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Ian J.H. Duncan

Ian J.H. Duncan

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Animal Science and Veterinary 54 479 440 37 37 128 10166

Ian J.H. Duncan publications per year

The chart shows the history of publications by Ian J.H. Duncan between 1970 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ian J.H. Duncan published across 56 years, from 1970 to 2025, averaging 2.9 papers a year. Output peaked at 10 publications in 2022. 6 of the 160 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1970 to 2025. Vertical axis: number of publications, 0 to 10. Peak 10 publications in 2022. 1970: 1 publication 1971: 1 publication 1972: 4 publications 1973: 0 publications 1974: 2 publications 1975: 2 publications 1976: 1 publication 1977: 2 publications 1978: 6 publications 1979: 2 publications 1980: 4 publications 1981: 7 publications 1982: 1 publication 1983: 1 publication 1984: 1 publication 1985: 2 publications 1986: 3 publications 1987: 3 publications 1988: 6 publications 1989: 7 publications 1990: 4 publications 1991: 5 publications 1992: 3 publications 1993: 0 publications 1994: 0 publications 1995: 4 publications 1996: 2 publications 1997: 1 publication 1998: 8 publications 1999: 1 publication 2000: 5 publications 2001: 4 publications 2002: 4 publications 2003: 2 publications 2004: 3 publications 2005: 1 publication 2006: 3 publications 2007: 1 publication 2008: 6 publications 2009: 3 publications 2010: 9 publications 2011: 3 publications 2012: 3 publications 2013: 1 publication 2014: 2 publications 2015: 2 publications 2016: 2 publications 2017: 0 publications 2018: 0 publications 2019: 0 publications 2020: 2 publications 2021: 1 publication 2022: 10 publications 2023: 3 publications 2024: 3 publications 2025: 3 publications
1970 2025

160 publications in total across all disciplines

View publications per year as a table
Ian J.H. Duncan: publications per year, 1970 to 2025
Year Publications
1970 1
1971 1
1972 4
1973 0
1974 2
1975 2
1976 1
1977 2
1978 6
1979 2
1980 4
1981 7
1982 1
1983 1
1984 1
1985 2
1986 3
1987 3
1988 6
1989 7
1990 4
1991 5
1992 3
1993 0
1994 0
1995 4
1996 2
1997 1
1998 8
1999 1
2000 5
2001 4
2002 4
2003 2
2004 3
2005 1
2006 3
2007 1
2008 6
2009 3
2010 9
2011 3
2012 3
2013 1
2014 2
2015 2
2016 2
2017 0
2018 0
2019 0
2020 2
2021 1
2022 10
2023 3
2024 3
2025 3
Total 160
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Ian J.H. Duncan publication distribution in Animal Science and Veterinary in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Animal Science and Veterinary in 2026. The highlighted bar marks where Ian J.H. Duncan sits on this spectrum.

No. of scientists
25 50 75 100
Bar chart with 84 bars. Horizontal axis: publications, 29–33 to 442+. Vertical axis: number of scientists, 0 to 109. Most scientists, 109, have 119–123 publications. The last bar groups every scientist with 442 publications or more. The highlighted bar, 124–128 publications, is where this scientist sits. 29–33 publications: 1 scientist 34–38 publications: 6 scientists 39–43 publications: 17 scientists 44–48 publications: 23 scientists 49–53 publications: 28 scientists 54–58 publications: 44 scientists 59–63 publications: 66 scientists 64–68 publications: 75 scientists 69–73 publications: 71 scientists 74–78 publications: 85 scientists 79–83 publications: 108 scientists 84–88 publications: 105 scientists 89–93 publications: 84 scientists 94–98 publications: 103 scientists 99–103 publications: 97 scientists 104–108 publications: 95 scientists 109–113 publications: 89 scientists 114–118 publications: 88 scientists 119–123 publications: 109 scientists 124–128 publications: 93 scientists 129–133 publications: 89 scientists 134–138 publications: 95 scientists 139–143 publications: 92 scientists 144–148 publications: 80 scientists 149–153 publications: 75 scientists 154–158 publications: 74 scientists 159–163 publications: 67 scientists 164–168 publications: 53 scientists 169–173 publications: 62 scientists 174–178 publications: 63 scientists 179–183 publications: 50 scientists 184–188 publications: 55 scientists 189–193 publications: 50 scientists 194–198 publications: 27 scientists 199–203 publications: 44 scientists 204–208 publications: 31 scientists 209–213 publications: 28 scientists 214–218 publications: 38 scientists 219–223 publications: 33 scientists 224–228 publications: 36 scientists 229–233 publications: 29 scientists 234–238 publications: 35 scientists 239–243 publications: 23 scientists 244–248 publications: 24 scientists 249–253 publications: 29 scientists 254–258 publications: 28 scientists 259–263 publications: 21 scientists 264–268 publications: 25 scientists 269–273 publications: 11 scientists 274–278 publications: 18 scientists 279–283 publications: 13 scientists 284–288 publications: 18 scientists 289–293 publications: 10 scientists 294–298 publications: 12 scientists 299–303 publications: 11 scientists 304–308 publications: 15 scientists 309–313 publications: 14 scientists 314–318 publications: 14 scientists 319–323 publications: 8 scientists 324–328 publications: 8 scientists 329–333 publications: 13 scientists 334–338 publications: 14 scientists 339–343 publications: 13 scientists 344–348 publications: 10 scientists 349–353 publications: 11 scientists 354–358 publications: 5 scientists 359–363 publications: 8 scientists 364–368 publications: 8 scientists 369–373 publications: 6 scientists 374–378 publications: 7 scientists 379–383 publications: 8 scientists 384–388 publications: 3 scientists 389–393 publications: 4 scientists 394–398 publications: 5 scientists 399–403 publications: 8 scientists 404–408 publications: 5 scientists 409–413 publications: 4 scientists 414–418 publications: 3 scientists 419–423 publications: 8 scientists 424–428 publications: 5 scientists 429–433 publications: 3 scientists 434–438 publications: 5 scientists 439–441 publications: 5 scientists 442+ publications: 99 scientists
29–33 publications 442+

This scientist: 128 publications — 44th percentile

44% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 442 publications or more.

View publications distribution as a table
Number of Animal Science and Veterinary scientists by publication count, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
Publications Scientists This scientist
29–33 1
34–38 6
39–43 17
44–48 23
49–53 28
54–58 44
59–63 66
64–68 75
69–73 71
74–78 85
79–83 108
84–88 105
89–93 84
94–98 103
99–103 97
104–108 95
109–113 89
114–118 88
119–123 109
124–128 93 128
129–133 89
134–138 95
139–143 92
144–148 80
149–153 75
154–158 74
159–163 67
164–168 53
169–173 62
174–178 63
179–183 50
184–188 55
189–193 50
194–198 27
199–203 44
204–208 31
209–213 28
214–218 38
219–223 33
224–228 36
229–233 29
234–238 35
239–243 23
244–248 24
249–253 29
254–258 28
259–263 21
264–268 25
269–273 11
274–278 18
279–283 13
284–288 18
289–293 10
294–298 12
299–303 11
304–308 15
309–313 14
314–318 14
319–323 8
324–328 8
329–333 13
334–338 14
339–343 13
344–348 10
349–353 11
354–358 5
359–363 8
364–368 8
369–373 6
374–378 7
379–383 8
384–388 3
389–393 4
394–398 5
399–403 8
404–408 5
409–413 4
414–418 3
419–423 8
424–428 5
429–433 3
434–438 5
439–441 5
442+ 99
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Ian J.H. Duncan D-index placement in Animal Science and Veterinary in 2026

The chart shows the D-index (discipline H-index) distribution of Animal Science and Veterinary scientists ranked by Research.com in 2026. The highlighted bar marks where Ian J.H. Duncan sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 58 bars. Horizontal axis: D-Index, 20 to 77+. Vertical axis: number of scientists, 0 to 158. Most scientists, 158, have 31 D-Index. The last bar groups every scientist with 77 D-Index or more. The highlighted bar, 54 D-Index, is where this scientist sits. 20 D-Index: 5 scientists 21 D-Index: 22 scientists 22 D-Index: 31 scientists 23 D-Index: 44 scientists 24 D-Index: 53 scientists 25 D-Index: 66 scientists 26 D-Index: 80 scientists 27 D-Index: 101 scientists 28 D-Index: 106 scientists 29 D-Index: 116 scientists 30 D-Index: 154 scientists 31 D-Index: 158 scientists 32 D-Index: 143 scientists 33 D-Index: 137 scientists 34 D-Index: 126 scientists 35 D-Index: 134 scientists 36 D-Index: 112 scientists 37 D-Index: 115 scientists 38 D-Index: 105 scientists 39 D-Index: 111 scientists 40 D-Index: 107 scientists 41 D-Index: 87 scientists 42 D-Index: 74 scientists 43 D-Index: 62 scientists 44 D-Index: 61 scientists 45 D-Index: 41 scientists 46 D-Index: 51 scientists 47 D-Index: 43 scientists 48 D-Index: 28 scientists 49 D-Index: 47 scientists 50 D-Index: 40 scientists 51 D-Index: 34 scientists 52 D-Index: 33 scientists 53 D-Index: 43 scientists 54 D-Index: 16 scientists 55 D-Index: 32 scientists 56 D-Index: 21 scientists 57 D-Index: 18 scientists 58 D-Index: 28 scientists 59 D-Index: 33 scientists 60 D-Index: 17 scientists 61 D-Index: 21 scientists 62 D-Index: 18 scientists 63 D-Index: 21 scientists 64 D-Index: 9 scientists 65 D-Index: 20 scientists 66 D-Index: 11 scientists 67 D-Index: 16 scientists 68 D-Index: 12 scientists 69 D-Index: 17 scientists 70 D-Index: 13 scientists 71 D-Index: 15 scientists 72 D-Index: 11 scientists 73 D-Index: 11 scientists 74 D-Index: 14 scientists 75 D-Index: 5 scientists 76 D-Index: 6 scientists 77+ D-Index: 100 scientists
20 D-Index 77+

This scientist: 54 D-Index — 85th percentile

85% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 77 D-Index or more.

View D-Index distribution as a table
Number of Animal Science and Veterinary scientists by D-index, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
D-Index Scientists This scientist
20 5
21 22
22 31
23 44
24 53
25 66
26 80
27 101
28 106
29 116
30 154
31 158
32 143
33 137
34 126
35 134
36 112
37 115
38 105
39 111
40 107
41 87
42 74
43 62
44 61
45 41
46 51
47 43
48 28
49 47
50 40
51 34
52 33
53 43
54 16 54
55 32
56 21
57 18
58 28
59 33
60 17
61 21
62 18
63 21
64 9
65 20
66 11
67 16
68 12
69 17
70 13
71 15
72 11
73 11
74 14
75 5
76 6
77+ 100
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Overview

Ian J.H. Duncan is affiliated with the University of Guelph in Canada. Their research primarily spans the fields of engineering and environmental science, with significant contributions to ocean engineering and environmental engineering. Additional subfields include mechanics of materials, mechanical engineering, and biomedical engineering.

Their work focuses on several key topics, notably enhanced oil recovery techniques, CO2 sequestration and geologic interactions, hydrocarbon exploration and reservoir analysis, reservoir engineering and simulation methods, hydraulic fracturing and reservoir analysis, catalytic processes in materials science, and methane hydrates and related phenomena.

Frequent coauthors who have collaborated extensively with Duncan include Bo Ren, Hao Chen, Frank Male, Larry W. Lake, and Jerry L. Jensen.

Publication venues where Duncan has regularly contributed encompass journals and conferences such as Fuel, Energy, Applied Energy, SPE Annual Technical Conference and Exhibition, and SPE Reservoir Evaluation & Engineering.

Selected recent publications include:

  • A machine learning model for predicting the minimum miscibility pressure of CO2 and crude oil system based on a support vector machine algorithm approach, 2020, Fuel
  • Empirical correlations for prediction of minimum miscible pressure and near-miscible pressure interval for oil and CO2 systems, 2020, Fuel
  • Economic analysis of CCUS: Accelerated development for CO2 EOR and storage in residual oil zones under the context of 45Q tax credit, 2022, Applied Energy
  • Maximizing oil production from water alternating gas (CO2) injection into residual oil zones: The impact of oil saturation and heterogeneity, 2021, Energy
  • Application of machine learning to evaluating and remediating models for energy and environmental engineering, 2022, Applied Energy

Best Publications

  • The notion of ethological need, models of motivation and animal-welfare

    B.O. Hughes;I.J.H. Duncan

  • Can fish suffer?: perspectives on sentience, pain, fear and stress

    K.P Chandroo;I.J.H Duncan;R.D Moccia

  • Understanding animal welfare.

    L. J. Keeling;J. Rushen;I. J. H. Duncan

  • The influence of strain and environmental factors upon feather pecking and cannibalism in fowls.

    Unknown

  • The changing concept of animal sentience

    Ian J.H. Duncan

  • Animal welfare defined in terms of feelings

    I.J.H. Duncan

  • Thwarting of feeding behaviour in the domestic fowl.

    Unknown

  • THE IMPLICATIONS OF COGNITIVE PROCESSES FOR ANIMAL WELFARE

    I. J.H. Duncan;J. C. Petherick

  • General Principles for the welfare of animals in production systems: The underlying science and its application

    David Fraser;Ian J.H. Duncan;Sandra A. Edwards;Temple Grandin

  • The effects of weaning at 7, 14 and 28 days on piglet behaviour

    E.K Worobec;I.J.H Duncan;T.M Widowski

  • Guidelines for the ethical use of animals in applied ethology studies

    Chris M Sherwin;Stine B Christiansen;Ian J Duncan;Hans W Erhard

  • Frustration and aggression in the domestic fowl.

    Unknown

  • Animal Rights – Animal Welfare: A Scientist’s Assessment

    Ian J. H. Duncan

  • Free and operant feeding in domestic fowls.

    I.J.H. Duncan;B.O. Hughes

  • Working for a dustbath: are hens increasing pleasure rather than reducing suffering?

    Tina M Widowski;Ian J.H Duncan

  • The pattern of food intake in female Brown Leghorn fowls as recorded in a Skinner box

    I.J.H. Duncan;A.R. Horne;B.O. Hughes;D.G.M. Wood-Gush

  • Impact of riding in a coercively obtained Rollkur posture on welfare and fear of performance horses

    Uta Ulrike von Borstel;Uta Ulrike von Borstel;Ian James Heatly Duncan;Anna Kate Shoveller;Katrina Merkies

  • Observations on the reproductive behaviour of domestic fowl in the wild

    Unknown

  • The performance of nest building by domestic hens: is it more important than the construction of a nest?

    B.O. Hughes;I.J.H. Duncan;Margretta F. Brown

  • The interpretation of preference tests in animal behaviour

    Ian J.H. Duncan

  • Behavior and behavioral needs

    I. J. H. Duncan

  • Investigating fear in domestic rainbow trout, Oncorhynchus mykiss, using an avoidance learning task

    S Yue;R.D Moccia;I.J.H Duncan

  • Measuring Preferences and the Strength of Preferences

    Ian J. H. Duncan

  • The Problem of Assessing “Well-Being” and “Suffering” in Farm Animals

    I. J. H. Duncan;M. S. Dawkins

  • Gordon memorial lecture. Poultry welfare: science or subjectivity?

    Ian J H Duncan

  • Male broiler breeder fowl display high levels of aggression toward females

    S. T. Millman;I. J. H. Duncan;T. M. Widowski

  • External factors and causation of dustbathing in domestic hens.

    Ian J.H Duncan;Tina M Widowski;Anne E Malleau;A.Cecilia Lindberg

  • Behaviour of young domestic fowl directed towards different substrates

    J. Carol Petherick;I. J. H. Duncan

  • The impact of applied ethologists and the International Society for Applied Ethology in improving animal welfare

    Suzanne T Millman;Ian J.H Duncan;Markus Stauffacher;Joseph M Stookey

  • The preferences of hens for compact fluorescent over incandescent lighting

    Tina M. Widowski;Linda J. Keeling;Ian J. H. Duncan

Frequent Co-Authors

Tina M. Widowski
Tina M. Widowski University of Guelph
Suzanne T. Millman
Suzanne T. Millman Iowa State University
Linda J. Keeling
Linda J. Keeling Swedish University of Agricultural Sciences
Derek B. Haley
Derek B. Haley University of Guelph
Georgia Mason
Georgia Mason University of Guelph
Joy A. Mench
Joy A. Mench University of California, Davis
David Fraser
David Fraser University of British Columbia
Jeffrey Rushen
Jeffrey Rushen University of British Columbia
Trevor J. DeVries
Trevor J. DeVries University of Guelph
A.M. de Passillé
A.M. de Passillé University of British Columbia

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