• 제목/요약/키워드: Burdens

검색결과 492건 처리시간 0.028초

전기용량 부담을 이용한 전압변성기 비교 측정 시스템의 비오차 및 위상각 오차의 직선성 평가기술 (Evaluation Technique of Linearity of Ratio Error and Phase Angle Error of Voltage Transformer Comparison Measurement System Using Capacitor Burden)

  • 정재갑;김한준;권성원;김명수
    • 대한전기학회논문지:전기물성ㆍ응용부문C
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    • 제54권6호
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    • pp.274-278
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    • 2005
  • Voltage transformer(VT) comparison measurement system is usually used for measurements of ratio error and phase angle error of VT made in industry. Both ratio error and phase angle error in VT are critically influenced by values of burden of VT used. External burden effects on both ratio error and phase angle error in VT are theoretically calculated. From the theoretical calculation, a method of evaluation for linearity of ratio error and phase angle error in VT measurement system have been developed using the standard capacitive burdens, with negligible dissipation factor less than 10$^{-4}$. These burden consists of five standard capacitors, with nominal capacitance of 1.1 $\mu$F, 1 $\mu$F, 0.1 $\mu$F, 0.01 $\mu$F, 0.001 $\mu$F. The developed method has been applied in VT measurement system of industry, showing in good consistency and linearity within 0.001 $\%$ between theoretical and measured values.

피부미용사의 손 부위 통증에 관한 연구 (A Study on Pain Characteristics in Parts of the Hand among Estheticians)

  • 김정화;피영규;이사우
    • 한국산업보건학회지
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    • 제25권2호
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    • pp.220-228
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    • 2015
  • Objectives: The purpose of this study was to investigate estheticians' self-reported pain symptoms and pain levels according to the parts of the hand. Methods: Data were collected through a questionnaire survey among 116 estheticians from 31 skin care centers and spas. Information about general characteristics, job characteristics and work characteristics were based on data from the self-administered questionnaire. To determine the self-reported pain symptoms and pain levels according to the parts of the hand, a Cornell Musculoskeletal Discomfort Questionnaire was used. Results: The subjects had the greatest self-reported pain symptoms in the thumb(Right: 53.4%, Left: 46.6%) and felt the highest level of pain in the wrist(Right: 4.87 points, Left: 4.71 points). Physical burdens and age had statistically significant effects on the pain level in the right hand, while physical burdens and the manager rather than the director had statistically significant effects on the pain level in the left hand. Conclusions: Since the thumb and wrist have the greatest subjective pain symptoms in the hand, the use of proper tools is recommended in order to reduce the usage of the thumbs during massage, as is regular stretching to protect the wrists.

Adaptive Cloud Offloading of Augmented Reality Applications on Smart Devices for Minimum Energy Consumption

  • Chung, Jong-Moon;Park, Yong-Suk;Park, Jong-Hong;Cho, HyoungJun
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제9권8호
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    • pp.3090-3102
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    • 2015
  • The accuracy of an augmented reality (AR) application is highly dependent on the resolution of the object's image and the device's computational processing capability. Naturally, a mobile smart device equipped with a high-resolution camera becomes the best platform for portable AR services. AR applications require significant energy consumption and very fast response time, which are big burdens to the smart device. However, there are very few ways to overcome these burdens. Computation offloading via mobile cloud computing has the potential to provide energy savings and enhance the performance of applications executed on smart devices. Therefore, in this paper, adaptive mobile computation offloading of mobile AR applications is considered in order to determine optimal offloading points that satisfy the required quality of experience (QoE) while consuming minimum energy of the smart device. AR feature extraction based on SURF algorithm is partitioned into sub-stages in order to determine the optimal AR cloud computational offloading point based on conditions of the smart device, wireless and wired networks, and AR service cloud servers. Tradeoffs in energy savings and processing time are explored also taking network congestion and server load conditions into account.

전류변성기 비교 측정 장치의 비오차 및 위상각 오차의 직선성 현장 평가기술 (On-Site Evaluation Technique of Linearity for Ratio Error and Phase Angle Error of Current Transformer Comparison Measurement Equipment)

  • 정재갑;권성원;이상화;강전홍;김명수
    • 대한전기학회논문지:전기물성ㆍ응용부문C
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    • 제55권6호
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    • pp.313-316
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    • 2006
  • A method for evaluation of the linearity of both the ratio error and phase angle error in the current transformer(CT) comparison measurement equipment has been developed by employing the standard resistors with negligible AC-DC resistance difference less than $10^{-5}$. The non-reactive standard resistors for the linearity check of the system are used as the external burden connected with the secondary of CT under test. These burdens consist of nine standard resistors, with the nominal resistance of $0.01{\Omega},\;0.1{\Omega},\;0.2{\Omega},\;0.4{\Omega},\;0.6{\Omega},\;1{\Omega},\;2{\Omega},\;4{\Omega}$, and $10{\Omega}$. For linearity check, the developed method has been applied in the CT comparison measurement equipment belonging to the industry.

호스피스 자원봉사자의 부담감에 관한 연구 (A Study on the Burden of Hospice Volunteers)

  • 최의순;한지은
    • Journal of Hospice and Palliative Care
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    • 제8권2호
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    • pp.173-182
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    • 2005
  • 목적: 본 연구는 호스피스 자원봉사자들의 부담감 정도와 관련요인들을 파악함으로서 바람직한 봉사활동을 할 수 있도록 돕는 중재프로그램 마련에 기초 자료를 제공하는데 그 목적이 있다. 방법: 연구대상은 가톨릭대학교 부속 8개 병원에서 호스피스 자원봉사 활동을 하고 있는 봉사자 243명이었다. 연구도구는 설문지로서 부담감 측정도구(25문항)와 삶의 질 측정도구(47문항)를 사용하였고 자료처리는 SAS program을 이용하여 t-test, ANOVA, Duncan test, Pearson's correlation coefficient로 분석하였다. 결과: 1. 조사 대상자 중 50대 연령군이 44.0%, 여성이 85.6%, 고졸 학력이 51.9%, 기혼상태 86.8%, 중정도의 생활정도 85.6%, 무직인 경우 45.3%, 삶의 질이 보통인 경우 78.6%였다 2. 조사대상자의 주당 봉사 시간은 평균 5.0시간, 자원봉사활동기간은 평균 41.7개월 봉사 대상자 임종경험은 평균 13.9회, 자원봉사자 교육을 받은 횟수는 평균 12.8회이었다. 11.5%에서 가족 중 호스피스를 받은 적이 있었으며 봉사활동 시작 동기는 이웃에 봉사하기 위하여 35.0%였다. 조사대상자의 72.9%에서 자원봉사활동에 대해 만족하고 있었으며 90.4%에서 호스피스 봉사활동에 대한 가족들의 반응이 긍정적이라고 하였다. 47%에서 본인이 자원봉사로서의 자질이 적절하다고 답하였고 94.3%에서 자원봉사자 교육이 필요하다고 답하였으며 32.9%에서 호스피스 봉사활동 중 영성적 돌봄이 가장 어렵다고 답하였다. 3. 조사 대상자의 전체 부담감 평균 평점은 $53.3{\pm}10.4$이었다. 일반적 특성에 따른 부담감 정도는 각 특성별로 유의한 차이는 없었다. 4. 호스피스 자원봉사관련 특성에 따른 부담감 정도는 호스피스 봉사활동에 대한 가족들의 반응이 긍정적인 경우 유의하게 낮았으며, 봉사활동 유형에 따른 부담감 정도는 가족 돌봄, 신체적 돌봄에서 유의하게 높았다. 5. 각 영역별 부담감 정도는 환자 돌봄에 대한 부담감, 봉사 후 자아성취감에 대한 부담감, 봉사 활동에 대한 부담감의 순으로 높았다. 각 항목별 부담감 정도는 "환자나 보호자가 죽음을 어떻게 받아들일지 염려된다", "환자에게 최선을 다하지 못할 때 죄책감을 느낀다", "환자를 돌볼 때 긴장된다"의 순으로 높았다. 6. 부담감과 삶의 질과는 역상관관계가 있었다. 결론: 이상의 결과를 토대로 호스피스 자원봉사자들의 부담감을 감소시키고 효율적인 자원봉사를 할 수 있도록 돕기 위해서는 교육정도와 가족들의 지지정도 가장 어렵게 느끼는 봉사활동을 고려하고 특히 환자들의 가족 돌봄과 환자의 신체적인 돌봄과 관련한 교육을 강화하며 삶의 질을 높이기 위한 방안이 모색되어야 할 것이다.

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한국 의료보험의 통합일원화 : 성패의 갈림길 (Korean Experiment for the Unification of Multiple Health Insurers : A Road to Success or Failure)

  • 김병익
    • 보건행정학회지
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    • 제10권3호
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    • pp.108-128
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    • 2000
  • The Korean government has implemented the policy for merging 141 health insurers into Korean Unified Health Insurer (KUHI) in July of 2000. The unification of multiple insurers will definitely effect the stability of financial management, equity of premium burdens and efficiency of administrative management. However, it is difficult to predict what forms the far-reaching effects of the unification would take. Thus, pursuing the unification may be express as a huge policy experiment. In order to lead the unification, which lies on a crossroad between success and failure, to the road of success, we need to infer the problems and obstacles predicted in the step-wise processes of merging organizations, finances and the systems of computing premium, and come up with the effective means to maintain the stability of financial management, to improve the equity of premium burdens and to increase the efficiency of administrative management. Thus, I first described the changes of the Korean medical insurance system, and analyzed the performances of self-employed medical insurance 1 year after the integration of societies in October of 1998. At the base of examining the stability of financial management, equity of premium burdens and efficiency of administrative management, I predicted the problems and obstacles that could occur after the unification of the multiple medical insurers, and proposed a few ways of leading the unification of the multiple medical insurers in Korea to success. The most worried factor is that insurance finance would become unstable since the expansion of premium revenues is not easy because raising the premium for all Koreans is to be difficult. In addition, the unification of insurance finance could weaken the insurer's efforts for declaring real incomes of the self-employed and increasing the collection rate of premiums from them. This weakening would be the decisive factor of lowering the equity of premium contributions between the self-employed and employees. And bureaucratization and rigidity that are unavoidable in a gigantic unified organization could lower the efficiency of administrative management. Furthermore, by having 3 labor unions in the unified organization, it is possible to experience frequent difficulties and discords among the unions and between the unions and organization. Thus, when smooth pursuing of the unification of multiple insurers gets difficult, the social expenses derived from the failure would eventually end up on all Koreans. The unification is to be performed after coming up with the ways to eradicate these worries, so that the unification of multiple insurers would step onto the road of success.

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장애아동 가족을 위한 돌봄지원 개념화: 개념도 연구법을 활용하여 (Conceptualizing Caregiving Supports for Families Who Have Children with Disabilities: A Concept Mapping Application)

  • 김유리;최복천
    • 한국콘텐츠학회논문지
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    • 제17권9호
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    • pp.498-509
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    • 2017
  • 장애아동 부모 및 가족의 돌봄부담을 경감시키기 위한 돌봄지원이 제공되고 있지만 몇몇 한계점이 지적되면서 최근 들어 전반적인 개선이 요구되고 있다. 이에 본 연구는 장애아동 부모 및 서비스제공자의 관점에서 장애아동 가족의 돌봄부담 경감을 위해 필요한 돌봄지원의 내용 및 범위를 파악하고 개념화하는 것을 목적으로 하였다. 이를 위해 본 연구에서는 서비스 욕구조사 및 프로그램 개발에 유용한 개념도 연구법이 사용되었다. 개념도 연구법에 따라 먼저 장애아동 부모 두 집단과 사회복지사 한 집단을 대상으로 초점집단면담을 실행하여 총 31개의 돌봄지원 내용요소(진술문)를 도출하였으며, 연구 참여자들은 이 진술문들을 개념적 유사성에 따라 분류하고 상대적 필요도에 따라 평정하였다. 다음으로 분류자료들은 다차원 척도법과 군집 분석을 통해 분석되었으며, 평정자료들에 대해서는 평균과 표준편차를 산출하였다. 분석결과, 장애아동 돌봄지원 내용요소 31개는 4개의 범주로 개념화되었으며, 모든 범주의 필요도 점수는 높게 나타났다: 일상적 돌봄, 활동중심 돌봄, 부모 돌봄역량 강화, 가족관계 강화. 본 연구결과는 돌봄지원제도 개선 및 지원정책 개발에 유용한 기초자료를 제공하였다는 점에서 그 의의가 있다.

미혼남녀의 정서적·당위적·기능적 결혼의향에 영향을 미치는 변인 연구 (The study about variables influencing emotional, normative, and functional marriage intentions of unmarried men and women)

  • 박혜민;전귀연
    • 한국가족관계학회지
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    • 제22권4호
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    • pp.53-80
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    • 2018
  • Objectives: The purpose of this study was to investigate individual awareness variables influencing emotional, normative, and functional marriage intentions of unmarried men and women. Independent variables were values of offspring, perceptions to unmarried life, attitudes toward multiple role planning, perceptions and availabilities of marriage-related policies, views on the marriageable age, psychological burdens of pressure to marriage by significant people, and views on parents' support for marriage fund. Method: 553 unmarried men and women in Daegu, Korea were surveyed, and the data were analyzed using descriptive statistics, factor analysis, multivariate analysis of variance(MANOVA), multiple regression analysis, and hierarchical regression analysis with SPSS 22.0. Results: First, this study was more exploratory and in-depth approach to marriage intentions than precedent studies. The sub factors of marriage intentions were emotional, normative, and functional marriage ones. Second, emotional marriage intention showed significant differences depending on gender, dating, views on the marriageable age, and degree of acceptance of parents' support for marriage fund. Among the individual awareness variables, values of offspring, perceptions to unmarried life, attitudes toward multiple role planning, and psychological burdens of pressure to marriage personally or by friends influenced emotional marriage intention. Third, normative marriage intention showed significant differences depending on gender, religion, occupational status, employment condition, dating, views on the marriageable age, and degree of acceptance of parents' support for marriage fund. Among the individual awareness variables, values of offspring, perception to unmarried life, attitudes toward multiple role planning, view on the marriageable age, availabilities of marriage-related information offering policies, and psychological burdens of pressure to marriage by mother influenced normative marriage intention. Fourth, functional marriage intention showed significant differences depending on gender, job, parents' support for marriage fund, views on the marriageable age, and degree of acceptance of parents' support for marriage fund. Among the individual awareness variables, functional marriage intention was influenced by values of offspring, perception about unmarried life, attitudes toward multiple role planning, and degree of acceptance of parents' support for marriage fund. Finally, the hierarchical regression analysis showed that individual awareness variables influenced on marriage intentions. Especially, values of offspring, perceptions to unmarried, and attitudes toward multiple role planning influenced on emotional, normative, and functional marriage intentions in common. Conclusions: The findings from these analyses suggest that the selective process based on the individual awareness has become very significant to having marriage intentions. Therefore, this study will contribute as the basic data on national marriage-related policies. Furthermore, this study will be able to use to think about the marriage intention as a task to be preceded by the national policy in order to prepare for Korea 's low fertility and aging phenomenon.

환경산업연관분석을 활용한 탄소국경조정 메커니즘 도입에 따른 국내 산업계 영향 분석과 대응전략 (Assessing the Impacts of EU's Carbon Border Adjustment Mechanisms and Its Policy Implications: An Environmentally Extended Input-Output Analysis)

  • 여영준;조해인;정훈
    • 자원ㆍ환경경제연구
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    • 제31권3호
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    • pp.419-449
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    • 2022
  • 본 연구에서는, 환경산업연관표 분석모형을 활용해, EU 탄소국경조정이 전면 도입될 경우의 국내 산업별 탄소국경조정 부담액 규모를 산정하고 국내 저탄소 정책 시행에 따른 산업별 부담액 변화를 비교 분석함으로써 기후변화 리스크에 대응한 중장기전략 수립에 시사점을 제시하고자 하였다. 분석 결과 EU 탄소국경조정 전면도입 정책충격에 따른 국내 산업 총부담액은 2030년 기준 약 8조 2,456억 원 규모로 예측되었다. 업종별 영향을 살펴보면 석유화학, 석유정제, 운송장비, 철강, 자동차, 전기/전자/정밀 산업으로 등 6대 주요 산업군에서 총탄소국경조정 총부담액의 84.3%를 차지하는 것으로 전망되었다. 그리고 저탄소 정책 시행에 따른 기술발전 및 에너지 전환을 가정한 복수의 정책 시나리오에서는 탄소국경조정 총부담액이 약 11.7%~15.0% 감소할 것으로 전망되었다. 본 연구의 주요 분석 결과는 탄소국경조정의 전면도입 확대에 따른 대응전략 수립을 특정 분야에 한정해 이행하는 것이 아니라, 종합적 접근 하에서 이뤄내 국가 경제 전반에 끼치는 부정적 영향을 최소화하고 새로운 성장동력을 발굴하는 기회의 창으로 활용할 필요가 있음을 시사하고 있다.

In Vivo Counting of $^{241}$ Am and Uranium in Human Lungs

  • Lee, Tae-Young;Kim, Jong-Soo;Chang, Si-Young
    • 한국원자력학회:학술대회논문집
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    • 한국원자력학회 1996년도 춘계학술발표회논문집(4)
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    • pp.17-22
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    • 1996
  • Individual internal monitoring program by in-vivo measurement technique at the Korea Atomic Energy Research Institute includes the capability for the assessment of uranium and americium lung burdens. This capability is an important part of the health and safety program. This article addresses the lung burden assessment portion of our in vivo measurement capabilities.

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