Results 71 to 80 of about 49,696 (296)
Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading
Advanced Engineering Materials, EarlyView.This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev +2 more
wiley +1 more source
A Novel training-based MIMO channel estimation scheme for layered space-time systems in frequency selective wireless channels [PDF]
, 2009 New development in wireless technology using multiple antennas with appropriate space-time processing has recently become the new frontier of wireless communication systems due to the potential for providing very high spectral efficiency and enormous ...
Siyau, Ming F.
core
Advanced Engineering Materials, EarlyView.This work studies the anisotropic behavior of circular notched tensile specimens of Ni‐base superalloy single crystals during high‐temperature tensile creep along [001], [110], and [111]. Correlative scale‐bridging imaging of specimens reveals early rupture along [110] because 1) plastic deformation proceeds faster at notch center; 2) more (brittle ...
Leonardo Agudo Jácome +6 more
wiley +1 more source
Space-Time-Frequency Diversity for OFDM-Based Indoor Power Line Communication [PDF]
Radioengineering, 2015 In this paper, full rate space-time-frequency coding applied to orthogonal frequency division multiplexing based power line communication systems. The proposed systems yield both time and frequency diversity and keep transmission rate full.
G. Hacioglu
doaj
, 2022 Significant and difficult technical challenges are imposed today on wireless networks, for example increasing capacity and reliability to achieve full data rate, full propagation diversity, comprehensively improve transmission synchronization ...
Aljadai, A.
core
Advanced Functional Materials, EarlyView.Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou +5 more
wiley +1 more source
Research on space focusing virtual coverage based on orthogonal frequency time reversal method
Tongxin xuebao, 2019 To solve the problem of information leakage and coverage efficiency in ultra-dense wireless network,the orthogonal frequency-time reversal virtual coverage scheme was proposed.At first,different wireless reversal channels with lower correlation were ...
Yifang NIE, Fangwei LI
doaj +2 more sources
Orthogonal Time Frequency Space for Integrated Sensing and Communication: A Survey
CoRRSixth-generation (6G) wireless communication systems, as stated in the European 6G flagship project Hexa-X, are anticipated to feature the integration of intelligence, communication, sensing, positioning, and computation. An important aspect of this integration is integrated sensing and communication (ISAC), in which the same waveform is used for both ...
Eyad Shtaiwi +4 more
openaire +2 more sources
Orthogonal space-time block coding for frequency-domain equalization of CPM
2008 14th European Wireless Conference, 2008 In this paper, an orthogonal space-time (ST) block coding technique for continuous phase modulation (CPM) is proposed and is combined with frequency-domain equalization (FDE) to obtain high diversity gains over the frequency-selective fading channels. The proposed technique maintains the constant envelope and the phase continuity of the CPM waveforms ...
Oezguel, Baris +2 more
openaire +3 more sources
, 2006 —The achievable performance of channel coded spacetime trellis (STT) codes and space-time block (STB) codes transmitted over wideband channels is studied in the context of schemes having an effective throughput of 2 bits/symbol (BPS) and 3 BPS.
Liew, T.H., Hanzo, L.
core