Results 61 to 70 of about 88,055 (289)
Advanced Materials, EarlyView.A green, freeform manufacturing approach that utilizes robust aqueous two‐phase systems to create intricate and scalable photonic structures and non‐planar mechanochromic hydrogel actuators from plant‐based hydroxypropyl cellulose. This approach broadens the structural possibilities of sustainable photonic devices and mechanochromic systems, offering ...
Xiao Song +14 more
wiley +1 more source
Diversity Properties of Multiantenna Small Handheld Terminals
EURASIP Journal on Advances in Signal Processing, 2004 Experimental data are presented on the viability of multiple antennas on small mobile handsets, based on extensive measurement campaigns at 2.14 GHz with multiple base stations, indoors, from outdoor to indoor, and outdoors.
Wim A. Th. Kotterman +2 more
doaj +1 more source
RAYLEIGH FADING - SHADOWING OF OUTDOOR CHANNELS ANALYSIS BASED ON SNR-PDF MODEL
Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ, 2019 The outdoor transmission channels condition in multiple wireless signals systems changes continuously due to signals transfer path characteristics. The path loss, multiple reflected rays Rayleigh fading and shadowing presents an important factor that ...
Ashwaq Q. Hameed
doaj +1 more source
Advanced Materials, EarlyView.Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief +12 more
wiley +1 more source
Improved model for multiple uncorrelated Rayleigh fading channels
Tongxin xuebao, 2007 An improved model for multiple uncorrelated Rayleigh channels was proposed.Compared with other models,this new model satisfied not only the stochastic characters of Rayleigh channel but also the uncorrelation between different fading channels.The ...
WANG Xin, FENG Guang-zeng
doaj +2 more sources
Performance of Turbo Interference Cancellation Receivers in Space-Time Block Coded DS-CDMA Systems
EURASIP Journal on Wireless Communications and Networking, 2008 We investigate the performance of turbo interference cancellation receivers in the space time block coded (STBC) direct-sequence code division multiple access (DS-CDMA) system.
Mashwama DerrickB +1 more
doaj +2 more sources
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019 An analysis of the Rayleigh scattering effect on the work of duplex single-fiber optical path without wavelength division multiplexing of counter channels using heterodyne detection was made in this paper. Characteristics of the Rayleigh scattering noise
V. N. Uryadov +3 more
doaj
Multilevel Block Coded 8-PSK Modulations Using Unequal Error Protection Codes for the Rayleigh Fading Channel [PDF]
, 1995 This paper introduces new block coded 8-PSK modulations with unequal error protection (UEP) capabilities for Rayleigh fading channels. The design of efficient block coded modulations (BCM) over 8-PSK signal sets, for the specific purpose of UEP, over ...
Kamasi, Tadeo +2 more
core +1 more source
Advanced Materials, EarlyView.This review highlights recent advances in electrospun nanofiber‐based triboelectric nanogenerators, emphasizing how material design, fiber architecture, and interface engineering collectively enhance output performance and mechanical durability. Key developments in porous, aligned, core‐shell, and hierarchical nanofibers are discussed alongside ...
MD Fajla Rabbi +3 more
wiley +1 more source
Temperature Retrievals for a Three-Channel Rayleigh Lidar System
AtmosphereWe present the performance of a middle atmosphere Rayleigh lidar system that employs three receiver channels. We characterize the biases in the density and temperature profiles retrieved from each of the receiver channels as well as the combined receiver
Satyaki Das, Richard Collins, Jintai Li
doaj +1 more source