In this module we describe the random demodulator and how it can be used in the application of the theory of compressive sensing to the problem of acquiring a high-bandwidth continuous-time signal.
LC Calc (TM) Online. A handy calculator for HPLC computations.
This site contains several on-line calculators for use in liquid chromatography. These include pressure unit conversion, buffer pH, and scale-up factors. Some links may be broken.
Simple Machines and Modern Day Engineering Analogies
Students apply the mechanical advantages and problem-solving capabilities of six types of simple machines (wedge, wheel and axle, lever, inclined plane, screw, pulley) as they discuss modern structures in the spirit of the engineers and builders of the great pyramids. While learning the steps of the engineering design process, students practice teamwork, creativity and problem solving.
Mix It Up
This lesson plan introduces the properties of mixtures and solutions. A class demonstration gives the students the opportunity to compare and contrast the physical characteristics of a few simple mixtures and solutions. Students discuss the separation of mixtures and solutions back into their original components as well as different engineering applications of mixtures and solutions.
7.5.1 Evaluate information from different sources Be critically aware of the reliability and quality of information from different sources, taking into account factors such as commercial, political, academic or personal interests that may influence selection, content and presentation. How will you judge the quality of the information you find? You may need to question the validity of statistical information and the way data have been chosen. The size of a survey sample, for example, may be insufficient to support claims of general tren
Be critically aware of the reliability and quality of information from different sources, taking into account factors such as commercial, political, academic or personal interests that may influence selection, content and presentation. How will you judge the quality of the information you find?
You may need to question the validity of statistical information and the way data have been chosen. The size of a survey sample, for example, may be insufficient to support claims of general tren
Verkeersborden : Domino Via deze domino leren leerlingen de betekenis van een aantal verkeersborden.
Via deze domino leren leerlingen de betekenis van een aantal verkeersborden.
ScienceNow: Disaster in Japan
This ScienceNow event, held on March 29, 2011, presented five expert perspectives on the science behind the earthquake, tsunami and nuclear crises that have engulfed Japan. Event Panelists Susan Beck, Professor, Geosciences, University of Arizona Beck provided an overview of the earthquakes and tsunamis that are at the core of Japan's catastrophe. Her research involves using broadband seismology to understand mountain belts, earthquakes and faulting. Current studies include earthquakes and Ear
Michael Adams on The Boomer Impact
Environics co-founder, leading pollster, and author, Michael Adams, delivers a lecture on the Boomer Impact, drawing on the insights and research in his latest book Stayin' Alive: How Canadian Boomers Will Work, Play and Find Meaning in the Second Half of Their Adult Lives. This lecture was produced in collaboration with the Literary Review of Canada.
Analytical Electrochemistry: Potentiometry
This courseware module is structured for either a lecture presentation or self-study tutorial on analytical potentiometry. The level of presentation spans upper high school to college students. Topics include historical background, theory/principles, instrumentation, pH electrodes, experimental examples, and troubleshooting tips.
Synthesis of a Sonogel-Carbon Modified Sensor Electrode with Titanium Oxide (TiO2) to Detect Catecho
This experiment demonstrates cyclic voltammetry, surface modification, selectivity, and bioanalysis in assaying catechols in the presence of ascorbic acid. Pre- or post-lab questions are included, along with sample student data and instructor\'s notes.
Separation Science Animations
This site from TRSL is the main site that links to many animations related to how chromatography systems work. Most of the animations are quite good and would be helpful to students when trying to visualize what occurs in an instrument during an separation (e.g. injection, detection, etc.).
This video, distributed on YouTube by the Royal Society of Chemistry is on the basic principles of HPLC. This video is a short primer (~5 min) which introduces the basic technique and instrumentation. The theory of HPLC is described at a very basic level. Separation theory is presented in a qualitiative fashion, and both the mechanics and applications of HPLC were generally described. The ultimate strength of this video is the general nature of the content that makes it appealing to a wide aud
Experiments in Electroanalytical Chemistry
This website offers educators a set of eight classical electroanalytical experiments suitable for use in a quantitative analysis, instrumental analysis, or electrochemistry course. The materials should be useful for advanced undergraduates and beginning graduate students. Experiments include coulometric, conductometric, and potentiometric titrations, stripping analysis, flow injection analysis, and polarography. It is important to note that several of the experiments use mercury or mercury co
Encyclopedia of Analytical Instrumentation
Site contains a comprehensive introduction to a large number of analytical instruments, their components and techniques. Example topics: basic concepts/methods, data acquisition and electronics, data handling, electrochemistry, imaging, material and surface analysis, sensors, spectroscopy, etc.
Micro- and Nano Technology, 1st Int'l Symp 2004
Technologies developed at Oak Ridge National Laboratory include: 1) use of nanoprobes based on plasmon-resonance (which is defined) to enhance surface Raman scattering and fluorescence; 2) an optical neurosensor based on a 40 nm fiber optical tip; and 3) a multifunctional biochip capable of DNA and other protein-based bioassays. The article is written in PDF format with several illustrative graphics. Although insufficient in details to duplicate experimentally, the article does provide a nice ov
Overview of Scanning Probe Microscopy Techniques
This manufacturer\'s site offers a brief, readable, and well-illustrated introduction to several important methods in scanning probe microscopy (SPM), including STM, AFM, and NSOM. \"Education links\" include 3-d animations from surface scans utilizing these techniques. An excellent \"Suggested Reading\" section contains links to on-line texts and references to books covering SPM and other topics in nanoscience.