Elektrotechnický ústav SAV, v.v.i.

2003

Jelinek, Z., Timoransky, Z., Zizek, F., Piel, H., Polak, M., Chovanec, F., Mozola, P., Janšák, L., Kvitkovič, J. and Ušák, P.: Test results of 14 kVA superconducting transformer with Bi-2223/Ag windings, IEEE Trans. on Applied Supercond. 13 (2003) 2310.

2002

Chovanec, F. and Ušák, P.: Instabilities above critical current region in Bi-2223/Ag superconducting coils cooled by liquid nitrogen, Cryogenics 42 (2002) 543-546.

Žižek, F., Jelinek, Z., Timoranský, Z., Piel, H., Chovanec, F., Mozola, P., and Polák, M.: End-winding region configuration of an HTS transformer, IEEE Trans. on Applied Supercond. 12 (2002) 904-906.

Chovanec, F., Jahn, P., Janšák, L., Jelinek, J., Kvitkovič, J., Mozola, P., Piel, H., Polák, M., Timoranský, Z., Ušák, P., and Žižek, F.: 15kVA superconducting transformer. In: 7^th Int. Conf. Cryogenics 2002. Praha 2002. P. 46-48.

2000

Mozola, P., Chovanec, F., Jahn, P., and Polák, M.: Losses in superconducting coil carrying 50 Hz current-comparison of electrical and calometric measurements. In: Cryogenics 2000. Ed.: V.Chrz. Prague, ICARIS 2000. P. 56-59.

1999

Pitel, J. and Chovanec, F.: Superconducting open-gradient magnetic separator utilizing the braking effect of an axial component of magnetic force, IEEE Trans. on Applied Supercond. 9 (1999) 382-384.

1998

Chovanec, F., Polák, M., and Mozola, P.: Quenching of BSCCO coils cooled by Gifford McMahon refrigerator. In: Proc. 5^thInt. Conf. Cryogenics 98. Prague 1998. P. 86.

Ušák, P., Janšák, L., and Chovanec, F.: Local nature of transport properties of Ag-sheathed BSCCO (Bi-2223) superconducting tapes. In: Proc. 5^th Int. Conf. Cryogenics 98, Prague 1998. P. 108.

1997

Ušák, P., Chovanec,F.: Measurement of current density distribution in high T_c Ag-sheathed superconducting tapes. In: Applied Superconductivity Conf. Pittsburgh 1996, IEEE Trans.Appl. Supercond. 7 (1997) 1343.

1996

Ušák, P., and Chovanec, F.: The dynamics of current density distribution in Ag-sheathed TBCCO tape in changing gradient field. In: 14^th Int. Conf. on Magnet Technology, Tampere (Finland) 1995, IEEE Trans. on Magn. 32 4 Part 1 (1996) 2818-2821.

Hlásnik, I., Janšák, L., Majoroš, M., Kokavec, J., Chovanec, F., Martini, L., and Zanella, S.: Self-field effect on Ag/HTS tapes – skin effect at resistivity strongly increasing with J versus critical state model. In: MT14 Tampere 1995, IEEE Trans. on Magnet. 32 (1996) 2806.

Janšák, L., Chovanec, F., Kokavec, J., and Jergel, M.: Critical current anisotropy and AC losses in Bi(Pb)SrCaCuO-2223 and TlBaCaCuO-2212 Ag sheathed superconducting tapes. In: Magnet Technology 14. Tampere 1995, IEEE Trans. on Magnet. 32 (1996) 2788.

Ušák, P. and Chovanec, F.: Influence of gradient magnetic field on current redistribution in Ag-sheathed TBCCO tape. In: Cryogenics 96. Proc. of the 4^th Inter. Conf. Praha, 1996. P. 97-100.

Chovanec, F., Ušák, P., and Kokavec, J.: Electromagnetic properties of Tl-Ba-Ca-Cu-O (Tl-2212) superconducting tapes and films. In: Cryogenics 96. Proc. of the 4^th Inter. Conf. Praha, 1996. P. 24-27.

1995

Chovanec, F ., Janšák, L., Kottman, P., Majoroš, M., Ušák, P., Suchoň, D., and Jergel, M.: Critical current a nisotropy of Ag-sheathed 2212 TlBaCaCuO superconducting tapes, IOP Conf. Ser. 148 (1995) 475.

1994

Chovanec, F., Ušák, P., Kokavec, J., Sidorov, M.: Quench behaviour of adiabatic NbTi superconducting winding under controlled stress, Cryogenics 34 (1994) S521.

Kokavec, J., Ušák, P., Krempaský, L., Chovanec, F.: Precise determination of superconducting magnet axis, Cryogenics 34 (1994) S681.

Ušák, P., Chovanec, F., and Kokavec, J.: Measurement by resistive strain gauges in strong magnetic fields at liquid helium temperature, J. of the Japan Society of Appl. Electromagnetics Suppl. to 3 (1994) 265.

Chovanec, F. and Ušák, P.: Improvement of the superconducting magnetic system stability. In: Kryogenika 94. Ústí n. Labem 1994. P. 118.

Ušák, P. and Chovanec, F.: Application limits for low and high T_c superconductors from stand point of mechanical stability. In: Proc. of the Japan-Central Europe Joint Workshop on Advanced Computing in Engineering. Ed. M.Akiyama. Varšava 1994. P. 317-323.

1993

Ušák, P., Kokavec, J., Chovanec, F., Krempaský, L., and Gregor, B.: Safety and protection of 8T NbTi gyrotron magnet in persistent mode, IEEE Trans. on Magnetics 29 (1993) 2238.

1992

Chovanec, F., Ušák, P., Kokavec, J., and Krempaský, L.: Influence of constraction concepts on training behaviour of gyrotron magnets, Cryogenics 32 (1992) 394.

Ušák, P., Chovanec, F ., Hanečka, B., Kokavec, J., and Krempaský, L.: The designe of stable race track superconducting switch, Cryogenics 32 (1992) 466.

Pitel, J., Chovanec, F., and Hencl, V.: Superconducting magnet system application at dry magnetic separation of coal, Magnetic and Electrical Separation 4 (1992) 19.

Ušák, p., Kokavec, J., Chovanec, F., Krempaský, L., and Gregor, B.: Experience with operational and quench behaviour of large 8T gyrotron magnet. In: Cryogenics 92. Brno, ČS VTS 1992. P. 141.

1991

Chovanec, F., Kokavec, J., Krempaský, L., Ušák, P., Gregor, B., and Pitel, J.: Gyrotron superconducting magnet systems for ITER program. In: Proc. 2^ndCzechosl.-Italian Symposium on Superconductivity. Bratislava, Veda 1991. P. 154.

Ušák, P., Kokavec, J., Chovanec, F., Krempaský, L., and Gregor, B.: The gyrotron magnets overheating and dynamics of heat input into helium base after the quench. In: Proc. 2^ndCzechosl.-Italian Symposium on Superconductivity. Bratislava, Veda 1991. P. 160.

Vdovčenko, V.S., Kozlova, S.G., Kostin, A.A., Rabner, J.P., Samsonov, V.G., Kuchto, V.A., Hlásnik, I., Pitel, J. a Chovanec, F .: Opyt demineralizaciji energetičeskich uglej v sverchprovodnikovom magnite, Teploenergetika 3 (1991) 37.

1990

Pitel, J., Chovanec, F ., and Hencľ, V.: Pos sibility of the superconducting magnet system application at dry magnetic separation of coal, Cryogenics (Suppl.) 30 (1990) 753.

1988

Polák, M., Hanic, F., Hlásnik, I., Majoroš, M., Chovanec, F., Horváth, I., Krempaský, L., Kottman, P., Kedrová, M., and Gáliková, L.: Critical current density magnetization and AC losses in the YBa₂Cu₃O_6+xsuperconductor, Physica C 156 (1988) 79.

Rassi, D. and Chovanec, F.: Coexistence of magnetism and superconductivity in YBa₂Cu₃O_xcompounds. In: Proc. 1^st Int. Discussion Meeting on High T_c Superconductor. Mantersdorf, 1988, F12.

Chovanec, F., Pitel, J., Hencl, V., Kostin, A.A., Kozlova, S.G., Kratickij, V.N., Rabiner, S.P., a Baskirov, Y.A.: Coal cleaning by superconducting open-gradient magnetic separator. In: Proc. ICEC 12. Ed. R.G. Scurlock. Guildford, Butterworth Publ. 1988. P. 329.

1986

Hencl, V., Hlásnik, I., Chovanec, F., and Pitel, J.: Magnetic separation of Brown coals from north Bohemian coal basin for thermal power plants. In: Cryopraque 86. Praha, Inst. Inter. du Froid 1986. P. 33.

Chovanec, F., Kokavec, J., Krempaský, L., Janšák, L., a Ušák, P.: Sverchprovodjaščije magnitnyje sistemy dlja SVC kompelksa nagreva plazmy v ustanovke Tokamak T-15. In: Trudy 1. meždunar. symposiuma po fiziko-techničeskim problemam ispoľzovanija sverchprovodimosti v energetike. Bratislava, EÚ C EFV SAV 1986. P. 75.

Hencl, V., Chovanec, F ., Hlásnik, I., a Pitel, J.: Magnitnaja separacija burogo energetičeskogo ugľa iz severečeskogo ugoľnogo basejna s pomoščju objemno-gratientnogo sverchprovodjaščego separatora. In: Trudy 1. meždunar. symposiuma po fiziko-techničeskim problemam ispoľzovanija sverchprovodimosti v energetike. Bratislava, EÚ CEFV SAV 1986. P. 88.

1984

Chovanec, F.: The removing of sulphur and ash from lignite coal by superconducting open-gradient separator. In: Proc. 10^th ICEC Butherworthe 1984. P. 813.

1981

Chovanec, F., Drobin, V.M., Dyachkov, E.I., Janšák, L., Khutchareva, I.S., Kulikov, J.V., Lupov, V.G., Malynk, V.A., and Smirnov, A.A.: Losses in superconducting cables in pulsed magnetic field, Cryogenics 21 (1981) 359.NOT IEE SAS

1980

Janšák, L. and Chovanec, F.: An analogue digital double intefration joulmeter for ac measurements in superconducting magnets, Cryogenics 20 (1980) 125.

Drobin, V.M., Djačkov, E.I., Kulikov, J.V., Kurjatnikov, E.K., Luppov, V.G., Maľuk, V.A., Smirnov, A.A., Chovanec, F., Chuchareva, I.S. a Janšák, L.: Poteri v sve rchprovoďaščch kkabeľach v impuľsnych magnitnych poľach. Preprint SUJV P8-80-575. Dubna, 1980.

1979

Krempaský, L., Polák, M., Chovanec, F., and Štofanik, F.: Sov. J. Techn. Phys. 49 (1979) 623.

Choang Kao Zung, Chovanec, F. a Janšák, L.: Sistema na linii s EVM TRA-70 v standarde KAMAK dľa izmerenija dinamičeskich poter v sverchprovoďaščich magnitach i kabeľjach. Preprint SUJV 10-12316. Dubna, 1979.

Choang Kao Zung, Chovanec, F. a Janšák, L.: Mikroprocessornaja avtonomnaja sistema v standarde KAM AK dľa izmerenija poter energii v sverchoprovoďaščich kabeľjach i impuľsnych magnitach. Preprint SUJV 10-12317. Dubna, 1979.

Janšák, L. a Chovanec, F .: Analogovo-cifrovoj džouľmetr s dvojnoj integracijej dľa izmerenija poter na peremennom toke v sverchprovoďaščich magnitach. Preprint SUJV P13-12501. Dubna, 1979.

1978

Janšák, L., Štofanik, F. a Chovanec, F. : Programmator dľa upravlenija istočnikami toka. Preprint SUJV 13-11676. Dubna, 1978.

Chovanec, F ., Djačkov, E.I., Nikitajev, P.I., Chodžibagijan, G.G. a Janšák, L.: Vlijanije orientacii transponirovannovo sverchprovoďaščevo kabeľa v obmotke na poteri energii v impuľsnych solenoidach. Preprint SUJV P8-11145. Dubna, 1978.

1970

Chovanec, F., Goncharov, I.N., and Su, H.Z.: An investigation of heat transfer from thin cylinders to liquid helium, Cryogenics 10 (1970) 316.

1966

Hlásnik, I., Polák, M., and Chovanec, F.: Measurement of the magnetic field at low by Hall generators, Cryogenics 6 (1966) 89.

1965

Hlásnik, I., Chovanec, F., Kružliak, J., Litomiský, M., Polák, M., Ružička, J., and Čabelka, D.: Einige Bemerkungen zur Technologie und zu Eigenschaften von Nb₃Sn , Monatsberichte DAW 10/11 (1965) 800.

Hlásnik, I., Chovanec, F., and Polák, M.: Messung magnetischer Felder bei tiefen Temperature mit Hilfe von Hall-Generator , Monatsberichte DAW 10/11 (1965) 804.

Ing. František CHOVANEC, CSc.