제너러티브 아트(Generative Art)의 시각적 속성이 반영된 패션디자인 분석

김동옥,최정화,Kim, Dong Ok,Choi, Jung Hwa 한국의류학회 2017 한국의류학회지 Vol.41 No.5

Generative Art (also called as the art of the algorithm) creates unexpected results, moving autonomously according to rules or algorithms. The evolution of digital media in art, which tries to seek novelty, increases the possibility of new artistic fields; subsequently, this study establishes the basis for new design approaches by analyzing visual cases of Generative Art that have emerged since the 20th century and characteristics expressed on fashion. For the methodology, the study analyzes fashion designs that have emerged since 2000, based on theoretical research that includes literature and research papers relating to Generative Art. According to the study, expression characteristics shown in fashion, based on visual properties of Generative Art, are as follows. First, abstract randomness is expressed with unexpected coincidental forms using movements of a creator and properties of materials as variables in accordance to rules or algorithms. Second, endlessly repeated pattern imitation expresses an emergent shape by endless repetition created by a modular system using rules or 3D printing using a computer algorithm. Third, the systematic variability expresses constantly changing images with a combination of system and digital media by a wearing method. It is expected that design by algorithm becomes a significant method in producing other creative ideas and expressions in modern fashion.

ICN 서울총회 기념학술대회 - 전문간호사제도 개발전략

김동옥,Kim, Dong-Ok 대한간호협회 1997 대한간호 Vol.35 No.5

경구기관삽관법과 경비기관삽관법의 심혈관계 영향에 대한 비교

김동옥,최영규,Kim, Dong-Ok,Choi, Young-Kyoo 대한치과마취과학회 2001 Journal of Dental Anesthesia and Pain Medicine Vol.1 No.1

Background: This prospective study was designed to compare the cardiovascular response to endotracheal insertion of either an orotracheal tube or a nasotracheal tube Methods: 120 ASA physical status I and II surgical patients requiring general anesthesia and tracheal intubation were studied and assigned to two groups: orotracheal intubation group (n = 60) and nasotracheal intubation group (n = 60). Patients were premedicated with midazolam 0.05 mg/kg and glycopyrrolate 0.005 mg/kg intramuscularly and anesthesia was induced with thiopental sodium 5 mg/kg and succinylcholine 0.1 mg/kg intravenously. Systolic blood pressure (SBP), diastolic blood pressure (DBP). mean arterial pressure (MAP) and heart rate (HR) were assessed noninvasively before induction of anesthesia and immediately after intubation, 1 min, 2 min, 3 min, and 5 min after intubation. Results: Cardiovascular responses such as SBP, DBP, MAP and HR were similar for both techniques and no significant differences between two groups were observed until 5 min after intubation. Conclusions: In healthy ASA I and II patients with normal blood pressure, induction doses of thiopental sodium 5 mg/kg and succinylcholine 0.1 mg/kg didn't attenuated the cardiovascular response to laryngoscopy and tracheal intubation. Insertion of an endotracheal tube may be the most invasive stimulus during intubation procedures. (JKDSA 2001; 1: 10-15)

기본 생명구조술

김동옥,Kim, Dong-Ok 대한치과마취과학회 2002 Journal of Dental Anesthesia and Pain Medicine Vol.2 No.2

강주물 압탕 방정식의 비교

김동옥,김기영,Kim, Dong-Ok,Kim, Gi-Yeong 한국기계연구원 1984 기계연구원소보 Vol.12 No.-

표준연계프레임워크 기반 정보연계모델에 관한 연구

김동옥,최종근,정회경,Kim, Dong-Ok,Choi, Jong-Kun,Jung, Hoe-Kyung 한국정보통신학회 2014 한국정보통신학회논문지 Vol.18 No.4

The scale of national research and development work is expanded gradually and grows bigger, so necessity of building system rises to guarantee more objective and fairer selection of business and clarity of budget administration according to active progress of convergence between study territories. In the study, standard frame work is suggested for information connection between dissimilarities, and based on this work; the study considers the system for information connection of digital budget accounting system handling budget and accounting of national finance and national science technology knowledge information system that is in charge of result administration and result evaluation of national research and development work, so suggests application plan of standard frame work connected with information solving current state and problems for connection. 국가 연구개발 사업은 그 규모가 점차 확대되고, 대형화되어가고 있어 연구 영역간의 융복합화 등이 활발하게 진행됨에 따라, 보다 객관적이고 공정한 사업선정과 예산관리의 투명성이 담보될 수 있는 시스템구축의 필요성이 대두되고 있다. 본 연구에서는 이기종간의 정보연계를 위한 표준 프레임워크를 제안하고, 이를 기반으로 국가 재정의 예산과 회계를 총괄하는 디지털예산회계시스템과 국가 연구개발 성과관리 및 성과평가를 담당하는 국가과학기술지식정보시스템의 정보연계를 위한 시스템을 고찰하여 연계를 위한 현황과 문제점을 해결하는 표준 정보연계 프레임워크의 활용방안을 제시하고자 한다.

Performance of Prioritized Service Discipline Based on Hop Count for Optical Burst Switched Networks

김동옥,Kim, Dong-Ok Korea Institute of Information and Telecommunicati 2007 정보통신설비학회논문지 Vol.6 No.3

In this paper, we propose a new prioritized Optical Burst Switching (OBS) protocol based on a hop count, which can provide efficient utilization in optical networks. Under several legacy schemes, a switch drops the burst with the shortest time regardless of its traversed hop count. As a result, a dropped burst that have been traversed many hops might cause increased bandwidth waste compared to one that has traversed a few hops. To improve this problem, we propose the Just Enough Time (JET) with a hop counting scheme which can reduce the wasted bandwidth by prioritizing the burst traversed many hops over others. From the simulation result, it is preyed, we show that the proposed scheme has advantages against legacy schemes in terms of the burst blocking probability and the link utilization.

무선통신 시스템의 채널 환경에서 채널 등화에 관한 연구

김동옥,Kim, Dong-Ok 한국정보통신설비학회 2007 정보통신설비학회논문지 Vol.7 No.1

차세대 이동통신 시스템은 고속의 멀티미디어 데이터의 신뢰성있는 전송을 요구하고 다양한 전파환경에서 신뢰성 있는 음성, 데이터, 영상서비스 등의 다양한 서비스를 제공한다. 하지만 광대역 무선접속을 지원하는 다중접속기술은 CDMA(Direct Sequence Code Division Multiple Access) 시스템에서 시스템 성능을 저하시키는 심벌간 간섭(ISI) 혹은 다중접속간섭(MAI) 신호를 발생시킨다. 이러한 간섭 신호를 개선하기 위해 적응 블라인드 등화 방식을 사용하는데 적응 블라인드 등화 방식 중에서도 가장 많이 이용하는 Constant Modulus Algorithm(CMA)을 적절한 초기화 없이 사용하면 ill-convergence 현상이 나타난다. 본 논문에서는 채널의 효율을 높이기 위한 등화 방식으로 기존의 CMA 알고리듬을 이용한 새로운 블라인드 등화 방식을 제안하고, 이를 이동통신 시스템의 Time Varying Fading 채널환경에서 컴퓨터 모의실험 및 성능분석을 하였다. 따라서 Kalman 필터와 CMA를 결합한 새로운 등화 기법은 자승 오차와 Eye-Pattern의 성능 비교를 통해 기존의 방법 보다 우수함을 확인할 수 있었다. The third generation mobile communications system requiring the reliable multimedia data transmission has provided with the reliable voice, data and video services over the variable propagation environment. However the broadband wireless multiple access technologies cause Inter Symbol Interference(ISI) or Multiple Access Interference(MAI) to degrade the performance of CDMA(Code Division Multiple Access) system. Constant Modulus Algorithm which is frequently used as the adaptive blind equalizers to remove the interfering signal has ill-convergence phenomenon without proper initialization. In this paper, new blind equalization method based on conventional CMA is proposed to improve the channel efficiency, and through computer simulation this is tested over the time varying fading environment of mobile communication system. consequently, new blind equalization method into concatenated Kalman filter with CMA is verified better than conventional CMA through adopting minimum mean square errors and eye- pattern obtained from algorithm are compared.

홉 기반의 우선처리를 고려한 광버스트 무선 교환방식의 성능분석

김동옥,윤홍,Kim, Dong-Ok,Yoon, Hong 한국정보통신학회 2005 한국정보통신학회논문지 Vol.9 No.1

In this paper, we propose a new prioritized Optical Burst Switching (OBS) protocol based on a hop count, which can provide an efficient utilization in optical Wireless networks. Under several legacy schemes, a switch drops the burst with a shorter time among ones regardless of its traversed hop count. As a result, the dropped burst that have been traversed more hops might cause to waste bandwidth than the one traversed a few hops. Noting that this problem, we propose the Just Enough Time(JET) with a hop count scheme which can reduce the wasted bandwidth by prioritizing the burst traversed more hops over others. From the simulation result, we show that the proposed scheme is advantageous over the legacy schemes in terms of the burst blocking probability and the link utilization. 본 논문에서는 광버스트 무선교환망에서 버스트가 거쳐 온 홉 수에 따른 우선순위 처리기능을 제공하는 대역예약할당방식을 제안하고 향상된 성능을 분석한다. 기존의 대역예약방식은 버스트간 충돌이 발생되면 홉 수를 고려하지 않고, 상대적으로 짧은 옵셋타임을 가지는 버스트를 폐기시킨다. 결과적으로 많은 홉을 경유한 버스트가 폐기된다면 해당 버스트가 경유한 스위치들에 예약된 대역들이 모두 낭비되기 때문에 적은 홉을 경유한 버스트가 폐기되는 경우보다 망의 전체적인 효율성이 떨어지는 문제가 발생된다. 이러한 문제를 해결하기 위해서 본 논문에서는 많은 홉 수를 경유한 버스트에 대해 우선순위를 부여하는 Just Enough Time(JET) with hop count 방식을 사용하여 가급적 대역낭비를 감소시킨다. 제안된 방식에 대한 모의실험을 통해서 기존의 대역예약방식과 제안된 JET with hop count 방식의 블로킹확률과 링크효율을 비교 분석하여 제안된 방식의 성능이 우수함을 보였다.

다양한 금속 기판재료에 따른 그래핀의 유도결합 플라즈마 화학기상 성장 특성

김동옥,트란남충,김의태,Kim, Dong-Ok,Trung, Tran Nam,Kim, Eui-Tae 한국재료학회 2014 한국재료학회지 Vol.24 No.12

We report the chemical vapor deposition growth characteristics of graphene on various catalytic metal substrates such as Ni, Fe, Ag, Au, and Pt. 50-nm-thick metal films were deposited on $SiO_2/Si$ substrates using dc magnetron sputtering. Graphene was synthesized on the metal/$SiO_2$/Si substrates with $CH_4$ gas (1 SCCM) diluted in mixed gases of 10% $H_2$ and 90 % Ar (99 SCCM) using inductively-coupled plasma chemical vapor deposition (ICP-CVD). The highest quality of graphene film was achieved on Ni and Fe substrates at $900^{\circ}C$ and 500 W of ICP power. Ni substrate seemed to be the best catalytic material among the tested materials for graphene growth because it required the lowest growth temperature ($600^{\circ}C$) as well as showing a low ICP power of 200W. Graphene films were successfully grown on Ag, Au, and Pt substrates as well. Graphene was formed on Pt substrate within 2 sec, while graphene film was achieved on Ni substrate over a period of 5 min of growth. These results can be understood as showing the direct CVD growth of graphene with a highly efficient catalytic reaction on the Pt surface.