Search Results - "García, K. E."

Preparation and properties of an immobilized pectinlyase for the treatment of fruit juices by Busto, M.D., García-Tramontín, K.E., Ortega, N., Perez-Mateos, M.

“…Pectinlyase, present in different commercial pectinases used in juice technology, was immobilized on alginate beads. The optimal conditions were: 0.17 g…”
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Magnetic and crystal structure refinement in akaganeite nanoparticle by García, K.E., Morales, A.L., Barrero, C.A., Arroyave, C.E., Greneche, J.M.

“…Preliminary assignments of the low-temperature Mössbauer signals obtained by taking into account a monoclinic structure for the akaganeite are presented. A…”
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Mechanics of cortical folding: stress, growth and stability by Garcia, K. E., Kroenke, C. D., Bayly, P. V.

“…Cortical folding, or gyrification, coincides with several important developmental processes. The folded shape of the human brain allows the cerebral cortex,…”
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Lost iron and iron converted into rust in steels submitted to dry–wet corrosion process by García, K.E., Barrero, C.A., Morales, A.L., Greneche, J.M.

“…During the electrochemical corrosion of iron and steel not all the iron removed from the steel forms later part of the iron phases that remain stick to the…”
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Factors affecting the amount of corroded iron converted into adherent rust in steels submitted to immersion tests by Pérez, F.R., Barrero, C.A., García, K.E.

“…It is usually assumed that α∗, the amount of iron that is converted into adherent rust (AR), in steels exposed to immersion corrosion is a constant independent…”
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New contributions to the understanding of rust layer formation in steels exposed to a total immersion test by García, K.E., Morales, A.L., Barrero, C.A., Greneche, J.M.

“…Adherent (AR), differentiated as scraped and hit, and non-adherent (NAR) rusts formed on carbon and weathering steels exposed to chloride solutions in total…”
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New method to calculate Mössbauer recoilless f-factors in NiFe2O4. Magnetic, morphological and structural properties by Salazar-Tamayo, H., García, K.E., Barrero, C.A.

“…•We propose new equations for directly determining fFeA3+ and fFeB3+ in NiFe2O4 at RT.•NiFe2O4 was synthesized from NiO and α-Fe2O3 by using milling and heat…”
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Effects of chloride concentration, immersion time and steel composition on the spinel phase formation by Pérez, F.R., Barrero, C.A., Walker, A.R. Hight, García, K.E., Nomura, K.

“…The influences of chloride concentration, immersion time and steel composition on the physical properties of spinel phases formed as corrosion products in…”
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Simultaneous determination of the two recoilless f-fractions of akaganeite using a single Mössbauer spectrum by Barrero, C.A., García, K.E., Coa, J.C.

“…We propose a simple method for simultaneously calculating the two room temperature relative recoilless f-fractions of akaganeite without using the Debye…”
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Structural properties of iron phases formed on low alloy steels immersed in sodium chloride-rich solutions by Pérez, F.R., Barrero, C.A., Arnache, O., Sánchez, L.C., García, K.E., Hight Walker, A.R.

“…Products of corrosion were obtained from low alloy steels submitted to total immersion tests in solutions containing sodium chloride at different…”
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A proposal to evaluate the amount of corroded iron converted into adherent rust in steels exposed to corrosion by Barrero, C.A., García, K.E., Morales, A.L., Greneche, J.M.

“…► A formula for α, the amount of dissolved iron forming the adherent rust, was derived. ► After 2 years of exposure α was 0.93 and 0.76 for CS and WS,…”
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Line broadening in the 77 K 57Fe-Mössbauer spectra of some ferrous iron-containing medicines by Arredondo S., P. I., Barrero, C. A., Garcia, K. E., Greneche, J. M.

“…We report line broadening in the 77 K 57 Fe Mössbauer spectra of some commercially available medicines based on ferrous sulfates and on ferrous fumarates…”
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Characterization of akaganeite synthesized in presence of Al, Cr, and Cu ions and urea by Garcia, K E, Barrero, C A, Morales, A L, Greneche, J M

“…Crystallographic, chemical, and physical properties of akaganeite formed in the presence of Al3+, Cr3+, and Cu2+ ions and urea when it is obtained by the…”
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Probing the Energy Conversion Pathways between Light, Carriers, and Lattice in Real Time with Attosecond Core-Level Spectroscopy by Sidiropoulos, T. P. H., Di Palo, N., Rivas, D. E., Severino, S., Reduzzi, M., Nandy, B., Bauerhenne, B., Krylow, S., Vasileiadis, T., Danz, T., Elliott, P., Sharma, S., Dewhurst, K., Ropers, C., Joly, Y., Garcia, M. E., Wolf, M., Ernstorfer, R., Biegert, J.

“…Detection of the energy conversion pathways, between photons, charge carriers, and the lattice is of fundamental importance to understand fundamental physics…”
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Antioxidant activities in stored fruit, and in flowers of feijoa ( Acca sellowiana Berg) in a tropical highland of Mexico by Cruz-Castillo, J.G., Guerra-Ramírez, D., Famiani, F., González-García, K.E., Del Ángel-Coronel, O.A., Vargas-Ortíz, M.

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Mössbauer Characterization of Rust Obtained in an Accelerated Corrosion Test by García, K. E., Morales, A. L., Arroyave, C. E., Barrero, C. A., Cook, D. C.

“…We have performed drying-humectation cyclical processes (CEBELCOR) on eight A36 low carbon steel coupons in NaCl solutions containing 1×10−2 M and 1×10−1 M…”
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On the reaction of iron oxides and oxyhydroxides with tannic and phosphoric acid and their mixtures by Beltrán, J. J., Novegil, F. J., García, K. E., Barrero, C. A.

“…The actions of tannic acid, phosphoric acid and their mixture on lepidocrocite, goethite, superparamagnetic goethite, akaganeite, magnetite, hematite and…”
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The role of the spinel phases on the rust activity in corroded steels by Pérez, F. R., Londoño, C. F., Barrero, C. A., García, K. E., Tobón, J.

“…Carbon, CS, and weathering steels, WS, were totally immersed in a NaCl containing solution. The influence of steel composition and the presence/absence of air…”
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New method to calculate Mössbauer recoilless f-factors in NiFe^sub 2^O^sub 4^. Magnetic, morphological and structural properties by Salazar-Tamayo, H, García, KE, Barrero, CA

“…Mössbauer spectroscopy has long been used to calculate the degree of inversion (λ) in ferrites. To perform this calculation in NiFe2O4, it is assumed that the…”
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57Fe Mössbauer study of β-FeOOH obtained in presence of Al3+ and Ti4+ ions by BARRERO, C. A, GARCIA, K. E, MORALES, A. L, GRENECHE, J. M

“…This paper deals with the influence of Al3+ and Ti4+ ions on the formation of akaganeite when prepared by hydrolysis of FeCl3 solutions. The products were…”
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