Results 41 to 50 of about 23,082 (299)
Numerical investigation on compact multimode dielectric resonator antennas of very high permittivity [PDF]
, 2008 Two well known numerical techniques, the Finite Element Method (FEM) and the Finite Integration in Time Domain (FIT), have been applied to study a low volume high permittivity dielectric resonator antenna.
Rotaru, M. +4 more
core +1 more source
Antenna subset selection at multi‐antenna relay with adaptive modulation
Wireless Communications and Mobile Computing, 2011 ABSTRACTIn this paper, we proposed several antenna selection schemes for cooperative diversity systems with adaptive transmission. The proposed schemes were based on dual‐hop relaying where a relay with multiple‐antenna capabilities at reception and transmission is deployed between the source and the destination nodes.
Seyeong Choi +3 more
openaire +3 more sources
Optimal Cooperative MAC Protocol with Efficient Selection of Relay Terminals [PDF]
, 2010 A new cooperative protocol is proposed in the context of wireless mesh networks. The protocol implements ondemand cooperation, i.e. cooperation between a source terminal and a destination terminal is activated only when needed.
Benoit Escrig, Escrig, Benoît
core +1 more source
Hidden Antennas for Vehicles [PDF]
, 2002 The introduction of new telematics and broadcast systems into vehicles has led to a requirement for multiple antennas that can be hidden from view.
Langley, Richard J., Batchelor, John C.
core +1 more source
IET Communications, 2022 In this paper, the secrecy performance in a MIMO cognitive radio (CR) relay network with energy harvesting (EH) and transmit antenna selection/maximal ratio combining (TAS/MRC) is invstigated, where the DF relaying protocol and multiple colluding passive
Xiao Jiang +4 more
doaj +1 more source
Joint Waveform Optimization and Antenna Position Selection for MIMO Radar Beam Scanning
Leida xuebao, 2022 In this study, under the Peak-to-Average Power Ratio (PAPR), energy, and binary (for antenna position selection) constraints, we proposed an antenna position selection and beam scanning method for colocated Multiple-Input Multiple-Output (MIMO) radar ...
Wen FAN +4 more
doaj +1 more source
α‐Synuclein aggregation landscape from phase separation to neurotoxic intermediates
FEBS Letters, EarlyView.Alpha‐synuclein aggregation in Parkinson's disease involves a complex landscape of transient intermediates, including oligomers, fibrils and liquid–liquid phase separation (LLPS). A view is emerging in which LLPS maturation into solid‐like condensates may contribute to the formation of neurotoxic species.
Silvia Arino +2 more
wiley +1 more source
The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers
Molecular Oncology, EarlyView.The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce +11 more
wiley +1 more source
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source
Antenna selection diversity for IEEE 802.11p [PDF]
IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013 Dependable vehicular communications systems are a key requirement for the implementation of intelligent transportation systems (ITS). Multiple antenna receivers enable the utilization of spatial diversity to increase the reliability as well as improve the availability.
Mona Shemshaki +2 more
openaire +1 more source