• 농촌계획
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• 제9권3호
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• pp.41-46
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• 2003

The study was focused on setting priority for future core technologies in rural development and resources using AHP. The technologies were derived by Delphi method. Evaluation criteria for the priority setting were decided as 'technology', 'market oriented', and 'public concerns' by council. The future core technologies were divided as four groups by importance and R&D level. Technologies in upper two groups were considered in the study. Group I had high importance and high R&D level. Group II had high importance and lower R&D level. Questionnaires were given to 9 specialists in agricultural resources. As the results, 'public concerns' was decided as a most important evaluation criterion. The most important technologies are "technology developing for animal feces and urine treatment, and restoration it to farm land" in group I, and "technology developing for agricultural by-products as energy source" in group II.

• Journal of Biosystems Engineering
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• 제29권2호
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• pp.187-194
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• 2004

The study focused on setting priority among the future core technologies that were derived by Delphi in agricultural management ＆ information using analytic hierarchy process(AHP). Items for setting priority were decided as ‘technology’, ‘market’, and ‘public concerns’by council. The future core technologies were divided into four parts by importance and R＆D level. Technologies which consisted of upper two parts having higher importance were considered in the study. Questionnaires were given to 9 specialists in biosystems engineering. As the results, ‘market’ was decided as a most important item. The most important technologies were ‘Developing technology and system of post harvest processing for higher quality rice’ in group I, and ‘Developing sensor technology to evaluate quality and safety for agricultural products’ in group II.

• 한국분말야금학회:학술대회논문집
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• 한국분말야금학회 2006년도 Extended Abstracts of 2006 POWDER METALLURGY World Congress Part2
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• pp.1130-1131
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• 2006

We found that the """interface reaction between Ni-based alloy bond, diamond, and steel core is very critical in bond strength of diamond tool. None element from metal bond diffuses into the steel core but the Fe element of steel core was easily diffused into the bond. This diffusion depth of Fe has a great effect on the bonding strength. The Cr in steel core accelerated the Fe diffusion and improved the bond strength, on the other hand, carbon decreased the strength. Ni-based alloy bond including Cr was chemically bonded with diamond by forming Cr carbide. However, the Cr and Fe in STS304 were largely interdiffused, the strength was very low. The Cr passivity layer formed at surface of STS304 made worse strength at commissure in brazing process.

• 한국산학기술학회논문지
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• 제17권3호
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• pp.144-152
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• 2016

본 연구는 간호대학생의 핵심역량과 간호전문직관 및 취업전략과의 관계를 파악하기 위한 서술적 상관관계 조사연구이다. 자료수집은 2014년 11월 1일부터 11월 28일까지 B시와 G시 소재 4년 간호대학생 107명 대상으로 구조화된 설문지로 수집하였다. 수집된 자료는 SPSS 22.0 프로그램을 사용하여 분석하였다. 연구의 평균값은 핵심역량은 3.57점, 간호전문직관 4.22점, 취업전략 3.69점이었다. 핵심역량과 간호전문직관(r=.401, p<.001), 핵심역량과 취업전략(r=.559, p<.001), 간호전문직관과 취업전략(r=.465, p<.001)는 양의(+) 상관관계이었다. 취업전략에 영향을 미치는 요인은 핵심역량(${\beta}=.43$, p<.001)와 간호전문직관(${\beta}=.28$, p=.001), 학교성적(${\beta}=-.19$, p=.011)이었으며 취업전략의 약 42%를 설명하였다(F=24,82, p<.001). 결론적으로, 간호대학생의 핵심역량은 간호전문직관과 취업전략과의 양의(+) 상관관계가 있었다. 따라서 간호대학생의 핵심역량, 간호전문직관과 취업전략을 향상시키기 위해 반복연구, 프로그램개발과 교육과정개선이 필요하다.

• 한국산학기술학회논문지
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• 제19권6호
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• pp.677-682
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• 2018

관계분석형 R&D 포트폴리오 방법은 중점기술의 선정기준이 독립적일 경우 각 선정기준의 고유한 목적과 특성을 반영하여 중점기술을 선정하는 방법이다. 본 연구는 중점기술을 도출하기 위한 방법으로 관계분석형 R&D 포트폴리오 방법을 제시하고 선정기준과 분석지표간의 상관관계 분석하는 1단계, 각 선정기준에 최적으로 부합하는 포트폴리오 매트릭스를 구성하는 2단계, 중점기술을 도출하는 3단계로 나누어 방법론을 적용하는 과정을 서술하였다. 본 연구에서는 중점기술을 선정하기 위한 4대 선정기준과 기술수준, 경제성, 기술성을 파악하기 위한 분석지표간의 상관관계를 HoQ를 응용한 표로 작성하였다. 상관관계표를 바탕으로 각 선정기준을 최적으로 만족하기 위해 고려해야 할 분석지표를 도출하였으며, 도출된 분석지표와 선정기술을 두 축으로 포트폴리오 매트릭스를 구성하였다. 4대 기준을 모두 충족하는 충족형 포트폴리오 P0와 4대 선정기준의 고유한 특성을 반영하여 각 선정기준을 효과적으로 충족하는 포트폴리오 P1~P4를 구성하여 중점기술을 도출하였다. 선정된 중점기술은 명세기반의 키워드 분석 등의 과정을 거쳐 미래 안보환경에 대응하기 위한 중점분야 선정에 활용될 수 있다.

• 한국간호교육학회지
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• 제24권3호
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• pp.279-289
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• 2018

Purpose: The study is to confirm the influence of self-efficacy, critical thinking disposition, self-leadership, and communication competency on the core competencies of the preceptor. Methods: Data were collected from August 27 to September 7, 2017 using structured questionnaires for 127 preceptors at a general hospital located in Korea. SPSS/Win 23.0 was used to analyze the frequency, percentage, mean, standard deviation, independent t-test, one-way ANOVA, Pearson's correlation coefficients, and stepwise multiple regression. Results: The mean score of the core competencies of the preceptors was $3.94{\pm}0.35$ (range 1-5); self-efficacy was $3.88{\pm}0.49$; critical thinking disposition was $3.54{\pm}0.36$; self-leadership was $3.66{\pm}0.39$; communication competency was $3.71{\pm}0.35$. There were no statistically significant differences between the core competencies of the preceptor and general characteristics. The core competencies of the preceptors were significantly correlated with self-efficacy (r=.61, p<.001), critical thinking disposition (r=.69, p<.001), self-leadership (r=.59, p<.001), and communication competency (r=.58, p<.001). The core competencies of the preceptors were affected by critical thinking disposition (${\beta}=.54$, p<.001), followed by communication competency (${\beta}=.24$, p<.001). The explanatory power by the factors was 51% (F=63.66, p<.001). Conclusion: The results suggest that critical thinking disposition and communication competency are important predictors of the core competencies of the preceptors.

• 한국컴퓨터정보학회논문지
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• 제29권2호
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• pp.145-152
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• 2024

본 연구는 자기효능감, 전공만족도, 임상실습 스트레스가 간호대학생의 핵심간호술 수행자신감에 미치는 영향을 알아보고자 시행되었다. 경상북도 소재 K대학교 간호학과 3,4학년 142명을 대상으로 구조화된 설문지를 통해 자료를 수집하고 SPSS/WIN 22.0 프로그램을 이용하여 분석하였다. 연구결과 일반적 특성에 따른 핵심간호술 수행자신감은 학년(F=-2.08, p<0.05)에서 유의한 차이를 보였다. 핵심간호술 수행자신감은 자기효능감(r=.50, p<.001)과 전공만족도(r=.62, p<.001)와 유의한 양의 상관관계를 나타내었으며, 핵심간호술 수행자신감에 영향을 미치는 요인은 전공만족도(β=.49, p=.002), 자기효능감(β=.24, p<.001)으로 41.7%의 설명력을 가지는 것으로 확인되었다. 본 연구 결과를 바탕으로 핵심간호술 수행자신감을 향상시키기 위한 교육적 전략을 수립하고 이와 더불어 자기효능감과 전공만족도를 향상시킬 수 있는 방안이 필요할 것으로 보인다.

• KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
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• 제4B권2호
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• pp.54-58
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• 2004

This paper presents the iron core design method of a high temperature superconducting (HTS) transformer considering voltages per turn (V/T). In this research, solenoid type HTS coils were selected for low voltage (LV) winding and double pancake coils for high voltage (HV) winding, just as in conventional large power transformers. V/T is one of the most fundamental elements used in designing transformers, as it decides the core cross sectional area and the number of primary and secondary winding turns. By controlling the V/T, the core dimension and core loss can be changed diversely. The leakage flux is another serious consideration in core design. The magnetic field perpendicular to the HTS wire causes its critical current to fall rapidly as the magnitude of the field increases slowly. Therefore in the design of iron core as well as superconducting windings, contemplation of leakage flux should be preceded. In this paper, the relationship between the V/T and core loss was observed and also, through computational calculations, the leakage magnetic fields perpendicular to the windings were found and their critical current decrement effects were considered in relation to the core design. The ％ impedance was calculated by way of the numerical method. Finally, various models were suggested.

• 대한기계학회논문집
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• 제12권2호
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• pp.349-358
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• 1988

본 연구에서는 낮은 종횡비의 직각밀폐용기의 경계층흐름영역에 대하여 Lee에 의해 공식적인 수학적 방법으로 얻어진 코어방정식을 기초로 코어흐름 형상을 근사해석으로 구하였으며 그 결과를 다른 연구자들의 결과와 비교, 검토하였다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2010년도 춘계 학술발표회
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• pp.871-876
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• 2010

When surface Concrete Face Rock fill Dam constructs than existent center core type rock fill dam, it is much prevalent form in domestic these day by quality control of that is profitable and weather condition etc. of coreZone. C.F.R.D is less research about seismic survey(Refractional Seismic Prospectin, Resistivity Prospecting) of levee body than fill dam. Thus as C.F.R.D seismic survey is less, safety of that consist is short most development flue is high reason. That is not checking target of minuteness safety diagnosis and so on by short operation period. Wish to analyze inquiry incidental and difference with center core type dam and acquire C.F.R.D preservation administration upper necessary inquiry condition forward hereafter.