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      • SCORM 기반의 XML 학습 컨텐츠 검색 시스템

        최병욱,송미숙,조정원 한국컴퓨터교육학회 2003 컴퓨터교육학회 논문지 Vol.6 No.1

        차세대 인터넷 표준 언어인 XML(eXtensible Markup Language)은 데이터(data)와 표현(presentation) 그리고 구조(Structure)가 구분되기 때문에 어느 환경에서나 재사용성이나 재구성이 용이한 장점을 보이고 있다. 본 논문에서는 XML 문서를 가상교육 시스템(Virtual Education System)의 멀티미디어 컨텐츠로 범위를 제한하여 사용자 위주의 효율적인 검색 시스템을 구현한다. 본 시스템에서는 가상교육 표준안으로 제안되고 있는 SCORM(Sharable Content Object Reference Model)에서 정치한 SCO(Sharable Content Object)단위의 메타데이터를 기반으로 컨텐츠를 설계하고 각 문서를 키워드, 엘리먼트, 애트리뷰트 단위로 색인한다. 또한 사용자 인터페이스에서 앨리먼트 검색화면을 구조적으로 구성해줌으로써 사용자가 DTD(Document Type Definition)fl 대한 사전지식 없이도 검색이 가능하며, XML-QL로 재구성된 XML 문서의 형태와 XSL(extensible markup language Stylesneet Language)을 이용한 HTML 형태의 두 가지 결과화면을 제시함으로써 사용자 선택의 폭을 넓혀준다. XML(eXtensible Markup Language), next generation internet standard language has the advantage of easy re-use and re-structure in other computing environment because it has the separate data, presentation and structure. In this paper, we implement the efficient retrieval system for the general user by limiting the XML documents on the multimedia learning contents for the virtual education system. The system design is based on SCO Metadata unit defined in SCORM as the proposed virtual education standard. Each XML documents has three indexes keyword, element and attribute. Also, it makes Possible to retrieve data without previous knowledge of the 078 by making the element retrieval screen structure for the user interface. And it gives the user various result screen formats such as XML and HTML by restructuring the retrieval result through XML-QL and XSL, respectively.

      • KCI등재

        The Ameliorative Effects of Korean Bean‐Leaves on Inflammation and Liver Injury in Obese Rat Model

        Byung?Moon Jin,Seok?Cheol Choi,Hye?Sook Lee,Sang?Bong Jung,Kyung?Yae Hyun 대한의생명과학회 2013 Biomedical Science Letters Vol.19 No.3

        Obesity may cause metabolic syndrome and adult diseases. This study was undertaken to investigate the ameliorative or useful effects of beanleaves on inflammation and liver damage in obese rat models. Rats were divided into three groups: a control group (normal diet, n=6), a fat diet group (45%?fat diet, n=7), and a bean leaf group (45%?fat+Korean bean leaves diet, n=7). Body weights in the bean leaf group were lower than those of the fat group (P<0.05). Serum tumor necrosis factor?α (TNF?α) and prostaglandin E₂ (PGE₂) concentrations were lower in both the control and bean leaf groups than in the fat group (P<0.001). TNF?α concentrations in the bean leaf group were slightly higher than in the control group but statistically significant (P<0.05). The bean leaf group histologically exhibited lower fatty degeneration, spotty necrosis, and leukocyte infiltrations in hepatic tissues than those of the fat group. In the homogenized liver tissues, the cyclooxygenase?2 (COX?2) gene was only expressed in the fat group. The gene expression levels of hepatic TNF?α, inducible nitric?oxide synthase, peroxiome proliferator?activated receptor?α (PPAR?α), poly (ADP?ribose) polymerase (PARP), and transforming growth factor?β1 (TGF?β1) were weaker in the bean leaf group than in the fat group. These results suggest that adding bean?leaves to the diet may ameliorate obesity?induced systemic inflammation and liver damage and that bean leaves may be a useful food for preventing obesity and thereby metabolic syndrome and adult diseases

      • KCI등재
      • KCI등재

        프레탈^(R)정(실로스타졸 50mg)에 대한 실로졸^(R)정의 생물학적 동등성

        최한곤,권기철,이승호,김학미,박병주,유봉규,이종달,이경희,하정희,우종수,박인숙,최진석,용철순 한국병원약사회 2003 병원약사회지 Vol.20 No.1

        Bioequivalence of two cilostazol tablets, the Pletaal^(R)(Korea Otsuka Pharmaceutical Co., Ltd.) and the Cilozol^(R)(Hanmi Pharmaceutical Co., Ltd.), was evaluated according to the guideline of KFDA, Sixteen normal male volunteers(age 20~29 years old) were divided into two groups and a randomized 22 cross-over study was employed. After two tablets containing 50㎎ of cilostazol were orally administered. blood was taken at predetermined time intervals and the concentration of cilostazol in plasma was determined with an HPLC method using UV detector. The pharmacokinetic parameters(C_(max), T_(max) and AUC_(t)) were calculated and ANOVA was utilized for the statistical analysis of parameters. The results showed that the differences in C_(max), T_(max) and AUC_(t) between two tablets were 4.99%, 1.74% and 7.68%, respectively. The powers(1-β) for C_(max), T_(max) and AUC_(t) were83.92%, 80.12% and 85.03%, respectively. Detectable differences(Δ) and confidence intervals were all less than 20%, and confidence interval of all the parameters were also less than 20% at the significance level(α) of 0.05. All of these parameters met the criteria of KFDA for bioequivalence, indicating that Cilozol^(R) tablet is bioequivalent to Pletaal^(R) tablet.

      • 표면처리된 복합레진에 대한 수리용 레진의 결합강도에 관한 연구

        강현숙,최호영,민병순,박상진,최기운 慶熙大學校 齒科大學 1995 慶熙齒大論文集 Vol.17 No.1

        Composite resin repair requires strong bond strength between the new and old materials. The objective of the current study was to identify the optimal treatments for sufficient bond strengths. Bondings between same kinds of materials and cross bondings using chemical curing composites and light curing composites were tested. Surface treatments included the methods of sand-blasting, acid etching and coating of bonding agent. Seven kinds cases of combinations from three kinds of methods were experimented and compared with a control group of which surfaces were highly polished. Measurements of shear bond strength and observations of surface morphologic changes using a scanning electron microscope were done. Following conclusions were drawn 1. The highest bond strength among composite resins were exhibited by the treatment of the sand-blasting and the coating of bonding agent. 2. Acid etched surfaces showed the lowest bond strength. Bond strengths obtained from experimental groups including acid etching were lower than those obtained from same kinds of experimental groups without acid etching. 3. Simple method of the coating of bonding agent produced the slightly increased bond strength on chemical curing composite and reduced bond strength on light curing composite. 4. Bonding surfaces of chemical curing composite resin showed slightly higher bond strengths than light curing composite resin, however significant differences were not confirmed statistically. 5. More significant irregular surfaces were created by sand-blasting method than acid etching method. 6. A principal component of fillers of both resins was silicon. Acid etching method produced the seperations and degradations of fillers, these were significant on light curing composite resins which containing barium fillers.

      • KCI등재후보

        세계화와 지식기반경제시대에서의 경제교육 담당교사들의 경제인식 능력 및 경제의식 조사 연구

        허인숙,최병모,김정호 경북대학교 사범대학 부속 중등교육연구소 2005 중등교육연구 Vol.53 No.2

        세계화와 지식기반경제 사회에서 요구되는 시민을 육성하기 위해서는 실질적인 경제교육의 주체라 할 수 있는 경제교육 담당교사들에 대한 객관적이고 실증적인 조사가 무엇보다 먼저 이루어져야 한다고 본다. 이러한 필요성을 인식하여 본 연구는 현행 학교교육에서 경제교육 담당교사들에 대한 경제인식 능력과 경제의식을 파악하여 교사들의 세계화와 지식기반경제시대에 대한 현 좌표를 살펴보고, 교사훈련기관인 사범대학이나 교육대학의 교육과정과 교사교육 연수프로그램에 있어서의 개선점에 대한 시사점을 찾아 세계화와 지식기반경제시대에서 요구되는 바람직한 경제교육의 방향을 모색하는데 있다. 본 연구의 목적 달성을 위해 경제교육 담당교사들의 경제인식 능력 및 경제의식에 대한 조사는 네 가지 영역, 즉 '대학시절과 연수과정에서 이수한 경제관련 과목에 대한 내용', '세계화와 지식기반사회에서의 우리 경제현안에 관련된 내용', '지식기반사회에서의 정보소양 능력에 관련된 내용', 그리고 '세계화시대에서의 경제소양에 관련된 내용'으로 이루어졌고, 이 네 가지 영역에 대한 조사는 전국 초 · 중 · 고등학교 경제교육 담당교사를 대상으로 설문지를 통해 이루어졌다. 연구조사를 통해 얻어진 결론은 우선 직전교육을 담당하는 대학의 교육과정뿐 아니라 교사들에게 새로운 경제 환경을 올바르게 인식할 수 있도록 미리 대비시키는 연수과정이 매우 불충분 한 것 같다. The purpose of this study intends to understand the economic recognition and awareness of economic teachers in the present school education field, to inspect the present aspects of the age of globalization and knowledge-based economy, to seek the suggestion of the improvements in the curriculum and training program of the institute of teacher training, and to explore the direction of the good economic education to be demanded at the age of globalization and knowledge-based economy. To achieve the purpose of this study, the survey of the economic recognition and awareness of economic teachers was implemented through the four areas, that is, the content of the economic curriculum to complete in the college course and training program, the content of the outstanding questions of our economy at the age of globalization and knowledge-based economy, the content of information literacy at the age of knowledge-based society, and the content of economy literacy at the age of globalization. These four areas was investigated through survey as the subjects of the economic teachers of elementary, middle, and high school.

      • 고성능 유도 전동기를 위한 퍼지 속도 제어기

        권병휘,全光鎬,崔秉淑,鄭雨均 홍익대학교 산업기술연구소 1997 産業技術 Vol.7 No.-

        In this dissertation a novel speed control system that implements the fuzzy logic controller(FLC) is proposed. The proposed FLC used the speed error its rate of change, and the drive current as three fuzzy variables. The real command output current is chosen by the defuzzification of fuzzy output extracted from the fuzzy control rules. The flex and the torque of the induction motor are estimated using the dynamic model with an excellent dynamic response over a wide speed range and with the rotor flux field-oriented scheme of the decoupling characteristics The performance of this control system is substantiated by computer simulations.

      • KCI등재

        EFFECTS OF LIDOCAINE ON SOMATOSENSORY EVOKED POTENTIALS IN RAT VIBRISSA/BARREL CORTEX

        남순현,최병주,김현정,이만기,김영진,이혜숙 大韓小兒齒科學會 1996 大韓小兒齒科學會誌 Vol.23 No.3

        본 실험은 삼차신경 자극으로 발생되는 체성 감각 유발 전위에 대한 국소마취제의 효과를 관찰하였다. 나트륨 통로차단을 통하여 약리작용을 나타내는 것으로 알려져 있는 리도카인를 뇌 피질에 국소 투여한 후 삼차신경의 체성 감각유발 전위의 강도및 지연시간을 측정하였다. 케타민으로 마취된 흰쥐의 대측성 구레나룻 자극후 뇌의 체성 감각영역으로부터 기록되는 유발전위를 분석한 결과, 리도카인을 뇌 피질에 국소 투여시 유발전위의 강도 및 지연시간의 감소가 나타났으며, 필드 전위의 형태는 이상성(양극성 및 음극성) 혹은 삼상성(양극성, 음극성 및 양극성)의 파형으로 나타났다. 필드 전위의 발생 부위는 뇌 피질의 중대뇌동맥의 상행지 상방영역이었다. 본 실험에서 나타난 초기 전위변동은 피질판 상층에 존재하는 신경세포의 탈분극 과정에 의하여 생성되고 후기 전위 변동은 피질판 상층에 존재하는 신경세포의 탈분극 과정에 의하여 생성되고 후기의 전위 변동은 동일 영역의 하층 신경세포에서 과분극 혹은 재분극이 발생한 결과라고 유추된다. 따라서 삼차신경계의 체성 감각 영역에서는 피질 상층및 하층의 과립성 피라미드 세포의 순차적인 활성화에 의하여 기본적인 신경 회로망이 형성되어 있으며 생리적 자극으로 유발되는 필드 전위는 이러한 신경망를 통하여 발생될 것으로 사료된다.

      • KCI등재

        마약성 진통제 사용에 관한 지식 및 태도의 비교

        김경희,최경숙,이순실,이병구 한국병원약사회 2000 병원약사회지 Vol.17 No.4

        Narcotic analgesics has been known as representitive drugs for pain control n terminally ill patient with palliative care, narcotic analgesics use is most effective and best, way to reduce pain in that patients However many patients are poorly complient with narcotic analgesics for lack of knowledgement of narcotics effect, perception of addictive drug, tolerence and adverse reaction. In addition to many doctors do not choose the adequate narcotics according to pain severity. It has been reported that effective pain management has not been achieved by doctors and nurses because of shortness of knowledgement of narcotic use on administration. This study was performed to identify pharmacist knowledgement of narcotic analgesics in respect that the pharmacist are responsible for patient education of narcotic medication, to identify the barrjers of narcotic dispensing and administration and then to compare the knowledgement between doctors, nurses and pharmacist. At first we surveyed the pharmacist's knowledgement and attitude by written questionnaire in SNUH in Sep. 2000, and then we compared this result and doctors and nurses' result has been taken already in SNUH in May 1999. The questionnaires are composed of narcotics classification 11, narcotic pharmacology 8, narcotic administration 5, more detail question 15 cited in Elliot study. The result is analysed by average, S.D., frequency, percentile, comparison of knowledgement of doctors, nurses and pharmacist is analysed by paire t-test, ANOVA. As a result, the pharmacist group has higher average in knowledgement of narcotic analgesics, however it was not different from doctor and nurse's significantly. According to result of attitude analysis, 48% of pharmacist has been hesitated in dispensing and administration of narcotics, that was because of the difficulty in management of narcotic prescription (25%). The role of pharmacist in pain management of patients who take narcotic analgesics is very important and great. We ought to obtain a certain of accurate knowledgement of narcotic analgesic use and perform a effective and responsible medication education and counseling.

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