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Gasification and combustion modeling for porous char particles
(Massachusetts Institute of Technology, 2012)
Gasification and combustion of porous char particles occurs in many industrial applications. Reactor-scale outputs of importance depend critically on processes that occur at the particle-scale. Because char particles often ...
The role of hydrodynamic interactions in the dynamics and viscoelasticity of actin networks
(Massachusetts Institute of Technology, 2012)
Actin, the primary component of the cytoskeleton, is the most studied semi-flexible filament, yet its dynamics remains elusive. We show that hydrodynamic interactions (HIs) significantly alter the time scale of actin ...
Automated rapid thermal imaging systems technology
(Massachusetts Institute of Technology, 2012)
A major source of energy savings occurs on the thermal envelop of buildings, which amounts to approximately 10% of annual energy usage in the United States. To pursue these savings, energy auditors use closed loop energy ...
A method to significantly improve finite element stress predictions
(Massachusetts Institute of Technology, 2012)
In this thesis, we present a novel method to improve the finite element stress predictions in static, dynamic and nonlinear analyses of solids. We focus on the use of low-order displacement-based finite elements, 3-node ...
On fuel selection in controlled auto-ignition engines : the link between intake conditions, chemical kinetics, and stratification
(Massachusetts Institute of Technology, 2012)
The objective of this research is to examine the impact fuel selection can have on the high-load limit in a stratified Compression Auto-Ignition (CAI) engine. This was accomplished by first studying the validity of the ...
Active heat transfer enhancement in integrated fan heat sinks
(Massachusetts Institute of Technology, 2012)
Modern computer processors require significant cooling to achieve their full performance. The "efficiency" of heat sinks is also becoming more important: cooling of electronics consumes 1% of worldwide electricity use by ...
Anisotropic ductile fracture of metal sheets : experimental investigation and constitutive modeling
(Massachusetts Institute of Technology, 2012)
Anisotropic mechanical properties are common in plastically deformed or thermomechanically processed metallic materials, e.g. in rolled or extruded sheet. Among them, the anisotropy of large strain plastic deformation and ...
Emergent properties of heterogeneous decomposition networks
(Massachusetts Institute of Technology, 2012)
Organic matter respiration in natural ecosystems is controlled by a network of biologically, physically, and chemically driven processes. Often it is important to estimate total carbon flux from a degradation system or the ...
Modeling buoyancy-driven airflow in ventilation shafts
(Massachusetts Institute of Technology, 2012)
Naturally ventilated buildings can significantly reduce the required energy for cooling and ventilating buildings by drawing in outdoor air using non-mechanical forces. Buoyancy-driven systems are common in naturally ...
DNA ruler : enhancing nanopore sizing resolution by multiple measurements on the same DNA molecule
(Massachusetts Institute of Technology, 2012)
Nanopores are versatile sensors for label-free detection of single molecules and particles that have attracted attention for applications such as DNA sequencing and nanoparticle analysis. Detection of single molecules or ...