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Profilometry with volume holographic imaging
(Massachusetts Institute of Technology, 2006)
High resolution, non-contact object profile measurement (profilometry) at long working distance is important in a number of application areas, such as precise parts manufacturing, optical element grounding and polishing, ...
A continuum theory with long-range forces for solids
(Massachusetts Institute of Technology, 2005)
A non-local integral-type continuum theory, introduced by Silling [61] as peridynamic theory, is analyzed. The theory differs from classical (local) continuum theories in that it involves long-range forces that act between ...
Active combustion control : modeling, design and implementation
(Massachusetts Institute of Technology, 2004)
Continuous combustion systems common in propulsion and power generation applications are susceptible to thermoacoustic instability, which occurs under lean burn conditions close to the flammability where most emissions and ...
Dynamics and statics of actin assemblies
(Massachusetts Institute of Technology, 2004)
The conversion of chemical energy into mechanical forces that powers cell movements is a ubiquitous theme across biology. The acrosome reaction of Limulus sperm is a simple example of such a dynamical transformation where ...
Compensating for model uncertainty in the control of cooperative field robots
(Massachusetts Institute of Technology, 2002)
Current control and planning algorithms are largely unsuitable for mobile robots in unstructured field environment due to uncertainties in the environment, task, robot models and sensors. A key problem is that it is often ...
Defining the role of elastic lubricants and micro textured surfaces in lubricated, sliding friction
(Massachusetts Institute of Technology, 2008)
Solutions for reducing friction in sliding, lubricated systems include modifying lubricant rheology using polymers and adding a micro-scale texture to the sliding surfaces, but the mechanism of how lubrication properties ...
MEMS relays for make-break power switching applications : {111} silicon etched planar electrical contacts
(Massachusetts Institute of Technology, 2008)
Relays and switches are of interest in applications such as test equipment, radar, communications, and power systems, amongst others. Unlike solid state switches, mechanical relays provide galvanic isolation across the ...
A virtual environment system for the study of human arm tremor
(Massachusetts Institute of Technology, 1989)
Origami-inspired nanofabrication utilizing physical and magnetic properties of in situ grown carbon nanotubes
(Massachusetts Institute of Technology, 2010)
Carbon nanotubes (CNTs), in particular the vertically-aligned variety grown through a plasma enhanced chemical vapor deposition (PECVD)-based process, are highly versatile nanostructures that can be used in a variety of ...
Dynamic reduced order modeling of entrained flow gasifiers
(Massachusetts Institute of Technology, 2010)
Gasification-based energy systems coupled with carbon dioxide capture and storage technologies have the potential to reduce greenhouse gas emissions from continued use of abundant and secure fossil fuels. Dynamic reduced ...