Results 11 to 20 of about 115 (103)

Diseño y cálculo de una excavadora con cadenas para una fuerza de excavación del cazo de 22,5 KN [PDF]

Revista de Odontologia da UNESP, 2018
El en presente Trabajo Fin de Grado se va a abordar el diseño, cálculo y dimensionamiento de una excavadora con cadenas que sea capaz de realizar una fuerza de excavación en el cazo de 22,5 KiloNewtons. La primera tarea a realizar es definir el tipo de máquina que se necesita para satisfacer las exigencias.
Peñarrubia Castro, Eduardo, Abad Blasco, Javier Óscar   +1 more
openaire   +6 more sources

Simpulum metálico tardoantiguo con mango inscrito del museo histórico de Baena: nuevo testimonio arqueológico del cristianismo en la campiña cordobesa

Antigüedad y Cristianismo, 2022
El Museo Histórico de Baena conserva entre sus fondos una singular pieza metálica de la que se desconocen su contexto arqueológico y lugar concreto de procedencia, aunque al parecer procede de un yacimiento situado en el término municipal de Castro del ...
José Antonio Morena López
doaj   +1 more source

Mangos decorados en terra sigillata hispánica procedentes del taller de La Cereceda (Arenzana de Arriba, La Rioja)

Salduie, 2022
Damos a conocer dos nuevos mangos de trullae (forma H.81) elaborados en terra sigillata hispánica elaborados en época flavia proce-dentes del alfar de La Cereceda (Arenzana de Arriba) perteneciente al centro alfarero de Tritium.
M.ª Pilar Sáenz Preciado, J. Carlos Sáenz Preciado   +1 more
doaj   +1 more source

Versatile Microfluidics Separation of Colloids by Combining External Flow with Light‐Induced Chemical Activity

Advanced Materials, Volume 35, Issue 25, June 22, 2023., 2023
A versatile method for separating colloids distinguished only by slight differences in their surface morphology (e.g., roughness, porosity, or polymer), is reported. It relies on combining the drift by the pressure‐driven shear flow of a photosensitive surfactant solution with a surface‐properties‐dependent positioning of the particles within the shear
Marek Bekir, Marcel Sperling, Daniela Vasquez Muñoz, Cevin Braksch, Alexander Böker, Nino Lomadze, Mihail N. Popescu, Svetlana Santer   +7 more
wiley   +1 more source

How to Make a Surface Act as a Micropump

Advanced Materials Interfaces, Volume 9, Issue 12, April 22, 2022., 2022
It is shown that any surface capable to absorb a large amount of photosensitive surfactant can act as a micropump. The mechanism is based on the generation of a continuous local light‐driven diffusioosmotic flow near the surface, where the strength and direction can be triggered by changing the intensity or wavelength of incoming light.
Marek Bekir, Anjali Sharma, Maren Umlandt, Nino Lomadze, Svetlana Santer   +4 more
wiley   +1 more source

Tuning the Volume Phase Transition Temperature of Microgels by Light

Advanced Functional Materials, Volume 32, Issue 2, January 10, 2022., 2022
A mechanism of light‐triggered reversible switching of the volume phase transition temperature (VPTT) of photo‐sensitive microgels consisting of poly‐N‐isopropyl acrylamide (PNIPAM) and acrylic acid (AAc) of different contents ranging between 1 and 20 mol% is uncovered. VPTT point is reversibly switched by light with a maximal temperature difference of
Joachim Jelken, Se‐Hyeong Jung, Nino Lomadze, Yulia D. Gordievskaya, Elena Yu. Kramarenko, Andrij Pich, Svetlana Santer   +6 more
wiley   +1 more source

ZnO, Cu-doped ZnO, Al-doped ZnO and Cu-Al doped ZnO thin films: Advanced micro-morphology, crystalline structures and optical properties

Results in Physics, 2023
The thin film coatings composed of: undoped ZnO film, ZnO doped with Al, ZnO doped with Cu, and ZnO simultaneously doped with Al and Cu (co-doping) were separately deposited on quartz substrates using RF sputtering method with different targets.
Laya Dejam, Slawomir Kulesza, Jamshid Sabbaghzadeh, Atefeh Ghaderi, Shahram Solaymani, Ștefan Țălu, Miroslaw Bramowicz, Mitra Amouamouha, Amir hossein Salehi shayegan, Amir hossein Sari   +9 more
doaj   +1 more source

Glacial connectivity and current population fragmentation in sky islands explain the contemporary distribution of genomic variation in two narrow‐endemic montane grasshoppers from a biodiversity hotspot

Diversity and Distributions, Volume 27, Issue 9, Page 1619-1633, September 2021., 2021
Abstract Aim Cold‐adapted biotas from mid‐latitudes often show small population sizes, harbour low levels of local genetic diversity and are highly vulnerable to extinction due to ongoing climate warming and the progressive shrinking of montane and alpine ecosystems.
Vanina Tonzo, Joaquín Ortego, Zhonge Hou   +2 more
wiley   +1 more source

La mirada perdida: los libros del escritor invidente Gábor Molnár sobre la Región Amazónica [PDF]

Revista Brasileira de História, 2019
RESUMEN Una de las personas con influencia marcada sobre la imagen de la Amazonia, y en general, de la imagen de Brasil en Hungría en la segunda mitad del siglo XX, fue Gábor Molnár, capataz de una hacienda y miembro de una fallida expedición amateur a ...
Mónika Szente-Varga
doaj   +1 more source

Mission Critical Microgrids: The Case of the Alcântara Space Center

Energies, 2022
This article reports the conception and design of a mission critical microgrid to serve a critical infrastructure application, namely, the Alcântara Space Launch Center, a government military facility in Brazil.
César Augusto Santana Castelo Branco, Fabricio Pereira Moraes, Hércules Araújo Oliveira, Pedro Bezerra Leite Neto, Osvaldo Ronald Saavedra, José Gomes de Matos, Clóvis Bosco Mendonça Oliveira, Luiz Antonio de S. Ribeiro, Alexandre Cunha Oliveira, Marcelo Fernado Augusto Júnior, Lucas de Paula Assunção Pinheiro, Rogério Moreira Cazo   +11 more
doaj   +1 more source