• 제목/요약/키워드: Data Collection Period

검색결과 786건 처리시간 0.027초

다목적댐 유입량 예측을 위한 Recurrent Neural Network 모형의 적용 및 평가 (Application of recurrent neural network for inflow prediction into multi-purpose dam basin)

  • 박명기;윤영석;이현호;김주환
    • 한국수자원학회논문집
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    • 제51권12호
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    • pp.1217-1227
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    • 2018
  • 본 연구에서는 순환신경망을 이용한 댐 유입량 예측모형의 적용성 검토를 목적으로 하고 있으며, 이를 위해 소양강댐 유역 및 충주댐 유역을 대상으로 그간 댐 운영을 통해 축적된 기상 및 수문 빅데이터를 활용하여 인공신경망 모형과 엘만 순환신경망 모형을 구축하였다. 모형의 학습과 예측을 위하여 유역별 유입량, 강우량, 기온, 일조시간, 풍속자료가 입력자료로 사용되었고 10일간 일별 댐유입량 자료가 모델의 출력자료로 구조화 하여 학습을 진행한 후 검증을 목적으로 2016년 7월 ~ 2018년 6월까지 2개년에 대한 댐 유입량 예측을 수행하였다. 학습된 모형의 유입량 예측 결과를 비교분석한 결과, 소양강댐 유역에서는 인공신경망 모형과 순환신경망 모형 간 예측성능은 큰 차이를 보이지 않았으며, 충주댐 유역에서는 순환신경망 모형의 예측 결과가 인공신경망 모형에 비해 비교적 우수한 성능을 보임에 따라 엘만 순환신경망을 이용하여 댐 유입량 예측모형을 구축할 경우 예측성능은 기존의 인공신경망 모형과 비슷하거나 다소 우수할 것으로 판단된다. 또한 엘만 순환신경망은 갈수기 댐 유입량 예측에 있어서 인공신경망에 비해 예측결과의 재현성이 우수한 것으로 나타났으며, 엘만 순환신경망 학습에 있어 다중 은닉층 구조가 단일 은닉층 구조보다 예측 성능 향상에 효과적인 것으로 분석되었다.

The Meaning of Good Dying of Chinese Terminally Ill Cancer Patients in Taiwan

  • Chao, Co-Shi Chantal
    • 한국호스피스완화의료학회:학술대회논문집
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    • 한국호스피스완화의료학회 2000년도 동계학술대회
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    • pp.162-174
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    • 2000
  • The purpose of this hermeneutic study was to investigate the meaning of "good dying" of Chinese terminally ill cancer patients in Taiwan; the factors related to this morning; and the strategies cancer patients used to ensure "good dying". Indepth unstructured interviews, prolonged participant observations, and review of clinical records were selected as the methods for data collection. In the four and one-half month period of data collection, the researcher was in the role of a full time clinical nurse specialist who directly took care of the subject patients in 4 hospitals and in patients' homes. The 20 subject were selected purposively according to selection criteria and various demographic backgrounds. Interview transcripts and field notes comprised the data for analysis. The results were composed by 3 constitutive patterns and 12 themes. Achieving inner peace appeared to herald the good dying state. The "good dying" for Chinese terminally ill cancer patients in Taiwan meant peace of body, peace of mind, and peace of thought. The constitutive pattern of peace of body included 4 themes: (1)minimizing the agony of physical symptoms; (2)short period of dying process without lingering death; (3) cleanliness, neatness, and integrity of the body; and (4) mobility. The constitutive pattern of peace of mind included 5 themes: (1) yielding; (2) non-attachment; (3) not to be lonely; (4) settle down all affairs; and (5) being in a preferred environment and enjoying nature. The third constitutive pattern of peace of thought included 3 themes: (1) getting through day by day without thinking; (2) meaningful life; and (3) expectation that the suffering would be ending. Through understanding of the terminally ill cancer patient' needs in their meanings of "good dying", recommendations can be made for humanistic care. The findings of this study have recommendations for care givers daily contact with dying patients and for medical and nursing education.

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광주·전남 지역의 물리치료학 전공 학생들의 임상실습만족도 (A Study on the Degree of Satisfaction on Clinical Practice for the Students in the Depart of Physical Therapy Located in Gwang-ju and Jeonnam)

  • 조남정;정준성
    • 대한통합의학회지
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    • 제1권2호
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    • pp.13-22
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    • 2013
  • Purpose : The purpose of the research is that get a cut above clinical practice effect through satisfaction of clinical training, practical training, content, oversight of training and evaluation system. Clinical training consists of part of university in Gwang Ju and Jeon nam. Method : The target of training student was studying at physiotherapy a tree or four-year-course collage in Gwang ju and Jean nam. Data collection period is from 21 November 2012 to 1 February. We explained how to do a means of collecting data and get students consent fill in questionnaire. Data collection prossed by using spss 10.1 program also independent proofs, descriptive statistics, crosstabulation, regression analysis and frequency analysis. Results : The subjects average age is 24 in general characteristic. A school system of subjects was a tree-year-course students. They were 58people(39.1%). A school system of subjects was a four-year-course students. They were 90people(60.9%).The male was 72(48.6%) and the female was 76(51.4%). We researched to know about satisfaction of clinical training, practical training, content, environment of practical establishment, trainee manage and evaluation method. All-round satisfaction of clinical training average was 1.90 Satisfaction of clinical training period and content average was 1.83Satisfaction of environment of practical establishment average was 1.88 Satisfaction of clinical training establishments' trainee manage and evaluation average was 1.94 Conclusion : It is important that student can get specific their future and can do at clinical throught clinical training after their graduation improving satisfaction of clinical training would give to impact a physical therapist reserve.

일제강점기의 광주학생독립운동 독서회 아카이빙에 관한 연구 (A Study on the Archiving of Gwangju Student Independence Movement Reading Club during the Japanese Colonial Period)

  • 장우권
    • 한국문헌정보학회지
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    • 제55권1호
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    • pp.593-618
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    • 2021
  • 이 연구는 광주학생독립운동과 독서회의 활동에서 생산된 자료수집과 자료해제를 통한 내용과 서지를 조사하여 독서회의 아카이브 형성과 효율적인 관리 방안을 제시하는데 있다. 이 연구는 문헌조사와 독립운동 관련 기관과 조직 등을 방문, 자료조사, 면담 등을 활용하여 이루어졌다. 연구의 결과는 광주학생독립운동의 의의, 3차례 발생, 참여학교와 학생 수, 독서회조직과 활동, 독립운동 참여형태, 광주학생독립운동 기록정보, 기록정보자원의 특징, 기록정보자원관리 현황, 기록정보자원의 수집체계와 아카이빙, 기대효과와 활용방안을 제시하였다.

일회성 무기체계 특성에 따른 고장 데이터의 오차 및 극복방안 (Failure Data Error according to Characteristics of One-Shot Weapon System and its Solution)

  • 최윤석;마정목
    • 한국군사과학기술학회지
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    • 제21권5호
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    • pp.599-606
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    • 2018
  • Failure data of systems in many field can be erroneous, which influences the reliability analysis of the systems. The general form of failure data is right censored data with accurate time information. But due to its nature of data collection in the military field, failure time of one-shot weapon systems can have errors which are related to the maintenance period. So this paper suggests a model that can reduce the error by utilizing interval censored data as an alternative to right censored data in weibull distribution.

지구력 훈련이 혈중 호모시스테인과 비타민 B 수준에 미치는 영향 -남자 고등학생 필드하키선수를 대상으로- (Effect of Endurance Training on the Plasma Honocysteine and B Vitamin Levels in Male Adolescent Field Hockey Players)

  • 강해선;이명천;유영채;장남수
    • Journal of Nutrition and Health
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    • 제37권10호
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    • pp.881-887
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    • 2004
  • Elevated plasma homocysteine is an independent risk factor for the development of cardiovascular disease. Exercise is generally believed to reduce the plasma homocysteine levels and therefore, being beneficial for cardiovascular disease (CVD). However, there is a possibility that athletes undergoing strenuous training and competition which increase oxidative stress may suffer from increased plasma homocysteine levels. The purpose of this study was to investigate the influence of endurance training on the plasma concentrations of B vitamins and homocysteine in 23 male adolescent field hockey players. Data collection and blood sampling was performed during the training period and non-training period. Following the training period, significant changes in energy and vitamin B6 intakes were observed in these subjects. Plasma vitamin B2, pyridoxal phosphate (PLP) and homocysteine levels were significantly higher during the training period than non-training period, whereas no difference was observed in plasma folate and vitamin B12 levels. Positive correlation was observed between plasma folate and folic acid intakes. When energy, B vitamin intakes were adjusted there was a significant negative correlation between plasma homocysteine levels and plasma riboflavin, folate and vitamin B12 levels. In conclusion, it is suggested that athletes with oxidative stress by strenuous exercise may need B vitamins since riboflavin, folic acid and vitamin Bl2 were shown to be negatively correlated with plasma homocysteine in athletes during the training period.

통일신라시대 와당의 식물 문양을 응용한 네일아트 디자인 연구 (A Study on Nail Art Design by Application of the Plant Patterns of the Wadang in the Unified Silla Period)

  • 조한솔
    • 한국의상디자인학회지
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    • 제24권3호
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    • pp.159-168
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    • 2022
  • With the recent proliferation of Hallyu content, national interest in Korea and the demand for designs with traditional Korean patterns as a motif is on the rise. In addition, as customers' design requirements tend to value more and more detailed and differentiated handcrafted designs, research on the motifs used in nail experts' original nail design development and nail design is continuously needed. Therefore, the purpose of this study is to expand the scope of nail design motifs with high practical value by producing nail design works applying plant patterns of Wadang, used during the Unified Silla Period, and to diversify nail art expression techniques. The research reviewed domestic and foreign literature related to Wadang during the Unified Silla Period, analyzed the collection at the National Museum of Korea, and categorized the motifs based on the characteristics of plant patterns and Wadang during the Unified Silla Period. The tangible motifs are intended to be presented as a fusion of nail art design works that utilizes both flat and stereoscopic art techniques. Through this study, it was confirmed that the plant pattern of Wadang from the Unified Silla Period is an attractive motif that can be expressed in various nail designs expressing Korean emotions and traditional beauty, and furthermore, it can be used as basic data for the idea of various beauty design areas.

산후 6개월동안 산모와 신생아의 가정간호 요구-후향적 방법 (Home Care Needs of Parturient Women and Neonates-Retrospective Study)

  • 장순복;최연순;박소미;박정숙;김은숙
    • 대한간호학회지
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    • 제29권3호
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    • pp.507-517
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    • 1999
  • The purpose of this study is to understand home care needs for parturient women and neonates up to the postpartum period. Methodology : The design of this study is a cross-sectional survey study. The subjects of this study are 88 postpartum mothers who delivered a first baby during the period from December 1996 to July 1997. Data collection was done with a structured questionnaire by mailing. Data were collected at the point of six months after delivery. A structured questionnaire composed of items related to home care needs. Data analysis was done with descriptive statistics. The study results are as follows : .The highest need was personal hygiene(93.2%) for the parturient women, and the peak period was the two week period after delivery. .The most frequent maternal needs regarding neonates were cord care (72.4%) during the first week, elimination(67.9%) during the first two weeks, baby crying(88.3%) and sleeping pattern(71.5%) at one month after delivery, and baby temperament(30.4%) at sixth months after delivery. .The mothers requested home care methods such as written material for self health care (35%) and counseling(34%) and direct home visits (5%) for neonate care. - Conclusion : The most important period for home health care needs was one week after delivery, and the health care needs for neonate temperament, behavior and sleeping pattern rose rapidly at the period of 6 months after delivery. Therefore it could be concluded that the postpartum home care should be done by those, written material should be enhanced for parturient women care, and counseling enhanced for neonate care.

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KTX 주행시 전차선 압상량 측정 결과 (Measured Data of the Contact Wire Uplift Amount at KTX running)

  • 권삼영;조용현;이기원;안영훈
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2004년도 추계학술대회 논문집
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    • pp.1372-1377
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    • 2004
  • The contact wire uplift amount was measured for the conventional and the high speed catenary during KTX dynamic test period. The contact wire uplift amount is considered as a important parameter in determining and designing of the specific catenary. The measurements were conducted in wayside and onboard of KTX through the high speed camera and the current collection video monitoring system installed in KTX roof. This paper describes the measured results.

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