• 농업과학연구
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• 제37권3호
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• pp.457-464
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• 2010

The low melting alloy impregnated wood composites with natural grain of thinned Juglans mandshurica was made and evaluated in this study. And the proper manufacturing conditions was also investigated in this study. The low melting alloy with bismuth(Bi) and tin(Sn) which are harmless to humans, was applied for this novel composites, which showed not only no defects of discoloration, delamination, swelling, and cracking, because of high dimensional stability and low thickness swelling, but also much improved performance such as high bending strength, high hardness, low abrasion, high thermal conductivity as floor materials. This study also suggested the proper impregnating condition, such as 10 minutes of the preliminary vacuum time, $187^{\circ}C$ of the heating temperature and 10 minutes of the maintaining pressure time at the pressure of 30kgf/$cm^2$. The produced composites showed 9 times higher density for small specimen, 6.6 times for actual size sample and great increase in bending strength from 102.05N/$mm^2$ to 189.47N/$mm^2$ for small size sample and to 205.4N/$mm^2$ for actual size sample, also great increase in hardness from 15.1N/$mm^2$ to 73.38N/$mm^2$ for small size sample and 64.87N/$mm^2$ for actual size sample. And the composites demonstrated great decrease in abrasion depth and in water absorption.

• KIEAE Journal
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• 제14권6호
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• pp.75-80
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• 2014

Development of temporary housing for victims whose house damaged is required. In this study is to plan temporary house space 'Mobile Energy Shelter House ; MeSH' that can be inhabited for a long time. And measure the indoor Environmental performance. 'Mobile Energy Shelter House : MeSH' was made by reflecting Passive Design, Universal Design. Also, thermal insulation that meets the 'Korea standard insulation' for use low energy. Winter season, measuring temperature, humidity, air velocity and radiation temperature when floor heating that temperature controllers ware installed is used. Confirmed the data for the 8:00pm to 8:00am because evening hours are expected as residents live. Average outdoor temperature was $-11.3^{\circ}C$ and Indoor temperature was from $16.09^{\circ}C$ to $20.63^{\circ}C$. Calculated the TDRi of the window surface for checked condensation risk. TDRi value was 0.185. Furthermore, PMV value was -0.08 to -0.85. It was satisfied to ISO comfort criterion ranged.

• 한국농촌건축학회논문집
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• 제17권1호
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• pp.105-112
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• 2015

The purpose of this study is to analyze characteristics of literature on the residential environments of Korean-Chinese people residing in China. The number of such studies on residential environment is a total of 123, of which 86 (69.9%) are Korean studies and 37 (30.1%) are Chinese studies. Research has been conducted in China since the 1980s, but from 1990s onward, research was conducted in Korea following the establishment of diplomatic ties between the two nations. More studies related to history, society, and tradition have been conducted in China than Korea because China is a multiracial nation and Korean-Chinese people comprise an ethnic minority. In terms of residential environment, the majority of studies are related to architecture and space and are typically focused on villages and housing. Studies on traditional housing of the Korean-Chinese focus on general characteristics of traditional housing, targeting China's three northeast provinces and the Yanbian Korean Autonomous Prefecture of China. Studies on modern housing of the Korean-Chinese have mainly been conducted in Yanji City in China. The reason for this is that 41% of Yanji City's population is Korean-Chinese, a distinct difference can be seen between Yanji City and other areas regarding changes of modern housing, and ondol (the traditional Korean floor heating system) is commonly found in modern housing there.

• 한국농촌건축학회논문집
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• 제18권1호
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• pp.19-28
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• 2016

This research aimed to suggest a standard design that reflects Hanok design tendency, and present a selective design that can fulfill a building owner's intention beyond the simple function of building permit or report. In addition, this research attempted to become a standard by establishing a criterion in calculating the measurements of section design or primary framework members, in order to be a guideline for designing Hanok in different sizes and forms. The results are as follows. The building area of Hanok standard design was set to be below $85m^2$, with a straight type of $83.16m^2$ and an L-shape of $84.24m^2$. By dividing the plane into a straight type and L-shape, two straight types were suggested: 'general type' and 'large living room type.' The upper floor space, along with the main room and small room, was proposed as an option to be changed into a room where an underfloor heating is installed depending on the building owner's intention. In addition, a criterion for side design and calculation of framework measurements was suggested and applied, while a five-girder design without high pillars was suggested for material-assembling structure. Two types of pillars-circumference and square cylinder-were proposed for the building owner to choose from, and a pointed beam house and ikgong(orthogonally-projected bracket) house were suggested for pojak bracket structure so either of them could be chosen according to the building owner's taste and economic condition. Finally, the sectional size of main materials were divided according to the form of pojak bracket structure to be proposed.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2008년도 춘계 학술논문 발표대회
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• pp.35-41
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• 2008

Qualitative enhancement of dwelling life has changing the recognition for the environment friendly wood which is being highlighted for its usage as an interior materials. This trend may prove the excellent performance of wood whose inherent characteristics has its comfortable, mild feeling of material, sound resistance and stabilities and the market of interior woods including floor, moulding and wooden panel as finishing interior materials is growing sustainably. However, since this materials is vulnerable to humidity and flame, waterproofing and flame retarding stability, an essential condition for interior materials, together with maintenance, are the main topics to be resolved. From the above-mentioned results, as a result of waterdrop contact angle, wood absorption volume and water content percentage test and the performance test of the processed materials after flame retardant, though there was some submerging time changes among types of woods for ensuring waterproofing performance improvement but as time passes, similar tendency was noticed to be formulated. As the submerging time is increased, so does the absorption volume and accordingly optimal level of range is judged to be drawn in order to ensure excellent performance, taking optimal economy into consideration. Therefore, it is considered that above-mentioned woods could be utilized for waterproof and flame retardant processed interior materials using uniform microwave and in order to put this technology into practical application, a research by way of diversified performance proving is required to be carried out.

• 수산해양기술연구
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• 제46권4호
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• pp.466-475
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• 2010

This study intends to present a direction for the better reforming of fishers'onboard living conditions and proposals for preparing for ratification of the Work in Fishing Convention by means of making a comparison between standards on recent national fishing vessel accommodation facilities and standards on the Work in Fishing Convention and Its Recommendation, 2007, ILO. For the most part of standards on national fishing vessel accommodation facilities are somewhat insufficient to satisfy the provisions in Annex III of the Convention. Considering by items on fishing vessel accommodation facilities, the standards on insect protector, noise and vibration, heating and air conditioning, lighting, persons per sleeping room, recreational facility are not provided in national law. Headroom, separation of accommodation, sleeping room floor area, mattress size, mess room, galley and food storage are partially sufficient for the Convention. In case of sanitary facilities, national standards are not sufficient for the Convention. The other side, facilities related safety of ship and crew such as emergency escape etc., are fully sufficient for the Convention. These insufficiencies caused by different types of fishing vessel depend on originality of fishing method and practices. In the comparison between equivalent tonnage about vessel's length on convention and calculated tonnage of national existing fishing vessel, the difference are 226tons about length 24m and 501tons about length 45m. For that reason, headroom, persons per sleeping room, cabin of sicker and injured, sanitary facilities may decide to use gross tonnage in place of length (L) and the alleviating measure basis of convention. But in case of standards on sanitary facilities which are unsufficient for the Convention, specially in coastal fishing vessel length basis should be adopted with alleviating basis for less than length 24m.

• 한국콘텐츠학회논문지
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• 제15권3호
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• pp.458-466
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• 2015

이 글은 근대 일본의 국어교과서에 기술된 한국을 분석하여 당시 한국에 대한 인식이 어떠했는지 살펴보는 것이 목적이다. 이 연구에서는 일본에서 국정교과서제도가 시행되었던 제1기(1904년)부터 제5기(1945년)까지의 국어교과서에 수록된 한국 관련 내용을 살펴보았다. 근대 일본의 국어교과서에서 한국관련 내용은 신공황후, 도요토미 히데요시, 풍속, 인삼, 서울과 시골풍경 등의 내용으로 요약 가능하다. 신공황후와 도요토미 히데요시를 통하여 한국은 수동적인 약소국의 이미지가 부여되었다. 또한 온돌, 의복, 의례 등 일본과 다른 문화를 지닌 한국을 소개하기도 하였으나, 짐을 실어 나르는 말과 비위생적인 모습을 제시하여 전근대적인 측면을 부각하고 조선총독부와 일제에 의해 신축된 건축물을 중심으로 서울을 묘사함으로써 식민성을 강조하였다. 나아가 조선의 시골 모습을 배경으로 한 이야기를 통하여 내선일체를 유도하였다

• 태양에너지
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• 제19권3호
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• pp.23-28
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• 1999

본 논문에서는 난방용 축열보드에 응용하기 위해서 미세캡슐을 함유한 축열블럭의 열성능 특성을 조사하였다. 상변화 물질인 $CH_3COONa{\cdot}3H_2O$를 미세캡슐 형태로 제조하였고 미세캡슐 함유량이 각각 10%, 20%가 되도록 시멘트 몰타르와 혼합하여 축열블럭을 제작하였다. 축열블럭의 축열 및 방열 특성을 분석하기 위하여 유량과 유입 냉각 온도를 변화시켰다. 실험결과를 보면 미세캡슐 함유량이 증가할 수록 블럭에 축열되는 축열량은 증가를 하였고 방열시간도 증가를 하였다. 그리고 방열과정시 유량이 증가하고 유입 냉각온도가 감소함에 따라 방열시간은 감소하였다. 순수블럭(0% 미세캡슐 함유량)은 방열과정시 총괄 열전달 계수는 시간에 따라서 일정하게 유지를 하지만 축열블럭에서는 시간이 지남에 따라 증가를 하였다.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2008년도 춘계 학술발표회 제20권1호
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• pp.661-664
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• 2008

고층 대형 건축물에 사용되는 기둥 보 등의 단면치수가 큰 Precast Concrete 부재는 제조과정에 있어서 외부에서의 가열뿐만 아니라, 시멘트수화열의 축척에 의한 내부에서의 온도 상승도 작용되기 때문에, 단면치수가 비교적 작은 벽, 밑바닥 등의 Precast Concrete 부재와는 다른 온도이력을 나타낸다고 생각할 수 있다. 이에 본 연구는 Precast Concrete적용을 위한 고강도 매스콘크리트 부재의 강도특성을 검토하기에 앞서, 온도이력특성을 밝히는 것을 목적으로 했다. 단면치수가 큰 Precast Concrete 모의부재의 단면치수, 단위시멘트량, 양생조건이 가각 다른 Precast Concrete 부재를 제조할 때의 온도이력특성을 총괄적으로 검토하여 분석하였다.

• 한국주거학회논문집
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• 제20권6호
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• pp.19-29
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• 2009

The purpose of this study is to clarify the spatial changes that have taken place in the main rooms (Anbang) and kitchens of traditional Utbangkkeokeum houses in Cheongju city, located on the central inland of Korea. These houses consist of a main house (Momchae) and a single-wing house (Nalgaechae), creating an ㄱ-shaped plan. The kitchen is in the front of the Nalgaechae, and the Anbang is at the rear. For the Momchae, the main hall (Daechung) is next to the Anbang, which is at the end of the Nalgaechae, and the room (Gunnunbang) is situated across from the Daechung. This study is based on the assumption that these houses have been conserved and altered from their original forms. As a result of alterations, many changes have occurred to the main room and kitchen spaces. The traditional main room is connected with two rooms (Utbang and Araebang), new standup kitchens are introduced, and floor heating systems are installed. The Anbang has maintained its sedentary lifestyle and the space for major daily activities such as sleeping and TV viewing. Also, TV viewing is a distinctive feature for residential purposes and the bedding is located in such a position that it is easy to observe any exterior movement for the elderly living alone. The layout of the standup kitchen has been altered to maintain the previous circulation, position and function of the entrance. Also, the kitchen and dining room were used together, and the size of these rooms has been partially increased from the original module in different ways for each case. The above findings suggest that Utbangkkeokeum houses of Cheongju city have been spatially changed while maintaining the previous lifestyle.