• Title/Summary/Keyword: SFI

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Bayesian estimates of genetic parameters of non-return rate and success in first insemination in Japanese Black cattle

  • Setiaji, Asep;Arakaki, Daichi;Oikawa, Takuro
    • Animal Bioscience
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    • v.34 no.7
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    • pp.1100-1104
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    • 2021
  • Objective: The objective of present study was to estimate heritability of non-return rate (NRR) and success of first insemination (SFI) by using the Bayesian approach with Gibbs sampling. Methods: Heifer Traits were denoted as NRR-h and SFI-h, and cow traits as NRR-c and SFI-c. The variance covariance components were estimated using threshold model under Bayesian procedures THRGIBBS1F90. Results: The SFI was more relevant to evaluating success of insemination because a high percentage of animals that demonstrated no return did not successfully conceive in NRR. Estimated heritability of NRR and SFI in heifers were 0.032 and 0.039 and the corresponding estimates for cows were 0.020 and 0.027. The model showed low values of Geweke (p-value ranging between 0.012 and 0.018) and a low Monte Carlo chain error, indicating that the amount of a posteriori for the heritability estimate was valid for binary traits. Genetic correlation between the same traits among heifers and cows by using the two-trait threshold model were low, 0.485 and 0.591 for NRR and SFI, respectively. High genetic correlations were observed between NRR-h and SFI-h (0.922) and between NRR-c and SFI-c (0.954). Conclusion: SFI showed slightly higher heritability than NRR but the two traits are genetically correlated. Based on this result, both two could be used for early indicator for evaluate the capacity of cows to conceive.

Acceleration of Simulated Fault Injection Using a Checkpoint Forwarding Technique

  • Na, Jongwhoa;Lee, Dongwoo
    • ETRI Journal
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    • v.39 no.4
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    • pp.605-613
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    • 2017
  • Simulated fault injection (SFI) is widely used to assess the effectiveness of fault tolerance mechanisms in safety-critical embedded systems (SCESs) because of its advantages such as controllability and observability. However, the long test time of SFI due to the large number of test cases and the complex simulation models of modern SCESs has been identified as a limiting factor. We present a method that can accelerate an SFI tool using a checkpoint forwarding (CF) technique. To evaluate the performance of CF-based SFI (CF-SFI), we have developed a CF mechanism using Verilog fault-injection tools and two systems under test (SUT): a single-core-based co-simulation model and a triple modular redundant co-simulation model. Both systems use the Verilog simulation model of the OpenRISC 1200 processor and can execute the embedded benchmarks from MiBench. We investigate the effectiveness of the CF mechanism and evaluate the two SUTs by measuring the test time as well as the failure rates. Compared to the SFI with no CF mechanism, the proposed CF-SFI approach reduces the test time of the two SUTs by 29%-45%.

Characteristics of protease inhibitor produced by streptomyces fradiae SMF9

  • Kim, Hyoung-Tae;Suh, Joo-Won;Lee, Key-Joon
    • Journal of Microbiology
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    • v.33 no.2
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    • pp.103-108
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    • 1995
  • Streptomyces fradiae protease inhibitor (SFI) was purified effectively by preparative isoelectric focusing and hydroxyapatite chromatography. The molecular weight of SFI was estimated to be 1.7 kDa by SDS-PAGE and 1.8 kDa by molecular sieving HPLC. One hundred and sixty amino acid residues were determined from which molecular weight of SFI was calculated to be 17.054 Da and carbohydrate residue was not detected. SFI was calculated to be 17,064 Da and carbohydrate residue was not detected. SFI was a monomeric protein with two reactive sits, of which isoelectric point was pH 4.1. N-terminal amino acid sequence of SFI had homology with SSI (Streptomyces subsilisin inhibitor) and other protease inhibitors produced by Streptomyces.

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Solvent Extraction of Platinum Group Metals from the leach Liquor of Spent Automotive Catalyst (자동차(自動車) 폐촉매(廢觸媒)의 침출액(浸出液)으로부터 백금족(白金族) 금속(金屬)의 용매추출(溶媒抽出))

  • Kim, Mi-Ae;Lee, Jae-Chun;Kim, Chi-Kwon;Kim, Min-Seuk;Kim, Byung-Su;Yoo, Kyoung-Keun
    • Resources Recycling
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    • v.15 no.5
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    • pp.3-10
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    • 2006
  • The solvent extraction for the separation of platinum group metals from the leach liquor of spent automotive catalysts has been studied. Tri-n-butyl phosphate (TBP), tri-n-octylamine (TOA) and di-n-hexyl sulfide (DHS) were used as extractants and kerosene as a diluent. The extraction behavior of platinum, palladium and rhodium has been investigated as functions of different kinds of extractants and their concentrations. In addition, the extraction behavior of the major metal impurities such as cerium, lead, iron, magnesium and aluminum has been investigated. Platinum and palladium were extracted with TBP. And platinum, palladium and rhodium were extracted with TOA. Platinum was co-extracted with palladium into the organic phase by solvent extraction using SFI-6 of DHS extractant, but only palladium was selectively extracted with SFI-6R. The selective extraction of palladium with SFI-6R was found better than that with SFI-6, but the kinetics of extraction with SFI-6R was found poor in comparison to SFI-6. The metal impurities extracted simultaneously during the extraction of platinum group metals should be removed in scrubbing and stripping processes. A suitable process has been proposed for the separation of platinum group metals from the leach liquor of spent automotive catalysts. Initially palladium was extracted with SFI-6R, followed by the separation of platinum with TBP or TOA leaving rhodium in the raffinate.

Slope Failure Index System Based on the Behavior Characteristics : SFi-system (거동 특성에 따른 사면 파괴 지수 시스템 : SFi-system)

  • 윤운상;정의진;최재원;김정환;김원영;김춘식
    • Journal of the Korean Geotechnical Society
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    • v.18 no.2
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    • pp.23-37
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    • 2002
  • Failure of the cut slope is triggered by combination of internal and extemal failure factors. Internal failure factors are related to geological and geometrical conditions of slope itself, and natural and/or artificial loadings on slope can be the external failure factors. Influences of these failure factors show different intensity according to the ground condition and are controlled by behavior characters of the slope. In this study, the soil depth ratio(SR), block size ratio(BR) and rock strength are used as the criteria to divide ground condition based on behavior characteristics. Ground condition of the slope is divided into discontinuous jointed rock mass and continuos soil-like mass, highly fractured rock mass and massive rock mass by the criteria(SR and BR). The SFi-system is a rating system to determine the slope failure index(SFi) by analyzing internal and external factors based on classification of the ground condition. The results of the SFi-system application to the real cut slopes show close relationship between the SFi value and potential or dimension of the failure. Therefore, the SFi-system can be used as a useful tool to predict and analyze the characteristic of the slope failure.

The simulated floating inductor using of fully-differential OTAs and its application to a ladder-type third-order elliptic low-pass filter

  • Lee, Ju-Chan;Lee, Jang-Hyuck;Park, Hee-Jong;Shin, Hee-Jong;Park, Ji-Mann;Cha, Hyeong-Woo;Chung, Won-Sup
    • Proceedings of the IEEK Conference
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    • pp.159-162
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    • 2000
  • Novel simulated floating inductor (SFI) using fully-differential operational transconductance amplifier (FOTA) is presented. The SFI only consists of two FOTA and a capacitor. A ladder-type third-order elliptic low-pass filter is also presented for the SFI’s application. The theory of operations described and the simulation results are used to verify theoretical predictions. The SFI shows close agreement between predicted behavior and simulation performance. The simulation results that the SFI have The temperature coefficient of-179 ppm/$^{\circ}C$ and Q factor of 120 at 200kHz at supply voltage ${\pm}$5 V.

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Effect of $SO_2$ on Leaf Tip Blight of Ginkgo biloba caused by Coniothyrium sp. (은행나무의 잎끝마름병에 미치는 $SO_2$ 의 영향)

  • Kang, Yun-Jie;Park, So-Hong;Lee, Du-Hyung;Bae, Gong-Young
    • Korean Journal of Environmental Agriculture
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    • v.18 no.2
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    • pp.179-184
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    • 1999
  • To examine the relationship between air pollution and occurrence of disease in plants, we investigated the alteration of physiology and biochemistry of Ginkgo biloba by inoculating with Coniothyrium sp. and fumigating with 0.1 ${\mu}l/l\;SO_{2-}$ Visual damage did not appear but photosynthesis, $CO_2$ use efficiency(CUE) and water use efficiency(WUE) were reduced when G. biloba was exposed to $SO_{2-}$for 7days (8 hours a day). When inoculated with Coniothyrium sp., the seventies of damage in G. biloba showed a threefold difference between $SO_{2-}$ treatment (SI) and $SO_{2-}$ free treatment (SFI) at day 42 from initial inoculation. Little difference was observed in sugar contents that may be used pathogens feed, among control, SFI and SI. In spite of the reduction in photosynthetic rate, sugar contents and CUE were maintained. WUE was enhanced 13% more at SI than SFI. The $CO_2$fixation boosted because of enhanced WUE, and thus sugar synthesis was not affected. In addition, sugar transport seems to be retarded for some internal alteration. Consequently, the severity of SI was more serious than that of SFI because Coniothyrium sp. easily invades into the physical texture of G. biloba weakened by $SO_2$ fumigation and because sugar was accumulated in leaves of G. biloba.

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XML Document Filtering based on Segments (세그먼트 기반의 XML 문서 필터링)

  • Kwon, Joon-Ho;Rao, Praveen;Moon, Bong-Ki;Lee, Suk-Ho
    • Journal of KIISE:Databases
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    • v.35 no.4
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    • pp.368-378
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    • 2008
  • In recent years, publish-subscribe (pub-sub) systems based on XML document filtering have received much attention. In a typical pub-sub system, subscribed users specify their interest in profiles expressed in the XPath language, and each new content is matched against the user profiles so that the content is delivered to only the interested subscribers. As the number of subscribed users and their profiles can grow very large, the scalability of the system is critical to the success of pub-sub services. In this paper, we propose a fast and scalable XML filtering system called SFiST which is an extension of the FiST system. Sharable segments are extracted from twig patterns and stored into the hash-based Segment Table in SFiST system. Segments are used to represent user profiles as Terse Sequences and stored in the Compact Segment Index during filtering. Our experimental study shows that SFiST system has better performance than FiST system in terms of filtering time and memory usage.

Full mouth rehabilitation with maxillary implant overdenture using prefabricated bar attachment system: a case report (기성품 바 어태치먼트 시스템인 SFI bar를 이용한 피개의치 전악수복 증례)

  • Shin, Eun-Jung;Joo, Han-Sung;Vang, Mong-Sook;Yang, Hong-So;Park, Sang-Won;Lim, Hyun-Pil;Yun, Kwi-Dug
    • The Journal of Korean Academy of Prosthodontics
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    • v.52 no.4
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    • pp.331-337
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    • 2014
  • In conventional bar- and clip-retained overdentures, all errors during impression making and cast fabrication result in non-passive fit of bars. SFI bar is prefabricated and assembled in the patient's mouth without the use of soldering, laser welding or conventional bonding techniques, thus reducing stress transmission to, bone loss around the implants and leading to fewer errors and lower costs. A clinical case will be presented below to demonstrate the use of the SFI Bar (Stress Free on Implant Bar) to restore an severe atrophy edentulous maxilla. In this case, no lateral stress could be applied to the implants due to the telescopic design of the bar joints. However, periodic recall check is necessary and long-term clinical results are required.

Comparison of Solid Fat Index and Triacylglycerol Composition of the Blends from Natural Vegetable Fats and Palm Stearin Fraction (천연 식물고체지와 팜스테아린 분별유 혼합물의 Solid Fat Index 및 Triacylglycerol 조성 비교)

  • Sung, Min-Hye;Hong, Soon-Taek;Lee, Ki-Teak
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.40 no.10
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    • pp.1438-1446
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    • 2011
  • Palmitoyl-oleoyl-oleoyl (POO) and palmitoyl-oleoyl-palmitoyl triacylglycerol rich fraction (PSL) was obtained from the acetone fractionation of palm stearin. The fatty acid composition (total and positional), tri-acylglycerol species, and solid fat index (SFI) were compared among the blends of natural vegetable fats (sal fat, illipe fat, kokum fat, shea stearin fat, and shea butter) and PSL with different ratios (50:50, 60:40, 65:35, 70:30). In total fatty acid composition of PSL, palmitic, oleic, and linoleic acids were the major fatty acids, whereas in natural vegetable fats stearic and palmitic acids were the major fatty acids. Moreover, oleic acid was a major fatty acid at sn-2 position in sal fat, illipe fat, and kokum fat. The TAG species was analyzed by reversed-phase HPLC, from which the PN value ranged from 46 to 54. When natural vegetable fats and PSL were blended with different ratios, decreasing the amount of PSL resulted in increasing SFI in most cases. Among blends, the SFI of sal fat and PSL were most similar to commercial cocoa butter equivalent (CBE).