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 647 for “"Space-Time"”.
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Space, time and acoustics
… the propagation of sound in a three dimensional space over time. Information is communicated through a unique use of images that are better suited for interfacing with the design process. The first part of this thesis describes the concepts behind the development of a graphic acoustical rendering …
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Space, time, and silence
This thesis is a meditation upon silence, upon its ontological relationship to architecture. As such, it relies more upon insight and contemplation than analysis. It seeks to explore this realm through the making of a trappist monastery, to ask fundamental questions about the nature of human …
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Space, time, ether, and Kant
Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T15:06:36Z Item is restricted indefinitely.
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Space-time estimation of flood quantiles
L'abstract è presente nell'allegato / the abstract is in the attachment
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Space-Time Coding with Offset Modulations
In this dissertation it is shown that the telemetry versions of Feher-patented QPSK (FQPSK-JR) and shaped offset QPSK (SOQPSK-TG) can be interpreted as both cross-correlated, trellis-coded quadrature modulation (XTCQM) and continuous phase modulation (CPM). Based on these representations, both …
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Space-time imaging and interferometric microscopy
… In this thesis, I discuss applications of time-domain and polychromatic optical fields, which illustrate the benefits of the amalgamation of experimental optics and computational analysis.
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Synthetic morphogenesis : space, time, and deformation
… little can be assumed about the progress of time. In one branch of my work, I develop patterning techniques where convergence is transparently and locally detectable, drawing insights from clockless digital circuits and casting the problem as distributed constraint propagation. In another …
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Space-time tradoffs for graph properties
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.
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Space/time/frequency methods in adaptive radar
Radar systems may be processed with various space, time and frequency techniques. Advanced radar systems are required to detect targets in the presence of jamming and clutter. This work studies the application of two types of radar systems. It is well known that targets moving along-track within a …
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Parallel Delaunay Refinement and Space -Time Meshing
… We give several constructions for tiling space with acute tetrahedra.
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Methods and applications for space-time data
… conducted for both separable and nonseparable space-time covariance models. The model is also illustrated with wind speed and streamflow datasets. Both simulation and data analyses show that modeling nonstationarity in both space and time can improve the predictive performance over stationary …
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A space-time approach to quantum mechanics
We present a systematic development and application of Geometric Algebra, an extended vector calculus. The entire algebraic structure, which is a graded Clifford algebra, is developed. To illustrate the derived results, examples are given for two and three dimensions. Here it becomes clear, how …
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Space-time rupture properties of large earthquakes
… M, 6.8, Prince Edward Island events show clear time-domain evidence for episodes of smooth moment release that preferentially radiated energy at low frequencies. Inversions for the moment-rate functions of these events yield compound event sequences where the derivative of the moment-rate …
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Space-time block coding with imperfect channel estimates
Space-time block coding (STBC) is a method that combines diversity and coding without a corresponding increase in bandwidth and with minimal complexity in the receiver. The performance of STBC with perfect channel state information (CSI) being available at the receiver has been shown to provide …
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Qualitative spatial change: space-time histories and continuity
… a theory for spatial regions, I extend it for space-time. A mereotopological spatio-temporal theory based on space-time histories is developed. I formalize the intuitive notion of spatio-temporal continuity and christen it strong firm continuity. Continuous transitions in mereotopology for …
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Generating space-time composite images for GIS data
… obtain a single image approximating the entire time span and the whole area covered in the survey. The problem with this however, is that in creating these temporal composite images, values are averaged out so that small variations that occur over short time scales are lost. In an effort to …
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Euclidean space codes as space-time block codes
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
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Computational light transport using space, time, and polarization
… between light and matter in a tractable space. In this thesis, we study new methods to invoke space, time, and polarization into a computational light transport framework. First, we study how probing the time dimension enables cameras to separate bounces from multiple light paths. Our …
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