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D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Engineering and Technology 58 2525 772 210 11251

W. H. Ray publications per year

The chart shows the history of publications by W. H. Ray between 1951 and 2006, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. W. H. Ray published across 56 years, from 1951 to 2006, averaging 4 papers a year. Output peaked at 12 publications in 1997. 6 of the 226 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1951 to 2006. Vertical axis: number of publications, 0 to 12. Peak 12 publications in 1997. 1951: 1 publication 1952: 0 publications 1953: 0 publications 1954: 0 publications 1955: 0 publications 1956: 0 publications 1957: 0 publications 1958: 0 publications 1959: 0 publications 1960: 0 publications 1961: 0 publications 1962: 0 publications 1963: 0 publications 1964: 1 publication 1965: 1 publication 1966: 2 publications 1967: 2 publications 1968: 1 publication 1969: 5 publications 1970: 4 publications 1971: 9 publications 1972: 9 publications 1973: 8 publications 1974: 6 publications 1975: 5 publications 1976: 6 publications 1977: 6 publications 1978: 4 publications 1979: 7 publications 1980: 7 publications 1981: 4 publications 1982: 4 publications 1983: 4 publications 1984: 2 publications 1985: 7 publications 1986: 10 publications 1987: 9 publications 1988: 4 publications 1989: 6 publications 1990: 2 publications 1991: 7 publications 1992: 9 publications 1993: 11 publications 1994: 6 publications 1995: 5 publications 1996: 5 publications 1997: 12 publications 1998: 10 publications 1999: 2 publications 2000: 3 publications 2001: 8 publications 2002: 4 publications 2003: 0 publications 2004: 2 publications 2005: 4 publications 2006: 2 publications
1951 2006

226 publications in total across all disciplines

View publications per year as a table
W. H. Ray: publications per year, 1951 to 2006
Year Publications
1951 1
1952 0
1953 0
1954 0
1955 0
1956 0
1957 0
1958 0
1959 0
1960 0
1961 0
1962 0
1963 0
1964 1
1965 1
1966 2
1967 2
1968 1
1969 5
1970 4
1971 9
1972 9
1973 8
1974 6
1975 5
1976 6
1977 6
1978 4
1979 7
1980 7
1981 4
1982 4
1983 4
1984 2
1985 7
1986 10
1987 9
1988 4
1989 6
1990 2
1991 7
1992 9
1993 11
1994 6
1995 5
1996 5
1997 12
1998 10
1999 2
2000 3
2001 8
2002 4
2003 0
2004 2
2005 4
2006 2
Total 226
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W. H. Ray publications per year - data summary

  • W. H. Ray, a Engineering and Technology scholar from University of Wisconsin–Madison, has 226 publications recorded across 56 years, from 1951 to 2006.
  • The oldest publication on record dates to 1951 and the most recent to 2006.
  • The most productive year is 1997, with 12 publications.
  • The least productive years with any output are 1951, 1964, 1965 and 1968, with 1 publication each.
  • 13 of the 56 years in the span carry no publications at all (1952, 1953, 1954, 1955 and others).
  • The rate of publication averages 4.0 papers per year over the whole span, or 5.3 per year counting only the 43 years with at least one publication.
  • The last 5 years on the chart (2002-2006) hold 12 publications, 5% of the career total.
  • Split into equal eras - 1951-1969: 13 publications (0.7 per year); 1970-1988: 115 publications (6.1 per year); 1989-2006: 98 publications (5.4 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

W. H. Ray 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 W. H. Ray 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, 208–217 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: 210 publications — 52nd percentile

52% 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
208–217 317 210
218–227 346
228–237 321
238–247 260
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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W. H. Ray 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.
  • W. H. Ray, a Engineering and Technology scholar from University of Wisconsin–Madison, records 210 publications - the 52nd percentile of the discipline.
  • 52% of ranked Engineering and Technology scientists score the same or lower than W. H. Ray, and about 48% score higher.
  • The median of the discipline falls in the 198–207 publications range, and W. H. Ray 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).

W. H. Ray 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 W. H. Ray 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, 58 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: 58 D-Index — 75th percentile

75% 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 58
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
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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W. H. Ray 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.
  • W. H. Ray, a Engineering and Technology scholar from University of Wisconsin–Madison, records 58 D-Index - the 75th percentile of the discipline.
  • 75% of ranked Engineering and Technology scientists score the same or lower than W. H. Ray, and about 25% score higher.
  • The median of the discipline falls in the 47 D-Index range, and W. H. Ray 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).

Research.com Recognitions

  • 2000 - Richard E. Bellman Control Heritage Award
  • 1991 - Member of the National Academy of Engineering For leadership in research and education in polymer reaction engineering, chemical reaction dynamics, process optimization, and automatic and control in industrial applications of significant importance.
  • 1973 - Fellow of John Simon Guggenheim Memorial Foundation

Overview

W. H. Ray is affiliated with the University of Wisconsin-Madison in the United States. Their research primarily spans the fields of Arts and Humanities, with a focus on Literature and Literary Theory as well as History. The scientist's work engages extensively with topics related to American Literature and Culture, American and British Literature Analysis, and Ecocriticism and Environmental Literature.

Ray has published at least one recent paper titled Steinbeck Today in 2021, which appeared in the Steinbeck Review. This publication reflects an ongoing engagement with literary analysis and cultural studies. The Steinbeck Review is also noted as a frequent venue for their scholarly contributions.

  • Steinbeck Today (2021, Steinbeck Review)

The scientist's research topics can be detailed as follows:

  • American Literature and Culture
  • American and British Literature Analysis
  • Ecocriticism and Environmental Literature

In terms of academic disciplines, the main fields and subfields of their work include:

  • Arts and Humanities
  • Literature and Literary Theory
  • History

W. H. Ray has not been listed with frequent co-authors, indicating a potentially solitary or independently-driven research style. The limited but focused publications suggest concentration on specific thematic areas rather than broad collaboration networks.

Recognition of their professional standing includes several awards and honors. These include the Richard E. Bellman Control Heritage Award received in 2000, membership in the National Academy of Engineering since 1991, which acknowledged leadership in research and education in polymer reaction engineering and related areas, as well as a fellowship from the John Simon Guggenheim Memorial Foundation awarded in 1973.

  • Richard E. Bellman Control Heritage Award (2000)
  • Member of the National Academy of Engineering (1991) for leadership in research and education in polymer reaction engineering, chemical reaction dynamics, process optimization, and automatic and control in industrial applications of significance
  • Fellow of John Simon Guggenheim Memorial Foundation (1973)

While some awards reflect achievements in engineering fields, Ray's publication record and academic interests remain primarily within literary and humanities disciplines. The interplay between technical recognition and humanities focus could imply a multidisciplinary expertise or a career with diverse phases.

Best Publications

  • On the dynamic behavior of continuous stirred tank reactors

    A. Uppal;W.H. Ray;A.B. Poore

  • The classification of the dynamic behavior of continuous stirred tank reactors—influence of reactor residence time

    A. Uppal;W.H. Ray;A.B. Poore

  • Polymerization of olefins through heterogeneous catalysis. III. Polymer particle modelling with an analysis of intraparticle heat and mass transfer effects

    S. Floyd;Kyu Y. Choi;T.W. Taylor;W.H. Ray

  • Polymerization of olefins through heterogeneous catalysis X: Modeling of particle growth and morphology

    R. A. Hutchinson;C. M. Chen;W. H. Ray

  • Multivariable controller design for linear systems having multiple time delays

    B. A. Ogunnaike;W. H. Ray

  • On the Mathematical Modeling of Polymerization Reactors

    Unknown

  • Polymerization of olefins through heterogeneous catalysis. VI. Effect of particle heat and mass transfer on polymerization behavior and polymer properties

    S. Floyd;Tomi Heiskanen;T. W. Taylor;G. E. Mann

  • THE DYNAMIC BEHAVIOUR OF FLUIDIZED BED REACTORS FOR SOLID CATALYZED GAS PHASE OLEFIN POLYMERIZATION

    Unknown

  • Interpretation of photon correlation spectroscopy data: A comparison of analysis methods

    R. S. Stock;W. H. Ray

  • High-Performance multivariable control strategies for systems having time delays

    N. F. Jerome;W. H. Ray

  • Polymerization of olefines through heterogeneous catalysis IV. Modeling of heat and mass transfer resistance in the polymer particle boundary layer

    S. Floyd;Kyu Y. Choi;T.W. Taylor;W.H. Ray

  • Reactor residence time distribution effects on the multistage polymerization of olefins—I. Basic principles and illustrative examples, polypropylene

    Jorge J. Zacca;Jon A. Debling;W.H. Ray

  • Approximation methods for optimal control synthesis

    Unknown

  • Dynamic PLS modelling for process control

    Unknown

  • The dynamic behavior of continuous polymerization reactors—II Nonisothermal solution homopolymerization and copolymerization in a CSTR

    J.W. Hamer;T.A. Akramov;W.H. Ray

  • Advanced multivariable control of a pilot-plant distillation column

    B. A. Ogunnaike;J. P. Lemaire;M. Morari;W. H. Ray

  • Some recent applications of distributed parameter systems theory-A survey

    W. H. Ray

  • Polymerization of olefins through heterogeneous catalysis. VIII. Monomer sorption effects

    R. A. Hutchinson;W. H. Ray

  • Feedforward and feedback control of a solution copolymerization reactor

    Unknown

  • The modeling of hematite reduction with hydrogen plus carbon monoxide mixtures: Part I. The behavior of single pellets

    Q. T. Tsay;W. H. Ray;Julian Szekely

  • Dynamic modeling of product grade transitions for olefin polymerization processes

    J. A. Debling;G. C. Han;F. Kuijpers;J. Verburg

  • On the dynamic behaviour of a class of homogeneous continuous stirred tank polymerization reactors

    R. Jaisinghani;W.H. Ray

  • On the Mathematical Modeling of Emulsion Polymerization Reactors

    Unknown

  • An analytical solution to Tung's axial dispersion equation

    A. E. Hamielec;W. H. Ray

  • The dynamic behaviour of continuous polymerization reactors—III: An experimental study of multiple steady states in solution polymerization

    A.D. Schmidt;A.B. Clinch;W.H. Ray

  • The modeling of batch and continuous emulsion polymerization reactors. Part I: Model formulation and sensitivity to parameters

    J. B. Rawlings;W. H. Ray

Frequent Co-Authors

Robin A. Hutchinson
Robin A. Hutchinson Queen's University
James B. Rawlings
James B. Rawlings University of California, Santa Barbara
José Carlos Pinto
José Carlos Pinto Federal University of Rio de Janeiro
John H. Seinfeld
John H. Seinfeld California Institute of Technology
Babatunde A. Ogunnaike
Babatunde A. Ogunnaike University of Delaware
Manfred Morari
Manfred Morari University of Pennsylvania
Daniel E. Rivera
Daniel E. Rivera Arizona State University
Archie E. Hamielec
Archie E. Hamielec McMaster University
James W. Evans
James W. Evans Iowa State University

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