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 30 for “"two-dimension"”.
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The effect of drive level on cue utilization in a two dimension discrimination task in rats
Also under 9937012702181 in catalogue
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Estudos pseudo-tridimensionais das tensões em galerias no interior de barragens de terra utilizando o método dos elementos finitos
… earth dams. The study consisted of a pseudo-tridimensional analysis, using a two-dimension finite element program, and taking advantage of the plane strain conditions through the dam and buried structure axis. Two structures were analysed, around which total pressure cells had been installed. …
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THE ANALYSIS AND SIMULATION OF HYBRID STEPPING MOTORS USING THE PHASE PLANE APPROACH
… model, the solution of which requires a six dimension space to display the results.</p><p>The six dimension solution can be projected back into the two dimension phase plane. A strong understanding of the implications of this projection is necessary to properly interpret the results. Once …
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Estudo do comportamento de lastros de materiais granulares sobre estacas com capitéis através de modelos reduzidos
… of the granular material, external pressure, and two - and three - dimensional effects. The behaviour observed in the model were compared with that predicted by available theoretical methods. The following points were observed: i) the density of the base is an important factor; ii) the external …
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Experimental and numerical investigation of hydrogen production in a microwave oven
… pure steam plasma is numerically simulated in two-dimension by using the steam plasma kinetics for the first time. Depending on the steam temperature from 110°C to 160°C, the system energy efficiencies are between 3.3-4.8% numerically and 2.2-4.3% experimentally. The exergy efficiencies vary …
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Digital Dissection of Radiographs, Using the Early Cretaceous Bird Confuciusornis and Photoshop CS2TM
… matrix. Radiographs have so much three-dimensional information compressed onto a two-dimension image that it is often impossible to understand the entire skeleton. Obviously, it would be desirable to strip away the readily interpretable skeleton elements and examine those less well …
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Vibrotactile pattern recognition on the torso with one and two dimensional displays
… A second set of experiments involved a one-dimension tactile array of eight tactors worn around the waist. The results indicated that the subjects could recognize the six circumferential patterns presented with an accuracy of 98-100% correct. A further experiment confirmed that the linear …
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Overcoming the far-field diffraction limit via absorbance modulation
… chemistry to confine light to nanoscale dimension. Absorbance modulation lithography and imaging is a near-field technique that does not require scanning of a tip in close proximity or fabrication of a physically small aperture. Near-field apertures are dynamically generated in the …
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Impression of DC: Research for Basic Element of Architecture in Three Dimension
… system, The line is the basic element for a one dimension. The plane is the basic element for a two dimension. By following this logic, the cube is the basic element for the three dimension. After some researches for cube in architecture and geometry, I found there were a lot of examples for …
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Synthetic Aperture Radar Rapid Detection of Range and Azimuth Velocities Implemented in MATLAB
… a MATLAB simulation environment implementing a two-dimension SAR target space, first introduced in Brian Zaharris’ thesis. This work has expanded on this environment by introducing point target azimuth and range velocity detection.</p>
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Advancements of Stepped Planing Hulls
… Seven of these configurations were tested at two different Longitudinal Center of Gravity (LCG) locations. Of all the configurations tested, the stepped hull configurations showed reduced resistance compared to the unstepped hull. The configurations with the largest step height aft showed the …
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Stereological Interpretation of Rock Fracture Traces on Borehole Walls and Other Cylindrical Surfaces
Fracture systems or networks always control the stability, deformability, fluid and gas storage capacity and permeability, and other mechanical and hydraulic behavior of rock masses. The characterization of fracture systems is of great significance for understanding and analyzing the impact of …
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Mesoscopic quantum interference experiments in InGaAs and GaAs two-dimensional systems
… decoherence. This dissertation focuses on two-dimensional (2D) electron systems in $delta-$Si doped n-type In$_{0.64}$Ga$_{0.36}$As/In$_{0.45}$Al$_{0.55}$As, 2D hole systems in Si-doped p-type GaAs/Al$_{0.35}$Ga$_{0.65}$As and C-doped p-type GaAs/\Al$_{0.24}$Ga$_{0.76}$As heterostructures. …
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Density Matrix Renormalization Group Studies of Strongly Correlated Systems in Low Dimensions
… an iterative search of the ground state in one dimension. With more researchers involving in the development of the algorithms based on DMRG, now it has become an optimized unbiased method for the strongly correlated problems. Compared with other numerical methods, the DMRG has one drawback that …
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ULTRA-LOW K DIELECTRIC MATERIALS WITH HIGH BREAKDOWN STRENGTH AND EXCELLENT MECHANICAL PROPERTIES
… organic frameworks, a recently discovered two-dimensional polymer as a promising material for low permittivity material and its mechanical properties. Herein this report, we synthesize large area, ultra-thin, TpPa-1 2D polymer synthesized from 1,3,5-tri formyl phloroglucinol (Tp) aldehyde …
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Accuracy of Global Fit Indices as Indictors of Multidimensionality in Multidimensional Rasch Analysis
… models, especially within the framework of multidimensional Rasch analysis. The results of two simulations studies that investigated how sample size, between-dimension correlation, and test length affect the accuracy of these indices in model recovery using a multidimensional Rasch analysis are …
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Parsimonious Biosonar-Inspired Sensing for Navigation Near Natural Surfaces
… in a complex, natural environment based on two one-dimensional ultrasonic echo streams is feasible. Here, a biomimetic sonar head has been used to collect echo data from recreations of natural foliage in the lab under controlled conditions. This data was used to address the research question …
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Outcome selection in longitudinal analysis of immunological data
… approach integrates statistical modelling with dimension reduction to identify immune outcomes with the most evidence for subgroup differences. By focusing on these subsets, fewer statistical hypotheses are tested simultaneously, preserving power when stricter significance thresholds are applied …
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Experiencing mathematical proves syntax of an astrolabe
… linguistic system. The design proposes a three-dimensional version of mathematical proofs of some of the theorems used for the construction and functioning of the astrolabe. It is an attempt of bringing the proof from the two-dimension of the paper to the three-dimension of the visitor in order …
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High-Speed Photoacoustic Microscopy In Vivo
… correlate with angiogenesis and hypermetabolism--two hallmarks of cancer. To translate PAM to the clinic, both high imaging speed and high spatial resolution are desired. With high spatial resolution, PAM can detect small structural and functional changes early; whereas, high-speed image …
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