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Now showing items 11-20 of 470
Three dimensional imaging of multiphase flows : from bubbles to sneezes
(Massachusetts Institute of Technology, 2016)
Experimental spray flow analysis is a difficult fluid dynamics problem because of the high optical density of many sprays. Flow features such as ligaments and droplets break off the bulk liquid volume during the atomization ...
A novel means of cardiac catheter guidance for ablation therapy of ventricular tachycardia
(Massachusetts Institute of Technology, 2014)
This work presents a system for identifying the site of origin of ventricular tachycardia (VT) and guiding a catheter to that site in order to deliver radio-frequency (RF) ablation therapy. Myocardial infarction (MI), also ...
Nonlinear dynamics of complex fluids in fragmentation and fracture
(Massachusetts Institute of Technology, 2017)
The fragmentation and breakup of complex fluids are fundamental elements of many industrial and biological processes. The fracture of food gels, atomization of paints, combustion of fuels containing anti-misting agents and ...
Tailoring hydrodynamics of non-wetting droplets with nano-engineered surfaces
(Massachusetts Institute of Technology, 2013)
Considering that contacts between liquid and solid are ubiquitous in almost all energy processes, including steam turbines, oil pumping, condensers and boilers, the efficiency of energy transportation can be maximized such ...
Hairy interfaces
(Massachusetts Institute of Technology, 2018)
Textured surfaces are known to play an important role in water-repellency and uptake for a number of creatures. While the influence of chemistry and surface roughness on the wettability of surfaces has been studied ...
Assessment of the factors influencing PN emission in a DISI engine under cold-start condition
(Massachusetts Institute of Technology, 2016)
Due to their advantages in higher fuel efficiency and torque compared to conventional port fuel injection (PFI) engines, direct injection spark ignition (DISI) engines have become dominant in gasoline-fueled engines. ...
A methodology to quantify risk of failure for dynamic robots
(Massachusetts Institute of Technology, 2019)
Humans possess an innate sense of danger that guides the execution of extraordinary dynamic maneuvers. They can also use this sense to generate creative recovery strategies to eventually come to a safe stop. This capability ...
Design and large deformation response of additively-manufactured shell-lattices
(Massachusetts Institute of Technology, 2019)
Open-cell cellular solids are porous structures with a large variety of applications, from energy absorption to medical engineering. In an attempt to identify isotropic configurations with high low and large strain mechanical ...
Hardware-efficient quantum error correction with nitrogen-vacancy centers
(Massachusetts Institute of Technology, 2020)
Quantum technologies promise to revolutionize many fields, ranging from precise sensing to fast computation. The success of novel technologies based on quantum effects rests on engineering quantum systems robust to ...
Regularized predictive control framework for robust dynamic legged locomotion
(Massachusetts Institute of Technology, 2020)
Legged robots have the potential to be highly dynamic machines capable of outperforming humans and animals in executing locomotion tasks within dangerous and unstructured environments. Unfortunately, current control methods ...