• Title/Summary/Keyword: Sensitive Industry

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Effect of Organic Material, Active Carbon and Magnesium on the Growth of Zoysia koreana (잔디생육에 대한 유기물, 활성탄소 및 마그네슘의 효과)

  • Choi, Byung-Ju;Shim, Jai-Sung;Park, Hoon
    • Asian Journal of Turfgrass Science
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    • v.8 no.3
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    • pp.193-199
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    • 1994
  • Effect pf rape seed oil cake compast (OM) active carbon(C) compound fertilizer (NPK) and magnesium sulfate (Mg) application on Zoysia koreana growth by lysimeter of 50cm soil column filled with a low fertility loam. Effect on growth was in order of OM>OM . NPK interaction> NPK . active carbon and Mg were not effective OM . NPK interaction effect was negative on leaf width and root dry matter yield. OM and OM . NPK interaction were most effective on rhizome growth. Their effect did not change the ratio of growth rates between aerial part and rhizome but change that between aerial part and root. Leaf width was most sensitive to the treatments.

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Isolation of Photobacterium damselae subsp. damselae from zebra shark Stegostoma fasciatum

  • Han, Jee Eun;Gomez, Dennis K.;Kim, Ji Hyung;Choresca, Casiano H. Jr.;Shin, Sang Phil;Baeck, Gun Wook;Park, Se Chang
    • Korean Journal of Veterinary Research
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    • v.49 no.1
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    • pp.35-38
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    • 2009
  • The zebra shark Stegostoma fasciatum which had been reared in the commercial aquaria was found dead and submitted for postmortem examination. A pure bacterial culture was isolated from pale and enlarged liver. The analysis of ureC and 16S rRNA genes confirmed the isolate as Photobacterium (P.) damselae subsp. damselae and this pathogen was sensitive to gentamicin. Although, no mortality in mouse was observed in the experimental infection study, the isolation of this pathogen in aquarium fish is significant because it can act as a reservoir to other aquatic animals and can also be zoonotic potential to human during aquarium management. This paper describes the first isolation of P. damselae subsp. damselae from zebra shark.

Real-Time Small Exposed Area $SiO_2$ Films Thickness Monitoring in Plasma Etching Using Plasma Impedance Monitoring with Modified Principal Component Analysis

  • Jang, Hae-Gyu;Nam, Jae-Uk;Chae, Hui-Yeop
    • Proceedings of the Korean Vacuum Society Conference
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    • 2013.02a
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    • pp.320-320
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    • 2013
  • Film thickness monitoring with plasma impedance monitoring (PIM) is demonstrated for small area $SiO_2$ RF plasma etching processes in this work. The chamber conditions were monitored by the impedance signal variation from the I-V monitoring system. Moreover, modified principal component analysis (mPCA) was applied to estimate the $SiO_2$ film thickness. For verification, the PIM was compared with optical emission spectroscopy (OES) signals which are widely used in the semiconductor industry. The results indicated that film thickness can be estimated by 1st principal component (PC) and 2nd PC. Film thickness monitoring of small area $SiO_2$ etching was successfully demonstrated with RF plasma harmonic impedance monitoring and mPCA. We believe that this technique can be potentially applied to plasma etching processes as a sensitive process monitoring tool.

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Study of Process Model Using CAD System and Distributed Building Component Database (CAD 시스템과 분산형 건축부품 데이터베이스를 이용한 프로세스 모델에 관한 연구)

  • 박현수
    • Korean Journal of Computational Design and Engineering
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    • v.7 no.1
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    • pp.66-73
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    • 2002
  • The purpose of this study is to propose a new process model for architects and suppliers in AEC(Architectural, Engineering and Construction) industry, which comes from its utilization of a distributed database. Information used by participants of this process is not held in one singular application sewer, but in tile databases of multiple participants. This study addresses the problem of coping with dynamic information changes that architects face when designing with increasingly time-sensitive product information from multiple suppliers. It also describes the new distributed architecture for design representation, and outlines a corresponding process model to address the needs architectural designers during design and procurement phases. The feasibility of the process was tested in a prototype system that combines existing technologies, which allows for an objects transfer from the Web to the CAD application.

Structural Performance of Cast-In-Place Infill Wall Frames using High Performance Fiber Reinforced Cement Composites (고인성 시멘트 복합재료를 사용한 현장타설 끼움벽 골조의 고조성능)

  • Lee Hye Yeon;Kim Sun Woo;Park Wan-Shin;Lee Gab-Won;Choi Chang Sik;Yun Hyun-Do
    • Proceedings of the Korea Concrete Institute Conference
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    • 2005.05a
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    • pp.275-278
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    • 2005
  • High performance fiber reinforced cement composites(HPFRCCs) is a class of high ductile fiber reinforced cementitious composites developed for applications in the sensitive construction industry. HPFRCCs has undergone major evolution in both materials development and the range of emerging applications. This paper is to evaluate structural strengthening performance of LRCF(Lightly reinforced concrete frame) using the HPFRCCs. The experimental results, as expected, show that the crack load, yield load, and limited load are superior for specimen with HPFRCCs infill wall due to crosslink effect of fibers in concrete.

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Critical Factors for Container Terminal Productivity

  • Park, Nam-Kyu;Kim, Joo-Young
    • Journal of Navigation and Port Research
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    • v.33 no.2
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    • pp.153-159
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    • 2009
  • The awareness of the high-value industry for container terminal leads competitiveness of container terminals to keep high fiercely. In regards to competitive factors of container terminal, the most important point among several factors is seemed to be the speed of container loading and unloading on quayside. In container terminals in Korea, the productivity shows big difference even though its condition is similar to each terminal. The objective of this paper is to find the critical factors of container terminal productivity, which is dependant upon the capability, quantity of quay crane, transfer vehicle, and so on. For this purpose, we have researched related literatures, and collected data about container terminals in South Korea. Furthermore, we tested sensitive analysis to evaluate the extent of productivity by changing independent variable. And then we established the regression model to evaluate which factor has had the biggest impact on productivity. The results of this paper can give terminal operators guideline to improve productivity.

Toward Fintech Adoption Framework for Developing Countries -A Literature Review based on the Stakeholder Perspective

  • Tapanainen, Tommi
    • Journal of Information Technology Applications and Management
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    • v.27 no.5
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    • pp.1-22
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    • 2020
  • Due to the low usage level of traditional financial services in many developing countries, Fintech services that often substitute for such traditional services with greater convenience have great potential in these markets. However, there have thus far been relatively few attempts to examine Fintech adoption in developing countries. As financial services are a highly sensitive industry in terms of government regulation and consumer trust, it is critical for policymakers to understand how to foster a healthy Fintech marketplace in developing country environments. In this paper, we review the scholarly literature on Fintech adoption with respect to three stakeholder groups: customers, service providers, and policymakers. Adding with practitioner-oriented documentation relating to Fintech adoption in Vietnam, we derive propositions for Fintech adoption research in Vietnam and similar developing countries. We collect these propositions as a framework that suggests avenues for future research.

Compaction Characteristic of Alkali Activated Slag-Red Mud Dry Pavement with Red Mud (레드머드 첨가에 따른 알칼리활성화 슬래그-레드머드 건식 흙포장재의 다짐 특성)

  • Kang, Hye Ju;Lee, Hu Seok;Hwang, Byuong Il;Kang, Suk Pyo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2017.11a
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    • pp.28-29
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    • 2017
  • For this study, alkali-activated slag red-mud pavement is manufactured to examine the usability of red-mud as a recycling material in the construction industry. In the compaction curve in terms of the replacement ratio of red mud by binder type, the dry density changed gradually depending on the water content, which implies that there is no distinct difference in compaction according to the replacement ratio of red mud. The compressive strength at 28 days was observed to be 18.9~27.0MPa in ASS, and 18.4~28.8MPa in OPC, showing a similar level between the specimens.

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Case Study Of Reducing Specimen Disturbance Using Vertical Fixing Sample Frame (VFSF) (연직고정장치(VFSF)를 활용한 불교란시료의 교란효과 저감사례)

  • Lim, Beyong-Seok;Seo, Deok-Dong
    • Journal of the Korean GEO-environmental Society
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    • v.7 no.2
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    • pp.55-66
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    • 2006
  • The existing Highway LA-1 of US is required to be replaced for covering increasing regional demands of transportation such as Hurricane evacuation and oil industry. This 28 km crosses wetlands and is a sensitive environmental area. Huge amount of soil investigation and laboratory tests were performed with best efforts to overcome inherit errors of sampling, disturbance, and testing procedures for this project. The data scattering was corrected through using central tendency theory.

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Speed Sensorless Control for Interior Permanent Magnet Synchronous Motor based on an Instantaneous Reactive Power and a Fuzzy PI Compensator (순시무효전력과 퍼이 이득 보상기를 이용한 IPMSM의 속도 센서리스 제어)

  • Kang, Hyoung-Seok;Shin, Jae-Hwa;You, Wan-Sik;Kang, Min-Hyoung;Kim, Young-Seok
    • Proceedings of the KIEE Conference
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    • 2007.07a
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    • pp.173-174
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    • 2007
  • In this paper, a new speed sensorless control based on an instantaneous reactive power and a fuzzy PI compensator are proposed for the interior permanent magnet synchronous motor (IPMSM) drives. The conventional fixed gain PI and PID controllers are very sensitive to step change of command speed, parameter variations and load disturbance. Also, to the estimated speeds are compensated by using an instantaneous reactive power in synchronously rotating reference frame. In a fuzzy compensator, the system control parameters are adjusted by a fuzzy rule based system, which is a logical model of the human behavior for process control. The effectiveness of algorithm is confirmed by the experiments.

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