World's Best Scientists 2026 revealed!

D-Index & Metrics

Engineering and Technology

D-Index
39
Citations
6501
World Ranking
7669
National Ranking
147

Ajoy Kumar Ray publication distribution in Engineering and Technology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Engineering and Technology in 2026. The highlighted bar marks where Ajoy Kumar Ray sits on this spectrum.

38–47 publications: 20 scientists 48–57 publications: 35 scientists 58–67 publications: 96 scientists 68–77 publications: 135 scientists 78–87 publications: 190 scientists 88–97 publications: 259 scientists 98–107 publications: 283 scientists 108–117 publications: 369 scientists 118–127 publications: 341 scientists 128–137 publications: 386 scientists 138–147 publications: 372 scientists 148–157 publications: 457 scientists 158–167 publications: 415 scientists 168–177 publications: 407 scientists 178–187 publications: 421 scientists 188–197 publications: 378 scientists 198–207 publications: 403 scientists 208–217 publications: 317 scientists 218–227 publications: 346 scientists 228–237 publications: 321 scientists 238–247 publications: 260 scientists 248–257 publications: 280 scientists 258–267 publications: 240 scientists 268–277 publications: 214 scientists 278–287 publications: 242 scientists 288–297 publications: 203 scientists 298–307 publications: 166 scientists 308–317 publications: 154 scientists 318–327 publications: 175 scientists 328–337 publications: 159 scientists 338–347 publications: 99 scientists 348–357 publications: 131 scientists 358–367 publications: 106 scientists 368–377 publications: 118 scientists 378–387 publications: 97 scientists 388–397 publications: 108 scientists 398–407 publications: 82 scientists 408–417 publications: 71 scientists 418–427 publications: 64 scientists 428–437 publications: 55 scientists 438–447 publications: 54 scientists 448–457 publications: 60 scientists 458–467 publications: 47 scientists 468–477 publications: 40 scientists 478–487 publications: 30 scientists 488–497 publications: 29 scientists 498–507 publications: 38 scientists 508–517 publications: 40 scientists 518–527 publications: 32 scientists 528–537 publications: 23 scientists 538–547 publications: 28 scientists 548–557 publications: 23 scientists 558–567 publications: 19 scientists 568–577 publications: 16 scientists 578–587 publications: 17 scientists 588–597 publications: 18 scientists 598–607 publications: 22 scientists 608–617 publications: 15 scientists 618–627 publications: 9 scientists 628–637 publications: 11 scientists 638–647 publications: 21 scientists 648–657 publications: 12 scientists 658–667 publications: 9 scientists 668–677 publications: 11 scientists 678–687 publications: 9 scientists 688–697 publications: 6 scientists 698–707 publications: 14 scientists 708–717 publications: 7 scientists 718–727 publications: 8 scientists 728–737 publications: 10 scientists 738–747 publications: 9 scientists 748–757 publications: 5 scientists 758–767 publications: 5 scientists 768–777 publications: 11 scientists 778–787 publications: 7 scientists 788–797 publications: 2 scientists 798–803 publications: 4 scientists 804+ publications: 100 scientists
38 publications 804+

This scientist: 202 publications — 49th percentile

49% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 804 publications or more.

Ajoy Kumar Ray D-index placement in Engineering and Technology in 2026

The chart shows the D-index (discipline H-index) distribution of Engineering and Technology scientists ranked by Research.com in 2026. The highlighted bar marks where Ajoy Kumar Ray sits on this spectrum.

30 D-Index: 59 scientists 31 D-Index: 114 scientists 32 D-Index: 129 scientists 33 D-Index: 189 scientists 34 D-Index: 200 scientists 35 D-Index: 262 scientists 36 D-Index: 311 scientists 37 D-Index: 312 scientists 38 D-Index: 350 scientists 39 D-Index: 385 scientists 40 D-Index: 348 scientists 41 D-Index: 362 scientists 42 D-Index: 426 scientists 43 D-Index: 380 scientists 44 D-Index: 310 scientists 45 D-Index: 341 scientists 46 D-Index: 301 scientists 47 D-Index: 306 scientists 48 D-Index: 271 scientists 49 D-Index: 246 scientists 50 D-Index: 210 scientists 51 D-Index: 253 scientists 52 D-Index: 213 scientists 53 D-Index: 221 scientists 54 D-Index: 195 scientists 55 D-Index: 186 scientists 56 D-Index: 170 scientists 57 D-Index: 167 scientists 58 D-Index: 166 scientists 59 D-Index: 144 scientists 60 D-Index: 152 scientists 61 D-Index: 141 scientists 62 D-Index: 138 scientists 63 D-Index: 131 scientists 64 D-Index: 118 scientists 65 D-Index: 114 scientists 66 D-Index: 119 scientists 67 D-Index: 95 scientists 68 D-Index: 87 scientists 69 D-Index: 77 scientists 70 D-Index: 89 scientists 71 D-Index: 69 scientists 72 D-Index: 54 scientists 73 D-Index: 46 scientists 74 D-Index: 55 scientists 75 D-Index: 54 scientists 76 D-Index: 49 scientists 77 D-Index: 53 scientists 78 D-Index: 46 scientists 79 D-Index: 28 scientists 80 D-Index: 39 scientists 81 D-Index: 36 scientists 82 D-Index: 24 scientists 83 D-Index: 26 scientists 84 D-Index: 36 scientists 85 D-Index: 18 scientists 86 D-Index: 25 scientists 87 D-Index: 19 scientists 88 D-Index: 26 scientists 89 D-Index: 27 scientists 90 D-Index: 23 scientists 91 D-Index: 15 scientists 92 D-Index: 12 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 13 scientists 97 D-Index: 13 scientists 98 D-Index: 9 scientists 99 D-Index: 7 scientists 100 D-Index: 7 scientists 101 D-Index: 8 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 9 scientists 105 D-Index: 6 scientists 106 D-Index: 9 scientists 107+ D-Index: 99 scientists
30 D-Index 107+

This scientist: 39 D-Index — 24th percentile

24% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 107 D-Index or more.

Overview

Ajoy Kumar Ray is affiliated with the Indian Institute of Technology Kharagpur in India. Their research primarily focuses on the fields of Health Professions, with a specific subfield concentration in Pharmacy.

The main topic of their work centers on Obesity and Health Practices, a field in which they have contributed notably through their publications.

The scientist's recent scholarly output includes the paper titled The Health Divide: Barriers to Healthcare for Dalits in India, published in 2024 in the African Journal of Biomedical Research. This publication addresses healthcare disparities within India and contributes to the ongoing research discourse in biomedical sciences.

Publication venues where the scientist has presented research include:

  • African Journal of Biomedical Research

Frequent co-authorship collaborations have not been recorded for this researcher.

Best Publications

  • Image Processing - Principles and Applications

    Tinku Acharya;Ajoy K. Ray

  • Application of principal component analysis to ECG signals for automated diagnosis of cardiac health

    Roshan Joy Martis;U. Rajendra Acharya;K. M. Mandana;A. K. Ray

  • Texture Classification Using a Novel, Soft-Set Theory Based Classification Algorithm

    Milind M. Mushrif;S. Sengupta;A. K. Ray

  • Cardiac decision making using higher order spectra

    Roshan Joy Martis;U. Rajendra Acharya;U. Rajendra Acharya;K. M. Mandana;Ajoy Kumar Ray

  • Application of higher order cumulant features for cardiac health diagnosis using ECG signals.

    Roshan Joy Martis;U. Rajendra Acharya;U. Rajendra Acharya;Choo Min Lim;K. M. Mandana

  • Investigations on fuzzy thresholding based on fuzzy clustering

    C. V. Jawahar;Prabir K. Biswas;A. K. Ray

  • A new measure using intuitionistic fuzzy set theory and its application to edge detection

    Tamalika Chaira;A. K. Ray

  • A two-stage mechanism for registration and classification of ECG using Gaussian mixture model

    Roshan Joy Martis;Chandan Chakraborty;Ajoy K. Ray

  • Color image segmentation: Rough-set theoretic approach

    Milind M. Mushrif;Ajoy K. Ray

  • Correlation between the mechanical properties and the microstructural behaviour of Al2O3–(Ag–Cu–Ti) brazed joints

    Sudipta Mandal;Ashok Kumar Ray;Ajoy Kumar Ray

  • Automated leukocyte recognition using fuzzy divergence.

    Madhumala Ghosh;Devkumar Das;Chandan Chakraborty;Ajoy K. Ray

  • Segmentation using fuzzy divergence

    T. Chaira;A. K. Ray

  • Fuzzy Image Processing and Applications with MATLAB

    Tamalika Chaira;Ajoy Kumar Ray

  • Automated oral cancer identification using histopathological images: a hybrid feature extraction paradigm.

    M. Muthu Rama Krishnan;Vikram Venkatraghavan;U. Rajendra Acharya;Mousumi Pal

  • Microstructure, tensile strength and wear behaviour of Al–Sc alloy

    K Venkateswarlu;L C Pathak;Ajoy K Ray;Goutam Das

  • Fuzzy ARTMAP supervised classification of multi-spectral remotely-sensed images

    B. Mannan;J. Roy;A. K. Ray

  • JPEG2000 standard for image compression

    Tinku Acharya;Ajoy K. Ray

  • Observation of large change of 7Be decay rate in Au and Al2O3 and its implications

    A Ray;P Das;S.K Saha;S.K Das

  • Carbothermal Synthesis of Nanocrystalline Aluminum Nitride Powders

    Lokesh Chandra Pathak;Ajoy Kumar Ray;Samar Das;C. S. Sivaramakrishnan

  • Application of higher order cumulants to ECG signals for the cardiac health diagnosis

    Roshan J. Martis;U Rajendra Acharya;Ajoy K. Ray;Chandan Chakraborty

Frequent Co-Authors

Chandan Chakraborty
Chandan Chakraborty Indian Institute of Technology Kharagpur
U. Rajendra Acharya
U. Rajendra Acharya University of Southern Queensland
C. V. Jawahar
C. V. Jawahar International Institute of Information Technology, Hyderabad
Nassir Navab
Nassir Navab Technical University of Munich
Dehi Pada Mondal
Dehi Pada Mondal Advanced Materials and Processes Research Institute
Terence G. Langdon
Terence G. Langdon University of Southern California
Amit Konar
Amit Konar Jadavpur University
Andrew F. Laine
Andrew F. Laine Columbia University
Arun Majumdar
Arun Majumdar Stanford University
Amit Das
Amit Das Leibniz-Institut für Polymerforschung Dresden e. V.

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