• 한국벤처창업학회:학술대회논문집
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• 2023.04a
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• pp.101-116
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• 2023

본 연구는 농산업 예비창업자를 대상으로 자기결정성정도를 조절변수로 하여 창업환경과 창업역량이 창업의도에 미치는 영향을 탐색하였다. 창업환경을 인지된지원과 인지된장벽으로 구분하고 창업역량의 하위변수를 창의성, 문제해결, 의사소통, 마케팅 및 사업계획서를 하위변수로 설정하였다. 수집된 설문지 253부를 실증분석에 사용하였다. SPSS v25.0과 Process macro v4.2를 이용한 분석결과는 첫째, 창업환경의 인지된지원과 인지된장벽은 창업의도에 유의한 영향을 미치고 창업역량의 창의성, 문제해결, 마케팅 및 사업계획서가 창업의도에 미치는 영향은 유의적으로 나타났으나 의사소통이 미치는 영향은 비유의적으로 나타났다. 둘째, 자기결정성정도는 창업환경의 인지돤지원 및 인지된장벽과 농산업 창업의도 간을 조절하지 않는 것으로 나타났다. 이 결과는 자기결정의 수준은 창업 환경과 창업 의도 사이의 관계에는 그다지 큰 영향을 미치지 않음을 의미한다. 셋째, 자기결정성정도는 창업역량의 창의성, 문제해결, 의사소통, 마케팅 및 사업계획서와 창업의도 간을 조절하는 것으로 확인되었다. 구체적으로 자기결정성정도가 커질수록 창의성, 문제해결, 마케팅 및 사업계획서가 창업의도에 미치는 영향력의 크기는 정(+)의 방향으로 강하게 하는 강화작용의 역할을 하는 것으로 나타났다. 반면에 자기결정성정도가 커질수록 의사소통과 창업의도 간의 관계가 약해지는 자기결정성정도가 완화작용을 하는 것으로 나타났다. 후속 연구로는 창업환경과 창업역량을 설명할 수 있는 다른 요인들의 탐색과 새로운 매개변수와 조절변수가 포함된 조건부과정모형을 통해 조절된 매개효과를 분석할 수 있는 후속 연구가 필요할 것으로 보인다.

• Journal of Sensor Science and Technology
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• v.8 no.2
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• pp.148-153
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• 1999

In this paper, we developed and implemented the geological magnetic filter for the improvements of the signal to noise ratio of the magnetic detection system. Using the geological magnetic filter, we can remove the coherent noises in the time domain and improve the signal to noise ratio of the magnetic detection system. Numerical simulation results show that geological magnetic filter can excellently remove the sensor misalignment effects and the regular short range local noise as well as it delete the coherent noises. We confirmed that the geological magnetic filter improved the signal to noise ratio about 19dB and deleted the coherent noises with restoring the source magnetic signal through experiments by implemented system.

• Environmental and Resource Economics Review
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• v.9 no.5
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• pp.877-901
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• 2000

이전 가능한 환경오염으로부터의 피해자가 오염으로 인해 발생하는 피해를 줄이기 위한 방안으로 자기보호조치(self-protective measure)를 제공할 수 있다. 이 때 피해자들이 서로 비협조적으로 행동할 경우 피해자들의 자기보호조치 제공은 환경오염으로 인해 발생하는 시장실패 이외에 피해자들이 자기보호조치를 적정량 이상으로 제공함으로써 추가적인 시장실패를 발생시키게 된다. 이러한 경우에 사회최적 상태에 도달할 수 있도록 하는 최선의 정책은 환경오염을 발생시킨 측과 자기보호조치를 과다하게 제공하는 피해자 모두에게 피구비안(Pigouvian) 세금을 부과하는 것이다. 만약 오염자가 방출되는 오염물의 양을 줄이기 위해 예방조치(preventive measure)를 취함에 있어서 그 죄가 피해자에게 주는 실질 효력이 불확실할 때 피해자의 반응은 자기보호조치의 예방조치에 대한 한계생산곡선의 모양에 좌우된다. 또한 자기보호조치의 제공과 예방조치의 효력에 대한 위험성간의 관계는 피해자의 생산함수 형태에 좌우된다.

• Journal of Sensor Science and Technology
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• v.6 no.6
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• pp.458-465
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• 1997

In this paper, a theory of the geological magnetic filter for the improvements of the signal to noise ratio of the magnetic detection system has been developed. The geological magnetic filter takes two sequences of magnetic fields measured from the reference sensor and the detector sensor and calculate the correlations between them in the frequency domain. Using the filter, we can remove the coherent noises in the time domain and improve the signal to noise ratio of the magnetic detection system. With the recent developments of the DSP hardware technology the geological magnetic filter can be easily implemented using the digital signal processor. We show the ability of the geological magnetic filter under various circumstances through computer simulations. Numerical simulation results show that geological magnetic filter can excellently remove the sensor misalignment effects and the regular short range local noise as well as it delete the coherent noises.

• Journal of the Korean Institute of Intelligent Systems
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• v.24 no.3
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• pp.259-264
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• 2014

This paper is research paper on the MPD(Magnet Position Device) for the outdoor MGV(Magnet /Magnet Gyro Guidance Vehicle). Usually, MGV is used in indoor environment because of a measurement height of the magnet position device. CMPD(Commercial magnet position device) has 30 mm measurement height, so this is suitable structure in indoor environment like to a flat surface. Outdoor environment is an uneven and irregular, So Outdoor MGV must has a suspension. But CMPD is unsuitable for outdoor environment because of a collision with a surface caused by suspension. Thus, measurement height of the outdoor MPD is positively necessary more than 100 mm. So, we suggest the outdoor MPD using analog magnet hall sensor, moving average filter and Characteristic(rate of the magnet hall sensor) function of the localization. Result of the experiments, the proposed Magnet Position Device for the outdoor MGV has localization accuracy 4.31 mm, measurement height 150 mm and width 150 mm and is efficient more than CMPD.

• Bulletin of the Korean Space Science Society
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• 2009.10a
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• pp.44.2-44.2
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• 2009

한국천문연구원 태양우주환경연구그룹은 우주환경예 경보 연구에 활용하기 위하여 일본 Tierra Tecnica사의 RFP-523C 지자기 측정 시스템을 보현산천문대 태양망원경동에 구축하였다. 보현산 지자기 측정 시스템은 2007년 11월에 구축이 완료되어 현재 우주환경 변화에 의한 지자기 변화를 측정 및 저장하고 있다. 보현산 지자기 측정 시스템으로 측정한 지자기 자료를 사용하여 2008년부터 2009년 8월까지 보현산 지역의 지자기 일변화와 연변화를 연구하였다. 지자기 일변화와 연변화는 태양활동에 의한 영향을 받아 변화하는데, 지자기 일변화는 K 지수를 산출하는데 사용되고 지자기 연변화는 보현산 지역의 장기간 동안의 지자기 변동을 연구하는데 사용된다.

• Journal of Industrial Convergence
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• v.20 no.2
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• pp.21-27
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• 2022

Purpose: The purpose of this study is to investigate the structural relationship between self-directed learning, online class environment, and learning satisfaction of general high school students. 219 12th grade students in Sejong B High School responded to the survey questionnaire. For data analysis, correlation analysis and structural equation models were implemented. Results are as follows. First, there was a moderate or higher correlation between self-directed learning, online class environment, and learning satisfaction. Second, the model fit of the structural model among variables was good. Self-directed learning had an effect on the online class environment, and the online class environment had a positive effect on learning satisfaction. However, self-directed learning had no statistically significant effect on learning satisfaction. The researcher found the implication that learners' online class satisfaction showed a synergistic effect when students' self-directed learning ability and educators' excellent class environment are created. Also, the researcher proposed to analyze online learning satisfaction by comprehensively considering the individual, family, and school factors of various learners.

• Proceedings of the KSEEG Conference
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• 2000.04b
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• pp.171-174
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• 2000

• Journal of the Korean Institute of Intelligent Systems
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• v.20 no.4
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• pp.489-496
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• 2010

In this paper, a self-organization framework for swarm systems in three dimensions is presented. The framework uses artificial potential functions(APFs) to direct the robots toward the goal as well as to keep them in a swarm system. This research extends conventional APFs used for self-organizations in two dimension environment to three dimensions. In three dimension environment, the ground potential for the boundary surfaces that commonly appear in three dimension environments is proposed. Accordingly, the comparison between the paths without and with the ground potentials shows the necessity and effect of ground potentials. Extensive simulations are given to show the effectiveness of the extended potentials and various properties in three dimension environments.

• The Journal of the Convergence on Culture Technology
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• v.7 no.4
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• pp.511-517
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• 2021

This study is a descriptive investigative study to correlate of learning flow, self-directedness, self-regulated learning ability and learning achievement of nursing students who in non-face-to-face learning environment. The subjects of the study were 179 nursing college students based in B, G city, who collected data from September to October 2021. The data analysis used the SPSS 24.0 program and performed descriptive statistics and correlation analysis. As a result of the study, the average learning flow was 38.54±7.87 points, self-directedness was 134.83±19.81 points, self-regulated learning ability was 42.93±5.98 points and learning achievement was 15.03±2.56 points. The relationships among learning flow, self-directedness, self-regulated learning ability, and learning achievement showed significant positive correlations. Therefore, strategies to increase the learning achievement of nursing college students in a non-face-to-face environment, and environmental improvement and institutional support to increase learning flow are needed.