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Title: IMPACT OF INSTRUCTION ON A PERSONALITY QUESTIONNAIRE
Creator: Fleischer, Michael
Date: 2011-07, 2011-07
Description: Instructions are an integral part of any exam. The present study examines the effects of instructions to avoid the middle answer on a...
Show moreInstructions are an integral part of any exam. The present study examines the effects of instructions to avoid the middle answer on a personality questionnaire. We obtained IRT parameters from participants responding to the 16PF Questionnaire with and without this instruction and used a Monte Carlo simulation based on these parameters. Results indicated that when participants were instructed to avoid the middle response, we observed lower item-total correlations and increased difficulty in setting percentiles. Previous research, implications and limitations of this study are discussed as well.
M.S. in Psychology, July 2011
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Title: IN SITU X-RAY ABSORPTION SPECTROSCOPY STUDY OF TIN ANODE NANOMATERIALS FOR LITHIUM-ION BATTERIES
Creator: Pelliccione, Christopher J.
Date: 2015, 2015-05
Description: Tin is an attractive alternative to replace traditional carbon based anodes in lithium-ion batteries (LIBs) due to the nearly three-fold...
Show moreTin is an attractive alternative to replace traditional carbon based anodes in lithium-ion batteries (LIBs) due to the nearly three-fold increase in theoretical capacity over carbon. However, metallic tin su↵ers from volumetric expansion of the crystal structure during initial lithium insertion that quickly degrades the material and reduces the performance of the battery. Various techniques have been previously investigated with the goal of suppressing this destructive expansion by incorporating oxygen or a lithium-inactive metal into the tin to provide structural support and mitigate volumetric expansion. These materials show increased capacity retention compared to metallic tin, but still su↵er from capacity fading. The nature of these structural degradations must be fully understood to permit engineering of materials that avoid these destructive tendencies and can be considered as viable options for LIBs. In situ X-ray absorption spectroscopy (XAS) measurements were acquired on Sn, SnO2, Sn3 O2(OH)2, Cu6Sn5 and Ni3Sn4 nanoparticle anodes for LIBs. Accompanying the electrochemical characterization conducted on each material, the local atomic structure was modeled as a function of potential during the first charge and also as a function of charged/discharged states for several cycles. The extended X-ray absorption fine structure (EXAFS) theoretical modeling included the first unambiguous observation of Sn-Li coordination numbers and atomic distances in tin-based anode materials. From correlating the electrochemical performance to the EXAFS analysis, the long-term capacity retention of tin-based anodes is dependent on the structural deformations that occur during the first charge. The conversion of oxygen to amorphous Li2O, and the network that it forms, has a dramatic e↵ect on the kinetics of the system and the stability of the local metallic tin structure.
Ph.D. in Physics, May 2015
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Title: MAGNETIC RESONANCE IMAGING (MRI) OF CALIBRATION PHANTOMS AND MRI CONTRAST TRENDS IN POLYNUCLEAR CHROMIUM COMPOUNDS
Creator: Sun, Wanlin
Date: 2012-04-25, 2012-05
Description: This thesis is composed of two projects. The first project involves the investigation of a series of Cr+++ compounds as potential magnetic...
Show moreThis thesis is composed of two projects. The first project involves the investigation of a series of Cr+++ compounds as potential magnetic resonance imaging (MRI) contrast agents. The second part of the thesis involves collaborative work with the National Institute of Standards and Technology (NIST) in the development of an MRI calibration phantom designed to correlate data from different MRI institutions for long term studies of diseases such as Alzheimer’s. Data from the Cr+++ project indicated that these compounds show some promise for enhancement of MRI images. The second project resulted in a NIST phantom being built based partly upon data obtained here at IIT.
M.S. in Chemistry, May 2012
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Title: IMPLICITLY-COUPLED ELECTROMECHANICAL AND ELECTROMAGNETIC TRANSIENT ANALYSIS
Creator: Zhang, Xu
Date: 2015, 2015-05
Description: The operation of an electrical power system involves continuous electromechanical and electromagnetic interaction of energy among the system...
Show moreThe operation of an electrical power system involves continuous electromechanical and electromagnetic interaction of energy among the system components. Under normal operation, the system behavior could be represented by voltage and current phasors in the frequency domain. However, the system may not work on the fundamental frequency following some fast transients (loss of generator, switching event, system disturbance and etc.), at this time we need specific tools to investigate the dynamic scenario. Transient stability (TS) simulator, also referred to as electromechanical transient simulator, running at time steps on the order of milliseconds and only capable of capturing the fundamental frequency transient, is used for the analysis of largescale networks. On the other hand the electromagnetic transient (EMT) simulator running at time steps on the order of microseconds, with detailed equipment modeling is capable of analyzing transients over a wider frequency spectrum; however, it is computationally onerous, so it is typically restricted to the analysis of small networks. An electromechanical-electromagnetic transient simulator is the combination of a TS simulator and an EMT simulator, inheriting the merits of both programs. The basic idea of an electromechanical-electromagnetic simulator is to decompose the power system into two broad categories: a large connected TS network (main network) and smaller EMT network (detailed subsystem). The main network is running on TS simulator while the detailed subsystem is running on the EMT simulator. The implicitly-coupled electromechanical and electromagnetic simulator has TS and EMT simulators coupled at the equation solution level, which could ensure the consistence of the solution between TS and EMT simulation. Instead of using fundamental frequency equivalent model of the main network in EMT simulation of implicitly-coupled electromechanical and electromagnetic simulator, a frequency dependent network equivalent (FDNE) model is utilized to preserve the non-fundamental frequency fast transient response of the main network. Along with the implementation of FDNE model, this research work also propose a new TS simulator that is capable of running three-phase transient stability simulation under fundamental and non-fundamental frequency simultaneously. Furthermore the performance of implicitly-coupled electromechanical-electromagnetic transient simulator could be improved with the implementation of this new TS simulator.
Ph.D. in Electrical and Computer Engineering, May 2015
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Title: EXPLOITING KNOWLEDGE IN UNSUPERVISED OPEN INFORMATION EXTRACTION
Creator: Merhav, Yuval
Date: 2012-12-03, 2012-12
Description: The extraction of structured information from text is a long-standing challenge in Natural Language Processing (NLP) which has been...
Show moreThe extraction of structured information from text is a long-standing challenge in Natural Language Processing (NLP) which has been reinvigorated with the ever- increasing availability of user-generated textual content Online. The ability to extract interesting and important pieces of information from text documents is crucial for large scale language understanding, which powers modern Web search engines. The eld of Open Information Extraction (Open IE) o ers a way to auto- matically discover relations from large and heterogeneous text collections. Since it is di cult to obtain adequate training data for Open IE, unsupervised approaches that rely on rules and clustering are popular. However, the major trend in unsupervised Open IE has been to borrow algorithms and low-level features from other applica- tions such as search, relying on previous work that has been proved to be successful in other domains. This thesis argues that it is essential to use domain and external knowledge in Open IE, and proposes several ways of doing it to achieve substantial performance improvements over state-of-the-art systems. We use three main knowledge sources: (1) a large corpus of unstructured text that is used to learn a language model over relations that can be incorporated into a weighting scheme that outperforms the common tf idf weighting scheme; (2) an external knowledge base such as Wikipedia that is used to extract ne-grained types of entities that yield better understanding of how relations are expressed in English; and (3) domain knowledge extracted from the blogosphere (e.g., the degree of a node in the network) that is used to improve performance at scale.
PH.D in Computer Science, December 2012
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Title: DIGITAL SIGNAL PROCESSING IM PLEMENTATION FOR CONT INUOUS WAVE RADAR SYSTEMS
Creator: Moninuola, Olufola
Date: 2013-04-30, 2013-05
Description: Real-time imaging radar design for human feature extraction is an emerging field that requires radar architectures with short dwell time, high...
Show moreReal-time imaging radar design for human feature extraction is an emerging field that requires radar architectures with short dwell time, high resolution and low hardware complexity. The Successive Multi Frequency Continuous Wave (S-MFCW) technique has been proposed as a suitable architecture to achieve a comparable resolution with the Frequency Modulated Continuous Wave (FMCW) technique without sacrificing short dwell time and low hardware complexity. The hardware complexity and power consumption of these two techniques were investigated in this work. Two processor designs based on Read Only Memory (ROM) lookup tables and Coordinate Rotation Digital Computer (CORDIC) algorithm were implemented for the SMFCW technique on Xilinx’s Virtex-6 Field Programmable Gate Array (FPGA) and compared with the Fast Fourier Transform (FFT) implementation of the FMCW technique. Hardware complexity comparisons were based on the amount of FPGA resources utilized in each design while power consumption results were generated after place and route. The CORDIC-based implementation of the S-MFCW technique was found to reduce the hardware complexity of the FMCW technique by a factor of three while the ROM implementation was found to consume the least power.
M.S. in Electrical Engineering, May 2013
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Title: EVALUATION OF A NON-DESTRUCTIVE HIGH VOLTAGE TECHNIQUE FOR THE DETECTION OF PINHOLE LEAKS IN SEMI-RIGID PACKAGES FOR FOODS
Creator: Gera, Mohit
Date: 2012-04-23, 2012-05
Description: High-voltage leak detection (HVLD) is an emerging technology that has successfully been used to test the integrity of flexible food packages....
Show moreHigh-voltage leak detection (HVLD) is an emerging technology that has successfully been used to test the integrity of flexible food packages. It allows for nondestructive, fully automatic, and 100% on-line detection of pinholes as small as 10 μm in diameter. The applicability of this high-voltage technique to various semi-rigid packages, therefore, is of great interest to food industry. This research was conducted to evaluate and validate the effectiveness of the HVLD system and its processing variables on detection of pinhole leaks in semi-rigid packages through systematic factorial design and blind study experiments. The Student’s t-distribution and the corresponding P-value indicated that, among critical factors, package headspace had the greatest effect followed by dielectric constant, pinhole size, and food conductivity (p < 0.01). Strong interactions in between those variables were also observed (p < 0.05). In particular, two evident interactions between dielectric constant and food conductivity, and pinhole size and food conductivity contributed to the model at a significant level. Statistical Z-test analysis of results from blind studies (population size for each combination of package, food, and defect types = 90, defect rate = 0.05) showed that the HVLD technique is significantly effective in determining defective packages (p < 0.05). Results from worst case scenario study showed that there is no significant change in physical properties of plastic laminate lid films after inspection at highest voltage of 10kV. These results suggest that HVLD technique is a promising non-destructive method that can be safely applied to detect pinhole defects in a wide range of plastic based packages.
M.S. in Food Safety and Technology, May 2012
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Title: DETECTION AND ENUMERATION OF SALMONELLA SPP. AND E. COLI O157:H7 IN RAW SILO MILK INTENDED FOR PASTEURIZATION
Creator: Maddi, Neeraj Kumar Reddy
Date: 2011-05-02, 2011-05
Description: Knowledge on the initial bioburden (H0) in raw milk intended for pasteurization is a useful tool to enable risk assessments for both product...
Show moreKnowledge on the initial bioburden (H0) in raw milk intended for pasteurization is a useful tool to enable risk assessments for both product and process safety. In a nationwide survey, a total of 214 comingled raw milk samples were collected from unique silos in different regions of United States. The samples were analyzed for prevalence and levels of Salmonella spp. and Escherichia coli O157:H7 using the VIDAS® (bioMerièux) SLM and ECPT assays and cultural methods. Total Viable Count (TVC), Coliforms (CC), Enterobacteriaceae (EB), E. coli (EC) and Staphylococcus aureus (STA) counts in raw silo milk were analyzed using the TEMPO® Automated System (bioMerièux). Aerobic spore counts (ASC) in raw milk were analyzed by a modified Standard Method. Raw milk samples were directly streaked on to Methicillin-resistant Staphylococcus aureus (MRSA) agar. Forty seven out of 214 samples (21.96%) were positive for Salmonella spp. at an average level of 0.973 MPN/ml. Nineteen out of 214 samples (9.05%) were positive for E. coli O157:H7 at an average level of 0.069 MPN/ml. Presumptive MRSA was detected in 8 out of 206 (3.88%) raw milk samples; however biochemical analysis did not result in positive confirmation. The average counts for TVC, CC, EB, EC STA and ASC were found to be 4.62, 3.23, 3.56, 3.23, 2.36 and 1.42 log CFU/ml, respectively. There was no correlation observed between the quality indicating microorganisms (TVC, CC, EB, EC and ASC) and the presence of Salmonella spp. or E. coli O157:H7. Based on the literature studies, occurrences of these pathogens in raw milk were at low prevalence rates when the sampling was done at bulk milk tank levels. Higher volume samples taken from commingled silos resulted in higher prevalence rates of pathogens. The results obtained in this study can be used for establishment of Food Safety Objective (FSO) in raw milk intended for pasteurization.
M.S. in Food Safety and Technology, May 2011
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Title: DESIGN OF A COVARIANCE MATRIX FITTER TO MEASURE THE ELECTRON ANTINEUTRINO OSCILLATION PARAMETERS USING NEUTRON HYDROGEN CAPTURE AT THE DAYA BAY EXPERIMENT
Creator: De Arcos Rodr´iguez, Jos´e Fernando
Date: 2015, 2015-12
Description: The Daya Bay experiment provided the first precision measurement of the third mixing angle of the Pontecorvo-Maki-Nakagawa-Sakata matrix (✓13)...
Show moreThe Daya Bay experiment provided the first precision measurement of the third mixing angle of the Pontecorvo-Maki-Nakagawa-Sakata matrix (✓13) using six detectors to determine the relative rates of correlated signals generated from gadolinium neutron capture and positron-electron annihilation gammas in the inverse beta decay process. An additional correlated hydrogen neutron capture signal is produced in the Daya Bay detectors. Its analysis has the potential of producing an independent measurement of the electron antineutrino oscillation parameters. In this thesis a fitter has been designed to measure ✓13 and the squared mass di↵erence (#m2 ee) using the shape information of the hydrogen neutron capture signal generated in the Daya Bay experiment detectors. The main challenges of the hydrogen capture signal are the high accidental background rates in the lower energy region, and hydrogen’s neutron capture cross-section being much lower than gadolinium’s. In order to have a significant signal, we had to use more aggressive selection cuts than those applied in the gadolinium neutron capture analysis, and the fiducial volume was expanded by including the gadolinium-free gamma catcher region. Both background and detector systematic uncertainties studies have been repeated for the new hydrogen signal conditions. The results of these studies have been used to produce the corresponding covariance matrices that account for the uncertainties in a covariance matrix fitter. The fitter is customizable, i.e., energy binning, antineutrino detector configuration, data periods to be fitted, reactor periods, detector response matrices and predictions can be configured using a graphical user interface, providing versatility for further research. The fitter performance has been tested in the two dimensional parameter space S ⇥ D, where S = !sin2(2✓13) 2 [0, 0.002, 0.004, ...0.2]} and D = {#m2 ee 2 [0.0015, 0.00152, 0.00154...0.0035]}, using nominal and statistically fluctuated antineutrino spectrum predictions.
Ph.D. in Physics, December 2015
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Title: Cost of power in Japan (10,000 K. W. steam, gas and hydro-electric plants)
Creator: Sasaki, T.
Date: 2009, 1918
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/costofpowerinjap00sasa
Thesis (B.S.)--Armour Institute of Technology

Title: MISMATCH NEGATIVITY IN EARLY PSYCHOSIS: A META-ANALYSIS
Creator: Cothran, Thomas Patrick
Date: 2014, 2014-05
Description: Abnormalities in the mismatch negativity (MMN) component appear to be specific to schizophrenia. MMN is thought to indicate the occurrence of...
Show moreAbnormalities in the mismatch negativity (MMN) component appear to be specific to schizophrenia. MMN is thought to indicate the occurrence of an automatic initial step in a cognitive process whereby the individual is alerted to changes in the auditory environment. In schizophrenia, a meta-analytic review has suggested that the MMN component is significantly reduced compared to controls. However, the findings related to the MMN component and early psychosis (EP) have been inconsistent. A literature search was conducted for data comparing persons experiencing EP and healthy controls. EP was operationalized as including persons putatively at risk (AR) for developing psychosis and those experiencing first episode psychoses (FEP). Fifteen studies were identified (N = 1076: EP = 628, Controls = 448) that met inclusion criteria. A fixed effect model was used to calculate the overall mean weighted effect size of the total sample (g = -0.380). A planned categorical moderator analysis included 37 effects sizes. A method of moments, random effects model was used to compare group means of categorical variables and assess between-group heterogeneity in reported effect sizes based on clinical group, MMN measurement type, and MMN deviant type. The MMN mean weighted effect sizes for the AR and FEP groups measured in amplitude in the duration deviant condition is g = -.251 and -.801, respectively. The difference in these means is statistically significant (QBetween = 17.77, df = 1, p < .0001). Diagnostic implications and the role of electroencephalography in cognitive rehabilitation are discussed.
M.S. in Psychology, May 2014
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Title: SELECTION TEST SECURITY: ARE SIMULATIONS MORE SUSCEPTIBLE TO TEST SECURITY CONCERNS THAN TRADITIONAL ASSESSMENTS?
Creator: Daisley, Rebecca Roller
Date: 2015, 2015-12
Description: The current study examined whether information about the job simulation portion of a selection assessment battery is more susceptible to a...
Show moreThe current study examined whether information about the job simulation portion of a selection assessment battery is more susceptible to a test security threat than more traditional assessments, where test security is threatened when assessment content is shared. Participants were asked to play the role of a job candidate for a customer service representative. They were given three assessments: a cognitive ability test, a personality inventory, and a job simulation. After completing the assessments, participants were asked to write an e-mail to a hypothetical friend who will also be applying for the job, and include any information that would help their friend in the application process. It was hypothesized that the most information and the most useful information shared by participants would be about the job simulation portion of the assessment battery. The findings supported the hypotheses, suggesting that job simulations are more susceptible to information sharing by applicants than the other assessments, and therefore are exposed to a greater test security threat. The discussion includes implications for practice.
Ph.D. in Psychology, December 2015
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Title: THE EFFECT OF NON-NATIVE ACCENTS ON THE EVALUATION OF APPLICANTS DURING AN EMPLOYMENT INTERVIEW: THE DEVELOPMENT OF A PATH MODEL
Creator: Deprez-sims, Anne-sophie
Date: 2012-04-23, 2012-05
Description: As the workplace becomes increasingly global, organizations are more likely to employ persons from other countries whose accents clearly...
Show moreAs the workplace becomes increasingly global, organizations are more likely to employ persons from other countries whose accents clearly identify them as different from the local workforce. Understanding the impact of accents in the workplace is important because accents can be salient in the same way as ethnicity, age, gender, and skin color and may be a source of employment discrimination. The present study looked at the influence of accents on the evaluation of job applicants during an interview for a human resource manager position. In addition, a path model was developed to understand the accent condition-hiring recommendation relationship. Participants were asked to evaluate an applicant with one of three accents (Midwestern, French, Mexican) at two understandability levels (low and high) by listening to an audiofile. The results showed that the applicant with the Midwestern accent was seen as more hireable than the applicant with the French-low understandability accent but contrary to expectations the applicant with the Mexican accent (low or high level of understandability) was not perceived as significantly less hireable than the French applicant. The path model indicated that the accent condition-hiring recommendation relationship was mediated by similarity, interpersonal attraction and understandability.
Ph.D. in Psychology, May 2012
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Title: Design, construction and tests of multi-vane blower impellers
Creator: Brewer, Fred L., Anderson, Oscar A
Date: 2009, 1915
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/designconstructi00brew
Thesis (B.S.)--Armour Institute of Technology, 1915 B.S. in Mechanical Engineering, 1915

Title: Deposition of zinc on steel
Creator: Koehler, Walter W.
Date: 2009, 1918
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/depositionofzinc00koeh
Thesis (B.S.)--Armour Institute of Technology

Title: Design and arrangement of machinery for a 600 ton beet-sugar factory
Creator: Heuchling, Frederick Gustav
Date: 2009, 1907
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/designarrangemen00heuc
Thesis (B.S.)--Armour Institute of Technology; Bibliography: leaves 53-55

Title: The design and application of apparatus for determining the distribution of water from automatic sprinkler heads
Creator: Rietz, Walter H., Pfafflin, Theo K.
Date: 2009, 1915
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/designapplicatio00riet
Thesis (B.S.)--Armour Institute of Technology

Title: Design of a water works system and elevated steel tank for Franklin, Indiana
Creator: Dittmar, A. A., Eaton, A. W., Jr., Zimmerman, S. L., Meyer, G. J.
Date: 2009, 1908
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/designofwaterwor00ditt
Thesis (B.S.)--Armour Institute of Technology

Title: Design of a water works system for Rushville, Illinois
Creator: Jens, W. G, Anderson, A. G
Date: 2009, 1910
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/designofwaterwor00jens
Thesis (B.S.)--Armour Institute of Technology, 1910 B.S. in Civil Engineering, 1910

Title: Design, plans and specifications for three story reinforced concrete machine shop building
Creator: Ellington, H. S.
Date: 2009, 1908
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/designplansspeci00elli
Thesis (B.S.)--Armour Institute of Technology

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