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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

FROM MYTH TO METAPHOR TO MEMORY: A RHETORICAL ANALYSIS OF TELEVISED REPRESENTATIONS OF PROJECT APOLLO, 1968-2004

Keltner, Kathy A. 25 September 2007 (has links)
No description available.
42

Observed Flow Characteristics of Rotating Stall Inception and its Prevention Using Discrete Tip Injection in the NASA Stage 35 Axial Compressor with New Analysis Methods

Johnson, Benjamin P. 05 September 2008 (has links)
No description available.
43

Space Shuttle Program (SSP) retirement and NASA transition to the Vision for Space Exploration (VSE)

Reyes, Carlos Joel 20 September 2010 (has links)
On January 14, 2004, President George W. Bush announced the Vision for Space Exploration (VSE). The goals of the vision include developing a new generation launch capability while completing assembly of the International Space Station (ISS) and retiring the Space Shuttle by 2010. In support of this goal, the Space Shuttle Program (SSP) initiated evaluation of hardware, infrastructure, and workforce skill mix needed to continue Space Shuttle flights until the projected 2010 retirement. The SSP also studied how NASA will deploy personnel from, and use the facilities of, the SSP to ensure that the Space Shuttle operates safely through its final flight, and to ensure personnel and facilities from the SSP are effectively transitioned to NASA’s exploration programs. NASA funding, like other federal agencies, is affected by various factors including domestic and international political environments, current and emerging technologies available to meet agency goals, and sustainability and potential economic return of federal expenditures. In this paper I will present a retrospective analysis of federal budget allocations to NASA as a percentage of the Federal Budget from years 1958 to 2010 (adjusted to 1979 dollars). The classic method for calculating net present value (NPV) is not well suited for projecting potential value of future R&D technologies. A quantitative analysis of R&D technologies transferred to private industry will be presented, as well as a description of a method of evaluating their significance will discussed relative to current budgetary considerations will likely for past, current and upcoming funding cycles. The opportunity at hand for NASA’s transition from SSP to Constellation in support of the VSE initiative is to advocate their culture as R&D innovators and emphasize the future benefit of increased funding. / text
44

Mulheres indígenas da \'Çxhab Wala Kiwe\': relações étnico-racial, gênero e sexualidade nos Andes colombianos / Indigenous womens of the Çxhab Wala Kiwe: relations of race and ethnic, gender and sexuality on the colombian Andes

Botero, Waldor Federico Arias 16 June 2016 (has links)
Este trabalho busca compreender as ações das mulheres indígenas Nasa da Asociación de Cabildos Indígenas del Norte del Cauca ACIN, que visam melhorar as condições e situações de vida das mulheres nos territórios de resguardo Çxhab Wala Kiwe. A partir da análise de relatos de mulheres que são líderes locais, dos documentos escritos produzidos pela própria organização e relatos etnográficos, tentamos descrever a maneira como surgiu o Programa Mujer da ACIN, como as mulheres vem enfrentando os desafios para tentar eliminar a violência contra elas (em particular a violência sexual), e a maneira como estabelecem relações com organizações de mulheres externas ao mundo indígena. Na análise, o processo de subjetivação das mulheres se choca com o contexto de guerra da região do norte do Cauca. É demonstrado como as mulheres através da história da organização indígena foram consolidando ferramentas e formas de organização no interior do mundo indígena não só para promover a visibilidade do trabalho das mulheres nas comunidades, como para exigir o fim da violência contra as mulheres e seus direitos particulares, promovendo a formação para a participação ativa nas ações coletivas da comunidade. Essas atividades são desenvolvidas a partir da posição comunitariamente assumida de não participação no conflito armado. Apesar disso, o estudo também mostra como a guerra termina por afetar essas comunidades. / This text aims to describe the actions which nasa indigenous women - they are part of the Asociación de Cabildo Indigenas del Norte del Cauca ACIN - does to improving situations and conditions of life of women in the reservation territories of the Çxhab Wala Kiwe. The analysis is based on different materials as follows: life story of women leaders, official documents produced by the organization, the literature review, and ethnographic account made during field work. With these materials, the text describes how Programa Mujer of ACIN emerged, facing the challenges of trying to eliminate the violence against women (in particular sexual violence). The description also shows the way these women establish relationships with other organizations outside the indigenous world through the program. In the analysis womans subjectivation processes come up with the context of war of north of Cauca. The description shows how women through the history of the indigenous organization has been consolidating tools and forms of organization within the indigenous world to promote the visibility of womens work demanding an end to the violence against women and particularly their rights. In this sense, one issue emphasized by them is the promotion and training for active participation in collective actions of the community. Despite the fact that these communities state their position of nonparticipation in the armed conflict, the analysis shows how war has an impact in these communities and these activities.
45

Mulheres indígenas da \'Çxhab Wala Kiwe\': relações étnico-racial, gênero e sexualidade nos Andes colombianos / Indigenous womens of the Çxhab Wala Kiwe: relations of race and ethnic, gender and sexuality on the colombian Andes

Waldor Federico Arias Botero 16 June 2016 (has links)
Este trabalho busca compreender as ações das mulheres indígenas Nasa da Asociación de Cabildos Indígenas del Norte del Cauca ACIN, que visam melhorar as condições e situações de vida das mulheres nos territórios de resguardo Çxhab Wala Kiwe. A partir da análise de relatos de mulheres que são líderes locais, dos documentos escritos produzidos pela própria organização e relatos etnográficos, tentamos descrever a maneira como surgiu o Programa Mujer da ACIN, como as mulheres vem enfrentando os desafios para tentar eliminar a violência contra elas (em particular a violência sexual), e a maneira como estabelecem relações com organizações de mulheres externas ao mundo indígena. Na análise, o processo de subjetivação das mulheres se choca com o contexto de guerra da região do norte do Cauca. É demonstrado como as mulheres através da história da organização indígena foram consolidando ferramentas e formas de organização no interior do mundo indígena não só para promover a visibilidade do trabalho das mulheres nas comunidades, como para exigir o fim da violência contra as mulheres e seus direitos particulares, promovendo a formação para a participação ativa nas ações coletivas da comunidade. Essas atividades são desenvolvidas a partir da posição comunitariamente assumida de não participação no conflito armado. Apesar disso, o estudo também mostra como a guerra termina por afetar essas comunidades. / This text aims to describe the actions which nasa indigenous women - they are part of the Asociación de Cabildo Indigenas del Norte del Cauca ACIN - does to improving situations and conditions of life of women in the reservation territories of the Çxhab Wala Kiwe. The analysis is based on different materials as follows: life story of women leaders, official documents produced by the organization, the literature review, and ethnographic account made during field work. With these materials, the text describes how Programa Mujer of ACIN emerged, facing the challenges of trying to eliminate the violence against women (in particular sexual violence). The description also shows the way these women establish relationships with other organizations outside the indigenous world through the program. In the analysis womans subjectivation processes come up with the context of war of north of Cauca. The description shows how women through the history of the indigenous organization has been consolidating tools and forms of organization within the indigenous world to promote the visibility of womens work demanding an end to the violence against women and particularly their rights. In this sense, one issue emphasized by them is the promotion and training for active participation in collective actions of the community. Despite the fact that these communities state their position of nonparticipation in the armed conflict, the analysis shows how war has an impact in these communities and these activities.
46

Effects of Subjective Workload Measurement During a Workload Transition on Task Performance

Bowers, Drew 26 August 2014 (has links)
No description available.
47

What Curiosity Taught Us About Life on Mars : And What We Used to Think

Skoog, Samuel January 2016 (has links)
Mitt examensarbete är en video på drygt sex minuter. Videon är animerad i Adobe After Effects. Den har för avsikt att på ett informativt, enkelt och snyggt sätt förklara NASAs Curiosity-uppdrag på Mars, samt summera planetens roll i popkultur genom tiderna. Målgruppen är människor som hellre får information via internet än via papperstidningar, och som gärna vill få en övergripande bild av olika fenomen (i det här fallet Mars och Curiosity). Den är utformad med mobilt tittande i åtanke, vilket också speglas i målgruppsanpassningen. Denna reflektionsrapport är ett komplement till videon, och här har jag för avsikt att berätta om hur (och varför) jag gjort videon. Den kommer även diskutera fenomenet explainer-journalistik. Vad är explainer-journalistik, och varför är det ett viktigt fenomen att förstå för samtida och framtida journalister?
48

A ZigBee-based wireless biomedical sensor network as a precursor to an in-suit system for monitoring astronaut state of health

Dong, Xiongjie January 1900 (has links)
Master of Science / Department of Electrical and Computer Engineering / Steven Warren / Networks of low-power, in-suit, wired and wireless health sensors offer the potential to track and predict the health of astronauts engaged in extra-vehicular and in-station activities in zero- or reduced- gravity environments. Fundamental research questions exist regarding (a) types and form factors of biomedical sensors best suited for these applications, (b) optimal ways to render wired/wireless on-body networks with the objective to draw little-to-no power, and (c) means to address the wireless transmission challenges offered by a spacesuit constructed from layers of aluminized mylar. This thesis addresses elements of these research questions through the implementation of a collection of ZigBee-based wireless health monitoring devices that can potentially be integrated into a spacesuit, thereby providing continuous information regarding astronaut fatigue and state of health. Wearable biomedical devices investigated for this effort include electrocardiographs, electromyographs, pulse oximeters, inductive plethysmographs, and accelerometers/gyrometers. These ZigBee-enabled sensors will form the nodes of an in-suit ZigBee Pro network that will be used to (1) establish throughput requirements for a functional in-suit network and (2) serve as a performance baseline for future devices that employ ultra-low-power field-programmable gate arrays and micro-transceivers. Sensor devices will upload data to a ZigBee network coordinator that has the form of a pluggable USB connector. Data are currently visualized using MATLAB and LabVIEW.
49

Model simulation suitable for an aircraft at high angle of attack

Mohmad Rouyan, Nurhana 01 1900 (has links)
Simulation of a dynamic system is known to be sensitive to various factors and one of them could be the precision of model parameters. While the sensitivity of flight dynamic simulation to small changes in aerodynamic coefficients is typically not studied, the simulation of aircraft required to operate in nonlinear flight regimes usually at high angles of attack can be very sensitive to such small differences. Determining the significance and impact of the differences in aerodynamic characteristics is critical for understanding the flight dynamics and designing suitable flight control laws. This thesis uses this concept to study the effect of the differences in aerodynamic data for different aerodynamic models provided for a same aircraft which is F-18 HARV combat aircraft. The aircraft was used as a prototype for the high angles of attack technology program. However modeling an aircraft at high angles of attack requires an extensive aerodynamic data which are usually di cult to access. All aerodynamic models were collected from open literature and implemented within a nonlinear six degree of freedom aircraft model. Inspection of aerodynamic data set for these models has shown mismatches for certain aerodynamic derivatives, especially at higher angles of attack where nonlinear dynamics are known to exist. Nonlinear simulations are used to analyse three different types of flight dynamic models that use look-up-tables, arc-tangent formulation and polynomial functions to represent aerodynamic data that are suitable for high angles of attack application. To achieve this, a nonlinear six degree of freedom Simulink model was developed to accommodate these aerodynamic models separately. The trim conditions were obtained for different combinations of angles of attack and airspeed and the models were linearized in each case. Properties of the resulting state matrices such as eigenvalues and eigenvectors were studied to determine the dynamic behaviour of the aircraft at various flight conditions.
50

THE IMPLEMENTATION OF NASA’s LOW EARTH ORBITER – TERMINAL AS AN AUTONOMOUS GROUND NETWORK ASSET

Bundick, Steven N., Kremer, Steven E. 10 1900 (has links)
International Telemetering Conference Proceedings / October 25-28, 1999 / Riviera Hotel and Convention Center, Las Vegas, Nevada / As part of NASA’s goal to reduce costs for satellite telemetry and command ground support, the ground network has installed two autonomous ground terminals known as Low Earth Orbiter - Terminal’s, or LEO-T’s. These systems are highly automated and were developed to prove the feasibility of supporting multi-mission satellites in a handsoff mode.

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