Uldis Stirna

591 total citations
27 papers, 463 citations indexed

About

Uldis Stirna is a scholar working on Polymers and Plastics, Mechanical Engineering and Biomaterials. According to data from OpenAlex, Uldis Stirna has authored 27 papers receiving a total of 463 indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Polymers and Plastics, 6 papers in Mechanical Engineering and 5 papers in Biomaterials. Recurrent topics in Uldis Stirna's work include Polymer composites and self-healing (20 papers), Synthesis and properties of polymers (6 papers) and biodegradable polymer synthesis and properties (5 papers). Uldis Stirna is often cited by papers focused on Polymer composites and self-healing (20 papers), Synthesis and properties of polymers (6 papers) and biodegradable polymer synthesis and properties (5 papers). Uldis Stirna collaborates with scholars based in Latvia, Lithuania and Spain. Uldis Stirna's co-authors include Uģis Cābulis, Anda Fridrihsone, Ričardas Makuška, M.J. López, J. Moreno, F. Suárez‐Estrella, María del Carmen Vargas-García, Miķelis Kirpļuks, Oskars Bikovens and J. Andersons and has published in prestigious journals such as European Polymer Journal, Progress in Organic Coatings and Journal of environmental polymer degradation.

In The Last Decade

Uldis Stirna

26 papers receiving 433 citations

Peers

Uldis Stirna

BIOMA

PCT

Pavan M. Paraskar India

Katarzyna Uram Poland

L. Rueda Spain

Pyus D. Tatiya India

Marco Aurilia Italy

R. E. Camargo United States

Sonal Desai India

Ashok B. Chaudhari India

Mercedes Santiago‐Calvo Spain

Xiang‐Cheng Bian China

Pavan M. Paraskar India

Uldis Stirna

322 ×0.8

120 ×0.8

BIOMA

94 ×0.8

92 ×1.2

PCT

80 ×1.1

Citations per year, relative to Uldis Stirna Uldis Stirna (= 1×) peers Pavan M. Paraskar

Countries citing papers authored by Uldis Stirna

Since Specialization

Citations

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

Fields of papers citing papers by Uldis Stirna

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Uldis Stirna. 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 Uldis Stirna. The network helps show where Uldis Stirna may publish in the future.

Co-authorship network of co-authors of Uldis Stirna

This figure shows the co-authorship network connecting the top 25 collaborators of Uldis Stirna. A scholar is included among the top collaborators of Uldis Stirna 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 Uldis Stirna. Uldis Stirna is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Fridrihsone, Anda, et al.. (2016). Spray-applied 100% volatile organic compounds free two component polyurethane coatings based on rapeseed oil polyols. Progress in Organic Coatings. 94. 90–97. 27 indexed citations

Stirna, Uldis, et al.. (2013). Properties of Polyurethanes Based on Tall Oil Fatty Acids Ester with Different Types of Flame Retardants. Key engineering materials. 559. 115–120. 3 indexed citations

Fridrihsone, Anda, et al.. (2013). Characterization of polyurethane networks structure and properties based on rapeseed oil derived polyol. European Polymer Journal. 49(6). 1204–1214. 59 indexed citations

Stirna, Uldis, et al.. (2013). Synthesis and Characterization of Novel Polyurethanes Based on Tall Oil. Materials Science. 19(4). 390–396. 14 indexed citations

Cābulis, Uģis, Miķelis Kirpļuks, Uldis Stirna, et al.. (2012). Rigid Polyurethane Foams Obtained from Tall Oil and Filled with Natural Fibers: Application as a Support for Immobilization of Lignin-Degrading Microorganisms. publication.editionName. 48. 500–515. 1 indexed citations

Stirna, Uldis, et al.. (2012). Structure and properties of the polyurethane and polyurethane foam synthesized from castor oil polyols. Journal of Cellular Plastics. 48(6). 476–488. 29 indexed citations

Stirna, Uldis, et al.. (2012). Biobased Polyurethanes from Rapeseed Oil Polyols: Structure, Mechanical and Thermal Properties. Journal of environmental polymer degradation. 21(4). 952–962. 52 indexed citations

Andersons, J., E. Spārniņš, Uģis Cābulis, & Uldis Stirna. (2012). Fracture Toughness of PIR Foams Produced from Renewable Resources. Key engineering materials. 525-526. 29–32. 5 indexed citations

Cābulis, Uģis, Miķelis Kirpļuks, Uldis Stirna, et al.. (2012). Rigid polyurethane foams obtained from tall oil and filled with natural fibers: Application as a support for immobilization of lignin-degrading microorganisms. Journal of Cellular Plastics. 48(6). 500–515. 21 indexed citations

10.

Stirna, Uldis, et al.. (2011). Mechanical properties of rigid polyurethane foams at room and cryogenic temperatures. Journal of Cellular Plastics. 47(4). 337–355. 55 indexed citations

11.

Makuška, Ričardas, et al.. (2011). Synthesis and physical-mechanical properties of polyurethane-polyisocyanurate foams based on PET-waste-derived modified polyols. Journal of Cellular Plastics. 47(5). 467–482. 30 indexed citations

12.

Stirna, Uldis, et al.. (2011). Properties of rigid polyurethane foams filled with milled carbon fibers. Mechanics of Composite Materials. 46(6). 679–688. 16 indexed citations

13.

Stirna, Uldis, et al.. (2008). Properties of Sprayed Polyurethane and Polyisocyanurate Foams Obtained from Vegetable Oil Polyols. 2 indexed citations

14.

Stirna, Uldis, et al.. (2007). Synthesis and properties of comb-shaped segmented poly(urethanes) based on 1,2-propanediol derivatives. Polymer Science Series B. 49(11-12). 261–266. 2 indexed citations

15.

Stirna, Uldis, et al.. (2006). Synthesis and properties of hydrophilic segmented poly(urethanes) based on poly(ethylene glycols) and glycerol monostearate. Polymer Science Series A. 48(3). 222–227. 1 indexed citations

16.

Stirna, Uldis, et al.. (2006). Synthesis and properties of cross-linked poly(ester urethanes) from poly(lactide) triols and poly(caprolactone) diols. Proceedings of the Estonian Academy of Sciences Chemistry. 55(2). 85–85. 1 indexed citations

17.

Stirna, Uldis, et al.. (2002). Physicomechanical Characteristics of Spray-On Rigid Polyurethane Foams at Normal and Low Temperatures. Mechanics of Composite Materials. 38(3). 273–280. 14 indexed citations

18.

Stirna, Uldis, et al.. (1999). Effect of flame retardants on the properties of monolithic and foamed polyurethanes at low temperatures. Mechanics of Composite Materials. 35(5). 447–450. 7 indexed citations

19.

Stirna, Uldis, et al.. (1999). Effect of the chemical structure of the polymer matrix on the properties of foam polyurethanes at low temperatures. Mechanics of Composite Materials. 35(4). 351–356. 13 indexed citations

20.

Stirna, Uldis, et al.. (1986). Possibility of describing process of formation of polyurethane foams by the use of foaming parameters. Mechanics of Composite Materials. 21(4). 494–498. 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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