Články / Articles (RICE) Collection home page

Browse
Subscribe to this collection to receive daily e-mail notification of new additions RSS Feed RSS Feed RSS Feed
Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 99
Resl, Vladimír , Soukup, Radek , Leba, Martin , Blecha, Tomáš , Řeboun, Jan , Drobičková, Klára , Bláhová, Eliška
Standardní, opomíjené i nové informace o kompesivní terapii bandážemi

The article is introduced with short summary of anatomical and pathological causative data of chronic venous insuficience. Patophysiological consequences and their influence upon indication and optimalisation of compressive treatment are closely discussed. Dependence of physical rules according to that...

Resl, Vladimír , Drobičková, Klára , Bláhová, Eliška , Soukup, Radek , Leba, Martin , Blecha, Tomáš , Řeboun, Jan
Nezbytnost objektivního měření dosažené léčebné komprese - nové patofyziologické úvahy a informace o terapii

The article features analysis of all noted as well as new factors that inluence treatment results by means of compression. The therapy outcome is last but not least dependent upon abilities of patient and on theoretic and practical skills of medical staff members. Selection of...

Lovecký, Martin , Gincelová, Kristýna , Haroková, P. , Jiřičková, Jana , Smutný, Vladimír , Závorka, Jiří
Performance of ENDF/B-VIII.0 library for VVER reactors criticality safety, fuel depletion and reactor dosimetry applications

The latest ENDF/B nuclear data library released in 2018 is the result of a new international approach to develop evaluated nuclear data for general purpose applications. In order to use the latest ENDF/B-VIII.0 nuclear data library in safety analyses, validation calculations for&#x...

Lalbakhsh, A. , Jamshidi, Mohammad , Siahkamari, Hesam , Ghaderi, Amirhossien , Golestanifar, Alireza , Linhart, Richard , Talla, Jakub , Simorangkir, Roy B.V.B. , Mandal, Kaushik
A compact lowpass filter for satellite communication systems based on transfer function analysis

This paper presents a very efficient design procedure for a high-performance microstrip lowpass filter (LPF). Unlike many other sophisticated design methodologies of microstrip LPFs, which contain complicated configurations or even over-engineering in some cases, this paper presents a straightforward ...

Jamshidi, Mohammad , Lalbakhsh, Ali , Talla, Jakub , Peroutka, Zdeněk , Hadjilooei, Farimah , Lalbakhsh, Pedram , Jamshidi, Morteza , La Spada, Luigi , Mirmozafari, Mirhamed , Dehghani, Mojgan , Sabet, Asal , Roshani, Saeed , Roshani, Sobhan , Bayat-Makou, Nima , Mohamadzade, Bahare , Malek, Zahra , Jamshidi, Alireza , Kiani, Sarah , Hashemi Dezaki, Hamed , Mohyuddin, Wahab
Artificial intelligence and COVID-19: deep learning approaches for diagnosis and treatment

COVID-19 outbreak has put the whole world in an unprecedented difcult situation bringing life around the world to a frightening halt and claiming thousands of lives. Due to COVID-19's spread in 212 countries and territories and increasing numbers of infected cases and death tol...

Faraji, Jamal , Ketabi, Abbas , Hashemi Dezaki, Hamed , Shafie-Khah, Miadreza , Katalao, Joao P.S.
Optimal day-ahead scheduling and operation of the prosumer by considering corrective actions based on very short-term load forecasting

Energy management systems (EMSs) play an important role in the optimal operation of prosumers. As an essential segment of each EMS, the load forecasting (LF) block enhances the optimal utilization of renewable energy sources (RESs) and battery energy storage systems (BESSs). In this...

Kuchanskyy, Vladislav , Rubanenko, Olena
Influence assesment of autotransformer remanent flux on resonance overvoltage

Abnormal resonance overvoltagesoccur due to the emergence of non-sinusoidal modes of bulk electrical networks. The considered type of overvoltage refers to durable internal overvoltages, which have characteristics that can exceed the maximum permissible magnitude with a certain correlation of the ...

Rubanenko, Oleksander , Grishchuk, Maksim , Rubanenko, Olena
Planning of the experiment for the defining of the technical state of the transformer by using amplitude-frequency characteristic

The article analyzes existing methods of diagnosing power transformers (PTs). The technique of experiment planning using D-optimal plans is investigated. According to the results of the study, a D-optimal plan of the frequency response measurements was created, which defines the algorithm of...

Lezhniuk, Petr , Komar, Vyacheslav , Teptya, Vira , Rubanenko, Olena
Principle of the least action in models and algorithms optimization of the conditions of the electric power system

The possibility and expediency of application of the principle of least action (PLA) in the optimum control of conditions of the electric power system (EPS) is shown. The loss of active power and electricity was taken as the criterion of optimality. The algorithm for determini...

Petrášová, Iveta , Kotlan, Václav , Šroubová, Lenka , Karban, Pavel , Doležel, Ivo
Calibration of laser welding model based on optimization techniques

Purpose – The purpose of this paper is to present the calibration of a laser welding model suitable for solving problems with input data that are either unknown or known only approximately. Design/methodology/approach – The calibration starts from the measured temperature profile&#...

Smolyanov, Ivan Alexandrovich , Kotlan, Václav , Doležel, Ivo
Optimal heat induction treatment of titanium alloys

Purpose – This paper aims to propose a number of approaches to reduce the temperature gradient of titanium billets in the heat treatment process. Design/methodology/approach – Modeling physical processes in the induction unit is calculated by the finite element method. Required pow...

Gonzalez-Teodoro, Jorge Rafael , Romero-Cadaval, Enrique González , Asensi, Rafael , Prieto, Roberto , Kindl, Vladimír
New electrical parameters extraction method based on simplified 3D model using finite element analysis

Purpose–The purpose of this paper is the presentation of an electrical equivalent circuit for inductivecomponents as well as the methodology for electrical parameter extraction by using a 3 Dfinite elementanalysis (FEA) tool.Design/methodology/approach–A parameter extraction based on energies has ...

Dachs, F. , Alozy, J. , Belyaev, N. , Bergmann, B. L. , Beuzekom, M. van , Billoud, T. R. V. , Burian, Petr , Broulím, Pavel , Campbell, M. , Chelkov, G. , Cherry, M. , Doronin, S. , Filippov, K. , Fusco, P. , Gargano, F. , Heijden, B. van der , Heijne, E. H. N. , Konovalov, S. , Cudie, X. L. , Loparco, F. , Mascagna, V. , Mazziotta, M. N. , Meduna, L. , Pernegger, H. , Ponomarenko, D. , Pospíšil, S. , Prest, M. , Rembser, C. , Romaniouk, A. , Savchenko, A. A. , Schaefer, D. , Schioppa, E. J. , Sergeeva, D. , Shchukin, D. , Shulga, E. , Smirnov, S. , Smirnov, Y. , Smolyanskiy, P. , Soldani, M. , Spinelli, P. , Strikhanov, M. , Teterin, P. , Tikhomirov, V. , Tishchenko, A.A. , Vallazza, E. , Vorobev, K. , Zhukov, K.
Transition radiation measurements with a Si and a GaAs pixel sensor on a Timepix3 chip

Growing energies of particles at modern or planned particle accelerator experiments as well as cosmic rayexperiments require particle identification at gamma-factors (𝛾) of up to∼105. At present there are no detectorscapable of identifying charged particles with reliable efficiency in this range...

Trnka, Pavel , Hornak, Jaroslav , Prosr, Pavel , Michal, Ondřej , Wang, Feipeng
Various aging processes in a paper-natural ester insulation system in the presence of copper and moisture

This article adds more information to the problem of natural ester use as an electroinsulating uid in cellulose paper-oil systems, e.g., for use in power transformers. An accelerated thermal aging (120, 140 and 160 C) of samples consisting of cellulose paper (transformerboard), a t...

Gonzalez-Teodoro, Jorge Rafael , Romero-Cadaval, Enrique , Asensi, Rafael , Kindl, Vladimír
Equivalent electrical model of an inductor excited by a triangular current including saturation

A model for an equivalent electrical circuit designed for a ferrite (3C90) inductor usually used in power converters excited by a non-sinusoidal current appropriate for use in power electronics is proposed. This study, based on 3D finite element analysis, leads to significant precision&...

González-Teodoro, Jorge Rafael , Romero-Cadaval, Enrique , Asensi, Rafael , Kindl, Vladimír
Determination of wire resistance caused by skin effect using modified 3D finite element model

The article introduces methodology of lowering time and computational requirements for complex 3D finite element analysis. It is based on approximation of winding cross section with a proper polygonal shape which significantly reduces the number of mesh elements and eases the computational&#...

Kindl, Vladimír , Frivaldský, Michal , Zavřel, Martin , Pavelek, Miroslav
Generalized design approach on industrial wireless chargers

The paper briefly discusses the most important standards and regulations established for high-power wireless power transfer systems and introduces the main issues concerned with the conceptual design process. It analyses the electromagnetic design of the inductive magnetic coupler and proposes ke...

Laksar, Jan
Improved calculation of the slot leakage inductance of different slot shapes

The slot leakage inductance calculation is an important element of the electric machine’s design. The empirical definitions are described in the literature and widely used until today. The crucial parameter is the slot permeance factor which defines the influence of slot dimensions on&#...

Bergmann, Benedikt, Ludwig , Billoud, Thomas Rémy Victor , Burian, Petr , Broulím, Pavel , Leroy, Claude , Lesmes, Catarína , Mánek, Petr , Meduna, Lukáš , Pospíšil, Stanislav , Sopczak, Andre , Suk, Michal
Relative luminosity measurement with Timepix3 in ATLAS

The capability of Timepix3 detectors installed in ATLAS to measure luminosity is evaluated. It is described how noisy pixels are identified and excluded. Two different methods for luminosity determination, i.e. cluster counting and thermal neutron counting are described and compared with eac...

Sodomka, Ondřej , Skřivan, Vojtěch , Mach, František
Magnetic forces behind hyperelastic behavior of magnetorheological elastomers

A magnetic and nonlinear structural mechanic coupled problem is discussed concerning the behaviour of a magnetorheological elastomer. Material properties and hyperelastic character of the material were found by measurements. Based on the measurements and computations, a coupled mathematical model is&#...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 99