LabVIEW를 이용한 전력품질 분석기술 교육용 웹기반 e-learning 시스템 구현

홍상은,심필섭,한장이 순천향대학교 부설 산업기술연구소 2005 순천향 산업기술연구소논문집 Vol.11 No.2

In this paper, we focused on the implementation of e-learning system for training of power distribution operators in Power Company. And also this paper presents Web-based system for electric power quality analysis based on the LabVIEW approach to enhance streaming of live data and to facilitate the interaction on the PC platform The recent growth in the use of impactive nonlinear loads, electronic and medical devices with sensitiveness to power quality has caused many power quality problems and power supply-and-demand problem. Therefore, the proposed system can also support the solution tool for field operators in the various power quality problems.

Tomatotone과 Gibberellin(GA3)의 處理가 輸出用 가지(Solanum melongena. L)의 生育 및 收量에 미치는 影響

최성관,이재필,진동호,오주성,박흥식,정순재 동아대학교 농업생명과학연구소 2001 農業生命資援硏究 Vol.10 No.1

These grafting seeding "Torobambica", rootstock "Jang Ja" and "Chuk Yang" were tested to investigate the differences between the growth of eggplants and the number of eggplants which can be influenced by the growth retardant aerosol. For the test of the growth retardant aerosol, the flower clusters were sprayed with one hundred units of Tomatotone liquid and with three hundred units of GA3 on the day they flowered and sprayed two or three days before flowering. The results were as follows: 1.According to the growth retardant aerosol of Tomatotone, the plant height was the tallest at 226.21 cm with foliar spray and the high Marketable fruit was good at the percent of 77.38 with a flowering spray and Tomatotone on the day they flowered. 2.According to the growth retardant aerosol of GA3, the plant's height was the tallest at 229.27cm with foliage which was sprayed every week. The high quality fruit was good at the percent of 69.11 with a flowering spray and GA3 on the day they flowered. 3.According to Tomatotone and GA3 treatments of the plant growth regulators, the plant's height was the tallest sprayed every week and the high Marketable fruit was good at the flowering spray and Tomatotone on the day they flowered. and Yield per 10a was good at the flowering spray and Tomatotone on the day they flowered.

식품저장수명에 대한 ceramic film package의 효과

홍상필,오두환,양융,선보경 연세대학교 산업기술연구소 1993 논문집 Vol.25 No.1

The positive of effects of ceramic film package on the shelf life of foods were compared with those of P.E. film. compared with P.E. film package, ceramic film package inhibited growth of microorganisms and decreased lipid oxidation velocity. Ceramic film package extended the shelf life of Vit. C and stabilized chlorophyll pigment. Total score in the organoleptic tests for ceramic film packed foods was higher than that for P.E. film packed foods.

cAMP가 보리와 귀리잎 Protoplast의 팽윤에 미치는 영향

송필순,송성준,유장걸,문두길 제주대학교 방사능이용연구소 1988 연구보고 Vol.3 No.-

암조건에서 생육시킨 보리(barley)와 귀리(oat) 잎의 상단부에서 분리한 protoplasts는 dibutyryl cAMP 처리에 의해서 팽윤되었으며 또한, 적색광과 cAMP 혼합처리에 의해서는 protoplasts 팽윤효과가 상승되었다. 따라서 phytochrome작용계와 cAMP는 일련의 공통기능을 갖고 있는 것으로 사료되며, GA₃처리에 의해서도 보리와 귀리의 protoplasts가 팽윤되므로 GA₃와 cAMP 그리고 phytochrome작용계가 서로 연류되어 있을 가능성이 있다고 생각된다. 한편, 적색광을 조사하거나 GA₃를 처리한후 전자현미경사진을 촬영해 봤을 때, 적색광처리에서는 plastid발달이, GA₃처리에서는 액포발달이 현저하였다. The effect of cAMP on the swelling of protoplasts isolated from the primary leaves of etiolated barley and oat was studied. The presence of 50ul dibutyryl cAMP caused protoplast swelling. The red light irradiation after adding dibutyryl cAMP enhanced the increase of protoplast size. It is likely that cAMP and phytochrome have common regulatory mechanism mediating protoplast swelling. The protoplast swelling of oat and barley leaves was accelerated by GA₃addition, indicating that cAMP, phytochrome and GA₃were closely involved in protoplast swelling. The electron microscopic pictures showed that red light irradiation made better plastid development in oat protoplasts and GA₃addition increased the vacuole size.

공명위치에 따른 ECR 플라즈마의 에너지 변화

김필수,김남성,안무선 漢陽大學校 自然科學硏究所 1996 自然科學論文集 Vol.15 No.-

ECR 플라즈마는 낮은 기체압력, 높은 이온밀도 및 낮은 이온에너지 등의 특성을 가지고 있어 저손상, 미세회로 및 신소재 개발공정의 유력한 수단으로 인식되고 있다. 본 연구에서는 공명위치에 따른 N₂ECR 플리즈마의 전자에너지를 조사하였다. N₂ECR플라즈마의 전자에너지는 보통 28eV∼30eV정도를 나타내었으나 상단코일의 자기장이 강하고 하단코일의 자기장이 약한 경우 전자에너지는 약50eV로 크게 나타났다. 공명점의 갯수는 플라즈마 에너지에 기여하지 않는 것으로 나타났으며 이로부터 첫 번째 공명위치에서 대부분의 전자에너지 공명흡수가 발생함을 알 수 있었다. 하단코일의 자기장이 약한 경우 높은 전자에너지를 가지는 이유는 낮은 자기장에 의하여 반사된 초고주파가 다시 공명흡수에 기여하기 때문으로 풀이된다. ECR plasma, having its characteristics of low gas pressure, low ion energy and high ion density, has become one of useful means to research and development for new materials and microeletronic circuits with low loss. This study deals with the characteristics of N₂ECR plasma on the variation of ECR plasma energy with resonance positions. Especially, ECR plasma energy affected by the resonance positions has been investigated. Most of the electron energies of N₂ECR plasma with various resonance positions are recorded 28eV∼30eV. But in case of strong magnetic field in the upper side coil and weak magnetic field in the lower side coil, the electron energies are measured up to 50 eV. The number of resonance positions does not contribute to the plasma energy. This result implies the resonance absorption of the electron energy is generated mainly at the first resonance position. It is shown that the high electron energy appears when magnetic field in the lower side coil is weak. This makes it possible to deduce that the UHF microwave reflected by the weak magnetic field influences the resonance absorption again.

國際金融市場과 韓國의 進出方案

沈相弼 弘益大學校 1979 弘大論叢 Vol.11 No.-

대동맥 판막 치환술 후 반복되는 Acinetobacter baumannii 균혈증의 원인이 된 대동맥염 1예

정용필,김성철,송은희,장은영,김은경,김윤지,성흥섭,김미나,최상호,우준희,김양수 대한감염학회 2007 감염과 화학요법 Vol.39 No.3

감염성 대동맥염은 흔하지 않지만 매우 위중한 질병으로 Salmonella so.와 S. aureus가 주된 원인균이다. 아직까지 병원내 감염의 주요 원인균인 Acinetobacter baumannii에 의한 감염성 대동맥염은 보고된 바가 없었다. 저자들은 대동맥 판막 치환술을 시행받은 76세 남자 환자에서 적절한 항생제 투여에도 반복되는 A. baumannii 균혈증의 원인이 감염성 대동맥염으로 진단되었던 1예를 경험하였기에 보고하는 바이다. Infectious aortitis is an uncommon yet, life threatening disease. Early surgical treatment and prolonged antibiotic therapy is crucial to survival. Salmonella sp. and Staphylococcus aureus are the most common organisms isolated. There is no case report of infectious aortitis caused by Acinetobacter baumannii, which has recently emerged as a major cause of health care-associated infections. Here, we describe a 76-year-old male with infectious aortitis who experienced recurrent bacteremia due to A. baumannii in spite of adequate antimicrobial therapy after aortic valve replacement.

공기중의 Radon 방사능 측정에 의한 서울 대기의 혼합높이 결정

김의훈,김필수,김채옥,이건상,권기덕 漢陽大學校 環境科學硏究所 1985 環境科學論文集 Vol.6 No.-

서울 대기의 혼합높이를 1984년1월부터 4월 사이에 지표고도에서 측정한 ??으로부터 결정하였다. ?? 농도로부터 상당혼합높이를 계산하기 위하여 한 수식 모델을 개발하였다. 이로부터 계산한 상당혼합높이는 늦은 오후에 최고 및 밤 또는 이른 아침에 최저값을 가지며 수 십 미터에서 1킬로미터 또는 그 이상의 높이를 보이는 일변화를 나타냈다. 평균혼합높이는 겨울이 낮았다. 이와 같은 변화는 대기의 안정도, 일조시간, 기온 등 대기의 인자와 밀접한 관계가 있었다. The mixing heigt of the atmosphere in Seoul was determined from the measurement of ?? concentration in air at ground level for January 1984 to April 1984. In order to calculate the equivalent mixing height from ?? concentration, a mathematical model was developed. The equivalent mixing heights calculated from this model showed diurnal variation with the highest values in the late afternoon and the lowest during night hours or early morning ranging from several tens to one thousand meters or more. The average heights represented lower values in the winter. These variations were closely related to the atmospheric factors, such as atmospheric stability, daytime hour, and temperature, etc.

Phytochrome이 보리잎 Protoplast의 팽윤에 미치는 영향

홍경애,송성준,송필순,유장걸,문두길 제주대학교 방사능이용연구소 1986 연구보고 Vol.2 No.-

암조건에서 생육시킨 보리(Hordeum valgare)잎의 생장점 부근에서 분리한 Protoplast가 적색광 처리에 의해서 팽윤되었고 적외선광에 의해서는 적색광 효과과 소멸되었다. 이 사실은 Protoplast의 팽윤이 Phytochrome에 의해서 조절됨을 시사하는 것이나 Phytochrome의 작용기작을 알기 위해서는 다각적인 연구가 필요하다. 실험결과로 부터 적색광 처리시간은 2분 적색광 처리후 배양시간은 2시간이 적당함을 알았다. Protoplast 배양액의 Sorbitol 농도에 따른 크기변화는 농도가 낮을수록 커졌으며 0.4M 이하에서는 Protoplast가 파괴되었다. Light effect on the size of protoplasts isolated from etiolated barley leaves was studied. Red light irradiation caused a swelling of protoplasts while little change in size found under the dark condition. Photoreversibility by red light and far-red light was found in protoplast swelling, indicating the involvement of phytochrome. Action mechanism of phytochrome on protoplast swelling should be clarified in aspect of growth regulators and intermediates involved. Two minute irradiation time and two hour incubation after red light treatment were found sufficient to induce protoplast swelling. The protoplasts were swollen according to the sorbitol concentration of incubation media but destroyed below 0.4M-sorbitol concentration.

Glycatoin에 의한 단백질중합체의 가교구조의 탐색

신동범,홍상칠,신완철,윤성식,양융 한국노화학회 1992 한국노화학회지 Vol.2 No.1