어린이영어교육에서 멀티미디어 활용의 효과

류승희,이정희 대불대학교 2003 論文集 Vol.9 No.1

This paper suggests that it be one of the best ways to teach English to young children by using multimedia in our EFL (English as Foreign Language) environment where there is much lack of opportunities to hear and speak English in our daily life Here are reviewed the characteristics, evaluation standards of CD-ROM Title and Internet site, and their educational effect to help the teachers teach English their young children. By using good CD-ROM Titles with the voice of English native speaker, alphabets, and animation, it gets easier for young children to cognize things by intuition, and they can enlarge their experience, select and review only what they need as many times as they want. They can interact with their computer freely and study for themselves at their level. The evaluation standard of CD-ROM Title is composed of easiness in use, fit for young children, its educative value, entertainment, design, and price. CD-ROM Title-assisted teaching help young children develop their creativity, language, sociability, and have anti-bias way of thinking We can get the latest information very quickly and exactly without restriction of time and place through Internet site, and communicate with each otherbetween computer and user, as well as with one another among children, their teachers and parents. Also they can feel free from social prejudices. The children who visit good Internet site frequently and study English get interested in English speaking world. They also foster gradually self-determination, concentration, and strong accomplishment desire by enjoying studying English through Internet sites. Therefore, it is the best way to improve our English education environment to use multimedia such as CD-ROM Title and Internet sites of quality. That is why there is real English in them, which native speakers use in their daily life.

괄루근의 Glycosidase들에 대한 연구

류병호,양승택,조은정,김동수,문윤희,김희숙 慶星大學校 1996 論文集 Vol.17 No.2

Several glycosidase activities, α-galactosidase, β-galactosidase and β-fucosidase and their isozymes were founded in Trichosantes kirilowii root, Trichosantes radix. The activities of α-glucosidase, β-glucosidase and α-fucosidase were also assayed but were not detected. Those glycosidases were isolated and partial purified glycosidases by acid-treated Sepharose-6B, anion exchange Mono-Q HPLC, DEAE-Sephacel, butyl-toyopearl hydrophobic column chromatographies. However, these glycosidases need to be purified more homogeneous and characterized.

N/O/N 박막 다이아프레임을 이용한 광섬유 압력센서의 제작 및 그 압력특성

유양욱,김명규,박동수,김창원,김진섭,이정희,손병기 경북대학교 센서기술연구소 1995 센서技術學術大會論文集 Vol.6 No.1

The 0.6 μm N/O/N triple layer, Si_(3)N_(4)(150 nm)/SiO_(2)(300 nm)/Si_(3)N_(4)(150 nm), was deposited on silicon substrate and the N/O/N thin film diaphragm was formed using anisotropic etching technique. The stress of the formed diaphragm was very small with temperature variations. Combining this diaphragm and the optical fiber, intensity-type pressure sensor was fabricated and its pressure characteristics were investigated. The relation between the optical output power, inversely proportional to the deflection of the diaphragm, and the applied pressure was almost linear in 0~77 torr range.

추측과 반박을 통한 수학적 발견논리

류시규,김희정 동국대학교 교육연구원 2000 교육문제연구 Vol.15 No.-

For a long time the mathematical knowledge was understood as the group of the eternal truth, proved through the deductive inference of the absolute truth. Therefore, we regarded as all the mathematical prepositions as the absolute truth and any refutation or any presentation of objection was not necessary. Such point of view affected the mathematics education and caused the students to regard the mathematical knowledge as an informative one acquired from the accurate verification rather than from critical approach. Thus the mathematical knowledge were provided mechanically to the students in rather memory-oriented way, which, as a result, becomes one of the main reasons that the students regard the mathematics as an uninteresting and dull learning. In 20th century, however, lots of endeavors were made to improve such mathematics education. As one of the studies, more attention started to be paid to not only the informative aspect of mathematics but the methodological aspect and the importance of speculation. Affected by G. Polya, an mathematician who studied this matter and K. Popper who ever led the critical falsificationalism, Lakatos insisted that the mathematic education should provide the students with more opportunity to consequently get into more reasonable knowledge, rather than just a simplified calculation-oriented class or mechanical thinking, like the mathematics has been developed steadily all through long historical steps. Lakatos also argued that such improvement in inference capability can be accomplished through comparing the opinions by discussions with others and reaching more mutually reasonable point. And it will correspond to the pursuit of rationality, ultimate goal of mathematics education. In this paper, therefore, we would like to examine into the features of mathematical knowledge and its progressive process which Lakatos ever stated and then I would try to apply it to the models of mathematics class.

자연형 하천복원계획 수립을 위한 생물상 조사 및 분석

사공정희,류연수,나정화 경북대학교 농업과학기술연구소 2006 慶北大農學誌 Vol.24 No.-

The purpose of this study was a biota research and analysis for Close-to-nature stream restoration planning of Shinchun. The summary of this study is as follows; 1) The vascular plants in research area recorded of 45 species and insect fauna recorded of 34 species of 8 orders. As a result of table of community classification, the communities were two group; Quercus variabilis community(I), Pinus densiflora-Quercus variabilis-Quercus dentata community(II). 2) As a result of analysis on correlation of tree species, the level of significance in positive correlation between Quercus dentata and Corylus heterophyll aindicated 1% and between Pinus densiflora and Lespedeza bicolor also indicated 1%. 3) As a result of DBH analysis, it is expected that Quercus variabilis and Quercus dentata will dominateover other species in competition and its succession continuously maintains from now on in community I. In community II, it is assumed that there is a high possibility of changing into community of Quercus such as Quercus mongolica, Quercus dentata, and Quercus variabilis. 4) As a result of analysis on insect fauna, insect fauna consists of 94% of whole species as 32 species, 23 families, 8 orders. And 7 species, 7 families 4 orders was found in highly urbanized area, the vicinity of Sang-Dong bridge. 5) As mentioned above, Based on A biota fundamental research, Close-to-nature stream restoration planning were full of suggestions: i) Designating ecosystem preservation area, ii) Making Close-to-nature stream revetments, iii) Making pool-and-riffle, vi) Making decks for observation and walks for nature experience, v) Creating wetland biotope. Through these methods, it is necessary to promote bio-diversity and lead people to the space for eco-learning.

상온 유동층에서 층내 수평전열관의 마모특성

한근희,김용철,류정인,선도원,민병무 한국화학공학회 2004 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.42 No.2

대부분의 유동층 연소장치에서 충물질과 비산된 입자에 의한 충내 전열관과 water wall의 전열관 표면의 마모는 계속적으로 골칫거리가 되고 있다. 본 연구는 단면적이 0.15m×0.30m인 상온유동층장치에서 마모하기 쉬운 아크릴 관을 사용하여 유동층에 파묻힌 전열관에 대하여 유동조건과 전열관의 배열효과에 대한 실험적인 연구를 나타냈다. 유동층의 단면적은 0.15m×0.30m이고 높이는 1.0m이다. 층물질은 강모래 평균입도 0.73, 1.24mm의 두 가지와, 평균입도 0.9mm의 무연탄 희재를 사용하였다. 유동층 높이는 0.45m이었다. 마모실험은 조건마다 100시간동안 유동화속도 1.2-1.8m/s 까지 변화시켜 수행하였다. 실험결과 마모율은 유동화속도가 증가할수록 증가하였고, 공기분배기로부터 떨어진 거리가 증가할수록 증가하였다. 그리고 공기분배기로부터 높이 0.6m의 비산영역에 위치한 전열관에 심한 마모를 나타냈다. 전열관의 원주방향에 대한 마모경향은 다른 부분과 비교하여 시계방향으로 4시 방향에서 8시 방향까지 심한 마모가 나타났고, 특히 5시 방향과 7시 방향은 심한 마모를 보였다. Erosion of in-bed tubes and water wall heat transfer surfaces by bed materials and elutriated particles have persistently plagued most fluidized bed combustion (FBC) systems. This papere presents a systematic experimental study of the effects of tube arrangement and flow condition on embedded tube erosion by using erosion-prone acrylic cylinders in a 0.15m×0.30m bench-scale cold fluidized bed. The bed material was two different sizes of river sand and anthracite ash with the average diameter of 0.73, 1.24, 0.90㎜, respectively. The static bed height was 0.45m. Erosion test was performed with the variation of fluidization velocity of 1.2 to 1.8m/s for 100 hours per set. The result shows that the erosion rate increased with fluidizing velocity, with distance from the distributor. The erosion was severe at the tube located in the splash zone of 60㎝ above the distributor. The trend with radial direction shows severe erosion at the 4-8 o'clock clockwise compare to other area, especially 5 and 7 o'clock clockwise.

하수슬러지의 유동층 소각 특성

한근희,박영성,류정인 대전대학교 산업기술연구소 1999 산업기술연구소 論文集 Vol.10 No.2

The incineration characteristics of sludge sample were investigated in a fluidized bed incinerator(φ 0.2m, 3.0m height). The sewage sludge with heating value of 2480kcal/kg, and 22% moisture content was used as sludge sample. The characteristics of sludge incineration in terms of combustion efficiency, axial temperature profile and heavy metal analysis of sludge and ash were studied. The combustion efficiencies were found to be no less than 99%, which indicates that the fluidized bed incinerator can be very effectively applied to sewage sludges. It was also found that the heavy metal components were remained in the sludge ash after incineration due to the relatively low combustion temperature of the fluidized bed incinerator.

성인원외폐렴의 원인미생물에대한 전향적 다기관 연구 : 성인원외폐렴의 원인으로 세균의 역할을 중심으로

우준희,강재명,김양수,신완식,류진홍,최정현,김양리,정희진,어수택,박춘식,정문현,정기석,이찬주,류지소 대한감염학회 2001 감염 Vol.33 No.1

Background : Communite-acquired peumonia (CAP) is one of the leading causes of mortality and morbidity. Despite progress in diagnostic techniques and treatments, management of pneumonia remains challenging, because the precise etiology remains uncertain in as many as 49% of cases. The limitaions of identifying etiologic agents make it necessary to use empiric antibiotics in almost all patients, and furthermore emergence of antibiotic-resistant organisms pose difficulties to the selection of an empiric antibiotic regimen. For the optimal choice of empirical antibiotics, we should know the frequency of etiologic agents and antimicrobial resistance rates in the community. Methods : A prospective multicenter study of community-acquired pneumonia in Korea was carried out between May 1997 and April 2000. The microbiologic diagnosis was based on the results of sputum culture, blood culture and pleural culture. Results : Five hundred eighty eight cases of community-acquired peumonia in 562 patients admitted to the hospitals. The mean age was 59.9 with male predominance (58.3%), and 370 (63%) had underlyin gillness. The etiologic agents were identified in 38.3%, and the list of individual agents, in decreasing order, was Streprococcus pneumoniae (21.7%), Klebsiella pneumoniae (14.8%) Pseudomonas aeruginosa (9.8%), Staphylococcus aureus (9.5%), viridans group streptococci (5.7%), Enterobacter cloacae (4.2%), Hemophillus Influenza (3.8%), The rates of admission to the intensive care unit was 10.4%. The motality was 7.1%. Susceptible rates of S. pneumoniae to penicillin was 36.6% and showed multidrug resistant. Forty percents of S. aureus were methicillin-resistant S. aureus. K. penumoniae were susceptible to cephalosporin and quinolone. Conclusion : In Korea, S.pneumoniae is the most important agent causing community-acquired pneumonia. Susceptible rates of S. pneumoniae to penicillin was 36.6% and showed multidrug resistant. Gram negative bacteria such as K. pneumoniae, P. aeruginosa showed high incidence when compared with that of other countries. Most of them had underlying diseases including bronchiectasis and chronic obstructive pulmonary diseases. (Korean J Infect Dis 33:1∼7, 2001)

디자인혁신에 있어서 유사성 판단에 관한 연구 : 의자, 시계, Facade를 중심으로 concentrated on the identity of chair, clock, Facade

한정완,차경준,오희권,류제선 한국디자인과학학회 1999 디자인과학연구 Vol.2 No.-

신제품이 개발 출시되어 크게 성장 할 수 있다는 것은 그것을 채택, 수용해 줄 수 있는 혁신층과 조기수용자 층의 소비자 구조를 가지고 있어야만 한다. 신제품 수용자의 조기 확보는 신제품 개발에 소요된 비용은 조기에 보충할 수 있고, 많은 고객을 확보하여 매출의 증대가 용이하고, 마케팅비용의 감소를 가져올 수 있으며. 시장에서 리더십을 가짐으로써 효과적 시장 진입이 되기도 한다. 이와 같이 신제품의 수용과 확산의 연구에서 혁신성이 차지하는 중요도가 매우 높기 때문에 많은 관심을 끌어 온 것이 사실이다. 그러나 이러한 혁신과 수용성 연구의 중요성에 비추어 혁신성에 대한 발견 사실의 모호성과 함께 관련변수에 관한 끊임없는 논의가 지속되어 왔고, 동시에 혁신성 연구가 지금까지 취하여 왔던 방향과 주제에 관련해서도 많은 비판이 이루어져 온 것도 사실이다. 이러한 관점에서 본 연구에서는 아직 논리적으로나 실체적으로 방법론이 확립되어 있지 않은 디자인 혁신의 개념을 새롭게 정립하고 그 특징과 요소를 분석하고 객관적인 기준으로 변한 할 수 있는 지표를 찾는다. 또한 디자인 혁신에 있어서 유사성 판단에 관한 실험을 통해 제품 집단의 유형과 기준을 명확히 파악하고 각 샘플의 공간 해석과 함께 시자극적 특성을 정량적으로 평가하는 실험적 이론으로 사용하고자 한다. 이는 디자인에 있어서의 혁신을 인지하고 각 제품 속에 속한 샘플들을 특징별로 지각하는 보다 과학적인 디자인 접근방법에 관해 새로운 방향을 모색할 수 있도록 하였다. If a new product Is devised and to be sold, it Should possess the group of people who are inclined to change and accept the product, and the group of consumers who can buy them. If you occupy the consumers to buy the products earlier, you car make up with the expenditure that you have spent to devise and make products, facilitate the raise of the sales, decrease the marketing expenditure, and have effective access to the market by going ahead of others. Like this the Innovation has great influence in the accepting and spreading of the products. However in spite of these Innovation and acceptance, there have kept the ceaseless disputes about finding the Innovation and related function, at the same time the study of innovation has been criticized about the direction and the theme we have taken until now. From this point of view, the methodology has not been established In the area of logic and its reality, and this study tries to set up the concepts and analyze the characteristic and the elements and find the standard to change those characteristics and elements in to objective standard. In addition, through the judgment of the similarity In the design innovation, it tries to identify clearly the types and the standard of the set of the products, Interpret the space of each sample, and use it as the experimental theory to evaluate the visual characteristics, Thus it can perceive innovation of the design. perceive the characteristics of the samples in each products, and find the new direction in the more scientific access to design.

Platinum sensitive 재발성 난소암에서 Carboplatin/Paclitaxel의 효과

장혜진,유희석,임윤경,문세희,장기홍,이정필 대한부인종양 콜포스코피학회 2003 Journal of Gynecologic Oncology Vol.14 No.4

목적 : 재발성 난소암에서 platinum 감수성을 기준으로 2차 항암요법으로 사용한 Carboplatin과 Paclitaxel의 효과를 알아보기 위하여 본 연구를 진행하였다. 연구방법 : 1998년 1월 1일부터 2003년 8월 31일까지 만 5년 8개월 간 아주대학교병원 산부인과에 재발성 난소암으로 입원한 환자 중에서 최초 수술로 난소암을 확진한 후 Cisplatin 또는 Carboplatin 등 platinum 제재가 포함된 항암치료를 받은 후 6개월 이후에 재발한 환자 29명을 대상으로 Carboplatin은 5 AUC를 그리고 Paclitaxel은 175 mg/m^(2)를 투여하였으며, 최소 3회에서 최고 16회까지 투여하였다. 치료효과의 판정은 CT, MRI, Ultrasonography등 영상진단상 암종괴의 크기가 완전히 소실되었을 경우를 완전반응(complete response)으로, 50%이상 감소되었을 경우를 부분반응(partial response)으로, 50% 미만으로 감소되었거나 20% 미만 증가하였을 경우를 불변(stable disease)으로, 그리고 20% 이상 증가되었을 경우를 진행(progressive disease)로 정의하였다. 결과 : 대상 환자에서 완전반응은 6명(21%), 부분반응은 11명(38%), 그리고 불변은 5명(17%)로 전체 반응율 (overall response rate)은 59% 그리고 임상적 유용성(clinical benefit=CR+PR+SD)은 76%이었다. 결론 : 재발성 난소암환자에서 기왕에 사용한 Platinum 제재에 민감한 환자에서는 Carboplatin과 Paclitaxel의 병행 투여가 효과적이었다. Objective : To ascertain the effect of Carboplatin and Paclitaxel combination as a second line regimen for recurrent ovarian carcinoma based on platinum sensitivity. Methods : From January 1st, 1998 through to August 31st, 2003, 29 patients were retrospectively reviewed who had previously underwent primary cytoreductive surgery and adjuvant chemotherapy with Cisplatin or Carboplatin for ovarian carcinoma, and who had later recurred during follow up. All 29 patients had recurred at least 6 months after therapy, and thereafter received second line chemotherapy consisting of Carboplatin (5 AUC) and Paclitaxel (175 mg/㎡) for a minimum of least 3 cycles and a maximum of 16 cycles. Treatment efficacy was assessed by imaging studies including Computerized tomography, Magnetic Resonance Imaging, or Ultrasonography. Complete response was determined as complete disappearance of tumor, partial response at least than 50% reduction in tumor volume, stable disease as less than 50% reduction or less than 20% increase in tumor volume, and progressive disease as more than 20% increase. Results : There was complete response in 6 (21%) patients, partial response in 11 (38%), stable disease in 5 (17%), showing an overall response rate of 59%. The clinical benefit (CR+PR+SD) was 76%. Conclusion : The combination of Carboplatin and Paclitaxel administration seems to be an effective mode of second line therapy in patients with recurrent ovarian carcinoma who had been sensitive to prior platinum based chemotherapy.