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Wyniki wyszukiwania dla: LENSES

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Wyniki wyszukiwania dla: LENSES

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Wyniki wyszukiwania dla: LENSES

  • Thermal lenses caused by any acoustic source.

    Publikacja

    Nieliniowe straty energii fali akustycznej doprowadzają do powstania obszarów ogrzanych, to znaczy obszarów o innej prędkości fali akustycznej niż pozostała przestrzeń. Soczewki termiczne wywoływane przez propagację fal akustycznych okresowych i nieokresowych są rozpatrywane. Przedstawiono ilustrację obliczeń numerycznych.

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  • The Creation of an Antimicrobial Coating on Contact Lenses by The Use of Nanocopper

    The aim of the research was to creation an antimicrobial coating on contact lens and examine the ability of copper nanoparticles to decrease microbial adhesion and prevent the growth of bacteria. The creation was based on the immersion method in solution with dispersed nanoparticles of copper at concentration 200 pm. There were evaluated follows factors: time of immersion and base to dispersed nanoparticles. Three solutions: ethyl...

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  • The finite-difference simulation of x-rays propagation through a system of lenses

    Publikacja

    - Rok 2014

    The propagation of X-ray waves through an optical system consisting of 33 aluminum X-ray refractive lenses is considered. For solving the problem, a finite-difference method is suggested and investigated. It is shown that very small steps of the difference grid are necessary for reliable computation of propagation of X-ray waves through the system of lenses. It is shown that the wave phase is a function very quickly increasing...

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  • The finite difference methods of computation of X-rays propagation through a system of many lenses

    Publikacja

    - Rok 2016

    The propagation of X-ray waves through an optical system consisting of many beryllium X-ray refrac- tive lenses is considered. In order to calculate the propagation of electromagnetic in the optical sys- tem, two differential equations are considered. First equation for an electric field of a monochromatic wave and the second equation derived for complex phase of the same electric The propagation of X-ray waves through an optical system...

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  • A high-accuracy method of computation of x-ray waves propagation through an optical system consisting of many lenses

    Publikacja

    - TASK Quarterly - Rok 2016

    The propagation of X-ray waves through an optical system consisting of many X-ray refractive lenses is considered. Two differential equations are contemplated for solving the problem for electromagnetic wave propagation: first – an equation for the electric field, second – an equation derived for a complex phase of an electric field. Both equations are solved by the use of a finite-difference method. The simulation error is estimated...

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