Browsing Undergraduate Theses by Title
Now showing items 5090-5109 of 5223
-
Vacuum insulation using perlite powder sealed in plastic and glass
(Massachusetts Institute of Technology, 1993) -
Validating surface evolution modeling on high temperature selective emitters : an investigation of the thermal stability of nano-scale surface structures for thermophotovoltaic systems
(Massachusetts Institute of Technology, 2011)As the world's traditional energy sources come under scrutiny due to dwindling supply and negative environmental impact, a global effort is being made into alternative energy systems. One such system involves the use of ... -
Validation of a numerical model for the analysis of thermal-fluid behavior in a solar concentrator vessel
(Massachusetts Institute of Technology, 2010)The need for innovation in the renewable energy sector is an ever-growing concern. With national-level disasters in the Gulf of Mexico, the necessity to begin the drive to develop effective and practical alternative energy ... -
Valuing project financing using Monte Carlo simulation, with application to the expansion of a chemical company
(Massachusetts Institute of Technology, 2005)The purpose of this thesis is to analyze the specific project value of a chemical company that undertook a major expansion in the late 1990s. The actual details of the investment were unique and conditional on the level ... -
Valve characterization to implement feed-forward control of hydraulically actuated joints
(Massachusetts Institute of Technology, 2008)This thesis characterizes the flow behavior of a Hydraforce SP08-47CL valve given a specific pulse-width modulation (pwm) duty cycle. With a description of valve behavior, a feed-forward term can be implemented in the ... -
Valve design for a hydraulic knee prosthesis.
(Massachusetts Institute of Technology, 1973) -
Vapor-liquid-solid (VLS) growth of lead chalcogenide thin films for infrared sensing applications
(Massachusetts Institute of Technology, 2018)Infrared sensors are used in a variety of applications, from gas and moisture analysers, to human body detection to spectrophotometers. Available IR technology falls on two ends of the spectrum: state-of-art photon detectors ... -
Variable damping controller for a prosthetic knee during swing extension
(Massachusetts Institute of Technology, 2012)Transfemoral amputees exhibit both increased metabolic consumption and gait asymmetry during level ground walking. A variable damping control strategy has been developed for swing extension in order to improve gait symmetry ... -
Variable star photometry in a secondary school curriculum
(Massachusetts Institute of Technology, 2015)The author proved that photometry of variable stars can be performed by anyone using the shoestring budget of only a digital camera along with a laptop. Extrinsic variable star Algol was observed using a 14" telescope as ... -
Variable stiffness orthosis for gait normalization in patients with toe walking
(Massachusetts Institute of Technology, 2019)Duchenne muscular dystrophy (DMD) is an X-linked recessive neuro-muscular disorder that causes progressive muscle degeneration. DMD patients tend to walk on their tip toes because of their weak calf muscles and currently ... -
The variables affecting the crystalization of sodium metabisulfite
(Massachusetts Institute of Technology, 1960) -
Variation of electrical resistance in superelastic NiTi for sensor applications
(Massachusetts Institute of Technology, 2008)Nickel-Titanium (NiTi) is a most commonly known as a heat-activated shape memory alloy. However, the material sometimes displays a constant-temperature property called "superelasticity." A superelastic material is one which ... -
Variation of French horn timbre over the frequency and intensity range of the instrument
(Massachusetts Institute of Technology, 2009)Timbre describes the perceptual difference between sounds with the same loudness and pitch generated from different sources such as different instruments. Each instrument has its own unique timbre making it distinguishable. ... -
Variations in grain boundary segregation for nanocrystalline stability and strength
(Massachusetts Institute of Technology, 2012)In the last few decades, nanocrystalline metals have been of increasing interest. Their ability to show increased yield strength and uniform structure show them to be potentially useful in many applications. Additionally, ... -
Variations in the cobalt based J alloy
(Massachusetts Institute of Technology, 1958) -
Variations of water consumption rates
(Massachusetts Institute of Technology, 1947) -
Vehicle Dynamics on an Electric Formula SAE Racecar
(Massachusetts Institute of Technology, 2021-06)Vehicle dynamics on a Formula SAE vehicle are inter-dependent with almost all mechanical systems on the car and require a thorough understanding of design tradeoffs in order to maximize the vehicle’s acceleration capabilities ... -
Velocity-ion temperature gradient driven modes and angular momentum transport in magnetically confined plasmas
(Massachusetts Institute of Technology, 2007)Plasma confinement experiments continue to uncover fascinating phenomena that motivate theoretical discussion and exploration. In this thesis, we consider the phenomenon of angular momentum transport in magnetically confined ... -
Ventricular fibrillation and fluctuations in the T-wave
(Massachusetts Institute of Technology, 1984)