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  1. Book ; Online: Artificial Intelligence Methods Applied to Urban Remote Sensing and GIS

    Lee, Chang-Wook / Han, Hyangsun / Lee, Hoonyol / Park, Yu-Chul

    2021  

    Keywords Environmental science, engineering & technology ; groundwater potential ; specific capacity ; machine learning ; boosted tree ; ensemble models ; prototype selection ; river pollution ; supervised classification ; WSN ; probabilistic method ; Monte Carlo simulation ; physical slope model ; Mt. Umyeon landslides ; Seoul ; synthetic aperture radar ; land subsidence ; GIS ; time-series ; Jakarta ; land subsidence susceptibility mapping ; time-series InSAR ; StaMPS processing ; seismic vulnerability map ; DPM method ; Sentinel-1 ; seismic literacy ; neural networks ; urban vegetation ; urban open spaces ; Monterrey Metropolitan Area ; sustainable development ; deep learning ; transfer learning ; artificial intelligence ; remote sensing ; earth observation ; DInSAR ; change detection ; space data science
    Size 1 electronic resource (165 pages)
    Publisher MDPI - Multidisciplinary Digital Publishing Institute
    Publishing place Basel, Switzerland
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021291465
    ISBN 9783036516035 ; 3036516034
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Article ; Online: Structural basis for mitoguardin-2 mediated lipid transport at ER-mitochondrial membrane contact sites.

    Kim, Hyunwoo / Lee, Seowhang / Jun, Youngsoo / Lee, Changwook

    Nature communications

    2022  Volume 13, Issue 1, Page(s) 3702

    Abstract: The endoplasmic reticulum (ER)-mitochondria contact site (ERMCS) is crucial for exchanging biological molecules such as phospholipids and ... ...

    Abstract The endoplasmic reticulum (ER)-mitochondria contact site (ERMCS) is crucial for exchanging biological molecules such as phospholipids and Ca
    MeSH term(s) Endoplasmic Reticulum/metabolism ; Membrane Proteins/metabolism ; Mitochondria/metabolism ; Mitochondrial Membranes/metabolism ; Phospholipids/metabolism
    Chemical Substances Membrane Proteins ; Phospholipids
    Language English
    Publishing date 2022-06-28
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-022-31462-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Glutamine increases stability of TPH1 mRNA via p38 mitogen-activated kinase in mouse mastocytoma cells

    Park, Heeyoung / Lee, Chang-Wook / Kang, Jieun / Sadra, Ali / Huh, Sung-Oh

    Mol Biol Rep. 2023 Jan., v. 50, no. 1 p.267-277

    2023  

    Abstract: Expression changes for tryptophan hydroxylase 1 (TPH1), the rate-limiting enzyme in serotonin synthesis, by environmental glutamine (GLN) were examined in mouse mastocytoma-derived P815-HTR cells. GLN-treated cells exhibited a robust increase in TPH1 ... ...

    Abstract Expression changes for tryptophan hydroxylase 1 (TPH1), the rate-limiting enzyme in serotonin synthesis, by environmental glutamine (GLN) were examined in mouse mastocytoma-derived P815-HTR cells. GLN-treated cells exhibited a robust increase in TPH1 mRNA after a 6 h exposure to GLN. 6-Diazo-5-oxo-L-norleucine (DON), a glutamine-utilizing glutaminase inhibitor, significantly inhibited the GLN-induction of TPH1 mRNA. Nuclear run-on assays and mRNA decay experiments demonstrated that the primary mechanism leading to increased TPH1 mRNA levels was not due to transcriptional changes, but rather due to increased TPH1 RNA stability induced by GLN. Treatment with GLN also led to activation of p38 MAP kinase, but not p42/44 MAPK. In addition, SB203580, a p38 MAP kinase specific inhibitor, completely abolished the GLN-mediated increase of TPH1 mRNA levels, suggesting the pathway stabilizing TPH1 mRNA might be mediated by the activated p38 MAP kinase pathway. Additionally, SB203580 significantly reduced the stability of TPH1 mRNA, and this reduction of the stability was not affected by GLN in the culture medium, implying a sequential signaling from GLN being mediated by p38 MAP kinase, resulting in alteration of TPH1 mRNA stability. TPH1 mRNA stability loss was also dependent on de novo protein synthesis as shown by treatment of cells with a transcriptional/translational blocker. We provide evidence that TPH1 mRNA levels are increased in response to increased exogenous GLN in mouse mastocytoma cells via a stabilization of TPH1 mRNA due to the activity of the p38 MAP kinase.
    Keywords RNA ; culture media ; glutaminase ; glutamine ; mice ; mitogen-activated protein kinase ; protein synthesis ; serotonin ; transcription (genetics) ; tryptophan
    Language English
    Dates of publication 2023-01
    Size p. 267-277.
    Publishing place Springer Netherlands
    Document type Article ; Online
    ZDB-ID 186544-4
    ISSN 1573-4978 ; 0301-4851
    ISSN (online) 1573-4978
    ISSN 0301-4851
    DOI 10.1007/s11033-022-07693-7
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Multitemporal analysis of land subsidence induced by open-pit mining activity using improved combined scatterer interferometry with deep learning algorithm optimization.

    Fadhillah, Muhammad Fulki / Hakim, Wahyu Luqmanul / Lee, Seul-Ki / Lee, Kwang-Jae / Lee, Seung-Jae / Chae, Sung-Ho / Lee, Hoonyol / Lee, Chang-Wook

    Scientific reports

    2024  Volume 14, Issue 1, Page(s) 6311

    Abstract: Mine operational safety is an important aspect of maintaining the operational continuity of a mining area. In this study, we used the InSAR time series to analyze land surface changes using the ICOPS (improved combined scatterers with optimized point ... ...

    Abstract Mine operational safety is an important aspect of maintaining the operational continuity of a mining area. In this study, we used the InSAR time series to analyze land surface changes using the ICOPS (improved combined scatterers with optimized point scatters) method. This ICOPS method combines persistent scatterers (PS) with distributed scatterers (DS) to increase surface deformation analysis's spatial coverage and quality. One of the improvements of this study is the use of machine learning in postprocessing, based on convolutional neural networks, to increase the reliability of results. This study used data from the Sentinel-1 SAR C-band satellite during the 2016-2022 observation period at the Musan mine, North Korea. In the InSAR surface deformation time analysis, the maximum average rate of land subsidence was approximately > 15.00 cm per year, with total surface deformation of 170 cm and 70 cm for the eastern dumping area and the western dumping area, respectively. Analyzing the mechanism of land surface changes also involved evaluating the geological conditions in the Musan mining area. Our research findings show that combining machine learning and statistical methods has great potential to enhance the understanding of mine surface deformation.
    Language English
    Publishing date 2024-03-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-024-56347-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Extraction of Roads Using the Archimedes Tuning Process with the Quantum Dilated Convolutional Neural Network.

    Khan, Mohd Jawed / Singh, Pankaj Pratap / Pradhan, Biswajeet / Alamri, Abdullah / Lee, Chang-Wook

    Sensors (Basel, Switzerland)

    2023  Volume 23, Issue 21

    Abstract: Road network extraction is a significant challenge in remote sensing (RS). Automated techniques for interpreting RS imagery offer a cost-effective solution for obtaining road network data quickly, surpassing traditional visual interpretation methods. ... ...

    Abstract Road network extraction is a significant challenge in remote sensing (RS). Automated techniques for interpreting RS imagery offer a cost-effective solution for obtaining road network data quickly, surpassing traditional visual interpretation methods. However, the diverse characteristics of road networks, such as varying lengths, widths, materials, and geometries across different regions, pose a formidable obstacle for road extraction from RS imagery. The issue of road extraction can be defined as a task that involves capturing contextual and complex elements while also preserving boundary information and producing high-resolution road segmentation maps for RS data. The objective of the proposed Archimedes tuning process quantum dilated convolutional neural network for road Extraction (ATP-QDCNNRE) technology is to tackle the aforementioned issues by enhancing the efficacy of image segmentation outcomes that exploit remote sensing imagery, coupled with Archimedes optimization algorithm methods (AOA). The findings of this study demonstrate the enhanced road-extraction capabilities achieved by the ATP-QDCNNRE method when used with remote sensing imagery. The ATP-QDCNNRE method employs DL and a hyperparameter tuning process to generate high-resolution road segmentation maps. The basis of this approach lies in the QDCNN model, which incorporates quantum computing (QC) concepts and dilated convolutions to enhance the network's ability to capture both local and global contextual information. Dilated convolutions also enhance the receptive field while maintaining spatial resolution, allowing fine road features to be extracted. ATP-based hyperparameter modifications improve QDCNNRE road extraction. To evaluate the effectiveness of the ATP-QDCNNRE system, benchmark databases are used to assess its simulation results. The experimental results show that ATP-QDCNNRE performed with an intersection over union (IoU) of 75.28%, mean intersection over union (MIoU) of 95.19%, F1 of 90.85%, precision of 87.54%, and recall of 94.41% in the Massachusetts road dataset. These findings demonstrate the superior efficiency of this technique compared to more recent methods.
    Language English
    Publishing date 2023-10-28
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s23218783
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: GEN-Click: Genetically Encodable Click Reactions for Spatially Restricted Metabolite Labeling.

    Mishra, Pratyush Kumar / Sharma, Nirmali / Kim, Hyunwoo / Lee, Changwook / Rhee, Hyun-Woo

    ACS central science

    2023  Volume 9, Issue 8, Page(s) 1650–1657

    Abstract: Chemical reactions for ... ...

    Abstract Chemical reactions for the
    Language English
    Publishing date 2023-07-25
    Publishing country United States
    Document type Journal Article
    ISSN 2374-7943
    ISSN 2374-7943
    DOI 10.1021/acscentsci.3c00511
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Creation of Wildfire Susceptibility Maps in Plumas National Forest Using InSAR Coherence, Deep Learning, and Metaheuristic Optimization Approaches

    Nur, Arip Syaripudin / Kim, Yong Je / Lee, Chang-Wook

    Remote Sensing. 2022 Sept. 05, v. 14, no. 17

    2022  

    Abstract: Plumas National Forest, located in the Butte and Plumas counties, has experienced devastating wildfires in recent years, resulting in substantial economic losses and threatening the safety of people. Mapping damaged areas and assessing wildfire ... ...

    Abstract Plumas National Forest, located in the Butte and Plumas counties, has experienced devastating wildfires in recent years, resulting in substantial economic losses and threatening the safety of people. Mapping damaged areas and assessing wildfire susceptibility are necessary to prevent, mitigate, and manage wildfires. In this study, a wildfire susceptibility map was generated using a CNN and metaheuristic optimization algorithms (GWO and ICA) based on images of areas damaged by wildfires. The locations of damaged areas were identified using the damage proxy map (DPM) technique from Sentinel-1 synthetic aperture radar (SAR) data collected from 2016 to 2020. The DPMs’ depicting areas damaged by wildfires were similar to fire perimeters obtained from the California Department of Forestry and Fire Protection (CAL FIRE). Data regarding damaged areas were divided into a training set (50%) for modeling and a testing set (50%) for assessing the accuracy of the models. Sixteen conditioning factors, categorized as topographical, meteorological, environmental, and anthropological factors, were selected to construct the models. The wildfire susceptibility models were evaluated using the area under the receiver operating characteristic (ROC) curve (AUC) and root mean square error (RMSE) analysis. The evaluation results revealed that the hybrid-based CNN-GWO model (AUC = 0.974, RMSE = 0.334) exhibited better performance than the CNN (AUC = 0.934, RMSE = 0.780) and CNN-ICA (AUC = 0.950, RMSE = 0.350) models. Therefore, we conclude that optimizing a CNN with metaheuristics considerably increased the accuracy and reliability of wildfire susceptibility mapping in the study area.
    Keywords forestry ; models ; synthetic aperture radar ; wildfires ; California ; Plumas National Forest
    Language English
    Dates of publication 2022-0905
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2513863-7
    ISSN 2072-4292
    ISSN 2072-4292
    DOI 10.3390/rs14174416
    Database NAL-Catalogue (AGRICOLA)

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  8. Article: Mapping of Post-Wildfire Burned Area Using a Hybrid Algorithm and Satellite Data: The Case of the Camp Fire Wildfire in California, USA

    Syifa, Mutiara / Panahi, Mahdi / Lee, Chang-Wook

    Remote Sensing. 2020 Feb. 13, v. 12, no. 4

    2020  

    Abstract: On November 8, 2018, a devastating wildfire, known as the Camp Fire wildfire, was reported in Butte County, California, USA. Approximately 88 fatalities ensued, and 18,804 structures were damaged by the wildfire. As a response to this destructive ... ...

    Abstract On November 8, 2018, a devastating wildfire, known as the Camp Fire wildfire, was reported in Butte County, California, USA. Approximately 88 fatalities ensued, and 18,804 structures were damaged by the wildfire. As a response to this destructive wildfire, this study generated a pre- and post-wildfire maps to provide basic data for evacuation and mitigation planning. This study used Landsat-8 and Sentinel-2 imagery to map the pre- and post-wildfire conditions. A support vector machine (SVM) optimized by the imperialist competitive algorithm (ICA) hybrid model was compared with the non-optimized SVM algorithm for classification of the pre- and post-wildfire map. The SVM–ICA produced a better accuracy (overall accuracies of 83.8% and 83.6% for pre- and post-wildfire using Landsat-8 respectively; 90.8% and 91.8% for pre- and post-wildfire using Sentinel-2 respectively), compared to SVM without optimization (overall accuracies of 80.0% and 78.9% for pre- and post-wildfire using Landsat-8 respectively; 83.3% and 84.8% for pre- and post-wildfire using Sentinel-2 respectively. In total, eight pre- and post-wildfire burned area maps were generated; these can be used to assess the area affected by the Camp Fire wildfire as well as for wildfire mitigation planning in the future.
    Keywords Landsat ; death ; models ; planning ; remote sensing ; support vector machines ; wildfires ; California
    Language English
    Dates of publication 2020-0213
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2513863-7
    ISSN 2072-4292
    ISSN 2072-4292
    DOI 10.3390/rs12040623
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Glutamine increases stability of TPH1 mRNA via p38 mitogen-activated kinase in mouse mastocytoma cells.

    Park, Heeyoung / Lee, Chang-Wook / Kang, Jieun / Sadra, Ali / Huh, Sung-Oh

    Molecular biology reports

    2022  Volume 50, Issue 1, Page(s) 267–277

    Abstract: Expression changes for tryptophan hydroxylase 1 (TPH1), the rate-limiting enzyme in serotonin synthesis, by environmental glutamine (GLN) were examined in mouse mastocytoma-derived P815-HTR cells. GLN-treated cells exhibited a robust increase in TPH1 ... ...

    Abstract Expression changes for tryptophan hydroxylase 1 (TPH1), the rate-limiting enzyme in serotonin synthesis, by environmental glutamine (GLN) were examined in mouse mastocytoma-derived P815-HTR cells. GLN-treated cells exhibited a robust increase in TPH1 mRNA after a 6 h exposure to GLN. 6-Diazo-5-oxo-L-norleucine (DON), a glutamine-utilizing glutaminase inhibitor, significantly inhibited the GLN-induction of TPH1 mRNA. Nuclear run-on assays and mRNA decay experiments demonstrated that the primary mechanism leading to increased TPH1 mRNA levels was not due to transcriptional changes, but rather due to increased TPH1 RNA stability induced by GLN. Treatment with GLN also led to activation of p38 MAP kinase, but not p42/44 MAPK. In addition, SB203580, a p38 MAP kinase specific inhibitor, completely abolished the GLN-mediated increase of TPH1 mRNA levels, suggesting the pathway stabilizing TPH1 mRNA might be mediated by the activated p38 MAP kinase pathway. Additionally, SB203580 significantly reduced the stability of TPH1 mRNA, and this reduction of the stability was not affected by GLN in the culture medium, implying a sequential signaling from GLN being mediated by p38 MAP kinase, resulting in alteration of TPH1 mRNA stability. TPH1 mRNA stability loss was also dependent on de novo protein synthesis as shown by treatment of cells with a transcriptional/translational blocker. We provide evidence that TPH1 mRNA levels are increased in response to increased exogenous GLN in mouse mastocytoma cells via a stabilization of TPH1 mRNA due to the activity of the p38 MAP kinase.
    MeSH term(s) Mice ; Animals ; Mitogens ; Glutamine ; RNA, Messenger/genetics ; p38 Mitogen-Activated Protein Kinases/genetics ; p38 Mitogen-Activated Protein Kinases/metabolism ; Mastocytoma ; Enzyme Inhibitors/pharmacology ; Tryptophan Hydroxylase/genetics
    Chemical Substances Mitogens ; Glutamine (0RH81L854J) ; RNA, Messenger ; p38 Mitogen-Activated Protein Kinases (EC 2.7.11.24) ; Enzyme Inhibitors ; Tph1 protein, mouse (EC 1.14.16.4) ; Tryptophan Hydroxylase (EC 1.14.16.4)
    Language English
    Publishing date 2022-11-04
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 186544-4
    ISSN 1573-4978 ; 0301-4851
    ISSN (online) 1573-4978
    ISSN 0301-4851
    DOI 10.1007/s11033-022-07693-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Yeast lunapark regulates the formation of

    Jang, Eunhong / Lee, Miriam / Yoon, So Young / Lee, Sang Soo / Park, Jongseo / Jin, Mi Sun / Eom, Soo Hyun / Lee, Changwook / Jun, Youngsoo

    iScience

    2023  Volume 26, Issue 12, Page(s) 108386

    Abstract: The endoplasmic reticulum (ER) consists of the nuclear envelope and a connected peripheral network of tubules and interspersed sheets. The structure of ER tubules is generated and maintained by various proteins, including reticulons, DP1/Yop1p, atlastins, ...

    Abstract The endoplasmic reticulum (ER) consists of the nuclear envelope and a connected peripheral network of tubules and interspersed sheets. The structure of ER tubules is generated and maintained by various proteins, including reticulons, DP1/Yop1p, atlastins, and lunapark. Reticulons and DP1/Yop1p stabilize the high membrane curvature of ER tubules, and atlastins mediate homotypic membrane fusion between ER tubules; however, the exact role of lunapark remains poorly characterized. Here, using isolated yeast ER microsomes and reconstituted proteoliposomes, we directly examined the function of the yeast lunapark Lnp1p for yeast atlastin Sey1p-mediated ER fusion and found that Lnp1p inhibits Sey1p-driven membrane fusion. Furthermore, by using a newly developed assay for monitoring
    Language English
    Publishing date 2023-11-02
    Publishing country United States
    Document type Journal Article
    ISSN 2589-0042
    ISSN (online) 2589-0042
    DOI 10.1016/j.isci.2023.108386
    Database MEDical Literature Analysis and Retrieval System OnLINE

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