Browsing by Subject "Observation"
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Item The dynamics of deployment and observation of a rigid body spacecraft system in the linear and non-linear two-body problem(2012-12) Ottesen, David Ryan; Marchand, Belinda G.; Fowler, WallaceModern space situational awareness entails the detection, tracking, identification, and characterization of resident space objects. Characterization is typically accomplished through the use of ground and space based sensors that are able to identify some specific physical feature, monitor unique dynamical behaviors, or deduce some information about the material properties of the object. The present investigation considers the characterizaiton aspects of situational awareness from the perspective of a close-proximity formation reconnaissance mission. The present study explores both relative translational and relative rotational motion for deployment of a spacecraft and observation of a resident space object. This investigation is motivated by specific situations in which characterization with ground or fixed space based sensors is insufficient. Instead, one or more vehicles are deployed in the vicinity of the object of interest. These could be, for instance, nano-satellites with imaging sensors. Nano-satellites offer a low-cost and effective technological platform, which makes consideration of the proposed scenario more feasible. Although the motivating application is rooted in space situational awareness, the techniques explored are generally applicable to flight in the vicinity of asteroids, and both cooperative vs. non-cooperative resident space objects. The investigation is initially focused on identifying the key features of the relative dynamics that are relevant to space situational awareness applications. Subsequently, effective spacecraft control techniques are considered to achieve the reconnaissance goals.Item A field guide to observable phenomena : a tool for aesthetic practice(2004) Bash, Katherine E.; Taylor, Chris, 1965-A Field Guide to Observable Phenomena is the result of various observational investigations of natural phenomena that I have performed during the last two years. In this guide, I write a commentary on the role of naming and active perception, suggest tools for observation, and give examples of named and identified phenomena. Structurally, I am putting forward a mode of classification that can hold both current and future findings. The guide is considered to be an open work as it also lacks a formal conclusion. Operationally, it puts forward questions and rather than answering them directly, it relies upon the reader to participate actively with the text in order that the answers be revealed.Item What’s going on at Zapata Elementary? people, research, and technology in educational spaces : an experiment in experience and possibility(2011-08) Olmanson, Justin Douglas; Liu, Min, Ed. D.; Cary, Lisa J.; Hughes, Joan; Wetzel, Melissa; Stewart, KathleenGiven the proliferation of technological tools, environments, and supports within the field of education, and the predominant investigative orientation of educational technology researchers being intervention-focused, a minority of scholars have called for other ways of understanding the nuance and contours of educational interactions and technology. This study explores the possibilities for such an orientation at the public elementary school level by maintaining a non-traditional theoretical and wide contextual focus. Toward this end, this study performs and constitutes an experimental mode of address meant to further considerations of educational technology use and educational technology discourse in and around school libraries, second, third, fourth, and fifth grade bilingual, ESL, and regular classrooms. This work is a Deleuzian experiment in New Ethnographic Writing and New Ethnography that also explores aspects of critical design ethnography and the affinity-based design of an educational mashup. Ethnographic attentions were applied over four-year period concentrating on language arts, ESL, and literacy activities. Through performative writing, loose networks of individuals, artifacts, places, processes, movement, and machines are explored.