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 12 of 12 for “"Fiber Design"”.
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The Characterization of Hemodialysis Membranes in Miniaturized Dialyzers
… representing hemodialysis membrane and fiber design. We evaluated internal filtration, water permeability, sieving coefficient (SC) and clearance of solutes, in the Medium Cut Off (MCO) and conventional High Flux (HF) miniaturized dialyzers. We found statistically significant differences …
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Novel approaches to power scaling of single-frequency photonic crystal fiber amplifiers
… ytterbium-doped photonic crystal fiber amplifiers. The objective of this effort is to identify issues which limit power scaling and develop novel techniques to overcome these limitations. Historically, stimulated Brillouin scattering (SBS) has been the primary obstacle in the …
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Multimaterial, multifunctional fiber-based designs for integration into minimally invasive and wearable, translatable medical devices
Fiber-based medical devices have the potential to contribute to both research and clinical applications through their multifunctionalities, material properties, compact sizes, and customizable geometries. This thesis discusses current developments and testing of such devices. A minimally invasive …
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From elastic electrodes to fabric systems
… or even system level functions within a single fiber. Harnessing thermal drawing, significant developments in fiber functionality have been achieved over the last couple of decades. However, certain essential properties of device containing fibers still require attention. In particular, yarns in …
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Design and Evaluation of Off-centered Core Fiber for Gas Sensing
… in Underground Mines. Among Those Sensing Areas, Fiber-optic Sensors Have Drawn Considerable Attention Because of Its Small Size, Light Weight, High Sensitivity, and Remote Sensing Capability. However, Current Fiber-optic Gas Sensing Techniques Have Several Limitations on Their Potential for …
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Simulating Properties of Scintillating Integrated Fibers as Conformal Radiation Detectors
Advancements in fabricating multifunctional fibers with embedded integrated circuits have the potential to create fibers with novel capabilities, including radiation detection when combined with elements of scintillating fiber detectors. By sensing and processing scintillation light within the …
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Low Nonlinearity Optical Fibers for Broadband and Long-Distance Communications
… dispersion-shifted and dispersion-flattened fibers for broadband and long haul applications is presented. The refractive index profiles of these fibers assume a depressed-core multi-clad geometry in order to achieve effective-areas much larger than those in conventional optical fibers. A …
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Optical Fibers for Space-Division Multiplexed Transmission and Networking
Single-mode fiber transmission can no longer satisfy exponentially growing capacity demand. Space-division multiplexing (SDM) appears to be the only way able to dramatically improve the transmission capacity, for which, novel optical fiber is one of the key technologies. Such fibers must possess …
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Beiträge zur Dispersionskompensation basierend auf der Modenkonversion in höhere Moden und der Ausbreitung dieser Moden in Lichtwellenleitern
… is the major limiting factor in high data rate fiber optical transmission systems. Dispersion compensation techniques have to be deployed in order to increase the data bandwidth or the reach of fiber optical links. Typically fixed value dispersion compensators are used. However at channel bit …
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Analysis and design of broadband single-mode multi-clad fibers
… to the study of dispersion-flattened single-mode fibers which offer a high transmission capacity with low losses through a wide range of wavelengths. However, the existing designs are sensitive to bending and manufacturing tolerances, and are not truly single-mode at most wavelengths of interest. …
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Analysis and optimization of a new accident tolerant fuel called fuel-in-fibers
… of a new accident tolerant fuel, Fuel-in-Fibers (F-in-F) concept. The Fuel-in-Fibers concept was created by Free Form Fibers, a laser chemical vapor deposition direct manufacturing company. It aims to combine the same robust fission product retention and high temperature stability as the …
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Block Copolymer Derived Porous Carbon Fiber for Energy and Environmental Science
… shortcomings in effective and efficient material design. Practical, high-performing, and economical materials are needed in several key application areas, including energy storage, energy harvesting, electronics, catalysis, and water purification. Further development into high-performing and …