• 제목/요약/키워드: Research on the actual condition

검색결과 943건 처리시간 0.031초

재건축현장 철근탐사 검사장비의 정확도 평가 (Assessment of Accuracy for the Rebar Detecting Device at Reconstruction Site)

  • 박성모;임홍철;임병호
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2006년도 춘계학술논문 발표대회 제6권1호
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    • pp.163-166
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    • 2006
  • The purpose of the research is to assess the accuracy of steel bar detector among other nondestructive testing equipment. The result of previous research shows that the average errors of rebar detector are 14.7% for the cover depth, 2.3% for the rebar spacing, and 11% for the rebar diameter. But this experiment was performed at the laboratory and the mortar was used for covering the steel bars instead of concrete. In situ condition can be different from the laboratory's so the outcomes do not correspond with those of laboratory. This research was performed at the buildings to be reconstructed. Nondestructive and destructive testing can be performed side by side since the building if to be destroyed. Steel bar detector was operated on the beam and the column and concrete cover of those members was removed for the actual measurement of rebar depth, spacing, and diameter finally, presumed value can be directly compared with actual data.

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국내 패션모델 실태 분석 (제1보) (An Analysis of Actual Condition on the Fashion Model in Korea)

  • 김정원;;신상원
    • 한국의류산업학회지
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    • 제3권4호
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    • pp.313-322
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    • 2001
  • This study was designed to investigate actual conditions(the types and the personal physical job related factors) of fashion model in Korea. Survey was done through questionnaire data, 194 fashion models were involved survey. The data were analyzed by using frequency, cluster analysis. The results of this study were as follows : 1) The largest sample were as follows (about personal physical related factors) : unmarried, college graduate and undergraduate, resident in the Seoul, 2-24 yrs female with 175-177 cm, 52-54 kg, B-W-H (33-24-35 inch). 2) The largest sample (about job related factors) were as follows: getting private educational institution, 1-2 yrs job experience, B grade, less than 600,000 won for salaries, 100,000-190,000 won at a stage, 5-6 yrs duration of model work, inexperience in the international fashion stage, take up a foreign language, fashion magazine for fashion source, image and look of individuality for a necessary condition. The motive for job was the concern in the job. Problems with a guarantee were pointed out for the betterment working conditions. 3) The types of fashion model were classified into 4 types : the type of lack of professionalism, the type of show off one's talents, the type of dissatisfaction with working condition, the type of maturity of professionalism.

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Evaluation of Nuclear Plant Cable Aging Through Condition Monitoring

  • Kim, Jong-Seog;Lee, Dong-Ju
    • Nuclear Engineering and Technology
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    • 제36권5호
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    • pp.475-484
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    • 2004
  • Extending the lifetime of a nuclear power plant [(hereafter referred to simply as NPP)] is one of the most important concerns in the global nuclear industry. Cables are one of the long-life items that have not been considered for replacement during the design life of a NPP. To extend the cable life beyond the design life, it is first necessary to prove that the design life is too conservative compared with actual aging. Condition monitoring is useful means of evaluating the aging condition of cable. In order to simulate natural aging in a nuclear power plant. a study on accelerated aging must first be conducted. In this paper, evaluations of mechanical aging degradation for a neoprene cable jacket were performed after accelerated aging under tcontinuous and intermittent heating conditions. Contrary to general expectations, intermittent heating to the neoprene cable jacket showed low aging degradation, 50% break-elongation, and 60% indenter modulus, compared with continuous heating. With a plant maintenance period of 1 month after every 12 or 18 months operation, we can easily deduce that the life time of the cable jacket of neoprene can be extended much longer than extimated through the general EQ test. which adopts continuous accelerated aging for determining cable life. Therefore, a systematic approach that considers the actual environment conditions of the nuclear power plant is required for determining cable life.

새로운 파라메타인 부분방전 변화지수에 의한 발전기 고정자 권선의 절연상태 평가 (The Assessment on the Insulation Condition of Generator Stator Windings by a Novel Parameter PDI(Partial Discharge Index))

  • 황돈하;박도영;김용주;김진봉;주영호
    • 대한전기학회논문지:전기물성ㆍ응용부문C
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    • 제48권11호
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    • pp.735-741
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    • 1999
  • The monitoring and assessment on the insulation condition of generator stator windings have been an important task of utility companies. The interest for the assessment of insulation condition has been increasing due to the need to keep old generating equipment reliable in order to extend the equipment life and to increase the generating capacity. Even though many developments and research activities for the condition assessment of generator insulation have been performed for decades, the assessment criterion in order to consistently predict the actual insulation condition is still in question. In this paper, the correlation between the parameters and the insulation condition is analyzed through the various non-destructive diagnostic tests in order to establish the assessment criterion on insulation deterioration of generator stator windings. By analyzing the correlation, PDI(Partial Discharge Index) as a novel parameter for the assessment criterion on insulation diagnosis of stator winding is proposed and verified.

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조리기능사자격제도 개선방안에 관한 실증적 연구 (A Demonstrative Study on an Improvement Scheme for a Cooking Technician Screening System)

  • 경영일;김소미
    • 한국조리학회지
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    • 제9권3호
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    • pp.114-129
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    • 2003
  • This study aimed at drawing a scheme for more developmental and rational improvement of the screening examination system to cope with the rapidly changing industrial environment positively, enhance the food service industry qualitatively, and reinforce engaged specialty of those engaged in the industry. To set a rational improvement scheme for a cook screening system, the study conducted a prior study on job analysis of those engaged in cooking, a review on relevant laws, and a theoretical research on those problems in the current cook screening examination system. On this basis, it understood the actual condition of the current cook screening system and implemented a demonstrative analysis through a survey to draw a section on a future improvement scheme. The results were analyzed largely from two viewpoints: the general condition of the cook screening system and the future improvement scheme for the system.

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노년남성의 의생활실태 및 남성복업체의 실버마켓 인식에 관한 연구 - 재킷을 중심으로 - (A Study on the Actual Condition Toward the Clothing of Senior Males and the Perception of Male's Formal Wear Companies for Silver Market - Focusing on Jacket -)

  • 김수현;이정란
    • 한국의류산업학회지
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    • 제4권3호
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    • pp.254-260
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    • 2002
  • The purpose of this study is to grasp the actual condition toward the clothing of senior males' and perception of male's formal wear companies for silver market through a survey targeting senior males and clothing companies. The survey was conducted targeting 196 senior males and chief-patterners of 7 companies' 10 brands. The questionnaire distributed to senior males was consisted of 22 items regarding the perception and satisfaction on clothes. And 12 items concerning the perception of senior male clothing brands and the size system was developed for clothing companies. The results of the study are as follows. The study revealed that most senior males perceived that brand clothing for them was necessary. More than half of the respondents were not satisfied with ready-made clothes. And many senior males prefer ready-made clothing when they purchase their clothes. For these reasons, senior males apparel market might be promising. Currently, the perception of male's formal wear companies on the need of brand was high. However, considering that brand launching might be difficult to be realized soon I presume that size spectrum based on body size of senior males is necessary which reflect their physical characteristics and activities.

요가복 사용실태와 전통문양활용 요가복 선호도 조사 (A Research on the Actual Condition of Yogawear and Consumer's Preference of Yogawear)

  • 김지연
    • 한국의류산업학회지
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    • 제10권2호
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    • pp.147-154
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    • 2008
  • This study was carried out to examine the actual using condition of Yogawear and consumer's preference of Yogawear with traditional pattern. Yogawear can be developed as a cultural fashion item, because Yoga is getting universal interest with "Wellbeing Trend". A survey with 34 questionnaires was made by 305 consumers who had ever experienced Yoga from July to August, 2006. The results are as follows: 1. Most of objects were female(94%). Those who are in their twenties accounted for 50%, and those who take Yoga practice time less than 1 year accounted 63%, and those who take Yoga practice time less than 1 hour in a week accounted 46%. 2. Respondents who have Yogawear accounted 32% and they bought it in a online-shopping mall(48%), department store(16%) and discount store(11%). 3. Only 31% of respondents were satisfied of their Yogawear but they weren't satisfied about Yogawear Design, fabric and color. 4. Most preferred Yogawear style was pastel colored 'shirt & Pants' style with long sleeve using cotton fabric. 5. They liked much more modern Yogawear having korean image than completely korean style Yogawear or modern style Yogawear. 6.The benefits of Yogawear were 3 dimension: appearance, easy management, physical properties.

디젤 하이브리드 차량 개조에 따른 배기 배출물 영향 평가 (Modification of Hybrid Diesel Vehicle and Its Effect on the Exhaust Emissions)

  • 권순호;임종순;이현우;이정훈
    • 한국자동차공학회논문집
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    • 제23권5호
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    • pp.537-544
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    • 2015
  • The effects of the modification of hybrid vehicle components on diesel exhaust emissions were investigated in this study. We examined the changes in exhaust emissions and the fuel consumption (FC) caused by the modification of generator (alternator) and motors. Exhaust emissions such as black carbon (BC), HC, $NO_X$ and $CO_2$ were measured not only in idle state but also on an actual urban road as well as on a chassis dynamometer. BC, $NO_X$ and HC emissions increased by 95%, 27% and 34% respectively when the generator charged the battery in the idle condition. BC and FC decreased in hybrid mode on the actual urban road partly because the motors were used to assist the diesel engine. In addition, the decreases in exhaust emissions and FC were also evident in the hybrid mode when the vehicle was tested on the chassis dynamometer.

사회복지사 처우개선 관련 조례 및 이행여부 연구 부산광역시 및 부산 16개 구·군을 중심으로 (Analysis on the Ordinance and Implementation of Labor Conditions Improvement of Social Worker:Focused on Busan Metropolitan City and its 16 Subregions)

  • 권신정;조선영
    • 한국콘텐츠학회논문지
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    • 제20권5호
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    • pp.204-211
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    • 2020
  • 본 연구에서는 부산광역시 및 부산 16개 구·군의 「사회복지사 등의 처우개선 및 지위향상을 위한 조례」를 비교분석하고 실제 이행여부를 확인함으로써 조례안의 개선점을 도출하고 실효성 확보를 위한 방안을 제안하고자 하였다. 이용재외(2014)에서 활용한 조례분석모 형에 조항이행여부를 추가한 분석모형을 사용하여 17개 조례를 분석하였다. 분석결과에 따른 개선방안은 다음과 같다. 첫째, 지방자치단체장의 책무조항이 반드시 명시되어야 한다. 둘째, 실태조사는 명확한 주기와 구체적인 내용이 담긴 독립적인 조항으로 명시되어야 한다. 셋째, 지원계획은 실태조사와 함께 모든 구·군의 조례에 포함되어야 한다. 넷째, 처우개선위원회와 관련된 조항이 부존재한 구·군이 가장 많았으므로 사회복지사의 입장과 권리를 실질적으로 대변할 수 있는 위원회 관련 조항을 반드시 추가해야 한다. 다음은 조례의 실효성 확보를 위한 방안으로 첫째, 조례가 규범력과 강제성을 갖기 위하여 의무사항에 대한 구체적인 명시와 이행하지 않았을 시 따르는 벌칙이 마련되어야 한다. 둘째, 조례의 내용에 사회복지사의 의사가 잘 반영될 수 있도록 해야 한다. 셋째, 조례입법평가를 통하여 당초 입안 목적에 맞게 잘 이행되고 있는지에 대한 체계적인 조사와 평가 모니터링이 필요하다.

수분수지 분석을 통한 호남지역의 잠재적 물 사정 고찰 (A study on potential water condition of Honam region according to water budget analysis)

  • 박의준;이정록
    • 한국지역지리학회지
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    • 제7권3호
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    • pp.44-58
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    • 2001
  • 본 연구에서는 수분수지를 통하여 호남의 8개 지역을 대상으로 잠재적 물 사정을 고찰하였다. 본 연구의 결과는 다음과 같다. 첫째, 연구지역의 강수량과 토양의 함수율, 잠재증발산량, 저장량, 실재증발산량, 수분부족과 수분잉여량를 산출하고 이를 통하여 수분수지를 분석한 결과 잠재적인 물 사정을 직접적으로 지시하는 수분잉여량은 여수, 순천, 장흥, 남원, 담양, 흑산도, 광주, 목포의 순으로 나타나 섬 지역인 흑산도와 광주, 목포가 잠재적인 물 사정이 가장 불량한 지역으로 판단되었다. 둘째, 수분잉여량과 강수량, 실재증발산량의 관계를 분석한 결과, 수분잉여량이 많은 지역은 대체로 강수량이 많고 실재증발산량이 적은 지역이라는 사실을 알 수 있었다. 셋째, 본 연구에서 고찰한 잠재적 물 사정은 호남지역의 실질적인 물 사정과도 몇 가지 사안에서 일맥 상통하고 있었다. 즉, 전통적으로 호남지역에서 가장 물 사정이 좋지 않아 대규모 댐과 저수지 건설을 시행한 광주와 목포시의 잠재적 물 사정이 나쁘게 분석된 것은 수분수지를 통해 잠재적 물 사정을 고찰한 본 연구의 유용성을 증명하는 것이다. 그러나 본 연구는 도시화에 따른 토지이용 및 경관변화와 연구지역의 물 사용량 및 저수량을 수분수지에 직접적으로 적용하지 못한 한계를 가지고 있으며 이는 차후 연구에서 수행되어야 할 것으로 사료된다.

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