• 제목/요약/키워드: Evaluation and Implementation

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Response evaluation and vibration control of a transmission tower-line system in mountain areas subjected to cable rupture

  • Chen, Bo;Wu, Jingbo;Ouyang, Yiqin;Yang, Deng
    • Structural Monitoring and Maintenance
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    • 제5권1호
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    • pp.151-171
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    • 2018
  • Transmission tower-line systems are commonly slender and generally possess a small stiffness and low structural damping. They are prone to impulsive excitations induced by cable rupture and may experience strong vibration. Excessive deformation and vibration of a transmission tower-line system subjected to cable rupture may induce a local destruction and even failure event. A little work has yet been carried out to evaluate the performance of transmission tower-line systems in mountain areas subjected to cable rupture. In addition, the control for cable rupture induced vibration of a transmission tower-line system has not been systematically conducted. In this regard, the dynamic response analysis of a transmission tower-line system in mountain areas subjected to cable rupture is conducted. Furthermore, the feasibility of using viscous fluid dampers to suppress the cable rupture-induced vibration is also investigated. The three dimensional (3D) finite element (FE) model of a transmission tower-line system is first established and the mathematical model of a mountain is developed to describe the equivalent scale and configuration of a mountain. The model of a tower-line-mountain system is developed by taking a real transmission tower-line system constructed in China as an example. The mechanical model for the dynamic interaction between the ground and transmission lines is proposed and the mechanical model of a viscous fluid damper is also presented. The equations of motion of the transmission tower-line system subjected to cable rupture without/with viscous fluid dampers are established. The field measurement is carried out to verify the analytical FE model and determine the damping ratios of the example transmission tower-line system. The dynamic analysis of the tower-line system is carried out to investigate structural performance under cable rupture and the validity of the proposed control approach based on viscous fluid dampers is examined. The made observations demonstrate that cable rupture may induce strong structural vibration and the implementation of viscous fluid dampers with optimal parameters can effectively suppress structural responses.

제왕절개분만 산욕부와 신생아의 가정간호 사례분석 (A Case Analysis of Home Health Care for Cesarean Postpartum Women and Their Newborns)

  • 김혜숙;최연순;전은미
    • 대한간호학회지
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    • 제24권4호
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    • pp.696-705
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    • 1994
  • This study was done to provide a basis for home health care management for women following Cesarean delivery. Furthermore it was initiated as an possible application of home health care in the future. In this study, client selection criteria was developed by the researcher and assessment tools for home health care, recording system and problem oriented recording system were revised from Jun's(1993) methods. The selection criteria tool for home health care for women who had a Cesarean delivery was structured and consisted of five areas : physical status, functional status, psychological-emetional status, educational needs status and environmental status. The structured assessment tool consisted of general items, obstetric history, past medical history, methods of feeding, medications taken before ad-mission, laboratory results, discharge instructions, discharge medications, family tree, economic status, environmental status, a map, health assessment of women and their newborns. The visit note consisted of the date : nursing problems : nursing process including initial assessment : nursing goals : visit plan : health status of the postpartum women and their newborn : nursing diagnoses : nursing implementation evaluation : summary : next visit plan and revision. The problem oriented recording system consisted of the date, problem numbers, nursing diagnoses, problem appearance date, problem resolution date. The results of the research are as follows : The seven cases having had a Cesarean delivery were discharged on an average on the 5th day after the Cesarean birth. The total number of home visits was 13. According to Cordon's functional health patterns the total possible nursing diagnoses was 34 diagnoses for the methers and their newborns. Among the 34 diagnoses, there were 13 diagnoses in the health perception /management pattern, 7 in the psychosocial health perception / management pattern, 8 in the psychosocial self-perception, 2 in the nutrition / metabolism pattern of physical function, 2 in the knowledge deficit of newborn management, anxiety related to newborn management, knowledge deficit related to disease process of new-born, anxiety related to disease process of newborn anxiety related to prognosis of baby's condition, knowledge deficit related to newborn jaundice each appeared once. The changes in the number of nursing diagnoses was related to not the number of visits but to the number of nursing diagnoses decreasing. The con-tent of the home health care was categorized ac-cording to assessment, direct care, counseling, education, family care. The recommendation based on the results of this research are Home health care nurses for Cesarean postpartum women and their neonates requires comprehensive knowledge of pregnancy, delivery, and the postpartum period and of the neonate so that they can provide appropriate care and holistic views. Most of cases terminated after the second visit, this outcome may be related to the subjects being discharged on the 5th day after delivery. Therefore, study done with earlier discharge after delivery may have different outcome. It is very hard to assess psychological aspects that need follow-up and to develop communication channels.

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Evaluation of the Knowledge and Perceptions with Regards to Pictorial Health Warnings on Tobacco Products among Tobacco Users Diagnosed with Head and Neck Carcinoma: a Study from the Kumaon Hills of India

  • Pant, Nirdosh Kumar;Pandey, Kailash Chandra;Madabhavi, Irappa;Pandey, Vinod;Revannasiddaiah, Swaroop
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권18호
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    • pp.7891-7895
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    • 2014
  • Background: Tobacco products continue to be used in large quantities in India despite the mandatory inclusion of pictorial health warnings (PHWs) on all tobacco packaging. The circumstances as to how people could continue the use of tobacco to the point of developing head and neck cancer despite enhanced awareness about the ill effects of tobacco is the main focus of this study. Materials and Methods: This study concerned patients with least 5-years history of tobacco use, having been diagnosed with histopathologically proven malignancies of the hypopharynx, larynx, oropharynx and oral cavity presenting at the Government Medical College-Haldwani, Nainital, India. A total of 183 patients were eligible for inclusion during July 1 2013 - June 30 2014. Of these, 59 patients used smoked tobacco exclusively, 22 patients used smokeless tobacco exclusively, and 102 patients used both forms of tobacco. Among users of smoked forms, 75.2% (n=121) were beedi users, and 24.8% (n=40) were cigarette users. Patients were asked direct questions as to whether they had noticed the presence of PHWs upon tobacco products. The reasons as to why PHWs were not effective in stopping the patients from tobacco use were investigated. Results: Of the 183 patients, 146 reported being aware about the presence of PHWs, and when they were asked reasons as to why they continued tobacco despite being aware of ill-effects, the commonest reason chosen (by 53.4%) was that patients had not regarded themselves as using tobacco heavy enough to cause cancer. Among the 36 patients who reported as being oblivious to the presence of PHWs on tobacco products, 63.9% reported that the products they used never displayed any PHWs, and 36.1% reported never having paid attention to the packaging. The awareness about PHWs was higher among cigarette smokers in comparison to beedi smokers (100% vs 76.1%, p=0.0002). Conclusions: Locally produced and marketed tobacco products such as beedis and oral tobacco often fail to display PHWs. The presence of PHWs without doubt enhances awareness about the carcinogenic risks of tobacco. However, enhanced awareness alone may not be enough, and as elucidated by this study, some persons continue to use tobacco to the point of developing malignancies. The need of the hour is the implementation of legal and economic sanctions discouraging the use of tobacco products.

지속 가능한 블록 공중합체 기반 열가소성 탄성체 (Sustainable Block Copolymer-based Thermoplastic Elastomers)

  • 신지훈;김영운;김건중
    • 공업화학
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    • 제25권2호
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    • pp.121-133
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    • 2014
  • ABA형태의 삼중블록공중합체는 고무상과 유리상의 상대적 성분에 좌우되는 열가소성 탄성체와 강화 플라스틱으로써 유용하다. 이러한 물질은 다른 고분자와 혼합하여 첨가제, 강화제, 상용화제로써 기능성을 줄 수 있다. 상업적으로 유용한 대부분의 블록 공중합체는 석유로부터 유래된다. 지구상의 유한한 화석자원 공급과 석유 사용 및 채굴에 관련된 경제, 환경적 비용을 고려하면 그 대안은 매력적이다. 이러한 흐름에 더하여 미래 지속 가능한 물질의 최종 용도를 위한 설계 및 그 실행이 요구되고 있다. 본 총설에서는 재생 가능한 ABA 형태의 삼중블록 공중합체 합성과 특성을 살펴보고, 특히 공중합체의 경성부분을 위한 높은 유리 전이온도 혹은 녹는점을 지닌 식물 유래 폴리올레핀과 다당류 유래 폴리락타이드와 공중합체의 연성부분을 위한 바이오 기반, 낮은 유리 전이온도, 무결정의 탄화수소계 고분자에 대해 논의하려고 한다. 이를 위해서 다양하게 제어된 고분자 중합법은 강력한 도구임이 증명되고 있다. 이러한 혼성 고분자의 정교한 합성에 관한 연구는 재생가능성, 생분해성, 고성능을 지닌 새로운 탄성체와 강화 플라스틱의 발전을 이끌고 있다.

산욕부와 신생아의 가정간호 사례연구 (A Case Study of Home Health Care for Postpartum Women and their Newborns)

  • 전은미
    • 모자간호학회지
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    • 제4권1호
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    • pp.3-11
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    • 1994
  • Presently there is an increasing demand for home health care services due to changes in the demographic structure as a result of an increasing elderly population, socio-economic improvements, and changes in the family structure, as well as the growing number of people with degenerative diseases. In addition to these reasons, rising medical costs and there a shortage of patient beds space in the hospital, particularly since introduction of national medical insurance. There has been an increasing demand for health care health care services. This study was done to identify the basic data for home health care management. It focused on developing client selection criteria, assessment tools, and recording methods. This was accomplished by the researchers visiting the patients in their homes. The research process included preparation investigation, tool development, training of the project researcher, and visiting the clients in their homes. The research tools are as follows : 1. Record development : a) The selection criteria tool for home health care of postpartum women was a structured tool and consisted of four parts. b) The structured assessment tool consisted of a general items, obstetric history, past medical history, methods of feeding, medications taken before admission, laboratory test results, discharge instructions, discharge medications, family tree, economic status, environmental status, a map, health assessment of postpartum women and their newborns. c) The visit note I consisted of the frequency of visits. Visit note II consisted of the date ; nursing problems ; nursing process including the initial assessment ; nursing goal ; visit plan ; postpartum women and their neonate health status, diagnosis, goal, implementation, evaluation, summary, next plan, for visit revision. d) Problem note consisted of the date, problem numbers, nursing diagnosis, problem appearance date problem resolution date. The research results are as follows : 1. Nursing problems : The nursing problems of the postpartum women and their neonates were evaluated by the number of nursing diagnoses and the change in the pattern of nursing diagnosis related to the number of visits. a) Nursing diagnosis The nursing diagnosis was classified according to physical function, psychosocial function, family system maintained function. b) The changes of nursing diagnosis related to the number of visits. As the type of nursing diagnosis changed related to the number of visits the number of nursing diagnoses decreased. 2. Contents of home health care : The content was categorized according to assessment, direct care, counseling, education, family care, reporting to with the attending doctor. The recommendations based on the research results are as follows : 1. Tool development Replication of this study is needed to test the validity of the assessment tools used. 2. Home visit a) Home health care nurses should be licensed and qualified. A referral form from the attending doctor is needed for legal protection of nurses. b) The first home visit need to be within 24 hours of discharge from the hospital to decrease the anxiety of frightened postpartum women. c) When the changes occur in the newborn's status, home health care nurses should consult a pediatrician. Communication within the home healthcare team is essential and needs to consistent and done smoothly. 3. Home health care A Study is required to develop protocols for education of staff and for operation of all aspects of this program.

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다목적 및 고활용성을 위한 객체지향 모델링 기반의 전자 측량기준점 모니터링 S/W 구현 (A Implementation of Electronic Measurement Datum Point Monitoring S/W based on Object-Oriented Modeling for Multi Purpose and High Availability)

  • 정세훈;심춘보
    • 한국컴퓨터정보학회논문지
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    • 제20권2호
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    • pp.99-112
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    • 2015
  • 표시점의 위치 및 고도를 표시하기 위한 기준점은 각종 측량에 유용하게 활용되는 장점을 가지고 있다. 그러나 기상 변화 및 지각 변화 등의 이유로 손 망실되는 사례가 급증하고 있으며, 무의미하게 방치되는 기준점이 늘어나고 있는 실정이다. 이에 본 논문에서는 기존 측량기준점의 활용성을 극대화할 뿐만 아니라 기준점 주변의 각종 환경 데이터 수집과 주변 지역의 지각변동 감지 기능 등이 포함된 다목적 전자 측량기준점 시스템모니터링 S/W를 설계 및 구현한다. 제안하는 S/W는 S/W의 재사용성 및 확장성을 충분히 지원할 수 있도록 객체지향 모델링 기법을 이용하여 설계하고 구현한다. 본 S/W에서는 전자측량 기준점 관리자를 위한 GUI 뿐만 아니라, 웹 및 모바일 사용자를 위한 GUI를 지원한다. 제공하는 GUI에서는 전자 측량기준점의 손 망실 예방 및 지각 변동을 감지하기 위해 측위된 위치정보 및 각종 센싱 정보를 데이터베이스에 실시간으로 저장하고 분석할 수 있도록 각종 데이터를 위한 그래프 GUI 지원한다. 아울러 QR-Code 및 RFID 인식 기능도 포함되어 있다. 마지막으로, 자이로센서를 이용한 지각 변화 감지 및 GPS 위치 오차율을 확인하기 위해 성능평가 결과를 제시한다.

학생정신건강검진 시범운영사업에 따른 추진방안 (Mental Health Screening in Schools)

  • 김현정;김윤영;이혜숙;현미나;남동현;김상원;안동현
    • 한국학교보건학회지
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    • 제22권1호
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    • pp.33-48
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    • 2009
  • Purpose: The purpose of the study was to find the strategies of mental health screening in school. Based on the literature review, we discuss the importance of screening students in schools for mental health problems. Methods: Data from the 2008 Korean Mental Health Screening in Schools(2008-KMHSS) are used to estimate the outline of this screening. We administered the questionnaire for satisfaction of 2008-KMHSS for students(N=1,280), parents(N=2,672), school nurses(N=75), teachers(N=685), district personnels(N=6), and mental health center staffs(N=37). Also we interviewed a part of them by telephone and e-mail. And we reviewed the tools and methods for screening students for emotional/behavioral problems. Results: Mental health screening in schools is a very important, yet worrisome, agenda that is in its very early stages. From the 2008 Korean Mental Health Screening in Schools, 9,588 students(12.9%) needed more evaluation in the first stage. Of these, 6,910(72.1%) completed the second stage screening. In this sample, 1,975(28.6%) utilized the mental health services in school or community. 38.3% of students and 43.7% of their parents notified the 2008-KMHSS. But only 12.1% of students and 10.9% of their parents dissatisfied with the screening. 9.9% of teachers and 22.7% of school nurses dissatisfied with the screening. Among them the school nurses were mostly dissatisfied, and they complained work burden from KMHSS. Mental health center staffs complained similar issues. The Children's Problem-behavior Screening Questionnaire(CPSQ) and Adolescents' Mental-health & Problem-behavior Screening Questionnaire(AMPQ) were compatible to screen students in schools for mental health problems in first stage. Conclusion: Mental health screening in schools needs careful planning and implementation. For successful mental health screening in schools, several elements need to be considered: careful planning, collaboration, staff training, and integrative mental health programs and services in community or schools.

아시아 공공주택기관의 사업특성 및 재무현황 비교 연구 : 한국, 일본, 싱가포르, 홍콩을 중심으로 (A Comparative Study on the Business and Financial Structure of Public Housing Agencies in Asia: Korea, Japan, Singapore and Hong Kong)

  • 김용태;박신영;조승연
    • 토지주택연구
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    • 제2권4호
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    • pp.529-538
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    • 2011
  • 본 논문은 최근 정책적 이슈로 대두되고 있는 한국토지주택공사(LH)의 부채문제 및 미래 역할과 관련하여 일본 도시재생기구(UR), 싱가포르 주택개발위원회(HDB), 홍콩 주택청(HA) 사례를 살펴봄으로써 시사점을 얻는 것을 목적으로 한다. 이를 위해 국가별 주택정책의 전개과정과 각 기관의 사업내용 및 재무적 상황을 구체적으로 파악하고 비교하였다. 그 결과 주택대량공급 정책의 재검토, 임대주택 수혜계층 범위 확대, 도시재생 활성화, 민간과 지자체와의 협력강화, 정책사업 수행을 위한 LH 자금조달과 사업 손실에 대한 정부지원 강화, 공공주택기관 부채에 대한 재인식 등이 필요하다는 결론을 도출할 수 있었다. 본 연구는 이론적 관점이 아니라 주택 및 도시문제 해결을 위해 우리나라와 유사한 정책집행체계를 운영하고 있는 아시아 국가의 공공주택기관 실태를 통해 정책개선 방향을 제안하였다는 점에서 의의를 가진다.

웨어러블 디바이스를 활용한 ECG 인증 시스템 구현 및 평가 (Implementation and Evaluation of ECG Authentication System Using Wearable Device)

  • 허재욱;진선우;전문석
    • 한국산학기술학회논문지
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    • 제20권10호
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    • pp.1-6
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    • 2019
  • IoT 기반의 스마트홈, 핀테크 등의 모바일 기술이 발달하면서 스마트 디바이스를 이용한 사용자 인증이 일상생활에서 널리 사용되고 있다. 이에 따라 기존의 비밀번호와 같은 지식 기반의 인증 방법에서 스마트 디바이스를 이용한 존재 기반의 생체인증이 새로운 주류가 되었고, 맥파, 지문, 얼굴, 홍채 등 다양한 생체인증 중에 신체적 특성상 위변조 가능성이 낮고 고유한 특징으로 개인 식별성이 높은 ECG(Electrocardiogram, 이하 ECG)를 이용한 생체인증이 헬스케어 및 핀테크와 맞물려 높은 관심을 받고 있다. 본 연구에서는 기존의 고가이면서 부피가 커 휴대가 불가능한 ECG 측정디바이스가 아닌 소형화된 웨어러블 디바이스를 이용하여 손쉽게 사용자의 ECG 파형을 측정해 사용자 인증을 할 수 있는 ECG 인증 시스템을 구현하였다. 구현된 ECG 인증 시스템은 PQRST 고유 값 식별을 통해 ECG 특징점을 판별하고 이를 이용한 제안된 인증 프로토콜로 사용자 인증이 가능하였다. 최종적으로 성인 남성 다수를 통한 측정 평가를 통해 안정적인 정지 상태에서는 1.73%의 비교적 낮은 타인수락률과 4.14%의 본인거부율을 보였고 움직임이 있는 상태에서는 13.72%의 타인수락률과 21.68%의 높은 본인거부율을 보였다. 활동으로 인해 심박수가 상승한 정지 상태에서는 10.48%의 타인수락률과 11.21%의 본인거부율을 보였다.

산업단지 조성사업의 환경영향평가 변경협의 개선방안 연구 (A Study on the Improvement of the Consultations on Amendment in Environmental Impact Assessment of Industrial Complex Development)

  • 주용준;사공희
    • 환경영향평가
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    • 제31권3호
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    • pp.129-140
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    • 2022
  • 개발사업에 대한 환경영향평가는 다양한 이해관계자가 사업특성 및 지역의 환경현황 등을 반영하여 협의를 도출하는 과정으로서 협의내용의 이행은 지역 환경의 지속가능성 확보를 위한 전제조건이다. 사업계획은 사회적·환경적 여건이 변화될 경우 이에 대응하기 위해 변경할 수 있으며, 환경영향평가 협의가 완료된 사업 계획을 변경할 경우에는 협의내용을 변경하는 절차(변경협의)가 제도적으로 마련되어 있다. 개발사업의 변경협의 현황과 주요 변경 내용 등을 조사·분석한 결과 산업단지의 변경협의가 가장 많았으며 이에 따라 환경영향이 가중되고 있다. 변경협의 운용 현황과 사례분석을 통하여 고찰한 결과 산업단지 변경협의의 주요 원인은 입주업종의 형식적 수요예측, 특별법에 따른 과도한 행정절차의 생략 및 간소화 그리고 환경영향평가 협의의 용이성 및 기간 단축을 위한 편법적 변경협의 제도 이용의 세 가지로 요약될 수 있다. 본 연구는 잦은 산업단지 변경협의로 인한 환경성 악화와 환경영향평가 기능 저하를 방지하기 위하여 다음과 같은 방안을 제안한다. (1) 중요한 사항을 변경하는 변경협의의 경우 주민수용성 확보를 위한 주민의견 수렴 절차를 제도적으로 보장하며, (2) 「산단절차 간소화법」의 합리적 개정을 통하여 산업단지의 계획의 적정성 및 입지의 타당성을 제고하고 (3) 산업단지에 대한 객관적 수요관리를 위한 실수요 검증의 평가기준 및 방법을 개발하며, (4) 변경협의에 대한 평가 가이드라인을 마련하는 것이다.