• Annual Conference of KIPS
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• 2009.04a
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• pp.823-826
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• 2009

본 논문에서는 RFID의 특성인 비 접촉형 인식과 높은 인식률을 통하여 사용자로 하여금 자동화된 식자재 관리를 돕는 스마트 냉장고 시스템을 설계하여 구현하였다. 이 시스템은 냉장고 사용자로 하여금 냉장고속 식품에 관한 정보를 냉장고를 열지 않아도 한눈에 볼 수 있으며, 이를 통한 식자재 관리에 자동화를 통한 편의성을 제공 하는 동시에 RFID를 이용한 식품이 판매가 되어 소비자에게 가기까지 유통과정의 투명성을 제공하는 것을 목적으로 한다. 또한 이러한 목적을 바탕으로 구성되어야 할 스마트 냉장고 시스템에 관한 요구사항을 분석하고 구현하여 멀지 않은 미래에 RFID를 활용한 가정 내의 냉장고 사용 프로세스를 예측해 보고자 한다. 이 시스템을 통하여 물류산업의 효과적 유통은 물론 냉장고 사용자의 식자재에 관한 비용을 절감시킬 수 있을 것이라 예상한다.

• Journal of Climate Change Research
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• v.9 no.4
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• pp.423-433
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• 2018

Particulate matter air pollution is a serious problem affecting human health and visibility. The variations in $PM_{10}$ concentrations are influenced by not only local emission sources, but also atmospheric circulation conditions. In this study, we investigate the temporal features of $PM_{10}$ concentrations in South Korea and the atmospheric circulation patterns associated with high concentration episodes of $PM_{10}$ during winter (December-January-February) 2001-2016. Based on those analyses, a Korea Particulate matter Index (KPI) is developed to represent the large-scale atmospheric pattern associated with high concentration episodes of $PM_{10}$. The atmospheric patterns are characterized by persistent high-pressure anomalies, weakened lower-level north-westerly anomalies, and northward shift of the upper-level meridional wind anomalies near the Korean Peninsula. To evaluate the change in occurrence of high concentration episodes of $PM_{10}$ under a possible future warmer climate, we apply KPI analysis to CMIP5 climate simulations. Here, historical and two representative concentration pathway (RCP) scenarios (RCP 4.5 and RCP 8.5) are used. It is found that the occurrence of atmospheric conditions favorable for high $PM_{10}$ concentration episodes tends to increase over South Korea in response to climate change. This suggests that large-scale atmospheric circulation changes under future warmer climate can contribute to increasing high $PM_{10}$ concentration episodes in South Korea.

• 프린팅코리아
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• s.27
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• pp.164-167
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• 2004

한국 HP의 HP인디고 디지털 인쇄기 총판 계약자인 로지트코퍼레이션이 9월 22일 서울시 강남구 압구정동 부근에 HP인디고 디지털 인쇄기 데모센터를 개장, 고객과의 접촉을 확대하고 디지털 인쇄기의 장점을 적극 부각시킴으로써 국내 인쇄 시장을 공략한다는 계획이다.

• 프린팅코리아
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• v.14 no.7
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• pp.118-119
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• 2015

국립민속박물관(관장 천진기)은 명주사 고판화박물관(관장 선학)과 함께 6월 3일부터 7월 20일까지 기획전시실II에서 특별전 '인쇄문화의 꽃, 고판화'를 개최한다.

• The Monthly Diabetes
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• s.188
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• pp.14-17
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• 2005

' 고혈압을 조절 및 치료를 받게되면 합병증이 발생되지 않는가? 하는 질문에 대한 현재까지의 많은 연구에 의하면, 고혈압을 적절히 치료하면 모든 형태의 합병증이 예방될 수 있음이 증명되었고, 일단 합병증이 발생된 환자라도 치료를 적극적으로 하면 재발하거나 또 다른 합병증으로 진행되는 것을 막을 수 있다고 알려져 있다.

• 건강소식
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• v.37 no.4
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• pp.30-31
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• 2013

고혈압은 기본적으로 혈관병이다. 이 때문에 혈관이 있는 곳이면 어디든지 고혈압의 영향을 받을 수 있다. 집중 타격을 받는 곳이 심장에 영향을 공급하는 관상동맥, 뇌동맥, 신장으로 혈관과 관계된 눈도 예외가 아니다.

• Computational Structural Engineering
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• v.4 no.1
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• pp.4-10
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• 1991

본 고에서는 FEM 프로그램 사용시 주의하여야 할 사항과 흔히 범하기 쉬운 오류에 대하여 기술하고자 한다. 본 고에서는 정적선탄성해석에 대한 것만을 다루었으며, 본 고의 내용은 참고문헌 중 C. Meyer가 편집한 "Finite Element Idealization"에서 인용한 것이다.

• Magazine of the Korea Concrete Institute
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• v.7 no.2
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• pp.155-164
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• 1995

This study was performed to get high strength of the precase concrete adopting a steam curing by using a gypsum-admixture for the high strength concrete. The superplasticizer was used to compensate low slump of base concrete keeping its slump up about $6{\pm}1cm$. To examine the property for strength revelation of concrete using admixtures for a high strength concrete, steam and standard curing were compared each other. Test results were shown that admixtures for high strength concrete were more effective in steam curing than standard curing. On the condition that the unit cement content is about $530{\sim}600kg/m^3$, the compressive strength of concrete replacing by 10% of the admixture was obtained over $65Okgf/cm^2$, which was increased as 1.3 times as that for the nonreplacement. When the admixture was replaced to 15-30%, the compressive strengh was obtained over $700kgf/cm^2$ which was increased as 1.4 - 1.5 times. Therefore, the admixture for high strength concrete, being effective in steam curing, was more efficient to get a high strength concrete using only steam curing instead of an autoclave curing for the secondary products of cement.

• Journal of the Korea Concrete Institute
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• v.23 no.5
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• pp.627-636
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• 2011

Recently, to prevent explosive spalling of high-strength concrete (HSC) members, the usage of nylon fiber instead of polypropylene fiber has increased. Past experimental studies have been conducted to examine the spalling and mechanical properties of HSC with nylon fibers when exposed to elevated temperature. However, the previous studies on HSC with nylon fibers subjected to high temperatures were performed only on the properties such as spalling, compressive strength, and elastic modulus rather than investigations on to the behaviors such as thermal strain, total strain, steady state creep, and transient creep. Therefore, in this study thermal strain, total strain, steady state creep, and transient creep of HSC mixed with nylon fibers with water to binder ratio of 0.30 to 0.15 were tested. The experimental results showed that nylon fibers did not affect the performance of HSC with nylon fibers at high temperatures. However, HSC with nylon fibers generated a larger transient creep strain than that of HSC without fibers and normal strength concrete.

• Journal of the Korean Recycled Construction Resources Institute
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• v.2 no.3
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• pp.180-187
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• 2014

The purpose of this study is to evaluate on the mechanical properties of High Volume Mineral Admixture(HVMA) high strength concrete to reduce the amount use of Ordinary Potland Cement, to discover the optimized HVMA binder and to test HVMA concrete based on the change of W/B and curing temperature. The results were shown as follows: The HVMA binder using the mixture of combined heat power plant fly ash and anhydrous gypsum known as inorganic activators with the mixture of blast furnace slag and fly ash was optimized. The mixture of HVMA high strength concrete at 26% of W/B ratio had a good result on flow characteristic and mechanical properties. High strength HVMA concrete over 50MPa is possibly manufactured over curing temperature $20^{\circ}C$.