EET Senior Design Project - IMS Dynamic Display

Indiana University Purdue University IndianapolisThe Indianapolis Motor Speedway Museum has a display transmission that is still actively used in IndyCar today. The museum wants to incorporate this transmission into an interactive display, so guests of all ages can see internal gears spin as well as see the transmission shift between its gears. This project includes mechanical and electrical engineering technology students working together to mount wire motors and sensors. The transmission will have a user-friendly interface allowing the guests to change gears and to turn the transmission on and off. The transmission will be driven by a 24V DC motor and uses a 24V DC linear actuator to rotate a barrel cam to change the position of the forks, allowing the gears to get shifted up and down. A metal enclosure houses the electrical components that provide power and control to the system. The outcome of this project is a failsafe and robust system that will operate within the IMS Museum while being continually updated.Electrical Engineering Technolog

Bridging the Gap Between Inclusive Policy and Inclusive Culture in Secondary Schools

Organisational support from a number of levels needs to be in place if schools are going to achieve success in developing an inclusive school culture. Support at policy level is frequently in place, however the gap between policy and practice is a continuing challenge. In this in-depth study of a secondary school Suzanne Carrington and John Elkins offer insights into the culture of an inclusive school and the processes of translating inclusive policy to inclusive practice

Bridging the gap between inclusive policy and inclusive culture in secondary schools

Organisational support from a number of levels needs to be in place if schools are going to achieve success in developing an inclusive school culture. Support at policy level is frequently in place, however the gap between policy and practice is a continuing challenge. In this in-depth study of a secondary school Suzanne Carrington and John Elkins offer insights into the culture of an inclusive school and the processes of translating inclusive policy to inclusive practice

An Analysis of the Ungraded Reading Program at Snoqualmie Elementary School and Its Influence on Accelerated Achievement in High School

The major hypothesis tested in this study was that there would be no difference between ungraded reading grouping or heterogeneous reading grouping and accelerated learning in academic subjects based on high school subjective grades

Can Institutions Build Unity in Multiethnic States?

We investigate whether political institutions can promote attachment to the state in multiethnic societies. Building on literatures on nationalism, democratization, and conflict resolution, we discuss the importance of attachment, understood as a psychological identification with, and pride in, the state. We construct a model of state attachment, specifying the individual-, group-, and state-level conditions that foster it. Then, using cross-national survey data from 51 multiethnic states, we show that, in general, ethnic minorities manifest less attachment to the states in which they reside than do majorities. Combining the survey data with minority group attributes and country-level attributes, we show that the attachment of minorities varies importantly across groups and countries. Our central finding is that federalism and proportional electoral systems—–two highly touted solutions to ethnic divisions—–have at best mixed effects. These results have implications for state-building and democratic consolidation in ethnically heterogeneous states.Governmen

Comparison of a Traditional and an Inclusive Secondary School Culture

Qualitative research methods were used to conduct case studies of two secondary schools in Australia, focusing on the provision of support for students with different learning needs. Interview data were used to report differences in collective beliefs, values and descriptions of school practice that foster two contrasting school cultures. One of these school cultures is described as more inclusive and the other as more traditional. The study used an inductive approach to analysing interview data to reveal differences between the schools using three main categories: (1) model of support and the role of the special educator; (2) student focused or content-focused culture; and (3) beliefs and attitudes relating to inclusive school¬ing and teacher responsibility for catering for diverse learning needs. The findings of this study have implications for development of inclusive schooling

Computational and experimental investigation of the flow structure and vortex dynamics in the wake of a Formula 1 tire

The flowfield around a 60% scale stationary Formula 1 tire in contact with the ground in a closed wind tunnel was examined experimentally in order to assess the accuracy of different turbulence modeling techniques. The results of steady RANS and Large Eddy Simulation (LES) were compared with PIV data, which was obtained within the same project. The far wake structure behind the wheel was dominated by two strong counter-rotating vortices. The locations of the vortex cores, extracted from the LES and PIV data as well as computed using different RANS models, showed that the LES predictions are closest to the PIV vortex cores. All turbulence models were able to accurately predict the region of strong downward velocity between the vortex cores in the center-plane of the tire, but discrepancies arose when velocity profiles were compared close to the inboard and outboard edges of the tire. These discrepancies could be due to the sensitivity of the CFD solution to the tire shoulder profile, which may not exactly match the experimental profile. In the near wake region directly behind the contact patch of the tire, contour plots of in-plane velocity were compared for all three datasets. The LES simulation again matched well with the PIV data

Turbulent Scalar Mixing in a Skewed Jet in Crossflow: Experiments and Modeling

Turbulent mixing of an inclined, skewed jet injected into a crossflow is investigated using MRI-based experiments and a high-fidelity LES of the same configuration. The MRI technique provides three-dimensional fields of mean velocity and mean jet concentration. The 30° skew of the jet relative to the crossflow produces a single dominant vortex which introduces spanwise asymmetries to the velocity and concentration fields. The turbulent scalar transport of the skewed jet is investigated in further detail using the LES, which is validated against the experimental measurements. Mixing is found to be highly anisotropic throughout the jet region. Isotropic turbulent diffusivity and viscosity are used to calculate an optimal value of the turbulent Schmidt number, which varies widely over the jet region and lies mostly outside of the typically accepted range 0.7 ≤ Sct ≤ 0.9. Finally, three common scalar flux models of increasing complexity are evaluated based on their ability to capture the anisotropy and predict the scalar concentration field of the present configuration. The higher order models are shown to better represent the turbulent scalar flux vector, leading to more accurate calculations of the concentration field. While more complex models are better able to capture the turbulent mixing, optimization of model constants is shown to significantly affect the results