국.공립대학 예산회계제도의 개선

김동건,Kim, Dong-Geon 한국대학교육협의회 1983 大學敎育 Vol.6 No.-

납입금의 현실화와 자율화

김동건,Kim, Dong-Geon 한국대학교육협의회 1987 大學敎育 Vol.29 No.-

초음파유화술과 후방인공수정체 삽입술을 시행한 성인에서 발생한 동공차단

김동건,정인영,Dong-Gun Kim,In-Young Chung 대한안과학회 2005 대한안과학회지 Vol.46 No.8

Purpose: To report on the pupillary block that rarely occurs after phacoemulsification with posterior chamber intraocular lens (IOL) implantation. Methods: A series of four eyes in four diabetic patients treated for pupillary block after uneventful phacoemulsification with posterior chamber IOL is described. Results: The interval between pupillary block development and the cataract surgery ranged from 1 week to 19 weeks. In all eyes, neodymium-YAG laser peripheral iridotomy relieved the block (-one procedure in three patients; and two procedures in one-). Conclusions: Despite the rarity of the complication of pupillary block after phacoemulsification with posterior chamber IOL, physicians should require closer follow-up is necessary, especially in diabetic patients.

꼬마잠자리(Nannophya pygmaea Rambur: Libellulidae, Odonata) 알의 부화에 미치는 온도의 영향

김동건,염진화,윤태중,배연재,Kim, Dong-Gun,Yum, Jin-Whoa,Yoon, Tae-Joong,Bae, Yeon-Jae 한국응용곤충학회 2006 한국응용곤충학회지 Vol.45 No.3

멸종위기종인 꼬마잠자리의 부화율을 5개의 온도조건($10,\;15,\;20,\;25,\;30^{\circ}C$)에서 조사하였다. 꼬마잠자리의 알은 2006년 7월 경상북도 문경시 일대의 한 작은 습지에 서식하는 암컷 성충으로부터 채취하였다. 부화율은 100일 동안 부화한 유충의 수로부터 구하였다. 꼬마잠자리의 알은 20, 25 및 $30^{\circ}C$의 온도조건에서 각각 83, 89 및 76%가 부화하였으며, $10^{\circ}C$와 $15^{\circ}C$에서는 실험기간동안 부화하지 않았다. 꼬마잠자리 알의 부화 임계온도는 $14.3^{\circ}C$로 추정되었으며, 다른 온대성 잠자리류보다 상대적으로 높았다. The hatching rate of the eggs of Nannophya pygmaea Rambur, an endangered dragonfly species in Korea, was experimented in different temperature conditions ($10,\;15,\;20,\;25,\;and\;30^{\circ}C$) in laboratory. N. pygmaea eggs were collected from female adults inhabited a small wetland in Mungyong-si, Kyeongsangbuk-do, Korea, in July 2006. The hatching rate was evaluated from the number of hatched nymphs for the period of 100 days. As a result, the hatching rates were 83, 89, and 76% at $20,\;25,\;and\;30^{\circ}C$, respectively; however, eggs were not hatched at $10^{\circ}C\;and\;15^{\circ}C$ during the experiment period. The derived thermal threshold for egg hatching was $14.3^{\circ}C$, which is relatively higher than the values of other temperate dragonflies.

화상환자 치료와 화상전문병원

김동건,Kim, Dong-Geon 한국화재보험협회 2002 防災와 保險 Vol.92 No.-

BRDF를 고려한 적외선 신호의 반사 성분 고속 연산기법에 관한 연구

김동건,한국일,최준혁,최순호,김태국,Kim, Dong-Geon,Han, Kuk-Il,Choi, Jun-Hyuk,Choi, Soon-Ho,Kim, Tae-Kuk 한국군사과학기술학회 2017 한국군사과학기술학회지 Vol.20 No.1

This paper is a part of developing a computer code that can be used to generate synthetic IR images by calculating the outgoing infrared signal from objects. To predict the reflected component that is a part of the outgoing IR signal, such as those components reflected from the target surface by the solar and sky irradiations, it is necessary to calculate the complicated BRDF values for considering the directional surface reflection characteristics. Since the calculation of reflectance using the BRDF requires a large amount of computation time due to the hemispherical integral term, it is frequently restricted in applying for a real-time prediction of IR signal. In this research, the simplified method for calculating IR reflected component has been proposed by replacing the integral terms into two parts, a directionally uniform component and a step function representing the specular component, to reduce computation time. The proposed method is proved to result in very fast calculation of the BRDF (up to 600 times faster calculations) for most of the surfaces with minimal loss of the accuracy.

A Rate Dependent Plasticity Model under Cyclic Loading of Metals

김동건,Kim, Dongkeon,Dargush, Gary F. Korean Society for Advanced Composite Structures 2013 복합신소재학회논문집 Vol.4 No.1

In real world applications, the response of structures may be dependent on the rate of loading and thus can be affected by transient loading, especially when the rate of loading is significant. In such situations, the rate of loading may become a major issue to understand structures during earthquake excitation or under blast or high velocity impact. In some cases, the rate effect on structures under strong earthquake excitation cannot be ignored when attempting to understand inelastic behavior of structures. Many researchers developed the constitutive theories in cyclic plasticity and viscoplasticity. In this study, numerical simulation by cyclic visocoplasticity models is introduced and analyzed. Finally, the analytical results are compared with experimental results as a means to evaluate and verify the model.

IT기업의 학습지향성과 환경불확실성의 상호작용이 마케팅역량에 미치는 영향

김동건,신택현,Kim, Dong-Gun,Shin, Tack-Hyun 한국시뮬레이션학회 2016 한국시뮬레이션학회 논문지 Vol.25 No.3

본 연구는 우리나라 IT기업을 대상으로 환경불확실성과 학습지향성의 상호작용이 조직성과의 하나인 마케팅역량에 미치는 영향을 탐색적으로 살펴보고자 하였다. AMOS와 SPSS를 활용한 통계분석 결과, 직원수 500인 미만의 소규모 조직일수록 자신들이 직면한 환경불확실성에 보다 적극적으로 그리고 유연하게 대응하려는 경향이 농후했으며, 이 같은 환경에의 반응을 통해 마케팅역량의 증대라는 긍정적 성과를 가져왔다. 반면에 직원수 500인 이상인 기업의 경우는 그 어떤 유의한 상호작용효과도 보여주지 못했다. 이 같은 연구결과는 조직규모에 따른 경쟁 환경 및 시장지배력의 차이가 IT기업의 환경적응 메커니즘에서도 차이를 가져온 것이라는 추론을 가능케 한다. 다만, 이 같은 유추는 IT기업의 유형과 특성이 매우 이질적이라는 점에서 일정한 한계를 지닌다. 따라서 IT산업의 표본을 확장한 후속연구와 타산업과의 비교연구에 대한 필요성이 있다. This study intended to exploratively depict the influence of interaction between Environmental Uncertainty and Learning Orientation of Korean IT companies on Marketing Capability which was adopted as one of the organizational performance indicator. Statistical Results based on AMOS and SPSS showed that smaller-sized companies under 500 employees are more inclined to desperately and flexibly meet and adapt to their environmental uncertainty, resulting positive performance, that is, marketing capabilities. On the other hand, larger-sized companies over 500 employees showed no significant interaction effect. This result of the study induces the reasoning that the differences in competitive environment and market leadership accrued by organizational size may also incur differences in environmental adaptive mechanism. However, this reasoning can have some limitation in that the types and traits of IT firms are so different. Therefore, this topic suggests the necessity of follow-up researches using enlarged samples in IT industry and comparative studies in other industries.

피부암

김동건,Kim, Dong-Geon 한국건강관리협회 1996 건강소식 Vol.20 No.9

각종 공해로 인한 오존층의 파괴와 더불어 피부에 생기는 암에 대한 관심이 높아지고 있다. 피부암은 크게 양성종양과 악성종양으로 나눌수 있는데, 본 글에서는 대표적인 피부악성종양인 기저세포암, 편평세포암, 그리고 악성흑색종에 관하여, 각각의 원인(특히 태양광선과의 관계), 증상. 치료방법 및 예방법 등을 알아보고자 한다.

PIV기법을 이용한 병렬 평면제트의 유동특성 (I) - 유입이 제한된 제트 -

김동건,윤순현,Kim, Dong-Keon,Yoon, Soon-Hyun 대한기계학회 2003 大韓機械學會論文集B Vol.27 No.3

Experiments were conducted to show the characteristics of the flow on unventilated parallel plane jets. Measurements of mean velocity components and turbulent intensities were carried out with a particle image velocimetry to investigate the flow field generated by the air issued from two identical plane parallel nozzles and mixed with the ambient air. The measurements range of these experiments were Reynolds number of 5300 based on the nozzle width and the cases of nozzle-to-nozzle distance were four times. six times and eight times the width of the nozzle. Results show that a recirculation zone with a sub-atmospheric static pressure was bounded by the inner shear layers of the individual jets and the nozzles plate. The positions. where maximum value of mean turbulent intensities and mean turbulent kinetic energy show, were at the same position with the merging point. The spread of jets in the merging region increases more rapidly than that of Jets in the converging and the combined region. As nozzle-to-nozzle distances were increased. it was shown that merging and combined lengths were shorter.