Search Results - "Melo, Silvio A.B. Vieira de"

Generalized q-Weibull model and the bathtub curve by Assis, Edilson M, Borges, Ernesto P, Vieira de Melo, Silvio A.B

“…Purpose - The purpose of this paper is to analyze mathematical aspects of the q-Weibull model and explore the influence of the parameter q.Design methodology…”
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A comparative study of CPA and PC-SAFT equations of state to calculate the asphaltene onset pressure and phase envelope by Nascimento, Fábio P., Costa, Gloria M.N., Vieira de Melo, Silvio A.B.

“…The Perturbed-Chain Statistical Associating Fluid Theory (PC-SAFT) equation of state (EoS) and the Cubic-Plus-Association (CPA) EoS have been widely applied to…”
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Dense CO2 technology: Overview of recent applications for drug processing/formulation/delivery by Matos, Ravenna L., Vieira de Melo, Silvio A.B., Cabral Albuquerque, Elaine C.M., Foster, Neil R.

“…[Display omitted] •Different formulation strategies for drug delivery using dense CO2 are discussed.•Dense CO2-based processes for drug formulation development…”
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Evaluation and Improvement of Screening Methods Applied to Asphaltene Precipitation by Pereira, Verônica J, Setaro, Luisa L. O, Costa, Gloria M. N, Vieira de Melo, Silvio A. B

“…This study aims to evaluate the performance of the four most known screening methods used to predict the risk of asphaltene precipitation in crude oil…”
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Improvement of the Expanded Fluid Viscosity Model for Crude Oils: Effects of the Plus-Fraction Characterization Method and Density by Regueira, Victor B, Pereira, Verônica J, Costa, Gloria M. N, Vieira de Melo, Silvio A. B

“…The expanded fluid (EF) model is known for its capacity to calculate the viscosities of crude oil and its mixtures with solvents at high pressure and…”
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Modeling the Saturation Pressure of Systems Containing Crude Oils and CO2 Using the SRK Equation of State by Pereira, Verônica J, Regueira, Victor B, Costa, Gloria M. N, Vieira de Melo, Silvio A. B

“…This work investigates the saturation pressure of crude oil–CO2 mixtures and how the oil plus-fraction characterization methods affect it. Different…”
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Calculation of Bubble Pressure for Crude Oils: The Effect of q‑Weibull Distribution for Splitting the Heavy Fraction by Regueira, Victor B, Pereira, Verônica J, Costa, Gloria M. N, Vieira de Melo, Silvio A. B

“…Thermodynamic calculations involving crude oils require a proper characterization of the heavy-fraction in order to describe the phase behavior. Bubble…”
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Solubility and Solubility Modeling of Polycyclic Aromatic Hydrocarbons in Subcritical Ethanol and Water Mixtures by Teoh, Wen Hui, Vieira de Melo, Silvio A. B, Mammucari, Raffaella, Foster, Neil R

“…The solubilities of anthracene and p-terphenyl in subcritical ethanol and water mixtures were measured using a static analytical equilibrium method between 393…”
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Decision-making models and support systems for supply chain risk: Literature mapping and future research agenda by Fagundes, Marcus Vinicius Carvalho, Teles, Eduardo Oliveira, de Melo, Silvio Alexandre Beisl Vieira, Freires, Francisco Gaudêncio Mendonça

“…Supply chain disruptions have serious consequences for society and this has made supply chain risk management (SCRM) an attractive area for researchers and…”
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High-Pressure Modeling of Asphaltene Precipitation during Oil Depletion Based on the Solid Model by Regueira, Victor B, Soares, Renan O, Souza, Anderson D, Costa, Gloria M. N, Vieira de Melo, Silvio A. B

“…Asphaltene precipitation is a complex and serious problem in all sectors of the oil industry because it has a severe and detrimental impact on oil production…”
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Assessment of the liquid mixture density effect on the prediction of supercritical carbon dioxide volume expansion of organic solvents by Peng-Robinson equation of state by Cardoso, Samuel G., Costa, Gloria M.N., Vieira de Melo, Silvio A.B.

“…Volume expansion and liquid mixture density are key-factors to design particle precipitation processes from expanded organic solvents using supercritical…”
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Modeling high pressure vapor–liquid equilibrium of ternary systems containing supercritical CO2 and mixed organic solvents using Peng–Robinson equation of state by Costa, Gloria M.N., Cardoso, Samuel G., Soares, Renan O., Santana, Geilson L., Vieira de Melo, Silvio A.B.

“…•High-pressure VLE of CO2-organic solvents was modeled using PR-LCVM-UNIFAC EOS.•A sensitivity study of the LCVM parameter λ was done.•PR-LCVM-UNIFAC was…”
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Modeling failure rate of a robotic welding station using generalized q-distributions by Assis, Edilson M, Borges, Ernesto P, Vieira de Melo, Silvio A.B, Schnitman, Leizer

“…Purpose – The purpose of this paper is to compare four life data models, namely the exponential and the Weibull models, and their corresponding generalized…”
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Dissection of enzymatic kinetics and elucidation of detailed parameters based on the Michaelis‐Menten model. Kinetic and thermodynamic connections by Bonafe, Carlos F. S., Lima Neto, Daniel F., Aguirre, César A. P., Vieira de Melo, Silvio A. B., Lima, Wallisson Dos S., Bispo, Jose A. C.

“…A computational procedure based on the numerical integration of the Michaelis‐Menten model of enzyme action, free of any restrictions of steady‐state…”
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New correlations for interfacial tension of CO2-water-electrolyte systems at high pressure by Lins, Igor E.S., Santana, Graziela P., Costa, Gloria M.N., Vieira de Melo, Silvio A.B.

“…The CO2-aqueous phase interfacial tension (IFT) is a major property in enhanced oil recovery (EOR) processes by low salinity water alternating CO2 (CO2LSWAG)…”
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Degradation of oil well cement with sodium chloride content exposed to supercritical carbon dioxide conditions: Temperature and pressure effects by da Silva, Ana C.O., Miranda, Helen B., Andrade, Heloysa M.C., de Melo, Silvio A.B. Vieira, Gonçalves, Jardel P.

“…Understanding the effects of temperature and pressure on the supercritical CO2 degradation of wellbore cement with NaCl content is essential for cementing oil…”
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An experimental and theoretical investigation of asphaltene precipitation in a crude oil from the Brazilian pre-salt layer under CO2 injection by Nascimento, Fabio P., Pereira, Verônica J., Souza, Renan P., Lima, Rui C.A., Costa, Glória M.N., Rosa, Paulo T.V., Forca, Ana F., Vieira de Melo, Silvio A.B.

“…[Display omitted] •Phase behavior of a crude oil from the Brazilian pre-salt field is studied.•Bubble pressure increases with temperature in the range of…”
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Correlation and prediction of surface tension in single and mixed aqueous electrolyte solutions based on the mean ionic activity coefficient: A comparative analysis of Pitzer, E-NRTL and E-UNIQUAC models by Lins, Igor.E.S., Cruz, Natan.S., Costa, Gloria.M.N., Vieira de Melo, Silvio.A.B.

“…Li and Lu's model to calculate the surface tension of single and mixed aqueous electrolyte solutions, coupled with Pitzer, e-NRTL and e-UNIQUAC activity…”
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Liposomes Size Engineering by Combination of Ethanol Injection and Supercritical Processing by Santo, Islane Espirito, Campardelli, Roberta, Albuquerque, Elaine Cabral, Vieira De Melo, Silvio A B, Reverchon, Ernesto, Porta, Giovanna Della

“…Supercritical fluid extraction using a high-pressure packed tower is proposed not only to remove the ethanol residue from liposome suspensions but also to…”
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Modeling of the Asphaltene Onset Pressure from Few Experimental Data: A Comparative Evaluation of the Hirschberg Method and the Cubic-Plus-Association Equation of State by Nascimento, Fábio P, Souza, Marcos M. S, Costa, Gloria M. N, Vieira de Melo, Silvio A. B

“…Asphaltene onset pressure (AOP) is a key parameter to determine the flow assurance of live oils. In this study, the capabilities of the cubic-plus-association…”
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