동일한 시료에 대한 국내 기관간의 STR 분석결과 비교 : STR 유전자좌 분석법의 표준화 설정을 위하여

박종태,신경진,양윤석,우광만,이숭덕,이승환,이정빈,정연보,조승희,한길로,한면수,홍승범 大韓法醫學會 2001 대한법의학회지 Vol.25 No.1

This paper described a collaborative exercise intended to see what kinds of short tandem repeat (STR) loci are used in different DNA typing laboratories in Korea and to compare their results for the demonstration whether uniformity of DNA profiling results from different laboratory could be achieved in Korea Laboratories were asked to test five tissue DNAs using methods routinely used in each laboratory and to report the results to the coordinating laboratory. The exercise demonstrated that each laboratory was using different STR loci for the typing with different STR numbers,2 VNTRS,36 STRs and amelogenin in total, and the direct comparison of the results from all the laboratory for the 18 loci could not be done as only one laboratory submitted typing results. Among 21 loci for which several laboratories submitted typing results, results for 14 loci were the same and results for the other 7 loci were different depending on the participating laboratory. D1S80, F13A01, D16S539, D21S11, D18S51, D3S1744 were the loci with different typing results. Even in the cases where commercial kits were used, the results were not the same depending on the machines used, that is the capillary electrophoresis or the gel based electrophoresis. The reason for the different results, points about the standardization of the methods arid the profiling data were described.

임신과 동반된 외음부 상피내 종양 1례

김윤숙,김미영,전섭,김종수,최승도,선우재근,배동한,오미혜 순천향의학연구소 2006 Journal of Soonchunhyang Medical Science Vol.12 No.2

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기포탑내에서 비뉴튼류의 기-액간 물질이동

윤영웅,김상렬,최일곤,한승완 東亞大學校 1992 東亞論叢 Vol.29 No.1

비뉴튼류인 CMC수용액중의 기체체류량과 용량액상물질전달계수를 분산판 구멍의 면적비와 용액의 물성에 따라 실험하였다. ε??와 K??a의 값은 CMC의 농도가 증가할 수록 감소하나 구멍의 수가 3∼8개 범위에서는 분산판의 구멍 면적비에 거의 영향이 없었다. 실험에 의하여 column에 적용될 수 있는 ε??와 K??a에 대한 식을 제안 하였다. The effect of properties of CMC-solution and area ratio of distributor hole on gas holdup and volu-metric liquid-phase mass transfer coefficient in a bubble column have been experimentally studied. The values of ε?? and K??a were decreased with increasing concentration of CMC and were scarcely affected by the area ratio of distributor in the range of the 3∼8 hole number. Correlations for ε?? and K??a were formulated from the experimental result.

결절성경화증 환자에서의 SPECT 뇌영상 : 예비적 연구 A preliminary report

한설희,이상수,정승연 충북대학교 의과대학 충북대학교 의학연구소 1991 忠北醫大學術誌 Vol.1 No.1

간질발작을 포함한 전형적인 삼징후가 동반된 결절성경화증 환자를 대상으로 뇌파검사, 뇌전산화단층촬영술 및 단일광자방출단층촬영술을 시행하였다. 뇌전산화단층촬영술에서는 상의하석회화병소와 조영제증강이 뚜렷하지 않은 피질에 연한 저음영 소견이 관찰되었으며 이어서 시행한 단일광자방출단층촬영술에서는 뇌전산화단층촬영술 소견보다 더 광범위한 부위에 관류결손이 관찰되었다. 단일광자방출단층촬영술은 결절성경화증 환자에서 간질발현 병소인 피질결절을 발견하는데 있어서 전산화단층촬영술 및 뇌파검사보다 더 유용한 방법이며 치료방침 결정이나 예후판정에 있어서도 큰 도움을 줄 것으로 기대된다. Two patients with a well-established diagnosis of tuberous sclerosis and epilepsies as their principal clinical symptom were examined by conventional surface electroencephalography(EEG), computed tomography, and single photon emission computed tomography(SPECT) using the 99mTc hexamethyl prophyleneamine oxime(99mTc-HMPAO). The interictal EEG showed various abnormalities of poor localizing value. Brain computed tomography surely demonstrated subependymal calcifications, although the cortical lesions were not so conspicuous. However, the SPECT images of each patient clearly demonstrated decreased cerebral perfusion in cortical areas. It may be assumed that such perfusion defect areas represent the epileptic cortical tubers or those of altered myelination, which are characteristics of the disease.

보리의 穗軸節數 및 護穎 遺傳과 聯關

윤승길,한옥규,안현진 안성산업대학교 1997 論文集 Vol.29 No.2

보리에서 광호영 및 수축절수의 유전양식과 이들 두 형질의 연관관계를 구명하여 양질 다수성 품종개량의 효율 제고를 위한 기초자료를 얻기 위하여 호영이 넓고 수축절수가 적은 Triple Bearded Club Mariout(T.B.C.M) 품종과 호영이 좁고 수축절수가 많은 특성을 가진 강보리를 교잡하여 이들의 양친과 F_1, F_2세대 5개 조합을 공시하여 실험한 결과는 다음과 같다. 1. 보리의 광호영은 단순 열성으로서 1쌍의 대립유전자에 의해 지배되었다. 2. 수축절수는 많은 것이 우성, 적은 것이 열성으로서 1쌍의 대립유전자에 의해 지배되었다. 3. 수축절수와 호영을 지배하는 유전자는 동일염색체내 연관되어 있으며, 조환가는 조합마다 다소 차이가 있으나 15.8∼18.0% 범위로 비교적 가깝게 좌위하고 있는 것으로 추정되었다. This experiment was conducted to obtain basic genetic informations which could be used for breeding of barley for better quality an high yield. The data for this study were obtained from cross among Triple Bearded Club Mariout(T.B.C.M) and five released varieties. T.B.C.M. has wide outer glume and a low number of rachis internode, while five released varieties has narrow outer glume and a high number of rachis internode. The parents, F_1 and F_2 lines resulted from cross among T.B.C.M. and five released varieties were studied in field experiment. And the inheritance modes of outer glume, number of rachis internode, and their linkage relationships were determined. The wide outer glume in barley was a simple recessive gene. High number of rachis internode is shown to dominate over low number of rachis internode. The genes for number of rachis internode and outer glume appeared to be linked closely. Based on recombination analysis, recombination values between two characters linked were 15.8~18.0% with some variation depending on varieties used.

기포탑 내의 중금속 수용액에 대한 기-액접촉면적과 물질전달에 관한 연구

한승완,김상렬,윤영웅 東亞大學校 1992 東亞論叢 Vol.29 No.1

기포탑 내에서 중금속 수용액에 대한 기체 체류량, 기포경, 기-액 계면적 및 액상 용량물질 전달계수를 용액의 물성과 분산판의 종류에 따라 실험하였다. 기체 체류량, 기-액 계면적 및 액상 용량 물질 전달계수는 기체 속도와 용액의 농도가 증가함에 따라 증가하는 경향을 보였다. 기포경은 용액의 농도가 증가하면 감소하였고 기-액 계면적과 기체 체류량 사이에는 직선 관계를 나타내었으며, 기체 체류량과 액상용량물질전달계수에 대한 새로운 무차원식을 구하였다. In the experiment of heavy metal solution in the bubble column, gas hold up, bubble diameter, gas liquid interface area and volumetric liquid phase mass transfer coefficient are measured according to liquid properties and various perforated plates. Gas hold up and gas liquid interface area increase as the gas velocity and liquid concentration increase. Bubble diameters decrease as the liquid concentra-tions increase. The gas liquid interface areas are directly proportional to the gas hold up. The new dimensionless correlations of gas hold up and the volumetric mass transfer coefficients are obtained.

비선형 웹 이송 시스템의 장력제어

윤석찬,백승훈,정진태,한창수 韓國工作機械學會 2000 한국생산제조학회지 Vol.9 No.5

This paper presents the study of the tension control in a web transfer system. In this study the sliding mode controller is applied to a time-varying nonlinear mathematical model. The model was derived to consider the effects of changing the roll rad;us in tension variation during winding and unwinding. The uncertainty in modeling may be due to unmodelled dynamics, on variations in system model. Designed sliding mode controller made the system error always staying in the suggested surface from the beginning. Through this, system is maintained to be robust against a disturbance and uncertainty. To verify the designed controller has a good performance, various inputs such as desired velocity, step input, and trapezoidal input are applied. When the sliding mode controller was used, the system(the tension control) performance was improved comparing to the PID controller. The robustness of the controller with respect to an estimation error was verified through simulations.

산전 태아사망 환자에서의 Mycoplasma hominis와 Virdans streptococcus감염 1예

김윤숙,문성택,전섭,김종수,최승도,선우재근,배동한 순천향의학연구소 2007 Journal of Soonchunhyang Medical Science Vol.13 No.1

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가시광을 이용한 ZnS/ZnO 상에서의 광촉매 반응에 의한 물로부터의 수소생성

서승광,윤필상,이한수,이호인 한국공업화학회 2003 응용화학 Vol.7 No.2

The pure ZnS can not absorb visible light because of its large band gap of 3.6eV. The ZnO/ZnS was obtained from partial oxidation of ZnS, and its band gap was 2.5eV where visible light can be absorbed. From XRD analysis, it was confirmed that only ZnO was formed during oxidation process but not ZnSO₄. In case of ZnO/ZnS, the quantum efficiency for the hydrogen evolution from water was 0.87% under visible light irradiation. In order to improve the interaction between ZnO and ZnS, ZnS/ZnO was prepared by precipitating ZnS on ZnO. After calcination of ZnS/ZnO, the band gap became narrow. The pure ZnO and the physically mixed ZnS-ZnO could not absorb visible light, but the ZnS-doped ZnO (ZnS/ZnO) could do. The band gap of pure ZnO was 3.2 eV and that of ZnS/ZnO was 2.5ev. The best activity was obtained when clcination temperature and time were 500 ℃ and 1 h, respectively. The quantum efficiency of ZnS/ZnO for the reaction was 3.29%.

RUS법에 의한 Micro-Crack을 가진 Ferrule의 주파수 특성 평가

백경윤,이길성,양순호,김성훈,조영재,민한기,양인영 朝鮮大學校 機械技術硏究所 2003 機械技術硏究 Vol.6 No.2

광섬유 정렬부품으로 사용되는 페롤은 극히 높은 정밀도를 요하는 제품으로서, 높은 치수 정밀도와 결함이 포함되지 않는 등 높은 신뢰성이 요구되는 제품이다. 이러한 페롤의 형상결함평가에 종래의 광학현미경 평가법과는 달리. 본 논문에서는 공명초음파법(ResonantUltrasound Spectroscopy)을 이용하고자 한다. 공명초음파법이란 결함이 없는 시험편을 기계적으로 진동시켰을 때의 공진 주파수와 시험편 내에 결함을 가지고 있을 때의 공명 주파수 양상을 비교 분석하여 결함유무를 검출해내는 방법이다. 본 연구에서는 양품과 크랙을 가진 시험편을 현장에서 직접 사용되고 있는 광학현미경에 의해 분류를 한 다음, 더욱 정확한 측정을 위해 SEM에 의해 다시 분류하였다. 각각에 대해 공진 주파수를 측정하였고, 이 데이터의 검증을 위해 FEM해석을 수행하였다. 실험으로부터 얻는 양품의 공진 주파수와 FEM해석을 통해 얻었던 양품의 공진 주파수의 오차는 1∼2%정도의 범위를 벗어나지 않음을 알 수 있었다. 또한 크랙에 대한 공진 주파수를 측정하여서, 양품의 공진 주파수와 비교를 행하였고, 이 데이터를 가지고 모드별로 히스토그램을 그려서, 그것으로부터 현장에서 실제로 이용 가능한 모드를 존재함을 확인하였다. The Ferrule which is used as the product optical fiber very precisely, is required high to set the optical axes of an dimensional precision, lack of defect and high expectation. Up to now the optical instrument has been used for the defect and shape inspection of the Ferrule, but in this paper we examined the detectable defect and expectation by using the Resonant Ultrasound Spectroscopy (RUS). The RUS is the measurement' which is to excite specimen and to inspect the difference of natural frequency pattern between acceptable specimen and specimen has some defects. In this paper, we classified specimens into three groups by using She optical instrument; acceptable specimen A-type, 3-type and specimen A-type which has crack. And we reclassified by Scanning Microscope to carry out the more exact measurement. We surveyed the resonant frequency of every specimen, and carried out the simulation from the explicit finite elements code, NasEran t o verify the experiment data. The average error between the resonant frequency of acceptable specimens which is obtained from experiment and that from FEM analysis is in the range of 1-2 percentage. Also, we measured the resonant frequency of specimen which has crack, and compared that of acceptable specimen. We drew histogram by using these data, and confirmed the available mode in the plant.