Results 91 to 100 of about 1,101,165 (304)

Generalización de la ecuación de transformación de fases al análisis de la cinética de cristalización no-isoterma. Aplicación a la aleación vítrea Cu_0.10As_0.40Se_0.50

Boletín de la Sociedad Española de Cerámica y Vidrio, 2000
The techniques of differential thermal analysis are frequently employed to study the kinetics of the transformation reactions and, in particular, the crystallization of the glassy alloys.
Jiménez-Garay, R., Villares, P., López-Alemany, P. L., Vázquez, J.   +3 more
doaj  

Parametric Study of NTH Order Distributed Activation Energy Model for Isothermal Pyrolysis of Forest Waste Using Gaussian Distribution

Acta Technologica Agriculturae, 2017
This paper deals with the influence of some factors relevant to isothermal pyrolysis of residual leaves of Cedrus deodara on the asymptotic solution of the non-isothermal nth order distributed activation energy model (DAEM) using Gaussian distribution ...
Dhaundiyal Alok, Singh Suraj B.
doaj   +1 more source

Spectral analysis of electron transfer kinetics II

, 2002
Electron transfer processes in Debye solvents are studied using a spectral analysis method recently proposed. Spectral structure of a nonadiabatic two-state diffusion equation is investigated to reveal various kinetic regimes characterized by a broad ...
Alexandrov I. V., Jianshu Cao, YounJoon Jung   +2 more
core   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Determinación de parámetros cinéticos por la técnica calorimétrica de barrido único. Aplicación a la cristalización no isoterma de la aleación Sb_0.12As_0.40Se_0.48

Boletín de la Sociedad Española de Cerámica y Vidrio, 2000
A procedure has been developed for analyzing the evolution with time of the crystallized fraction and for calculating the kinetic parameters at non-isothermal reactions involving formation and growth of nuclei.
Jiménez-Garay, R., Villares, P., López-Alemany, P. L., Vázquez, J.   +3 more
doaj  

Thermoluminescence Properties of Plagioclase Mineral and Modelling of TL Glow Curves with Artificial Neural Networks

Applied Sciences
The thermoluminescence (TL) method is one of the most widely used techniques in various studies, including dosimetric applications, dating of archaeological and geological materials, luminescence spectroscopy of certain insulating or semiconducting ...
Mehmet Yüksel, Emre Ünsal
doaj   +1 more source

Analytic results for Gaussian wave packets in four model systems: I. Visualization of the kinetic energy

, 2004
Using Gaussian wave packet solutions, we examine how the kinetic energy is distributed in time-dependent solutions of the Schrodinger equation corresponding to the cases of a free particle, a particle undergoing uniform acceleration, a particle in a ...
A. M. Ozorio de Almeida, A. Messiah, A. S. de Castro, B. R. Holstein, B. Thaller, C. Cohen-Tannoudji, C. G. Darwin, D. Bohm, D. F. Styer, D. S. Saxon, D. ter Haar, E. C. Kemble, E. H. Kennard, E. Schrödinger, E. Wigner, H.-W. Lee, J. Bertrand, J. R. Hiller, K. Gottfried, L. de Broglie, L. de la Torre, L. I. Schiffer, M. A. Doncheski, M. Belloni, M. Belloni, M. H. Bramhall, M. Hillery, N. L. Balaczs, P. Carruthers, P. Fong, P. Nardone, R. P. Feynman, R. P. Feynman, R. W. Robinett, R. W. Robinett, S. Dushman, S. Howard, S. M. Cohen, V. I. Tatarskii, V. Rojansky, W. Waldenström, Y. S. Kim, Y. S. Kim   +42 more
core   +1 more source

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source

Riboflavin Production by Steady-State Continuous Cultures of Hyphopichia wangnamkhiaoensis in a Bubble Column Bioreactor

Microorganisms
Riboflavin is biosynthesized and excreted extracellularly by the novel yeast Hyphopichia wangnamkhiaoensis. The steady-state kinetics of cell growth, substrate consumption, and riboflavin production by H.
Raziel Arturo Jiménez-Nava, Griselda Ma. Chávez-Camarillo, Eliseo Cristiani-Urbina   +2 more
doaj   +1 more source

The effects of fatigue on race walking technique [PDF]

, 2007
The purpose of this study was to measure the effects of fatigue on gait parameters during race walking. Research has shown that fatigued athletes require gait alterations in order to maintain speed. Eighteen competitive race walkers walked either 5 km or
Drake, A, Hanley, B
core   +1 more source