산수과 과제영역에 따른 초인지학습의 효과

도정기 한국아동교육학회 1995 아동교육 Vol.4 No.2

This study aims at finding what effect metacognitive training has on raising the achievement level of arithmetic and what differences the effect produces depending on operation, connaction, measurement. The followings are the hypotheses of this study First, the group of metacognitive training strategy will show a higher degree of achievement over the group of conventional training strategy. Second, The effect reflected in the achievement in arithmetic by the metacognitive training strategy will differ depending on the domains of the subject. Eighty-two students in the sixth grade of C Primary school in Chung Do- gun, Kyung Sang Buk-do were chosen to be assigned forty-one each to the group of metacognitive training strategy and that of conventional training strategy. the two groups were confirmed to be of the same quality in the pre-test scores. The teaching material consisted mainly of the basic principles in the domains of subjects of operation, connaction, measurement in arithmetic. The volume of study was assigned forty minutes per hour, same as ordinary class time, for a total of ttt~elve hours over a period of two weeks : the pattern for solving arithmetic problems was applied to the group of metacognitive training straining strategy and the conventional training pattern to group of conventional training strategy. The results of the post-test one day after the training period and the delayed-test two weeks following the period were used as data for verifying the achievements in the domain of arithmetic. Dual change quantity were analysed with two training strategy(metacognitive, conventional) and three domain of subjects(operation. connaction, measurement). t-tests were need to test the significance of the difference between Two Strategies (metacognitive training, conventional training) within each domain of the subject. The following conclusion was obtained through interpretation of the results of verification First, the metacognitive training strategy proved to be more effective than the conventional training strategy in raising the achievement level. Second, the metacognitive training strategy lasts after two weeks onward in its effectiveness. Third, Bolth metacognitive training strategy and conventional training strategy mode little difference in effect in the domain of operation, but in the domains connaction, measurement metacognitive training strategy proved more effective. Fourth, The effect in achievements by the domain of subjects of the metacognitive training strategy continues after two weeks on.

경남 일부 지역 간흡충 감염 주민에 대한 혈청 생화학검사 소견 분석

손운목,조영표,김기진,김미영,이종욱,박도흠 한국건강관리협회 1999 건협 Report Vol.2 No.-

책 표지 이미지에서의 책 정보 추출 및 인식

심락기,원도연,차인덕,하진영 강원대학교 정보통신연구소 2009 정보통신논문지 Vol.13 No.-

Information systems are used to manage book information for the libraries and book stores. It is very difficult, however, to extract book information from the bookshelf images automatically without using bar codes or something else. There may be discrepancy between the information system and the real bookshelves if there is no proper management. In this paper, we proposed an effective method to extract book information from book cover images. After segmenting individual book cover image, title and authors information can be recognized using OCR (Optical Character Recognition) technology. Those informations are matched to book database to verify the recognition results. In our system, title, authors and publisher information are effectively extracted using OCR and database search.

팽창 공명기형 맥동 감쇠기의 임피던스 특성 : 유압용 피스톤 펌프의 유량·압력맥동 감쇠 Attenuation on Flow and Pressure Ripple from a Hydraulic Piston Pump

김도태,이상기 韓國工作機械學會 2000 한국생산제조학회지 Vol.9 No.1

In this paper, an expansion-resonator type pulsation attenuator is proposed to absorb and attenuate flow and pressure ripple with high frequencies generated froth hydraulic control systems. The basic principle of a pulsation attenuator proposed here is applied to propagation, reflection, absorption of pressure waves at the cross section of discontinuity and resonance ire the pipeline. It has advantage of the compact size and high degree of freedom for installation in hydraulic systems. The design scheme based on distributed parameter pipeline system with dissipative viscous compressible model is developed. To investigate the reduction of flow and pressure ripples with high frequencies produced by a swash plate type axial piston pump, two kinds of attenuators are manufactured. It is experimently confirmed that the spectral intensity of flow and pressure ripple with high frequencies from the pump are reduced up to about 20°∼30dB by using attenuators proposed here. The calculated results were in good agreement with the measured values. From the results of this study, it is shown that an expansion-resonator type pulsation attenuator is effective in a wide frequency ranges to attenuate the flow and pressure ripple from hydraulic components.

관광자의 퍼스낼리티 유형과 관광동기와의 관계에 관한 연구

조용기,이귀옥,신도길 경주대학교 건설환경연구소 2000 建設環境論叢 Vol.- No.3

It is necessary for tourism planners and marketers to grasp tourists in light of psychographics as well as sociodemographics in oder to properly develop and market their destinations. The purpose of this study was to investigate the relationship between tourists's personality type and motivation That is to prove the differences in tourism motivation across personality types. To classify the personality types of tourists, Plog's personality model of allocentric, midcentric, and psychocentric was used. In a questionnaire survey for the empirical analysis of this study, 248 tourists who visited Woopo wetland and Kanghwa participated. The findings indicated as follows: First, personality types were classified as allocentric(25.4%), midcentric(56%), and psychocentric(18.5%). Second, 5 factors(learning and sightseeing of nature, relaxation & escape, achievement and self-actualization, warm relationship with others & outdoor activity, and family together) of tourism motivation were identified after factor analysis. Third, tourism motivation exhibited significant differences by personality types. Forth, tourism motivation significantly influenced tourist satisfaction.

진동에 의한 혈관 내 폐 보조장치에서의 기체전달의 향상

나도춘,김기범,김성종,정경락 전북대학교 공학연구원 ( 구 전북대학교 공업기술연구소 ) 2003 工學硏究 Vol.34 No.-

When the Microporous hollow fiber membrane(MHFM) was contacted with whole blood, the serum leakage(membrane fouling) was occurred in the MFHM. In general, the MHFM was in use at most intravascular lung assist device(IVALAD) which was often occurred the serum leakage, and these serum leakage were reduced the gas exchange. In this work, we tried to improve gas exchange on the IVALAD by using vibration technique. As a result, it was showed that the vibrating method of this module was very effective due to the reduction of serum leakage on MFHM. Therefore, this method was increased gas exchange, respectively.

헤모글로빈의 Microencapsulation에 의한 인공적혈구의 산소전달과 용혈도에 관한 연구

나도춘,김기범,김성종,정경락 전북대학교 공학연구원 ( 구 전북대학교 공업기술연구소 ) 2003 工學硏究 Vol.34 No.-

In this study, we tried to improve oxygen transfer rate and reduce pressure drop on intravascular lung assist device with microencapsulation of red blood cells, because microcapsulation of red cells reduce blood hemolysis. Hemoglobin was purified from outdated human red blood cells used. Phospholipid was purified from egg yolk. The hemosome was prepared by encapsulation of hemoglobin with phospholipid multilayer, using rotary vacuum evaporator. The function of hemosome and hemosome/blood mixed solution was tested by measuring oxygen dissociation curve using blood gas analyzer. Also we were measured about hemolysis of hemosome, hemosome/blood mixed solution and blood by absorptivity method. As a results, the oxygen dissociation curve of hemosome and hemosome/blood mixed solution showed the same figure as the curve of normal red blood cells. Also, the hemolysis of hemosome and hemosome/blood mixed solution was measured less than normal red blood cell. Therefore, the oxygen transfer rate showed high use of hemosome, and hemosome/blood mixed solution rather than normal blood. Because microen- capsulation of normal red blood cells prevent hemolysis of normal red blood cells.

大羌活湯의 消炎 鎭痛作用에 관한 硏究

金度植,林起龍,李炳柱,엄기진,文永熙 조선대학교 약학연구소 1992 藥學硏究誌 Vol.14 No.1

Experimental studies were conducted to investigate for the effect of Daeganghwal-Tang(DHT) extract on the anti-inflammatory activity, analgesic activity, subacute toxicity and acute toxicity. The following results have been obtanied ; In the anti-inflammatory activity in rats, DHT extract (300,600㎎/㎏ p.o) was shown remarkable preventive effect in the edema induced by Freund's complete adjuvant and 5% acetic acid. In analgesic activity test in mouse, DHT extract(300,600㎎/㎏ p.o) was shown significant analgegic activity in mouse induced by 0.7% acetic acid. In acute toxicity test in mouse, DHT extract showed10% mortelity at DHT extract 1.200㎎/㎏ i.p. and 2,000㎎/㎏ p.o.. In subacute toxicity test in mouse. DHT extract was not showed toxicity for 19 day. Uric acid in the serum of the treated rats by Freund's complete adjuvant were slightly decreased by comparing with the control group. During the administration of DHT extract, The body weight increased, but the liver and spleen weight was not changed by comparing with the control group. .

生産環境의 變化에 따른 管理會計시스템의 問題點

千都錠,崔杞豪 全北大學校 1991 論文集 Vol.33 No.-

At present, manufacturing environment is changing rapidly. To take competitive advantages, corporates should have flexibility in production. Conventional management accounting system(CMAS) has provided useful information for manager's decision making under the past manufacturing environment. But CMAS has not unchanged for past half a century. Thus, CMAS has lost its relevance. CMAS made under the past manufacturing environment must change into the new management accounting system(NMAS) under the new manufacturing environment. So far, the researches on the problem of CMAS and the feature of NMAS have been conducted conceptually. However, the empirical researches on NMAS are needed. As a conclusion, more field based researches such as case studies, field experiments and field surveys are needed to design NMAS.

혈관 내 폐 보조장치에서의 기체교환속도의 향상

김기범,나도춘,김성종,정경락 전북대학교 공학연구원 ( 구 전북대학교 공업기술연구소 ) 2003 工學硏究 Vol.34 No.-

We intended to develope an vibrating intravascular lung assist device(VIVLAD) in order to exchange of efficiently gas transfer of oxygen and carbon dioxide exchange requirements for end-stage acute respiratory distress syndrome (ARDS) patients. However, the clinical study, concluded that more gas exchange was needed for intravascular oxygenation to be clinically effective in ARDS treatment. In this study, we tried to enhance gas exchange on the VIVLAD by using microencapsulation of hemoglobin, as the microencapsulation of hemoglobin reduces blood hemolysis, and perfluorocarbon emulsion(PFC emulsion). As a result, it was shown that the oxygen transfer of hemosome and blood/hemosome mixed solution were higher than that of whole blood. Also, it showed that the carbon dioxide transfer of whole blood/PFC emulsion mixed solution was higher than that of others. Therefore, we determined that hemosome and PFC emulsion could increase oxygen transfer and carbon dioxide transfer, respectively.