• Title/Summary/Keyword: EM-S

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The roles of electronic marketplace for buyer-supplier relationship: collaborative system architecture

  • Han, Seong-Yoon
    • Proceedings of the Korea Association of Information Systems Conference
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    • 2005.12a
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    • pp.381-387
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    • 2005
  • As the most widely used media of BtoB e-business, the e-Marketplace (EM) can play an important role in the age of c-commerce (collaborative commerce). In supply chain management (SCM) area, the relationship-based collaboration among partners has shown great efficiency. Although the collaboration is important in both areas of EM and SCM there has been a critical difference in the selection of trade partners between them. In this paper, the EM's collaborative stages for integration with its customer system are reviewed and a system architecture is proposed for EM's electronic functional role within the perspective of collaborative commerce and buyer-supplier relationship. The relationship-based BtoB commerce through EM is reviewed to explain that it can be more beneficial than the commerce based on the price competitive selection of trade partners. With the proposed system architecture, an EM can be the functional medium for the collaborative IOIS system architecture.

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The Effect of Chairman Tenure on Governance and Earnings Management: A Case Study in Iraq

  • AHMED, Mohammed Ghanim;GANESAN, Yuvaraj;HASHIM, Fathyah;SADAA, Abdullah Mohammed
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.3
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    • pp.1205-1215
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    • 2021
  • The study's purpose is to assess how board chairman tenure (BCT) contributes to limiting the earnings management practices (EM) in Iraqi banks. We compare the direct influence of the corporate governance mechanisms (CG) on EM practices and use BCT as a moderator that affects the influence of CG on EM. The sample of the study is the financial' firms listed on the Iraqi Stock Exchange for the period 2013-2018. Using purposive sampling data was collected from annual reports and data stream. We use the random effect model in panel data regression by using Stata to analyze the data. Findings proved that CG mechanisms insignificantly influence EM, except the meeting frequency was significant. By contrast, BCT had a positive and considerable influence as the moderating variable between CG and EM. These results suggested that the Chairman's tenure on the board lead to enhanced governance mechanisms to limit the EM practice in Iraqi financial firms. Accordingly, this study is one of the few studies in the Iraq environment that examine the influence of CG mechanisms on EM practices, in addition to examining the BCT as a moderator between CG and EM, thus, filling the gap in such studies in developing countries.

Development of Multi-layer Electromagnetic wave Absorbers Using Sendust (Sendust를 이용한 적층형 전파흡수체의 개발)

  • Ryu Jae-Min;Kim Dong-Il;Che Seung-Hun
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2006.06b
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    • pp.97-101
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    • 2006
  • In this paper, Multi-layer EM wave absorbers using Sendust are presented. The bandwidth of the Multi-layer Sendust EM wave absorbers over 10 dB is extended in S-Band And we investigated the mixing effects of $Al(OH)_3$ on Multi-layer Sendust EM wave Absorbers. As a result, the Multi-layer Sendust EM wave absorbers mixed with $Al(OH)_3$ showed a extended bandwidth over 10 dB compared with non-mixed Multi-layer Sendust EM wave absorbers in S-Band.

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Anti-inflammatory Effects of Effective Microorganism Fermentation Substance on Atopic Dermatitis-like NC/Nga Mouse Model (아토피 피부염 유사 NC/Nga 마우스 모델에서 유용 미생물 발효물질의 항염증효과)

  • Mok, Ji-Ye;Jeong, Seung-Il;Cho, Jung-Keun;Choi, Ji-Won;Nam, Sang-Yun;Chang, Won-Ghil;Moon, Byung-Eun;Park, Kwang-Hyun;Jang, Seon-Il
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.24 no.2
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    • pp.258-265
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    • 2010
  • Atopic dermatitis (AD) is a chronically relapsing pruritic inflammatory skin disease. To find new anti-inflammatory products for skin inflammatory disease such as AD and contact dermatitis, we produced the effective microorganism fermentation substance (EM-S) by fermentation of medicinal plants with effective microorganisms including photosynthetic bacteria, lactic acid bacteria and yeast, screened the effects of EM-S on NC/Nga model mice. Murine AD-like skin lesions were made by painting Dermatophagoides farinae (Df) extract. Topically applied EM-S significantly reduced clinical severity score, ear thickness and histological grade in AD-like NC/Nga mouse model by Df antigen sensitization. In addition, the serum IgE and Th2 chemokine levels (TARC/CCL17, MDC/CCL22 and CTACK/CCL27) were significantly reduced by EM-S. Futhermore, skin tissue expressions of Th2 chemokines were significantly reduced by EM-S. These results demonstrate that topical application of EM-S may be improve the AD-like skin lesion by suppressing IgE and Th2 chemokines.

Effect of Fertigation with Indigenous Microorganism and EM on Soil Chemical and Microbial Properties and Growth of Cherry Tomatoes (토착미생물과 EM 활용 액비 처리가 방울토마토의 토양 화학성과 미생물상 및 생장에 미치는 영향)

  • Choi, Hyun-Sug;Jung, Ji-Sik;Kuk, Yong-In;Choi, In-Young;Jung, Seok-Kyu
    • Journal of the Korea Organic Resources Recycling Association
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    • v.27 no.4
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    • pp.15-24
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    • 2019
  • The study was compared for soil chemical and microbial properties as well as growth of the cherry tomato (Lycopersicon esculentum var. cerasiforme) plants environmentally friendly gown for 3 years and 5 years, which had been fertigated with homemade liquid fertilizer (LF) with indigenous microorganism as an additional fertilizer. Treatment included LF with indigenous microorganism for 3 years (3-year IM-LF) and for 5 years (5-year IM-LF), with an effective microorganism for 10 years (EM-LF), which had been applied with 1,000 times of dilution in the farmhouse. IM-LF and EM-LF materials had increased pH pattern for 16 weeks, in particular for increase of 1.2 for EM-LF. IM-LF material contained slightly higher EC but similar level of 0.2 dS/m to EM-LF. For a pot experiment in the greenhouse, IM-LF treatment increased root dry weight of the cherry tomato plants. In the farmhouse experiment, IM-LF treatment increased to 7.5 of soil pH and 8.4 dS/m of EC, indicating high salt accumulation. EM-LF treatment increased to 62 g/kg of soil OM, which would have affected concentrations of macro essential nutrients, including T-N in the soil. However, the optimum soil chemical levels for growth of cherry tomato plants were observed on the IM-LF plots. EM-LF treatment increased number of bacteria and actinobacteria in the soil. EM-LF treatment increased concentrations of macro essential nutrients in the plants, except for P, with similar nutrient concentrations observed between 3-year IM-LF and 5-year IM-LF-treated plants. Leaf SPAD and PS II levels decreased in the plants treated with 3-year IM-LF. EM-LF treatment increased leaf width and length, number of leaves, canopy area, plant height, and stem diameter in the mid-term stage of growth, which were not significantly different between the treatments. EM-LF treated-plants had two times higher leaf dry weight than those of values observed on the IM-LF plants, which was the opposite result observed on the number of fruit.

Analysis of Erythromycin Resistance Gene in Pathogenic Bacteria Isolates from Cultured Olive flounder Paralichthys olivaceus in Jeju (제주지역 양식 넙치(Paralichthys olivaceus)에서 분리한 어병세균 내 Erythromycin 내성 유전자 분석)

  • Lee, Da Won;Jun, Lyu Jin;Kim, Seung Min;Jeong, Joon Bum
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.51 no.4
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    • pp.397-403
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    • 2018
  • We determined the resistance rates of pathogenic bacteria isolated from cultured olive flounder Paralichthys olivaceus to erythromycin (Em), antibiotic typically used in aquaculture and analyzed the genotypes of resistant bacteria using polymerase chain reaction (PCR). We isolated and utilized 160 isolates of Streptococcus parauberis, 1 of S. iniae, 66 of Edwardsiella tarda, 56 of Vibrio sp. and 23 of unidentified bacteria from presumed infected olive flounder from Jeju Island from March 2016 to October 2017. Of the 306 isolated strains, Em-resistant strains included 33 of S. parauberis, 39 of E. tarda and 2 of Vibrio sp. We conducted PCR to assess the resistance determination of Em-resistant strains. Five different types of Em-resistance genes were detected in the 74 Em-resistant strains: erm (A), erm (B), erm (C), mef (A) and mef (E); erm (A) and erm (B) were detected in 1 (3%) and 24 (72.7%) S. parauberis isolates, respectively. In E. tarda, erm (B) was detected in five isolates (12.8 %) and no Em-resistance genes were detected in the two Vibrio sp. isolates.

Studies of photosynthesis rate on the leaf temperature and light intensity in Soybean Cultivars (엽온 및 광강도에 따른 대두품종간의 광합성능력에 관한 연구)

  • 윤병성
    • Korean Journal of Plant Resources
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    • v.8 no.2
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    • pp.195-199
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    • 1995
  • This study was conducted to investigate the Net photosynthesis and respiration rates among the varieties of Soybean(Eunha, Pangsa and Paldal that have high yields) at various leaf temperature and light intensity at the stage of $V_5$. The relations between the Net photosynthesis rate and SLW(specific leaf weight) and chlorophyll content were also investigated. 1. Net photosynthesis rates at $25^{\circ}C$ were $21.5mgdm^{-2}h^{-1}$ in cv. Eunha, $20.2mgdm^{-2}h^{-1}$ in cv. Pangsa and $18.5mgdm^{-2}h^{-1}$ in cv. Paldal. 2. Most cultivars of Soybean showed the maximum rates of Net photosynthesis at $25^{\circ}C$, especially in cv. Eunha. Also Net photosynthesis rates differed depending on the leaf shape. Long leaf shape(cv. Eunha) was better than round leaf shape(cv. Paldal) in Net photosynthesis rate. 3. Respiration rates of leaves in Eunha, Pangse and Paldal were $0.56mgdm^{-2}h^{-1}$ at $15^{\circ}C$, $0.79mgdm^{-2}h^{-1}$ at $20^{\circ}C$ $1.15mgdm^{-2}h^{-1}$ at $25^{\circ}C$ and $1.37mgdm^{-2}h^{-1}$ at $30^{\circ}C$. 4. Specific leaf weight were $3.1mg/cm^2$ in Pangsa, $3.5mg/cm^2$ in Eunha and Paldal. No signlficant difference were showed in net photosynthesis rates and specific lear weight. 5. Leaf chlorophyll content were $2.48{\mu}g/gF.W.$ in Eunha, $2.19{\mu}g/gF.W.$ in Pangsa and $1.67{\mu}/g F.W.$ in Paldal. Significant difference were showed in Net photosynthesis rates and Leaf chlorophyll content. 6. The estimated compensation points at which net photosynthesis approached zero were $10{\mu}Em^{-2}s^{-1}$ in Eunha, Pangsa, and Palda at 1$5^{\circ}C$. The compensation point in cv. Eunha at $20^{\circ}C$ was $12P{\mu}Em^{-2}s{-1}$ while $13{\mu}Em^{-2}s{-1}$ in Pangsa and Palda. The compensation point in cv. Paldal at $25^{\circ}C$ was $18{\mu}Em^{-2}s{-1}$ while $16{\mu}Em^{-2}s{-1}$ in Eunha and Pangsa. The compensation point in cv. Palda at $30^{\circ}C$ was $23{\mu}Em^{-2}s{-1}$ Palda while $13{\mu}Em^{-2}s{-1}$ in Eunha and Pangsa.

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Recent Developments in Correlative Super-Resolution Fluorescence Microscopy and Electron Microscopy

  • Jeong, Dokyung;Kim, Doory
    • Molecules and Cells
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    • v.45 no.1
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    • pp.41-50
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    • 2022
  • The recently developed correlative super-resolution fluorescence microscopy (SRM) and electron microscopy (EM) is a hybrid technique that simultaneously obtains the spatial locations of specific molecules with SRM and the context of the cellular ultrastructure by EM. Although the combination of SRM and EM remains challenging owing to the incompatibility of samples prepared for these techniques, the increasing research attention on these methods has led to drastic improvements in their performances and resulted in wide applications. Here, we review the development of correlative SRM and EM (sCLEM) with a focus on the correlation of EM with different SRM techniques. We discuss the limitations of the integration of these two microscopy techniques and how these challenges can be addressed to improve the quality of correlative images. Finally, we address possible future improvements and advances in the continued development and wide application of sCLEM approaches.

Design of LNA Using EM simulator (EM 시뮬레이터를 이용한 LNA 설계)

  • Choi, Moon-Ho;Kim, Yeong-Seuk;Jung, Sung-Il;Lee, Han-Yeong;Jang, Seuk-Hwan;Lee, Jong-Arc
    • Proceedings of the IEEK Conference
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    • 2005.11a
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    • pp.873-876
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    • 2005
  • A low noise amplifier(LNA) using electro-magnetic field simulator is designed in standard 0.25um CMOS process. Integrated spiral inductor is simulated using EM field solver. Then LNA is simulated with active device, capacitor and simulated inductor by EM field solver. A S11 and S21 of -15.45dB and 17.8dB at 2.3GHz as simulation results was achieved. A Noise Figure is 2.92dB. And Measurements show a S11 and S21 of -12.4dB and 17.8dB at 2.3GHz. A Noise Figure of 3.3dB was achieved.

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A Performance Evaluation Model for TMN EMS with ATM Switching Systems (ATM교환기 TMN EMS의 성능 분석 모델)

  • 강병도;김태완;이길행;우왕돈
    • Journal of Korea Society of Industrial Information Systems
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    • v.4 no.3
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    • pp.44-51
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    • 1999
  • This paper presents the queuing model for evaluating the performance of TMN EMS with ATM switching systems. TMS for managing ATM switching systems has a hierarchical structure that consists of managers at the top level, agents at the middle, and ATM switching systems at bottom. A manager communicates with several agents, and an agent manages an ATM switching system We define a queuing model in order to predict the capacity and performance for managers in EMS. By evaluating the queuing model, we can predict the average service time and capacity of EMS.

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