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 534 for “"electromechanical"”.
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Electromechanical streaming instabilities
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1965.
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Vibrating-string electromechanical filters
Thesis (M.S.) Massachusetts Institute of Technology. Dept. of Electrical Engineering, 1952.
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Sensing for Electromechanical Systems
Electromechanical devices and systems, for example, pumps, compressors, and electric machines, are the foundation of modern society. Condition monitoring of these systems is crucial for efficient operation and operator safety. Modern electronics enable new developments in electromechanical system …
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Electromechanical Wave Propagation Analysis
… angles. The rotor angle deviations propagate as electromechanical waves (EMWs) throughout the power system. These waves became observable since the development of synchrophasor measurement instruments. The speed of EMW propagation is hundreds of miles per second, much less than the …
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Electromechanical resonators as measuring transducers
With the increasing use of digital computers for data acquisition and digital process control, frequency domain transducers have become very attractive due to their virtual digital output. Essentially they are electrically maintained oscillators where the sensor is the controlling resonator.They …
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The electromechanical effect in bone
… theory to account for the otherwise anomalous electromechanical effect in bent bone, and we conclude that it is the variations in the piezoelectric moduli that produce the electromechanical effect in bent bone. This result unifies the electromechanical phenomena for dry bone under one effect, …
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Electrical Monitoring of Electromechanical Systems
Electromechanical systems provide the world’s backbone for generating and using energy. Electromechanical systems can also experience an innumerable set of failures, causing induced wear and wasted energy, or eventually a complete failure of a critical piece of equipment or system. Degradation or …
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Carbon nanotube based electromechanical probes
Electromechanical probing applications continuously require smaller pitches, faster manufacturing and lower electrical resistance. Conventional techniques, such as MEMS based cantilever probes have their shortcomings in terms of the lowest pitch that can be achieved, cost and yield. Given their …
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Nanoscale membranes for electromechanical systems
Micro- and nano-electromechanical systems (MEMS/NEMS) are a technology field that branched out of semiconductor integrated circuit (IC) manufacturing about four decades ago, and one that forms the backbone of the Internet of Things era. However, as MEMS devices are becoming ubiquitous, they are …
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Prototyping practices in electromechanical startups
Electromechanical startups contend with signicant uncertainty, especially in early stages of development. Prototyping is a critical component through the product development process, and when employed eciently, can act as a method for mitigating risk associated with product viability for founders …
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Electromechanical Effects in Bone and Nerve
Submitted by Carolyn Rauber (crauber2@illinois.edu) on 2011-06-02T16:41:30Z No. of bitstreams: 1 1982_gross.pdf: 7017300 bytes, checksum: 29a11ef25d2ef4cbca3d676400a2cea2 (MD5)
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Extracting Electromechanical Signals for Icebreaker Insights
Nonintrusive load monitoring has a proven track record of providing benefits for equipment operation logging, fault detection and diagnostics, condition-based maintenance, and energy scorekeeping. A nonintrusive load monitor (NILM) can measure the aggregate electrical power at a central utility …
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High-index-contrast electromechanical optical switches
… integrated photonic networks. Several electromechanical optical switches are explored with the intent of being utilized as optical switching elements in transparent, integrated photonic networks. The electromechanical optical switches are based on high-index-contrast waveguide optics …
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Printed electronics and micro-electromechanical systems
Current electronics and micro-electromechanical systems (MEMS) manufacture is optimized for the production of very high-volume parts on a limited range of substrates. These processes are long, consume large amounts of resources, and require expensive machines and facilities, but yield excellent …
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Electromechanical Modeling of Piezoelectric Energy Harvesters
… This work presents distributed-parameter electromechanical models that can accurately predict the coupled dynamics of piezoelectric energy harvesters. First the issues in the existing models are addressed and the lumped-parameter electromechanical formulation is corrected by introducing a …
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Stochastic Modeling of Micro-Electromechanical Systems (Mems)
In the final part, a data-driven stochastic collocation approach is presented, which seeks to characterize uncertain input parameters based on available experimental information. This approach models the uncertain parameters as independent random variables, for which the distributions are estimated …
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Local electromechanical behavior of elastomeric conductive composites
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms
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Active Micro-/Nano-Structures for Electromechanical Actuation
… in parallel results in emerging concepts of electromechanical devices and systems with tunable characteristics enabled by exploiting all the degrees of design freedom available to the active components. Engineering such micro-/nano-structures requires precise and scalable fabrication with …
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