변형된 측경부 전진피판술을 이용한 익상경 기형의 교정

신명수,박철규 大韓成形外科學會 1991 Archives of Plastic Surgery Vol.18 No.1

Pterygium colli is a congenital malformation characterized by bilateral webbing of the neck extending from the mastoid to the acromion. The etiology of the webbed neck deformity is variable which include chromosomal abnormality, congenital disease and jugular lymphatic obstruction sequence. Aims of the surgical correction is to create a normal neck contour with a symmetrical posterior hairline while avoiding obvious scarring especially on the anterior and lateral neck. We used modified lateral cervical advancement technique for the correction of 3 cases of webbed neck deformity. All scars lie within or along the hairline and extend onto the posterolateral shoulder area. And this modification also provided natural hairine and neck controur. We can avoid tension suture and vertical suture line for the prevention of scar spreading by this medthod. There was no recurrence of neck deformity during 6 month to 2 year follow up period.

동기 발전기의 디지털 차동보호 알고리즘에 관한 연구

박철원,신명철 成均館大學校 科學技術硏究所 1994 論文集 Vol.45 No.2

This paper describes an on-line digital computer differential protective relaying scheme of stator windings of synchronous machines. The used protection technique consists of differential protection with modified cross-correlation filter and other relay algorithm. The relay algorithm compares the average values of the fundamental frequency components of the differential and sum currents, which are obtained from both line and neutral ends of the stator winding. This filter uses the real parts alone for extraction of fundamental frequency components from highly distorted by the transient phenomena accompanying a fault. And its eliminates multiplications and reduces the computation requirements. The efficacy of this scheme has been evaluated by simulation. Test results by proposed digital technique are reliable and gratifying.

영광 원자력발전소 3,4호기의 계통 병입에 따른 전력계통의 안정도 해석

박철원,권명현,김철환,신명철 成均館大學校 科學技術硏究所 1994 論文集 Vol.45 No.2

This paper deals with consideration for transient stability of power system The analysis of transient stability is very important because it detects the possibility of large scale outage by system collapse caused system configuration change and load unbalance. Two units YGN 3&4 will be connected to the YGN 1 & 2 switchyard through two 345KV circuits until 1996 because of the nuclear power plant construction according to power demand increment. Therefore it is necessary to study stability analysis, fault capacity calculation and power flow problem in assumption of two units YGN 3&4 operation interconnected with the power system Finally, considerations of the effect of interconnection and the establishment of preservation methods for reliability of stable opration of the power system are included in this paper.

성인간호학회지 논문(1989-2000)의 내용과 경향 분석

서문자,김소선,송미순,이명선,오의금,신경림,김옥수,이숙자,이영자,오효숙,정재심,김철규 성인간호학회 2001 성인간호학회지 Vol.13 No.4

"Journal of Korean Academy of Adult Nursing" has been published since 1989 and more than 330 articles have been published up 2000. We reviewed all the articles published in this journal to analyze the contents and trend of published articles and to find out the way of improvement both in quantity and quality of studies in this area. The results are as follows : 1) Ninety percent of articles were quantitative studies. Experimental design was used in 16.1% and quasi-experimental design was adapted in 73.6% of articles. Qualitative research were 10.3% of total articles reviewed. 2) Only 5.1% of articles described theoretical framework and 73.6% of experimentally designed articles included research hypotheses. 3) Among experimental studies, only one was true experimental studie design. Eighty nine point three persent had descriptive survey method among non-experimental studies. Amog the thirty four qualitative studies, phenomenologic(73.5%), grounded theory(14.7%), and ethnographic (11.8%) design were used. 4) Most of research subject were patients and few healthy people, healthcare worker, and patient family. 5) Psychosocial data collection method which used questionnaire were 53.7% and interview. physical measurement, observation were used in 22.8%. 8.2% 5.4% of articles respectively. 6) Total number of keywords were 692, and average number of key words per article was 2.2. Health-related keyword was the most frequently used according to four metaparadigm of nursing (human, health, nursing, and environment). Environment related keyword was rarely appeared. The number and quality of nursing research in "Journal of Korean Academy of Adult Nursing" have been improved continuously. It is difficult to find out special trend or characteristics which is unique in this journal because of relatively short history of adult nursing studies. This review study was performed to analyze adult nursing studies only in the view of quantitative aspect, but it is needed to analyse qualitatively to find philosophical or theoretical trend in nursing.

GIS를 이용한 산불발생위험지역 구분

이시영,안상현,원명수,이명보,임태규,신영철 한국지리정보학회 2004 한국지리정보학회지 Vol.7 No.2

산불로 인한 재해를 미연에 방지하고 피해를 저감하기 위해서는 산불발생위험지역을 사전에 파악하여 예방대책을 세울 필요가 있다. 따라서 본 연구에서는 산불발생인자에 따른 산불발생위험지역을 구분하고자 겸상북도 의성군에서 발생한 산불피해지역에 대하여 임상, 지형 등에 대하여 조사하였다. 조사된 요인들 간 독립성 유무를 상관분석을 이용하여 산불발생과 관련 있는 7개의 주제도를 선정하였으며, 선정된 주제도를 조건부확률과 지리정보시스템을 이용하여 산불발생확률을 계산하였다. 계산된 산불발생확률을 20개 등급으로 지수화하여 산불발생위험지역을 구분하였다. In order to decrease the area damaged by forest fires and to prevent the occurrence of forest fires, we are making an effort to improve prevention measures for forest fires. The objective of this study is to classify hazard regions where forest fires occur based on the factors that contribute to the occurrence of forest fires. Forest fire sites in the Uiseong-gun, Gyeongsangbuk-do were surveyed according to the factors of forest type and topographic characteristics where the forest fires occurred. We used a correlation analysis to determine the forest fire occurrence factors and a conditional probability analysis and GIS to determine a forest fire danger index. The resulting forest fire danger index was used in the classification of forest fire occurrence risk regions.

흉통의 양상에 따라 분류한 불안정형 협심증 환자의 임상적 소견의 비교

김명수,김성구,정호석,온영근,신원용,김철현,최태명,현민수,권영주 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.1

Background and aims : The clinical syndrome unstable angina pectoris that encompasses a variety of symptoms and clincal presentations of transient episode of myocardial ischemia, was devided to several subgroups. Also, it has variable pathophysiologic factors to cause myocardial ischemia. According to clincal presentation, coronary angiographic finding and prognostic factor, the result of unstable angina pectoris is variable. In fact, there were a few data reported on the prognosis of wide spectrum of patients with unstable angina. However, the precise risk of subgroups according to classitication has not been established because it was difficult to compare between studies. We classified unstable angina pectoris by clinical nature of chest pain, and performed to establish and compare the clinical presentations, coronary angiographic findings, treatement and prognosis of patients with unstable angina within subgroups of classification. Methods : Retrospenctive data for 164 unstable angina pectoris patients admitted to the Internal Cardiology Division of Soon Chun Hyang University Hospital from May 1996 to July 1999 was analyzed. The patients were classified into one of the following categories: Class I, new onset of severe angina; Class II, acceleration of previous chronic stable angina; Class III, angina at rest. Clinical presentations, echocardiographic findings, coronary angiographic findings, treatment and prognosis were compared. Results : From the total 164 patients, the subjects of classes were as follows : Class I, 46 cases (28.1%); Class II, 74 cases (45.1%); Class III, 44 cases (26.8%). In view of age distribution, the 7th decade had the highest incidence, and then, 6th, 8th decades were followed. There was no baseline differences among the 3 classes with respect to gender, number of risk factors. Significantly, class II showed more severe findings in abnormal Q wave 15 cases (20.8%), total occclusive lesion 10 cases (20.8%) and three vessel coronary disease 11 cases (22.9%) than other classes. The change of ST segment was significantly apparent (p<0.02) among class I 28 cases (60.8%), class III 26 cases (59.0%), comparing with class II 30 cases (40.5%). Class III had the higher incidence of one vessel coronary artery disease than class I and III. The heparin treatment was performed in 99 cases (60.1%). The incidence of nonfatal myocardial infarction was much more in class I and III, each 4 cases (8.7%, 9.8%) than in class II 1 cases (1.4%). In-Hospital death was occurred in class I and II, each 1 case. Conclusion : The patients with the acclerated angina from chronic stable angina had more severe coronary artery disease than other classes, but they had better in-hospital prognosis.

Manufacturing process improvement of offshore plant: Process mining technique and case study

Shin, Sung-chul,Kim, Seon Yeob,Noh, Chun-Myoung,Lee, Soon-sup,Lee, Jae-chul Techno-Press 2019 Ocean systems engineering Vol.9 No.3

The shipbuilding industry is characterized by order production, and various processes are performed simultaneously in the construction of ships. Therefore, effective management of the production process and productivity improvement form important key factors in the industry. For decades, researchers and process managers have attempted to improve processes by using business process analysis (BPA). However, conventional BPA is time-consuming, expensive, and mainly based on subjective results generated by employees, which may not always correspond to the actual conditions. This paper proposes a method to improve the production process of offshore plant modules by analysing the process mining data obtained from the shipbuilding industry. Process mining uses information accumulated from the system-provided event logs to generate a process model and determine the values hidden within the process. The discovered process is visualized as a process model. Subsequently, alternatives are proposed by brainstorming problems (such as bottlenecks or idle time) in the process. The results of this study can aid in productivity improvement (idle time or bottleneck reduction in the production process) in conjunction with a six-sigma technique or ERP system. In future, it is necessary to study the standardization of the module production processes and development of the process monitoring system.

석유탈황 미생물 Desulfovibrio sp. B5의 생육특성과 성장 Modeling

신철수(Chul-Su Shin),김명동(Myoung-Dong Kim),안장우(Jang-Woo Ahn),신평균(Pyoung-Kyun Shin),서진호(Jin-Ho Seo) 한국생물공학회 1999 KSBB Journal Vol.14 No.1

내부표준물질방법을 이용한 HS-GC/MS에서 퇴적물 중 휘발성유기화합물 분석

신명철 ( Myoung-chul Shin ),정다솜 ( Da-som Jung ),노혜란 ( Hye-ran Noh ),유순주 ( Soon-ju Yu ),서용찬 ( Yong-chan Seo ),이보미 ( Bo-mi Lee ) 한국물환경학회 2021 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2021 No.-

A Clinical Study on the Oral Environmental Changes by Use of Mouth Gaggle with Some Minerals and Some Oriental Medicine Substance Extracts

Seung-Chul Shin,Bong-Seok Shin,Myoung-Hee Sim,Kyu-Hwan Lee 대한예방치과학회 2017 International Journal of Clinical Preventive Denti Vol.13 No.3

Objective: In order to find the oral health promotion effects, a clinical study was accomplished by use of the mouth rinse contained with some mineral and oriental medicine substance extracts. Methods: Sixty adult volunteers age 30 to 60 years were collected and divided with 2 groups as experimental group and the control. Mouth gaggle solution with some mineral and oriental medical substance extracts was delivered to experimental group and normal mouth gaggle solution as Gaglin-strong (Dong-A LTD) was used for control group, for 2 weeks. Simplified Patient Hygiene Performance index (S-PHP), tongue plaque index, and gingival inflammation index at frontal area as Papillary, Marginal and Attached gingival index (PMA) were checked at before experiment, and two weeks after experiment, and compared the data with 2 groups. Results: Both of the results as the plaque index and tongue plaque index were decreased in 2 weeks later in experimental group (p<0.05). And PMA index was also decreased but no different between in experimental group and the control (p>0.05). Conclusion: The mouth gaggle solution contained with some mineral and oriental medicine substance extracts could be used for decreasing dental plaque or tongue plaque and expected for decreasing the oral malodor.