Digital Commons Network^™

Analysis Of Center Of Pressure And Center Of Mass To Determine Patterns Of Postural Stability In Neurotypical Subjects, Natalie Tipton

Masters Theses

The body’s postural control mechanism is responsible for responding to perturbations of balance and keeping the body upright. One of the main ways that this is completed during quiet standing, where both feet are planted on the ground, is through center of pressure oscillations. In these oscillations, the center of pressure circles around the center of mass, constantly counteracting any lean that exists in the body. These oscillations can be recorded with floorembedded force plates and center of mass can be recorded with a motion capture system. In this research, these signals were recorded for stances with feet together and …

A Framework To Support Automatic Certification For Self-Adaptive Systems, Ioannis Nearchou

Masters Theses

Presently, cyber-physical systems are increasingly being integrated into societies, from the economic sector to the nuclear energy sector. Cyber-physical systems are systems that combine physical, digital, human, and other components, which operate through physical means and software. When system errors occur, the consequences of malfunction could negatively impact human life. Academic studies have relied on the MAPE-K feedback loop model to develop various system components to satisfy the self-adaptive features, such that violation of the safety requirements can be minimized. Assurance of system requirement satisfaction is argued through an industrial standard form, called an assurance case, which is usually applied …

The Color Line In Communism: The East German Ministry Of Culture’S Portrayal Of Paul Robeson’S State Visit, Colin J. Rensch

Masters Theses

During the 1950s and 1960s, the Cold War, the American Civil Rights movement, and anticolonialism combined to create a complex political, social, and economic landscape and a division of the globe into the so-called first, second, and third worlds. It is within this context that African American performer and activist Paul Robeson traveled to the GDR for an official visit in October 1960.

This visit was highly significant in light of the oppression Robeson had experienced at the hands of the US State Department. In response to Robeson’s communist sympathy, the State Department had revoked Robeson’s passport in 1950, and …

Analysis Of Interdunal Wetlands And Ecosystem Dynamics Using Uas And Obia In Ludington State Park, Michigan, Claire Gilbert

Masters Theses

The Great Lakes sand dunes are the world's largest freshwater dune complex. There is a functional relationship between coastal wetlands and freshwater sand dune, referred to as interdunal wetlands. Interdunal wetland systems are highly dynamic and change dramatically seasonally and annually. Using geographic information systems (GIS) and unoccupied aerial systems (UAS), this thesis project is focused on understanding the spatial distribution of sparse and dense vegetation, and abiotic influence such as distance to coast, slope, and aspect influence interdunal wetland stability within a Great Lakes shoreline dune system. Object-based image analysis (OBIA) classification results extracted meaningful vegetation densities of growth …

English As A Lingua Franca: Improving Technical Writing And Communication Methods For International Audiences, Lauren Alyssa Serrani

Masters Theses

This thesis centers on the role of English as a lingua franca in global communication, particularly as it pertains to technical written communication. Over the 20th century, English emerged as the primary language used in global communication. As a result, efforts have been made to standardize the language and teach this standardized English in schools and writing programs around the world. Standard American and British English are dominant in academic and professional fields, which inhibits both native and nonnative language learners from reaching their full potential. This project focuses on the most prominent language acquisition methodologies - Standard English, translingualism, …

Mother Heart, Elisa Miriam Palumbo

Masters Theses

This memoir tells the story of a girl who lost her mom to cancer when she was eleven and how she learned to cope with her loss through writing.

Flexible Capacitive Pressure Sensors And Triboelectric Energy Harvesters Using Laser-Assisted Patterning Process For Flexible Hybrid Electronic Applications, Valliammai Palaniappan

Masters Theses

This work focuses on the design, fabrication and characterization of novel flexible capacitive pressure sensors and triboelectric energy harvesters using laser-assisted patterning process for flexible hybrid electronic applications. Initially, the capacitive pressure sensor was developed by fabricating a set of polydimethylsiloxanes (PDMS) dielectric films with pyramid shaped micro-structures using a laser-assisted patterning process. The pressure sensor consists of two electrodes (top and bottom) that were fabricated by depositing silver (Ag) on flexible polyethylene terephthalate (PET) using additive screen-printing process. Finally, the pressure sensor was assembled by attaching the top and bottom Ag electrodes to the smooth side of pyramid shaped …

Prediction Of Isotropic Strain Hardening Material Properties Using Gradient Boosted Regression Tree Method And Hyperparameter Optimization, Darren R. Promer

Masters Theses

In this study a new technique is proposed for the determination of elastic-plastic stress-strain relations for isotropic materials using the force-displacement output from an instrumented indentation test, finite element simulation, and machine learning methods. This non-destructive testing methodology has promising potential for industry implementation. Applications to benefit from this method include the characterization of localized material properties on surface engineered components, and the post-manufacturing assessment of material properties for items such as additively manufactured metallic components and load-bearing welded joints.

Currently, the capability of the instrumented indentation test for determining material properties is limited to the elastic modulus and surface …

A Multiscale Thermomechanical Metal Additive Manufacturing Simulation And The Impact Of Geometry On Residual Stress And Distortion, Luis Fernando Silva Velasco

Masters Theses

Metal additive manufacturing is an enabling technology for the rapid prototyping and manufacturing of geometrically complex parts that would otherwise be difficult or impossible to manufacture. However, the manufacturing process can produce undesired residual stresses and distortions. The first part of the work describes the implementation of a multiscale, thermo-mechanical simulation modeling the metal powder bed fusion additive manufacturing process. NASA’s Micromechanics Analysis Code was is to incorporate the microscale effects of an evolving material porosity on the predicted macroscale residual fields. The simulation shows that modeling an evolving material porosity, as the material transitions from a metal powder to …

Those Beyond The Walls: An Archaeological Examination Of Michilimackinac’S Extramural Domestic Settlement, 1760-1781, James Cain Dunnigan

Masters Theses

Ideal for both the French and British, the location of Fort Michilimackinac was selected to serve as a key entrepôt for European goods from the colonized east coast to be traded for furs from the Upper Country. The diverse population that formed around Michilimackinac included French and British soldiers, traders, craftsmen, and their families, as well as large seasonal populations of Native Americans. While the Fort’s interior continues to be vigorously examined, little focus has been directed to the larger, multicultural village that emerged outside the fort’s walls in the latter half of the eighteenth century. Excavations from 1970-1973, conducted …

Optimized System For On-Route Charging Of Battery Electric Buses And High-Fidelity Modelling And Simulation Of In-Motion Wireless Power Transfer, Yogesh Bappasaheb Jagdale

Masters Theses

Electrifying cars, buses and trucks is an attractive means to reduce energy use and emissions, because it involves minimal restructuring of the transportation network. Transit buses drive fixed routes, minimizing driver range anxiety by properly sizing energy storage system but the major challenge to fully electrifying transit buses, is the amount of energy they consume in a day of driving. To enable a full day of operation, batteries need to be large, which is expensive and heavy. This work utilizes real-world transit bus data fed to a battery electric drive-train model to co-optimize charger locations, charger power levels, and vehicle …

Numerical Performance Evaluation Of The Wooden Frame Structures With Adhesive Applied Connection Under Wind And Seismic Loading, Sharthak Bhandary

Masters Theses

The objective of the research is divided into two folds. The first objective is to study the state-of-the-art modeling method for the wooden frame construction, while the second objective is to evaluate the performance of a wooden frame structure with construction adhesives under hazardous loading conditions using the selected numerical modeling method. The numerical modeling tools were classified under academic and commercial categories based on the purpose of their development. Both academic and commercial tools were further classified based on model types of the structural systems (i.e., shear walls and three-dimensional (3D) buildings) and the applied loads (i.e., wind loading …

Using Historical Maps For Contaminated Site Identification And Prediction, And Environmental Justice Implications: A Case Study In Grand Rapids, Michigan, Dana Heusinkveld

Masters Theses

As the production of synthetic chemicals has grown in the past centuries to increase production, lower costs, and generally make our lives more convenient, detecting and understanding the environmental impacts of these compounds has lagged significantly behind their mass production and wide-spread use. To combat this trend, sources of these contaminants, especially those that have been removed from the landscape, need to be quickly identified to make mitigation and remediation efforts more effective. In this study, historical Sanborn maps are used to extract and digitize historical site/land use in Grand Rapids during the early 1900s through the practical application of …

The Urban Morphology Of Hyderabad, India: A Historical Geographic Analysis, Kevin B. Haynes

Masters Theses

Hyderabad, India has undergone tremendous change over the last three centuries. The study seeks to understand how and why Hyderabad transitioned from a north-south urban morphological directional pattern to east-west during from 1687 to 2019. Satellite-based remote sensing will be used to measure the extent and land classifications of the city throughout the twentieth and twenty-first century using a geographic information science and historical-geographic approach. This approach provides the basis for a structured archival historical-geographic analysis. Focusing on Hyderabad, India from 1687 to 2019, the objectives of this research are to: (1) delineate and quantify the geographic extent of built-up …

Silence Is A Luxury, Elise Stephens

Masters Theses

We are beings with at once fragile and resilient senses. Each of us have a threshold that is tested by auditory and visual stimuli that are seemingly constant.

This can lead to discord driving poor choices in resource allotment on a global and for some, a personal scale.

On a global scale, frenzied and misguided journeys to capitalize on the earth’s riches has led to exploitation of both nature and in some cases, societies. At the time of writing, the negative effects of these choices are at the forefront of policy makers’ agendas. In the United States, there are areas …

Artist-Facilitator : Making Knowledge By Making Art, Aaron Broadbent

Masters Theses

This thesis identifies what I view as detrimental effects of confining fine art concepts to their capacity for performance and communication, and illustrates my own attempt to apply artmaking processes to a role outside of the Art World, one which I call the Artist-Facilitator.

In my experience, instead of meaning that artmaking is useful for multisensory learning or multimedia research, this individual actually means that the goal of artmaking is the production of performances and art objects. A common perception holds that artists and their fine art populate the “Art World” and all those things categorized as Design pertain to …

Bug Chaser, Peter Rogers

Masters Theses

The veins of the leaves were bustling roadways, complex interactions that occurred at such a distance from my own anthropocentric understanding, they may as well have inhabited their own universe.

Dwelling within the infinite wonder of these microcosms, I coined myself a nickname that I abode within intimately: Bug Chaser. Perhaps I had heard the term on the news, or caught one of the teachers use it in passing, but as far as I was concerned, the term was entirely of my own creation.

“I’m a bug chaser!” I announced triumphantly to my kindergarten class.

“You mustn’t use that word,” …

Urban Memory : Beijing City Wall Ruins Reconstruction & Exhibition, Yuan Jin

Masters Theses

The question of how to renovate the Beijing City Wall Ruins Park raises issues that engage exhibition, architectural, landscape, and urban design, not to mention cultural relics protection. It demands that we consider our attitude towards history. The walls and towers that used to surround the city have disappeared over years of changes and demolition. Except for the Zhengyangmen Tower and Deshengmen Tower, only a fragment exists: a section of Ming Dynasty wall in the southeast corner of the inner city.

The length of the project site is about 1.5km, which includes the wall fragment. By using the tools of …

Generating Tension : Memorial Of Sexual Slavery, Mary Park

Masters Theses

War crimes, such as slavery and rape can lead to hatred between countries of perpetrators and victims, souring political relationships for generations. Memorials of these atrocities are the physical indication of an effort, however nascent, to continue the dialogue and keep questioning the tragic history. The memorial as a reminder of a specific incident, not only changes the relationship of surrounding spaces within the site but also between different groups that are engaged in that specific history.

In South Korea, the history of sexual slavery by the Japanese Imperial Army during World War II has been a major cause of …

Dialogue Across Time : Atlanta, 1996 And 2020, Qianyu Liu

Masters Theses

In the opening ceremony of the Atlanta Centennial Olympic Games of 1996, millions of people watched Muhammad Ali as a cultural icon carried the Olympic flame torch to light the cauldron. He was shaking from his Parkinson’s, and it was an emotional moment for many people. Atlanta Cauldron Tower was designed by a pioneer contemporary artist, Siah Armajani, who produced a monolithic uninhabited sculpture you cannot climb. The tower of 106ft is still prominent when we look back to the historic photographs today.

However, the tower lost the context it relied upon along with the partial demolition of Centennial Stadium …

Envisioning Work : An Autism Friendly And Anxiety Free Office, Naixin Ren

Masters Theses

Autism spectrum disorder (ASD) refers to a broad range of conditions characterized by challenges with social skills, repetitive behaviors, speech and nonverbal communication. It is estimated that worldwide 1 in 160 children has ASD, and in China, about 1 in 69 children has ASD.

There are many successful educational environments specially designed for people on the spectrum to support learning, understanding, and behaving. However, after graduating, it is usually very hard for people on the spectrum to move toward independence because there is a huge difference between school environments and office environments.

Most office environments are designed to meet the …

Re-Source : Re-Source Your Resources, Raquel Swartz

Masters Theses

Humans are using all of the earth’s natural resources and releasing unprecedented levels of greenhouse gases into the atmosphere, endangering the planet’s viability. The implementation of sustainable design is no longer a luxury, and though eco-conscious construction and architecture have gained traction and have proven to reduce the built world’s contribution to the carbon footprint, interior design lags behind, even though it too, can reduce the industry’s negative impact. If architects and interior designers further consider the interaction between humans and objects with interior space through the awareness of sustainable practices, materials, and finishes, the built world’s contribution to the …

Acoustic Signatures: Their Study, Representation, And Agency In The Experience Of Architectural Spaces, Nathalie D'Hennezel

Masters Theses

I am proposing to engage sound in the design of space through the representation, study, and creation of acoustic signatures.

Un-Black Boxing Mitigation Infrastructures : Proposing Alternative Imaginaries For Mono-Functional And Under-Utilized Urban Backstages, Min Jin Kook

Masters Theses

Cities are full of risk-mitigation infrastructure to protect ourselves from floods, erosion and threatening natural disasters. These infrastructures include underground retention tanks, dams and channelized river. They are purposefully hidden away because they are under highways or underground. Most of risk-mitigation infrastructures are under-utilized ninety- five percent of the time. They only serve one function for two weeks every year. They are empty most of the year. Is there an alternative project to consider these risk-mitigation infrastructures while they are completely mono-functional and under-utilized?

Along with my inquiry to utilize risk-mitigation infrastructures, I am critiquing the “blackboxing” and “under-utilization” of …

Intimacy In Infrastructure, Andrew Sponseller

Masters Theses

This thesis employs public transit to establish regional reclamations of infrastructure, empowering cultural identities through a vernacular that is realized and matured into the capacity of today. The decaying state of our mass transit infrastructure is due to a decline of community ownership and regional identity represented in their architecture.

“Communities” can be considered cities, neighborhoods, towns, or entire regions of States depending on the scale of the infrastructure. Philadelphia, Pennsylvania clearly exhibits the range of this decline. A city that went from being the center of the Pennsylvania Railroad, now is sprinkled with infrastructural shells of the past. These …

Digital Duck, Zach Schumacher

Masters Theses

This thesis seeks to further define “digital” for architecture in the 2020’s, by looking outside the discipline to expand upon the post-digital conversation.

Adapting Home : Residential Development And Domestic Comfort In Vermont, Mikéla Sumner

Masters Theses

Vermont is experiencing a loss of “ruralness” as social insulation replaces physical comfort as the driver of residential design. Furthermore, the pre-packaged comfort often associated with social insulation requires an upfront cost. The variety of Vermont’s housing stock is limited, as most homes are single-family and 36% of Vermonters are currently cost-burdened, meaning they spend over 30% of their income on housing. Ultimately, there is a shortage of housing that can affordably meet diverse comfort needs. Without the ability to adapt the home over time, in the tradition of the local Vermont home, the house is only compatible with specific …

The Knots On The Underside Of The Carpet, Lily Colman

Masters Theses

A woman enters marriage, guided by a rich lineage of strong, lifelong marriages, yet is also caught in a web of misplaced ideals and expectations deferred by culture. She carries the weight of these histories, as well as her own expectations. Throughout history, women have been minimized and shoved into their own separate, domestic “spheres.” Future generations inherit these traumas, which in turn affects how they experience life. When a woman realizes her marriage is not what it should be, that she has been turned into a flat and unfulfilled version of herself and ultimately files for divorce, the weight …

Watermarks : The Catalogue For Home Enthusiasts, Susana Oliveros Amaya

Masters Theses

Not just when tricks are revealed as tricks, but also when they become something else and materials still push one direction but then take a different turn. The wardrobe does not quite fit in your Ford Ka, the shelves are not exactly straight, the bed does not fit the mattress and the cabinets do not line up. The tension between ideals and use opens a space for re-appropriation, one that can reveal and turn its socioeconomic codes against themselves. Perhaps these are precisely the moments of friction when these ideological watermarks can be disrupted.

My Millennial Asian Fetishized American Fantasy, Seyong Ahn

Masters Theses

The perspectives that I present throughout My Millennial Asian Fetishized American Fantasy are South Korean-centric, biased, absurd, skewed, unfair, and real.

Instead of being nostalgic, the contents introduce questions—ones that persist as I examine my design practice. They open a process of dialogue with the present, while provoking a consideration of the future:

1) If I am a product of capitalism and globalization, how might I better interrogate and define my cultural DNA?

2) What is my approach to the evolving conception of graphic design under new (technological, ethical, ontological) conditions?

3) What interests and concerns truly engage me, such …