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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 131 to 140 of 2181 (0.033 seconds)| 131 |
Automated reconfigurable antenna impedance for optimum power transferAlibakhshikenari, M., Virdee, B.S., See, C.H., Abd-Alhameed, Raed, Falcone, F., Limiti, E. January 2019 (has links)
Yes / This paper presents an approach to implement an automatically tuning antenna for optimising power transfer suitable for software defined radio (SDR). Automatic tuning is accomplished using a closed loop impedance tuning network comprising of an impedance sensor and control unit. The sensor provides the control unit with data on the transmit or receive power, and the algorithm is used to impedance of a T-network of LC components to optimize the antenna impedance to maximise power transmission or reception. The effectiveness of the proposed tuning algorithm in relation to impedance matching and convergence on the optimum matching network goal is shown to be superior compared with the conventional tuning algorithm. / This work is partially supported by innovation programme under grant agreement H2020-MSCA-ITN-2016 SECRET-722424 and the financial support from the UK Engineering and Physical Sciences Research Council (EPSRC) under grant EP/E022936/1
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Differences in electrical impedance measurements due to guarded/unguarded electrodes in homogeneous/inhomogeneous regionsReed, Wen-Yin F. January 2011 (has links)
Typescript (photocopy). / Digitized by Kansas Correctional Industries
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A method of generating n-branch Millman networksTeichgraeber, Richard D. January 1966 (has links)
LD2668 .T4 1966 T262 / Master of Science
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Impedance based integrated circuits for biological sensingMa, Hanbin January 2014 (has links)
No description available.
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| 135 |
Systematic realization of negative impedance converter and its application to the synthesis of driving-point nonlinearcharacteristic劉金城, Lau, Kam-shing. January 1973 (has links)
published_or_final_version / Electrical Engineering / Master / Master of Philosophy
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Sensitivity and specificity of tympanometric norms for Chinese preschool children霍曉澄, Fok, Hiu-ching, June. January 2008 (has links)
published_or_final_version / Speech and Hearing Sciences / Master / Master of Science in Audiology
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Fundamental study on characterization of porous media using impedance spectroscopyMak, Shiu-wai., 麥兆偉. January 2009 (has links)
published_or_final_version / Civil Engineering / Master / Master of Philosophy
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Impedance determination of a RF plasma discharge by external measurementsKrautschik, Christof Gabriel, 1957- January 1989 (has links)
The equivalent impedance of a RF plasma was experimentally determined by monitoring the voltage and current waveform for different input powers in real time. Average ion energies and fluxes were determined by a computer model which takes ion collisions in the sheath regions into account. In addition two models were proposed which explain how RF energy is converted to DC potential energy in the sheath. Etch rates of Si in a CF₄ discharge were also evaluated and related to the measurements.
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The relationship between motility and gastrointestinal transit of tabletsMitchell, Catherine Lindsay January 1996 (has links)
No description available.
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| 140 |
Development of novel reconstruction algorithms for induced current impedance imagingBouallouche, Amar January 1996 (has links)
No description available.
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