Results 81 to 90 of about 1,247,767 (351)
Noise improvement of SNR gain in parallel array of bistable dynamic systems by array stochastic resonance [PDF]
arXiv, 2006 We report the regions where a signal-to-noise ratio (SNR) gain exceeding unity exists in a parallel uncoupled array of identical bistable systems, for both subthreshold and suprathreshold sinusoids buried in broadband Gaussian white input noise. Due to independent noise in each element of the parallel array, the SNR gain of the collective array ...
arxiv
PhD Thesis on Code Modulated Interferometric Imaging System using Phased Arrays [PDF]
arXiv, 2021 This work presents techniques which can allow low-cost phased-array receivers to be reconfigured as interferometric imagers and thereby reducing cost. Since traditional phased arrays power combine incoming signals prior to digitization, orthogonal code-modulation is applied to each incoming signal using phase shifters within each front-end.
arxiv
A comparative study of circulating tumor cell isolation and enumeration technologies in lung cancer
Molecular Oncology, EarlyView.Lung cancer cells were spiked into donor blood to evaluate the recovery rates of the following circulating tumor cell (CTC) enrichment technologies: CellMag™, EasySep™, RosetteSep™, Parsortix® PR1, and Parsortix® Prototype systems. Each method's advantages and disadvantages are described.
Volga M Saini +11 more
wiley +1 more source
Assessment of Measurement Distortions in GNSS Antenna Array Space-Time Processing
International Journal of Antennas and Propagation, 2016 Antenna array processing techniques are studied in GNSS as effective tools to mitigate interference in spatial and spatiotemporal domains. However, without specific considerations, the array processing results in biases and distortions in the cross ...
Thyagaraja Marathe +2 more
doaj +1 more source
IET Signal Processing, 2023 This article proposes a direct position determination (DPD) algorithm for non‐circular sources observed by a moving array using the self‐calibration technique in the presence of mutual coupling.
Jie Deng +3 more
doaj +1 more source
Product Processing for Tapered Sparse Arrays [PDF]
arXiv, 2021 The product processor output has recently been introduced as a spatial power spectral density estimate, unifying product arrays such as coprime arrays, nested arrays, and standard uniform line arrays. The expected value and covariance function of this estimate for a white Gaussian process was derived in previous work over these various array ...
arxiv
Molecular Oncology, Volume 19, Issue 4, Page 1203-1228, April 2025.MiR‐99a‐5p/miR‐100‐5p (functionally identical) and miR‐125b‐5p microRNAs are downregulated in malignant germ cell tumors (GCTs). Combination replenishment of these microRNAs using mimics resulted in growth inhibition in representative cell lines, with consequent downregulation of target genes involved in cell cycle (confirmed by flow cytometry) and ...
Marta Ferraresso +12 more
wiley +1 more source
Array signal processing robust to pointing errors
, 2011 The objective of this thesis is to design computationally efficient DOA (direction-of- arrival) estimation algorithms and beamformers robust to pointing errors, by harnessing the antenna geometrical information and received signals.
Zhuang, Jie, Zhuang, Jie
core +1 more source
Molecular Oncology, Volume 19, Issue 4, Page 1132-1154, April 2025.PIK3CA amplification and PIK3CA mutation enhance ovarian tumorigenicity through an activation of AKT, which phosphorylates YAP at Ser127. This Ser127 phosphorylation leads to the retention of YAP in the cytoplasm and triggers RAC1 activity, promoting cell migration. Additionally, AKT activation increases expression of N‐cadherin, which further enhances
Shibo Zhang +6 more
wiley +1 more source
IET Radar, Sonar & NavigationVirtual aperture extension of small aperture array has attracted wide attention in high‐frequency surface wave radar (HFSWR). A biologically inspired coupled (BIC) system is employed to virtually extend the array aperture.
Hongbo Li +4 more
doaj +1 more source