교원효소로 유발된 랫드 대뇌 출혈병변의 병리학적 관찰

서일복,소경순,김광호,김영석 世明대학교 한의학연구소 1998 韓醫學硏究所 論文集 Vol.1 No.-

This study was carried out to characterized the hemorrhagic lesion sof the collagenase induced hemorrhagic stroke in rats. Fifty three Sprague-Dawley male rats were divided into two group. Group Ⅰ was served as model animals for hemorrhagic stroke, which were infused with 2㎕ saline containing 0.5unit collagenase(type Ⅶ) into the caudaate nuclei. Group Ⅱ was served as control animals, which were infused with 2㎕ saline only into the caudate nuclei. Six heaks of the rats of group Ⅰ were sacrificed at 30 min, 1, 5, 24 hours, 2, 5, 10 days after the infusion , and 3 heads of rats were sacrificed at 15 days after the infusion. Two heads of the rats of group Ⅱ were sacrificed at 30min, 1,5, 24 hours after the infusion. The brains of the rats were removed and examined grossly and histopathologically. Grossly, pin point sized or linear hemorrhage were occurred at 30minutes and the hemorrhagic lesions extended to 5mm in diameter at 24 hours. After then the hemorrhagic lesions faded gradually. Histopathologically, extended hemorrhage with degeneration of brain parenchyma were observed at 5 hours. Large area of malacia were observed at 24 hours. At 5 days, proliferation of astrocytes, proliferation of newly formed capillaries, and infiltration of lipid laden macrophages were seen at the periphery of the area of malacia. At 15 days, most of the area of malacia were replaced by granulation tissue. These observations may be useful parameters for the screening of therapeutic drugs using collagenase induced hemorrhagic stroke animal model.

응급실 내원 환자의 만족도 평가 및 관련 요인에 대한 연구

서강석,감신,박정배,이정헌,김종근,윤영국,곽경숙,이원기,우석정 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.4

Background: To examine the influencing factors on patients' satisfaction in the emergency department(ED) for quality assurance. Methods: Patients who visited to the ED were prospectively investigated from November 1 to December 31, 1997. Authors developed questionnaire to investigate influencing factors on patients' satisfaction. A Chi-square test and LISREL 7.0 were applied for statistical analysis. Results: Patients' satisfaction was significantly related to physical environment variables, accessibility variables, kindness of hospital personnel variables, and patient's trust for doctors variables. In path analysis, willingness for revisit was influenced by patients' satisfation, accessibility, physical environment, patients' trust for doctors in order, and willingness for recommendation was influenced by accessibility, patients' satisfaction, and kindness of hospital personnel in order. Conclusions: The influencing factors on patients' satisfaction are physical environment, accessibility, kindness of hospital personnel, and patient's trust for doctors. Willingness for revisit and willingness for recommendation are influenced by patients' satisfation. In spite of some limitations, the results of this study can be used as a baseline information for exploring the influencing factors on patients' satisfaction. Further comprehensive research efforts should be made on the study of patients' satisfactoin in the ED.

웹기반 통합데이터베이스에 의한 건설정보관리 방안

서정헌,박서영,곽중민,강인석 경상대학교 생산기술연구소 2002 工學硏究院論文集 Vol.2 No.-

Recently, our construction industry is using various work sections classification systems for civil engineering projects. However, because the public IDB(Integrated DataBase) for the work sections is insufficiently built, it is difficult to connect construction operation information from construction site to standard specification or standard method of measurment. Therefore, this study suggests a methodology to link the construction work sections information, such as cost, schedule, drawings and specification, with civil engineering standard method of measurement. And the methodology suggested in this study was applied to a web-based work sections information management system with IDB. An IDB modeling was designed by using DFD (Data Flow Diagram) and ERD (Entity Relationship Diagram).

보안정책 정보모델링과 보안정책 관리구조

서명국,송현교,신영석 호남대학교 대학원 2004 호남대학교 대학원 논문집 Vol.4 No.-

The purpose of network administration is to give clients the high quality services of well-managed stability and efficiency. Contemporary network administration has been managed by the way of controlling network elements through network status monitoring. The larger in scale and the more complex the network is, the more complicated and difficult network administration has become because of the obstacles which are simultaneously occurred. Therefore, the PBNM(Policy-Based Network Management is proposed to ensure the simplicity and automatism in the administration of computer networks. Recently, the DMTF which is a PBNM standards technology adapted to WBEM, DEN, and IETF is leading policy modeling. In the paper, We show a modeling and sharing of secure policy object-oriented and secured network administration by showing PBNM or reinforced LDAP (Lightweight Directory Access Protocol). Also, LDAP server is applied iPlanet and suggested the way of how to share network security information and LDAP schema. Tested to manage policy information stored in LDAP server by domain browser using Ponder toolkit that is PMT (Policy Management Tool).

晉州 附近 新洞層群(下部 白堊系)에서 産出되는 化石 Stromatolite의 生堆積 構造 및 古環境

金榮汶,白光錫,徐承祚 晋州敎育大學校 科學敎育硏究所 1998 科學敎育硏究 Vol.24 No.-

For the purpose of clarifying the organosedimentary structure and paleoenvironment of stromatolites from the southem part of the Kyongsang Basin, the study was carried out both through the field works and chemical analysis of samples. Obtained data were compared with the repotred ones from areas in North Kyongsang Province, additionally. Through this study, the paleaoenvironments of these areas were summarized as follows: 1. Laminations of stromatolite are consist of algal-rich and sediment-rich laminae altemately. The content of calcite, main component of stromatolite, has less Magnesium value. Thus, it seems to have formed under the fresh water environment. 2. The almost of the stromatolites have very irregular shapes which has been caused by disturbed and divided algae from microbial activities. Therefore, it can be inferred that the lake was calm. 3. It seems to have been shallow lacustrine environment and intermittent dry season.

요석 환자에서 대사 이상의 평가

이석영,서정원,윤석중,이상철,김용태,김원재 충북대학교 의학연구소 2001 忠北醫大學術誌 Vol.11 No.2

연구목적: 요석은 대사적 질환의 일종이라 할 수 있으며 이는 소변의 유체 역학의 장애나 혹은 배설되는 대사 산물의 생화학적 불균형으로 초래하게 된다. 따라서 본 연구에서는 24시간 요검사를 통하여 요석 환자들에서 요중 대사적 이상에 대해 알아보고자 하였다. 대상 및 방법: 연속적으로 내원한 재발성 요석 환자 151명(남자 114명, 여자 37명)을 대상으로 하였으며, 요석이 완전 치유된 후 최소 3개월이 지나고 24시간 소변을 채취하여 요량, 나트륨, 인, 요산, 칼슘, 마그네슘, 수산 및 구연산에 대하여 분석하였으며 대사 이상의 종류 및 빈도를 조사하였다. 결과: 요석 환자들에서 가장 호발하는 대사적 이상은 저구연산뇨증(47.1%)이었으며 다음으로 고나트륨뇨증(43.2%), 저소변량(30.5%), 고칼슘뇨증(23.5%), 고요산뇨증(22.1%), 고수산뇨증(10.7%), 그리고 저마그네슘뇨증(9.4%) 순이었다. 151명의 환자 중 적어도 한가지 이상의 대사 이상이 136명에서 관찰되었다. 결론: 요석 환자들에서 요중 대사 이상은 90.1%에서 관찰되었으며 저구연산뇨증과 고나트륨뇨증이 요석의 생성과 재발에 중요한 역할을 하는 것으로 조사되었다. 이러한 요중대사적 평가는 요석 환자의 진단 및 예방에 유용하게 이용될 수 있을 것으로 사료된다. Purpose: Urolithiasis is a metabolic disease which arises from disturbances of the physico-chemical balance or the hydrodynamic system of the urine. This study was to determine the metabolic abnormalities through the 24-hour urine examination in patients with urolithiasis. Materials and Methods: The 24-hour urine specimens of 151 RSF (114 men, 37 women) were analyzed for volume, sodium, phosphorus, uric acid, calcium, magnesium, oxalate, and citrate. The incidence and frequency of metabolic abnomalities in RSF were determined. Results : The most frequent metabolic abnormality in RSF was hypocitraturia (47.1% ), followed by hypernatriuria (43.2%), low urine volume (30.5% ), hypercalciuria (23.5%), hperuricosuria (22.1%), hyperoxaluria (10.7%), and hypomagnesiuria (9.4%). At least one metabolic abnormality was found in 136 out of 151 RSF. Conclusion : Our results showed that RSF had metabolic abnormalities were found up to 90.1% of them. Hypocitraturla and hypernatriuria could play an important role in the development and recurrence of urolithiasis. This data suggested that metabolic evaluation might be the useful tools for urolithiasis detection and prevention.

건설공사 업무프로세스재설계(BPR) 기법 연구

강인석,곽중민,박서영,이동희,김창학 경상대학교 생산기술연구소 2001 工學硏究院論文集 Vol.1 No.-

The current trend of If (Information Technology) in 21st century demands management innovation, that is Business Process Reengineering (BPR) in all the industry including construction project. The solution of its demand is proposed by IT based on Internet. And also, in order to meet this objective, from 1997 domestic construction industry is accelerating to systematize CALS (Continuous Acquisition and Life-cycle Support) which is being planned to apply by government. These efforts give much weight to build computer systems rather than to improve and redesign construction business process that is more important for system application. This research develops a model for applying the BPR to construction industry, especially construction site that is a base to build a system for CALS. And the research suggests performing method, process and modeling technique of BPR to be applicable in business process redesign of construction field. Also, focusing on the research of execution step of business in construction site will be helpful for the site worker to perform BPR in construction site.

건설공사비 예정가격산정 및 적산기법의 개선방안 연구

강인석,박서영,이우식,곽중민 慶尙大學校 1998 論文集 Vol.37 No.-

Construction cost estimating is a procedure for surveying the price to complete a project. The results from cost estimating are used as scheduled budgets by public organizations and actual costs by contractors. This study analyzes the existing construction cost estimating system by the comparative study of cost items in Korea and Japan, and then suggests some methods with improvement related to the problems awaiting solutions. The proposed methods include the reorganized cost items for estimating construction cost and the improved procedures for estimating construction cost and the improved procedures for estimating construction equipment cost.

일차 양측성 구순열의 일단계 재건에 대한 증례보고

임석균,이기혁,김영균,김수관,이병준,여환호,서재훈 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.3

Bilateral cleft lip reconstruction can be performed in one-or two-stages. The choice depends on the surgeon's proficiency and experience. However the type and severity of the cleft must be considered. Complete or incomplete symmetric, bilateral clefts in which the premaxilla is within the alveolar arch or slightly protruded can be successfully treated with simultaneous lip reconstruction on both sides. There are some advantages that one-stage lip reconstruction facilitates creation of a symmetric and balanced lip, retraction of protruding premaxilla and the parent's psychologic satisfaction. However, there are some disadvantages such as micrognathia of the upper jaw by severe scar formation and poor adaptation of flap margins by severe tension. The surgeon must be able to judge and exploit the advantages offered by one-stage approach. We present the case report of one-stage reconstruction of primary bilateral cleft lip with literature reviews.

이동 로봇을 위한 초음파 센서 기반의 주면 환경 지도 작성에 관한 연구

권석근,서남일,노영식 울산대학교 2000 공학연구논문집 Vol.31 No.1

본 논문에서는 미지의 환경에서 작업하는 이동 로봇의 경로 계획과 위치 인식에 필요한 주변 환경에 대한 지도작성 방법에 대하여 다루었다. 주변환경에 대한 정보를 보다 간략하게 나타내기 위하여, 이동로봇의 실내주행 중에 초음파 센서로부터 얻어진 일반적인 격자지도를 호프 변환을 이용하여 몇개의 직선 선분으로 단순화시키는 방법을 제안하였다. 여기서 기본이 되는 실내 환경에 대한 격자 지도 표현은 이동 로봇 상부에 장착한 15개의 초음파 센서를 이용하여 실시간으로 얻었고, 생성된 격자 지도 정보를 Off-Line상에서 호프 변환을 사용하여 간단한 직선 선분으로 변환한 후, 직선 선분을 합성하여 주변 환경 정보 표현의 간략화를 구현하였다. 실제 실험한 결과, 이동 로봇의 주변 환경을 간략하게 표현할 수 있는, 적은 수의 직선 성분으로 구성된 지도를 얻을 수 있다. In this paper, we presents how to simply build a grid map, which forms with line segments through in indoor environment. The description of the grid map for indoor environment is acquired in real time from 15 Ultrasonic sensors on a upper frame of mobile robot. To transform the grid map intothe line segment map, the Hough transformation method is applied. In result, we could obtain the line segment map which will be able to describe a indoor environment with a small number of line segments.