Results 41 to 50 of about 103,159 (268)

Prospects and limitations of full-text index structures in genome analysis [PDF]

open access: yes, 2012
The combination of incessant advances in sequencing technology producing large amounts of data and innovative bioinformatics approaches, designed to cope with this data flood, has led to new interesting results in the life sciences.
Dawyndt, Peter   +3 more
core   +2 more sources

Sparse antenna array design methodologies–A review

open access: yesJournal of Electronic Science and Technology
Designing a sparse array with reduced transmit/receive modules (TRMs) is vital for some applications where the antenna system's size, weight, allowed operating space, and cost are limited.
Pan Wu   +3 more
doaj   +1 more source

Underwater Sparse Acoustic Sensor Array Design under Spacing Constraints Based on a Global Enhancement Whale Optimization Algorithm

open access: yesApplied Sciences, 2022
Sparse arrays with low cost and engineering complexity are widely applied in many fields. However, the high peak sidelobe level (PSLL) of a sparse array causes the degradation of weak target detection performance.
Lening Wang, Hangfang Zhao, Qide Wang
doaj   +1 more source

Sparse Array Mutual Coupling Reduction

open access: yesIEEE Open Journal of Antennas and Propagation
This paper provides a concise overview of recent developments in sparse antenna arrays, with a specific focus on techniques for reducing mutual coupling. It explores the concept and definitions of sparse arrays in different applications, highlighting their historical significance in antenna theory.
C. Larmour   +3 more
openaire   +4 more sources

Multicolor Optoelectronic Synapse Enabled by Photon‐Modulated Remote Doping in Solution‐Processed Van Der Waals Heterostructures

open access: yesAdvanced Functional Materials, EarlyView.
Multicolor optoelectronic synapses are realized by vertically integrating solution‐processed MoS2 thin‐film and SWCNT. The electronically disconnected but interactive MoS2 enables photon‐modulated remote doping, producing a bi‐directional photoresponse.
Jihyun Kim   +8 more
wiley   +1 more source

2D DOA Estimation Exploiting Vertical Synthetic Planar Arrays

open access: yesIEEE Access, 2021
In this paper, vertical motions of sparse linear arrays (SLAs) are utilized to generate equivalent synthetic planar arrays for two-dimensional (2D) direction-of-arrival (DOA) estimation.
Guiyu Wang, Zesong Fei, Shiwei Ren
doaj   +1 more source

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

open access: yesAdvanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding   +7 more
wiley   +1 more source

Comparative Analysis of SVM and CNN for Sonar Signal Classification Using Sparse Arrays

open access: yesIEEE Access
Coprime and nested sparse arrays are two widely researched sparse arrays. These arrays, requiring fewer sensors compared to full uniform linear arrays (ULAs), still have a high number of degrees of freedom.
Showrov Rahman, Kaushallya Adhikari
doaj   +1 more source

Spatially Sparse Precoding in Millimeter Wave MIMO Systems

open access: yes, 2013
Millimeter wave (mmWave) signals experience orders-of-magnitude more pathloss than the microwave signals currently used in most wireless applications.
Abu-Surra, Shadi   +4 more
core   +1 more source

A Smart Magnetically Actuated Flip‐Disc Programmable Metasurface with Ultralow Power Consumption for Real‐Time Channel Control

open access: yesAdvanced Functional Materials, EarlyView.
The study proposes a 1‐bit programmable metasurface based on flip‐disc display, named flip‐disc metasurface (FD‐MTS). This new design enables ultralow energy consumption while maintaining coding patterns. It also exhibits high scalability and multifunctional flexibility.
Jiang Han Bao   +8 more
wiley   +1 more source

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