Keywords: Transform (14)

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The DFT, FFT, and Practical Spectral Analysis
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The DFT, FFT, and Practical Spectral Analysis

This course gives an outline of the Discrete Fourier Transform and an ... (more)

This course gives an outline of the Discrete Fourier Transform and an in-depth look at the Fast Fourier Transform. Many different ways of speeding up a discrete Fourier Transform are examined and evaluated for how efficient they are. (less)

Subject:
Science and Technology
Material Type:
Full Course
Readings
Syllabi
Provider:
Rice University
Provider Set:
Connexions
Author:
Douglas L. Jones
Developing the Theory: Continental Drift
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Developing the Theory: Continental Drift

This document outlines the development of the theory of continental drift and ... (more)

This document outlines the development of the theory of continental drift and how many lines of evidence collected over several decades by various researchers were brought together to explain how the seafloor spreads and the continents move about. Links to additional information are included. (less)

Subject:
Science and Technology
Chemistry
Geoscience
Physics
Space Science
Material Type:
Reference
Provider:
ComPADRE Digital Library
UCAR Staff
Provider Set:
ComPADRE: Resources for Physics and Astronomy Education
NASA Earth and Space Science Education Collection
Food and Power in the Twentieth Century, Spring 2005
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Food and Power in the Twentieth Century, Spring 2005

In this class, food serves as both the subject and the object ... (more)

In this class, food serves as both the subject and the object of historical analysis. As a subject, food has been transformed over the last 100 years, largely as a result of ever more elaborate scientific and technological innovations. From a need to preserve surplus foods for leaner times grew an elaborate array of techniques -- drying, freezing, canning, salting, etc -- that changed not only what people ate, but how far they could/had to travel, the space in which they lived, their relations with neighbors and relatives, and most of all, their place in the economic order of things. The role of capitalism in supporting and extending food preservation and development was fundamental. As an object, food offers us a way into cultural, political, economic, and techno-scientific history. Long ignored by historians of science and technology, food offers a rich source for exploring, e.g., the creation and maintenance of mass-production techniques, industrial farming initiatives, the politics of consumption, vertical integration of business firms, globalization, changing race and gender identities, labor movements, and so forth. How is food different in these contexts, from other sorts of industrial goods? What does the trip from farm to table tell us about American culture and history? (less)

Subject:
Science and Technology
Social Sciences
Material Type:
Full Course
Homework and Assignments
Syllabi
Provider:
M.I.T.
Provider Set:
MIT OpenCourseWare
Author:
Fitzgerald, Deborah
Fourier Series: Eigenfunction Approach
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Fourier Series: Eigenfunction Approach

This module will introduce the Fourier Series and its Fourier coefficients using ... (more)

This module will introduce the Fourier Series and its Fourier coefficients using the concepts of eigenfunctions and basis. We will show several examples of how to decompose a signal and find the Fourier coefficients. (less)

Subject:
Mathematics and Statistics
Science and Technology
Material Type:
Readings
Syllabi
Provider:
Rice University
Provider Set:
Connexions
Author:
Justin Romberg
Image Denoising via the Redundant Wavelet Transform
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Image Denoising via the Redundant Wavelet Transform

This report summarizes work done as part of the Wavelet Based Image ... (more)

This report summarizes work done as part of the Wavelet Based Image Analysis PFUG under Rice University's VIGRE program. VIGRE is a program of Vertically Integrated Grants for Research and Education in the Mathematical Sciences under the direction of the National Science Foundation. A PFUG is a group of Postdocs, Faculty, Undergraduates and Graduate students formed round the study of a common problem. This module introduces the redundant discrete wavelet transform as well as two level dependent estimators that could potentially be used for image denoising, the Bishrink algorithm and the Bayesian Least Squares-Gaussian Scale Mixture algorithm. A simulation designed to evaluate the efficacies of each of these methods for the purpose of denoising astronomical image data is described, and its results are presented and discussed. This Connexions module describes work conducted as part of Rice University's VIGRE program, supported by National Science Foundation grant DMS?0739420. (less)

Subject:
Mathematics and Statistics
Material Type:
Readings
Provider:
Rice University
Provider Set:
Connexions
Author:
Colleen Kenney
Stephen Kruzick
Molecular Genetic Analysis in Yeast
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Molecular Genetic Analysis in Yeast

The four exercises presented here use basic and advanced procedures of recombinant ... (more)

The four exercises presented here use basic and advanced procedures of recombinant DNA technology to perform molecular genetic analysis in the yeast Saccharomyces cerevisiae. Their fulluse is intended for a senior-level molecular genetics (or similar) course; however, Experiments 1, 2, and 4 are appropriate for lower-level courses. It is expected that the instructor will have some familiarity with the concepts and terminology of recombinant DNA technology and with yeast genetics. (less)

Subject:
Life Science
Education
Material Type:
Activities and Labs
Instructional Material
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Daniel D. Burke (Seton Hall University;)
Ocean Oasis: Teacher's Guide
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Ocean Oasis: Teacher's Guide

This site, from the San Diego Natural History Museum, contains a group ... (more)

This site, from the San Diego Natural History Museum, contains a group of thirteen classroom activities, based on the film entitled Ocean Oasis. These science activities offer an interdisciplinary approach, involving language arts, mathematics, and history/social studies, as well as science knowledge and skills. They may be used individually, with or without viewing the movie, or as an integrated unit, the film serving to enhance the classroom learning experience. Both the activities and the film explore Baja California, Mexico, and the Gulf of California region through several themes that have global, as well as local implications. Using this region as a case study, the activities also illustrate how geographical location and circulation of the atmosphere affect climate, how life forms adapt to their diverse habitats, and how human activities affect local ecosystems. A reading list is also provided. (less)

Subject:
History, Law, Politics
Chemistry
Ecology
Forestry and Agriculture
Geoscience
Life Science
Physics
Space Science
Technology
Social Sciences
Material Type:
Activities and Labs
Case Study
Images and Illustrations
Instructional Material
Interactive
Lesson Plans
Provider:
University Corporation for Atmospheric Research
Provider Set:
DLESE Community Collection
Author:
Education Department San Diego Natural History Museum
Sempra Energy
Soames Summerhays
Walton Family Foundation
Plate Tectonics: Recycling the Seafloor
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Plate Tectonics: Recycling the Seafloor

In this activity, learners work in teams to predict and outline the ... (more)

In this activity, learners work in teams to predict and outline the location of plate boundaries using the National Oceanic and Atmospheric Administration's Acoustic Monitoring Program's underwater earthquake data. Then, learners compare their estimates to the USGS's map of the plates and discuss. (less)

Subject:
Mathematics
Engineering
Geoscience
Life Science
Technology
Social Sciences
Education
Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Provider:
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
Bridge: Online Ocean Science Education Resource Center
Lisa Ayers Lawrence
National Marine Educators Association
NOAA Sea Grant
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