• 한국건축시공학회지
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• 제4권3호
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• pp.101-108
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• 2004

The physical factor having a great influence among components of making values of profit model in apartment houses is equilibrium change of house and this study suggests an alternative of remodelling. It sets profit models including model dividing household of large scale into that of small scale using value making factor of apartment house and spatial composition techniques and model integrating households of small scale and converting them into those of large scale and finds that its economy is good as over 'average', evaluative value of economy is reduced as discount rate increases and economy of remodelling is superior.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2009년도 추계학술대회 논문집
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• pp.191-194
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• 2009

PtRu based and PtSn based ternary catalysts were prepared by a conventional impregnation method using NaBH4 as reducing agent. The alloy formation, crystalline size and chemical composition of the in-house catalysts were determined by XRD, TEM and EDX, respectively. The chemical compositions of in-house catalysts were quite similar to the nominal value and good alloy formations were also observed. Further, crystalline sizes of ternary catalysts were comparatively smaller than binary catalysts and were approximately 3.5 ~ 5.5 nm. The electrochemical measurements were carried out in the solution 1 M $H_2SO_4$ with 1 M $C_2H_5OH$ at room temperature. LSV results obtained that ternary catalysts were higher current densities and specific activities. Especially, in case of tungsten addition system, Pt5Sn4W/C have the highest specific activities values and was approximately 21.2 and 3.1 times higher than that of PtRu/C and PtSn/C electrocatalyst.

• The Korean Journal of Ecology
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• 제10권1호
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• pp.17-22
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• 1987

This survey was carried out in four areas in southern Korea from May 1983 through April 1986. A total of 1, 717 house rats was caught by trapping technique throughout the 4 areas. The total of 1, 535 trombiculid mites (4 genera, 7 species) was found only among Rattus norvegicus. Six species were observed in Seoul and Yangsuri areas, and 5 species in Seongnam area. No trombiculid mites were found in the rats caught in Inchon area. The highest infection rate of trombiculid mites (25%) was recorded in the rats caught in Seongnam area. And Leptotrombidium palpale was abundant species in general (detection rate; 72.8%) In seasonal variation, the hightes number of trombiculid population was observed from October through December in all the areas surveyed, and especially Euschongastia koreaensis apperaed more in autumn and winter than in any other season. The values of specie diversity and evenness of trombiculid mites found in Yangsuri were comparatively higher than those from the other areas.

• 한국농촌건축학회논문집
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• 제15권3호
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• pp.33-40
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• 2013

The rural traditional houses in Taebaek mountainous regions play important roles in figuring out values and social aspects of past time including housing life. But due to the introduction of convenient facilities in the current housing life style after industrialized society, many transformations have been taken place even to exist rural traditional folk houses such as installation of new equipment and furniture, the arrangement and function change of rooms, expansion of residential area and etc. So this study aims to secure basic data to prepare installation standard of the convenient facilities as examining convenience facility installation status of the cultural asset designated as rural traditional house, and to identify the meaning and usage of major room of rural traditional houses in order to prepare the proper balances between its original form preservation and residents' convenience living.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2010년도 춘계학술대회
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• pp.849-851
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• 2010

본 논문에서는 화초를 전문으로 관리하는 대규모 화훼단지 또는 사무실이나 가정 등에서 취미생활로 소량의 화초를 관리하고 있는 경우에, 화초에 물을 제때 공급해주지 않아서 화초가 말라죽는 것을 사전에 방지하기위한 물 공급 도우미를 제안 한다. 제안하는 시스템은 초기 연구단계로서 2개 이하의 화초에 대해서 적용한다. 습도센서를 사용해서 흙속에 존재하는 수분의 양을 측정하고, 수분의 양이 특정한 값 이하로 떨어지면 물 공급 시스템의 밸브를 자동으로 열어서 일정한 물이 공급되게 한다.

• 한국버섯학회지
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• 제15권1호
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• pp.14-20
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• 2017

버섯의 단위면적당 생산량을 증대시키기 위하여 다단으로 재배되는 버섯재배사는 재배균상이 내부공기의 유동을 막는 장애물로 작용하여 균상의 아래쪽과 위쪽간의 환경차이가 발생한다. 이러한 환경차이 때문에 버섯재배 균상의 위치에 따른 생육차이가 발생한다. 본 연구에서와 같이 버섯재배사 내부에서 버섯이 생육되지 않는 작업통로의 상단에 천장방향으로 대류팬을 설치하여 운용하면 재배사 내부의 공기를 전체적으로 균일하게 유지할 수 있는 것으로 나타났다. 다만, 버섯재배사 내부에 설치된 각종 환경조절장치 즉 유니트쿨러, 입기팬, 배기팬, 대류팬, 가습기 등이 모두 한꺼번에 가동될 때는 버섯재배 균상위의 RMS 값이 속도 23.86%, 온도 6.08%, 습도 2.72%로 나타났다. 하지만 유니트쿨러와 대류팬이 가동될 때는 균상위의 RMS 값이 속도 23.54%, 온도 0.51%, 습도 0.41%로 나타났다. 따라서 버섯재배사의 환경조절을 위한 입기팬, 배기팬과 가습기는 용량이 큰 것을 설치하여 전체적인 가동시간을 줄이고, 유니트쿨러와 대류팬을 조합한 환경관리 방법이 내부 환경의 균일성 향상에 큰 도움이 될 것으로 판단된다.

• 한국전통조경학회지
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• 제40권3호
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• pp.67-73
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• 2022

본고는 문화재 미등록 민가정원의 조영 당시 형태를 각 정원의 원형으로 삼아 미등록 민가정원의 변화과정을 추적하여 정원의 공간적 가치를 규명하고 전통정원의 계승과 변화라는 관점에서 미등록 민가정원의 역사공간적 가치를 논구하였다. 이를 위해 최근 지정문화재의 해제 수량 증가로 인해 정원의 보존 또한 위기에 처해 있는 강원도의 문화재 미등록 민가정원을 대상으로 정원의 공간변화를 통하여 미등록 민가정원의 양상을 규명하고 그 특성 및 가치를 천착하였고 이를 통하여 다음의 결과를 도출하였다. 첫째, 문화재 미등록 민가정원은 집성촌 지역에 입지하여 전통정원의 형태를 계승 유지할 수 있었다. 정원공간은 유교적 철학의 영향으로 공간이 구획되고 정원의 구성요소와 수종 및 식재방식이 달리 나타나고 있었다. 신분적 위계에 따른 정원 구성요소의 사용이 나타났다. 둘째, 대상지 4개소에서 공간의 축소가 지속적으로 확인되었다. 축소된 공간들은 정원공간들로서 도로의 신설과 환경개선 사업으로 정원의 일부가 국가로 귀속되는 현상이 나타났다. 셋째, 대상지 4개소 중 3개소에서 수령 100년 이상의 노거수 8주가 생육하고 있고 정원 구성요소들은 한중일 삼국에서 조선시대와 동시대에 사용되었던 석수조, 취병, 지당 등이 공통적으로 확인되어 전통정원의 역사성을 계승하고 있음을 확인할 수 있었다.

• 생물환경조절학회지
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• 제7권2호
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• pp.130-138
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• 1998

하우스 밀감의 착색을 촉진시키고자 궁천조생 8년생을 공시하고 ethephon (2-chloro-ethylphosphonic acid) 100＋ca1cium carbonate(clef-non) 10000mg.L$^{-1}$을 착색시부터 15일 간격으로 1회, 2회, 3회 살포하여 착색조사를 하였다. Ethephon ＋clef-non의 살포에 의한 과괴의 착색도 a는 살포회수가 많아질수록 높아지는 경향이었으며 a/b도 이와 유사한 경향으로 ethephon＋clef-non 살포에 의해 착색이 촉진되었다 포도당과 과당은 처리간에 차이를 볼 수 없었고, 자당 및 전당은 살포회수가 많아질수록 증가되는 경향이었으나 유의차가 없었다 당도는 모든 처리구에서 12。Bx 이상으로 높은 편이었는데 3회 살포구(13。Bx)를 제외하고는 살포회수간에는 차이가 없었다.

• 한국주거학회논문집
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• 제10권4호
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• pp.1-10
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• 1999

The purpose of this study was to investigate the environmental factors having a influence on the preference of residential district and to furnish basic information for the successful settlement. For the purpose, residential preference and values on the residential district were estimated according to the housing life cycle. Data were collected through questionnaires designed for this study, and the objects of this research were university students. To analyze the data were used spsswin program. The major results were as follows. 1. According to the housing life cycle, there were significant differences in the preference of the residential district, living area and housing type in the future. Metropolitan and seoul, residential area and commercial area, apartment, office-hotel and row house were preferred in the housing formative. In the stable period, seoul and metropolitan, tower apartment, residential area were preferred. But in the housing reductive period, they preferred a green zone in the rural, the detached house. 2. The degree of consideration of living convenience facilities was high in the housing formative period. Both education-leisure, business facilities and marketing facilities were highly valuated in the housing stable period. But the value of welfare facilities was high in the housing reductive period. 3. The 4 dimensions of values in environmental conditions were extracted through factor analysis. They were natural, human, social, and economic factors. According to the housing life cycle, there were significant differences in factors being considered as the environmental conditions. The values of human and economic factors were high in the housing formative and stable period. Natural factor were highly considered in the housing reductive period.

• 한국가금학회지
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• 제27권1호
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• pp.1-6
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• 2000

An experiment was conducted to determine the nutritional values and variations of food wastes according to seasons and sources. Food wastes were sampled monthly from Feb. to Aug. at gathering sites from home kitchens, school restaurants and Korean food restaurants. chemical analyses revealed that crude fiber and NaCl contents were in the range of 5.41∼10.36 and 3.67∼5.40%, respectively, and the variations were especially high in summer. Ash content was highest in spring. With regard to the sources, the wastes from Korean food restaurants was highest in ash, calcium and phosphorus. On the other hand, crude fiber and fat were highest in the waste from house kitchens and NaCl in those from school restaurants.