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황규희(Gyuhee Hwang),임명환(Myung-Hwan Rim),송경석(Kyungseok Song),이중만(Jung Mann Lee) 한국경영과학회 2014 經營 科學 Vol.31 No.4
This study aims to expand the future study methodology and to develop a methodology of future-oriented curriculum analysis with future skills needs derived from patent analysis. With the case of information security, the methodology is applied to the 16 universities, which have information security department in undergraduate course. From the results, the followings are suggested:1) for the increasing importance area including hacking, infiltration and PC security, a practical exercise should be emphasized; 2) for the convergence area including security policy, security legislation and OS security, proper faculties should be filed with recruiting field-based experts; 3) for the increasing importance area including professional area including security audit and information security protocol, the advanced curriculum related to graduate level should be provided.
Park, Kyung,An, Chee-Hong,Hwang, Byung-Il,Lee, Hoo-Jeong,Kim, Hyoungsub,Son, Kyungseok,Kwon, Jang-Yeon,Lee, Sangyun Cambridge University Press (Materials Research Soc 2010 Journal of materials research Vol.25 No.2
<P>This study examined the degradation of the device performance of InGaZnO4 (IGZO)-based thin-film transistors after annealing at high temperatures in air ambient. Using various characterization methods including scanning electron microscopy, x-ray diffraction, and transmission electron microscopy, we were able to disclose the details of a two-stage phase transformation that led to the device performance degradation. The Mo electrodes first succumbed to oxidation at moderate temperatures (400∼500 °C) and then the Mo oxide further reacted with IGZO to produce an In-Mo-O compound with some Ga at higher temperatures (600∼700 °C). We analyzed our results based on the thermodynamics and kinetics data available in the literature and confirmed that our findings are in agreement with the experimental results.</P>
Effect of Passive Temperature Therapy of the Femoral Muscles on the Countermovement Jump Performance
Lee, Jintaek,Panday, Siddhartha Bikram,Byun, Kyungseok,Lee, Jusung,Hwang, Jinny,Moon, Jeheon Korean Society of Sport Biomechanics 2019 한국운동역학회지 Vol.29 No.4
Objective: The purpose of this study was to evaluate the effect of passive-acute temperature therapy of the femoral muscle and dynamic warm-up on the countermovement jump performance. Method: Twenty male track and field athletes from national team underwent three treatments applied on the femoral muscles; cold temperature treatment, thermal treatment and dynamic warm-up. The variables extracted at 2 time points (pre-measurement and post measurement) were the temperature of the left and right femoral muscle, displacement & velocity of centre of mass, peak power out, range of motion and moment & power of the knee joint. Results: There was a statistically significant difference in the temperature of the femoral muscle according to measurement time which was high in the order of thermal treatment, dynamic treatment and cold treatment. The jump height was the highest in the dynamic warm-up with no statistically significant difference for the range of motion of the knee joint. The peak power out at dynamic warm-up and the power of the knee joint were statistically significant according to the treatment and measurement time. Conclusion: Local cold and thermal treatment of femoral muscles at ambient temperature did not improve jump performance, while dynamic warm-up was considered to be effective for maintaining the performance of the activities that require strong muscular power.
송해박(Hailbak Song),유정철(JengcheoI Yoo),이종화(Jooghwa Lee),유재석(Jaisuk Yoo),박경석(Kyungseok Park),황준하(Joonha Hwang),박승도(Seungdo Park) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_2
A simulation study was carried to analyze the vehicle fuel consumption on component basis. Experiments was also carried out to identify the simulation results, under FTP-75 Hot Phase driving conditions and arbitrary driving conditions. A good quantitative agreement was obtained.<br/> Based on the simulation, fuel energy was used in pumping loss(3.7%), electric power generation(O.7%), engine friction(l2.7%), engine inertia(O.7%), torque converter loss(4.6%), drivetrain friction(O.6%), road-load(9.2%). and vehicle inertia(I3.4%) under FTP-75 Hot Phase driving conditions.<br/> Using simulation program, the effects of capacity factor and idle speed on fuel consumption were estimated. A increment of capacity factor of torque converter resulted in fuel consumption improvement under FTP-75 Hot Phase driving conditions. Effect of a decrement of idle speed on fuel consumption was negligible under the identical driving conditions.