• Science & Technology Policy
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• v.7 no.7 s.100
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• pp.22-36
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• 1997

목차 1. 학습경제에서의 발전 전략 2. 개발도상국의 산업화과정에서 연구개발과 기술이전의 역할 3. 전환기를 맞은 한국의 기술혁신시스템 4. 동아시아와 동남아시아의 기술혁신시스템 5. 수요기업의 진입과 한국 자본재산업의 발전 6. 계약, 기업능력 그리고 경제발전: 신흥공업국에 대한 함의 7. 인터넷 기반의 국가혁신시스템이 아시아에 주는 의미 8. 국제기술협력과 기업의 동력 :NIEs의 의미 9. 삼성반도체의 동태적 기술경영능력에 대한 사례연구 10. 수평적 기술정책에 대한 학습론적 접근: 진화론적 인식 11. 아시아 신흥공업경제국가들의 효과적인 기술혁신 12. 한국의 산업발전과정에서 과학기술정책의 역할

• Proceedings of the Korea Contents Association Conference
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• 2018.05a
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• pp.247-248
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• 2018

본 연구의 목적은 온라인 학습자들의 학습효과를 높힐 수 있는 교수 학습환경을 마련하기 위한 기초자료를 제공하기 위함이다. 본 연구에서는 온라인 학습자들의 학습성취와 학습만족에 미치는 학습자 개인요인- 건강, 가족지원 정도, 컴퓨터 능력, 취업여부, 자기조절학습능력- 에 초점을 두어 분석하였다. 본 연구는 서울사이버대학교 사회복지학부 재학생을 대상으로 수집된 총 226개 설문지를 회귀분석방법으로 분석하였다. 연구결과 학습성취에는 학습자 개인의 건강, 자기조절학습능력이 유의미한 영향을 보였고, 학습만족에는 가족들의 지원 정도와 자기조절학습능력이 영향을 나타냈다.

• Korean Journal of Optics and Photonics
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• v.32 no.6
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• pp.286-295
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• 2021

A modified catadioptric omnidirectional optical system (MCOOS) using an RGB/NIR CMOS sensor is optically designed for a capsule endoscope with the front field of view (FOV) in visible light (RGB) and side FOV in visible and near-infrared (NIR) light. The front image is captured by the front imaging lens system of the MCOOS, which consists of an additional three lenses arranged behind the secondary mirror of the catadioptric omnidirectional optical system (COOS) and the imaging lens system of the COOS. The side image is properly formed by the COOS. The Nyquist frequencies of the sensor in the RGB and NIR spectra are 90 lp/mm and 180 lp/mm, respectively. The overall length of 12 mm, F-number of 3.5, and two half-angles of front and side half FOV of 70° and 50°-120° of the MCOOS are determined by the design specifications. As a result, a spatial frequency of 154 lp/mm at a modulation transfer function (MTF) of 0.3, a depth of focus (DOF) of -0.051-+0.052 mm, and a cumulative probability of tolerance (CPT) of 99% are obtained from the COOS. Also, the spatial frequency at MTF of 170 lp/mm, DOF of -0.035-0.051 mm, and CPT of 99.9% are attained from the front-imaging lens system of the optimized MCOOS.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.17 no.4
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• pp.451-458
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• 2004

The study was focused on the development of computational scheme in three dimensional configurations by applying effective heat capacity model to the numerical procedure in order to predict the temperature profiles of a buried pipeline and the frozen penetration depth(FPD) of a freezing soil medium. To realize this, the investigator conducted the unsteady state heat transfer analysis, using the commercial code ABAQUS, for the freezing granite soil medium including a pipeline in a closed system. The proposed model took into consideration the phase change effect of in situ pore water in the frozen fringe. The comparison of results obtained by the proposed model and the actual performances was valuable in establishing a level of confidence in the application of introduced theory.

• Korean Journal of Optics and Photonics
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• v.12 no.3
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• pp.190-199
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• 2001

In this paper, we have researched the depth of focus (DOF) and cutoff intensity of the $0.1{\mu}m$rule dense line'||'&'||'space pattern according to the various off-axis illumination (OAl) conditions in the optical system of 0.65 NA using ArF excimer laser (193 nm). We have also studied the variation of the DOF and cutoff intensity according to the sub-resolution pattern (hammer head type) size for optical proximity correction (OPC) applied to the capacitor pattern and the various OAl conditions in the same optical system. As a result, it is revealed that the cross type quadrupole or annular illumination is preferred to the conventional X type quadrupole for printing the $0.1{\mu}m$ rule dense pattern. Also, we can investigate the optimal illumination condition and the size of ope sub-resolution pattern to keep a consistent DGF and cutoff intensity trends.

• Korean Journal of Optics and Photonics
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• v.17 no.2
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• pp.149-158
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• 2006

We have analyzed various tolerances of the multi-configurative microscopic system for inspecting the wire-bonding of a reed frame by using the Gaussian bracket method and the equivalent lens method. The tolerances for the curvature and the thickness, which are axial symmetric tolerances, are given by varying the back focal length within a fecal depth under diffraction-limited conditions. Moreover, by using the trial and error method, the axial non-symmetric tolerances for decenter and tilt are established by assigning the 5% variation of MTF(modulation transfer function) at the spatial frequency of 50 lp/mm and at the field angle of 0.7 field. As the tolerances with the most probable distribution are distributed within the range of the decay rate of less than 5% independent of the probability distribution of tolerances, we can achieve completely the desired design performances of the multi-configurative microscopic system by using the various ranges of these tolerances.

• Journal of Digital Convergence
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• v.20 no.5
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• pp.331-336
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• 2022

This study proved that the importance of Alderfer's ERG theory. it checked the effects of these three elements on organization-based self-esteem through resilience. In particular, the relationship between the ERG and the psychological factors of the members of the organization is investigated. Moreover, we attempt to verify the mediating effect of resilience on the relationship between ERG and organization-based self-esteem. This study was used for analysis a survey on data 265 employees in 10 organizations. The major finding are as follows. it was found that all three elements of ERG was positively effected resilience. Furthermore, resilience was found to improve the level of organization-based self-esteem. Finally, it was found that resilience have played a mediating role on the relationship between the ERG and organization-based self-esteem. In the conclusion, the summary and implications of the study and the future direction of the study were presented.

• Journal of Korean Ophthalmic Optics Society
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• v.5 no.1
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• pp.13-18
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• 2000

In this paper, we use the C light which is a daylight and consider the incident beam having the Gaussian amplitude. We investigated the illuminance distributions and the variation in chromaticity of optical system having the truncated Gaussian amplitude on the focal plane and along the optical axis using the C light source. We also use the three sensitivity functions of human eye(CIE 1931) for wavelengths which are from 380nm to 780nm. When the truncation grade of incident beam having Gaussian amplitude decreases, the size of central spot on the focal plane and the depth of focus along the optical axis decrease, and the variation in chromaticity on the focal plane and along the axis increases rapidly. As the illuminance on the focal plane decreases the variation in chromaticity of optical system increases rapidly, and as the depth of focus increases the variation in chromaticity of optical system decreases.

• Proceedings of the Korea Water Resources Association Conference
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• 2020.06a
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• pp.267-267
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• 2020

농업유역은 농업 활동이 이루어지는 농경지와 산림지, 주거지 등으로 구성되어 있으며, 농경지에서 필요한 물을 확보, 공급하기 위한 수원공시설이 위치하고 있다. 수원공은 하천수 및 지하수를 저류, 취수하여 관개 지구에 공급하게 되는데 이로 인하여, 상, 하류 하천유황이 증가하거나 감소하게 된다. 물순환이란 비나 눈이 내려 침투, 유출, 증발산 등의 과정을 통해 공간적, 시간적으로 변화하며 이동하는 자연적인 현상을 말하며, 상하수도 등 배수시설의 영향에 따라 발생하는 인공계 물순환도 광범위한 물순환에 포함된다. 최근 불투수면의 증가, 과도한 지하수 사용 등으로 인해 하천의 건천화, 지표유출량 증가 등 물순환 구조가 왜곡되고 있으며 왜곡된 물순환 회복을 위해 물순환 선도도시 조성, 물순환 회복조례가 신설되는 등의 노력이 있었다. 물순환 선도도시 조성 및 회복조례는 불투수면의 저감, LID 기법 적용 등을 통한 물순환 개선에 초점을 맞추고 있으나, 농업유역의 물순환은 농경지와 농업용수 공급을 위한 수원공에 큰 영향을 받아 이를 통한 물순환 개선에 초점을 맞춰야 한다. 본 연구에서는 농업유역의 농경지 및 수원공 관리방안에 따른 유역 단위 물순환 변화를 평가하고자 하였다. 이를 위해 모듈 기반 농업유역 수문모형을 통해 농업유역 물순환을 모의하였으며, 물순환율 개념을 통해 유역 단위 물순환 변화를 평가하였다. 물순환율은 환경부에서 제시한 (1-직접유출률) (%)의 식과 농업유역 특성을 반영한 농업유역 물순환율 두 가지를 통해 평가하였다. 농업유역 수자원 관리방안은 수원공인 농업용 저수지의 제한 수위운영에 따른 효과와 농경지는 관개 지구에 물꼬 및 담수심 관리방안을 적용하였으며 각 관리방안에 따른 물순환율을 도출하였다. 농업용 저수지는 제한 수위운영을 통한 유역 물순환 개선 효과를 확인하였으나 관개 지구에 적용한 물꼬 및 담수심 관리방안의 효과는 미비한 것으로 나타났다.

• Korean journal of communication and information
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• v.55
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• pp.33-49
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• 2011

Communications deliberation conducted by Korea Communications Standards Commission(KCSC) has been caught up in controversy in terms of the legitimacy of KCSC and its operating system. But there is few or no analysis of the state of affairs concerning the subject. This article critically examines the proceedings of KCSC in 2010 and attempts to see how true and reasonable some points of issues towards communications deliberation raised mostly by civic groups are. The study pays particular attention to unfaithful and arbitrary deliberation and broadness of the items of deliberation. By doing so, the article tries to suggest some alternative ways for improving the system of communications deliberation in Korea.