Preface.- 1. Keynotes: 1. Arnaudov, K., Karaivanov, D. Alternative method for analysis of complex compound planetary gear trains - essence and possibilities.- 2. Bostan, I. Planetary precessional transmissions: synthesis and generation technologies.- 3. Ene, N., Dimofte, F. New tendencies in the design of modern aerospace transmissions.- 4. Hlebanja, J., Hlebanja, G. An overview of the development of gears.- 5. Hlebanja, J., Hlebanja, G. Recent development of non-involute cylindrical gears.- 6. Höhn, B-R. Future transmissions for wind turbines.- 7. Höhn, B-R., Stahl, K., Oster, P., Tobie, T., Schwienbacher, S., Koller, P. Grinding burn on gears - correlation between flank load-carrying capacity and material characteristics.- 8. Mihailidis, A., Nerantzis, I. Recent developments in automotive differential design.- 9. Miltenovic, V., Banic, M., Miltenovic, A. Load capacity of worm gears.- 10. Ognjanovic, M., Ristic, M. Gear system reliability-based design of gear drive units.- 11. Radzevich, P. S. On fundamentals of the scientific theory of gearing.- 12. Spitas, C. Spitas, V. Towards optimum involute gear design by combining addendum and thickness modifications.- 13. Spitas, C. Spitas, V., Rajabalinejad, M. Dynamical simulation and calculation of the load factor of spur gears with indexing errors and profile modifications for optimal gear design.- 2. Theory, Design and Experimental Researches on Power Transmissions: 14. Alipiev, O., Antonov, S., Grozeva, T. Regarding the effect of the rack-cutter fillet on the undercutting of gears.- 15. Barbaraci, G., Virzi' Mariotti, G. Influence of uncertainties on PD tuning.- 16. Bucur, B., Bolos, V. Comparative experimental study on noise and vibration level of gearbox with worm face-gear with reverse tapered pinion.- 17. Cananau, S., Dobre, G. CAD/CAE approach of the strain and stress static analysis for spur gear pairs.- 18. Climescu, O., Jaliu, C., Saulescu, R. On the efficiency of a planetary speed increaser usable in small hydros.- 19. Darbinyan, H. Surface and kinematical joint formation from standpoint of task based conceptual design method.- 20. Darbinyan, H. Task based conceptual design method for gear chamfering mechanisms.- 21. Dobreva, A. Theoretical investigation of the energy efficiency of planetary gear trains.- 22. Ene, N., Dimofte, F. The influence of the sleeve elastic deformations on the wave bearing performance in heavy loaded transmissions.- 23. Hlebanja, G, Hlebanja, J. Contribution to the development of cylindrical gears.- 24. Ivanov, K., Yaroslavceva, E. Transfer of motion by closed contour - basis of CVT.- 25. Kraynev, A., Salamandra, K., Raghavan, M. Synthesis of the two-stream transmissions.- 26. Laurian, T., Marian, V. G., Prisecaru, T. Experimental analysis of a kinetic energy recovery system intended for small and medium passenger cars.- 27. Mate, C. Z., Faluvegi, E., Cristea, L. Mathematical simulation in center of gravity position and effect of weight for a biped robot.- 28. Nenov, P. Trifonov, T., Velchev, D., Ronkova, V. Irregular speed of rotation in the Hooke's joint - visualization and study of its influence on the value of the forces into the pivot and on the strength of the forks.- 29. Nenov, P., Kaloyanov, B., Angelova, E. Geometrical blocking contours (GBC) as an instrument for high-technology design of geometry of involute external and internal gear drives.- 30. Ognjanovic, M. Ristic, M., Vasin, S. Bearings failure of gear drive unit caused by gear resonance.- 31. Radulescu, M. The transmission coefficient of hydrostatic drivers.- 32. Spitas, V. Spitas, C. Design of loboid gear pairs using involute discretization.- 33. Trajcevski, L., Geramitchioski, T. Cams-software program to design and synthesis of cams mechanisms.- 34. Vasie, M., Mundo, D., Andrei, L. New algorithm for variable speed gear generation process.- 3. Product Development, Manufacturing and Metrology: 35. Buiga, O., Haragas, S. Single-row