드로잉큐브 : 테이블탑 인터페이스로 구현되는 상호작용적 디지털드로잉 연구

김별이(Kim Byulyi),조경문(Cho Kyoungmoon),박승호(Park Seungho) 한국디지털디자인학회 2008 디지털디자인학연구 Vol.8 No.2

드로잉큐브는 상호작용적 디지털 드로잉을 위한 탠저블 인터페이스 기반의 미디어아트 작품이다. 이는 디지털 기술이 인간에게 제공하는 다양한 가능성에도 불구하고 천편일률적인 현재의 인터페이스 방식을 극복하자고하는 시도이며 이를 통해 관람자가 적극적으로 예술작품에 개입하는 것을 가능하게 한다. 드로잉큐브는 상호작용적 드로잉이 가능한 12개의 큐브(Cube)와 테이블탑 (Tabletop)형태의 디스플레이로 구성되어 있다. 관람자는 테이블 위의 큐브를 자유롭게 배치하면서 각기 다른 드로잉 작품을 직접 만들 수 있다. 실시간으로 변화하는 디지털 드로잉은 생성 증식 소멸의 과정을 반복하면서 관람자의 행동에 대응하는 시각적 결과물을 출력한다. 테이블 하단에 설치된 적외선 카메라 적외선 조명을 통해 큐브의 위치변화를 추적하고 큐브의 하단에는 태그 (Tag)를 부착하여 큐브별 ID 각도(angle) 좌표 (position)를 기록한다. 실시간 상호작용에 의한 디지털 드로잉의 비주얼화에는 프로세싱 (processing) 언어를 사용하였다. Drawing Cube is a media art work with a tangible interface which is designed for interactive digital drawings. We created Drawing Cube because we understood the limits of current interface that are much too monotonous compared to the diversity of digital contents offered to by digital technology of today. And we want to enable the audiences to actively intervene with art works which previous have been primarily oriented around its creator. Drawing Cube is consisted of 12 Cubes with individualized drawing functions for interactive digital drawings and a tabletop display. The audiences can create different drawing works by giving variations in the arrangement of each cubes on the table. The digital drawing created here continuously repeats the cycle of creation multiplication and extinction. Digital Cube recognizes the changed of each cubes created by audiences through the infrared camera and the infrared LED light on the bottom part of the table and records ID angle position of each cubes by recognizing the separate tags attached on the bottom of each cubes. We also incorporated the processing programming into expression of digital drawings.

인명안전 관점에서 선박 화재 시 급·배기조건에 따른 배연성능 예측평가

김별,황광일,Kim, Byeol,Hwang, Kwang-Il 해양환경안전학회 2016 海洋環境安全學會誌 Vol.22 No.7

선박의 기계식 환기시스템은 화재발생 시 연기의 생성과 확산 특성에 영향을 미치고, 이는 피난자의 피난경로 상의 가시도를 방해함으로써 피난자의 연기로 인한 피해를 증가시킬 위험성이 크다. 이에 이 연구에서는 선박 거주구역에서 화재발생 시 기계식 급 배기시스템이 연기확산에 미치는 영향과 위험성에 대하여 FDS를 활용하여 평가하고 화재 시 급 배기시스템을 효율적으로 사용할 수 있는 방안을 제안하였다. 연구결과 화재가 발생한 장소에 급 배기시스템이 함께 작동되고 있는 경우에는 현재 권장되고 있는 급 배기시스템을 멈추는 방법보다 작동을 유지하는 것이 효과적이고, 배기시스템만 작동되는 곳에서 화재가 발생한 경우에는 화재가 발생한 구역 이외의 구역에서 급기시스템을 함께 작동시키는 것이 피난시간을 확보하는데 효과적인 것으로 예측되었다. 그러나 화재가 발생한 곳에 급기시스템만 있는 경우에는 급기시스템이 연기확산을 가속시키기 때문에 급기방식을 중단시켜 연기의 확산을 최대한 억제할 필요가 있음을 확인하였다. When a fire occurs on a ship that has mechanical ventilation facilities, the air supply and exhaust systems directly effect smoke diffusion. And there is a high possibility that occupant's visibility will be harmed because of smoke. In this study, the effects and risks of air supply and exhaust systems with regard to smoke diffusion given a shipboard fire analyzed with a Fire Dynamic Simulator(FDS). Suggested measures are also provided for using air supply and exhaust systems more efficiently. The results showed that, when air supply and exhaust systems were both working at the time of a fire, rather than stopping these systems as previously encouraged, continuing to operate both was an effective measure to gain evacuation time. When a fire occurred and the exhaust system was operating, also starting the air supply system near the origin of the fire was another effective approach to gain evacuation time. However, when only the air supply system was operating and a fire occurred, the air supply system accelerated smoke diffusion, so it was necessary to stop the air supply system to detect smoke diffusion as much as possible.

대학 주변 원룸형 다가구주택의 인동간격과 프라이버시 및 방범 문제 인식

김별이(Byeol-I Kim),신인애(In-Ae Shin),이현정(Hyun-Jeong Lee),김자옥(Ja-Ok Kim) 한국생활과학회 2014 한국생활과학회 학술대회 Vol.2014 No.05

온습도지수를 활용한 젖소의 기후변화 영향변동 예측

김별,임정수,조성백,황옥화,양승학,Kim, Byul,Lim, Joung-Soo,Cho, Sung-Back,Hwang, Ok-Hwa,Yang, Seung-Hak 한국축산환경학회 2014 한국축산시설환경학회지 Vol.20 No.2

The climate of the earth is expected to change rapidly and continuously. Despite climate change is expected to impact on productivity of crop and livestock, a study for adaptation and impact of livestock to global warming is not enough. This study was performed to develop a method to evaluate the effects of heat stress on dairy cattle. Feedlot environment and health status of livestock were measured through an infrared thermography camera and a temperature-humidity sensor. Environmental factors such as temperature and humidity were measured to calculate the Temperature humidity index (THI). The change of the milk yield was similar to THI data pattern, suggesting that THI might play an important role to predict the effect of climate change on dairy cattle. THI data would be useful to predict long-term climate change effects on dairy cattle with RCP8.5 scenario.

뇌성마비 환자의 지연맹출을 동반한 다발성 과백악질증

김별이라(Byurira Kim),선예지(Yeji Sun),송제선(Je Seon Song),이제호(Jae-ho Lee) Asia association of Disability and Oral health 2017 대한장애인치과학회지 Vol.13 No.2

Hypercementosis is an excessive deposition of secondary cementum on the root of a tooth. It is mostly presented as a solitary lesion or in rare cases as a generalized type, but which is seldom recognized; typically it is discovered during regular dental X-ray. Increased thickness of cementum is not uncommon but generalized hypercementosis on impacted permanent teeth which may cause delayed eruption is rarely reported. This case report discusses a patient with cerebral palsy, epilepsy and mental retardation that presents multiple hypercementosis with delayed eruption. On intraoral examination, multiple retained primary molar teeth were found. As there was no any further symptoms, regular dental checkup had been done for several years. In 2015, a surgical opening was performed in the second molar area, but there was no specific change. Panoramic view showed multiple impacted permanent teeth with increased thickness of roots due to excessive deposition of cementum. Hypercementosis was also observed in the root of the erupted tooth. Several laboratory test results including hormone, urine, complete blood count test were reviewed. The patient was also diagnosed with subclinical hypothyroidism, impaired fasting glucose and had been taken valproic acid(Orfil<SUP>®</SUP>) for 10 years. However, none of them clearly explained generalized hypercementosis or delayed eruption. The patient is now 24 years old and regular dental checkups and radiographs are taken to confirm that there is no change in the lesion.

고온 환경이 젖소의 생산성 및 축사환경에 미치는 영향 연구

김별,임정수,조성백,황옥화,양승학,Kim, Byul,Lim, Joung-Soo,Cho, Sung-Back,Hwang, Ok-Hwa,Yang, Seung-Hak 한국축산환경학회 2014 한국축산시설환경학회지 Vol.20 No.2

Environmental heat stress by global warming has a severe effect on the productivity of livestock and, in particular, on that of dairy cattle. Heat stress during high temperature environment directly and indirectly affects milk yield, milk quality and physiological response. This study was conducted to investigate the effects of heat stress on productivity and physiological responses of livestock. Temperature-humidity data logger were established inside the feedlot for measuring real time changes in the feedlot environment. Milk was collected every day for analysing the productivity of dairy cattle. Blood sample and respiration of dairy cattle were collected once in a week for investigating the physiological response factors. Blood component concentration associated with lipolysis metabolism and milk production showed change during tropical night period. Temperature humidity index (THI) of a specific location inside the feedlot showed continuously high levels.

제약산업에서의 신제품 개발이 기업가치에 미치는 영향

김별아(Byu La Kim),이종국(Jong Kuk Lee),송상영(Sang Young Song) 한국경영학회 2014 經營學硏究 Vol.43 No.2

In today’s competitive market environment, new product development has been a major source of a firm’s competitive advantage and the resulting firm value. However, researchers have previously shown that there is high level of risk involved with developing and introducing new products into the market and more than eighty percent of new products fail. Considering the greater risks associated with more innovative new products than those with less innovative ones, we distinguish between radical and incremental new products and examine their impact on firm value. We further investigate the moderating role of firm reputation on the relationship between the firm value and the radical and incremental new products. We collected data on the new product developments, firm reputation, and financial information in the pharmaceutical industries between 1997 and 2010 from various secondary data sources. Our analysis shows that radical and incremental new products have differential effects on firm value, and firm reputation plays a significant role to the effects of new products. A firm with higher reputation benefits more when they introduce radical new products but suffer when they introduce incremental new products. The findings of this study provide important theoretical and managerial implications. First, while prior research primarily focused on new products in general, this study shows that the effect of new products on firm value is dependent on the types of new products. While radical new products improve firm value, incremental new products have little impact on firm value. Second, this study offers new insights regarding the role of firm reputation in introducing new products. Depending on the level of reputation, a firm needs to foucs on different types of new products. In particular, a firm with high reputation needs to introduce more radical new products rather than leverage its reputation with incremental new products. Third, while prior research has extensively examined firm characteristics such as firm size, capability, or experience as determinats of innovation outcomes, this study extends our focus to more social factors, such as firm reputation. That is, firm reputation resulting from its past activities can magnify or limit the outcomes resulting from its innovation activities in the future. Finally, these findings provide specific suggestions to enhance firm value through new products. This study offers to distinguish between radical and incremental new products and at the same time to look at the level of firm reputation. This study guides firms to align types of new products with their level of reputation.

구강세균에 대한 구름버섯 추출물의 항균효과

김별이 ( Byeol-lee Kim ),임근옥 ( Kun-ok Lim ),한소라 ( So-ra Han ),김기화 ( Ki-hwa Kim ),오태진 ( Tae-jin Oh ) 한국치위생학회(구 한국치위생교육학회) 2017 한국치위생학회지 Vol.17 No.1

Objectives: Coriolus versicolor is an edible mushroom with physiological activities that has been used in traditional medicine. The aim of this study was to investigate the antimicrobial activity of extracts obtained from Coriolus versicolor against oral pathogens. Methods: The antimicrobial activities of various extracts of Coriolus versicolor were examined by disc diffusion assay, and minimum inhibitory concentration (MIC) of these extracts were also was determined by broth dilution method. The growth inhibition effect of extracts was measured at 600 nm for 12 hrs against Streptococcus ratti, Streptococcus criceti, Aggregati-bacter actinomycetemcomitans, Actinomyces viscosus, and Actinomyces israelii. Results: Coriolus versicolor extracts showed antimicrobial activities against all nine oral pathogens through disc diffusion assay. The ethanol extract and ethyl acetate extract differed significantly compared with acetone extract against Streptococcus ratti, Streptococcus criceti, Actinomyces viscosus, Actinomyces israelii and Aggregatibacter actinomycetemcomitans (p< 0.05). These extracts exhibited MIC ranges of 2.63 to >10.50 mg/ml against the tested bacteria. The ethanol extract from Coriolus versicolor showed lower MIC values of 2.63 to 5.25 mg/ml. According to the obtained growth curve, the extracts of Coriolus versicolor were more effective against Actinomyces viscosus. Conclusions: The acetone, ethanol, and ethyl acetate extracts from Coriolus versicolor showed antimicrobial activities against Streptococcus mutans, Staphylococcus aureus, Streptococcus sanguinis, Streptococcus sobrinus, Streptococcus ratti, Streptococcus criceti, Aggregatibacter actinomycetemcomitans, Actinomyces viscosus, and Actinomyces israeli.i Therefore, they could be considered as natural oral antimicrobial agents against oral pathogens.

지진의 지역경제 손실 추정 - 공간연산일반균형의 응용 -

김의준 ( Kim¸ Euijune ),이호준 ( Hojune Lee ),진동영 ( Dongyeong Jin ),김별아 ( Byula Kim ),지앙민 ( Min Jiang ),윤동근 ( Yoon¸ Dong Keun ) 전남대학교 지역개발연구소 2020 지역개발연구 Vol.52 No.2

우리나라에 지진의 발생이 증가함에 따라서 지진으로 인한 피해 및 예방에 대한 관심이 증대되고 있다. 본 연구에서는 공간연산일반균형모형을 개발하여 지역 지진 발생이 지역별로 얼마나 경제적 손실을 가져오는지를 분석하였다. 여기서 손실이란 지진발생 후 생산시설 파손이 물류비용과 재화 가격을 상승시켜 생산과 소비과정에서 감소한 부가가치 변화량으로 정의하였다. 공간연산일반균형모형은 기초자치단체 단위의 지역 생산자-소비자 모형으로서 지역 생산자의 이윤 극대화와 소비자의 효용 극대화 과정을 통해서 재화 생산량과 가격, 고용과 임금, 자본 수요와 수익률 등의 균형 값을 내생적으로 도출할 수 있다. 공간 연산일반균형모형을 적용하기 위한 기초자료로 광역시도 지역산업연관표와 국민계정자료를 바탕으로 추산된 228개 기초자치단체 단위의 확장된 지역산업연관표를 이용하였다. 의태분석을 위한 외생적 충격 대상지역은 강한 지진이 발생하였던 경주시, 익산시, 여수시, 무주군이며 해당 지역과 인접지역의 생산시설이 2% 파손한 것을 가정하였다. 의태분석 결과, 지진으로 인한 특정 지역의 생산시설 감소는 지진의 직접피해지역에 가장 큰 부가가치 감소를 유발하였을 뿐만 아니라 전국적으로도 부가가치를 감소시켰다. 전국적인 부가가치 감소율을 시나리오별로 비교하면, 경주시, 익산시, 여수시, 무주군 순서로 지진의 경제적 손실이 큰 것으로 나타났다. 이 연구는 지진과 같은 자연재난이 발생하였을 때 재난으로 인해 예상되는 피해를 지역별로 분석하여 지역별 방재 예산 배분 및 활용의 효율성을 제고하는데 기여할 수 있고, 궁극적으로 방재 예산투자의 우선순위를 선정하는데 도움을 줄 수 있을 것이다. As the outbreak of earthquakes increases in South Korea, attention to damage and prevention from earthquakes is increasing. This paper estimates spatial impacts of regional earthquakes on regional economic losses, developing a Spatial Computational General Equilibrium (SCGE) model. The loss is measured in terms of reductions in gross regional products through cost inflations of logistics and production from the earthquake. The SCGE model is composed of regional modules of regional productions and consumptions at city and county level, and the optimal solution set of quantities and prices of commodity and factor input markets is determined by maximization of producer’s profits and consumer’s utility. The expanded 228 cities and counties multi-regional input-ouput table is used to apply SCGE model. In the simulation, the shocked regions caused by the earthquakes are Kyungjoo, Iksan, Yeosu, Muju and it is assumed that production facilities in shocked regions and adjacent regions are loss by 2%. As the result of the simulation, the decrease in production facilities in the shocked region due to the earthquake not only causes the largest decrease in value added of shocked and adjacent regions but also reduces the value added nationwide. In aspect of national GDP, the earthquake in Kyungjoo has the largest effect on the economic losses, which is followed by Iksan, Yeosu and Muju. By analyzing the expected damage from the natural disaster by region, this paper is expected to contribute to improve an efficiency of budget allocation for national safety and natural disasters and to set investment priorities of government projects.

시청광장에서의 시민간 감성소통을 위한 상호작용적 조형물의 제안

김동미(Kim, Dongmi),김별이(Kim, Byulyi),박선자(Park, Sunja),장소효(Zhang, Xiaoxiao),박승호(Park, Seungho) 한국디지털디자인협의회 2006 (사)한국디지털디자인협의회 conference Vol.2006 No.5