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이두표,김우열 호남대학교 2007 학술논문집 Vol.28 No.2
To elucidate the present forest avifauna of Jangsoo county, bird censuses were conducted at Mt. Seongsu, Mt. Bonghwang, and Mt, Mabong from April to July, 2006. A total of 48 bird species was recorded. Among them, 36 species were estimated prospective breeding species. The most of dominant species in this area was Paradoxornis webbianus. The legal protected birds listed by Ministry of Environment were 2species : Falco peregrinus(endengerd species classⅠ) and Charadrius placidus(endengerd species classⅡ). And also, natural monuments designated by Cultural Heritage Administration were six species : Falco peregrinus, Accipiter soloensis, Falco tinnunculus, Ninox scutulata, Otus scops and Aix galericulata
포름알데하이드에 폭로된 해부학 실습 학생들의 임파구 자매염색분체교환
백두진,주수자,김기영,이수진,심상효,손정일,심성한,송재철,조율희 大韓産業醫學會 1998 대한직업환경의학회지 Vol.10 No.2
Sister-chromatid exchanges measured in the peripheral lymphocytes of 15 non-smoking medical students after exposure to formaldehyde during 24-week anatomy class showed a small but significant (p=0.0468) increase when compared with samples obtained from the same individuals immediately before exposure. Mean frequencies of sister-chromatid exchange of cultured peripheral lymphocytes were 5.40±0.24 from the samples before exposure and 5.87±0.22 from the same samples after exposure. Breathing-zone air samples collected by formaldehyde monitoring kit with digital colorimeter(SKC) showed a mean concentration of 0.72±0.02 ppm formaldehyde.
새로운 동기정류기 이용한 고효율 하프브리지 DC-DC 컨버터
유두희,정강률 순천향대학교 부설 산업기술연구소 2007 순천향 산업기술연구소논문집 Vol.13 No.1
This paper presents a high efficiency half-bridge dc-dc converter using a novel synchronous rectifier. After conventional self-driven synchronous rectifier technique applied to each conventional converter is briefly reviewed, the new topological self-driven synchronous rectifier applied to the proposed converter is briefly described. The new topological synchronous rectifier increases the system efficiency using low on-resistance of its switches and its switch conduction time extension to the whole switching period, which is one of the characteristics of the asymmetrical half-bridge converter. The synchronous rectifier type used in the proposed converter is a little modified type of the conventional synchronous rectifier used in the conventional asymmetrical half-bridge converter, which changes the transformer structure and synchronous rectifier switch connection. The operational principle of the proposed half-bridge dc-dc converter is explained, and according to this, a design consideration is shown. As the proposed converter utilizes the transformer leakage inductance as the resonant inductance, its structure is more simplified. The circuit operation and mathematical analysis of the proposed converter are given in detail. Also it is shown through the experimental results that the proposed converter operates excellently as a high efficiency converter.
( Doo Youl Lee ),( Min Sik Kim ),( Liudmila Larina ),( Byung Tae Ahn ) 대한금속재료학회 ( 구 대한금속학회 ) 2008 ELECTRONIC MATERIALS LETTERS Vol.4 No.1
A Cu(In,Ga)Se2 light-absorbing layer was prepared by a three-stage process employing the evaporation of In2Se3, Ga2Se3, and Cu2Se. The Cu content in the layer was adjusted by controlling the third-stage evaporation time. A sturdy n-CdS/p-CIGS junction was realized when the Cu content in Cux(In0.66Ga0.34)Se2 was approximately 0.87, and the diode and photovoltaic parameters were also improved. At this condition, the doping concentration and junction depth were 7×1015cm-3 and approximately 650 nm, respectively. The current collection efficiency in red light and longer wavelengths was improved in the sturdy junction. The efficiency of CdS/Cu(In,Ga)Se2 solar cell was 13.4% when the composition of CIGS film was Cu0.87(In0.66Ga0.34)Se2.
도서지역 응급환자 이송을 위한 충남형 닥터 UAM 개발 전략
송두열(Doo-youl Song),김태홍(Taehong Kim) 한국정보통신학회 2021 한국정보통신학회 종합학술대회 논문집 Vol.25 No.2
충청남도 도서지역에 주민들이 정기적으로 이용할 수 있는 공공의료시설은 보건진료소 14개, 건강생활지원센터 1개, 병원선 1척이 전부이며, 이러한 시설과 장비로는 중증외상, 뇌혈관 심혈관 질환 등의 응급환자 발생 시 효과적으로 대응할 수 없다. 가장 신속한 응급환자 이송 수단은 단국대학교병원(천안시 소재)에 배치된 닥터헬기를 이용하는 것이다. 그러나 배치된 닥터헬기는 1대 뿐이고, 야간에는 운항을 할 수 없으며, 충청남도 전 지역을 담당하므로 다수 환자 발생 시에는 신속한 이송에 한계가 있다. 따라서 4차 산업의 한 분야인 도심 항공 모빌리티(UAM) 산업과 도서지역 응급환자 이송체계의 문제점을 보완하는 ‘충남형 닥터UAM 개발’의 필요성을 검토하고자 한다. There are only 14 public medical facilities available to residents regularly in the island area of Chungcheongnam-do, one health life support center, and one hospital ship, and these facilities and equipment cannot effectively respond to emergency patients such as severe trauma, cerebrovascular and cardiovascular diseases. The fastest means of transporting emergency patients is to use a doctor helicopter deployed at Dankook University Hospital (based in Cheonan). However, there is only one doctor helicopter deployed, and it cannot operate at night, and since it is in charge of all areas of Chungcheongnam-do, there is a limit to rapid transport in the event of a large number of patients. Therefore, we would like to review the necessity of “Chungnam-type Doctor UAM Development” to compensate for the problems of the urban aviation mobility (UAM) industry and the emergency patient transport system in islands, a field of the 4th industry.
A New Black Soybean Cultivar, “Geomjeongsaeol” with Large Seed,Early Maturity and Lodging Tolerance
In-Youl Baek,Keum-Yong Park,Jung-Kyung Moon,Yong-Ho Kim,Sun-Lim Kim,Ja-Hwan Ku,Yeong-Ho Lee,Yong-Hwan Ryu,In-Youl Baek,Won-Young Han,Hyun-Tae Kim,Jun-Hyeon Cho,Jong-Min Ko,Doo-Chull Shin,Duck-Yong Suh 한국육종학회 2005 한국육종학회지 Vol.37 No.5
A new black seed coated soybean cultivar with yellow cotyledon, Geomjeongsaeol was developed at the YeongnamAgricultural Research Institute (YARI) in 2004. Geomjeongsaeol was selected from a cross Keunol/ Geomjeongol. The prelimi-nary, advanced, and regional yield trials for evaluation and selection of this line (Milyang 123) were carried out from 1999 tospherical seed shape, oval leaflet shape, and large seed size (31.1 grams per 100 seeds), and it was 4 days later in maturity than thecheck variety Geomjeongol. In the seed quality such a crude protein, oligo-saccharide, and anthocyanin contents, Geomjeongsaeolwas higher than check variety, and it has good adaptability for cooking with rice. It also has been identified to have resistance tosaeol was 2.34 ton per hectare in the regional yield trials (RYT) carried out for two years from 2003 to 2004 which was 26 percenthigher than the check variety Geomjeongol.
A New Edible Pod Kidney Bean Cultivar, "Noghyeob 1" with Green Pod Color
Doo Chull Shin,Sung Taek Kang,Won Young Han,In Youl Baek,Myoung Gun Choung,Keum Yong Park,Seong Hyu Shin,Young Hyun Hwang,Jong Min Ko,Duck Yong Suh,Ho Yeong Kim 한국육종학회 2007 한국육종학회지 Vol.39 No.3
A new kidney bean cultivar, “Noghyeob 1” was developed at the Yeongnam Agricultural Research Institute (YARI) in 2005. “Noghyeob 1” was selected from a cross between KLG50074 and KLG50063. It has determinate growth habit, white flower, green pod color, oval shape of crossed section of pod at the harvesting time for edible pod, white seed coat and middle seed size (21.1 grams per 100 seeds). The average yield of edible pod of “Noghyeob 1” was 24.25 M/T per hectare in the yield trials which were carried out at the green house in spring and autumn in 2005. It was 7 percent higher than that of the check cultivar “Kangnangkong 1”.
Doo Chull Shin,In Youl Baek,Won Young Han,Myoung Gun Choung,Sea Kwan Oh,Sung Taeg Kang,Su Dong Kim,Soon Chul Kim 한국육종학회 2003 한국육종학회지 Vol.35 No.4
A new sprouting soybean variety, 'achaekong'was developed at the National Yeongnam Agricultural Experiment Station (NYAES) in 2002. It was selected from the cross Hannamkong/Eunhakong. The preliminary, advanced, and regional yield trials for evaluation an