Results 21 to 30 of about 203,301 (156)

Recent Developments of Reflectarray Antennas for Reconfigurable Beams Using Surface-Mounted RF-MEMS

International Journal of Antennas and Propagation, 2012
Some of the most recent developments in reconfigurable reflectarrays using surface-mounted RF-MEMS, which have been developed at the Universidad Politécnica de Madrid, are summarized in this paper.
Eduardo Carrasco, Mariano Barba, Manuel Arrebola, Jose A. Encinar   +3 more
doaj   +1 more source

A new space technology for ocean observation: the SMOS mission

Scientia Marina, 2012
Capability for sea surface salinity observation was an important gap in ocean remote sensing in the last few decades of the 20th century. New technological developments during the 1990s at the European Space Agency led to the proposal of SMOS (Soil ...
Jordi Font, Joaquim Ballabrera-Poy, Adriano Camps, Ignasi Corbella, Núria Duffo, Israel Duran, Mikhail Emelianov, Luis Enrique, Pere Fernández, Carolina Gabarró, Cristina González, Verónica González, Jérôme Gourrion, Sébastien Guimbard, Nina Hoareau, Agustí Julià, Sofia Kalaroni, Anna Konstantinidou, Alfredo L. Aretxabaleta, Justino Martínez, Jorge Miranda, Alessandra Monerris, Sergio Montero, Baptiste Mourre, Miriam Pablos, Fernando Pérez, Maria Piles, Marcos Portabella, Roberto Sabia, Joaquín Salvador, Marco Talone, Francesc Torres, Antonio Turiel, Mercè Vall-Llossera, Ramón Villarino   +34 more
doaj   +1 more source

Generalized consistent estimation in arbitrarily high dimensional signal processing

, 2008
La teoría del procesado estadístico de la señal halla un amplio abanico de aplicaciones en los campos de las comunicaciones de datos, así como también en el procesado con agrupaciones de sensores.
F. Rubio
semanticscholar   +1 more source

Metamateriales en microondas y antenas [PDF]

, 2003
Desde la década de los '80 una gran variedad de materiales artificiales (no existentes en la naturaleza) son intensivamente estudiados por sus inusitadas y sorprendentes propiedades electromagnéticas (como partes reales de permitividad eléctrica y ...
González Arbesú, José María, Romeu Robert, Jordi, Úbeda Farré, Eduard   +2 more
core   +3 more sources

AOCS Requirements and Practical Limitations for High‐Speed Communications on Small Satellites

International Journal of Aerospace Engineering, Volume 2019, Issue 1, 2019., 2019
In recent years, an increasing number of countries have shown a growing interest in developing their indigenous space capacity building through national small satellite programs. These satellites, which were initially focused on educational and training missions, currently are more scientific and operational‐oriented. Thus, small satellite missions are
Fernando Aguado-Agelet, Andrés Eduardo Villa, Marcos Arias-Acuña, Francisco Javier Díaz-Otero, Jeremy Straub   +4 more
wiley   +1 more source

The Use of Sensors for Monitoring the Feeding Process and Adjusting the Feed Supply Velocity in Fish Farms

Journal of Sensors, Volume 2018, Issue 1, 2018., 2018
Aquaculture is a growing industry, and its sustainability is crucial. One of its major environmental impacts is the uneaten feed that pollutes the water. To minimize the uneaten feed, many systems have been developed. Nevertheless, current systems can be improved by considering the fish position in the tank and the falling feed.
Lorena Parra, Laura García, Sandra Sendra, Jaime Lloret, Romeo Bernini   +4 more
wiley   +1 more source

Behavior metrics: An open-source assessment tool for autonomous driving tasks

SoftwareX
The development and validation of autonomous driving solutions require testing broadly in simulation. Addressing this requirement, we present Behavior Metrics (BM) for the quantitative and qualitative assessment and comparison of solutions for the main ...
Sergio Paniego, Roberto Calvo-Palomino, JoséMaría Cañas   +2 more
doaj   +1 more source

Systems and WBANs for Controlling Obesity

Journal of Healthcare Engineering, Volume 2018, Issue 1, 2018., 2018
According to World Health Organization (WHO) estimations, one out of five adults worldwide will be obese by 2025. Worldwide obesity has doubled since 1980. In fact, more than 1.9 billion adults (39%) of 18 years and older were overweight and over 600 million (13%) of these were obese in 2014. 42 million children under the age of five were overweight or
Maali Said Mohammed, Sandra Sendra, Jaime Lloret, Ignacio Bosch, Denise Ferebee   +4 more
wiley   +1 more source

Propagation at mmW Band in Metropolitan Railway Tunnels

Wireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 2018
The next generation of mobile communications, 5G, will provide a wideband network based on microwave and millimeter‐wave (mmW) communication radio links with the goal of fulfilling the strict and severe requirements of the future test cases. In particular, this paper research is focused on mmW bands in metropolitan railway tunnels.
Ana González-Plaza, César Calvo-Ramírez, César Briso-Rodríguez, Juan Moreno García-Loygorri, David Oliva, José I. Alonso, Eva Antonino-Daviu   +6 more
wiley   +1 more source

Urban Lawn Monitoring in Smart City Environments

Journal of Sensors, Volume 2018, Issue 1, 2018., 2018
Control over water usage for irrigation purposes is a key factor in order to achieve the sustainability in agriculture. The irrigation of urban lawns represents a high percentage of the urban water usage. The use of information and communication technology (ICT) offers the possibility of monitoring the grass state in order to adjust the irrigation ...
José Marín, Lorena Parra, Javier Rocher, Sandra Sendra, Jaime Lloret, Pedro V. Mauri, Alberto Masaguer, Martin E. Omaña   +7 more
wiley   +1 more source