초등학생의 안전의식에 관한 연구

박대성,이영현,Park, Dae-Sung,Lee, Young-Hyun 한국응급구조학회 2004 한국응급구조학회지 Vol.8 No.1

This study selected the fifth and sixth graders of elementary school in Jeollanamdo who can express their opinions of safety consciousness and understand the items of questionnaire as the population. It selected 10 elementary schools under the supervision of Jeonnam Board of Education and sampled 700 students randomly from 2-3 classes in the 5th and the 6th grade. One preliminary survey was conducted to revise and complement the contents and forms of questionnaire with 70 students of a school from Apr. 1 to 6, 2004 and this study was conducted from Apr. 10 to 30, 2004. Data of this study were collected by explaining the purport of study to subjects after obtaining approval of principal and teacher of the school and distributing questionnaires. Total 700 questionnaires were distributed and 681 were collected (97%) and 602 were used for final analysis except 79 lacking responses. The results of this study are as follows. According to demographical characteristics of subjects, 'male' students were 302(50.%) and 'female' students were 300(49.8%) by sex and 'the 5th graders' were 285(47.3%) and 'the 6th graders' were 317(52.7%) in grade distribution. Residents at 'apartment house' were 406(67.4%) in residence type, 'going to school by foot' was 477 students(79.2%), 'high school graduates' were 297(49.3%) in fathers' education, 'high school graduates' were 366 (60.8%) in mothers' education, 'professional and office workers' were 231(38.4%) in fathers' job, 'full-time workers' were 283(47.0%) in mothers' job, and the number of siblings was one except myself in 343 students(57.0%). Respondents on the level of class showing 'good' were 340(56.5%) and those on the degree of adaptation to school life showing 'active' were 349(58.0%). On the characteristics related to safety education, 360(59.8%) responded it was 'very necessary', on the frequency of safety education at school for last one year, 339(56.3%) responded they had 'once or twice', on the frequency of safety education by parents, 279(46.3%) responded they 'often' had it, on the level of safety practice by parents, 347(57.6%) responded they practiced it 'frequently', on the source of knowledge of safety, 223(37.0%) responded they got it from 'parents, siblings and relatives', on the degree of recognizing the need of safety education textbooks, 295(38.5%) responded 'it was needed', on the recognition of necessity of teacher for safety education, 271(45.0%) answered it was very necessary', and on the recognition of qualification of teacher for safety education, 370(61.5%) answered it was 'paramedic'. The mean score of safety consciousness of subjects was 2.72 (SD. 21) of full score 3, having high score over mean score. According to each area, the area showing the highest safety consciousness was safety of fire(2.83), followed by home safety(2.76) and first-aid treatment(2.76), traffic safety(2.71), play and leisure safety(2.66) and school safety(2.56). Items showing statistical differences in the degree of safety consciousness according to demographical characteristics were sex(t=-3.11, p=.002), education(t=2.33, p=.021) and number of siblings(F=3.729, p=.011). In the difference of safety consciousness between both sexes, 'female' students(2.75) showed higher safety consciousness than 'male' students (2.69), and the former also showed higher safety consciousness than the latter in all six areas of school safety, play and leisure safety, traffic safety, fire safety, home safety and first-aid treatment, and there were statistical differences in the areas of play and leisure safety, traffic safety, fire safety and first-aid treatment. According to the differences of safety consciousness by grade, 'the fifth graders'(2.74) showed higher safety consciousness than 'the sixth graders'(2.70) and the former also showed higher safety consciousness than the latter in all six areas of school safety, play and leisure safety, traffic safety, fire safety, home safety and first-aid treatment, and

1급 응급구조사의 임파워먼트가 비판적 사고에 미치는 영향

박대성,Park, Dae-Sung 사단법인 한국응급구조학회 2008 한국응급구조학회지 Vol.12 No.3

Purpose : This study aimed to examine the effects of empowerment of the paramedics on critical thinking and provide the basic materials for the qualitative improvement of emergency medical service. Methods : This study collected data with the paramedics working at general hospital and hospital emergency room in G metropolitan city, B metropolitan city, U metropolitan city, D metropolitan city and J province from July 1 to 31, 2008. Total 180 questionnaires were collected and 152 were used for final analysis, and the following results were obtained through statistical analysis using SPSS 12.0 program. Results : 1) Average score of empowerment was 4.44 out of 6 and according to average score by areas, significance was 4.94, capacity 4.92, self-determination 4.28, and effective-ness 3.62. 2) Empowerment by general characteristics was statistically significant in age (F = 3.313, p < 0.05), the final scholastic attainments(F = 2.436, p < 0.05), and salary(F = 1.695, p < 0.01). 3) Average score of critical thinking was 3.12 out of 7 and according to scores by areas, maturity was highest as 3.71, followed by no prejudice as 3.70, systemicity as 3.14, pursuit of truth as 3.05, much curiosity as 2.93, critical thinking and self-confidence as 2.92, and analysis as 2.91. 4) Critical thinking by general characteristics was statistically significant in marital status (F = 15.695, p < 0.01) and the final scholastic attainments (F = 2.606, p < 0.05). 5) Correlations between empowerment and critical thinking showed positive correlations as Pearson's correlation coefficient r = 0.400 and positive correlation in all areas including empowerment and critical thinking were found (r = 0.116-0.710). 6) The effect of empowerment on critical thinking was statistically significant in p < 0.01 and was explained as $R^2=0.155$. In the effects of empowerment on critical thinking, significance, capacity and self-determination were statistically significant in p < 0.01, effectiveness in p < 0.05 and were explained as R2 = 0.244. Conclusion : From the above results, it was found that empowerment had the influence on critical thinking, so it was considered that hospital managers and emergency room chiefs must develop and operate education and training program based on the concept of empowerment, maintenance and management strategies.

심폐소생술 시 무릎보호를 한 경우와 하지 않는 경우 간의 심폐소생술의 질 비교

박대성(Park, Dae-Sung) 한국산학기술학회 2010 한국산학기술학회논문지 Vol.11 No.2

본 연구는 장판재질의 바닥에 마네킹을 놓고 심폐소생술 시행 시 무릎보호를 한 경우와 하지 않는 경우 간 에 심폐소생술의 질에 차이가 있는지를 알아보고자 하였다. 연구 대상자는 2009년 4월 20일부터 11월 15일까지 AHA BLS Provider Course를 이수한 G도, U광역시 대학생들로 실험군 48명, 대조군 56명으로 하였다. 본 연구에서는 실험 처치를 위해 무릎을 보호할 수 있는 무릎보호대(재질: 폴리에스터 100%, 두께: 2.5cm, 가로: 16cm×세로: 17cm)를 제 작하였으며, 심폐소생술 질 측정도구는 Resusci Anne(Leardal, Norway) 마네킹과 연결하여 Resusci Anne SkillreporterTM(Leardal, Norway)로 심폐소생술 시행 결과를 기록하였다. 수집된 자료는 SPSS/PC+(version 14.0)을 사 용하였다. 본 연구의 결과는 장판재질의 바닥에서 심폐소생술을 시행 시 무릎보호를 한 경우가 성별, 신장과 체중에 상관없이 심폐소생술의 질이 더 우수하였다. This study was carried out examine the difference in the quality of CPR between knee protection and no knee protection when CPR is performed with mannequin on the floor covered with laminated paper. Subjects of the research were 48 experimental group and 56 control group who were college students in G province and U metropolitan city and completed AHA BLS Provider Course from Apr. 20 to Nov. 15, 2009. This study made knee pad(material: polyester 100%, thickness: 2.5cm, width 16cm×length 17cm) to protect knee for experimental treatment and measurement of CPR quality was connected with Resusci Anne(Leardal, Norway) mannequin and the results of CPR were recorded with Resusci Anne Skillreporter TM (Leardal, Norway). Collected data were analyzed by SPSS/PC+(version 14.0). In conclusion, knee protection in CPR on the floor covered with laminated paper showed higher quality of CPR than that of no knee protection regardless of sex, height and weight.

건설현장 재해예방을 위한 안전관리제도 내실화 방안 : 재해예방 기술지도 중심으로

박대성(Park Dae Sung),김우(Kim Woo) 대한토목학회 2005 대한토목학회논문집 D Vol.25 No.4D

관계 DBMS 기반 XML 저장시스템 상에서의 XML 뷰 인덱싱

박대성 ( Dae-sung Park ),김영성 ( Young-sung Kim ),강현철 ( Hyunchul Kang ) 한국인터넷정보학회 2005 인터넷정보학회논문지 Vol.6 No.4

질의 결과를 캐쉬한 후 후속 질의 처리에 사용하는 것은 중요한 질의 최적화 기법으로서 이에는 실체뷰 기법과 뷰 인덱싱이 있다. 관계 데이터베이스에 대하여 많이 연구된 이들 기법은 XML이 웹 상에서 데이터 교환의 표준으로 부각된 이래 최근 XML 데이터에 대해서도 연구되고 있다. XML 뷰 인덱싱은 XML 질의의 결과인 XML 뷰 xv를 XML 뷰 인덱스(XVI)라는 구조로 표현한다. XVI는 xv의 소스 문서 엘리먼트들의 식별자 및 xv에 대한 정보를 저장한다. xv에 대한 XVI는 XML 엘리먼트의 식별자만을 저장하지 엘리먼트 자체를 저장하는 것이 아니다. 따라서 xv가 요청되면 그것의 XVI를 통해 xv의 하부 소스 XML 문서에 대해 실체화(materialization) 과정이 수행되어야 한다. 본 논문은 XVI 관리 시스템과 관계 DBMS 기반의 XML 저장 시스템의 통합 문제를 다룬다. 제안된 시스템은 두개의 서로 다른 상용 관계 DBMS에 대하여 Windows 2000 Server 환경에서 각각 Java로 구현되어 XML 뷰 인덱싱을 통한 XML 질의 처리의 성능 향상 및 XML 뷰 인덱싱의 오버헤드 평가에 이용되었다. 성능 실험 결과 관계 DBMS 기반의 XML 저장 시스템 상에서 XML 뷰 인덱싱은 매우 효율적이며 그 오버헤드는 미미하다는 것을 확인하였다. Caching query results and reusing them in processing of subsequent queries is an important query optimization technique. Materialized view and view indexing are the representative examples of such a technique. The two schemes had received much attention for relational databases, and have been investigated for XML data since XML emerged as the standard for data exchange on the Web. In XML view indexing, XML view xv which is the result of an XML query is represented as an XML view index (XVI), a structure containing the identifiers of xv`s underlying XML elements as well as the information on xv. Since XVI for xv stores just the identifiers of the XML elements not the elements themselves, when xv is requested, its XVI should be materialized against xv`s underlying XML documents. In this paper, we address the problem of integrating an XML view index management system with an RDBMS based XML storage system. The proposed system was implemented in Java on Windows 2000 Server with each of two different commercial RDBMSs, and used in evaluating performance improvement through XML view indexing as well as its overheads. The experimental results revealed that XML view indexing was very effective with an RDBMS based XML storage system while its overhead was negligible.

일부 중학생의 심폐소생술에 관한 노래․동영상 자가 학습과 심폐소생술 동영상 자가 학습(VSI)과의 교육 효과 비교

박대성(Dae-Sung Park) 한국콘텐츠학회 2010 한국콘텐츠학회논문지 Vol.10 No.4

본 연구는 심폐소생술 교육 경험이 없는 중학생의 심폐소생술에 관한 노래·동영상 자가 학습과 심폐소생술 동영상 자가 학습(VSI)과의 교육 효과를 파악함으로써, 중학생을 대상으로 효과적인 심폐소생술 교육방법을 위한 기초자료를 제공하고자 시도하였다. 연구의 대상자는 G광역시에 소재한 S중학교 3학년 학생을 대상으로 편의표집하여 총 68명으로 실험군 33명, 대조군 35명이 최종 실험처치까지 참여하였다. 조사기간은 2009년 4월 22일부터 23일까지 2일에 걸쳐서 자료를 수집하였다. 연구 결과는 중학생을 대상으로 한 심폐소생술에 관한 노래·동영상 자가 학습이 심폐소생술 동영상 자가 학습(VSI)보다 좋은 결과가 나왔다고는 볼 수는 없다. 하지만 교육 효과가 확인되었으므로 중학생을 대상으로 한 심폐소생술 교육에 있어 유용하게 활용 될 수 있을 것으로 사료된다. This study examined the educational effects by song?video self study of CPR and CPR VSI with middle school students who have no CPR education experience and aimed to provide basic materials for effective CPR education method with middle school students. The subjects of the research were total 68 middle school students of S middle school in G metropolitan city and they were selected by convenience sampling into 33 experimental group and 35 control group. The period of examination was from Apr. 22 to 23, 2009 and the data were collected for two days. As a result of the research, song·video self learning of CPR with middle school students was not considered as achieving better results than video self learning. But, as its educational effects were confirmed, it will be available in education of CPR with middle school students.

심폐소생술 구조자의 무릎 높이 정도가 흉부압박의 질에 미치는 효과

박대성(Park, Dae-Sung) 한국산학기술학회 2012 한국산학기술학회논문지 Vol.13 No.4

본 연구는 심폐소생술 시행 시 구조자의 무릎이 바닥으로부터 10 cm 높은 위치와 바닥 위치 간에서 흉부압 박의 질에 차이가 있는지를 알아보고자 시행하였다. G광역시의 G대학 응급구조과 1학년 재학생으로 심폐소생술 교육 과정을 이수한 66명 중, 무작위추출과정을 통해 2011년 11월 8일부터 9일까지 실험군 31명, 대조군 32명으로 선정하 였다. 바닥으로부터 10 cm 위치(재질: B4 Copy Paper)와 바닥 위치에는 공통으로 매트리스(재질: PVC, 사이즈: 185×125×0.65 cm)를 깔고 2분 동안 흉부압박 만을 시행하였다. 실험 처치는 Resusci Anne 마네킨 1대를 사용하였으 며, Laerdal PC SkillReporting System으로 시행결과를 기록하였다. 수집된 자료는 SPSS 14.0 for Window으로 x2-test 와 Fisher’s exact probability test, Mann-Whitney U-test, Wilcoxon signed rank test를 사용하였다. 연구결과, 심폐소생 술 구조자의 무릎이 바닥으로부터 10 cm 높은 위치가 바닥 위치보다 흉부압박 적절한 깊이(회), 평균 흉부압박 깊이 (mm)가 더 효과적 이었는데, 신장 170 cm 이하 그룹, 몸무게 65 kg 이하 그룹에서 흉부압박의 적절한 깊이(회), 평균 흉부압박 깊이(mm)가 효과적 이었다. This study was conducted to examine the differences of the quality of chest compression between 10 cm higher position of rescuer's knee from the bottom and its bottom position during implementation of CPR. It selected randomly subjects out of 66 students who attend the Dept. of Emergency Medical Technology in G college, G metropolitan city as the first grader and divided them into 31 experimental group and 32 control group from Nov. 8 to 9, 2011. Mattress was spread 10 cm higher from the bottom(material: B4 Copy Paper) and on the bottom(material: PVC, size: 185×125×0.65 cm) and only chest compression was conducted for 2 minutes. Experiment was conducted with 1 Resusci Anne mannequin and the results of experiment were recorded with Laerdal PC Skill Reporting System. Data collected were analyzed with x2-test and Fisher’s exact probability test using SPSS 14.0 for Window, Mann-Whitney U-test, and Wilcoxon signed rank test. As a result of the study, it was found that 10 cm higher position of rescuer knee from the bottom than the bottom position and group below 170 cm in their height and 65 kg in their weight were more effective in proper depth of chest compression and average chest compression depth.

CFD를 활용한 브러쉬 실의 회전체동특성 해석

박대성(Dae-Sung Park),하태웅(Tae Woong Ha) 한국유체기계학회 2018 한국유체기계학회 논문집 Vol.21 No.5

보건계열 대학생의 대학 생활스트레스, 우울이 자살생각에 미치는 영향

박대성(Park, Dae-Sung) 한국산학기술학회 2013 한국산학기술학회논문지 Vol.14 No.2

본 연구의 대상자는 G광역시에 소재한 G대학교 보건계열 3년제 학과 중에서 응급구조과, 물리치료과, 보건 행정과를 임의선정하고 편의표집 한 390명으로 하였다. 조사기간은 2012년 6월 4일부터 6일까지의 기간 동안 구조화 된 무기명 자기기입식의 설문조사에 의하였다. 최종 분석은 366부를 사용하였다. 수집된 자료는 SPSS WIN(Statistical Package for Social Science Windows) 12.0 프로그램을 사용하였으며, 모든 검정의 유의수준은 p<0.05이었다. 연구 결 과 자살생각에 대한 우울과 사회적 지지의 상호작용 효과가 부적(-) 관계로 통계적으로 유의미하게 나타났다. 결과적 으로 우울과 자살생각과의 관계에서 사회적 지지가 조절 효과를 나타내는 것으로 검증 되었다. 따라서 자살을 예방하 고 자아존중감을 증진하기 위한 개별 및 집단 상담, 정규 교육 프로그램의 개발과 적용이 요구되며, 실천적 교육 프 로그램을 실시하여 결과 및 효과성을 제시하는 연구가 필요하다. This study selected 390 students attending the three-year curriculum departments of G college in G metropolitan city including emergency medical technology, physical therapy and health administration randomly as the subjects of the research. The research was conducted from June 4 to 6, 2012 with structured self-administered questionnaire, 366 responses were used for final analysis. Data collected were analyzed with SPSS WIN(Statistical Package for Social Science Windows) 12.0 program and all tests were verified at the significance level of 0.05. As a result of the research, it was found that interaction effects between depression from suicidal ideation and social support showed negative correlation and it was statistically significant. Consequently, it was confirmed that social support had control effects in the relationship between depression and suicidal ideation. Therefore, the development and application of individual and group counseling and regular education program to prevent suicide and increase self-esteem are required, practical education program should be conducted and studies showing its results and effects are also needed.

미엔더 라인을 이용한 사다리꼴 다이폴 구조의 VHF 대역 능동 위상 배열안테나 복사소자 연구

박대성(Dae-Sung Park),고영관(Young-Kwan Ko),최재훈(Jae-Hoon Choi) 한국전자파학회 2016 한국전자파학회논문지 Vol.27 No.12

본 논문에서는 VHF 대역의 능동 위상 배열 안테나에 사용하기 위한 복사소자를 소형화하는 방안에 대해 연구하였다. 이를 위하여 미엔더 라인을 갖는 다이폴 안테나를 사다리꼴 모양으로 설계하여 성능 열화는 최소화하면서 다이폴 안테나 길이를 소형화하였다. 또한, 그리드 반사기를 사용하여 지향성을 향상시키고, 외부환경에 둔감하도록 하였으며, 배열 안테나에 적용하기 위한 구조로 설계하였다. 제작된 안테나는 VSWR 2:1 기준으로 약 9.1 %의 대역폭을 가지며, 4.24 dBi의 최대 이득을 갖는다. 그리고, 전후방비(FBR)는 15 dB 이상의 양호한 특성을 나타내었다. In this paper, the method to miniaturize the radiating element of a VHF-band active electronically scanned array is proposed. The length of the proposed dipole having trapezoidal shape structure is miniaturized using meander line while the performance degradation is minimized. The grid reflector is used to improve the antenna directivity and insensitivity due to the outer environment. In addition, the antenna is designed to take into account for array application. The fabricated antenna has a 9.1 % fractional bandwidth for the voltage standing wave ratio(VSWR) 2:1 and the maximum gain of 4.24 dBi. The front-to-back ratio(FBR) is larger than 15 dB.