TY - JOUR AU - Kis, Dániel Péter AU - Szatmáry, Zoltán TI - Examination of Stochastic and Deterministic Perturbations in Reactor Physics JF - JOURNAL OF COMPUTATIONAL AND THEORETICAL TRANSPORT J2 - J COMPUT THEOR TRANSP VL - 45 PY - 2016 IS - 6 SP - 486 EP - 499 PG - 14 SN - 2332-4309 DO - 10.1080/23324309.2016.1196221 UR - https://m2.mtmt.hu/api/publication/3117252 ID - 3117252 LA - English DB - MTMT ER - TY - JOUR AU - Makai, Mihály AU - Szatmáry, Zoltán TI - Iterative Determination of Distributions by the Monte Carlo Method in Problems with an External Source JF - NUCLEAR SCIENCE AND ENGINEERING J2 - NUCL SCI ENG VL - 177 PY - 2014 IS - 1 SP - 52 EP - 67 PG - 16 SN - 0029-5639 DO - 10.13182/NSE12-97 UR - https://m2.mtmt.hu/api/publication/2763570 ID - 2763570 N1 - Cited By :1 Export Date: 8 October 2020 CODEN: NSENA AB - In the Monte Carlo (MC) method statistical noise is usually present. Statistical noise may become dominant in the calculation of a distribution, usually by iteration, but is less Important in calculating integrals. The subject of the present work is the role of statistical noise in iterations involving stochastic simulation (MC method). Convergence is checked by comparing two consecutive solutions in the iteration. The statistical noise may randomize or pervert the convergence. We study the probability of the convergence, and the correct estimation of the variance in a simplified model problem. We study the statistical properties of the solution to a deterministic problem with a stochastic source obtained from a stochastic calculation. There are iteration strategies resulting in non-convergence, or randomly stopped iteration. LA - English DB - MTMT ER - TY - GEN AU - Aszódi, Attila AU - Czifrus, Szabolcs AU - Fehér, Sándor AU - Fejérdy, Győző AU - Makai, Mihály AU - Szatmáry, Zoltán AU - Vajda, Nóra AU - Zagyvai, Péter TI - Viszontválaszok A 'PAE 2. blokk 1. számú akna sérült fűtőelem eltávolítás elvi engedélykérelmet megalapozó dokumentáció felülvizsgálata és értékelése' című BME NTI szakvélemény kapcsán készült paksi válasz megállapításaira PY - 2005 UR - https://m2.mtmt.hu/api/publication/2614278 ID - 2614278 LA - Hungarian DB - MTMT ER - TY - GEN AU - Aszódi, Attila AU - Csom, Gyula AU - Czifrus, Szabolcs AU - Fehér, Sándor AU - Fejérdy, Győző AU - Makai, Mihály AU - Szatmáry, Zoltán AU - Vajda, Nóra AU - Zagyvai, Péter TI - PAE 2. blokk 1. számú akna sérült fűtőelem eltávolítás elvi engedélykérelmet megalapozó dokumentáció felülvizsgálata és értékelése, PY - 2005 UR - https://m2.mtmt.hu/api/publication/2614271 ID - 2614271 LA - Hungarian DB - MTMT ER - TY - BOOK AU - Szatmáry, Zoltán AU - Aszódi, Attila TI - Csernobil - Tények, okok, hiedelmek ET - 0 PB - Typotex Kiadó CY - Budapest PY - 2005 SP - 220 SN - 9639548685 UR - https://m2.mtmt.hu/api/publication/2614089 ID - 2614089 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Lengyel, M AU - Szatmáry, Zoltán AU - Érdi, Péter TI - Dynamically detuned oscillations account for the coupled rate and temporal code of place cell firing JF - HIPPOCAMPUS J2 - HIPPOCAMPUS VL - 13 PY - 2003 IS - 6 SP - 700 EP - 714 PG - 15 SN - 1050-9631 DO - 10.1002/hipo.10116 UR - https://m2.mtmt.hu/api/publication/1228251 ID - 1228251 AB - Firing of place cells in the exploring rat conveys doubly coded spatial information: both the rate of spikes and their timing relative to the phase of the ongoing field theta oscillation are correlated with the location of the animal. Specifically, the firing rate of a place cell waxes and wanes, while the timing of spikes precesses monotonically as the animal traverses the portion of the environment preferred by the cell. We propose a mechanism for the generation of this firing pattern that can be applied for place cells in all three hippocampal subfields and that encodes spatial information in the output of the cell without relying on topographical connections or topographical input. A single pyramidal cell was modeled so that the cell received rhythmic inhibition in phase with theta field potential oscillation on the soma and was excited on the dendrite with input depending on the speed of the rat. The dendrite sustained an intrinsic membrane potential oscillation, frequency modulated by its input. Firing probability of the cell was determined jointly by somatic and dendritic oscillations. Results were obtained on different levels of abstraction: a purely analytical derivation was arrived at, corroborated by numerical simulations of rate neurons, and an extension of these simulations to spiking neurons was also performed. Realistic patterns of rate and temporal coding emerged and were found to be inseparable. These results may have implications on the robustness of information coding in place cell firing and on the ways information is processed in structures downstream to the hippocampus. (C) 2003 Wiley-Liss, Inc. LA - English DB - MTMT ER - TY - BOOK AU - Szatmáry, Zoltán TI - Supplement to the Final Report of the Temporary International Collective ET - 0 PB - Akadémiai Kiadó CY - Budapest PY - 2001 UR - https://m2.mtmt.hu/api/publication/2665613 ID - 2665613 LA - English DB - MTMT ER - TY - BOOK AU - Alvarez, C AU - Alvarez, C AU - Becker, R AU - Kravchenko, IuIa AU - Szatmáry, Zoltán AU - Vidovszky, I TI - Final Report of TIC.Volume 4. Experimental Investigations of the Physical Properties of WWER-type Uranium-Water Lattices TS - Experimental Investigations of the Physical Properties of WWER-type Uranium-Water Lattices ET - 0 PB - Akadémiai Kiadó CY - Budapest PY - 2000 UR - https://m2.mtmt.hu/api/publication/2665552 ID - 2665552 LA - English DB - MTMT ER - TY - JOUR AU - Payrits, S AU - Szatmáry, Zoltán AU - Zalányi, László András AU - Érdi, Péter TI - Use of parallel computers in neurocomputing JF - LECTURE NOTES IN COMPUTER SCIENCE J2 - LNCS VL - 1908 PY - 2000 SP - 313 EP - 321 PG - 9 SN - 0302-9743 DO - 10.1007/3-540-45255-9_43 UR - https://m2.mtmt.hu/api/publication/1230849 ID - 1230849 LA - English DB - MTMT ER - TY - BOOK AU - Szatmáry, Zoltán TI - Bevezetés a reaktorfizikába ET - 0 PB - Akadémiai Kiadó CY - Budapest PY - 2000 UR - https://m2.mtmt.hu/api/publication/2665615 ID - 2665615 LA - Hungarian DB - MTMT ER -