• Title/Summary/Keyword: SUR2

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Analgesic and antiinflammatory activity of Alstonia macrophylla and Mallotus peltatus leaf extracts: Two popular ethnomedicines of Onge, a Negrito tribe of little Andaman

  • Chattopadhyay, Debprasad;Arunachalam, G.;Sur, T.K.;Bhattacharya, S.K.;Mandal, Asit B.
    • Advances in Traditional Medicine
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    • v.5 no.2
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    • pp.124-136
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    • 2005
  • Two popular ethnomedicines of the Onge, a Negrito tribe of Andaman Islands, were evaluated for analgesic and antiinflammatory activity. The methanol extract as well as the different fractions of methanol extract of both Alstonia macrophylla and Mallotus peltatus leaves were studied using Swiss albino mice and Wistar albino rats. Acetic acid induced writhing, Tail flick and Tail immersion; Carrageenin- and Dextran-induced paw oedema tests were used. Dose-dependent analgesic and antiinflammatory activity were demonstrated for both methanol leaf extracts as well as fractions. Results were highly comparable with that of the standard drug pethidine.

Mössbauer Study of the Dynamics in BaFe12O19 Single Crystals

  • Choi, J.W.;Sur, J.C.;Lim, Jung-Tae;Kim, Chin-Mo;Kim, Chul-Sung
    • Journal of Magnetics
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    • v.17 no.1
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    • pp.6-8
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    • 2012
  • M$\ddot{o}$ssbauer spectra of hexagonal $BaFe_{12}O_{19}$ single crystals were studied at various temperatures (4-300 K). It was found that the spin states in Fe atoms were parallel to the ${\gamma}$-ray's direction into a single crystal along the caxis. The location of the Fe ion in the 2b site is unusual in an oxide structure and has strong anisotropic lattice vibrations. Moreover, at room temperature, the zero absorption lines of the Fe ions at the 2b site were observed due to fast diffusion motion in a double well atomic potential. The two Fe ions of the single crystal mainly enter into the sites in the mirror plane of the trigonalbipyramidal structure.

Anti-inflammatory Activity of Detoxified Bacterial Strains in Wistar Rats

  • Sur, Tapas Kumar;Auddy, Biswajit;Mitra, Susil Kumar;Sarkar, Dipak Kumar;Bhattacharyya, Dipankar
    • Natural Product Sciences
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    • v.16 no.3
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    • pp.159-163
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    • 2010
  • A mixture of several detoxified bacterial strains ($Sterodin^{(R)}$) has been studied for anti-inflammatory effect in Wistar rats on carrageenin, dextran and prostaglandin $E_1$ ($PGE_1$) induced edema in acute model and cotton pellet and carrageenin induced sub-acute model, while, Freund's adjuvant induced chronic model. The bacterial strains showed strong inhibitory activity in acute, sub-acute and chronic models of inflammation. Further, it reduced ${\alpha}1$ acid glycoprotein and ${\alpha}2$ macroglobulin levels in serum and prostaglandin $E_2$ in inflamed paw. These results indicated that the bacterial strains probably act through prostaglandin mediatory pathways and may be useful in treatment of inflammation.

2D ANALYTICAL MODEL OF THE FSW WELD ZONE AND FINITE ELEMENT HEAT TRANSFER ANALYSIS

  • S.R, Rajesh;Bang, Han-Sur;Kim, Heung-Ju;Bang, Hee-Seon
    • Proceedings of the KWS Conference
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    • 2005.11a
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    • pp.135-137
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    • 2005
  • The body of the work covers FSW welding of Al6061 and its thermal distribution based on an analytical model for the heat input at the probe/matrix boundary of Al plates and FSW tool due to the effect of combined translation and rotational motion of the tool pin and shoulder. Finally the 2D- finite element heat transfer analysis program has been used to plot the heat distribution at the Friction Stir Welded joint in Al 6061 plate. The work concludes that the heat distribution result obtained from FE analysis has a reasonable agreement with the experimentally measured values.

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A Shape Finding and Cutting Pattern Determination for Membrane Structures (막 구조물에 관한 형상 탐색과 재단도 결정법)

  • Choi, Ho;Lee, Jang-Bog;Kim, Jae-Yeol;Sur, Sam-Uel;Kwon, Taek-Jin
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 1998.04a
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    • pp.175-182
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    • 1998
  • The object of this study is shape finding and cutting pattern generation of membrane structures under the following assumptions : (1) material is linearly elastic (2) stress state is plane stress. Cable and membrane structures should introduce the nonlinear analysis considering geometric nonlinearity because these structures deform largely under the external loads. The analysis procedure is consisted of three steps considering geometric nonlinearity unlike any other structures. First step is the shape finding analysis to determine the initial equilibrium shape. Second step is the stress-deformation analysis to investigate the behaviors of structures under various external loads. Once a satisfactory shape has been found, a cutting pattern based on the shape finding analysis may be generated from the view point of construction. In this paper, (1) shape finding analysis formulation and an example, (2) cutting pattern determination procedure using weighted least-square minimization flattening method and some results are presented.

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Studies on the Detergency Characteristics of Free Fatty Acid in Oily Soil (Part II. Detergency of Particulate Soil) (오염중의 유리지방산이 세척성에 미치는 영향 제2보 고형오염의 세척성)

  • Kim Eun Ok;Kim Sung Reon
    • Journal of the Korean Society of Clothing and Textiles
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    • v.4 no.1_2
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    • pp.43-48
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    • 1980
  • The effect of free fatty acid in fatty soil on the detergency of particulate soil was investigated. Cotton lawn fabric was soiled with the mixture of polmitic acid, hydrogenated fat, paraffin oil and iron oxide black altering the contents of palmitic acid and was laundered with different sur-fastants under various temperature and alkalinity. The rate of soil removal was estimated by means of the spectoometic analysis of iron on the fabric before and after washing. The results of dergency were compared those obtained by reflactance and K/S value from Kubelka-Munk equation which were derived from reflactance measurements.

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Efficient Multi-receiver Identity-Based Encryption Scheme from Bilinear Pairing (Bilinear Pairing을 이용한 효율적인 신원기반 다중 수신자 암호 기법)

  • Jung, Chae-Duk;Yoon, Suk-Bong;Sur, Chul;Rhee, Kyung-Hyune
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.11 no.2
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    • pp.301-308
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    • 2007
  • In this paper, we propose a new efficient multi-receiver identity-based encryption scheme from Bilinear Pairing. The proposed scheme eliminates pairing computation to encrypt a message for multiple receivers and only need one pairing computation to decrypt the ciphertext. Moreover, we show how to properly transform our scheme into a highly efficient stateless public key broadcast encryption scheme based on the subset-cover framework.

Inclusive Growth Analysis in Central Sulawesi, The Eastern Province of Indonesia 2015-2019

  • PRAKOSO, Andhika Dimas;AGUSTINA, Neli
    • Asian Journal of Business Environment
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    • v.12 no.2
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    • pp.1-12
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    • 2022
  • Purpose: This study aims to analyze the inclusive growth in Central Sulawesi Province, an eastern province of Indonesia, up to the districts/cities level. The inclusive growth is analyzed by using Ramos, Ranieri, and Lammens' index that has three indicators which are employment, poverty, and income inequality. Research design, data, and methodology: This study uses panel data of 13 districts/cities in Central Sulawesi Province from 2015 to 2019. The statistical regression used is the panel regression method to analyze the determinants of inclusive growth there. Results: The study found that the average inclusive growth of districts/cities in Central Sulawesi is increasing from the low-level in 2015 to mid-level in 2019. The panel's data regression using fixed effect model FGLS-SUR found Investment (GFCF), Road Infrastructure, HDI, and Processing Industry have a significant positive effect. Regional minimum wage (RMW) has a significant negative effect. Government Expenditure on Education and Health Function has no significant positive effect on inclusive growth. Conclusions: throughout the study period, gini coefficient and poverty rate is slowly decreasing, while employment to population ratio remains volatile in districts/cities of Central Sulawesi.

Estimation of Optimal Empirical Equations based on Sediments of Ageing Reservoir Estimated Using Autonomous Navigation USV (자율항법 무인측량선을 이용하여 산정된 노후저수지의 퇴사량 기준 최적경험식 산정)

  • Won, Chang-Hee;Yoon, HyeonCheol;kim, Won-Beom
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.3
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    • pp.1-9
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    • 2020
  • Acritical function of a nation is to protect its people's lives and properties from natural disasters such as a drought. A drought affects many aspects of human life, including social, economic, and industrial activities. Approximately 75.7% of reservoirs in Korea are over 50 years old.Sedimentation over the years may have caused a situation where storage capacity of the reservoirs is no longer sufficient and compliant with the original reservoir specifications. This study analyzes storage capacities for ten aged reservoirs using the autonomous navigation USV. It compares these capacities with sediment estimated by conventional empirical equations. Comparisons were made to the original specifications for the reservoirs.Storage capacity of six reservoirs decreased in a range between 16.2%-55.3% and storage capacity of 4 reservoirs increased in a range between 1.5%-380.2%. This data was compared to data derived from estimating sediment by empirical equations. Yoon's equation(1982) appeared more accurate than Sur's equation(1988) in Uhlinzi and Yongpo reservoirs, and Sur's equation(1988), however, appeared more accurate than Yoon's equation in Daegok, Ugok2 and Ochi reservoirs. The significant ranges of sedimentation shown in this study suggest that it is worth continuously surveying reservoirs to ensure their efficient management and operation.