• 한국작물학회지
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• 제14권
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• pp.47-51
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• 1973

수도 분얼 기간의 기온의 고저 및 교차가 수도 생육에 미치는 영향을 알고저 분얼기를 활착후 10일간씩 초기, 중기, 후기로 나누어 주간 온도를 $25^{\circ}C$, $30^{\circ}C$, 야간 온도를 10,15,20,$25^{\circ}C$로 7조합을 하여 작물시험장 인공 기상실에서 시험한 결과를 요약하면 다음과 같다. 1. 최고 분얼수는 조기, 중기 처리에서 많고 후기 처리에서 영향이 적었다. 2. 온도 처리 완료후의 초장$\times$경수의 적은 조, 중기에서 주간 $30^{\circ}C$, 야간$25^{\circ}C$에서 컸으며 후기 처리는 차이가 적었다. 3. R.G.R(g/g/day)는 조기 처리에서 높았다. 4. 성숙기 엽중은 조기 처리에서 가장 많고 후기 처리에서 적었다. 5. 따라서 수도 생육에 미치는 온도의 영향은 분얼 초기에 크다고 하겠다.

• 화훼연구
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• 제17권4호
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• pp.226-230
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• 2009

'백마'의 겨울철 재배시 야간최저온도가 생장 및 생리장해 발생에 미치는 영향을 알아보기 위하여 야간최저 온도를 각각 $14^{\circ}C$, $16^{\circ}C$, $18^{\circ}C$로 처리한 후 온도별 생육 및 개회특성, 생리장해 발생 등을 '신마'와 비교하여 조사하였다. 발뢰소요일수는 모든 처리 온도에서 '백마'가 '신마'보다 2-11일 정도 길었으나, 개회소요일수는 두 품종 모두 54-59일 정도로 품종간에 유의차가 없었고, 야간 최저온도가 높아짐에 띠라 개화소요일수가 짧아지는 경향을 보였다. 절화장 및 절회중은 두 품종 모두 야간최저온도가 높아질수록 감소하였고, 꽃잎수는 '백마'의 경우 $16^{\circ}C$에서 300개 이었으나, $14^{\circ}C$와 $18^{\circ}C$에서는 각각 210개, 233개로 적어져 온도에 따라 큰 차이가 있었지만, '신마'의 경우에는 온도간 차이가 없었다. 동계 저온에 의한 생리장해 중 로젯트는 '백마'에서만 발생하였으며 $14^{\circ}C$에서 11.1%, $16^{\circ}C$에서 55.6%, $18^{\circ}C$에서 56.1% 발생하였다. 단일처리 후 미발뢰율은 야간최저온도 $14^{\circ}C$에서 '백마' 17.3%, '신마' 4% 이었다.

• 상하수도학회지
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• 제24권4호
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• pp.407-412
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• 2010

The purpose of this study was to investigate removal efficiencies of contaminants in night soil treatment plant using the B3 system. The samples were collected from retaining tank and settlement tank in Yechon night soil plant. We experimented concentrations of BOD, COD, SS, TN and TP. Concentration data were processed using removal efficiencies by season and correlation analysis with pilot running parameters. Removal efficiencies of total organic carbon was over 96%, TN was 98% during summer, 80.9% during winter. In the case of TP, the highest removal efficiencies was 94.1% during fall and the lowest removal efficiencies was 82% during spring. Results of correlation analysis showed two positive correlation groups and one negative group. Positive correlations were among temperature, BOD and TN. The others were pH, BOD, COD, SS, TN and TP. Negative correlation were among MLSS, BOD, COD, SS, TN, TP.

• 설비공학논문집
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• 제27권12호
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• pp.633-638
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• 2015

This study evaluates the capacity of night purging in office buildings to reduce the cooling load. RTS-SAREK is used to estimate the performance of night purging on the steady state. To overcome steady state RTS program limitations, we added unsteady heat transfer equations. When the ACH (Air Change per Hour) increases, the wall temperature decreases in both the steady and unsteady states. The unsteady heat transfer rate is different from the steady transfer rate, which validates the unsteady calculation. When ACH is low, the heat transfer rate increases continuously with time. When ACH becomes higher, the heat transfer rate increases and decreases with time. When ACH is quite high, there exists a large difference in the heat transfer rate between the steady and unsteady calculations, which emphasizes the importance of the unsteady calculation.

• 조명전기설비학회논문지
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• 제25권4호
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• pp.7-15
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• 2011

Based on the master plan, this study classified Wonju-si into five major regions and 19 areas by analyzing its night characteristics and deduced problems by analyzing quantitative light distribution of major points at the regions and areas through the measurement of illuminance and luminance and by surveying people's awareness. To develop eco-friendly night environment image of Wonju, Woju's identify was to be created by the planning for the 19 area and improvements for each type. Additionally, detailed items for maintenance were suggested by classifying them into illuminance, color temperature, luminance, lighting display, lighting time, light distribution type, and so forth.

• 한국주거학회논문집
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• 제11권3호
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• pp.137-144
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• 2000

The purpose of this study is to examine the climate characteristics of Haheo in order to find ecological design of a traditional village and residence. In this study, the weather data during sixteen month from May 1998 to August 1999 was measured and analyzed. The results of this study were as follows; 1) In winter, the west wind was dominant at the 60% of rate during the day. The rate of west wind decreased to 30% at night, while the rate of south wind and south-east wind increased to 40%. 2) The relative humidity was higher than 90% at morning because of a fog in summer. 3) In summer, there were many days that the air temperature rose over $30^{\cire}C$ in the daytime, but the air temperature fell about $20^{\cire}C$ at night.

• 한국농공학회지
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• 제43권6호
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• pp.120-126
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• 2001

This experiment was carried out to analyse on the cooling and dehumidifying effects of greenhouse by air-to-water heat pump system employing the air as cooling source. following results were obtained ; 1. The coefficients of performance (COP) of heat pump itself and total heat pump system were approximately 2.71~2.88 and 1.99~2.22, respectively. 2. The night-time cooling load of experimental greenhouse was 64.9 MJ/h, and the heat absorbed (cooling load) from heat pump system was 816.3~1,004.6 MJ/day. 3. The dehumidified moisture amount from experimental greenhouse was 7.0~15.0 kg/h. 4. The night time temperature of experimental greenhouse cooled by heat pump system could be maintained 4~6$^{\circ}C$ lower than that of control greenhouse which was almost equal to outside air temperature.

• 대한지리학회지
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• 제37권3호
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• pp.237-246
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• 2002

본 연구는 최근 30년 (1971-2000) 최한월 (1월) 평균 기온 및 풍속, 일사량 자료를 토대로 산출한 겨울철 주.야간 바람냉각지수의 분포를 바탕으로 남한의 겨울철 생리 기후지역을 구분하였다. 그 결과. 겨울철 주.야간 바람냉각지수는 기온, 풍속, 일사량 등의 기후요소뿐 아니라 해발고도, 해륙풍, 지형, 해류 등의 기후인자의 영향을 받아 남한은 크게 5개의 생리기후지역으로 세분되었다: 주간 서늘-야간 추움 지역, 주간 쌀쌀-야간 추움 지역, 주간 쌀쌀-야간 매우추움 지역, 주.야간 모두 추움 지역, 주간 추움-야간 극도로 추움 지역, 특히, 남해안을 제외한 해안-도서지역은 계절풍 및 해륙풍의 영향으로 주간에는 싸늘함(Keen), 야간에는 매우 추움(Very Cold)의 체감도를 보였다. 또한, 해발고도가 높은 대관령 지역에서는 기온 감률 및 계절풍의 영향으로 주간에는 추움(Cold), 야간에는 극도로 추움(Extremely Cold)의 체감도를 보였다. 본 연구는 다양하게 나타나는 주야간 바람냉각지수의 분포를 바탕으로 남한의 겨울철 생리기후 지역을 구분함으로써 의복 및 건축 등의 단열에 관한 의사결정시 필요한 기초자료를 제공하고자 하였다.

• 생물환경조절학회지
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• 제32권1호
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• pp.15-22
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• 2023

장미는 전세계적으로 가장 많이 생산되는 화종 중 하나로, 절화 장미는 시설 내부에서 연중 생산된다. 최근 여름철 시설 내부 온도 상승으로 인해 절화장 단축 등 절화 장미의 품질 저하가 심각하게 발생하고 있다. 본 연구는 계절별 절화 품질 및 수량을 비교하여 여름철 생산된 절화 장미의 품질 특성을 파악하고, 고온기 야간 냉방을 통한 온도 하강 효과와 여름철 절화 품질 개선 효과를 검정하고자 수행하였다. 'Pink Beauty'은 여름철 절화장, 화수장, 경경, 화수경경, 화폭, 생체중 등이 통계적으로 유의하게 저하되었으며, 'Pink Shine'은 여름철 절화장, 경경, 화폭 및 화고, 생체중이 통계적으로 유의하게 저하되었다. 고온기 야간 냉방을 수행한 결과, 7-8월 온실 내부 평균 온도는 약 2.5℃ 저하되었으며, 배지 평균 온도는 약 3.0℃ 감소되었다. 고온기 야간 냉방 시 절화 품질 및 수량을 비교한 결과 세 품종 모두 야간 냉방 시 절화장, 생체중, 경경 등 절화 품질이 향상되었다. 이를 통해 고온기 야간 냉방이 여름철 절화 장미의 품질 저하 문제 해결에 도움이 될 것으로 기대된다.

• 한국작물학회지
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• 제61권2호
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• pp.131-137
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• 2016

This study was conducted to investigate the effects of temperature and shade, which are basic environmental conditions, on growth, yield, inorganic components, and general components of Codonopsis lanceolata, in order to obtain basic data for improving yield capacity. In natural light, in the 15, 20, and $25^{\circ}C$ groups, the plant heights ranged between 218.9 cm and 223.9 cm, and there was no significant difference between groups. However, the leaf size was larger in shade, and the leaf area was significantly larger in the 15 and $30^{\circ}C$ groups. In natural light, root length and diameter were shorter and thinner when the temperature was higher, and growth was highly suppressed at $30^{\circ}C$. With regards to macroelements, the contents of Na, Mg, and P increased as temperature increased, regardless of the plant part; however, no constant tendency was observed in K and Ca according to temperature. The contents of Mg and Ca (from highest to lowest) were in the order leaf>stem>root, whereas the contents of Na, P, and K were in the order stem>leaf>root. Contents of general components varied according to temperature, and were highest at $30^{\circ}C$. While the plant height was increased under the constant $25^{\circ}C$+DIF (Difference between day and night temperature) condition, growth was suppressed in the -DIF group, in which the night temperature was higher than the day temperature, which suggests that a change in night temperature is one of the factors that affects the growth of C. lanceolata. As in the growth of the above-ground parts, fresh weight of the root was high in the constant $25^{\circ}C$ group and +DIF group. Notably, it was more than 2.5 times the fresh weights in the constant $15^{\circ}C$ group, constant $20^{\circ}C$ group, and -15 DIF group.