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 453 for “"3-Dimensional"”.
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CAD for a 3-dimensional FPGA
… A CAD tool has been developed to specify 3-dimensional FPGA architectures and map RTL descriptions of circuits to these 3-D FPGAs. The CAD tool was created from the widely used Versatile Place and Route (VPR) CAD tool for 2-D FPGAs. The tool performs timing-driven placement of logic blocks …
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Creation of 3-dimensional micro-optical materials
Structure at or below the wavelength of light can greatly modify the optical properties of materials. Control over these aspects can introduce a variety of optical phenomena, such as photonic band gaps, negative refractive index, transformation optics, and sub-diffraction limit focusing, to name a …
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3-dimensional autostereoscopic displays with 4K televisions
… of Fall 2016 through Fall 2017 in regards to 3-Dimensional autostereoscopic light fields. It includes work from a senior project called 6.UAP and a Masters of Engineering thesis called the MEng. In the 6.UAP senior project, combination methods for autostereoscopic 3D displays on high definition …
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A 3-dimensional editor for app inventor
3-Dimensional Applications are constantly becoming ever more abundant to audiences of all ages. However, development for such applications have allows been known to be unpleasant. To make 3-Dimensional Application development more appealing and available to people of all ages, this thesis looks to …
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Geometric Approaches for 3-Dimensional Shape Approximation
Having 3D simulation models which represent the visual geometry and contact dynamics of arbitrary objects is important for achieving robust planning and control for robotic manipulation tasks and sim2real transfer. Currently, the most common solution for obtaining such models is generating them by …
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A 3-Dimensional Approach to Projectile Point Classification
<p>Typologies have long been used by archaeologists to answer questions about the past, ranging from issues of site chronology to tool function. However, current methods are hampered by subjective misclassifications as well as a loss of the range of variability among different tool forms due to a …
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3-dimensional surface imaging using Active Wavefront Sampling
A novel 3D surface imaging technique using Active Wavefront Sampling (AWS) is presented. In this technique, the optical wavefront traversing a lens is sampled at two or more off-axis locations and the resulting motion of each target feature is measured. This target feature image motion can be used …
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Light field applications to 3-dimensional surface imaging
… of light around a scene may be contained in a 4-dimensional array known as a light field. This thesis describes methods for acquiring and manipulating light fields for applications in 3-dimensional imaging. By actively sampling parts of the wavefront impinging on a lens, or using microlens arrays …
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Designing High-Performance Microprocessors in 3-Dimensional Integration Technology
The main contribution of this dissertation is the demonstration of the impact of a new emerging technology called 3D-integration technology on conventional high-performance microprocessors. 3D-integration technology stacks active devices in the vertical dimension in addition to the conventional …
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Synchronized structured sound : real-time 3-dimensional audio rendering
Thesis (M.S.)--Massachusetts Institute of Technology, Program in Media Arts & Sciences, 1995.
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3-Dimensional Intracortical Neural Interface For The Study Of Epilepsy
<p>Epilepsy is a chronic disease characterized by recurrent, unprovoked seizures, where seizures are described as storms of uncontrollable neuro-electrical activity within the brain. Seizures are therefore identified by observation of electrical spiking observed through electrical contacts …
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A 3-dimensional h-adaptive algorithm for species transport prediction
Development of 3-dimensional self-adaptive algorithms for unstructured finite element grids is recent to the solution of partial differential equations. An h-adaptive grid embedding method is employed to help solve the Navier-Stokes equations for fluid flow and scalar transport; This h-adaptive …
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A 3-dimensional analysis of the Cassiopeia a supernova remnant.
… us to make a Doppler reconstruction of its 3-dimensional structure structure. In the center of the remnant, we find relatively pristine ejecta that have not yet reached Cas A’s reverse shock or interacted with the circumstellar environment. We observe O, Si, and S emission. These ejecta can …
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Cerebral Organoids as 3-Dimensional Grafts in Traumatic Brain Injury
Traumatic brain injury results in the permanent loss of brain tissue, as the brain lacks a functional mechanism to regenerate the lost tissue. Researchers have sought to develop cell-based therapies to regenerate these tissues using several approaches, such as neural progenitor cells, mesenchymal …
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An HBT magnetic sensor with integrated 3-dimensional magnetic structures
… the sensitivity of an HBT to magnetic field 3–dimensional magnetic structures were designed to be incorporated onto the surface of the extrinsic base. This design process was informed by simulation of magnetic field profiles of the magnetic elements and fabrication processes were created that …
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The application of Moire interferometry to automated 3-dimensional inspection
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1985.
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Virus-based 3-dimensional nanowire network copper and nickel electrodes
Synthesizing a scalable microelectrode at room temperature is possible using bio-templating. To create a novel 3D electrode, we report M13 virus cross-linking and nickel and copper nanowire synthesis. In this process, virus was cross-linked using glutaraldehyde to form mechanically stable …
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The numerical study of 3-dimensional laminar hypersonic blunt-fin interactions
The three-dimensional numerical simulation of a Mach 6.7 perfect gas, with a unit Reynolds number of 7.6 x 106m-1, over several configurations of a blunt-fin attached to a flat plate are carried out. The resulting interference flowfield is reported in this thesis.<br/>The laminar Navier-Stokes code …
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