| Discipline name | D-Index | World Ranking | Current World Ranking | National Ranking | Current National Ranking | Publications | Citations |
|---|---|---|---|---|---|---|---|
| Mechanical and Aerospace Engineering | 80 | 206 | 186 | 102 | 85 | 354 | 35342 |
| Computer Science | 82 | 940 | 909 | 514 | 495 | 366 | 36467 |
The chart shows the history of publications by John J. Leonard between 1989 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. John J. Leonard published across 37 years, from 1989 to 2025, averaging 11.8 papers a year. Output peaked at 34 publications in 2024. 47 of the 437 publications appeared in the last two years.
437 publications in total across all disciplines
| Year | Publications |
|---|---|
| 1989 | 5 |
| 1990 | 4 |
| 1991 | 8 |
| 1992 | 13 |
| 1993 | 6 |
| 1994 | 5 |
| 1995 | 8 |
| 1996 | 3 |
| 1997 | 4 |
| 1998 | 11 |
| 1999 | 5 |
| 2000 | 5 |
| 2001 | 6 |
| 2002 | 17 |
| 2003 | 10 |
| 2004 | 5 |
| 2005 | 15 |
| 2006 | 12 |
| 2007 | 13 |
| 2008 | 13 |
| 2009 | 10 |
| 2010 | 14 |
| 2011 | 6 |
| 2012 | 11 |
| 2013 | 17 |
| 2014 | 15 |
| 2015 | 19 |
| 2016 | 15 |
| 2017 | 10 |
| 2018 | 10 |
| 2019 | 12 |
| 2020 | 12 |
| 2021 | 22 |
| 2022 | 27 |
| 2023 | 22 |
| 2024 | 34 |
| 2025 | 13 |
| Total | 437 |
The chart shows the distribution of publications by all Research.com ranked scientists in the field of Mechanical and Aerospace Engineering in 2026. The highlighted bar marks where John J. Leonard sits on this spectrum.
This scientist: 354 publications — 82nd percentile
82% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 659 publications or more.
| Publications | Scientists | This scientist |
|---|---|---|
| 47–56 | 10 | |
| 57–66 | 23 | |
| 67–76 | 32 | |
| 77–86 | 62 | |
| 87–96 | 67 | |
| 97–106 | 91 | |
| 107–116 | 113 | |
| 117–126 | 115 | |
| 127–136 | 130 | |
| 137–146 | 140 | |
| 147–156 | 155 | |
| 157–166 | 132 | |
| 167–176 | 133 | |
| 177–186 | 130 | |
| 187–196 | 140 | |
| 197–206 | 115 | |
| 207–216 | 125 | |
| 217–226 | 117 | |
| 227–236 | 99 | |
| 237–246 | 92 | |
| 247–256 | 100 | |
| 257–266 | 95 | |
| 267–276 | 88 | |
| 277–286 | 77 | |
| 287–296 | 74 | |
| 297–306 | 74 | |
| 307–316 | 62 | |
| 317–326 | 70 | |
| 327–336 | 59 | |
| 337–346 | 58 | |
| 347–356 | 45 | 354 |
| 357–366 | 44 | |
| 367–376 | 36 | |
| 377–386 | 41 | |
| 387–396 | 32 | |
| 397–406 | 23 | |
| 407–416 | 28 | |
| 417–426 | 27 | |
| 427–436 | 25 | |
| 437–446 | 23 | |
| 447–456 | 23 | |
| 457–466 | 20 | |
| 467–476 | 12 | |
| 477–486 | 24 | |
| 487–496 | 18 | |
| 497–506 | 12 | |
| 507–516 | 13 | |
| 517–526 | 21 | |
| 527–536 | 12 | |
| 537–546 | 8 | |
| 547–556 | 16 | |
| 557–566 | 3 | |
| 567–576 | 11 | |
| 577–586 | 6 | |
| 587–596 | 5 | |
| 597–606 | 6 | |
| 607–616 | 7 | |
| 617–626 | 7 | |
| 627–636 | 10 | |
| 637–646 | 4 | |
| 647–656 | 3 | |
| 657–658 | 2 | |
| 659+ | 100 |
The chart shows the D-index (discipline H-index) distribution of Mechanical and Aerospace Engineering scientists ranked by Research.com in 2026. The highlighted bar marks where John J. Leonard sits on this spectrum.
This scientist: 80 D-Index — 94th percentile
94% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 93 D-Index or more.
| D-Index | Scientists | This scientist |
|---|---|---|
| 30 | 83 | |
| 31 | 113 | |
| 32 | 144 | |
| 33 | 153 | |
| 34 | 189 | |
| 35 | 158 | |
| 36 | 139 | |
| 37 | 127 | |
| 38 | 130 | |
| 39 | 126 | |
| 40 | 104 | |
| 41 | 100 | |
| 42 | 107 | |
| 43 | 101 | |
| 44 | 103 | |
| 45 | 79 | |
| 46 | 88 | |
| 47 | 70 | |
| 48 | 83 | |
| 49 | 44 | |
| 50 | 64 | |
| 51 | 56 | |
| 52 | 50 | |
| 53 | 48 | |
| 54 | 58 | |
| 55 | 52 | |
| 56 | 48 | |
| 57 | 42 | |
| 58 | 34 | |
| 59 | 42 | |
| 60 | 37 | |
| 61 | 42 | |
| 62 | 44 | |
| 63 | 22 | |
| 64 | 33 | |
| 65 | 29 | |
| 66 | 23 | |
| 67 | 29 | |
| 68 | 24 | |
| 69 | 19 | |
| 70 | 34 | |
| 71 | 26 | |
| 72 | 19 | |
| 73 | 18 | |
| 74 | 19 | |
| 75 | 14 | |
| 76 | 19 | |
| 77 | 8 | |
| 78 | 18 | |
| 79 | 16 | |
| 80 | 12 | 80 |
| 81 | 17 | |
| 82 | 11 | |
| 83 | 16 | |
| 84 | 7 | |
| 85 | 9 | |
| 86 | 8 | |
| 87 | 6 | |
| 88 | 6 | |
| 89 | 7 | |
| 90 | 10 | |
| 91 | 4 | |
| 92 | 4 | |
| 93+ | 100 |
Cesar Cadena;Luca Carlone;Henry Carrillo;Yasir Latif
J.J. Leonard;H.F. Durrant-Whyte
Michael Kaess;Hordur Johannsson;Richard Roberts;Viorela Ila
David Moore;John Leonard;Daniela Rus;Seth Teller
John J. Leonard;Hugh F. Durrant-Whyte
J.J. Leonard;H.F. Durrant-Whyte
Stephanie Lowry;Niko Sunderhauf;Paul Newman;John J. Leonard
Juan D. Tardós;José Neira;Paul M. Newman;John J. Leonard
John J. Leonard;Hugh F. Durrant-Whyte;Ingemar J. Cox
E. Olson;J. Leonard;S. Teller
Thomas Whelan;Michael Kaess;Maurice Fallon;Hordur Johannsson
John Leonard;Jonathan How;Seth Teller;Mitch Berger
Thomas Whelan;Michael Kaess;Hordur Johannsson;Maurice Fallon
M. Bosse;P. Newman;J. Leonard;M. Soika
Thomas Whelan;Hordur Johannsson;Michael Kaess;John J. Leonard
Hans Jacob S. Feder;John J. Leonard;Christopher M. Smith
John J. Leonard;Alexander Bahr
Michael Bosse;Paul M. Newman;John J. Leonard;Seth J. Teller
E. Olson;J.J. Leonard;S. Teller
John J. Leonard;Hans Jacob S. Feder
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