Prohlížení Acta Polytechnica dle názvu

Zobrazují se záznamy 104-123 z 880

    • APPLICATION OF DIMENSIONAL ANALYSIS IN HEAT LOSS DETERMINING IN DISTRICT HEATING SYSTEMS 

      Autor: Čarnogurská , Mária; Dobáková , Romana; Příhoda , Miroslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
      Existing procedures for determining the heat loss in heat distribution use balance relations, or rather they are based on the theory of heat and mass transfer. Dimensional analysis enables a new point of view that demonstrated ...

    • APPLICATION OF FMEA METHODOLOGY FOR CHECKING OF CONSTRUCTION’S PROJECT DOCUMENTATION AND DETERMINATION OF THE MOST RISK AREAS 

      Autor: Tuháček , Martin; Franek , Ondřej; Svoboda , Pavel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
      The article deals with an innovative method designed to check project documentation of buildings at the design stage, specifically exploring the possibility to implement FMEA and PDCA methodologies. Based on performed ...

    • APPLICATION OF GLOBAL OPTIMIZATION TO PREDICT STRAINS IN RC COMPRESSED COLUMNS 

      Autor: Lechman, Marek; Stachurski, Andrzej
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      In this paper, the results of an application of global and local optimization methods to solve a problem of determination of strains in RC compressed structure members are presented. Solutions of appropriate sets of nonlinear ...

    • Application of Induction Heating for Brazing Parts of Solar Collectors 

      Autor: Demianová , Kristína; Ožvold , Milan; Turňa , Milan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper reports on the application of induction heating for brazing parts of solar collectors made of Al alloys. The tube-flange joint is a part of the collecting pipe of a solar collector. The main task was to design ...

    • Application of Portable Force Platforms Equipped with a Device for Measuring Position and Orientation 

      Autor: Kutílek , Patrik; Vítečková , Slávka; Svoboda , Zdeněk; Hejda , Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      With the development of modern technology for studying the movements of the human body, a large number of new measurement techniques are being applied. However, a complex and expensive device is not always the best one for ...

    • APPLICATION OF RULED SURFACES IN FREEFORM AND GEAR METROLOGY 

      Autor: Linkeová, Ivana; Zelený, Vít
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      An application of two ruled surfaces (i.e., surfaces generated by a motion of a straight line), a surface of hyperbolic paraboloid and a tangent surface of a cylindrical helix in freeform and gear metrology is introduced ...

    • Application of strut-and-tie models for assessing RC half-joints not complying with current code specifications 

      Autor: Kotsovou, Gregoria; Vougioukas, Emmanouil; Cotsovos, Demetrios M.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The work described is concerned with an investigation of the effectiveness of the use of strut-and-tie models for the structural assessment of half joints. Such elements form a part of many existing bridges which, although ...

    • Application of the Source-Jerk method using a neutron generator in a subcritical reactor 

      Autor: Rataj, Jan; Mátl, Jakub; Suk, Pavel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      This paper describes the application of the Source-Jerk method using a neutron generator in the VR-1 reactor. The experiments were carried out on a shutdown reactor with subcriticality greater than -10 βeff. A D-D neutron ...

    • APPLICATION OF THE TEMPERATURE OSCILLATION METHOD IN HEAT TRANSFER MEASUREMENTS AT THE WALL OF AN AGITATED VESSEL 

      Autor: Solnař , Stanislav; Dostál , Martin; Petera , Karel; Jirout , Tomáš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The Temperature Oscillation Infra-Red Thermography (TOIRT) was used to measure convective heat transfer coefficients at the inner vertical wall of an agitated and baffled vessel. Two impellers were used: an axial six-blade ...

    • APPROACHES TO THE GAS CONTROL IN UCG 

      Autor: Kačur , Ján; Kostúr , Karol
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      Underground Coal Gasification represents an alternative for conventional coal mining. This technology is also less expensive than traditional mining. It is expected that coal will be an important energy source in the coming ...

    • ARGO-YBJ: STATUS AND HIGHLIGHTS 

      Autor: Di Sciascio, Giuseppe
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The ARGO-YBJ experiment has been gathering data steadily since November 2007 at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300m a.s.l., 606 g/cm2). ARGO-YBJ is confronting various open problems in Cosmic Ray ...

    • ARTIFICIAL NEURAL NETWORK APPROACH FOR THE IDENTIFICATION OF CLOVE BUDS ORIGIN BASED ON METABOLITES COMPOSITION 

      Autor: Rustam; Gunawan, Agus Yodi; Kresnowati, Made Tri Ari Penia
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
      This paper examines the use of an artificial neural network approach in identifying the origin of clove buds based on metabolites composition. Generally, large data sets are critical for an accurate identification. Machine ...

    • Assessing the efficacy of flat-plate solar collectors using nanofluids in the climatic context of Kirkuk city, Iraq 

      Autor: Hussein, Adnan M.; Mohammed Ali, Hussein Hayder; Ali, Zahraa
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)
      Solar energy is a key renewable energy source. Research and development have focused on enhancing the heat transfer coefficient, heat gain, and practical efficiency of solar systems. The aim of this study is to evaluate ...

    • Assessment of external interface of autonomous vehicles 

      Autor: Orlický, Adam; Mashko, Alina; Mík, Josef
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      The paper deals with the problem of a communication interface between autonomous vehicles (AV) and pedestrians. The introduced methodology for assessing new and existing e-HMI (external HMI) contributes to traffic safety ...

    • ASSESSMENT OF POSTURAL INSTABILITY IN PATIENTS WITH A NEUROLOGICAL DISORDER USING A TRI-AXIAL ACCELEROMETER 

      Autor: Hanakova , Lenka; Socha , Vladimir; Schlenker , Jakub; Cakrt , Ondrej; Kutilek , Patrik
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
      Current techniques for quantifying human postural stability during quiet standing have several limitations. The main problem is that only two movement variables are evaluated, though a better description of complex ...

    • Assessment of structures repeatedly exposed to thermal loading and extinguishing water: a case study of a firefighting training facility 

      Autor: Müller, Petr; Benýšek, Martin; Štefan, Radek; Holan, Jakub; Košťálová, Šárka
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      When designing a new structure or assessing an existing one, the risk of fire and its effect on the structure must be considered. Structures are usually assessed for fire resistance at the design stage – i.e. before the ...

    • Assessment of the effectiveness of lubrication of Ti-6Al-4V titanium alloy sheets using radial basis function neural networks 

      Autor: Trzepieciński, Tomasz; Szpunar, Marcin
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      The aim of the research presented in this article was to determine the value of the friction coefficient using a simple tribological test and to build an empirical model of friction with the use of radial basis function ...

    • ASTRONOMICAL GLASS PLATE NEGATIVES: MONITORING OF EMULSION LAYER DETERIORATION 

      Autor: Miskova , L.; Novák , P.; Hudec , R.; Novotná , M.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
      One of the techniques for making photographic negatives most used in the history of photography were gelatin glass plates. This technique was used not only in the artistic field but also and mainly in the scientific field. ...

    • ASTRONOMICAL PLATE ARCHIVES AND SUPERMASSIVE BLACK HOLE BINARIES 

      Autor: Hudec, René
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The recent extensive digitisation of astronomical photographic plate archives, the development of new dedicated software and the use of powerful computers have for the first time enabled effective data mining in extensive ...

    • Astroparticle Physics Today 

      Autor: Giovannelli , Franco
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      In this short review paper I will draw attention to the most important steps made in the past decade toward a better understanding of the physics governing our Universe. The results that I will discuss are drawn from the ...