| Discipline name | D-Index | World Ranking | Current World Ranking | National Ranking | Current National Ranking | Publications | Citations |
|---|---|---|---|---|---|---|---|
| Engineering and Technology | 36 | 8666 | 8354 | 1475 | 1468 | 134 | 5814 |
The chart shows the history of publications by R.K. Cheng between 1975 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. R.K. Cheng published across 52 years, from 1975 to 2026, averaging 3.7 papers a year. Output peaked at 10 publications in 2017. 5 of the 194 publications appeared in the last two years.
194 publications in total across all disciplines
| Year | Publications |
|---|---|
| 1975 | 1 |
| 1976 | 1 |
| 1977 | 1 |
| 1978 | 0 |
| 1979 | 0 |
| 1980 | 3 |
| 1981 | 3 |
| 1982 | 4 |
| 1983 | 2 |
| 1984 | 5 |
| 1985 | 2 |
| 1986 | 1 |
| 1987 | 1 |
| 1988 | 4 |
| 1989 | 5 |
| 1990 | 3 |
| 1991 | 3 |
| 1992 | 8 |
| 1993 | 4 |
| 1994 | 1 |
| 1995 | 6 |
| 1996 | 1 |
| 1997 | 2 |
| 1998 | 4 |
| 1999 | 7 |
| 2000 | 4 |
| 2001 | 6 |
| 2002 | 3 |
| 2003 | 6 |
| 2004 | 4 |
| 2005 | 2 |
| 2006 | 5 |
| 2007 | 4 |
| 2008 | 8 |
| 2009 | 7 |
| 2010 | 3 |
| 2011 | 1 |
| 2012 | 8 |
| 2013 | 3 |
| 2014 | 2 |
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 10 |
| 2018 | 5 |
| 2019 | 2 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 4 |
| 2026 | 1 |
| Total | 194 |
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 R.K. Cheng sits on this spectrum.
This scientist: 134 publications — 20th percentile
20% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 804 publications or more.
| Publications | Scientists | This scientist |
|---|---|---|
| 38–47 | 20 | |
| 48–57 | 35 | |
| 58–67 | 96 | |
| 68–77 | 135 | |
| 78–87 | 190 | |
| 88–97 | 259 | |
| 98–107 | 283 | |
| 108–117 | 369 | |
| 118–127 | 341 | |
| 128–137 | 386 | 134 |
| 138–147 | 372 | |
| 148–157 | 457 | |
| 158–167 | 415 | |
| 168–177 | 407 | |
| 178–187 | 421 | |
| 188–197 | 378 | |
| 198–207 | 403 | |
| 208–217 | 317 | |
| 218–227 | 346 | |
| 228–237 | 321 | |
| 238–247 | 260 | |
| 248–257 | 280 | |
| 258–267 | 240 | |
| 268–277 | 214 | |
| 278–287 | 242 | |
| 288–297 | 203 | |
| 298–307 | 166 | |
| 308–317 | 154 | |
| 318–327 | 175 | |
| 328–337 | 159 | |
| 338–347 | 99 | |
| 348–357 | 131 | |
| 358–367 | 106 | |
| 368–377 | 118 | |
| 378–387 | 97 | |
| 388–397 | 108 | |
| 398–407 | 82 | |
| 408–417 | 71 | |
| 418–427 | 64 | |
| 428–437 | 55 | |
| 438–447 | 54 | |
| 448–457 | 60 | |
| 458–467 | 47 | |
| 468–477 | 40 | |
| 478–487 | 30 | |
| 488–497 | 29 | |
| 498–507 | 38 | |
| 508–517 | 40 | |
| 518–527 | 32 | |
| 528–537 | 23 | |
| 538–547 | 28 | |
| 548–557 | 23 | |
| 558–567 | 19 | |
| 568–577 | 16 | |
| 578–587 | 17 | |
| 588–597 | 18 | |
| 598–607 | 22 | |
| 608–617 | 15 | |
| 618–627 | 9 | |
| 628–637 | 11 | |
| 638–647 | 21 | |
| 648–657 | 12 | |
| 658–667 | 9 | |
| 668–677 | 11 | |
| 678–687 | 9 | |
| 688–697 | 6 | |
| 698–707 | 14 | |
| 708–717 | 7 | |
| 718–727 | 8 | |
| 728–737 | 10 | |
| 738–747 | 9 | |
| 748–757 | 5 | |
| 758–767 | 5 | |
| 768–777 | 11 | |
| 778–787 | 7 | |
| 788–797 | 2 | |
| 798–803 | 4 | |
| 804+ | 100 |
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 R.K. Cheng sits on this spectrum.
This scientist: 36 D-Index — 13th percentile
13% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 107 D-Index or more.
| D-Index | Scientists | This scientist |
|---|---|---|
| 30 | 59 | |
| 31 | 114 | |
| 32 | 129 | |
| 33 | 189 | |
| 34 | 200 | |
| 35 | 262 | |
| 36 | 311 | 36 |
| 37 | 312 | |
| 38 | 350 | |
| 39 | 385 | |
| 40 | 348 | |
| 41 | 362 | |
| 42 | 426 | |
| 43 | 380 | |
| 44 | 310 | |
| 45 | 341 | |
| 46 | 301 | |
| 47 | 306 | |
| 48 | 271 | |
| 49 | 246 | |
| 50 | 210 | |
| 51 | 253 | |
| 52 | 213 | |
| 53 | 221 | |
| 54 | 195 | |
| 55 | 186 | |
| 56 | 170 | |
| 57 | 167 | |
| 58 | 166 | |
| 59 | 144 | |
| 60 | 152 | |
| 61 | 141 | |
| 62 | 138 | |
| 63 | 131 | |
| 64 | 118 | |
| 65 | 114 | |
| 66 | 119 | |
| 67 | 95 | |
| 68 | 87 | |
| 69 | 77 | |
| 70 | 89 | |
| 71 | 69 | |
| 72 | 54 | |
| 73 | 46 | |
| 74 | 55 | |
| 75 | 54 | |
| 76 | 49 | |
| 77 | 53 | |
| 78 | 46 | |
| 79 | 28 | |
| 80 | 39 | |
| 81 | 36 | |
| 82 | 24 | |
| 83 | 26 | |
| 84 | 36 | |
| 85 | 18 | |
| 86 | 25 | |
| 87 | 19 | |
| 88 | 26 | |
| 89 | 27 | |
| 90 | 23 | |
| 91 | 15 | |
| 92 | 12 | |
| 93 | 9 | |
| 94 | 15 | |
| 95 | 10 | |
| 96 | 13 | |
| 97 | 13 | |
| 98 | 9 | |
| 99 | 7 | |
| 100 | 7 | |
| 101 | 8 | |
| 102 | 7 | |
| 103 | 7 | |
| 104 | 9 | |
| 105 | 6 | |
| 106 | 9 | |
| 107+ | 99 |
Unknown
R.K. Cheng;A.K. Oppenheim
John B. Bell;Robert K. Cheng;Marcus S. Day;Ian G. Shepherd
J. B. Bell;M. S. Day;I. G. Shepherd;M. R. Johnson
Unknown
Unknown
Marc Day;Shigeru Tachibana;John Bell;Michael Lijewski
T. Plessing;C. Kortschik;N. Peters;M.S. Mansour
Per Petersson;Jimmy Olofsson;Christian Brackman;Hans Seyfried
Unknown
I.G. Shepherd;R.K. Cheng;T. Plessing;C. Kortschik
Unknown
Unknown
Marc Day;Shigeru Tachibana;John Bell;Michael Lijewski
David Littlejohn;Robert K. Cheng;D. R. Noble;Tim Lieuwen
Unknown
P. Cho;Chung King Law;R. K. Cheng;I. G. Shepherd
Unknown
R.K. Cheng;T.T. Ng
Unknown
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