Results 1 to 10 of about 24,088 (180)

Srinivasa Ramanujan and signal-processing problems [PDF]

open access: yesPhilosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2020
The Ramanujan sum c q ( n ) has been used by mathematicians to derive many important infinite series expansions for arithmetic-functions in number theory.
Palghat Vaidyanathan
exaly   +7 more sources

Fertilizers and Mixed Crop Cultivation of Chromium Tolerant and Sensitive Plants under Chromium Toxicity. [PDF]

open access: yesJ Toxicol, 2015
Zea mays (maize) and Vigna radiata (green gram) are found to be the chromium (Cr) tolerant and sensitive plants, respectively. In the present paper, we investigate the reduction of the toxicity of Cr in the sensitive plants by the mixed crop cultivation ...
Dheeba B, Sampathkumar P, Kannan K.
europepmc   +3 more sources

A hybrid CNN-ViT framework with cross-attention fusion and data augmentation for robust brain tumor classification. [PDF]

open access: yesSci Rep
Brain tumor classification from MRI scans is a challenging task that requires accurate and timely detection increase patient survival rates. Conventional machine learning methods with hand-crafted features often fail to handle different sizes, forms, and
Jayaraman G   +5 more
europepmc   +2 more sources

Workforce restoration time analysis for a two grade manpower system under heavy tail distribution and dual regime decisions latency. [PDF]

open access: yesSci Rep
Workforce restoration time (WRT) and man power planning are very essential for administrative as well as production oriented organizations. In recent days, several researchers worked on two-grade manpower system with a homogeneous attrition rate to ...
Parameswari K, Kannan K, Menaga A.
europepmc   +2 more sources

Exponential Wiener index of some silicate networks. [PDF]

open access: yesSci Rep
Any graph that depicts a particular molecular structure can be given a topological graph index, also known as a molecular descriptor. This index can be used to examine numerical data and discover more about specific physical properties of molecules ...
Subashini G, Kannan K, Menaga A.
europepmc   +2 more sources

Efficient algorithm on exponential Wiener index and QSPR analysis of alkanes and benzenoid hydrocarbons. [PDF]

open access: yesSci Rep
Any graph that depicts a particular molecular structure can be given a topological graph index, also known as a molecular descriptor. From this index, it is possible to examine numerical data and learn more about some of the physical characteristics of a
Punitha S, Kannan K, Menaga A.
europepmc   +2 more sources

LSTM autoencoder based parallel architecture for deepfake audio detection with dynamic residual encoding and feature fusion. [PDF]

open access: yesSci Rep
With the rapid advancement of synthetic speech technologies, detecting deepfake audio has become essential for preventing impersonation and misinformation.
Muruganandham P   +3 more
europepmc   +2 more sources

On an asymptotic formula of Srinivasa Ramanujan [PDF]

open access: yesActa Arithmetica, 2003
Let \(d(n)\) denote the number of divisors of \(n\). An old problem of S. Ramanujan is the estimation of the error term \(E(x)\) in the asymptotic formula \[ \sum_{n\leq x}d^2(n) = xP_3(\log x) + E(x),\quad P_3(\log x) = \text{Re}\, s_{\lneq\{s=1\}}\,{\zeta^2(s)x^s\over \zeta(2s)s}.
K Ramachandra
exaly   +3 more sources

Exploring the properties of benzenoid hydrocarbons through QSPR modeling and domination-based energy parameters. [PDF]

open access: yesSci Rep
This article aims to explore two emerging areas of graph theory: chemical graph theory and domination theory. We specifically focus on a graph parameter that combines aspects of graph energy and domination, known as the dominating energy of a simple ...
Sankaran S, Chidambaram N.
europepmc   +2 more sources

Bacteria-Inspired Synthesis of Silver-Doped Zinc Oxide Nanocomposites: A Novel Synergistic Approach in Controlling Biofilm and Quorum-Sensing-Regulated Virulence Factors in Pseudomonas aeruginosa. [PDF]

open access: yesAntibiotics (Basel)
Multidrug-resistant Pseudomonas aeruginosa infections pose a critical challenge to healthcare systems, particularly in nosocomial settings. This drug-resistant bacterium forms biofilms and produces an array of virulent factors regulated by quorum sensing.
Karthikeyan A   +3 more
europepmc   +2 more sources

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