韓國 男子 排球競技의 勝敗要因을 EFF方式에 의한 分析

文湧冠,崔世鎭 仁荷大學校 스포츠科學硏究所 1992 論文集 Vol.4 No.-

This study purports to analyze the factors of winning and losing volleyball by using efficiency factor method. Eight sample teams were selected for this study, all national teams from right countries such as U.S.S.R, U.S.A, BULGARIA, HOLLAND, FRANCE, JAPAN, CANADA, and they were compared with Korean team. The data were collected from the games of the 3rd F.I.V.B international cup held in Seoul 1987. The results were as follows; 1. At the blocking eff., Korea was significantly poor and was the lowest among 8 teams. 2. At the court defence eff., Korea was better than three other national teams from Holland, Bulgaria and France. However, there was no significant mean difference between Korea and other national teams. 3. At the serve receive eff., Korea was better than two other national teams from Bulgaria and Canada. However, there was no significant mean difference between Korea and other national terms. 4. At the setting eff., Korea was better than three other national teams from Holland, Bulgaria and Canada. However, there was no significant mean difference between Korea and other national teams. 5. At the points ratio eff., Korea was better than two other national teams from U.S.S.R and U.S.A. However, there was no significant mean difference between Korea and other national teams. 6. At the attack eff., serve eff. and side out eff., there was no significant mean difference between Korea and other national teams.

Sr·페라이트 플라스틱자석의 제조에 관한 연구

문현욱,최희태,서강수,신용진 明知大學校 産業技術硏究所 1995 産業技術硏究所論文集 Vol.14 No.-

In this paper, we mention he fabrication of Sr ferrite plastic magnet. In order to compose Sr ferrite, first, a little CaO, SiO₂, Na₂SiO₃, and Al₂O₃ are added to SrO5.9Fe₂O₃. Then, the composition is calcinated at 1225℃ under N₂ enviroment for 1 hourwith addition of PVA 5wt% solution. The carbon coating method increase grinding effect on powder fabrication. To fabricate anisotropic Sr ferrite plastic magnet, 80-89wt% of Sr ferrite and polyamide6 are kneaded and then 0-12kOe of magnetic field is applied. On magnet fabrication, an optimal condition of injection mold is obtained under the injection temperature 270℃, the injection pressure 120㎏/㎠, the magnetic field 8kOe and magnetic field applied time 8sec. As the result of experiments, we obtain (BH)max = 2.09MGOe property on anisotropic plastic magnet which is fabricated by using injection mold method in magnetic field.

응급실에 내원한 환자에서 어지럼증의 원인과 임상양상의 분석

문원식,정경운,위준선,문정미,전병조,김용권,소정일,류진호,허탁,민용일 대한응급의학회 2001 대한응급의학회지 Vol.12 No.3

Background: Recently, The number of patients who have been complaining of the vertigo or dizziness has been increasing due to rapid growth of elderly population and senile disease. The differentiation of dizzy patients is not familiar to most emergency physicians. This study was designed to differentiate true vertigo and to investigate the clinical difference among central vertigo, peripheral vertigo, and other causes of dizziness. Methods: The authors analyzed the cases of 237 dizzy patients who visited the emergency department of Chonnam University Hospital during the recent 2 years. For the base of dizziness, associated past illnesses, severity, nystagmus type, and the causes of central and peripheral vertigo. Results: Female patients were 142(59.9%) and male patients were 95(40.1%). The most common age group was the 6th decade. The origin of dizziness was classified as peripheral cause(25.3%), central cause(32.9%), and others(41.8%). As to nature of the dizziness, the rotatory sense was dominant in peripheral vertigo and the floating sense and blurred vision in central vertigo. Peripheral vertigo was triggered by position change of head and body, and central vertigo by the eye movement. Audiograms I showed that most patients with central vertigo had normal hearing, but 46.7% of thoswith peripheral vertigo had an abnormal hearing disturbance. Nystagmus was more prevalent in peripheral vertigo Conclusion: History taking and physical examination played an important role in the diagnosis of dizzy patients. An important part of the diagnosis of a dizzy patient could be to evaluate the peripheral origin, the central origin and others causes. Because central vertigo may be associated with a significant neurological pathology, spectral radiological studies, including MRI and CT, are mandatory to rule out a devastating brain lesion.

뇌졸중후 우울증

문석우,서정석,남범우,최진영 건국대학교 의과학연구소 2004 건국의과학학술지 Vol.14 No.-

In recent years, depression is most commonly reported psychiatric condition after stroke, poststroke depression(PSD) has attracted world-wide interest. This review focuses on the major research themes that have emerged. Pooled data from studies, have wide variation in results is due to different criteria for patient selection, different evaluation methods, diagnostic criteria and poststroke intervals, conducted throughout the world have found prevalence rates for from 18% to 65%. The diagnosis of PSD is most appropriately based on a structured mental state exam and DSM-N criteria for depression due to stroke with major depressive-like episode or depressive features. Rarely, poststroke patients may also develop bipolar mood disorder. The treatment of PSD, single antidepressant showing efficacy and electroconvulsive theraphy(ECT) and behavioral therapies have also effective. The progression of recovery following stroke can be altered by treating depression, which has been shown to improve recovery in activities of daily living(ADL) and cognitive impairment and to decreased mortality. The mechanisms underlying the association of stroke and mood disorder are important areas for future investigation.

흰쥐에서 말초신경 손상후 뒤뿌리신경절세포의 신경영양인자와 그 수용체의 발현 양상

백선용,양만석,문총석,김봉선,김재봉,김진정 대한해부학회 1999 Anatomy & Cell Biology Vol.32 No.2

웹사이트 개발 수준에 영향을 미치는 요인에 관한 연구

문용은,정유진 한국정보시스템학회 2003 情報시스템硏究 Vol.12 No.2

IT and e-business is a hot issue of the world business and economic communities. The web site is the portal through which most of electronic transactions are conducted today. The main purpose of this paper is to investigate on factors influencing the web site development at the firms in Korea. Survey questionnaires were distributed via email & post to 281 firms that have implemented web site. Out of 44 responded questionnaires, 39 data sets were available for statistical analysis with SPSSWin 10.1. Factor analysis identified five dimensions of web site development : (1) support of top management, (2) information technologies maturity, (3) strategic utilization of web site, (4) strength of rivalry among competing firm, (5) support policy of the government. Results of this study show that information technologies maturity and strategic utilization of web site positively influence on web site development. But support of top management, strength of rivalry among competing firm and support policy of the government don't influence on web site development. This study may provide a guideline to improve the quality of web site development.

지리 정보 시스템을 위한 DXF 파일 변환기의 설계 및 구현

문진용,구용완 수원대학교 자연과학연구소 1999 자연과학논문집 Vol.2 No.-

In this paper, we design and implement a DXF converter which converts a DXF file into a PostScript file since the latter is one of the most powerful graphics formats and can be used for various printers directly. It consists of the File manipulation module, the DXF file manipulation module, and PostScript file generation module. In order to develop the DXF converter, we first analyze each of the file formats (i.e., DXF and PostScript formats), and then implement and test the three modules. Finally, we develop the complete DXF file converter by combining the three modules.

Nd를 첨가한 Sr페라이트 플라스틱자석

진성빈,문현욱,이광배,신용진 명지대학교 산업기술연구소 2001 産業技術硏究所論文集 Vol.20 No.-

In this dissertation, we have studied on the fabrication of Sr ferrite plastic magnet with additional Nd. First, we selected SrO5.9F₂O₃of nonstoichimatric composition as the basic composition of specimen ferrite since its magnetic property was excellent. Then, we added Nd to the specimen. In order to control the properties of the particles on fabrication of magnetic powder, 0.3wt% CaCO₃, 0.2wt% SiO₂, 0.twt% Al₂O₃and 0.5wt% Na₂SiO₃were added. For carbon coating ont he compound specimen, 5wt% polyvinylalchohol was added and then the compound specimen was calcinated under N₂environment at 1,225 ℃. After performaing grinding process for 18 hours, we obtained 1.0~1.2㎛ size of single domain magnetic powder. We added 1 wt% silane coupling and 1 wt% calcium stearate to the Sr ferrite powder with additional Nd, and then mixed them well. Next, we pelleted them after kneading them, using polyamide12 as a binder. The pelleted specimen was injection-moulded using anisotropic mould under magnetic field of 12kOe. As the results of property tests for the fabricated specimen magnet, we find that the fabricated magnet has the following excellent peroperties at Nd 12.5wt%: bHc=2.84kOe, Br=3.23kG and (BH)max=2.49MGOe.

다중 채널 동축 케이블의 초고주파 측정용 보드 설계

문수덕,김진규,황희용 강원대학교 산업기술연구소 2007 産業技術硏究 Vol.27 No.A

In High-Speed DSP systems, crosstalk between transmission lines of multi-channel can degrade the performance of equipment operations, This paper presents a microwave board to measure multi-channel coaxial cable assembly. The designed board has good performances from DC to 3 GHz, which have improved characteristic impedance, reduced crosstalk by using via fence, and low transmission loss. Using the designed board, we can measure characteristics of DUT(Device Under Test) such as return loss, insertion loss, crosstalk, phase delay, and characteristic impedance. The measured results are used to improve performances of a produced coaxial cable assembly.

IGIS : 웹 상에서의 인터넷 지리 정보 시스템

문진용,백인구,한기준 건국대학교 산업기술연구원 2000 건국기술연구논문지 Vol.25 No.-

Recently, as application fields of a computer are increased, a Geographical Information System(GIS), which stores a large volume of geographical data into a computer and manages them efficiently according to user's needs, is widely used. Since the Internet has a great potential for geographical information systems, researches in an internet geographical information system have received much attentions in recent years. In this paper, we designed and implemented an Internet Geographical Information System, called IGIS, that supports the client/server architecture connected via the Internet. IGIS consists of the Map Server and the Map Viewer which can be located at a server site and client sites, respectively. In addition, we used the Common Gateway Interface(CGI) to service the geographical information on the Internet and used a DXF(Data eXchange Format) file as a geographical data in IGIS. Because IGIS adopts the helper application approach, it enables users to manage Hangul and English data and perform display, zoom-in/zoom-out, pan functions on the GUI(Graphical User Interface).