2 research outputs found
A Robust Technique for Detection, Diagnosis, and Localization of Switching Faults in Electric Drives Using Discrete Wavelet Transform
Detection, diagnosis, and localization of switching faults in electric drives are extremely important for operating a large number of induction motors in parallel. This study aims to present the design and development of switching fault detection, diagnosis, and localization strategy for the induction motor drive system (IMDS) by using a novel diagnostic variable that is derived from discrete wavelet transform (DWT) coefficients. The distinctiveness of the proposed algorithm is that it can identify single/multiple switch open and short faults and locate the defective switches using a single mathematical computation. The proposed algorithm is tested by simulation in MATLAB/Simulink and experimentally validated using the LabVIEW hardware-in-the-loop platform. The results demonstrate the robustness and effectiveness of the proposed technique in identifying and locating faults
Exploration of Biogenic Nano-chemobiotics Fabricated by Silver Nanoparticle and Galactoxyloglucan with an Efficient Biodistribution in Solid Tumor Investigated by SERS Fingerprinting
An
incredible exploration ensued of a dual modality nanocomposite wherein
chemotherapy in fusion with antibacterial efficacy is obtained in
a biogenic fabrication, which transformed as a novel nano-chemobiotics
(NCB) prevailing fundamental molecular level investigation by surface-enhanced
Raman scattering (SERS) platform. The nanocomposite is a facile, robust,
and ecofriendly constitution between silver nanoparticles (SNPs) and
a naturally occurring galactoxyloglucan (PST001) denoted as SNP@PST,
which displayed biocompatibility with an upgraded selective cytotoxicity
toward cancer cells. The relatively nontoxic nature of the SNP@PST
on normal cells and red blood cells was further proved by detailed
toxicological profiling on BALB/c mice. As a unique outcome, we observed
excellent antibacterial activity, which is complementary to the greater
cytotoxicity by the NCB. In diagnostic aspect, SNP@PST was revealed
to be a superior SERS substrate with multiscale Raman signal enhancement
contributed by homogeneous hot-spot distribution. Finally, the inherent
SERS feature enabled us to investigate the biodistribution of the
NCB in tumor-challenged mice using Raman fingerprinting and mapping
analysis. Hence, the unrevealed SNP@PST orchestrated with the surfactant-free
green method resembled a potential theransonstic NCB construct with
synergistic anticancer and antibacterial potential in a single platform