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

선택적 투과성면을 가진 직사각형 밀폐공간에서의 표면복사 및 자연대류해석

박대성,이택식,이준식,Park D. S.,Lee T. S.,Lee J. S. 대한설비공학회 1987 설비저널 Vol.16 No.2

A numerical study has been conducted on the combined radiation-natural convection heat transfer characteristics in a square cavity with a selectively transparent wall. The fluid in the cavity is assumed to be transparent to the thermal radiation. The effect of the wall emissivity is mainly considered in view of the temperature and flow fields. The comparison of the radiative heat flux and conductive heat flux variations along the isothermal wall is presented as well. The results show that the Nusselt number distribution is fairly uniform due to the com-pensative interaction of the radiation and convection heat transfer.

산업폐수처리에 (産業廢水處理) 관한 연구

박대성,김광호,김형석,이종철,주흥규,홍사욱 ( Dai Sung Park,Kwang Ho Kim,Hyung Suck Kim,Jong Chul Lee,Heung Kyu Jhoo,Sa Uk Hong ) 한국하천호수학회 1971 생태와 환경 Vol.4 No.3·4

Survey on the treatment of waste water of factories according to the kinds of industries distributed in Yeong Deung Po, Seoul has been investigated. The results of this study were summarized as follows: 1. All of the waste water of factories were over the standard levels in preventive law of public nuisance. 2. Flocculation sedimentation method is most favorable in treatment of waste water from the textile factories. In textile with dyeing factories, it can not be desirable in treatment of waste water by the methods such as sand filtration, sedimentation, flocculation sedimentation and aeration. In the food factories, the methods of flocculation sedimentation followed with aeration can accomplish the object of treatment. In the paper factories, all the methods of sandfiltration, sedimentation and flocculation sedimentation can be applied but the flocculation sedimentation is especially most favorable among them. In the treatment of waste water from the fermentation factories, use of aeration after flocculation sedimentation method can reach the objects of treatment. 3. Degrees of relationships between determined values of treated water were calculated into coefficients of correlationships between each experimental items. Calculating the equations of regression, in the case of necessity, presuming the mean values of other experimental items from a certain experimental item, the range of judgement can be widen to the extent of experimental data of treated water which were experimented in few item and also the random data can be used in the judgement of normal value or not. 4. Instead of the complicated B.O.D., the turbidity of simple experimental items can be applied in food, fermentation, textile, paper and pharmaceutical tries.

건설현장 재해예방을 위한 안전관리제도 내실화 방안-재해예방 기술지도 중심으로

박대성,Park, Dae-Seong 한국건설안전협회 2006 建設 安全技術 Vol.35 No.-

기술지도제도는 전문기술인력을 활용하여 재해율이 높은 중ㆍ소규모 현장의 건설재해를 효율적으로 관리하기 위해 정부가 간접적인 안전관리 전문제도로 도입하였다. 하지만 IMF 이후 급격히 변화된 건설현장 안전관리 체계와 재해율 증가, 지도기관 업체의 난립과 부실한 지도업무수행 등으로 기술지도제도의 실효성에 많은 문제점이 발생하고 있다. 따라서 본 연구에서는 기술지도제도의 운영 실태와 관계 법령, 설문조사 자료를 분석하여 문제점을 도출한 후 제도 운영상의 개선 방안, 지도기관의 전문성 강화 방안, 자율적인 안전관리 유도 방안으로 구분한 내실화 방안을 제시함으로써 효율적인 재해예방대책으로서 기술지도제도의 신뢰성을 제고시키는데 그 목적이 있다.

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.

광주지부

박대성,Park, Dae-Seong 한국건설안전협회 1996 建設 安全技術 Vol.20 No.-

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.

웹에서의 XML 질의 캐쉬 기법

박대성(Daesung Park),강현철(Hyunchul Kang) 한국전자거래학회 2006 한국전자거래학회지 Vol.11 No.1

e-Commerce와 같은 응용 등에 의해 웹에서 XML 데이터의 양이 많아짐에 따라 XML 질의 처리를 신속하게 해주는 기술이 필요하게 되었다. 이를 가능하게 해주는 것이 XML 질의 캐쉬이다. 자주 제기되는 질의에 대하여 질의 결과를 캐쉬한 후, 동일 질의에 재사용함으로써 빠른 응답 시간을 보장할 수 있다. 본 논문에서는 XML 질의 결과의 포맷으로 가장 보편적으로 사용되고 있는 노드 식별자 집합(NIS)을 캐쉬하여 XML 철의 성능을 향상시키는 기법을 제 안한다. 캐쉬되는 NIS는 질의 결과를 구성하는 소스 XML 엘리먼트들의 식별자 집합이다. 따라서 NIS는 질의 결과의 재구성, 변형, 다른 데이터와의 통합 등 웹 응용의 데이터 검색 요건을 충족시키기에 적절하고, XML 소스의 변경에 따른 점진적 갱신에 효율적이다. 그러나 XML 문서 형태로 질의 결과를 반환해야 할 경우에는 소스 XML 엘리먼트를 검색하는 실체화 과정을 필요로 한다. 본 논문에서는 세가지의 서로 다른 NIS의 구성을 고려하여 이들의 생성, 실체화, 점진적 갱신 알고리즘올 제안하고 RDBMS를 이용하여 구현하였다. 다양한 실험을 통한 성능 평가 결과 본 논문에서 제시하는 XML 질의 캐쉬 기법의 효율성을 확인하였다. As data on the Web is more and more in XML due to proliferation of Web applications such as e-Commerce, it is strongly required to rapidly process XML queries. One of such techniques is XML query caching. For frequently submitted queries, their results could be cached in order to guarantee fast response for the same queries. In this paper, we propose techniques for XML query performance improvement whereby the set of node identifiers(NIS) for an XML query is cached. NIS is most commonly employed as a format of XML query result, consisting of the identifiers of the XML elements that comprise the query result. With NIS, it is suitable to meet the Web applications data retrieval requirements because reconstruction and/or modification of query results and integration of multiple query results can be efficiently done. Incremental refresh of NIS against its source updates can also be efficiently done. When the query result is requested in XML, however, materialization of NIS is needed by retrieving the source XML elements through their identifiers. In this paper, we consider three different types of NISs, proposing the algorithms of their creation, materialization, and incremental refresh. All of them were implemented using an RDBMS. Through a detailed set of performance experiments, we showed the efficiency of the proposed XML query caching techniques.

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.

Skeleton Array를 이용한 능동 위상배열 안테나 교정

박대성(Daesung Park),윤주호(Juho Yun),정윤권(Youn Kwon Jung),장동혁(Donghyeok Jang),황금철(Keum Cheol Hwang),최재훈(Jaehoon Choi) 한국통신학회 2020 韓國通信學會論文誌 Vol.45 No.11