• Title/Summary/Keyword: %ADI

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고성능 저가형 ADuC84x의 구조 및 특성

  • 최명규
    • KIPE Magazine
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    • v.9 no.3
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    • pp.23-27
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    • 2004
  • ADuC84x는 OP-AMP 아날로그-디지털 컨버터(ADC), 디지털-아날로그 컨버터(DAC)로 유명한 ADI(아날로그 디바이스사)의 8비트 임베디드 마이크로콘트롤러인 마이크로컨버터이다. ADI의 마이크로컨버터 ADuC84x는 산업용 정밀제어 및 계측용 애플리케이션의 고성능 신호처리를 위해 설계된 프로그래머블 고속 임베디드 마이크로콘트롤러이다.(중략)

Human Exposure Assessment of Pesticide Residues in Cattle by-product Fed the Rice Straw (농약이 잔류된 볏짚조사료을 급여한 소의 부산물 섭취에 따른 인체노출평가)

  • Gil, Geun-Hwan;Paik, Min-Kyoung;Kim, Jin-Bae;Kim, Chan-Sub;Son, Kyung-Ae;Im, Geon-Jae;Ihm, Yang-Bin;Lee, Kyu-Seung
    • The Korean Journal of Pesticide Science
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    • v.17 no.4
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    • pp.249-255
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    • 2013
  • The objective of this study was to investigate the exposure assessment of Korean consumers to edifenphos and tricyclazole in cattle product fed the rice straw, using a probabilistic approach. We used tricyclazole and edifenphos residue data in rice straw reported by National Academy of Agricultural Science (NAAS) for the 1998, 1999, 2001 and 2010 monitoring study and National Agricultural Products Quality Management Service (NAQS) for 2009 monitoring study. The mean exposures of edifenphos and tricyclazole for all of Korean consumers were 0.027% and 0.0006% of ADI and $99%^{th}$ percentile exposures were 0.034% and 0.0007% of ADI respectively. The group of 1~6 years old consumers has the lowest exposure of edifenphos and tricyclazole. The group of 19~29 years old consumers has the highest exposure of edifenphos and tricyclazole.

Inhibition of LPS-induced nitric oxide production by transduced Tat-arginine deiminase fusion protein in Raw 264.7 cells

  • Lee, Min-Jung;Kim, Dae-Won;Lee, Yeom-Pyo;Jeong, Hoon-Jae;Kang, Hye-Won;Shin, Min-Jae;Sohn, Eun-Jeong;Kim, Mi-Jin;Jang, Sang-Ho;Kang, Tae-Cheon;Won, Moo-Ho;Min, Bon-Hong;Cho, Sung-Woo;Lee, Kil-Soo;Park, Jin-Seu;Eum, Won-Sik;Choi, Soo-Young
    • BMB Reports
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    • v.42 no.5
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    • pp.286-292
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    • 2009
  • Arginine deiminase (ADI), an arginine-degrading enzyme, has anti-proliferative and anti-tumor activities and is capable of inhibiting the production of nitric oxide (NO). Modulation of nitric oxide (NO) production is considered a promising approach for the treatment of various diseases including cancer, inflammation and neuronal disorders. In this study, an ADI gene was fused with an HIV-1 Tat peptide in a bacterial expression vector to produce an genetic in-frame Tat-ADI fusion protein. When added exogenously to the culture media, the expressed and purified Tat-ADI fusion proteins were efficiently transduced into macrophage Raw 264.7 cells in a time- and dose-dependent manner. Furthermore, transduced Tat-ADI fusion proteins markedly increased cell viability in cells treated with lipopolysaccharide (LPS). This increase in viability was mediated by an inhibition of NO production. These results suggest that this Tat-ADI fusion protein can be used in protein therapies of NO-related disorders such as cancer, inflammation and neuronal diseases.

Assessment of Estimated Daily Intakes of Preservatives in the Korean Population (한국인의 식이를 통한 보존료의 일일추정섭취량과 안전성평가)

  • Choi, Sung-Hee;Lee, Jee-Yeon;Park, Eun-Young;Won, Jun;Hong, Ki Kyoung;Moon, Gui-Im;Kim, Min-Sik;Hong, Jin-Hwan
    • Korean Journal of Food Science and Technology
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    • v.40 no.5
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    • pp.503-509
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    • 2008
  • In this study, the daily intake of preservatives in the Korean population was estimated, using data from national health and nutrition studies regarding the concentration of preservatives in each type of food, food intake by sex, age group, and weight. The level of safety of these preservatives was evaluated via comparisons with the acceptable daily intake (ADI) data established by the Joint FAO/WHO expert committee on food additives (JECFA). The Estimated daily intake (EDI) of sorbic acid is 495.85 ${\mu}g$/kg bw, benzoic acid is 215.34 ${\mu}g$/kg bw and parahydroxybenzoate is 5.01 ${\mu}g$/kg bw per day each. Their percentages in relation to ADI are 2, 4.3, and 0.1%, respectively. The comparatively high-consuming groups were taking sorbic acid 1,012.06 ${\mu}g$/kg bw, benzoic acid 229.56 ${\mu}g$/kg bw, and parahydroxybenzoate 11.58 ${\mu}g$/kg bw per day, and their intake levels as a percentage of ADI were 4.1, 4.6, 0.1%, all within safe levels. Males were found to have taken more benzoic acid than women, whereas we detected no sighificant differences in the intakes of sorbic acid and parahydroxybenzoate between males and females. The EDI of sorbic acid, benzoic acid, and parahydroxybenzoate were lower than the ADI in all age groups studied.

Establishment of 22 Pesticide MRLs in Agricultural Products based on Risk Assessment (위해성평가에 근거한 농산물 중 22종 농약의 잔류허용기준설정)

  • Chung, Hyung-Wook;Ha, Yong-Geun;Im, Moo-Hyeog;Shin, Ji-Eun;Do, Jung-Ah;Oh, Jae-Ho;Cho, Jae-Ho;Kwon, Ki-Sung;Park, Sun-Hee
    • Korean Journal of Environmental Agriculture
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    • v.30 no.2
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    • pp.166-172
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    • 2011
  • BACKGROUND: Food Sanitary Act establishes Maximum Residue Limits (MRLs) of pesticides in food that are newly registered and used per each quarter, as stipulated by Agro-chemical Control Act. Current Food Code contains the MRLs for a total of 418 pesticides in 184 food types. METHODS AND RESULTS: National MRLs for pesticides have been established by based on scientific data of good agricultural practice, acceptable daily intake (ADI), food intake, average body weight and others. MRLs for pesticides are generally set under the principle that theoretical maximum daily intake (TMDI) are always below ADI. As results, 27 MRLs in agricultural products were newly proposed for 22 pesticides (fungicide: azoxystrobin, fludioxonil, fluquinconazole, flusilazole, iprovalicarb, kresoxim-methyl, mandipropamid, metconazole, pyraclostrobin, tebuconazole, triflumizole, etc., Insecticide: dinotefuran, flubendiamide, indoxacarb, cyhalothrin, spinetoram, thiacloprid, thiamethoxam, metaflumizone, etc., Acaricide(miticide): cyenopyrafen, lufenuron) in 2010. CONCLUSION(s): There is no intake concerns for establishment of pesticide MRLs on foods in this time. Because the ratio of theoretical maximum daily intake (TMDI) are set below that of ADI.

Monitoring and Safety Assessment of Pesticide Residues on Agricultural Products Sold via Online Websites (온라인 판매 농산물 잔류농약 실태 및 안전성 평가)

  • Park, Duck Woong;Kim, Ae Gyeong;Kim, Tae Sun;Yang, Yong Shik;Kim, Gwang Gon;Chang, Gil Sik;Ha, Dong Ryong;Kim, Eun Sun;Cho, Bae Sik
    • The Korean Journal of Pesticide Science
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    • v.19 no.1
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    • pp.22-31
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    • 2015
  • This study was carried out to monitor the current status of pesticide residues in selling agricultural products via online and assessed their safety in 2014. A total of 124 samples were purchased six times from March to August 2014 twenty online shopping malls randomly. These samples were analysed 208 pesticides by multiresidue method using a GC-ECD/NPD and a LC-MS/MS and confirmed by a GC-MSD. As a result of analysis, residual pesticides samples were 11 (8.9%) such as leek, young radish, welsh onion etc, of which 2 samples (1.6%) such as sesame bud (Chlorothalonil), artemisia (Chlorpyrifos) were violated Korea Maximum Residue limits (MRLs). 11 kinds of pesticides (19 times) were detected in 11 samples. Risk assessment evaluated human health exposure with the ratio of EDI (Estimated daily intake) to ADI (Acceptable daily intake) of pesticides detected. %ADI (the ratios of EDI to ADI) were 0.04~95.70% and some samples represented a fairly dangerous levels. In particular, Chlorothalonil in the sesame bud was shown as a significant risk close to 100% of %ADI. Accordingly, it is recommended to strengthen a safety check on agricultural products in online sales.

The cutting resistance and Ae signal characteristics on cutting condition in dilling for ADI materials (ADI 재의 드릴 가공 시 가공조건에 따른 절삭저항 및 AE신호 특성)

  • 유경곤
    • Journal of the Korean Society of Manufacturing Technology Engineers
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    • v.7 no.6
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    • pp.90-96
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    • 1998
  • The ductile cast iron is austempered at 300, 350 and 40$0^{\circ}C$ temperature in order to investigate the basic factors for monitoring drill wear in automatic production process, and cutting force and AE RMS signals are measured with changing cutting condition for ADI(Austempered Ductile Cast Iron) with different mechanical properties. The signals of cutting force were influenced by cutting speed and feedrate greatly. On the other hand AE RMS signals are influenced by cutting speed where as it is not related with feedrate. As the depth of drilling increases, cutting force shows a slow increase and the value of AE RMS increases until the range of h/d=4. But over the range it increases greatly due to an amount of chip discharge and friction with inner wall of drilling hole, etc. As the drill diameter increases at a constant depth of drilling. Cutting force increases linearly, but the level of AE RMS does not increases linearly due to circumferential velocity and great influence of h/d.

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Numerical Analysis of Three-Dimensional Compressible Viscous Flow Field in Turbine Cascade (터빈 익렬내부의 3차원 압축성 점성유동장의 수치해석)

  • 정희택;백제현
    • Transactions of the Korean Society of Mechanical Engineers
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    • v.16 no.10
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    • pp.1915-1927
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    • 1992
  • A three-dimensional Navier-Stokes code has been developed for analysis of viscous flows through turbomachinery blade rows or other internal passages. The Navier-Stokes equations are written in a cartesian coordinate system, then mapped to a general body-fitted coordinate system. Streamwise viscous terms are neglected and turbulent effects are modeled using the baldwin-Lomax model. Equations are discretized using finite difference method on the stacked C-type grids and solved using LU-ADI decomposition scheme. calculations are made for a two-dimensional cascade in a transonic wind-tunnel to see the infuence of the endwalls. The flow pattern of the three-dimensional flow near the endwall is found to be different from that of the two-dimensional flow due to the existence of the endwalls.

Effect of Quenching Medium on the Mechanical Properties of ADI Treated GCD 50 (GCD 50의 ADI처리시 기계적 성질에 미치는 퀜칭 매질의 영향)

  • Kim, H.G.;Oh, I.S.;Kim, H.J.;Shin, K.G.
    • Journal of the Korean Society for Heat Treatment
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    • v.21 no.3
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    • pp.137-143
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    • 2008
  • Effect of quenching medium on the mechanical properties of ductil iron GCD 50 has been investigated using ADI treated specimens. The specimens have been austenitized at $900^{\circ}C$ for 2 hours, followed by controlled cooling to $800^{\circ}C$ under the cooling rate of $0.05^{\circ}C/sec$, then austempered at $380^{\circ}C$, $330^{\circ}C$, $280^{\circ}C$ and $230^{\circ}C$ for 1 hour. The specimens treated in the salt of 5% water were found to have higher tensile strength than that of the normal salt bath. Elongation and impact energy increased in proportion to the increase of retained austenite volume fraction. The increase of cooling rate of the salt by the addition of 5% water to the salt resulted in the increase of retained austenite volume fraction and the formation of fine bainitic ferrite.

Convergence Study of the Multigrid Navier-Stokes Simulation : II. Implicit Preconditioners (다중 격자 Navier-Stokes 해석을 위한 수렴 특성 연구 : II. 내재적 예조건자)

  • Kim, Yoon-Sik;Kwon, Jang-Hyuk
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.32 no.6
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    • pp.1-8
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    • 2004
  • The objective of this study is convergence acceleration of multigrid Navier-Stokes solvers. This study has been performed to enhance the performance of preconditioned multi-stage time stepping method which is a popular smoother for the multigrid Navier-Stokes solvers. Comparative study on the convergence characteristics of the ADI and DDADI preconditioners has been conducted. It is shown that the DDADI preconditioner has better performance than the ADI by numerical tests on the 2-D compressible turbulent flows past airfoils. The Spalart-Allmaras turbulent model and the Baldwin-Lomax turbulent model have been compared with the multigrid calculations.