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.
Results
Showing 1 to 20 of 49 for “"Electrical conduction"”.
-
Electrical conduction in polyimide
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1989.
-
Electrical conduction in metal-organic frameworks
… and great tunability. Their generally low electrical conductivity and charge mobility hinder applications in electronic and energy storage devices. Systematic studies on electrical conduction in these materials are highly desired. This thesis aims to understand electrical conduction in MOFs …
-
Finite element model of cardiac electrical conduction
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1994.
-
Fe-Al-O spinel : internal structure and electrical conduction.
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 1977
-
Effects of High Intensity Sound on Electrical Conduction in Muscle
Made available in DSpace on 2014-12-04T21:02:41Z (GMT). No. of bitstreams: 1 0009160.pdf: 3250960 bytes, checksum: 527c18cb362386a279f8dce6c9f82273 (MD5) Previous issue date: 1954
-
Physical modeling of electrical conduction in printed circuit board insulation
… concerned with understanding the degradation of electrical and electronic components in automobiles due to environmental effects. A special emphasis is placed on understanding the physical processes underlying the degradation, so that accelerated reliability tests can be specified with increased …
-
Carrier Transport and Electrical Conduction in Alloy-Mediated Graphene on Silicon
… (via a thin film of 3C-SiC) with reliable electrical transport measurements has not been elucidated to date, due to limitations such as non-uniform coverage of graphene on 3C-SiC/Si and high density of defects within the 3C-SiC. In this work, we first show that the heteroepitaxial 3C-SiC on …
-
Electrical conduction transport mechanisms of barium titanate- based multilayer ceramic capacitors
… major objectives of this study were to examine electrical conduction properties of BaTiO3-based multilayer ceramic ( MLC ) capacitors in order to gain a better understanding of the conduction transport mechanisms inside the devices. The experiments involved mainly leakage current versus time …
-
Electromechanical modulation of electrical conduction through organic thin films for switching applications
Nanoelectromechanical (NEM) switches exhibit abrupt switching behavior and near-zero leakage current making them promising alternatives to conventional semiconductor switches. However, they require high actuation voltages and commonly suffer from permanent adhesion of device components leading to …
-
Magnesium sulphate reversal of established bupivacaine electrophysiological cardiotoxicity
… than placebo. The improvements are in rhythm and electrical conduction, although this is often at the expense of potentiating the bradycardic effects of bupivacaine toxicity. Whilst the bradycardia remains a problem it is potentially more amenable to therapy than the changes in rhythm and …
-
Conductance and magnetoconductance of parabolically confined quasi-one-dimensional channels
Electrical conduction is studied along parabolically confined quasi-one dimensional channels in the framework of linear-response theory. In the absence of a magnetic field an expression for the conductance is obtained, that agrees with those in the previous, literature on this subject, as well as …
-
Ion Implantation and Characterization of High Temperature and High Performance Polymers
… a dose range of 10¹³ to 10¹⁷ ions/cm². Surface electrical conductivities of these originally insulating polymers have been drastically enhanced after the ion implantation. Structural and compositional changes that accompanied these electrical enhancements were observed using Infrared (IR), …
-
Arrhythmia heart disease classification using deep learning
… Arrhythmias are caused by problems with the electrical conduction system of the heart. Therefore, we have designed a model using supervised deep learning to classify the heartbeats extracted from an ECG into four (4) heartbeat classes which is normal beat, ventricular ectopic beat (VEB), …
-
Feynman-Dyson perturbation theory applied to model linear polyenes
… which are thought to account for the unique electrical conduction properties of trans - polyacetylene and similar conducting polymers. Feynman-Dyson perturbation theory was also used to extend Hartree-Fock theory by the inclusion of time-independent second-order self-energy insertions. The …
-
Thin film solar cells using all-electrodeposited ZnS, CdS and CdTe materials.
… characterised for their structural, optical, electrical, morphological and compositional properties using x-ray diffraction, optical absorption, photoelectrochemical cell, current-voltage, scanning electron microscopy and energy dispersive x-ray techniques respectively. The results show that …
-
Sensorless temperature estimation and control of Peltier devices
… dissimilar materials in which heat transfer and electrical conduction are coupled. A current running through a TED causes heat to flow; likewise, the presence of an external temperature gradient will induce an electrical potential across the TED. The former effect is known as the Peltier effect; …
-
Electrical transport properties of barium titanate-based capacitor ceramics
Electrical conduction mechanisms in BaTiO₃-based ferroelectric capacitor ceramics with an emphasis on the X7R type were studied. Dominant charge carriers in this material were identified as conduction band electrons below a temperature of 850°C. This was substantiated by the following results: …
-
Carbon nanotube based electromechanical probes
… 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 promising mechanical and electrical properties, carbon …
-
Optoelectronic devices based on graded bandgap structures utilising electroplated semiconductors
… compositional, morphological, optical, and electrical features using XRD, Raman spectroscopy, EDX, SEM, UV-Vis spectroscopy, PEC cell, C-V, I-V and UPS measurement techniques respectively. The summary of the results depict that CdSe and CdS semiconductors have hexagonal crystal structures …
Page 1 of 3