We investigate numerically models of static spherically symmetric boson-fermion stars in the scalar-tensor theory of gravity with a massive dilation field. The proper mathematical model of such stars is interpreted as...
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Rapid development of quantum computing technology has led to a wide variety of sophisticated quantum devices. Benchmarking these systems becomes crucial for understanding their capabilities and paving the way for futu...
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The formulation of Type A uncertainty in the GUM does not include the necessary assumptions. The paper reviews the common set of four assumptions and, in particular, the replacing the identity of distributions (i. d.)...
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The formulation of Type A uncertainty in the GUM does not include the necessary assumptions. The paper reviews the common set of four assumptions and, in particular, the replacing the identity of distributions (i. d.) by a more general assumption of equivalence of observations. This assumption shows several advantages including its more natural relation to the measurement conditions. Possibilities of validating the assumptions, by an analysis of experiment and using the statistical tests, are briefly discussed.
Radiation damage is nowadays the most serious problem in silicon particle detectors placed in the very harsh radiation environment. This problem will be even more pronounced after the LHC Upgrade because of extremely ...
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Radiation damage is nowadays the most serious problem in silicon particle detectors placed in the very harsh radiation environment. This problem will be even more pronounced after the LHC Upgrade because of extremely strong particle fluences never encountered before. In this review, a few aspects of radiation damage in silicon trackers are presented. Among them, the change in the silicon lattice and its influence on the detector performance are discussed. Currently applied solutions and the new ideas for future experiments will be also shown. Most of the results presented in this summary were obtained within the RD50 Collaboration.
The LHCb detector, with its excellent momentum resolution and flexible trigger strategy, is ideally suited for measuring particles produced exclusively. In addition, a new system of forward shower counters has been in...
The paper presents a comprehensive, newly developed software – poROSE(poROus materials examination SoftwarE) for the qualitative and quantitative assessment of porous materials and analysis methodologies developed by...
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The paper presents a comprehensive, newly developed software – poROSE(poROus materials examination SoftwarE) for the qualitative and quantitative assessment of porous materials and analysis methodologies developed by the authors as a solution for emerging challenges. A low porosity rock sample was analyzed and thanks to the developed and implemented methodologies in poROSE software, the main geometrical properties were calculated. A tool was also used in preprocessing part of the computational analysis to prepare a geometrical representation of the porous material. The basic functions as elimination of blind pores in the geometrical model were completed and the geometrical model was exported for CFD software. As a result, it was possible to carry out calculations of the basic properties of the analyzed porous material sample. The developed tool allows to carry out quantitative and qualitative analysis to determine the most important properties characterized porous materials. In presented tool the input data can be images from X-ray computed tomography(CT), scanning electron microscope(SEM) or focused ion beam with scanning electron microscope(FIB-SEM) in grey level. A geometric model developed in the proper format can be used as an input to modeling mass, momentum and heat transfer, as well as, in strength or thermo-strength analysis of any porous materials. In this example, thermal analysis was carried out on the skeleton of rock sample. Moreover, thermal conductivity was estimated using empirical equations.
The YBa2Cu3Oδ films were obtained directly on silver substrates by the sedimentation processes. The thicknesses of these films are of the order of several tens μ. The temperature dependences of the AC susceptibility...
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Non-invasive brain stimulation (NIBS) techniques, such as transcranial infrared (tNIR) stimulation, offer promising advancements in sleep monitoring and regulation. To enhance sleep stage classification without relyin...
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This paper introduces a study on the biometrics from its accuracy problems point of view. The concerns about the errors and their sources in security, forensic and court applications that face researchers in their stu...
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This paper discusses the prospects of using layered graphs for eye-tracking video game analyzing especially serious game, where player attention affects learning activity. It is shown how the user strategy can be desc...
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This paper discusses the prospects of using layered graphs for eye-tracking video game analyzing especially serious game, where player attention affects learning activity. It is shown how the user strategy can be described by graph structure. Eye tracking system is used for examination of users attention and interest and perception related to understanding and recall. Comparing user decisions with eye-tracking data give us possibilities to make correlations between users perception of object shown during the gameplay and his decisions. Visual elements of game scene impact on users decision and can support or disturb learning process. Two types of games were analysed for this paper: adventure game and serious game based on occupational safety and health.
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