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 94 for “"electrothermal"”.
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Electrothermal controlled-exposure technology
… electronic signal. The exposure mechanism uses electrothermal heating to rupture a metal membrane at one end of the cavity. The device's capability for storing a variety of contents and exposing them on demand makes it well suited for periodic exposure of new sensors as old ones degrade. Two …
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Tungsten Coil Electrothermal Vaporization for Atomic Spectroscopy
Electrothermal vaporization has served as an alternative sample introduction method in atomic spectroscopy for some time. Typically, electrothermal vaporizers made of graphite, but these devices do not lend well to mass production, are expensive, and require large power supplies for operation. In …
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Analysis and design of electrothermal integrated circuits.
Massachusetts Institute of Technology. Dept. of Electrical Engineering. Thesis. 1972. Sc.D.
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REACTIVE GASES IN ELECTROTHERMAL ATOMISATION ATOMIC ABSORPTION SPECTROMETRY
… compounds have been used as matrix modifiers in electrothermal atomic absorption spectroscopy (ETAAS). Oxidising gases such as air or nitrous-oxide, introduced during the charring stage, both thermally stabilised analytes such as lead, and improved the efficiency of pyrolysis by converting the …
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Electrode Geometry Effects in an Electrothermal Plasma Microthruster
… the Australian National University (ANU), is an electrothermal plasma thruster known as Pocket Rocket (PR). This device heats neutral propellant gas by exposing it to a Capacitively Coupled Plasma (CCP), then expels the heated gas to produce thrust. Significant work has gone towards understanding …
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Design of Optical Measurements for Electrothermal Plasma Discharges
Ablation controlled electrothermal (ET) plasma discharge devices consist of a small diameter capillary through which a large amount of energy is discharged. The high energy in the discharge ablates an inner sleeve material, ionizes the material, and a high energy-density plasma jet accelerates out …
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Two-dimensional, Hydrodynamic Modeling of Electrothermal Plasma Discharges
… model and code have been developed to model electrothermal (ET) plasma discharges. ET plasma discharges are capillary discharges that draw tens of kA of electric current. The current heats the plasma, and the plasma radiates energy to the capillary walls. The capillary walls ablate by melting …
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Electrothermal design exploration of electric machines using hollow conductors
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-05-01
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The Effect of Anomalous Resistivity on the Electrothermal Instability
The current driven electrothermal instability (ETI) forms when the material resistivity is temperature dependent, occurring in nearly all Z-pinch-like high energy density platforms. ETI growth for high-mass density materials is predominantly striation form which corresponds to magnetically …
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FINITE ELEMENT AND IMAGING APPROACHES TO ANALYZE MULTISCALE ELECTROTHERMAL PHENOMENA
Electrothermal effects are crucial in the design and optimization of electronic devices. Thermoreflectance (TR) imaging enables transient thermal characterization at submicron to centimeter scales. Typically, finite element methods (FEM) are used to calculate the temperature profile in devices and …
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Micro-Nozzle Simulation and Test for an Electrothermal Plasma Thruster
… under development, known as Pocket Rocket, is an electrothermal plasma micro-thruster.</p> <p>Pocket Rocket uses a capacitively coupled plasma, generated by radio-frequency, in order to provide neutral gas heating via ion-neutral collisions within a gas discharge tube. When compared to a cold-gas …
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Onset in magnetoplasmadynamic thrusters : a model of an electrothermal instability
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1990.
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Experimental studies of the electrothermal instability using electrically thick, coated metal
The electrothermal instability (ETI) plays an important role in the thermal and hydrodynamic uniformity of metallic systems carrying electrical current densities greater than approximately 1 MA/mm^2. Most importantly, the stratified form of the ETI generates and amplifies temperature and …
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A CubeSAT Orbital Test Platform for an Electrothermal Plasma Micro-Thruster
… will baseline the use of Pocket Rocket, an electrothermal plasma micro-thruster, originally developed by the Australian National University. The thruster has seen continued development with the PolySat team, and the PolySat version's performance and form factor is used in the following …
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Organic Vapor Recovery Using Activated Carbon Fiber Cloth and Electrothermal Desorption
… micro-engineered adsorbent, with rapid in-situ Electrothermal Desorption (ED). ED regenerates the adsorbent by efficient electrical resistance heating. A unique aspect of this technology is that adsorbate readily condenses inside the adsorption vessel and is recovered as a pure liquid with only …
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Decision-Based Design of New Products: Electrothermal Swing Adsorption (Esa) System
A normative decision tool in the form of multiattribute utility analysis helps to incorporate desirable trade-offs among product attributes of capital cost, operating cost and environmental impact in a systematic manner. The objective is to improve the overall worth of product for customers. …
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Electrothermal Simulation and Temperature-Sensitive Reliability Diagnosis for CMOS VLSI Circuits
ILLIADS-T has been successfully applied to the electromigration (EM) reliability diagnosis and timing analysis. By considering both transistor and interconnect temperatures, the temperature-sensitive EM-induced mean time-to-failure and critical path timing are estimated and discussed.
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Analysis of hybrid electrothermomechanical microactuators with integrated electrothermal and electrostatic actuation
The goal of this research is to integrate electrothermal and electrostatic actuation in microelectromechanical systems (MEMS). We look at cases where these two types of actuation are intimately coupled and argue that such integrated electrothermomechanical microactuators have more advantages than …
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Unraveling the Reconfiguration Dynamics of Silver Nanowire Networks under Electrothermal Stress
… with durability. In this work, we focus on electrothermal instability and provide new insights into the electrothermal drivers of silver nanowire network failure. First, we borrow the notion of betweenness centrality from graph theory and test its applicability to simulated nanowire network …
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