• Journal of Korean Elementary Science Education
• /
• v.41 no.2
• /
• pp.199-216
• /
• 2022

This study explored the possibility of introducing modern physics into the elementary school science curriculum. The study discussed the need of introducing modern physics to elementary school students and examined the results of certain projects and studies on teaching modern physics to elementary school students. Furthermore, this study proposes several teaching and learning techniques to introduce modern physics into the elementary school science curriculum. Modern physics can be linked to various everyday situations experienced by students and can increase their interest and curiosity in science. Additionally, introducing modern physics to elementary school students who are yet to establish a background on the classical view of nature can help them build a new perspective. Recently, several global projects to introduce modern physics at the elementary level have also reported positive results regarding the increase in student understanding and interest in modern physics. The study briefly proposed specific topics and teaching and learning techniques that could be suitable for the elementary school level. These proposals are expected to advance discussions on the possibility of introducing modern physics. However, appropriate follow-up studies are warranted to confirm the possibility and effectiveness of this initiative.

• Journal of The Korean Association For Science Education
• /
• v.40 no.3
• /
• pp.253-269
• /
• 2020

This study aims to develop items to diagnose pre-service physics teachers' understanding of the conceptual knowledge of modern physics, based on the achievement criteria presented in the 2015 revised national science curriculum, and to identify the validity and reliability of the newly developed items. Data were collected from 467 pre-service physics teachers in the Physical Education Department or Science Education Department (Physics Education Major) of 15 universities across the nation. In this study the content validity, substantive validity, the internal structure validity, generalization validity, and the external validity proposed by Messick (1995) were examined by various statistical tests. The results of the MNSQ analysis showed that there was no nonconformity in the 23 items. The internal structure validity was confirmed by the standardized residual variance analysis, which shows that the 22 items was unidimensional. The generalization validity was confirmed by differential item functioning (DIF) analysis about groups lectured or not modern physics/quantum mechanics. In addition, item analysis and test analysis based on classical test theory were performed. The mean item difficulty is 0.66, mean item discrimination is 0.47 and mean point biserial coefficient obtained was 0.41. These results for item parameters satisfied the criteria respectively. The reliability of the internal consistency of the KR-20 is 0.77 and the Ferguson's delta obtained was δ = 0.972. By Rasch model analysis, the item difficulty (item measures) was discussed.

• Journal of the Korean Magnetics Society
• /
• v.7 no.6
• /
• pp.334-339
• /
• 1997

센서는 어떤 물리 .center dot. 화학적량을 다른 물리 .center dot. 화학적량으로 변환시키는 기능의 소자를 통칭하는 용어로써 그 범위가 매우 넓으며, 현대 산업사회에서 전기 .center dot. 전자공학의 반전과 더불어 센서가 더욱 중요시되고 있다. 특히 대부분의 센서가 피측정 물리 .center dot. 화학적량을 전기적 신호로 변화 시키는 기능으로 정밀측정, 생산자동화 및 자동제어등에 다양하게 사용되고 있다. 센서는 원리적 측면에서의 분류와 센서의 기능적 측면으로 분류방법이 있다. 센서 관련 학문적 연구면에서 보면 센서의 원리적 측면에서의 접근이 용이하며 센서를 사용하는 산업체나 사용자의 입장에서는 센서의 기능적 측면 즉 피측정 물리 .center dot. 화학적량의 종류에 따른 분류가 편리하다.

• Journal of the Korean Institute of Traditional Landscape Architecture
• /
• v.31 no.1
• /
• pp.108-117
• /
• 2013

Modern city doesn't have its own identity that differentiates itself from others despite the fact that each city has a historical value. This is due to the demolition of historical and regional values. As such problems are connected to urban problems, they become even more serious. Thus, the researchers of this study set Gyeongbokgung(Palace) as an object to look into landscape factors and found out the relations between psychological variables and preference. Then, the researchers analyzed the quantitative relations between the physical attributes of historic cultural landscape and human response. As such, the researchers aimed to set and propose a confirmed standard in terms of identity and regional & historical values of historic cultural landscape. Since this study was performed with an object of historic cultural landscape that was reproduced based on original landscape in the past, a future study should be on the difference in preference based on the proportion of modern landscape. Based on such studies, a new plan should be made for forming the urban historic cultural landscape.

• The Science & Technology
• /
• no.10 s.437
• /
• pp.34-37
• /
• 2005

• Journal of Science Education
• /
• v.44 no.1
• /
• pp.112-121
• /
• 2020

The photoelectric effect is a representative phenomenon explaining the particle nature of light and is an important theme that led to the transition from classical physics to modern physics. Although the secondary school curriculum deals with the photoelectric effect, teachers and students are often confused with terms because the explanation of the 'light intensity' is different from that of electromagnetic waves. Hence, this study examines how modern physics textbooks explain the intensity of light through photon model. We analyzed the photoelectric effect unit of 10 modern physics textbooks. Results show that there are two different types of representation on 'light intensity.' Especially those two different types were found even within a textbook. Modern physics textbooks do not seem to provide a unified presentation of the light and cautions to describe the photoelectric effect and its interpretation are suggested for teaching light intensity in modern physics.

• (The)Study of the Eastern Classic
• /
• no.32
• /
• pp.215-244
• /
• 2008

This article's aim is to criticise ontological physicallism, supervenience, and eliminativism on theory of mind-body relation, and to present Confucian theory of mind-body relation as an alternative. Confucianism on theory of mind-body relation. Ontological physicallism reduce 'the psycho' to 'the physical'. Therefore, Physicallism as theory of mind-body relation reduce mind to physical body. Mind-Body supervenience theory insists property co-variation and dependency of mind-body. Eliminative materialism is to eliminate 'the psycho'. But confucianists believe in reality of the human mind-heart & it's nature. Confucianism is to establish the mina-heart & it's nature as real. Confucianism can be an alternative of physicallism, supervenience, and eliminativism on theory of mind-body relation. And Confucian's opinion differs from theory of the substance and phenomenalism.

• PNF and Movement
• /
• v.10 no.3
• /
• pp.39-44
• /
• 2012

Purpose : This study aims to analyze the effect of abdominal respiration on back pain of an Elementary Schoolchild. Methods : The data was collected from April 9 to April 27. We analyzed the descriptive statistics and paired t-test by SPSS 12.0 for windows. Results : The results of the study were as follow : The comparison of change in visual analogue scale showed effective differences before and after diaphragmatic breathing exercise. Conclusion : Thus, this study indicates that have a positive effect on Back Pain of an Elementary Schoolchild. Further trials, which give attention to these parts, are needed before any firm conclusions may be made.

• Physical Therapy Korea
• /
• v.7 no.4
• /
• pp.47-55
• /
• 2000

요통은 산업화된 현대사회에서 흔히 발생하는 질환이다. 요통의 다양한 원인 중에서도 척추의 정상 가동범위를 넘은 불안정성이 요통의 한 원인으로 보고되고 있다. 이 문헌고찰의 목적은 요추 부위의 안정성을 부여하는 운동 프로그램 후 근육 기능의 강화, 통증의 감소를 보고한 논문들을 비교, 분석하는 것이다. 그리하여 요통의 한 원인인 척추의 안정성을 증가시켜 요추 부위의 통증을 감소시키고 기능을 향상시키는 운동 프로그램의 효과를 입증하는 것이다.

• 전기의세계
• /
• v.38 no.3
• /
• pp.19-25
• /
• 1989

Observer에 의한 상태추정방식을 사용하여 실제 플랜트제어를 구현하는 방법을 살펴보고자 한다. 제어분야에 있어서 디지탈화는 컴퓨터기술의 진보와 함께 꾸준히 발전하여 왔으며 산업의 여러 현장에서 그 우수성이 입증되고 있다. 종래의 아나로그제어에 전적으로 의존하고 있던 플랜트제어도 아나로그 방식을 디지탈화한 여러 제어방식이 출현, 현재 점차로 적용되고 있다. 더우기 시스템의 파라메타들과 상ㅌ변수 등의 추정에 의한 고도의 현대제어는 그 물리적, 열역학적 해석이 정확히 주어짐으로 보다 우수한 플랜트제어를 가능하게 하고 있다. 미국이나 일본의 경우 시스템 모델링에 의한 플랜트 제어로의 접근이 이미 60년대와 70년대에 걸쳐 활발히 진행되어 현재는 엔지니어링 차원으로의 시도가 이루어지고 있다. 현대제어이론의 발전플랜트에의 적용은 제어의 질의 향상 뿐만아니라 효율향상과 기기수명 측면에서도 그 효과가 상당하여, 앞으로 이에 대한 활발한 연구와 실제 적용을 기대해 본다.