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PLC를 이용한 Portainer Crane의 고장진단 시스템의 개발
최제헌(Jae-Heon Choi),김규년(Kyoo-Nyun Kim),Anatoly Tuzovsky(Anatoly Tuzovsky),정민포(Min-Po Jung),추경환(Gyung-Hwan Chu),이종구(Jong-Gu Lee),엄진아(Jin-Ah Um),정태동(Tae-Dong Jung),김종훈(Jong-Hun Kim),박근현(Gun-Hyun Pak) 한국정보과학회 1995 한국정보과학회 학술발표논문집 Vol.22 No.1
본 논문에서는, 항만에서 사용되고 있는 Portainer Crane의 고장진단 시스템을 객체지향기법으로 설계 및 구현한 내용과, 그 결과를 제시한다. Crane의 각 접점들의 상태를 제어하는 PLC(Programmable Logic controller)를 PC와 RS-232c Serial port로 서로 연결해서 정해진 통신 protocol을 사용하여 Crane의 상태를 진단한다. PLC와의 통신부분은 driver방식으로 구성하여 다른 종류의 PLC도 쉽게 적용할 수 있도록 설계하였다. 주기적으로 PLC로부터 Crane의 각 부분들의 상태를 어떤 시간제한내에 모니터링하기 위해서, 본 시스템은 1개의 생성프로세스와 3개의 프로세스로 구성되었다. 실제 작업을 수행하는것은 Display manager, Disk manager, Signal manager의 3개 프로세스이다. 개발환경은, 다중프로세스와 이후의 네트워크 이용을 고려하여 Windows NT 3.5 환경에서 Visual C++ 2.0을 사용하였다.
Modeling stand-level mortality based on maximum stem number and seasonal temperature
Kim, Moonil,Lee, Woo-Kyun,Choi, Go-Mee,Song, Cholho,Lim, Chul-Hee,Moon, Jooyeon,Piao, Dongfan,Kraxner, Florian,Shividenko, Anatoly,Forsell, Nicklas Elsevier Scientific Pub.Co 2017 Forest ecology and management Vol.386 No.-
<P><B>Abstract</B></P> <P>Mortality is a key process in forest stand dynamics. However, tree mortality is not well understood, particularly in relation to climatic factors. The objectives of this study were to: (<I>i</I>) determine the patterns of maximum stem number per ha (MSN) over dominant tree height from 5-year remeasurements of the permanent sample plots for temperate forests [Red pine (<I>Pinus densiflora</I>), Japanese larch (<I>Larix kaempferi</I>), Korean pine (<I>Pinus koraiensis</I>), Chinese cork oak (<I>Quercus variabilis</I>), and Mongolian oak (<I>Quercus mongolica</I>)] using Sterba’s theory and Korean National Forest Inventory (NFI) data, (<I>ii</I>) develop a stand-level mortality (self-thinning) model using the MSN curve, and (<I>iii</I>) assess the impact of temperature on tree mortality in semi-variogram and linear regression models. The MSN curve represents the upper boundary of observed stem numbers per ha. The developed mortality model with our results showed a high degree of reliability (R<SUP>2</SUP> =0.55–0.81) and no obvious dependencies or patterns in residuals. However, spatial autocorrelation was detected from residuals of coniferous species (Red pine, Japanese larch and Korean pine), but not for oak species (Chinese cork oak and Mongolian oak). Based on the linear regression analysis of residuals, we found that the mortality of coniferous forests tended to increase with the rising seasonal temperature. This is more evident during winter and spring months. Conversely, oak mortality did not significantly vary with increasing temperature. These findings indicate that enhanced tree mortality due to rising temperatures in response to climate change is possible, especially in coniferous forests, and is expected to contribute to forest management decisions.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Applicability of Sterba’s maximum stem number curve on a national scale was confirmed. </LI> <LI> Effect of rising temperature on mortality should be differentiated by tree species. </LI> <LI> Mortality of coniferous trees tends to increase with rising seasonal temperature. </LI> <LI> Coniferous trees are likely more sensitive than oaks to climate change in Korea. </LI> </UL> </P>
Nedashkovskaya, Olga I,Kim, Seung Bum,Vancanneyt, Marc,Lysenko, Anatoly M,Shin, Dong Sung,Park, Myung Soo,Lee, Kang Hyun,Jung, Won Jin,Kalinovskaya, Natalia I,Mikhailov, Valery V,Bae, Kyung Sook,Swing Society for General Microbiology 2006 International journal of systematic and evolutiona Vol.56 No.5
<P>The taxonomic position of three novel marine, heterotrophic, pigmented and agarolytic bacteria with gliding motility, isolated from the sea urchin Strongylocentrotus intermedius, was investigated. 16S rRNA gene sequence analysis revealed that strains KMM 6166, KMM 6172T and KMM 6173 are members of the phylum Bacteroidetes; their nearest neighbours were Belliella baltica and Hongiella marincola (similarities of 94.5 and 93.6 %, respectively). The DNA G+C content of the strains was 44-45 mol%. The predominant fatty acids were C15 : 0 iso, C16:1omega5c, C17:1 iso omega9c, C17:0 iso 3-OH and summed feature 3 (C16:1omega7c and/or C15:0 iso 2-OH). The major respiratory quinone was MK-7. Results of molecular experiments supported by phenotypic and chemotaxonomic data enabled the isolates to be classified as representatives of a novel species in a new genus, for which the name Echinicola pacifica gen. nov., sp. nov. is proposed. Echinicola pacifica is the type species of the genus Echinicola, and its type strain is KMM 6172T (=KCTC 12368T=LMG 23350T).</P>
Nedashkovskaya, Olga I,Vancanneyt, Marc,Cleenwerck, Ilse,Snauwaert, Cindy,Kim, Seung Bum,Lysenko, Anatoly M,Shevchenko, Lyudmila S,Lee, Kang Hyun,Park, Myung Soo,Frolova, Galina M,Mikhailov, Valery V Society for General Microbiology 2006 International journal of systematic and evolutiona Vol.56 No.1
<P>The taxonomic position of three novel, marine, heterotrophic, aerobic, pigmented, gliding bacteria, isolated from the green alga Ulva fenestrata in the Sea of Japan, was determined. 16S rRNA gene sequence analysis revealed that the strains belong to the genus Arenibacter. The results of DNA-DNA hybridization experiments supported by phenotypic and chemotaxonomic data showed that the isolates represent a novel species of the genus Arenibacter, for which the name Arenibacter palladensis sp. nov. is proposed. The type strain is KMM 3961T (= LMG 21972T = CIP 108849T).</P>