The Nature of Scientific Methods and its Implication for Inquiry Activities in Science Classrooms

Oh, Phil-Seok 이화여자대학교 사범대학 교과교육연구소 2004 East west education Vol.21 No.-

In this article, the nature of scientific methods was examined in terms of four methodological aspects of science, including getting data, discovering a law, inventing a theory, and predicting and testing. The investigation revealed that although the inductive and deductive logics played some roles in the course of scientific inquiry, the abductive method was employed in the process of discovering a law and inventing a theory. Based on this, it was suggested as an implication for science education that the abductive method should be used as a model for organizing student inquiry activities in science classrooms.

독일 3월 혁명 시기의 슐레스비히-홀스타인(Schleswig-Holstein) 문제 인식: 가톨릭 보수 언론을 중심으로

김필영 ( Phil Young Kim ) 대구사학회 2011 대구사학 Vol.103 No.-

Interpretation of the Schleswig-Holstein Conflict in the German Revolution of 1848 -Focusing on the Catholic Conservative Press Kim, Phil-young [Abstract] The Schleswig-Holstein, under Danish rule, became one controversial issue of the five border conflicts in which the Frankfort Parliament was involved, when it intended to build a new german national state in 1848. When Danish nationalists declared to incorporate Schleswig into the Denmark, German nationalists in Schleswig-Holstein protested against it. A war broke out between two groups in 1848 and until 1850. This war was supported by German nationalists in Germany and in Frankfort Parliament and it was declared as an important agenda to the German nation by the latter. This study intends to research how the Catholic conservative press in Germany interpreted this war, in the sense of the German nationalism or a revolt against a legitimate Prince. It is meaningful to know this, because the Catholic conservatives, loyal to the Pope in Rome, were suspicious of their German nationalistic consciousness. Research results indicate that the German Catholic conservative press interpreted the Danish-German war on the one hand as a revolt against a legitimate Prince, but on the other hand as a German national movement. Much of the press shared the warlike enthusiasm for the German nationalism in 1849. It can be said that the Catholic conservative press partially was involved with the German nationalism in some way.

수막암종증에서 임상양상, 뇌척수액 세포진 검사, 신경영상 및 뇌척수액 생화학 표식인자의 비교

이필휴,최일생,김승민,박동철 대한신경과학회 1999 대한신경과학회지 Vol.17 No.1

능동질량감쇠기에 의한 구조물의 진동조절

盧泌成,金在雄 동아대학교 환경문제연구소 1997 硏究報告 Vol.20 No.1

For the control of building to external dynamic forces created by the wind or earthquake, many structural control method has been studied. Among those, a closed-loop feedback control algorithm is proposed for the control of a building using an active tuned mass damper. The passive-control device properties, including the stiffness and damping constants of the tuned mass damper and the gain coefficients of actuator, are derived by minimizing the displacement variance of the building. The results show that the control efficiency of the ATMD based on the velocity feedback depends on the passive-control-device properties assumed. Also, the ATMD with optimal passive properties using complete feedback results in further reduction in the structural displacement, the control force required is smaller using complete feedback.

불포화 폴리에스테르 수지의 물성이 폴리머 콘크리트의 강도에 미치는 영향

이필호,박재근,황보 영,이정우 강원대학교 석재복합신소재제품연구센터 1996 석재연 논문집 Vol.1 No.-

본 연구에서는 폴리머 콘크리트의 결합재인 불포화 폴리에스테르 수지(UPR)의 물리적 성질을 조사하였다. 그 결과는 비중 1.1 g/mL, 점도 3.0 poise, styrene의 함량은 40% 내외이고 산값은 약 20이었다. 본 실험에서 제조된 폴리머 콘크리트의 압축강도는 평균 1,056 Kg/cm², 휨강도는 216 Kg/cm², 인장강도는 110 Kg/cm²이었는데, 이는 시멘트 콘크리트에 비해 비교적 좋은 역학적 성질을 나타낸 것이다. 변동계수는 압축강도의 경우 약 3%, 휨강도의 경우 5%, 인장강도의 경우 6% 내외로서 매우 양호하다. 강도비를 산출하여 본 바 압축강도와 휨강도의 비가 4.9, 압축강도와 인장강도의 비가 9.7, 휨강도와 인장강도가 1.97로서 나타났는데 이는 폴리머 콘크리트의 압축강도는 1000 Kg/cm²를 상회함을 감안할 때 휨 및 인장강도가 상대적으로 큼을 보여주는 결과이다. In this study, effect on the strength of polymer concrete of unsaturated polyester Resin's(UPR) property was investigated. The physical property of UPR was as follows; density 1.1 g/mL, viscosity 3.0 poise, the content of styrene 40%, and acid value 20. The mechanical property of Polymer Concrete was relatively good; compressive strength 1,056 Kg/cm², flexural strength 216 Kg/cm², splitting tensile strength 110 Kg/cm², The coefficient of fluctuation was 3% of compressive strength, 5% of flexural strength, and 6% of splitting tensile strength. The ratios of respective strength were 4.9(compressive strength to splitting tensile strength), and 1.97(flexural strength to splitting strength). Therefore, flexural strength and splitting tensile strength of polymer concrete was relatively big under consideration of compressive strength(1,000 Kg/cm²).

동측 대퇴골 경부 및 간부 골절의 치료 : 15례 분석

정필현,강석,채동주,홍정룡,김종필 동국대학교 경주대학 1997 東國論集 Vol.16 No.1

동측 대퇴골 경부 및 간부골절은 드문 골절로서 초진시 경부골절을 간과하는 경우도 있고 치료에 있어서도 여러 가지 방법이 제시되어져 왔다. 저자들은 1989년 6월부터 1996년 5월까지 경험한 동측 대퇴골 경부 및 간부골절 환자 15례를 대상으로 다양한 방법으로 치험한 예를 분석하였다. 15례중 8례에서 경부골절과 간부골절을 동시에 고정하는 재건금속정으로 치료하였고 전례에서 골유합을 얻었으며 평균 골유합기간은 경부골절 14주, 간부골절 20.5주였다. Ipsilateral femoral neck and shaft fractures present diagnostic difficulties and complex choices as to treatment. We report the result of treating 15 such fractures. High-energy accidents accounted for most of these injuries. There were numerous associated injuries, many requiring operative procedures. Eight of Fifteen patients were treated with Reconstruction interlocking nails. All fractures united. There was no delay in diagnosis of femoral neck fractures, and all healed without avascular necrosis. The use of the reconstruction nail is technically demanding. We conclude that this device gives good results for these fractures.

초끈이론의 무질서한 초팽창우주론

오필렬,박문호 성균관대학교 1990 論文集 Vol.41 No.2

We present a model of chaotic inflation in D=10 superstring theory. Taking account of gluino and Majorana-Weyl fermion condensations and assuming that supersymmetry is broken near planck scale, we add a mass term of dilation field. Also adding casimir energy term to the effective action, we find that chaotic inflation can occur in superstring theory.

인터넷 비지니스의 사업화 전략

이필환,윤문길 한국항공대학교 경영연구소 1999 경영연구 Vol.6 No.1

Due to the increase of the Internet user, a lot of applications are introduced and evolved in the real-world Electronic commerce on the Internet is one of the most important applications which may change the existing procedure for commercial transactions of customer-to- business and business-to-business. In this paper, we focus on the business strategy on the Internet. From the survey and the classification of the types of the Internet business applications, we analyze the overall trend of Internet business, identify the target market of each application business. The advent of lots of the Internet business results in the severe competitions in the industries. Therefore, it is necessary to identify the factors for success of the Internet business, and each company for the Internet business has to seek partners for a strategic alliance to enforce its own competitiveness surviving in the industries. Both a horizontal and a vertical alliances may be considered to each company. In this paper, we analyze the market environment for the Internet business, and suggest a effective strategy for success of it.

부가형용사의 위치문제

이필수 慶北大學校 語學硏究所 1992 語文硏究 Vol.17 No.-

중국사회에 있어서 토지사유제의 출현과 성장 : 춘추시대부터 전한 초기까지

양필승 건국대학교 사학회 1993 建大史學 Vol.8 No.-