http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
誘導 電動機의 電源 周波數 可變에 의한 最適 制御에 관한 硏究
李五杰,李浚析,鄭基和,禹靖仁 동아대학교 공과대학 부설 한국자원개발연구소 1990 硏究報告 Vol.14 No.1
In general, unstable phenomena of induction motor are oftenly appeared at low speed and light load. This paper discribes eigenic unstable regions of I.M. itself by computer simulations and the results are Compared to experimental ones. And also the Optimal design parameters of I.M. which the un-stable region can be minimized are determined.
윤정원 ( Jung Won Yoon ),김용식 ( Yong Shik Kim ),신현탁 ( Hyun Tak Shin ),김기송 ( Gi Song Kim ),성정원 ( Jung Won Sung ),이창현 ( Chang Hyeon Lee ),박기환 ( Ki Hwan Park ),이명훈 ( Myung Hoon Yi ) 한국환경생태학회 2013 한국환경생태학회지 Vol.27 No.2
본 연구는 경주국립공원(남산, 토함산, 단석산)의 관속식물상을 밝히고 주요 식물들의 분포를 조사하였다. 2011년 7월부터 2012년 5월까지 총 7회 조사하였다. 조사결과 관속식물은 96과 284속 385속 4아종 41변종 6품종으로 총 436분류군을 확인하였다. 그 중 산림청 지정 희귀식물은 7분류군, 특산식물은 13분류군이다. 식물구계학적 특정식물은 41분류군으로 Ⅴ등급 1분류군, Ⅳ등급 3분류군, Ⅲ등급 9분류군, Ⅱ등급 4분류군,Ⅰ등급 24분류군이다. 한편 귀화식물은 29분류군으로 확인하였으며, 귀화율은 6.65%, 도시화지수는 9.03%이다. 조사된 436분류군의 유용도는 목초용 자원식물이 182분류군(41.7%), 식용 176분류군(40.4%), 약용 147분류군(33.7%), 관상용 52분류군(11.9%), 목재용 18분류군(4.1%), 염료용 16분류군(3.7%), 섬유용 8분류군(1.8%), 공업용 자원식물이 1분류군(0.2%) 그리고 용도가 밝혀지지 않은 식물이 79분류군(18.1%)으로 나타났다. This study was carried out to investigate the vascular flora of Mt. Nam, Mt. Toham, and Mt. Danseok in Gyeongju National Park . The vascular plants were surveyed for 7 times from July 2011 to May 2012. The results were summarized as 436 taxa, 96families, 284 genera, 385 species, 4 subspecies, 41 varieties, and 6 forms. The 13 taxa were categorized as Korean endemic plants species and the other 7 taxa as rare plants species, which categorized by the Korea Forest Service. Based on the Floristic Degrees categorized by the Specific Distribution of Plants Species, one taxa grouped as the Floristic Degree Ⅴ, 3 for Floristic Degree Ⅳ, and 9 for Floristic Degree Ⅲ, 4 for Floristic Degree Ⅱ, and 24 taxa for Floristic Degree I. The naturalized plants were recorded as 29 taxa, and their Naturalization Ratio and Urbanization Index were recorded as 6.65%, and 9.03%, respectively. 436 taxa listed consists of 182 taxa(41.7%) of pasturing plant, 176 taxa(40.4%) of edible plants, 147 taxa(33.7%) of medicinal plants, 52 taxa(11.9%) of ornamental plants, 18 taxa(4.1%) of timber plants, 16 taxa(3.7%) of stain plants, 8 taxa(1.8%) of fiber plants, 1 taxa(0.2%) of industrial plants and 79 taxa(18.1%) of unknown plants.
미국 지역별 라돈의 Pci/L 수치와 폐암 발생률 연관성 분석
김기탁(Gi Tak Kim),정용규(Yong Gyu Jung) 한국IT마케팅학회 2014 한국IT마케팅학회 학술대회 Vol.2014 No.1
Radon, back and forth 1900 with an inert gas element to emit strong radiation, was found in a gas emanating from a plurality of radioactive material. As some of the substance radon that occurs mainly from natural sources of indoor air pollutants, is a non-voluntary risk factors that we do not want, and accounted for a large proportion also with an appropriate amount of the all natural radioactive substance it has been found have. Radon is has been erupted without rest in an apartment building Raden of if there is a heavy substance than air, is also referred to as the major cause of lung cancer in non-smokers as a primary carcinogen. Therefore, in this paper, by comparing the number and lung cancer mortality Pci / L of radon through the data mining big data provided by the United States, and analyze the relevance of whether radon affect lung I tried to.