Results 81 to 90 of about 3,670,840 (396)
, 2010 This paper experimentally investigates and compares the performance of the free space optics system employing three different modulation schemes, on-off keying (OOK) with nonreturn- to-zero (NRZ) and return-to-zero (RZ) and the binary phase shift keying (
Z. Ghassemlooy +12 more
core +1 more source
An open-path, hand-held laser system for the detection of methane gas [PDF]
, 2005 We have developed an open-path hand-held gas detector incorporating a distributed feedback InGaAs laser diode at 1.65 µm. Incorporated into a hand-held transceiver unit, the emitted laser beam is backscattered from nearby surfaces, collected and focused ...
Padgett, M +13 more
core +1 more source
Increasing speech intelligibility and naturalness in noise based on concepts of modulation spectrum and modulation transfer function [PDF]
, 2021 This study focuses on identifying effective features for controlling speech to increase speech intelligibility under adverse conditions. Previous approaches either cancel noise throughout speech presentation or preprocess speech by controlling its ...
Ngo, Thuanvan +2 more
core +1 more source
Optics Express, 2016 Multicarrier intensity modulation of a bandwidth-limited long-wavelength VCSEL is exploited combined to direct detection to achieve very high capacity simple systems for short-reach applications.
A. Gatto, D. Argenio, P. Boffi
semanticscholar +1 more source
FEBS Letters, EarlyView.Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura +2 more
wiley +1 more source
FEBS Letters, EarlyView.Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas +3 more
wiley +1 more source
Novel Results on SNR Estimation for Bandlimited Optical Intensity Channels
Sensors, 2023 In a previous work of the author about non-data-aided estimation of the signal-to-noise ratio (SNR) for bandlimited optical intensity channels, a couple of limitations have been identified in terms of error performance and computational complexity.
Wilfried Gappmair
doaj +1 more source
Unlocking Spectral Efficiency in Intensity Modulation and Direct Detection Systems
IEEE Journal on Selected Areas in Communications, 2015 A number of inherently unipolar orthogonal frequency division multiplexing (OFDM) modulation schemes have been introduced recently in an attempt to improve the energy efficiency of OFDM-based intensity modulation and direct detection (IM/DD) systems. All
D. Tsonev, S. Videv, H. Haas
semanticscholar +1 more source
[Intensity modulated radiation therapy]
Igaku butsuri : Nihon Igaku Butsuri Gakkai kikanshi = Japanese journal of medical physics : an official journal of Japan Society of Medical Physics, 2001 A preliminary goal of radiation therapy is to deliver radiation doses that conform to targets, while minimizing dose to surrounding normal tissue. Intensity-modulated radiation therapy (IMRT) delivered with a multileaf collimator (MLC) is a promising resource to achieve conformal therapy.
Akiyama, Yoshihisa +2 more
openaire +2 more sources
An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane
FEBS Letters, EarlyView.Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa +3 more
wiley +1 more source