• Korean Medical Education Review
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• v.14 no.2
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• pp.64-68
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• 2012

Learning in medical school is usually regarded as a very specialized type of learning compared to that of other academic disciplines. Medical students might have general beliefs about their own learning. Beliefs about learning have a critical effect on learning behavior. There are several factors that affect medical students' learning behavior: epistemological beliefs, learning styles, learning strategies, and learning beliefs. Several studies have addressed epistemological beliefs, learning styles, and learning strategies in medical education. There are, however, few studies that have reported on medical students' beliefs about learning. The purpose of this study was to determine what learning beliefs medical students have, what the causes of these beliefs are, and how medical educators teach students who have such beliefs. In this study, the five learning beliefs are assumed and we considered how these beliefs can affect students' learning behaviors. They include: 1) medical students are expected to learn a large amount of information in a short time. 2) memorization is more important than understanding to survive in medical schools. 3) learning is a competition and work is independent, rather than collaborative. 4) reading textbooks is a heavy burden in medical education. 5) the most effective teaching and learning method is the lecture. These learning beliefs might be the results of various hidden curricula, shared experiences of the former and the present students as a group, and personal experience. Some learning beliefs may negatively affect students' learning. In conclusion, the implications of medical students' learning beliefs are significant and indicate that students and educators can benefit from opportunities that make students' beliefs about learning more conscious.

• Journal of architectural history
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• v.10 no.3 s.27
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• pp.45-60
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• 2001

The Tongdo temple have been transformed continuously since its first establishment about 1300 years ago. Nevertheless three critical elements specified by 'Jajangyulsa', founder of the temple have not varied over the times but rather strengthened and strongly combined. All elements and doctrines of the religion coexist and form a harmony within the whole of the temple. This researcher examined what changes, or combinations, in spatial formation were sought for such unique structures of the Tongue temple by focusing mainly on the Sangrojun area of the temple to obtain the following findings. First. unlike a work by a Japanese researcher 'Sekino Tadashi', the east yard of the main building was found located on the section line which corresponded to the separation line of Yungkuncheokdo(營建尺度=measure running) from the edge of the Keumkangkyedan(金剛戒壇 =Buddhist platform) embankment to the corner column of the Kamrodang. This was confirmed as a result of the review of photos shown in [Chosun Kojukdobo]. Second, the number of stairs used for the Keumkangkyedan was thought to become three when the temple was firstly restored in 1379 as a result that this researcher reviewed Chinese literature 'DoSun' and [Kyedandokyung(戒壇圖經)], records by 'Lee saek' and 'Jung Shihan', studies of Yungkun measure and actual changes in the temple. Then the temple was forth restored in 1705 when the second of the stairs was changed in area and height and at the same time grounded hard for a space for a Buddhist service. Third, the roof of the main building was probably changed in shape during the Koryo period when the plane structure, furnish arrangement, emphasized front, stone lanterns of the building and political factors of that time were all considered. Fourth, the main building was Initially designed to provide a Buddhist sermon service which was assumedly followed by a similar service at a Keumkangkyedan. Thus the main building had a small window on the northern side which might be opened up to look out or otherwise go outside like a door. However, the window was probably locked up like a surrounding wall since the main building was entirely repaired after the end of Japanese invasion of Korea in 1592.

• Nuclear Engineering and Technology
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• v.52 no.9
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• pp.2107-2118
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• 2020

The nuclear reactor coupled with supercritical carbon dioxide (S-CO₂) Brayton cycle has good prospects in generation IV reactors. Turbomachineries (turbine and compressor) are important work equipment in circulatory system, whose performances are critical to the efficiency of the energy conversion system. However, the sharp variations of S-CO₂ thermophysical properties make turbomachinery performances more complex than that of traditional working fluids. Meanwhile, almost no systematic analysis has considered the effects of turbomachinery efficiency under different conditions. In this paper, an in-house code was developed to realize the geometric design and performance prediction of S-CO₂ turbomachinery, and was coupled with systematic code for Brayton cycle characteristics analysis. The models and methodology adopted in calculation code were validated by experimental data. The effects of recompressed fraction, pressure and temperature on S-CO₂ recompression Brayton cycle were studied based on detailed design of turbomachinery. The results demonstrate that the recompressed fraction affects the turbomachinery characteristic by changing the mass flow and effects the system performance eventually. By contrast, the turbomachinery efficiency is insensitive to variation in pressure and temperature due to almost constant mass flow. In addition, the S-CO₂ thermophysical properties and the position of minimum temperature difference are significant influential factors of cyclic performance.

• Journal of Korean Academy of Nursing
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• v.46 no.5
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• pp.753-765
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• 2016

Purpose: The aim of this study was to explore the lived experiences of women problem gamblers, focusing on the meaning of gambling to them, how and why these women continue to gamble or stop gambling, and their needs and concerns. In order to effectively help women problem gamblers, practical in-depth knowledge is necessary to develop intervention programs for prevention, treatment, and recovery among women problem gamblers. Methods: The hermeneutic phenomenology approach was used to guide in-depth interviews and team interpretation of data. Sixteen women gamblers who chose to live in the casino area were recruited through snowball sampling with help from a counseling center. Participants were individually interviewed from February to April 2013 and asked to tell their stories of gambling. Transcribed interviews provided data for interpretive analysis. Results: In the study analysis one constitutive pattern was identified: moving beyond addiction by recognizing the two faces of gambling in their life. Four related themes emerged in the analysis-gambling as alluring; gambling as 'ugly'; living in contradictions; and moving beyond. Conclusion: Loneliness and isolation play a critical role in gambling experiences of women gamblers in Korea. In other words, they are motivated to gamble in order to escape from loneliness, to stop gambling for fear of being lonely as they get older, and to stay in the casnio area so as not to be alone. The need for acceptance is one fo the important factors that should be considered in developing intervention program for women.

• Broadcasting and Media Magazine
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• v.7 no.3
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• pp.12-18
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• 2002

JVT is an international video coding standard that is being developed jointly by VCEG of ITU and MPEG of ISO. The standardization efforts are targeted mainly for a very high compression ratio. JVT is a general video coding technology that may be used in various application fields. JVT began to work seriously on the profiles and levels issues since Geneva meeting, January 2002. Profiles are sub sets of technical tools from the entire tools and levels limit processing power and memory resources of a decoder As of now, three profiles of Baseline, Main and X (not defined name yet) and hierarchically structured levels are defined in JVT FCD. The profiling issue is very important for the JVT s initial objective of Baseline royalty free policy. Royalty free Baseline profiling is currently under practical hurdles and this issue may impact as one of critical factors on the success of JVT standard.

• Korean Management Science Review
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• v.27 no.3
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• pp.161-196
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• 2010

This paper empirically investigates the impact of winning a service quality award on the market value in Korea. We estimates the mean "abnormal" change in the stock prices of sample firms when information of winning a service quality award was publicly announced. To access the validity of the research question, this paper employed collected 47 firms data that received the Korean Service Quality Awards so far. Event study methodology was used to analyze the effect of Korean service quality awards. The findings are as follows; The average abnormal returns on the event date are not significant at the 0.05 level which means that the receiving Korean Service Quality Awards has no influence on the firms' market value. On the other hand successive awarded firms have an increasing effect on the market value and it is significant at the 0.05 level. Furthermore, the results show that the factors of firm size such as firm's total assets are critical to vary the firms' abnormal returns. There might be some limitations in this study. The most obvious problem is the limitation of sample size. Although 518 sample cases were found during the period from 2000 to 2008, most of the cases were deleted according to the sample criteria. We are expecting the future research with more data and more precise results. Furthermore, our research consider the only two service award institutions even though there are several different service award authorities in Korea. It is needed to expand the research scope and range to adopt the various service award institutions for the future work.

• Journal of the Korean Vacuum Society
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• v.20 no.4
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• pp.307-312
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• 2011

As a technique for removing cancerous tumors from normal tissue, radio-frequency electromagnetic waves were employed to heating target cells up to the critical temperature, which kills the cancerous cells. However, its use in treating tumors in soft organs is limited by inconvenient factors, which are use of high-currents and long time operation. In this work, the feasibility of the localized heating by inserting four conducting electrodes with tiny direct current is investigated. The heat source is resulting from the electric field as known as resistive heating. We have investigated the temperature distribution as a function of applying DC voltages ranging from 10 V to 30 V with 10 V step. From the simulation results, the mushroom-like lesion shape by applying 20 V is generated by four electrodes within a few minutes, that is proper to the clinical application.

• Journal of Digital Convergence
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• v.12 no.7
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• pp.379-387
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• 2014

This study aimed to explore the effects of married female immigrants' consciousness of later life and social and leisure activities on their preparation perception for their later life. We used data from 355 married female immigrants, residing in or nearby, Choongchungnam-do, Korea in 2013. Regressional analysis and SPSS 18.0 were conducted to prove the hypotheses. Consistent with previous studies, the findings of this study indicate that having more activities on leisure and social life and more planning on later life constitute critical factors for higher emotional, physical, and economical preparation perception for later life. Here we discussed strategies in planning social welfare policy for married female immigrants by providing basic information.

• Korea Journal of Hospital Management
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• v.21 no.3
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• pp.22-36
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• 2016

This study aims to analyze the effects of job satisfaction on turnover intention among the nurses in geriatric hospitals. In terms of study methods, this study developed structured questionnaires, and distributed them to nurses working in 11 geriatric hospitals in metropolitan area. A total of 418 questionnaires (response rate: 87.0%) were used for final analysis. We conducted multiple regression analyses to analyze the influence of job satisfaction on turnover intention, adjusting for the characteristics of the research subjects. The results of this study are as follows. First, both job satisfaction and turnover intention were statistically significantly related to individual and hospital characteristics. Second, turnover intention was lower in older age group, and higher in smaller hospitals. As job satisfaction increases, turnover intention decreases. Third, the results of the regression analysis adjusting for subject's characteristics and job satisfaction's sub-categories show that the turnover intention is lower in nurses who are older, day worker, and work in bigger hospitals. Fourth, the result of subgroup analysis by hospital volume show that both of two groups are influenced by hospital ownership and satisfaction about compensation. In addition, professionalism had a significant effect on decreasing turnover intention in smaller hospitals. However, there was no statistically significant relationship between job satisfaction's sub-categories and turnover intention in larger hospitals. The results of this study confirms that job satisfaction lowers turnover intention among nurses in geriatric hospitals. It is suggested that the administrators of those hospitals continue to monitor critical factors associated with job satisfaction, and thus, reduce turnover intention, which helps improve quality of services.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.14 no.5
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• pp.88-95
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• 2015

The thickness of adsorbed molecular layers is the most critical factor in studying thin-film lubrication, and it is the most essential parameter that distinguishes thin-film from thick-film lubrication analysis. The thin film between the shaft and bearing surface within a very narrow gap was considered. The general Reynolds equation has been derived for calculating thin-film lubrication parameters affecting the performance of the circular journal bearing. Investigation of the load-carrying capacity and pressure distribution for the journal bearing considering the adsorbed layer thickness has been carried out. A Reynolds equation appropriate for the journal bearing is used in this paper for the analysis, and it is discussed using the finite difference method of the central difference scheme. The parameters, such as eccentricity and attitude angle, are used for discussing the load-carrying capacity of the journal bearing. The results reported in this paper should be applied to analysis of the journal bearing with different lubrication factors. The steady-state analysis of the journal bearing is conducted using the Reynolds model under thin-film lubrication conditions. For a journal bearing, several parameters, such as a pressure, load capacity, and pressure components of the bearing can be obtained, and these results can be stored in a sequential data file for later analysis. Finally, their distribution can be displayed and analyzed easily by using the MATLAB GUI technique. The load-carrying capability of the journal bearing is observed for the specified operating conditions. This work could be helpful for the understanding and research of the mechanism of thin-film lubrication.