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An Artificial Intelligence-Based Framework for Fruits Disease Recognition Using Deep Learning

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Computer Systems Science & Engineering 2024年第2期48卷 529-554页

作者： Irfan Haider Muhammad Attique Khan Muhammad Nazir Taerang Kim jae-Hyuk Cha Department of Computer Science HITEC UniversityTaxila47080Pakistan Department of Computer Science Hanyang UniversitySeoulKorea

Fruit infections have an impact on both the yield and the quality of the *** a result,an automated recognition system for fruit leaf diseases is *** artificial intelligence(AI)applications,especially in agriculture,deep learning shows promising disease detection and classification *** recent AI-based techniques have a few challenges for fruit disease recognition,such as low-resolution images,small datasets for learning models,and irrelevant feature *** work proposed a new fruit leaf leaf leaf disease recognition framework using deep learning features and improved pathfinder *** fruit types have been employed in this work for the validation process,such as apple,grape,and *** the first step,a noisy dataset is prepared by employing the original images to learn the designed framework *** EfficientNet-B0 deep model is fine-tuned on the next step and trained separately on the original and noisy *** that,features are fused using a serial concatenation approach that is later optimized in the next step using an improved Path Finder Algorithm(PFA).This algorithm aims to select the best features based on the fitness score and ignore redundant *** selected features are finally classified using machine learning classifiers such as Medium Neural Network,Wide Neural Network,and Support Vector *** experimental process was conducted on each fruit dataset separately and obtained an accuracy of 100%,99.7%,99.7%,and 93.4%for apple,grape,Citrus fruit,and citrus plant leaves,respectively.A detailed analysis is conducted and also compared with the recent techniques,and the proposed framework shows improved accuracy.

关键词： Fruit disease contrast enhancement augmentation deep learning fusion feature selection classification

Improved thermal performance of a hydronic radiant panel heating system by the optimization of tube shapes

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第6期12卷 428-437页

作者： Young T.CHAE Kwang Ho lee jae sung PARK School of Architecture University of Illinois at Urbana-Champaign Department of Architectural Engineering Hanbat National University Department of Mechanical Engineering University of Illinois at Urbana-Champaign

The thermal performance enhancement of the hydronic radiant floor heating system by tube shape refinements is investigated in this *** analytical and detailed numerical modelings are carried out to predict the performance of the radiant *** the simple analytical model briefly investigates the possibility of the effect of the tube shape improvement with the parametric analysis,the commercial computational fluid dynamics(CFD) code(Ansys/CFX) is used to perform the detailed 3D analysis under different tube shape *** fin thickness,the number of fins,and the tube thermal conductivity turn out to have significant effects on the radiant system *** potential energy saving impacts of the tube shape refinements are also *** tube shape improvement turns out to increase the floor surface temperature and to decrease the hot water temperature drop across the system,resulting in heating energy savings.

关键词： Radiant panel system Analytical modeling Computational fluid dynamics(CFD) Tube shape Energy saving

Oxygen functionalization-assisted anionic exchange toward unique construction of flower-like transition metal chalcogenide embedded carbon fabric for ultra-long life flexible energy storage and conversion

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Carbon Energy 2024年第1期6卷 72-93页

作者： Roshan M.Bhattarai Kisan Chhetri Nghia Le Debendra Acharya Shirjana Saud Mai Cao Hoang Phuong Lan Nguyen Sang jae Kim Young Sun Mok Department of Chemical Engineering Jeju National UniversityJejuRepublic of Korea Department of Nano Convergence Engineering Jeonbuk National UniversityJeonjuRepublic of Korea Regional Leading Research Center(RLRC)for Nanocarbon-based Energy Materials and Application Technology Jeonbuk National UniversityJeonjuRepublic of Korea Department of Chemistry Mississippi State UniversityStarkvilleMississippiUSA Nanomaterials and System Laboratory Department of Mechatronics EngineeringJeju National UniversityJejuRepublic of Korea

The metal-organic framework(MOF)derived Ni–Co–C–N composite alloys(NiCCZ)were“embedded”inside the carbon cloth(CC)strands as opposed to the popular idea of growing them upward to realize ultrastable energy storage and conversion *** NiCCZ was then oxygen functionalized,facilitating the next step of stoichiometric sulfur anion diffusion during hydrothermal sulfurization,generating a flower-like metal hydroxysulfide structure(NiCCZOS)with strong partial implantation inside *** obtained NiCCZOS shows an excellent capacity when tested as a supercapacitor electrode in a three-electrode ***,when paired with the biomass-derived nitrogen-rich activated carbon,the asymmetric supercapacitor device shows almost 100%capacity retention even after 45,000 charge–discharge cycles with remarkable energy density(59.4 Wh kg^(-1)/263.8μWh cm^(–2))owing to a uniquely designed ***,the same electrode performed as an excellent bifunctional water-splitting electrocatalyst with an overpotential of 271 mV for oxygen evolution reaction(OER)and 168.4 mV for hydrogen evolution reaction(HER)at 10 mA cm−2 current density along with 30 h of unhinged chronopotentiometric stability performance for both HER and ***,a unique metal chalcogenide composite electrode/substrate configuration has been proposed as a highly stable electrode material for flexible energy storage and conversion applications.

关键词： carbon cloth energy conversion energy storage flexible metal embedding ultra-stable

新的心肌PET显像剂18F-FPTP的参数图形算法的比较

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中华核医学与分子影像杂志 2018年第2期38卷 151-151页

作者：唐军 Ji Who Kim Seongho Seo Hyeon Sik Kim Dong-Yeon Kim Ho-Young lee Keon Wook Kang Dong Soo lee Hee-Seung Bom Jung-Joon Min jae sung lee 上海交通大学医学院附属苏州九龙医院核医学科 Department of Nuclear Medicine and Department of Biomedical Sciences Seoul National University Department of Cardiology Chonnam National University Hwasun Hospital

目的 (18F-氟戊基)三苯基季磷盐(18F-FPTP)是一种新的有应用前景的心肌PET显像剂,其在心肌细胞内积聚量多且肝脏清除快。该研究小组在小鼠体内做了18F-FPTP PET显像的代谢区室分析和两项线性分析,即用于生成参数图的线性最小二乘法（LL... 详细信息

目的 (18F-氟戊基)三苯基季磷盐(18F-FPTP)是一种新的有应用前景的心肌PET显像剂,其在心肌细胞内积聚量多且肝脏清除快。该研究小组在小鼠体内做了18F-FPTP PET显像的代谢区室分析和两项线性分析,即用于生成参数图的线性最小二乘法（LLS）和基函数法（BFM）分析。此外,还研究了动态分析的最小动态显像时间,并进行了计算机模拟。方法对心肌梗死（MI）小鼠模型（n=12）进行18F-FPTP动态PET显像（18 min）和CT显像。在左心室、正常心肌和梗死区勾画感兴趣区（ROI）。比较两室模型（速率常数k1和k2;2室2参数）和不可逆摄取的三室模型（速率常数k1-k3;3室3参数）的拟合优度,并进行部分容积和溢出校正（Vα和α=1-Va）。LLS和BFM用于基于ROI和基于体素的动力学参数估算,估算结果与相应代谢区室模型标准的基于ROI的非线性最小二乘法（NLS）结果进行比较。通过计算机模拟研究估算方法的统计学特点。结果 2室2参数模型最适于描述18F-FPTP的动力学表现。正常心肌的平均k1、k2和Va值分别是6.8ml·min-1·g-1、1.1/min和0.44,而梗死组织的分别是1.4 ml·min-1·g-1、1.1/min和0.32。动态显像10 min的数据即足够用于估算各项参数。LLS和BFM的估算结果与ROI水平的NLS的结果有很好的相关性（k1:1.22x-0.30,r2=0.90;y=1.26x+0.00,r2=0.92）。动态参数图形（αk1,k1,k2,Va）的局部分布具有生理相关性。在计算机模拟中,LLS和BFM比NLS的特征性更强。结论快速的动力学特征和心肌较高的特异性摄取使18F-FPTP能在显像开始的最初10 min动态显像内,利用2室2参数模型进行定量分析。LLS和BFM能在体素水平进行参数估算,这2种方法可用于定量评价18F-FPTP在心肌中的分布,进而研究其在不同条件、不同疾病模型和病种中进行心肌显像的表现。

关键词：定量参数图模拟心肌PET

Curcumin-induced cell death depends on the level of autophagic flux in A172 and U87MG human glioblastoma cells

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Chinese Journal of Natural Medicines 2020年第2期18卷 114-122页

作者： lee Jong-Eun Yoon sung Sik lee jae-Wook Moon Eun-Yi Department of Bioscience and Biotechnology Sejong UniversitySeoul 05006Republic of Korea

Glioblastoma is the deadliest neoplasm with the worst 5-year survival rate among all human *** promotes autophagic cell death or blocks the induction of apoptosis in eukaryotic ***,we investigated whether varying levels of autophagic flux in glioblastoma lead to different efficacies of curcumin treatment using U87 MG and A172 human glioblastoma *** number of LC3 puncta,the number of cells with LC3 puncta and the level of LC3 Ⅱ,Atg5 and Atg7 protein were higher in U87 MG cells compared with A172 *** the cells were incubated with curcumin for 24 or 48 h,the percentage of cell death was higher in A172 cells compared with U87 MG *** the level of LC3 was lower,that of curcumin-induced LC3 was higher,in A172 cells than in U87 MG *** relative increases in cell death and LC3-mediated autophagy were greater under serum starvation in A172 cells compared with U87 MG ***-induced A172 cell death was reduced by serum *** both types of cells were transfected with LC3-GFP,the percentage of cell death was higher in A172 cells than that in U87 MG *** together,the data demonstrate that curcumin-mediated tumor cell death is regulated by the basal level of autophagic flux in different glioblastoma *** suggests that prior to the use of various curcumin therapeutics,the level of basal or induced autophagic flux should be carefully examined in tumor cells for the best efficacy.

关键词： Glioblastoma A172 U87MG Autophagic flux Curcumin

Effect of transcranial direct current stimulation on supernumerary phantom limb pain in spinal cord injured patient:A case report

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World Journal of Clinical Cases 2024年第17期12卷 3177-3182页

作者： Hyo-Sik Park jae-Hyung Kim Department of Interventional Physiatry Eulji University Medical CenterSeo-GuDaejeonSouth Korea

BACKGROUND Supernumerary phantom limb(SPL)sensation is the experience of additional limbs,either single or a pair of *** to traumatic spinal cord injuries,we report effect of transcranial direct current stimulation(tDCS)on SPL pain in a patient with cervical cord *** SUMMARY The subject was a 57-year-old man who was diagnosed with complete spinal cord injury(C6/C5,motor level;C5/C5,sensory level;AIS-A)approximately three months *** a period of 2 wk,we administered anodal tDCS over the motor cortex for 15 minutes at an intensity of 1.5 *** that treatment,the patient experienced a decrease of SPL pain intensity and frequency,which lasted for 1 week after the end of *** Targeting the motor cortex through neuromodulation appears to be a promising option for the management of SPL pain.

关键词： Supernumerary phantom limb pain Spinal cord injury transcranial Direct Current Stimulation Neuromodulation Case report

Autophagy in ischemic aged livers

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Liver Research 2018年第3期2卷 133-137页

作者： Choonghee lee jae-sung Kim Department of Surgery Saint Louis UniversitySt.LouisMOUSA

Ischemia/reperfusion(I/R)injury inevitably occurs during liver resection and *** patients poorly recover from these *** reduced reparative capacity with aging is causatively associated with decreased mitochondrial function after *** autophagy(mitophagy)is a vital cellular process that timely clears abnormal and dysfunctional *** or insufficient autophagy can contribute to hepatocyte death after I/*** review describes our current understanding of I/R injury and highlights new mechanistic correlation between sirtuin 1(SIRT1),mitofusin 2(MFN2),and autophagy in the pathogenesis of age-dependent hypersensitivity to reperfusion *** deacetylation of MFN2 by SIRT1 plays a pivotal role in the recovery from reperfusion injury by modulating the onset of *** the SIRT1-MFN2 axis could be a new therapeutic target to reduce I/R injury in aged livers.

关键词： Hepatocytes Autophagy Mitochondrial autophagy(mitophagy) Aging Ischemia/reperfusion(I/R) Sirtuin 1-mitofusin 2(SIRT1-MFN2)axis

Monitoring of non-point source pollutants load from a mixed forest land use

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Journal of Environmental Sciences 2010年第6期22卷 801-805页

作者： sung Wan Yoon Se Woong Chung Dong Geun Oh jae Woon lee Department of Environmental Engineering Chungbuk National University Geum River Environmental Research Center National Institute of Environmental Research

The aim of this study was to determine the unit load of NPS （non-point source） pollutants including organic variables such as BOD （biochemical oxygen demand）, COD （chemical oxygen demand） and DOC （dissolved organic carbon）, nitrogen and phosphorus constituents, and suspended solids （SS） and their event mean concentration （EMC） of runoff flows from a water-shed of mixed forest land use by intensive field experiments. Field monitoring for continuous measurements of rainfall, flow, and water quality was conducted over 12 storm events during 2008-2009 using automated and manual sampling methods. The EMCs of individual runoff event were estimated for each water quality constituent based on the flow rate and concentration data of runoff discharge. The average EMCs of BOD, COD, DOC, SS, TN （total nitrogen）, NH4^＋-N, NO3^--N, TP （total phosphorus）, PO4^3-P from the mixed forest land were 1.794, 3.498, 1.462, 10.269, 0.862, 0.044, 0.634, 0.034, and 0.005 mg/L, respectively. The annual unit loads of BOD, COD, DOC, SS, TN, NH4^＋-N, NO3^--N, TP and PO4^3--P were estimated as 66.9, 133.2, 55.5, 429.8, 36.5, 1.6, 26.9, 1.3 and 0.1 kg/（ha·yr）, respectively. In addition, affecting parameters on the EMCs were investigated by statistic analysis of the field data. As a result, significant correlations with precipitation, rainfall intensity, and total runoff flows were found in most constituents.

关键词： event mean concentration mixed forest land use non-point source pollutant load unit load

A comprehensive approach to a variability analysis between earthquake activity and hydro-environmental factors on the Korean Peninsula

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Earthquake Engineering and Engineering Vibration 2023年第4期22卷 937-950页

作者： jae-Kyoung lee Innovation Center for Engineering Education Daejin UniversityPocheon-siGyeonggi-do487-711Republic of Korea

Following the Pohang and Gyeongju earthquakes and their aftershocks,there is no longer any zone that is safe from earthquake-related disasters in the Korean *** order to monitor and predict earthquakes,correlation analysis of earthquakes and hydro-environmental factors are insufficient,and the development and application of hydro-environmental factor measurement equipment is still in the early *** study developes and verifies a more precise radon measurement *** specific earthquake cases(2019–2020)were selected,and the correlation of the analyses of the earthquakes and hydro-environmental factors(radon,electric conductivity(EC),water-level(WL),and water-temperature(WT))was conducted at the three specific groundwater ***,was confirmed that four factors are affected by earthquakes or seismic ***,the variability of the EC showed an identical tendency for a certain period before an earthquake occurred,and,in particular,the variability trends for radon,WL,and EC coincided at the time of the earthquake′s occurrence.

关键词： variability analysis earthquake radon hydro-environmental factor