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dNA Barcoding and systematic Review of Minervaryan Frogs(dicroglossidae:Minervarya) of Peninsular India:Resolution of a Taxonomic Conundrum with description of a New species

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Asian Herpetological Research 2021年第4期12卷 345-370页

作者： sonali GARG s.d.BIJU systematics Lab Department of Environmental StudiesUniversity of Delhi

The genus Minervarya is among the most widely distributed,commonly occurring,and taxonomically confusing groups of dicroglossid frogs in *** studies have provided evidence that this genus contains complexes of morphologically conserved but genetically divergent taxa—some widely distributed across south and southeast Asia,and many particularly restricted to the Western Ghats region of the Indian Peninsula—posing several challenges in resolving long-standing taxonomic ***,we present a systematic review of minervaryan species found in Peninsular India,based on extensive dNA barcoding with nearly 400 samples from the entire range of the genus,including 277 new samples and topotypic material for most available names from the study area,combined with detailed morphological *** a result,we recognise 18 species in Peninsular India,including a new species described herein as Minervarya pentali *** to the comprehensive nature of the study,including comparisons with all available types,certain long-standing taxonomic uncertainties on the status of ten previously known taxa are resolved Rana(Tomopterna)parambikulamana Rao,1937(=Minervarya parambikulamana),Rana(Hylorana)sauriceps Rao,1937(=Minervarya sauriceps),and Fejervarya kudremukhensis Kuramoto,Joshy,Kurabayashi,and sumida,2008"2007"(=Minervarya kudremukhensis),are considered as junior subjective synonyms of Rana(Rana)limnocharis mysorensis Rao,1922(=Minervarya mysorensis);Nyctibatrachus sanctipdustris *** Rao,1920(=Minervarya modesta)is proposed to be a synonym of Rana limnocharis syhadrensis Annandale,1919(=Minervarya syhadrensis);while Rana murthii Pillai,1979(=Minervarya murthii)and Fejervarya mudduraja Kuramoto,Joshy,Kurabayashi,and sumida,2008"2007"(=Minervarya mudduraja)are considered as junior subjective synonyms of Rana nilagirica Jerdon,1853(=Minervarya nilagirica).At the same time,Rana brevipalmata Peters,1871(=Minervarya brevipalmata),previously known only from its ori

关键词： amphibia distribution Fejervarya integrative taxonomy Minervarya pentali sp.nov. morphology species groups Western Ghats Biodiversity Hotspot

Global operational land imager Landsat-8 reflectance-based active fire detection algorithm

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International Journal of digital Earth 2018年第2期11卷 154-178页

作者： s.s.Kumar d.P.Roy Plant and Environmental sciences New Mexico State UniversityLas CrucesNMUSA Geospatial sciences Center of Excellence South Dakota State UniversityBrookingsSDUSA

A global operational land imager(GOLI)Landsat-8 daytime active fire detection algorithm is *** utilizes established contextual active fire detection approaches but takes advantage of the significant increase in fire reflectance in Landsat-8 band 7(2.20μm)relative to band 4(0.66μm).The detection thresholds are fixed and based on a statistical examination of 39 million non-burning Landsat-8 ***-temporal tests based on band 7 reflectance and relative changes in normalized difference vegetation index in the previous six months are used to reduce commissions *** probabilities of active fire detection for the GOLI and two recent Landsat-8 active fire detection algorithms are simulated to provide insights into their performance with respect to the fire size and *** algorithms are applied to 11 Landsat-8 images that encompass a range of burning conditions and *** and omission errors are assessed by visual interpretation of detected active fire locations and by examination of the Landsat-8 images and higher spatial resolution Google Earth *** GOLI algorithm has lower omission and comparable commission errors than the recent Landsat-8 active fire detection *** GOLI algorithm has demonstrable potential for global application and is suitable for implementation with other Landsat-like reflective wavelength sensors.

关键词： Earth observation remote sensing visible/infrared remote sensing

Thermal stress relaxation in shot peened and laser peened nickel-based superalloy

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Journal of Materials science & Technology 2020年第24期59卷 100-106页

作者： K.s.Chin s.Idapalapati d.T.Ardi school of Mechanical and Aerospace Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore Advanced Remanufacturing and Technology Centre 3 CleanTech LoopCleanTech Two#01/01Singapore 637143Singapore

The effects of cold work produced by peening processes in residual stress relaxation under elevated temperatures were *** types of peening processes namely shot peening and laser peening were used to generate different amount of cold work and residual stresses in the *** of residual stress induced by cold working were carried out using X-ray diffraction coupled with electrochemical polishing method to measure the variation of residual stress with *** stresses in shot peened samples were observed to relax more rapidly than that of laser peened ones when subjected to thermal *** data collected from the experimental investigation was then used to build a correlation function to model the effects of cold work on residual stress relaxation.A parameter describing cold work’s contribution to stress relaxation is introduced into the well-known Zener-WertAvrami(ZWA)*** model was validated against experimental measurements and showed good agreement in both shot peened and laser peened samples.

关键词： Residual stress Cold work surface treatment Nickel-based superalloys

Effect of natural and synthetic antioxidants on oxidative stability of FAMEs obtained from hevea brasiliensis

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Journal of Energy Chemistry 2013年第6期22卷 935-941页

作者： s.Nivetha d.Vetha Roy department of Chemistry and Research Centre Scott Christian College

Biodiesel(fatty acid alkyl esters),an alternate to fossil fuel,has the tendency of autoxidation and hence requires antioxidants for long term *** influence of synthetic and natural antioxidants on the oxidative stability was analysed for fresh FAMEs(fatty acid methyl esters)obtained from hevea brasiliensis at 140 *** activity was observed for synthetic antioxidants following the order of GA>BHT>dTBP>Q>GT-M>PH-M>GT-C,whereas the oxidative stability of stored FAMEs samples measured at 110 C reveals a nearly inverse *** stability was tested for the FAMEs obtained from hevea brasiliensis stored at 30 C,after addition of synthetic and natural antioxidants—butylated hydroxytoluene(BHT),2,6-di-tert-butylphenol(dTBP),quercetin(Q),gallic acid(GA),methanol extracts from green tea(GTM),pomegranate hull(PH-M),and chloroform extract of green tea(GT-C).Antioxidant activities above 1500 ppm was in the order of dTBP>BHT>GA>GT-C>GT-M>Q>*** antioxidants have been found more efficient to improve the storage stability of FAMEs obtained from hevea *** in particular has the highest protection factor.

关键词： hevea brasiliensis fatty acid methyl esters oxidative stability storage stability antioxidants

süd-Chemie EnviCatTM PTA for PTA plant emission control

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Süd-Chemie EnviCatTM PTA for PTA plant emission control

Influence of Grain size and Texture on the Yield Asymmetry of Mg-3Al-1Zn Alloy

第六届全国环境催化与环境材料学术会议

作者： dang Zhongyuan süd-Chemie

＜正＞PTA production chemical reaction （?） In chemical manufactures,the purified terephthalic acid（PTA） is produced by oxidation ofp-xylene by oxygen from *** processing is done using acetic acid as solvent,in the presence of a catalyst such as cobalt-manganese,using a bromide *** terephthalic acid is,in turn,used as a monomer component in the production of polymers, principally polyethylene terephthalate（polyester or PET）.

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cnki会议

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Journal of Materials science & Technology 2011年第1期27卷 29-34页

作者： s.M.Yin C.H.Wang Y.d.diao s.d.Wu s.X.Li shenyang University of Chemical Technology Shenyang 110142China Institute of Metal Research Chinese Academy of SciencesShenyang 110016China

The yield asymmetry between compression and tension of magnesium alloy Mg-3Al-1Zn（AZ31） with different grain sizes and textures has been studied by tensile and compressive testing of as-cast,as-extruded and equal channel angular pressed（ECAPed） *** significant yield asymmetry（the ratio of yield strength between compression and tension σyc/σyt is ～0.44） was found in as-extruded specimens and the corresponding microstructure evolution during deformation revealed that {10 ˉ 12} tensile twinning is the underlying reason for the large yield *** texture and grain size are influential factors for large yield *** separate contributions of grain size and texture on yield asymmetry were investigated.

关键词： Magnesium alloys Yield asymmetry Texture Grain size Equal channel angular pressing(ECAP)

degradation of synthetic dyeing Wastewater by Underwater Electrical discharge Processes

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Plasma science and Technology 2013年第7期15卷 659-665页

作者： s.d.KIM d.I.JANG B.J.LIM s.B.LEE Y.s.MOK Yeongsan River Environment Research Center National Institute of Environmental ResearchGwangju 500-480 Korea department of Chemical and Biological Engineering Jeju National UniversityJeju 690-756 Korea

Electrical discharge treatments of synthetic dyeing wastewater were carried out with two different systems： underwater pulsed electrical discharge （UPEd） and underwater dielectric barrier discharge （UdBd）. Reactive Blue 4 （RB4） and Acid Red 4 （AR4） were used as model contaminants for the synthetic wastewater. The performance of the aforementioned systems was compared with respect to the chromaticity removal and the energy requirement. The results showed that the present electrical discharge systems were very effective for degradation of the dyes. The dependences of the dye degradation rate on treatment time, initial dye concentration, electrical energy, and the type of working gas including air, 02, and N2 were examined. The change in the initial dye concentration did not largely affect the degradation of either RB4 or AR4. The energy delivered to the UPEd system was only partially utilized for generating reactive species capable of degrading the dyes, leading to higher energy requirement than the UdBd system. Among the working gases, the best performance was observed with O2. As the degradation proceeded, the concentration of total dissolved solids and the solution conductivity kept increasing while pH showed a decreasing trend, revealing that the dyes were effectively mineralized.

关键词： degradation dyeing wastewater pulsed electrical discharge dielectric barrierdischarge

Triad resonant wave interactions in electrically charged jets

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Applied Mathematics and Mechanics(English Edition) 2017年第8期38卷 1127-1148页

作者： s.ORIZAGA d.N.RIAHI department of Mathematics University of Arizona department of Mathematics University of Texas Rio Grande Valley

Nonlinear instability in electrically charged jets is studied using the governing electro-hydrodynamic equations describing stretching and thinning of a liquid jet. A jet flow system subject to both space and time evolving disturbances is considered. At the linear stage, the Rayleigh and conducting jet flow instability modes are *** instability in the flow is explored via triad resonant waves which uncover favorable operating modes not previously detected in the linear study of the problem. In particular, the jet radius is significantly reduced, and the electric field of the jet is properly oriented under the nonlinear study. It is found that taking into account the resonance triad modes provides a better mathematical description of a jet that stretches and thins due to tangential electric field effects. Both linear and nonlinear instability results in the jet flow system are presented and discussed.

关键词： electrically resonant instability hydrodynamic triad Rayleigh governing thinning radius favorable

VIBRATION OPTIMIZATION OF A PAssIVE sUsPENsION sYsTEM VIA GENETIC ALGORITHM

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International Journal of Modeling, simulation, and scientific Computing 2013年第1期4卷 1-21页

作者： s.d.JABEEN school of Applied sciences Haldia Institute of Technology Haldia 721301 West BengalIndia

In this paper,we have formulated mathematical models to optimize the bouncing transmissibility of the sprung mass of the half car system with passengers’seat suspensions considering different road *** corresponding problem has been solved with the help of advanced real coded Genetic Algorithm(GA).The nonlinearity of suspension spring and damper,which are the most important characteristics of the suspension,has been taken into account in order to validate the model to real *** nonlinear cubic polynomial has been used to describe the spring characteristic and a quadratic polynomial has been used to describe the damper *** coefficients of each polynomial represent the design parameters of the suspension system and are to be *** find these parameters we have formulated a nonlinear optimization problem in which the bouncing transmissibility of the sprung mass at the center of mass has been minimized with respect to technological constraints and the constraints which satisfy the performance as per IsO 2631 *** advanced real coded GA has been used to solve this problem in time domain and the results obtained have been compared to those obtained using the existing design *** objective function and the constraints have been evaluated by simulating the vehicle model over two roads with multiple bumps at uniform velocity.

关键词： Passive suspension vibration behavior road bump genetic algorithm and optimization.