• Title/Summary/Keyword: EAS

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Effects of EAS Systems on Pacemakers and ICDs Malfunction (도난방지 시스템의 전자기장이 인공심장 박동기 등의 오동작에 미치는 영향)

  • Shim, Young-Woo;Kim, Jong-Jeong;Yang, Dong-In;Lee, Moon-Hyung;Kim, Deok-Won
    • Journal of the Institute of Electronics Engineers of Korea SC
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    • v.46 no.6
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    • pp.44-49
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    • 2009
  • EAS (electronic article surveillance) systems have increased rapidly for article surveillance. In this paper, the strength of the EMF (electromagnetic fields) of EAS systems were measured. Pacemaker and ICD were investigated for inappropriate response resulting from EM (electromagnetic) EAS systems. The strength of EMF and the response of pacemaker and ICD were measured in the inner left side, outer right sides and the center of gates of the 6.3 kHz and 14.25 kHz EAS systems at a height of 130cm. As the result, EMF of the EAS system using 14.25 kHz was stronger than that of 6.3 kHz. AU interferences were observed only for 14.25 kHz, and the noisy ECG was found in three static positions on the pacemaker. The ICD resulted in noise reversion and VF (ventricular fibrillation) both static and moving positions by the EMP of 14.25 kHz EAS system. Therefore, it is necessary to post a message warning radiation of EMF from every EAS systems and possible risk of pacemakers and ICDs.

Task Characteristics and Utilization of Electronic Approval System : Media Richness Theory Perspective (업무특성과 전자결재시스템 활용간의 관계에 대한 탐색적 연구:매체 풍부성 이론 관점)

  • 김영걸;오승엽
    • Korean Management Science Review
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    • v.17 no.1
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    • pp.31-40
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    • 2000
  • With the rapidly changing external environment and the increasing internal process complexity more and more organizations are adopting the Electronic Approval System(EAS) for their competitiveness. This paper defines EAS as a core organizational communication medium investigates factors which influence EAS's use from a media rich-ness theory and shows sutiable EAS functions for equivocality resolution and uncertainty reduction. Results from the five EAS implementation sites show that most organizations use EAS only for tasks with low equivocality and low uncertainty. Additional functionalities such as video conferencing and database access were suggested for fu-ture EAS system to enhance their utilization for more cirtical and unstructed tasks.

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Elicitor-Inducible 5-epi-Aristolochene Hydroxylase in Suspension Cultures of Tobacco (Nicotiana tabacum L.) (담배 (Nicotiana tabacum L.) 현탁배양세포의 Elicitor 유도성 5-epi-Aristolochene Hydroxylase)

  • KWON, Soon-Tae;CHAPPELL, Joseph
    • Korean Journal of Plant Tissue Culture
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    • v.25 no.3
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    • pp.141-146
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    • 1998
  • Feeding experiment of [$^3$H] 5-epi-aristolochene (5-EAS) demonstrated in suspension cultures of tobacco (Nicotiana tabacum L.) that 5-EAS hydroxylase activity was absent from control cells, but induced to a maximum level within 18 h after the addition of cellulase, and was very similar to induction pattern of sesquiterpene cyclase. This result suggest that the conversion of 5-EAS to capsidiol is catalyzed by at least one elicitor-inducible hydroxylase. Cytochrome P450 inhibitors, ancymidol and ketoconazole, suppressed the elicitor-induced capsidiol accumulation by inhibiting hydroxylase activity, suggesting that the hydroxylase may be a Cyt P450 type enzyme.

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EAS Solid Element for Free Vibration Analysis of Laminated Composite and Sandwich Plate Structures (적층된 복합 및 샌드위치 판 구조의 자유진동 해석을 위한 EAS 고체 유한요소)

  • Park, Dae-Yong;Noh, Myung-Hyun;Lee, Sang-Youl
    • Journal of the Korean Society for Advanced Composite Structures
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    • v.3 no.3
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    • pp.22-30
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    • 2012
  • This study deals with an enhanced assumed strain (EAS) three-dimensional element for free vibration analysis of laminated composite and sandwich structures. The three-dimensional finite element (FE) formulation based on the EAS method for composite structures shows excellence from the standpoints of computational efficiency, especially for distorted element shapes. Using the EAS FE formulation developed for this study, the effects of side-to-thickness ratios, aspect ratios and ply orientations on the natural frequency are studied and compared with the available elasticity solutions and other plate theories. The numerical results obtained are in good agreement with those reported by other investigators. The new approach works well for the numerical experiments tested, especially for complex structures such as sandwich plates with laminated composite faces.

Ear Acupuncture and Ear Acupressure in Elderly Population: A Scoping Review on Domestic Clinical Research (노인 인구에 대한 이침치료와 이압요법의 국내 임상연구 동향)

  • Kwon, Chan-Young;Lee, Boram
    • Journal of Oriental Neuropsychiatry
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    • v.32 no.3
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    • pp.219-234
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    • 2021
  • Objectives: The objective of this study was to review and analyze domestic research trends of ear acupuncture and ear acupressure (EAs) in elderly population. Methods: We searched five domestic databases to collect relevant original clinical studies up to July 2, 2021. Conditions of elderly participants and results reported in included studies were analyzed. Methods of EAs used were analyzed referring to STandards for Reporting Interventions in Clinical Trials of Acupuncture. Results: A total of 17 studies including nine randomized controlled trials were analyzed. As for the target condition, sleep disorder was the most common (n=9), followed by pain condition (n=6). There were three studies on participants with specific Sasang constitution. Procedures of EAs used in nursing studies were generally similar to those of Korean medicine (KM). Conclusions: Domestic studies have reported that EAs might be helpful in improving the health of the elderly. In the future, more research studies using EAs for the elderly are needed in KM field. Collaborative research with KM nurses is recommended. EAs should be further investigated as a promising KM intervention in terms of health and welfare for the elderly.

A Comparative Study of Motor Recovery from Stroke between High and Low Frequency Electrical Acupoint Stimulation (뇌경색 환자의 운동장애에 대한 주파수별 전침치료효과의 비교)

  • Kim, Young-Suk;Jung, Woo-Sang;Na, Byung-Jo;Park, Seong-Uk;Moon, Sang-Kwan;Park, Jung-Mi;Ko, Chang-Nam;Cho, Ki-Ho;Bae, Hyung-Sup;Hong, Jin-Woo
    • The Journal of Korean Medicine
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    • v.28 no.3 s.71
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    • pp.289-298
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    • 2007
  • Objectives : Electrical acupoint stimulation (EAS) has been used to treat motor dysfunction of stroke patients with reportedly effective results. The purpose of this study was to evaluate the efficacy of EAS with different frequencies in treating motor dysfunction of ischemic stroke patients. Methods : The subjects of this study were sixty-two ischemic stroke patients with motor dysfunction at Kyunghee Oriental Medicine Hospital who were hospitalized for one week to one month from onset. They were treated with 2Hz or 120Hz EAS for two weeks, and motor evoked potentials (MEP) were measured before and after EAS treatment. To compare the effect of 2Hz EAS with 120Hz, we measured latency, central motor conduction time (CMCT) and amplitude of MEP before and after EAS treatment. Results : After two weeks of treatment, we compared MEP data of the affected side between the 2Hz group and the 120Hz group. The 2Hz group showed more significant improvement than the 120Hz group in latency, CMCT and amplitude (P=0.008, 0.002, 0.002). In case of the affected side MEP data divided by normal side MEP data, the 2Hz group also showed improvement on latency, CMCT and amplitude with significant differences (P=0.003, 0.000, 0.008). Conclusions : These results suggest that low frequency EAS activates the central motor conduction system better than high frequency EAS, and it means that EAS with low frequency is more helpful for motor recovery after ischemic stroke than that with high frequency.

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The Development of Electronic Auction System(EAS) for Wholesale Market using Microprocessor (마이크로프로세서를 이용한 도매시장의 전자경매시스템 개발)

  • Choi, Han-Soo;Jung, Heon
    • Journal of Institute of Control, Robotics and Systems
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    • v.5 no.7
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    • pp.855-861
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    • 1999
  • In this paper, we present new application for the auction method which has been based on one-chip microprocessors. We develop the portable wired terminal for market blocker. And, using that, the recommended price of products is able to push into and show the information of action status. Through our research, using EAS(Electronic Auction System), we can prevent supplier from blocker's rigging the market, because anyone who have a qualification for the action blocker is able to participate in action.

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A Study on Factors of Electronic Authorizing System Affecting Productivity Increase (전자 결재 시스템의 생산성 향상에 미치는 요인에 대한 연구)

  • 김준우
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.19 no.38
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    • pp.217-224
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    • 1996
  • Recently groupware has been popularly adopted by corperations to gain competitive position. In Korea, one of major function of those systems is the Electronic Authorizing System because korean firms have authorizing system but western firms do not. Thus researches on EAS has never been produced before. The purpose of this research is to build the research framework for productivity measurement of EAS. The research model of EAS has investigated three dimensions including Business process, ease of system use and media richness to meet this end. Based on this model, author conducted case study with mailing questionaires. The result of research shows that the factors of the business process and ease of system use raise the productivity but the factor of electronic media a little decreases it. Also author finds business process affects the productivity in three ways such as changing layout of papers for authorizing, changing business process and removing waiting time for authorization. Finally, based on the result of research, this paper adds some recommendations for EAS builder.

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A Hybrid Service Orchestration Framework based on BPEL4WS

  • Kim, Sung-Min
    • Journal of information and communication convergence engineering
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    • v.7 no.3
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    • pp.253-257
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    • 2009
  • As the value of B2B integration gets more importance and the business process becomes more complex, BPEL4WS standard has been focused for the solution of the problems which is based on web service technology. Many vendors implement the standard in their systems to integrate B2B and web service based inner-Enterprise Application(EA)s. But there is no way to use the standard to integrate non-web service based EAs, because the standard is designed only for Service Oriented Architecture (SOA) over web services. This paper proposes Hybrid Service Orchestration Framework to participate web services and also non-web service based EAs in the business process as a partner using BPEL4WS standard. The framework introduces Hybrid Service Architecture to represent non-web service based EAs as a service, so BPEL4WS could be used to integrate web services and non-web service based EAs. And the framework also introduces Hybrid Service Toolkit to support software level facilities. The paper also introduces Hybrid Orchestration System that is based on Hybrid Service Orchestration Framework.

Inhibitory Effect of Extract of Euonymus alatus (Thunb.) Sieb. on the Production of Inflammatory Cytokines (귀전우(鬼箭羽) 추출물의 염증성세포활성물질 억제효과)

  • Kim, Dae-Hyeon;Kim, Byung-Jin;Park, Kyung-Bae;Lee, Ju-Sung;Sung, Kang-Keyng;Park, Sung-Joo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.23 no.2
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    • pp.368-373
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    • 2009
  • The purpose of this study was to investigate the anti-inflammatory effects of water extract from Euonymus alatus (Thunb.) Sieb. (EAS) on the RAW 264.7 cells. To evaluate of anti-inflammatory of EAS, we examined the cytokine productions on lipopolysaccharide (LPS)-induced RAW 264.7 cells and also inhibitory mechanisms using Western blot. EAS reduced LPS-induced production of nitric oxide (NO), interleukin (IL)-1b, IL-6, IL-10 and tumor necrosis factor-a (TNF-a) in RAW 264.7 cells. EAS inhibited the activation of mitogen-activated protein kinases (MAPKs) such as p38, extracelluar signal-regulated kinase (ERK 1/2) and c-Jun NH2-terminal kinase (JNK) but not of inhibitory kappa B a (Ik-Ba) degradation in the LPS-stimulated RAW 264.7 cells. In conclusion, EAS down-regulated LPS-induced NO and cytokines production, which could provide a clinical basis.