Results 41 to 50 of about 21,961,403 (345)
Sensors, 2016 A compressive sensing joint sparse representation direction of arrival estimation (CSJSR-DoA) approach is proposed for wireless sensor array networks (WSAN).
Kai Yu +6 more
doaj +1 more source
Comparative Study between Several Direction of Arrival Estimation Methods
Journal of Telecommunications and Information Technology, 2014 In this paper a comparative study, restricted to one-dimensional stationary case, between several Direction of Arrival (DOA) estimation algorithms of narrowband signals is presented.
Youssef Khmou, Said Safi, Miloud Frikel
doaj +1 more source
IEEE Access, 2018 This paper discusses the localization problem for strictly noncircular sources based on Doppler shifts and angle of arrival (AOA). The conventional location methods, called two-step methods, first extract measurement parameters from the signals, and then
Tianzhu Qin +3 more
doaj +1 more source
Robust symmetric multiplication for programmable analog VLSI array processing [PDF]
, 2006 This paper presents an electrically programmable analog multiplier. The circuit performs the multiplication between an input variable and an electrically selectable scaling factor. The multiplier is divided in several blocks: a linearized transconductor,
Carmona Galán, Ricardo +3 more
core +1 more source
Image formation in synthetic aperture radio telescopes
, 2010 Next generation radio telescopes will be much larger, more sensitive, have much larger observation bandwidth and will be capable of pointing multiple beams simultaneously. Obtaining the sensitivity, resolution and dynamic range supported by the receivers
Leshem, Amir, Levanda, Ronny
core +1 more source
Beamforming Techniques for Resilient Navigation with Small Antenna Arrays
Engineering Proceedings, 2023 This paper presents a comparative benchmarking of different beamforming techniques for robust multipath and spoofing mitigation in handheld receivers equipped with a small number of antenna elements.
Lucía Pallarés-Rodríguez +4 more
doaj +1 more source
A Survey on Array Storage, Query Languages, and Systems [PDF]
, 2013 Since scientific investigation is one of the most important providers of massive amounts of ordered data, there is a renewed interest in array data processing in the context of Big Data.
Cheng, Yu, Rusu, Florin
core
Multiplex gene editing by CRISPR-Cpf1 through autonomous processing of a single crRNA array
Nature Biotechnology, 2016 Targeting of multiple genomic loci with Cas9 is limited by the need for multiple or large expression constructs. Here we show that the ability of Cpf1 to process its own CRISPR RNA (crRNA) can be used to simplify multiplexed genome editing.
Bernd Zetsche +14 more
semanticscholar +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway
Molecular Oncology, EarlyView.Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed +10 more
wiley +1 more source