Results 81 to 90 of about 213,338 (218)

Autonomous Navigation in Large‐Scale Underground Environments Based on a Purely Topological Understanding of Tunnel Networks

Journal of Field Robotics, EarlyView.
ABSTRACT This work presents a non‐geometrical navigation approach based on a purely topological understanding of underground environments. By conceptualizing subterranean scenarios as a set of tunnels that intersect with each other, and taking a navigation approach based on topological instructions, we simplify the navigation problem to the sequential ...
Lorenzo Cano, Danilo Tardioli, Alejandro R. Mosteo   +2 more
wiley   +1 more source

Combination of indirect measurements to improve sigmal estimation [PDF]

, 2000
A form to combine two kinds of indirect measurements to be processed together is proposed for illconditioned problems. Linear individual measurements with unknown proportionality constants jointly considered determine a unique non-linear problem.
Elicabe, Guillermo Enrique, Frontini, Gloria Lia   +1 more
core   +1 more source

Social, Technological, Economic, and Policy Factors in the Circular Economy Transition in Brazil

Sustainable Development, EarlyView.
ABSTRACT A well‐functioning circular economy (CE) integrates resilience across economic, environmental, and social dimensions. This study identifies key drivers and barriers to Brazil's CE transition through 20 semi‐structured interviews with stakeholders. Major sociocultural barriers include inadequate education and limited CE awareness, while growing
Alejandro Gallego‐Schmid, Ana Belén Guerrero, Ricardo Rebolledo‐Leiva, Alvaro Elorrieta‐Mendoza, Denisse Milagros Paredes Cotohuanca, Raphael Ricardo Zepon Tarpani, Rodrigo Salvador, Murillo Vetroni Barros, Claudia E. Henninger, Leonardo Vásquez‐Ibarra   +9 more
wiley   +1 more source

MANZANA DESHIDRATADA FORTIFICADA CON VITAMINA E UTILIZANDO LA INGENIERÍA DE MATRICES: AIR DRIED APPLE FORTIFIED WITH VITAMIN E USING MATRIX ENGINEERING

Vitae, 2007
Se ha evaluado el tiempo de vida de manzana, fortificada con vitamina E, deshidratada por aire a 40°C, en función de la estabilidad de la vitamina E y de los atributos de calidad, color y textura a diferentes condiciones de almacenamiento.
Misael CORTÉS, Alexander OSORIO, Eduard GARCÍA   +2 more
doaj  

IMPREGNACIÓN DE UCHUVA (Physalis peruviana L.) DE FORMA SEMIESFÉRICA CON UNA EMULSIÓN FORTIFICANTE

Biotecnología en el Sector Agropecuario y Agroindustrial
La fortificación de frutas con componentes activos (CA) mediante el proceso de impregnación a vacío (IV) es una alternativa para el desarrollo de alimentos funcionales.
MISAEL CORTÉS-RODRÍGUEZ, EDGAR ANTONIO HERRERA-HERRERA, JESÚS HUMBERTO GIL-GONZÁLEZ   +2 more
doaj   +1 more source

Empleo del estropajo común (Luffa cylindrica) en la remoción de contaminantes.

Revista de Investigación Agraria y Ambiental, 2017
Interesa a la ingeniería, el desarrollo biotecnológico de técnicas de tratamiento de agua para la remoción de contaminantes, aprovechando las propiedades de las fibras de Luffa cylindrica (FLc).
Ricardo Ignacio Pereira-Martínez, Juan Fernando Muñoz-Paredes, Diego Hernán Peluffo-Ordoñez   +2 more
doaj   +1 more source

Covalent Functionalization of NiFe Layered Double Hydroxides using Tris(Hydroxymethyl)Aminomethane

Small, EarlyView.
Covalent functionalization of NiFe layered double hydroxides with tris(hydroxymethyl)aminomethane enables controlled growth, enhanced structural order, and improved processability. Temporary TRIS anchoring promotes stable water‐based inks and binder‐free electrode fabrication, leading to enhanced oxygen evolution activity and long‐term stability under ...
Alvaro Seijas Da Silva, Federico Juarez‐Dominguez, Víctor Oestreicher, Martín Mizrahi, Diego Hunt, Bruno J. C. Vieira, Joao C. Waerenborgh, Valeria Ferrari, Gonzalo Abellán   +8 more
wiley   +1 more source

POTENCIACIÓN DE LA CAPACIDAD ANTIOXIDANTE DE FRESA (Fragaria ananassa Duch.) POR INCORPORACIÓN DE VITAMINA E UTILIZANDO LA TÉCNICA DE IMPREGNACIÓN A VACÍO ENHANCEMENT OF THE ANTIOXIDANT CAPACITY OF STRAWBERRIES (Fragaria ananassa Duch.) BY INCORPORATION OF VITAMIN E USING THE VACUUM IMPREGNATION TECHNIQUE

Vitae, 2010
El presente estudio evaluó la capacidad antioxidante y el contenido de vitamina E en fresas fortificadas con vitamina E sintética (dl-α-tocoferol acetato) por la técnica de impregnación al vacío.
Ana María RESTREPO D, Misael CORTÉS R, Benjamín ROJANO   +2 more
doaj  

Mechanochemical Fullerene Nanoencapsulation in Amino‐Functionalized ZIF‐12 for Visible‐Light Disinfection of Waterborne Viruses and Bacteria

Small, EarlyView.
A solvent‐minimized mechanochemical strategy enables the synthesis of C₆₀‐encapsulated amino‐functionalized ZIF‐12 as a visible‐light‐driven bifunctional photocatalyst. Synergistic charge separation enhances hydroxyl radical generation, achieving efficient viral in saline water and bacterial inactivation in river water under environmentally relevant ...
Noelia Rodríguez‐Sánchez, Menta Ballesteros, Carsten Prinz, Inés Canosa, Amando Flores Díaz, Biswajit Bhattacharya, A. Rabdel Ruiz‐Salvador, Franziska Emmerling   +7 more
wiley   +1 more source

Droughts and human impact in the ancient Uaymil region of the Maya lowlands inferred from a 2800‐year sedimentary archive at Lake Kaná, Mexico

Boreas, EarlyView.
The relationship between the climate and societal transformation in Maya lowlands has long been debated, particularly the role of drought in shaping the civilization trajectory during the Classic Period. A high‐resolution, multi‐proxy, geochemical record from Lake Kaná, located in the underexplored Uaymil region of the Yucatán Peninsula in Mexico ...
Haydar B. Martinez‐Dyrzo, Priyadarsi D. Roy, Benjamin Gwinneth, Irma G. Vargas‐Martinez, Alejandro A. Aragon‐Moreno, Roger Medina‐Gonzales   +5 more
wiley   +1 more source