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송정호,김남수,이용섭,김영중,송재모,이재선 한국유전학회 2002 Genes & Genomics Vol.24 No.2
Quercus variabilis is one of the most important tree species in both utilization of forest resources and management of forest ecosystem in Korea. To obtain the basic information for the establishment of breeding strategy and efficient management of genetic resources, five populations of Q. variabilis from 89 selected plus trees were studied using POPGENE and AMOVA analysis based on DNA markers focussing on the genetic diversity and variation among populations. The overall polymorphic amplicons were 78.6% and levels of genetic diversity within 5 populations were similar each other (Shannon's Index : 0.289∼0.423 [mean 0.366]). The values of total genetic diversity (H_t) and average gene diversity within population (H_S) were 0.265 and 0.239, respectively. The degree of genetic differentiation (G_st : 0.098) was relatively high compared with those of other tree species. Based on the cluster analysis of UPGMA, genetic relationships among 5 populations were not coincided with the pattern of geographic distribution.
국내 발전소별 바텀애시를 잔골재 대체재로 사용한 모르터의 특성에 대한 실험적 연구
송민섭,장재봉,조봉석,김재환,김용로,김무한 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)
With the advance in industrial development and modern living comfort, the demand for electricity throughout the country is ever increasing. Also the annual consumption of coal by coal-fired power plants is increasing. The amount of ash produced in 2000 is estimated to be about 4.5 million tons. The disposal of this huge amount of ash introduces serious environmental problems. Fly ash among the ash produced is used in building industries as a substitute to cement in concrete and the concrete thus produced is said to be lighter and stronger. But bottom ash among the ash produced is not used because of its poor properties. But encouraging the use of bottom ash as a construction material is a sensible method of utilization as it avoids the problems and costs associated with disposal and provides an alternative aggregate source. This study is aimed at using bottom ash as an alternative fine aggregate source to provide a solution to disposal and insufficient fine aggregate for the production of concrete. So properties of bottom ash produced in power plants were estimated due to the difference of bottom ash produced in each plant. And mortar strength was estimated as basic data to use bottom ash in building industries.
무기안료가 시멘트모르타르의 압축강도와 흡수율에 미치는 영향
송혁,이재용,고성석 한국안전학회 2004 한국안전학회지 Vol.19 No.2
The aim of this study was to investigate the influence of inorganic pigments on the physical properties of cement mortar. For this purpose, the compressive stieugth and absorption test were carried out on cement mortar mixed with inorganic pigments by changing the proportion of cement mortar, water-cement ratio, and ratio of pigment. The result of this study can be summarized as follows: The compressive strength of colored mortar rapidly increased in red and yellow mortar, as the mix ratio of pigment increased. In case of green and black mortar, however, the compressive strength decreased as the mix ratio increased. In case of red and yellow mortar, the absorption of colored mortar increased as the mixing ratio increased, if the mean particle diameter of the pigment is small. In case of green and black mortar, the absorption ratio decreased as the mix ratio increased. After investigating the overall physical properties of colored mortar, it was confirmed that the proper mix ratio of pigment securing the properties of colored mortar was below 6% of the weight of the cement to be used.
송무건,백재용,신관수,유송민 한국공작기계학회 2001 한국공작기계학회 춘계학술대회논문집 Vol.2001 No.-
In this study a vision system with image processing method have been introduced to find the edge radius of curvature. It was applied to inspect the edge quality of the de burring process product with brush grinding. Size of data was found to be critical in calculating the radius of curvature. Results using laser measurement system were compared.
송재훈,정기석,강문원,김도진,배현주,서지영,심태선,안중현,안철민,우준희,이남용,이동건,이미숙,이상무,이영선,이혁민,정두련,지역사회획득 폐렴 치료지침 제정위원회 대한감염학회 2009 감염과 화학요법 Vol.41 No.3
A successful therapy of community-acquired pneumonia requires appropriate empirical antimicrobial therapy. Etiology and antimicrobial susceptibility of major pathogens of pneumonia can differ by country. Therefore, an ideal treatment guideline of community-acquired pneumonia should be based on the studies performed in each country. We developed a treatment guideline for community-acquired pneumonia in immunocompetent adults in Korea. This guideline was developed by the joint committee of the Korean Society for Chemotherapy, the Korean Society of Infectious Diseases, and the Korean Academy of Tuberculosis and Respiratory diseases.
宋寶鉉,金龍斗,李在根 順天大學校 1985 論文集 Vol.4 No.1
매실의 野生酵母를 발효 실험을 통하여 酵母의 同定, 酒精, Fusel oil 및 香氣 成分을 分析한 結果는 다음과 같다. 매실에서 발견된 野生酵母는 Saccharomyce cervisiaeSP. 5종 Pichti속 3종. Torulopsis 2종을 同定하였다. 酒精 生成力은 일발연 1호가 16%였으며 野生 酵母Ⅰ,Ⅱ.Ⅲ,Ⅳ는 각각 15.2%, 14.1%, 7.64% 및 13.5%였다. Fusel oil 生命力은 일발연 1호가 2.7%, 396호가 2.6%였으며 野生 酵母 Ⅰ,Ⅱ,Ⅲ,Ⅳ는 각각 0.5%, 0.3%, 0.3% 및 0.5%로 나타 香氣 成分은 일반연1호, 396호, 野生 酵母Ⅰ은 비슷하였으며 野生 酵母Ⅱ, Ⅲ, Ⅳ는 香氣 成分이 많은 것으로 나타났다. This study was conducted to evaluate the alcohols and flavors through fermentational using the wild yeast isolated in Mume(prunus mume s.e.t.z.)and the wild yeasts were identified, concurrently. The alcohols and flavors were analyzed by chromatography. 5 species(Sacch,cerevisiae sp.), 3 species(Pichia genus)and 2 spcecies(Torulopsis sp.)were identified. In the alcohol yielding ability test of yeasts, the yielding ability was 16% in Sacch cerevisiae, and 15.2%, 14.1%, 7.6%and 13.5% in the wild yeasts(#1,2,3,4), respectively, while in the fusel, the percentage of fusel oil was 2.7% in Sacch. cerevisiae, 2.6% in sacch. formosensis, and 0.5%, 0.3%, 0.3%and 0.8% in the wild yeasts(#1,2,3,4,)respectively. The amount of flavors made by yeasts such as Sacch cervisiae, Sacch. formosensis and wild yeast #1 was similar in each case but that of the wild yearst #2,3,4 was much more than above 3 species yeasts.
工業敎育大學 工業化學敎育科의 敎科課程 改善에 관한 硏究
송해영,홍원표,맹기석,윤석호,노재성,강용 충남대학교 공업교육연구소 1983 論文集 Vol.6 No.2(A)
The methods for the improvements of curriculum of the Department of Industrial Chemistry Education were examined in some detail discussing the following items; 1) Comparison and analysis of the new curriculum with the old of the Department of Chemical Industry in technical high school. 2) Examination of the current curriculum of the Department of Industrial Chemistry Education in Industrial Education College. 3) Suggestion of the improved curriculum suitable for the students in the Department of Industrial Chemistry Education.
Lithium Tantalate 적외선 센서의 광전특성에 관한 연구
송재용,장충근,김석원 경북대학교 센서기술연구소 1990 센서技術學術大會論文集 Vol.1 No.1
스퍼터링(sputtering)으로 실리콘 기판위에 LiTaO_(3) 박막을 성장시켜서 비정질 적외선 센서를 제작하고, Crystal Technology회사에서 제공한 LiTaO_(3) 단결정으로 적외선 센서를 제작하여 그 특성을 비교하였다. 센서들의 출력신호, 잡음 및 검지도 등을 조사하여 본 결과 비정질 박막센서의 잡음은 두께가 얇을 수록 적었으며 단결정센서의 잡음 보다 적었다. 그러나 검지도는 단결정센서가 더 높았으며 전반적으로는 비정질 박막센서의 광전특성은 단결정 센서 보다 저조하였다. Amorphus LiTaO_(3) infrared sensors are fabricated with the thin film deposited by RF sputtering technique on silicon wafers, and single crystal infrared sensors were fabricated with the commerical LiTaO_(3) single crystal offered by Crystal Technology Ltd. The signal, the noise and the detectivity are measured, respectively. the noise of the thin film sensors decreases as the thickness decreases and it is smaller than that of the crystal sensors. But the detectivity of the single crystal sensors are higher and the overall photoelectric characteristics of the amorphous thin film sensors were inferior to those of the single crystal sensors.