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The development of a proff of principle superfluid Joule-Thomson refrigerator for cooling below 1 Kelvin
(Massachusetts Institute of Technology, 2005)
A new type of sub-Kelvin refrigerator, the superfluid Joule-Thomson refrigerator, has been developed and its performance has been experimentally verified. This refrigerator uses a liquid superfluid mixture of He and 4He ...
Structure and formation of β-sheet fibers
(Massachusetts Institute of Technology, 2003)
The spontaneous organization of protein monomers into fibers, bundles and networks is central to biology. Inspired by the repetitive patterns found in the amino acid sequence of natural fibrous proteins, short peptides ...
Macro scale physical model of nanoindentation on vertically aligned carbon nanotube forests
(Massachusetts Institute of Technology, 2004)
Currently the process of nanoindentation is being explored as a reliable means of determining the mechanical properties of carbon nanotubes (CNTs) and the constituent tubes of vertically aligned carbon nanotube (VACNT) ...
Advancing clinical gait analysis through technology and policy
(Massachusetts Institute of Technology, 2009)
Quantitatively analyzing human gait biomechanics will improve our ability to diagnose and treat disability and to measure the effectiveness of assistive devices. Gait analysis is one technology used to analyze walking, but ...
Design upgrade for 2.670 compressed air robot
(Massachusetts Institute of Technology, 2009)
2.670 is an introductory Mechanical Engineering course that introduces students to the fundamentals of machine tool and computer tool use through the fabrication of a robot that is powered by compressed air. The compressed ...
Wireless bicycle assist : structural analysis of outer casing
(Massachusetts Institute of Technology, 2009)
Although cost effective and environmentally friendly, bicycles are impractical for many users due to the required strength and physical exertion. The GreenWheel is a set of mechanical and electronic devices that provide ...
Design and control of a planar two-link manipulator for educational use
(Massachusetts Institute of Technology, 2009)
This paper proposes a new robotic planar two-link manipulator design for educational use. Planar two-link manipulators are among the most accessible two-degree-of-freedom robots for students because they function like human ...
Systematic characterization and calibration of a three dimensional ultrasonic positioning system for use in mobile robots
(Massachusetts Institute of Technology, 2009)
This thesis examined the characteristics of the Hexamite Hx11 ultrasonic sensor for the purpose of three dimensional positioning for mobile robots with multi-plane motions. The sensor system was studied and an experiment ...
Management of a high mix production system with interdependent demands : simulation of proposed policies
(Massachusetts Institute of Technology, 2009)
The finished goods inventory management in the accessories area of a material testing company is complex. There is interdependence between the demands of products and they can be sold both as part of systems and as individual ...
Centrifugal casting and fast curing of polydimethylsiloxane (PDMS) for the manufacture of micro and nano featured components
(Massachusetts Institute of Technology, 2009)
The thermosetting resin polydimethylsiloxane (PDMS) is commonly used to prototype micro and nano featured components. In the field of microfluidics, PDMS-based devices have been used for cell sorting, cell culturing, ...