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Now showing items 21-30 of 72
Identifying enterprise leverage points in Defense Acquisition Program performance
(Massachusetts Institute of Technology, 2009)
Large, complex systems development programs in the Department of Defense are finding it more difficult to deliver desired capabilities to the end user on time and on budget than ever before. Evidence exists that almost all ...
Using phase space attractors to evaluate system safety constraint enforcement : case study in space shuttle mission control procedure rework
(Massachusetts Institute of Technology, 2009)
As the complexity and influence of engineering systems in modern society increases, so too does their potential to create counterintuitive and catastrophic accidents. Increasingly, the accidents encountered in these systems ...
Managing unarticulated value : changeability in multi-attribute tradespace exploration
(Massachusetts Institute of Technology, 2006)
A framework for creating value robust systems in the face of changing value perceptions during the architecture and design of systems is proposed. Both unarticulated value, that which is not explicitly communicated to ...
Infrastructure investment and policy management of water resources for small-scale irrigated agriculture
(Massachusetts Institute of Technology, 2003)
We investigate the options for enhancing the welfare of small farmers in Thailand through subsidies of irrigation infrastructure. Enhanced water storage and irrigation can significantly improve yield and the welfare of the ...
Beating the system : accelerating commercialization of new materials
(Massachusetts Institute of Technology, 2005)
Over the past century, materials have faced notoriously long delays between invention and commercialization. These delays make private investment very difficult, and can prevent good materials from reaching markets. A ...
System transition : dynamics of change in the US air transportation system
(Massachusetts Institute of Technology, 2008)
The US Air Transportation System is currently facing a number of challenges including an increasing demand for travel and growing environmental requirements. In order to successfully meet future needs, the system will need ...
Energy system development in Africa : the case of grid and off-grid power in Kenya
(Massachusetts Institute of Technology, 2008)
This research used a combination of a grounded theory approach and system dynamics to study the electric power system in Kenya and to model the feedback at work in the development of the system. The ethnographic study ...
A model to design a stochastic and dynamic ground delay program subject to non-linear cost functions
(Massachusetts Institute of Technology, 2008)
When inclement weather reduces the arrival capacity of a busy metropolitan airport, it may lead to significant airborne delays. Delaying aircraft in the air consumes additional fuel, increases overall air traffic congestion, ...
Integrating demand into the U.S. electric power system : technical, economic, and regulatory frameworks for responsive load
(Massachusetts Institute of Technology, 2005)
The electric power system in the US developed with the assumption of exogenous, inelastic demand. The resulting evolution of the power system reinforced this assumption as nearly all controls, monitors, and feedbacks were ...
Corporate decision analysis : an engineering approach
(Massachusetts Institute of Technology, 2006)
We explore corporate decisions and their solutions under uncertainty using engineering methods. Corporate decisions tend to be complex; they are interdisciplinary and defy programmable solutions. To address these challenges, ...