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모토트론 RCP 플랫폼을 활용한 전자식 스로틀 제어 사례 연구
김민중(Minjung Kim),허재호(Jaeho Hur),이강윤(Kangyoon Lee) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
Electronic Control Unit (ECU) increasingly requires precise and complex control algorithms and fierce competition in the automotive market, while the reduction of development time and costs. Ways to meet these needs, Rapid-Prototyping was advent of techniques, has been gradually expanding. To apply Production of these technologies ECU (Engine Control Unit) continue the consistent development of a platform .The platform must be configured properly. MotoTron RCP platform is composed in the form of a hierarchical structure, and Automatic Code Generation techniques. The algorithm designer can easily create a production-level code. MotoTron’s various tools help users to develop the test algorithm and validation phases. We use technology of MotoTron to control electronic throttle Body system. This paper describes a case study to MotoTron RCP platform, and introduces development process through Electronic Throttle Body control. In order to shorten the development cycle, RCP is a technique which reduces the development time and money.
현장실습과 온라인실습 유형별 간호 대학생의 실습 만족도 및 학업성취도 비교
전은영 ( Eunyoung Jeon ),김소현 ( Sohyeon Kim ),김민중 ( Minjung Kim ),김서현 ( Seohyun Kim ),김성주 ( Seongju Kim ),김소영 ( Soyeong Kim ),김소현 ( Sohyeon Kim ),김아영 ( Ayoung Kim ),김예빈 ( Yebin Kim ),김정은 ( Jeongeun Kim ) 경북대학교 간호과학연구소 2021 경북간호과학지 Vol.25 No.2
Purpose: This study aimed to compare the level of satisfaction and academic achievement of nursing students' clinical practice achievement between field and online practice. Methods: In this descriptive research, we recruited junior and senior nursing students who experienced both field and online practice from nursing college in Daegu and Gyeongbuk, Korea. Data were collected using the online survey and analyzed via a t-test, ANOVA, and paired t-test using SPSS V 25.0. Results: There was no statistically significant difference in the satisfaction of practice between field and online practice types. However, academic achievement was higher in the field group than in the online group. Out of five points, the scores of field practice and online practice were 3.66 points and 3.39 points, respectively, which indicated that academic performance was higher in field practice than online practice (t=6.21, p<.001). Conclusion: Field practice has been shown to achieve higher academic performance than online practice. Hence, research is needed in order to develop suitable field practice models for the New Normal era in preparation for situations that practice is limited, such as COVID-19 and future outbreaks.
국부가열에 따른 강재의 온도 및 강도 변화에 관한 실험적 연구
강성후,김민중,김성환,박선준,Kang. Sunghoo,Kim. Minjung,Kim. Sunghwan,Park. Sunjoon 한국방재학회 2013 한국방재학회논문집 Vol.13 No.6
본 연구에서는 전기적인 방법에 의해 강재가 국부 가열될 때 강재에 발생되는 열유지율을 정량적으로 평가하고, 국부적으로 가열된 강재의 강도특성 변화를 실험적 방법으로 규명하였다. 이를 위하여 두께 6 mm, 12 mm, 18 mm 강판 시험편을 사용하여 실험하였다. 제한적인 본 실험의 조건에서 강판의 온도는 최대 <TEX>$125.2^{\circ}C$</TEX>까지 상승하였으며 이곳으로부터 이격거리가 각각 200 mm, 400 mm인 위치에서 열유지율은 평균 22.9%와 18.4%로 각각 나타났다. 국부 가열된 강재의 인장강도 시험 결과, 강재 시험편의 두께에 상관없이 모두 SS400강재에 요구되는 인장강도 400 MPa과 항복강도 240 MPa을 모두 충족하였다. 연신율의 경우에는 모든 시험편에서 20~30%의 값을 보여 정상 범위에 있는 것으로 나타났다. 이러한 제한된 조건의 실내 실험 결과들로부터 강재가 <TEX>$20{\sim}120^{\circ}C$</TEX>의 온도 수준으로 국부 가열되는 경우 강재의 성능은 저하되지 않는 것으로 나타났다. In this study, the retention rate of heat that is generated when steel is locally heated by electrical means was quantitatively evaluated and changes in strength properties of the steel were investigated by experimentation. To do so, the experiment was conducted on specimens with thicknesses of 6 mm, 12 mm and 18 mm. With the limited conditions of this experiment, the steel plate was heated to at most <TEX>$125.2^{\circ}C$</TEX> and the average heat retention rates at 200 mm and 400 mm away from this measurement point were 22.9% and 18.4%, respectively. For the results of the tensile strength test of the locally heated steel, a tensile strength of 400 MPa and yielding strength of 240 MPa that are required from SS400 were all satisfied regardless of the thickness of the steel specimen. In the case of percent elongation, all specimens showed values of 20-30% being within the normal range. The results of the indoor experiment with such restricted conditions showed that the performance of steel is not diminished when locally heated to temperatures of <TEX>$20-120^{\circ}C$</TEX>.