Results 41 to 50 of about 456,084 (310)

An Efficient CRT Based Algorithm for Frequency Determination from Undersampled Real Waveform

open access: yesSensors, 2023
The Chinese Remainder Theorem (CRT) based frequency estimation has been widely studied during the past two decades. It enables one to estimate frequencies by sub-Nyquist sampling rates, which reduces the cost of hardware in a sensor network.
Yao-Wen Zhang   +2 more
doaj   +1 more source

Solving a System of Fractional-Order Volterra-Fredholm Integro-Differential Equations with Weakly Singular Kernels via the Second Chebyshev Wavelets Method

open access: yesFractal and Fractional, 2021
In this paper, by means of the second Chebyshev wavelet and its operational matrix, we solve a system of fractional-order Volterra–Fredholm integro-differential equations with weakly singular kernels.
Esmail Bargamadi   +3 more
doaj   +1 more source

Some characterizations of error bound for non-lower semicontinuous functions

open access: yesJournal of Inequalities and Applications, 2019
In this paper, we study the error bound of non-lower semicontinuous functions. First, we extend the concepts of strong slope and global slope to the non-lower semicontinuous functions.
Miantao Chao   +2 more
doaj   +1 more source

An Output Error Bound for Time-Limited Balanced Truncation

open access: yes, 2018
© 2018 Elsevier B.V. When solving partial differential equations numerically, usually a high order spatial discretization is needed. Model order reduction (MOR) techniques are often used to reduce the order of spatially-discretized systems and hence ...
Redmann, M.   +4 more
core   +1 more source

Symbol error rate analysis for M-QAM modulated physical-layer network coding with phase errors [PDF]

open access: yes, 2012
Author version, OK to pubRecent theoretical studies of physical-layer network coding (PNC) show much interest on high-level modulation, such as M-ary quadrature amplitude modulation (M-QAM), and most related works are based on the assumption of phase ...
Song, Q   +7 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Approximating Solutions of Non-Linear Troesch’s Problem via an Efficient Quasi-Linearization Bessel Approach

open access: yesMathematics, 2021
Two collocation-based methods utilizing the novel Bessel polynomials (with positive coefficients) are developed for solving the non-linear Troesch’s problem.
Mohammad Izadi   +2 more
doaj   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

open access: yesFEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva   +5 more
wiley   +1 more source

Topologically driven no-superposing theorem with a tight error bound [PDF]

open access: yesQuantum
To better understand quantum computation we can search for its limits or no-gos, especially if analogous limits do not appear in classical computation.
Zuzana Gavorová
doaj   +1 more source

Graph summarization with bounded error [PDF]

open access: yesProceedings of the 2008 ACM SIGMOD international conference on Management of data, 2008
We propose a highly compact two-part representation of a given graph G consisting of a graph summary and a set of corrections. The graph summary is an aggregate graph in which each node corresponds to a set of nodes in G, and each edge represents the edges between all pair of nodes in the two sets.
Saket Navlakha   +2 more
openaire   +1 more source

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