2.003 Modeling Dynamics and Control I (MIT)
This course is the first of a two term sequence in modeling, analysis and control of dynamic systems. The various topics covered are as follows: mechanical translation, uniaxial rotation, electrical circuits and their coupling via levers, gears and electro-mechanical devices, analytical and computational solution of linear differential equations, state-determined systems, Laplace transforms, transfer functions, frequency response, Bode plots, vibrations, modal analysis, open- and closed-loop con
21H.931 Seminar in Historical Methods (MIT)
This subject is designed to give 21H majors and minors an introduction to the methods that historians use to interpret the past. We will focus on two areas: archives and interpretation. In our work on archives, we will ask what constitutes an archive. We will visit one or two local archives, speak with archivists, and assemble our own archive related to life at MIT in 2003. Once we have a better understanding of the possibilities and limitations of historical archives, we will turn to the task o
Statistics - an intuitive introduction : central tendency
Statistical data have a tendency to cluster around some central point. How do we determine this point? Is there just one way of doing it or more than one?
Upholstery Sample with Central Panel
Upholstery fabric with plum background and central panel, sand borders and gold line - from the The Betty Smithers Design Collection at Staffordshire University.
Numbers, Symmetries and Groups
This module aims to provide an introduction to axiomatic reasoning in mathematics, particularly in relation to the perspective adopted by modern algebra. Properties of the standard number systems will be developed. The abstract definition of a group will be motivated by a number of concrete examples. Standard results in the theory of groups will be proved rigorously. Applications of group theory in geometry will be stressed.
Interdisciplinary Science Near Space Student Document
Near Space is an introduction to some of the scientific concepts of the global climate system, and to the concept of anthropogenic climate change. In this module we will look at physical, chemical and biological influences on the climate.
Interdisciplinary Science Evolution Student Document
Evolution by Natural Selection is the fundamental theorem of the biosciences, and it is a concept
which is increasingly applied to other areas including computing, economics and statistics. This
module aims to introduce the fundamental concept of evolution by selective adaptation and then to analyse an in-depth example of evolutionary change.
Renewable resource exploitation: fishery regulation: lecture slides
Lecture slides for an Introduction to Resource Economics course, taught by Aaron Hatcher, of the University of Portsmouth in 2008. Available in PDF format.
What is econometrics for? - Introductory Handout
This short handout contributes to the motivation/introduction of an econometrics module. It takes students through the key features of a published example of applied econometrics.
Natural resource exploitation: basic concepts: lecture slides
Lecture slides for an Introduction to Resource Economics course, taught by Aaron Hatcher, of the University of Portsmouth in 2008. Available in PDF format.
TALAT Lecture 1100.01: Introduction: Aluminium, a Light Metal
This lecture provides basic information about the history of aluminium, the principles behind the production of primary metal, environmental properties, potential applications, areas of application. The lecture is recommended for those situations, where a brief, general background information about aluminium is needed as an introduction of other subject areas of aluminium application technologies. This lecture is part of the self-contained course "Aluminium in Product Development", which is trea
TALAT Lecture 3204: The Freezing of Castings
This lecture provides an introduction to solidification theory; it aims at achieving an essential background understanding of solidification and cast structures. Basic knowledge of the solidification of metals is assumed.
TALAT Lecture 2110.02: Product information structure, business concept and LCA
This lecture gives a brief introduction to the product information structure, a sustainable business concept and Life Cycle; it presents the product and process "Generic Code" - the chromosomes; it generates interest about the concept of "Know Your Product", "Life Cycle Logistics", "Universal Virtues" and "Material/Component Hierarchical Structure" and their use creating a sustainable business concept; it imparts knowledge about Life Cycle Assessment. Some familiarity with QFD (Quality Functions
TALAT Lecture 3208: The Finishing of Castings
This lecture provides an introduction to some of the finer points in the production of high quality castings. The students will be able to understand the various processes for sealing porosity in badly made castings and to appreciate factors influencing the accuracy of castings, including a basic understanding of how to control and measure casting dimensions. Basic understanding of the foundry industry is assumed.
TALAT Lecture 3201: Introduction to Casting Technology
This lecture provides an introduction to the techniques used to produce castings and to the range of castings produced; it aims at gaining an appreciation of the production and application of castings.
TALAT Lecture 1201: Introduction to Aluminium as an Engineering Material
This lecture provides an introduction to metallurgical concepts necessary to understand how structural features of aluminium alloys are influenced by alloy composition, processing and heat treatment, and the basic affects of these parameters on the mechanical properties, and hence engineering applications, of the alloys. It is assumed that the reader has some elementary knowledge of physics, chemistry and mathematics.
TALAT Lecture 3207: Solidification Defects in Castings
This lecture provides an introduction to the causes and remedies of the main solidification defects in castings. The students should be able to diagnose the major defects in castings and propose methods of preventing them. Basic knowledge of physics and foundry practice is assumed.
Injection-moulded protractor
The colours in the image are the result of birefringence and relate to the residual strain in the polystyrene. The pattern of strain is indicative of the flow of material during the injection process and it highlights the injection point (at 152 degrees on the outer scale), and two 'weld lines' (at 338 and on the central bar) where two distinct flows of material meet. The weld line is a common point of failure because there is limited intermixing of the two fronts during the time allowed.
Slip by dislocation glide
Animation of slip by dislocation glide. Dislocation glide allows plastic deformation to occur at a much lower stress than would be required to move a whole plane of atoms past another. See also the bubble raft experiment (videos 17 and 18). From TLP: Introduction to dislocations, http://www.msm.cam.ac.uk/doitpoms/tlplib/dislocations/dislocation_glide.php
Anisotropic dielectric permittivity: tetragonal-cubic phase transition in barium titanate
A thin section of barium titanate is viewed between crossed-polars, Initially, the sample is below the transition temperature, and since the domains of the anisotropic tetragonal phase exhibit birefringence, it is brightly coloured when viewed between crossed-polars. When the sample reaches the transition temperature, the isotropic cubic phase forms, which appears black. From TLP: Introduction to Anisotropy, http://www.msm.cam.ac.uk/doitpoms/tlplib/anisotropy/dielectric.php
