
9 Theoretical and Mathematical Physics 
Chair: Prof. Vladimir Dobrev – vkdobrev@yahoo.com; dobrev@inrne.bas.bg
Secretary: Assoc. Prof. Alexander Ganchev – ganchev@inrne.bas.bg 
10 Computational Physics 
Chair: Prof. Dimitar Bakalov – dbakalov.bpu17.sect10@gmail.com
Secretary: Assist. Petar Danev 
11 Meteorology and Geophysics 
Chair: Corr. Member BAS Nikolay Miloshev – miloshev@geophys.bas.bg
Secretaries: Assoc. Prof. Maria Kolarova – Maria.Kolarova@meteo.bg
Assoc. Prof. Reneta Raykova – rraykova@phys.unisofia.bg 
12 Environmental Physics 
Chair: Assoc. Prof. Christo Angelov – hangelov@inrne.bas.bg
Secretary: Assist. Prof. Nina Nikolova – nikol@inrne.bas.bg 
13 Alternative Sources of Energy 
Chair: Prof. Petko Vitanov – vitanovpetko@yahoo.co.uk
Secretary: Assoc. Prof. Miglena Dimitrova – miglena@phys.bas.bg 
14 Econophysics 
Chair: Prof. Nikolay Vitanov – vitanov@imbm.bas.bg
Secretary: Assoc. Prof. Elena Nikolova – elena@imbm.bas.bg 
15 Applied Physics 
Chair: Prof. Petar Petrov – appl_physpetrov@mail.bg
Secretary: PhD student Stefan Valkov – stsvalkov@gmail.com 
16 Biophysics and Medical Physics 
Chair: Prof. Isak Bivas – bivas@issp.bas.bg
Secretary: Assist. Zdravka Slavkova – zdravka_slavkova@abv.bg 
17 Physics Education 
Chair: Assoc. Prof. Maya Gaydarova – mayag@abv.bg
Secretary: Assist. Prof. Ivelina KotsevaGeorgieva – iva_georgieva@phys.unisofia.bg 
18 History and Philosophy of Physics 
Chair: Prof. Ivan Lalov – nkojuharova@tusofia.bg
Secretary: Penka Lazarova – lazarova@usbbg.org 
19 Metrology and Instrumentation 
Chair: Prof. Boris Arnaudov – arnaudov@phys.unisofia.bg

P R O G R A M M E
26 August 2018 (Sunday)
Inter Expo Center
14:00–17:00 Registration and all other days 8:30–11:00
17:00–19:00 Welcome Party
27 August 2018 (Monday)
Hall Vitosha
09:00–10:00 Opening Ceremony
1st Session Chair: G. Djordjevic
10:00–10:30 R. Voss (EPS President): "50 years of EPS50 years of service to the European
physics community"
10:30–11:00 O. Yavas: “Accelerator based studies and applications in Turkey"
2nd session Chair: N. Tonchev
11:30–12:00 I. Todorov: "The usefulness of useless knowledge": Numbers Euler played
with and perturbative QFT"
12:00–12:30 N. Sabotinov: "Metal vapor lasers and Bulgarian contribution for their
development"
12:30–13:00 D. Balabanski, “Dayone photonuclear experiments at ELINP"
28 August 2018 (Tuesday)
Section 06: Condensed Matter Physics and Statistical Physics
Hall Musala
1st Session Chair: T. Mishonov
9:00–9:30 P. Kralchevsky, M. Georgiev, K. Danov, G. Radulova, T. Gurkov, S. Stoyanov, E. Pelan: “Hardening of particle/water/oil three  phase dispersions due to capillary bridges with applications for new products and materials”
9:30–10:00 Z. Popovic: “Raman scattering and “nanomagnetism”
10:00–10:30 D. Krstovska, E. Choi and E. Steven: “Quantum oscillations of thermopower in the charge density wave state of organic conductor ? (BEDT–TTF) 2KHg(SCN)4”
2nd session Chair: P. Kralchevsky
11:00–11:30 V. Ciupina: “CarbonTitanium Multilayer Thin Films Obtanied by TVA Method”
11:30–12:00 J. Indekeu: “BLUES function method in physics”
12:00–12:30 A. Popov: “Defect Formation in Functional Semiconductor Structures with Heterostructured Transition Region”
3rd session Chair: D. Krstovska
13:50–14:10 P. Djondjorov, V. Vassilev, D. Danchev: “Analytic Solutions for the TemperatureField Behavior of the GinzburgLandau Ising Type MeanField Model with Dirichlet Boundary Conditions”
14:10–14:30 V. Vassilev, P. Djondjorov and D. Danchev: “Analytic Representation of the Order Parameter Profiles and Susceptibility of a GinzburgLandau Type Model with Strongly Adsorbing Competing Walls”
14:30–15:00 B. Salmankurt and H. Gurel: “Computational Aspects of Nanostructures: PW vs AO calculations”
15:00–15:20 R. Kamburova, S. Varbev and M. Primatarowa: “Solitons in a classical inhomogeneous ferromagnetic chain with nearestand nextnearestneighbor exchange interactions”
15:20–15:40 M. Marku and M. Ifti: “A Comparison Analysis of the Dynamics and Stability of Klotho Gene through Discrete and Hybrid Models”
4th session Chair: A. Popov
16:00–16:20 T. Mishonov, I. Dimitrova, A. Varonov: “CallenWelton fluctuation dissipation theorem as consequence of Nyquist theorem”
16:20–16:50 S. Popov, V. Vassilev: “Symmetries and Conservation Laws of Equations of Motion of DoubleWall Carbon Nanotubes Conveying Fluid”
16:50–17:10 B. Kolev: “Positron lifetime calculations of defects in Titanium”
17:10–17:30 S. Zou, W. Bai, T. Yang: “Dynamics of vortex lines in threedimensional BoseEinstein condensates”
17:30–18:00 H. Chamati, D. Shopova: “Ferrimagnetism in a twosublatttice bilinearly coupled Heisenberg model”
18:00–18:30 Daniel Vizman: “Control of Melt Convection Using Magnetic Fields”
18:30–19:00 M. Ristova, “XPS Study of CdO and CdO2 Phase Transitions in Electrochemicaly Modified NixCd1xO Films”

28 August 2018 (Tuesday)
Section 9: Theoretical and Mathematical Physics
Hall Vihren
1st Session Chair: V. Dobrev
9:00–9:30 L. Anguelova, P. Surany and L. Wijewardhana: “Systematics of Constant Roll Inflation”
9:30–10:00 B. Lazov, P. Nedkova and S. Yazadjiev: “Uniqueness of Static Phantom Wormhole Solutions to the EinsteinMaxwellDilaton Equations”
10:00–10:30 M. Chizhov and M. Naydenov: “Isospininvariant Nambu –JonaLasinio Model with Complete Set of Spin1 Excitations”
2nd session Chair: L. Anguelova
11:00–11:30 R. Constantinescu: “Nonlinear mathematical models for physical phenomena”
11:30–12:00 O. Kong: “Quantum Spacetime Pictures from a Relativity Perspective”
12:00–12:30 Y. Iwata: “Relativistic formulation of abstract evolution equations”
3rd session Chair: R. Constantinescu
14:00–14:30 S. Stoimenov: “Metaconformal Algebra in d Spatial Dimensions”
14:30–14:50 A. Ganchev: “On BulkBoundary Duality and Deep Learning”
14:50–15:10 S. Vossos and E. Vossos: “Unification of Newtonian Physics with Einstein Relativity Theory by using Generalized Metrics of Complex Spacetime and applications to Microcosmos and Megacosmos”
15:10–15:30 C. Anghel: “On a class of RotaBaxter operators with geometric origin”
4th session Chair: A. Ganchev
16:00–16:30 H. Prado: “The Laplace Transform and Zetanonlocal Field Equations”
16:30–17:00 H. Karayer, D. Demirhan and F. Buyukkilic: “Solution of Schrodinger equation for potential U(r) = ?/r + ?r + kr2 using extended NikiforovUvarov method and polynomial solutions of biconfluent Heun equation”
17:00–17:20 M. Irfan: “ZeroCurvature Representation of NonAbelian Quantum Painleve' II Equation with Its Darboux Solutions”
17:20–17:40 S. Mazharimousavi and M. Halilsoy: “Absence of Buckling in Nerve Fiber”
17:40–18:00 Y. Uyaroglu: “An Investigation into the Chaotic Supply Chain System and Chaotic Analysis of Fractional Order Supply Chain System”
Poster session
E. Nissimov, E. Guendelman and S. Pacheva: “Modified Gravity and Inflaton Assisted Dynamical Generation or Suppression of Charge Confinement and Electroweak Symmetry Breaking in the Evolution of the Universe”
N. Stoilova and J. Van der Jeugt: “Paraparticles and representations of (Z2x Z2) graded Lie superalgebras”
P. Popivanov, A. Slavova: “Boundary Value Problem for the Polyharmonic Operator Violating the ShapiroLopatinskii Conditions”
D. Staicova: “The MultiMeasure Cosmological Model and Its Peculiar Effective Potential”
G. Grahovski, J. Mustafa and H. Susanto: “Generalised Fourier transform for multicomponent NLS equation on symmetric spaces with PTsymmetry”
D. Delibasic, D. Dimitrijevic and G. Djordjevic: “DBI and LocallyEquivalent StandardType Lagrangians in a FLRW spacetime”
T. Popov: “Hydrogen Atom and Light Cone Symmetries Mirrored in One Jordan Algebra”

28 August 2018 (Tuesday)
Section 12: Environmental Physics
Hall Rodopi
1st Session Chair: Ch. Angelov
9:00–9:20 St. Tsitomeneas: “Principles and measures for adaptation to climate change derived by natural or human generated effects on the planetary radiation equilibrium”
9:20–9:40 G. Xhixha, E. Spahiu, F. Hasani, M. Shyti and F. Cfarku: “Identification of industrial sectors involving NORM in Kosovo”
9:40–10:00 M. Kaceli, M. Shyti, P. Dhoqina, N. Civici and G. Xhixha: “Determination of natural radioactivity in beach sands from the Adriatic sea coastline, Albania”
10:00–10:20 M. Kakona, V. Stepan, O. Ploc, N. Nikolova, T. Arsov, Ch. Angelov: “Comparative measurements of mixed radiation field usingLiulin and AIRDOS dosimeters”
2nd session Chair: R. Metcheva
11:00–11:20 B. C. Ozturk, G. Y., N. Cam: “Ecological risk assessment of coastal sediments taken from public beaches of Erdek and Band?rma”
11:20–11:40 M. Beltcheva, R. Metcheva, E. Geleva, I. Aleksieva, I. Ravnachka, Ch. Angelov: “Total ?activity in monitor species small rodents from two different altitudes in Rila Mountain (Bulgaria)”
11:40–12:00 N. Takuchev: “Solar corpuscular radiation and mortality from various forms of ischemic heart disease in Bulgaria for the interval 2005–2015”
12:00–12:20
M. Zoran, R. Savastru, D. Savastru, A. Dida: “Derived biogeophysical information from satellite imagery for assessment of extreme climate impacts on urban green environment”
3rd session Chair: N. Tyutyundzhiev
14:00–14:20 M. Penache, M. Zoran: “Seasonal trends of surface carbon monoxide concentrations in relation with air quality”
14:20–14:40 M. Udristioiu, D. Rosca, L. Velea, R. Bojariu, S. Sararu, A. Rosca: “Surface temperature during summer days in Craiova, Romania, from satellite observations and infrared thermovision measurements”
14:40–15:00 M. Klemo, J. Priska: “A survey on energy efficiency and consumption of buildings in Albania”
15:00–15:20 R. Metcheva, M. Beltcheva, M. TopashkaAncheva, N. Tyutyundzhiev, I. Aleksieva, I. Ravnachka, P. Ostoich, T. Arsov, Ch. Angelov: “Potential effect of natural gamma and UV irradiation on Albino mice at two altitudes (Rila mountain, BG)”
Poster session
M. K. Xhixha, F. Hasani, M. Shyti, G. Xhixhà: “A Study of Natural Radioactivity Levels in Soils across Kosovo: a Case of Study in Pristina Region”
F. Mandija, F. Vila, E. Lukaj, J. Bushati: “Desert Dust Episodes Over the Region of Balkan Peninsula”
N. Ivanova and B. Manushev: “Natural Radionuclides in Drinking Water”
M. Shyti: “Calibration and Performance of HPGe Detector for Environmental Radioactivity Measurements using LabSOCS”
M. Shyti, F. Cfarku, I. Berdufi, E. Bylyku, R. Hoxha: “Natural Radioactivity in Cigarette Tobacco and Radiation Dose Induced from Smoking”
R. Angelova, L. Slavov, G. Kolarov, I. Grigorov, Ch. Ghelev, L. Gurdev, I. Nedkov, D. Stoyanov: “Parallel Lidar and InSitu Study of the Aerosol Particles Mass Concentration, Shape and Character in Highly Polluted Zones in Sofia City”
O. Nitcheva, V. Koutev, B. Milev, P. Dobreva, T. Trenkova: “Management of the Agricultural Nitrogen (N) Pollution in the Bulgarian Groundwater Vulnerable Zones”
O. Nitcheva, A. Yordanova, B. Milev, P. Dobreva, V. Koutev, T. Trenkova: “Soil Physics Simulation as an Option for Country Groundwater Recharge Mapping. Case Study of Bulgaria”
G. Bontas: “Sachnisin. An Architectural Element in the Balkans and Asia MinorIts Bioclimatic Role”
K. Velichkova, M. Vatzkitcheva, P. Savov, N. Kolev: “Behavior of the Parameters Characterizing The Air Quality in an Enclosed Classroom Ventilated Either by a Fan Or Naturally”
K. Velichkova and D. Krezhova: “Extraction of the Red Edge Position of Hyperspectral Reflectance Data for Plant Stress Monitoring”
A. Deleva, T. N. Dreischuh, Elena N. Krasteva, and Liliya A. Vulkova: “Thick Anthropogenic Aerosol Layers Detected by LIDAR above Sofia”
A. Deleva, T. Dreischuh, E. Krasteva, and L. Vulkova: “Model Forecasts Importance for LIDARData Analysis”
T. Dreischuh, Z. Peshev, I. Grigorov, A. Deleva, G. Kolarov and D. Stoyanov: “Remote Investigations of NearSurface Atmospheric Aerosol Optical Properties over Sofia Urban Area”
P. Dhoqina, S. Mico, M. Alushllari: “Fractal Dimension of Soot Aggregates”
M. Alushllari, P. Dhoqina, S. Mico, N. Civici, A. Deda, L. Kacani: “Hazardous Quotient Factor of Lead in Soil around Industrial Waste”
L. Kostov, R.G. Kobilarov, Ch. Protochristov, Ch. Stoyanov: “Radiological risk due to the terrestrial gamma exposure in soil samples from Central Balkan National Park, Bulgaria”
N. Tyutyundzhiev, Ch. Angelov, K. Lovchinov, T. Arsov, Hr. Nichev, M. Petrov: “Opensource Tool for Solar UV Measurements”
M. Stoyanova, A. Kandilarov, V. Koutev, O. Nitcheva and P. Dobreva: “Multispectral imaging for assessment of crop habitus”
V. Kleshtanova, Ch. Angelov, I. Kalapov, T. Arsov, G. Guerova, V. Tonchev: “What One Can Learn From the Cloud Condensation Nuclei (CCN) Size Distributions as Monitored by the BEO Moussala?”
V. Danchovski, D. Ivanov, P. Savov, N. Kolev, T. Evgenieva, and Evgeni Donev: “Urban Mixing Layer Height and Aerosol Concentration in Sofia, Bulgaria”
N. Nikolova, K. Kudela, R. Langer, I. Strharsky, T. Arsov, I. Angelov, Ch. Angelov, A. Chilingarian and T. Karapetyan: “SEVAN Detector Measurements At BEO Moussala And Lomnicky Stit: First Experience From 20142017”
F. Cfarku, M. Shyti, I. Berdufi, P. Dhoqina, E. Bylyku: “Determination of Gross Alpha Beta Surface Contamination by handheld Equipment
F. Cfarku, M. Shyti, I. Berdufi, P. Dhoqina, E. Bylyku: “Radioactivity of Po210 in Drinking Water Samples of Albania”
I. Penev, Ch. Angelov, T. Arsov, St. Georgiev, N. Uzunov: “106Ru Aerosol Activity Observation above Southeast Europe in October 2017”

