• Title/Summary/Keyword: MEP

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Selective Toxicity of Insecticides to Plant-and Leaf-hoppers (멸구$\cdot$매미충의 종류에 따른 살충제의 선택독성)

  • Choi S. Y.;Lee H. R.
    • Korean journal of applied entomology
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    • v.15 no.1 s.26
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    • pp.1-6
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    • 1976
  • his study was conducted to investigate selective toxicity of several organophosphorous and carbamic insecticides against the small brown planthopper (Laodelphax striatellus), the white-backed planthopper (Sogatella furcifera), the brown planthopper (Nilaparvata lugensEugens), and the green rice leafhopper (Nephotetix cincticeps). The test insecticides were the organophosphoric insecticides, Diazinon$(34\%\; Ec.,\; 3\%\; G.),$ $MEP(Sumithion 50\%\; Ec.)$, and PAP(Elsan\; 47.5\%\; Ec.)$ and the carbamic insecticides. MPMC $(Meobal\; 50\%\;WP.)$, $BPMC(Bassa\; 50\%\; Ec.)$, and carbofuran $(Curaterr; 3\%\; G.)$. Toxicitiy for emulsion concentrates and wettable powders were evaluated by dipping method of rice seedlings in the laboratory and that for granulated insecticides evaluated by submerged application with potted plants in the greenhouse. In the test of contact toxicity by seedling dips, Diazinon MEP and PAP showed significantly low toxicity to the brown planthopper and MEP to the green rice leafhopper. In the test of submerged application, Carbofuran showed almost equal toxicity to the four species of the hoppers, but Diazinon was greatly less toxic to the brown planthopper. In general. the organophosphorous insecticides tested seemed to be selective in toxicity to the species of the hoppers, while the carbamic insecticides being less selective. The carbamic insecticides such as MPMC, BPMC and Carbofuran were almost equal in toxicity to the four species of the hoppers tested.

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Inheritance of Insecticide Resistance to Plant- and Leaf-hoppers Inherited Properties of MEP Resistance to Small Brown Plant-hopper (Laodelphax striatellus Fallen) (멸구 매미충류에 대한 약제저항성의 유전성에 관한 연구 I. 애멸구의 MEP제에 대한 약제저항성의 유전적 특성)

  • Shim Jai Wook
    • Korean journal of applied entomology
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    • v.17 no.2 s.35
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    • pp.75-80
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    • 1978
  • The study was conducted to determine the inherited properties of the MEB resistance to natural population of the small brown plant-hopper(Laodelphax striatelluss). The plant-hoppers were collected from the natural population of Naju area where the highest insecticide resistance of MEF to the green rice leaf hopper (Nephotettix cincticeps) have been examined in 1976. And Naju collections were crossed to the susceptible Lab stock to examine the MEP resistance in the $F_1,\;BC_1F_1\;and\;F_2$ and $F_2$ populations. Ail the data were analyzed by the probit method. There was a difference in MEP resistance between Naju collection and susceptible Lab stock, showing $LD_{50}$ value of the former was 0.0029ug/insect compared to 0.0008ug/insect for the later. The $LD_{50}$ values and dosage-mortality lines of the $F_1$ and $BC_1F_1$ tended to close their resistant parent. and it was considered that the character of the MEP resistance in the Naju collection of the small brown plant hopper was controlled by the genetic traits. However, $LD_{50}$ value and dosasage-mortality lines of the $F_2$ populations were intermediate to their parents, it would be conclusive that the trait will be governed by a interaction of the genes or factors rather than the single genic control.

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Consumer Problem Perceived by Urban Low-Income Consumers and the Related Factors (도시 저소득층의 소비자문제지각과 관련요인 연구)

  • 김성숙;이기춘
    • Journal of Families and Better Life
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    • v.7 no.2
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    • pp.31-43
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    • 1989
  • The purposes of this study were to identify the overall levels of consumer problem, consumer competencies and purchase pattern of urban low-income consumers and to examine the factors affecting the consumer problem and the subareas-market environment problem(MEP) and transaction relation problem(TRP). The related factors, that is, independent variables were competencies-related factors(consumption-oriented attitude, attitude on consumerism, consumer knowledge), purchase pattern-related factors (search pattern, credit pattern, peddler pattern) and socio-demorgraphic factors(age, educational level, family size). For this purpose, a survey was conducted by interview using questionaires on 198 homemakers that lived in the poor areas of Seoul. Statistics used for data analysis were Frequency Distribution, Percentile, Mean, Pearson's Correlation, One-way ANOVA, Scheffe-test, Breakdown and Multiple Classification Analysis. Major findings were as follows: 1) In the level of consum r problem were in the middle level and the level of MEP were higher than that of TRP. The attitude on consumption-orientation was so negative, while attitude on consumerism was positive. The level of consumer knowledge was in the middle level. The urban low-income consumers searched a little and depended on credit and peddler in the low level. 2) Consumer problem perceived by urban low-income consumers differed significantly according to attitude on consumerism, credit pattern, monthly charge of peddler purchase. The MEP depended on attitude on consumerism and monthly charge of peddler purchase, and the TRP was affected by credit pattern and attitude on consumerism. Resulting from MCA, the most influencial variable was attitude on consumerism and credit pattern in the consumer problem, and attitude on consumerism in the MEP, and credit pattenr in the TRP.

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Analysis of Meridians Energy change by Cupping Stimulation (부항자극에 대한 체표 경락.경혈의 생체에너지 변화 분석)

  • Kim, Soo-Byeong;Lee, Na-Ra;Kim, Young-Dae;Lim, Jong-Hyeon;Song, Gil-Soo;Jung, Byung-Jo;Lee, Yong-Heum
    • Korean Journal of Acupuncture
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    • v.27 no.4
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    • pp.49-57
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    • 2010
  • Objectives : The aim of this study is evaluation for significance of skin meridian-acupoints energy measurement system, and is verification of principle to measure the bio-ion charge on acupoints. Methods : To check a correlation between the MEP(Meridian Energy Potential) and bio-electric charge condition, ten acupoints(left/right BL meridian : BL13, BL15, BL18, BL20, BL23) were chosen. Based on basic theory concerning the upward trend of the bio-electric charge by cupping therapy, we measured MEP change before and after 600mmHg(80kPa) Negative pressure stimulation using cupping. Results : We could identify the correlation between MEP and the condition of bio-electric charge in acupoints. Also, we checked the balance or imbalance of left/right the MEP and unusual cases. Conclusions : We confirmed significance of proposed principle and meridian energy measurement system.

Development of the MEP Integration Test Environment for Surion (수리온 임무탑재체계의 통합시험 환경개발)

  • Kim, Yoo-Kyung;Kim, Myung-Chin;Choi, Won-Woo;Oh, Woo-Seop
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.39 no.7
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    • pp.666-673
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    • 2011
  • To perform effective integration test of avionics equipments, the importance of a setup for integration test environment has been increasing in recently developed aircraft. Especially, the development of integration test equipment is necessary for minimizing the development period and reliability of integration test. This paper treats the model development for optimal working of integration test after analyzing the characteristics of each MEP equipments for Surion(KUH). Models, whose main role is troubleshooting of equipment and simulation for missing equipments, consists of dynamic, behavior, and ICD models depending on the dynamic characteristics. Software test for both unit level and system level are performed to verify the model reliability. By conducting integration test using SIL, it is confirmed that the developed models are suitable for integration function test of the MEP system.

Development of a Multimedia Streaming System using MEP Based on MOST150 for Premium Express Buses (MOST150기반 MEP를 이용한 프리미엄 고속버스용 멀티미디어 스트리밍 시스템 개발)

  • Lee, Jae-kyu;Lee, Sang-yub;Cho, Hyun-joong
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.42 no.5
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    • pp.1049-1057
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    • 2017
  • In-vehicle multimedia systems are one of the most important factors in the automotive industry. Especially, multimedia systems are more important in advanced commercial vehicles such as premium express buses. In this paper, we proposed a multimedia streaming system architecture using MEP(MOST Ethernet Packets) for premium express buses based on MOST150. We have designed and implemented the prototype of proposed multimedia streaming system. We have designed a board based on i.MX6 to operate a proposed multimedia streaming system. The software has designed a multimedia system for premium express buses based on Android which is an open source platform. MOST(Media Oriented Systems Transport) is a high-speed multimedia network technology for in-vehicle multimedia system. The MOST network is able to manage up to 64 devices and ring topology is used basically. In addition, the MOST Network meets EMI(Electro-Magnetic Interference)/ EMC(Electro-Magnetic Compatibility) requirements because it uses plastic optical fibers(POF).

A Basic Study on Data Structure and Process of Point Cloud based on Terrestrial LiDAR for Guideline of Reverse Engineering of Architectural MEP (건축 MEP 역설계 지침을 위한 라이다 기반 포인트 클라우드 데이터 자료 구조 및 프로세스 기초 연구)

  • Kim, Ji-Eun;Park, Sang-Chul;Kang, Tae-Wook
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.8
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    • pp.5695-5706
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    • 2015
  • Recently adoption of BIM technology for building renovation and remodeling has been increased in construction industry. However most buildings have trouble in 2D drawing-based BIM modeling, because 2D drawings have not been updated real situations continually. Applying reverse engineering, this study analysed the point cloud data structure and the process for guideline of reverse engineering of architectural MEP, and deducted the relating considerations. To active usage of 3D scanning technique in domestic, the objective of this study is to analyze the point cloud data processing from real site with terrestrial LiDAR and the process from data gathering to data acquisition.

The Effect of Repetitive Transcranial Magnetic Stimulation-Induced Proprioceptive Deafferentation to Ipsilateral and Contralateral Motor Evoked Potentials (반복적 경두개자기자극을 통한 고유감각 구심로 차단이 동측 및 반대측 운동유발전위에 미치는 영향)

  • Kim, Min-Jeong;Lee, Kyoung-Min;Lee, Kwang-Woo
    • Annals of Clinical Neurophysiology
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    • v.8 no.2
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    • pp.158-162
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    • 2006
  • Background: It has been proposed that proprioceptive input can modulate neural excitability in both primary motor cortices (M1) simultaneously, although direct evidence for this is still lacking. Previous studies showed that proprioceptive accuracy of one hand is reduced after the application of one-Hz repetitive transcranial magnetic stimulation (rTMS) for 15 minutes over the contralateral somatosensory cortex. The aim of this study was to investigate the effect of rTMS-induced central proprioceptive deafferentation to excitability of both M1 as reflected in ipsilateral and contralateral motor evoked potentials (MEP). Methods: MEPs of both abductor pollicis bravis (APB) muscles were recorded using single-pulse TMS over right M1 in seven healthy subjects. Immediately after one-Hz rTMS was applied for 15 minutes over the right somatosensory cortex, the MEP measurement was repeated. The proprioceptive function of the left thumb was assessed, before and after rTMS, using a position-matching task. Results: There was an increase in ipsilateral MEP after the rTMS: whereas no MEPs were recorded on the ipsilateral hand before the rTMS, MEPs were recorded in both ipsilateral and contralateral hand in three of seven subjects. At the same time, the mean log amplitude was reduced and the mean latency was prolonged in the contralateral MEP. Conclusions: rTMS-induced central proprioceptive deafferentation reduces the MEP generation in the contralateral hand, and fascilitates that in the ipsilateral hand. A further study with a larger sample seems warranted to confirm this finding and to elucidate the neurophysiology underlying it.

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환경변이원 및 항변이원에 관한 연구: 살균제 Captan 및 유기인계 살충제 (Diazinon, MEP, Malathion 및 EPN)의 혼합처리가 E. coli $WP_2 S$ (uvrA-, trp-) 균주의 돌연변이와 생잔율로 미치는 영향

  • 조봉금
    • Environmental Mutagens and Carcinogens
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    • v.9 no.2
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    • pp.97-109
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    • 1989
  • 살균제 Captan, 살충제 Diazinon, MEP, Malathion 및 EPN 의 단독 처리 그리고 Captan 반복처리와 이들 살충제와 서로 다른 조합으로의 동시적, 시간적 복합처리가 E. coli WP2S(uvrA-, trp-) 균주의 돌연변이유발 빈도 및 생잔율에 미치는 영향을 검토하여 다음과 같은 결과를 얻었다. 1. Captan, Diazinon, MEP, Malathion, EPN 및 UV 의 동시적 복합처리는 이들 농약의 단독 처리에서 보다 E. coli WP2S (uvrA-, trp-)균주의 돌연변이유발빈도가 높았고 이들 농약의 단독처리효과를 합한 가산적 영향으로 나타났으며, 동일조건하에서 이들 농약의 처리농도를 배로 늘렸을 때는 배가효과를 보였으나 이 균주의 증가된 돌연변이 유발빈도는 cinnamaldehyde 30ng 및 60ng/ml 그리고 tannic acid 50ng/ml 배지로 각각 첨가했을 때 감소되었고 생잔율은 증가되었다.

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Case Study of Coordinate Measurement during Construction of Long-Span Irregular Curved Roof Layers (장경간 비정형 곡면 지붕층의 시공중 좌표 계측 사례 연구)

  • Shim, Hak-Bo;Seok, Won-Kyun;Park, Soon-Jeon
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2019.11a
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    • pp.14-15
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    • 2019
  • In this paper, it was tried to prove the possibility and effect of coordinate measurement by using MEP layout equipment at the construction stage, and to propose a method to improve measurement accuracy during construction. For this study, the passenger terminal site, which is a long span structure, was selected and compared with three dimensional CAD drawings and construction measurement results using MEP layout equipment for the precise construction of long-span irregular curved roof layers. As a result, it was found that it is possible to construct three-dimensional curved roof layers using MEP layout equipment through measurement and analysis.

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