Results 111 to 120 of about 405,425 (327)
User Assignment with Distributed Large Intelligent Surface (LIS) Systems
, 2017 In this paper, we consider a wireless communication system where a large intelligent surface (LIS) is deployed comprising a number of small and distributed LIS-Units.
Chitti, Krishna +3 more
core +1 more source
Secrecy Rate Maximization for Intelligent Reflecting Surface Assisted Multi-Antenna Communications [PDF]
IEEE Communications Letters, 2019 We investigate transmission optimization for intelligent reflecting surface (IRS) assisted multi-antenna systems from the physical-layer security perspective.
Hong Shen +4 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
The Antinomy of Teleological Judgment [PDF]
, 2015 The antinomy of teleological judgment is one of the most controversial passages of Kant’s "Critique of the Power of Judgment". Having developed the idea of an explanation of organized beings by mechanical and teleological natural laws
Goy, Ina
core
Beyond Massive-MIMO: The Potential of Positioning with Large Intelligent Surfaces
, 2017 We consider the potential for positioning with a system where antenna arrays are deployed as a large intelligent surface (LIS), which is a newly proposed concept beyond massive-MIMO where future man-made structures are electronically active with ...
Edfors, Ove, Hu, Sha, Rusek, Fredrik
core +1 more source
Z‐Scheme Water Splitting Systems Based on Solid‐State Electron Conductors
Advanced Functional Materials, EarlyView.This review examines the latest advances in Z‐scheme overall water splitting (OWS) systems for solar hydrogen production. These systems consist of suspended or immobilized hydrogen evolution photocatalysts (HEPs) and oxygen evolution photocatalysts (OEPs).
Chen Gu +3 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu +9 more
wiley +1 more source
Fast Wide Beam Adjustment of Reconfigurable Intelligent Surfaces in Practical Deployments
IEEE AccessReconfigurable Intelligent Surface (RIS) is a promising way to increase the coverage and capacity of existing and future wireless systems. For that, the RIS reflection coefficients need to be properly adjusted.
Arseny Poyda +3 more
doaj +1 more source
Just below the surface: developing knowledge management systems using the paradigm of the noetic prism [PDF]
, 2004 In this paper we examine how the principles embodied in the paradigm of the noetic prism can illuminate the construction of knowledge management systems.
Gammack, J., Hobbs, V.J., Pigott, D.
core +1 more source
Photoswitching Conduction in Framework Materials
Advanced Functional Materials, EarlyView.This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez +4 more
wiley +1 more source