양계 연구 동향-고부가양계산물생산의고민

김상화,Kim, Sang-Hwa 대한양계협회 2007 월간 양계 Vol.39 No.9

표현중심 초등 수학 수업 분석 및 교사의 역할

김상화(Sang Hwa Kim),방정숙(Jeong Suk Pang) 학습자중심교과교육학회 2011 학습자중심교과교육연구 Vol.11 No.4

본 연구는 현행 수학과 교육과정에서 강조하고 있는 수학적 의사소통 능력 신장을 위한 수업 중 표현중심 수학 수업에 대해 살펴보았다. 초등 교사들은 학생 개개인의 수학적 사고나 특성을 살려 다양한 표현을 할 수 있도록 수업을 하는 것이 중요하다고 인식하지만 실제 수업에서는 잘 이루어지지 않는다. 이에 본 연구에서는 2·4·6학년에서 표현중심의 수학적 의사소통 수업을 구현하고 표현중심 성취요소 도달 정도와 학생들의 표현 산출물을 분석하였다. 분석 결과를 토대로 표현중심 수학수업을 구현할 때의 교사 역할에 대한 시사점을 논의하였다. This paper analyzed three mathematics teaching practices focused on representation as a way to fostering students mathematical communication ability which has been emphasized in recent mathematics curricular revisions. Elementary school teachers tend to recognize easily the importance of multiple representations on the basis of individual students mathematical thinking abilities or characteristics, but often report considerable difficulties in implementing such an idea in their actual classrooms. Given this, this paper first illustrates how three teachers implemented mathematics instruction focused on representation in their second, fourth, and sixth grade classrooms respectively. It then analyzes how learning expectations related to mathematical representation were attained in each classroom. Students various products were additionally analyzed in terms of the diversity of representational forms and thinking processes through mathematical representations. This paper finally discusses the role of a teacher for effective mathematics teaching focused on representation.

고정밀 회전체의 불평형 변동에 따른 회전정밀도 영향에 관한 연구

김상화(Sang-Hwa Kim),김병하(Byung-Ha Kim),진용규(Yong-Gyoo Jin) 한국기계가공학회 2012 한국기계가공학회지 Vol.11 No.3

The spindle unit is a core part in high precision machine tool. Rotation accuracy of spindle unit is needed for high dignity cutting and improving the performance of machine tool. However, there are many factors to effect to rotational error motion(rotation accuracy). This study studied how rotational error motion is variation when unbalance amount is variation. Rotation accuracy of initial spindle unit is decided depending on parts and assembly such as bearing. When it is rotation, vibration and noise is appeared depending on volume of unbalance amount, so it works to decrease unbalance amount. The purpose of the study tests that unbalance amount how much effects to initial rotation condition. The result of the study shows that accuracy of parts and assembly is highly necessary to reach high rotation accuracy and unbalance amount hardly effects to initial rotation accuracy. However, it shorten spindle"s life because vibration and noise is increasing by increasing unbalance amount and we can expect situation that rotation accuracy is falling by long time operation.

외국인 의료관광객의 의료관광 선택요인이 고객만족에 미치는 영향

김상화 ( Kim Sang-hwa ),박주홍 ( Park Joo-hong ) 한국융합과학회(구 한국시큐리티융합경영학회) 2021 한국융합과학회지 Vol.10 No.2

연구목적: 의료관광은 최근 우리나라가 주목하고 있는 미래전략산업으로서 의료와 관광산업의 융합에서 파생된 신성장 분야이다. 일반 관광산업과 달리 의료관광산업은 글로벌 의료소비자에 대한 서비스 제공으로 인해 많은 이익을 창출하는 고부가가치 산업으로 간주되고 있다. 이전에는 대부분의 연구가 국가 이미지와 서비스 품질 연구 관련 환경 요인에 초점을 맞췄지만, 본 연구는 의료관광객 유치를 위해 반드시 필요하다고 인식되어지는 의료진의 인적속성, 의료서비스품질, 의료관광 정책과 고객만족에 미치는 영향을 살펴보고자 한다. 연구방법: 전통적인 서비스품질 요소인 SERVQUAL 변수를 활용하여 의료 서비스품질과 고객만족과의 관계를 검증하기 위해 대구광역시를 방문한 중국, 일본, 러시아 및 CIS 국가 의료관광객 500명을 대상으로 실증분석을 진행하였다. 연구방법으로는 구성 개념 타당도(요인분석) 분석, 상관관계 분석, 다중회귀분석을 실시하였다. 결과: 분석 결과 의사(β=.211)와 간호사(β=.251)이 고객만족에 가장 큰 영향을 미치는 것으로 나타났으며, 다음으로 신뢰성(β=.211), 반응성(β=.217)인 것으로 확인되었다. 하지만, 유형성, 확신성, 공감성은 고객만족에 유의한 영향을 미치지 못하는 것으로 나타났다. 결론: 일반 서비스 부분과는 달리 의료서비스에서는 의료 자체의 신뢰성과 신속성이 매우 중요한 요소임을 의미한다. Pupose: Medical tourism is a new growth area derived from the convergence of the medical and tourism industries as a future strategic industry that Korea is paying attention to recently. Unlike the general tourism industry, the medical tourism industry is considered a high value-added industry that generates a lot of profits from the provision of services to global medical consumers. Previously, most studies focused on national image and environmental factors related to service quality research, but this study seeks to examine the human nature of medical staff, medical service quality, medical tourism policy and customer satisfaction, which are deemed necessary to attract medical tourists. Methods: In this study, 500 medical tourists from China, Japan, Russia and CIS countries visiting Daegu City to verify the relationship between medical service quality and customer satisfaction by using the SERVQUAL variable, which is a traditional service quality factor We conducted empirical analysis on the subjects. As a research method, construct validity(factor analysis) analysis, correlation analysis, and multiple regression analysis were performed. Result: As a result of analysis, medical tourism selection factors, the ability of doctors (β=.211) and nurses (β=.251) to increase customer satisfaction relatively in relation to the human nature of medical staff is a major factor. In terms of satisfaction of medical tourists, reliability (β=.219) and Reactivity (β=.217) among historical service quality factors were strongly influenced in the medical service process. Conclusion: Unlike the general service sector, the reliability and speed of healthcare itself are critical factors in health care.

고정밀 공작기계 이송장치의 정밀도 측정방법 및 불확도 요인에 관한 연구

김상화(Sang-Hwa Kim),김병하(Byung-Ha Kim),최우각(Woo-Gak Choi) 한국기계가공학회 2012 한국기계가공학회지 Vol.11 No.4

Very important content in performance evaluation of machine tool is positioning accuracy and repeatability precision measurements of feed mechanism. A study analyses the measurement method and uncertainty factors by ISO-based test method. Reliable results can’t be derived without the notion of measurement uncertainty. The reason is that the measured value includes a lot of uncertain factors. Finding the factor that affects the measurement of parameter is important for estimation of measurement precision. In this paper, the evaluation of uncertainty analysis about positioning accuracy and repeatability precision measurements of high precision feed mechanism is presented to evaluate the important factors of uncertainty.

Relationships with expectations, exercise immersion and exercise continuation intention of Home Training participants (Focused on Police Officers)

Sang-Hwa Kim(김상화) 한국컴퓨터정보학회 2022 韓國컴퓨터情報學會論文誌 Vol.27 No.1

고정밀 스핀들의 회전정밀도 측정 오차 분리법에 관한 연구

김상화(Sang-Hwa Kim),김병하(Byung-Ha Kim),진용규(Yong-Gyoo Jin) 한국기계가공학회 2014 한국기계가공학회지 Vol.13 No.1

The rotation of a spindle unit must be accurate for high-quality machining and toimprove the quality of the machine tools.Therefore, the propermeasurement of the rotation accuracy and ensuring a proper analysis are very important. Separateprocesses are necessary because spindle errorsand roundness errorsassociated with the test balls can both factor into the measured rotation error values. We used three methodsto discern test ball errors and analyzedwhich could be deemed as the most proper technique in a test of the rotation accuracy of the main spindle of a machine tool.

홈트레이닝(home training) 참여자들의 자기결정성이 운동만족과 재이용에 미치는 영향 (경찰관련학과 재학생 대상)

김상화(Sang-Hwa Kim) 한국컴퓨터정보학회 2022 韓國컴퓨터情報學會論文誌 Vol.27 No.4

본 논문에서는 홈트레이닝에 참여하여 체력을 단련하고 있는 경찰관련학과 학생들의 자기결정성과 홈트레이닝 만족도와 재이용과의 관계를 알아보고자 하였다. 이를 위해 부산, 경남지역 D, S, K대학교 경찰행정학과, 경찰무도학과 재학생중 홈트레이닝에 참여한 경험이 있는 학생 349명을 대상으로 조사하였다. SPSSWIN VER 25+, AMOS 20.0 프로그램을 이용하여 자기결정성, 운동만족, 재이용 요인간의 관계를 검증한 결과, 첫째, 홈트레이닝 참여자의 자기결정성 하위요인인 자율성, 유능감, 관계성은 홈트레이닝 만족도에 긍정적인 영향을 미쳤다. 둘째, 홈트레이닝 참여자의 운동만족은 홈트레이닝 재이용에 긍정적인 영향을 미쳤다. In this paper, we propose the relationship between self-determination, home training satisfaction, and reuse of police-related students who participate in home training and train their physical strength. The subjects of this study were students enrolled in the Department of Police Administration and Police Martial Arts at D, S, and K universities in Busan and Gyeongnam area. Among them, 349 students who had participated in home training were surveyed. As a result of verifying the relationship between self-determination, exercise satisfaction, and reuse factors using the collected data, SPSSWIN VER 25+, AMOS 20.0 program, First, autonomy, competence, and relationship, which are sub-factors of self-determination of home training participants, had a positive effect on home training satisfaction. Second, exercise satisfaction of home training participants had a positive effect on home training reuse. Based on the research results,It is essential to identify and manage what home training participants demand. It is believed that this can be a positive process for the development of home training.

창업학과 대학생의 일반적 특성이 자기 효능감 및 전공만족도에 미치는 영향

김상화(Sang Hwa Kim) 한국진로창업경영학회 2023 한국진로창업경영학회지 Vol.7 No.2

유아의 신체적성운동 프로그램 참가가 기초 체력에 미치는 영향

김상화(Kim Sang-hwa),전중기(Jeon Jung-gi) 대구대학교 인문과학연구소 2005 人文科學硏究 Vol.29 No.-