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Engineering and Technology
USA
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Engineering and Technology 127 35 33 15 15 877 63257
Medicine 137 1902 1773 1079 994 1032 75976

Kai Nan An publications per year

The chart shows the history of publications by Kai Nan An between 1972 and 2021, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Kai Nan An published across 50 years, from 1972 to 2021, averaging 20.9 papers a year. Output peaked at 59 publications in 2006. 9 of the 1,045 publications appeared in the last two years.

No. of publications
10 20 30 40 50
Bar chart. Horizontal axis: year, 1972 to 2021. Vertical axis: number of publications, 0 to 59. Peak 59 publications in 2006. 1972: 1 publication 1973: 0 publications 1974: 0 publications 1975: 1 publication 1976: 3 publications 1977: 0 publications 1978: 3 publications 1979: 1 publication 1980: 3 publications 1981: 3 publications 1982: 3 publications 1983: 9 publications 1984: 8 publications 1985: 10 publications 1986: 6 publications 1987: 11 publications 1988: 8 publications 1989: 29 publications 1990: 14 publications 1991: 21 publications 1992: 16 publications 1993: 21 publications 1994: 29 publications 1995: 19 publications 1996: 31 publications 1997: 44 publications 1998: 32 publications 1999: 25 publications 2000: 31 publications 2001: 42 publications 2002: 43 publications 2003: 34 publications 2004: 34 publications 2005: 32 publications 2006: 59 publications 2007: 41 publications 2008: 33 publications 2009: 36 publications 2010: 38 publications 2011: 38 publications 2012: 47 publications 2013: 39 publications 2014: 31 publications 2015: 43 publications 2016: 18 publications 2017: 16 publications 2018: 22 publications 2019: 8 publications 2020: 5 publications 2021: 4 publications
1972 2021

1,045 publications in total across all disciplines

View publications per year as a table
Kai Nan An: publications per year, 1972 to 2021
Year Publications
1972 1
1973 0
1974 0
1975 1
1976 3
1977 0
1978 3
1979 1
1980 3
1981 3
1982 3
1983 9
1984 8
1985 10
1986 6
1987 11
1988 8
1989 29
1990 14
1991 21
1992 16
1993 21
1994 29
1995 19
1996 31
1997 44
1998 32
1999 25
2000 31
2001 42
2002 43
2003 34
2004 34
2005 32
2006 59
2007 41
2008 33
2009 36
2010 38
2011 38
2012 47
2013 39
2014 31
2015 43
2016 18
2017 16
2018 22
2019 8
2020 5
2021 4
Total 1,045
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Kai Nan An 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 Kai Nan An sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 78 bars. Horizontal axis: publications, 38–47 to 804+. Vertical axis: number of scientists, 0 to 457. Most scientists, 457, have 148–157 publications. The last bar groups every scientist with 804 publications or more. The highlighted bar, 804+ publications, is where this scientist sits. 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
38–47 publications 804+

This scientist: 877 publications — 99th percentile

99% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Engineering and Technology scientists by publication count, Research.com 2026 ranking edition. Based on 9,796 ranked scientists.
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
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+ 100 877
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Kai Nan An 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 Kai Nan An sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 78 bars. Horizontal axis: D-Index, 30 to 107+. Vertical axis: number of scientists, 0 to 426. Most scientists, 426, have 42 D-Index. The last bar groups every scientist with 107 D-Index or more. The highlighted bar, 107+ D-Index, is where this scientist sits. 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: 127 D-Index — 100th percentile

100% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Engineering and Technology scientists by D-index, Research.com 2026 ranking edition. Based on 9,796 ranked scientists.
D-Index Scientists This scientist
30 59
31 114
32 129
33 189
34 200
35 262
36 311
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+ 99 127
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Research.com Recognitions

  • 2026 - Research.com Engineering and Technology in United States Leader Award
  • 2025 - Research.com Engineering and Technology in United States Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Surgery
  • Anatomy
  • Internal medicine

Kai Nan An mainly investigates Anatomy, Cadaver, Biomechanics, Elbow and Orthodontics. Ligament, Tendon, Wrist, Humerus and Cadaveric spasm are among the areas of Anatomy where the researcher is concentrating his efforts. His Cadaver research also works with subjects such as

  • Biceps most often made with reference to Upper limb,
  • Ulna and related Forearm.

His Biomechanics study combines topics from a wide range of disciplines, such as Stress and Biomedical engineering. His Elbow research is multidisciplinary, incorporating perspectives in Joint, Medial collateral ligament and Valgus. Kai Nan An has researched Orthodontics in several fields, including Range of motion, Shear force, Ankle and Isometric exercise.

His most cited work include:

  • A standardized method for the assessment of shoulder function (1150 citations)
  • Articular and ligamentous contributions to the stability of the elbow joint (699 citations)
  • The effect of a glenoid defect on anteroinferior stability of the shoulder after Bankart repair: a cadaveric study. (651 citations)

What are the main themes of his work throughout his whole career to date?

His primary areas of study are Anatomy, Tendon, Biomechanics, Cadaver and Surgery. His research is interdisciplinary, bridging the disciplines of Orthodontics and Anatomy. Kai Nan An combines subjects such as Joint, Kinematics and Range of motion with his study of Orthodontics.

His Tendon research incorporates elements of Carpal tunnel syndrome, Carpal tunnel, Rotator cuff and Biomedical engineering. The various areas that he examines in his Cadaver study include Humerus, Upper limb and Displacement. His Elbow research includes elements of Forearm, Physical medicine and rehabilitation, Ulna and Valgus.

He most often published in these fields:

  • Anatomy (49.21%)
  • Tendon (24.85%)
  • Biomechanics (22.79%)

What were the highlights of his more recent work (between 2012-2021)?

  • Anatomy (49.21%)
  • Tendon (24.85%)
  • Surgery (18.07%)

In recent papers he was focusing on the following fields of study:

Kai Nan An mainly focuses on Anatomy, Tendon, Surgery, Orthodontics and Biomedical engineering. His study connects Weight-bearing and Anatomy. His Tendon study incorporates themes from Ultimate tensile strength, Stromal cell, Carpal tunnel syndrome, Carpal tunnel and Bone marrow.

His research integrates issues of Saline and Hyaluronic acid in his study of Surgery. His research on Orthodontics also deals with topics like

  • Range of motion which connect with Muscle stiffness,
  • Thumb, which have a strong connection to Kinematics. His studies in Cadaver integrate themes in fields like Pulley and Elbow.

Between 2012 and 2021, his most popular works were:

  • Validation of shear wave elastography in skeletal muscle. (268 citations)
  • Ultrasound elastography: the new frontier in direct measurement of muscle stiffness. (151 citations)
  • The stabilizing mechanism of the Latarjet procedure: a cadaveric study. (140 citations)

In his most recent research, the most cited papers focused on:

  • Surgery
  • Internal medicine
  • Orthopedic surgery

Kai Nan An spends much of his time researching Tendon, Anatomy, Surgery, Cadaveric spasm and Biomedical engineering. His Tendon research includes themes of Ultimate tensile strength, Ligament, Carpal tunnel syndrome, Rotator cuff and Bone marrow. His Anatomy research integrates issues from Weight-bearing and Ultrasound.

The various areas that Kai Nan An examines in his Surgery study include Hyaluronic acid and Histology. His studies deal with areas such as Orthodontics, Bone plate, Torsion, Cadaver and Shoulders as well as Cadaveric spasm. In his research on the topic of Orthodontics, Muscle stiffness is strongly related with Range of motion.

Best Publications

  • A standardized method for the assessment of shoulder function

    Robin R. Richards;Kai Nan An;Louis U. Bigliani;Richard J. Friedman

  • Articular and ligamentous contributions to the stability of the elbow joint

    Bernard F. Morrey;Kai Nan an

  • The effect of a glenoid defect on anteroinferior stability of the shoulder after Bankart repair: a cadaveric study.

    Eiji Itoi;Eiji Itoi;Seok Beom Lee;Seok Beom Lee;Lawrence J. Berglund;Linda L. Berge

  • Valgus stability of the elbow. A definition of primary and secondary constraints.

    Bernard F. Morrey;Shinji Tanaka;Kai-Nan An

  • Gait characteristics of patients with knee osteoarthritis.

    Kenton R. Kaufman;Christine Hughes;Bernard F. Morrey;Michael Morrey

  • Muscles across the elbow joint: A biomechanical analysis

    K.N. An;F.C. Hui;B.F. Morrey;R.L. Linscheid

  • Biomechanical study of the ligamentous system of the acromioclavicular joint

    K Fukuda;E V Craig;K N An;R H Cofield

  • Rupture of the distal tendon of the biceps brachii. A biomechanical study.

    B F Morrey;L J Askew;K N An;J H Dobyns

  • Elbow subluxation and dislocation. A spectrum of instability.

    Shawn W. O'driscoll;Bernard F. Morrey;Sarah Korinek;Kai-nan An

  • Functional anatomy of the ligaments of the elbow.

    Bernard F. Morrey;Kai-Nan An

  • Effect of femoral offset on range of motion and abductor muscle strength after total hip arthroplasty

    B. J. McGrory;B. F. Morrey;T. D. Cahalan;K. N. An

  • Biomechanical study of ligaments around the elbow joint.

    William D. Regan;Sarah L. Korinek;Bernard F. Morrey;Kai-Nan An

  • Functional ranges of motion of the wrist joint

    Jaiyoung Ryu;William P. Cooney;Linda J. Askew;Kai Nan An

  • Flexor tendon forces: In vivo measurements

    Frédéric Schuind;Marc Garcia-Elias;William P. Cooney;Kai Nan An

  • Validation of shear wave elastography in skeletal muscle.

    Sarah F. Eby;Pengfei Song;Shigao Chen;Qingshan Chen

  • TENDON EXCURSION AND MOMENT ARM OF INDEX FINGER MUSCLES

    K.N. An;Y. Ueba;E.Y. Chao;W.P. Cooney

  • Determination of muscle orientations and moment arms

    K. N. An;K. Takahashi;T. P. Harrigan;E. Y. Chao

  • Comparison of tibiofemoral joint forces during open-kinetic-chain and closed-kinetic-chain exercises.

    G. F. Lutz;R. A. Palmitier;K. N. An;E. Y.S. Chao

  • An anatomic and mechanical study of the interosseous membrane of the forearm: Pathomechanics of proximal migration of the radius

    Robert N. Hotchkiss;Robert N. Hotchkiss;Kai Nan An;Kai Nan An;David T. Sowa;David T. Sowa;Steven Basta;Steven Basta

  • Biomechanical evaluation of longitudinal arch stability.

    Ching Kuei Huang;Harold B. Kitaoka;Kai Nan an;Edmund Y.S. Chao

Frequent Co-Authors

Peter C. Amadio
Peter C. Amadio Mayo Clinic
Eiji Itoi
Eiji Itoi Tohoku University
John W. Sperling
John W. Sperling Mayo Clinic
Richard A. Berger
Richard A. Berger Rush University Medical Center

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