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 “"multi-element"”.
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Multi-element superconducting nanowire single photon detectors
… the advantages gained by building arrays of multiple SNSPDs may be even more unique among single photon detector technologies. First, the simplicity and nanoscale dimensions of these detectors make it possible to easily operate multiple elements and to closely space these elements such that …
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The aerodynamics of multi-element wings in ground effect
A comprehensive investigation into a multi-element wing in ground effect was conducted. A dual strategy was used within the research incorporating both experimental and computational techniques. The primary application of this research is within the field of motorsport. However the results also …
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A new approach to neutron spectrometry with multi-element scintillators
… i.e. (n,α) and (n,p), on two different elements have been used to carry out neutron spectrometry. In addition, this thesis aims to investigate the spectrometric properties of scintillating materials as a first step to establish a platform for developing a neutron spectrometer/dosimeter. …
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Investigation of Topology and Integration for Multi-Element Resonant Converters
… like LLC. Based on this method, lots of multi-element resonant converters are found to solve the issues that LLC resonant converter cannot handle. To evaluate the performance of found numerous valuable topologies. Thus, a general evaluation system is required. State-plane analysis with …
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Computational Fluid Dynamics Analysis of Inverted, Multi-Element Airfoils in Ground Effect
… cross sections are defined by configurations of multiple 2D airfoils extruded across the wing’s span. This thesis focuses on the research to systematically design the front wing sections of a Formula SAE race car by studying characteristics of high lift, inverted airfoils in ground effect in …
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Multi-element isotopic analyses of presolar graphite grains from the Orgueil meteorite
… while high-density graphite grains have multiple stellar sources: low-metallicity and born-again asymptotic giant branch stars, as well as supernovae.
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A Time-Domain Modeling of Multi-Element Resonant Converter With Capacitive Output Filter
… based design tool has been proposed for the multi-elements resonant converters. A computer program has been written using the generalized equations in MATLAB App Designer. The MATLAB App Designer provides a graphical user interface (GUI) features to this tool. The time-domain analysis of CLL …
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Uncertainty analysis in a shipboard integrated power system using multi-element polynomial chaos
The integrated power system has become increasingly important in electric ships due to the integrated capability of high-power equipment, for example, electromagnetic rail guns, advance radar system, etc. Several parameters of the shipboard power system are uncertain, caused by a measurement …
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Visualisation of dynamic flow processes using a novel pulsed multi-element hot-wire anemometer.
… describes the development of a novel Single-Element Pulsed Hot-Wire Anemometer (SEPWA) and its multi-element applications to fluid flow visualisation. Unlike previous pulsed anemometers which have separate heating and sensing wires, the methods described here utilise a single wire as both …
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Taphonomy and Palaeoecology of multi-element skeleton invertebrates: a genetic model for exceptional preservation
… dense fossil accumulations of wellpreserved, multi-element skeleton invertebrates, such as arthropods and echinoids, were studied. The first case studied concerns the Ordovician trilobite-like arthropod Tariccoia arrusensis, which is found locally within the grey siltstones of Riu Is Arrus …
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Developing an elevated temperature Pourbaix diagram for zirconium and multi-element Pourbaix diagram of Zircaloy-4
… These Pourbaix diagrams of zirconium and multi-element diagram (Sn, Zr, Cr) of Zircaloy-4 were developed at 373.15K (100 °C). Solubility measurements were made using a batch-style pressure vessel and concentration measurements were made using ICP-OES and ICP-MS, for zirconium and …
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Design and experimental evaluation of a multi-element and multi-catheter ultrasound system for interstitial hyperthermia
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1998.
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An analysis method for the viscous/inviscid flow around two dimensional multi-element aerofoils including surface roughness effects
… steady flow around two dimensional multi-element aerofoils having a rough or smooth surface.The potential flow over the aerofoil is solved by replacing the aerofoil contour with a polygon of plane panels and using linear distributed vorticity on the panels to represent the aerofoil. …
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Abrupt climate change in the Atlantic Ocean during the last 20,000 years : insights from multi-element analysis of benthic and planktic foraminifera and coupled OA-GCM
Minor and trace element records of planktic and benthic foraminifera from Atlantic sediment cores, as well as output from a coupled OAGCM, were used to investigate the magnitude and distribution of the oceanic response to abrupt climate events of the past 20 kyr. The study addressed three major …
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Abrupt climate change in the Atlantic Ocean during the last 20,000 years : insights from multi-element analysis of benthic and planktic foraminifera and a coupled OA-GCM
Minor and trace element records from planktic and benthic foraminifera from Atlantic sediment cores, as well as outputfrom a coupled OA·GCM, were used to investigate the magnitude and distribution of the oceanic response to abrupt Climate events.of the past 20,000 years. The study addressed three …
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NDT to characterize 3D printed concrete interlayer bonds
… pulse velocity (UPV), vibration resonance, and multi-element array ultrasonics) to idealized, layered concrete specimens that simulate layers of a 3D printed structure. The bond interfaces in the samples were characterized into well bonded, weakly bonded, and disbonded categories based on …
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EFFECTS OF STIMULUS COMPLEXITY, SUBJECT AGE, AND STIMULUS CODING ON SELECTIVE STIMULUS CONTROL
… that are developed between the various stimulus elements of a discriminative stimulus and the subject's response. A multi-element conditional discrimination problem is an effective means of studying these relationships. In the first experiment, preschool and adult subjects were presented with a …
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