http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
건축공사 작업자의 생산성 관련 요인선정 및 요인별 중요도 관련 연구
김광희(Kim Gwang-Hee),정영철(Jung Young-Chul),김진동(Kim Jin-Dongn),이영도(Lee Young-Do) 대한건축학회 2012 大韓建築學會論文集 : 構造系 Vol.28 No.9
As the construction sites are exposed to various potential dangers and the construction workers are not sufficiently guaranteed of their wages and job security, the young people do not want to enter to the construction labor market. So, due to the shortage of young workers into the construction industry, the construction workers are getting older and the construction sites are hard in getting young workers. This study conducted the quantitative analyses of productivity factors using the importance analysis, variance analysis which affect the productivity of construction workers. The results of this study would help the construction managers to gradually meet the factors which affect the construction productivity and conduct the reasonable personnel management and this study also will be the basic data for future study on the enhancement of productivity of the construction workers.
무경운 및 유기농 논에서 품종에 따른 벼 생육 및 미질 특성 구명
이영한(Young-Han Lee) 한국토양비료학회 2010 한국토양비료학회지 Vol.43 No.2
저 투입 녹색성장이 가능한 무경운 논에서 우리나라 주요 벼 품종 32종과 일본 벼 품종 2종을 대상으로 이현미사질양토에서 유기농업에 적합한 품종을 선발하기 위해 수량, 수량 구성요소와 쌀 품질을 분석하였다. 벼 생육초기 초장은 중생종 품종이 조생종 및 중만생종 품종에 비해 짧은 경향이었다. 벼멸구 발생 밀도는 벼 품 종간에 통계적인 유의성이 없었으나 일품벼>동진1호=호진벼>동안벼>소비벼 순으로 벼멸구에 강한 것으로 나타났고 조생종 품종이 벼멸구에 약한 것으로 나타났다. 벼 잎집무늬마름병 발병 진전 비율은 새추청벼>추청벼>칼로스>남원벼>상미벼 순으로 높은 반면 화성벼>주남벼>새상주벼=히또메보레>일품벼>화영벼 순으로 낮았다. 우리나라 벼 품종별 수량은 화신벼가 2.95 Mg ㏊?¹, 일품벼 2.91 Mg ㏊?¹, 소비벼 2.86 Mg ㏊?¹, 내풍벼 2.73 Mg ㏊?¹, 새계화벼 2.70 Mg ㏊?¹ 순으로 높은 반면, 중생종인 화봉벼는 1.38 Mg ㏊?¹, 화영벼가 1.62 Mg ㏊?¹, 해평벼는 1.78 Mg ㏊?¹로 매우 낮았다. Toyo 식미치는 내풍벼 84.0, 상미벼 83.6, 화성벼 82.4, 새상주벼 82.3, 히또메보레 82.2, 화영벼 82.0, 일품벼 81.0 순으로 높은 반면, 남원벼 69.3, 새계화벼 71.4, 화봉벼 72.3, 동안벼 73.0, 동진1호 73.4의 순으로 낮았으며 중생종이 Toyo 식미치가 높았다. 등숙 비율이 높아질수록 Toyo 식미치가 증가되고 단백질함량은 유의적으로 낮아졌으며 완전미 비율이 높아졌다. 주성분 분석결과 무경운 논에서 유기농업에 적합한 벼 품종으로 조생종은 상미벼, 상산벼와 오대벼, 중생종은 내풍벼와 소비벼, 중만생종은 화신벼, 추청벼, 신동진벼가 양호하였다. This study was to find out optimum rice cultivars for organic farming in no-tillage paddy. A field research was conducted the yield, yield components, and qualities of thirty two Korean rice cultivars, and two Japanese rice cultivars. The column length of early rice plant was shorter in medium maturing rice cultivars compared to early, and medium-late maturing rice cultivars. Planthopper population per 20-plant was lower in Ilpumbyeo, Dongjinbyeo, Hojinbyeo, Donganbyeo, and Sobeebyeo in that order while was higher in rice cultivars of early maturity. The disease severity of sheath blight was higher in Saechucheongbyeo>Chucheongbyeo>Namwonbyeo>Sangmibyeo in that order, on the other hand, that was lower in Hwaseongbyeo>Junambyeo>Saesangjubyeo=Hitomebore>Ilpumbyeo>Hwayeongbyeo in that order, respectively. The grain yield of Korean rice cultivars was significantly higher in 2.95 Mg ㏊?¹ for Hwasinbyeo, 2.91 Mg ㏊?¹ for Ilpumbyeo, 2.86 Mg ㏊?¹ for Sobeebyeo, 2.73Mg ㏊?¹ for Naepungbyeo, and 2.70 Mg ㏊?¹ for Saegyehwabyeo compared with 1.38Mg ㏊?¹ for Hwabongbyeo, 1.62 Mg ㏊?¹ for Hwayeongbyeo, and 1.78 Mg ㏊?¹ for Haepyeongbyeo of medium maturing rice cultivars, respectively. Toyo taste value of medium maturing rice cultivars tended to higher than that of early, and medium-late maturing rice cultivars. Ripening rate of rice cultivars was significantly positive correlated with Toyo taste value while negative correlated with protein content. According to principal component analysis, these results show that Sangmibyeo, Sangsanbyeo, and Odaebyeo for early maturity, Naepungbyeo, and Sobeebyeo for medium maturity, and Hwasinbyeo, Chucheongbyeo, and Sindongjinbyeo for medium-late maturity were optimumrice cultivars for organic farming in no-tillage paddy.
경남지역 과수원 토양 화학성분이 미생물 생태에 미치는 영향
이영한(Young-Han Lee),장용선(Yong-Sun Zhang) 한국토양비료학회 2011 한국토양비료학회지 Vol.44 No.2
경남지역 과수원 토양 25개소를 대상으로 2010년에 토양 화학성분과 미생물 다양성을 검토하고 토성, 지형 및 작물별 주요 변동요인을 주성분분석으로 해석하였다. 토양 유효인산 및 치환성 칼륨 함량은 적정수준 보다 각각 2.6배 및 2.3배 높았으며 대부분 토양 화학성분의 최소값과 최대값 차이가 크게 나타났다. 지형적으로 산록경사지는 토양 유효인산 함량이 유의적으로 높았고 (p<0.05) 미사질양토에서 곰팡이와 형광성 슈도모나스균 개체수가 사양토 보다 유의적으로 높았다 (p<0.05). 주성분 분석결과 제 1주성분이 28.4%, 제 2주성분이 20.1%로서 전체 48.5%의 자료를 설명할 수 있었으며 제 1주성분은 토양의 세균개체수가 가장 크게 기여하였다. 토양 유기물 함량은 곰팡이 개체수와 정의상관을 보인 반면 세균 개체수와 부의상관을 나타냈다. Soil microbial diversity was responsible for a strong effect on the chemical properties of orchard soils. This study evaluated a relationship between soil chemical properties and soil microbial diversities at 25 sites in orchard soils in Gyeongnam Province. The average nutrients in the orchard soils were 2.6 times for available phosphorous, 2.3 times for exchangeable potassium and 1.3 times for exchangeable calcium higher compared to recommend concentrations in the orchard soils. Contents of available phosphorous and organic matter in the inclined piedmont soils were higher than those in the other topographical soils (p<0.05). Populations of fungi and fluorescence Pseudomonas sp. in the silt loam soils were significantly higher than those in the sandy loam soils (p<0.05). In principal component analysis of chemical properties and microbial populations in the upland soils, our findings suggested that population of bacteria should be considered as potential factor responsible for the clear orchard soils differentiation. The soil organic matter was significantly negative correlation with population of bacteria whereas was positive correlation with population of fungi in orchard soils.