• 한국체육학회지인문사회과학편
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• 제55권2호
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• pp.35-46
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• 2016

이 연구는 IPA분석을 통해 중·고등학교 아침운동의 중요도와 만족도에 대한 인식의 차이를 알아보고 아침운동의 개선 및 시사점을 제공하는데 목적이 있다. 편의표본방법을 이용하여 430명의 설문조사 자료를 분석하였고, 대응표본 t-test, IPA매트릭스를 도식화를 통해 다음과 같은 결론을 도출하였다. 첫째, 아침운동 참여 IPA 분석은 I사분면 : '스트레스 해소', '학교생활의 즐거움', '운동 기능향상', '친구들과의 관계개선', '체육수업에 도움', '건강 및 체력증진', '운동시설 및 용구의 양과 질', '규율이나 규칙', '지도교사의 리더십', '열정적인 지도', '공정한 지도', '운동 능력향상', '체육수업 이해에 도움', II사분면 : '소질 및 특기개발', '시작시간', '시설 및 용구의 안전관리', '새로운 스포츠로 구성', '요구와 흥미를 고려', '수준고려', '성별고려', III사분면 : '성격의 변화', '다양한 종목의 실기능력', '사고력증진', IV사분면 : '참여시간의 양', '학생들과의 의사소통', '수업내용을 쉽게 설명'의 속성이 포함되어 있었다. 둘째, 개선방안은 1) 안전교육 연계 프로그램, 2) 지적, 정서적 기여 프로그램, 3) 성별, 수준별 프로그램이 제시 되어야 할 것이며 4) 앞서 전술한 프로그램의 질적향상을 위한 전문인력 확충이 필요할 것으로 사료된다.

• 한국문헌정보학회지
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• 제57권2호
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• pp.379-408
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• 2023

본 연구는 C대학교 문헌정보학과에 기개설된 <지역문화정보론> 교과목을 프로젝트 기반 학습법을 활용한 캡스톤디자인 교과목으로 구성하여 운영한 사례에 관한 연구이다. 해당 교과목에서는 지역사회 청소년 특화기관과 연계하여 지역 고등학생들을 대상으로 디지털리터러시 교육을 수행하고 휴먼라이브러리 콘텐츠를 제작하는 프로젝트를 기획하여 진행하였다. 프로젝트에 참여한 수강생 5명과 협력기관 업무담당자 3명과의 반구조화된 심층면담을 수행하여, 지역사회와 연계하여 프로젝트 기반 학습법을 적용한 캡스톤디자인 교과목 개발과 운영의 특징 및 성과를 보고하고 개선점을 제안하였다. 또한, 21세기 학습 프레임워크(P21)를 사용하여 수강생들과의 심층면담 내용을 분석하여, 프로젝트 참여를 통해 수강생들은 P21의 3가지 기술 영역 전반의 11가지 학습 기술-자기주도, 프로젝트관리, 다양한 팀과의 협력, 유연함, 책임감, 리더십(삶과 경력 기술 영역)과 의사소통과 협업, 문제해결력, 창의력, 비판적 사고(학습과 혁신 기술 영역), 그리고 미디어결과물생성 기술(정보미디어테크놀로지 기술 영역)-을 강화했음을 확인했다. 본 사례연구는 지역사회협력에 기반한 문헌정보학 캡스톤디자인 교과목의 개발과 운영에 참고할 수 있는 방향성을 제시하고, 프로젝트 기반 학습법의 적용을 통한 커리큘럼 개발에 관심있는 교수자 및 연구자에게 도움이 되고자 하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 하계학술대회 논문집 C
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• pp.1730-1733
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• 2004

Device miniaturization and high integrated circuit design is of major interest for the development of electronic devices. Various studies have been conducted to develop new material and processing technique[1]. Negative Differential Resistance(NDR) is the defining behavior in several electronic components, including the Esaki diode and most notably, resonant tunneling diodes(RTD)[2]. We made a comparison of electrical properties between 4,4-Di(ethynylphenyl)-2'-nitro-1-(thioacetyl)benzene and 4-[2,5-dimethoxy-4-(p henylethynyl)phenyl]ethynylphenylethanethioate, which have been well known as a conducting molecule having possible application to molecular level NDR devices. As a result, we measured current-voltage curves using Scanning Tunneling microscopy(STM), I-V curves also showed several current peaks between negative and positive bias region.

• Journal of Electrical Engineering and Technology
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• 제10권2호
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• pp.518-528
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• 2015

This article presents a closed loop control of DC series motor fed by DC chopper controlled by an PID controller based intelligent control using ANN (Artificial Neural Network). The PID-ANN controller performances are analyzed in both steady state and dynamic operating condition with various set speed and various load torque. Here two different motor parameters are taken for analysis (220V and 110V motor parameters). The static and dynamic performances are taken for comparison with conventional PID controller and existing work. The steady state stability analysis of the system also made using the transfer function model. The equation model is also done to analysis the performances by set speed change and load torque change. The proposed controller have better control over the conventional PID controller and the reported existing work. This system is initially simulated using MATLAB / Simulink and then experimental setup done using P89V51RD2BN microcontroller.

• International journal of advanced smart convergence
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• 제9권2호
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• pp.49-57
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• 2020

We have not identified on what gender difference during gait at a pace of one's preferred velocity effects on the function of bilateral lower limb. This study was undertaken to investigate a difference of gait strategy by gender during gait at a one's preferred velocity of participants of adult male and female (n=20). Cinematographic data for motion analysis, ground reaction force (GRF) variables, and muscle volume of lower limb were analyzed. Significant difference of variables on movement of center of mass whole body, joint angle and moment of lower limb, and ground reaction force were tested by 2-way ANOVA analysis (P<0.05). Male group showed more muscle volume than female, and both showed more volume in dominant leg than non-dominant. Main effect by bilateral leg during gait showed higher difference in right than left leg in change of vertical position of center of mass (maximal, minimal). Main effect by gender in vertical change of position and velocity of center of mass showed higher difference in male than female (maximal, minimal). Hip joint showed more flexed and extended angle in male than female, and also dorsiflexion of ankle and flexion moment of knee and hip joint showed higher in male than female group. Therefore, this result was assumed that dominant showed furthermore more contribution for propulsive function than non-dominant leg. Gender difference showed in strategy controlling of biomechanical characteristics, and perhaps influenced by muscle volume.

• 전기학회논문지P
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• 제67권2호
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• pp.75-81
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• 2018

In this paper for developing and implementing the car driver's front lane attention enhancement developed system using the car camera. The developed system automatically alarm the car driver when front cars make the dangerous situation. We use Raspberry Pi camera module V2 as car camera module, Raspberry Pi 3 board as hardware main board of implementing embedded system and develop the application library module which can be operated on the Raspberry situation. The application library module widely consist of two part, front car recognition part and dangerous situation distinguish part. Our developed system satisfy the performance test of the target system at the software test certification laboratory of TTA(Telecommunication Technology Association). We test four items as attentive car recognition ability at day and night, system performance, response time. We get the performance of developed system based on the four goal. The car driver's front lane attention enhancement system in this paper will be widely used at the ADAS(Advanced Driving Assistance System) because of the better performance and function.

• 한국환경성돌연변이발암원학회:학술대회논문집
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• 한국환경성돌연변이발암원학회 2001년도 Korean Environmental Mutagen Society
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• pp.159-160
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• 2001

• 한국보건간호학회지
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• 제24권2호
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• pp.323-335
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• 2010

Purpose: This study identified sociodemographic characteristics, health status, health care utilization and related factors of Asian immigrant women in Korea. Methods: Data were collected from 465 immigrant women from China, Vietnam, the Philippines, and other Asian countries using standardized questionnaires. Descriptive statistics and $X^2$-test were performed utilizing SPSS version 17. A p-value <.05 was considered statistically significant. Results: Subjects had relatively good subjective health. The most prevalent conditions were, in order, anemia, gastrointestinal diseases, gynecological diseases, and depression. Subjects utilized mostly hospitals or clinics when sick. There were significant relationships between health care utilization and factors including residence, time since immigration and economic status. The rate of non-treatment in hospitals or clinics was 30.1% during the previous year, with significant relationships between non-treatment and factors including time since immigration and economic status. The major reasons for non-treatment were the burden of hospital expenses followed by communication difficulty. Conclusion: Public health efforts should be targeted to Asian immigrant women to improve their health status and support health care utilization.

• Journal of information and communication convergence engineering
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• 제20권2호
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• pp.137-142
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• 2022

Monolithic three-dimensional (M3D) logics such as M3D-NAND, M3D-NOR, M3D-buffer, M3D 2×1 multiplexer, and M3D D flip-flop, consisting of modularized M3D inverters (M3D-INVs), have been proposed. In the previous M3D logic, each M3D logic had to be designed separately for a standard cell library. The proposed M3D logic is designed by placing modularized M3D-INVs and connecting interconnects such as metal lines or monolithic inter-tier-vias between M3D-INVs. The electrical characteristics of the previous and proposed M3D logics were simulated using the technology computer-aided design and Simulation Program with Integrated Circuit Emphasis with the extracted parameters of the previously developed LETI-UTSOI MOSFET model for n- and p-type MOSFETs and the extracted external capacitances. The area, propagation delay, falling/rising times, and dynamic power consumption of the proposed M3D logic are lower than those of previous versions. Despite the larger space and lower performance of the proposed M3D logic in comparison to the previous versions, it can be easily designed with a single modularized M3D-INV and without having to design all layouts of the logic gates separately.

• 대한전자공학회논문지SP
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• 제48권1호
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• pp.90-102
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• 2011

현재 위성방송을 통해 신호를 전송 또는 재전송하는 무선통신서비스를 이용하는 시청자 층은 다양하다. 하지만 방송국은 H.264표준으로 압축된 동영상들을 위성통신을 통하여 전송하기 때문에 H.264표준 디바이스를 갖추지 않는 선박은 실시간으로 데이터를 전송받지 못하는 단점을 가지고 있다. 따라서 본 논문에서는 기존 MPEG-2 표준 디바이스를 사용하고 있는 선박을 위하여 H.264 to MPEG-2 트랜스코딩 방법을 제안한다. 제안한 방법은 H.264 표준의 매크로블록모드의 특성을 분석하여 H.264 to MPEG-2 transcoding의 계산시간 및 화질을 개선한다. 첫째 H.264와 MPEG-2표준의 INTRA 모드 방법이 상이하므로 새로운 방법을 제안한다. 둘째 매크로블록모드가 INTER 모드인 경우에는 H.264표준의 가변블록 안에 존재하는 움직임 벡터의 방향성을 고려하여 새로운 예측움직임벡터 (PMV: predictor motion vector)를 제안한다. 이때 최종움직임벡터는 예측움직임벡터를 그대로 사용하거나, H.264표준의 매크로블록내에 존재하는 가변블록들의 움직임벡터들과 MPEG-2부호기(baseline)의 움직임벡터의 일치율을 비교하여 최종적으로 움직임벡터를 예측할 범위(window size)를 결정한다. 실험결과, 제안한 트랜스코딩방법의 PSNR은 MPEG-2 FSBMA와 거의 일치하고, 트랜스코딩에 필요한 계산시간은 평균적으로 각각 70% 또는 67% 감소하였다.