• 건강소식
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• v.14 no.4 s.137
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• pp.38-41
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• 1990

건협 강원지부는 강원 제4지구 의보조합 산하의 탄광지역 사업장 건강관리를 실시하고 있다. 지난 ‘88년부터 시작하여 그동안 피보험자 건강관리에 중요한 역할을 담당해 왔던 이 건강검사의 과정을 소개하기 위해 검진팀과 함께 정선군 고한읍 탄광지역과 정선군 인계면 영세민 건강검사의 현장을 찾아가 봤다.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 1999.07a
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• pp.177-182
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• 1999

시설농업의 정치식 자동화장치들을 비롯하여 노지 재배를 위한 자율주행형 로봇에 이르기까지 무인화를 위한 노력이 농업의 전반에 확대되고 있으며 원격제어와 무선통신은 이를 실현하기 위한 중요한 기술수단으로 인식되고 있다. 일반적인 무선제어 장치의 발전과정을 보면 보다 많은 제어채널에 대한 정보전송, 확실하고 오류 없는 신호의 전송을 위한 전파방해 대책, 소형 경량화라는 3가지의 기술적 실현과정으로 집약할 수 있다. (중략)

• Journal for History of Mathematics
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• v.23 no.3
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• pp.107-119
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• 2010

In this paper we study the expectation from the past which would be based in the initial Probability Theory. These study can show the value of expectation in the initial concept of Probability and illuminate the concept being taught.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 1992.04a
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• pp.45-50
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• 1992

해양 가이드 타워를 대상으로 하여, 지진하중에 대한 심해응구조물의 비정상거동해법에 대하여 연구하였다. 지반운동의 비정상특성은 정상과정성분에 시간포락함수가 곱해진 형태로 모형화하였으며, 구조물의 비정상거동은 시간종속분산함수로 구하였다. 지반가속도에 대한 자기상관함수를 복소지수함수의 형태로 이상화함으로써, 구조물 거동의 시간종속함수가 해석적인 방법으로 쉽게 구할 수 있는 기법을 개발하였다. 지진의 발생시간 동안 예상되는 최대거동을 구하였으며. 이를 구조물 거동을 정상확률과정으로 가정하여 산정한 결과와 비교 분석하였다.

• Proceedings of the Korean Information Science Society Conference
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• 2001.04b
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• pp.334-336
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• 2001

세선화 알고리즘의 간접 기법으로 제시된 자기구성 특징 그래프(Self-Organizing feature Graph : SOG) 기법은 안정된 세선화 결과를 가지는 장점이 있으나 학습 알고리즘에서 전체 노드를 재정돈하는 과정이 내포되어 있다. 본 본문에서는 학습 알고리즘의 재정돈 과정을 대신하는 점증적 정돈기법을 제안하고 이 기법을 세선화 알고리즘에 결합하여 실험하고 분석하였다. 제안된 알고리즘은 기존의 SO를 적용한 결과와 같은 우수한 세선화 결과를 얻으며 학습시간은 O((logM)$^3$)인 복잡도를 가진다.

• Proceedings of the Korea Contents Association Conference
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• 2014.11a
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• pp.391-392
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• 2014

지식과 정보가 다양하고 급속하게 변하는 정보화 시대를 살아가는 우리에게 필요한 것은 주어진 상황에 빠르게 대처하는 창의적인 사고이다. 이런 능력을 신장하기 위해서는 교육과정에도 창의력 신장을 위한 방법들이 모색되어야 한다. 본 연구는 초등학교 수학과 교육 과정의 한 부분인 '도형' 영역의 내용을 컴퓨터를 이용해 수업할 수 있도록 교육 지원 도구로 구현하였다.

• Journal of the Speleological Society of Korea
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• v.6 no.7
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• pp.28-31
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• 1981

본역의 Karst Terrain은 태백산맥 준령의 서록상에 위치하여 있으므로 한반도에 분포하는 Karst Terrain 중 고도가 가장 높은 것이다. 그 해발고도는 700m 내외이다. 백복령(833m) 생계령(826m) 자병산(871m) 등은 본역의 태백산맥 준령상에 있다. Karst Terrain이 분포하는 태백산맥 준령의 서측은 완만한 경사의 지형을 이루나 그의 동측은 급경사를 이루어 Karst 제현상의 형성과 발달과정에 매우 특이한 양상을 보여준다.(중략)

• The Journal of Korean Association of Computer Education
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• v.13 no.4
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• pp.13-26
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• 2010

The purpose of this study is to develop the enrichment curriculum connected to a Revised Version of 7th National Informatics Curriculum in Middle School for gifted students in IT education. This study uses a Delphi Method to develop a curriculum which is comprised of educational objectives, educational contents, teaching-learning method and educational evaluation. This study carried out a three-round delphi survey in 'The problem-solving method and its procedure' field from grade 1 to grade 3. In this study, first, the responses of the experts about educational objectives, educational contents, teaching-learning method and educational evaluation of each grade were analyzed. Second, organized items were designed. Finally, important items were selected by statistics.

• Journal of Conservation Science
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• v.33 no.6
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• pp.417-429
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• 2017

This study aimed at the identification of the black coating materials on the pottery surface and manufacturing technique of black burnished pottery excavated from the Pungnaptoseong, Seoul, which is estimated to be royal fortress of Beakje. According to observation of black coated surface and raw materials, potteries can be divided into two groups. The first group potteries have black inner and black surface with well-selected particles. Second group potteries are black in surface only with unevenly selected particles. Each group seems to represent different manufacturing technique in clay selection, color development timing and method. The black burnished pottery contains high values of CaO, $P_2O_5$, L.O.I. and lower content of $Fe_2O_3$ compared with gray pottery excavated from the same site, which indicates plant ashes were used for coloring the surface of pottery in black. According to the result of SEM-EDS mapping of black burnished pottery, carbon was concentrated on pottery surface, while iron was concentrated on the surface of the gray pottery. Based on XRD analysis, firing temperature of the black burnished potteries were fired low temperature range at 700 to $900^{\circ}C$, and that of the gray potteries ranged from $900^{\circ}C$ to $1000^{\circ}C$.

• Conservation Science in Museum
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• v.25
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• pp.9-26
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• 2021

This paper describes the production methods that were originally used for an arrow bundle excavated from a Bronze Age residential area in Auraji in Jeongseon, Gangwon-do Province and the conservation treatment process that it subsequently underwent. An arrow conventionally consists of an arrowhead and a shaft. It is rare to excavate a shaft along with an arrowhead in a complete form since the shaft is made of organic materials. Notably, the arrow bundle from the Auraji site is of great significance as it shows traces of tangless stone arrowheads attached to charred shafts and offers an important case of the split end of a piece of a tree being inserted into an arrowhead. For a further examination of the characteristics of the arrows from Auraji, microscopic investigation was conducted and the type of wood used for the arrow shafts was examined. The sequence and direction of processing and the particle sizes of the grinding tools were revealed through the analysis of traces of grinding on the stone arrowheads. The shaft is presumed to have been made from a green length of three-year-old willow (Salix spp.). A curing agent with a high degree of waterproofing and reversibility was used during the on-site curing process according to demands of the surrounding environment, and a technique that the authors call the "Bridge" method was used for emergency collection of the relics. Once the bundle was transferred to the conservation treatment lab, reinforcing materials were carefully chosen as it was important not to damage the relics during the process of turning them for the repair of their reverse sides. For this purpose, artificial clay was selected since it can safely bear a load and has excellent physical properties. Finally, detached parts were rejoined, the relics and their surrounding materials were cleaned, and the bottom sides were finished with epoxy resin prior to the display of the relics at the museum.