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Now showing items 11-20 of 73
Impact of ride-sharing on mobility trends and vehicle stock
(Massachusetts Institute of Technology, 2018)
North American transportation industry is on the verge of a revolutionary change. With the advent of car-sharing services and ride-sharing companies, the transportation industry is experiencing a fundamental way in which ...
Root-cause analysis and characterization of oxygen-related defects in silicon PV material : an approach from macro to nanoscale
(Massachusetts Institute of Technology, 2018)
With energy demand forecasted to grow significantly, efforts towards mitigating global warming effects by reducing greenhouse gas emissions are becoming stricter as more power generation plants are deployed to meet the ...
Advanced methods for droplet capture in water recovery systems and agricultural sprays
(Massachusetts Institute of Technology, 2018)
Water scarcity is one of the important challenges of our century. In this thesis, we investigate advanced methods to mitigate it in two ways: water recovery from fog and reducing chemicals runoff in agriculture. In the ...
Building and controlling fluidically actuated soft robots : from open loop to model-based control
(Massachusetts Institute of Technology, 2018)
This thesis describes the creation and control of soft robots made of deformable elastomer materials and powered by fluidics. We embed soft fluidic actuators into self-contained soft robotic systems, such as fish for ...
Tools for managing intermittent water supplies
(Massachusetts Institute of Technology, 2018)
Nearly one billion people receive water from piped networks that are not always pressurized. These intermittent water supplies (IWS) are more likely to recontaminate the distributed water than continuously-operated (or ...
Dynamics, stability and scaling of turbulent methane oxy-combustion
(Massachusetts Institute of Technology, 2018)
Carbon capture and storage (CCS) is an important strategy for reducing CO₂ emissions, with oxy-fuel combustion being one of the most promising technologies because of it is high efficiency and low cost. In oxy-combustion, ...
High-resolution tactile sensing for robotic perception
(Massachusetts Institute of Technology, 2018)
Why is it so difficult for the present-day robots to act intelligently in the real-world environment? A major challenge lies in the lack of adequate tactile sensing technologies. Robots need tactile sensing to understand ...
Spatiotemporal lifecycle assessment of the light-duty vehicle fleet of United States
(Massachusetts Institute of Technology, 2018)
Greenhouse gas (GHG) emission generated by vehicular transportation is one of the most significant challenges facing the world. Automotive manufacturers are actively pursuing technological solutions, such as electrification ...
Stopping self-discharge in metal-air batteries
(Massachusetts Institute of Technology, 2018)
Metal-air batteries boast high theoretical energy densities, but negative electrode corrosion can severely reduce their usable capacity and commercial utility. Most methods to mitigate corrosion focus on electrode and ...
Variational approach to solving the phonon Boltzmann transport equation for analyzing nanoscale thermal transport experiments
(Massachusetts Institute of Technology, 2018)
Over time, technology has shrunk to smaller length scales, and as a result the heat transport in these systems has entered the nanoscale regime. With increasing computational speed and power consumption, there is a need ...