Matching Items (16)
Description
The Hohokam of central Arizona left behind evidence of a culture markedly different from and more complex than the small communities of O'odham farmers first encountered by Europeans in the sixteenth and seventeenth centuries A.D. Archaeologists have worked for well over a century to document Hohokam culture history, but much about Pre-Columbian life in the Sonoran Desert remains poorly understood. In particular, the organization of the Hohokam economy in the Phoenix Basin has been an elusive and complicated subject, despite having been the focus of much previous research. This dissertation provides an assessment of several working hypotheses regarding the organization and evolution of the pottery distribution sector of the Hohokam economy. This was accomplished using an agent-based modeling methodology known as pattern-oriented modeling. The objective of the research was to first identify a variety of economic models that may explain patterns of artifact distribution in the archaeological record. Those models were abstract representations of the real-world system theoretically drawn from different sources, including microeconomics, mathematics (network/graph theory), and economic anthropology. Next, the effort was turned toward implementing those hypotheses as agent-based models, and finally assessing whether or not any of the models were consistent with Hohokam ceramic datasets. The project's pattern-oriented modeling methodology led to the discard of several hypotheses, narrowing the range of plausible models of the organization of the Hohokam economy. The results suggest that for much of the Hohokam sequence a market-based system, perhaps structured around workshop procurement and shopkeeper merchandise, provided the means of distributing pottery from specialist producers to widely distributed consumers. Perhaps unsurprisingly, the results of this project are broadly consistent with earlier researchers' interpretations that the structure of the Hohokam economy evolved through time, growing more complex throughout the Preclassic, and undergoing a major reorganization resulting in a less complicated system at the transition to the Classic Period.
ContributorsWatts, Joshua (Author) / Abbott, David R. (Thesis advisor) / Barton, C Michael (Committee member) / Van Der Leeuw, Sander (Committee member) / Janssen, Marcus (Committee member) / Arizona State University (Publisher)
Created2013
Description
Adolescents' clay sculpture has been researched significantly less than their drawings. I spent approximately six weeks in a ceramics class located at a high school in a suburb of Phoenix, Arizona in order to explore how gender affected subject matter preference in students' three dimensional clay sculpture. Gender studies on children's drawings reveal that males favor fantasy, violence, aggression, sports, and power, while females favor realism, domestic and social experience, physical appearance, care and concern, nature and animals. My three main research questions in this study were 1) How did gender affect subject matter in adolescents' three-dimensional clay sculpture? 2) What similarities or differences existed between females' and males' subject matter preference in sculpture and their subject matter preference in drawing? 3) Assuming that significant gender differences existed, how successful would the students be with a project that favored opposite gender themed subject matter? I found that although males and females had gender differences between subject matter in their clay sculptures, there were exceptions. In addition, the nature of clay affected this study in many ways. Teachers and students need to be well prepared for issues that arise during construction of clay sculptures so that students are able to use clay to fully express their ideas.
ContributorsMarsili, Teresa (Author) / Stokrocki, Mary (Thesis advisor) / Young, Bernard (Committee member) / Erickson, Mary (Committee member) / Arizona State University (Publisher)
Created2011
Description
The Beauty Within is a ceramics show displaying human body anatomy, which seeks to bridge aspects of my biological sciences major in the School of Life Sciences with aspects of my studio art minor in the Herberger Institute for Design and the Arts. My goal in creating the show was to change the opinion of people on human body organs from unease to admiration by recreating these organs in an artistic light. By stylizing the construction of the pieces and bringing in the contemporary form of art \u2014 makeup art \u2014 I hoped to bring a new light to the pieces and highlight the beauty within the human body. By leaving the pieces partly unfinished I further hoped to draw attention to the natural beauty within the pieces regardless of the makeup that covers them. By holding the show in the human anatomy lab room on campus and having both animal and human organs on display I was able to create that sense of disgust toward the organs in the viewers. The beauty of my created pieces was then directly contrasted with the disgust felt about the real organs by displaying each of my pieces next to a real organ. The reactions of the viewers reflected a change in view from the actual organs to my re-created organs, and therefore the goal of the show was achieved.
ContributorsThomas, Brandon Lee (Author) / Weiser, Kurt (Thesis director) / Chung, Samuel (Committee member) / School of Art (Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05
Description
This paper studies the change in social diversity and interaction space from the Classic to Postclassic periods in the Mimbres Valley and East Mimbres Area. Between the Classic and Postclassic periods the Mimbres region of the American Southwest exhibits an increase in diversity of ceramic wares. Previous research suggests that increased diversity of ceramics indicates a more diverse community, which could pose challenges to local social interaction (Nelson et al. 2011). I am interested in whether the architecture of plazas, focal points of communities' social structures, change in response to the growing social diversity. To examine this, I quantify the diversity of painted ceramics at Classic and Postclassic villages as well as the extent of the enclosure of plazas. I find that there is a definite shift towards greater plaza enclosure between the Classic and Postclassic periods. I conclude this paper with a discussion of possible interpretations of this trend regarding the social reactions of Mimbres communities to the changes which reshaped the region between the Classic and Postclassic periods.
ContributorsHarkness, Rebecca Jean (Author) / Nelson, Margaret (Thesis director) / Hegmon, Michelle (Committee member) / Barrett, The Honors College (Contributor) / School of Human Evolution and Social Change (Contributor) / School of Historical, Philosophical and Religious Studies (Contributor)
Created2015-05
Description
Social media has forced us to more publicly define who we should be apart from who we are. In the age of technology, there is an increased societal pressure to hide imperfection - to keep the raw, sensitive aspects of our lives to ourselves. For my honors thesis/creative project, I chose to explore the disparities between the lives we share in person and the lives we share online. As a BFA student in Ceramics, I wanted to use the skills and techniques I've acquired throughout my years in college to visually represent my personal observations of social media use, identity in the age of technology, and the taboo of imperfection. My motivation for this project was to question, what is reality? I believe social media has led to an environment of under sharing. We share what's easy, what's happy, what's comfortable. Either that, or we focus on the negative, discounting the blessings and privilege we are so lucky to have. Positive or negative, this platform is a shallow way to communicate and understand humanity. There is always some underlying insecurity, anxiety, or tragedy behind every success or celebration. After reflecting on these insights, I continued my research by exploring aspects of different imagery, form, and function in clay. Ultimately, I decided to create a series of four interactive head sculptures. My main objectives for these sculptures were to embody issues of mental health, reference social media, and to have the viewer interact with the pieces.
ContributorsMegehee, Mary Grace (Author) / Beiner, Susan (Thesis director) / Chung, Samuel (Committee member) / School of Art (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Unmanned aerial vehicles have received increased attention in the last decade due to their versatility, as well as the availability of inexpensive sensors (e.g. GPS, IMU) for their navigation and control. Multirotor vehicles, specifically quadrotors, have formed a fast growing field in robotics, with the range of applications spanning from surveil- lance and reconnaissance to agriculture and large area mapping. Although in most applications single quadrotors are used, there is an increasing interest in architectures controlling multiple quadrotors executing a collaborative task. This thesis introduces a new concept of control involving more than one quadrotors, according to which two quadrotors can be physically coupled in mid-flight. This concept equips the quadro- tors with new capabilities, e.g. increased payload or pursuit and capturing of other quadrotors. A comprehensive simulation of the approach is built to simulate coupled quadrotors. The dynamics and modeling of the coupled system is presented together with a discussion regarding the coupling mechanism, impact modeling and additional considerations that have been investigated. Simulation results are presented for cases of static coupling as well as enemy quadrotor pursuit and capture, together with an analysis of control methodology and gain tuning. Practical implementations are introduced as results show the feasibility of this design.
ContributorsLarsson, Daniel (Author) / Artemiadis, Panagiotis (Thesis advisor) / Marvi, Hamidreza (Committee member) / Berman, Spring (Committee member) / Arizona State University (Publisher)
Created2016
Description
There is a wide intersection where animal and human lives interact or mimic each other behaviorally or biologically. A lot of the products that are part of our day-to-day were first validated by animals, and eventually found their way to us. From food to beauty products to scientific developments, animals deal with a lot behind the scenes. Some humans are cognizant of what is happening backstage, while others only see the final presentation. Either way, all of us have our opinions in support or against animal treatment. The project is heavily inspired from my experience in a neurorehabilitation lab, so the foundation is similar to the structure and function of neurons. Through this project, I am focusing on one aspect of this debate, which is animal testing in the scietific setting. The goal of the project is not to force the viewer to choose one side, but to understand the big picture and the reasoning of the opposing side.
ContributorsSharma, Bhavya (Author) / Beiner, Susan (Thesis director) / Roberson, Robert (Committee member) / Harrington Bioengineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
Description
Achieving a viable process for advanced manufacturing of ceramics and metal-ceramic composites is a sought-after goal in a wide range of fields including electronics and sensors for harsh environments, microelectromechanical devices, energy storage materials, and structural materials, among others. In this dissertation, the processing, and manufacturing of ceramics and ceramic composites are addressed, specifically, a process for three-dimensional (3D) printing of polymer-derived ceramics (PDC), and a process for low-cost manufacturing as well as healing of metal-ceramic composites is demonstrated.Three-dimensional printing of ceramics is enabled by dispensing the preceramic polymer at the tip of a moving nozzle into a gel that can reversibly switch between fluid and solid states, and subsequently thermally cross-linking the entire printed part “at once” while still inside the same gel was demonstrated. The solid gel converts to fluid at the tip of the moving nozzle, allowing the polymer solution to be dispensed and quickly returns to a solid state to maintain the geometry of the printed polymer both during printing and the subsequent high-temperature (160 °C) cross-linking. After retrieving the cross-linked part from the gel, the green body is converted to ceramic by high-temperature pyrolysis. This scalable process opens new opportunities for low-cost and high-speed production of complex three-dimensional ceramic parts and will be widely used for high-temperature and corrosive environment applications, including electronics and sensors, microelectromechanical systems, energy, and structural applications.
Metal-ceramic composites are technologically significant as structural and functional materials and are among the most expensive materials to manufacture and repair. Hence, technologies for self-healing metal-ceramic composites are important. Here, a concept to fabricate and heal co-continuous metal-ceramic composites at room temperature were demonstrated. The composites were fabricated by infiltration of metal (here Copper) into a porous alumina preform (fabricated by freeze-casting) through electroplating; a low-temperature and low-cost process for the fabrication of such composites. Additionally, the same electroplating process was demonstrated for healing damages such as grooves and cracks in the original composite, such that the healed composite recovered its strength by more than 80%. Such technology may be expanded toward fully autonomous self-healing structures.
ContributorsMahmoudi, Mohammadreza (Author) / Minary-Jolandan, Majid (Thesis advisor) / Rajagopalan, Jagannathan (Committee member) / Cramer, Corson (Committee member) / Kang, Wonmo (Committee member) / Bhate, Dhruv (Committee member) / Arizona State University (Publisher)
Created2022
Description
There has been a vast increase in applications of Unmanned Aerial Vehicles (UAVs) in civilian domains. To operate in the civilian airspace, a UAV must be able to sense and avoid both static and moving obstacles for flight safety. While indoor and low-altitude environments are mainly occupied by static obstacles, risks in space of higher altitude primarily come from moving obstacles such as other aircraft or flying vehicles in the airspace. Therefore, the ability to avoid moving obstacles becomes a necessity
for Unmanned Aerial Vehicles.
Towards enabling a UAV to autonomously sense and avoid moving obstacles, this thesis makes the following contributions. Initially, an image-based reactive motion planner is developed for a quadrotor to avoid a fast approaching obstacle. Furthermore, A Dubin’s curve based geometry method is developed as a global path planner for a fixed-wing UAV to avoid collisions with aircraft. The image-based method is unable to produce an optimal path and the geometry method uses a simplified UAV model. To compensate
these two disadvantages, a series of algorithms built upon the Closed-Loop Rapid Exploratory Random Tree are developed as global path planners to generate collision avoidance paths in real time. The algorithms are validated in Software-In-the-Loop (SITL) and Hardware-In-the-Loop (HIL) simulations using a fixed-wing UAV model and in real flight experiments using quadrotors. It is observed that the algorithm enables a UAV to avoid moving obstacles approaching to it with different directions and speeds.
for Unmanned Aerial Vehicles.
Towards enabling a UAV to autonomously sense and avoid moving obstacles, this thesis makes the following contributions. Initially, an image-based reactive motion planner is developed for a quadrotor to avoid a fast approaching obstacle. Furthermore, A Dubin’s curve based geometry method is developed as a global path planner for a fixed-wing UAV to avoid collisions with aircraft. The image-based method is unable to produce an optimal path and the geometry method uses a simplified UAV model. To compensate
these two disadvantages, a series of algorithms built upon the Closed-Loop Rapid Exploratory Random Tree are developed as global path planners to generate collision avoidance paths in real time. The algorithms are validated in Software-In-the-Loop (SITL) and Hardware-In-the-Loop (HIL) simulations using a fixed-wing UAV model and in real flight experiments using quadrotors. It is observed that the algorithm enables a UAV to avoid moving obstacles approaching to it with different directions and speeds.
ContributorsLin, Yucong (Author) / Saripalli, Srikanth (Thesis advisor) / Scowen, Paul (Committee member) / Fainekos, Georgios (Committee member) / Thangavelautham, Jekanthan (Committee member) / Youngbull, Cody (Committee member) / Arizona State University (Publisher)
Created2015
Description
I propose a new approach for the analysis of social transformations within the context of colonialism. Drawing on concepts used by historical sociologists, combined with insights from historians and archaeologists, I forge a synthesis of relational mechanisms that concatenated into processes of categorical change. Within the social sciences, mechanisms are formally defined as specific classes of events or social interactions that are causally linked and tend to repeat under specific conditions, potentially resulting in widespread social transformations. Examples of mechanisms include formal inscription through spatial segregation and adjustments in individual position through socioeconomic mobility.
For New Spain, historians have identified at least three macroscale shifts in the social structure of the viceroyalty. I examine the mechanisms that led to these changes in two distinct contexts. The Port of Veracruz (Mexico), located along the main axis of colonial exchange, offers a shifting baseline for comparison of the long-term trajectory of colonial interaction and categorical change. I undertake a finer grain study at the borderland presidios of Northwest Florida, where three presidios were sequentially occupied (AD 1698-1763) and historically linked to Veracruz through formal recruitment and governmental supply.
My analysis draws on two independent lines of evidence. Historically, I examine census records, maps, and other colonial documents. Archaeologically, I assess change in interaction mainly through technological style analysis, compositional characterization, and the distribution of low visibility plain and lead-glazed utilitarian wares. I document the active expression of social categories through changing consumption of highly visible serving vessels.
This study demonstrates that colonial transformations were driven locally from the bottom up and through the top-down responses of local and imperial elites who attempted to maintain control over labor and resources. Social changes in Florida and Veracruz were distinct based upon initial conditions and historical contingencies, yet simultaneously were influenced by and contributed to broad trajectories of macroscale colonial transformations.
For New Spain, historians have identified at least three macroscale shifts in the social structure of the viceroyalty. I examine the mechanisms that led to these changes in two distinct contexts. The Port of Veracruz (Mexico), located along the main axis of colonial exchange, offers a shifting baseline for comparison of the long-term trajectory of colonial interaction and categorical change. I undertake a finer grain study at the borderland presidios of Northwest Florida, where three presidios were sequentially occupied (AD 1698-1763) and historically linked to Veracruz through formal recruitment and governmental supply.
My analysis draws on two independent lines of evidence. Historically, I examine census records, maps, and other colonial documents. Archaeologically, I assess change in interaction mainly through technological style analysis, compositional characterization, and the distribution of low visibility plain and lead-glazed utilitarian wares. I document the active expression of social categories through changing consumption of highly visible serving vessels.
This study demonstrates that colonial transformations were driven locally from the bottom up and through the top-down responses of local and imperial elites who attempted to maintain control over labor and resources. Social changes in Florida and Veracruz were distinct based upon initial conditions and historical contingencies, yet simultaneously were influenced by and contributed to broad trajectories of macroscale colonial transformations.
ContributorsEschbach, Krista (Author) / Stark, Barbara L. (Thesis advisor) / Smith, Michael E. (Thesis advisor) / Alexander, Rani T (Committee member) / Worth, John E. (Committee member) / Bearat, Hamdallah (Committee member) / Peeples, Matthew A. (Committee member) / Arizona State University (Publisher)
Created2019