• 제목/요약/키워드: dependency test

검색결과 379건 처리시간 0.034초

npn MOS 영상소자의 블루밍억제에 관한 연구 (Blooming Suppression of an npn MOS Image Sensor)

  • 갑형철;민홍식;이종덕
    • 대한전자공학회논문지
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    • 제25권4호
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    • pp.417-421
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    • 1988
  • In order to analyze the blooming suppression mechanism of a MOS image sensor, test photodiodes have been fabricated and characterized by attaching a source follower circuit. The blooming suppression ability of npn structure compared to that of np structure is quantitatively analyzed and measured by experiment. The dependency of the blooming current on the substrate voltage, the vertical MOS gate voltage and the video voltage is measured and the optimum condition for blooming suppression is presented.

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SFRC 보에 대한 System Identification (System Identification on SFRC Beam)

  • 이차돈
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 1991년도 봄 학술발표회 논문집
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    • pp.3-7
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    • 1991
  • Considering the relatively large amount of stable flexural teat results available for steel fiber reinforced concrete (SFRC) and their dependency on the constitutive behavior of the material, a technique called “System Identification” is used for interpretating the flexural test data in order to obtain basic information on the tensile constitutive behavior of steel fiber reinforced concrete. “System Identification” was successful in obtaining optimum sets of parameters which provide satisfactory matches between the measured and predicted flexural load-deflection relationships.

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아키텍쳐 기술로부터 도출한 의존성 정보를 이용한 데스트 케이스 생성 (Test Case Generation using Dependency Information derived from Architecture Description)

  • 허유진;오승욱;서희석;권용래
    • 한국정보과학회:학술대회논문집
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    • 한국정보과학회 2001년도 가을 학술발표논문집 Vol.28 No.2 (1)
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    • pp.379-381
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    • 2001
  • 컴포넌트기반 소프트웨어의 신뢰도를 높이기 위해서 개별 컴포넌트의 데스팅과 더블이 통합된 컴포넌트들이 올바르게 동작하는지 테스팅할 필요가 있다. 이 논문에서는 컴포넌트기반 소프트웨어에서 컴포넌트의 구성과 통신에 관한 정보를 얻기 위해 아키텍쳐 기술에서 제어 의존성과 자료 요소를 식별하여 테스트 모델을 구축한다. 구축한 테스트 모델에서 테스트의 단위가 되는 OFU(Observable functional Unit)을 식별하고 자료 의존성을 이용하여 OFU의 수행 순서를 결정한다.

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뇌졸중(腦卒中) 환자(患者)의 신체적(身體的).심리적(心理的).사회적(社會的) 적응도(適應度)에 관(關)한 연구(硏究) (A Study on the Degree of Physical, Psychological and Social Adaptation of CVA Patients)

  • 황현숙;박경숙
    • 기본간호학회지
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    • 제3권2호
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    • pp.213-233
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    • 1996
  • This study was made on 274 apoplectics patients who received the rehabilitation therapy and tests on physical, psychological and social adaptations as outpatients in 23 general hospitals in the Seoul and Kyungi area. The basic data on degree of improvement of apoplectic patients studied from rehabilitation therapy. Data was collected over a period of 63 days, from February 21st till April, 23, 1996. The assigned physical therapist conducted direct interviews with patients after he answered the distributed questionnaires for each individual patient. The colleted data was processed by the $SPCC/C^+$ method. The results of the tests conducted to meascne the the degree of ADL dependency, depression and social activity corresponding to the physical, psychological, and social adaptation. The details are ; 1) The test to meascne the degree of ADL dependency, corresponding to the study of physical adaptation of CVA patients, indicated a mean score of 2.57(ideal score is 1.0) with a standard deviation of ${\pm}0.75$. The worst score was 3.95 while the best score was a perfect 1.0, representing a severe range of dependency. The distribution was centered with a median of 2.65 and a mode of 2.68. 2) The test to meascne the degree of depression which corresponds to the level of psychological adaptation yielded a mean of 2.99 which is higher than the normal limit of 2.45. The standard deviation was ${\pm}0.52$ and the worst score and the best score were 4.35 and Respectirdy. The distribution was centered with a median of 3.00 and a mode of 3.00. 3) The test to meascne the degree of social activities for the level of social adaptation indicated a very low mean score of 26.52 (perfect score is 144), with the standard deviation of ${\pm}16.23$. Some patients scored as high as 100, but others scored as low as 3. The distribution of social activities at a very low level was shifted to the left with a median of 24.00 and a mode of 20.00. 4) Factors influencing the level of physical, psychological and social adaptation are as follows : Factors significantly influencing the level of physical adaptation measured by ADL dependency are age, personal guardian, payer of medical expenses, and paralysis of the right arm, right leg and facial paralysis. Factors significantly influencing the level of psychological adaptation measured by the degree of depression, are age, marital status, education, medical history of individual and family, speech impediment, and facial paralysis. Factors significantly influencing the level of social adaptation measured by the degree of social activity are age, marital status, education, employment status, and the burden of medical expense. 5) The Corelationship is significant(9.00), between ADL dependeing as degree of physical adaptation and depreseion as degree of psychologial adaptation. ADL dependency is proportional to depression. But social activity is inversely protional to ADL dependeny and depression. In conclusion, the increased care for physical function of the patients is not the only necessary means to better facilitate the appropriate adaptation of CVA patients. The introduction of a solid rehabilitation program for psychological and social adaptation will also play the integral part of the treatment of CVA patients.

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대학생의 수면 관련 요인에 대한 융합 연구 : 스마트폰 의존을 중심으로 (A Convergence Study on Influencing Factors on the Sleep of University Students -Focusing on the Dependence of Smartphone-)

  • 한숙정;천지영
    • 한국융합학회논문지
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    • 제10권12호
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    • pp.465-476
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    • 2019
  • 본 연구는 Spielman의 3P 모델을 바탕으로 하여, 대학생의 수면과 그 영향요인을 알아보고자 한 융합 연구이다. 대상자는 시험을 1~2주 앞둔 대학생 및 대학원생 191명이며, 수면의 질과 관련 변수로 자기통제력, 스트레스, 시험 불안, 스마트폰 의존 정도, 주간 졸림증을 고려하였다. 좋은 수면군과 나쁜 수면군으로 나누어 두 군간 수면의 질을 비교하기 위해 Chi-square test, t-test를 이용하였고, 수면의 질과 일반적 특성 및 자기통제력, 스트레스, 시험 불안, 스마트 의존 정도, 주간 졸음증과의 상관관계 파악을 위해 Pearson's coefficient correlation 분석을 사용하였다. 수면을 방해하는 촉발요인으로 스트레스와 시험불안, 그리고 수면 장애를 지속시키는 요인으로 스마트폰 의존, 수면 관련 요인인 주간 졸림증이 수면의 질과 관련요인으로 나타났고, 생물심리학적 영역인 유발요인으로써 자기통제력은 통계적으로 유의한 관련성을 보이지 않았다. 대학생의 수면의 질을 향상시키기 위해 수면을 방해하는 요인인 스트레스 및 시험 불안, 그리고 수면장애를 지속시키는 스마트폰 의존과 같은 정신 건강의 개선을 위한 방안이 필요하며, 이를 통해 수면의 질이 향상될 것이라 생각된다.

경수 및 공기중에서의 지르칼로이-4 튜브의 프레팅 마멸특성 비교 (A Comparison of Fretting Wear Characteristics of Zircaloy-4 Tube in Light Water and in Air)

  • 조광희;김태형;김석삼
    • 한국윤활학회:학술대회논문집
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    • 한국윤활학회 1999년도 제29회 춘계학술대회
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    • pp.303-309
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    • 1999
  • The fretting wear behaviour of Zircaloy-4 tube used as the fuel rod cladding in PWR nuclear power plants has been investigated at the different test environment, in light water and in air as a function of slip amplitude, normal load, test duration and frequency. Zircaloy-4 tubes were used for both of oscillating and stationary specimens. A fretting wear tester was designed to be suitable for this fretting test. The wear volume and specific wear rate of Zircaloy-4 tube in water were greater than those in air under various slip amplitude. It was found that delaminate debris and surface cracks were observed at low slip amplitude and high load in water Experimental results showed that the light water accelerated the wear of Zircaloy-4 tube at low slip amplitude in fretting.

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A Psychological Model for Mathematical Problem Solving based on Revised Bloom Taxonomy for High School Girl Students

  • Hajibaba, Maryam;Radmehr, Farzad;Alamolhodaei, Hassan
    • 한국수학교육학회지시리즈D:수학교육연구
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    • 제17권3호
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    • pp.199-220
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    • 2013
  • The main objective of this study is to explore the relationship between psychological factors (i.e. math anxiety, attention, attitude, Working Memory Capacity (WMC), and Field dependency) and students' mathematics problem solving based on Revised Bloom Taxonomy. A sample of 169 K11 school girls were tested on (1) The Witkin's cognitive style (Group Embedded Figure Test). (2) Digit Span Backwards Test. (3) Mathematics Anxiety Rating Scale (MARS). (4) Modified Fennema-Sherman Attitude Scales. (5) Mathematics Attention Test (MAT), and (6) Mathematics questions based on Revised Bloom Taxonomy (RBT). Results obtained indicate that the effect of these items on students mathematical problem solving is different in each cognitive process and level of knowledge dimension.

비선형 탄성계수를 이용한 재료변질 상태평가에대한 기초적 연구 (A Basic Research on Estimation of Material Condition by Using Nonlinear Elastic Modulus)

  • 김경조;장경영
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 1995년도 춘계학술대회 논문집
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    • pp.348-352
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    • 1995
  • In the conventional linear elasticity, ultrasonic velocity is determined by elastic modulus and density of te medium which ultrasonic wave propagates through. But, practical ultrsonic wave depends on the stress acting in the medium, and as the stress increases such dependency becomes nonlinear. This nonlinear dependencyof ultrasonic velocity on stress can be identified by using nonlinear elastic modulus up to 4th order. In thid paper, with the above background relationships between nonlinear elastic modulus and the internalstatus of materials, normal, plastic deformed or heat stressed, are discussed. For this purpose, a new type of measuring system extended from the general nondestructive UT(ultrasonic test) equipment is constructed.

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생애전환기 건강진단 노인 수검자의 독감 백신 접종 영향 요인 (The Influencing Factors of Influenza Vaccination in the Elderly Participating in Lifetime Transitional Health Examination)

  • 임은실;김경하;채현주
    • 지역사회간호학회지
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    • 제21권4호
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    • pp.502-511
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    • 2010
  • Purpose: The purpose of this study was to investigate the influencing factors of influenza vaccination in the elderly participating in lifetime transitional health examination. Methods: This study was a secondary analysis of data collected from lifetime transitional health examination (for 66-year-old people) conducted by the National Health Insurance Corporation (NHIC) from January 1 to December 31, 2008. Questionnaires were received from NHIC to obtain information regarding gender, chronic diseases, health-related behaviors, and ADL. A total of 255,333 participants who responded all the questions in the questionnaire were included in the analysis. Collected data were analyzed by descriptive statistics, ${\chi}^2$ test, and multiple logistic regression. Results: The influenza vaccine coverage rate in 66-year-old people was 66.1%. The influenza vaccine coverage rate was higher in female elders and those with hypertension, diabetes, heart disease or past smoking, and lower in those with stroke, current smoking, drinking, no-exercise or ADL-dependency. Conclusion: Strategies for improving the influenza vaccination coverage rate in the elderly are needed. The strategies should give priority to the elderly with current smoking, drinking, and no-exercise, and home visiting programs are needed for the elderly with stroke and ADL-dependency.