures,and increased interlayer spaces resulting from the direct pyrolysis of supramolecular self-assembled aggregates without *** obtained electrode N3P1 exhibits a reversible specific capacity of 258 m Ah·g^(-1)at a current density of 0.1A·g^(-1)and a good long-term cycle performance(96.1%capacity retention after 800 cycles at 0.5 A·g^(-1)).Kinetic investigations show that the N3P1 electrode with the welldeveloped porous structure and large number of surface defects exhibits capacitive-driven behavior at all scan rates,which may be attributed by N and P ***-situ transmission electron microscopy analyses in the fully discharged and charged states demonstrate structural stability and reversibility owing to the expanded interlayer *** suggested synthesis approach is simple and effective for producing heteroatom-doped carbon materials for PIBs and other advanced electrochemical energy storage materials.

关键词： Amorphous carbons 3D porous structures Nitrogen and phosphorous co-doping Potassium-ion batteries

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The use of hydrogel microspheres as cell and drug delivery carriers for bone,cartilage,and soft tissue regeneration

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Biomaterials Translational 2024年第3期5卷 236-256页

作者： chung-Hsun Lin Jesse RSrioudom Wei sun Malcolm Xing Su Yan Le Yu Jian Yang Department of Biomedical Engineering The Pennsylvania State UniversityUniversity ParkPAUSA Department of Bioengineering University of PennsylvaniaPhiladelphiaPAUSA Leicester International Institute Dalian University of TechnologyPanjinLiaoning ProvinceChina Department of Mechanical Engineering University of ManitobaWinnipegCanada Division of Biological and Biomedical Systems University of Missouri-Kansas CityKansas CityMOUSA Biomedical Engineering Program Westlake UniversityHangzhouZhejiang ProvinceChina Research Centre for Industries of the Future Westlake UniversityHangzhouZhejiang ProvinceChina

Bone,cartilage,and soft tissue regeneration is a complex process involving many cellular activities across various cell *** remain the“gold standard”for the regeneration of these ***,the use of autografts is associated with many disadvantages,including donor scarcity,the requirement of multiple surgeries,and the risk of *** development of tissue engineering techniques opens new avenues for enhanced tissue ***,the expectations of tissue engineering scaffolds have gone beyond merely providing physical support for cell *** scaffolds should also provide biological cues to actively boost tissue *** a new type of injectable biomaterial,hydrogel microspheres have been increasingly recognised as promising therapeutic carriers for the local delivery of cells and drugs to enhance tissue *** to traditional tissue engineering scaffolds and bulk hydrogel,hydrogel microspheres possess distinct advantages,including less invasive delivery,larger surface area,higher transparency for visualisation,and greater flexibility for ***,we review the materials characteristics of hydrogel microspheres and compare their fabrication approaches,including microfluidics,batch emulsion,electrohydrodynamic spraying,lithography,and mechanical ***,based on the different requirements for bone,cartilage,nerve,skin,and muscle tissue regeneration,we summarize the applications of hydrogel microspheres as cell and drug delivery carriers for the regeneration of these ***,hydrogel microspheres are regarded as effective therapeutic delivery carriers to enhance tissue regeneration in regenerative ***,significant effort is required before hydrogel microspheres become widely accepted as commercial products for clinical use.

关键词： drug delivery fabrication techniques hydrogel microspheres microgels tissue regeneration

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Validity of fatty liver prediction scores for diagnosis of fatty liver by Fibroscan

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Hepatobiliary & Pancreatic Diseases International 2024年第4期23卷 353-360页

作者： Seogsong Jeong sun Jae Park Seong Kyun Na Sang Min Park Byung-Cheol Song Yun Hwan Oh Department of Biomedical Sciences Seoul National University Graduate SchoolSeoul 03080Korea Department of Biomedical Informatics CHA University School of MedicineCHA UniversitySeongnam 13488Korea Department of Internal Medicine Inje University College of MedicineSeoul 50834Korea Department of Family Medicine Seoul National University HospitalSeoul National University College of MedicineSeoul 03080Korea Department of Internal Medicine Jeju National University HospitalJeju National University College of MedicineJeju 63241Korea Department of Family Medicine Jeju National University HospitalJeju National University College of MedicineJeju 63241Korea Department of Family Medicine Chung-Ang University Gwangmyeong HospitalChung-Ang University College of MedicineGwangmyeong 14353Korea

Background:The Korea National Health and Nutrition Examination Survey nonalcoholic fatty liver disease(K-NAFLD)score was recently developed with the intent to operationally define nonalcoholic fatty liver disease(NAFLD).However,there remained an external validation that confirmed its diagnostic performance,especially in patients with alcohol consumption or hepatitis virus ***:Diagnostic accuracy of the K-NAFLD score was evaluated in a hospital-based cohort consisting of 1388 participants who received Fibroscan®.Multivariate-adjusted logistic regression models and the contrast estimation of receiver operating characteristic curves were used for validation of the K-NAFLD score,fatty liver index(FLI),and hepatic steatosis index(HSI).Results:K-NAFLD-moderate[adjusted odds ratio(aOR)=2.53,95%confidence interval(CI):1.13-5.65]and K-NAFLD-high(aOR=4.14,95%CI:1.69-10.13)groups showed higher risks of fatty liver compared to the K-NAFLD-low group after adjustments for demographic and clinical characteristics,and FLI-moderate and FLI-high groups revealed aORs of 2.05(95%CI:1.22-3.43)and 1.51(95%CI:0.78-2.90),*** addition,the HSI was less predictive for Fibroscan®-defined fatty *** K-NAFLD and FLI also demonstrated high accuracy in the prediction of fatty liver in patients with alcohol consumption and chronic hepatitis virus infection,and the adjusted area under curve values were comparable between K-NAFLD and ***:Externally validation of the K-NAFLD and FLI showed that these scores may be a useful,noninvasive,and non-imaging modality for the identification of fatty *** addition,these scores also predicted fatty liver in patients with alcohol consumption and chronic hepatitis virus infection.

关键词： Nonalcoholic fatty liver disease Fatty liver index Hepatic steatosis index

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Deep Learning-Based Action Classification Using One-Shot Object Detection

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Computers, Materials & Continua 2023年第8期76卷 1343-1359页

作者： Hyun yoo Seo-El Lee Kyungyong chung Contents Convergence Software Research Institute Kyonggi UniversitySuwon-si16227Korea Department of Public Safety Bigdata Kyonggi UniversitySuwon-si16227Korea Division of Computer Science and Engineering Kyonggi UniversitySuwon-si16227Korea

Deep learning-based action classification technology has been applied to various fields,such as social safety,medical services,and *** an action on a practical level requires tracking multiple human bodies in an image in real-time and simultaneously classifying their *** are various related studies on the real-time classification of actions in an ***,existing deep learning-based action classification models have prolonged response speeds,so there is a limit to real-time *** addition,it has low accuracy of action of each object ifmultiple objects appear in the ***,it needs to be improved since it has a memory overhead in processing image *** learning-based action classification using one-shot object detection is proposed to overcome the limitations of multiframe-based analysis *** proposed method uses a one-shot object detection model and a multi-object tracking algorithm to detect and track multiple objects in the ***,a deep learning-based pattern classification model is used to classify the body action of the object in the image by reducing the data for each object to an action *** to the existing studies,the constructed model shows higher accuracy of 74.95%,and in terms of speed,it offered better performance than the current studies at 0.234 s per *** proposed model makes it possible to classify some actions only through action vector learning without additional image learning because of the vector learning feature of the posterior neural ***,it is expected to contribute significantly to commercializing realistic streaming data analysis technologies,such as CCTV.

关键词： Human action classification artificial intelligence deep neural network pattern analysis video analysis

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