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947 results on '"Park, Young Joon"'

15. Effectiveness of Second mRNA COVID-19 Booster Vaccine in Immunocompromised Persons and Long-Term Care Facility Residents

Author

Kim, Yoo-Yeon, Choe, Young June, Kim, Jia, Kim, Ryu Kyung, Jang, Eun Jung, Park, Seon Kyeong, Lim, Do-Sang, Yi, Seonju, Lee, Sangwon, Kwon, Geun-Yong, Shin, Jee Yeon, Choi, Sang-Yoon, Jeong, Mi Jin, and Park, Young-Joon

Subjects
Nursing home patients -- Care and treatment, Long-term care facilities -- Services, Health
Abstract

Booster doses of mRNA vaccines have been shown to reduce the risk for severe SARS-CoV-2 infection (1,2); however, protection wanes a few months after vaccination, particularly in high-risk populations (3,4). [...]

Published
2022
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20. Household Secondary Attack Rates of SARS-CoV-2 Omicron Variant, South Korea, February 2022

Author

Lim, Do Sang, Choe, Young June, Kim, Young Man, Lee, Sang Eun, Jang, Eun Jung, Kim, Jia, and Park, Young-Joon

Subjects
Households -- Safety and security measures -- Health aspects, Company distribution practices, Health
Abstract

Since its initial detection in November 2021, the SARS-CoV-2 B.1.1.529 (Omicron) variant has become the dominant strain in South Korea. Its emergence led to a large increase in the number [...]

Published
2022
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21. Clear the Fog: Combat Value Assessment in Incomplete Information Games with Convolutional Encoder-Decoders

Author

Kahng, Hyungu, Jeong, Yonghyun, Cho, Yoon Sang, Ahn, Gonie, Park, Young Joon, Jo, Uk, Lee, Hankyu, Do, Hyungrok, Lee, Junseung, Choi, Hyunjin, Yoon, Iljoo, Lee, Hyunjae, Jun, Daehun, Bae, Changhyeon, and Kim, Seoung Bum

Subjects
Computer Science - Artificial Intelligence, Computer Science - Machine Learning
Abstract

StarCraft, one of the most popular real-time strategy games, is a compelling environment for artificial intelligence research for both micro-level unit control and macro-level strategic decision making. In this study, we address an eminent problem concerning macro-level decision making, known as the 'fog-of-war', which rises naturally from the fact that information regarding the opponent's state is always provided in the incomplete form. For intelligent agents to play like human players, it is obvious that making accurate predictions of the opponent's status under incomplete information will increase its chance of winning. To reflect this fact, we propose a convolutional encoder-decoder architecture that predicts potential counts and locations of the opponent's units based on only partially visible and noisy information. To evaluate the performance of our proposed method, we train an additional classifier on the encoder-decoder output to predict the game outcome (win or lose). Finally, we designed an agent incorporating the proposed method and conducted simulation games against rule-based agents to demonstrate both effectiveness and practicality. All experiments were conducted on actual game replay data acquired from professional players., Comment: 7 pages, 4 figures, 2 tables

Published
2018

24. Serial Intervals and Household Transmission of SARS-CoV-2 Omicron Variant, South Korea, 2021

Author

Song, Jin Su, Lee, Jihee, Kim, Miyoung, Jeong, Hyeong Seop, Kim, Moon Su, Kim, Seong Gon, Yoo, Han Na, Lee, Ji Joo, Lee, Hye Young, Lee, Sang-Eun, Kim, Eun Jin, Rhee, Jee Eun, Kim, Il Hwan, and Park, Young-Joon

Subjects
Disease transmission -- Statistics -- Forecasts and trends, Market trend/market analysis, Company distribution practices, Health
Abstract

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron (B.1.1.529) variant of concern has been confirmed on all continents and has spread through communities around the world at unprecedented speed [...]

Published
2022
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25. SARS-CoV-2 Breakthrough Infections after Introduction of 4 COVID-19 Vaccines, South Korea, 2021

Author

Yi, Seonju, Choe, Young June, Kim, Jia, Kim, Yoo-Yeon, Kim, Ryu Kyung, Jang, Eun Jung, Lim, Do Sang, Byeon, Hye Ryeon, Lee, Sangwon, Park, Eonjoo, Kim, Seung-Jin, and Park, Young-Joon

Subjects
Health
Abstract

Since their rollout, vaccines have been highly effective globally in controlling coronavirus disease (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) (1). Breakthrough infections have been reported in [...]

Published
2022
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36. Very Early Pulsed Dye Laser Intervention for Optimal Cosmetic Outcome in Post-Thyroidectomy Scars

Author

Kim,Yul Hee, Kim,Han-Seul, Kim,Hyeung Kyoo, Kim,Soo Young, Lee,Jeonghun, Kim,You Chan, Park,Young Joon, Kim,Yul Hee, Kim,Han-Seul, Kim,Hyeung Kyoo, Kim,Soo Young, Lee,Jeonghun, Kim,You Chan, and Park,Young Joon

Abstract

Yul Hee Kim,1 Han-Seul Kim,1 Hyeung Kyoo Kim,2 Soo Young Kim,2 Jeonghun Lee,2 You Chan Kim,1 Young Joon Park1 1Department of Dermatology, Ajou University School of Medicine, Suwon, Republic of Korea; 2Department of Surgery, Ajou University School of Medicine, Suwon, Republic of KoreaCorrespondence: Young Joon Park, Department of Dermatology, Ajou University Hospital, 164, World Cup-ro, Yeongtong-gu, Suwon-si, Gyeonggi-Do, Suwon, Republic of Korea, Tel +82-31-219-5187, Email aro@ajou.ac.krPurpose: Early intervention of surgical scars with a pulsed dye laser is known to effectively prevent pathologic scars. Despite multiple reports on the effectiveness of the treatment, very few studies have demonstrated its appropriate initiation timing. In this study, our objective was to determine the optimal timing for initiating laser treatment following thyroidectomy.Methods: This study retrospectively analyzed 91 patients undergoing pulsed dye laser treatment post-thyroidectomy, grouping them by treatment initiation timing. The patients underwent treatment at intervals of 3– 4 weeks with at least five sessions. Those with a high pliability score were injected with intralesional corticosteroids. The Antera 3D® skin imaging analyzer was used to assess biophysical parameters.Results: The total Vancouver Scar Scale score significantly reduced after treatment in all groups. The Vancouver Scar Scale score reduction rate was significantly higher after treatment in the group for which the treatment was initiated within 3 weeks of surgery. The pigmentation and erythema score analyzed by Antera 3D® was also lower in this group.Conclusion: Early intervention using a pulsed dye laser within 3 weeks of thyroidectomy can substantially inhibit pathological scar development, providing physicians with a guide for optimal treatment commencement.Keywords: hypertrophic scars, laser treatment of scar, scar, pulsed dye laser

Published
2024

37. Surveillance of COVID-19--Associated Multisystem Inflammatory Syndrome in Children, South Korea

Author

Choe, Young June, Choi, Eun Hwa, Choi, Jong Woon, Eun, Byung Wook, Eun, Lucy Youngmin, Kim, Yae-Jean, Kim, Yeo Hyang, Kim, Young A., Kim, Yun-Kyung, Kwak, Ji Hee, Lee, Hyuk Min, Lee, Hyunju, Lee, Joon Kee, Park, June Dong, Kim, Eun-Jin, Park, Young Joon, Gwack, Jin, and Lee, Sang Won

Subjects
Sentinel health events -- Methods -- Demographic aspects, Company distribution practices, Health
Abstract

Amid the coronavirus disease (COVID-19) pandemic, multisystem inflammatory syndrome in children (MIS-C) has emerged as a major concern globally (1). MIS-C features clinical characteristics that overlap with Kawasaki disease, including [...]

Published
2021
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38. Time from Exposure to Diagnosis among Quarantined Close Contacts of SARS-CoV-2 Omicron Variant Index Case-Patients, South Korea

Author

Lee, Hye Ryeon, Choe, Young June, Jang, Eun Jung, Kim, Jia, Lee, Ji Joo, Lee, Hye Young, Park, Hanul, Lee, Sang Eun, Kim, Moonsu, Kim, Seonggon, Yoo, Hanna, Lee, Ju-Hyung, Ahn, Hyun Jeong, Go, Mi-Young, Kim, Won Ick, Lee, Bu Sim, Ko, Hwa-Pyeong, Yu, Jeonghee, Kim, Eun-Young, Jeong, Hyoseon, Chung, Jae-Hwa, Song, Jin Su, Lee, Jihee, Kim, Mi Young, and Park, Young-Joon

Subjects
Medical research, Medicine, Experimental, Infectious disease incubation period -- Research, Quarantine -- Research, Health
Abstract

Since its identification in November 2021, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant of concern has rapidly spread across the globe (1). In South Korea, the first [...]

Published
2022
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39. Community Transmission of SARS-CoV-2 Omicron Variant, South Korea, 2021

Author

Kim, Eun-Young, Choe, Young June, Park, Hanul, Jeong, Hyoseon, Chung, Jae-Hwa, Yu, Jeonghee, Ko, Hwa-Pyeong, Ahn, Hyun Jeong, Go, Mi-Young, Lee, Ju-Hyung, Kim, Won Ick, Lee, Bu Sim, Kim, Sooyeon, Yu, Mi, Kim, Jia, Lee, Hye Ryeon, Jang, Eun Jung, Lee, Ji Joo, Lee, Hye Young, Kim, Jong Mu, Choi, Ji Hyun, Lee, Sang Eun, Kim, Il-Hwan, Park, Ae Kyung, Rhee, Jee Eun, Kim, Eun-Jin, Lee, Sangwon, and Park, Young-Joon

Subjects
Epidemics -- Case studies -- South Korea, Disease transmission -- Case studies, Health
Abstract

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) B.1.1.529 (Omicron) variant of concern has been suggested to be more transmissible than previous variants of concern (1). We describe an outbreak [...]

Published
2022
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40. Development of a Simulation Model for a New Rotary Engine to Optimize Port Location and Operating Conditions Using GT-POWER.

Author

Kim, Young-Jic, Park, Young-Joon, Park, Tae-Joon, and Lee, Chang-Eon

Subjects
*ROTARY combustion engines, *WASTE gases, *ENERGY consumption, *ROTARY pumps, *SIMULATION methods & models
Abstract

The objective of this study is to develop a 1D CFD simulation model to identify the optimal design parameters, using GT-POWER prior to the optimization of a new rotary engine derived from a three-lobe gerotor pump (GP3 RTE) based on 3D CFD simulation. The models were compared based on their respective development stages (steps 1–4) to ascertain the impact of each parameter on performance. The step 4 model, which exhibited a similar trend to that observed in the 3D CFD results, was selected for further analysis and validation. The developed model accurately predicted GP3 RTE performance in terms of fuel consumption, indicated power, efficiency, and exhaust gas reticulation (EGR) behavior, approaching the accuracy of the CONVERGE model. Furthermore, the optimal intake/exhaust port locations and operating conditions of the GP3 RTE were derived using the developed step 4 model. The model provided a convenient and powerful tool for obtaining basic information regarding the unique behavior of the GP3 RTE, thereby enabling the optimization of the design parameters without the necessity for time-consuming three-dimensional design modifications. [ABSTRACT FROM AUTHOR]

Published
2024
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47. Contact Tracing during Coronavirus Disease Outbreak, South Korea, 2020

Author

Park, Young Joon, Choe, Young June, Park, Ok, Park, Shin Young, Kim, Young-Man, Kim, Jieun, Kweon, Sanghui, Woo, Yeonhee, Gwack, Jin, Kim, Seong Sun, Lee, Jin, Hyun, Junghee, Ryu, Boyeong, Jang, Yoon Suk, Kim, Hwami, Shin, Seung Hwan, Yi, Seonju, Lee, Sangeun, Kim, Hee Kyoung, Lee, Hyeyoung, Jin, Yeowon, Park, Eunmi, Choi, Seung Woo, Kim, Miyoung, Song, Jeongsuk, Choi, Si Won, Kim, Dongwook, Jeon, Byoung-Hak, Yoo, Hyosoon, and Jeong, Eun Kyeong

Subjects
Social distancing (Public health), Disease transmission -- Prevention, Coronaviruses, Public health, Epidemiology, COVID-19 -- Prevention, Contact tracing, Health
Abstract

Effective contact tracing is critical to controlling the spread of coronavirus disease (COVID-19) (1). South Korea adopted a rigorous contact-tracing program comprising traditional shoe-leather epidemiology and new methods to track [...]

Published
2020
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48. Coronavirus Disease Outbreak in Call Center, South Korea

Author

Park, Shin Young, Kim, Young-Man, Yi, Seonju, Lee, Sangeun, Na, Baeg-Ju, Kim, Chang Bo, Kim, Jung-il, Kim, Hea Sook, Kim, Young Bok, Park, Yoojin, Huh, In Sil, Kim, Hye Kyung, Yoon, Hyung Jun, Jang, Hanaram, Kim, Kyungnam, Chang, Yeonhwa, Kim, Inhye, Lee, Hyeyoung, Gwack, Jin, Kim, Seong Sun, Kim, Miyoung, Kweon, Sanghui, Choe, Young June, Park, Ok, Park, Young Joon, and Jeong, Eun Kyeong

Subjects
Quarantine -- Health aspects -- Analysis, Disease transmission -- Health aspects -- Analysis, Coronaviruses -- Analysis -- Health aspects, Call centers -- Analysis -- Health aspects, Epidemiology -- Analysis -- Health aspects, COVID-19 -- Analysis -- Health aspects, Health
Abstract

Since the first imported case of coronavirus disease (COVID-19) was confirmed in South Korea on January 20, 2020, a sharp increase in the number of COVID-19 cases has been observed, [...]

Published
2020
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