World's Best Scientists 2026 revealed!

D-Index & Metrics

Engineering and Technology

D-Index
45
Citations
7909
World Ranking
5491
National Ranking
1055

Alvin C.K. Lai 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 Alvin C.K. Lai 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: 113 publications — 13th percentile

13% of scientists in this discipline score the same or lower.

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

Alvin C.K. Lai 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 Alvin C.K. Lai 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: 45 D-Index — 46th percentile

46% of scientists in this discipline score the same or lower.

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

Overview

Alvin C.K. Lai is affiliated with the City University of Hong Kong in China and has a research portfolio that spans the fields of Medicine, Environmental Science, and Engineering. Their work covers a range of subfields including Pulmonary and Respiratory Medicine, Health, Toxicology and Mutagenesis, Infectious Diseases, Atmospheric Science, and Environmental Engineering.

The scientist's research focuses on key topics such as Infection Control and Ventilation, Indoor Air Quality and Microbial Exposure, Air Quality and Health Impacts, Infection Control in Healthcare, Building Energy and Comfort Optimization, Atmospheric Chemistry and Aerosols, and Skin Protection and Aging.

Alvin C.K. Lai has published extensively in several scientific venues. The most frequent publication venues include:

  • Building and Environment
  • Journal of Hazardous Materials
  • Indoor Air
  • Energy and Buildings
  • Environmental Science & Technology

Their recent papers illustrate a focus on air quality, disinfection technology, and environmental health. Notable publications include:

  • "Disinfection by in-duct ultraviolet lamps under different environmental conditions in turbulent airflows," 2020, Indoor Air
  • "Thermal conductivity enhancement of a sodium acetate trihydrate-potassium chloride-urea/expanded graphite composite phase-change material for latent heat thermal energy storage," 2020, Energy and Buildings
  • "Sulfate Formation in Incense Burning Particles: A Single-Particle Mass Spectrometric Study," 2022, Environmental Science & Technology Letters
  • "Evaluation of Single-Pass Disinfection Performance of Far-UVC Light on Airborne Microorganisms in Duct Flows," 2022, Environmental Science & Technology
  • "A novel upper-room UVC-LED irradiation system for disinfection of indoor bioaerosols under different operating and airflow conditions," 2020, Journal of Hazardous Materials

Alvin C.K. Lai collaborates regularly with several researchers including Huihui Zhang, Sunday S. Nunayon, Patrick K. H. Lee, Chak K. Chan, and Zhancong Liang. Huihui Zhang has coauthored 17 publications, reflecting a significant collaborative relationship.

Best Publications

  • Modeling Indoor Particle Deposition from Turbulent Flow onto Smooth Surfaces

    Alvin C. K. Lai;William W. Nazaroff

  • Indoor Particulate Matter of Outdoor Origin: Importance of Size-Dependent Removal Mechanisms

    William J. Riley;Thomas E. McKone;and Alvin C. K. Lai;William W. Nazaroff

  • Effects of room furnishings and air speed on particle deposition rates indoors

    Tracy L. Thatcher;Alvin C.K. Lai;Rosa Moreno-Jackson;Richard G. Sextro

  • Modeling particle distribution and deposition in indoor environments with a new drift–flux model

    Fangzhi Chen;Simon C.M. Yu;Alvin C.K. Lai

  • Review of analytical models for heat transfer by vertical ground heat exchangers (GHEs): A perspective of time and space scales

    Min Li;Alvin C.K. Lai

  • An evaluation model for indoor environmental quality (IEQ) acceptance in residential buildings

    A. C.K. Lai;Kwok Wai Mui;Ling Tim Wong;L. Y. Law

  • Particle deposition indoors: a review

    A. C. K. Lai

  • New temperature response functions (G functions) for pile and borehole ground heat exchangers based on composite-medium line-source theory

    Min Li;Alvin C.K. Lai

  • Particle deposition indoors: a review.

    Unknown

  • Effectiveness of facemasks to reduce exposure hazards for airborne infections among general populations

    A. C. K. Lai;C. K. M. Poon;A. C. T. Cheung

  • Inhalation transfer factors for air pollution health risk assessment.

    Alvin C.K. Lai;Tracy L. Thatcher;William W. Nazaroff;William W. Nazaroff

  • Heat-source solutions to heat conduction in anisotropic media with application to pile and borehole ground heat exchangers

    Min Li;Alvin C.K. Lai

  • Analytical model for short-time responses of ground heat exchangers with U-shaped tubes: Model development and validation

    Min Li;Alvin C.K. Lai

  • An improved model for predicting performance of finned tube heat exchanger under frosting condition, with frost thickness variation along fin

    C.P. Tso;Y.C. Cheng;A.C.K. Lai

  • Comparison of a new Eulerian model with a modified Lagrangian approach for particle distribution and deposition indoors

    Alvin C.K. Lai;F.Z. Chen

  • Modeling particle deposition and distribution in a chamber with a two-equation Reynolds-averaged Navier–Stokes model

    Alvin C.K. Lai;Fangzhi Chen

  • Full-scale temperature response function (G-function) for heat transfer by borehole ground heat exchangers (GHEs) from sub-hour to decades

    Min Li;Ping Li;Vincent Chan;Alvin C.K. Lai

  • Numerical modeling of exhaled droplet nuclei dispersion and mixing in indoor environments.

    Kwok Wai Mui;Ling Tim Wong;C. L. Wu;Alvin C K Lai

  • Thermodynamic optimization of ground heat exchangers with single U-tube by entropy generation minimization method

    Min Li;Alvin C.K. Lai

  • Parameter estimation of in-situ thermal response tests for borehole ground heat exchangers

    Min Li;Alvin C.K. Lai

  • Supermicron particle deposition from turbulent chamber flow onto smooth and rough vertical surfaces

    A.C.K. Lai;W.W. Nazaroff

Frequent Co-Authors

William W. Nazaroff
William W. Nazaroff University of California, Berkeley
Gongsheng Huang
Gongsheng Huang City University of Hong Kong
Dengjia Wang
Dengjia Wang Xi'an University of Architecture and Technology
Simon C. M. Yu
Simon C. M. Yu Hong Kong Polytechnic University
Lance Wallace
Lance Wallace Environmental Protection Agency
Bin Zhao
Bin Zhao Tsinghua University
Wayne R. Ott
Wayne R. Ott Stanford University
Pawel Wargocki
Pawel Wargocki Technical University of Denmark
Charles J. Weschler
Charles J. Weschler Rutgers, The State University of New Jersey
Kin Liao
Kin Liao Khalifa University

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