김치유래 젖산균의 균체지방산 분석을 이용한 분류학적 연구

이정숙,정민철,김우식,이근철,김홍중,박찬선,이헌주,주윤정,이근종,안종석,박완,박용하,민태익 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.2

표준균주를 포함한 230여개의 김치유래 젖산균에 대한 균체지방산(FAMEs)을 분석하였다. FAMEs profiles는 Euclidian Distance 17.5에 의해 7개의 Major Cluster와 1개의 Single Cluster로 나뉘어졌다. 이중 A, B, C 및 Cluster는 Leuconostoc속으로 분석되어졌고, F는 Lactobacillus속으로 분석되어졌다. 그리고 E와 G cluster는 두개의 Genus가 혼재되어 나타났으며 보충적인 연구가 필요하다. 앞으로 김치유래 젖산균의 균체지방산 분석결과를 기반으로 한 데이타베이스에 95가지 탄소원을 이용하는 수치분류학적 접근방법 및 Pyrolysis Mass Spectrometry 등의 화학적 분석 방법과 분자친화적 연구를 통한 종합적 분류정보 체계가 갖추어지면 젖산균의 신속, 정확한 동정 및 연구에 활발히 이용되어질 것이다. Two hundreds and thirty lactic acid bacteria, mostly isolated from Kimchi, including type strains were sued for analysis of cellular fatty acids. The 230 test strains were recoverd in 7 major and 1 single clusters defined a Euclidian distance of 17.5. These aggregate taxa were equivalent to the genus Leuconostoc (aggregate group A, B, C and D), and the genera Leuconostoc and Lactobacillus (aggregate group G). It is concluded as evident that FAMEs (Fatty Acid Methyl Esters) profile of cell can be used as a criterion in classification of lactic acid bacterial from kimchi. Additional comparative taxonomic studies need to be carried out on well chosen representative strains to determine the most appropriate methods of value.

시공간 부호화를 이용한 MIMO채널의 성능분석

정대훈,장은영,변건식 東亞大學校附設 情報技術硏究所 2004 情報技術硏究所論文誌 Vol.12 No.1

The randomness of the wireless environment degrades the system performance considerably. One of the effective techniques to mitigate the randomness is diversity techniques. The basic idea of diversity techniques is to transmit/receive multiple replica of the information through independent channels. In this paper, the time-space diversity is studied and simulated. Also character of SISO, MISO, SIMO, MIMO is studied and simulated.

블라인드 시공간 적응 배열 안테나

정대훈,장은영,노현민,변건식 東亞大學校附設 情報技術硏究所 2005 情報技術硏究所論文誌 Vol.13 No.1

In Mobile communication systems, it require a high speed transmission. But the performance of systems is bad according to a selective fading channel. Therefore we must estimate a channel environment. In this paper, we esimated a direction of arrival of the coming wave. Currently there is MUSIC algorithm in DOA estimation. But this technique is difficult to estimate DOA in real time because of time. This paper proposed a new method called Blind adaptive array Antenna. As a result, we verified the performance of system is superior in various channel condition using simulation.

고양이 중뇌 흑색질의 Dopamine 면역반응세포에 관한 면역세포화학적 연구

모근석,문정석,김종중,김준수,정윤영,장인엽,김흥중 대한해부학회 1996 Anatomy & Cell Biology Vol.29 No.5

건축설계과정에서 나타나는 협업프로세스에 관한 연구 : 파빌리온 설계사례를 중심으로

김정훈,김소희,임병민,김진아,송정화,오건수 남서울대학교 2007 남서울대학교 논문집 Vol.13 No.4

This study aims to deduce the effective collaborative process of architectural design process based on the specific pavilion design case. The study schematizes the collaborative procedure which is generated at the early stage of design process, analyzes the decision support system and suggests the method for reaching a compromise.Finally, this study suggested collaborative process method of architectural design and provided the basic concept that can be used for the similar projects. Keywords : Collaborative Design, Design Process

GPS 동기신호 수신기 개발을 위한 TIC 및 A/R 회로에 관한 연구

鄭圭泰,鄭永泰,金敏浩,洪成一,邊健植 東亞大學校 附設 情報通信硏究所 1995 情報通信硏究所論文誌 Vol.3 No.1

최근 과학기술의 발달로 인공위성을 이용한 정밀 위치 측정과 정밀 시각 측정에 대한 수용이 날로 증가하고 있다. 특히 정밀 시각 측정은 차세대 이동통신 기술인 CDMA의 핵심 기술로 매우 중요하게 인식되어 왔다. 현재 정밀 시각을 측정하기 위해서는 GPS위성 수신기 개발이 시급한 실정이다. 본 논문은 GPS 동기 신호 수신기를 개발하기 위한 TIC 및 A/R 회로를 개발하는 것으로서 GPS 위성의 1pps와 수신신호에 의한 1pps의 차를 ±1㎲이내로 좁히는 알고리즘 및 Hardware를 개발한 것이다.

폐 기능 검사에 의뢰된 환자에서의 공황발작의 빈도와 특성

정 건,고정선 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.6

연구 목적 : 저자들은 폐 기능 검사에 의뢰된 내과 환자들에서 공황발작의 빈도를 알아보고 공황발작과 불안의 민감도 그리고 폐 기능과의 연관성을 알아보려 하였다. 방 법 : 종합병원에서 폐 기능 검사에 의뢰된 대상자들에게 공황발작 설문지와 Beck의 불안검사, 그리고 특성 불안검사의 설문지를 작성케 하였다. 결 과 : 55명의 폐 기능 검사를 받은 대상자중 16명(29.1%)이 공황발작을 경험하였다. 공황발작을 경험한 집단이 경험하지 못한 집단보다 Beck의 불안 검사 점수와 특성 불안검사 점수가 모두 의미 있게 높았다. 폐기능검사 이상 유무에 따른 비교에서는 공황발작의 유병율에 의미 있는 차이가 없었고, Beck의 불안검사의 특성불안 검사에서도 의미 있는 차이가 없었다. 결 론 : 폐 기능검사를 받은 환자에서 공황발작의 유병율이 높았으나 이들환자들 중에서 적절한 정신과 치료를 받는 사람은 거의 없었다. 공황 발작은 불안의 민감도와 연관이 있었지만 폐 기능장애와의 연관이 없었다. Objectives : This research aims to measure the prevalence of panic attack among the internal patients who were referred to pulmonary function test and to ascertain the relationship of panic attack to the anxiety sensitivity and funker to pulmonary function. Methods : The research was conducted in a general hospital through the questionnaire survey. The patients completed the panic attack Questionnaire(PAQ), Beck's anxiety inventory (BAI), and Trate anxiety inventory. Results : Sixteen out of 55 case(29.1%) experienced panic attacks. The group who experienced the panic attack got significantly higher score in Berk's anxiety inventory and trate anxiety inventory than the group who didn't. But considering the result of pulmonary function test there was no meaningful relationship between the pulmonary function and the panic attack. And it was the same in the Beck's anxiety inventory and trate anxiety inventory. Conclusion : The patents who were referred to pulmonary function test were more likely to suffer the panic attack. But few received the proper treatment. The panic attack had relation with the anxiety sensitivity, but no relation with the pulmonary function.

개에서 발생한 신우신염 증례

유건우,이선희,임수정,박형진,김태신,송은식,송근호 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2009 動物醫科學硏究誌 Vol.16 No.1

A 6 years old Schunauzer dog (7.2kg, intact female) with history of hematuria for two days was referred to the Veterinary Medical Teaching Hospital of Chungnam National University. Complete blood cell count showed no significant abnormalities and serum chemistry profile showed increased phosphate profile. On urinanalysis, there was evidence of bacterial infection. On ultrasonographic evaluation, irregular renal contour and increased echogenecity, pelvic and uretral dilation, and thickening of urinary bladder wall were observed. Based on these finding, the dog was diagnosed as pyelonephritis. The dog was treated with antibiotics based on antimicrobial susceptibility test results, then successfully resolved after 8 weeks of treatment.

전기로 제강 제품군에 대한 전과정평가

정재수,이상용,김규형,이건모 한국전과정평가학회 2002 한국전과정평가학회지 Vol.4 No.1

국내에서 생산되는 전기로 제강 제품군에 대해 인료채취부터 제품생산까지에 대한 전과정평가를 수행하였다. 대상제품군은 형강, 봉강, 철근, 레일이다. 각 대상제품군별 국내생산량이 가장 큰 업체 2-3곳을 선정하여 전과정목록 데이터베이스를 구축하였다. 또한 전과정목록 분석결과를 토대로 대상제품군별 환경영향평가지수를 산출하였다. 환경영향평가지수는 형강, 봉강, 철근, 레일이 각각 5.05E-05, 1.22E-04, 5.36E-04, 4.25E-05으로, 봉강의 환경영향이 형강에 비해 약 2.4배가량 높다. 대체적으로 지구온난화 범주에 미치는 환경영향이 매우 큰 것을 조사되었으며, 원인을 찾기 위해 제품 생산 단계를 세분하여 CO₂ 분석을 수행하였다. Life Cycle Assessment has been conducted from raw material acquisition to manufacturing for Electric Arc Furnace Steel products manufactured in Korea. The product category under investigation included steel sections, round bars, deformed bars and rails. Two or three major manufacturing companies were chosen for each product category in establishing life cycle inventory database. Eco-indicator for each product category was calculated based on the life cycle analysis results. The eco-indicators of steel sections, round bars, deformed bars and rails were 5.05E-05, 1.22E-04, 5.36E-04 and 4.25E-05 respectively - environmental impact caused by round bars is approximately 2.4 times grater than by steel sections. The main impact category for the most products is global worming in accordance with the result of LCA. Therefore, CO₂ analysis was conducted to identify the most contributing activity to global worming category.

소금이 마우스에서 고형암의 성장과 면역활성 및 지질과산화에 미치는 영향

정근옥,이강윤,이성갑,박건영 부산대학교 김치연구소 2002 김치의 과학과 기술 Vol.8 No.-

There are several types of salts, which are classified into raw salt (Chunil salt, CS), purified salt (PS) and processed salts (Gueun salt, Bamboo salt) in Korea. Gueun salt (Gs) is made by baking CS in the ceramic vessel at 800℃. Bamboo salt (BS) is produced by baking CS, bamboo and mud in an oven at 1,300℃. In this study, effects of these salts on tumor formation, NK (natural killer) cell activity and lipid peroxidation in kidney and heart were investigated in the sarcoma-180 cell transplanted mice. Sarcoma-180 cells were transplanted subcutaneously into the left groin of Balb/c mice. Then, various kinds of salt, including 1 time heat treated KCI mixed BS-A (CS : KCI =3:7)and B (CS : KCI = 5:5), supplemented diet at concentrations of 10% were fed for 21 days from 24 hours following transplantation. The body weight decreased when 10% salt added diet was fed to the sarcoma-180 cell treated Balb/c mice. The body weights of CS, PS and treated groups were lower than their initial weights (19 ~ 20 g). Spleen and liver index were lower in the mice administered PS and GS than sarcoma-180 cell treated control group. KCI mixed BS-A and B reduced the content of malondialdehyde (MDA) in the kidney and heart that increased by the injection of sarcoma-180 cells. The feeding of PS in the diet increased the levels of MDA in the kidney and heart of sarcoma-180 treated mice compared to the control group. These results exhibited that KCI mined BS could suppress.