Results 81 to 90 of about 52,116 (297)
Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
Synthesis‐free backscatter directional modulation communication using Van‐Atta arrays
IET Microwaves, Antennas & Propagation, 2022 Backscatter communication, an emerging ultra‐low‐power wireless communication paradigm, has been studied as a promising solution for wireless communications in some Internet‐of‐Things (IoT) applications.
Gaojian Huang +4 more
doaj +1 more source
A Dislocation Perspective on Strength and Toughness in Ceramics
Advanced Engineering Materials, EarlyView.Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley +1 more source
Impact of Imperfect Angle Estimation on Spatial and Directional Modulation
IEEE Access, 2020 In this paper, we investigate the impact of imperfect angle estimation (IAE) on spatial and directional modulation (SDM) systems, assuming that the signal experiences line of sight (LoS) propagation.
Hongyan Zhang +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal +3 more
wiley +1 more source
Secure spatial multiple access using directional modulation [PDF]
, 2018 WOS: 000422945400041In this paper, we introduce a secure multiple access scheme, which exploits the multipath structure of the channel to create a multi-user interference environment.
Hafez, Mohammed +9 more
core +1 more source
Directed homology and persistence modules
Journal of Applied and Computational TopologyAbstract We give a self-contained account on a construction for a directed homology theory based on modules over algebras, linking it to both persistence homology and natural homology. We study its first properties, among which relative homology and Mayer-Vietoris long exact sequences and a Kunneth formula.
openaire +3 more sources
Stretching the Printability Metric in Direct‐Ink Writing with Highly Extensible Yield‐Stress Fluids
Advanced Functional Materials, EarlyView.This study introduces “drawability” as a new metric for assessing printability in direct‐ink writing, focusing on gap‐spanning performance and speed robustness. By designing yield‐stress fluids with high extensibility, we demonstrate that extensional strain‐to‐break significantly enhances printability.
Chaimongkol Saengow +9 more
wiley +1 more source
Multipath-Enhanced Directional Modulation for Secure mmWave On-Body Communication
IEEE Open Journal of Antennas and PropagationThis paper proposes Directional Modulation (DM) for secure millimeter-wave (mmWave) on-body communication, where security is enhanced by leveraging multipath propagation.
Wasi Ur Rehman Khan +4 more
doaj +1 more source
Direct Modulation of Protein Level in Arabidopsis [PDF]
Molecular Plant, 2013 Dear Editor, The general way to probe functions of a protein in vivo is to perturb its level and then observe subsequent phenotypic changes.In plants,modulation of protein level is mainly carried out at DNA or RNA level,which is indirect and thus affected by stability of the target protein.Thus,experimental approaches to perturb protein level directly
Su, Lei +4 more
openaire +2 more sources