Index Catalog // ScholarsArchive@OSU

Grating-tuned external cavity diode lasers

Creator:: Falconer, Beate Stephan
Abstract:: Diode lasers have many advantages such as small size, high efficiency and small angular dispersion of the collimated beam. However they also have some problems like lack of frequency stability. They can not be tuned in wavelength. An external cavity can solve these problems and decrease the laser linewidth. To...
Resource Type:: Masters Thesis
Full Text:: Table 4.4.1.1.: Bandwidths of LD 12, EC 12, LD 12c and EC 12c. 52 Table 4.4.1.2.: Tuning ranges of LD

Noise measurements, models and analysis in GaAs MESFETs circuit design

Creator:: Yan, Kai-tuan Kelvin
Resource Type:: Dissertation
Full Text:: (H z) N oi se sp ec tru m of in te gr at ed G aA s de pl et io n m od e M ES FE Ts 1

802.11 Channel Switching for High-Definition Video Streaming

Creator:: Sullivan, Erin
Abstract:: As screen resolution and video decoding capability have increased, high-definition (HD) video in resolutions as high as 1920 x 1080 is rapidly becoming the standard. Ad-hoc streaming of HD video over 802.11 wireless networks, e.g., streaming from a mobile device to a television, is convenient for users, but is hampered...
Resource Type:: Masters Thesis
Full Text:: Two methods of error concealment (EC). . . . . . . . . . . . . . . . . . . 8 2.5 Carrier sensing

Electrical properties of GaAs FET structures

Creator:: Yang, Fanling Hsu
Abstract:: The electrical properties of ion-implanted GaAs FET channels are investigated by two methods. First, the channel current (I) as a function of voltage (V) is examined at different temperatures and using different voltage ramp rates. The standard FET I-V curve, which can be observed on a commercial curve tracer, is...
Resource Type:: Dissertation
Full Text:: / )1/2 exp (a/K) c o 11 (2.2a) (2.2b) and AE o = Ec Et is the energy difference between

Electrical characterization and aging studies of ALE ZnS:Mn ACTFEL devices with varying phosphor thicknesses

Creator:: Shih, Shou-Po
Resource Type:: Masters Thesis

Energy Harvesting and Power Management Integrated Circuits for Self-Sustaining Wearables

Creator:: Bose, Soumya
Abstract:: Harvesting energy from ambient sources can provide power autonomy to energy efficient electronics and sensors. The last decade has seen a multitude of ways to scavenge energy from various sources like solar, thermal, electromagnetic, electrostatic, piezo-electric and many more. Thermal energy from human body heat is ubiquitous and can be...
Resource Type:: Dissertation

Duty-cycle controlled switched resistor techniques for continuously tunable, low-voltage circuits

Creator:: Kurahashi, Peter
Abstract:: A duty-cycle controlled switched resistor is a tunable resistive element that uses pulse width modulation as the method of tuning. This thesis will describe the operation of switched resistors and propose several circuit architectures that are well suited to the use of switched resistors. These architectures include filters, mixers, and...
Resource Type:: Dissertation

Dynamic and Dual Streaming Methods for H.264 Video and Parallel Performance Modeling

Creator:: Johnson, Taylor N.
Abstract:: Traditional approaches to streaming H.264 video over a network typically rely on a single method of transport (i.e., reliable or unreliable) and/or use static values for parameters that can have a significant negative impact on the perceptual quality of the received video. This dissertation presents a dynamic method for wireless...
Resource Type:: Dissertation

Optimum equalization and synchronization of broadband multicarrier systems

Creator:: Lashkarian, Navid
Abstract:: The application of information theory and digital signal processing techniques to digital communication has resulted in robust methods for reliable high speed data transmission over noisy channels environments. Among these methods, multicarrier systems have become a viable solution for exploiting maximum spectral efficiency over both wideband highly dispersive static and...
Resource Type:: Dissertation

Pattern recognition of speech using hybrid computer feature extraction

Creator:: Herr, Alan Jack
Abstract:: Most technological problems associated with man-machine conversations have been solved and are well documented in both the contemporary technical and lay literature. The major remaining technological problem is the real time conversion of a human's vocal uterances into a "written" phoneme sequence representing the information content of speech. The work...
Resource Type:: Dissertation

ScholarsArchive@OSU

Grating-tuned external cavity diode lasers

Noise measurements, models and analysis in GaAs MESFETs circuit design

802.11 Channel Switching for High-Definition Video Streaming

Electrical properties of GaAs FET structures

Electrical characterization and aging studies of ALE ZnS:Mn ACTFEL devices with varying phosphor thicknesses

Energy Harvesting and Power Management Integrated Circuits for Self-Sustaining Wearables

Duty-cycle controlled switched resistor techniques for continuously tunable, low-voltage circuits

Dynamic and Dual Streaming Methods for H.264 Video and Parallel Performance Modeling

Optimum equalization and synchronization of broadband multicarrier systems

Pattern recognition of speech using hybrid computer feature extraction

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