Zobrazují se záznamy 750-769 z 1904

    • GALACTIC AND EXTRAGALACTIC SUPERNOVA REMNANTS AS SITES OF PARTICLE ACCELERATION 

      Autor: Sasaki, Manami
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Supernova remnants, owing to their strong shock waves, are likely sources of Galactic cosmic rays. Studies of supernova remnants in X-rays and gamma rays provide us with new insights into the acceleration of particles to ...
    • GALACTIC CENTER MINISPIRAL: INTERACTION MODES OF NEUTRON STARS 

      Autor: Zajacek , Michal; Karas , Vladimir; Kunneriath , Devaky
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
      Streams of gas and dust in the inner parsec of the Galactic center form a distinct feature known as the Minispiral, which has been studied in radio waveband as well as in the infrared wavebands. A large fraction of the ...
    • Gamma-rays, Neutrinos and Particle Astronomy as Messengers of the Universe 

      Autor: Spurio, Maurizio
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Observations of charged cosmic-rays, γ-rays and neutrino are possible thanks to the availability of new detectors coming from technologies typical of experimental particle physics. In conjunction with more traditional ...
    • GAS-PUFF TARGET FOR LASER-PRODUCING PLASMA SXR SOURCE 

      Autor: 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 ...
    • Gated Graphene Electrical Transport Characterization 

      Autor: Náhlík , Josef; Janoušek , Michal; Šobáň , Zbyněk
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Graphene is a very interesting new material, and promises attractive applications in future nanodevices. It is a 2D carbon structure with very interesting physical behavior. Graphene is an almost transparent material that ...
    • GENERAL CALCULATION OF WINDING FACTOR FOR MULTI-PHASE/-LAYER ELECTRICAL MACHINES IRRESPECTIVE OF POLES NUMBER 

      Autor: Ouamara , Daoud; Dubas , Frédéric; Randi Ali, Sid; Benallal Nadjib, Mohamed; Espanet , Christophe
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      In this paper, a method to calculate the winding factor by only considering stator parameters without the rotor ones is developed. This is interesting because it allows the separation of the stator and rotor design, unlike ...
    • 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 ...
    • 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 quality of urban greenery as a city indicator in Brazil in comparison with central Europe 

      Autor: Larrubia de Almeida Júnior, Jobson; Pondělíček, Michael
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)
      The evidence for climate change and its associated consequences, such as severe droughts, floods, and storms, exposed the need to investigate the ways that countries can cope with them, especially Brazil, which is a ...
    • Generalized Continuity Equation for Quasi-Hermitian Hamiltonians 

      Autor: Hammou , Amine B.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The continuity relation is generalized to quasi-Hermitian one-dimensional Hamiltonians. As an application we show that the reflection and transmission coefficients computed with the generalized current obey the conventional ...
    • Generalized three-body harmonic oscillator system: ground state 

      Autor: Escobar-Ruiz, Adrian M.; Montoya, Fidel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      In this work we report on a 3-body system in a d−dimensional space ℝd with a quadratic harmonic potential in the relative distances rij = |ri −rj| between particles. Our study considers unequal masses, different spring ...
    • Generation of LDPM structure formed by Voronoi cells 

      Autor: Vozáb, Jan; Vorel, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      A preliminary study of an approach to internal structure generation used in lattice discrete particle models (LDPMs) [1]. The presented method used for particle generation and placement is intended to help realistically ...
    • Generation of mesostructure for lattice discrete particle model 

      Autor: Vozáb, Jan; Vorel, Jan; Marcon, Marco; Podroužek, Jan; Wan-Wendner, Roman
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      A preliminary study of two approaches for the internal structure generation utilized in the lattice discrete particle models (LDPM) [1] is presented. The presented methods used for particle generation and placement are ...
    • GENERATION OF TRANSPORT PATHS IN FRACTURED POROUS MEDIA 

      Autor: Říha , Jakub; Královcová , Jiřina
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      In this article, a method for generation of transport paths in combined equivalent porous media / discrete fracture network computational meshes is proposed as an alternative to a particle tracking method. It is based on ...
    • Genetic algorithms to determine the optimal parameters of an ensemble local mean decomposition 

      Autor: Silva, Willian T. F. D.; Borges, Filipe D. D. M.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      An optimization method for an ensemble local mean decomposition (ELMD) parameters selection using genetic algorithms is proposed. The execution of this technique depends heavily on the correct choice of the parameters of ...
    • Geometric approach to solving inverse kinematics of six DOF robot with spherical joints 

      Autor: Hadidi, Nacer; Bouaziz, Mohamed; Mahfoudi, Chawki; Zaharuddin, Mohamed
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      Inverse kinematics is a fundamental concept in robotics that plays a crucial role in a robot’s ability to perform tasks. In this contribution, we propose a novel geometric approach based on vector calculus to solve the ...
    • Geometrical Modeling of Concrete Microstructure for the Assessment of ITZ Percolation 

      Autor: Rypl , Daniel; Bým , Tomáš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Percolation is considered to be a critical factor affecting the transport properties of multiphase materials. In the case of concrete, the transport properties are strongly dependent on the interfacial transition zone ...
    • GEOMETRICAL OPTIMIZATION OF DENTAL IMPLANTS WITH REGARD TO OSSEOINTEGRATION 

      Autor: Řehounek, Luboš; Denk, František; Jíra, Aleš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      A newly developed reference dental implant specimen type was subjected to numerical simulations of osseointegration. The goal of these tests was to optimize the geometry of the implant so as to reduce local stress ...
    • GEOMETRY AND MECHANICAL PROPERTIES OF A 3D-PRINTED TITANIUM MICROSTRUCTURE 

      Autor: Řehounek, Luboš; Hájková, Petra; Vakrčka, Petr; Jíra, Aleš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      Construction applications sometimes require use of a material other than construction steel or concrete – mainly in cases, where strength to weight ratio needs to be considered. A suitable solution to this problem are ...
    • Geophysics for underground engineering 

      Autor: Bláha, Pavel; Duras, Roman; Gebauer, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      The growth of underground engineering brought a need for the use of geophysical methods for research of underground constructions rather different in approach compared to that of civil engineering. These changes relate to ...