Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"light guides"”.
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Behavior of Light in a Photobioreactor and Design of Light Guides
… in a photobioreactor system; demonstrate the light activity in a flat-plate photobioreactor; and design the light channeling system. Generally, microalgae are cultivated in open ponds and in closed photobioreactor systems. In open ponds, the productivity of microalgal biomass is very low, due …
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Light manipulation with photonic fibers and optical light guides : dynamic structural color and light distribution in microalgae cultures
… photonic fibers represent versatile systems for light manipulation. They are used to guide, reflect, emit, and absorb light, and can be designed to alter the light's spectral composition in any of these light-matter interactions. Additional functionality arises from the combination of these …
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Efficient Use of Photons in a Photobioreactor
… be developed, three main elements of the system (light, photosynthetic microorganism and nutrients) need to be optimized incorporating concepts from multiple disciplines. This dissertation deals only with one main element, light optimization. To understand light optimization, an understanding of …
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Imaging with parabolic refractive X-ray lenses
… magnifying it by means of an optic for visible light gives CCD-images with some micrometers resolution. For more and more areas as, for instance, material science, geophysics, plant physiology, analysis of art objects, and also medical research a higher lateral resolution is needed. Using x-ray …
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Search for cosmic-ray antiparticles with bolloon-borne and space-borne experiments
… The project allots long duration balloon flights at one of Earth's poles at an altitude of 40km. The detector consists of a transition radiation detector, a time of flight system, a combined silicon and scintillating fiber tracker and an electromagnetic calorimeter. All detectors are placed …