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 20 of 25 for “"Highly linear"”.
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Design of a Highly Linear 24-GHz LNA
… of an LNA enforces the next stages to be more linear since they suffer from larger signal at their input stage and can get saturated easily. Apparently, designing high gain, low noise, and highly linear LNA is very stimulating. In this thesis, a wideband LNA with low noise figure and high …
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Low power highly linear CMOS output buffer for low temperature infrared focal plane arrays
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1992.
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Development of a precision hot embossing machine with in-process sensing
… and temperature input as well as displaying highly linear, repeatable motion and force application is developed and characterized. Additionally, this equipment is then outfitted with additional sensors that allow for three measurements relevant to process physics and product quality to be …
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Toward a micro-scale acoustic direction-finding sensor with integrated electronic readout
… based on the Ormia ochracea fly’s ear. First, linear elastic stiffness models are presented and then validated by using a nanoindenter to measure the sensor’s stiffness directly. The measured stiffness is highly linear, and the resonant frequencies are correctly predicted by the models …
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An organic thin-film transistor circuit for large-area temperature-sensing
… with 12nW of power dissipation, but has a nonlinear temperature response that is dependent on threshold voltage shifts. The second circuit achieves a responsivity of 5.9mV/°C with 88nW of power dissipation, and has a highly linear temperature response that is tolerant of threshold voltage …
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Students' mathematical modeling in algebra
… I found that two groups followed iterative, non-linear modeling routes and used more algebraic reasoning, while one group followed a highly linear modeling route and did not use as much algebraic reasoning. In addition, I found that the later steps in the modeling cycle led to more algebraic …
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Simulation and Experimental Testing of Additively Manufactured Strain Gauges
… be utilized to produce robust sensors that have highly linear responses; however, additional work is needed to optimize sensor performance and eliminate hysteresis and repeatability errors. The work presented herein investigates the effects of different sensor geometries, as well as the response …
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Fundamental building blocks for a compact optoelectronic neural network processor
… and a novel lateral BJT structure. In addition, highly-linear transimpedance amplifiers were designed to condition the signal from the photodetector for further processing.
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Investigation of Microwave Transducer for Linearity Dependence and Applications in Quantum Networking
… yet most do not have the high-speed and high-linearity performance or the ability to handle ultracold temperatures. To address these low-temperature and high-frequency problems, an RF photonic microwave transducer is used to measure the frequency response and investigate the linearity …
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Prototype Of Coupling Unit Network For Power Line Communications
… to interference, low signaling impedance and the highly linear operating environment that PLC transmitters require. The coupling unit in the PLC system acts as a filter and eliminates the harmful AC signal from interfering with the broadband signals. A coupling unit amplifier topology that …
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Jellyfish Inspired Underwater Systems and Technologies
… statocyst was found to produce the required highly linear voltage divider output. This sensor will provide the vehicle with biomimetic self-awareness of its own body position. Future directions are proposed for the biomimetic robotic jellyfish such as on-board power and computing, …
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A wide-dynamic-range time-based CMOS imager
… 37 dB peak signal-to-noise ratio (SNR), and a highly-linear transfer characteristic while consuming 1.79 nJ/pixel/frame, making it one of the most energy-efficient wide-dynamic-range imagers reported. The individual pixels experimentally achieve 98.8 dB dynamic range and 44 dB peak SNR. The …
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Design and Implementation of a Constant Envelope OFDM Waveform in a Software-Defined Radio Platform
… specifically their stringent requirements for highly linear, power-inefficient amplification. The thesis then presents a most intriguing answer to the PAPR-problem in the form of a constant-envelope OFDM (CE-OFDM) waveform, a waveform which employs phase modulation to transform the high-PAPR …
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Small craft motion in reflected long-crested seas
… exceptions, model response was found to be highly linear. The most notable of these exceptions were the resonance peak in surge, and all yaw motions. The modes of sway and roll also exhibited nonlinearities but, surprisingly, these were fairly A numerical program was undertaken to attempt to …
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Herbivore movement and spatial population dynamics in a heterogeneous landscape
… trials. Whereas movement through mudflat was highly linear, movement was much more tortuous through brome. Within patches, brome edges were three times more permeable to emigration than mudflat edges. I suggest that the effect of matrix composition on the rate of planthopper movement among …
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Relationships Between Physical, Chemical, and Functional Properties of Enzymatically-Modified and Unmodified Soy Protein (Nmr, Plasteins, Denaturation, Extrusion)
… and product characteristics, often in a highly linear fashion. Another set of experiments explored relationships between AMW, TCA and water solubility of plasteins formed under variable incubation substrate concentration and using several different proteases. Results indicated that …
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An intraperitoneal implantable drug delivery device for the treatment of ovarian cancer
… IP bolus drug infusion. The device demonstrated highly linear and easily tunable in vitro release and exhibited excellent in vitro-in vivo correlation. Investigations of the device pharmacokinetics in vivo proved that the device was able to maintain a low and constant cisplatin concentration both …
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Survival and space use of riparian muskrats (Ondatra zibethicus) within an agroecosystem
… space use and survival of muskrats in these highly altered habitats is lacking. I examined predation risk, survival, home ranges, and space use of muskrats within small streams and agricultural ditches in a human-dominated agricultural landscape in east-central Illinois from 2007-2009. To …
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Quantitative characterization of multi-variable human ankle mechanical impedance
… ankle mechanical impedance, which is a non-linear torque and angle relationship at the ankle, was characterized in two coupled DOFs over the normal range of motion. Robust vector field approximation methods based on thin-plate spline smoothing with generalized cross validation showed that …
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