Matching Items (14)

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Engineering, Border Walls & Wildlife: The Case of the US-Mexico Border

Description

The purpose of this study is to spark a discussion for engineers and their firms to consider the impact of border barriers on wildlife. The focus of this study is

The purpose of this study is to spark a discussion for engineers and their firms to consider the impact of border barriers on wildlife. The focus of this study is to consider if or how engineers make those considerations, such as through design modifications. Barriers block wildlife migration patterns, disabling them from life-sustaining resources. This is particularly important due to an increasing trend in habitat loss, urban development, and climate change. During literature analysis of border barrier impacts, and outreaching to relevant organizations and individuals, there was little to no public documentation or discussion from the engineering community found. Discussion that was found is included in this study, but the lack of connection between conservation and engineering professionals is eminently profound. Therefore, the analysis of studying engineering design considerations additionally studied the relationship between environmental and engineering professionals. Types of research included involves literature analysis of journal articles, reports, project plans for construction, and environmental laws pertinent to wildlife impact.

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Date Created
  • 2020-05

The Social Impact of a Guatemalan School for Mayan Women.

Description

The purpose of this project is to use powerful visual storytelling techniques to convey a social need and an effective solution. Guatemala is a third world country, where poverty is

The purpose of this project is to use powerful visual storytelling techniques to convey a social need and an effective solution. Guatemala is a third world country, where poverty is widespread and the birth rate is high. Among the most economically and educationally disadvantaged are the Mayan women. Arizona nun, Sister Marife Hellman, recognized the needs of this population and founded a school to serve them. Hellman's mission is to provide a quality education to those underserved, so they can become positive leaders in their native communities. The website and video materials produced for this thesis are meant to be used for fundraising purposes on behalf of the school. All funds raised will help Hellman's alumni launch schools in their native areas, giving access to education that has long been nonexistent. Watch the mini-documentary here: www.youtube.com/watch?v=LxTiuwQCH44&t=17s.

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Created

Date Created
  • 2018-05

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The Greater Impact that Micro Influencers Have on Brand Marketing

Description

Micro influencers have become extremely powerful in terms of swaying buying patterns among consumers. This thesis examines the greater impact that micro influencers have on brand marketing. This was completed

Micro influencers have become extremely powerful in terms of swaying buying patterns among consumers. This thesis examines the greater impact that micro influencers have on brand marketing. This was completed through a literature review that highlights the evolution of marketing, influencer marketing, discussing reach, relevance, and resonance, and Generation Z’s purchasing decisions. In addition, we conducted an online survey through Qualtrics that allowed us to analyze the impact social media influencers have. The results of our research indicate that TikTok is used most frequently, but Instagram is where social media influencers are followed most. From our data, we concluded that Generation Z is most influenced by authentic, genuine content created by influencers regardless of follower count. We recommend that a brand interested in reaching Generation Z (we refer to the brand as “Brand X”) use micro influencers, as our research shows that genuine relationships are valued among this generation. We believe that micro influencers are the most valuable to use as they are able to create meaningful relationships with consumers due to their reach, relevance, and resonance with the individuals their content reaches.

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Created

Date Created
  • 2021-05

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The Greater Impact that Micro Influencers Have on Brand Marketing

Description

Micro influencers have become extremely powerful in terms of swaying buying patterns among consumers. This thesis examines the greater impact that micro influencers have on brand marketing. This was completed

Micro influencers have become extremely powerful in terms of swaying buying patterns among consumers. This thesis examines the greater impact that micro influencers have on brand marketing. This was completed through a literature review that highlights the evolution of marketing, influencer marketing, discussing reach, relevance, and resonance, and Generation Z’s purchasing decisions. In addition, we conducted an online survey through Qualtrics that allowed us to analyze the impact social media influencers have. The results of our research indicate that TikTok is used most frequently, but Instagram is where social media influencers are followed most. From our data, we concluded that Generation Z is most influenced by authentic, genuine content created by influencers regardless of follower count. We recommend that a brand interested in reaching Generation Z (we refer to the brand as “Brand X”) use micro influencers, as our research shows that genuine relationships are valued among this generation. We believe that micro influencers are the most valuable to use as they are able to create meaningful relationships with consumers due to their reach, relevance, and resonance with the individuals their content reaches.

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Agent

Created

Date Created
  • 2021-05

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Downloading Dance: How the Media has Revolutionized the Dance Industry

Description

Throughout the 20th and 21st centuries, the dance industry has exponentially grown in its population and representation. As dance studios, companies, media platforms and films, dance industry continue to expand,

Throughout the 20th and 21st centuries, the dance industry has exponentially grown in its population and representation. As dance studios, companies, media platforms and films, dance industry continue to expand, there has been a substantial increase in the number of dancers around the world. Dancers are becoming more diverse with the styles they perform and how they perform a piece. One major factor to the growth of the dance industry is the ever-growing field of digital media and social platforms. These platforms expose people to different dance styles while also allowing dancers to showcase their art. Additionally, dance television shows and films contributed to this growth in the dance industry by developing a reputation and awareness of what dance is to the public. This project will analyze how certain aspects of the media influenced the modern dance industry, and whether this created a positive or negative impact.

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Created

Date Created
  • 2020-05

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Blank National Park

Description

Our thesis project, blanknationalpark.com, asked one question : how is climate change impacting National Parks in America? We decided to travel to three different areas: Joshua Tree, Glacier and Everglades

Our thesis project, blanknationalpark.com, asked one question : how is climate change impacting National Parks in America? We decided to travel to three different areas: Joshua Tree, Glacier and Everglades National Park. It didn’t take long to discover that there was never a definitive answer. The effects of climate change looked different in every park we visited. Joshua Tree was struggling with changes in temperature, climate regime and an increase in fires. The U.S Geological Survey predicted that all of the glaciers in Glacier National Park could be gone by 2030. Everglades National Park was facing the constant threat of sea-level rise, invasive species and stronger hurricanes. However, in every park, one thing was certain - they all would not have their iconic features in the future due to climate change. For our thesis, we created blanknationalpark.com to emphasize the fact that Joshua Tree National Park won’t have Joshua Trees in the coming centuries, glaciers would cease to exist in Glacier National Park and the entire Everglades ecosystem itself will be underwater in the next century and a half. Thus, our project name, “Blank National Park”, pays tribute to the uncertainty of what these famous landscapes could look like in the future. Our main goal was to provide the public with a visual experience that is not only informative but engaging so that we could provide an educational experience about a critical situation without appearing too dismal. We chose to include our last page, ‘Solutions’, to establish hope for the future, and encourage people to take action to help preserve National Parks and the world we live in.

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Agent

Created

Date Created
  • 2020-05

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Physical Activity Bursts: Impact of Exercise in Elementary School

Description

Research indicates that social changes have resulted in children exercising much less than in the past. This is problematic since physical activity throughout the elementary school day is imperative, because

Research indicates that social changes have resulted in children exercising much less than in the past. This is problematic since physical activity throughout the elementary school day is imperative, because exercise improves academic focus, boosts mood, and leads to a healthier lifestyle. Exercising is pivotal for all students but even more so for students in the Special Education classroom who may rely on physical activity as a way of regulating their emotions. Depending on the school, students may only exercise at recess and during their Physical Education electives. Lack of physical activity can be detrimental to the academic and physical success of a student.
This thesis explores the impact of physical activity--what I have chosen to call “moments of movement” -- inside the classroom throughout the elementary school day. Journal-based observations were made by a student teacher placed in a special education 4th-6th grade writing and reading resource classroom from August-December of 2018 and a fourth grade general education classroom from January-May of 2019. All observations were made at Adams Elementary School, a Title 1 school, in the Mesa, Arizona school district. At this K-6 grade school, many students live with the challenges of poverty, neglect, unstable family dynamics, and trauma. Because the teachers work tirelessly to cultivate a sense of home for the students, there is a strong emphasis on non-traditional teaching methods, including the AVID program and the Kagan, and Tribes strategies.
Ms. Norris (the special education teacher) and Ms. Foss (the fourth grade teacher) both have strong backgrounds in fitness and naturally incorporate physical activity in their classrooms, which is not something typically found at elementary schools. In this paper, physical activity strategies in classrooms of Ms. Norris and Ms. Foss are analyzed, as well as the benefits of implementing these strategies. The impact of these “moments of movement” on the whole class and individual students is discussed, and suggestions are made to help educators incorporate “moments of movement” into their own classrooms. Educators can use the strategies present at Adams Elementary School as a model for incorporating exercise in their own classrooms.

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Date Created
  • 2019-05

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Effect of foreign object damage on fatigue of inconel 718 at elevated temperature (1050 °C)

Description

The use of solar energy to produce power has increased substantially in the past few decades. In an attempt to provide uninterrupted solar power, production plants may find themselves having

The use of solar energy to produce power has increased substantially in the past few decades. In an attempt to provide uninterrupted solar power, production plants may find themselves having to operate the systems at temperatures higher than the operational capacity of the materials used in many of their components, which affects the microstructural and mechanical properties of those materials. Failures in components that have been exposed to these excessive temperatures have been observed during operations in the turbine used by AORA Solar Ltd. A particular component of interest was made of a material similar to the Ni-based superalloy Inconel 718 (IN 718), which was observed to have damage that is believed to have been initiated by Foreign Object Damage (FOD) and worsened by the high temperatures in the turbine. The potential links among the observed failure, FOD and the high temperatures of operation are investigated in this study.

IN718 is a precipitation hardened nickel superalloy with resistance to oxidation and ability to withstand high stresses over a wide range of temperatures. Several studies have been conducted to understand IN 718 tensile and fatigue properties at elevated temperatures (600- 950°C). However, this study focuses on understanding the behavior of IN718 with FOD induced by a stream of 50 μm Alumina particles at a velocity of 200 m/s. under high cycle fatigue at an elevated temperature of 1050 °C. Tensile tests were conducted for both as-received and heat treated (1050 °C in air for 8hrs) samples at room and high temperature. Fatigue tests were performed at heat treated samples at 1050 °C for samples with and without ablation. The test conditions were as similar as possible to the conditions in the AORA turbine. The results of the study provide an insight into tensile properties, fatigue properties and FOD. The results indicated a reduction in fatigue life for the samples with ablation damage, where crack nucleation occurred either at the edge or inside the ablation region and multisite cracking was observed under far field stresses that were the same than for pristine samples, which showed single cracks. Fracture surfaces indicate intergranular fracture, with the presence of secondary cracks and a lack of typical fatigue features, e.g., beach marks which was attributed to environmental effects and creep.

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Created

Date Created
  • 2017

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Towards High Spatial Resolution Vibrational Spectroscopy in a Scanning Transmission Electron Microscope

Description

Vibrational spectroscopy is a ubiquitous characterization tool in elucidating atomic structure at the bulk and nanoscale. The ability to perform high spatial resolution vibrational spectroscopy in a scanning transmission electron

Vibrational spectroscopy is a ubiquitous characterization tool in elucidating atomic structure at the bulk and nanoscale. The ability to perform high spatial resolution vibrational spectroscopy in a scanning transmission electron microscope (STEM) with electron energy-loss spectroscopy (EELS) has the potential to affect a variety of materials science problems. Since 2014, instrumentation development has pushed for incremental improvements in energy resolution, with the current best being 4.2 meV. Although this is poor in comparison to what is common in photon or neutron vibrational spectroscopies, the spatial resolution offered by vibrational EELS is equal to or better than the best of these other techniques.

The major objective of this research program is to investigate the spatial resolution of the monochromated energy-loss signal in the transmission-beam mode and correlate it to the excitation mechanism of the associated vibrational mode. The spatial variation of dipole vibrational signals in SiO2 is investigated as the electron probe is scanned across an atomically abrupt SiO2/Si interface. The Si-O bond stretch signal has a spatial resolution of 2 – 20 nm, depending on whether the interface, bulk, or surface contribution is chosen. For typical TEM specimen thicknesses, coupled surface modes contribute strongly to the spectrum. These coupled surface modes are phonon polaritons, whose intensity and spectral positions are strongly specimen geometry dependent. In a SiO2 thin-film patterned with a 2x2 array, dielectric theory simulations predict the simultaneous excitation of parallel and uncoupled surface polaritons and a very weak excitation of the orthogonal polariton.

It is demonstrated that atomic resolution can be achieved with impact vibrational signals from optical and acoustic phonons in a covalently bonded material like Si. Sub-nanometer resolution mapping of the Si-O symmetric bond stretch impact signal can also be performed in an ionic material like SiO2. The visibility of impact energy-loss signals from excitation of Brillouin zone boundary vibrational modes in hexagonal BN is seen to be a strong function of probe convergence, but not as strong a function of spectrometer collection angles. Some preliminary measurements to detect adsorbates on catalyst nanoparticle surfaces with minimum radiation damage in the aloof-beam mode are also presented.

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Date Created
  • 2020

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Failure Modeling in an Orthotropic Plastic Material Model under Static and Impact Loading

Description

An orthotropic elasto-plastic damage material model (OEPDMM) suitable for impact analysis of composite materials has been developed through a joint research project funded by the Federal Aviation Administration (FAA) and

An orthotropic elasto-plastic damage material model (OEPDMM) suitable for impact analysis of composite materials has been developed through a joint research project funded by the Federal Aviation Administration (FAA) and the National Aeronautics and Space Administration (NASA). The developed material model has been implemented into LS-DYNA®, a commercial finite element program. The material model is modular comprising of deformation, damage and failure sub-models. The deformation sub-model captures the rate and/or temperature dependent elastic and inelastic behavior via a visco-elastic-plastic formulation. The damage sub-model predicts the reduction in the elastic stiffness of the material. The failure sub-model predicts when there is no more load carrying capacity in the finite element and erosion of the element from the finite element model. Most of the input parameters required to drive OEPDMM are in the form of tabulated data. The deformation sub-model is driven by a set of tabulated stress-strain data for a given strain-rate and temperature combination. The damage sub-model is driven by tabulated damage parameter-strain data. Two failure sub-models have been implemented – Puck Failure Model and Generalized Tabulated Failure Model. Puck Failure Model requires scalar parameters as input whereas, the Generalized Tabulated Failure Model is driven by a set of equivalent failure strain tabulated data. The work presented here focuses on the enhancements made to OEPDMM with emphasis on the background, development, and implementation of the failure sub-models. OEPDMM is verified and validated using a carbon/epoxy fiber reinforced composite. Two validation tests are used to evaluate the failure sub-model implementation - a stacked-ply test carried out at room temperature under quasi-static tensile and compressive loadings, and several high-speed impact tests where there is significant damage and material failure of the impacted panel. Results indicate that developed procedures provide the analyst with a reasonable and systematic approach to building predictive impact simulation models.

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Date Created
  • 2020