• 한국콘텐츠학회논문지
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• 제11권12호
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• pp.674-681
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• 2011

조선 시대 인쇄물인 삼강행실도는 세계 만화역사에서도 이른 시기인 1434년에 간행되었다. 삼강행실도에는 만화기호인 '만화칸'과 '칸과 칸 사이'가 등장한다. 만화기호인 만화칸의 상징성 못지않게 칸과 칸 사이도 만화기호에서 상징적 의미가 있다. 만화역사의 측면에서 보면 칸이 등장한 후, 칸과 칸 사이가 등장한 그 자체만으로도 의미를 부여할 수 있다. 그 상징적 근거들을 찾아 밝힘으로써 국내 만화역사의 역사적 근거가 다져질 것이다. 삼강행실도에서는 칸과 칸 사이의 형식적인 유형을 크게 두 가지로 나눌 수 있다. 첫 번째는 '구름칸과 구름칸 사이'이며, 두 번째는 '구름칸과 배경칸 사이'이다. 삼강행실도의 두 가지 유형인 칸과 칸 사이는 현대 만화와 비교할 때 모양이나 연출에서 차이를 보이지만 칸과 칸 사이의 의미는 유사하다고 하겠다. 이처럼 본 연구는 삼강행실도의 칸과 칸 사이의 형태를 분석함으로써 국내 만화역사의 타당한 근거를 제시하는 데 의미가 있다. 만화기호 중에서도 칸과 칸 사이에 초점을 맞추어, 삼강행실도의 칸과 칸 사이의 형태를 증명하는 것이 연구의 목적이다.

• 대한치과보철학회지
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• 제8권1호
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• pp.15-19
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• 1968

To compare on the accuracy of bridge made by various soldering technics, four unit bridges were made on a blass original model. They were soldered to each other in the following three ways : In Group I, one central gap between two pieces of pre-soldered abutments and adjacent pontics were soldered at the final step. In Group II, the two gaps between one piece of pre-soldered pontics and two abutments were soldered at the final step. In Group III. the three gaps between two abutments and two ponitcs were soldered at the same time. Misfitting of those bridges were compared by measuring the spaces created between the retainer margins and the shoulders of preparated original model with a micrometer microscope. The author obtained following results : In the final step, the more number of the soldered gap increased, the more accuracy of the bridge decreased.

• 한국컴퓨터정보학회논문지
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• 제19권1호
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• pp.119-130
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• 2014

본 논문은 다양한 네트워크를 편리하게 분석할 수 있는 실용적인 유전 알고리즘 기반 경로탐색 시스템인 GAPS를 제안하고자 한다. 이러한 목적을 위해 GAPS는 네트워크 모델링을 위한 직관적인 그래픽 사용자 인터페이스와 모델링 및 탐색 과정에서 발생하는 데이터들을 관리하기 위한 데이터베이스 관리 시스템, 다양한 네트워크를 분석하기 위해 개발된 간단한 유전 알고리즘을 결합하여 개발되었다. 특히, 기존의 유전 알고리즘들이 단락이 많고 두 개 노드 간 실행가능 경로 수가 많지 않은 네트워크를 분석하는데 적합하지 않았던 반면, GAPS는 실행가능 경로와 실행불가능 경로를 모두 적절히 평가할 수 있는 적합도 함수를 사용하는 유전 알고리즘에 기반하고 있어 해 집단의 다양성을 유지하면서 다양한 네트워크들을 분석할 수 있다. 실험결과, GAPS를 통해 단락이 많은 네트워크와 단락이 적은 네트워크를 모두 편리하게 분석할 수 있다는 점과, GAPS가 기존의 경로탐색문제를 위한 유전 알고리즘들과 대비되는 장점을 갖고 있음을 확인할 수 있었다.

• 대기
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• 제33권5호
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• pp.441-456
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• 2023

The mobile observation method, in which a meteorological drone observes while ascending, can observe the vertical profile of wind at 1 m-interval. In addition, since continuous flights are possible at time intervals of less than 30 minutes, high-resolution observation data can be obtained both spatially and temporally. In this study, we verify the accuracy of mobile observation data from meteorological drone (drone) and fill the spatio-temporal observation gaps in the lower atmosphere. To verify the accuracy of mobile observation data observed by drone, it was compared with rawinsonde observation data. The correlation coefficients between two equipment for a wind speed and direction were 0.89 and 0.91, and the root mean square errors were 0.7 m s^-1 and 20.93°. Therefore, it was judged that the drone was suitable for observing vertical profile of the wind using mobile observation method. In addition, we attempted to resolve the observation gaps in the lower atmosphere. First, the vertical observation gaps of the wind profiler between the ground and the 150 m altitude could be resolved by wind observation data using the drone. Secondly, the temporal observation gaps between 3-hour interval in the rawinsonde was resolved through a drone observation case conducted in Taean-gun, Chungcheongnam-do on October 13, 2022. In this case, the drone mobile observation data every 30-minute intervals could observe the low-level jet more detail than the rawinsonde observation data. These results show that the mobile observation data of the drone can be used to fill the spatio-temporal observation gaps in the lower atmosphere.

• 전기학회논문지
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• 제58권4호
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• pp.777-782
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• 2009

In this paper, the effect of the secondary electron emission coefficient of Xe ion on glow discharge was examined by ID numerical simulation. The simulation was performed for two distinct structures, short and long gaps. The features of the glow discharges in the both structures, firing and sustain voltages, luminance, and efficiency, were analyzed at various secondary electron emission coefficient of Xe ion.

• 대한수학회보
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• 제56권2호
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• pp.491-499
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• 2019

The problem of finding fast computing methods for Bernoulli numbers has a long and interesting history. In this paper, the author provides new proofs for two lacunary recurrence relations with gaps of length four and eight for the Bernoulli numbers. These proofs invoked the fact that the nth powers of ${\pi}^2$, ${\pi}^4$ and ${\pi}^8$ can be expressed in terms of the nth elementary symmetric functions.

• Korean Journal of Mathematics
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• 제26권4호
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• pp.601-614
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• 2018

We consider the magnetic $Schr{\ddot{o}}dinger$ operator coupled with two different potentials. One of them is a harmonic oscillator and the other is a periodic potential. We give some periodic potential classes for which the operator has purely absolutely continuous spectrum. We also prove that for strong magnetic field or large coupling constant, there are open gaps in the spectrum and we give a lower bound on their number.

• 대한간호학회지
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• 제34권2호
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• pp.225-234
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• 2004

Purpose: The purpose of this study was to develop a tool that measures the quality of nursing service, to measure the quality of nursing service perceived by consumers, and to identify the gaps between ideal and actual nursing services. Method: A questionnaire was developed and distributed to 300 people who had been hospitalized in one of six general hospitals with quality of nursing services in five provincial cities in Korea. For data analysis, the SPSS/WIN(ver 10.0) program was used. Result: The 20 attributes included in the instrument of quality of nursing service is abstracted into 2 factors: tangibility and intangibility. In quality analysis, 15 of 20 attributes are minus scores, meaning that those nursing services are perceived as generally low. However among the minus scores' attributes, only two attributes are significant statistically. Gaps between importance and performance of the nursing service exists in 19 among 20 attributes. Conclusion: Nursing service quality (performance-expectation) needs to be improved, and Gaps (importance-performance) reduced. In addition, a tool measuring nursing service quality has to be developed so nurses can deal successfully with the quality and gaps of nursing service perceived by consumers.

• 농촌계획
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• 제13권3호
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• pp.91-101
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• 2007

Recently the number of rural development plans are increased and projects supported by government are various. These makes rural plans important. But there are many gaps between proposed plan and implementation. These gaps were wasteful in terms of resource management. This study examines differences between plan and implementation and the reasons why they are occurred. For this purpose, we did a case study which is focused on the four-year implementation of 2004-2006 "Unique Experience Village Master Plan" of Seochon, Chungbuk. As a result, we verified facts of gaps and causes, and two major causes were detected : one is the absence of operating and managing body(such as promoter of project, village leader, residences), and the other is inadequate master plan.

• Nuclear Engineering and Technology
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• 제43권1호
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• pp.89-98
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• 2011

The construction technology for reactor vessel internals (RVI) modularization is one of the most important factors to be considered in reducing the construction period of nuclear power plants. For RVI modularization, gaps between the reactor vessel (RV) core-stabilizing lug and the core support barrel (CSB) snubber lug must be measured using a remote method from outside the RV. In order to measure RVI gaps remotely at nuclear power plant construction sites, certain core technologies must be developed and verified. These include a remote measurement system to measure the gaps between the RV core-stabilizing lug and the CSB snubber lug, an RVI mockup to perform the gap measurement tests, and a new procedure and schedule for RVI installation. A remote measurement system was developed previously, and a gap measurement test was completed successfully using the RVI mockup. We also developed a new procedure and schedule for RVI installation. This paper presents the new and improved installation procedure and schedule for RVI modularization. These are expected to become core technologies that will allow us to shorten the construction period by a minimum of two months compared to the existing installation procedure and schedule.