• Title/Summary/Keyword: verified

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A Study on the Reliability and Validity of the Korean Version of Self-directed Learning Instrument (한국어판 자기주도 학습능력 측정도구의 신뢰도 및 타당도 검증)

  • Kwak, Eun Mi;Lee, Joo Young;Woo, Jin Ju
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.26 no.1
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    • pp.12-22
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    • 2019
  • Purpose: This study was done to verify the self-directed learning instrument (SDLI) developed to measure self-directed learning ability in nursing students. Methods: The participants for the study were 425 nursing college students. Their self-directed learning was verified using self-reports and results through questionnaires. SDLI was translated into Korean through translation/reverse translation process and its content validity verified by five experts. The validity of the instrument was verified through item analysis, exploratory factor analysis, and confirmatory factor analysis. Reliability verification was analyzed using internal consistency reliability. Results: Four factors were identified through exploratory factor analysis and 20 items of the original instrument were found to be valid. In the confirmatory factor analysis, the validity of the instrument was verified as the model was valid. The internal consistency reliability was also acceptable and SDLI was found to be an applicable instrument. Conclusion: SDLI has been developed and verified by selecting nursing students as participants for the study. Use if SDLI is expected to improve the quality of self-directed learning in nursing education and to be used in future nursing research.

Validity and Reliability of the Korean Version of Advance Directives Attitude Scale for Nurses (한국어판 사전연명의료의향에 대한 간호사 태도 도구의 타당도와 신뢰도)

  • Kim, Kyeongtae;Park, Youngry
    • Journal of Korean Critical Care Nursing
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    • v.15 no.2
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    • pp.64-76
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    • 2022
  • Purpose : This study aimed to verify the validity and reliability of the Korean version of the nurses' attitude scale toward advance directives of patients. Methods : We translated and back-translated the original tool consisting of 20 questions and tested and verified its content validity. Questions for which its content validity has been verified, a preliminary investigation was conducted among 20 nurses working in ICU, followed by the actual investigation. Data were analyzed using SPSS version 24.0 for Windows and Mac and AMOS version 24.0. To verify the validity, an item analysis was conducted for all 398 samples, and then an exploratory factor analysis for 200 samples that were randomly selected, followed by a confirmatory factor analysis for the remaining 198 samples. Results : Korean version of advance directives attitude scale (K-ADAS) consisting of 14 questions - 7 questions on 'patient rights,' 4 questions on 'role of a nurse,' and 3 questions on 'ethical judgment' - was verified its validity and reliability. Conclusion : In this study, the validity and reliability of the K-ADAS have been verified. We expect the verified tool to be useful in various fields that measuring the nurses' attitude toward advance directives of patients.

A Case Study of Biosafety Level-3 Research Facilities Validation (생물안전 3등급 연구 시설의 검증 사례)

  • Ju, Young-Duk;Kim, Jin;Son, Ik-Soo;Noh, Hee-Jeon
    • Proceedings of the SAREK Conference
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    • 2009.06a
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    • pp.887-892
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    • 2009
  • Biosafety research facilities require to verified about the facility and experimental environment, especially for level-3 and level-4 of biosafety research facilities verification is very important. In this paper, introduce verified procedures and present the methods and the results through a verified case of the biosafety level-3 research facilities.

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A TEST VERIFIED MODEL DEVELOPMENT STUDY FOR A NUCLEAR WATER CHILLER USING THE SEISMIC QUALIFICATION ANALYSIS AND TEST

  • Sur, Uk-Hwan
    • Nuclear Engineering and Technology
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    • v.43 no.4
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    • pp.355-360
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    • 2011
  • This paper is a study on a nuclear water chiller. It presents a test-verified finite element model of a water chiller to be used at a Nuclear Power Plant. The test-verified model predicts natural frequencies within 5% for all major modes below 50 Hz. This model accurately represents the dynamic characteristics of the actual hardware and is qualified for its use in the final stress analysis for seismic verification.

Failure Examples for Parasitic Current Leakage of Starting System in Automotive (자동차 시동시스템의 암전류 누설에 의한 고장사례연구)

  • Lee, Il-Kwon;Kim, Chung-Kyun;Cho, Seung-Hyun
    • Tribology and Lubricants
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    • v.26 no.5
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    • pp.277-282
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    • 2010
  • The purpose of this paper is to study and analysis the failure examples for parasitic current leakage produced in starting system on gasoline engine. It verified the discharge of battery by electric leakage because of internal wiring damage problem for CD auto changer installed in car. Also, it verified the no-stating phenomenon because of deposit forming by chemical reaction of battery fluid between battery post and cable fixing parts. It verified the damage for brush holder and commutator mixing by internal short phenomenon because of brush carbon a particle and engine oil that was flowed into internal of starting motor. It verified the working phenomenon of audio by a point of contact even if the driver turn to "LOCK" position the key.

A Test Verified Model Development Study for Seismic Qualification(Safety) (내진검증(안전)을 위한 실험적 고찰을 이용한 해석 모델 개발연구)

  • Uk-Hwan Sur
    • Journal of the Korean Society of Safety
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    • v.13 no.4
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    • pp.286-291
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    • 1998
  • This paper includes discussion on developing the test verified finite element model for one of the seismic qualification(safety) approaches. It presents a test verified finite element model of a UPS(Uninterruptible Power Supply System) to be used at KMRR, KAERI. The test verified model predicts natural frequencies within 5 percent error for all major modes below 50Hz. This model accurately represents the dynamic characteristics of the actual hardware and is qualified for its use in the final stress analysis for seismic verification.

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TTA 시험$\cdot$인증 서비스 - 네트워크장비 분야 - ㈜브레인투엔티원 NetHole AG800 VoIP, Gateway TTA Verified 인증 획득

  • 유지원;장웅
    • TTA Journal
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    • s.85
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    • pp.158-162
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    • 2003
  • TTA(한국정보통신기술협회)는 2002년 11월 26일 ㈜브레인투엔티원(www.brain21.com)의 VoIP Gateway(모델명: NetHole AG800)에 대하여 기능 및 성능시험을 수행하여 TTA Verified 인증서(번호: TTA-V-02-003)를 발급하였다.TTA는 ㈜브레인투엔티원의 NetHole AG800 Gateway에 대한 기능확인 및 성능평가를 위해 H.323 VoIP 소용량 Gateway TTA Verified 인증기준에 따라 54개의 시험항목을 측정하였다. 본 고에서는 Cisco AS5400 Gateway, Cosmobridge CMC3000 Gatekeeper, Cosmobridge CTG3400 Gateway와 연동하여 그 기능이 TTA Verified 시험인증 기준에 따라 모두 정상적으로 동작하는지 확인하고 24시간 운용기준 호완료율 측정, 음성품질을 측정하여 이에 대한 시험결과를 소개한다.

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A Geothermal Model of Pit Area Using Computational Fluid Dynamics (CFD를 이용한 피트의 지중열 모델 구축에 관한 연구)

  • Min, Joon Ki;Kim, Jeong Tai
    • KIEAE Journal
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    • v.8 no.5
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    • pp.11-16
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    • 2008
  • This research has established CFD model on pit's cool-tube system through heat and air movement simulations, of which data was based on experimental and verification. This research work verified the effectiveness of the cool-tube system by analysing temperature, humidity and air current of the actually installed case. Also, we analysed heat transfer through air current simulation and the results are as followings. Firstly, we experiment on temperature, humidity and speed of air currents of the cool tube system with pit space during the month of May (spring). The average exterior temperature was $16.1^{\circ}C$, and $18.2^{\circ}C$ for the pit, $24.7^{\circ}C$ for the compressor room. Secondly, based on measured data of real case, we have analysed heat transfer through air current simulation and verified our proposed model. The actual measurement of average temperature of exhaust air of the pit's area is $19.7^{\circ}C$ with tolerance of $-0.33^{\circ}C{\sim}-0.6^{\circ}C$ compared to above simulations. Thirdly, having verified air current simulation model with formation of 260,000 and 1,000,000 cells, we could get reasonable near values with 260,000 cells. Lastly, the next step of research would be focused on proposing the best possible pit's cool-tube system after analysis of heat transfer of the air current simulation based on verified CFD model.

Failure Study for Tribological Characteristics Including with Pad, Lining and Hub disk in Vehicle Brake System (자동차 제동시스템의 패드, 라이닝, 허브디스크에 관련된 트라이볼로지적인 특성에 관한 고장사례연구)

  • Lee, Il-Kwon;Kim, Chung-Kyun;Cho, Seung-Hyun
    • Tribology and Lubricants
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    • v.27 no.5
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    • pp.269-274
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    • 2011
  • The purpose of this paper is to study and analyze the improvement method for the failure examples including the vehicle brake system in actual field. It was verified that the indicator plate of pad wear scratched the brake disk because of wearing after displacement of non- identification parts pad. The caliper of other vehicle was installed with brake system verified the phenomenon produced groove in center point because of one side wear when the pad was not fully contacted with the rub disk by other action surface pressure and pad action condition. It verified that the crack phenomenon fatigue was produced by brake thermal deformation because of decreasing the thickness by grinding to modify the non-uniformed wear of brake disk. It verified that the friction sound was produced by the friction phenomenon because of non-uniformed contact of lining and an alien substance with inner of the drum and lining braking by crack phenomenon with brake drum surface.

Reliability and Validity Tests of Patient Classification System Based on Nursing Intensity (간호강도에 의한 환자분류도구의 신뢰도 및 타당도 검증)

  • Park, Jung-Ho;Kim, Eun-Hye
    • Journal of Korean Academy of Nursing Administration
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    • v.13 no.1
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    • pp.5-16
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    • 2007
  • Purpose: This study is to verify the validity and reliability of classified items and criteria of the patient classification system(PCS) based on Park's definition of nursing intensity. Methods: An expert group of 8 persons verified the content validity of the tools. The 1817 inpatients at a tertiary hospital in Seoul, Korea were classified into 4 groups according to two tools for verifying concurrent validity and interraters' reliability. These verifications were performed from September to October, 2004. Results: Nursing domains of the tools have been divided into 12 items: hygiene, nutrition, elimination, exercise & activity, education & counseling, emotional support, communication & consciousness, treatment & examination, medication, measurement & observation, coordination of multidisciplinary team, admission & discharge & transfer management. Content validity was verified by the content validity index(above 0.75 in all 12 areas). Interraters' reliability was no significant difference in the results of the patient classification between the two raters(A group 93.75%. B group 88.24%). Concurrent validity was also verified by the agreement of two tools(73.7%). Conclusion: These results showed that the reliability and validity of the PCS based on the nursing intensity were verified. These will use an data for nursing productivity in the future.

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