프로그래밍 기반 TPACK 교육 프로그램이 예비 교사의 TPACK에 미치는 효과

김성원,이영준 한국컴퓨터교육학회 2020 컴퓨터교육학회 논문지 Vol.23 No.4

This study aims to verify the effectiveness of the programming-based TPACK educational program developed by Kim and Lee (2019) in improving the TPACK of pre-service teachers. The treatment used ICT-based (control) and programming-based TPACK educational programs (first, second, third, and final cycle) developed through design-based research. TPACK test tools were implemented pre and post treatment, and the test results were analyzed using ANCOVA. Therefore, the TPACK of pre-service teachers who implemented the programming-based TPACK educational program was significantly higher compared to the ICT-based TPACK educational program. Furthermore, through this design-based research, the effect of the developed final educational program on the TPACK of pre-service teachers was particularly the most outstanding. Therefore, it can be concluded that the programming-based TPACK education program developed through design-based research is effective in improving the TPACK of pre-service teachers. 본 연구에서는 김성원과 이영준(2019)에서 개발한 프로그래밍 기반 TPACK 교육 프로그램을 검증하는 연구이다. 연구에서 처치는 설계 기반 연구를 통하여 개발한 프로그래밍 기반 TPACK 교육 프로그램(1차, 2차, 3차, 최종)과 ICT 기반 TPACK 교육 프로그램을 사용하였다. 교육 프로그램의 효과를 분석하기 위하여 사전, 사후에 TPACK 검사 도구를 실시하였으며, 검사 결과는 ANCOVA를 통하여 분석하였다. 적용 결과, 프로그래밍 기반 TPACK 교육 프로그램을 적용한 예비 교사의 TPACK은 ICT 기반 TPACK 교육 프로그램보다 유의하게 높았다. 특히 설계 기반 연구를 통하여 최종적으로 개발한 교육 프로그램이 예비 교사의 TPACK 발달에 가장 효과적이었다. 이러한 연구를 통하여 설계 기반 연구를 통하여 예비 교사의 TPACK 향상에 효과적인 프로그래밍 기반 TPACK 교육 프로그램을 개발하였다는 것을 확인하였다.

한국인 유전성 유방암 연구 이후 국내 유전성 유방암 진료 패턴의 변화

김성원,강은영,안세현,노우철,노동영,정용식,김이수,최두호,서영진,김구상,이정언,이민혁,남석진,문병인,손병호,양정현,염차경,김성용,박수경,김성원 한국유방암학회 2010 Journal of breast cancer Vol.13 No.4

Purpose: The objective of this study was to evaluate the change in the practice patterns for managing hereditary breast and ovarian cancer (HBOC) among Korean physicians after the Korean Hereditary Breast Cancer (KOHBRA) study. Methods: The first survey was performed from July to August 2007, at the initiation of the KOHBRA study, and the followup survey was conducted from July to December 2009. Members of the Korean Breast Cancer Society were invited to participate in the study by e-mail. The 2009 survey was conducted with a self-administered questionnaire concerning HBOC management and was identical to the previous questionnaire. Results: According to the 2009 survey, most physicians (60.0%) tended to draw a pedigree (48.0% in 2007 survey). The rate of genetic test recommendations for patients at risk for HBOC was higher in the 2009 survey (84.0%) than that in the 2007 survey (64.0%). Physicians tended to select a BRCA genetic testing candidate more appropriately than in the previous survey (42.4% answered right in 2007 survey; 74.4% in 2009 survey). Fifteen of 25 participants (60.0%) provided genetic counseling before their patients underwent a genetic test, which was higher than that (40.0%) in the 2007survey. According to the 2009 survey, half of the genetic counseling was being conducted by KOHBRA study research nurses; whereas most of the genetic counseling was conducted by physicians in 2007. Conclusion: The KOHBRA study has played an important role in the appropriate selection of candidates for genetic testing. However, more effort should be placed on improving the pre-test genetic counseling rate.

프로그래밍 기반 TPACK 교육 프로그램이 예비 교사의 수업 전문성에 미치는 효과

김성원,이영준 한국컴퓨터정보학회 2020 韓國컴퓨터情報學會論文誌 Vol.25 No.7

본 연구에서는 김성원과 이영준(2019)의 프로그래밍 기반 TPACK 교육 프로그램이 예비 교사의 수업전문성에 미치는 효과를 분석하였다. 연구 대상은 40명의 예비 교사이며, 두 집단으로 나누어 처치를진행하였다. 실험 집단(n=20)에게는 프로그래밍 기반 TPACK 교육 프로그램을 처치하고, 통제 집단(n=20)에게는 ICT 도구 기반 TPACK 교육 프로그램을 적용하였다. 예비 교사의 수업 전문성 변화를분석하기 위하여 수업 전문성, 교수 효능감, 테크놀로지 통합 자아효능감을 측정하는 검사 도구를 사용하였다. 연구 결과, 통제 집단과 달리 실험 집단은 수업 전문성과 교수 효능감, 테크놀로지 통합 자아효능감이 유의하게 향상되었다. 사전 검사에서는 실험 집단과 통제 집단이 유의한 차이가 존재하지 않았지만, 사후 검사에서는 실험 집단이 통제 집단보다 수업 전문성이 유의하게 높았다. 이러한 결과를 통하여프로그래밍을 활용한 TPACK 교육이 예비 교사의 수업 전문성 발달에 효과적인 것을 확인할 수 있었다. This study analyzes the effects of programming-based TPACK education programs, designed by Kim and Lee (2019), on the teaching expertise of pre-service teachers. The research subjects were 40 pre-service teachers, divided into an experimental group and a control group. The experimental group underwent the programming-based TPACK education program, and the control group used an ICT-based TPACK education program. A test tool was used to measure not only teaching expertise but also teaching efficacy and self-efficacy beliefs about technology integration. As a result of the study, teaching expertise, teaching efficacy, and self-efficacy beliefs about technology integration improved significantly in the experimental group. The pretest showed no significant difference between the experimental group and the control group, but in the post-test, the experimental group showed significantly higher teaching expertise than the control group. These results showed that the programming-based TPACK education program is effective for developing teaching expertise in pre-service teachers.

PRAM을 위한 (GeTe)_x(Sb₂Te₃) (x=0.5, 1, 2, 8) 박막의 물성 및 상변환 특성 연구

김성원,송기호,이현용,Kim, Sung-Won,Song, Ki-Ho,Lee, Hyun-Yong 한국전기전자재료학회 2008 전기전자재료학회논문지 Vol.21 No.7

In this work, we report several experimental data capable of evaluating the phase transformation characteristics of GeSbTe pseudobinary thin films comprehensively utilized as phase change materials. The phase transformation of the GeSbTe thin films was confirmed by XRD measurement from amorphous to hexagonal structure via fee structure except for $Ge_8Sb_2Te_{11}$. In addition, X-ray photoelectron spectra analysis revealed to weaken Ge-Te bond for $Ge_2Sb_2Te_5$ and to strengthen the bonds of all elements for $Ge_8Sb_2Te_{11}$ during the amorphous to crystalline transition. The values of optical energy gap $(E_{OP})$ were around 0.71 and 0.50 eV and the slopes of absorption in extended region (B) were ${\sim}5.1{\times}10^5$ and ${\sim}10{\times}10^5cm^{-1}{\cdot}V^{-1}$ for the amorphous and fcc-crystalline structures, respectively. Finally, the kinetics of amorphous-to-crystalline phase change on the GeSbTe films was characterized using a nano-pulse scanner with 658-nm laser diode (power; $1{\sim}17$ mW, pulse duration; $10{\sim}460$ ns).

3년제 물리치료 교과과정 개발을 위한 수요도 조사연구

김성원,송영화,이경희,황룡,권혜정 대한스포츠물리치료학회 2012 정형스포츠물리치료학회지 Vol.8 No.1

Ag-첨가 Ge₂Sb₂Te₅ 박막의 물성 및 고속 결정화

김성원,송기호,이현용,Kim, Sung-Won,Song, Ki-Ho,Lee, Hyun-Yong 한국전기전자재료학회 2008 전기전자재료학회논문지 Vol.21 No.7

We report several experimental data capable of evaluating the amorphous-to-crystalline (a-c) phase transformation in $(Ag)_x(Ge_2Sb_2Te_5)_{1-x}$ (x = 0, 0.05, 0.1) thin films prepared by a thermal evaporation. The isothermal a-c structural phase changes were evaluated by XRD, and the optical transmittance was measured in the wavelength range of $800{\sim}3000$ nm using a UV-vis-IR spectrophotometer. A speed of the a-c transition was evaluated by detecting the reflection response signals using a nano-pulse scanner with 658 nm laser diode (power P = $1{\sim}17$ mW, pulse duration t = $10{\sim}460$ ns). The surface morphology and roughness of the films were imaged by AFM. It was found that the crystallization speed was so enhanced with an increase of Ag content. While the sheet resistance of c-phase $(Ag)_x(Ge_2Sb_2Te_5)_{1-x}$ was similar to that of c-phase $Ge_2Sb_2Te_5$ (i.e., $R_c{\sim}10{\Omega}/{\square}$), the sheet resistance of a-phase $(Ag)_x(Ge_2Sb_2Te_5)_{1-x}$ was found to be lager than that of a-phase $Ge_2Sb_2Te_5$, $R_a{\sim}5{\times}10^6{\Omega}{/\square}$. For example, the ratios of $R_a/R_c$ for $Ge_2Sb_2Te_5$ and $(Ag)_{0.1}(Ge_2Sb_2Te_5)_{0.9}$ were approximately $5{\times}10^5$ and $5{\times}10^6$, respectively.

訴의 利益에 관한 小考 - 판례를 중심으로 -

김성원 원광대학교 법학연구소 2004 圓光法學 Vol.20 No.-

터보부호를 채용한 QPSK/OFDM 시스템의 성능 분석

김성원,심재옥,김언곤 한밭대학교 생산융합기술연구소 2002 생산융합기술연구소 논문집 Vol.2 No.1

내부 구속 중공 철근 콘크리트 구조를 적용한 풍력 타워의 단면설계

김성원,김정중,한택희 한국방재학회 2016 한국방재학회논문집 Vol.16 No.4

An ICH RC wind tower was suggested and designed for supporting 3.6MW and 5.0MW turbines with the same external diameter of actually installed steel wind towers and average of them. The P-M interaction results of designed ICH RC tower which has the same diameter of reference steel tower showed that the ICH RC wind tower satisfies 200% of required load condition of the steel tower. The performance of the ICH RC tower were different by its hollow ratios, and it was confirmed that selected ICH RC wind tower can fully support 3.6MW and 5.0MW turbine. 신형식 풍력 타워인, 내부 구속 중공 철근 콘크리트(ICH RC)타워를 제안하고 해석을 통하여 그 성능을 검증하였다. 본 연구에서는 기존의 3.6MW, 5.0MW 강재풍력타워와 동일한 직경을 갖는 ICH RC 풍력타워와 두 타워의 평균 직경을 갖는 ICH RC 타워의 단면을 설계하고 이를 해석하여 성능평가를 하였다. P-M 상관도 해석결과 기존의 강재타워와 같은 직경의 ICH RC 풍력타워는 최대 약 200%더 큰 하중에 대해서도 저항할 수 있는 것으로 나타났다. 중공비에 따라 지지할 수 있는 하중이 다르게 나타났으며, 선택한 ICH RC 풍력타워가 기존의 3.6MW, 5.0MW 터빈 사이즈에 대해 충분한 성능이 발휘됨을 확인할 수 있었다.

도시계획과 재산권의 보호

김성원 한국토지공법학회 1996 土地公法硏究 Vol.2 No.-