• 제목/요약/키워드: standardized test

검색결과 1,001건 처리시간 0.028초

가뭄빈도해석을 통한 가뭄심도-지속시간-생기빈도 곡선의 유도 (Derivation of Drought Severity-Duration-Frequency Curves Using Drought Frequency Analysis)

  • 이주헌;김창주
    • 한국수자원학회논문집
    • /
    • 제44권11호
    • /
    • pp.889-902
    • /
    • 2011
  • 본 연구에서는 한반도에서 발생했던 과거 가뭄사상의 정량적 평가를 위한 가뭄심도-지속기간-생기빈도(Severity-Duration-Frequency, SDF) 곡선을 유도하기 위해서 가뭄지수를 이용한 빈도해석을 실시하였다. 분석지점으로는 4대강 유역을 중심으로 하는 기상청 산하의 서울, 대전, 대구, 광주, 부산관측소를 선정하였으며 강수자료는 1974~2010년(37년)의 강수 자료를 이용하였다. 가뭄빈도해석에는 기상학적 가뭄지수인 SPI (Standardized Precipitation Index)를 선정하였으며 확률분포형에 대한 적합도 검정에서는 일반극치분포(GEV, Generalized Extreme Value)가 최적의 확률분포형으로 선정되었다. 가뭄지수의 빈도해석 통하여 유도된 주요 관측소별 SDF (Severity-Duration-Frequency) 곡선을 이용하여 과거의 주요 가뭄사상에 대한 재현기간을 제시하였으며 1994~1995년 가뭄의 경우 남부지방을 중심으로 하는 극심한 가뭄으로서 광주관측소에서는 50~100년, 부산관측소에서는 100~200년의 높은 재현기간을 나타내었다. 그밖에 1988~1989년 가뭄의 경우 서울관측소에서는 300년의 재현기간을 나타내었다.

대도시 보건소 동단위 방문간호 대상자의 군분류 및 표준 방문간호서비스 경로 개발을 위한 기초연구 (A Preliminary Study on the Classification of Visiting Nursing Service Recipients and the Development of Standardized Visiting Nursing Service Pathways Based on Public Health Center)

  • 황라일;유호신;석민현;진달래
    • 지역사회간호학회지
    • /
    • 제16권4호
    • /
    • pp.381-391
    • /
    • 2005
  • Purpose: The purpose of this research is to develop and classify district visiting nursing standards and to standardize visiting nursing service pathways. Method: This research was conducted as a focus group study and analyzed visiting nursing records. We surveyed 201 recipients at urban health centers, who were selected through convenient sampling, from April 2003 to November 2003. Result: First, visiting nursing service recipients were classified into four groups according to household and financial characteristics, existence of disease, ability of self-care, and existence of home care service needs. Standardized pathways of the selected items were assessment. nursing care plan, disease management and promotion of self-care ability for Level I (mean=12.2 visits). For Level II (7.3 visits) were offered assessment. disease management. health education. and health promotion services. For Level III (5.2 visits) were offered assessment. disease management. health education and health promotion services, and for Level IV (2.7 visits) were offered thorough assessment, education for self-care and health promotion. Conclusion: The visiting nursing service pathways identified in this research need to be developed further as basic materials applicable to quality assurance and agency evaluation. For this, we suggest repeated research and test to apply the derived standardized visiting nursing services pathways in visiting nursing programs.

  • PDF

메타분석을 이용한 카페인의 지질대사효과 (Lipid metabolic effects of caffeine using meta-analysis)

  • 김나정;최기헌
    • Journal of the Korean Data and Information Science Society
    • /
    • 제23권4호
    • /
    • pp.649-656
    • /
    • 2012
  • 카페인의 지질대사효과에 대해 알아보고자 헤지의 표준화된 평균차를 이용하여 메타분석을 하였다. 카페인의 투여여부에 따라 실험군과 대조군으로 나눈 후 실험쥐들의 각 기관의 무게, 혈중 콜레스테롤 등 8개 변수를 관심변수로 두었다. 고정효과모형에서는 체중의 감소, 심장무게의 감소, 혈중 총지질의 감소, 혈중 중성지방의 감소, HDL콜레스테롤의 증가, LDL 콜레스테롤의 증가, 간 중성지방의 감소에 유의한 효과를 보였다. 하지만 모두 동질성을 만족하지 않아 랜덤효과모형을 적용한 결과 체중의 감소, 심장무게의 감소, 혈중 총 총지질의 감소, 혈중 중성지방의 감소, HDL 콜레스테롤의 증가, LDL 콜레스테롤의 감소, 간 중성지방의 감소에 유의한 효과를 보였다.

Evaluation of standardized ileal digestibility of amino acids in fermented soybean meal for nursery pigs using direct and difference procedures

  • Ki Beom, Jang;Sung Woo, Kim
    • Animal Bioscience
    • /
    • 제36권2호
    • /
    • pp.275-283
    • /
    • 2023
  • Objective: This study was to evaluate standardized ileal digestibility (SID) of amino acids (AA) in fermented soybean meal (FSBM) for nursery pigs using both direct procedure and difference procedure when FSBM was added at 20% in diets. Methods: Forty-eight pigs at 9.2±0.9 kg body weight (BW) were individually housed and allotted to 4 treatments. Treatments included NFD (a semi-purified N free diet), FSD (a diet with 20% FSBM), CBD (corn basal diet), and CFD (corn basal diet:FSBM at 80:20). The FSD was used to measure AA digestibility in FSBM using the direct procedure, whereas CBD and CFD were used in the difference procedure. Pigs were fed for 10 days (0.09×BW0.75 kg per day) and euthanized to collect ileal digesta for TiO2 and AA. Results: Total endogenous AA loss was 12.1 g/kg of dry matter intake. The apparent ileal digestibility (AID) Thr was greater (p<0.05) and AID His (p = 0.073) and Leu (p = 0.052) tended to be greater using the direct procedure compared with the difference procedure. The SID Thr were greater (p<0.05) in FSBM for nursery pigs calculated using a direct procedure compared with a difference procedure. In addition, SID Lys in FSBM was about 83% to 88% for nursery pigs higher than SID Lys described in National Research Council (2012). Conclusion: The SID of AA in FSBM when included at practical levels using the direct procedure were similar to those from the difference procedure. Considering the SID of AA obtained using both direct and difference procedures, FSBM is an effective protein supplement providing highly digestible AA to nursery pigs. The SID of AA from this study was considerably higher than those previous reported. This study also indicates the importance of including the test feedstuffs at practical levels when evaluating digestibility.

방한용 화섬솜의 섬도 측정방법의 표준화에 관한 연구 (A Study on the Standardization of Fineness Measurement for the Thermal Insulator of Military Textiles)

  • 홍성돈;김병순
    • 품질경영학회지
    • /
    • 제43권3호
    • /
    • pp.253-272
    • /
    • 2015
  • Purpose: The purpose of this study is to enhance the reliability of quality inspection by standardize the fineness test method of the thermal insulator of military textiles Methods: We have measured the thermal insulator of military textiles by microscope with three different ways and the effectiveness of their difference were analyzed by one-way layout design. Results: We have suggest the standardized the fineness test method of the thermal insulator of military textiles through advanced research. As a result we have verified hollow ratio of heat insulating fiber affect fineness test methods. The fineness test method for the thermal insulator applied with different methods following hollow ratio. We have verified that when the hollow ratio over 90%, the fineness of the thermal insulator measured from fiber-length, if it has over 80%, the cross-section length of hollow and if it has less 80%, the cross-section area of hollow is applied, respectively. Conclusion: This study indicated that the test method of fineness shows high reliability. Heat insulating fibers which have high evenness shows narrow variations(5/% or less, only CV 25%) irrespectively under different testing equipment or institute. Based ons the results, we have suggest the standardization of test methods for fineness by microscope method and produced the registration of Group Standard in Korean Standards Association.

건축용 비내력 경량벽체의 정적 수평하중저항성 시험방법의 표준화 (Standardization of Stiffness Test Method of Non-bearing Lightweight Wall for building)

  • 김진식;최수경
    • 한국건축시공학회:학술대회논문집
    • /
    • 한국건축시공학회 2015년도 춘계 학술논문 발표대회
    • /
    • pp.185-186
    • /
    • 2015
  • The use of non-bearing lightweight wall has increased recently due to the increase of high-rise buildings and supply of long-life housing. Lightweight wall has advantages such as reducing the self-weight of the building, convenience in installation, and shortening construction period, however, must have a sufficient strength to external force. This study standardized the stiffness (static horizontal load resistance) test method for lightweight walls by using the actual impact load obtained through the load analysis test conducted in the previous studies. The size of specimen was set up as height 2.4m and width 3.0m. Test apparatus and test methods were referred to BS 5234-2:1992. However, the loading level applied to the specimen was divided into 3 steps (3000N, 1000N, 500N) that can be applied selectively depending on the purpose of the wall. The deformation characteristics according to the same loading level were vary depending on the specimen's type, and the evaluation criteria for functional damage may vary depending on the material, method of construction, and purpose of wall. Therefore, we did not suggest unified evaluation criteria of the stiffness to the test results.

  • PDF

발암성 흡입독성 시험물질선정 신뢰도 향상방안에 관한 연구 (A Study on the Selection of Reliable Carcinogenic Inhalation Toxicity Test Substances)

  • 조중래;임경택;이종호
    • 한국산업보건학회지
    • /
    • 제31권3호
    • /
    • pp.185-193
    • /
    • 2021
  • Objectives: Inhalation toxicity testing of chemical substances to identify carcinogenicity requires a long time and considerable cost, so the selection of test candidates is a very important aspect. This study was performed to determine optimal procedures for selecting carcinogenic inhalation toxicity test substances as conducted by the Occupational Safety and Health Research Institute (OSHRI). Methods: At the beginning, a database was constructed containing complex information such as usage amount, hazard, carcinogenicity prediction, and testability in order to select chemicals requiring carcinogenicity testing. Selection of test substances was carried out with priority given to usage, carcinogenicity, and testability. Results: Chemicals used in large quantities in industrial fields and strongly suspected of carcinogenicity were winnowed down to 12 substances, and these substances were scheduled for future testing by OSHRI. Conclusions: For the stable and reliable operation of carcinogenicity tests as conducted by OSHRI, this study standardized the procedures for selecting carcinogenicity test substances and suggested the introduction of various carcinogenicity prediction techniques.

가정호스피스 대상자를 위한 간호중재 표준서 개발 (Development of Nursing Intervention Standards for Home Hospice Patients)

  • 용진선;김남초;강진형
    • 성인간호학회지
    • /
    • 제18권1호
    • /
    • pp.102-114
    • /
    • 2006
  • Purpose: The purpose of this study is to develop a set of standardized nursing interventions and their associated nursing activities according to the NIC system to guide home care nurses in performing nursing intervention activities for hospice patients. Method: This study was a descriptive survey that first identified frequently used & specialized hospice nursing interventions based on the NIC systems and next validated a set of standardized nursing interventions and their associated nursing activities. One hundred chart records of home hospice patients were used to identify nursing interventions. Also, thirty-nine hospice specialized nurses participated twice using the Delphi technique to test the content validity of the standards. Results: Among the nursing interventions, 19 important nursing interventions and 418 associated nursing activities were selected after two rounds of Delphi technique by hospice specialized nurses. The mean content validity of the final nursing activities was 0.82. In this paper, only the 3 most frequently used nursing interventions and 3 hospice specialized nursing interventions with their associated nursing activities are presented since space is limited. Conclusion: The nursing intervention standards will be a basis for home hospice nurses to improve quality of hospice care for hospice patients.

  • PDF

골밀도 검사를 받은 여성의 골량증진행위 변화단계 판별요인 (Discriminating Factors of Stages of Change in Bone Mass Promoting Behaviors after Bone Mineral Densitometry)

  • 이은남;손행미
    • 성인간호학회지
    • /
    • 제19권3호
    • /
    • pp.389-400
    • /
    • 2007
  • Purposes: This study was designed to explore the stage distribution of subjects according to stage of change for calcium intake and for exercise, and to identify factors that could discriminate among subjects in various stages. Methods: The sample consisted of 142 subjects who had taken bone mineral densitometry tests. The instruments used in this study were the Stage Placement Instrument for Calcium Intake and Exercise, the Osteoporosis Health Belief Scale and the Osteoporosis Knowledge Test, and the Osteoporosis Self Efficacy Scale. Data were analyzed using chi square, ANOVA, and discriminant analysis by using the SPSS 12.0 program. Results: For calcium stages, economic level, calcium knowledge, positive social norms for calcium intake, & educational level showed high standardized canonical discriminant function coefficients. For exercise stages, exercise efficacy, susceptibility, exercise benefit, educational level, positive social norm to exercise, educational level, and exercise barrier showed high standardized canonical discriminant function coefficients. Conclusion: This study implies that bone mass promoting program incorporating a stages of change model can be applied as useful nursing intervention.

  • PDF