Aerated concrete microwave reflection and transmission properties in a wet environmentKoppel, Tarmo; Vilcane, Inese; Mironovs, Viktors; Shishkin, Andrei; Rubene, Sanita; Tint, PiiaVide. Tehnologija. Resursi : XI starptautiskas zinatniski praktiskas konferences materiali 2017. gada 15.-17. junijs. 3. sejums = Environment. Technology. Resources : proceedings of the 11th International Scientific and Practical Conference. Volume III2017 / p. 145-149 : ill https://doi.org/10.17770/etr2017vol3.2619

Development of critical thinking and reflectionRüütmann, TiiaThe Challenges of the Digital Transformation in Education : proceedings of the 21st International Conference on Interactive Collaborative Learning (ICL2018) - Volume 22019 / p. 895-906 https://doi.org/10.1007/978-3-030-11935-5_85 Conference proceedings at Scopus Article at Scopus Article at WOS

Experimental study of noise barrier boards with increased acoustic performance by utilizing Helmholtz resonator effectsLavrentjev, Jüri; Rämmal, HansMaterials today: proceedings2020 / p. 2566-2571 https://doi.org/10.1016/j.matpr.2020.05.402 Conference proceedings at Scopus Article at Scopus Article at WOS

Microwave reflectance and transmittance properties of conductive composite materialsShishkin, Andrei; Koppel, Tarmo; Mironov, Viktor; Hussainova, Irina; Locs, Janis; Haldre, HeldurEnergy procedia2017 / p. 354-361 : ill https://doi.org/10.1016/j.egypro.2017.04.006

Microwave reflection and absorption properties of wet snowKoppel, Tarmo; Haldre, Heldur; Shishkin, AndreiRiga Technical University 57th International Scientific Conference : "Scientific Conference on Economics and Entrepreneurship" (SCEE'2016) : proceedings2016 / p. 170-171 : ill

Microwave reflection properties of building materials in the working environmentKoppel, Tarmo; Haldre, Heldur56th International Riga Technical University Conference "Scientific Conference on Economics and Entrepreneurship SCEE'2015" : proceedings2015 / p. 148-150 : tab

Nonlinear propagation and reflection of ultrasound - combining the numerical and analytical approachBraunbrück, Andres; Ravasoo, Arvi28th Nordic Seminar on Computational Mechanics, 22-23 October, Tallinn, 2015 : proceedings of the NSCM282015 / p. 39-42 : ill

Reflection and transmission properties of common construction materials at 2.4 GHz frequencyKoppel, Tarmo; Shishkin, Andrei; Haldre, Heldur; Toropovs, Nikolajs; Vilcane, Inese; Tint, PiiaEnergy procedia2017 / p. 158-165 https://doi.org/10.1016/j.egypro.2017.04.045

Reflection, rewinding, and coin-toss in EasyCryptFirsov, Denis; Unruh, DominiqueCPP 2022 - Proceedings of the 11th ACM SIGPLAN International Conference on Certified Programs and Proofs, co-located with POPL 20222022 / p. 166-179 https://doi.org/10.1145/3497775.3503693

Salt water sprayed paper microwave attenuation in shielding workplacesKoppel, Tarmo; Shishkin, Andrei; Haldre, HeldurRiga Technical University 57th International Scientific Conference : "Scientific Conference on Economics and Entrepreneurship" (SCEE'2016) : proceedings2016 / p. 172-173 : ill

Snow microwave reflection at mobile phone frequency bandsKoppel, Tarmo; Vilcane, Inese; Tint, Piia; Shishkin, AndreiVide. Tehnologija. Resursi : XI starptautiskas zinatniski praktiskas konferences materiali 2017. gada 15.-17. junijs. 1. sejums = Environment. Technology. Resources : proceedings of the 11th International Scientific and Practical Conference, June 15-17, 2017. Volume I2017 / p. 156-160 : ill http://dx.doi.org/%2010.17770/etr2017vol1.2608