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Adaptive Momentum-Backpropagation Algorithm for Flood Prediction and Management in the Internet of Things

Computers, Materials & Continua 2023年第10期77卷 1053-1079页

作者： Jayaraj Thankappan Delphin Raj Kesari Mary Dong Jin Yoon soo-hyun park Department of Computer Science Muslim Arts CollegeManonmaniam Sundaranar UniversityThiruvitancodeTamil Nadu629174India Laboratory Special Communication&Convergence Service Research Center Kookmin UniversitySeoul02707Korea Development and Operation Support of Polar Research Equipment Korea Polar Research Institute(KOPRI)Incheon21990Korea Department of Financial Information Security Kookmin UniversitySeoul02707Korea

Flooding is a hazardous natural calamity that causes significant damage to lives and infrastructure in the real ***,timely and accurate decision-making is essential for mitigating flood-related *** traditional flood prediction techniques often encounter challenges in accuracy,timeliness,complexity in handling dynamic flood patterns and leading to substandard flood management *** address these challenges,there is a need for advanced machine learning models that can effectively analyze Internet of Things(IoT)-generated flood data and provide timely and accurate flood *** paper proposes a novel approach-the Adaptive Momentum and Backpropagation(AM-BP)algorithm-for flood prediction and management in IoT *** AM-BP model combines the advantages of an adaptive momentum technique with the backpropagation algorithm to enhance flood prediction accuracy and ***-world flood data is used for validation,demonstrating the superior performance of the AM-BP algorithm compared to traditional *** addition,multilayer high-end computing architecture(MLCA)is used to handle weather data such as rainfall,river water level,soil moisture,*** AM-BP’s real-time abilities enable proactive flood management,facilitating timely responses and effective disaster ***,the AM-BP algorithm can analyze large and complex datasets,integrating environmental and climatic factors for more accurate flood *** evaluation result shows that the AM-BP algorithm outperforms traditional approaches with an accuracy rate of 96%,96.4%F1-Measure,97%Precision,and 95.9%*** proposed AM-BP model presents a promising solution for flood prediction and management in IoT networks,contributing to more resilient and efficient flood control strategies,and ensuring the safety and well-being of communities at risk of flooding.

关键词： Internet of Things flood prediction artificial neural network adaptive momentum backpropagation optimization disaster management

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Handover Mechanism Based on Underwater Hybrid Software-Defined Modem in Advanced Diver Networks

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Computers, Materials & Continua 2022年第3期70卷 5721-5743页

作者： K.M.Delphin Raj Sun-Ho Yum Jinyoung Lee Eunbi Ko soo-Yong Shin soo-hyun park Department of Financial Information Security Kookmin UniversitySeoul02707Korea Special Communication&Convergence Service Research Center Kookmin UniversitySeoul02707Korea Department of Computer Science Kookmin UniversitySeoul02707Korea

For the past few decades,the internet of underwater things(IoUT)otained a lot of attention in mobile aquatic applications such as oceanography,diver network monitoring,unmanned underwater exploration,underwater surveillance,location tracking system,*** of the IoUT applications rely on acoustic *** current IoUT applications face difficulty in delivering a reliable communication system due to the various technical limitations of IoUT environment such as low data rate,attenuation,limited bandwidth,limited battery,limited memory,connectivity problem,*** of the significant applications of IoUT include monitoring underwater diver *** order to perform a reliable and energy-efficient communication system in the underwater diver networks,a smart underwater hybrid softwaredefined modem(UHSDM)for the mobile ad-hoc network was developed that is used for selecting the best channel/medium among acoustic,visible light communication(VLC),and infrared(IR)based on the criteria established within the ***,due to the mobility of underwater divers,the developed UHSDMmeets the challenges such as connectivity errors,frequent link failure,transmission delay caused by re-routing,*** emergency,the divers are most at the risk of *** deal with diver mobility,connectivity,energy efficiency,and reducing the latency in ADN,a handover mechanism based on pre-built UHSDM is proposed in this *** paper focuses on(1)design of UHSDM for ADN(2)propose the channel selection mechanism in UHSDM for selecting the best medium for handover and(3)propose handover protocol *** implementation result shows that the proposed mechanism can be used to find the new route for divers in advance and the latency can be reduced ***,this paper shows the real field experiment of air tests and underwater tests with various *** research will contribute much to the profit of researchers in underwater diver networks and underwater net

关键词： Internet of underwater things(IoUT) underwater hybrid software-defined modem(UHSDM) advanced diver networks(ADN) channel selection mechanism(CSM) handover mechanism acoustic visible light communication(VLC) infrared(IR)

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Detection of Apple Marssonina Blotch with PLSR, PCA, and LDA Using Outdoor Hyperspectral Imaging

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光谱学与光谱分析 2020年第4期40卷 1309-1314页

作者： soo hyun park Youngki Hong Mubarakat Shuaibu Sangcheol Kim Won Suk Lee Department of Agricultural and Biological Engineering University of FloridaGainesvilleFL 32611United States Department of Agricultural Engineering National Academy of Agricultural ScienceRDAJeonju 55365South Korea Smart Farm Research Center Korea Institute of Science and Technology(KIST)Gangneung-siGangwon-do 25451South Korea

In this study, hyperspectral images were used to detect a fungal disease in apple leaves called Marssonina blotch(AMB). Estimation models were built to classify healthy, asymptomatic and symptomatic classes using partial least squares regression(PLSR), principal component analysis(PCA), and linear discriminant analysis(LDA) multivariate methods. In general, the LDA estimation model performed the best among the three models in detecting AMB asymptomatic pixels, while all the models were able to detect the symptomatic class. LDA correctly classified asymptomatic pixels and LDA model predicted them with an accuracy of 88.0%. An accuracy of 91.4% was achieved as the total classification accuracy. The results from this work indicate the potential of using the LDA estimation model to identify asymptomatic pixels on leaves infected by AMB.

关键词： Apple Marssonina blotch Hyperspectral imaging PLSR PCA LDA

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Glucagon peptide-like 1 receptor (GLP-1R) expression per se: a new insight into neurodegenerative disease?

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Neural Regeneration Research 2015年第7期10卷 1055-1057页

作者： Dong-il Kim soo-hyun park College of Veterinary Medicine Chonnam National University

Glucagon peptide-like 1（GLP-1）and GLP-1 receptor（GLP-1R）：GLP-1 is an incretin hormone secreted from gut L ***-1 exerts its action through binding to its specific receptor,GLP-1R,which is a member of the G protein... 详细信息

关键词： GLP-1R a new insight into neurodegenerative disease expression per se Glucagon peptide-like 1 receptor

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Therapeutic potential of Gastrodia elata Blume for the treatment of Alzheimer's disease

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Neural Regeneration Research 2013年第12期8卷 1061-1070页

作者： Guang-Biao Huang Tong Zhao Sushma Shrestha Muna Hong-Mei Jin Jong-Il park Kyu-Sik Jo Bo-Hee Lee soo-Wan Chae Sun-Young Kim soo-hyun park Eun-Ock park Eun-Kyung Choi Young-Chul Chung Department of Psychiatry Chonbuk National University Medical SchoolJeonju 561-756 Republic of Korea Muju Chunma Native Local Industrial Center Muju 568-844 Republic of Korea Clinical Trial Center for Functional Foods Chonbuk National University HospitalJeonju 561-756 Republic of Korea Department of Pharmacology Chonbuk National University Medical SchoolJeonju 561-756 Republic of Korea

Several studies have demonstrated that the Chinese herb Gastrodia elata Blume can protect against amyloid beta-peptide （Ap）-induced cell death. To investigate the possible therapeutic effects of Gastrodia elata Blume on Alzheimer＇s disease, we established a rat model of AIzheimer＇s disease by injecting A325-35 into bilateral hippocampi. These rats were intragastrically administered 500 or 1 000 mg/kg Gastrodia elata Blume per day for 52 consecutive days. Morris water maze tests showed that Gastrodia elata Blume treatment significantly improved the spatial memory of Alzheimer＇s disease rats. Congo red staining revealed that Gastrodia elata Blume significantly reduced the number of amyloid deposits in the hippocampus of these rats. Western blot analysis showed that choline acetyltransferase expression in the medial septum and hippocampus was significantly increased by the treatment of Gastrodia elata Blume, while EIIman method showed significant decrease in the activity of acetylcholinesterase in all three regions （prefrontal cortex, medial septum and hippocampus）. These findings suggest that long-term administration of Gastrodia elata Blume has therapeutic potential for Alzheimer＇s disease.

关键词： neural regeneration neuroprotective effect Traditional Chinese medicine Gastrodia elata Blume Alzheimer's disease Morris water maze test choline acetyltransferase acetylcholinesterase grants-supported paper neuroregeneration

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Prominent cycling reversibility and kinetics enabled by CaTiO3 protective layer on Zn metal for aqueous Zn-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 245-258页

作者： Gaeun Lee Yong Nam Ahn Seongjoon So Chanwoo park Jong-Seong Bae Taehyun park Il Tae Kim Jaehyun Hur School of Chemical Biological and Battery Engineering Gachon University Seongnam Busan Center Korea Basic Science Institute

Aqueous Zn-ion batteries （AZIBs） have received considerable attention owing to their various advantages such as safety,low cost,simple battery assembly conditions,and high ionic ***,they still suffer from serious problems,including uncontrollable dendrite growth,corrosion,hydrogen evolution reaction （HER） from water decomposition,electrode passivation,and unexpected *** creation of a uniform artificial nanocrystal layer on the Zn anode surface is a promising strategy for resolving these ***,we propose the use of a perovskite CaTiO3（CTO） protective layer on Zn（CTO@Zn） as a promising approach for improving the performance of *** CTO artificial layer provides an efficient pathway for Zn ion diffusion towards the Zn metal because of the high dielectric constant （εr=180） and ferroelectric characteristics that enable the alignment of dipole moments and redistribute the Zn2+ions in the CTO *** avoiding the direct contact of the Zn anode with the electrolyte solution,the uneven dendrite growth,corrosion,parasitic side reactions,and HER are mitigated,while CTO retains its mechanical and chemical robustness during ***,CTO@Zn demonstrates an improved lifespan in a symmetric cell configuration compared with bare ***@Zn shows steady overpotential （～68 m V） for 1500 h at 1 mA cm-2/0.5 mA h cm-2,excelling bare ***,when paired with the V2O5-C cathode,the CTO@Zn//V2O5-C full battery delivers 148.4 mA h g-1（based on the mass of the cathode） after 300 *** study provides new insights into Zn metal anodes and the development of high-performance AZIBs.

关键词： Perovskite

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Predictors of pain resolution after varicocelectomy for painful varicocele

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Asian Journal of Andrology 2011年第5期13卷 754-758页

作者： hyun Jun park Seung soo Lee Nam Cheol park Department of Urology Pusan National University School of MedicineMedical Research InstitutePusan National University.Busan 602-739Korea

Varioocelectomny is a management option for patients with painful varicocele. In this study, we assessed the effectiveness of varicocelectomy for painful varicocele and examined the factors that might be predictive of outcome. All patients who underwent a varicocelectomy for pain between February 2007 and July 2009 were includecL A review of patient medical records was conducted; patient age,body mass index （BMI）, uede, iocatien of the vericocele, tasticular volume, duration and quality of the pain （dull, draaing, throbbing or sharp） and surgical technique （ingulnal versus subinguinal） were documented. All parameters were compared with the rasolution of pain （complete, partial or failure）. We followed up on 53 of 104 patients （51.0%）. Complete postopanntive resolution of pain was reported by 28 patients （52.8%）, whereas 22 （41.5%） reported partial resolution, Only three patients （5.7%） mpaded failure. No relationship was observed between postoperative pain resolution and age, BMI, grade of varicoceio, location of varicocele, ipsilateral testicular, quality of pain or surgical technique. The duration of pain before surllery was the only factor that correlated with postopaative pain resolution （univariate, P=-0.004; multivariate, P=0.002）. Our rasults indicatethat varicocelectomy isan effective treatmentfar painful varicocele in properly selected patients, and that duration of pain before surgery may be predictive of outcome.

关键词： duration pain testis vadcocele vadcocelectemy

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Expression of prothymosin α predicts early recurrence and poor prognosis of hepatocellular carcinoma

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Hepatobiliary & Pancreatic Diseases International 2015年第2期14卷 171-177页

作者： Sang Yun Ha Dae hyun Song soo hyun Hwang soo Youn Cho Cheol-Keun park Department of Pathology Samsung Medical CenterSungkyunkwan University School of Medicine

BACKGROUND：Prothymosinα（PTMA）is a nuclear oncoprotein-transcription factor essential for cell cycle progression and *** was overexpressed in several human malignancies including hepatocellular carcinoma（HCC）.However,the prognostic significance of PTMA protein expression in HCC remains *** the present study,we evaluated PTMA protein expression by immunohistochemistry in order to elucidate the prognostic roles of PTMA in HCC ***： By immunohistochemistry, we investigated the expression of PTMA protein in tumor tissue from 226 HCC patients who underwent curative hepatectomy. Univariate and multivariate analyses were performed to evaluate its predic- tive value for tumor recurrence and survival of patients. The median follow-up period was 120 months. RESULTS： PTMA expression was observed in 162 （71.7%） of the 226 HCC patients and was significantly associated with higher Edmondson grade, microvascular invasion, intrahe- patic metastasis, higher American Joint Committee on Cancer （AJCC） T-stage, and lower albumin level. PTMA expression was an independent predictor of early recurrence （P=0.001）. PTMA expression showed an unfavorable influence on recurrence- free survival （RFS）（P〈0.001）. Subgroup analysis showed that among patients with tumor size _〈5.0 cm （140 patients）, patients at AJCC T-stage I （95 patients） and patients with a-fetoprotein ≤20 ng/mL （83 patients）, the differences in RFS between PTMA- positive and PTMA-negative groups were also statistically sig- nificant （P=0.017, P=0.002 and P=0.002, respectively）. In addi- tion, PTMA expression was an independent predictor of shorter RFS （P=0.011）. PTMA expression showed an unfavorable influ- ence on overall survival （P=0.014）, but was not an independent predictor of shorter overall survival （P=0.161）. CONCLUSIONS： PTMA protein expression might be a novel predictor of early recurrence and RFS in HCC patients, even those at early stage or with a-fetoprotein-negative after curative hep

关键词： prothymosin a hepatocellular carcinoma recurrence

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Scalable Ir‑Doped NiFe_(2)O_(4)/TiO_(2)Heterojunction Anode for Decentralized Saline Wastewater Treatment and H_(2)Production

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Nano-Micro Letters 2025年第3期17卷 1-18页

作者： Sukhwa Hong Jiseon Kim Jaebeom park Sunmi Im Michael R.Hoffmann Kangwoo Cho Division of Environmental Science and Engineering Pohang University of Science and Technology(POSTECH)Pohang 790−784Korea Linde Laboratory California Institute of TechnologyPasadenaCA 91125USA Institute for Convergence Research and Education in Advanced Technology(I‑CREATE) Yonsei University International CampusIncheon 21983Republic of Korea

Wastewater electrolysis cells(WECs)for decentralized wastewater treatment/reuse coupled with H_(2)production can reduce the carbon footprint associated with transportation of water,waste,and energy *** study reports Ir-doped NiFe_(2)O_(4)(NFI,~5 at%Ir)spinel layer with TiO_(2)overlayer(NFI/TiO_(2)),as a scalable heterojunction anode for direct electrolysis of wastewater with circumneutral pH in a single-compartment *** dilute(0.1 M)NaCl solutions,the NFI/TiO_(2)marks superior activity and selectivity for chlorine evolution reaction,outperforming the benchmark IrO_(2).Robust operation in near-neutral pH was *** including operando X-ray absorption spectroscopy unveiled crucial roles of TiO_(2) which serves both as the primary site for Cl−chemisorption and a protective layer for NFI as an ohmic *** electrolysis of NH4+-laden synthetic wastewater demonstrated that NFI/TiO_(2)not only achieves quasi-stoichiometric NH_(4)^(+)-to-N_(2)conversion,but also enhances H_(2)generation efficiency with minimal competing reactions such as reduction of dissolved oxygen and reactive *** scaled-up WEC with NFI/TiO_(2)was demonstrated for electrolysis of toilet wastewater.

关键词： Wastewater electrolysis cell Ir-doped NiFe_(2)O_(4) Reactive chlorine species Decentralized H_(2)production On-site wastewater treatment

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Development of 3D bicontinuous metal-intermetallic composites through subsequent alloying process after liquid metal dealloying

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Journal of Magnesium and Alloys 2023年第11期11卷 4274-4281页

作者： Jee Eun Jang Jihye Seong soo-hyun Joo Sung Hyuk park School of Materials Science and Engineering Kyungpook National UniversityDaegu 41566Republic of Korea Department of Materials Science and Engineering Dankook UniversityCheonan 31116Republic of Korea

This study presents a novel process for the fabrication of metal-intermetallic composites with a 3D bicontinuous structure, achieved through a combination of liquid metal dealloying(LMD) and subsequent alloying. Initially, porous Ti structures are produced using the LMD process, followed by immersion in a molten Mg-3Al(wt%) metal. Due to the higher thermodynamic miscibility of Al with Ti compared to Mg, the concentration of Al in the Ti matrix increases as the immersion time increases. This results in a sequential phase transition within the Ti matrix: α-Ti → Ti_(3)Al → Ti Al. The phase transition considerably affects the hardness and strength of the composite material,with the Mg-Ti_(3)Al-Ti Al composite exhibiting a maximum hardness nearly twice as high as that of the conventional Mg-Ti composite. This innovative process holds potential for the development of various bicontinuous metal-intermetallic composites.

关键词： Liquid metal dealloying Subsequent alloying Metal–intermetallic composite 3D bicontinuous structure Hardness

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