M. A. Gordillo

University of Pittsburgh

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Francisco Valero

Universitat Autònoma de Barcelona

Javier Lafuente

Universitat Autònoma de Barcelona

José Luis González Montesinos

Universitat Autònoma de Barcelona

J.M.K. Wiezorek

University of Pittsburgh

Mark Aindow

University of Connecticut

Thomas J. Watson

University of Cambridge

Carles Solà

York University

Antoni Sánchez

Universitat Autònoma de Barcelona

N. Obradors

Universitat de Vic - Universitat Central de Catalunya

Lidia Lityńska‐Dobrzyńska

Institute of Metallurgy and Materials Science

Cooperative Institutions

Universitat Autònoma de Barcelona

Institute of Metallurgy and Materials Science

Polish Academy of Sciences

Universitat de Barcelona

Lawrence Livermore National Laboratory

University of Pittsburgh

University of Connecticut

Silesian University of Technology

Warsaw University of Technology

Military University of Technology in Warsaw

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Biotechnology Letters (2001)

M.A. Joga Xavier Font M. A. Gordillo Francisco Valero

Flow injection analysis

Dilution

Relative standard deviation

Linear range

10.1023/a:1010522818725

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Citations (2)

Quantitative Phase Analysis of Rapid Solidification Products in Al-Cu Alloys by Automated Crystal Orientation Mapping in the TEM

Microscopy and Microanalysis (2015)

Kai Zweiacker M. A. Gordillo C. Liu Joseph T. McKeown G. H. Campbell

Journal Article Quantitative Phase Analysis of Rapid Solidification Products in Al-Cu Alloys by Automated Crystal Orientation Mapping in the TEM Get access K W Zweiacker, K W Zweiacker University of Pittsburgh, Pittsburgh, PA, USA Search for other works by this author on: Oxford Academic Google Scholar M A Gordillo, M A Gordillo University of Pittsburgh, Pittsburgh, PA, USA Search for other works by this author on: Oxford Academic Google Scholar C Liu, C Liu University of Pittsburgh, Pittsburgh, PA, USA Search for other works by this author on: Oxford Academic Google Scholar J T McKeown, J T McKeown Lawrence Livermore National Laboratory, Livermore, CA, USA Search for other works by this author on: Oxford Academic Google Scholar G H Campbell, G H Campbell Lawrence Livermore National Laboratory, Livermore, CA, USA Search for other works by this author on: Oxford Academic Google Scholar T LaGrange, T LaGrange Integrated Dynamic Electron Solution, Inc, Pleasanton, CA, USA Search for other works by this author on: Oxford Academic Google Scholar B W Reed, B W Reed Integrated Dynamic Electron Solution, Inc, Pleasanton, CA, USA Search for other works by this author on: Oxford Academic Google Scholar J M Wiezorek J M Wiezorek University of Pittsburgh, Pittsburgh, PA, USA Search for other works by this author on: Oxford Academic Google Scholar Microscopy and Microanalysis, Volume 21, Issue S3, 1 August 2015, Pages 1465–1466, https://doi.org/10.1017/S1431927615008107 Published: 23 September 2015

Crystal (programming language)

10.1017/s1431927615008107

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Citations (3)

Structure and mechanical properties in a powder-processed icosahedral-phase-strengthened aluminum alloy

Scripta Materialia (2016)

Thomas J. Watson M. A. Gordillo Iuliana Cernatescu Mark Aindow

10.1016/j.scriptamat.2016.05.037

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Citations (30)

Improvement of lipase productivity in bioprocesses using a structured mathematical model

Journal of Biotechnology (1997)

José Luis González Montesinos M. A. Gordillo Francisco Valero Javier Lafuente Carles Solà

Candida rugosa

Dilution

10.1016/s0168-1656(96)01646-x

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Citations (20)

Selectivity of Burgers Orientation Relationship Variants During β—>α Transformation in β‐Titanuim Alloy VT22 Under Severe Hot Forging and Rolling

Sergey V. Prikhodko P.E. Markovsky Scott D. Sitzman M. A. Gordillo J.M.K. Wiezorek

The evolution of the microstructure, texture and mechanical properties of typical titanium-based metastable β-alloy, VL22 (Li-5.0Al-4.79Mo-4.70V-0.97Fe-0.71Cr, wt. %), caused by severe hot (below 750°C) plastic deformation that ensures true deformation |e|=1.39 in a single pass was studied. Lhis type of deformation results in microstructure comprised of elongated un-recrystallized β-phase grains having a sharp axial texture, and fine intragranular α-phase precipitates. Additional annealing at α+β temperatures results in improved balance of strength and ductility, while retaining the β-phase grain morphology and crystallographic texture. Electron backscatter diffraction and precession electron diffraction were used for analysis of the crystallography of the phases evolved during β→β transformation. Lhe Burgers orientation relationship (BOR) is fulfilled for the intragranular α-precipitates and the β-matrix grains; however, the realization probability of some BOR variants within individual β-grains is not evenly distributed between all possible variants. This can be attributed to the stress accommodation during β→α transformation under conditions of severe plastic deformation.

Titanium alloy

Texture (cosmology)

10.1002/9781119296126.ch64

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Citations (2)

Enhancement of Candida rugosa lipase production by using different control fed-batch operational strategies.

PubMed (1998)

M. A. Gordillo Antoni Sanz Antoni Sánchez Francisco Valero José Luis González Montesinos

Simulation studies have predicted that maximum lipase activity is reached with fed-batch operation strategies. In this work, two different fed-batch operational strategies have been studied: constant substrate feeding rate and specific growth rate control. A constant substrate feeding rate strategy showed that maximum aqueous lipolytic activity (55 U/mL) was reached at low substrate feeding rates, whereas lipase tends to accumulate inside the cell at higher rates of substrate addition. In the second fed-batch strategy studied, a feedback control strategy has been developed based on the estimation of state variables (X and mu) from the measurement of indirect variables such as CER by means of mass spectrometry techniques. An on-off controller was then used to maintain the specific growth rate at the desired value by adjusting the substrate feeding rate. A constant specific growth rate strategy gave higher final levels of aqueous lipolytic activity (117 U/mL) at low specific growth rates. At higher specific growth rates the enzyme remained accumulated inside the cell, as was observed with a constant feeding fed-batch strategy. With a constant specific growth rate strategy, lipase production by Candida rugosa was enhanced 10-fold compared to a batch operation. Purification studies have demonstrated that lipolytic and esterasic specific activity ratios of Candida rugosa isoenzymes can be modified by using different operational conditions. These studies have also showed that the isoenzymes obtained in a controlled growth rate strategy are around three- to four-fold more active than those obtained in a constant feeding rate strategy.

Candida rugosa

Source

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Citations (54)

Effects of hot-compaction on the structure and properties of Al-Mn-Fe-X alloys strengthened with quasi-crystalline icosahedral phase

Materials & Design (2017)

Katarzyna Stan-Głowińska Lidia Lityńska‐Dobrzyńska B. Kania J. Dutkiewicz Łukasz Rogal

Hot pressing

10.1016/j.matdes.2017.04.043

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Citations (22)

Effect of heat-treatment on phase stability and grain coarsening in a powder-processed Al–Ni–Co–Zr–Y alloy