접지선 굵기 산정방식에 관한 연구

崔洪圭,崔秉淑,宋榮柱 홍익대학교 산업기술연구소 2003 産業技術 Vol.13 No.-

Ground wire must choose enough sectional area of conductor endurably in maximum fault current, fault duration time, maximum allowable temperature and have strong durability and life-time can bear enough from spontaneous corrosion or electrolytic corrosion and must choose material that problem does not exist electrically and mechanically when connection or junction. In this paper, modeled new ground wire size numerical formula, and examine and compare of modeled numerical formula and abroad regulation, and proved and analyzed validity of the new ground wire size computation method because do simulation to computer program.

접속방법에 따른 접지도체 굵기 제안식

崔洪圭,吳廷錫,宋榮朱 弘益大學校 産業技術硏究所 2004 産業技術 Vol.14 No.-

접지도체의 굵기를 결정하는 국외 규격은 재료의 특성값인 물리적 정수까지 적용하여 광범위하게 적용할 수 있는 반면 수식이 복잡한 문제점이 있고 JIS와 국내규격은 수식은 간단하나 제약조건이 많은 문제점이 있다. 또한, 접지도체의 접속방법에 따라 최대허용온도가 다르게 적용되므로 접지도체 굵기 산정 방식이 복잡하고 적용 방법이 상이하여 시공현장에서 엔지니어들이 적용하는데 많은 어려움이 있다. 따라서, 본 논문에서는 새로운 접지도체 굵기 산정방식을 제시하고 접속방법에 따른 접지도체 굵기 산정 간이식을 제시한다.

PCR-RFLP 분석에 의한 무의 자가불화합성 유전자의 비교

최장선,김영호,강권규 안성산업대학교 2002 論文集 Vol.33 No.-

Self-incompatibility of Raphanus sativus is controlled by a single multi-allelic locus(S locus), which contains at least two highly polymophic genes expressed in the stigma: an S glycoprotein gene(SLG) and an S recetor kinase gene(SRK). The putative ligand-binding domain of SRK exhibits high homology to the secretory protein SLG, and it is believed that SLG and SRK form an active receptor kinase complex with a self-pollen ligand, which leads to the rejection of self-pollen. Among fifty-one inbred lines of R. sativus, fourteen S haplotypes were identified on the basis of DNA polymorphisms detected by PCR-RFLP analysis using SLG and SRK specific primer. PCR amplification was detected band in SLG 1.1~1.2Kb, SRK Ⅰ 0.8~0.9Kb, SRK Ⅱ 1.2~1.3Kb by analysis of the agaros gel electrophoresis. All different S genotypes showed different profiles in agarose electrophoresis, after digestion with restriction endonucleases. The nucleotide sequences of the fragments of these fourteen R. sativus SLG and SRK alleles were determined. Degree of similarity of the nucleotide sequences to a Brassica SLG and SRK ranged from 87% to 94%. Amino acid sequences deduced from these show about 50-55% homology to the putative amino acid sequences of SLG and SRK.

기능성 소화불량증에서 증상에 따른 고형식의 반위배출시간의 차이

김영호,이풍렬,성인경,손희정,김재준,고광철,백승운,이종철,최규완 大韓消化器病學會 1998 大韓消化器病學會誌 Vol.32 No.3

패스트푸드점 서비스품질과 재구매의도의 결정요인에 관한 업체 간 비교연구

全永鎬,崔文摫 홍익대학교 과학기술연구소 2006 科學技術硏究論文集 Vol.17 No.-

In Korea, the number of family restaurants and fast food restaurants have increased rapidly. In particular, as the food service industry becomes large-scaled and organized, those restaurants are dominated by large capital group. The objective of this study is to conduct evaluation and investigation of fast food restaurants at the point of service quality. The evaluation criteria of service quality were identified for the customers to assess the fast food restaurants in an attempt to find the determinants of service quality affecting customer satisfaction. Factor analysis, t-test and multiple regression analysis were applied to 256 survey data. In conclusion, coefficient of correlation of the customer satisfaction and service quality were very high.

관동맥풍선시술중 혈전동반 병변에 대한 구조치료(Rescue Utilization)로서의 Abciximab(ReoPro^(�)의 효과

두영철,채경수,최종형,허필석,송관욱,홍경순,박대균,한규록,오동진,유규형,임종윤,고영박,이광학,이영 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.12

Watershed 문자 영상 변환에 관한 연구

이호준,최영규,이상범 단국대학교 2001 산업기술연구 Vol.2 No.-

Watershed algorithm has been used to extracting the boundary of image. Watershed algorithm has the structure of four steps and has many varieties. The result of watershed algorithm differs according to each structure of watershed algorithm. Also performance time differ according to other method in each steps of watershed algorithm. Numbers of Minima are associated with performance time of watershed algorithm and are influenced quality of the result. In this paper, we applied watershed algorithm to watershed character image transformation. In character image, watershed algorithm has problem of over-segmentation. Over-segmentation is increased in performance time and has low quality of the result. In problems, we are constructed watershed algorithm effectually. These are decreased in performance time and have high quality of the result. Besides Over-segmentation has not. In this paper, watershed character image transformation was managed the boundary which contains noise. This image has histogram values, which are managed effectively by image. In this experiment, we have been estimated for performance time and quality in image. Performance time of this paper method is decreased many time. While this paper is removed noise effectively which is in the part of overlap stroke.

한의진단명과 진단요건의 표준화 연구 II (표준화 실례) : 2차년도 연구결과 중간 보고

양기상,최선미,최승훈,안규석,박경모,박종현,김성우,신승호,정우열,전병훈,고현,김정범,신상우,김성훈,김동희,권영규,엄현섭,장혜옥 한국한의학연구원 1996 한국한의학연구원논문집 Vol.2 No.1

The diagnostic requirements were suggested and explained regarding the systems of differentiation of symptoms and signs in the second year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows; - differential diagnosis according to condition of body fluid, differentiation of syndromes according to the state of qi and blood, differential diagnosis according to relative excessiveness or deficiency of yin and yang(氣血陰陽津液辨證) - differentiation of diseases according to pathological changes of the viscera and their interrelation - analyzing and differentiating of febrile diseases in accordance with the theory of the six channels(傷寒辨證) The individual diagnosis pattern was arranged by the diagnostic requirements in the following order : another name(異名), notion of diagnosis pattern, index of differentiation of symptoms and signs(辨證指標), the main point of diagnosis, analysis of diagnosis pattern(證候分析), discrimination of diagnosis pattern(證候鑑別), a way of curing a diseases(治法), prescription(處方), herb in common use(常用藥物), diseases appearing the diagnosis pattern(常見疾病), documents(文獻調査). This study was carried out on the basis of the Chinese documents and references.

지도 정보의 계층적 추출에 관한 연구

이상범,최영규 단국대학교 2000 論文集 Vol.35 No.-

In order to recognize map images automatically and make them in the form of Data Base, hierarchical classification and recognition of various information should be done. In this paper, a method with which map information can be efficiently extracted is proposed where map image is hierarchically classified by each component and those components are supplemented with the use of structural characteristics of each component. The proposed method extracts map information using mixed method among image structure analysis methods. First, character, block and road areas are classified hierarchically from the map image using bottom-up method, and by top-down method character and block areas are supplemented to be appropriate for recognition using structural characteristics of each component. For the evaluation of the algorithm, a map of 1:3,000 is used. It's been confirmed that each component can be efficiently extracted and extracted information make them in the form of Data Base have been confirmed recognition using neural network.

모 제약회사 근로자들의 직업성 천식 유병률과 약제 분말 노출수준

오성수,최용휴,김은아,이영목,장재길,유장진,박승현,김태균,정수영,김규상,강성규 大韓産業醫學會 2006 대한직업환경의학회지 Vol.18 No.2

목적: 제약회사에서 직업상 천식의 유병 규모를 파악하고 작업공정에 대한 작업환경 측정을 통해 제약회사의 약제 분말에 대한 노출수준을 평가하고자 하였다. 방법: 제약회사에서 약제 분말에 노출되는 근로자를 대상으로 천식을 선별하기 위하여 설문조사 및 진찰, 혈액검사, 폐기능 검사 그리고 피부단자시험을 실시하였고, 각 부서별 공정에 따라서 총분진과 항생제 또는 효소제 분말에 대한 작업환경 측정을 실시하였다. 직업상 천식이 의심되는 근로자에 대하여 기관지과민성에 대한 검사(메타콜린을 이용한 비특이 기관지유발시험)와 약제 분말 기관지유발시험을 실시하여 확진하였다. 결과: 설문조사 및 진찰에서 작업 관련 천식 증상이 있는 근로자는 11명(34.4%)이었고, 약제 분말을 이용한 피부단자시험에서 1+ 이상 반응을 보인 근로자 10명(31.2%)이었다. 비특이 기관지유발시험 결과 8명(25.0%)이 양성(PC20 ≤16 mg/ml)이었다. 약제 분말 기관지유발시험을 통해 직업상 천식으로 확진된 근로자는 5명(15.6%)이었다. 작업환경 측정에서 원료를 충진하거나 투입하는 작업 그리고 정립작업에서 약제 분말에 대한 노출이 많았다. 결론: 제약회사에서 직업상 천식은 주로 제조공정 중 약제 분말에 노출된 근로자에서 발생하여, 증상 및 직업성 천식의 유병률이 높았다. 따라서 원료를 충진 또는 투입하는 작업과 정립작업 등 제조과적에서 약제 분말 노출을 줄이기 위한 세심한 주의가 필요하여, 약제 분말을 취급하는 근로자에 대해서는 천식 증상 조사뿐 아니라 정기적으로 피부단자시험, 비특이 기관지유발시험 등을 실시하여야 할 것이다. Objectives: After the investigation of one worker with occupational asthma, we surveyed the preva- lence of occupational asthma and the exposure level of pharmaceutical dust of 32 workers in a pharmaceutical company. Methods: Thirty-two of the 90 employees participated in the survey which consisted of questionnaire, blood sampling, spirometry and skin prick tests with 8 common allergens as well as 9 antibiotics and 2 enzymes. Various indices of the working environment were also measured. Subjects who had a symptom suggestive of work-related asthma or positive skin prick test were further investigated by PC20 methacholine. Nine subjects who had a PC20 result of 16 mg/ml or less (n=7) or had work-related symptoms and positive skin prick test (n=2) were referred to undergo a specific bronchial provocation test to phar- maceutical dust in an academic allergic disease center. Results: Eleven of 32 workers (34.4%) had a work-related symptom suggestive of occupational asthma. Ten (31.2%) showed positive skin prick test. 8 (25.0%) had a PC20 result of 16 mg/ml or less (indicative of significant bronchial hyperresponsiveness), and 5 (15.6%) had a positive result on the specific bronchial provocation test. Exposure levels of stuffing, input of raw materials and screening process were relatively high. Conclusions: This survey showed that pharmaceutical workers have an increased risk of occupational asthma. Although pharmaceutical factories maintain a relatively good working environment, careful control of respiratory tract exposures, especially during stuffing, input or raw materials and screening process, is important to prevent occupational asthma. Pharmaceutical workers need to undergo regular skin prick and methacholine bronchial provocation tests, as well as asthmatic symptom survey, to ensure the early detection and prevention of occupational asthma.