• A NEW AND ADAPTIVE SECURITY MODEL FOR PUBLIC COMMUNICATION BASED ON CORRELATION OF DATA FRAMES 

      Autor: Haider Tarish, Haider; Muhsen Halboot, Dhiaa; Shahadib Ismael, Haider; See Hang, Ong
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      Recent developments in communication and information technologies, plus the emerging of the Internet of Things (IoT) and machine to machine (M2M) principles, create the need to protect data from multiple types of attacks. ...
    • INFORMATION AND ANALYTICAL SYSTEM FOR HAZARD LEVEL ASSESSMENT AND EMERGENCY RISK FORECASTING 

      Autor: Yemelin V., Pavel; Kudryavtsev S., Sergey; Yemelina K., Natalya
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The purpose of the article is to present an analytical system that allows users to proces data necessary for an industrial risk analysis and management, to monitor the level of industrial safety in a given site, and to ...
    • A STUDY OF FERROFLUID LUBRICATION BASED ROUGH SINE FILM SLIDER BEARING WITH ASSORTED POROUS STRUCTURE 

      Autor: Munshi M., Mohmmadraiyan; Patel R., Ashok; Deheri B., Gunamani
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      This paper attempts to study a ferrofluid lubrication based rough sine film slider bearing with assorted porous structure using a numerical approach. The fluid flow of the system is regulated by the Neuringer-Rosensweig ...
    • DETERMINATION OF DETONABLE GAS MIXTURE HEAT FLUXES AT THERMAL DEBURRING 

      Autor: Plankovskyy , Sergey; Teodorczyk , Andrzei; Shypul , Olga; Tryfonov , Oleg; Brega , Dmytro
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      Modern technology requires a multitude of precise parts that are a necessity in reliable methods of surface finishing. Energy of detonable gas mixture combustion has been used in manufacturing as a processing source for a ...
    • COMPARISON OF ENERGY FLOW STREAM AND ISENTROPIC METHOD FOR STEAM TURBINE ENERGY ANALYSIS 

      Autor: Blažević , Sebastijan; Mrzljak , Vedran; Anđelić , Nikola; Car , Zlatan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      In this paper, a comparison of two different methods for a steam turbine energy analysis is presented. A high-pressure steam turbine from a supercritical thermal power plant (HPT) was analysed at three different turbine ...
    • SOLAR ABSORBER WITH A STRUCTURED SURFACE – A WAY TO INCREASE EFFICIENCY 

      Autor: Mrňa , Libor; Řiháček , Jan; Šarbort , Martin; Horník , Petr
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The basic idea of a solar absorber’s thermal gain increase is the keyhole effect utilization during which the radiation is absorbed by multiple reflections on cavity walls. The lattice of pyramidal or conical cavities on ...
    • JATROPHA OIL WITH IRON NANOPARTICLES APPLICATION IN DRILLING PROCESSES 

      Autor: Shalimba , Veikko; Sopko , Vít
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      A performance of heat transfer fluids has a substantial influence on the size, weight and cost of heat transfer systems, therefore, a high-performance heat transfer fluid is very important in many industries. Over the last ...
    • TRACK GAUGE STABILITY UNDER EFFECT OF SLEEPER THERMAL EXPANSION 

      Autor: Lojda , Vít; Krejčiříková , Hana
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      Railway sleepers are traditionally made of hardwood, pre-stressed concrete or steel. However, emerging advanced materials, including polymers or composites, are investigated for a possible employment in the sleeper production. ...
    • TUNNEL PORTAL INSTABILITY IN LANDSLIDE AREA AND REMEDIAL SOLUTION: A CASE STUDY 

      Autor: Farhadi Ayoublou , Farhad; Taromi , Majid; Eftekhari , Abbas
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The construction of tunnel portals in mountainous or slope areas often involves problems, which are closely related to factors, such as slope topography, geology, geotechnics, construction geometry and the tunnel excavation ...
    • AUTOMATIC RECONSTRUCTION OF ROOF MODELS FROM BUILDING OUTLINES AND AERIAL IMAGE DATA 

      Autor: Hron , Vojtěch; Halounová , Lena
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The knowledge of roof shapes is essential for the creation of 3D building models. Many experts and researchers use 3D building models for specialized tasks, such as creating noise maps, estimating the solar potential of ...
    • INVERTED PENDULUM WITH LINEAR SYNCHRONOUS MOTOR SWING UP USING BOUNDARY VALUE PROBLEM 

      Autor: Koska , Lukáš; Jadlovská , Slávka; Vošček , Dominik; Jadlovská , Anna
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      Research in the field of underactuated systems shows that control algorithms which take the natural dynamics of the system’s underactuated part into account are more energy-efficient than those utilizing fully-actuated ...
    • STUDY OF SAMPLES STRENGTH OF MATERIAL FORMED BY THE PROCESSES OF COMPACTION EXTRUSION AND TUMBLING GRANULATION 

      Autor: Peciar , Peter; Ružinský , Radovan; Guštafík , Adam; Karľová , Mária; Čierny , Matúš; Fekete , Roman; Peciar , Marián
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      In a period of industrial expansion, protection of the environment is often neglected during the mass manufacture of products. One of the problems of our society that is necessary to face at present is the provision, ...
    • COMPENSATION OF SPRINGBACK IN LARGE SHEET METAL FORMING 

      Autor: Pačák , Tomáš; Tatíček , František; Valeš , Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      A precise production of sheet metal parts has always been a main goal in press shops. Highest quality demands are required especially in automotive production. Unfortunately, even today, the production is not optimal due ...
    • AUTOMATIC EEG CLASSIFICATION USING DENSITY BASED ALGORITHMS DBSCAN AND DENCLUE 

      Autor: Piorecký , Marek; Štrobl , Jan; Krajča , Vladimír
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      Electroencephalograph (EEG) is a commonly used method in neurological practice. Automatic classifiers (algorithms) highlight signal sections with interesting activity and assist an expert with record scoring. Algorithm ...
    • THE EFFECT OF SOIL GRAIN SIZE ON THE DEFORMATION PROPERTIES OF REINFORCED GEOCELL LAYERS 

      Autor: Luňáčková , Barbara; Mohyla , Marek; Pinka , Miroslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The effect of backfill material grading on the behaviour of geocell reinforced layers was experimentally investigated in this study. A series of loading tests were performed on a model with geocell reinforced and unreinforced ...
    • CYLINDRICAL ROLLER BEARING LUBRICATION REGIMES ANALYSIS AT LOW SPEED AND PURE RADIAL LOAD 

      Autor: Chmelař , Jakub; Petr , Karel; Mikeš , Petr; Dynybyl , Vojtěch
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      In this article, we describe a method of the roller bearing lubrication regime prediction. It uses a mathematical model of the bearing based on the standard ISO/TS 16281 to obtain the external load distribution over the ...
    • DYNAMIC SMART GRID COMMUNICATION PARAMETERS BASED COGNITIVE RADIO NETWORK 

      Autor: Haider Tarish, Haider; Muhsen Halboot, Dhiaa; Shahadi Ismael, Haider; See Hang, Ong; Elmenreich , Wilfried
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The demand for more spectrums in a smart grid communication network is a significant challenge in originally scarce spectrum resources. Cognitive radio (CR) is a powerful technique for solving the spectrum scarcity problem ...
    • JOINIG OF MG ALLOY AZ31B BY SELECTED TECHNOLOGIES 

      Autor: Kramár , Tomáš; Vondrouš , Petr; Jáňa , Miroslav; Kupec , Tomáš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      This contribution presents metallurgical joining of Mg alloy AZ 31B by several technologies - Friction Stir Welding - FSW, Laser Beam Welding - LBW, soldering and their mutual comparison. The difficulty of joining Mg alloys ...
    • GENERAL MODEL OF RADIATIVE AND CONVECTIVE HEAT TRANSFER IN BUILDINGS: PART II: CONVECTIVE AND RADIATIVE HEAT LOSSES 

      Autor: Ficker , Tomáš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The present paper represents the second part of the serial publication, which deals with convective and radiative heat transfers in buildings. The algebraic computational method for combined convective-radiative heat ...
    • GENERAL MODEL OF RADIATIVE AND CONVECTIVE HEAT TRANSFER IN BUILDINGS: PART I: ALGEBRAIC MODEL OF RADIATIVE HEAT TRANSFER 

      Autor: Ficker , Tomáš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      Radiative heat transfer is the most effective mechanism of energy transport inside buildings. One of the methods capable of computing the radiative heat transport is based on the system of algebraic equations. The algebraic ...