Search
Now showing items 31-40 of 1107
Crevice volume effect on spark ignition engine efficiency
(Massachusetts Institute of Technology, 2013)
A set of experiments and a simulation study are completed to quantify the effect of the piston crevice on engine efficiency. The simulation study breaks down the loss mechanisms on brake efficiency at different displacement ...
Decentralized mixing function control strategy for multi-robot informative persistent sensing applications
(Massachusetts Institute of Technology, 2014)
In this thesis, we present a robust adaptive control law that enables a team of robots to generate locally optimal closed path persistent sensing trajectories through information rich areas of a dynamic, unknown environment. ...
Magnetic tunable microstructured surfaces for thermal management and microfluidic applications
(Massachusetts Institute of Technology, 2013)
Micro and nanostructured surfaces have broad applications including heat transfer enhancement in phase-change systems and liquid manipulation in microfluidic devices. While significant efforts have focused on fabricating ...
Predictive parameter estimation for Bayesian filtering
(Massachusetts Institute of Technology, 2013)
In this thesis, I develop CELLO, an algorithm for predicting the covariances of any Gaussian model used to account for uncertainty in a complex system. The primary motivation for this work is state estimation; often, complex ...
Renaissance robotics : novel applications of multipurpose robotic arms spanning design fabrication, utility, and art
(Massachusetts Institute of Technology, 2012)
This work investigates, defines, and expands on the use of robotic arms in digital fabrication, design, and art through methods including 3D printing, milling, sculpting, functionally graded fabrication, construction-scale ...
Interannual variability of the Pacific water boundary current in the Beaufort Sea
(Massachusetts Institute of Technology, 2013)
Between 2002 and 2011 a single mooring was maintained in the core of the Pacific Water boundary current in the Alaskan Beaufort Sea near 152° W. Using velocity and hydrographic data from six year-long deployments during ...
Development of novel haptic tools for virtual navigation
(Massachusetts Institute of Technology, 2013)
Learning how to navigate a real space using haptic virtual environments can be challenging. One major issue is the inefficient rate of exploration due to the single point interface of haptic devices. The use of haptic ...
Optimizing the internal reuse of wireless network equipment
(Massachusetts Institute of Technology, 2013)
Reusing high-value wireless network equipment can allow telecommunications providers to achieve both financial and environmental benefits. However, without standardized processes and tools to reuse equipment, the reuse ...
Development of a risk management system for consumables used in biopharmaceutical manufacturing
(Massachusetts Institute of Technology, 2013)
Injectable drugs, like those manufactured by the BioPharmOps group of Novartis Pharmaceuticals AG, must conform to strict guidelines for purity and potency. Recent non-conformances of critical supplied consumables have ...
Design and characterization of tunable stiffness flexural bearings
(Massachusetts Institute of Technology, 2012)
Compressed flexures have a downwards-tunable stiffness in their compliant directions; their stiffness can theoretically be reduced by up to four orders of magnitude. The compression-stiffiness relation is linear for most ...