The Relationship Among Social Support, Career Adaptability, Psychological Capital and Career Preparation Behavior of Judo Kata Major

Wonhee Lee(Wonhee Lee),Wookyung Sun(Wookyung Sun) J-INSTITUTE 2022 International Journal of Martial Arts Vol.7 No.2

Purpose: The purpose of this study is to investigate the relationship between social support, career adapta-bility, psychological capital, and career preparation behavior of the majored in Judo kata in 2021.To achieve the purpose of this study, the following detailed goals were set. Method: This study collected data from students who completed Judo kata class among students majoring in Judo kata in 2021 to investigate the relationship between Judo kata major's social support, career adaptability, psychological capital and career preparation behavior The data were collected by the researcher in the class of judo kata major after the guidance professor of the university Judo kata explained the purpose and purpose of the study in advance and received permission to collect the data. The data used in the actual analysis was 480 copies in a row, or the contents of the questionnaire were partially omitted. 78 questionnaires were excluded. Results: Therefore, universities need to introduce and implement various career preparation programs to in-crease students' psychological capital and actively implement information collection for their careers to achieve their goals. If they can invest time in consultation rather than interest or support for students, or provide financial support, they will be able to prepare for proper career. Conclusion: In relation to social support and career, environmental factors and educational considerations should be followed up on other departments, and social support, career adaptability, psychological capital, and career preparation behavior according to martial arts or physical education departments should be conducted more reliable research.

A Study on the Cultural Interpretation of Taekwondo Origin and Okinawa Origin

Wonhee Lee(Wonhee Lee),Ilhoon Song(Ilhoon Song) J-INSTITUTE 2022 International Journal of Martial Arts Vol.7 No.2

Purpose: The purpose of this study is to examine and analyze the cultural base of the Three Taegeuk in depth in Subak, karate(dangsu), Goryeo, Joseon, and Ryukyuguk, and to present the identity of the historical and cul-tural aspects of Taekwondo. Method: The method of this study was to examine and analyze the cultural base of Taekwondo of Subak and karate in depth, to present the identity of Taekwondo in the historical and cultural aspects, and to present the traditionality and legitimacy of Taekwondo in the national flag. Results: The re-establishment of Taekwondo is essential due to the theory of origin of Okinawa, but most Taekwondo people lack the recognition of historicality. Okinawa had close interaction with us in the Joseon Dyn-asty. This means that there are some reliably authentic documents and relics that are related to Subaks and party Subaks, that is, there should be an in-depth analysis on the historical recognition of the origin theory of Taekwondo in Okinawa. This can be a medium to open historical horizons to Taekwondo people. Conclusion: The re-establishment of Taekwondo is essential due to the origin of Taekwondo in Okinawa, but most Taekwondo people are very lacking in historical awareness. Okinawa had close exchanges with us during the Joseon Dynasty, and when we saw it, there were credible ancient documents and artifacts that were related to Subaks and party trees. If Taekwondo academics do not present this, and go to this state, it may bring about a crisis of identity for the national Taekwondo physical education culture. Therefore, there should be a clear argument and a clear argument about Taekwondo history of Taekwondo history. Furthermore, we can present the right historical values and instill the right Taekwondo history education to our descendants.

Neuronal differentiation of human mesenchymal stem cells in response to the domain size of graphene substrates

Lee, Yoo-Jung,Seo, Tae Hoon,Lee, Seula,Jang, Wonhee,Kim, Myung Jong,Sung, Jung-Suk Wiley Blackwell (John Wiley Sons) 2018 Journal of biomedical materials research. Part A Vol.106 No.1

Selenium-infiltrated mesoporous carbon composite cathode for a high-capacity lithium-chalcogen battery: Effects of carbon structure and dopant on the rate-capability and cyclic stability

Lee, Seungmin,Lee, Jiyeon,Kim, Wonhee,Kim, Hyeong-Jin,Pak, Chanho,Lee, Jung Tae,Eom, KwangSup Elsevier 2018 Journal of Power Sources Vol.408 No.-

<P><B>Abstract</B></P> <P>A selenium/carbon (Se/C) composite has been suggested as an excellent substitute cathode material due to its high theoretical volumetric capacity. However, it exhibits severe capacity decay, which is caused by the dissolution of active materials as well as s<I>huttle effect</I>. One effective strategy to alleviate this dissolution is to confine the Se within porous carbon frameworks. Here, we report the effects of carbon structure and dopant on the electrochemical performances of Se infiltrated carbon composites with three types carbons; (i) nitrogen-doped ordered mesoporous carbon (NOMC), (ii) sulfur-doped ordered mesoporous carbon (SOMC), and (iii) macroporous spherical carbon, which have different porosities and dopants. The Se/C cathodes are prepared by meting selenium-sulfur compound and then evaporating sulfur from the compound, providing nanoscale space for efficient electrolyte access to the reaction site. Among the three composite cathodes, the Se/NOMC exhibits the highest rate-capability and cyclic stability due to an abundance of cylindrical mesopores (4–5 nm pore diameter) that can provide enough electrolyte diffusion path and effectively impede the dissolution of selenium. As a result, the Se/NOMC has a high volumetric capacity of 1605 mAh cm<SUP>−3</SUP> and excellent capacity retention of 100% during 500 cycles at 0.648 A h cm<SUP>−3</SUP> (C-rate of C/2.5).</P> <P><B>Highlights</B></P> <P> <UL> <LI> Three-types of selenium/carbon (Se/C) cathodes for LiSe battery are prepared. </LI> <LI> They have three carbon frameworks with different structure and dopant. </LI> <LI> The ordered mesoporous carbon (OMC) improves rate-capability of Se/C cathode. </LI> <LI> The Se/C cathode with N-doped OMC delivers the excellent cyclic stability. </LI> <LI> The lithiated Si/Gr– Se/NOMC full-cell demonstrates promising cyclic stability. </LI> </UL> </P>

Carbon Trading Strategies from the Perspective of International Trade

Wonhee Lee(이원희) 중앙대학교 한국전자무역연구소 2018 전자무역연구 Vol.16 No.2

연구목적: 본 연구의 목적은 국제 무역 관점에서 청정개발체제를 중심으로 탄소배출권 사업내 위험 유형을 사업위험과 탄소배출권 위험으로 구분하고 탄소배출권 사업자의 참여 전략, 배출권 거래 전략, 배출권 가격전략, 사후적 위험 대응전략 등의 의사결정을 지원하는 것이다. 이를 통하여 기후변화협약 및 국내 배출권거래제도 하에서 온실가스 감축목표를 효율적으로 달성하는데 궁극적인 목적이 있다. 논문구성/논리: 본 연구는 전체 네 장으로 구성되어 있다. 첫 번째 장에서는 본 연구의 배경과 목적을 설명하며, 두 번째 장에서는 탄소배출권 사업에 대한 연구의 흐름을 검토하고 산업적 니즈와 비교하여 탄소배출권 위험 유형에 기반한 연구모형을 수립하여 사례연구 분석틀을 도출하였다. 세 번째 장에서는 국내 기업이 중국에 진출하여 추진한 국제 탄소배출권 사업을 중심으로 네 가지 위험유형에 대한 사례연구를 수행하였고, 마지막 장에서는 결론 및 향후 연구에 대한 시사점을 제시하였다. 결과: 사례연구를 통하여 전통적인 사업개발, 금융, 시공 및 운영과정에서 발생하는 위험과 탄소배출권 고유의 등록, 발행, 거래 과정에서 발생하는 위험을 평가하였다. 이에 따라 사업단계에 대한 참여방식과 역할에 따른 참여방식이 달라질 수 있음을 확인하고 탄소배출권 거래전략 수립 시 선도거래 전략, 가격전략, 개별사업에 특화된 다양한 위험관리 방식을 분석하였다. 독창성/가치: 탄소배출권 사업에 대한 기존연구는 거시적인 측면의 투자수익성 연구나 지속가능성 관점의 정책적 연구에 집중되어 있었다. 본 연구에서는 사업자들의 현실적인 의사결정 시점에 초점을 맞추어 탄소배출권 사업정보에 기반한 위험평가를 통하여 해외 사업참여 및 국제 탄소배출권 거래전략을 수립하는데 유용한 이론적 분석 틀을 제시하였다는 점에서 차별성이 있다. Purpose: The study aims to classify the risks involved in clean development mechanism projects into business and carbon risks, and support the decision-making of business participation, international carbon trade strategy, carbon price strategy, and post-risk management. In addition, the national target of greenhouse gas reduction can be achieved more efficiently, based on the carbon risk management framework. Composition/Logic: The paper consists of four chapters. The first chapter explains the background and objectives of this study. The research model for the case study in the second chapter is developed based on the project risk. Chapter three analyzes four case studies on the clean development mechanism in China as implemented by a domestic developer. The final chapter summarizes the results from the cases with research and practical implications, and suggests directions for future research. Findings: Four case studies show the traditional risks of business development, finance, construction, and operations, as well as carbon credit risks through registration, issuance, and trading processes. Participants in carbon businesses play different roles in consideration of project risks and carbon trading strategies, including forward contract and pricing decisions, which are also dependent on risk profiles. Originality/Value: Existing literature on carbon business has focused on the return on investment or sustainable development in the views of the macro economy or policy levels. This study explores risk analysis and decision making with project information on practical cases. The results support domestic firms in developing their own international carbon trading strategies with a theory-driven framework.

Estimating the parameter of an exponential distribution under multiply type II hybrid censoring

Wonhee Lee,Kyeongjun Lee 한국데이터정보과학회 2018 한국데이터정보과학회지 Vol.29 No.3

In this paper, we propose a multiply type II hybrid censoring scheme. And, we derive statistical inference on the scale parameter for the exponential distribution under proposed multiply type II hybrid censoring scheme. The scale parameter is estimated by maximum likelihood estimator (MLE) and approximate MLE using Taylor series expansion. We also obtain the asymptotic confidence interval (CI) for scale parameter under multiply type II hybrid censoring scheme. We compare the MLE and approximate MLE in the terms of the mean square error (MSE) and bias. The simulation procedure is repeated 10,000 times for the sample size n = 20, 40 and various multiply type II hybrid censoring. Consequently, approximate MLE is generally more efficient than the MLE. The average CL of approximate MLE is longer than the corresponding average CL of MLE.

Functional Recapitulation of Smooth Muscle Cells Via Induced Pluripotent Stem Cells From Human Aortic Smooth Muscle Cells

Lee, Tae-Hee,Song, Sun-Hwa,Kim, Koung Li,Yi, Ji-Yeun,Shin, Ga-Hee,Kim, Ji Yeon,Kim, Jihoon,Han, Yong-Mahn,Lee, Sang Hun,Lee, Suk-Ho,Shim, Sung Han,Suh, Wonhee Ovid Technologies Wolters Kluwer -American Heart A 2010 Circulation research Vol.106 No.1

In-Plane Channel-Structured Catalyst Layer for Polymer Electrolyte Membrane Fuel Cells

Lee, Dong-Hyun,Jo, Wonhee,Yuk, Seongmin,Choi, Jaeho,Choi, Sungyu,Doo, Gisu,Lee, Dong Wook,Kim, Hee-Tak American Chemical Society 2018 ACS APPLIED MATERIALS & INTERFACES Vol.10 No.5

<P>In this study, we present a novel catalyst layer (CL) with in-plane flow channels to enhance the mass transports in polymer electrolyte membrane fuel cells. The CL with in-plane channels on its surface is fabricated by coating a CL slurry onto a surface-treated substrate with the inverse line pattern and transferring the dried CL from the substrate to a membrane. The membrane electrode assembly with the in-plane channel-patterned CL has superior power performances in high current densities compared with an unpatterned, flat CL, demonstrating a significant enhancement of the mass-transport property by the in-plane channels carved in the CL. The performance gain is more pronounced when the channel direction is perpendicular to the flow field direction, indicating that the in-plane channels increase the utilization of the CL under the rib area. An oxygen-transport resistance analysis shows that both molecular and Knudsen diffusion can be facilitated with the introduction of the in-plane channels. The direct CL patterning technique provides a platform for the fabrication of advanced CL structures with a high structural fidelity and design flexibility and a rational guideline for designing high-performance CLs.</P>

Hydrate-based capture of blowing agents: Thermodynamic investigation of model gas mixtures consisting of HCFC-22, HCFC-142b, and N2

Wonhee Lee,문승현,조동우,정태성,강성필 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.111 No.-

Hydrochlorofluorocarbons (HCFCs) are representative powerful greenhouse gases that contribute significantlyto global warming. As an alternative strategy for their existing separation and recovery methods,hydrate-based gas separation (HBGS) has been of great. A preliminary investigation was performed tomeasure the hydrate phase equilibria of pure HCFC-22, pure HCFC-142b, and two different gas mixturesof these with N2 (at molar composition ratios of 8.01:12.01:79.98 and 20.01:30.00:49.99), which is indispensableto the design of a HBGS process and determination of its operating conditions. Hydrate dissociationenthalpies of the investigated systems were calculated from the measured equilibrium datausing the Clausius-Clapeyron equation, and their values were 82.12 (HCFC-22), 153.65 (HCFC-142b),127.90 (HCFC-22 8.01%), and 133.51 (HCFC-22 20.01%) kJ/mol, respectively. Their crystal structures weredetermined using powder X-ray diffraction, and results revealed that HCFC-22 merely formed structure Ihydrate. Kinetic hydrate formation tests were carried out with the two different gas mixtures, and thecompositions of the vapor and hydrate phases were examined. The hydrate nucleation and separationperformance were profoundly affected by the initial system pressure, proven by showing the shortestinduction time and the highest separation factor for HCFCs.

Hybrid MIMO Antenna Using Interconnection Tie for Eight-Band Mobile Handsets

Wonhee Lee,Mingil Park,Taeho Son 한국전자파학회JEES 2015 Journal of Electromagnetic Engineering and Science Vol.15 No.3

In this paper, a hybrid multiple input multiple output (MIMO) antenna for eight-band mobile handsets is designed and implemented. For the MIMO antenna, two hybrid antennas are laid symmetrically and connected by an interconnection tie, thereby enabling complementary operation. The tie affects both the impedance and radiation characteristics of each antenna. Further, printed circuit board (PCB) embedded type is applied to the antenna design. To verify the results of this study, we designed eight bands-LTE class 12, 13, and 14, CDMA, GSM900, DCS1800, PCS, and WCDMA-and implemented them on a bare board the same size as the real board of a handset. The voltage standing wave ratio (VSWR) is within 3:1 over the entire design band. Antenna isolation is less than -15 dB at the lower band, and -12 dB at the WCDMA band. Envelope correlation coefficient (ECC) of 0.0002?0.05 is obtained for all bands. The average gain and efficiency are measured to range from -4.69 dBi to -2.88 dBi and 33.99% to 51.5% for antenna 1, and -4.74 dBi to -2.97 dBi and 33.45% to 50.49% for antenna 2, respectively.