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이승국 한국아동교육학회 1999 아동교육 Vol.8 No.1
Education is not accomplished just through learning or modeling because education implies flexibility in the process teaching and learning. The flexibility complies physical punishment among other things. There has been controversies about the justification of physical punishment for a long time. When we find physical punishment unavoidable, we should bear in mind that it should imply "love" for the victim as well as some educational purposes. As a good model of human being, the teacher must influence the student morally in the process of punishing. When we discuss the effects of physical punishment, we should not judge each case with its motif alone nor should we evaluate only the result. We also should not fall into the fallacy of generalizing the effects of physical punishment with some specific cases or small number of instances. Physical punishment has been accepted as a way of education throughout the history in the world. Parents who over--protect their children are hurting the authority of teachers who are at a loss what to do with their students' misbehavior. I suggest that it is desirable to leave the physical punishment to the choice of teachers for the moral or intellectual growth of students, who are becoming less and less strong and intolerant physically as well as mentally these days.I also suggest that teachers and parents should co-operate with each other to establish the educational environment in which we need no punishment.
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태권도 경기중 선수의 발자세 형태별 역습공격기술의 득점 비교분석
문원재,양대승,이승국 韓國體育大學校 1998 論文集 Vol.21 No.-
This study was to obtain such facts as a result of analyzing and observing foot step patterns for quarter final(32 game), the semi-final(32 game) and final matches(16 game) of national championship from february of 1997 untill February of1998. the conclusion of this study is as a follows : In comparing attaking points by foot step patterns in defence attack techinique, a kind of triangle pattern in foot step patterns is getting highest point but there were no significant difference by foot step patterns among defence attack techiniques. However, while there was significant difference in dolryuchaki(p<.05), in one step back dolryuchaki(p<.01) and punching (p<.01) by foot step patterns, there was no significant difference in back kick and double kick by foot step patterns.
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이승국 위덕대학교 산업기술연구소 2004 산업기술연구소 논문집 Vol.8 No.1
물리 계에 존재하는 대칭성과 연관된 보존량에 관한 수학적 정리인 Noether정리를 간단한 미분연산을 통해 보이고, 결과를 시간과 공간의 대칭문제에 적용하였다. We present a simple method to derive the results of Noether's theorem. It is then used to generate constants of the motion associated with Lagrangians possessing certain transformation properties.
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이승국 한국물리학회 2002 새물리 Vol.44 No.3
The U(1) dual fiber bundle formalism of electromagnetism is discussed. We see that electromagnetism can equally well be described in terms of either formalism. 자기류(magnetic current)의 존재는 맥스웰 방정식의 이중변환 불변성을 보여주며 전기전하의 양자화에 대한 이해를 돕는다. 이는 1930년대 Dirac에 의해 자기전하 $g_{M}$을 갖는 자기홀극의 가정으로부터 시작되었다. 그는 벡터 퍼텐셜의 특이점들로 만들어진 무한히 긴 끈의 끝에 자기홀극을 가정하는 형식을 빌어 이를 설명하였으며 전기전하와 자기전하 사이에 $qg_{M}$=${{1}\over{2}}n\hbar{c}$, $n$:정수의 관계가 만족됨을 보였다\cite{1}. Schwinger는 무한히 긴 끈의 중심에 자기홀극을 위치시키는 형식을 통해 $qg_{M}$=$n\hbar{c}$의 결과를 얻었다\cite{2}. 그 뒤 Wu와 Yang은 특이점 끈을 제거하고 단순한 직교공간의 일반화를 의미 하는 수학적 이론인 bundle이론을 이용하여 자기홀극이 U(1)을 structure group으로 갖는 non-trivial principal fiber bundle로 표현됨을 보였다. 즉, 자기홀극에 의한 벡터 퍼텐셜을 정의하기 위해 최소한 둘 이상의 open set이 필요함을 보였다\cite{3}. 막스웰 방정식과 로렌츠 방정식은 자기홀극이 존재할 때 다음의 이중성 변환에 대해 불변이다
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디지털 사진을 이용한 MRD1의 계측과 새로운 위눈꺼풀 올림근 근력 측정법의 제안
이승국,박성규,백롱민 대한성형외과학회 2006 Archives of Plastic Surgery Vol.33 No.4
Purpose: The history of biometry dates back to ancient Greek. The ideal body ratio from biometry is used as a guideline in many works of art. Biometry is also used as a medical standard to determine normal or abnormal. Since the biometry of face is so complicated, many surgeons tend to regard preoperative evaluation as a bother and substitute medical records with some photographs. We introduce a new method to measure MRD1 and levator function using digital photographs, which becomes widely used lately.Methods: MRD1 can be measured with the primary- gaze-view photo which is magnified by PhotoshopR 7.0.1. The distance from coneal reflex of ring flash to upper eyelid margin is converted to mm-unit using the piece of ruler attached on the patient's face. Levator function can be measured with up-gaze-view photo and down-gaze-view photo which are superimposed on another. The excursion distance of upper eyelid margin (a) and the excursion distance of eyebrow (b) are measured respectively. The levator function can be assessed through subtraction of two values (a-b). This method is simple and precise and can be applied directly to patient without photos.Results: Using magnified digital photos and computer, this method can reduce personal error and instrumental error. Taking some digital photos doesn't take long time, so it can reduce the effort of preoperative evaluation and discomfort of patients.Conclusion: Digital photo-biometry is useful for retrospective study. Especially reducing personal error, it is useful when the number of specimens is huge. New levator function test is much more useful for Asian- specific eyes than Berke's method allowing frontalis muscle compensation.
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