318 research outputs found
Covid-19 Diagnosis from X-Ray Images using Support Vector Machine
No full textAbstract: Coronavirus disease strike the world in 2019 and commonly called COVID-19 with its update given by the World Health Organization (WHO) on December 31, 2019. It infected more than 100 countries, an infectious disease strike the whole world and people of all age groups became a global health emergency. This disease can transmit from person to person through respiratory droplets and thus is highly contagious. The second wave almost killed billions of persons and lead to several liver problems, pneumonia, respiratory failure, cardiovascular diseases, etc. This can be symptomatic as well as asymptomatic in some patients and thus lead to increased communicability. Machine Learning is a latest trend currently useful in almost all research areas. Using these techniques to diagnose corona makes it highly feasible to cope up with this emergency. Different methods for testing corona virus are present but they require huge delay, are expensive, highly dependent test kits, higher negative false rate and prone to human errors. In this article we provide the state of the art of the covid diagnosis using Chest X ray images and this can guide both clinicians and technologists. A support vector machine is used to train the model and classify images into normal, pneumonia, and covid images. An overall accuracy of 95% is achieved using this method.
Keywords: COVID-19, Corona Virus, Machine Learning, Convolutional Neural Network, Support Vector Machine, X-ray images, Pneumonia.
Title: Covid-19 Diagnosis from X-Ray Images using Support Vector Machine
Author: Satyendra Kumar Sagar
International Journal of Recent Research in Mathematics Computer Science and Information Technology
ISSN 2350-1022
Vol. 9, Issue 2, October 2022 - March 2023
Page No: 24-32
Paper Publications
Website: www.paperpublications.org
Published Date: 16-December-2022
DOI: https://doi.org/10.5281/zenodo.7446436
Paper Download Link (Source)
https://www.paperpublications.org/upload/book/Covid-19%20Diagnosis%20from%20X-Ray-16122022-2.pdfInternational Journal of Recent Research in Mathematics Computer Science and Information Technology, ISSN 2350-1022, Paper Publications, Website: www.paperpublications.or
Scientometric Portrait of Homi Jehangir Bhabha: The Father of Indian Nuclear Research Programme
No full textQuantitative and qualitative analysis with graphic representation of the publication productivity of a scientist facilitates easy and clear perception about the work of a scientist. Bhabha’s scientific work spanned over more than three decades (1933-1967) during which he published 104 publications, which could be classified into nine fields: Interaction of Radiation with Matter (4), Quantum Electrodynamics (5), Mathematical Physics (2), Cosmic Ray Physics (18), Elementary Particle Physics (14), Field Theory (15), General Physics (2), Nuclear Physics (4) and General (40). The highest number of publications (6) were published in 1941, 1945 and 1964 respectively. The average number of publications published per year was 3.05. His productivity coefficient was 0.05 which is a clear indicates that his publication productivity was quite consistent throughout his scientific career. He was single author in 79 of his publications and the main author in 24 publications indicates that he always preferred to work himself and lead the team as ‘mentor’. Bhabha had 22 collaborators during the period. Team of research collaborators working with a successful scientist documents the sociological aspect of history of science while generating knowledge by a leader in a domain.
Bhabha became a citable author in 1937. Bhabha received 1211 citations to his 30 publications out of 104 publications. Out of 104, 74 publications did not receive any citations. Out of 74 publications, 40 publications dealt subjects mainly of general interest. Bhabha’s 86.66 percent of cited publications received their first citations within four years of their publication indicates that his publications were noticed immediately and had direct impact among the fellow researchers working all over the world. His overall citation rate was 11.64 per cited publication. The highest citations 389 were received to the domain ‘Cosmic ray physics’. The highest number of citations received were 45 in 1938. His self-citations were only 24 (1.98%) and citations by others were 1187 (98.02%). The highest self citations were six in 1946. Bhabha’s mean diachronous self-citation rate was 1.98. The highest citation rate 28.4 was to the domain ‘Quantum electrodynamics. His single authored publications have received the highest number 863 (71.26%) of citations. Bhabha’s five publications have been cited more than 100 times each. His publications have been cited by the authors working in various diverse fields like nuclear physics, mathematical physics, instrumentation, optics, geophysics and geochemistry, condensed matter physics, applied physics, electrical and electronic engineering, mechanical engineering etc., indicating a very diverse influence and impact of Bhabha’s publications. Bhabha’s publications have also been cited by the Nobel laureates like V. L. Ginzberg, Wolfgang Pauli, H. A. Bethe, M. Born, W. Bothe, E. P. Wigner, H. Yukawa, P. M. S. Blackett and C. N. Yang which is an indication of his originality of ideas and high quality of publications
Natyatattbik Saumitra Chattapadhyayer ‘Tiktiki’ Natya : Apratyashita Prabin - Nabiner Anabadya Yugalbandi/ নাট্যতাত্ত্বিক সৌমিত্র চট্টোপাধ্যায়ের ‘টিকটিকি’ নাট্য : অপ্রত্যাশিত প্রবীণ - নবীনের অনবদ্য যুগলবন্দি
No full textThe evolution or development of Bengali drama has been seen by theatre enthusiasts from the general public to theatre intellectuals. As much as social, political and historical dramas have been seen, Rajshekhar Bose, Sharadindu or Satyajit Ray have not been brought to the theatre arena. In this regard, the long-standing desire of the theatre enthusiasts has been fulfilled by the recent famous mystery and detective drama ‘Tiktiki’ by the ‘Swapnasandhani’ theatre group. Playwright Soumitra Chatterjee has made a Bengali adaptation of the much-loved ‘Sleuth’ play by foreign playwright Anthony Shaffer in the play ‘Tiktiki’. In the world of theatre in the 20th century, veteran playwright Soumitra Chatterjee has been working tirelessly with indomitable dedication and enthusiasm in the pursuit of theatre. He has inspired his creative power in writing original and translated plays and both full-length and one-act plays. The play was first published in Bahurupi Patrika, issue 52, September 1979, and secondly in Vibhav Patrika. Satya Sindhu and his wife Rekha found a companion of thirty-five years to shake off the boredom of their failed married life. The man was Bimal Nandi, new resident of the area. Bimal Nandi’s father’s name was Jagannath Kangsavanik. His father moved to Kolkata during the partition. His original home was at Faridpur. Even though Satyasindhu was immersed in his own world, the love story between Rekha and Bimal finally reached into his ears. One day, in Rekha’s absence, Satya invites Bimal Nandi to his house. Two people of different ages, different classes, different tastes and different mindsets stand face to face in a room of that large house decorated in various ways. Bimal Nandi and Rekha love each other, but Bimal’s financial condition was not as prosperous as Satyasindhu’s. Satyasindhu prefers to stay in his own imaginary world, afraid to come out into the real world outside. Therefore, he deals with his wife’s illicit love and lover in the style of a fictional detective story. Bimal has fallen in love with a very expensive woman and he has no money. In this case, according to Satyasindhu’s logic, if he wants to have a married life, he has only one way out, which is to steal those jewels. Bimal completely believes Satyasindhu this time. Satya Sindhu have asked Bimal to play this game in such a way that the government inspector comes and spends his time on this matter, and you will have to do the work in such a way. The black dog will come only after you have stolen; it is called a detective. The language of the underworld, ‘tiktiki’ is what you call it. Bimal, the lover, joins in this game and gets a kick out of it at first, then uses his ‘Gurumara’ knowledge to trick Satya Sindhu (Soumitra Chatterjee). Needless to say, Satya Sindhu plays the game like a seasoned player. And Kaushik Sen, who plays Bimal, keeps pace with him. This pairing of the old and the new is enjoyable and educational for the young. As a smart, intelligent comedy, ‘Tiktiki’ certainly comes off well. But even in that, the production gets a little deeper because it touches on some contemporary issues, problems or relationships. For example, the problem of marital relations or illicit love, the class gap enters into it and complicates it, a sharp joke about police corruption or the fantasy world of detective literature. The comedy at the beginning of the second act is also particularly interesting, especially Bimal’s extraordinary disguise, Balaram is at least fifty years old. He wears glasses, has unkempt hair, and a mustache. He wears a police uniform. The director, actor, and makeup designer Sri Das is also a partner in the achievement. At one point, it is almost proven that Satyasindhu has murdered Bimal. The police officer says that he will arrest Satyasindhu for murder. Then Bimal Nandi comes out from behind the makeup of the officer disguise. He wants to take revenge for the extreme humiliation and shame of defeat that Bimal suffered when he came close to death in the first act. Bimal takes that revenge at the end of the play; the play becomes new in another episode. The game starts again. The three-time game ends in today\u27s social emptiness. How he takes it creates a terrible beauty in the play. In this play, Satyasindhu Chowdhury is a rich, aristocratic man. And Bimal is a poor son of a refugee family. Bimal loves Satyasindhu’s wife Rekha. He wants to marry her. So, Satya wants to compose a play within the play to punish Bimal. In this way, two men endanger each other by taking control of the same woman, become cruel, ruthless, brutal towards each other, and even become each other\u27s murderers. This play is a report on how jealousy, rivalry, and the attitude of competing with each other make people desperate and endangered, how they push each other towards humiliation and disrespect. The play is not just a spy story, but it is very much like that. Playwright and director Soumitra Chatterjee has beautifully presented the imagination and feelings of the subconscious in the analysis of the psyche of people
A brief review of closed curve approximation technique using iterative point elimination
No full textA Technique to Approximate Digital Planar Curve with Polygon
No full textThis chapter presents a technique which uses the sum of height square as a measure to define the deflection associated with a pseudo high curvature points on the digital planar curve. The proposed technique iteratively removes the pseudo high curvature points whose deflection is minimal, and recalculates the deflection associated with its neighbouring pseudo high curvature points. The experimental results of the proposed technique are compared with recent state of the art iterative point elimination methods. The comparative results show that the proposed technique produces the output polygon in a better way than others for most of the input digital curve. </jats:p
Chiral tricyclic triazolooxazine derived mesoionic carbene (MIC)-Pd(II) complexes of cyclohexene oxide scaffold: Synthesis, structure, and characterizations
No full textWe herein report the well-defined two novel chiral palladium(II) complexes 1(b−c), of the chiral N-fused tricyclic triazolooxazine derived mesoionic carbene (tz-MIC) ligand 1a. The chiral tricyclic PEPPSI type complex (pyridine enhanced pre-catalyst preparation stabilization and initiation) namely, trans-[tz-MIC)-PdI2(pyridine)] (1b), and the chiral tricyclic bis(tz-MIC)-palladium complex namely, cis-[tz-MIC)2-PdCl2] (1c). The chiral tricyclic trans-[tz-MIC)-PdI2(pyridine)] PEPPSI type complex (pyridine enhanced pre-catalyst preparation stabilization and initiation) (1b) was directly obtained from their respective chiral tricyclic triazolooxazinium iodide salt (1a), by treatment with PdCl2 and K2CO3 in pyridine in 77% yield. The chiral tricyclic triazolooxazinium iodide salt (1a), was first converted to its in-situ silver analogue by reaction with Ag2O and then subsequently upon treatment with (COD)PdCl2 to produce the chiral tricyclic (tz-MIC)2PdCl2 type palladium complex (1c) in 84% yield. All these palladium complexes were isolated for the first time and structurally characterized by 1H NMR and 13C{1H}-NMR spectroscopy, FT-IR spectroscopy, mass spectrometry, elemental analysis and single crystal X-ray crystallography.MKG thanks to the Council of Scientific and Industrial Research (CSIR File No: 09/087(0663)/2010-EMR-I), New Delhi, for financial support of this research. The author gratefully acknowledge to the Single Crystal X-ray Diffraction Facility, Department of Chemistry IIT Bombay, India. The author also thanks to Professor P. Ghosh from Department of Chemistry, IIT Bombay, for his technical support. The author thanks to Professor Raymond John Butcher for solving the Single Crystal X-ray structures. The author gratefully acknowledge to CSIR, New Delhi for research fellowship
Axially chiral bis-1,2,3-Triazol-4-ylidene–Ag(I)-MIC and, bis-Au(I)-MIC complexes of (R)-BINOL and (-)-Menthol scaffold: Synthesis, structure, and characterizations
No full textHerein, we report the novel axially chiral bis-Ag(I)-MIC and, bis-Au(I)-MIC complexes bearing axially chiral bis-1,2,3-triazolium-derived mesoionic carbene (tz-MIC) ligands were synthesized. The enantiopure R-BINOL was employed as a basic unit to synthesize a axially chiral bis-1,2,3-triazolium-derived mesoionic carbene (tz-MIC) ligands (1–2)a. In particular, the axially chiral bis-1,2,3-triazolium-derived mesoionic carbene (tz-MIC) ligands (1–2)a, were obtained from the reaction of corresponding bis-1,2,3-triazole ligand precursor with methyl and ethyl iodide in 82−90% yields. Novel axially chiral bis-Ag(I)-MIC complexes (1 − 2)b, were prepared by the treatment of corresponding axially chiral bis-1,2,3-triazolium-derived mesoionic carbene (tz-MIC) iodide salts, (1 − 2)a, with Ag2O via in-situ deprotonation method in 69−86% yields. Novel axially chiral bis-Au(I)-MIC complex-2c was synthesized from their respective novel axially chiral bis-Ag(I)-MIC complex-2b, using transmetallation reaction with (SMe2)AuCl in 70% yield. All these novel axially chiral bis-Ag(I)-MIC and bis-Au(I)-MIC complexes were isolated for the first time and structurally characterized by 1H NMR and 13C{1H}-NMR spectroscopy, FT-IR spectroscopy, mass spectrometry, elemental analysis, specific optical rotation and, single crystal X-ray crystallography.MKG thanks to the Council of Scientific and Industrial Research (CSIR File No: 09/087(0663)/2010-EMR-I), New Delhi, for financial support of this research. The author gratefully acknowledge to the Single Crystal X-ray Diffraction Facility, Department of Chemistry IIT Bombay, India. The author also thanks to Professor P. Ghosh from Department of Chemistry, IIT Bombay, for his technical support. The author thanks to Professor Raymond John Butcher for solving the Single Crystal X-ray structures. The author gratefully acknowledge to CSIR, New Delhi for research fellowship
Portable mini-chamber for temperature dependent studies using small angle and wide angle x-ray scattering
No full textThe present work describes the design and performance of a vacuum compatible portable mini chamber for temperature dependent GISAXS and GIWAXS studies of thin films and multilayer structures. The water cooled body of the chamber allows sample annealing up to 900 K using ultra high vacuum compatible (UHV) pyrolytic boron nitride heater, thus making it possible to study the temperature dependent evolution of structure and morphology of two-dimensional nanostructured materials. Due to its light weight and small size, the chamber is portable and can be accommodated at synchrotron facilities worldwide. A systematic illustration of the versatility of the chamber has been demonstrated at beamline P03, PETRA-III, DESY, Hamburg, Germany. Temperature dependent grazing incidence small angle x-ray scattering (GISAXS) and grazing incidence wide angle x-ray scattering (GIWAXS) measurements were performed on oblique angle deposited Co/Ag multilayer structure, which jointly revealed that the surface diffusion in Co columns in Co/Ag multilayer enhances by increasing temperature from RT to ∼573 K. This results in a morphology change from columnar tilted structure to densely packed morphological isotropic multilayer</p
- …
