BULGARIAN JOURNAL OF PHYSICS (Bulg. J. Phys.)
volume 27 2000 number 3
Proceedings of Fourth General Conference of the Balkan Physical
Union (BPU-4), 22 - 25 August 2000, Veliko Turnovo, Bulgaria
Contents
L. Chioncel, E. Burzo, S. G. Chiuzbaian. Induced Transjtlon Metal Moments in
Rare-earth Compounds
M. A. Gi~u. Magnetic Ordering in a Famlly of3-dimensl017al Hybrid Organicl
Inorganic Magnets
1
f
13
1. Kara, A. Guhg6r, N. As. Polaiizatlon and Polalization Controling In Optical Fibers 17
S. Cartaleva, G. Alzetta, Y. ~)ancheva, Ch. Andreeva, R. M. Celli.
Coherent Effects in Optical Pumping ofAtoms
E. Benova, T. Petrova. Sulface-wave Sustained Discharges - Self-conslstent Modelling 25
S. Mijovic, M. Vuceljic. Information from the Shapes ofSpectra] Llnes
L. D. Biborosch, U. Ernst, M. Toma, K. Frank. The Self-sustainlng ofNonllnear
Oscillations In Mlcrohollo w Ca thode Dlschalges
S. Teodoru, G. Popa. Plan Probe Characteristlc in the Presence ofSecondary
Electron Emlsslon
J. P. Karamarkovi6, G. S. Risti6, M. M. Pejovi6. The Analysls ofBreakdown
Probability uslng Tlme Delay Metbod
G. S. Djordjevi6, B. Dragovich, Lj. Ne~i6. Quantum Mechanlcs and Quantum
Cosmology at the Planck Scale
D. Dimitrijevi6, G. S. Djordjevi6, B. Dragovich. On Schl~dlngel~-type Equatlon
on p-adic Spaces
A. Matos-Abiague. Free Partlcle In Fractional-dimensional Space
S. Yazadjiev. Exact Static Solutlons In Elnstein-Maxwell-Djlaton Gravlty wjth
Arbitrary Djlaton Coupllng Parametel'
B. Dragovich, Lj . Ne~i6. On Adelic Generallzatjon of Cosmological
21
30
34
38
42
46
50
54
58
Mlnlsuperspace Models
62
S. S. Yazadjiev, T. L. Boyadjiev. M. D. Todorov, P. P. Fiziev. A Free Boundary
Problem In the Theoly of the Stars
M. Cristea, A. Cristea. Numerical Solutlon ofSelected Partlal Dlfferentlal
66
Equatlons in Mathematical Physlcs '
70
M. Sioutas, H. Flocas. Synoptjc Flow Types Assocjated wlth Hailstorm Activitty
in Nol'them Greece
N. Gospodinova, K. Ivanova, M. Michalev, E. Clothiaux. Local Correlations In
Cloud ~ase Heib"ht Records Studied wlth the Detrended Fluctuation Analysis
(DFA) Method
74
78
D. Diaconu. Soil Poroslty Dlsrtlbutlon and the Underground Water Transport
Characteristics
82
C. Zerefos, D. Syrakov, K. Ganev, A. Vasaras. K. Kourtidis, M. Tzortziou,
M. Prodanova, R. Dimitrova, E. Georgieva, D. Yordanov, N. Miloshev.
Study of the Pollution Exchange between ~ulgarlan and Northem Greece
A1. Toma, C. Dulama, M. Pavelescu. Laboratoly Experiments on Radionuclldes
Partitlon between Solid and Liquid Phases
F. Sekkin, A. Tanbay, G. Yener 210po Activjty Concentrations in Mussels at
86
90
Aegean Turkish Coast
94
O. Iacob, E. Botezatu. Exposures from Natural Radiation 1~ack~"round in Romania
98
ISSN 1310-0157