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Characterization of a beta-1,3-glucanase active in the alkaline midgut of Spodoptera frugiperda larvae and its relation to beta-glucan-binding proteins
(PERGAMON-ELSEVIER SCIENCE LTD, 2010)
Spodoptera frugiperda beta-1,3-glucanase (SLam) was purified from larval midgut. It has a molecular mass of 37.5 kDa, an alkaline optimum pH of 9.0, is active against beta-1,3-glucan (laminarin), but cannot hydrolyze yeast ...
Properties of soluble α-chymotrypsin in neat glycerol and water
(Elsevier Science Inc, 2000-12)
UV scanning of a-chymotrypsin dissolved in neat glycerol and water showed no significant differences in its spectra at pH 7.8. Fluorescence scanning revealed a strong dependence on pH values (between 5.9 to 10.5) of the ...
A comparative analysis on the seismic behavior of buildings using inerter-based devices: Tuned Mass Damper Inerter (TMDI) and Tuned Inerter Damper (TID)
(Medellín - Minas - Maestría en Ingeniería - EstructurasDepartamento de Ingeniería CivilUniversidad Nacional de Colombia - Sede Medellín, 2020-06)
To accomplish an appropriate performance of tuned mass dampers (TMDs) in building structures subjected to earthquake excitations, considerable amounts of mass must be added at upper floors, which in occasions may result ...
Properties of horseradish peroxidase immobilised onto polyaniline
(Elsevier Sci LtdOxfordInglaterra, 2004)
Wear resistance of vanadium-niobium carbide layers grown via TRD
(2015-09-01)
Nb-V complex carbide coatings were produced on AISI D2 steel substrates using the thermo-reactive diffusion (TRD) process in order to
improve the surface hardness and wear resistance of this tool steel. The carbide coating ...
Optimización de sistemas sismo resistentes en estructuras de masa concentrada para la ciudad de Bogotá D.C.
(Universidad Católica de ColombiaFacultad de IngenieríasBogotáIngeniería Civil, 2022)
Este documento presenta una investigación relacionada a la eficiencia de los sistemas de amortiguadores de masa sintonizada (TMD) y base aislada (BI), a los cuales se le realizan una comparación en estructuras de tres, ...
Perfil de invasión de un surfactante aniónico en procesos de recobro mejorado
(Medellín - Minas - Maestría en Ingeniería - Ingeniería de PetróleosDepartamento de Procesos y EnergíaUniversidad Nacional de Colombia - Sede Medellín, 2019-11-22)
The retention of surfactant in the porous medium is one of the factors that affect the development of an EOR process because the greater amount of the surfactant remains in the vicinity of the face of the well preventing ...