Sang-Hyun Park
Seoul National University
188Publications
21H-index
1,804Citations
Publications 188
Newest
Published on Feb 1, 2019
Ihsan Ullah , Philip Chikontwe , Sang-Hyun Park21
Estimated H-index: 21
(Seoul National University)
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Published on Jan 1, 2019in IEEE Access 3.56
Euijin Jung (Daegu Gyeongbuk Institute of Science and Technology), Philip Chikontwe (Daegu Gyeongbuk Institute of Science and Technology)+ 3 AuthorsSang-Hyun Park21
Estimated H-index: 21
(Daegu Gyeongbuk Institute of Science and Technology)
Perivascular spaces (PVS) in the human brain are related to various brain diseases. However, it is difficult to quantify them due to their thin and blurry appearance. In this paper, we introduce a deep-learning-based method, which can enhance a magnetic resonance (MR) image to better visualize the PVS. To accurately predict the enhanced image, we propose a very deep 3D convolutional neural network that contains densely connected networks with skip connections. The proposed networks can utilize r...
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Published on Feb 1, 2019in Food Microbiology 4.09
Eun-Jeong Hong1
Estimated H-index: 1
(Seoul National University),
Sang-Hyun Park21
Estimated H-index: 21
(Seoul National University),
Dong-Hyun Kang23
Estimated H-index: 23
(Seoul National University)
Abstract The aim of this study was to inactivate Salmonella Typhimurium loaded onto alfalfa seeds with sequential treatment of hydrogen peroxide, drying, vacuum packaging, and dry heat. Also, we verified the effect of vacuum packaging in dry heat treatment. Populations of Salmonella on alfalfa seeds after sequential treatment were not detected after 8 or 3 h of dry heat treatment at 70 or 73 °C. Salmonella populations including injured cells were also reduced to below the detection limit after 8...
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Published on Mar 1, 2019in Journal of Radioanalytical and Nuclear Chemistry 1.18
Jung Ae Kang4
Estimated H-index: 4
,
Jong Kook Rho2
Estimated H-index: 2
,
Sang-Hyun Park21
Estimated H-index: 21
In this study, a radioisotope (RI) detection-assisted biochip was developed for the evaluation of the inhibitory effects of natural products on protein kinase C (PKC) activity. It was shown that PKC activity was inhibited by coptisine in dose-dependent manner. These findings suggest that the RI detection-assisted protein biochip should be applicable to high throughput screening for kinase inhibitors. It was found that coptisine shows inhibitory effect on PKC, and that the biochip can be used to ...
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Published on Mar 1, 2018in Food Control 3.67
Sang-Hyun Park21
Estimated H-index: 21
(Seoul National University),
Jun-Bae Ahn , Dong-Hyun Kang23
Estimated H-index: 23
(Seoul National University)
Abstract This study was conducted to evaluate the antimicrobial effect of sequential treatment with chlorine dioxide (ClO 2 ) gas and dry heat against Escherichia coli O157:H7 and Salmonella Typhimurium on alfalfa and radish seeds. Inoculated alfalfa and radish seeds were treated with 150 ppmv of ClO 2 gas for 1 h followed by 70 or 80 °C dry heat for 0, 1, 3 or 5 h. Dry heat treatment alone at 80 °C for 5 h resulted in 3.08 and 3.23 log reductions of E. coli O157:H7 and S . Typhimurium on alfalf...
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Published on Jan 1, 2018
Min-Ho Seo5
Estimated H-index: 5
(KAIST),
Sang-Hyun Park21
Estimated H-index: 21
+ 6 AuthorsJun-Bo Yoon30
Estimated H-index: 30
(KAIST)
This paper reports a novel transfer method to fabricate ultralong, fully aligned nanowires, made of diverse materials on a flexible substrate. For the uniform transfer of nanowires made from a wide range of materials, a facile and robust mechanics-based nano-transfer method has been developed. A selectively dry-removable amorphous carbon nano-sacrificial layer between a vacuum-deposited nanowire and the underlying master mold is newly introduced, and it facilitates the robust and reliable mechan...
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Published on Oct 1, 2018in Food Control 3.67
Sang-Hyun Park21
Estimated H-index: 21
(Seoul National University),
Jun-Won Kang8
Estimated H-index: 8
(Seoul National University),
Dong-Hyun Kang23
Estimated H-index: 23
(Seoul National University)
Abstract This study was conducted to evaluate the antimicrobial effect of the combined treatment of UV-C radiation (UVC) and chlorine dioxide (ClO 2 ) gas against Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes on spinach leaves and tomato surfaces and to clarify the mechanisms of the synergistic effect of this combined treatment. In the case of spinach leaves, as treatment time increased the combined treatments of UVC and ClO 2 gas showed additive effects: the total...
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Published on Jan 1, 2018in Medical Image Analysis 5.36
Zhengwang Wu3
Estimated H-index: 3
(University of North Carolina at Chapel Hill),
Yanrong Guo7
Estimated H-index: 7
(University of North Carolina at Chapel Hill)
+ 4 AuthorsDou Shen76
Estimated H-index: 76
(University of North Carolina at Chapel Hill)
Abstract We propose a robust and efficient learning-based deformable model for segmenting regions of interest (ROIs) from structural MR brain images. Different from the conventional deformable-model-based methods that deform a shape model locally around the initialization location, we learn an image-based regressor to guide the deformable model to fit for the target ROI. Specifically, given any voxel in a new image, the image-based regressor can predict the displacement vector from this voxel to...
3 Citations Source Cite
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