• 한국사회복지학
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• 제27권
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• pp.275-304
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• 1995

• 드라이브 ㆍ 컨트롤
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• 제6권1호
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• pp.2-10
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• 2009

• 드라이브 ㆍ 컨트롤
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• 제18권1호
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• pp.49-61
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• 2021

• Asia Marketing Journal
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• 제11권4호
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• pp.129-138
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• 2010

• Applied Biological Chemistry
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• 제25권4호
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• pp.232-238
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• 1982

농가포장(農家圃場)(13개소(個所))에서 중질소비시험결과(重窒素肥試驗結果) 80%의 포장(圃場)에서 이용율(利用率)은 감법(減法)의 경우가 표식법(標識法)의 경우보다 높았으며 비료질소(肥料窒素)에 의(依)한 토양질소흡수(土壤窒素吸收)가 조장(助長)된 것을 나타낸다. 이 두 방법(方法)의 값은 포장간(圃場間)에에 류사(類似)한 경향(傾向)을 보였다. 황피뇨소(黃皮尿素)와 국지시용(局地施用)은 시비효율(施肥效率)(시비질소(施肥窒素) 당증수량(當增收量), Fe)을 분시(分施)의 15에서 23으로 증대(增大)시켰는데 이는 이용율(利用率)(Ef)을 29에서 50으로 증대시킨 때문이며 흡수시비질소효율(吸收施肥窒素效率)(Ef)은 50에서 46으로 감소하는 경향(傾向)을 보였다. 통일계(統一系)의 다수확능(多收穫能)은 흡수시비질소효율(吸收施肥窒素效率), 전이율(轉移率) 및 토양질소선호지수(土壤窒素選好指數)(시비질소흡수증가량(施肥窒素吸收增加量)에 대(對)한 토양질소흡수증가량(土壤窒素吸收增加量)의 비(比) PI)가 큰데 기인한 것 같다. 일련의 본(本) 연구(硏究)는 시비체계하(施肥體系下)의 수량(收量)은 이용율(利用率)과 흡수시비질소효율(吸收施肥窒素效率)의 적(積)인 시비효율(施肥效率)에 의존(依存)하며 비료(肥料)의 형태(形態)나 시비시기(施肥時期) 및 방법(方法) 등(方法) 시비관리(施肥管理)는 주(主)로 이용율(利用率)을 증대(增大)시키고 이용율(利用率)의 한계(限界)는 품종(品種) 특성(特性)에 주(主)로 기인(基因)하는 흡수시비질소효율(吸收施肥窒素效率)에 의(依)하여 조정(調整)됨을 보였다.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2006년도 추계 종합학술대회 논문집
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• pp.580-583
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• 2006

웹 애플리케이션은 복잡한 비즈니스 소프트웨어 및 온라인 서비스의 바탕이 되는 플랫폼으로서 더욱 많이 사용되고 있다. 초기 JSP 분야에는 모델 1과 모델 2라는 두 가지 아키텍처 설계 용어가 등장한다. 이들 두 용어는 현재 JSP 분야 문서에는 언급되고 있지는 않지만, 현재 웹 애플리케이션의 아키텍처 설계에는 광범위하게 적용되고 있다. 본 논문에서는 웹 애플리케이션 프레임워크 정의 및 프레임워크 패턴, 설계시 고려사항 등을 토대로 컴포넌트가 실행되는 기반을 구성하는 프레임워크를 설계한다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2010년도 하계학술대회 논문집
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• pp.97-97
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• 2010

A new electric application method was developed to prepare epoxy/organoclay nanocomposite for the electrical insulation in the AC electric fields and it could be also used in the field of various viscous polymer/organoclay systems. The applied AC electric field condition was as follows; (1) inter-electrode distance: 40 mm, (2) application voltage: 3-11 kV, (3) frequency: 60~1,000 Hz, and (4) application time: 0~60 min. To characterize the epoxy/clay nanocomposite, WAXS and TEM analyses were confirmed. In order to explain how the organic modifier affects the exfoliation phenomena, a mechanism of the oscillating collision of the quaternary ammonium head was proposed and the effects of the AC voltage and frequency and the organoclay content were studied.

• 한국토양비료학회지
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• 제48권5호
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• pp.436-441
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• 2015

The chemical properties of paddy fields in Gyeonggi province were monitored every 4 years from 1999 to 2015 in order to provide basic information for soil fertility management of paddy fields. In 2015, the soil chemical properties of paddy fields were 5.9 in pH, $23g\;kg^{-1}$ in organic matter (OM), and $84mg\;kg^{-1}$ in available phosphate (Avail. $P_2O_5$). Exchangeable (Exch.) potassium (K), calcium (Ca) and magnesium (Mg) were 0.30, 5.1 and $1.3cmol_ckg^{-1}$, respectively, and available silicate (Avail. $SiO_2$) was $129mg\;kg^{-1}$. In the long-term analysis, the contents of Avail. $SiO_2$, Exch. Ca and pH of paddy soils showed increasing tendency. However, Avail. $P_2O_5$ and Exch. K tended to decrease, and there were no significant changes in the contents of OM and Exch. Mg. Paddy soil within appropriate pH range increased from 44% in 1999 to 76% in 2003, 84% in 2007, 63% in 2011, and 80% in 2015. But soil within appropriate range of Exch. Ca tended to decrease, showing 36% in 1999, 42% in 2003, 38% in 2007, 37% in 2011 and 32% in 2015. In case of Avail. $SiO_2$, soil within appropriate range increased from 14% in 1999 to 17% in 2003, 18% in 2007, 16% in 2011, and 31% in 2015. As a result, paddy fields with less in nutrient level need to be more fertilized based on soil analysis. And the application of silicate fertilizer is strongly recommended to those of paddy fields in need. Also soil management such as the cultivation of green manure crop or application of rice straw will be necessary to increase the organic matter content of paddy soil.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2016년도 제50회 동계 정기학술대회 초록집
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• pp.332.1-332.1
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• 2016

Application of magnetic fields is important to characterize the carrier dynamics in semiconductor quantum structures. We performed photoluminescence (PL) measurements from an InGaP-AlInGaP single quantum well under pulsed magnetic fields to 50 T. The zero field interband PL transition energy matches well with the self-consistent Poisson-Schr?dinger equation. We attempted to analyze the dimensionality of the quantum well by using the diamagnetic shift of the magnetoexciton. The real quantum well has finite thickness that causes the quasi-two-dimensional behavior of the exciton diamagnetic shift. The PL intensity diminishes with increasing magnetic field because of the exciton motion in the presence of magnetic field.

• International Journal of Precision Engineering and Manufacturing
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• 제9권3호
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• pp.85-91
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• 2008

Robot technology is a remarkably interdisciplinary research area, one that can be employed in various industrial fields as well as higher value-added fields. The construction industry, on the other hand, has been known as one of the most difficult research fields to apply robotic schemes. Therefore, applying robot technologies in the construction industry is quite a challenging topic. This paper aims to introduce the progress of automated robotic systems in construction fields, namely with respect to construction robots. While construction robots have a very wide range of application depending on the huge market size of the construction industry, there still exist a lot of problems such as highly risky working environment and inefficiency due to the labor intensive characteristic. In order to solve these problems, a variety of construction robots have been developed and, in this paper, the current state of the robotic systems for construction works and the vision of future robot technology in the construction field are introduced.