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 35 for “"order analysis"”.
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A Modified Order-Analysis Procedure for Determining Unidimensional Item Sets
… response theory with each subset. While factor analysis is the most commonly proposed procedure for determining dimensionality, a recently developed procedure called order analysis may also prove to be useful for isolating unidimensional item sets.
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Performance of Number of Factors Procedures in Higher Order Analysis: A Comparative Study
<p>Exploratory Factor Analysis (EFA) is one of the primary statistical tools available for the verification of the structure of a psychological measure. In the case of a nested test the structure of the higher levels is verified by performing EFA on the factor scores of the lower levels, a process …
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CT3 as an Index of Knowledge Domain Structure: Distributions for Order Analysis and Information Hierarchies
… using the difficulty strata identified by Order Analysis. The study was conducted by writing a computer program to articulate all possible 5 x 5 matrices. The program also calculated CT3 and KR21 reliability measures for each matrix. The nonparametric technique of Order Analysis was applied …
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Ranking CubeSat communication systems using a value-centric framework
… Tradespace Exploration (MATE) as a first-order analysis tool to aid in the selection of CubeSat communication systems. As CubeSats have become more capable, their need to support ever-increasing amounts of mission data has become imperative. However, the selection of a communications …
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Column Capacity Evaluation For Low-Rise Moment Frame Steel Buildings In Mississippi Subject To Wind And Seismic Hazards
… structures, AISC outlines approaches of second-order analysis. In this study, two of these approaches are considered: Amplified First-Order Analysis Method and Direct Analysis Method. The methods were studied using SAP2000. Amplification of moments in a two-story plane frame subject to a wind …
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Data-Driven Modeling of Tracked Order Vibration in Turbofan Engine
… engines is traditionally performed using an order tracking methodology. Currently, there are no representative and efficient physics-based models with the adequate fidelity to perform vibration predictions in aircraft engines, given various parametric dependencies existing among different …
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First- and Second-Order Properties of Spatiotemporal Point Patterns in the Space-Time and Frequency Domains
… the spatial dependencies. This marginal spatial analysis may lead to misleading results if time is an important factor in the process. In this dissertation we extend the current analysis of spatial point patterns to include a temporal dimension. First- and second-order intensity measures for …
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Design and implementation of multiple address parallel transmission architecture for storage area network
In this paper, we present a parallel transmission architecture for SAN. By using two schedulers on the destination and source addresses of packets, the load of multiple data flows between multiple devices can be balanced in an asymmetrical topology without using special hardware. The SAN …
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Splitting schemes for nonlinear parabolic problems
… in the thesis; the first concerns convergence order analysis, while the second focuses on structure preservation. To motivate the first theme, we note that even if a method has been shown to converge it might be that the speed of convergence is arbitrarily slow. As such a method is unusable in …
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Influence of intense ground motion on p-delta effect amplification
… which is the basis for additional second-order responses. This analysis uses two recorded ground motions for historical large earthquakes (Kocaeli and Tohoku), a sinusoidal curve, and a simulated ground motion based on the 1906 San Francisco earthquake. These ground motions are applied to …
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Observations of decision-making in the mechanical design process in a start-up company
… are provided. In particular, the role of first-order-analysis (FOA) as a powerful tool to predict problems early is presented, the need for order as a necessary condition for growth is discussed, and next steps for the future production ramp-up stage are shared.
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The design of a surface launch and recovery fender for DSRV "Alvin"
… of this study. It was determined, from first order analysis of the surge velocities of these two vessels in recovery position in a sea state 6, that any such bumper or combination of bumpers (i.e. bumper on LULU) would have to absorb 10,000 ft.-lbF., of energy. In order to protect the …
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Tubing analysis and selection process for the frame of the IXA walker
A thorough analysis and test of the frame for a walker was conducted in order to select the optimal size tubing for the walker. Initially a rough first order bending analysis was completed to make an initial decision on tubing size. Finite element analysis was done on the tubing selected to confirm …
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Approximation techniques in network information theory
In the early years of information theory, Shannon and other pioneers in information theory set a high standard for future generations of information theorists by determining the exact fundamental limits in point-to-point communication and source coding problems. Extending their results to network …
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Decomposition of Time Scales in Linear Systems and Markovian Decision Processes
… perturbations as a means of obtaining reduced order models for analysis and control law design. In this thesis we establish how systems having this "two-time-scale" property can use singular perturbation modeling to make this property explicit enabling various reduced order analysis and design …
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Comparison of P-Delta Analyses of Plane Frames Using Commercial Structural Analysis Programs and Current AISC Design Specifications
… different approaches to determining second-order moments in plane frames were studied during this research. The focus of the research was to compare the moments predicted by four different commercially available computer analysis programs and the current design specification, the AISC LRFD …
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Study of subthreshold behavior of FinFet
… the applied gate voltage. This is only a first order analysis; hence the device is simulated in a device simulator Taurus. It is observed that the S-factor increases exponentially for channel lengths Lg < 1.5Tfin. Further, for a constant Lg, the S factor is observed to increase as Tfin …
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THERMAL MANAGEMENT OF ROTATING DETONATION ENGINES
… methods include experimental measurements, low-order analysis, and finite element analysis. A preliminary thermal assessment is performed on the existing RDE to verify the need for cooling. Data obtained from this assessment is used as input to the analytical study of a hypothetical heat …
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A microcomputer-based data acquisition system for diagnostic monitoring and control of high-speed electric motors
… to a spectrum analyzer. Using frequency and order analysis techniques, the real and reactive power inputs to the three·phase motor were measured.
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Adaptive thermal modeling architecture for small satellite applications
… algorithms and techniques used for simple first order analysis. The ATMA consists of the MATLAB based Adaptive Thermal Modeling Tool (ATMT) and its user's manual, as well as the process by which an inexperienced engineer can quickly and accurately perform on-orbit thermal trades studies for a …
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