Ralph Sims

4.5k total citations · 3 hit papers
25 papers, 2.9k citations indexed

About

Ralph Sims is a scholar working on Agronomy and Crop Science, Biomedical Engineering and Pollution. According to data from OpenAlex, Ralph Sims has authored 25 papers receiving a total of 2.9k indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Agronomy and Crop Science, 6 papers in Biomedical Engineering and 5 papers in Pollution. Recurrent topics in Ralph Sims's work include Bioenergy crop production and management (6 papers), Biofuel production and bioconversion (5 papers) and Energy and Environment Impacts (5 papers). Ralph Sims is often cited by papers focused on Bioenergy crop production and management (6 papers), Biofuel production and bioconversion (5 papers) and Energy and Environment Impacts (5 papers). Ralph Sims collaborates with scholars based in New Zealand, Austria and France. Ralph Sims's co-authors include J. N. Saddler, M. Scott Taylor, Warren Mabee, K. J. Gregory, Hans‐Holger Rogner, Pete Smith, Astley Hastings, Bernhard Schlamadinger, Gail Taylor and Alessandro Flammini and has published in prestigious journals such as Bioresource Technology, Global Change Biology and Energy Policy.

In The Last Decade

Ralph Sims

25 papers receiving 2.7k citations

Hit Papers

An overview of second gen... 2003 2026 2010 2018 2009 2003 2019 250 500 750
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. An overview of second generation biofuel technologies
    2009 996 citations Ralph Sims, Warren Mabee et al. Bioresource Technology profile →
  2. Carbon emission and mitigation cost comparisons between fossil fuel, nuclear and renewable energy resources for electricity generation
    2003 491 citations Ralph Sims, Hans‐Holger Rogner et al. Energy Policy profile →
  3. The Future Challenges of Food and Agriculture: An Integrated Analysis of Trends and Solutions
    2019 333 citations Özgül Calicioglu, Alessandro Flammini et al. Sustainability profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Ralph Sims 1.2k 505 449 397 375 25 2.9k
Douglas G. Tiffany 1.8k 1.5× 497 1.0× 402 0.9× 485 1.2× 562 1.5× 46 2.9k
Alexander E. Farrell 1.5k 1.2× 848 1.7× 686 1.5× 418 1.1× 496 1.3× 35 3.1k
Jean-François Dallemand 1.2k 1.0× 408 0.8× 631 1.4× 375 0.9× 199 0.5× 25 3.9k
Carlo Hamelinck 2.3k 1.8× 383 0.8× 564 1.3× 314 0.8× 588 1.6× 22 3.3k
Nicolae Scarlat 1.3k 1.0× 545 1.1× 844 1.9× 430 1.1× 198 0.5× 56 4.7k
Hao Cai 1.3k 1.1× 660 1.3× 577 1.3× 194 0.5× 416 1.1× 88 3.6k
Joaquim E. A. Seabra 1.5k 1.2× 411 0.8× 713 1.6× 157 0.4× 303 0.8× 52 2.6k
Yongzhong Feng 1.2k 1.0× 294 0.6× 411 0.9× 190 0.5× 336 0.9× 86 4.7k
Arnaldo Walter 1.0k 0.8× 293 0.6× 469 1.0× 144 0.4× 172 0.5× 66 2.0k
Kevin McDonnell 1.4k 1.1× 314 0.6× 364 0.8× 339 0.9× 363 1.0× 142 3.6k

Countries citing papers authored by Ralph Sims

Since Specialization
Citations

This map shows the geographic impact of Ralph Sims's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ralph Sims with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ralph Sims more than expected).

Fields of papers citing papers by Ralph Sims

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ralph Sims. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ralph Sims. The network helps show where Ralph Sims may publish in the future.

Co-authorship network of co-authors of Ralph Sims

This figure shows the co-authorship network connecting the top 25 collaborators of Ralph Sims. A scholar is included among the top collaborators of Ralph Sims based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ralph Sims. Ralph Sims is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Flammini, Alessandro, Xueyao Pan, Francesco N. Tubiello, et al.. (2022). Emissions of greenhouse gases from energy use in agriculture, forestry and fisheries: 1970–2019. Earth system science data. 14(2). 811–821. 39 indexed citations
2.
Flammini, Alessandro, Xueyao Pan, Francesco N. Tubiello, et al.. (2021). Emissions of greenhouse gases from energy use in agriculture, forestry and fisheries: 1970–2019. 6 indexed citations
3.
Calicioglu, Özgül, Alessandro Flammini, Stefania Bracco, Lorenzo Bellù, & Ralph Sims. (2019). The Future Challenges of Food and Agriculture: An Integrated Analysis of Trends and Solutions. Sustainability. 11(1). 222–222. 333 indexed citations breakdown →
4.
Sims, Ralph, Barry Barton, Paul Bennett, et al.. (2016). Transition to a low-carbon economy for New Zealand. Massey Research Online (Massey University). 9 indexed citations
5.
Sims, Ralph. (2015). Climate Change Solutions From Biomass, Bioenergy and Biomaterials. eCommons (Cornell University). 9 indexed citations
6.
Bringezu, Stefan, Helmut Schütz, Walter Pengue, et al.. (2014). Assessing global land use : balancing consumption with sustainable supply. Publication Server of the Wuppertal Institute (Wuppertal Institute). 97 indexed citations
7.
Sims, Ralph, et al.. (2012). Bioenergy in Australia: Status and opportunities. Murdoch Research Repository (Murdoch University). 31 indexed citations
8.
Fritsche, Uwe R., Ralph Sims, & Andrea Monti. (2010). Direct and indirect land‐use competition issues for energy crops and their sustainable production – an overview. Biofuels Bioproducts and Biorefining. 4(6). 692–704. 128 indexed citations
9.
Sims, Ralph, Warren Mabee, J. N. Saddler, & M. Scott Taylor. (2009). An overview of second generation biofuel technologies. Bioresource Technology. 101(6). 1570–1580. 996 indexed citations breakdown →
10.
Seyboth, Kristin, L.W.M. Beurskens, Ole Langniß, & Ralph Sims. (2008). Recognising the potential for renewable energy heating and cooling. Energy Policy. 36(7). 2460–2463. 65 indexed citations
11.
Sims, Ralph, Astley Hastings, Bernhard Schlamadinger, Gail Taylor, & Pete Smith. (2006). Energy crops: current status and future prospects. Global Change Biology. 12(11). 2054–2076. 364 indexed citations
12.
Sims, Ralph, Hans‐Holger Rogner, & K. J. Gregory. (2003). Carbon emission and mitigation cost comparisons between fossil fuel, nuclear and renewable energy resources for electricity generation. Energy Policy. 31(13). 1315–1326. 491 indexed citations breakdown →
13.
Sims, Ralph, et al.. (2001). Bioenergy opportunities for climate change mitigation.. Aspects of applied biology. 345–352. 2 indexed citations
14.
Sims, Ralph. (2001). Bioenergy — a renewable carbon sink. Renewable Energy. 22(1-3). 31–37. 19 indexed citations
15.
Sims, Ralph. (1996). A sustainable energy future for New Zealand. Renewable Energy. 9(1-4). 1049–1054. 4 indexed citations
16.
Sims, Ralph. (1996). New and Emerging Renewable Energy Opportunities in New Zealand. 4 indexed citations
17.
Sims, Ralph. (1994). Electricty generation from woody biomass fuels compared with other renewable energy options. Renewable Energy. 5(5-8). 852–856. 12 indexed citations
18.
Sims, Ralph, et al.. (1994). Herbicide Application Equipment use in New Zealand Pipfruit Orchards. Journal of Agricultural Engineering Research. 59(2). 121–131. 1 indexed citations
19.
Sims, Ralph. (1985). Tallow Esters as an Alternative Diesel Fuel. Transactions of the ASAE. 28(3). 716–721. 23 indexed citations
20.
Sims, Ralph. (1983). A comparison of harvesting techniques to maximise the yield of rapeseed oil - an alternative fuel.. 2 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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