• 대한공간정보학회지
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• 제10권2호
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• pp.107-114
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• 2002

본 연구에서는 홍성지역의 수준점 및 삼각점에서 GPS 측량을 실시한 후 EGM96, OSU91A, KGEOID99 등의 지오이드모델 기반에서 정표고를 산정한 것과, 기지점 고정의 망조정에 의한 정표고 산정을 상호 비교하여, GPS/Leveling을 수준측량으로 적용할 수 있는 한계와 그 정확성을 평가함으로써 GPS/Leveling의 실용화를 위한 연구를 하였다. 기존 지오이드모델에 의한 정표고 산출 결과, RMSE는 $EGM96\;{\pm}0.061m,\;OSU91A\;{\pm}0.725m,\;KGEOID99\;{\pm}0.598m$로 EGM96 지오이드모델에 의한 결과가 가장 양호한 것으로 나타났다. GPS 망조정 결과에서는 수준점 3점 고정시 ${\pm}0.043m$의 RMSE를 나타내 고정점을 이용한 망조정이 효과적인 GPS/Leveling 방법으로 활용될 수 있음을 알 수 있었다. 수준측량의 허용오차를 감안할 때, GPS/Leveling은 공공측량시 4급 수준측량, 공공기준점의 표고 결정 등에 활용이 가능하다고 판단된다.

• 한국콘텐츠학회논문지
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• 제18권3호
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• pp.369-377
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• 2018

홍수 발생 시 제공되는 적절한 비상대처방안(EAP) 정보는 재난에 효과적으로 대응하기 위한 필수요소이며, 상습 침수지역과 예상지역의 인명 및 재산피해를 줄이는 중요한 역할을 한다. 국내에서 사용하는 대부분의 EAP는 국가위기관리기본지침의 위기경보 4단계를 근간으로 해당 시설물에 대한 단계별 대응업무를 규정하도록 되어 있다. 이와 관련하여 홍수통제소는 수위표 또는 해발고도를 기준으로 하천지점별 홍수주의보와 홍수경보를 계획홍수량의 50%와 70%를 기준으로 발현하고 있으나, 위기경보 각 단계별 설정기준과의 명확한 연관관계를 제시하고 있지 않다. 반면, 일본과 미국의 경우 수재해 대응단계를 구분하는데 있어 하천수위를 가장 중요한 판단기준으로 삼고 있으며, 국내보다는 높은 계획홍수위 설정기준을 갖고 있다. 이에 본 연구는 국내 하천홍수 대응 수재해 위기경보 4단계 설정기준을 개선하기 위하여 국내외 관련 규정 및 적용현황을 분석하였으며, 실무자 관점에서 실효성을 제고하기 위하여 위기경보단계별 설정기준을 상향조정하고 수위표 기준으로 표기방식을 개선하도록 제안하였다. 적용성 및 실효성 검증을 위하여 개선된 설정기준(안)을 수변구조물 재난대응 의사결정시스템에 적용하고 테스트베드에 대한 모의훈련을 실시하였다.

• Journal of Astronomy and Space Sciences
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• 제34권2호
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• pp.161-170
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• 2017

In this study, the characteristics of a horizontal sundial from the Joseon Dynasty were investigated. Korea's Treasure No. 840 (T840) is a Western-style horizontal sundial where hour-lines and solar-term-lines are engraved. The inscription of this sundial indicates that the latitude (altitude of the north celestial pole) is $37^{\circ}$ 39', but the gnomon is lost. In the present study, the latitude of the sundial and the length of the gnomon were estimated based only on the hour-lines and solar-term-lines of the horizontal sundial. When statistically calculated from the convergent point obtained by extending the hour-lines, the latitude of this sundial was $37^{\circ}$ $15^{\prime}{\pm}26^{\prime}$, which showed a 24' difference from the record of the inscription. When it was also assumed that a convergent point is changeable, the estimation of the sundial's latitude was found to be sensitive to the variation of this point. This study found that T840 used a vertical gnomon, that is, perpendicular to the horizontal plane, rather than an inclined triangular gnomon, and a horn-shaped mark like a vertical gnomon is cut on its surface. The length of the gnomon engraved on the artifact was 43.1 mm, and in the present study was statistically calculated as $43.7{\pm}0.7mm$. In addition, the position of the gnomon according to the original inscription and our calculation showed an error of 0.3 mm.

• 한국환경교육학회지:환경교육
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• 제9권1호
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• pp.58-71
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• 1996

The purpose of this study was to investigate the rural housewives' recognition and practice on environmental preservation. The subjects of this study were 300 rural housewives living in Chung-buk province. Questionaires were distributed to them during a week from August $25^{th}$ to August $31^{th}$ in 1995. Major findings were as follows: 1. The saved water quite well in washing their faces and the dishes compared with urban housewives, but they did not save water so well in using the lavatory. They used synthetic detergent, one of water pollutants, more often than natural soaps in shampooing and laundering. In addition, they did not use a measuring cup. It resulted in the waste of detergent and aggravation of water pollution. 2. Food waste was disposed of properly, but used batteries were not collected separately. A disposable vinyl bag was more commonly used than a reusable shopping basket. The reason for not using a shopping basket was bothering or uncustomary. Since most of them did not know refillable products of goods with environmental mark, they did not use those. Therefore, housewives should be educated in order to prevent soil pollution. 3. The use of spry-type pesticide and hair treatment, one of air pollutants, was wide-spread among them. They hardly recognized and practiced saving of electric power when they used household electric appliances. 4. The major source of environmental knowledge was mass media like TV of radio. Many of them did not know the practical ways to solve the environmental education program. In conclusion, low level of recognition and practice of rural housewives on environmental preservation indicated that a systematic environmental education program should be developed and implemented.

• 교육녹색환경연구
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• 제12권2호
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• pp.1-10
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• 2013

This study evaluates the relationship among the evaluation structure of morphological elements, the satisfaction on exterior elements, and the image evaluation for the campus landmarks by campus type. The investigation results are summarized as follows. 1) The university headquarter was nominated as the university landmark, and the main reason for the nomination was the building's historic and locational value. 2) Of the morphological elements of the campus landmark, 'proportion and balance' and 'harmony and order' were deemed important, while 'diversity' was deemed less important. 3) For the satisfaction on the facility's exterior elements, the evaluation structure was different for each university. However, the factor of 'location of the facility' was deemed the biggest factor for satisfaction for all universities, while the facility's 'color and material' were found to be the most dissatisfying factors. 4) The image evaluation on the facility was different for each university. Although there was a strong skeptical image about 'liveliness', there was a very positive image about 'elegance' and 'scale'. 5) On the relationship between the satisfaction on exterior elements and the image evaluation, there was a different evaluation structure for each university. 'Facility's color and exterior material' were the main elements which improved the overall image of the facility. Thus, the study results strongly suggest that an important task is to determine the maintenance direction through the emphasis on the relationship between exterior elements and image satisfaction for each university.

• 한국ITS학회 논문지
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• 제9권3호
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• pp.59-66
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• 2010

일반적으로 고속도로 영업소에서는 요금정산을 위해 차량이 감속, 정지, 가속행위를 행해야 하므로, 차량의 멈춤 없이 요금을 징수하는 자동요금징수체계(ETCS)의 일종인 하이패스차로 이용시보다 추가적인 연료소모가 발생하게 된다. 본 연구는 이를 증명하기 위해 현장 실험구간을 선정하고 연료소모량을 측정할 수 있는 실험용 차량을 제작하여 고속도로 영업소 이용방식에 따른 연료소모량을 비교하였다. 실험 결과, 일반차로를 이용하는 차량이 하이패스차로를 이용하는 차량보다 36.7%이상의 추가적인 연료소모가 발생하는 것으로 나타났다. 이에 근거하여 고속도로 상에서 2009년 1월부터 5월까지 실험차량과 동일한 차량들의 하이패스차로 이용에 의한 연료절감 효과를 추정해 본 결과 약 53.4억원의 연료소모비 절감효과가 나타났다. 실제 차량을 이용한 이러한 실험 방법과 분석결과는 하이패스 시스템의 효율성을 증명하는데 유용하게 활용될 것으로 기대된다.

• 한국초등과학교육학회지:초등과학교육
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• 제33권2호
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• pp.352-363
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• 2014

The purpose of this study was to develop a proper teaching strategy to raise students' interests and creative problem-solving ability in science. And the result of applying this developed teaching strategy to elementary science lesson were compared with that of traditional science lesson. For comparison, two classes of $5^{th}$ grade in S elementary school in B city were selected. After pre-test, one class, experimental group, took a science lesson applying developed teaching strategy and other class, comparative group, took a traditional science lesson. After respective lesson, two classes did post test. The results of this study can be summarized as follows. First, IAAI(Interest-Activities-Attainment-Initiation) teaching strategy was developed. IAAI teaching strategy was composed of 4 stages which were (1)interest in science, (2)science experiment activities, (3)attainment to science knowledge, (4)initiation of creative thinking and 4 stages were progressed in serial order in science lesson. Second, after lessons, the experimental group achieved higher mark in the test of science academic achievement than the comparative group and it was statistically meaningful difference. Third, after lessons, the experimental group was more improved in science-related attitudes than the comparative group and it was statistically meaningful difference. Fourth, after the lesson, the experimental group was more improved than the comparative group in the creativity test and the difference was statistically meaningful.

• 한국사회복지학
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• 제62권3호
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• pp.323-351
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• 2010

본 연구의 목적은 재독한인1세대 여성들의 이민생활에 나타난 가치관과 정체성의 변화과정을 초국가적 관점에서 생애사적 접근을 통해 재구성하는 데에 있다. 이를 위해 Schutze의 생애사적-내러티브 인터뷰 10개를 실시하였고, 인터뷰 자료는 그의 생애사적-내러티브 인터뷰 분석과 Mayring의 질적 내용분석 방법을 응용하여 분석하였다. 그 결과, 이민 초기의 가치관은 집단주의 중심적 혼성성을 보였는데, 이민생활과정에서 개인주의 중심적 혼성가치관으로 전환되고 있음을 포착하였다. 한편, 이민초기의 정체성은 단일지역적 정체성을 보였는데, 이민생활과정에서 이중지역적, 이중국가적 혼성정체성으로 초지역적, 초국가적 전환이 이루어지고 있음을 밝혔다. 이러한 연구결과에 근거해 이민생활에 나타난 가치관과 정체성의 변화과정에 주목한 이론적 및 실천적 함의를 제시하였다.

• 전기화학회지
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• 제12권4호
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• pp.335-341
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• 2009

Organic-inorganic hybrid sol-gel matrices were used as hosts for chloro (5, 10, 15, 20-tetraphenylporphyrinato) cobalt (III) (Co[TPP]Cl), a known ionophore for nitrite. The sol-gel precursor was prepared by the reaction of (3-isocyanopropyl) triethoxysilane with 1,4-butanediol. An appropriate amount of the anion-exchanger, tridodecylmethylammonium chloride (TDMAC) and the plasticizer, tributylphosphate (DBP) were used as membrane additives. On mixing with an acidic catalyst, the sol-state precursors slowly gelled, yielding a membrane in which the active components, Co[TPP]Cl and TDMAC, were encapsulated. The performances of the sol-gel membrane-based electrodes were compared to those of Co[TPP]Cl-based poly(vinyl chloride) (PVC) membrane electrodes. Membranes with a molar ratio of Co[TPP]Cl: TDMAC (1 : 0.1) showed reasonable response slopes toward nitrite. The response slopes were typically 53 mV/decade between $10^{-5.4}$ and $10^{-1.0}\;M$. Selectivities toward nitrite over hydrophilic and small anions such as chloride were somewhat inferior to those observed with PVC-based membranes, but selectivities over lipophilic anions were quite similar. Reduced asymmetry potentials due to protein adsorption were found to occur with the sol-gel matrix relative to PVC-based films when the sensors were employed as a detector in flow-through configuration.

• 한국조사연구학회지:조사연구
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• 제10권3호
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• pp.107-130
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• 2009

본 연구는 최근 점차로 확산되고 있는 기업에서의 모성보호제도들에 대한 연구로서 기업들이 다양한 모성보호제도들을 도입하고 실행하는 데 영향을 미치는 요인들을 신제도주의적 관점에서 분석한다. 사업체패널 조사자료를 분석한 결과 공공부문에 속하거나, 해외 자본투자를 받은 기업들, 우수기업을 벤치마킹하는 기업들, 그리고 인적자원관리 전담부서가 있는 기업들이 모성보호제도의 도입 및 실행에 보다 적극적인 것으로 나타났다. 이러한 분석결과는 신제도주의에서 제시하는 정당성 획득을 위한 제도의 도입이 한국의 기업들이 모성보호제도를 도입하고 실행하는 데에도 중요하다는 함의를 갖는다. 저출산 및 성차별 문제를 해결하기 위해 모성보호제도를 확산시키는 데 있어 이러한 제도적 요인들에 대한 정부 및 관련 기관들의 고려가 중요하다는 것을 본 연구결과는 제시한다.