두 가족의 가족성 모야모야병 환자 4례

구자성,노재규,박성호,이한보,이용석,윤창호,송치성,송재우 대한신경과학회 1998 대한신경과학회지 Vol.16 No.4

창의적 문제해결을 위한 웹기반 교수-학습 모형과 학습 환경 설계 : 수학교과에서의 예시를 중심으로

구양미,김영수,노선숙,조성민 이화여자대학교 사범대학 교과교육연구소 2006 교과교육학연구 Vol.10 No.1

본 연구의 목적은 지식기반사회의 학습도구로서 그 중요성이 증대되고 있는 인터넷과 웹을 활용하여 창의성 계발을 돕는 교수-학습 모형과 웹기반 학습 환경을 설계하는 데 있다. 본 연구에서 웹은 학습도우미(learning agent)로서 문제해결 학습상황에서 의사소통도구, 발견과 탐색도구, 지식과 경험 구성의 도구로 상정되었다. 즉, 중등 수학교과를 사례로 채택, 문제해결 학습상황에서 생각 5단계 모형(생각 열기, 생각 쌓기, 생각 나누기, 생각 다지기, 생각 펼치기)을 토대로 각 단계별로 문제의 구조 유형에 따른 사고 전략과 이에 상응하는 학습자와 교수자 활동, 웹기반 활동을 포함하는 웹기반 교수-학습 모형을 설계하였다. 설계된 웹기반 교수-학습 모형에 따라 실제 교수-학습활동 계획안을 개발하고, 창의적 문제해결 환경 지원을 목적으로 한 웹사이트를 설계하였다. 본 연구의 결과물인 웹기반 교수-학습 모형과 학습 환경은 창의적 문제해결을 위한 핵심요소로 간주되는 확산적 사고, 비판적 사고 및 교과지식이 조화롭게 활용될 수 있도록 하는데 그 주안점을 두고 있다. The purpose of this study is to design a web-based teaching and learning model and learning environment for creative problem solving in Mathematics. In this study, World Wide Web is considered as a learning agent assisting learning process as communication tools, inquiry tool, and knowledge construction tools in problem solving learning environments. The web-based teaching and learning model was developed based on "Five Stage Thinking Model" that consists of uncover ideas, accumulate ideas, share ideas, ensure ideas, and unfold ideas. According to the steps of the model, a web-based lessen plan on coordinates in middle school mathematics was developed. Finally, a web-based their divergent thinking, critical thinking and subject knowledge for mathematical problem solving creatively. Some sample web pages were suggested for developing a web site based on the purposed model and the lessen plan.

牙山湖에서 大湖湖 沿岸의 淡水湖 連結에 의한 效率的인 水資源 利用方案

구본수,최한규,이성홍 江原大學校 産業技術硏究所 1998 産業技術硏究 Vol.18 No.-

The Asan Bay area Korea is situated in an unbalance or water supply and demand relating to the Ansung, Sapkyo, Dangjin and Youmwha rivers and their estuary reservoirs. The multi-reservoir operation was studied by the Hierarchical Operation Model for Multi-reservoir System(HOMMS) assuming that these four estuary reservoirs were linked to each other in order. The result of this study shows that storage capacity deficiency in 2011 was estimated as 8 MCM in the Sapkyo and 31 MCMin Dae Ho estuary reservoir, respectively. In case of linking four reservoirs, the water deficiency will not occurs in all the reservoirs even if additional agricultural water of 78 MCM/yr was supplied. Total additional water demand for agricultural, municipal and industrial uses was estimated as 321.9 MCM /yr while additional supply by linking the reservoirs was estimated as 160.4 MCM/yr, 50% of additional demand. The remaining 161.5 MCM/yr would be supplied transferring other watershed.

우리나라 중소제조기업의 수출활성화 방안에 관한 연구

구종순,강성찬 충남대학교 경상대학부설 경영경제연구소 1999 경영논집 Vol.15 No.1

IMF구제금융 등 외채 상환을 위해서 수출증대를 통한 무역수지 흑자가 가장 중요한데 수출시장은 축소되고 선진 수입국들의 수입규제는 더욱 강화되고 있는 현실에서는 대기업보다 수출경쟁력이 높은 중소기업 특히 중소제조기업의 수출활성화가 무엇보다도 중요하다. 이를 위하여 개별 중소제조기업들은 기업간 협력을 통한 연계화 추진, 바이어와의 신뢰 확보, 전략적 소수품목 집중, 수출상품은 중간재에 전문화, 시장국의 다변화, 대기업과의 협력방안 모색, 간접수출경로의 이용 등을 추진해야 하며 정부도 수출지원 network 구축을 통한 해외마케팅활동 지원, 대·중소기업 협력관계 적극 장려, 불필요한 각종 규제 철폐, 통상마찰 제거를 위한 적극적인 통상외교활동 수행 등을 통해 중소제조기업에게 실질적 도움이 될 수 있는 방안을 강구해야 한다.

영상처리기술에 의한 사용후핵연료 집합체의 제원 측정

구대서,박성원 한국비파괴검사학회 2002 한국비파괴검사학회지 Vol.22 No.1

수중에서 사용후 핵연료 제원측정 시험의 효율성을 높이고 측정오차를 줄이기 위하여 수중 영상측정방법을 개발하였다. 이 시스템의 모의 핵연료봉 직경 및 측정치는 실제값 기준으로 할 때, 각각 -0.24±0.03mm, 0.34±0.06mm이고 측정 최대오차는 각각 -0.3mm 및 0.4mm 이내였다. 실제 사용후핵연료에 대한 수중 제원측정결과 고리원자력 2호기에서 2주기 동안 연소한 핵연료 집합체 J44의 핵연료봉 직경은 설계치 기준으로 할 때 핵연료봉 상ㆍ하단부 직경은 2.0%, 중앙부의 직경은 3.0% 정도 감소하였으나 핵연료봉의 길이는 0.4% 정도 신장하였다. 고리원자력 1호기에서 3주기 동안 연소한 핵연료 집합체 F02 의 핵연료봉의 직경 및 길이는 핵연료 집합체 J44의 결과와 비슷한 경향을 나타내었다. A pool image processing measurement method has been developed to improve the examination efficiency and to minimize the errors of dimensional measurements of spent fuel assemblies in pool. Diameter and length measurements of mock-up fuel rods using the image processing system are 0.24±0.03mm, 0.34±0.06mm on the basis of the true value and their maximum errors are within -0.3 and 0.4mm, respectively. According to the result of dimensional measurement of spent fuels in pool, the upper and lower part diameter and mid part diameter of fuel rods of the J44 fuel assembly irradiated for 2 cycles in the Kori-2 nuclear reactor were decreased by about 2.0 and 3.0% in comparison with design values, respectively. The length of fuel rods was elongated by about 0.4%. The change behavior of diameter and length of fuel rods of the F02 fuel assembly irradiated for 3 cycles in the Kori-1 nuclear reactor showed a trend similar to the results of J44.

超急冷 Ni_60B_40 合金의 構造 및 熱的 安定性에 관한 硏究(Ⅰ)

具滋洛,吳明錫,林榮彦,조성석 충남대학교 공업교육연구소 1981 論文集 Vol.4 No.2

The phase transformation and structure of rapidly quenched Ni_60B_40 alloy has been studied by x-ray diffraction and electrical resistivity measurements. The first step in the transformation of rapidly quenched Ni_60B_40 alloy was found to be Am+O-Ni_4B_3+m-Ni_4B_3 → O-Ni_4B_3+m-Ni_4B_3. The mechanism of transformation has been determined by the initially present microcrystallites in the amorphous matrix. The diffusional growth has three steps of growth of a disc with constant thickness, thickening of a disc and growth in axial direction only. The activation energy for crystallization is 43㎉/mole in the first step, 57㎉/mole in the second step and 55㎉/mole in the third step.

신경학적 증상을 동반한 Henoch-Scho"nlein 자반증 1례

어성훈,구현회,하태선 충북대학교 의과대학 충북대학교 의학연구소 2003 忠北醫大學術誌 Vol.13 No.1

Henoch-Schonlein 자반증(HS 자반증)의 원인은 아직 잘 알려지지 않았으나, IgA를 함유하는 면역 복합체가 침착하는 전신 질환으로 세정맥, 세동맥, 모세 혈관과 같은 작은 혈관의 손상을 초래하는 전신성 혈관장애로 알려져 있다. 모든 연령에서 발생 할 수 있으며, 소아가 성인에 비하여 더 많이 발생하고 피부, 복부, 관절, 신장에서 증상이 나타나며, 뇌신경학적 증상은 드문 것으로 알려져 있으며 심각한 결과를 초래할 수 있다. 저자들은 전형적인 HS 자반증의 환아에서 뇌신경학적 증상을 보인 1례를 문헌 고찰과 함께 보고하는 바이다. Henoch-Schonlein purpura(HSP) is a multisystem disorder affecting predominantly the skin, joints, gastrointestinal tract and kidneys, although other organs are rarely involved. Neurological complications are rare during the course of HSP. We report a 8-year-old boy with HSP who presented with neurologic abnormality (neck stiffness, headache, vomiting, fever, increased WBC in cerebrospinal fluid, which dramatically resolved with clinical improvement.

Coagulum Pyelolithotomy 치험 1례

조성중,설종구 충남대학교 의과대학 지역사회의학연구소 1987 충남의대잡지 Vol.14 No.1

Successful removal of renal calculi remains one of the most troublesome challenge for urologists. In many cases, recurrent stones are due to incomplete removal of renal stones during the operation. Coagulum pyelolithotomy is mainly indicated in cases of multiple stones, soft, crumbly stone or stones, small, mobile caliceal stones and as an aid to fixing caliceal stone or stones in the calix prior to partial resection of the kidney or nephrolithotomy. For suitable coagulum material, we used cryoprecipitate and commercial bovine thrombin diluted a 20 unit/ml concentration and 3%CaCl₂in a 25. 4 : 1 ratio. Experience of one case with coagulum pyelolithotomy and its use are presnted.

슈에이 엔도 건축에 나타나는 프랙탈 기하학의 형태생성 알고리즘에 관한 연구

이성구,김광배 대한건축학회 2004 대한건축학회논문집 Vol.20 No.6

Even until recently, the only tool for designers to express their architectural forms has been Euclid geometry. However, new attempts have been made by contemporary designers to interpret the phenomenological complexity of the modern world and environment, and they realized that Euclid geometry is limited in representing full extent of their interpretation, and the need of a nonlinear approach as the presentation method to represent the intricacy is inevitable. The fractal theory, as an expressed form of chaos, now influences arts, music, economics, and other areas, let alone the science and mathematics. And this theory is being applied by some contemporary architects to generate the architectural forms. Fractal geometry is composed of self-similarity, randomness, irregularity, and unpredictability, and the character of its form composition can be described as scaling and skew, overlapping, repetition and gradation, and so on. They are diversely applied to modern architectural works and concepts. Especially, they appear in the Shuhei Endo's works. The purpose of this study is to understand the form-generating algorithm of the fractal geometry as a rule of nature and to find the value and diverse application methods in Shuhei Endo's works.

전립선 암에서 혈중 인산 효소치의 측정

조성중,설종구 충남대학교 의과대학 지역사회의학연구소 1989 충남의대잡지 Vol.16 No.1

The serum prostatic acid phosphatase(PAP) is a specific tumor market of prostatic cancer than has spread outside the prostate itself and the serum alkaline phosphatase(Alk.P) is a nonspecific tumor market which is usually related to bone metastasis. Herein, we have performed an assay for serum PAP and serum Alk.P in 49 patients with prostatic cancer in conjunction with bone scan. The following results were obtained: 1. Intracapsular prostatic cancer (stage A,B) were 11 cases(22.4%), and extracapsular extension of prostatic cancer (stage C,D) were 38 cases(77.6%). 2. The concentration of serum PAP in prostatic cancer was within normal limit in lower clinical stage but was increased in 53.8% (14 cases) in 26 cases of stage D. The mean value of serum PAP was significantly increased than in control group(benign prostatic hyperplasia) (p<0.05). 3. The concentration of serum Alk.P in bony metastaic prostatic cancer (26 cases) was increased in 61.5%(16 cases) and the mean value was significantly increased than in control group(P<0.05). 4. The incidence of positive bone scan was 53.1% (26 case) in 49 cases prostatic cancer patients. Therefore, the significance of serum phosphatase level for prostatic cancer patients is not the market of detection or the means of staging but a monitor of response to therapy.