World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Mechanical and Aerospace Engineering 37 2372 2215 855 756 139 6015

Thomas G. Sugar publications per year

The chart shows the history of publications by Thomas G. Sugar between 1991 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Thomas G. Sugar published across 35 years, from 1991 to 2025, averaging 4.5 papers a year. Output peaked at 13 publications in 2005. 4 of the 159 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1991 to 2025. Vertical axis: number of publications, 0 to 13. Peak 13 publications in 2005. 1991: 2 publications 1992: 2 publications 1993: 3 publications 1994: 1 publication 1995: 0 publications 1996: 0 publications 1997: 0 publications 1998: 2 publications 1999: 3 publications 2000: 0 publications 2001: 6 publications 2002: 11 publications 2003: 4 publications 2004: 5 publications 2005: 13 publications 2006: 9 publications 2007: 9 publications 2008: 9 publications 2009: 7 publications 2010: 10 publications 2011: 5 publications 2012: 1 publication 2013: 4 publications 2014: 7 publications 2015: 6 publications 2016: 3 publications 2017: 9 publications 2018: 4 publications 2019: 8 publications 2020: 7 publications 2021: 0 publications 2022: 2 publications 2023: 3 publications 2024: 3 publications 2025: 1 publication
1991 2025

159 publications in total across all disciplines

View publications per year as a table
Thomas G. Sugar: publications per year, 1991 to 2025
Year Publications
1991 2
1992 2
1993 3
1994 1
1995 0
1996 0
1997 0
1998 2
1999 3
2000 0
2001 6
2002 11
2003 4
2004 5
2005 13
2006 9
2007 9
2008 9
2009 7
2010 10
2011 5
2012 1
2013 4
2014 7
2015 6
2016 3
2017 9
2018 4
2019 8
2020 7
2021 0
2022 2
2023 3
2024 3
2025 1
Total 159
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Thomas G. Sugar publication distribution in Mechanical and Aerospace Engineering in 2026

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 Thomas G. Sugar sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 63 bars. Horizontal axis: publications, 47–56 to 659+. Vertical axis: number of scientists, 0 to 155. Most scientists, 155, have 147–156 publications. The last bar groups every scientist with 659 publications or more. The highlighted bar, 137–146 publications, is where this scientist sits. 47–56 publications: 10 scientists 57–66 publications: 23 scientists 67–76 publications: 32 scientists 77–86 publications: 62 scientists 87–96 publications: 67 scientists 97–106 publications: 91 scientists 107–116 publications: 113 scientists 117–126 publications: 115 scientists 127–136 publications: 130 scientists 137–146 publications: 140 scientists 147–156 publications: 155 scientists 157–166 publications: 132 scientists 167–176 publications: 133 scientists 177–186 publications: 130 scientists 187–196 publications: 140 scientists 197–206 publications: 115 scientists 207–216 publications: 125 scientists 217–226 publications: 117 scientists 227–236 publications: 99 scientists 237–246 publications: 92 scientists 247–256 publications: 100 scientists 257–266 publications: 95 scientists 267–276 publications: 88 scientists 277–286 publications: 77 scientists 287–296 publications: 74 scientists 297–306 publications: 74 scientists 307–316 publications: 62 scientists 317–326 publications: 70 scientists 327–336 publications: 59 scientists 337–346 publications: 58 scientists 347–356 publications: 45 scientists 357–366 publications: 44 scientists 367–376 publications: 36 scientists 377–386 publications: 41 scientists 387–396 publications: 32 scientists 397–406 publications: 23 scientists 407–416 publications: 28 scientists 417–426 publications: 27 scientists 427–436 publications: 25 scientists 437–446 publications: 23 scientists 447–456 publications: 23 scientists 457–466 publications: 20 scientists 467–476 publications: 12 scientists 477–486 publications: 24 scientists 487–496 publications: 18 scientists 497–506 publications: 12 scientists 507–516 publications: 13 scientists 517–526 publications: 21 scientists 527–536 publications: 12 scientists 537–546 publications: 8 scientists 547–556 publications: 16 scientists 557–566 publications: 3 scientists 567–576 publications: 11 scientists 577–586 publications: 6 scientists 587–596 publications: 5 scientists 597–606 publications: 6 scientists 607–616 publications: 7 scientists 617–626 publications: 7 scientists 627–636 publications: 10 scientists 637–646 publications: 4 scientists 647–656 publications: 3 scientists 657–658 publications: 2 scientists 659+ publications: 100 scientists
47–56 publications 659+

This scientist: 139 publications — 20th percentile

20% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 659 publications or more.

View publications distribution as a table
Number of Mechanical and Aerospace Engineering scientists by publication count, Research.com 2026 ranking edition. Based on 3,445 ranked scientists.
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
137–146 140 139
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
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
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Thomas G. Sugar D-index placement in Mechanical and Aerospace Engineering in 2026

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 Thomas G. Sugar sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 64 bars. Horizontal axis: D-Index, 30 to 93+. Vertical axis: number of scientists, 0 to 189. Most scientists, 189, have 34 D-Index. The last bar groups every scientist with 93 D-Index or more. The highlighted bar, 37 D-Index, is where this scientist sits. 30 D-Index: 83 scientists 31 D-Index: 113 scientists 32 D-Index: 144 scientists 33 D-Index: 153 scientists 34 D-Index: 189 scientists 35 D-Index: 158 scientists 36 D-Index: 139 scientists 37 D-Index: 127 scientists 38 D-Index: 130 scientists 39 D-Index: 126 scientists 40 D-Index: 104 scientists 41 D-Index: 100 scientists 42 D-Index: 107 scientists 43 D-Index: 101 scientists 44 D-Index: 103 scientists 45 D-Index: 79 scientists 46 D-Index: 88 scientists 47 D-Index: 70 scientists 48 D-Index: 83 scientists 49 D-Index: 44 scientists 50 D-Index: 64 scientists 51 D-Index: 56 scientists 52 D-Index: 50 scientists 53 D-Index: 48 scientists 54 D-Index: 58 scientists 55 D-Index: 52 scientists 56 D-Index: 48 scientists 57 D-Index: 42 scientists 58 D-Index: 34 scientists 59 D-Index: 42 scientists 60 D-Index: 37 scientists 61 D-Index: 42 scientists 62 D-Index: 44 scientists 63 D-Index: 22 scientists 64 D-Index: 33 scientists 65 D-Index: 29 scientists 66 D-Index: 23 scientists 67 D-Index: 29 scientists 68 D-Index: 24 scientists 69 D-Index: 19 scientists 70 D-Index: 34 scientists 71 D-Index: 26 scientists 72 D-Index: 19 scientists 73 D-Index: 18 scientists 74 D-Index: 19 scientists 75 D-Index: 14 scientists 76 D-Index: 19 scientists 77 D-Index: 8 scientists 78 D-Index: 18 scientists 79 D-Index: 16 scientists 80 D-Index: 12 scientists 81 D-Index: 17 scientists 82 D-Index: 11 scientists 83 D-Index: 16 scientists 84 D-Index: 7 scientists 85 D-Index: 9 scientists 86 D-Index: 8 scientists 87 D-Index: 6 scientists 88 D-Index: 6 scientists 89 D-Index: 7 scientists 90 D-Index: 10 scientists 91 D-Index: 4 scientists 92 D-Index: 4 scientists 93+ D-Index: 100 scientists
30 D-Index 93+

This scientist: 37 D-Index — 32nd percentile

32% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 93 D-Index or more.

View D-Index distribution as a table
Number of Mechanical and Aerospace Engineering scientists by D-index, Research.com 2026 ranking edition. Based on 3,445 ranked scientists.
D-Index Scientists This scientist
30 83
31 113
32 144
33 153
34 189
35 158
36 139
37 127 37
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
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
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Research.com Recognitions

  • 2015 - Fellow of the American Society of Mechanical Engineers

Overview

Thomas G. Sugar is affiliated with Arizona State University in the United States. Their research primarily spans the fields of Engineering and Medicine, with a significant focus on Biomedical Engineering and Physical Therapy, Sports Therapy, and Rehabilitation within those domains.

Themes prominent in their work include Prosthetics and Rehabilitation Robotics, Muscle Activation and Electromyography Studies, Balance, Gait, and Falls Prevention, as well as Nerve Injury and Rehabilitation research. Other topics covered include Spinal Cord Injury Research, Cardiovascular and Diving-Related Complications, and Dielectric Materials and Actuators.

They have published multiple papers in peer-reviewed venues. Notable recent papers include:

  • A robust phase oscillator design for wearable robotic systems (2020) in Robotics and Autonomous Systems
  • Origami-Inspired Wearable Robot for Trunk Support (2022) in IEEE/ASME Transactions on Mechatronics
  • Multi-tasking deteriorates trunk movement control during and after obstacle avoidance (2022) in Human Movement Science
  • Current State, Needs, and Opportunities for Wearable Robots in Military Medical Rehabilitation and Force Protection (2024) in Actuators
  • From homo sapiens to homo superior? Wearable robotics as the platform for transhumanist marketing (2023) in Journal of the Academy of Marketing Science

Frequent publication venues for Thomas G. Sugar include Human Movement Science, International Robotics & Automation Journal, Actuators, Robotics and Autonomous Systems, and IEEE/ASME Transactions on Mechatronics.

Repeated collaborations have been established with several co-authors, notably:

  • Sangram Redkar
  • Kevin W. Hollander
  • Hyunglae Lee
  • W. Brandon Martin
  • Sandesh G. Bhat

Their expertise intersects with fields of study emphasizing rehabilitation technologies, with a record of contributions in related multidisciplinary areas including surgery and cognitive neuroscience.

Thomas G. Sugar has been recognized as a Fellow of the American Society of Mechanical Engineers since 2015.

Best Publications

  • Compliant actuator designs

    R. Ham;T. Sugar;B. Vanderborght;K. Hollander

  • Design and Control of RUPERT: A Device for Robotic Upper Extremity Repetitive Therapy

    T.G. Sugar;Jiping He;E.J. Koeneman;J.B. Koeneman

  • SPARKy 3: Design of an active robotic ankle prosthesis with two actuated degrees of freedom using regenerative kinetics

    R.D. Bellman;M.A. Holgate;T.G. Sugar

  • An Active Foot-Ankle Prosthesis With Biomechanical Energy Regeneration

    Joseph K. Hitt;Thomas G. Sugar;Matthew Holgate;Ryan Bellman

  • Control of cooperating mobile manipulators

    T.G. Sugar;V. Kumar

  • An efficient robotic tendon for gait assistance.

    Kevin W. Hollander;Robert Ilg;Thomas G. Sugar;Donald Herring

  • Adjustable robotic tendon using a 'Jack Spring'/spl trade/

    K.W. Hollander;T.G. Sugar;D.E. Herring

  • An architecture for tightly coupled multi-robot cooperation

    L. Chaimowicz;T. Sugar;V. Kumar;M.F.M. Campos

  • Comparison of Mechanical Design and Energy Consumption of Adaptable, Passive-compliant Actuators

    Bram Vanderborght;Ronald Van Ham;Dirk Lefeber;Thomas G. Sugar

  • Robotic transtibial prosthesis with biomechanical energy regeneration

    Joseph Hitt;Thomas Sugar;Matthew A. Holgate;Ryan Bellman

  • A novel control algorithm for wearable robotics using phase plane invariants

    Matthew A. Holgate;Thomas G. Sugar;Alexander W. Bohler

  • Decentralized control of cooperating mobile manipulators

    T. Sugar;V. Kumar

  • The SPARKy (Spring Ankle With Regenerative Kinetics) Project: Design and Analysis of a Robotic Transtibial Prosthesis With Regenerative Kinetics

    Joseph K. Hitt;Ryan Bellman;Matthew Holgate;Thomas G. Sugar

  • Design of a Robotic Gait Trainer using Spring Over Muscle Actuators for Ankle Stroke Rehabilitation

    Kartik Bharadwaj;Thomas G. Sugar;James B. Koeneman;Edward J. Koeneman

  • Design, implementation and test results of a robust control method for a powered ankle foot orthosis (AFO)

    A.W. Boehler;K.W. Hollander;T.G. Sugar;Dosun Shin

  • The SPARKy (Spring Ankle with Regenerative kinetics) project: Choosing a DC motor based actuation method

    M.A. Holgate;J.K. Hitt;R.D. Bellman;T.G. Sugar

  • Dynamically Controlled Ankle-Foot Orthosis (DCO) with Regenerative Kinetics: Incrementally Attaining User Portability

    J. Hitt;A.M. Oymagil;T. Sugar;K. Hollander

  • A novel selective compliant actuator

    Thomas G. Sugar

  • Control algorithms for ankle robots: A reflection on the state-of-the-art and presentation of two novel algorithms

    M.A. Holgate;A.W. Bohler;T.G. Sugar

  • A powered prosthetic ankle joint for walking and running.

    Martin Grimmer;Matthew Holgate;Robert Holgate;Alexaander Boehler

  • Decentralized control of cooperating mobile manipulators

    T. G. Sugar

Frequent Co-Authors

Jiping He
Jiping He Beijing Institute of Technology
Bram Vanderborght
Bram Vanderborght Vrije Universiteit Brussel
George Wolf
George Wolf University of California, Berkeley
Jaydev P. Desai
Jaydev P. Desai Georgia Institute of Technology
Dirk Lefeber
Dirk Lefeber Radboud University
Xiaoping Yun
Xiaoping Yun Naval Postgraduate School
Nicola Vitiello
Nicola Vitiello Sant'Anna School of Advanced Studies
Alain Berthoz
Alain Berthoz Collège de France
Clark C. Presson
Clark C. Presson Arizona State University
Yasuhisa Hasegawa
Yasuhisa Hasegawa Nagoya University

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