Jeong‐Min Kim

Korea Disease Control and Prevention Agency

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Co-Authors

Eun‐Jin Kim

Ajou University

Myung Guk Han

Korea Disease Control and Prevention Agency

Cheon‐Kwon Yoo

Korea Disease Control and Prevention Agency

Heui Man Kim

Korea Disease Control and Prevention Agency

Ki-Tae Kim

Lam Research (United States)

Il‐Hwan Kim

Korea Disease Control and Prevention Agency

Nam‐Joo Lee

Korea Disease Control and Prevention Agency

Ae Kyung Park

Jeonbuk National University

Yoon‐Seok Chung

Korea Disease Control and Prevention Agency

Jee Eun Rhee

Korea Disease Control and Prevention Agency

Cooperative Institutions

Korea Disease Control and Prevention Agency

118

Korea Center for Disease Control and Prevention

Seoul National University

Korea National Institute of Health

Korea University

Yonsei University

Government of the Republic of Korea

Sungkyunkwan University

Samsung (South Korea)

Hallym University

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The Spirituality on the Conversion and Hymns of Charles Wesley

Theology and praxis (2023)

Jeong‐Min Kim

포스트 코로나 시대를 살아가는 현대 교회와 교인들은 자신의 영성을 돌아보고 성 찰하는 것이 시급하다. 특히 코로나로 인해 교회와 하나님으로부터 멀어진 영혼들을 다시 그리스도께로 돌아오게 해야 하는 사명이 막중하다. 이를 위해 필자는 현대 교 회와 교인들에게 찰스 웨슬리의 회심 사건을 소개하고자 한다. 찰스 웨슬리는 18세기 메소디즘 부흥운동에 있어서 중요한 역할을 하였다. 특히 1738년 5월 21일에 있었던 그의 회심 사건은 메소디즘 탄생의 도화선에 불을 붙이는 사건이었다. 그럼에도 불구 하고 찰스 웨슬리가 어떻게 회심을 하게 되었는지는 잘 알려지지 않았다. 이에 필자 는 찰스 웨슬리의 회심과 회심 전후의 찬송시 연구를 통해 그의 회심 사건을 재조명 하고자 한다. 찰스 웨슬리의 회심 사건은 무척 역동적이고 신비롭다. 그의 회심은 1738년 5월 21 일 성령강림절 주일이었다. 하지만 회심의 시작은 6개월 전부터이다. 찰스에게 있어서 1737년 11월 20일~1738년 5월 20일의 기간은 ‘정화의 단계’(Purgation) 곧 '고통과 분 투의 상태'(a state of pain and effort)였다. 이 기간 동안 찰스는 자신의 죄인 됨과 육체적 연약함으로 인한 유한함과 불완전함을 깨달았다. 찰스는 이 문제를 극복하기 위해 할 수 있는 모든 방편을 동원한다. 그리고 마침내 1738년 5월 21일 주일 오전에 찰스는 극적인 회심을 체험하게 된다. 하지만 그의 회심은 일회적인 사건이 아니었다. 찰스는 21일부터 25일까지의 일련의 회심 사건들을 통해 그리스도의 사랑으로 역사하 는 체험적 영성을 형성할 수 있었다. 찰스의 회심을 통해 알 수 있는 사실은, 회심은 영성의 종착역이 아니라는 것이다. 그리스도인의 완전으로 가는 과정이다. 회심 체험 후의 찰스는 참된 자유를 매일 경 험하였다. 그렇다고 해서 악의 유혹이나 시험이 없어진 것은 아니었다. 오히려 이전보 다 더 영적으로 민감해졌기 때문에 늘 깨어있음을 유지하였다. 이와 같은 찰스의 회 심 과정, 즉 구원의 확증을 얻고자 했던 영혼의 간절한 몸부림은 오늘을 살아가는 그 리스도인들에게 깊은 울림과 도전을 준다.

10.14387/jkspth.2023.87.193

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Effects of Cu and Zr Addition on the Tensile Properties, Corrosion Characteristics and Interfacial Compounds with Cast Iron of Al-Si-Mg Alloy for Compound Casting

Korean Journal of Materials Research (2023)

Kyoung-Min Min Ki-Chae Jung Je-Sik Shin Jeong‐Min Kim

In order to broaden the range of application of light weight aluminum alloys, it is necessary to enhance the mechanical properties of the alloys and combine them with other materials, such as cast iron. In this study, the effects of adding small amounts of Cu and Zr to the Al-Si-Mg based alloy on tensile properties and corrosion characteristics were investigated, and the effect of the addition on the interfacial compounds layer with the cast iron was also analyzed. Although the tensile strength of the Al-Si-Mg alloy was not significantly affected by the additions of Cu and Zr, the corrosion resistance in 3.5 %NaCl solution was found to be somewhat lowered in this research. The influence of Cu and Zr addition on the type and thickness of the interfacial compounds layer formed during compound casting with cast iron was not significant, and the main interfacial compounds were identified to be Al5FeSi and Al8Fe2Si phases, as in the case of the Al-Si-Mg alloys.

10.3740/mrsk.2023.33.1.8

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논문 : 다이캐스팅용 Al-Zn-Mg-Fe 합금의 특성에 미치는 Zn 및 Mg 첨가의 영향

한국주조공학회지 (주조) (2013)

김기태 임영석 신제식 Se‐Hyun Ko Jeong‐Min Kim

The effects of alloying elements on the solidification characteristics, microstructure, thermal conductivity, and tensile strength of Al-Zn-Mg-Fe alloys were investigated for the development of high strength and high thermal conductivity aluminum alloy for die casting. The amounts of Zn and Mg in Al-Zn-Mg-Fe alloys had little effect on the liquidus / solidus temperature, the latent heat for solidification, the energy release for solidification and the fluidity of Al-Zn-Mg-Fe alloys. Thermo-physical modeling of Al-Zn-Mg-Fe alloys by the JMatPro orogram showed MgZn2, AICuMgZn and Al3Fe phases in the microstructure of the alloys. Increased amounts of Mg in Al-Zn-Mg-Fe alloys resulted in phase transformation, such as MgZn2⇒MgZn2+ AICuMgZn⇒AICuMgZn in the microstructure of the alloys. Increased amounts of Zn and Mg in Al-Zn-Mg-Fe alloys resulted in a gradual reduction of the ther-mal conductivity of the alloys. Increased amounts of Zn and Mg in Al-Zn-Mg-Fe alloys had little effect on the tensile strength of the alloys.

Liquidus

Solidus

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Influence of Ag Addition on the Mechanical Properties and Electrical Conductivity of Cu-Mg-P Alloys

Journal of the Korean Society for Heat Treatment (2010)

Jeong‐Min Kim Joon Sik Park Ki-Tae Kim

The microstructure of Cu-Mg-P alloy sheet consisted of Cu matrix and very fine MgP precipitate, and it has been observed that the microstructure remains virtually unchanged by Ag additions up to 2%. Ag solutes were dissolved into the matrix and hardly found in the precipitates. The hardness increased with increase of the Ag content, while the conductivity slightly decreased. Strain hardening through cold rolling was found to be effective in improving the hardness, especially in high-Ag alloys. Aging treatment was conducted either before the first cold rolling or between the first and the final cold rolling, and the conductivity was significantly higher at the former case, regardless of the Ag content. Softening of Cu-Mg-P alloy sheet was remarkable above and the Ag content did not show any significant effect on it.

Precipitation hardening

Hardening (computing)

10.12656/jksht.2010.23.1.010

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Power Flow Analysis for Manufacturing of Planetary Gears in a 8-Speed Automatic Transmission (I): 1-3 Speeds

Journal of the Korean Society of Manufacturing Process Engineers (2016)

Kyoung‐Jin Lee Jeong‐Min Kim

In this paper, we analyze the power flow of an eight-speed automatic transmission by using a lever analogy for the manufacturing of planetary gears. The results indicate that the engine power is passed down to the carrier and ring gear in the first double pinion planetary gear (DPPG1), and to the sun gear, carrier, and ring gear in DPPG3 for the first speed. Although the power flow is similar in the second speed, the power circulation occurs in the second single pinion planetary gear (SPPG2). For the third speed, the engine power is passed from the carrier to the ring gear in DPPG, at which point the power is split between the sun gears of SPPG2 and DPPG3.

Pinion

Non-circular gear

Automatic transmission

Gear train

Gear ratio

Lever

Power transmission

10.14775/ksmpe.2016.15.5.048

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Microstructure and Castability of Mg-Al-La Alloys for High Conductivity Applications

International Journal of Metalcasting (2015)

Jeong‐Min Kim Seung‐Jin Lee

Castability

Structural material

10.1007/bf03355619

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The Production of Metal Matrix Composites by Using the EPC Process;Particle Behavior at Solid-Liquid Interface

Journal of the Korea Foundry Society (1997)

Jong-Ik Park Young-Seob Kim Jeong‐Min Kim Dong-Gyu Kim

A possibility of production of aluminium matrix composites by using the lost foam process was investigated. Silicon carbide particles, graphite particles, and stainless steel wires were used as reinforcement materials. The reinforcement materials were introduced to the polystyrene to form patterns via injection molding process. The results obtained from this experiment can be summarized as follows. In Al/SiCp system, the particles with the radius of and over were entrapped in the matrix in the case of upward freezing of which solidification direction was opposite to floating direction of the particles. And few particles were entrapped in the matrix in downward freezing. In Al/graphite system, almost no particles were entrapped in the matrix except the area chill attatched. When the thickness of polystyrene slice was 4mm in Al/stainless steel wire system, the floating tendency of fibers was observed to increase as the distance from the ingate was increased.

Particle (ecology)

Polystyrene

Matrix (chemical analysis)

Molding (decorative)

Source

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Power Flow Analysis for Manufacturing of Planetary Gears in an 8-speed Automatic Transmission (II): 4-8 Speeds

Journal of the Korean Society of Manufacturing Process Engineers (2016)

Kyoung‐Jin Lee Jeong‐Min Kim

Automatic transmission

Power transmission

10.14775/ksmpe.2016.15.5.057

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Genetic Analysis of the Measles Virus From the Outbreaks in South Korea, 2019

Frontiers in Microbiology (2021)

Jeong‐Min Kim Sehee Park Su Jin Kim Kye Ryeong Park Jin-Sook Wang

Three genotypes (B3, D8, and H1) of the measles virus (MeV) have recently caused global outbreaks. In Korea, four measles outbreaks were reported during 2018-2019 and most patients were infants and health care workers in their 20s and 30s. To investigate the genetic characteristics and molecular epidemiology of the outbreaks, we analyzed the sequence of MeVs by targeting the N-450, MF-NCR, and/or H gene regions. Considering their phylogenetic relationships, besides the N-450 and MF-NCR sequences that are commonly used for genotyping MeVs, the MF-NCR-H sequence was related to the dynamics for identifying the transmission of MeVs. Phylogenetic clustering patterns reconstructed from the MF-NCR-H sequence set revealed that genotype D8 caused three of the four outbreaks, while B3 seemed to have induced the fourth outbreak. These results suggest that the MF-NCR-H sequence is useful for rapid confirmation of measles outbreaks and to identify the epidemiological routes of MeVs.

Molecular Epidemiology

10.3389/fmicb.2021.763107

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Genomic Investigation of the Coronavirus Disease-2019 Outbreak in the Republic of Korea

Research Square (Research Square) (2020)

Jeong‐Min Kim Sung Yong Park Dae-Sang Lee Jun-Sub Kim Young-Joon Park

Abstract The South Korean government effectively contained the coronavirus disease-2019 (COVID-19) outbreak primarily associated with a religious group. We conducted SARS-CoV-2 whole genome sequencing of 66 cases to investigate connections among the initial South Korean cases and the religious group outbreak. We assessed the accuracy of genomic investigation by comparing the whole genome sequences with comprehensive contact tracing records. Five transmission clusters were estimated among the 15 initial cases. The six close-contact cases and two potential exposure pairs identified by contact tracing showed two or fewer nucleotide base differences. Additionally, we identified two transmission clusters from the religious group outbreak that were phylogenetically distinct from the initial clusters, sharing common G11083T, G26144T, and C14805T markers. The strain closest to the two religious group clusters was identified from a pair of identical sequences isolated from individuals who traveled from Wuhan to Italy. Our findings provide insights into the origins of community spread of COVID-19.

Contact tracing

Coronavirus

10.21203/rs.3.rs-65856/v1

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