Results 21 to 30 of about 1,727 (170)

Hydrogen Sulfide Production with a Microbial Consortium Isolated from Marine Sediments Offshore

Journal of Marine Science and Engineering, 2022
Hydrogen, electric energy production, and metal toxic bioremediation are some of the biotechnological applications of sulfate-reducing organisms, which potentially depend on the sulfide produced.
Roberto Briones-Gallardo, Muriel González-Muñoz, Itza García-Bautista, David Valdés-Lozano, Tanit Toledano-Thompson, Erik Polanco-Lugo, Renata Rivera-Madrid, Ruby Valdez-Ojeda   +7 more
doaj   +1 more source

Identificación de sitios potencialmente contaminados en Baja California Sur, México: Puerto San Carlos, El Cardonal y Estero San Buto

Sociedad y Ambiente
Dado el deterioro ambiental en nuestro planeta, es imperativo contar con información sobre espacios contaminados en zonas urbanas y rurales, y una de las metodologías más utilizadas es el mapeo y la identificación de sitios potencialmente contaminados ...
Paulina Annette Ortega-Flores, Rodrigo Rangel, Jaqueline Valenzuela Meza   +2 more
doaj   +1 more source

Análisis de benchmarking y simulación para optimizar una planta comercial de tratamiento de aguas residuales

Tecnología y ciencias del agua
Es necesario un consumo sostenible de agua y energía para mitigar el daño ambiental causado por las actividades antrópicas. El sistema de tratamiento de aguas residuales más utilizado en el mundo es el de lodos activados convencionales.
Elda España-Gamboa, Neshly Rubalcava-Llamas, Rodrigo Valladares-Linares, Jorge Domínguez-Maldonado, Raúl Tapia-Tussell, Liliana Alzate-Gaviria   +5 more
doaj   +1 more source

Implementation of a Controller to Eliminate the Limit Cycle in the Inverted Pendulum on a Cart

Complexity, 2019
A frequency response-based linear controller is implemented to regulate the inverted pendulum on a cart at the inverted position. The objective is to improve the performance of the control system by eliminating the limit cycle generated by the dead-zone,
Mayra Antonio-Cruz, Victor Manuel Hernández-Guzmán, Ramón Silva-Ortigoza, Gilberto Silva-Ortigoza   +3 more
doaj   +1 more source

Influence of Atmospheric Stability on Wind Turbine Energy Production: A Case Study of the Coastal Region of Yucatan

Energies, 2023
Wind energy production mainly depends on atmospheric conditions. The atmospheric stability can be described through different parameters, such as wind shear, turbulence intensity, bulk Richardson number, and the Monin–Obukhov length.
Christy Pérez, Michel Rivero, Mauricio Escalante, Victor Ramirez, Damien Guilbert   +4 more
doaj   +1 more source

Monitoring and Dispersion of SO₂ Emissions from Power Plants Using UV Camera and AERMOD: A Case Study of Baja California Sur, Mexico

Atmosphere
This work assesses sulfur dioxide (SO2) emissions from two power plants in Baja California Sur, Mexico, using ground-based UV camera measurements and AERMOD dispersion modeling.
Benedetto Schiavo, Wolfgang Stremme, Jaqueline Valenzuela Meza, Rodrigo Rangel-Rodríguez, Cristina Carolina Carbajal-Aguilar, Paulina Annette Ortega-Flores   +5 more
doaj   +1 more source

Electrochemical Assessment of As-Deposited Co(OH)₂ by Electrochemical Synthesis: The Effect of Synthesis Temperature on Performance

Energies, 2019
In this paper, the influence of an electrolytic temperature bath was used in the electrodeposition process on the size, color, and shape of the as-deposited Co(OH)2, and the electrochemical performance was investigated. Three different temperatures of 25,
Vladimir Parra-Elizondo, Ana Karina Cuentas-Gallegos, Beatriz Escobar-Morales, José Martín Baas-López, Jorge Alonso Uribe-Calderón, Daniella Esperanza Pacheco-Catalán   +5 more
doaj   +1 more source

Sensorless Tracking Control for a “Full-Bridge Buck Inverter–DC Motor” System: Passivity and Flatness-Based Design

IEEE Access, 2021
A sensorless control based on the exact tracking error dynamics passive output feedback (ETEDPOF) methodology is proposed for executing the angular velocity trajectory tracking task on the “full-bridge Buck inverter–DC motor” system.
Ramon Silva-Ortigoza, Eduardo Hernandez-Marquez, Alfredo Roldan-Caballero, Salvador Tavera-Mosqueda, Magdalena Marciano-Melchor, Jose Rafael Garcia-Sanchez, Victor Manuel Hernandez-Guzman, Gilberto Silva-Ortigoza   +7 more
doaj   +1 more source

Two‐Dimensional Transition Metal Dichalcogenides Properties Enhanced by Nano‐ and Micro‐Scale Shape Control

MetalMat, Volume 3, Issue 1, March 2026.
This review explores current strategies for shaping two‐dimensional transition metal dichalcogenides (TMDs) beyond their planar form. It highlights how strain engineering, nanopatterning, and growth on complex substrates modulate their mechanical, optical, and electronic properties.
C. Grazianetti, G. Zambito, D. Campi, M. C. Giordano, F. Buatier de Mongeot, A. Molle, C. Martella   +6 more
wiley   +1 more source

Brosimum Alicastrum as a Novel Starch Source for Bioethanol Production

Energies, 2017
Ramon (Brosimum alicastrum) is a forest tree native to the Mesoamerican region and the Caribbean. The flour obtained from Ramon seeds is 75% carbohydrate, of which 63% is starch, indicating its potential as a novel raw material for bioethanol production.
Edgar Olguin-Maciel, Alfonso Larqué-Saavedra, Daisy Pérez-Brito, Luis F. Barahona-Pérez, Liliana Alzate-Gaviria, Tanit Toledano-Thompson, Patricia E. Lappe-Oliveras, Emy G. Huchin-Poot, Raúl Tapia-Tussell   +8 more
doaj   +1 more source