1. Z.Kostik, A.Nospal, V.Stojkovski "EXPERIMENTAL INVESTIGATION OF STRAW COMBUSTION IN FLUIDIZED BED", Proc. Fac. Mech.Eng. Skopje, Vol.12, No 13, pp. 37-44, 1993 2. V.Stojkovski, Z.Kostik, T.Bundalevski, A.Nospal "EXPERIMENTAL INSTALLATION FOR PARTICLES ELUTRIATION FROM FLUIDIZED BED INVESTIGATION", Proc. Fac. Mech.Eng. Skopje, Vol.12, No 13, pp. 97-104, 1993 3. V.Stojkovski, Z.Kostik "METHOD FOR DETERMINATION OF THE CURVE OF FLUIDIZATION IN THE ZONE FROM FIXED TO FLUIDIZED BED", Proc. Fac. Mech.Eng. Skopje, Vol.13, No 2, pp. 171-180, 1994 3. V.Stojkovski "ENTRAINMENT AND ELUTRIATION OF PARTICLES FROM FLUIDIZED BED", MSc Thesis, Faculty of Mechanical Engineering, Skopje, 1995 4. Z. Kostik, V.Stojkovski, T.Bundalevski, A.Nospal "MINIMUM FLUIDIZATION VELOCITY OF POLYDISPERSIVE MATERIALS - BINARY MIXTURE", Proc. Fac. Mech.Eng. Skopje, Vol.14, No 2, pp. 81-92, 1995 5. V.Stojkovski, Z.Kostik, A.Nospal, T.Bundalevski "PARAMETERS INFLUENCING FLUIDIZED BED PARTICLES ENTRAINMENT", Thermal Science,Journal, No.4, Vol.22, pp. 269-280, 1996 6. V.Stojkovski, Z.Kostik, A.Nospal, D.Bitrakovski "LIMITING PARAMETERS ON THE ELECTROMAGNETIC CONTROLED COMPONENTS IN PNEUMATIC ", PROCESING 97, pp. 316-318, 1997 7. V. Stojkovski, Z. Kostik, A. Nospal "DETERMINATION OF THE TERMINAL VELOCITY ON NOT-SPHERICAL PARTICLES", 10th Symposium of Yugoslav society of thermal engineers, YUTERM 97, 24-28.06.1997, Zlatibor, 8. V. Stojkovski, A. Mickovska, Z. Kostik , A. Nospal "DEPENDENCE OF THE BUBBLE DIAMETER ON APPARENT AND TOTAL NUMBER OF FLUIDISATION", 1st South East European Symposium of Fluidization, 24-27.09.1997, Vol.1, pp.41-52, Ohrid 9. V. Stojkovski, Z. Kostik , T. Bundalevski, A. Nospal "DILEMMA IN DETERMINATION THE MINIMUM FLUIDIZATION VELOCITY USING PUBLISHED EQUATION FOR POLYDISPERSIVE MATERIALS - BINARY MIXTURES", 1st South East European Symposium of Fluidization, 24-27.09.1997, Vol.1, pp.21-34, Ohrid 10. V. Stojkovski, Z. Kostik, A. Nospal "PARTICLES FLUX DISTRIBUTION IN THE FLUIDIZED BED FREEBOARD", 1st South East European Symposium of Fluidization, 24-27.09.1997, Vol.1, pp. 85-96, Ohrid 11. A. Mickovska, V. Stojkovski, Z. Kostik , A. Nospal "MATHEMATICAL MODEL OF THE DEPENDENCE OF THE PRE-ERUPTION BUBBLE DIAMETER ON TOTAL NUMBER OF FLUIDIZATION ON TWO DIMENSIONAL FLUIDIZED BED", 1st South East European Symposium of Fluidization, 24-27.09.1997, Vol.1, pp.53 - 62, Ohrid 12. Z. Kostik, V. Stojkovski, A. Nospal, A. Mickovska "DIFFERENCES BETWEEN THE VALUES OF MINIMUM FLUIDIZATION VELOCITIES IN 2-D AND 3-D FLUIDIZED BEDS", 1st South East European Symposium of Fluidization, 24-27.09.1997, Vol.1, pp.35 - 40, Ohrid 13. R. Filkovski, V. Stojkovski, I.Petrovski "HEAT TRANSFER IN THE FREEBOARD REGION OF A STATIONARY FLUIDIZED BED BOILER FURNACE", 13 Congrese CHISA'98, 23-28 August, Prague, R.Czech, 1998 14. V. Stojkovski, Z. Kostik, A. Nospal "A MATHEMATICAL MODEL OF PARTICLE ENTRAINMENT DISTRIBUTION ALONG THE FREEBOARD HEIGHT IN A BUBBLE FLUIDIZED BED", 13 Congress CHISA'98, 23-28 August, Prague, R.Czech, 1998 15. T. Bundalevski, Z. Kostik, A. Nospal, V. Stojkovski "EXPERIMENTAL DETERMINATION OF RESISTANT COEFFICIENT FOR STEEL PIPE WITH INNER EPOXIDE AND CEMENT COAT", 6-th Symposium of theoretical and apply mechanics, DMM, Struga, 1-3 October, Proceeding 1., 1998 16. M. Mircevski, T. Zlatanovski, V. Stojkovski "CALCULATION OF HOPEFULNESS IN GASEOUS PIPE SYSTEMS" 6-th Symposium of theoretical and apply mechanics, DMM, Struga, 1-3 October, Proceeding 2, pp.87-94, 1998 17. M. Mircevski, V. Stojkovski "FUNCTIONAL SYSTEM FOR CALCULATION OF STATIONARY REGIME IN GAS PIPE LINE" ZEMAK, Struga, pp..53-60, 1998 18. D.Bitrakovski, V.Stojkovski "ANALYSIS OF ENERGETIC PARAMETERS OF BUILDED HOT WATER PIPE NETWORK ADAPTABLE FOR COOLING SYSTEM", INTERKLIMA'99, Zagreb, Jun, 1999
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