13 Result(s)

Article

Dispersion Characteristics and Curing Behaviour of Waterborne UV Crosslinkable Polyurethanes Based on Renewable Dimer Fatty Acid Polyesters

In the last few years there has been a great deal of interest in modifying the methodologies for obtaining polyurethanes using more sustainable strategies. Following this tendency, in the present work, waterbo...

I. Etxaniz, O. Llorente, J. Aizpurua, L. Martín… in Journal of Polymers and the Environment (2019)

Article

Influence of Ni content on Fe–Nb–B alloy formation

In this work three alloys, Fe₇₄Nb₆B₂₀, Fe₆₄Ni₁₀Nb₆B₂₀ and Fe₅₄Ni₂₀Nb₆B₂₀, were obtained by mechanical alloying to analyze the influence of Ni content on Fe–Nb–B alloy formation. Structural analysis by X-ray diffr...

J. Bonastre, L. Escoda, A. González… in Journal of Thermal Analysis and Calorimetry (2007)

Article

Thermal analysis of Fe(Co,Ni) based alloys prepared by mechanical alloying

In this work several Fe(Co,Ni) based nanocrystalline alloys were obtained by mechanical alloying. Thermal study was performed by differential scanning calorimetry and thermogravimetry. After 80 h milling, all ...

A. González, J. Bonastre, L. Escoda… in Journal of Thermal Analysis and Calorimetry (2007)

Article

Thermal behavior of several Fe-Ni alloys prepared by mechanical alloying and rapid solidification

Several Fe-Ni-P-Si alloys were produced in an amorphous state by mechanical alloying and rapid solidification. Thermal behavior of the as prepared alloys was analyzed and compared with identical alloys stored ...

A. González, J. J. Suñol, J. Bonastre… in Journal of Thermal Analysis and Calorimetry (2005)

Article

Application of fentonś reaction to steam explosion prehydrolysates from poplar biomass

The application of Fenton’s reaction to enhance the fermentability of prehydrolysates obtained from steam explosion pretreatment of poplar biomass was studied. Reaction conditions of temperature and H₂O₂ and Fe(I...

J. M. Oliva, P. Manzanares, I. Ballesteros… in Applied Biochemistry and Biotechnology (2005)

Article

Determination of vanadium in mussels by electrothermal atomic absorption spectrometry without chemical modifiers

A method was developed for the quantitative determination of total vanadium concentration in mussels via electrothermal atomic absorption spectrometry (ETAAS). After the microwave digestion of the samples, a p...

Y. Saavedra, P. Fernández, A. González in Analytical and Bioanalytical Chemistry (2004)

Article

Thermal analysis of two Fe-X-B (X=Nb, ZrN_i) alloys prepared by mechanical alloying

The alloys, Fe₆₀Ni₁₄Zr₆B₂₀ and Fe₈₅Nb₉B₆, were produced by mechanical alloying. The formation of the nanocrystallites (about 40 nm) was detected by X-ray diffraction. Furthermore, a slight oxygen presence (<3 at....

J. J. Suńol, A. González, J. Saurina in Journal of Thermal Analysis and Calorimetry (2003)

Article

Effect of chip size on steam explosion pretreatment of softwood

Although considerable progress has been made in technology for converting lignocellulosic biomass into ethanol, substantial opportunities still exist toreduce production costs. In biomass pretreatment, reducin...

I. Ballesteros, J. M. Oliva, A. A. Navarro… in Applied Biochemistry and Biotechnology (2000)

Article

Production of Bacillus thuringiensis subsp. medellin by batch and fed-batch culture

Bacillus thuringiensis subsp. medellin was grown until sporulation in a 1.1 l fermenter in batch and intermittent fed-batch culture. At optimum conditions 25 g dry cells l−1 and 9×108 spores ml−1 were produced...

F. Vallejo, A. González, A. Posada, A. Restrepo, S. Orduz in Biotechnology Techniques (1999)

Article

Microcanonical ensemble study of a gas column under gravity

The study of a classical ideal gas column of finite height H in a uniform gravitational field g is made by the microcanonical ensemble at energy E. The primary functions of this ensemble, the phase volume and the...

F.L. Román, A. González, J.A. White… in Zeitschrift für Physik B Condensed Matter (1997)

Article

Determination of lithium in alcoholic beverages by inductively coupled plasma atomic emission spectometry (ICP/AES)

The inductively coupled plasma atomic emission spectrometry (ICP/AES) determination of lithium in spirituous liquors has been investigated. The results have been statistically compared with those obtained usin...

C. Baluja, A. López, M. I. Basadre… in Fresenius' Journal of Analytical Chemistry (1996)

Article

Electroanalytical study of diethyl and dibutyl phthalate in micellar and oil-in-water emulsified media

A polarographic study was carried out of the reduction processes of diethyl and dibutyl phthalate in micellar solutions with the cationic surfactant Hyamine 1622, and in an emulsified medium from aliquots of t...

A. González, P. Sánchez, J. M. **arrón… in Fresenius' Journal of Analytical Chemistry (1994)

Article

Analyse der Alkohole

Tadeus Reichstein, G. Heller, K. Schülke, A. Grün… in Zeitschrift für analytische Chemie (1927)