Matching Items (141)
Description
The preceding paper analyzes the effects of UV radiation in plastic reinforcement and its effects on the fracture properties of cement-based materials. Three point tests were performed on notched beams, which called for the consideration of the Type II Size Effect. A comparison of the ductility of beams with and without polyethylene plastic powder reinforcement was done through the calculation of the fracture parameters Gf and cf, which represent the initial fracture energy and the characteristic length respectively. Although there was an observed increase in ductile behavior and properties in beams with polyethylene reinforcement, there did not seem to be a significant effect caused by the UV radiation. The hydrophilicity of the polyethylene powder was successfully increased through UV radiation and validated through water retention tests, which showed that the UV-treated polyethylene was retaining more water than the non-treated polyethylene, yet there was no extra increase in ductility of the cement beams compared to using non-treated polyethylene. The Type II Size Effect analysis was performed and compared to the stress analysis results of the experiment. For future research, it is recommended that a higher volume of polyethylene per 1000 grams of cement powder be used, as well as increasing the strength of the UV chamber to achieve a larger increase in the hydrophilicity of the polyethylene. Also, perhaps using more precise equipment to cut the notches in the beams would be helpful in ensuring that all specimens are identical and there is no error in notch depth caused by inaccurate use of the hacksaw or radial saw. Further experiments will be conducted.
ContributorsMardambek, Karim (Author) / Hoover, Christian (Thesis director) / Kazembeyki, Maryam (Committee member) / Civil, Environmental and Sustainable Eng Program (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
This project report contains the design of a low-cost structural model of a residential structure in the City of Phoenix, AZ. The structural unit will be part of a residential area in Ahwatukee Foothills Village located just south of South Mountain. The residential structure is 3600 square feet and consists of three bedrooms (including the master bedroom), two bathrooms (including the master bathroom), a 2-car garage, laundry room, kitchen, dining room, and a living room. There are two elevation options (A & B) for the roof framing plan. Elevation A includes a straight forward truss package consisting of two truss designs with no hip or girder trusses. Elevation B includes a more complex truss package which includes girder trusses, hip trusses, and corner jacks. Within both elevations, the trusses run perpendicular to the ridge of the structure as displayed in the Architectural Floor Plan (see Figure 4) with the exception of the hip trusses and corner jacks in Elevation B.
The design objective is to meet all safety specifications while minimizing the total cost of members and member connections. The design also aims to streamline the construction time and resources by using standard member cross section dimensions. This residential building report is carried out in accordance with the City of Phoenix standards and follows the ASCE7-10 code for the dead and live load combinations and wind pressures. This report also references the National Design Specifications (NDS) 2005 for the column design. HT Consulting Group is excited to create a safe and sustainable development for the residents within Ahwatukee Foothills Village.
The design objective is to meet all safety specifications while minimizing the total cost of members and member connections. The design also aims to streamline the construction time and resources by using standard member cross section dimensions. This residential building report is carried out in accordance with the City of Phoenix standards and follows the ASCE7-10 code for the dead and live load combinations and wind pressures. This report also references the National Design Specifications (NDS) 2005 for the column design. HT Consulting Group is excited to create a safe and sustainable development for the residents within Ahwatukee Foothills Village.
ContributorsHerrera-Theut, Joseph James (Author) / Ward, Kristen (Thesis director) / Morgan, John (Committee member) / Civil, Environmental and Sustainable Eng Program (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
This product was completed under the guidance of LG Electronics and the InnovationSpace team. This report describes the development of a revolutionized idea for smart ventilation referred to as Ciel. Ciel is a smart home comfort device that provides the user with a smart, energy efficient, and easy-to-use way to regulate the room temperature of their home. The planning documentation, problem comprehension, design, functionality, and device specifications are outlined and illustrated within this report. And the discussion and analysis look into the benefits of the technology, outline the prototyping plan and process, look into the materials necessary for construction, and production safety considerations.
ContributorsBeauvais, Cara Marie (Co-author) / Beauvais, Cara (Co-author) / Shin, Dosun (Thesis director) / Hedges, Craig (Committee member) / Mechanical and Aerospace Engineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
I'm a business major. As a matter of fact, I don't have a lot of opportunities to participate in projects where I can design and build things as my engineering friends do. In fact, I'm not good at building things. And perhaps that's why I soon figured out that Engineering school isn't for me. But business alone seems to be not enough; I crave for something new and exciting and there is nothing more satisfying than seeing a design on paper becoming a tangible product in hands. For that reason, I decided to join InnovationSpace after learning about the program from my professor and my friends who were in the program. My goal through the program is to deliver a product that people find useful, and hopefully, has an impact on their lives.
“InnovationSpace is an entrepreneurial joint venture among the Herberger Institute for Design and the Arts, Ira A. Fulton Schools of Engineering, W.P. Carey School of Business and the Julie Ann Wrigley Global Institute of Sustainability at Arizona State University. The goal […] is to develop products that create market value while serving real societal needs and minimizing impacts on the environment. Put simply, we seek to create products that are progressive, possible and profitable. At the same time, they must have a meaningful impact on the daily lives of ordinary people. InnovationSpace utilizes two fundamental strategies for creating sustainable innovation: a model of new product development known as Integrated Innovation and the emerging field of biomimicry.” — InnovationSpace program syllabus
The focus of the project outlined by Cisco is “to understand the needs of people who face physical, cognitive or sensory disabilities, and develop new products and services for them utilizing the potential of the new technologies called the Internet of Things.” In other words, I am challenged to leverage the Internet of Things technologies to develop a device that benefits individuals with disabilities.
The final product is an automated airport cart — Chariot. Based on stakeholders’ needs interviews, we find that visually impaired people experience difficulties navigating the airport when they need to travel. Many airports attempt to solve this problem by offering wheelchair. However, visually impaired people feel that they are treated unfairly and become dependent on the wheelchairs. Chariot strives to solve this problem by applying the same concept in autonomous vehicle to guide the users through the airport. The users receive their itinerary email that will link to the Chariot app on their phones. When they arrive at the airport, the users simply connect their phones with Chariot and information such as gate number and departure time will be updated in the cart so that Chariot can guide the users to the desired destination. Ultimately, Chariot aims to give visually impaired people more control over their lives.
“InnovationSpace is an entrepreneurial joint venture among the Herberger Institute for Design and the Arts, Ira A. Fulton Schools of Engineering, W.P. Carey School of Business and the Julie Ann Wrigley Global Institute of Sustainability at Arizona State University. The goal […] is to develop products that create market value while serving real societal needs and minimizing impacts on the environment. Put simply, we seek to create products that are progressive, possible and profitable. At the same time, they must have a meaningful impact on the daily lives of ordinary people. InnovationSpace utilizes two fundamental strategies for creating sustainable innovation: a model of new product development known as Integrated Innovation and the emerging field of biomimicry.” — InnovationSpace program syllabus
The focus of the project outlined by Cisco is “to understand the needs of people who face physical, cognitive or sensory disabilities, and develop new products and services for them utilizing the potential of the new technologies called the Internet of Things.” In other words, I am challenged to leverage the Internet of Things technologies to develop a device that benefits individuals with disabilities.
The final product is an automated airport cart — Chariot. Based on stakeholders’ needs interviews, we find that visually impaired people experience difficulties navigating the airport when they need to travel. Many airports attempt to solve this problem by offering wheelchair. However, visually impaired people feel that they are treated unfairly and become dependent on the wheelchairs. Chariot strives to solve this problem by applying the same concept in autonomous vehicle to guide the users through the airport. The users receive their itinerary email that will link to the Chariot app on their phones. When they arrive at the airport, the users simply connect their phones with Chariot and information such as gate number and departure time will be updated in the cart so that Chariot can guide the users to the desired destination. Ultimately, Chariot aims to give visually impaired people more control over their lives.
ContributorsNguyen, Khanh Hoang Tuan (Author) / Trujillo, Rhett (Thesis director) / Hedges, Craig (Committee member) / Department of Information Systems (Contributor) / Department of Supply Chain Management (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
During my fourth year at Arizona State University, I enrolled in two capstone projects while working towards my
undergraduate degree in aerospace engineering. The first of the two team projects was an aerospace capstone: Design of
Autonomous Aircraft Systems. The second being a capstone project based out of Arizona State’s design school:
Innovation Space. The purpose of this dual enrollment was to compare and contrast the two product development projects,
in hopes to recommend a course of action to engineers younger than myself who are presented the option of multiple
capstones. This report will elaborate on three areas of engineering design and how they were realized in these projects.
These 3 topics are product development and its effect on design to manufacture, design feature creep, and technical vs
non-technical design. After considering the pros and cons of both capstone projects and their relation to the three main
topics of this report, it was decided that individuals who are motivated to become the best engineers they can be upon
graduating from an undergraduate program, they should find the time to take both capstone courses. Both Design of
Autonomous Aircraft Systems and Innovation Space present opportunities to create new ways of engineering thinking, all
of which will be necessary for an engineer to succeed in his/her first years in industry.
undergraduate degree in aerospace engineering. The first of the two team projects was an aerospace capstone: Design of
Autonomous Aircraft Systems. The second being a capstone project based out of Arizona State’s design school:
Innovation Space. The purpose of this dual enrollment was to compare and contrast the two product development projects,
in hopes to recommend a course of action to engineers younger than myself who are presented the option of multiple
capstones. This report will elaborate on three areas of engineering design and how they were realized in these projects.
These 3 topics are product development and its effect on design to manufacture, design feature creep, and technical vs
non-technical design. After considering the pros and cons of both capstone projects and their relation to the three main
topics of this report, it was decided that individuals who are motivated to become the best engineers they can be upon
graduating from an undergraduate program, they should find the time to take both capstone courses. Both Design of
Autonomous Aircraft Systems and Innovation Space present opportunities to create new ways of engineering thinking, all
of which will be necessary for an engineer to succeed in his/her first years in industry.
ContributorsEll, Samuel Leo (Author) / Hedges, Craig (Thesis director) / Kuhn, Anthony (Committee member) / Industrial, Systems & Operations Engineering Prgm (Contributor) / Mechanical and Aerospace Engineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
As structural engineers in practice continue to improve their methods and advance their analysis and design techniques through the use of new technology, how should structural engineering education programs evolve as well to match the increasing complexity of the industry? This thesis serves to analyze the many differing opinions and techniques on modernizing structural engineering education programs through a literature review on the content put out by active structural engineering education reform committees, articles and publications by well-known educators and practitioners, and a series of interviews conducted with key individuals specifically for this project. According to the opinions analyzed in this paper, structural engineering education should be a 5-year program that ends with a master’s degree, so that students obtain enough necessary knowledge to begin their positions as structural engineers. Firms would rather continue the education of new-hires themselves after this time than to wait and pay more for students to finish longer graduate-type programs. Computer programs should be implemented further into education programs, and would be most productive not as a replacement to hand-calculation methods, but as a supplement. Students should be tasked with writing codes, so that they are required to implement these calculations into computer programs themselves, and use classical methods to verify their answers. In this way, engineering programs will be creating critical thinkers who can adapt to any new structural analysis and design programs, and not just be training students on current programs that will become obsolete with time. It is the responsibility of educators to educate current staff on how to implement these coding methods seamlessly into education as a supplement to hand calculation methods. Students will be able to learn what is behind commercial coding software, develop their hand-calculation skills through code verification, and focus more on the ever-important modeling and interpretation phases of problem solving. Practitioners will have the responsibility of not expecting students to graduate with knowledge of specific software programs, but instead recruiting students who showcase critical thinking skills and understand the backbone of these programs. They will continue the education of recent graduates themselves, providing them with real-world experience that they cannot receive in school while training them to use company-specific analysis and design software.
ContributorsMaurer, Cole Chaon (Author) / Hjelmstad, Keith (Thesis director) / Chatziefstratiou, Efthalia (Committee member) / Civil, Environmental and Sustainable Eng Program (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
Oxic beds containing basic oxygen furnace slag were evaluated as potential post-treatment method for sulfate reducing bioreactor (SRB) treatment of acid rock drainage. SRB effluent was pumped into BOF slag/sand leach beds, also known as oxic slag beds (OSBs), at various flow rates. OSB influent versus effluent concentrations of dissolved metals (specifically magnesium and manganese) and water quality parameters (pH, dissolved oxygen concentration, and conductivity) were compared. The OSBs increased the pH of the SRB effluents from 6.2–6.7 to 7.5–8.3. Dissolved oxygen concentration increased from 2-4 mg L^(-1) to approximately 8 mg L^(-1). Conductivity remained similar, with some effluent values being less than influent. Manganese concentration was observed to be reduced through OSB post-treatment by an average of 8.2% reduction and a maximum of 23 % reduction. Magnesium was not reduced during OSB post-treatment. Other metal concentrations changes were analyzed. Recommendations the design of OSBs for future studies were made, and a proposed design was configured.
ContributorsReep, Jeffrey Kyle (Author) / Delgado, Anca G. (Thesis director) / Hamdan, Nasser (Committee member) / Civil, Environmental and Sustainable Eng Program (Contributor) / School of Sustainable Engineering & Built Envirnmt (Contributor) / Watts College of Public Service & Community Solut (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
Terrestrial crude oil spills compromise a soil’s ability to provide ecosystem services by inhibiting plant life and threatening groundwater integrity. Ozone gas, a powerful oxidant, shows promise to aid in soil recovery by degrading petroleum hydrocarbons into more bioavailable and biodegradable chemicals. However, previous research has shown that ozone can change the soil pH and create harmful organic compounds.
The research objective was to determine the short-term ecological toxicity of ozonation byproducts on seed germination of three distinct plant types (radish, lettuce, and grass) compared to untreated and uncontaminated soils. We hypothesize that the reduction of heavy hydrocarbon contamination in soil by ozone application will provide more suitable habitat for the germinating seeds. The effect of ozone treatment on seed germination and seedling quality was measured using ASTM standards for early seedling growth in conjunction with a gradient of potting soil amendments. Ozonation parameters were measured using established methods and include total petroleum hydrocarbons (TPH), dissolved organic carbon (DOC), and pH.
This study demonstrated the TPH levels fall up to 22% with ozonation, suggesting TPH removal is related to the amount of ozone delivered as opposed to the type of crude oil present. The DOC values increase comparably across crude oil types as the ozonation dose increases (from a background level of 0.25 g to 6.2 g/kg dry soil at the highest ozone level), suggesting that DOC production is directly related to the amount of ozone, not crude oil type. While ozonation reduced the mass of heavy hydrocarbons in the soil, it increased the amount of ozonation byproducts in the soil. For the three types of seeds used in the study, these changes in concentrations of TPH and DOC affected the species differently; however, no seed type showed improved germination after ozone treatment. Thus, ozone treatment by itself had a negative impact on germination potential.
Future research should focus on the effects of post-ozonation, long-term bioremediation on eco-toxicity. By helping define the eco-toxicity of ozonation techniques, this research can improve upon previously established ozone techniques for petroleum remediation and provide economic and environmental benefits when used for soil treatment.
The research objective was to determine the short-term ecological toxicity of ozonation byproducts on seed germination of three distinct plant types (radish, lettuce, and grass) compared to untreated and uncontaminated soils. We hypothesize that the reduction of heavy hydrocarbon contamination in soil by ozone application will provide more suitable habitat for the germinating seeds. The effect of ozone treatment on seed germination and seedling quality was measured using ASTM standards for early seedling growth in conjunction with a gradient of potting soil amendments. Ozonation parameters were measured using established methods and include total petroleum hydrocarbons (TPH), dissolved organic carbon (DOC), and pH.
This study demonstrated the TPH levels fall up to 22% with ozonation, suggesting TPH removal is related to the amount of ozone delivered as opposed to the type of crude oil present. The DOC values increase comparably across crude oil types as the ozonation dose increases (from a background level of 0.25 g to 6.2 g/kg dry soil at the highest ozone level), suggesting that DOC production is directly related to the amount of ozone, not crude oil type. While ozonation reduced the mass of heavy hydrocarbons in the soil, it increased the amount of ozonation byproducts in the soil. For the three types of seeds used in the study, these changes in concentrations of TPH and DOC affected the species differently; however, no seed type showed improved germination after ozone treatment. Thus, ozone treatment by itself had a negative impact on germination potential.
Future research should focus on the effects of post-ozonation, long-term bioremediation on eco-toxicity. By helping define the eco-toxicity of ozonation techniques, this research can improve upon previously established ozone techniques for petroleum remediation and provide economic and environmental benefits when used for soil treatment.
ContributorsJanuszewski, Brielle (Author) / Rittmann, Bruce (Thesis director) / Yavuz, Burcu (Committee member) / Civil, Environmental and Sustainable Eng Program (Contributor) / School of International Letters and Cultures (Contributor) / School of Politics and Global Studies (Contributor, Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
Volunteering can lead to many positive outcomes on individuals in terms of social, psychological, and professional development. This study sought to understand the process and mindset of volunteers and how their experience affects attitudes towards environment. The purpose of this study is to analyze the attitude change of volunteers toward the environment, culture, and community after volunteering at a community of a background different than theirs. In this study, the volunteer setting is in Shonto, a Native American community in the Navajo Nation, Arizona. This study utilized a qualitative research approach. A total of 12 participants were interviewed in this study. All participants were members of Engineers Without Borders (EWB) at Arizona State University and have traveled to Shonto. Questions were asked to participants about their experiences with EWB and their volunteering experiences in Shonto. The main findings were categorized into four themes: 1) motivations; 2) preconceived perceptions and exposure; 3) collaboration and connection; and 4) commonality and reflection. The findings can be described as a process that participants go through in their entire volunteering experience. The first two themes occur before individuals volunteer and the last two themes occur after. First, individuals develop certain motivations to volunteer. Then, the preconceived perceptions of individuals were analyzed, and it was presumed that these perceptions were a result of their upbringing and exposure, or lack thereof, to the community they volunteer at. The last two themes occur after the individuals have volunteered. Individuals are able to collaborate and form a connection with the community, which influences their awareness and their ability to reflect on their experiences. These last two themes are important because they indicate the change of perceptions that volunteers perceive. These findings connect the motivations that volunteers have all the way to their attitude changes after volunteering. Further, findings demonstrate that the preconceived perceptions are influenced by an individual’s upbringing or exposure, but these misconceptions are changed after volunteering experience, which supports contact theory. Through these findings the study contributes to the existing literature on voluntourism. This study is applicable to organizations and tour operators who offer volunteer tourism programs and work with communities of different backgrounds. It can provide individuals an insight to other volunteering experiences.
ContributorsRoman, Brian (Author) / Nyaupane, Gyan (Thesis director) / Legg, Eric (Committee member) / Civil, Environmental and Sustainable Eng Program (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
An existing house is outdated and in need of a renovation. The kitchen, living room, bar and dining room are currently all closed off from one another creating four separate spaces. The goal is to recreate the main floor into an open concept space, that is great for entertaining, and being with family and friends. This Thesis/Creative Project deals in the area of structural redesign, aesthetics, client relations and budget tracking. To do this effectively, Revit, AutoCAD, RISA 3D and Excel will all be used to complete various elements of the project. In order to open the space a structural analysis needs to be done to ensure the structural integrity of the home remains solid. If structural walls are being removed the forces being exerted on those walls will need to be redistributed. This will require a redesign of the structural members to ensure the forces are supported. Once the walls are down the area can be redesigned to ensure function and usability. Every inch of the space needs to be optimized to ensure the most efficient use of space. The storage will also need to be taken into consideration because there will be storage loss when removing walls. The space will need to look aesthetically pleasing and keep in theme with the country cabin feel of the home. The Client’s will be involved in every step of the process to ensure they are satisfied with the varying design. While redesigning the area there is a strict budget that was set by the Clients, and every step of the designing process needs to take into consideration the cost. Once the successful completion of the project is accomplished, the Clients, will have the ability to take the plans and complete the renovation on the house.
ContributorsKahler, Jared (Author) / Ward, Kristen (Thesis director) / Chatziefstratiou, Efthalia (Committee member) / Civil, Environmental and Sustainable Eng Program (Contributor) / Barrett, The Honors College (Contributor)
Created2019-12