간척지에서 옥수수 나방류 해충 3종의 발생소장

이휘종,최원영,김상열,서종호,황정동,오성환,정진교,김주일,구현나,김길하 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.2

Occurrence of three troublesome lepidopterous pests, Ostrinia furnacalis, Helicoverpa armigera and Pseudaletia separata in corn cultivation of the reclaimed land were recorded using sex pheromone traps from 2012 to 2014. In case of O. furnacalis adult, two generations were observed in a year and its occurrence pattern was very regular. The 1st generation showed the highest occurrence in late May-early June and the 2nd generation was in late July-early August. On the other hand, H. armigera occurred at least three times a year but its occurrence was somewhat irregular. H. armigera adult showed the highest occurrence in mid May, late June, early August, respectively in 2012 but their occurrence patterns of the 2nd and 3rd generations were varied in 2013 and 2014. In case of P. separata, a few number of adult were captured during the survey period, indicating few number of P. separata migrated from China. Based on the control effect of O. furnacalis by Etofenprox and Carbofuranin 2012, June 26 treatment showed the highest control rate with 96.8% for Etofenprox, 85.8% for Carbofuran, respectively. Late treatment at June 19 and June 26 significantly decreased the control rate of O. furnacalis and June 26 treatment showed the lowest control rate of 1.9% for Etofenprox. 18.1% for Carbofuran, respectively.

하악 전돌증을 동반한 안모 비대칭 치험 3례

이재휘,배정수,장동수 동국대학교 경주대학 1993 東國論集 Vol.12 No.-

These is facial asymmetry in most people, to a certain degree. In its severe case, especially facial asymmetry with mandibular prognathism, improvement of esthetic problem as well as decreased functional masticatory efficacy due to malocclusion are important. It is widely accepted that the facial asymmetry occurs primarily at mandible, compensatory maxillary movement occurs secondary. Therefore, as trying analysis and classification of facial asymmetry, there is the primary concern on the mandible. Particular methods are used for evaluation of all patient with facial asymmetry as following ; clinical visual exammintion, lateral and P-A cephalometric analysis, submentovertex view, scintigram, cast analysis, and face-bow transfer. We experienced 3 cases of facial asymmetry with mandibular prognathism complaining of facial asymmetry and mastication difficulty. Through preoperative orthodontic treatment, orthognathic surgery, and postoperative orthodontic treatment, we achievd esthetic and functional good result.

다발성골수종의 형태학적 분류 및 임상 소견에 관한 연구

김휘준,이동화,이성희 순천향의학연구소 1996 Journal of Soonchunhyang Medical Science Vol.2 No.1

1984년 1월부터 1992년 12월까지 9년간 순천향대학병원에서 다발성골수종으로 진단된 28명의 환자를 대상으로 임상 검사 소견 및 생존 기간을 분석하고, 골수천자도말에서 형질세포 분화 정도에 따른 형태학적 분류를 하고, 골수생검상 형질세포 침윤 양샹에 따른 분류를 한 후 이와 같은 분류가 임상 경과 및 예후와 어떤 관련이 있는지를 알아 보았다. 1. 골수천자도말에서 형질세포 분화 정도에 따른 분류를 하여 mature형과 immature형을 비교한 결과 진단 당시 임상 및 혈액학적 변수들간에 유의한 차이는 없었다. 2.골수생검상 형질세포 침윤 양상에 따른 분류를 하여 diffuse형과 packed형 을 비교한 결과 진단 당시 임상 및 혈액학적 변수들간에 유의한 차이는 없었다. 3. 위와 같은 분류가 예후 추정인자로서 의의가 있는지를 알아 보기 위해 평균 생존율을 구해 보았으나 유의한 차이는 없었다. 이상과 같은 결과는 본 연구의 증례가 너무 적었고, 처음 진단이 늦었으며 대부분의 환자가 고령이어서 일찍 치료를 포기한 이유로 생각되며, 추후에 더 많은 증례에 대한 연구가 계속되고 환자에 대한 교육을 실시하여 추적 관찰을 계속한다면 위와 같은 분류 방법이 다발성골수종의 예후를 추정하는데,유용한 지표로 사용될 수 있으리라 사료된다. The maturity of myeloma cells in the bone marrow aspirates and the pattern of infiltratin in the biopsy are known to be highly significant in predicting the prognosis. This study was performed to analyse clinical. hematological, and morphological features of the bone marrow smears and biopsy in multiple myeloma at the time of diagnosis and investigate the correlation between clinical and pathologic findings for the evaluation of survival rate. The subjects for the study were 28 cases of multiple myeloma from January 1984 to December 1992 diagnosed at Soonchunhayang University Hospital. There were no statistical differences between clinical parameters and cell types and pattern of infiltrating in the bone marrow. And there were no statistical differences in survival rate depending on the cell types and pattern of infiltration pattern in the bone marrow. Above findings seemed to be resulted from insufficient subjects and failure of complete follow-up study. However, if a cooperative study of the impact of morphological classification in myeloma is performed in the future, morphological classificatin of myeloma could be considered as a prognostic factor.

RAPD 다형성 및 ABO 유전자형 분석을 통한 사상체질간 유전적 거리에 관한 연구

이휘철,조동욱,조중호,이창수 건국대학교 자연과학연구소 1999 建國自然科學硏究誌 Vol.10 No.2

본 연구는 사상체질인 태음인, 소음인 그리고 소양인간의 유전적 상관관계를 Random Amplified Polymorphic DNA(RAPD) 분석법 및 ABO 유전자형의 대립유전자의 빈도 분석을 통하여 실시하였다. 체질간 DNA 다형성을 검출할 수 있는 RAPD 분석용의 primer의 빠른 선별을 위해 체질별 혼합된 DNA 시료를 분석에 사용하였다. 일차적으로 200종류의 RAPD primer로부터 다형성을 보이는 7종류의 primer를 선별하였다. RAPD밴드로터 체질간 bandsharing(BS) 값은 0.68에서 0.71범위에 있었고, 유전적 거리는 BS 값에 의해 구했다. RAPD의 BS값에 의한 태음인과 소음인간 유전적 거리는 0.002이고, 이 두 체질과 소양인간에는 0.005로 분석되었다. 또한 체질별 ABO 유전형을 조사하여 그들의 대립유전자 빈도를 추정해 체질간 유전적 거리를 산출했다. 그 결과 태음인과 소음인사이에 유전적 거리는 0.014이고, 소양인과 나머지 두 체질간에는 0.032였다. 위와 같이 RAPD 분석법과 ABO 대립유전자의 빈도분석에 의한 체질간 상관관계는 두 방법 모두에서 태음인과 소음인이 소양인 체질보다 유전적으로 더 가깝게 나타났다. This study was carried out to be establish genetic understanding of Sasang constitutions of Teaumin, Soumin and Soyangin by Random Amplified Polymorphic DNA(RAPD) and ABO alleles frequencies analysis. We have applied RAPD analysis to pooled DNA sample as a means to achieve rapid screening of large numbers of primers for their capacity to reveal constitutions-specific polymorphisms. From initial 200 primers, 7 polymorphic primers between different constitutions were selected. The RAPD bandsharings(BS) values ranged from 0.68 to 0.71 for between three constitutions. The genetic distance between three constitutions was measured by BS values. Genetic distance by RADP analysis was 0.002 between Teaumin and Soumin, and 0.005 between Soyangin and the others. Three Sasang constitutions were investigated by the genotyping of ABO genotypes, and genetic distance was calculated from ABO allele frequencies in each constitution. As a result, genetic distance was 0.014 between Teaumin and Soumin, and 0.032 between Soyangin and the others. In conclusion, the genetic distance of Teaumin and Soumin was closer than that of Soyangin in the analysis of RAPD and ABO alleles frequencies.

다중 문턱전압 CMOS를 이용한 저 전력 캐리 예측 가산기 설계

김동휘,김정범 강원대학교 정보통신연구소 2007 정보통신논문지 Vol.11 No.-

This paper proposes a low-power carry look-ahead adder using multi-threshold voltage CMOS. The designed adder is compared with conventional CMOS adder. The propagation delay time is reduced by using low-threshold voltage transistor in the critical path. Also, the power consumption is reduced by using high-threshold voltage transistor in the shortest path. Comparing with the conventional CMOS circuit, the proposed circuit is achieved to reduce the power consumption by 14.71% and the power-delay-product by 16.11%. This circuit is designed with Samsung 0.35㎛ CMOS process. The validity and effectiveness are verified through the HSPICE simulation.

소규모사업장 용접근로자들의 소음·용접흄·망간 노출에 관한 연구

김동구,문덕환,이채관,박명희,함성애,손병철,김대환,이창희,김휘동,이채언 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.5

Objective : This study was conducted for the purpose of investigating the level exposure of welders to noise, welding fume and Manganese(Mn) related to this process. Methods and Material : All subjects in this study were welders engaged in CO2 arc and coated arc welding process especially in small-scale enterprises classified by type of manufacture of ship building, repairing and of other fabricated metal products, which is located in Gimhae and Milyang of Kyeongsang province in south Korea. Air sampling of welding fume was measured, shipped and analyzed on the basis of national institute for occupational safety and health(NIOSH) method in U.S. and work environment measurement method established in south Korea. To measure Noise in the work environment, Noise dosimeter was used on the basis of work environment measurement method established in south Korea. Result : This study was performed during a period from January, 2000 to December, 2001 and Results were as follows: 1. Noise level measured in this work environment was higher than national criteria for permissible exposure limit on health examinations related to hearing loss. 2. The concentration of welding fume and Mn in manufacture of ship building and repairing was higher than those in manufacture of other fabricated metal products. 3. In conditions of existing in ventilation system installed and operated, the concentration of welding fume and Mn was slightly lower than those of not existing. 4. In conditions of existing in sufficient air supply from out door into the work place relied on natural exhaust system, the concentration of welding fume and Mn was slightly lower than those of in not sufficient. 5. In all subjects, a rate of wearing ear plug and respiratory mask for dust and fume was lower than that of not wearing. Conclusion : According to above results, this study suggests that more positive work environment managements such as the use of portable local ventilation system, the supply of highly qualified personal protective equipment, and consecutive education and training related to health protection should be need to acquire suitable health protection program for welders engaged in small-scale enterprises in Korea.

여고 무용수와 일반학생의 신체특성, 심폐기능 및 요추 골밀도 비교

서동휘,변재철 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.3

The purpose or this study was to compare body composition, circumferences, VO₂max, HRmax and lumbar bone mineral density(BMD) in Korean dancers, Modern dancers, Ballet and non-dancers. Twenty four females who are aged 16-17years participated in it. Measured items for this study were body composition, circumferences, VO₂max, HRmax and lumbar(L2, L3, L4) bone mineral density. All data were analyzed by One-way ANOVA of SPSS accepting level for all significances was above p<.05. In this study, there were no significant differences between groups on the body composition, circumference, HRrest, HRmax, and lumbar BMD were except VO₂max, On the other hand, Korean dancer group was the lowest level in BMD among groups but it has no significance.

Complication rates in patients using absorbable collagen sponges in third molar extraction sockets: a retrospective study

Hoon Cho,Hwi-Dong Jung,Bok-Joo Kim,Chul-Hoon Kim,Young-Soo Jung 대한구강악안면외과학회 2015 대한구강악안면외과학회지 Vol.41 No.1

Objectives: The purpose of this study is to retrospectively evaluate the postoperative complication rates for absorbable type-I collagen sponge (Ateloplug; Bioland) use in third molar extraction. Materials and Methods: From January to August 2013, 2,697 total patients undergoing third molar extraction and type-I collagen sponge application in the Department of Oral and Maxillofacial Surgery at Yonsei University Dental Hospital (1,163 patients) and Dong-A University Hospital (1,534 patients) were evaluated in a retrospective study using their operation and medical records. Results: A total of 3,869 third molars in 2,697 patients were extracted and the extraction sockets packed with type-I collagen sponges to prevent postoperative complications. As a result, the overall complication rate was 4.52%, with 3.00% experiencing surgical site infection (SSI), 1.14% showing alveolar osteitis, and 0.39% experiencing hematoma. Of the total number of complications, SSI accounted for more than a half at 66.29%. Conclusion: Compared to previous studies, this study showed a relatively low incidence of complications. The use of type-I collagen sponges is recommended for the prevention of complications after third molar extraction.

Swaging에 의한 Autofrettage 加工의 有限要素解析

李澤淳,金東燮,李輝遠 영남대학교 공업기술연구소 1984 연구보고 Vol.12 No.1

Elastic-Plastic stress analysis has been carried out on an auto-frettage processed cylinder by mechanical push swaging. The analysis using finite element method was based on the incremental stress-strain relationship at the von-Mises yielding criterion and Prandtl-Reuss hypothesis in a axially symmetric plain stress condition. By this method, not only permanent enlargement of inner bore diameter but also residual stress distribution was calculated as a function of mandrel diameter. In consequence, enlargement of an autofrettage processed cylinder has good agreement between theoretical and experimental results. Thus, in autofrettage process the bore size and residual stress can be predicated using this method.

최소제곱법을 이용한 4개의 CSL 검측공 위치 결정

김진후,김동휘 東亞大學校 海洋資源硏究所 2006 硏究論文集 Vol.18 No.-

When four boreholes are installed in the cast-in-place pile, coordinates of the boreholes are obtained by using a least squares method, utilizing six hole-to-hole distance measurements. In addition, most probable values of hole-to-hole distances are calculated with coordinates of the boreholes. With the knowledge of borehole coordinates sound velocity of the pile can be obtained more accurately, and the cross section of the pile can be drawn with the drawing program easily. Also, coordinates of the boreholes would be very useful when a horizontal tomography technique is applied for integrity test of the cast-in-place pile.