Buscar recursos académicos

Encontrá libros, artículos, revistas, tesis y otros recursos académicos. Buscá, elegí el resultado correcto y accedé al contenido.

Qué reúne NODOVOX Discovery: catálogos institucionales, recursos electrónicos, revistas de acceso abierto, colecciones disponibles y enlaces de consulta académica.

Resultados

115 resultados encontrados.

Tipos de recurso: Libro electrónico Artículo Revista Tesis Capítulo
Búsqueda académica
Effect of microwaves on growth of Nigella sativa seedlings and Callus development.
Artículo
Acceso abierto Artículo DOAJ
Osama Mohammed Saeed et al · University of Mosul, College of Education for Pure Science · 2009 · ISSN 1812-125X
Abstract The research included the effect of microwaves on Nigella sativa seedling ,which grown on the culture media for germination of seeds and seedling growth. This was done by exposure of seeds to microwaves for diff...
LCC TENDOkVkdWNhdGlvbg~~; LCC:Science (General)Idioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
The use of microwaves to combat the Callosobruchus maculatus (Fab) (Bruchidae: Coleoptera), the effect on its life
Artículo
Acceso abierto Artículo DOAJ
Ayad Ismaeel et al · University of Mosul, College of Education for Pure Science · 2008 · ISSN 1812-125X
Abstract Callosobruchus maculatus (Fab) is considered one of the important agricultural pests that infests legumes in general and especially cowpea and chickpea resulting devastating damages to these yields. Thus, the a...
LCC TENDOkVkdWNhdGlvbg~~; LCC:Science (General)Idioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Huygens’ metasurfaces from microwaves to optics: a review
Artículo
Acceso abierto Artículo DOAJ
Chen Michael et al · Wiley · 2018 · ISSN 2192-8606
In this article, the basic principles and the main applications of Huygens’ metasurfaces (HMSs) are reviewed from microwaves to optics. In general, HMSs comprise a thin layer of orthogonal electric and magnetic dipoles...
LCC TENDOlBoeXNpY3M~Idioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Microwave Inter-Connections and Switching by means of Carbon Nano-tubes
Artículo
Acceso abierto Artículo DOAJ
Daniela Dragoman et al · SAGE Publishing · 2011 · ISSN 1847-9804
In this work, carbon nanotube (CNT) based interconnections and switches will be reviewed, discussing the possibility to use nanotubes as potential building blocks for signal routing in microwave networks. In particular, ...
LCC LCC:Materials of engineering and construction. Mechanics of materials; TENDOlRlY2hub2xvZ3k~Idioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Chemical treatment of asphalt with sulfur sludge using microwave radiation
Artículo
Material complementario disponible Artículo DOAJ
Wafaa Al-Aragi · University of Mosul, College of Education for Pure Science · 2005 · ISSN 1812-125X
Chemical modification of asphalt had been used to modify the rheological properties by treatment with sulphur at different experimental conditions. The modification achieved by using application of microwaves (microwave ...
LCC TENDOkVkdWNhdGlvbg~~; LCC:Science (General)Idioma eng
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
Measurement with quasi-isotropic antenna of CEM coming from multisource in a reverberation chamber and in a car
Artículo
Acceso abierto Artículo DOAJ
Raquel Aline A. Rodrigues et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
The concern about the health risks that wireless technology can provide has grown globally thanks to the growing use of the devices by the population, by the finding that the public exposure to EMFs from the devices can ...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A CMOS UWB transmitter with Vivaldi Array for Ultra-fast Beam steering microwave radar
Artículo
Acceso abierto Artículo DOAJ
Alexandre M. De Oliveira et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
This work presents a new Ultra Wide Band (UWB) beamforming fifth-order derivative Gaussian pulse transmitter with dual small Vivaldi antennas for remote acquisition of vital signals in impulse radar applications. The sys...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A High Gain Super Wideband Metamaterial Based Antenna
Artículo
Acceso abierto Artículo DOAJ
Ishita Aggarwal et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2021 · ISSN 2179-1074
Abstract The paper proposes a high gain, metamaterial based super wideband (SWB) antenna. The SWB antenna has two inverted U slots which are responsible for two notches at 3.5 GHz and 5.5 GHz frequencies. A flower-shaped...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A Hybrid Path Loss Prediction Model based on Artificial Neural Networks using Empirical Models for LTE And LTE-A at 800 MHz and 2600 MHz
Artículo
Acceso abierto Artículo DOAJ
Bruno J. Cavalcanti et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract This article presents the analysis of a hybrid, error correction-based, neural network model to predict the path loss for suburban areas at 800 MHz and 2600 MHz, obtained by combining empirical propagation model...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A LiDAR Architecture Based on Indirect ToF For Autonomous Cars
Artículo
Acceso abierto Artículo DOAJ
Luis G. Da Silva et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2021 · ISSN 2179-1074
Abstract A LiDAR architecture for autonomous cars is presented and validated by numerical and experimental results. The proposed scheme is based on indirect time-of-flight principle based on continuous-wave pseudorandom ...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A Low Cost, High-Reliability Receiver System for Reading Passive RFID Tags
Artículo
Acceso abierto Artículo DOAJ
Nicollas R. de Oliveira et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2021 · ISSN 2179-1074
Abstract Radio-Frequency Identification (RFID) is one of the leading enabling technologies of the Internet of Things (IoT) at low cost and high granularity scenarios. The cost of implementing IoT applications concerns th...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A Multi-Plasmonic Approach for Simultaneous Measurements based on a D-Shaped Photonic Crystal Fiber Sensor: from Temperature to Optical Dispersion
Artículo
Material complementario disponible Artículo DOAJ
Amanda F. Romeiro et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2023 · ISSN 2179-1074
Abstract The growing demand for multiparameter sensors includes compact devices accompanied by simple calibration processes to distinguish the outputs from each other. This paper evaluates a scheme to determine multiple ...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
A New Conductive Ink for Microstrip Antenna and Bioinspired FSS Designs on Glass and Fiberglass Substrates
Artículo
Acceso abierto Artículo DOAJ
Marcelo David S. Mesquita et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract This paper describes an investigation of the possibility of using a new conductive ink, insted of copper clad laminates, in the manufacturing of microstrip patch antennas on glass and fiberglass substrates and o...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A New Theoretical Approach of Studying Resonances in Single Finline Transitions
Artículo
Acceso abierto Artículo DOAJ
E. Brenna et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2023 · ISSN 2179-1074
Abstract In this article an innovative method of studying and removing the resonances, inherently exhibit by some waveguide to microstrip transitions, is presented. By modeling an equivalent circuit, this new approach al...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A New Triple Band Microstrip Fractal Antenna for C-band and S-band Applications
Artículo
Acceso abierto Artículo DOAJ
Edwin L. Barreto et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract Recently research show that some parameters such as the shapes of antenna patch and the ground plane when geometrically altered produces changes in the current density distribution of the planar structure and co...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A Novel Fully Integrated 4-Bit IFM Subsystem Using Band-Stop Filters
Artículo
Acceso abierto Artículo DOAJ
S. R. O de Souza et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2020 · ISSN 2179-1074
Abstract In this paper a 2-4 GHz microstrip IFM (Instantaneous Frequency Measurement) subsystem that uses Wilkinson power dividers, frequency discriminators based on band-stop filters and a DC arduino section is reported...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A Novel Wideband Magnetoelectric Dipole Antenna with Circular Polarization Applied to CubeSat
Artículo
Acceso abierto Artículo DOAJ
Bruno Matias de Sousa et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2024 · ISSN 2179-1074
Abstract In this work a broadband Magnetoelectric (ME) dipole antenna for the Global Navigation Satellite System (GNSS) applied to nanosatellites is proposed. The antenna consists of a reflective cavity with open walls c...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A Performance Evaluation of WLAN-Femtocell-LTE beyond the Capacity Crunch. Does Femtocell have to overcome WLAN or can they coexist in HetNets?
Artículo
Acceso abierto Artículo DOAJ
K.C. Silva et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract This paper originates from a practical experiment based on Mesh Networks. The promising results obtained from this experiment prompted us to discuss in greater depth whether Wireless Local Area Networks (WLAN) a...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A Reconfigurable Frequency Selective Surface for Wi-Fi Application
Artículo
Acceso abierto Artículo DOAJ
Thamyris da Silva Evangelista et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2023 · ISSN 2179-1074
Abstract This work presents the development of a reconfigurable frequency selective surface (RFSS) for application in the 2400-2483.5 MHz band, standard IEEE 802.11b/g/n (Wi-Fi). The proposed RFSS is based on the four-ar...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A Small Quad-Band Monopole Antenna with Folded Strip Lines for WiMAX/WLAN and ITU Applications
Artículo
Acceso abierto Artículo DOAJ
Y. Zehforoosh et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract In this article, a small Quad-Band microstrip patch antenna with folded strip lines for WiMAX/WLAN and ITU Applications is presented. This antenna consists eight symmetrical rectangular folded strip lines with 2...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A Wideband and Wide Axial Ratio Bandwidth Circularly Polarized Antenna Loaded with Circular Ring Slot
Artículo
Acceso abierto Artículo DOAJ
Shilpee Patil et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2022 · ISSN 2179-1074
Abstract The presented model for wideband circularly polarized microstrip antenna is an improved version of the previous models which is widely applicable to satellite, microwave relay and radar. The designed circularly ...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A design proposal for ultrawide band frequency selective surface
Artículo
Acceso abierto Artículo DOAJ
Francisco Carlos Gurgel da Silva Segundo et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
In this paper a three layer FSS is described which provides a ultrawide band (UWB) response. The layers use plain rectangular patches, and rectangular patches with one or two notches which provide multi-band responses; b...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A methodology for performance evaluation of LEDs based on ac small signal analysis
Artículo
Acceso abierto Artículo DOAJ
Isnaldo J. Souza Coêlho et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
This paper shows fundamentals and results that support a promising methodology for evaluation in locus of a LED from its own radiating signal, and that allows monitoring of its aging by remote inference on which degradat...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
A reflectarray Using a Dielectric Discretized Concave Mirror Based on Electromagnetic Band Gap
Artículo
Acceso abierto Artículo DOAJ
Gustavo Maciulis Dip et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2025 · ISSN 2179-1074
Abstract This paper presents a reflectarray antenna with an innovative dielectric mirror in the form of a discretized concave reflector. The mirror, manufactured via 3D printing, combines dielectric and air layers, formi...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access