• 디지털산업정보학회논문지
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• 제8권4호
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• pp.63-71
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• 2012

Recently, because most of buildings in the city become bigger and higher, so various convenient facilities and high-tech management skills are required to prevent potential disasters. Especially, because fires in huge buildings can cause serious damage, technologies and methods that help people quickly and safely to escape from the building is very important to extinguish the fire in initial state and to minimize the damage. This paper suggests a context-aware service system that can provide optimal escape routes to tenants with their smart-phones. The proposed system collects contexts with real time through USN(Ubiquitous Sensor Network) and provides an optimum escape route based on the collected contexts through service users' smart phones. In addition, The system provides not only safe routes from the fire but also valuable information for rescue operations with real time.

• Journal of Mechanical Science and Technology
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• 제18권5호
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• pp.820-829
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• 2004

The In-Containment Refueling Water Storage Tank (IRWST), one of the design improvements applied to the APR -1400, has a function to condense the high enthalpy fluid discharged from the Reactor Coolant System (RCS). The condensation of discharged fluid by the tank water drives the tank temperature high and causes oscillatory condensation. Also if the tank cooling water temperature approaches the saturated state, the steam bubble may escape from the water uncondensed. These oscillatory condensation and bubble escape would burden the undue load to the tank structure, pressurize the tank, and degrade its intended function. For these reasons simple analytical modeling and experimental works were performed in order to predict exact tank temperature distribution and to find the effective cooling method to keep the tank temperature below the bubble escape limit (93.3$^{\circ}C$), which was experimentally proven by other researchers. Both the analytical model and experimental results show that the temperature distributions are horizontally stratified. Particularly, the hot liquid produced by the condensation around the sparger holes goes up straight like a thermal plume. Also, the momentum of the discharged fluid is not so strong to interrupt this horizontal thermal stratification significantly. Therefore the layout and shape of sparger is not so important as long as the location of the sparger hole is sufficiently close to the bottom of the tank. Finally, for the effective tank cooling it is recommended that the locations of the discharge and intake lines of the cooling system be cautiously selected considering the temperature distribution, the water level change, and the cooling effectiveness.

• 한국의류학회지
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• 제45권6호
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• pp.1017-1034
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• 2021

The "Escape the corset" movement raises the question of gender norms in dressing by rejecting the socially established ideal women's clothing. The context is similar to Rational dress of the 19th century, which claimed that women could also wear pants. Cartoons and webtoons reflect the characteristics of each era, including images and stories, and express social problems of the time implicitly and satirically. Thus, this study examined women's clothes expressed in cartoons and webtoons and analyzed their characteristics. The results are as follows. As an expression to the recipient of both clothes, women tried to form their identity through a rational attitude and break away from their embellishment, which was regarded as oppression from society. On the other hand, as an expression of the attitude of others towards the recipient of both clothes, people argued the changed appearance of women as a non-ideal form which should be corrected. This study is significant for proving that the dressing contains gender norms of the time beyond the trends.

• 대한가정학회지
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• 제49권3호
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• pp.1-10
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• 2011

This paper reports on a study of the morphological design trends and characteristics of vests in contemporary fashion for women. A review of the relevant literature was conducted, and visual images found in various collections displayed in local and foreign papers and on internet web sites over the period 2001 to 2009 were analysed. The analysis of the vest designs showed that 78% had no collar, 41.8% were waist-length, 70.5% used general fabrics of various colors and patterns, 98.2% had a single fastening system, 69.8% used buttons for fastening, and 67.4% were intended to be worn as outwear over inner wear items such as a shirt or blouse. The trends in vest design were characterized by the expression of an androgynous image, by creative diversity and by an escape from traditional forms.

• 한국위성정보통신학회논문지
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• 제12권1호
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• pp.101-106
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• 2017

In this paper, we present Emergency exit signs are installed to provide escape routes or ways in buildings like shopping malls, hospitals, industry, and government complex, etc. and various other places for safety purpose to aid people to escape easily during emergency situations. In case of an emergency situation like smoke, fire, bad lightings and crowded stamped condition at emergency situations, it's difficult for people to recognize the emergency exit signs and emergency doors to exit from the emergency building areas. This paper propose an automatic emergency exit sing recognition to find exit direction using a smart device. The proposed approach aims to develop an computer vision based smart phone application to detect emergency exit signs using the smart device camera and guide the direction to escape in the visible and audible output format. In this research, a CAMShift object tracking approach is used to detect the emergency exit sign and the direction information extracted using template matching method. The direction information of the exit sign is stored in a text format and then using text-to-speech the text synthesized to audible acoustic signal. The synthesized acoustic signal render on smart device speaker as an escape guide information to the user. This research result is analyzed and concluded from the views of visual elements selecting, EXIT appearance design and EXIT's placement in the building, which is very valuable and can be commonly referred in wayfinder system.

• 한국항공우주학회지
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• 제46권11호
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• pp.952-960
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• 2018

지구관측용 인공위성에서 고기동성이 많이 요구되고 있다. 고기동성을 만족시키기 위해 고토크 구동기가 인공위성 설계에서 필수적이다. 본 연구에서 고기동 소형위성 설계를 위해 한국항공우주연구원에서 연구되고 있는 5Nm급 소형 제어모멘트자이로(CMG, Control Moment Gyro) 개발 결과를 소개하였다. 구동로직 활용을 위해, 잘 알려진 Elliptic internal singularity를 성공적으로 회피하는 등으로 Singular Direction Avoidance (SDA) 방법에서 향상된 Designated Direction Escape (DDE) CMG 클러스터 구동로직에 대한 간단한 성능 검증과 상세한 로직 방법이 제시되었고, CMG가 피라미드 형태로 장착되었을 경우와 지붕 형태로 장착되었을 경우에 대해 5Nm급 소형 CMG가 고기동 소형위성 설계에 적절한지를 검증하기 위한 시뮬레이션이 수행되었다. 시뮬레이션 결과를 바탕으로 CMG 개발시 고려해야 할 의미있고 중요한 사항들을 제시하였다.

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2008년도 추계학술논문발표회 논문집
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• pp.340-347
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• 2008

Recently the consideration for occupant's security has been raised as very important design element from the fire by building's large sized, higher storied, and its compounded. But the domestic laws regulated the predicative laws according to the technical standard which has no difference from the past domestic evacuation regulation. Therefore, regulation of escape code and developing technology for Korean conditions are needed to reduce victims during disaster by protecting occupant and guiding people to safe places.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2014년도 추계학술대회
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• pp.557-558
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• 2014

ICT 기술발전으로 웨어러블 디바이스(wearable device)와 증강현실(augmented reality: AR) 및 가상현실(virtual reality: VR)등은 차세대 게임 산업에 새로운 재미와 가치를 부여할 기술로 주목받고 있다. 특히 가상현실 기술은 컴퓨터 시뮬레이션으로 창출된 3차원 가상공간으로 사용자가 현실 세계에서는 직접 경험하지 못하는 상황을 간접 체험할 수 있어 실재감과 몰입감을 경험하게 한다. 게임에서의 몰입과 실재감은 게임이용과 만족도에 큰 영향을 미치는 것으로 연구되고 있다. 따라서 본 논문에서는 가상현실을 이용하여 유저와 상호작용하고, 사용자에게 현실과 유사한 긴장감을 줄 수 있는 극한 도망 게임을 개발하였다.

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2004년도 추계학술논문발표회 논문집
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• pp.115-124
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• 2004

• 한국화재소방학회논문지
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• 제4권2호
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• pp.15-26
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• 1990

Building become higher. larger and more complex than ever before, showing abrupt changes in building structures. forms and mechanical systems. Likewise hazads of fire and the scale of fire losses become more and more greater. Therefore. considerations for fire safety take up great portion of the building design process. In this study, problems of high-rise building fires and basic directions for fire safety of high-rise building design were studied through the statistical analysis of 138 fire cases. The results of this study are summarized as follows : ·Most of the fires in high-rise building occur on the low floors and the fire frequencies are very low on the upper floors. Fire casualties are liable to be more on the upper floors than on tile floor of fire origin. ·The important causes of evacuation failures were analyzed as being late in escape and lack of stairwell enclosures. ·The main cause of vertical fire spread is lack of stairwell enclosures. However, the fire spreads mainly through the enterior windows in apartment houses. The combustible materials in buildings act on as the major factors of horizontal fire spread and the improper fire doors play role of another the critical causes. ·The basic directions for fire safety of high-rise building design put much stress firstly on the compartmentation of the buildings effectively performing the provision of safe escape routes and the safe refuse places in buildings.