D.P. Koullas

703 total citations
23 papers, 506 citations indexed

About

D.P. Koullas is a scholar working on Biomedical Engineering, Biomaterials and Nutrition and Dietetics. According to data from OpenAlex, D.P. Koullas has authored 23 papers receiving a total of 506 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Biomedical Engineering, 7 papers in Biomaterials and 5 papers in Nutrition and Dietetics. Recurrent topics in D.P. Koullas's work include Biofuel production and bioconversion (17 papers), Lignin and Wood Chemistry (10 papers) and Advanced Cellulose Research Studies (7 papers). D.P. Koullas is often cited by papers focused on Biofuel production and bioconversion (17 papers), Lignin and Wood Chemistry (10 papers) and Advanced Cellulose Research Studies (7 papers). D.P. Koullas collaborates with scholars based in Greece, France and Netherlands. D.P. Koullas's co-authors include Emmanuel G. Koukios, B. J. Macris, D. Kekos, Paul Christakopoulos, Diomi Mamma, Evaggeli Billa, E.G. Koukios, Bernard B. Monties, P.A.M. Claassen and Ιoannis Panagiotopoulos and has published in prestigious journals such as Bioresource Technology, Journal of Cleaner Production and Biotechnology and Bioengineering.

In The Last Decade

D.P. Koullas

23 papers receiving 476 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
D.P. Koullas Greece 13 439 216 89 58 53 23 506
M. Himmel China 9 484 1.1× 228 1.1× 99 1.1× 47 0.8× 23 0.4× 10 556
Kiyoharu FUKUDA Japan 9 355 0.8× 144 0.7× 132 1.5× 59 1.0× 51 1.0× 25 516
Richard Hendrickson United States 10 756 1.7× 398 1.8× 134 1.5× 47 0.8× 54 1.0× 14 853
Todd A. Lloyd United States 3 598 1.4× 290 1.3× 128 1.4× 32 0.6× 29 0.5× 3 628
Chinnadurai Karunanithy United States 15 631 1.4× 337 1.6× 115 1.3× 73 1.3× 47 0.9× 32 743
Enikő Varga Hungary 5 465 1.1× 297 1.4× 72 0.8× 40 0.7× 36 0.7× 10 497
Mahendra Moreshwar Gharpuray United States 6 407 0.9× 170 0.8× 133 1.5× 23 0.4× 55 1.0× 7 479
Menghui Yu China 9 318 0.7× 145 0.7× 93 1.0× 39 0.7× 49 0.9× 17 395
Young‐Lok Cha South Korea 15 399 0.9× 237 1.1× 56 0.6× 89 1.5× 32 0.6× 58 610
Chaogang Liu United States 6 680 1.5× 265 1.2× 163 1.8× 20 0.3× 45 0.8× 6 717

Countries citing papers authored by D.P. Koullas

Since Specialization
Citations

This map shows the geographic impact of D.P. Koullas'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 D.P. Koullas with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites D.P. Koullas more than expected).

Fields of papers citing papers by D.P. Koullas

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by D.P. Koullas. 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 D.P. Koullas. The network helps show where D.P. Koullas may publish in the future.

Co-authorship network of co-authors of D.P. Koullas

This figure shows the co-authorship network connecting the top 25 collaborators of D.P. Koullas. A scholar is included among the top collaborators of D.P. Koullas 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 D.P. Koullas. D.P. Koullas 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.
Panagiotopoulos, Ιoannis, et al.. (2015). Technical suitability mapping of feedstocks for biological hydrogen production. Journal of Cleaner Production. 102. 521–528. 23 indexed citations
2.
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Koullas, D.P., Emmanuel G. Koukios, R.J.A. Gosselink, et al.. (2006). Analytical methods for lignin characterization - Differential scanning calorimetry. Cellulose Chemistry and Technology. 40. 719–725. 6 indexed citations
5.
Vasile, Cornelia, et al.. (2006). Analytical methods for lignin characterization. I. Thermogravimetry. Cellulose Chemistry and Technology. 40(6). 421–429. 9 indexed citations
6.
7.
Koullas, D.P., et al.. (1999). Solvent Selection for the Extraction of Ethanol from Aqueous Solutions. Separation Science and Technology. 34(11). 2153–2163. 13 indexed citations
8.
Koullas, D.P., et al.. (1998). Modelling non-isothermal kinetics of biomass prepyrolysis at low pressure. Bioresource Technology. 63(3). 261–266. 12 indexed citations
9.
Billa, Evaggeli, et al.. (1998). Optimizing multisteps mechanical-chemical fractionation of wheat straw components. Industrial Crops and Products. 7(2-3). 249–256. 22 indexed citations
10.
Tarantili, P. A., D.P. Koullas, Paul Christakopoulos, et al.. (1996). Cross-synergism in enzymatic hydrolysis of lignocellulosics: Mathematical correlations according to a hyperbolic model. Biomass and Bioenergy. 10(4). 213–219. 14 indexed citations
11.
Mamma, Diomi, et al.. (1996). Bioethanol from sweet sorghum: Simultaneous saccharification and fermentation of carbohydrates by a mixed microbial culture. Process Biochemistry. 31(4). 377–381. 56 indexed citations
12.
Koullas, D.P., et al.. (1995). Biorefining of agricultural crops and residues: Effect of pilot-plant fractionation on properties of fibrous fractions. Biomass and Bioenergy. 8(6). 419–426. 19 indexed citations
13.
Billa, Evaggeli, et al.. (1995). Two-stage acid-catalyzed fractionation of lignocellulosic biomass in aqueous ethanol systems at low temperatures. Bioresource Technology. 54(3). 305–310. 53 indexed citations
14.
Koullas, D.P., et al.. (1993). Fractionation of lignocellulosic biomass components by prehydrolysis-organosolv delignification. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 2 indexed citations
15.
Koullas, D.P., Paul Christakopoulos, D. Kekos, B. J. Macris, & Emmanuel G. Koukios. (1992). Correlating the effect of pretreatment on the enzymatic hydrolysis of straw. Biotechnology and Bioengineering. 39(1). 113–116. 87 indexed citations
16.
Koullas, D.P., et al.. (1991). Direct ethanol conversion of pretreated straw by Fusarium oxysporum. Bioresource Technology. 35(3). 297–300. 23 indexed citations
17.
Koullas, D.P., E. Lois, & Emmanuel G. Koukios. (1991). Effect of physical pretreatments on the prepyrolytic behaviour of lignocellulosics. Biomass and Bioenergy. 1(4). 199–206. 9 indexed citations
18.
Christakopoulos, Paul, D.P. Koullas, D. Kekos, E.G. Koukios, & B. J. Macris. (1991). Direct conversion of straw to ethanol by Fusarium oxysporum: Effect of cellulose crystallinity. Enzyme and Microbial Technology. 13(3). 272–274. 27 indexed citations
19.
Koullas, D.P., Paul Christakopoulos, D. Kekos, B. J. Macris, & Emmanuel G. Koukios. (1990). Effect of cellulose crystallinity on the enzymic hydrolysis of lignocellulosics by Fusarium oxysporuym cellulases. Cellulose Chemistry and Technology. 24(4). 469–474. 9 indexed citations
20.
Koullas, D.P., Σ. Τσίμας, & Emmanuel G. Koukios. (1989). Pretreatment of lignocellulosic materials: the effect of ball milling on wheat straw physical properties. Cellulose Chemistry and Technology. 23(1). 53–61. 6 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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