• 제목/요약/키워드: Sampling Design

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한국원자력연구원 파이로 안전조치 기술개발 현황 (Status of Development of Pyroprocessing Safeguards at KAERI)

  • 박세환;안성규;장홍래;한보영;김봉영;김동선;김호동;이채훈;오종명;서희;신희성;원병희;구정회
    • 방사성폐기물학회지
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    • 제15권3호
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    • pp.191-197
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    • 2017
  • 한국원자력연구원은 IAEA에서 권고하고 있는 안전조치기반설계(SBD)에 입각하여 파이로 안전조치 기술을 개발하고 있다. 한국원자력연구원은 파이로 안전조치접근방안 개발을 위한 IAEA 회원국지원프로그램(MSSP)을 수행하였다. IAEA 회원국 지원프로그램을 통하여 기준파이로시설(REPF) 개념을 설계하고, 이 시설에 대한 안전조치시스템을 개발하였다. 최근에 기준파이로시설은 용량이 증대된 REPF+로 업데이트 되고 있다. 핵물질계량관리시스템 성능평가를 위하여 전산코드 PYMUS를 개발하였으며, PYMUS는 전용탐지획률 통계평가 방안을 포함하여 업그레이드하고 있다. 파이로 입력물질 계량을 위한 비파괴분석장비로 ASNC가 개발되고 있으며, 파이로 출력물질인 U/TRU 잉곳을 계량하기위한 비파괴분석장비로 HIPAI가 개발되고 있다. 또한 컴프톤 억제 감마선분광기술, LIBS 기술, 균질화 공정의 샘플링 오차에 대한 평가도 진행 중이다. 이러한 노력들은 국내에서 선진핵주기기술 실현에 크게 기여할 것이다.

도인기공체조가 여성의 견비통(肩臂痛)에 미치는 효과(效果) (Effects of the Doin Gigong Exercise on the Shoulder-Arm Pain in Women)

  • 윤현민;김미영;김이순;임진섭
    • Journal of Acupuncture Research
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    • 제22권1호
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    • pp.177-190
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    • 2005
  • 본 연구는 도인기공체조가 여성의 견비통 및 견부 근육에 미치는 효과를 알아보기 위하여 실시하였다. 연구설계는 유사실험설계로 비동등성 대조군 전후설계이며, 연구방법은 실험군, 대조군에게 사전조사로 일반적인 특성, 견비, 견배통 자각 증상, 주관적 동통(VAS), 근육경결정도를 측정하였다. 실험처치로 본 연구자와 한의학 전공교수 1인, 도인기공 전문가 1인이 함께 개발한 도인기공체조를 첫 2주 동안에는 도인기공 전문가와 연구자가 함께 연구대상자들에게 1회 45분, 주 3일을 실시하였다. 3주째부터는 연구자가 혼자 지도하면서 1회 45분 동안 주 3일 총 24회를 실시했다. 매회 출석을 체크하고, 불참 시에는 개발된 도인 기공체조 비디오를 사전 배부하여 집에서 개인 적으로 도인기공체조를 실시하도록 격려하였고, 운동실시여부는 전화로 확인했다. 실험처치 후 사후조사는 사전조사와 동일하게 측정하였다. 자료분석은 SPSS/WIN 10.0을 사용하였으며, 동질성 검증은 $x^2$검정, t검정, Fisher's exact test로 분석하였고, 가설검정은 ANCOVA와 t점정으로 측정도구의 신뢰도는 Cronbach' alpha 계수를 산출하였다. 본 연구의 결과는 다음과 같다. 1. 도인기공체조를 받은 실험군은 대조군에 비해 유의하게 견비, 견배통 자각증상의 점수가 감소되었다(t=10.245, p=.000). 2. 도인기공체조를 받은 실험군은 대조군에 비해 유의하게 주관적인 동통 점수(VAS)가 감소되었다(t=6.816, p=.000). 3. 도인기공체조를 받은 실험군은 대조군에 비해 근육경결정도가 감소되었다(t=7.114, p=.000).

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Source Proximity and Meteorological Effects on Residential Ambient Concentrations of PM2.5, Organic Carbon, Elemental Carbon, and p-PAHs in Houston and Los Angeles, USA

  • Kwon, Jaymin;Weisel, Clifford P.;Morandi, Maria T.;Stock, Thomas H.;Turpin, Barbara
    • 한국환경과학회지
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    • 제25권10호
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    • pp.1349-1368
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    • 2016
  • Concentrations of fine particulate matter ($PM_{2.5}$) and several of its particle constituents measured outside homes in Houston, Texas, and Los Angeles, California, were characterized using multiple regression analysis with proximity to point and mobile sources and meteorological factors as the independent variables. $PM_{2.5}$ mass and the concentrations of organic carbon (OC), elemental carbon (EC), benzo-[a]-pyrene (BaP), perylene (Per), benzo-[g,h,i]-perylene (BghiP), and coronene (Cor) were examined. Negative associations of wind speed with concentrations demonstrated the effect of dilution by high wind speed. Atmospheric stability increase was associated with concentration increase. Petrochemical source proximity was included in the EC model in Houston. Area source proximity was not selected for any of the $PM_{2.5}$ constituents' regression models. When the median values of the meteorological factors were used and the proximity to sources varied, the air concentrations calculated using the models for the eleven $PM_{2.5}$ constituents outside the homes closest to influential highways were 1.5-15.8 fold higher than those outside homes furthest from the highway emission sources. When the median distance to the sources was used in the models, the concentrations of the $PM_{2.5}$ constituents varied 2 to 82 fold, as the meteorological conditions varied over the observed range. We found different relationships between the two urban areas, illustrating the unique nature of urban sources and suggesting that localized sources need to be evaluated carefully to understand their potential contributions to $PM_{2.5}$ mass and its particle constituents concentrations near residences, which influence baseline indoor air concentrations and personal exposures. The results of this study could assist in the appropriate design of monitoring networks for community-level sampling and help improve the accuracy of exposure models linking emission sources with estimated pollutant concentrations at the residential level.

대학생의 장애인에 대한 태도에 영향을 미치는 요인 (Factors Affecting College Students' Attitudes Toward the Disabled)

  • 강현숙;조결자;지은선;장미희;이경혜;최은영;송영아;장정미;이경재;김소영;유경희
    • 재활간호학회지
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    • 제6권2호
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    • pp.164-172
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    • 2003
  • Purpose: The purpose of this study is to analyze college students' attitudes toward people with disabilities, and factors affecting the attitudes, and further to examine possible ways to improve the attitudes, and to furnish guideline of curriculum and practice in rehabilitation nursing on the basis of this analysis. Method: A descriptive, relational study design was used. The subjects of this study were 448 college students. A convenient sampling is used. Data were collected through 4 types of previous questionnaires used to examine attitude from May 1 to May 30, 2003. Result: 1. The attitude toward people with disabilities whose mean is 3.762 was responded somewhat negatively. Especially, a contact tension whose mean was 4.00 is high. 2. As a result of analyzing the attitudes of college students toward people with disabilities, some factors were statistically significant. They were experience of contact with the disabled, concern toward the disabled, voluntary work related to the disabled, and disability experience education. 3. The more negative experience of people with disabilities and the lower stereotype of disability and the higher effects of parents, teachers, and mass media, then the more positive response of peoples attitude with disabilities. 4. The main factors of determining the attitude of people with disabilities were the stereotype of disability, contact experience, concern about disability, voluntary work experience. Conclusion : These results suggested that an appropriate educational intervention and strategy is needed in order to change the attitudes of college students toward people with disabilities. Also experimental researches are needed to do it.

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발반사 마사지가 유방암 환자의 수술 후 통증과 수면만족도에 미치는 효과 (The Effects of Foot Reflex Zone Massage on Patients Pain and Sleep Satisfaction Following Mastectomy)

  • 박지원;유혜라;이홍숙
    • 가정∙방문간호학회지
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    • 제13권1호
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    • pp.54-60
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    • 2006
  • This study, a quasi-experimental study using a nonequivalent control group pretest-posttest design. conducted a survey on 30 patients test group and control group of IS patients sampling an adjacent population at random - who are operated on the breast cancer and are in the A University Hospital located in Suwon, to examine into the effects of foot reflex zone massage on their pain and sleep satisfaction through the nursing interventions. It gave them a foot reflex zone massage for the total 30 minutes-basic massage 10 minutes and reflex massage 20 minutes required to alleviate their pain day in day out covering a two-month period from the first of July to the first of September 2004. for the purpose of collecting data. It launched into a two-round foot reflex zone massage at 6 and 24 hours since mastectomy through a direct visit at the hospital room to measure pain intensity, physiological index(pulse and blood pressure) and sleep satisfaction of them. The results are as follows. First, it showed that there is all the difference between pain intensity of test group and that of control group. In result, the first hypothesis, pain of test group. which measure at 6(p=.000) and 24 hours(p=.001) since mastectomies, will be bigger than that of control group, was established. Second, it showed that there is all the difference between physiological index of test group and that of control group. In result. the second hypothesis, pulse(p= .025, p= .002), systolic blood pressure(p= .004, p=.012) and diastolic blood pressure(p=.004. p= .003) of test group, which investigate at 6 and 24 hours since mastectomies, will be bigger than that of control group, was established. Third, it showed that there is a significant difference between sleep satisfaction of test group and that of control group(p=.000). In result, the fourth hypothesis, sleep satisfaction of test group. which examine in the morning after mastectomies, will be bigger than that of control group, was established. In the result. a foot reflex zone massage is seen to be effective in the pain reduction and sleep promotion of patients who are operated on breast cancer, and in providing them with more qualitative care by improving confidence between them and nurses through a physical touch. Also, it can be applied to a clinical examination through an independent nursing intervention.

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국부의치 제작을 위한 보철의뢰 서식의 기록에 관한 임상적 연구 (A Study of Prosthetic Prescriptions sent to the Laboratories for Removable Partial Denture Framework)

  • 장익태
    • 대한치과보철학회지
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    • 제18권1호
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    • pp.7-13
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    • 1980
  • The purpose of this study was to evaluate the removable partial denture prescriptions including surveyed crowns and design of component parts sent to the laboratory technician. A total of 351 casess with prescription forms and master cast in maxillary and mandibular semi-edentulous situations collected from dental laboratory by random sampling were selected for this study. The evaluation and study observed here involved the classification of edentulous situations, status of abutment splinting, form of rest seats and guiding plane of surveyed crows, location of maxillary major connectors and tripodig marks on the master casts. Removable partial denture prescriptions contained (1) general request (upper and lower cast framework), (2) types of metal, (3) location of retainer(retention, lingual bracing, rest area, guiding plane surface), (4) location and type of major connector, (5) relief area and amount, (6) and other specific instructions. The following informations based on the classified groups such as Group I was those cases sent with no real prescriptions. They say 'make a partial.' No prescriptions, no thought beforehand, Group II was those cases sent with a minimal prescriptions. They say 'make a partial with clasps on May be some preparations, usually inadequate. Group III was those cases sent with a moderately good prescription. Adequate but could be much better. No tripoding but it tell what clasps go where. Still not good prescriptions. Group IV was good cases, tripoded with adequate prescriptions and a prescription which exactly describes what is expected from the laboratory. The analyzed results were as follows: 1. The normal form of rest seats and guiding plane of surveyed crowns in Class. I and Class. II edentulous situations on the maxillary cast were observed 31.9% and 27.89%, respectively. The abutment teeth and retainer without occlusal rests of Class. I and Class. II were showed 11.58% and 8.86%, respectively. In mandibular cases, the normal form of rest seats and guiding plane of surveyed crowns showed 27.54% and 8.82% in Class. I and Class. II situation. The abutment teeth and retainer without rest seats were showed 15.19%, respectively. 2. The splinted surveyed crowns of Class. I and Class. II maxillary edentulous situations in distal extension cases were showed 34.51% and 28.85%, but 28.52% and 10.29%, respectively. 3. The location and type of maxillary major connector delineated on the master cast were 66 cases (44.89%). 4. The results of 351 cases were classified as Group I 146(41.59%), Group II 115 (32.76%), Group III 57 (16.23%), and Group IV 33 (9.48%). 5. The delineation of abutment tooth for clasping were 176 cases (50.14%) among total of 351 cases. 6. The delineation of height of contour line were showed 45 cases (12.8%) in Group II, 14 cases (3.98%) in Group III and 33 cases (9.40%) in Group IV with total 92 cases (26.21%). 7. In surveying procedure, the delineation of tripoding marks and reference line were showed 17 cases (4.84%).

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학교특성에 따른 건강증진학교 평가 (Evaluation of Health Promoting School by School Characteristics)

  • 이은영;최보율;손애리;안동현
    • 보건교육건강증진학회지
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    • 제26권3호
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    • pp.85-96
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    • 2009
  • Objectives: The purpose of this study was to assess input for health promoting schools (HPS), and to evaluate HPS based on WHO's guidelines through school characteristics, and to identify the schools' need among six areas of HPS. Methods: A stratified and random cluster sampling design was used to obtain a cross-sectional sample. A total of 59 elementary, middle and high schools in Seoul and Gyeonggi areas were included, and 333 teachers (males 40.6%, females 59.4%) participated in this survey. A self-reported questionnaire consisted of ten items for input for HPS, 50 items for the evaluation of HPS and three items for the schools' needs among six areas of HPS. Data was analyzed through a t-test, ANOVA, and a Duncan test. Results: The mean score of input for HPS was 48.5 ($\pm$15.3). Elementary schools had higher mean scores of input than middle schools. The mean score of schools with a management committee was higher than those schools without it. The schools which had meetings on health issues had higher mean scores. The mean score for HPS was 76.8 ($\pm$9.4): the area of "School Physical Environment" had the highest score (80.0$\pm$10.9), and the area of "Community Relationships" had the lowest score (67.1$\pm$13.9). Elementary schools had higher mean scores of HPS than middle and high schools. The schools which had less than nine classes and more than 31 classes had higher mean scores. The mean scores of schools with less than 340 students and more than 1201 students had higher. The schools which had meetings on health issues had higher mean scores. The same results were found on six areas of HPS. The teachers responded that the areas of "School Health Policy", "The School Physical Environment", and "Health Service" should be supported among the six areas of HPS. Conclusion: Based on these results, more concerns and support for school health are necessary. Middle schools should give more regard on the development of HPS. For comprehensive school health promotion, all six areas of HPS should be equally supported.

부산-울산 고속국도(5공구)에 위치한 암반사면의 추계론적 절리연결구조 모사에 대한 사례연구 (A Case Study on Stochastic Fracture Network Modeling for Rock Slopes of Busan-Ulsan Highway(Reach 5))

  • 허인실;엄정기;김용필;김국한;이영균
    • 지질공학
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    • 제16권4호
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    • pp.337-349
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    • 2006
  • 부산울산 고속국도 중 8.02 km 구간에서 유문암질 응회암류로 구성된 암반사면에 설치된 6개의 조사선으로부터 총751개의 절리가 측정 기록되었다. 조사된 절리 자료를 사용하여 절리군 분석이 수행되었으며 구분된 개별 절리군에서 방향성, 절리선 길이, 절리 간격 및 삼차원적 절리 크기에 대한 확률분포가 도출되었다. 구분된 모든 절리군에서 방향분포는 높은 변동성을 수반하며 대부분의 절리군에서 기존의 피셔분포가 방향분포 모델로 채택될 수 없는 것으로 검정되었다. 절리 간격 및 절리선 반길이에 대한 통계분포 모델로 음지수, 감마 및 대수정규 분포가 모두 적합한 것으로 분석되었다. 이들 통계분포를 도출하기 위해서는 절리 간격과 절리선 길이에 관계된 자료왜곡을 보정하였다. 이로부터 추계론적으로 모사된 삼차원 절리연결구조는 사면암반의 이차원 영역에서 각 절리군에 대한 절리선 구조를 예측하는데 이용되었다. 예측된 절리분포의 통계적 특성치를 현장조사 자료와 비교하여 타당성을 검토한 결과 사면암반에서 모사된 삼차원 절리연결구조는 현장암반의 절리 분포특성을 잘 반영하는 것으로 해석되었다.

간호사의 전자의무기록(EMR) 인식도와 만족도에 따른 자율성 및 간호업무성과 (The Autonomy, Nursing Performance based on the Awareness and satisfaction of EMR System for Nurses)

  • 강지숙;김순자;김원정
    • 한국산학기술학회논문지
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    • 제16권9호
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    • pp.6061-6070
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    • 2015
  • 본 연구는 간호사를 대상으로 전자의무기록(EMR) 인식도, 만족도에 따른 간호사 자율성과 간호업무성과와의 관계를 파악하기 위한 서술적 상관관계연구이다. 구조화된 설문지를 이용하여 2013년 8월 종합병원 간호사 194명을 임의표집하여 자료를 수집하였으며, 수집된 자료는 SPSS 20.0 프로그램을 이용하여 빈도와 백분율, 평균과 표준편차, t-test, ANOVA, Pearson's correlation coefficiency로 분석하였다. 연구 결과는 다음과 같다. 대상자의 EMR에 대한 인식도는 3.68, 만족도는 3.47로 중간이상이었고, 대상자의 자율성은 3.25로 중간수준, 간호업무성과는 3.55로 비교적 낮은 수준이었다. EMR 인식도에서는 특수부서간호사가 일반병동간호사에 비해 유의하게 높았고, 컴퓨터자격증 소지자가 미소자에 비해 유의하게 높았다. EMR 만족도는 컴퓨터자격증 소지자가 미소지자에 비해 높았고, 간호업무성과는 수간호사이상이 일반간호사나 주임간호사에 비해 높았다. 또한 대상자의 EMR에 대한 인식도가 높을수록 만족도가 높았고, 만족도가 높을수록 간호사자율성 및 간호업무성과가 높았다. 따라서 간호사의 자율성과 간호업무성과를 높이기 위해 간호사의 EMR 인식도 및 만족도를 높이고 이를 위한 컴퓨터 자격증에 대한 활용 등의 방법에 대한 고려가 필요하다.

노부모와 성인자녀간의 가족결속도가 노인의 자살생각에 미치는 영향 연구: 복지유통관점 중심으로 (Family Solidarity between Old Parents and Adult Children, Welfare Distribution, and Suicidal Ideation of Elderly)

  • 정명희;김은정
    • 유통과학연구
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    • 제12권8호
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    • pp.91-102
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    • 2014
  • Purpose - Today, the importance of the service industry has increased. Social welfare businesses that follow the non-profit principle have neglected the distribution of the service. However, an intangible service, when produced and consumed, has a similar service delivery system to common service distribution and social welfare. Therefore, the author has assumed the efficiency of the service delivery system of social welfare to be equivalent to the service distribution industry. Hence, various kinds of social welfare services for the prevention of elderly suicide, from the perspective of distribution, are discussed. Studies on generational relations have thus far investigated depression from parent-children conflict, and satisfaction with their lives. Studies on the relationship between family solidarity and elderly suicide by analyzing existing social problems are rare. This study investigated the effects of family solidarity between old parents and adult children upon elderly suicide by analyzing serious psychological and social problems. This study revealed basic measures for elderly suicide prevention through services that could elevate family solidarity from the perspective of social welfare service distribution. Research design, data, and methodology - The subjects were 468 elderly, 65 years or older, at 18 senior welfare centers and halls for the elderly at Seoul and Gyeonggi-do. Questionnaire surveys, excluding invalid answers, were analyzed. Convenience sampling was used from February 5, 2014 to March 5, 2014. The findings were: First, women and those having spouses with advanced educational backgrounds and social activities had primary solidarity such as contact solidarity, affectionate solidarity, functional solidarity (giving help), and functional solidarity (receiving help). In addition, those who had good health, from a subjective point of view, had more solidarity. Second, the elderly who were men and single, and who had poorer educational backgrounds thought of suicide, lacked social activities, and had poor health, from a subjective point of view. Third, family solidarity between old parents and adult children had significantly negative influence on the suicidal ideation of the elderly. Results - The study revealed the following implications. First, the preparation for old age should consider not only economic welfare but also the psychological welfare due to the relationship with children. Second, the phenomenon of elderly suicide because of a lack of family solidarity could increase national loss and have great influence upon welfare in old age. Therefore, planning of welfare services for the elderly should consider the value of relationships with children to improve the psychological welfare of the elderly. Third, the social expenses of government-oriented support for parents should be discussed from the people's point of view. Conclusions - The subjects of the study comprised the elderly at Seoul and Gyenggi-do; therefore, it would be difficult to extrapolate the findings to all the elderly in the nation. The subject visited senior welfare centers as well as halls for the elderly; therefore, it would be difficult to assume that the trends were representative of the elderly in the nation.