Results 141 to 150 of about 61,990 (319)
Advanced Engineering Materials, EarlyView.Additive manufacturing (AM) allows great geometric freedom for lightweight components. As parts are progressively optimized exploiting potentials in AM leading in smaller material cross sections, high pressure solution treating and aging (STA) treatments show an enormous potential for strongly improving material properties.
Mika León Altmann +4 more
wiley +1 more source
Mobile Sensor Waypoint Navigation via RF-Based Angle of Arrival Localization
International Journal of Distributed Sensor Networks, 2012 Over the past decade, wireless sensor networks have advanced in terms of hardware design, communication protocols, and resource efficiency. Recently, there has been growing interest in mobility, and several small-profile sensing devices that control ...
Isaac Amundson +3 more
doaj +1 more source
Angle-of-Arrival Estimation Using Difference Beams in Localized Hybrid Arrays. [PDF]
Sensors (Basel), 2021 Li H, Cheng Z.
europepmc +1 more source
Advanced Engineering Materials, EarlyView.The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner +22 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé +5 more
wiley +1 more source
Hardware Implementation and RF High-Fidelity Modeling and Simulation of Compressive Sensing Based 2D Angle-of-Arrival Measurement System for 2-18 GHz Radar Electronic Support Measures. [PDF]
Sensors (Basel), 2021 Wu C, Krishnasamy D, Elangage J.
europepmc +1 more source
Mapping ionospheric backscatter measured by the SuperDARN HF radars - Part 1: A new empirical virtual height model [PDF]
, 2008 Accurately mapping the location of ionospheric backscatter targets (density irregularities) identified by the Super Dual Auroral Radar Network (SuperDARN) HF radars can be a major problem, particularly at far ranges for which the radio propagation paths ...
Chisham, G., Sofko, G. J., Yeoman, T. K.
core
Advanced Engineering Materials, EarlyView.It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti +11 more
wiley +1 more source
Compressive Signal Processing for Estimating Range-Velocity-AoA in FMCW Radar Applications
IEEE AccessFrequency-modulated continuous wave (FMCW) radars are known to accurately estimate the parameters of targets with low-cost and low-power transceiver systems.
Eny Sukani Rahayu +3 more
doaj +1 more source
Angle Of Arrival Detection With Fifth Order Phase Operators
, 2014 In this paper, a fifth order propagator operators are proposed for estimating the Angles Of Arrival (AOA) of narrowband electromagnetic waves impinging on antenna array when its number of sensors is larger than the number of radiating sources. The array response matrix is partitioned into five linearly dependent phases to construct the noise projector
Khmou, Youssef, Safi, Said
openaire +2 more sources