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11.06.2019 No. 1 No. 2 No. 3 No. 4

Mathematics, Physics, Technical Sciences, Information Science

Volume 20, Number 2

April - June 2019




1. Elena-Cristina CANEPA, Traian A. PIRVU, A mathematical model and the optimal strategy in the transactions between one bank and the central bank 107
2. Zhou-Zheng KANG, Tie-Cheng XIA, Wen-Xiu MA, Abundant multiwave solutions to the (3+1)-dimensional Sharma-Tasso-Olver-like equation 115
3. Tudor BARBU, Segmentation-based non-texture image compression framework using anisotropic diffusion models 123


4. Darius PLONIS, Andrius KATKEVIČIUS, Vacius MALI©AUSKAS, Attenuation phenomena in gyroelectric waveguides with anisotropic dielectric layer 133
5. Virgil-Florin DUMA, Optical attenuators with Risley prisms and disk choppers 141
6. Vladimir SERGENTU, Veaceslav URSAKI, Anatolii IOISHER, Eliezer ADAR, Solar energy concentrators in geostationary orbits 151

Technical Sciences

7. Ovidiu BUIGA, 3 stage helical speed reducer partial gear ratios optimal determination using genetic algorithms 159
8. Sathish KUMAR SHANMUGAM, Karthikeyan MUTHUSAMY, Vijayachitra CHENNIPPAN, Suresh BALASUBRAMANIAM, Sampathkumar RAMASAMY, Saravanan SUBRAMANIAN, Modelling of solar photovoltaic array fed brushless DC motor drive using enhanced DC-DC converter 169
9. Corina BIRLEANU, Marius PUSTAN, Violeta Valentina MERIE, Horea George CRIȘAN, Effect of film thickness on the tribo-mechanical properties of chrome-gold thin films 179


10. Andrej ZGANK, Cross-lingual speech recognition between languages from the same language family 189
11. Iulian B. CIOCOIU, Invariant pattern recognition using support vector data description and tangent distance 197
12. Lucian N. VINȚAN, Neural branch prediction: from the first ideas, to implementations in advanced microprocessors and medical applications 205



Proc. Ro. Acad., Series A, Volume 20, No. 2, pp. 105-212, Bucharest, 2019



copyright © Academia Romānă 2006

copyright © Academia Romānă 2006