World's Best Scientists 2026 revealed!

D-Index & Metrics

Mechanical and Aerospace Engineering

D-Index
30
Citations
2528
World Ranking
3441
National Ranking
24

Ramiro C. Martins 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 Ramiro C. Martins sits on this spectrum.

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 publications 659+

This scientist: 85 publications — 4th percentile

4% of scientists in this discipline score the same or lower.

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

Ramiro C. Martins 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 Ramiro C. Martins sits on this spectrum.

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: 30 D-Index — 2nd percentile

2% of scientists in this discipline score the same or lower.

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

Best Publications

  • Friction coefficient in FZG gears lubricated with industrial gear oils : Biodegradable ester vs. mineral oil

    R. Martins;J. Seabra;A. Brito;Ch. Seyfert

  • Gearbox power loss. Part II: Friction losses in gears

    Carlos M.C.G. Fernandes;Pedro M.T. Marques;Ramiro C. Martins;Jorge H.O. Seabra

  • Mesh stiffness models for cylindrical gears: A detailed review

    João D.M. Marafona;Pedro M.T. Marques;Ramiro C. Martins;Jorge H.O. Seabra

  • Finite element method model to predict bulk and flash temperatures on polymer gears

    Carlos M.C.G. Fernandes;Diogo M.P. Rocha;Ramiro C. Martins;Luis Magalhães

  • Molybdenum disulphide/titanium low friction coating for gears application

    R.I. Amaro;R.C. Martins;J.O. Seabra;Nathalie Renevier

  • Gearbox power loss. Part I: Losses in rolling bearings

    Carlos M.C.G. Fernandes;Pedro M.T. Marques;Ramiro C. Martins;Jorge H.O. Seabra

  • Influence of low friction coatings on the scuffing load capacity and efficiency of gears

    R. Martins;R. Amaro;J. Seabra

  • Austempered ductile iron (ADI) gears : Power loss, pitting and micropitting

    R. Martins;J. Seabra;L. Magalhães

  • Influence of tooth profile and oil formulation on gear power loss

    Luís Magalhães;Ramiro Martins;Cristiano Locateli;Jorge Seabra

  • Friction torque of thrust ball bearings lubricated with wind turbine gear oils

    Carlos M.C.G. Fernandes;Ramiro C. Martins;Jorge H.O. Seabra

  • Torque loss and wear of FZG gears lubricated with wind turbine gear oils using an ionic liquid as additive

    Carlos M.C.G. Fernandes;A. Hernandez Battez;A. Hernandez Battez;R. González;R. González;R. Monge

  • Power loss and load distribution models including frictional effects for spur and helical gears

    Pedro M.T. Marques;Ramiro C. Martins;Jorge H.O. Seabra

  • MoS2/Ti low-friction coating for gears

    R.C. Martins;Paulo S. Moura;J.O. Seabra

  • Torque loss of type C40 FZG gears lubricated with wind turbine gear oils

    Carlos M.C.G. Fernandes;Ramiro C. Martins;Jorge H.O. Seabra

  • Friction torque of cylindrical roller thrust bearings lubricated with wind turbine gear oils

    Carlos M.C.G. Fernandes;Ramiro C. Martins;Jorge H.O. Seabra

  • Gearbox power loss. Part III: Application to a parallel axis and a planetary gearbox

    Carlos M.C.G. Fernandes;Pedro M.T. Marques;Ramiro C. Martins;Jorge H.O. Seabra

  • Two phosphonium cation-based ionic liquids used as lubricant additive: Part I: Film thickness and friction characteristics

    A. Hernández Battez;A. Hernández Battez;Carlos M.C.G. Fernandes;Ramiro C. Martins;M. Bartolomé

  • Efficiency of a gearbox lubricated with wind turbine gear oils

    Pedro M.T. Marques;Carlos M.C.G. Fernandes;Ramiro C. Martins;Jorge H.O. Seabra

  • Friction torque in rolling bearings lubricated with axle gear oils

    Maroua Hammami;Maroua Hammami;Ramiro Martins;Carlos Fernandes;Jorge Seabra

  • Power losses at low speed in a gearbox lubricated with wind turbine gear oils with special focus on churning losses

    Pedro M.T. Marques;Carlos M.C.G. Fernandes;Ramiro C. Martins;Jorge H.O. Seabra

Frequent Co-Authors

Mohamed Haddar
Mohamed Haddar University of Sfax
A. Hernández Battez
A. Hernández Battez University of Oviedo
Filipe S. Silva
Filipe S. Silva University of Minho

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