• Title/Summary/Keyword: 적정조도

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A Study on the Illuminance Measurement and Improvement of Public Libraries in Daegu City (공공도서관 조도분석 및 개선방안 연구 - 대구지역을 중심으로 -)

  • Yoon, Hee-Yoon
    • Journal of Korean Library and Information Science Society
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    • v.48 no.4
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    • pp.1-20
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    • 2017
  • The most important identity of public library is local public goods that guarantee access and use of knowledge and information of local residents. To justify this, the library must create an optimal lighting environment. Particularly, since the perception rate of information through vision is over 80%, it is necessary to secure proper illuminance. This study measured the illuminance level of public libraries in Daegu. Based on the results, this study suggested a desirable illuminance level for each space and proposed plans to secure and maintain proper illuminance(prospective revision of the KS A 3011, setting the illuminance range for each space of the local government, replacing the existing lighting fixtures with LED, enhance supervision of lighting management, establishment of basic principles for proper lighting and detailed plans for each space of the library, investigation and reflection on users' complaints and satisfaction, etc.)

신기술.신이론 - 양계사의 암모니아 방출 감소

  • Go, Tae-Song
    • Monthly Korean Chicken
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    • v.18 no.2
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    • pp.122-127
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    • 2012
  • 계사내 공기중의 암모니아 농도 감소 목적으로 식물 기원 소화율 촉진제(phytogenic digestibility enhancer) 사용이 가능하다. 이 소화율 촉진제는 사료 설계 명세서 내 특정 성분(조단백질)을 감소시키고 영양소 이용성을 개선하여 동물생산성을 향상시키기 때문이다. 조단백질 함량이 낮은 사료 급여는 가금에게 적정 요구량 이상 흡수된 단백질(excess protein)의 뇨산(尿酸 : uric acid) 전환에 에너지를 소비하지 않아서 열역학적 이점(熱力學的 利點 : energetic advantage)이 있고, 이 에너지는 유익한 성장에 사용이 가능하도록 존재한다. 더욱이 동물 사료 중 조 단백질 1%는 약 3% 더 많은 물의 섭치가 필요하고, 그 중 80%는 다시 배설되므로 단백질 함량 적정화 사료들(protein optimized diets)은 음수 요구량을 감소시킨다. 이러한 단백질 적정화 사료는 동물 사육업자들에게 관심의 대상으로 명확한 경제적 이득이 발생한다.

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Respiration Characteristics Modeling of fresh mushroom lander CA(Controlled Atmosphere) (환경기체조성하에서 생버섯의 호흡특성 모델링)

  • Lee, H. D.;Yun, H. S.;Lee, W. O.;Chung, H.;Cho, K. H.
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 2002.02a
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    • pp.343-348
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    • 2002
  • 생버섯의 환경기체조절저장을 위한 적정 기체조성을 예측하기 위하여 팽이버섯과 느타리 버섯을 대상으로 호흡특성치를 측정 및 모델링한 결과 두 버섯의 호흡속도는 환경기체조성에 영향을 받는 것으로 나타났다. 버섯의 산소소비속도와 이산화탄소발생속도를 반응표면분석한 결과 느타리버섯의 이산화탄소발생속도를 제외하고는 $R^2$=0.9이상의 높은 상관관계를 나타내었다. 반응표면 분석결과를 이용하여 두 버섯의 적정 기체조성은 팽이버섯의 경우 1~2.5% $O_2$와 10.5-11.5% $CO_2$, 느타리 버섯의 경우에는 2.5~4.5% $O_2$와 11.5~13%$CO_2$가 적정 기체조성 것으로 예측되었으며 일반적인 생버섯의 저장기체조건에 포함되는 농도였다. 따라서 예측된 조건에서 생버섯의 환경기체조절 저장이 가능 할 것으로 판단되었다.

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A Study on the Estimation Standard of Optimal Construction Duration for Reinforced Concrete Apartment House (철근콘크리트조 공동주택 적정공기 산정기준에 관한 연구)

  • Chun Young-Gee;Lee Gye-Uk;Kim Yang-Taek;Hyun Chang-Tae
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.531-534
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    • 2001
  • At the beginning of construction, the estimation for the construction duration is very important to effectively control and use labors, builder's equipment, permanent and temporary materials, supplies and utilities, and money. In spite of the importance of the estimation for the construction duration, there is no estimation standard of optimal construction duration in korea. The purpose of this study is to suggest the estimation standard of optimal construction duration that is reasonable and systematical through developing the method for estimating, the construction duration. it is expected to be helpful for estimating, planning and scheduling. The analysis is executed the existing estimation standards and consulting the results of the interviews with the on-site engineers and the concrete compressive stress tests.

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Effects of Starch Concentrations and Soaking Periods of Acorn on Sensory Characteristics of Acorn Mooks(Starch Gels) (조전분 농도 및 침지 시일이 도토리묵의 관능적 특성에 미치는 영향)

  • Park, Sank-Ok;Kim, Kwang-Ok
    • Korean Journal of Food Science and Technology
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    • v.21 no.1
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    • pp.9-12
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    • 1989
  • Sensory characteristics of acorn gels were evaluated as affected by acorn starch concentrations(7, 8, 9, 10 and 11%) and by soaking periods(4, 8 and 16 days) of acorn and acorn flour. The characteristics evaluated were color, clarity, firmness, cohesiveness, flavor and astringency. Panelists indicated in the scoring test that all the characteristics were pronounced as the starch concentration increased, except clarity, The result of ranking test on gels made with acorn starch soaked for 4, 8 or 16 days indicated that color, firmness, cohesiveness, flavor and astringency decreased, as soaking period increased. However, the soaking periods did not affect clarity of acorn gels.

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Response of Rudder Fish to the White Lights (백색광에 대한 벵에돔의 반응)

  • 양용림
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.25 no.2
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    • pp.37-43
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    • 1989
  • The purpose of this study is to find the light intensity which induced maximum gathering rate and to observe the variation of the gathering rate both in daytime and at night by suing Rudder fish, Girella punctata(Gray). An experimental tank(360L*50W*55H cm) was set up in a dark room. An illumination system was attached to the end of one side of the tank to control horizontal light intensity. Eight artificial light sources were prepared by combination of three light bulbs(10W, 60W, 100W) and eight filters. During the experiment water depth was maintained 50cm level in the tank. The tank was marked into six longitudinal sections each being 60cm long to observe the distribution of fish. The fish were acclimatized in dark condition for 50 minutes prior to the main experiment. Upon turning on the light, the number of fish in each section was counted 60 times every 30 seconds, and the gathering rate was obtained from the average number of fish in each section. The light intensity inducing maximum gathering rate was 2.98 lux(1.90-4.40 lux) at daytime and 298.56 lux(188.44-444.96 lux) at night. The variation of the gathering rate of fish in illumination time was great and irregularly fluctuated, but did not show any definite pattern. It was somewhat difference between daytime and night.

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A Study on Solution of Impeachment Evidence in Criminal Proceedings for Employ by the Convergence (소송절차상 탄핵증거사용 문제에 있어서 융합적 해결에 대한 소고)

  • Lee, Chan-Yeub
    • Journal of the Korea Convergence Society
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    • v.6 no.5
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    • pp.207-217
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    • 2015
  • A Study on Problem of Impeachment Evidence in Criminal Proceedings for Employ by the Convergence Meaning of impeachment evidence in criminal proceedings is liking the spread of the branches moment. The first, there is to set limits of impeachment evidence. The amicable solution is to accept moving flexibly. In a concrete way must to make away with a constituent element unlawfulness. The second, problem a return to probative force exist. This problem agree in principle to resolve an issue for the testimony of an eyewitness. The third, how to admit that institution of criminal investigation after the testimony of an eyewitness exist. This attendant conditions are to eliminate illegality for the authenticity in he testimony of an eyewitness and for the observe due process. Therefore, we must observe due process without illegality to solve the problem for the convergence.