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Analysis of AI-based techniques for forecasting water level according to rainfall

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Tropical Cyclone Research and Review 2021年第4期10卷 223-228页

作者： Chorong kim chung-soo kim Department of Hydro Science and Engineering Research Korea Institute of Civil Engineering and Building TechnologyGoyang-siGyeonggi-doRepublic of Korea

Water level forecasting according to rainfall is important for water resource management and disaster *** hydrological analysis is accompanied by difficulties in water level forecasting analysis such as topographic data and model parameter optimization of the ***,with the improvement of AI(Artificial Intelligence)technology,a research using AI technology in the water resource field is being *** this research,water level forecasting was performed using an AI-based technique that can capture the relationship between *** the watershed for the study,the Seolmacheon catchment which has the rich historical hydrological data,was ***(Support Vector Machine)and a gradient boosting technique were used for AI machine *** AI deep learning,water level forecasting was performed using a Long Short-Term Memory(LSTM)network among Recurrent Neural Networks(RNNs)used for time series *** correlation coefficient and NSE(Nash-Sutcliffe Efficiency),which are mainly used forhydrological analysis,were used as performance *** a result of the analysis,all three techniques performed excellently in water level *** them,the LSTM network showed higher performance as the correction period using historical data *** there is a concern about an emergency disaster such as torrential rainfall in Korea,water level forecasting requires quick *** is thought that the above requirements will be satisfied when an AI-based technique that can forecast water level using historical hydrology data is applied.

关键词： Water level forecasting SVM Gradient boosting RNN LSTM

CAD/CAM for scalable nanomanufacturing:A network-based system for hybrid 3D printing

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Microsystems & Nanoengineering 2017年第1期3卷 135-145页

作者： Hae-Sung Yoon Hyun-Taek Lee Ki-Hwan Jang chung-soo kim Hyunseo Park Dae-Wook kim Kunwoo Lee Sangkee Min Sung-Hoon Ahn BK21 Plus Transformative Training Program for Creative Mechanical and Aerospace Engineers Seoul National UniversitySeoul 08826Republic of Korea Department of Mechanical and Aerospace Engineering Seoul National UniversitySeoul 08826Republic of Korea Department of Mechanical Engineering University of Wisconsin-MadisonMadisonWI 53706USA Institute of Advanced Machines and Design Seoul National UniversitySeoul 08826Republic of Korea

Micro-and nano-structuring have been highlighted over several decades in both science and engineering *** addition to continuous efforts in fabrication techniques,investigations in scalable nanomanufacturing have been pursued to achieve reduced feature size,fewer constraints in terms of materials and dimensional complexity,as well as improved process *** this study,based on recent micro-/nanoscale fabrication processes,characteristics and key requirements for computer-aided design and manufacturing(CAD/CAM)systems for scalable nanomanufacturing were *** include a process knowledge database,standardized processing,active communication,adaptive interpolation,a consistent coordinate system,and management of peripheral *** scalable nanomanufacturing,it is important to consider the flexibility and expandability of each process,because hybrid and bridging processes represent effective ways to expand process *** an example,we describe a novel CAD/CAM system for hybrid three-dimensional(3D)printing at the *** novel hybrid process was developed by bridging aerodynamically focused nanoparticle printing,focused ion beam milling,micromachining,and spincoating *** system developed can print a full 3D structure using various inorganic materials,with a minimum process scale of 50 *** most obvious difference versus CAD/CAM at‘conventional’scales is that our system was developed based on a network to promote communication between users and process *** the network-based system,it is also possible to narrow the gap among different processes/*** anticipate that this approach can contribute to the development of CAD/CAM for scalable nanomanufacturing and a wide range of hybrid processes.

关键词： Computer-aided design and manufacturing(CAD/CAM) nanomanufacturing network-based 3D printing

Apolipoprotein A-I binding protein-mediated neuroprotection in glaucomatous neuroinflammation and neurodegeneration

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Neural Regeneration Research 2025年第5期20卷 1414-1415页

作者： Sinwoo Hwang Seunghwan Choi soo-Ho Choi Keun-Young kim Yury I.Miller Won-Kyu Ju Hamilton Glaucoma Center and Shiley Eye Institute The Viterbi Family Department of OphthalmologyUniversity of California San DiegoLa JollaCAUSA Department of Medicine University of California San DiegoLa JollaCAUSA National Center for Microscopy and Imaging Research Department of NeurosciencesUniversity of California San DiegoLa JollaCAUSA

Glaucoma is a multifactorial eye disorder that can cause vision loss and irreversible blindness,affecting individ uals aged 40 to 80 yea rs *** to the aging population,it is expected that the number of people affected by glaucoma will surpass 111 million by 2040 as the disease becomes more *** primarily contributes to optic nerve axon loss and the progressive degeneration of retinal ganglion cells (RGCs),subsequently leading to vision impairment.

关键词： irreversible pass primarily

Analytic Feynman Integrals of Functionals in a Banach Algebra Involving the First Variation

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Chinese Annals of Mathematics,Series B 2016年第2期37卷 281-290页

作者： Hyun soo chung Vu kim TUAN Seung Jun CHANG Department of Mathematics Dankook University Department of Mathematics University of West Georgia

This paper deals with the analytic Feynman integral of functionals on a Wiener space. First the authors establish the existence of the analytic Feynman integrals of functionals in a Banach algebra S_α. The authors then obtain a formula for the first variation of integrals. Finally, various analytic Feynman integration formulas involving the first variation are established.

关键词： Analytic Feynman integral Banach algebra First variation Cameron-Storvick theorem Wiener space

Development of RuS_(2) for near-infrared photodetector by atomic layer deposition and post-sulfurization

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Rare Metals 2022年第9期41卷 3086-3099页

作者： Tatsuya Nakazawa Donghyun kim Jaehyeok kim Yohei Kotsugi Taehoon Cheon Seung-Min chung soo-Hyun kim Hyungjun kim School of Electrical and Electronic Engineering Yonsei UniversitySeoul03722Korea Isehara Technical Center Metallic Materials Development DepartmentTANAKA Kikinzoku Kogyo K.KIseharaKanagawa259-1146Japan Institute of Materials Technology Yeungnam UniversityGyeongsan-si38541GyeongbukKorea Chemical Materials Development Department TANAKA Kikinzoku Kogyo K.KTsukuba Technical CenterIbaraki300-4247Japan School of Materials Science and Engineering Yeungnam UniversityGyeongsan-si38541GyeongbukKorea Center for Core Research Facilities Daegu Gyeongbuk Institute of Science&TechnologyDaegu711-873Korea

The chalcogenides of platinum-group metals(PGMs)have been known to be present in minerals and the intermediate products of *** recent years,their applications in various fields,including catalysis,have been *** that certain PGM chalcogenides behave as compound semiconductors,they can be used as materials for *** this study,RuS_(2),featuring a bandgap suitable for near-infrared photodetectors,was prepared by forming Ru on a SiO_(2)/Si substrate via the atomic layer deposition method using[Ru(TMM)(CO)_(3)]as the *** was conducted at 800℃ for 1 h under H_(2)S ***-resolution transmission electron microscopy(HRTEM)and X-ray diffraction(XRD)analysis clearly confirmed that the as-deposited hexagonal close-packed(hcp)Ru transformed to cubic RuS_(2) after *** surface morphologies,chemical states,and electrical and optical properties of RuS_(2) were *** influence of the metallic Ru surface morphology prior to sulfurization on the reaction between Ru and H_(2)S was also *** evaluate the potential of using RuS_(2) as a photodetector,a photodetector was fabricated by forming electrodes on RuS_(2) to measure its photocurrent under near-infrared ***,RuS_(2) was proven to exhibit a short response time(59μs)and generate a photocurrent of 84 nA under near-infrared light at 940 nm.

关键词： RuS_(2) Sulfurization Atomic layer deposition Photodetector

The CONSTANS-like 4 transcription factor,AtCOL_4,positively regulates abiotic stress tolerance through an abscisic acid-dependent manner in Arabidopsis

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Journal of Integrative Plant Biology 2015年第3期57卷 313-324页

作者： Ji-Hee Min Jung-Sung chung Kyeong-Hwan Lee Cheol soo kim Department of Plant Biotechnology Chonnam National University Department of Agronomy Gyeongsang National University Department of Rural and Biosystems Engineering Chonnam National University

The precise roles of the B-box zinc finger family of transcription factors in plant stress are poorly *** analysis was performed on AtCOL4,an Arabidopsis thaliana ***-like 4 protein that is a putative novel transcription factor,and which contains a predicted transcriptional activation *** of an AtCOL4 promoter-b-glucuronidase（GUS） construct revealed substantial GUS activity in whole *** expression of AtCOL4 was strongly induced by abscisic acid（ABA）,salt,and osmotic *** in atcol4 resulted in increased sensitivity to ABA and salt stress during seed germination and the cotyledon greening *** contrast,AtCOL4-overexpressing plants were less sensitive to ABA and salt stress compared to the wild ***,in the presence of ABA or salt stress,the transcript levels of other ABA biosynthesis and stress-related genes were enhanced induction in AtCOL4-overexpressing and WT plants,rather than in the atcol4 ***,AtCOL4 is involved in ABA and salt stress response through the ABA-dependent signaling *** together,these findings provide compelling evidence that AtCOL4 is an important regulator for plant tolerance to abiotic stress.e

关键词： Abscisic acid B-box zinc finger family transcription factor salt stress

Parameter selection of pocket extraction algorithm using interaction interface

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第9期7卷 1492-1499页

作者： kim Chong-Min WON chung-In RYU Joonghyun CHO Cheol-Hyung BHAK Jonghwa kim Deok-soo Department of Industrial Engineering Hanyang University Seoul 133-791 Korea Voronoi Diagram Research Center Hanyang University Seoul 133-791 Korea Samsung Electronics Suwon Gyeonggi-do 443-742 Korea Korean Bioinformation Center Korea Research Institute of Bioscience and Biotechnology Daejeon 305-806 Korea Department of Industrial Engineering Hanyang University Seoul 133-791 Korea)

Pockets in proteins have been known to be very important for the life process. There have been several studies in the past to automatically extract the pockets from the structure information of known proteins. However, it is difficult to find a study comparing the precision of the extracted pockets from known pockets on the protein. In this paper, we propose an algorithm for extracting pockets from structure data of proteins and analyze the quality of the algorithm by comparing the extracted pockets with some known pockets. These results in this paper can be used to set the parameter values of the pocket extraction algorithm for getting better results.

关键词： Pocket Protein Interaction interface Protein interaction Voronoi diagram

Prognosis of hepatocellular carcinoma expressing cytokeratin 19:Comparison with other liver cancers

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World Journal of Gastroenterology 2012年第34期18卷 4751-4757页

作者： Jung Il Lee Jin-Woo Lee Joon Mee kim Ja Kyung kim Hyun Jung chung Young soo kim Department of Internal Medicine School of MedicineInha UniversityIncheon 400-711South Korea Department of Pathology School of MedicineInha UniversityIncheon 400-711South Korea Department of Internal Medicine Yonsei University College of MedicineGangnam Severance HospitalSeoul 135-720South Korea

AIM:To investigate whether expressing biliary phenotype predicted poor outcome after the surgical treatment in primary liver cancers. METHODS:Out of 204 patients that underwent liver resection due to hepatocellular carcinoma (HCC), liver specimens of 70 patients with HCC were evaluated for biliary components by cytokeratin (CK) 19 immunostain (CK19 - HCC and CK19 + HCC). CK19 positivity was defined as membranous and/or cytoplasmic expression in ≥ 5% of tumor cells with moderate or strong intensity. Patients with other primary liver cancers, such as com- bined HCC and cholangiocarcinoma (cHCC-CC), intrahe- patic cholangiocarcinoma (ICC) who received curative liver resection, were also included in the study. Clinical characteristics of CK19-HCC and CK19 + HCC patients, including survival outcome after curative liver resection, were compared with that of cHCC-CC and ICC patients. RESULTS: The overall survival (OS) rate of CK19 - HCC(n = 49) after the curative surgical treatment was 90.7%, and 80.4% at 1 and 5 years after the resection. OS rate of CK19 + HCC (n = 21) was 74.3%, 28.9% and OS rate of cHCC-CC (n = 22) was 66.7%, 32.2% at 1 and 5 years after the surgery. For ICC (n = 19), 1 and 5-year-OS rate was 50.2% and 14.3% after the cura-tive resection. The OS rates of CK19 + HCC and cHCC-CC were significantly lower than that of CK19-HCC, but higher than the OS rate of ICC (P = 0.000). There was no statistically significant difference in OS rate between CK19 + HCC and cHCC-CC. The disease free survival (DFS) rate of CK19-HCC was 72.0% and 54.5% at 1 and 3 years after the surgical treatment. DFS rate of CK19 + HCC was 53.3%, 34.3% and DFS rate of cHCC- CC was 51.5%, 39.2% at 1 and 3 years after the resection. For ICC, 1 and 3-year-DFS rate was 28.0% and 14.0% after the curative resection. DFS rate of CK19-HCC was significantly higher than that of ICC (P = 0.017), but marginally higher than DFS rate of either CK19 + HCC or cHCC-CC (P = 0.097, P = 0.089, respec-tively).

关键词： Cytokeratin 19 Hepatocellular carcinoma Intrahepatic cholangiocarcinoma Liver cancers Hepa-tectomy

Atomistic investigation of pressure effects on sintering of bimetallic core-shell nanoparticles

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Journal of Materials Science & Technology 2024年第17期184卷 64-74页

作者： Juheon kim Hayoung chung Department of Mechanical Engineering Ulsan National Institute of Science and Technology50 Unist-gilUlsan 44919South Korea

Pressure-assisted sintering(PAS)utilizing bimetallic core-shell nanoparticles(CS NPs)has garnered widespread attention for its ability to produce advanced components with excellent thermal and elec-trical conductivities,even at low *** study presents the first investigation into the PAS of bimetallic CS NPs,using Ag-coated Cu material as a representative system,through all-atom molecu-lar dynamics(MD)*** study provides detailed insights into the atomic-scale processes and mechanisms that govern pressure-assisted sintering,elucidating the coalescence phenomena and reveal-ing the significant influence of external *** comparing atomistic behaviors,such as diffusion,migration,and microstructure evolution,between PAS and thermal sintering,a deeper understanding of the underlying mechanisms is ***,the results highlight the importance of considering microstructural characteristics in addition to void fraction assessment for accurately estimating mechani-cal *** study enhances our understanding of sintering methods and offers a new perspective on designing process conditions in the PAS process.

关键词： Core-shell nanoparticles Pressure-assisted sintering Molecular dynamics simulation Many-particle model Microstructure Mechanical properties