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 9 of 9 for “"fiber dispersion"”.
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Cellulose fiber reinforced thermoplastic composites: Processing and Product Charateristics
Steam exploded fibers from Yellow Poplar (Liriodendron tulipifera) wood were assessed in terms of (a) their impact on torque during melt processing of a thermoplastic cellulose ester (plasticized CAB); (b) their fiber incorporation and dispersion characteristics in a CAB-based composite by SEM and …
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Nondestructive characterization methods for quality control of steel fiber reinforced concrete
… need to nondestructively characterize steel fiber dispersion and orientation within concrete wind-tower elements in order to ensure adequate structural capacity. This thesis documents the nondestructive testing research effort. A literature review was performed and preliminary laboratory …
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Pre-compensation of nonlinear distortion of a silicon microring modulator in short reach systems
… performance is investigated with and without fiber transmission for a 28 Gbaud PAM-4 signal. The systematic simulation includes drive signal generation, electrical to optical conversion by the MRM model, fiber transmission, optical to electrical conversion and receiver side digital signal …
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Fused Deposition Modeling of Composite Reinforced by Continuous Ultra-High Molecular Weight Polyethylene Fiber
… (FDM) of composites with compliant high-strength fibers couldexpand opportunities for the design and fabrication of complex compliant structures. However, this area of additive manufacturing (AM) is currently not reported in the open literature. This study pursued developing an approach for …
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Dynamic range of analog fiber optic links used in microcellular mobile radio applications
The use of analog fiber optic links for microcellular mobile radio communications has been the focus of considerable research recently. These systems have the advantages relative to coaxial cable of low noise and enormous bandwidth. Analog subcarrier multiplexing techniques are used for …
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Improvement of Fiber Optic System Performance by Synchronous Phase Modulation and Filtering at the Transmitter
… pulse train, which is shown to be resistant to fiber dispersion. The alternate-sign RZ pulse train is then amplitude modulated with the data before the transmission. Alternate signs between adjacent pulses makes this signal format robust to impairments caused by the optical fiber, similar to a …
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Limitations and Improvement of Subcarrier Multiplexed Systems over Optical Fiber
… a periodic power fading that is dependent on the fiber dispersion and subcarrier frequency. This power fading is manifested during the direct detection of the subcarrier system using a square-law photodetector. Using a modified optical local oscillator to coherently detect the subcarrier channel …
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High-Speed Quasi-Distributed Optical Fiber Sensing Based on Ultra-Weak Fiber Bragg Gratings
Invention of silica based optical fiber not only led to revolution in communication but also provided fundamental basis for many research areas. One example area is distributed optical fiber sensing, which has been attracting research interests for decades. Optical fiber sensors are immune to …
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High Speed Fiber Optic Spectrometer
… and mathematical model of a novel high speed fiber optic spectrometer (HSFOS). In addition, the performance analysis is conducted and preliminary experimental results are listed and discussed. Such a spectrometer is highly desired by the ever-increasing applications of fiber optic sensors. In …