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Prediction of early-age cracking of UHPC materials and structures : a thremo-chemo-mechanics approach
(Massachusetts Institute of Technology, 2005)
Ultra-High Performance Concrete [UHPC] has remarkable performance in mechanical properties, ductility, economical benefit, etc., but early-age cracking of UHPC can become an issue during the manufacturing process due to ...
Patterns of shallow clouds and rainfall over the Amazon : climatic impacts of deforestation
(Massachusetts Institute of Technology, 2005)
(cont.) and, to a lesser extent, cold cloud patterns over the Amazon. Through complex interactions, the results reported in this thesis may have important implications for the local ecosystem dynamics of the Amazon, for ...
PCoord : a decentralized network coordinate system for Internet distance prediction
(Massachusetts Institute of Technology, 2005)
Several recently emerged Internet services make use of application-level or overlay networks. Examples of such services include overlay multicast, structured peer-to- peer lookup services, and peer-to-peer file sharing. ...
Structural opportunities of ETFE (ethylene tetra fluoro ethylene)
(Massachusetts Institute of Technology, 2005)
An exploration of ETFE (ethylene tetra fluoro ethylene) foil cushions was performed in its use for building cladding. ETFE foil cushions consist of alternating layers of ETFE film and air cavities. An inflation system ...
Observability of Origin-Destination matrices for Dynamic Traffic Assignment
(Massachusetts Institute of Technology, 2005)
The estimation of dynamic Origin-Destination (O-D) matrices from aggregated sensor counts is one of the most important and well-researched problems in Dynamic Traffic Assignment (DTA) systems. In practice, more often than ...
Decision aids for tunnel exploration
(Massachusetts Institute of Technology, 2005)
Tunnels are subsurface passages which are often constructed without removing the overlying rock or soil. It follows that the lack of a priori knowledge of subsurface conditions poses major challenges in their preliminary ...
A method for using polyethylene passive samplers to measure polycyclic aromatic hydrocarbon chemical activity in sediments
(Massachusetts Institute of Technology, 2005)
In order to aid in the determination of the hazards posed by hydrophobic organic compounds (HOCs) in sediment beds, a method for the use of polyethylene (PE) sheets as passive sampling devices for measuring chemical ...
Valuing innovative technology R&D as a real option : application to fuel cell vehicles
(Massachusetts Institute of Technology, 2005)
This thesis aims to elucidate real option thinking and real option valuation techniques for innovative technology investment. Treating the fuel cell R&D investment as a real option for General Motor's light passenger vehicle ...
Moisture degradation in FRP bonded concrete systems : an interface fracture approach
(Massachusetts Institute of Technology, 2005)
(cont.) characterization, and kink criterion implementation, form a synergistic analysis of the mechanistic debonding behavior affected by moisture. Results have shown that moisture affected debonding is a highly complex ...
Dynamic action spaces for autonomous search operations
(Massachusetts Institute of Technology, 2005)
This thesis presents a new approach for a Navy unmanned undersea vehicle (UUV) to search for and detect an evading contact. This approach uses a contact position distribution from a generic particle filter to estimate the ...