TY - CHAP AU - Bokharaeian, Mahsa AU - Novák, Levente AU - Tóth, László AU - Csámer, Árpád TI - Effect of silicic acid on thermal and rheological properties of some lava analog mixtures T2 - XXII International Conference of Young Geologists PY - 2023 SP - 20 EP - 22 PG - 3 UR - https://m2.mtmt.hu/api/publication/34727707 ID - 34727707 LA - English DB - MTMT ER - TY - JOUR AU - Vas, Ádám AU - Tóth, László TI - Comparison of Different Smoothing Methods for Initial Data of the DSN-PC Sensor Network JF - COMMUNICATIONS IN COMPUTER AND INFORMATION SCIENCE J2 - COMMUN COMPUT INFORM SCI VL - 1337 PY - 2021 SP - 437 EP - 449 PG - 13 SN - 1865-0929 DO - 10.1007/978-3-030-66242-4_34 UR - https://m2.mtmt.hu/api/publication/31873656 ID - 31873656 LA - English DB - MTMT ER - TY - JOUR AU - Vas, Ádám AU - Owino, Oluoch Josphat AU - Tóth, László TI - Improving the simultaneous application of the DSN-PC and NOAA GFS datasets JF - ANNALES MATHEMATICAE ET INFORMATICAE J2 - ANN MATH INFORM VL - 51 PY - 2020 SP - 77 EP - 87 PG - 11 SN - 1787-5021 DO - 10.33039/ami.2020.07.006 UR - https://m2.mtmt.hu/api/publication/31635794 ID - 31635794 LA - English DB - MTMT ER - TY - JOUR AU - Momono, Hiroki AU - Matsuda, Hiroyuki AU - Tóth, László AU - Daimon, Hiroshi TI - Development of Simple Display-type VD-WAAEL Analyzer JF - E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY J2 - E-J SURF SCI NANOTECH VL - 18 PY - 2020 SP - 57 EP - 61 PG - 5 SN - 1348-0391 DO - 10.1380/ejssnt.2020.57 UR - https://m2.mtmt.hu/api/publication/31507313 ID - 31507313 AB - We have realized a simple and compact new two-dimensional electron analyzer "a VD-WAAEL analyzer" using a variable-deceleration-ratio wide-acceptance-angle electrostatic lens (VD-WAAEL). Using an electron gun and an angle measurement tool, we confirmed that a two-dimensional angular distribution could be measured at once over a large solid angle of +/- 45 degrees. We also confirmed that energy analysis could be performed with an aperture. Here a high energy resolution of similar to 0.23% was obtained by using the aperture size of 0.8 mm. at the 40 degrees position. Moreover, a magnified image of SUS316 #100 mesh was successfully measured. The magnification ratio was 25, which was in good agreement with the calculation. LA - English DB - MTMT ER - TY - PAT AU - Matsuda, Hiroyuki AU - Daimon, Hiroshi AU - Tóth, László TI - Variable Reduction Ratio Spherical Aberration Correction Electrostatic Lens, Wide Angle Energy Analyzer, and Two Dimensional Electron Spectrometer PY - 2019 UR - https://m2.mtmt.hu/api/publication/31654258 ID - 31654258 LA - English DB - MTMT ER - TY - CHAP AU - Vas, Ádám AU - Tóth, László ED - Vishnevskiy, Vladimir M. ED - Samouylov, Konstantin E. ED - Kozyrev, Dmitry V. TI - Investigation of a hybrid sensor- and computational network for numerical weather prediction calculations T2 - Distributed Computer and Communication Networks PB - Springer Netherlands CY - Cham SN - 9783030366254 T3 - Communications in Computer and Information Science, ISSN 1865-0929 ; 1141. PY - 2019 SP - 510 EP - 523 PG - 14 DO - 10.1007/978-3-030-36625-4_41 UR - https://m2.mtmt.hu/api/publication/30877592 ID - 30877592 AB - In this paper we investigate a hybrid approach to integrate our Distributed Sensor Network for Prediction Calculations (DSN-PC) system’s measurements into a hybrid computational network which assimilates them with publicly available atmospheric analysis dataset. The forecast calculations are based on a simple and relatively easily implementable algorithm. The parallelization is provided on the mathematical layer which is the highest possible level of parallelizing an algorithm for the solution of a system of differential equations. Our future goal is to move to solely DSN-PC measurement-based computations to make weather forecasts, but we do not have sufficient number of stations installed yet. However, a hybrid solution where we included NOAA Global Forecast System (GFS) data in the production of the initial values made it possible to test our sensor network’s capability of performing such calculations. To evaluate the viability of our approach we analyzed the error of the forecasts. Below the results of the distributed calculations are shown along with the method of the assimilation of the two datasets. LA - English DB - MTMT ER - TY - JOUR AU - Matsuda, Hiroyuki AU - Tóth, László AU - Daimon, Hiroshi TI - Variable-deceleration-ratio wide-acceptance-angle electrostatic lens for two-dimensional angular and energy analysis JF - REVIEW OF SCIENTIFIC INSTRUMENTS J2 - REV SCI INSTRUM VL - 89 PY - 2018 IS - 12 PG - 10 SN - 0034-6748 DO - 10.1063/1.5043317 UR - https://m2.mtmt.hu/api/publication/30564280 ID - 30564280 AB - Variable-deceleration-ratio wide-acceptance-angle electrostatic lens (VD-WAAEL) is proposed as a potential technique for two-dimensional angular and energy analysis. The basic features of the lens are studied using the charge simulation method and ray tracing calculation. The lens uses an ellipsoidal mesh electrode and allows a wide acceptance angle of +/- 50 degrees. Two possible applications of the VD-WAAEL are discussed. One is a simple combination of the VD-WAAEL-projection-lens, in which an aperture is used for energy analysis. The other is a combination of the VD-WAAEL with a conventional electron spectrometer, which is responsible for obtaining higher energy resolution. The former is discussed in detail and the latter is described briefly. While the ray tracing calculation is only for the case of an ideal mesh, a note on the disturbing effect of mesh holes is presented. The best possible energy resolution of the simple VD-WAAEL-projection-lens analyzer seems to be around 1/1000, given a fine mesh electrode to suppress the disturbing effect of mesh holes. Published by AIP Publishing. LA - English DB - MTMT ER - TY - CHAP AU - Vas, Ádám AU - Tóth, László ED - Vladimir, M. Vishnevskiy ED - Dmitry, V. Kozyrev TI - Evaluation of a Simulated Distributed Sensor- and Computational Network for Numerical Prediction Calculations T2 - Distributed Computer and Communication Networks PB - Springer Netherlands CY - Cham SN - 9783319994475 T3 - Communications in Computer and Information Science, ISSN 1865-0929 ; 919. PY - 2018 SP - 9 EP - 20 PG - 12 DO - 10.1007/978-3-319-99447-5_2 UR - https://m2.mtmt.hu/api/publication/3425730 ID - 3425730 LA - English DB - MTMT ER - TY - JOUR AU - László, Levente Tóth AU - Fazekas, Ádám AU - Hiroyuki, Matsuda AU - Hiroshi, Daimon AU - Tóth, László TI - Realization of software based imaging energy analyzer on GPU JF - OPTIK: INTERNATIONAL JOURNAL FOR LIGHT AND ELECTRON OPTICS J2 - OPTIK VL - 157 PY - 2018 SP - 571 EP - 581 PG - 11 SN - 0030-4026 DO - 10.1016/j.ijleo.2017.11.100 UR - https://m2.mtmt.hu/api/publication/3295453 ID - 3295453 N1 - LA - English DB - MTMT ER - TY - CHAP AU - Vas, Ádám AU - Nagy, Gábor AU - Tóth, László ED - Vladimir, M Vishnevskiy TI - Autonomous Distributed Sensor and Computational Network T2 - Distributed computer and communication networks: control, computation, communications CY - Moszkva SN - 9785948364919 PY - 2017 SP - 76 EP - 78 PG - 3 UR - https://m2.mtmt.hu/api/publication/3425753 ID - 3425753 LA - English DB - MTMT ER -