• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.7
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• pp.127-135
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• 2020

This study examined the effects of self-efficacy, standard precaution knowledge, and awareness on the performance of nursing students. Data collection was May 1-30, 2019, and the final 246 replies were used for analysis. The collected data were analyzed using the SPSS/WIN 22.0 program using descriptive statics and a t-test, ANOVA, Scheffe's test, Pearson correlation coefficient, and multiple regression analysis. The average self-efficacy score was 3.23±0.39. The overall standard precaution knowledge, average awareness, and average performance were 15.87±2.17, 4.63±0.46, and 4.73±0.32, respectively. The standard precaution performance, according to the general characteristics, was not significant. A positive correlation was observed between the standard precaution performance and self-efficacy (r=.266, p<.001) and awareness (r=.435, p<.001). Regression analysis showed a 21.3% variance in the nursing student's standard precaution performance with self-efficacy (β=.396, p<.001), awareness (β=.180, p=.002). A follow-up survey of the factors influencing nursing student's standard precaution performance and the development of a program will be required.

• Journal of KIISE
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• v.42 no.5
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• pp.609-620
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• 2015

Viewers of videos are likely to absorb more information from the part of the screen that attracts visual attention. This fact has led to the visual attention models that are being used in producing and evaluating videos. In this paper, we investigate the factors that are significant to visual attention and the mathematical form of the visual attention model. We then estimated the visual attention probability using the statistical design of experiments. The analysis of variance (ANOVA) verifies that the motion velocity, distance from the screen, and amount of defocus blur affect human visual attention significantly. Using the response surface modeling (RSM), we created a visual attention score model that concerns the three factors, from which we calculate the visual attention probabilities (VAPs) of image pixels. The VAPs are directly applied to existing gradient based 3D effect perception measurement. By giving weights according to our VAPs, our algorithm achieves more accurate measurement than the existing method. The performance of the proposed measurement is assessed by comparing them with subjective evaluation as well as with existing methods. The comparison verifies that the proposed measurement outperforms the existing ones.

• International Area Studies Review
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• v.22 no.2
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• pp.93-119
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• 2018

During the period from 2004 to 2013, the China's automobile consumer protection policy-making reflected interest articulation and aggregation among consumers, manufacturers, car dealership and repair companies. In particular, consumers has succeeded in articulating their interests in spite of their dispersed situation by making the efforts to present regulation's revision agenda through the China Consumers Association. And the car dealers put the right to blame the car manufacturers for unexpected vehicle defects into the final regulation through the China Automobile Distribution Association. Finally, due to the active interest articulation of automobile companies, policy making process was delayed or policies that were expected to benefit consumers were promoted to some extend. Therefore, it can be seen that there is a limit to define state-society relations in China simply as state corporatism, and rather it is more important to understand state-society relations in China as between state corporatism and societal corporatism including bottom-up interest articulations and aggregations and policy modification activities of various private or societal organizations.

• Proceedings of the Korean Society for Cognitive Science Conference
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• 2002.05a
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• pp.241-250
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• 2002

본 연구의 목적은 최근 운전자 행동에 대한 연구 방법으로 매우 중요하게 대두되고 있는 운전 시뮬레이션 방법을 이용하여 운전자들이 보이는 기본적인 운전 수행 능력 및 이러한 운전 수행 능력과 관련이 가장 깊은 것으로 기존의 연구들이 밝혀왔던 기본적인 지각적/인지적/운동적 수행 능력을 측정하여 운전자 수행을 평가하는 것을 목적으로 한다. 특히 운전자의 운전 수행 및 운전과 관련된 기본적인 정신/운동 수행 능력은 정보 처리적 관점에서 측정되고 분석되었으며, 이를 통해 운전자들이 보이는 기본적인 정보처리 능력의 패턴에 대한 전반적 이해를 시도하였다. 본 연구에서는 기본적인 운전 수행 능력을 평가하는데 사용되는 차량의 속도 유지와 차선 유지에 대한 측정치와 더불어 운전과 관련한 인간 수행 중에서 단순 반응 능력, 선택 반응 능력, 속도 추정 능력, 청각적 주의나 시각적 주의의 분산 능력 등이 운전 시뮬레이션을 통하여 운전 중에 실시간으로 측정되었다. 본 연구에서 수집된 자료는 운전자들의 실제 운전 수행 및 이와 관련된 정보 처리 활동에 대한 표준화된 준거를 제시하는데 기초적 자료로 사용될 수 있으리라 생각된다.

• The Korean Journal of Financial Management
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• v.27 no.1
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• pp.63-87
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• 2010

This paper empirically examines whether ownership disperses when a venture firm its IPO (initial public offerings). The data for this study were collected from 91 firms that were initially listed on KOSDAQ between January 1, 2004 and December 31, 2007. We explored the influence of the underpricing of IPO on the change of large shareholders. The first finding of this investigation is that the number of shareholders of the venture firms who underpriced IPOs still increased after the closing of lockup. This is consistent with the findings of Booth and Chua(1996) and Brennan and Franks(1997). Second, the share of the large stockholders of the venture firms that a venture capital company invested decreased significantly after the end of lockup. Third, the venture businesses with higher ratio of flotation showed a significant decreasing of shareholders after the closing of lockup.

• Journal of dental hygiene science
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• v.9 no.2
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• pp.161-167
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• 2009

The purpose of this Study was to examine the effect of perfectionism on stress and anxiety during scaling practice in an effort to find efficient way of helping students with getting good skills. The subjects in this study were students who practiced a scaling at the oral hygiene practice lab in the Department of dental hygiene in S college from May 1 to May 31, 2008. They were divided into four groups based on their subscales of perfectionism : mixed perfectionist group, achievement striving perfectionist group, failure avoidance perfectionist group and non-perfectionist group. The measurements used were Two-Dimensional Perfectionism Scale, Stress level, Trait anxiety, State anxiety. There were no significant differences in the stress level before practice between 4 groups. There were significant differences in trait anxiety, state anxiety, total anxiety before scaling practice between 4 groups. However, these results were due to differences between mixed perfectionist group and non-perfectionist group. After practice, total anxiety was decreased from 93.71 to 89.66 and state anxiety was decreased from 45.49 to 43.38. These results were statistically significant. In order to investigate the influence of achievement striving factor and failure avoidance factor on the change of state anxiety during the scaling practice Standard Multiple Regression were employed for the statistical analysis. Failure avoidance factor was related with the increase of state anxiety during the scaling practice. So leachers have to give all effort to reduce the anxiety of students during scaling practice and provide students with motivation of achievement.

• The Journal of the Korea institute of electronic communication sciences
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• v.9 no.8
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• pp.939-944
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• 2014

Traffic accidents caused by the attention dispersion are increasing and the behavior of the attention dispersion affects the front-observing rate, road keeping ability, and reaction time for a dangerous situation. Many drivers listen to a radio broadcast and they have to change the frequency for continuously listening a radio broadcast of the specific broadcasting station in case of crossing a boundary of the particular area. In this situation, the possibility of a car accident increases, because the attention dispersion of a driver might be occurred. Especially, the risk of a car accident caused by changing the frequency of a radio is more serious in the highway, due to the high speed of a vehicle. In order to reduce the risk of a car accident caused by handling a radio during driving car, in this paper, we propose an automatic frequency conversion algorithm for vehicle radio, which saves normal system frequencies of primary broadcasting stations in a database and determines new frequency of the changed area using the location information obtained from a navigation system in a boundary of the specific area. After determining new frequency, the proposed algorithm selects a frequency with better receiving rate comparing signal-to-noise ratios (SNRs) of two signals corresponding previous and new frequencies.

• Proceedings of the KIEE Conference
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• 2001.07d
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• pp.2060-2062
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• 2001

전기를 에너지원으로 사용하는 각 종 부하는 가정, 공장 및 상가 등에 널리 분산되어 있고, 여기에 전기를 생산 공급하는 발전기도 지역적으로 분산되어 병렬운전이 되고 있다. 새로운 발전기가 병렬운전에 참여하기 위해서는 기존 운전되고 있는 전력계통과의 전압, 주파수, 상회전, 위상이 일치하여야 한다. 만약 이들 조건이 갖추어지지 않은 상태에서 임의 병렬 접속을 시도하게 되면 해당 발전기는 물론 전체 계통에 충격과 손상을 초래할 수 있다. 양측의 전압과 주파수 비교는 상용 계측기를 사용하여 비교적 쉽게 할 수 있느나, 상회전 방향과 위상차의 판별에는 세심한 주의가 필요하다. 최근의 발전기에는 병렬 운전 조건을 자동으로 조정, 확인을 하는 장치를 채용하고 있으며 구체적인 회로구성과 동작원리를 여기에서 살펴보았다. 병렬 접속이 이루어진 후 발전기 별 전력 분담과, 계통 주파수 변동에 따라 자동으로 발전기 출력 제어가 이루어지는 기능이 터빈 조속기 측에 설정되어 사용된다.

• Proceedings of the KIEE Conference
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• summer
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• pp.227-229
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• 2004

시대가 변화 하면서 선로손실 및 전압강하문제에 많은 관심을 가지게 되면서, 현재 사용중인 선로 정수값에 대한 고찰을 필요로 하게 되었다. 본 논문에서는 배전선로정수에 대한 현황 및 근거를 확인하고, 또한, 선종별로 장주의 배치에 따른 인덕턴스값 및 온도변화에 따른 교류저항값등에 대한 분석 내용을 소개하기로 한다.

• Korean Journal of Soil Science and Fertilizer
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• v.13 no.2
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• pp.65-70
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• 1980

This experiment was aimed at selecting the most suitable dispersing agent to the Korean soils. The particle size distribution of 18 soil samples representing the great soil groups in Korea was analysed with 5 different dispersing agents by pipette-method. Passing percent of 0.05, 0.02 and 0.002mm in diameter was used for the comparision of the dispersion capacity of chemical agents. The results obtained are as follows; 1. The influence of chemical agents on dispersion seemed to be greater to finer soil particles. The passing percents of 0.002mm showed a great differences according to the chemical agents used, while little differences was observed in those of 0.05mm. 2. It was showed that sodium pyrophosphate had the highest dispersion capacity for the most of Korean soils, the dispersion capacity of sodium hexametaphosphate was also high enough except for volcanic ash soils. 3. It was recommendable that sodium hexametaphosphate could widely be used as a dispersing agent in the routine analysis of soil particle size distribution except for the Volcanic ash soils. 4. The dispersion of Volcanic ash soils was rather poor when chemical agents used. Therefore, special care should be taken for the dispersion of allophane soils.