Two sets of concerns have motivated and sustained the research in my dissertation. First, modern ideas of technology and engineering have been over-represented by their dominant forms: that technology is all about progress and the more advanced "high" technology and that engineering chiefly concerns quantity, efficiency, problem-solving, and "better" machines. Second, these potent values in technology and engineering, as a conceptual whole, tend to reinforce each other and create conditions conducive to its sociocultural reproduction that discounts and subjugates viable alternative practices. My dissertation draws on both historical and philosophical approaches to the question of technology and engineering. My historical-linguistic study looks for the historical meanings of the two words—technology and engineering–in connection with their modern counterparts and discusses the social values and conditions that shaped the dynamics of their early development to understand and deconstruct their modern dominant representation. The analysis of ancient writings locates precedent for dominant engineering practice in ancient siege engines and military engineering, where qualities such as quantity, power, superiority, and ingenuity reinforced each other at the critical times of high-stakes siege warfare. I demonstrate how these interlocking qualities became the ideological basis for an enduring historical-conceptual structure of the dominant ideas of engineering that, despite strikingly different social contexts, continues to the present and limits the diversity of knowledge and participants. Returning back to the present, I develop a philosophical critique of contemporary engineering as "technology of technology," in that modern dominant engineering practice becomes technically provincial yet socially ambitious for our personal and institutional technical practice. In this process, certain practices in engineering, including communication, ethical reasoning, empathy, etc., have been marginalized and become what I call the "subjugated technical practice." By identifying the specific criteria and values that systematically discount and exclude the subjugated technical practice in different aspects, my analysis highlights and validates the latter's extraordinary qualities that contribute no less significantly to the success of engineering practice. Finally, to explore the possibilities of substantive policy changes, I propose theory and practice under the heading of "critical reflexive technology" and call for radical changes and critical participation from within and beyond engineering. / Doctor of Philosophy / The dissertation is an interdisciplinary project seeking to critique and engage with contemporary engineering practice that predominantly emphasizes certain values—such as quantity, efficiency, problem-solving, and "better" machines—and narrows the diversity of knowledge and participants. Toward this end, my research has two parts: one that concerns the genesis and perpetuation of the dominant ideas of engineering in history and the other that is grounded in the philosophical critique of contemporary engineering practice. My historical analysis carries out etymological studies of words and uncovers the social context that has shaped their meanings since antiquity. Whereas technology, in the sense of Ancient Greek techne, denotes effective means toward an end that is diverse in scope with many possibilities, the idea of engineering has drawn from the concepts of engines and machines and connoted a tendency for means and goals that can be evaluated more or less quantitatively. Emphasis on quantity varied in degree and was not universal. Still, it was most conspicuous in the ancient writing of military engineering on siege engines, when numbers were correlated with the ideas of power, superiority, and ingenuity at the critical times of high-stakes siege warfare. I argue that while these ideas of engineering initially claimed precedence in the context of military conflicts and war engines, they coalesced into an integrated value system and became the ideological basis for the narrowed concepts of modern engineering. My philosophical critique of modern engineering characterizes it as a negative instance of "technology of technology," in that widespread practice in engineering becomes technically provincial yet socially ambitious for our personal and institutional technical practice. In this process, certain practices in engineering, including communication, ethical reasoning, empathy, etc., have been marginalized and become what I call the "subjugated technical practice." By identifying the criteria and values that render the subjugated technical practice irrelevant and undesirable in engineering, my analysis calls attention to the latter's extraordinary qualities that contribute no less significantly to the success of engineering practice. Finally, to explore the possibilities of substantive policy changes, I propose theory and practice under the heading of "critical reflexive technology" and call for radical changes and critical participation from within and beyond engineering.

<p>Since the late 1970s, biomedical researchers have heavily invested in the development of portable insulin pumps that allow people with Type 1 Diabetes (T1D) to carry several days-worth of insulin to be injected on an as-needed basis. That means fewer needles and syringes, making regular insulin injections less time consuming and troublesome. As insulin pump use has become more widespread over the past twenty years among people with T1D, the social and cultural effects of using these medical devices on their everyday experiences have become both increasingly apparent for individuals yet consistently absent from social and cultural studies of the disease.</p><p><br></p><p>In this dissertation, I explore the technological, medical, and cultural networks of insulin pump treatment to identify the role(s) these biomedicalized treatment acts play in the structuring of people, their bodies, and the cultural values constructed around various medical technologies. As I will show, insulin pump treatment alters people’s bodies and identities as devices become integrated as co-productive actors within patient-users’ biological and social systems. By analyzing personal interviews and digital media produced by people with T1D alongside archival materials, this study identifies compulsory patterns in the practices, structures, and narratives related to insulin pump use to center chapters around the productive (and sometimes stifling) relationship between people, bodies, technologies, and American culture.</p><p><br></p><p>By analyzing the layered and intersecting sites of insulin pump treatment together, this project reveals how medical technologies, health identities, bodies, and cultures are co-constructed and co-defined in ways that bind them together—mutually constitutive, medically compelled, cultural and social. New bodies and new systems, I argue, come with new (in)visibilities, and while this new technologically-produced legibility of the body provides unprecedented management of the symptoms and side-effects of the disease, it also brings with it unforeseen social consequences that require changes to people’s everyday lives and practices. </p>

<div><p>A variety of passenger car-trailer connections exist on the market. One specific type of the connections provides a tensile force measurement capability for the purpose of providing feedback for the semi-autonomous trailer’s control system. Semi-autonomous trailer is an innovative technology that can encourage drivers to use smaller vehicles for towing, which will contribute to restoration and improvement of urban infrastructure (NAE Grand Challenges for Engineering, 2020). The vehicle-semi-autonomous trailer connection’s safety concerns depend on multiple factors, but start with either a mechanical, or an electrical failure. The topic of safety of passenger car-semi-autonomous trailer connections is not well present in literature. The connections’ mechanical failures under load are in the focus of this work. The author addressed the following research question and the sub question. How do the existing “passenger car-trailer” connections with tensile force measurement capability compare to one another under load in terms of the possible failure? What is the failure mode of each of the compared connections? The author selected three prototypes from the literature, built three-dimensional (3D) models in SolidWorks 2018 and simulated the tests in the program’s add-on in accordance with the requirements of an industry standard on real-life testing of specific vehicle systems. The author compared the three prototypes by a number of different parameters. The research showed that none of the three existing prototypes are public road-ready in terms of safety. The study can be useful for future designers of passenger-car-semi-autonomous trailer connections.</p></div>