Search Results - "Tavares, L.M"

The contribution of DEM to the science of comminution by Weerasekara, N.S., Powell, M.S., Cleary, P.W., Tavares, L.M., Evertsson, M., Morrison, R.D., Quist, J., Carvalho, R.M.

“…The ability to model comminution techniques has been key in the mineral processing industry and other industries where size reduction of rocks is a key focus…”
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Improved pozzolanic activity of sugar cane bagasse ash by selective grinding and classification by Cordeiro, G.C., Tavares, L.M., Toledo Filho, R.D.

“…Selective grinding was identified as a potential technology to reduce the content of quartz in sugar cane bagasse ash (SCBA), so as to assist in developing an…”
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Experimental characterization of binary and ternary blended-cement concretes containing ultrafine residual rice husk and sugar cane bagasse ashes by Cordeiro, G.C., Toledo Filho, R.D., Tavares, L.M., Fairbairn, E.M.R.

“…▸ Sugar cane bagasse and rice husk ashes are used as pozzolan. ▸ Ordinary and high-strength concretes with binary and ternary mixtures. ▸ The ashes caused…”
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Pozzolanic activity and filler effect of sugar cane bagasse ash in Portland cement and lime mortars by Cordeiro, G.C., Toledo Filho, R.D., Tavares, L.M., Fairbairn, E.M.R.

“…Sugar cane bagasse ash (SCBA) is generated as a combustion by-product from boilers of sugar and alcohol factories. Composed mainly of silica, this by-product…”
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Mechanistic modeling and simulation of a batch vertical stirred mill by Oliveira, A.L.R., Rodriguez, V.A., de Carvalho, R.M., Powell, M.S., Tavares, L.M.

“…•Application of mechanistic modelling approach to batch wet vertical mills.•Stirrer rotation frequency and solids concentration effects captured by the…”
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Alkaline leaching of zinc from electric arc furnace steel dust by Dutra, A.J.B., Paiva, P.R.P., Tavares, L.M.

“…Electric arc furnaces (EAF) generate about 10–20 kg of dust per metric ton of steel, which constitute a hazardous waste, known as EAF dust. This dust contains…”
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Performance evaluation of cement mortars modified with metakaolin or ground brick by Gonçalves, J.P., Tavares, L.M., Toledo Filho, R.D., Fairbairn, E.M.R.

“…The work analyzes the performance of mortars prepared with two metakaolin samples and ground calcined-clay brick. Complete stress–strain deformation response…”
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Comparison of natural and manufactured fine aggregates in cement mortars by Gonçalves, J.P., Tavares, L.M., Toledo Filho, R.D., Fairbairn, E.M.R., Cunha, E.R.

“…The performance of cement mortars using manufactured fine aggregates produced by cone crushing or impact crushing has been compared to that of mortars prepared…”
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Microstructure of quarry rocks and relationships to particle breakage and crushing by Tavares, L.M., das Neves, Patrícia B.

“…Relationships between microstructure, fracture mechanism and mechanical response of rocks under stressing have been intensively investigated in the last couple…”
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Particle weakening in high-pressure roll grinding by Tavares, L.M.

“…In the literature, comminution in the roller press and subsequent ball milling has been observed to produce significant energy savings in comparison to ball…”
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Modeling of particle fracture by repeated impacts using continuum damage mechanics by Tavares, L.M, King, R.P

“…Damage mechanics is a field in the mechanics of solids that has evolved significantly in the past few decades, particularly given its ability of describing…”
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Impact work index prediction from continuum damage model of particle fracture by Tavares, L.M., Carvalho, R.M.

“…The traditional Bond work index proposed by F.C. Bond over 60 years ago is still today a useful tool for characterizing material crushability and grindability…”
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On the Statistics of the Sum of Squared Complex Gaussian Random Variables by Tavares, G.N., Tavares, L.M.

“…In this letter, we derive new results for the statistics of the complex random variable z = Delta Sigma n=1 N x n 2 = z 1 + jz Q = re jphi where { x n } is a…”
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An Improved Feedforward Frequency Offset Estimator by Tavares, G.N., Tavares, L.M., Petrolino, A.

“…In this correspondence, we propose a new feedforward frequency offset or single frequency estimator which is based on a single weighted sample correlation with…”
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Statistical analysis of impact-fracture characteristics and microstructure of industrial Portland cement clinkers by Tavares, L.M., Cerqueira, M.C.

“…Impact is the dominant breakage mode in most industrial grinding mills used in cement manufacture. The physical amenability of two industrial Portland cement…”
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Sequence Design for Data-Aided Estimation of Synchronization Parameters by Tavares, G.N., Tavares, L.M.

“…In this letter, we propose a systematic technique for optimum data-sequence design for data-aided (DA) estimation of synchronization parameters. It is assumed…”
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Measurement of the load–deformation response from impact-breakage of particles by Tavares, L.M., King, R.P.

“…A further modification of the Hopkinson pressure bar has been developed for the accurate measurement of the force–deformation response from impact of single…”
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On the Miller-Chang lower bound for NDA carrier phase estimation by Tavares, G.N., Tavares, L.M., Piedade, M.S.

“…In this letter, we derive a new Miller-Chang lower bound (MCB) for the variance of unbiased non-data-aided (NDA) carrier phase estimates obtained from a block…”
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Perceptual and acoustic parameters of vocal nodules in children by Gramuglia, Andréa Cristina Joia, Tavares, Elaine L.M, Rodrigues, Sérgio Augusto, Martins, Regina H.G

“…Abstract Vocal nodules constitute the major cause of dysphonia during childhood. Auditory-perceptual and acoustic vocal analyses have been used to…”
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Vocal Evaluation in Teachers With or Without Symptoms by Tavares, Elaine L.M, Martins, Regina H.G

“…Summary The aim of this study was to perform voice evaluation in teachers with and without vocal symptoms, identifying etiologic factors of dysphonia, voice…”
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