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141篇 您的检索式:作者名="Katta"
    题名 作者 年代 出处 被引量
1非负载和氧化铝负载的纳米CeO_2-ZrO_2和CeO_2-Te_2O_3固溶体催化CO氧化(英文)显示文摘Ceria-zirconia(CZ)and ceria-terbia(CT)and alumina-supported ceria-zirconia(CZA)and ceria-terbia(CTA)solid solutions were synthesized by coprecipitation and deposition precipitation methods,respectively.Structural characteristics and catalytic activity of the synthesized samples have been investigated using X-ray diffraction(XRD),high resolution transmission electron microscopy(HRTEM),X-ray photoelectron spectroscopy(XPS),Raman spectroscopy(RS),and Brunauer-Emmett-Teller(BET)surface area measurements.To evaluate the catalytic properties,total oxygen storage capacity and CO oxidation activity measurements were carried out.The XRD analyses revealed the formation of Ce0.75Zr0.25O2 phase for CZ and Ce0.5Zr0.5O2 and Ce0.6Zr0.4O2 phases for CZA samples,respectively.While the formation of only Ce0.8Tb0.2O2-δphase was noted for both CT and CTA samples.All the supported and unsupported samples adopted a fluorite-type structure and exhibited cell parameters with respect to Vegard's rule.The HRTEM results indicated well-dispersed particles of the size around 5 nm.The RS measurements suggested the presence of oxygen vacancies due to defective structure formation.The XPS studies revealed the presence of cerium in both Ce 4+ and Ce 3+ oxidation states in different proportions.It was found that CO oxidation for CTA occurs at very much lower temperature than CT,CZ,and CZA samples.Details of these findings by correlating with the structural characterization studies are consolidated.M.Reddy BENJARAM Thrimurthulu GODE Lakshmi KATTA 2011催化学报2011,32,5:3
2Storage space allocation in container terminals显示文摘Chuqian Zhang Jiyin Liu Yat-wah Wan Katta G Murty Richard J Linn 2003Transportation Research Part B2003,,10:2
3Modeling and multi-response optimization of machining performance while turning hardened steel with self-propelled rotary tool显示文摘There are many advanced tooling approaches in metal cutting to enhance the cutting tool performance for machining hard-to-cut materials.The self propelled rotary tool(SPRT) is one of the novel approaches to improve the cutting tool performance by providing cutting edge in the form of a disk,which rotates about its principal axis and provides a rest period for the cutting edge to cool and allow engaging a fresh cutting edge with the work piece.This paper aimed to present the cutting performance of SPRT while turning hardened EN24 steel and optimize the machining conditions.Surface roughness(R_a) and metal removal rate(r_(MMR)) are considered as machining performance parameters to evaluate,while the horizontal inclination angle of the SPRT,depth of cut,feed rate and spindle speed are considered as process variables.Initially,design of experiments(DOEs) is employed to minimize the number of experiments.For each set of chosen process variables,the machining experiments are conducted on computer numerical control(CNC) lathe to measure the machining responses.Then,the response surface methodology(RSM) is used to establish quantitative relationships for the output responses in terms of the input variables.Analysis of variance(ANOVA) is used to check the adequacy of the model.The influence of input variables on the output responses is also determined.Consequently,these models are formulated as a multi-response optimization problem to minimize the R_a and maximize the r_(MMR)simultaneously.Non-dominated sorting genetic algorithmII(NSGA-II) is used to derive the set of Pareto-optimal solutions.The optimal results obtained through the proposed methodology are also compared with the results of validation experimental runs and good correlation is found between them.Thella Babu Rao A.Gopala Krishna Ramesh Kumar Katta Konjeti Rama Krishna 2015Advances in Manufacturing2015,3,1:2
4Experimental and numerical evaluation of metallic compounds for suppressing cup-burner flames显示文摘LINTERIS G T KATTA V R TAKAHASHI F 2004Combustion and Flame2004,138,12:1
5Experimental and numerical evaluation of metallic compounds for suppressing cup-burner flames 显示文摘G T Linteris V R Katta F Takahashi 2004Combustion and flame2004,138,12:1
6Storage space allocation in container terminals显示文摘Chuqian Zhang Jiyin Liu Yat-wah Wan Katta G Murty Richard J Linn 2003Transportation Research Part B2003,,10:1
7Controversies in acral lentiginous melanoma显示文摘Stalkup JR Orengo IF Katta R 2002Dermatol Surg2002,28,11:1
8A decision support system for operations in a container terminal显示文摘Katta G. Murty Jiyin Liu Yat-wah Wan Richard Linn 2003Decision Support Systems2003,,3:1
9t-plasminogen activator inhibitor-1 polymorphism in idiopathic pulmonary arterial hypertension显示文摘Katta S Vadapalli S Sastry BK 2008Indian J Hum Genet2008,14,:1
10Continous Electrospinning of Aligned Polymer Nanofobers onto a Wire Drum Collector 显示文摘Katta P Alessandro M Ramsier RD 2004Nano Letters2004,4,11:1
11Development and characteriza- tion of an acellular porcine medial meniscus for use in tissue engi- neering 显示文摘Stapleton TW Ingram J Katta J 2008Tissue Eng Part A2008,14,:1
12T helper 17 cells play a critical pathogenic role in lung cancer显示文摘Chang SH Mirabolfathinejad SG Katta H 2014Proc Natl Acad Sci U S A2014,111,15:1
13Study on trapped vortex combustor-effect of injection on flow dynamics显示文摘Katta V R Roquemore W M 1998Journal of Propulsion and Power1998,,14:1
14Continuous electrospinning of aligned polymer nanofibers onto a wire drum collector显示文摘KATTA P ALESSANDRO M RAMSIER R D 2004Nano Letters2004,4,11:1
15Effect of load variation on the friction properties of articular cartilage显示文摘Katta J Pawaskar S S Jin Z M 2007Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology2007,221,3:1
16Use of a single-quadrupole mass spectrometer for collision-induced dissociation studies of multiply charged peptide ions produced by electrospray ionization显示文摘KATTA V CHOWDHURY S K CHAIT B T 1991Analytical Chemistry1991,63,2:1
17Lichen planus 显示文摘Katta R 2000American Family Physician2000,61,11:1
18Effect of temperature and screw speed on fumonisin B1 in extrusion-cooked corn grits 显示文摘Katta K S Jackson L S Sumner S S 1999Cereal Chemistry1999,76,1:1
19Biotribology of articular carti- lage :a review of the recent advances 显示文摘Katta J Jin Z Ingham E 2008Medical Engineering and Physics2008,30,10:1
20Overload induced heat shock proteins (HSPs),MAPK and miRNA (miR-1 and miR133a) response in insulin-resistant skeletal muscle显示文摘Katta A Thulluri S Manne ND 0,,2:1
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