Constellation Training Facility Support

The National Aeronautics and Space Administration is developing the next set of vehicles that will take men back to the moon under the Constellation Program. The Constellation Training Facility (CxTF) is a project in development that will be used to train astronauts, instructors, and flight controllers on the operation of Constellation Program vehicles. It will also be used for procedure verification and validation of flight software and console tools. The CxTF will have simulations for the Crew Exploration Vehicle (CEV), Crew Module (CM), CEV Service Module (SM), Launch Abort System (LAS), Spacecraft Adapter (SA), Crew Launch Vehicle (CLV), Pressurized Cargo Variant CM, Pressurized Cargo Variant SM, Cargo Launch Vehicle, Earth Departure Stage (EDS), and the Lunar Surface Access Module (LSAM). The Facility will consist of part-task and full-task trainers, each with a specific set of mission training capabilities. Part task trainers will be used for focused training on a single vehicle system or set of related systems. Full task trainers will be used for training on complete vehicles and all of its subsystems. Support was provided in both software development and project planning areas of the CxTF project. Simulation software was developed for the hydraulic system of the Thrust Vector Control (TVC) of the ARES I launch vehicle. The TVC system is in charge of the actuation of the nozzle gimbals for navigation control of the upper stage of the ARES I rocket. Also, software was developed using C standards to send and receive data to and from hand controllers to be used in CxTF cockpit simulations. The hand controllers provided movement in all six rotational and translational axes. Under Project Planning & Control, support was provided to the development and maintenance of integrated schedules for both the Constellation Training Facility and Missions Operations Facilities Division. These schedules maintain communication between projects in different levels. The CxTF support provided is one that requires continuous maintenance since the project is still on initial development phases

Speaking Private Authority: The Construction of Sustainability in Forests and Fisheries

The aim of this dissertation is to expand upon current understandings of the emergent global phenomenon that is private authority. Private authority is a process wherein private actors create, implement, and enforce rules aimed at managing global problems. As private authority is becoming increasingly important in the conduct of global governance, broadening our understanding of it will serve the field of International Relations. In this dissertation I argue that private actors are not simply outgrowths of structures or certain material conditions, rather they are purposive actors strategically pursuing an agenda. As such, explaining private authority requires an examination of the constitutive elements that underlie this social phenomenon––to which I apply an innovative conceptual and analytical framework that combines social network theory with discourse analysis. I applied these tools to two cases taken from the environmental sector––forests and fisheries. I found that as a result of the development of a greater networked character to environmental politics, the actors that were best able to generate and wield private authority were those that were able to construct discursive nodal points around which other competing actors could converge––at the level of identity. The construction of nodal points placed these private actors in privileged positions in-between competing networks––making them network connectors. In this position they are able to facilitate the flow of power across networks and convert such into private authority, at a rate greater than that of their competitors. As related to the cases, I found that in forests and fisheries sectors it was the Forest Stewardship Council and Marine Stewardship Council that emerged as the most prominent and expansive private authorities. They did so as a result of their ability to construct a nodal point around their tailored definition of what sustainable development meant, and looked like in practice. This placed them in-between two powerful networks (the environmental NGO network and the industrial network), facilitating the flow of power between them, and leveraging such to expand their programs beyond that of competing programs. Thus, social position plays a crucial role in determining the success of private authority programs

Analysis of lifting performance capacity through an integrated learning curve model

Physical fitness specific to job demands is necessary for jobs that require moderate or heavy effort. Fitness training is needed not just when a new job is learned but also when an individual has been away from the job for a few weeks and returns to perform the task. The basic problem is to have a good understanding of the dynamics of performance capacities to establish training and retraining regimes to prevent overexertion. To obtain this, a better understanding of the behavior of performance capacity over time is necessary. A performance capacity training regimen was designed for tasks that required moderate to heavy effort to study how capacity behaved over time. Specific attention was given to the gains between the layoff period and the gains before and after the lay off break. Base models were derived centered on learning curves. These base models will help estimate the gains in work capacity of a constant task dependent on time. The investigation gave way to mathematical models needed to estimate a useful work capacity for a specific task and age group over a given time period. If implemented properly, this model can help to estimate the workers limitations so as to develop better training and retraining regimes and preventing overexertion

Portfolio

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