Results 71 to 80 of about 20,382 (275)
On the Minimax Capacity Loss under Sub-Nyquist Universal Sampling
, 2017 This paper investigates the information rate loss in analog channels when the sampler is designed to operate independent of the instantaneous channel occupancy.
Chen, Yuxin +2 more
core +1 more source
Advanced Functional Materials, EarlyView.A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou +8 more
wiley +1 more source
A Low Complexity Sensing Algorithm for Non-Sparse Wideband Spectrum
Sensors, 2022 The vast majority of existing sub-Nyquist sampling wideband spectrum sensing (WSS) methods default to a sparse spectrum. However, research data suggests that in the near future, the wideband spectrum will no longer be sparse.
Shiyu Ren +4 more
doaj +1 more source
Cognitive Sub-Nyquist Hardware Prototype of a Collocated MIMO Radar
, 2016 We present the design and hardware implementation of a radar prototype that demonstrates the principle of a sub-Nyquist collocated multiple-input multiple-output (MIMO) radar.
Cohen, David +8 more
core +1 more source
Advanced Functional Materials, EarlyView.An efficient NiOx HTL is successfully prepared by introducing MXene as an additive without further surface modification to fabricate high‐performance FASn0.5Pb0.5I3 perovskite solar cells. The introduction of MXene contributes to improved conductivity of NiOx, better aligned at NiOx/perovskite interfaces, and enhanced quality of perovskite films ...
Lijun Chen +12 more
wiley +1 more source
Algoritmo para sensado de espectro de banda ancha basado en transformada dispersa de Fourier
Dyna, 2016 En este trabajo se presenta un nuevo algoritmo sub-Nyquist para realizar Sensado de Espectro de Banda Ancha (WSS) para Radios Cognitivos (CR) mediante el uso de los algoritmos de Transformada Dispersa de Fourier (sFFT) recientemente desarrollados.
Alexander López-Parrado +1 more
doaj +1 more source
Advanced Functional Materials, EarlyView.An innovative medium entropy alloy (MEA) composite material was fabricated via micro laser powder bed fusion (μ‐LPBF) with appropriate nano‐ceramic particles doping and exhibited markedly improved overall performance, including synergistically enhanced strength and ductility, increased hardness and compressive strength, improved wear resistance and ...
Zhonglin Shen, Mingwang Fu
wiley +1 more source
Ghost edge detection based on HED network
Frontiers of Optoelectronics, 2022 In this paper, we present an edge detection scheme based on ghost imaging (GI) with a holistically-nested neural network. The so-called holistically-nested edge detection (HED) network is adopted to combine the fully convolutional neural network (CNN ...
Shengmei Zhao +3 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Fe and P co‐doped Co9S8 nanocorals (Fe, P‐Co9S8) are successfully synthesized by a heteroatom engineering strategy, which exhibit outstanding bifunctional electrocatalytic performance for both the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR).
Yuying Meng +8 more
wiley +1 more source
A Signal Theoretic Approach for Envelope Analysis of Real-Valued Signals
IEEE Access, 2017 Analytic envelope is the most prevalent definition of envelopes of real-valued signals. However, analytic signals are not adopted by some envelope detectors in application.
Yanli Yang
doaj +1 more source