• 정보처리학회논문지B
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• 제14B권4호
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• pp.273-280
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• 2007

본 논문은 2D/3D 가상환경에서 실감 사운드의 실시간 합성을 위한 $EVE-Sound^{TM}$ 툴킷의 설계와 개발결과를 제시한다. $EVE-Sound^{TM}$는 사운드 효과 계산에 필요한 장면요소를 간추리는 전처리 도구와 실시간 렌더링 API들로 구성되며, 다중 모달리티의 실감 재현을 필요로 하는 가상현실, 게임 등의 각종 인터랙티브 콘텐츠에서 사용자에게 고급 그래픽 환경을 허용하면서 동시에 사운드의 실시간 재현을 가능하게 함을 목표로 하였다. 3차원 사운드 계산이 매우 복잡하기 때문에 기존의 사운드 API들이 간단한 사운드 효과와 재생을 제공하는 것과 달리, 복잡한 가상환경에서 3차원 사운드의 원리를 반영하되 그 렌더링을 실시간화하는 데 초점을 두었고, 이를 위해 새로운 장면 간략화 및 공간사운드 계산 방법이 제시되었다. 응용 사례 및 실험, 알고리즘 분석을 통해 제시된 툴킷의 활용성 및 향상된 실시간성을 확인하였다.

• 경영과정보연구
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• 제7권
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• pp.341-363
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• 2001

The purpose of industry-education cooperation field training is improving students' abilities & skills by working at industrial companies and experiencing how to apply their school knowledge to a real work for some period of time. The followings are recommendable ways of industry-education cooperation field training management to improve the students' adaptability of industrial companies with the most effectiveness (1) Prior to everything, setting the industry-education cooperation field training program to have extreme efficient and managing it with exhaustiveness & intensiveness is necessary. (2) Before sending students to industrial companies for education, the committee must make an inspection of industrial companies to decide whether they have the fine educational value. (3) To assign eve student to proper industrial companies, school authorities must survey the aptitude, desire and ability of each students and peculiarities of each industrial companies. (4) Figure out a way to increase the students' adaptability with a highest degree. (5) To help the employment of students who finished the industry-education cooperation field training with on admirable record, the committee must discuss that matter with industrial companies & students.

• 산업경영시스템학회지
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• 제25권3호
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• pp.9-15
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• 2002

Due to the inconsiderateness of human capability and inappropriate arrangement of display and control unit at the industrial site, the human error leads to a various accidents. This study was performed to investigate the visual range at the eye field and stationary field at the various angles with three different visual stimuli of alphabetic character, color slip and light-emitting diode. Three kinds of various alphabetic characters depending on length and breadth ratio (1:1, 3:5, 5:3) and three different colors (red, yellow, green) were used for the stimuli. Twenty-five subjects (11 males and 14 females) participated for this study. The results showed that female had wider visual range than male at the eye field, however no significant difference was found at the stationary field. The light-emitting diode had a widest visual range then color slip and characters are in order at the eye field and stationary field. For the character stimulus, the widest visual range was shown at length and breadth ratio of 1:1. The other ratios (3:5 and 5:3) showed no significant difference. The color of red had a widest visual range on the light-emitting diode, however, the color of yellow showed a widest visual range on the just color slip at the eye field. The result of this study would be valuable in applying to the design of visual display and the panel layout of control and displays in the industrial site.

• 한국유기농업학회지
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• 제12권4호
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• pp.437-450
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• 2004

This study was conducted with two objectives ; one was to select the suitable soybean cultivars for cultivation in paddy field and the other was to establish the environment-friendly rotational cropping system of soybean instead of rice in paddy field. In order to evaluate growth adaptation and yields, Eve soybean cultivars were cultivated in Yeoncheon, Keonggi province, with two cultivation methods such as level row and high ridge. Growth of the top plants, such as stem length, number of branches, diameter of stem, were higher in high ridge than in level row, however, the differences among the cultivars were bigger than those between the cultivation methods. Dry weight of top plant was significantly different among the cultivars during whole growth stages, however, it was higher in level row than in high ridge at V5 stage while it became higher in high ridge as growth progressed. Roots were more developed in high ridge than in level row during whole growth stages. T/R ratio in level row was higher than that in high ridge. During whole growth stages, significant differences were observed among the cultivars in growth and yields in each cultivation method and yields of Eunhakong was the highest. In results, number of nodules and T/R ratio at V5 stage, number of pods at R2 stage, and number of seeds and T/R ratio at R5 stage had highly correlated with yields, respectively.

• 공연문화연구
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• 제22호
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• pp.371-411
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• 2011

빠르게 변화하는 21세기의 문화 흐름에 있어 공연예술은 그 고유의 정체성을 확립하는 동시에 상상력과 창의력을 바탕으로 한 새로운 표현양식을 필요로 하고 있다. 현대의 변화된 테크놀로지 환경은 최첨단 기술력을 뒷받침으로, 새로운 경험에 의한 사유의 확장을 가져오고 있는 것이다. 특히 예술표현에 대한 디지털 매체의 직접적인 개입은 공연 예술 주체인 인간의 신체성을 확장시키고 있다. 디지털에 의해 가상화된 신체는 물리적 한계를 벗어나 시공간의 경계를 넘나들며, 관객으로 하여금 새로운 상호 작용의 가능성을 제시하는 것이다. 본 논문에서는 세계 최초의 전문 로봇 배우인 '에버'를 중심으로 탈신체화 된 공연예술의 표현주체와 디지털화된 움직임에 대해 살펴보려 한다. 디지털 신체라는 새로운 표현 매체의 변화에 따라 등장한 로봇 배우는 테크놀로지적 가치 뿐 만 아니라, 문화 예술적 활용 가능성에 대한 연구가 필요하기 때문이다. 이를 위하여 이론적 배경으로 '에버'의 개발과정과 기능을 조사하고, 세계 최초라는 타이틀이 지니는 역사적 중요성과 함께 인간을 대신한 배우로서의 역할을 어떠한 방식으로 수행하는지 살펴볼 것이다. 그리고 구체적 사례연구로 공연예술 분야의 판소리 극 "에버가 기가 막혀(2009)"와 어린이 연극 "로봇공주와 일곱 난쟁이(2009)"를 조사하고, 그 외 다양한 활동분야에서의 활약을 통해 배우로서의 가능성을 살펴본다. 이를 통하여 로봇 배우의 발전적인 진화 방향 탐구와 공연예술에 미칠 영향력을 예상하고, 적극적인 문화 콘텐츠화 방안 추진으로 나아가 로봇 배우의 대중화와 활성화를 통한 고부가가치를 창출할 수 있는 방안 모색을 그 목적으로 한다. 로봇 테크놀로지가 융합된 공연은 예술적 실험의 한 형태로, 인간신체와 기계인간이 어우러져 기술적 상상력을 현실화시키며 미래형 공연예술의 변화를 초래할 것이다. 본 연구를 통해 공연예술과 로봇 테크놀로지와의 만남이 현 시대가 추구하는 하나의 총체적 문화 현상으로 공연예술 활성화에 긍정적인 영향을 미치며, 나아가 다양한 영역으로의 확장을 향한 계기가 되기를 기대한다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2003년도 춘계종합학술대회
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• pp.469-472
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• 2003

정보보호 기술이 필요로 하는 분야는 위성통신, CATV, 인터넷, 전자문서 교환(EDI ; Electronic Data Exchange)을 포함한 전자상거래(electronic commerce), smart IC card, EFT(Electronic Funds Transfer) 등 거의 모든 정보통신 산업 관련 분야를 망라하고 있다. 특히 이러한 정보시스템의 경우 암호의 누출 및 hacking 문제는 사회 및 국가 안보분야에도 큰 영향을 미치게 된다. 따라서 본 논문에서는 최근에 무선통신 환경에 적합한 타원형 곡선 알고리즘의 유한체에서의 polynomial과 normal 기저에 대한 연산 결과를 분석하였다.

• 설비공학논문집
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• 제13권4호
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• pp.279-288
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• 2001

This paper is to derive energy retrofit strategies through energy audit and analysis for a selected small-to-medium office building located in Seoul, Korea,. To activate ESCO business in Korea, our final goal is to develope a simple and adequate energy retrofit procedure through computer simulation. Calibration process was fairly successful eve without the aid of tough field measurement. In terms of annual energy consumption, the percent difference between the predicted and the monitored values were within a reasonable tolerance of $\pm10$%. Based on the calibrated baseline model and the systematic investigation of target building, retrofit measures were suggested with two categories such as architectural side and equipment side. Both selected parametric and interactive retrofit measure simulations resulted in various energy saving quantities and cost, thus the priority among the measures were made. If we were to select the more realistic and reasonable retrofit measure in future, economic estimate were should be practiced with the life cycle cost analysis.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제15권2호
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• pp.13-22
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• 2009

Healthcare facilities design in Korea actually has begun from the late 1960s and early 70s and accomplished unprecedented growth qualitatively and quantitatively. In the 1970s and the 80s, domestic healthcare design was greatly influenced by the Japanese. In the 1990s, under the competitive healthcare-market environment, great concerns were dominated to american healthcare facilities than the Japanese which have comparatively monotonous architectural forms. In the meantime, domestic healthcare architecture firms have continuously learned about design know-hows of the US, Japan and eve European countries. Now I would like to evaluate the they are stepping onto in level that can equally compete with the advanced foreign architectural design companies. This study, investigating and consolidating architects' ideas and contents which experienced in design processes of real projects in current healthcare field, is purposed to find characteristics in design work of healthcare facilities and share the experiences. Method of research executed questionnaires to 22 special designers who design each 20 healthcare facilities. Questionnaire attained form July to October, 2008. Hereafter, it is going to present adjusting design process for healthcare facilities by analyzing various debris that is made in the process with design results that is made through design process.

• 한국미생물·생명공학회지
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• 제24권5호
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• pp.546-552
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• 1996

The applicability of chitosan, a biodegradable natural polymer, as the coating material to prevent the dispersal of the spores of the apple white rot agent Botryosphaeria dothidea, was investigated. The physical properties of mixed chitosan/polyvinyl alcohol(PVA) film showed the increased physical properties for film formation, such as tensil strength, elongation, and viscosity, compared to either chitosan or PVA film. The FT-IR spectra of chitosan/PVA film indicated that the film was formed by simple blending not by any new synthetic bond. The chitosan and chitosan/PVA film showed effective antifungal activity on B. dothidea. The formed films were well decomposed by ASTM strains used for biodegradability test, on the other hand, the PVA film could not be decomposed by above standard strains. The field test at apple orchard showed that the dispersal of B. dothidea spores could be effectively reduced by coated film, especially by chitosan/PVA film. The spore dispersal was reduced upto 97.0% by 1.0% chitosan/5.0% PVA film during 4 months.

• 천문학회보
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• 제46권1호
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• pp.51.2-51.2
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• 2021

Nuclear rings are sites of intense star formation at the center of barred spiral galaxies. A straightforward but unanswered question is what controls star formation rate (SFR) in nuclear rings. To understand how the ring SFR is related to mass inflow rate, gas content, and background gravitational field, we run a series of semi-global hydrodynamic simulations of nuclear rings, adopting the TIGRESS framework to handle radiative heating and cooling as well as star formation and supernova feedback. We find: 1) when the mass inflow rate is constant, star formation proceeds in a remarkably steady fashion, without showing any burst-quench behavior suggested in the literature; 2) the steady state SFR has a simple linear relationship with the inflow rate rather than the ring gas mass; 3) the midplane pressure balances the weight of the overlying gas and the SFR surface density is linearly correlated with the midplane pressure, consistent with the self-regulated star formation theory. We suggest that the ring SFR is controlled by the mass inflow rate in the first place, while the gas mass adjusts to the resulting feedback in the course of achieving the vertical dynamical equilibrium.