Now showing items 1-20 of 51

    • LEADTIME INVENTORY AND SAFETY STOCK CALCULATION IN JOBSHOP MANUFACTURING 

      Author: Sellitto Afonso, Miguel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The purpose of this article is to present a method for calculating the lead-time, the inventory, and the safety stock or buffer in job shop manufacturing, which are essentially stochastic variables. The research method is ...
    • EVALUATION OF SENSOR SIGNAL PROCESSING METHODS IN TERMS OF INFORMATION THEORY 

      Author: Flegner , Patrik; Kačur , Ján
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The paper deals with the examination of basic methods of evaluation of sensor signals in terms of the information content of the given method and the used technical means. In this respect, methods based on classical analog ...
    • A METHOD OF COMPLEX CALCULATION OF RATIONAL STRUCTURAL PARAMETERS OF RAILWAY HUMPS 

      Author: Panchenko , Sergii; Ohar , Oleksandr; Kutsenko , Maksym; Smachilo , Julia
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The article deals with a method of complex calculation of rational structural parameters of humps at classification yards. Unlike existing methods, this method allows an implementation of the technology of guided gravity ...
    • MULTIDIMENSIONAL HYBRID BOUNDARY VALUE PROBLEM 

      Author: Szajewska , Marzena; Tereszkiewicz Maria, Agnieszka
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The purpose of this paper is to discuss three types of boundary conditions for few families of special functions orthogonal on the fundamental region. Boundary value problems are considered on a simplex F in the real ...
    • MODIFICATION OF HIERARCHICAL AGGLOMERATIVE CLUSTERING WITH COMPLETE LINKAGE FOR OPTIMAL USAGE WITH PASSIVE OPTICAL NETWORKS 

      Author: Pehnelt , Tomáš; Lafata , Pavel; Nevosad , Marek
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      Today, passive optical networks (PONs) represent a modern solution for high-speed FTTx subscriber lines and networks. Due to the fact that optical fibres and cables are deployed in last-mile network segments. Unfortunately, ...
    • THE INFLUENCE OF SILVER NANOPARTICLES SYNTHESIS ON THEIR PROPERTIES 

      Author: Mražíková , Anna; Velgosová , Oksana; Kavuličová , Jana; Krum , Stanislav; Málek , Jaroslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      Application of green methods to replace physical and chemical methods for synthesis of silver nanoparticles (AgNPs) has become necessary not only from economic aspect but especially due to its significant impact on ecosystem. ...
    • ULTRAHIGHPERFORMANCE FIBREREINFORCED CONCRETE UNDER HIGHVELOCITY PROJECTILE IMPACT PART 2 APPLICABILITY OF PREDICTION MODELS 

      Author: Kravanja , Sebastjan; Sovják , Radoslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      Semi-infinite targets of Ultra-High-Performance Fibre-Reinforced Concrete with various fibre volume fractions were subjected to the high-velocity projectile impact using in-service bullets. In this study, a variety of ...
    • APPLICABILITY OF CARBON FIBRES IN REFRACTORY CEMENT COMPOSITES 

      Author: Holčapek , Ondřej; Reiterman , Pavel; Konvalinka , Petr
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The main objective of this article is to present the influence of high temperatures on mechanical properties of advanced refractory cement composite reinforced with carbon fibres. The presented material is suitable for ...
    • THE INFLUENCE OF CUTTING CONDITIONS ON THE SELECTED PARAMETERS OF THE SURFACE INTEGRITY 

      Author: Čep , Robert; Malotová , Šárka; Lichovník , Jiří; Hatala , Michal; Legutko , Stanislaw
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The article deals with an investigation of residual stress in machined surface under conditions of high-feed milling and determination of the influence of machining conditions on the size and types of stress resulting from ...
    • THE USE OF DEM SIMULATION FOR CONFIRMING THE PROCESS OF PARTICULATE MATERIAL MIXING 

      Author: Peciar , Peter; Macho , Oliver; Fekete , Roman; Peciar , Marián
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      At the present time in the research of particulate materials, computer methods that work independently with individual particles are coming to the forefront. One such method is the Discrete Element Method – DEM, which is ...
    • STABILITY OF SYNTHESIZED SILVER NANOPARTICLES IN CITRATE AND MIXED GELATIN/CITRATE SOLUTION 

      Author: Kavuličová , Jana; Mražíková , Anna; Velgosová , Oksana; Ivánová , Dana; Kubovčíková , Martina
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The study focuses on an investigation of the influence of both citrate and mixed gelatin/citrate as a reductant and stabilizer on the colloidal stability of silver nanoparticles (AgNPs)synthesized by a chemical reduction ...
    • H2 PERMEATION BEHAVIOR OF Cr2AlC AND Ti2AlC MAX PHASE COATED ZIRCALOY4 BY NEUTRON RADIOGRAPHY 

      Author: Tang , Chongchong; Grosse Karl, Mirco; Trtik , Pavel; Steinbrück , Martin; Stüber , Michael; Seifert , Hans Jürgen
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      Hydrogen uptake by nuclear fuel claddings during normal operation as well as loss of coolant during design basis and severe accidents beyond design basis has a high safety relevance because hydrogen degrade the mechanical ...
    • AUTOMATIC WINDING GENERATION USING MATRIX REPRESENTATION ANFRACTUS TOOL 10 

      Author: Ouamara , Daoud; Dubas , Frédéric; Benallal , Mohamed Nadjib; Randi , Sid Ali; Espanet , Christophe
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      This paper describes an original approach dealing with AC/DC winding design in electrical machines. A research software called “ANFRACTUS Tool 1.0”, allowing automatic generation of all windings in multi-phases electrical ...
    • COMPARISON OF ACTUAL GROUND SETTLEMENTS IN TUNNELLING EXCAVATION TO MODEL PREDICTIONS 

      Author: Saplachidi , Alexandra; Vougioukas , Emmanouil
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      It has been discovered that the underground structures are vulnerable to seismic phenomena mainly due to permanent ground deformations caused by earthquakes rather than the dynamic seismic movement itself. Several models ...
    • Editorial: FAREWELL AND WELCOME NEW EDITORINCHIEF 

      Author: Adlerová , Iva
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      My seven years with Acta Polytechnica ended on June 30. The opportunity to lead this journal from a local list of reviewed periodicals to the prestigious databases – Web of Science, Scopus, Inspec, CAS and more – was a ...
    • OPTIMALIZATION OF PHOTOREACTOR GEOMETRY FOR THE CULTIVATION OF CHLAMYDOMONAS REINHARDTII 

      Author: Fekete , Roman; Žáková , Terézia; Gabrišová , Ľudmila; Kotora , Peter; Peciar , Peter; Gahurová , Dominika; Slaninová , Miroslava
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      At the present time, a great attention is being paid to the use of algae. Algae can adapt to different conditions and can produce substances corresponding to responsible environments. The main problem in their cultivation ...
    • AUTOMATIC CLASSIFICATION OF POINT CLOUDS FOR HIGHWAY DOCUMENTATION 

      Author: Hůlková , Martina; Pavelka , Karel; Matoušková , Eva
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      Mobile laser scanning systems confirmed the capability for detailed roadway documentation. Hand in hand with enormous datasets acquired by these systems is the increase in the demands on the fast and effective processing ...
    • NUMERICAL SIMULATIONS OF STATIC STRENGTH OF NOVEL DENTAL IMPLANTS 

      Author: Řehounek , Luboš; Denk , František; Jíra , Aleš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      It is important to know the mechanical and micromechanical characteristics of conventional dental implants in order to design and develop novel dental implants and surface treatments that ensure a good biomechanical stability ...
    • APPLICATION OF CORROSION PLATES IN DRINKING WATER 

      Author: Skalický , Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      Drinking water has always been, is and will be a strategic raw material. Stopping corrosion or at least minimisation of its impact while keeping quality drinking water supplies is a big challenge for the future. That is ...
    • HYDROPHOBIC IMPREGNATION OF GEOPOLYMER COMPOSITE BY ETHOXYSILANES 

      Author: Mašek , Zdeněk; Diblikova , Linda
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      A geopolymer composite was impregnated by incorporating the hydrophobic alkyl group on the outer surface and in the inner structure of the geopolymer. Ethoxysilanes 1H,1H,2H,2H perfluoroctyltriethoxysilane and hexadecylt ...