다산부에서 자간전증의 임상적 고찰

이주롱,이석민,한효상,이해혁,이임순,이권해 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.2

목적 : 전자간증 산모에서 초임신부와 다산부 각각의 임상적 특징을 조사하여 비교 분석하고자 하였다. 연구방법 : 1998년 1월부터 1999년 12월까지 2년간 순천향대학 서울병원에서 입원 분만한 임신성 고혈압성 질환 환자중 초임신부 106명과 다산부 50명, 총 150명을 대상으로 임상통계학적으로 조사 분석하였다. 결과 : 분만까지 임신기간의 비교시 초임신부에서는 33-36주에서 17.9%였고 다산부에서는 34.0%로, 다산부에서 조기분만의 예가 의의있게 많았다. 신생아 체중이 2500g 미만인 군이 초임신부군에서는 36.8%였고 다산부군에서는 62.0%로 다산부군에서 더 많았다. 임신성 고혈압성 질환의 중등도를 보면 중증자간전증의 초임신부에서 35.8%와 다산부에서는 44.0%로, 초임신부에 비해 다산부군의 중증 자간전증의 비율이 많았다. 결론 : 중증 임신성 고혈압성 질환이 다산부군에서 더 많았으며 적은 주수에서 제왕절개술을 시행해 출생아의 체중이 초임신부군에 비해 더 작았고 Apgar 점수도 더 낮았다. Objective : To study the clinical differences of primiparous and multiparous preeclamptic patients. Methods : We statistically analyzed 106 primiparous and 50 multiparous preeclamptic patients who were admitted to the Soonchunhyang University Hospital from January 1998 to December 1999. Results : It was statistically found that multiparae were more likely to give premature birth than primiparae: Thirty four percents of multiparae gave birth in the period between the 33rd and the 36th gestational weeks while 17.9% of primiparae did in the same period. Sixty two percents of the newborn babies of multiparae weighed less than 2500g. Among primiparae, the ratio was 36.8%. In addition, more multiparae(44.0% vs. 35.8%) suffered from severe preeclampsia. Conclusion : severe preeclampsia was found more frequently among multiparae. Since they gave birth earlier by cesarian section than primiparae, their babies weighed less and had lower apgar scores.

들잔디 성숙종자로부터 캘러스배양 및 식물체 재분화에 미치는 몇 가지 요인의 영향

이상훈,김범수,원성혜,조진기,김기용,박근제,성병렬,이효신,이병현 Plant molecular biology and biotechnology research 2004 Plant molecular biology and biotechnology research Vol.2004 No.-

In an effort to optimize tissue culture responses of zoysiagrass (Zoysia japonica Steud.) for genetic transformation, factors affecting callus induction and plant regeneration were investigated. MS medium containing 3 ㎎/L 2,4-D was optimal for embryogenic callus induction from mature seed. The plant regeneration frequency of 73.3% was observed when embryogenic calli induced in this medium were transferred to N6 medium supplemented with 0.1 ㎎/L 2,4-D and 5 ㎎/L BA. Among several basic media, MS and N6 medium were optimal for callus induction and plant regeneration, respectively. Regenerated plants were grown normally when shoots transplanted to the soil. A rapid and efficient plant regeneration system established in this study will be useful for molecular breeding of turfgrass through genetic transformation.

집적화된 실리콘 압력센서의 출력전압 보상파라미터 추출 및 그 특성

이보나,김건년,박효덕,신상모,이경탁,김찬,권혁채,이상조,박현주 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1

An integrated silicon pressure sensor has been designed, fabricated and tested. The signal conditioning circuits were designed to include calibration and temperature compensation of output voltage through trimming of diffusion and ion-implanted resistors. Before trimming of resistors, the compensation parameters such as pressure sensitivity, temperature coefficient of pressure sensitivity, temperature coefficient of piezoresistors and pressure sensitivity of piezoresistors were measured. Then offset voltage, span, and temperature coefficients of offset voltage and span were calibrated by trimming of resistors. The measured output voltage met our design specification and simulation value above room temperature. But, the measured output voltage at -30°C deviated from our design specification and simulation value because the offset voltages were found to vary randomly as a function of temperature.

Novel Methylation Biomarker for Non-invasive Diagnostics in Lung Cancer

오태정,( Chang Hun Lee2 ),( Min Ki Lee ),( Yeul Hong Kim ),( Sang Yull Lee ),( Hyo Sung Jeon ),( Shin Yup Lee ),( Seung Soo Yoo ),( Jae Yong Park ),( Sung Whan An ) 대한결핵 및 호흡기학회 2012 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.114 No.-

To identify aberrantly hypermethylated DNA in lung cancer cells we established a genome-wide analysis for hypermethylation sites, namely Methyl DNA Isolation and Amplification (MeDIA) coupled-CpG microarray analysis. In the comprehensive methyaltion profiling analysis between human lung cancer, A549 cells and normal NHBE cells, we observed that several clusters of genes show a significant level of aberrancy in CpG island methylation pattern in cancer cells compared to normal cells. We further identified PCDHGA12 gene as a new marker of non-invasive diagnostics for lung cancer based on followings. 1) Transcription of PCDHGA12 gene is reactivated after treatment of A549 cells with demethylating agent. 2) Bisulfide clonal-sequencing reveals that CpG island of PCDHGA12 shows a distinctive differential methylation between two cell lines. 3) Pyrosequencing-based quantitative methylation assay for such region in tumor and non-tumorous tissues from lung cancer patients shows aberrant hypermethylation in 37 (92%) of the 40 tumor tissues. In clinical validation by pyrosequencingin induced-sputum of lung cancer patients (n=87) and healthy controls (n=51), we observed aberrant hypermethylation incident at significantly elevated level in samples derived from lung cancer patients. According to the optimal threshold calculated by ROC curve analysis, sensitivity and specificity of PCDHGA12 was 86.2% and 82.4%, respectively. PCDHGA12 methylation status could be a potential methylation biomarker alone or combined with others for the screen and the detection of relapse of lung cancer.

進饌儀軌(卷之三, 卷之四)

李盛雨,李孝枝 漢陽大學校 韓國生活科學硏究所 1986 韓國 生活 科學 硏究 Vol.- No.4

신경회로망 전 보상 PID 제어기에 의한 부하주파수제어

이오걸,김상효,정동일,주석민 동의공업대학 1999 論文集 Vol.25 No.1

In this paper, we propose a neural network precompensated PID(NNP PID) controller for load frequency control of 2-area power system. While proportional integral derivative(PID) controllers are used in power system, they have many problems because of high nonlinearities of the power system. Simulation results show that the proposed control technique is superior to a conventional PID controller and an optimal controller in dynamic responses about load disturbances. The proposed technique can be easily implemented by adding a neural network precompensator to an existing PID controller.

琵瑟山 山林植生의 群落構造

이중효,서승희,홍성천 慶北大學校 農業科學技術硏究所 2005 慶北大農學誌 Vol.23 No.-

Vegetation composition and structure of forest community at Mt. Bislsan, Dalseung-Gun, Daegu in Korea, were studied using a qualitative with a quantitative approach and its vegetation types and various ecological characteristics such as the importance values, species diversity of the major component species analyzed. The forest vegetation were classified into 2 community group, 14 community, 6 group, and total of 18 vegetation units. Pinus densiflora distributed mainly from lower at the sea level, while Quercus mongolica tended to distributed upper altitude in Physiognomical vegetation, the species diversity values showed mostly 0.8 and Quercus dentata, Quercus serrata and Cornus controversa Community and so on highly showed to 1.0 and 1.1 According to the results of importance value analysis, the I.V. of pinus densiflora and Quercus mongolica highly showed in the tree and subtree layer, and Rhododendron mucronulatum and Lindera obtusiloba and so on highly showed in the shrub.

마그네틱 베어링 타입 터보분자펌프 컨트롤러의 제작

이효종,이성준 한국기술교육대학교 2003 論文集 Vol.10 No.1

Turbo Molecular Pump(TMP) is a kind of vacuum pump for high vacuum applications, which is widely used in the semiconductor industry. Since TMP typically requires more than 30,000 rpm of rotational speed, magnetic bearing (MB) shows much better performance compared with the conventional mechanical bearing for TMP systems. MB holds its rotor without any mechanical contacts and it does not require any lubrication method. This makes MB adequate for ultra-high speed or clean environment applications like semiconductor FAB or aerospace industry. MB type TMP controller is organized with three parts, i.e., a MB controller, a motor driver, and a processor for controlling the whole system. We implemented a controller for a commercial TMP and succeeded to run the system up to 30,000 rpm of rotational speed.

獨逸의 現代 基督敎 詩人들

李孝祥 慶北大學校 1958 論文集 Vol.3 No.-

본문은 Grenz mann의 독일현대시의 제십칠장을 토대로 하여 저자가 후반과 기타 상당한 부분을 보충한 것이다. 현대론의 내부에는 기독교정신에 서 울어 나온 문학이 자기의 의의를 가지고 있는 영역이 친다. 명양각종의 세력이 대립되어 있는 시대에 있어서 기독교 시인들도 또한 자이의 사명을 가지고 일어 났다. 그들의 소리는 이세대에 있어서 비상히 위대한 힘을 가지고 있다. 이 것을 간과해서는 아니 된다.

초고진공 장치의 설계 및 제작과 LEED Optics에 의한 Auger Electron Spectrometer의 분해능 측정

이순보,박종윤,곽현태,부진효,이성용 성균관대학교 1992 論文集 Vol.42 No.2

A multipurpose Ultra High Vacuum chamber was designed and constructed in this laboratory. This enables us to be equipped with various analytical instruments such as Ar-ion gun LEED optics, Electron analyzer, and Quadrupole mass spectrometer etc. The 4-Grid LEED optics, a product of Omicron company in West Germany, was equipped with the UHV chamber and the LEED power supply was designed by this group. Turbo-C language figured out Auger spectra of the ad-species by means of the computer interface. The resolution of Auger electron spectrometer was measured with a constant primary electron beam energy. The results showed that the resolution was independent of the primary electron beam energy, but depends on the modulation voltage. Also, it was revealed that the resolution of 4-Grid optics was more improved than that of 3-Grid optics.