World's Best Scientists 2026 revealed!
William O'Brien

William O'Brien

D-Index & Metrics

Engineering and Technology

D-Index
49
Citations
8892
World Ranking
4328
National Ranking
180

William O'Brien 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 William O'Brien sits on this spectrum.

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 publications 804+

This scientist: 168 publications — 35th percentile

35% of scientists in this discipline score the same or lower.

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

William O'Brien 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 William O'Brien sits on this spectrum.

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: 49 D-Index — 57th percentile

57% of scientists in this discipline score the same or lower.

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

Overview

William O'Brien is affiliated with Carleton University in Canada and is engaged primarily in engineering research. The focus of their work lies within the domains of building and construction, environmental engineering, social psychology, speech and hearing, and electrical and electronic engineering. Their research contributions span topics related to building energy and comfort optimization, facilities and workplace management, noise effects and management, wind and air flow studies, sustainable building design and assessment, urban heat island mitigation, and work-family balance challenges.

The scientist has contributed extensively to publication venues that include:

  • Building and Environment
  • Energy and Buildings
  • Science and Technology for the Built Environment
  • Building Simulation Conference proceedings
  • Journal of Building Performance Simulation

Some of the recent papers authored or co-authored by William O'Brien include:

  • Introducing IEA EBC annex 79: Key challenges and opportunities in the field of occupant-centric building design and operation, 2020, Building and Environment
  • Does telecommuting save energy? A critical review of quantitative studies and their research methods, 2020, Energy and Buildings
  • An international review of occupant-related aspects of building energy codes and standards, 2020, Building and Environment

Frequent co-authors collaborating with William O'Brien are:

  • Burak Gunay
  • Marianne F. Touchie
  • H. Burak Gunay
  • Pedram Nojedehi
  • Tianzhen Hong

William O'Brien's work is situated in the field of engineering with a significant number of publications focusing specifically on building and construction. Their research addresses both technical aspects such as energy optimization and airflow studies, as well as human-centered factors related to occupant comfort, workplace management, and social considerations within built environments.

Best Publications

  • Occupant behavior modeling for building performance simulation: Current state and future challenges:

    Da Yan;William O’Brien;Tianzhen Hong;Xiaohang Feng

  • Assessing gaps and needs for integrating building performance optimization tools in net zero energy buildings design

    Shady Galal Mohamed Attia;Mohamed Hamdy;William O'Brien;Salvatore Carlucci

  • The contextual factors contributing to occupants' adaptive comfort behaviors in offices – A review and proposed modeling framework

    William O'Brien;H. Burak Gunay

  • A critical review of observation studies, modeling, and simulation of adaptive occupant behaviors in offices

    H. Burak Gunay;William O'Brien;Ian Beausoleil-Morrison

  • Manually-operated window shade patterns in office buildings: A critical review

    William O'Brien;Konstantinos Kapsis;Andreas K. Athienitis

  • Introducing IEA EBC annex 79: Key challenges and opportunities in the field of occupant-centric building design and operation

    William O'Brien;Andreas Wagner;Marcel Schweiker;Marcel Schweiker;Ardeshir Mahdavi

  • A critical review of field implementations of occupant-centric building controls

    June Young Park;Mohamed M. Ouf;Burak Gunay;Yuzhen Peng

  • Development and implementation of an adaptive lighting and blinds control algorithm

    H. Burak Gunay;William O'Brien;Ian Beausoleil-Morrison;Sara Gilani

  • Modelling, Design, and Optimization of Net-Zero Energy Buildings

    Andreas Athienitis;William O'Brien

  • A review of factors affecting occupant comfort in multi-unit residential buildings

    Maedot S. Andargie;Marianne Touchie;William O'Brien

  • Does telecommuting save energy? A critical review of quantitative studies and their research methods

    William O'Brien;Fereshteh Yazdani Aliabadi

  • Implementation and comparison of existing occupant behaviour models in EnergyPlus

    H. Burak Gunay;William O'Brien;Ian Beausoleil-Morrison

  • A review of select human-building interfaces and their relationship to human behavior, energy use and occupant comfort

    Julia K. Day;Claire McIlvennie;Connor Brackley;Mariantonietta Tarantini

  • On occupant-centric building performance metrics

    William Thomas O'Brien;Isabella Gaetani;Salvatore Carlucci;Pieter-Jan Hoes

  • Development and implementation of automated fault detection and diagnostics for building systems: A review

    Zixiao Shi;William O'Brien

  • An international review of occupant-related aspects of building energy codes and standards

    William O'Brien;Farhang Tahmasebi;Rune Korsholm Andersen;Elie Azar

  • Simulation-aided occupant-centric building design: a critical review of tools, methods, and applications

    Elie Azar;William O'Brien;Salvatore Carlucci;Salvatore Carlucci;Tianzhen Hong

  • A preliminary study of representing the inter-occupant diversity in occupant modelling

    William O’Brien;H. Burak Gunay;Farhang Tahmasebi;Ardeshir Mahdavi

  • A Global Building Occupant Behavior Database

    Unknown

  • On adaptive occupant-learning window blind and lighting controls

    H. Burak Gunay;William O'Brien;Ian Beausoleil-Morrison;Brent Huchuk

  • Modeling plug-in equipment load patterns in private office spaces

    H. Burak Gunay;William O’Brien;Ian Beausoleil-Morrison;Sara Gilani

  • Comparison of machine learning models for occupancy prediction in residential buildings using connected thermostat data

    Brent Huchuk;Scott Sanner;William O'Brien

  • Oh behave! Survey stories and lessons learned from building occupants in high-performance buildings

    Julia K. Day;William O'Brien

Frequent Co-Authors

Ian Beausoleil-Morrison
Ian Beausoleil-Morrison Carleton University
Andreas K. Athienitis
Andreas K. Athienitis Concordia University
Scott Sanner
Scott Sanner University of Toronto
Bing Dong
Bing Dong Syracuse University
Tianzhen Hong
Tianzhen Hong Lawrence Berkeley National Laboratory
Guy R. Newsham
Guy R. Newsham National Research Council Canada
Azam Khan
Azam Khan Trax.co
Shady Attia
Shady Attia University of Liège
Da Yan
Da Yan Tsinghua University
Christopher Kennedy
Christopher Kennedy University of Victoria

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