Acta Polytechnica. 2018, vol. 58, no.6

 

Now showing items 1-10 of 10

    • 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. ...

    • 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 ...

    • 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 ...

    • 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 ...

    • 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 ...

    • ULTRA-HIGH-PERFORMANCE FIBRE-REINFORCED CONCRETE UNDER HIGH-VELOCITY 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 ...

    • LEAD-TIME, INVENTORY, AND SAFETY STOCK CALCULATION IN JOB-SHOP 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 ...