Results 31 to 40 of about 57,448 (230)

Principle and applications of semiconductor optical amplifiers-based turbo-switches

open access: yesFrontiers of Optoelectronics, 2016
All-optical high-speed turbo-switches can effectively increase the switching speed using cascaded semiconductor optical amplifiers (SOAs). The overall recovery time or the bandwidth of turbo-switch was numerically analyzed with time-domain and frequency-domain SOA models.
Xuelin Yang, Weisheng Hu
openaire   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

open access: yesMolecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff   +11 more
wiley   +1 more source

Forward and backward RLS-DDCE processing in MIMO-OFDM spatial multiplexing receivers [PDF]

open access: yesAdvances in Radio Science, 2010
In this paper we present a novel approach in frequency domain channel estimation technique. Our proposal is based on the recursive least squares (RLS) algorithm combined with the decision making process called decision directed channel estimation (RLS ...
M. Muxfeldt, P. Beinschob, U. Zölzer
doaj   +1 more source

A Turbo Detection and Sphere-Packing-Modulation-Aided Space-Time Coding Scheme

open access: yes, 2007
Arecently proposed space-time block-coding (STBC) signal-construction method that combines orthogonal design with sphere packing (SP), referred to here as STBC-SP, has shown useful performance improvements over Alamouti’s conventional orthogonal design ...
Alamri, O, Hanzo, L, YEAP, B-J.
core   +1 more source

Iterative turbo beamforming for OFDM based hybrid terrestrial-satellite mobile system [PDF]

open access: yes, 2012
In the context of orthogonal frequency division multiplexing (OFDM)-based systems, pilot-based beamforming (BF) exhibits a high degree of sensitivity to the pilot sub-carriers.
Evans, B.G., Imran, M.A., Khan, A.H.
core   +1 more source

VIVID: A qPCR‐Based Platform for Sensitive and Quantitative In Vivo Tracking of Extracellular Vesicles

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces VIVID (Vesicle In Vivo Identification using DNA), a qPCR‐based platform that tracks PCR‐amplifiable DNA tags loaded in the EVs for accurate and quantifiable EV biodistribution in vivo. ABSTRACT Extracellular vesicles (EVs) represent promising carriers for nucleic acid therapeutics, offering advantages over synthetic nanoparticles ...
Oscar Boyadjian   +5 more
wiley   +1 more source

Turbo Decoding Using BCJR Algorithm [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2013
In this paper I will present some concepts related to turbo codes, the principle of their operation, and some results obtained by implementing the BCJR decoding algorithm known as the maximum aposteriori algorithm (MAP).
MORGOS Lucian
doaj  

Iterative decoding for MIMO channels via modified sphere decoding [PDF]

open access: yes, 2004
In recent years, soft iterative decoding techniques have been shown to greatly improve the bit error rate performance of various communication systems. For multiantenna systems employing space-time codes, however, it is not clear what is the best way to ...
Hassibi, B., Kailath, T., Vikalo, H.
core   +2 more sources

A Modular Bioinstructive Platform Reveals Mechanistic Insights into Additive‐Free, Topography‐Driven Osteogenesis

open access: yesAdvanced Healthcare Materials, EarlyView.
Engineered microparticle topographies direct human mesenchymal stem cell osteogenesis without biochemical additives. This osteogenic commitment is driven by canonical Hedgehog signaling and followed by temporal IGF‐II engagement. Two‐photon polymerization demonstrates spatial control, enabling the engineering of topographical gradients that pattern ...
Fatmah I. Ghuloum   +5 more
wiley   +1 more source

Direct-Drive Conical-Rotor Permanent Magnet Synchronous Generator for Turbo-Expander, Accounting for Adaptive Equilibrium of Axial Force

open access: yesIEEE Access, 2018
The permanent magnet synchronous generator (PMSG) has been widely employed in high-speed direct-drive turbo-expander for distributed energy generation.
Jiaobao Wang   +4 more
doaj   +1 more source

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