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Wyszukujesz frazę "Arrangement" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Influence of marker arrangement on positioning accuracy of objects in a virtual environment
Autorzy:
Górski, F.
Wichniarek, R.
Kuczko, W.
Zawadzki, P.
Buń, P.
Powiązania:
https://bibliotekanauki.pl/articles/102454.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
marker arrangement
positioning
virtual environment
Opis:
The paper presents results of studies undertaken by the authors, aimed at determination of character of influence of marker arrangement on real-time measurement of position and orientation of an object, using an exemplary optical tracking system PST-55. Such a system can be used for interaction in immersive Virtual Reality applications. To ensure better immersion of a user in a virtual environment, it is necessary to directly translate its actions into 3D image presented by the VR application. It is possible, among other things, by the application of systems for tracking user’s movements. During the presented studies, an object with infrared-reflective markers deployed on its surface was placed in the center of a rotary table, then it was measured by the tracking system to determine the influence of the object angular position on the accuracy of determination of its position and orientation by the examined device. The measurements were performed for several different arrangements of markers, to formulate guidelines for their deployment on objects used for work in a virtual environment.
Źródło:
Advances in Science and Technology. Research Journal; 2015, 9, 28; 112-119
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of the tool surface texture on friction and the surface layers properties of formed component
Autorzy:
Šugárová, Jana
Šugár, Peter
Frnčík, Martin
Necpal, Martin
Moravčíková, Jana
Kusý, Martin
Powiązania:
https://bibliotekanauki.pl/articles/102207.pdf
Data publikacji:
2018
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
laser surface texture
dimple shape
dimple arrangement
friction coefficient
surface integrity
tekstura powierzchni lasera
kształt wgłębienia
rozmieszczenie wgłębne
współczynnik tarcia
integralność powierzchni
Opis:
The morphological texturing of forming tool surfaces has a high potential to reduce friction and tool wear and also has an impact on the surface layers properties of formed material. In order to understand the effect of different types of tool textures, produced by nanosecond fibre laser, on the tribological conditions at the interface tool-formed material and on the integrity of formed part surface layers, the series of experimental investigations have been carried out. The coefficient of friction for different texture parameters (individual feature shape, including the depth profile of the cavities and orientation of the features relative to the material flow) was evaluated via a Ring Test and the surface layers integrity of the formed material (surface roughness and subsurface micro hardness) was also experimentally analysed. The results showed a positive effect of surface texturing on the friction coefficients and the strain hardening of test samples material. Application of surface texture consisting of dimple-like depressions arranged in radial layout contributed to the most significant friction reduction of about 40%. On the other hand, this surface texture contributed to the increase of surface roughness parameters, Ra parameter increased from 0.49 μm to 2.19 μm and the Rz parameter increased from 0.99 μm to 16.79 μm.
Źródło:
Advances in Science and Technology. Research Journal; 2018, 12, 1; 181-193
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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