Results 81 to 90 of about 996,664 (230)

Ingenieros del siglo XXI: importancia de la comunicación y de la formación estratégica en la doble esfera educativa y profesional del ingeniero

Arbor: Ciencia, Pensamiento y Cultura, 2008
El nacimiento de las redes mundiales de comunicación y las tecnologías de la información han redefinido el concepto de la educación en todos los ámbitos.
M.ª Paz Kindelán, Ana M.ª Martín
doaj   +1 more source

Detection of magnetic moment in thin films with a home-made vibrating sample magnetometer [PDF]

, 2018
This paper explores the optimization of an array of pick-up coils in a home-made vibrating sample magnetometer for the detection of magnetic moment in thin films.
Aviles Felix, Luis Steven, González Chávez, D., Gutarra Espinoza, Abel, Jordán, D., Laura, D., Leon Hilario, Ludwin Misael, Monteblanco, E.   +6 more
core   +1 more source

Application of Principal Component Analysis and Probabilistic Neural Networks in Ferralsols Recovery Evaluation Through Planting of Mabea Fistulifera and Eucalyptus Urograndis

Land Degradation &Development, EarlyView.
ABSTRACT This study presents an innovative assessment model for analyzing the evolution of degraded soils subjected to different reclamation strategies. The proposal combines statistical and artificial intelligence tools to jointly integrate multiple physical and chemical soil properties, allowing for a more synthetic view of the processes.
Melissa Alexandre Santos, Borja Velázquez‐Martí, Jorge João Delfim, Laura Silva Nantes, Jose Augusto Liberato de Souza, Gabriel Augusto da Silva Lunardelli, Dayara Vivian Alvares, Carolina dos Santos Batista Bonini   +7 more
wiley   +1 more source

A One-Week Laboratory Practice: Introducing the Students to the Study of Plant Biochemistry and Signal Transduction [PDF]

, 2000
This report describes a one-week laboratory practice for students. An approach to study a Calcium dependent protein kinase (CDPK) involved in signal transduction processes in potato plants, is undertaken.
Raices, Marcela, Tellez, Maria Teresa, Ulloa, Rita Maria   +2 more
core  

Dynamic parameter estimation problem for ethanol production from seaweed [PDF]

, 2014
Ethanol has been studied extensively as one of the current and probably future energy vectors. Fermentation of hydrolysed oligosaccharides from macroalgae biomass to ethanol has been certified, and several processing options have been proposed.
de Genaro, Pablo Adrian, Delpino, Claudio, Di Maggio, Jimena Andrea, Díaz, María Soledad, Estrada, Vanina Gisela   +4 more
core   +1 more source

Random Chemostats with Competition and Different Kinetics to Investigate the Growth of the Gut Microbiome

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We investigate some chemostat models incorporating wall growth, competition, random fluctuations on the dilution rate, and different consumption functions (Monod and Haldane). We analyze the asymptotic behavior of the solutions of the corresponding random differential systems to establish conditions on the model parameters under which the ...
Javier López‐de‐la‐Cruz, Felipe Rivero, Carlos R. Takaessu Jr.   +2 more
wiley   +1 more source

Influence of defects on the irreversible phase transition in the Fe-Pd doped with Co and Mn [PDF]

, 2018
The appearance of BCT martensite in Fe-Pd-based ferromagnetic shape memory alloys, which develops at lower temperatures than the thermoelastic martensitic transition, deteriorates the shape memory properties.
Bonifacich, Federico Guillermo, Gargicevich, Damian, Lambri, Osvaldo Agustin F., Pérez Landazábal, J. I., Recarte, V., Sánchez Alarcos, V., Zelada, Griselda Irene   +6 more
core   +2 more sources

Trajectory Control of Manipulator Robots With Uncertainties: A Saturated Continuous Integral Sliding Mode Approach

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT This study addresses the trajectory tracking control for manipulator robots with uncertainties. The main objective is to ensure that the robot follows a desired trajectory despite the presence of uncertainties/disturbances and considering control input constraints. The approach is developed in the framework of continuous integral sliding modes.
Emanuel Ortiz‐Ortiz, Juan Eduardo Velázquez‐Velázquez, Ramón Silva‐Ortigoza, Rosalba Galván‐Guerra   +3 more
wiley   +1 more source

Natural rubber/styrene-butadiene rubber blends prepared by solution mixing: Influence of vulcanization temperature using a Semi-EV sulfur curing system on the microstructural properties [PDF]

, 2017
Blends of natural rubber (NR) and styrene-butadiene rubber (SBR) were prepared by solution mixing and vulcanized with sulfur and accelerator in a Semi-EV system at 433 K and 443 K in order to study the vulcanization kinetic and the influence of ...
Macchi, Carlos Eugenio, Mansilla, Marcela Angela, Marzocca, Angel José, Somoza, Alberto Horacio   +3 more
core   +1 more source

Robustness Assessment of Public Transport Networks in Various Graph Representations: Systematic Review, Decision Support, and Case Study

Networks, EarlyView.
ABSTRACT The analysis of certain properties of the underlying graph of a public transport network generates insights about the network's structure. Hereby, the choice of the graph representation depends on a trade‐off between complexity reduction and information preservation to adequately model a public transport network.
Michael Palk, Stefan Voß, Raka Jovanovic   +2 more
wiley   +1 more source