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Title: Power developed by an hydraulic ram
Creator: Brock, W. L., Scott, P. J.
Date: 2009, 1906
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/powerdevelopedby00broc
Thesis (B.S.)--Armour Institute of Technology

Title: Power consumption tests of a bascule bridge
Creator: Schreiber, Armin L., Miller, Stuart N
Date: 2009, 1917
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/powerconsumption00schr
Thesis (B.S.)--Armour Institute of Technology

Title: A practical problem in factory building design and construction
Creator: Koch, Raymond J.
Date: 2009, 1920
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/practicalproblem00koch
Thesis (B.S.)--Armour Institute of Technology

Title: Railway converter substation
Creator: Jacobson, Joseph H
Date: 1911
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/railwayconverter00jaco
Thesis (B.S.)--Armour Institute of Technology

Title: RECTANGULAR HYBRID CURRENT BALANCE POWER FLOW AND SINGLE PHASE INDUCTION MOTOR MODEL FOR DYNAMICS SIMULATION
Creator: Cui, Qiushi
Date: 2012-10-22, 2012-12
Description: Power ow calculation in power systems analysis is fundamental to power systems transient stability simulation. The rst part of this thesis...
Show morePower ow calculation in power systems analysis is fundamental to power systems transient stability simulation. The rst part of this thesis focuses on the hybrid current balance power ow calculation in rectangular coordinates. Details about algorithm initialization, bus admittance matrix, complex bus power injections, mismatch functions and Jacobian matrix are provided. The equations of both the mismatch functions and Jacobian matrix are discussed in terms of di erent bus types from swing bus to PV and PQ buses. The standard Newton-Raphson algorithm step, which are the core of power ow calculation, are demonstrated. Furthermore, the hybrid current balance power ow calculation implementation is shown to be an accurate and e cient algorithm by comparing it with the power balance power ow calculation results. Results from the convergence iteration numbers to accuracy, from total execution time to execution time per iteration, are presented for di erent systems in the form of comparison tables. The next part of this thesis focuses on the dynamic variable initialization. Previously, a sophisticated three-phase transient stability simulator required Matlab for the initialization of dynamic variables of the three phase induction motor load, di erent kinds of generators, exciters, turbine governor and network voltages. Now the multimachine dynamic initialization, as well as along the hybrid power ow calcu- lation code, is implemented in C with the assistance of PETSc. For all of the two-axis model machines, a di erential-algebraic model is used. The machine currents are ex- pressed in terms of the state and network variables. Stator algebraic equations are decomposed rst in both the polar form and the rectangular form. While for the net- work equations, they are explained in power-balance form and current-balance form. Finally, the calculation of all dynamic-state initial conditions and xed inputs, based on the base-case load ow solution are shown step by step. x The last portion of this thesis focuses on single-phase induction motor mod- eling. The single phase induction motor forms a large portion of the load in todays power systems load and portrays signi cantly di erent behavior than a three phase motor. A single-phase induction motor model using dynamic phasors is used to rep- resent the compressor portion of the behavior of a typical residential air conditioner load. The initialization and dynamic single-phase induction models are established for a phasor-based transient stability simulator. This model is employed in a voltage ramp test and then validated by a previously published laboratory test. On top of that, the single-phase induction motor is implemented in a three-phase transient sta- bility simulator. Three-phase and single-phase faults are applied on the motor bus in a simple 9-bus system. From the response of the three-phase voltage magnitudes and the rotor speed, the motor stall and delayed voltage recovery phenomena are observed and discussed. The single-phase induction motor model is also compared to the CIM5 three-phase induction motor model.
M.S. in Electrical Engineering, December 2012
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Title: The proposed Washington Street Pavement Waukegan, Illinois
Creator: Douthitt, Merton James
Date: 2009, 1913
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/proposedwashingt00dout
Thesis (B.S.)--Armour Institute of Technology

Title: Proposed three span arch subway of the C. M. & ST. P. RY. over Humboldt boulevard
Creator: Greifenhagen, P. F, Koch, Raymond J., Walin, H. S.
Date: 2009, 1913
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/proposedthreespa00grei
Thesis (B.S.)--Armour Institute of Technology, 1913 B.S. in Civil Engineering, 1913

Title: Motive power and distribution charges of a packing plant
Creator: Waldemar Sir, Walter
Date: 2009, 1918
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/motivepowerdistr00wald
Thesis (B.S.)--Armour Institute of Technology

Title: TRAINING DATA SELECTION FOR MEDICAL IMAGE QUALITY ASSESSMENT BY MODEL OBSERVER
Creator: GÓmez, Iris Lorente
Date: 2014, 2014-07
Description: In medical imaging, it is widely accepted that image quality should be evaluated using a task-based approach in which one evaluates human...
Show moreIn medical imaging, it is widely accepted that image quality should be evaluated using a task-based approach in which one evaluates human observer performance for a given diagnostic task. Unfortunately, human observer studies with expert readers are costly and time-demanding. To confront this problem, model observers (MO) have been used as surrogates for human observers. MOs typically can accurately predict human diagnostic performance but some types of MOs require sets of images and human observer scores for tuning (training). Current literature does not provide guidance on how to choose the training data set. Therefore, in this work we present two different approaches to the problem of selecting good MOs training data sets. One is based on an active learning methodology (AL) and the second uses Frechet and Bhattacharyya distances between image-feature distributions to select a small subset of images, previous to performing human study, which together are representative and will be subject to the next human observer study. The presented results indicate that the proposed data set selection approaches, together with a learning model observer based on the Relevance Vector Machine (RVM), has excellent performance in predicting human observer performance as measured by the area under the receiver operating curve (AUC).
M.S. in Electrical Engineering, July 2014
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Title: Computing transition and flow development in turbulent channel flows
Creator: Sallot, Thomas
Date: 2012-12-05, 2012-12
Description: A zero pressure gradient (ZPG) boundary layer in a wind-tunnel test section was computed using two-dimensional CFD simulations utilizing two...
Show moreA zero pressure gradient (ZPG) boundary layer in a wind-tunnel test section was computed using two-dimensional CFD simulations utilizing two RANS models, Spalart-Allmaras (SA) and k􀀀! (SST), and two di erent software suites; i.e., Fluent and STAR-CCM+. These computations have been compared and they revealed that the SST model yields better agreement with experimental data than the SA. They also demonstrate that STAR-CCM+ has very little sensitivity to small pressure gradients, and that is why its computation for the ZPG are not exactly matching the reference data (experiment and DNS). Further analysis of the two softwares leads to the conclusion that the transition is dealt with di erently. These di erent approaches can also contribute to the discrepancies observed in the results. The second part of this study is aimed at analyzing the SA model and proposing an approach to improve its results. Tests on the various options proposed in STAR-CCM+ led us to understand how crucial it is to know the e ect of each setup. In addition, several DNS pro les have been used as in ow conditions for the ZPG problem in order to show that this model can be signi cantly improved by using the appropriate in ow conditions past the transition of the boundary layer. Alternatively, incorporating a transition model into the SA computations based on an approach like the en model, or more advanced transition codes, can result in much better agreement with experiments and recent DNS results. The third part of this work is focused on one of the most computed ows in turbulence: the channel ow. The rst goal was to con rm that an implementation of transition similar to that in the ZPG case can be e ectively used for the channel. The second focus was to nd a criterion to establish the required fetch for the fully developed region in a channel. The criterion found here is based on the asymptotic trend of the centerline velocity and its result indicates a longer distance than the usual xi 100 to 150 full channel heights found in the literature, especially at low Reynolds numbers. Finally, this study reveals the three dimensionality of the channel which appears to be impossible to avoid even for extremely high aspect ratios. Using the RSM model, the results document how the channel ow contains secondary motions, sidewall boundary layers and streamwise vortices that exchange energy and momentum between the center and the side walls. Therefore, channel ows need to be calculated as a 3D problem in order to be modeled properly or to be representative of any physical laboratory experiment.
M.S. in Mechanical and Aerospace Engineering, December 2012
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Title: MODELING GENERATOR EXCITERS AND LOAD FOR TRANSIENT STABILITY SIMULATION
Creator: Zhi, Yuan
Date: 2014, 2014-12
Description: The rst part of this research work focuses on modeling and implementation of di erent types of excitation systems for computer simulation of...
Show moreThe rst part of this research work focuses on modeling and implementation of di erent types of excitation systems for computer simulation of power system transient stability. Excitation system modeling is an important part for the comprehensive modeling of generation systems. Generally, the function of an exciter is to provide direct current and voltage to the synchronous generator eld winding, which will help synchronous machine to build up the satisfactory terminal voltages during steady state operation. In addition, the exciter will provide control and protective function for synchronous machine regarding terminal voltage during dynamic situation when a disturbance happens. The second part of this research work focuses on modeling of loads. Load modeling is a very important aspect for studying power system stability. This research work provides a detailed modeling of three types of static load | constant impedance, constant power and constant current load. Also, this work provides a detailed modeling of the induction motor load model for electromechanical transient simulations. These load models will be helpful for studying voltage collapse issues in real power systems.
M.S. in Electrical Engineering, December 2014
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Title: FACTORS ASSOCIATED WITH EMOTION REGULATION FLEXIBILITY
Creator: Murphy, Jonathan W.
Date: 2015, 2015-07
Description: Flexibly switching among emotion regulation strategies has been associated with healthy functioning. In studies with non-clinical samples,...
Show moreFlexibly switching among emotion regulation strategies has been associated with healthy functioning. In studies with non-clinical samples, people have been shown to flexibly choose between regulatory strategies when presented with negative stimuli of varying intensity levels. The present study used the emotion regulation choice task to investigate whether participant characteristics (depressive symptoms and difficulties in emotion regulation) were associated with differences in choice patterns and flexibility between two emotion regulation strategies. In order to compare groups, this study measured participants' sensitivity to negative stimuli by adding an image rating task before the choice procedure. Additionally, given the hierarchical structure of the data, this study utilized multi-level modeling analyses, which were more appropriate than analyses used in previous emotion regulation choice studies. The results show that participants with low and high levels of depressive symptoms have similar emotion regulation choice patterns and showed similar flexibility between strategies. On the other hand, particular difficulties in emotion regulation were associated with blunted emotion regulation flexibility. These findings suggest that particular difficulties in emotion regulation might better predict blunted emotion regulation flexibility between strategies than depressive symptoms. Finally, suggestions for future research in emotion regulation flexibility are provided.
M.S. in Psychology, July 2015
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Title: ELECTROCHEMICAL ANALYSIS OF ACTINIDES IN MOLTTIN SALTS
Creator: Tylka, Magdalena
Date: 2015, 2015-05
Description: In electrochemical studies, the measured parameter (potential, current, or charge) is related to the quantity of the analyte in the solution...
Show moreIn electrochemical studies, the measured parameter (potential, current, or charge) is related to the quantity of the analyte in the solution and therefore can serve as an analytical signal for concentration measurements. The aim of this work is to develop high precision, real-time, quantitative, electroanalytical measurements of the concentrations of actinide chlorices in molten salts for monitoring pyrochemical process. Possible reasons for discrepancies found in the literature among electrochemically-measured values have been identified and methods to improve their precision have been established. Specific procedures were developed to refine both experimental techniques and data analysis methods. By following these procedures, precise and reproducible measurements were obtained for U and Pu in LiCl/KCl eutectic at 500°C. The effect of varying concentration on the method was investigated. In particular, the applicability of the techniques at high concentration of the analyte is evaluated. In addition to this, samples containing more than one analyte are considered, and the development of a modified data analysis method, required for their quantitative analysis, is described. Comparison of results obtained from improved electroanalytical measurements, and inductively coupled plasma atomic emission spectroscopy (ICP-AES) analysis, are shown and discussed. In addition to this, analysis of current-time transients, following a potential step, provide fundamental information about nucleation and growth of actinides on inert electrodes from molten salts. The effect of different concentrations of electroactive species, the applied potential, and the material of the working electrode on nucleation parameters are examined and discussed.
Ph.D. in Chemical Engineering, May 2015
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Title: SMART GRID COORDINATION IN BUILDING HVAC SYSTEMS
Creator: Mendoza Serrano, David Israel
Date: 2013, 2013-12
Description: In the context of real time electricity pricing, energy consumption by Heating, Ventilation, and Air Conditioning (HVAC) systems is usually...
Show moreIn the context of real time electricity pricing, energy consumption by Heating, Ventilation, and Air Conditioning (HVAC) systems is usually heaviest when prices are at their highest. In order to reduce expenditure while adequately maintaining indoor comfort conditions, Economic Model Predictive Control (EMPC) policies can be implemented in conjunction with Thermal Energy Storage (TES). This equipment con guration allows the time-shift of chiller power consumption away from periods of high demand to periods of low energy cost. Overcoming the main drawbacks intrinsic to EMPC policies constitutes the initial focus of this work. The rst issue concerns the susceptibility of EMPC to disturbance prediction quality, as this algorithm relies on weather and electricity price forecasts to generate control actions. Thus, two gray box models of increasing complexity are developed to illustrate the fundamentals of disturbance forecasting with shaping lters. Additionally, two data driven models are also presented for comparison. The discussion is then expanded to forecasting quality based on the amount of information available, and proper economic evaluation of these scenarios with gray and black box models is performed. The second issue of interest is related to the susceptibility of EMPC to prediction horizon, since this methodology computes control actions based on a receding horizon framework. Usually, control policies that reduce expenditure the most also rely on relatively large horizon sizes. These implementations tend to result in considerable computational burden. While horizon size reductions are commonly used to lessen the associated computational needs, they also carry signi cant economic performance degradations. To solve this issue, a novel Economic Linear Optimal Control (ELOC) capable of enforcing constraints statistically is developed. Additionally, the ELOC feedback is used to generate a receding horizon formulation capable of enforcing point-wise-in-time constraints, termed constrained viii ELOC. This algorithm is virtually insensitive to horizon size while retaining and even surpassing the economic performance of EMPC. The third major achievement of this work is the development of an HVAC equipment sizing and optimization methodology. This goal is achieved through the implementation of a gradient search algorithm designed to predict returns on investment based on a net present value analysis. As part of this technique, the ELOC and constrained ELOC methodologies are expanded for equipment design. The successful implementation and convergence of this numeric optimization is illustrated with a case study.
PH.D in Chemical Engineering, December 2013
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Title: Combined Optimization Model for Sustainable Energization Strategy
Creator: Abtew, Mohammed
Date: 2011-04-01, 2011-05
Description: Access to energy is a foundation to establish a positive impact on multiple aspects of human development. Both developed and developing...
Show moreAccess to energy is a foundation to establish a positive impact on multiple aspects of human development. Both developed and developing countries have a common concern of achieving a sustainable energy supply to fuel economic growth and improve the quality of life with minimal environmental impacts. The Least Developing Countries (LDCs), however, have different economic, social, and energy systems. Prevalence of power outage, lack of access to electricity, structural dissimilarity between rural and urban regions, and traditional fuel dominance for cooking and the resultant health and environmental hazards are some of the distinguishing characteristics of these nations. Every year, 1.5 million people die due to exposure to indoor biomass stoves fumes. Rising demand for the decreasing supply of fuel wood is evident. Desertification is estimated to put 135 million people at a risk of being driven away from their land if no action is taken by 2020. Most energy planning models have been designed for developed countries' socio-economic demographics and have missed the opportunity to address special features of the poor countries. Therefore, it is critical to develop models that address the unique social-economic demographics of LCDs and are instrumental to appropriate energy policies choices. Such models must consider energization beyond electricity supply and help reduce over reliance of LCDs on limited energy sources that are fraught with high volatility and health hazard, thus providing a stable supply of energy that these countries badly need to meet their sustainable development goals. An improved mixed-integer programming energy-source optimization model is developed to address limitations associated with using current energy optimization models for LDCs, tackle development of the sustainable energization strategies, and ensure diversification and risk management provisions in the selected energy mix. The Model predicted a shift from traditional fuels reliant and weather vulnerable energy source mix to a least coast and reliable modern clean energy sources portfolio, a climb on the energy ladder, and scored multifaceted economic, social, and environmental benefits. At the same time, it represented a transition strategy that evolves to increasingly cleaner energy technologies with growth as opposed to an expensive solution that leapfrogs immediately to the cleanest possible, overreaching technologies.
Ph.D. in Management Science, May 2011
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Title: Scientific location of carhouses in the Calumet district, Chicago
Creator: Ferrenz, Tirrell John
Date: 2009, 1915
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/scientificlocati00ferr
Thesis (B.S.)--Armour Institute of Technology

Title: Selection of prime movers for electric power plants
Creator: Smalley, J. S.
Date: 2009, 1907
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/selectionofprime00smal
Thesis (B.S.)--Armour Institute of Technology; Bibliography: leaves 17-28

Title: Selection of motor equipment for the electrification of the C.R.I. & P.RY.
Creator: Collins, F. C., Souther, S. A.
Date: 2009, 1908
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/selectionofmotor00coll
Thesis (B.S.)--Armour Institute of Technology

Title: Secondary stresses in bridges
Creator: Stein, Aaron, Passialis, Constantine
Date: 2009, 1920
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/secondarystresse00stei
Thesis (B.S.)--Armour Institute of Technology;Includes bibliographical references (leaf...
Show morehttp://www.archive.org/details/secondarystresse00stei
Thesis (B.S.)--Armour Institute of Technology;Includes bibliographical references (leaf 31) and index
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Title: Secondary stresses in 112 foot railroad pony truss
Creator: Appelbaum, A., Isaacson, S.
Date: 2009, 1921
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/secondarystresse00appe
Thesis (B.S.)--Armour Institute of Technology;Bibliography: leaf 6

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