Results 81 to 90 of about 5,091,176 (291)
New design method of space-frequency coding and fast detection algorithm
Tongxin xuebao, 2009 To analyze the performance of space-frequency codes,the Chernoff bound was used in the existing literatures,but it was too loose to conclude the diversity order and coding gain simultaneously.Therefore,a new view of the transmission of space-frequency ...
WANG Xin, WEI Ji-bo, LI Ying
doaj
Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential
FEBS Letters, EarlyView.Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta +3 more
wiley +1 more source
Frequency Diverse Coprime Arrays With Coprime Frequency Offsets for Multitarget Localization
IEEE Journal of Selected Topics in Signal Processing, 2017 Different from conventional phased-array radars, the frequency diverse array (FDA) radar offers a range-dependent beampattern capability that is attractive in various applications. The spatial and range resolutions of an FDA radar are fundamentally limited by the array geometry and the frequency offset.
Si Qin +3 more
openaire +1 more source
Structure‐forward targeting of claudins with synthetic binders
FEBS Letters, EarlyView.Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley +1 more source
Discerning protein pools by selective staining with self‐labeling tags
FEBS Letters, EarlyView.Cell surface proteins have an intra‐ and extracellular pool. Combining genetic fusion to self‐labeling tags that can be addressed with small molecule fluorophores allows separating these pools. We highlight recent developments and techniques for state‐of‐the‐art interrogation of cell surface proteins in the complex tissue setting.
Kati Fischermanns, Johannes Broichhagen
wiley +1 more source
Profiling lexical diversity in college-level writing
Vocabulary Learning and InstructionThe present paper reports on a study that examined the contribution of lexical frequency to lexical diversity in narrative texts composed by 119 multilingual and monolingual English-speaking students enrolled in first-year college writing courses.
Melanie C. González
doaj +1 more source
Frequency-Domain Diversity Combining Receiver for ACO-OFDM System
IEEE Photonics Journal, 2015 This paper proposes a new receiver based on frequency-domain diversity combining (FDDC) for an asymmetrically clipped optical orthogonal frequency-division multiplexing (ACO-OFDM) system.
J. Dang, Z. Zhang, L. Wu
doaj +1 more source
An investigation of a frequency diverse array [PDF]
, 2009 This thesis presents a novel concept for focusing an antenna beam pattern as a function of range, time, and angle. In conventional phased arrays, beam steering is achieved by applying a linear phase progression across the aperture.
Antonik, P.
core
Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation
FEBS Letters, EarlyView.Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang +2 more
wiley +1 more source
Bandwidth Efficient OFDM Transmitter Diversity Techniques
EURASIP Journal on Advances in Signal Processing, 2004 Space-time block-coded orthogonal frequency division multiplexing (OFDM) transmitter diversity techniques have been shown to be efficient means of achieving near-optimal diversity gain in frequency-selective fading channels.
Williams Douglas B, Lee King F
doaj +1 more source