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 29 for “"large-scale testing"”.
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Large-Scale Testing of Thin Shotcrete Liners
Made available in DSpace on 2014-12-13T19:31:40Z (GMT). No. of bitstreams: 1 7803985.pdf: 9092882 bytes, checksum: 137daf658f8f94343a8d2c4822ca672e (MD5) Previous issue date: 1977
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Large-scale testing of a steel-concrete composite floor system under column loss scenarios
Large-scale floor system tests concluded a collaborative research project that studied the structural integrity of steel gravity framing systems composed of steel beams and girders with composite concrete slab on steel deck. Steel simple beam-column connection tests were conducted at the University …
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An evaluation of item response theory for detecting differential item functioning of examinees' responses to the seventh grade mathematics MEAP test investigating learner characteristics /
… examinees, and others. The consequence of bias testing creates "high stakes" for all stakeholders. During the past 50 years several cycles of dissatisfaction and reform occurred in educational testing (McGhee, 1995). Large scale testing was used to make decisions regarding college entrance, …
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The evaluation of corrosion inhibitors for the repair and rehabilitation of reinforced concrete bridge components
… subject to chloride induced corrosion. Small scale (1 ft.²) reinforced concrete specimens were cast to evaluate the inhibitors effectiveness. A treatment matrix was established to evaluate the inhibitors performance on three ranges of corrosion activity and evaluate the effect of application …
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The potential of sonic wave propagation in engineering rock classification
… and nondestructive tests, and capability for large scale testing. During this research an extensive review of the most widely accepted engineering rock classification systems was undertaken and their principles, advantages and disadvantages are presented in detail. The mathematical equations …
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The Assessment of Sonic Waves and Tracer Gases as Non-Destructive Testing (NDT) Methods for In-Situ Underground Mine Seals
… to assess the effectiveness of non-destructive testing (NDT) technologies to determine seal integrity, which in this case, are explored using sonic waves and tracer gases. Through both small and large scale testing, two NDT methods were evaluated on their abilities to determine integrity of the …
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An Effective and Critical History of Canada’s National Standardized Testing Program
This dissertation explores Canada‟s national large-scale testing program, the School Achievement Indicators Program (SAIP) and its successor, the Pan-Canadian Assessment Program (PCAP) using a methodology built on Foucault‟s theoretical concepts. The product of the research is a critical and …
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Student Culture and Classroom Assessment Practices
… fidelity. Some teachers seemed pre-occupied with large scale testing. They disparaged the No Child Left Behind legislation for precipitating large-scale standards-based testing, heavy reliance on data, and incessant pressure to continually improve scores. Some also held in high disfavor district …
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Hybrid simulation of steel frames with semi-rigid connections
… University of Illinois, as described below. Full-scale hybrid simulation of a semi-rigid steel frame is conducted and its ductility and drift ratios are studied. The experimental component of the simulation comprises a beam-column subassembly with top and seat angle with double web angle …
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Numerical Investigation of Cleavage Fracture in Welded Connections of Steel Moment Resistant Frames
… bars). A set of previously conducted, 15 full-scale tests on T-connections of the pre-Northridge design (A36 beams, A572 columns, E70T-4 welds, backup bars left in place) provide fracture moments to calibrate parameters of the Weibull stress model. This study initially considers quasi-static …
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Shear performance and behavior of long carbon fiber reinforced concrete
<p>”In this study, a laboratory testing program was developed to investigate the shear performance of fiber reinforced concrete beams. Long carbon fibers, to be included with a traditional fresh concrete mix, were developed and their shear performance was evaluated and compared to the performance …
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Transfer and Development Lengths of Steel Strands in Full-Scale Prestressed Self-Consolidating Concrete Bridge Girders
… is developed to predict transfer lengths in full-scale specimens using pullout test data and finite element analysis. The proposed method may be useful when large-scale testing is impractical in terms of time or cost.
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Microperforated Panel (MPP) Absorbers for Impulsive and Narrow-Band Noise Control: Design, Simulation, and Experimental Validation
… angular robustness and broadband absorption. Large-scale testing in a 3 ft × 3 ft × 3 ft acrylic cube chamber under quasi-reverberant conditions validates the practical performance of the MPP system. Both interior and exterior analyses—spanning time- and frequency-domain evaluations—confirm …
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Effect of Sample Size on Irt Equating of Uni-Dimensional Tests in Common Item Non-Equivalent Group Design: a Monte Carlo Simulation Study
Test equating is important to large-scale testing programs because of the following two reasons: strict test security is a key concern for high-stakes tests and fairness of test equating is important for test takers. The question of adequacy of sample size often arises in test equating. However, …
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Impacts of Ignoring Nested Data Structure in Rasch/IRT Model and Comparison of Different Estimation Methods
… which apply the standard Rasch/IRT for the large scale testing data. A simulation study (Study Two) was conducted to address this issue of the effects of ignoring nested data structure in Rasch/IRT models under various conditions, following a simulation study (Study One) to compare the …
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Rangefinding in Fire Smoke Environments
… in a range of conditions. Through small-scale experiments on eleven different sensors, radar and LWIR cameras outperformed other perception sensors within both smoke environments. A LWIR stereo vision system was developed for rangefinding and compared to radar, LIDAR, and visual stereo …
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Transition Detection for Low Speed Wind Tunnel Testing Using Infrared Thermography
Transition is an important phenomenon in large scale, commercial, wind tunnel testing at low speeds because it is an excellent indicator of an airfoil performance. It is difficult to estimate transition through numerical techniques because of the complex nature of viscous flow. Therefore …
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Experimental and Computational Investigation of a Self-Centering Beam Moment Frame (SCB-MF)
… and the experimental program on five two-thirds scale SCB specimens. Key parameters were varied to investigate their effect on global system hysteretic response and their effect on system components. These large-scale experiments validated the performance of the system, allowed the investigation …
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Market Valuation of Convertible Securities of U.S. Airlines
… convertible preferred stocks. Based on their large scale testing, the best performing valuation model produced mean pricing errors of about -0.18%. In this study this model is utilized to assess market valuation of airline convertible preferred stocks.</p> <p>The sample consists of 11 …
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