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8.231 Physics of Solids I, Fall 2002

REA Auditado

Introduction to the basic concepts of the quantum theory of solids. Topics: periodic structure and symmetry of crystals; diffraction; reciprocal lattice; chemical bonding; lattice dynamics, phonons, thermal properties; free electron gas; model of metals; Bloch theorem and band structure, nearly free electron approximation; tight binding method; Fermi surface; semiconductors, electrons, holes, impurities; optical properties, excitons; and magnetism. From the course home page: Course Highlights Physics of Solids I provides an introduction to the basic concepts of the quantum theory of solids.

Tema: general: 

• Ciencias›Física

The structure and rheological properties of liquified natural gas gelled with water and methanol clathrates

REA Auditado

by Lucile M. Shanes. Thesis. 1977. Ph.D.--Massachusetts Institute of Technology. Dept. of Chemical Engineering. Microfiche copy available in Archives and Science. Bibliography : leaves 414-426.

Tema: general: 

• Ingeniería y Ciencias Aplicadas›Ingeniería›Ingeniería Química

8.333 Statistical Mechanics I: Statistical Mechanics of Particles, Fall 2005

REA Auditado

Statistical Mechanics is a probabilistic approach to equilibrium properties of large numbers of degrees of freedom. In this two-semester course, basic principles are examined. Topics include: thermodynamics, probability theory, kinetic theory, classical statistical mechanics, interacting systems, quantum statistical mechanics, and identical particles.

Tema: general: 

• Ciencias›Física

1.85 Water and Wastewater Treatment Engineering, Spring 2005

REA Auditado

Theory and design of systems for treating industrial and municipal wastewater and potable water supplies. Methods for characterizing wastewater properties. Physical, chemical, and biological processes, including primary treatment, and suspended growth and fixed-film methods for secondary treatment. Nutrient removal. Reactor design and process kinetics. State-of-the-art processes. Sludge processing and disposal.

Tema: general: 

• Ingeniería y Ciencias Aplicadas›Ingeniería›Ingeniería Civil y Ciencia de los Materiales

Measurement of work function in CF₄ gas

REA Auditado

CF4 gas is useful in many applications, especially as a drift gas in particle detection chambers. In order to make accurate measurements of incident particles the properties of the drift gas must be well understood. An important property of CF4 which is important for determining particle energy in detectors, the work function, is disputed and not well known. This thesis measures the work function of CF4 gas for use in the Dark Matter Time Projection Chamber as well as all experiments that use CF4 as a drift gas.

Tema: general: 

• Ciencias›Física

Growth and Properties of (001)-oriented Pb(Zr₀.₅₂Ti₀.₄₈)O₃/LaNiO₃ Films on Si(001) Substrates with TiN Buffer Layers

REA Auditado

Pulsed laser deposition has been used to grow Pb(Zr₀.₅₂Ti₀.₄₈)O₃ (PZT)/LaNiO₃ (LNO) heterostructures with restricted crystallographic orientations on bare Si(001) and SiO₂-coated Si(001) substrates, using TiN buffer layers. The effect of background gas pressure on orientation of the thin films was investigated in detail. XRD analyses showed that under optimized conditions, (001)-oriented PZT/LNO/TiN heterostructures could be grown on either Si(001) or SiO₂/Si substrates. The (001)-textured PZT films had remnant polarizations as high as 23µC/cm², and also had a low coercive field.

Tema: general: 

• Ingeniería y Ciencias Aplicadas›Ciencias Computacionales

Probabilistic aerothermal design of gas turbine combustors

REA Auditado

This thesis presents a probability-based framework for assessing the impact of manufacturing variability on combustor liner durability. Simplified models are used to link combustor liner life, liner temperature variability, and the effects of manufacturing variability. A probabilistic analysis is then applied to the simplified models to estimate the combustor life distribution. The material property and liner temperature variations accounted for approximately 80 percent and 20 percent, respectively, of the combustor life variability.

Tema: general: 

• Ingeniería y Ciencias Aplicadas›Ingeniería›Ingeniería Aeronáutica y Astronáutica

Evaluation of sorbents for the cleanup of coal-derived synthesis gas at elevated temperatures

REA Auditado

Integrated Gasification Combined Cycle (IGCC) with carbon dioxide capture is a promising technology to produce electricity from coal at a higher efficiency than with traditional subcritical pulverized coal (PC) power plants. As with any coal-based technology, however, it is of critical importance to develop efficient techniques to reduce the emissions of its many environmental pollutants, including not only carbon dioxide, but also sulfur and trace metals such as lead or mercury.

Tema: general: 

• Ingeniería y Ciencias Aplicadas›Ingeniería›Ingeniería Química

Feasibility and cost of converting oil- and coal-fired utility boilers to intermittent use of natural gas

REA Auditado

The continuous or intermittent use of natural gas in place of
oil or coal in existing utility boilers would reduce emissions of sulfur and
thereby the concentration of sulfate ions in precipitation. This report
examines the technological feasibility and capital cost of retrofitting oil
and coal fired utility boilers to burn intermittently natural gas and the
parent fuel.

Tema: general: 

• Ingeniería y Ciencias Aplicadas›Ingeniería›Ingeniería Ambiental, Hidráulica y Oceánica

Modeling of gas hydrates from first principles

REA Auditado

Ab initio calculations were used to determine the H20-CH4 potential energy surface (PES) accurately for use in modeling gas hydrates. Electron correlation was found to be treated accurately by the second-order Moller-Plesset method (MP2). However, a large basis set, cc-pVQZ, was found to be necessary in order to compute the binding energies to within 0.1 kcal/mol of the basis set limit. In order to sample accurately the PES, the H2O-CH4 energy of interaction was computed at 18,000 points.

Tema: general: 

• Ingeniería y Ciencias Aplicadas›Ingeniería›Ingeniería Química