Results 91 to 100 of about 1,385,457 (289)

Adaptive antenna on cascaded butler matrices system

open access: yes, 2010
This article describes a smart antenna system with potential for vehicle communication system application. The system uses integrating low noise amplifiers with cascaded Butler Matrices.
Rahim, SKA   +4 more
core   +1 more source

ATP‐Mediated Bidirectional Communication Between Natural and Artificial Cells for Controlled Bioreactions

open access: yesAdvanced Functional Materials, EarlyView.
Establishment of bidirectional communication behavior between natural and artificial cells. The first type of communication from natural dendritic cells to artificial polymeric cells was achieved via ATP release after cell lysis. The released ATP was taken up via gated UV‐controlled permeability increase of the polymeric membrane for performing ...
Ilona Kalte   +6 more
wiley   +1 more source

Cascade and parallel combination (CPC) of adaptive filters for estimating heart rate during intensive physical exercise from photoplethysmographic signal

open access: yesHealthcare Technology Letters, 2018
Photoplethysmographic (PPG) signal is getting popularity for monitoring heart rate in wearable devices because of simplicity of construction and low cost of the sensor. The task becomes very difficult due to the presence of various motion artefacts.
Mohammad Tariqul Islam   +4 more
doaj   +1 more source

Performance analysis of fixed gain amplify-and-forward relaying with time-efficient cascaded channel estimation

open access: yes, 2011
In a cooperative system with an amplify-and-forward relay, the cascaded channel training protocol enables the destination to estimate the source-destination channel gain and the product of the source-relay (SR) and relay-destination (RD) channel gains ...
Mehta, Neelesh B   +5 more
core   +1 more source

An Epigenetic Fate Converter Based on Nuclei‐Targeting Lipid Nanoparticles Drives Neuronal Programming of Stem Cells for Spinal Cord Repair

open access: yesAdvanced Functional Materials, EarlyView.
Schematic illustration of LNP‐MPG nuclei‐targeting delivery of HMW‐FGF2 promoting histone acetylation to regulate the fate of DPSCs and treat spinal cord injury. LNPs components include pHMW‐FGF2 plasmid, DSPC, Dlin‐MC3‐DMA, cholesterol, and PEG2000, and are modified with MPG to form HMW‐FGF2@LNP‐MPG (HLM). HLM nuclei‐targets DPSCs to deliver HMW‐FGF2,
Heng Zhou   +6 more
wiley   +1 more source

Frequency domain channel estimation and equalization for distri-buted STBC-SC-FDE systems with amplify-and-forward relaying

open access: yesTongxin xuebao, 2013
Frequency domain channel estimation and equalization w ied for D-STBC-SC-FDE systems with ampl-ify-and-forward relaying over frequency-selective fading channels, and a training-based least-squares channel estima-tion algorithm was proposed.
Yong-chuan WANG, Zi-li CHEN
doaj   +2 more sources

Cascaded Phase Modulation for AMCC Superimposition Toward MFH Employing CPRI

open access: yesIEEE Photonics Journal, 2017
A cascaded phase modulation is proposed for auxiliary management and control channel (AMCC) superimposition toward mobile fronthaul employing common public radio interface (CPRI).
Jian Dong, Jie Yang
doaj   +1 more source

An Adaptive Inhibitory WSe2 Transistor for Retinomorphic In‐Sensor Image Processing

open access: yesAdvanced Functional Materials, EarlyView.
Conventional retinomorphic devices typically require deliberate gate‐bias tuning for each illumination condition. In this paper, we demonstrate an adaptive inhibitory WSe2 transistor that uses photo‐induced regime shift between the subthreshold and accumulation modes to achieve decision‐free, intensity‐adaptive image processing within a single pixel ...
Juhwan Baek   +12 more
wiley   +1 more source

End-to-End Characterization of Cascaded RF/FSO Relaying Under Dust Fading

open access: yesTechnologies
This paper investigates the performance of a cascaded dual-hop relay system comprising a radio-frequency (RF) hop followed by a free-space optical (FSO) hop.
Maged Abdullah Esmail
doaj   +1 more source

Cascaded Pedestrian Detection Based on ACF and Improved Channel Features by PCANet [PDF]

open access: yes, 2017
As the Aggregate Channel Features(ACF) algorithm has many false detection windows,a coarse-to-fine cascaded pedestrian detection algorithm is proposed.ACF is employed as the coarse detector,and then the channel features are improved to filter out false ...
HUANG Peng,YU Fengqin
core   +1 more source

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