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Sagittarius A* (pronounced “Sagittarius A-star”) is the most plausible candidate for the location of the supermassive black hole at the centre of our galaxy. The black hole at the centre of the Milky Way lies at a distance of 26,000 light years from Earth. Sgr A can’t be seen in optical wavelengths because it is hidden from view by large dust clouds in the Milky Way’s spiral arms. The Galactic centre is best observed in infrared light and radio waves.

Early classification of 2019 novel coronavirus disease (COVID-19) and Non-Covid is essential for disease cure and control. Compared with reverse-transcription polymerase chain reaction (RT-PCR), chest computed tomography (CT) imaging may be a significantly more trustworthy, useful, and rapid technique to classify and evaluate COVID-19, specifically in the epidemic region. Almost all hospitals have CT imaging machines; therefore, the chest CT images can be utilized for early classification of COVID-19 patients. However, the chest CT-based COVID-19 classification involves a radiology expert and considerable time, which is valuable when COVID-19 infection is growing at rapid rate. Therefore, an automated analysis of chest CT images is desirable to save the medical professionals’ precious time. In this paper, a convolutional neural networks (CNN) is used to classify the COVID-19-infected patients as infected (+ve) or not (−ve). Additionally, the initial parameters of CNN are tuned using multi-objective differential evolution (MODE). Extensive experiments are performed by considering the proposed and the competitive machine learning techniques on the chest CT images. Extensive analysis shows that the proposed model can classify the chest CT images at a good accuracy rate. For more information visit : https://www.matlabsolutions.com

Audio noise reduction system is the system that is used to remove the noise from the audio signals. Audio noise reduction systems can be divided into two basic approaches. The first approach is the complementary type which involves compressing the audio signal in some well-defined manner before it is recorded (primarily on tape). The second approach is the single-ended or non-complementary type which utilizes techniques to reduce the noise level already present in the source material. For more information visit www.matlabsolutions.com

SARS-CoV-2 (Severe acute respiratory syndrome coronavirus 2) Sequences A novel coronavirus was subsequently identified as the causative pathogen, provisionally named 2019 novel coronavirus (2019-nCoV). As of Jan 26, 2020, more than 2000 cases of 2019-nCoV infection have been confirmed, most of which involved people living in or visiting Wuhan, and human-to-human transmission has been confirmed. https://www.matlabsolutions.com/matlab-projects/corona-virus-gene-sequence-analysis-in-matlab.php