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
Engineering and Technology 72 932 880 169 168 238 16093
Environmental Sciences 71 1628 1549 162 160 226 15023

Jianlei Niu publications per year

The chart shows the history of publications by Jianlei Niu between 1992 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Jianlei Niu published across 34 years, from 1992 to 2025, averaging 9 papers a year. Output peaked at 26 publications in 2024. 51 of the 306 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1992 to 2025. Vertical axis: number of publications, 0 to 26. Peak 26 publications in 2024. 1992: 1 publication 1993: 0 publications 1994: 2 publications 1995: 1 publication 1996: 0 publications 1997: 1 publication 1998: 2 publications 1999: 0 publications 2000: 1 publication 2001: 5 publications 2002: 12 publications 2003: 6 publications 2004: 7 publications 2005: 12 publications 2006: 7 publications 2007: 12 publications 2008: 7 publications 2009: 6 publications 2010: 7 publications 2011: 10 publications 2012: 13 publications 2013: 7 publications 2014: 16 publications 2015: 11 publications 2016: 8 publications 2017: 16 publications 2018: 8 publications 2019: 14 publications 2020: 13 publications 2021: 14 publications 2022: 15 publications 2023: 21 publications 2024: 26 publications 2025: 25 publications
1992 2025

306 publications in total across all disciplines

View publications per year as a table
Jianlei Niu: publications per year, 1992 to 2025
Year Publications
1992 1
1993 0
1994 2
1995 1
1996 0
1997 1
1998 2
1999 0
2000 1
2001 5
2002 12
2003 6
2004 7
2005 12
2006 7
2007 12
2008 7
2009 6
2010 7
2011 10
2012 13
2013 7
2014 16
2015 11
2016 8
2017 16
2018 8
2019 14
2020 13
2021 14
2022 15
2023 21
2024 26
2025 25
Total 306
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Jianlei Niu publications per year - data summary

  • Jianlei Niu, a Engineering and Technology scholar from Hong Kong Polytechnic University, has 306 publications recorded across 34 years, from 1992 to 2025.
  • The oldest publication on record dates to 1992 and the most recent to 2025.
  • The most productive year is 2024, with 26 publications.
  • The least productive years with any output are 1992, 1995, 1997 and 2000, with 1 publication each.
  • 3 of the 34 years in the span carry no publications at all (1993, 1996 and 1999).
  • The rate of publication averages 9.0 papers per year over the whole span, or 9.9 per year counting only the 31 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 101 publications, 33% of the career total.
  • Split into equal eras - 1992-2003: 31 publications (2.6 per year); 2004-2015: 115 publications (9.6 per year); 2016-2025: 160 publications (16.0 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Jianlei Niu 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 Jianlei Niu 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, 238–247 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: 238 publications — 61st percentile

61% 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
238–247 260 238
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
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Jianlei Niu publication distribution in Engineering and Technology in 2026 - data summary

  • The chart plots the publication count of all 9,796 Engineering and Technology scientists ranked by Research.com in 2026, grouped into 78 ranges running from 38–47 to 804+ publications.
  • Jianlei Niu, a Engineering and Technology scholar from Hong Kong Polytechnic University, records 238 publications - the 61st percentile of the discipline.
  • 61% of ranked Engineering and Technology scientists score the same or lower than Jianlei Niu, and about 39% score higher.
  • The median of the discipline falls in the 198–207 publications range, and Jianlei Niu ranks above the median.
  • The most crowded range is 148–157 publications, holding 457 scientists (5% of the field).
  • 61% of the field sits in the lowest quarter of the value range (up to 228–237 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 804 publications or more, 100 scientists in all (1% of the field).

Jianlei Niu 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 Jianlei Niu 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, 72 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: 72 D-Index — 91st percentile

91% 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 72
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
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Jianlei Niu D-index placement in Engineering and Technology in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 9,796 Engineering and Technology scientists ranked by Research.com in 2026, grouped into 78 ranges running from 30 to 107+ D-Index.
  • Jianlei Niu, a Engineering and Technology scholar from Hong Kong Polytechnic University, records 72 D-Index - the 91st percentile of the discipline.
  • 91% of ranked Engineering and Technology scientists score the same or lower than Jianlei Niu, and about 9% score higher.
  • The median of the discipline falls in the 47 D-Index range, and Jianlei Niu ranks above the median.
  • The most crowded range is 42 D-Index, holding 426 scientists (4% of the field).
  • 57% of the field sits in the lowest quarter of the value range (up to 49 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 107 D-Index or more, 99 scientists in all (1% of the field).

Overview

Jianlei Niu is affiliated with Hong Kong Polytechnic University in China, specializing in Environmental Science and Engineering. Their research encompasses several fields, with a strong focus on Environmental Engineering, Building and Construction, and Mechanical Engineering, among others.

The main research topics include:

  • Urban Heat Island Mitigation
  • Building Energy and Comfort Optimization
  • Wind and Air Flow Studies
  • Thermoregulation and physiological responses
  • Phase Change Materials Research
  • Aerodynamics and Fluid Dynamics Research
  • Noise Effects and Management

Jianlei Niu has contributed extensively to academic literature, publishing primarily in these venues:

  • Building and Environment
  • Sustainable Cities and Society
  • Energy and Buildings
  • SSRN Electronic Journal
  • E3S Web of Conferences

Their recent papers include:

  • Tracer gas is a suitable surrogate of exhaled droplet nuclei for studying airborne transmission in the built environment (2020), published in Building Simulation
  • A CFD based approach for determining the optimum inclination angle of a roof-top solar chimney for building ventilation (2020), published in Solar Energy
  • Performance optimization for shell-and-tube PCM thermal energy storage (2020), published in Journal of Energy Storage
  • Dynamic thermal pleasure in outdoor environments - temporal alliesthesia (2021), published in The Science of The Total Environment
  • Boundary layer wind tunnel tests of outdoor airflow field around urban buildings: A review of methods and status (2022), published in Renewable and Sustainable Energy Reviews

Frequent co-authors collaborating with Jianlei Niu include:

  • Naiping Gao
  • Cheuk Ming Mak
  • Yongxin Xie
  • Yi Zhao
  • Ruibin Li

Best Publications

  • Role of ventilation in airborne transmission of infectious agents in the built environment - a multidisciplinary systematic review.

    Yiping Li;G.M. Leung;J.W. Tang;X. Yang

  • Thermal comfort models: A review and numerical investigation

    Yuanda Cheng;Jianlei Niu;Naiping Gao

  • Energy savings potential of chilled-ceiling combined with desiccant cooling in hot and humid climates

    Jianlei Niu;L. Z. Zhang;H. G. Zuo

  • Performance comparisons of desiccant wheels for air dehumidification and enthalpy recovery

    L. Z. Zhang;Jianlei Niu

  • Modeling particle dispersion and deposition in indoor environments

    N. P. Gao;Jianlei Niu

  • An experimental study of convective heat transfer with microencapsulated phase change material suspension: Laminar flow in a circular tube under constant heat flux

    Binjiao Chen;Xin Wang;Ruolang Zeng;Yinping Zhang

  • Membrane-based Enthalpy Exchanger: material considerations and clarification of moisture resistance

    Jianlei Niu;L. Z. Zhang

  • CFD study on micro-environment around human body and personalized ventilation

    Naiping Gao;Jianlei Niu

  • CFD simulation of the wind environment around an isolated high-rise building: An evaluation of SRANS, LES and DES models

    Jianlin Liu;Jianlei Niu

  • A review of advanced air distribution methods - theory, practice, limitations and solutions

    Bin Yang;Bin Yang;A.K. Melikov;Alan Kabanshi;C. Zhang

  • CFD study of exhaled droplet transmission between occupants under different ventilation strategies in a typical office room

    Qibin He;Jianlei Niu;Naiping Gao;Tong Zhu

  • Indoor humidity behaviors associated with decoupled cooling in hot and humid climates

    L. Z. Zhang;Jianlei Niu

  • Flow and heat transfer behaviors of phase change material slurries in a horizontal circular tube

    Xichun Wang;Jianlei Niu;Yi Li;Xin Wang

  • Effectiveness Correlations for Heat and Moisture Transfer Processes in an Enthalpy Exchanger With Membrane Cores

    L. Z. Zhang;Jianlei Niu

  • Investigation into the differences among several outdoor thermal comfort indices against field survey in subtropics

    Zhaosong Fang;Xiwen Feng;Jianlin Liu;Zhang Lin

  • A new method to assess spatial variations of outdoor thermal comfort: Onsite monitoring results and implications for precinct planning

    Jianlei Niu;Jianlei Niu;Jianlin Liu;Tsz cheung Lee;Zhang Lin

  • Energy requirements for conditioning fresh air and the long-term savings with a membrane-based energy recovery ventilator in Hong Kong

    L. Z. Zhang;Jianlei Niu

  • The airborne transmission of infection between flats in high-rise residential buildings: Tracer gas simulation.

    N. P. Gao;Jianlei Niu;M. Perino;P. Heiselberg

  • A review of the application of radiant cooling & heating systems in Mainland China

    R. Hu;Jianlei Niu

  • Transient CFD simulation of the respiration process and inter-person exposure assessment.

    Naiping Gao;Jianlei Niu

Frequent Co-Authors

Cheuk Ming Mak
Cheuk Ming Mak Hong Kong Polytechnic University
Naiping Gao
Naiping Gao Tongji University
Kenny C. S Kwok
Kenny C. S Kwok University of Sydney
Shiming Deng
Shiming Deng Qatar University
Kam Tim Tse
Kam Tim Tse Hong Kong University of Science and Technology
Jian-Yong Wu
Jian-Yong Wu Hong Kong Polytechnic University
Yinping Zhang
Yinping Zhang Tsinghua University
Richard de Dear
Richard de Dear University of Sydney
Yi Li
Yi Li University of Manchester
Per Heiselberg
Per Heiselberg Aalborg University

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