Recent Submissions

  • OPTIMIZATION OF COMPUTATIONAL BURDEN OF THE POINT INFORMATION GAIN 

    Author: Urban , Jan; Rychtáriková , Renata; Macháček , Petr; Štys , Dalibor; Urbanová , Pavla; Císař , Petr
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
    We developed a method of image preprocessing based on the information entropy, namely, on the information contribution made by each individual pixel to the whole image or to image’s part (i.e., a Point Information Gain; ...
  • APPLICABILITY VERIFICATION OF AUTOFORM SOFTWARE FOR FEM SIMULATION OF MECHANICAL FIXATION OF HEMMED JOINTS 

    Author: Chrášťanský , Lukáš; Šanovec , Jan; Martawirya , Yatna Yuwana; Valeš , Michal
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
    This paper deals with the problematics of fixation of hemmed joints, especially with one specific mechanical method how to ensure a dimensional stability of a hemmed joint of car-body parts, such as doors, bonnet and trunk ...
  • THE INFLUENCE OF BASALT MINERALS AS CEMENT SUBSTITUTION MATERIALS IN MORTAR 

    Author: Amin , Muhammad; Birawidha , David Candra; Isnugroho , Kusno; Hendronursito , Yusup; Sumardi , Slamet; Ario , Septa; Syafriadi , Syafriadi; Al-Muttaqii , Muhammad
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
    This study was conducted to determine the effect of the concentration of basalt as a cement substitution material in mortar. Basalt was analysed by XRD and XRF. From the XRD results, the diffractogram shows the dominant ...
  • IMPORTANCE OF A TYPE OF GATING SYSTEM IN INVESTMENT CASTING TECHNOLOGY 

    Author: Vrátný , Ondřej; Herman , Aleš
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
    At present, there is an increasing demand for the Investment casting technology. It is necessary to ensure their dimensional accuracy as well as internal quality and their desired macrostructure and microstructure. This ...
  • PNEUMATIC SYSTEMS FOR AUTOMATIC SORTING EQUIPMENT 

    Author: Onderová , Iveta; Čačko , Viliam; Kolláth , Ľudovít; Šooš , Ľubomír; Smelík , Andrej; Varga , Alexander
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
    The aim of the research work was focused on a research of manipulators design using suction grippers. The results of the research can be applied in the design of jigs - manipulators for handling thin sheets. The FME analysis ...
  • STUDY OF SYNTHETIC DYE REMOVAL USING FENTON/TiO2, FENTON/UV, AND FENTON/TiO2/UV METHODS AND THE APPLICATION TO JUMPUTAN FABRIC WASTEWATER 

    Author: Agustina , Tuty Emilia; Teguh , Dedi; Wijaya , Yourdan; Mermaliandi , Febrian; Bustomi , Ahmad; Manalaoon , Jantan; Theodora , Gita; Rebecca , Tessa
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
    Synthetic dyes were commonly used in textile industries such as Jumputan fabric industries in South Sumatera. Most of these industries were categorized as a home industry without a wastewater treatment plant, so the ...
  • ANALYSIS OF THE PROPERTIES OF AW2099 ALUMINIUM-LITHIUM ALLOY WELDED BY LASER BEAM WITH AW5087 ALUMINIUM-MAGNESIUM FILLER MATERIAL 

    Author: Sahul , Miroslav; Sahul , Martin; Pašák , Matej; Marônek , Milan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
    EN AW2099 aluminium lithium alloy, 2.0mm in thickness, was used as an experimental material. EN AW2099 belongs to the 3rd generation of aluminium lithium alloys. The third generation was developed to improve the disadvantages ...
  • COMPARATIVE STUDY AND EMPIRICAL MODELLING OF PULVERIZED COCONUT SHELL, PERIWINKLE SHELL AND PALM KERNEL SHELL AS A POZZOLANS IN CONCRETE 

    Author: Ikponmwosa , Efe Ewaen; Ehikhuenmen , Samuel Onosedeba; Irene , Karieren Kate
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
    Infrastructural development across the world is fast growing due to the rapid growth in population. This has resulted in consequently creating an increase in the demand for construction materials, especially cement. This ...
  • 3-D MODELING OF HEAT AND MASS TRANSFER PROCESS DURING THE COMBUSTION OF SOLID FUEL IN A SWIRL FURNACE 

    Author: Askarova , Aliya; Bolegenova , Saltanat; Maximov , Valeriy; Bolegenova , Symbat; Nugymanova , Aizhan; Šafařík , Pavel
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
    In this work, a comprehensive study of thermal processes and aerodynamic and concentration characteristics of the combustion chamber of the boiler BKZ-75 of the Shakhtinskaya thermal power plant (Kazakhstan) are presented. ...
  • GAS-PUFF TARGET FOR LASER-PRODUCING PLASMA SXR SOURCE 

    Author: Salačová , Šárka; Wachulak , Przemyslaw; Tatíček , Milan; Vrbová , Miroslava
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
    Mass density spatial distributions of selected gas-puff targets have been determined by radiography, using quasi-monochromatic radiation at a wavelength of 13 nm. Results of spatial distributions of mass densities at various ...
  • A NEW AND ADAPTIVE SECURITY MODEL FOR PUBLIC COMMUNICATION BASED ON CORRELATION OF DATA FRAMES 

    Author: 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 

    Author: 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 

    Author: 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 

    Author: 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 

    Author: 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 

    Author: 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 

    Author: 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 

    Author: 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 

    Author: 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 

    Author: 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 ...

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