The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose expression in terms of SI base units is s−1, meaning that one hertz is the reciprocal of one second. It is named after Heinrich Rudolf Hertz (1857–1894), the first person to provide conclusive proof of the existence of electromagnetic waves. Hertz are commonly expressed in multiples: kilohertz (103 Hz, kHz), megahertz (106 Hz, MHz), gigahertz (109 Hz, GHz), terahertz (1012 Hz, THz). Some of the unit's most common uses are in the description of sine waves and musical tones, particularly those used in radio- and audio-related applications. It is also used to describe the clock speeds at which computers and other electronics are driven. The units are sometimes also used as a representation of the energy of a photon, via the Planck relation E = hν, where E is the photon's energy, ν is its frequency, and the proportionality constant h is the Planck constant. (Wikipedia).
Chem 125. Advanced Organic Chemistry. 27. Determining Stereochemistry and Regiochemistry by NMR.
UCI Chem 125 Advanced Organic Chemistry (Spring 2016) Chem 125. Advanced Organic Chemistry. 27. Determining Stereochemistry and Regiochemistry by NMR. View the complete course: http://ocw.uci.edu/courses/chem_125_advanced_organic_chemistry.html Instructor: James S. Nowick, Ph.D. L
From playlist Chem125: Advanced Organic Chemistry
Chem 203. Lecture 13: Coupling Analysis in First Order and Near First Order Spin Systems
Full Chem 203 Playlist: https://www.youtube.com/playlist?list=PLqOZ6FD_RQ7nUiPCa47zSrMWArKAdwfcD UCI Chem 203 Organic Spectroscopy (Fall 2020) Lecture 13: Coupling Analysis in First Order and Near First Order Spin Systems Instructor: James S. Nowick, Ph.D. License: Creative Commons BY-NC-
From playlist Chemistry 203, Organic Spectroscopy (2020)
Chem 203. Organic Spectroscopy. Lecture 13. Coupling Analysis in Systems (continued)
UCI Chem 203 Organic Spectroscopy (Fall 2011) Lec 13. Organic Spectroscopy -- Coupling Analysis in First-Order and Near-First-Order Systems -- Part 2 View the complete course: http://ocw.uci.edu/courses/chem_203_organic_spectroscopy.html Instructor: James Nowick, Ph.D. License: Creative C
From playlist Chem 203: Organic Spectroscopy
Chem 203. Organic Spectroscopy. Lecture 15. Coupling Involving Other Nuclei
UCI Chem 203 Organic Spectroscopy (Fall 2011) Lec 15. Organic Spectroscopy -- Coupling Involving Other Nuclei View the complete course: http://ocw.uci.edu/courses/chem_203_organic_spectroscopy.html Instructor: James Nowick, Ph.D. License: Creative Commons BY-NC-SA Terms of Use: http://ocw
From playlist Chem 203: Organic Spectroscopy
EEVblog #528 - Opamp Input Noise Voltage Tutorial
Dave explains one of the most confusing parameters in an opamp datasheet, Input Noise Voltage Density, that mysterious nV/RootHz figure. Along with different types of opamp noise, corner noise frequency, and how to calculate output noise spectral density. And how to use a Dynamic Signal An
From playlist Opamps - Tutorials & Practicals
Chem 203. Organic Spectroscopy. Lecture 12. Coupling Analysis in Systems
UCI Chem 203 Organic Spectroscopy (Fall 2011) Lec 12. Organic Spectroscopy -- Coupling Analysis in First-Order and Near-First Order Systems. View the complete course: http://ocw.uci.edu/courses/chem_203_organic_spectroscopy.html Instructor: James Nowick, Ph.D. License: Creative Commons BY
From playlist Chem 203: Organic Spectroscopy
Essentials of Neuroscience with MATLAB: Module 2-5 (EEG)
In this module, you will work with human EEG data recorded during a steady-state visual evoked potential study (SSVEP, aka flicker). You will learn about spectral analysis, alpha activity, and topographical mapping. The MATLAB code introduces functions, sorting, and correlation analysis.
From playlist Essentials of neuroscience with MATLAB
Neuroscience source separation 1b: Spectral separation in MATLAB
This is part one of a three-part lecture series I taught in a masters-level neuroscience course in fall of 2020 at the Donders Institute (the Netherlands). The lectures were all online in order to minimize the spread of the coronavirus. That's good for you, because now you can watch the en
From playlist Neuroscience source separation (3-part lecture series)
Chem 203. Lecture 15: Coupling Involving Other Nuclei
Full Chem 203 Playlist: https://www.youtube.com/playlist?list=PLqOZ6FD_RQ7nUiPCa47zSrMWArKAdwfcD UCI Chem 203 Organic Spectroscopy (Fall 2020) Lecture 15: Coupling Involving Other Nuclei Instructor: James S. Nowick, Ph.D. License: Creative Commons BY-NC-SA Terms of Use: http://open.uci.ed
From playlist Chemistry 203, Organic Spectroscopy (2020)
Chem 203. Organic Spectroscopy. Lecture 14. Spin-Spin Coupling
UCI Chem 203 Organic Spectroscopy (Fall 2011) Lec 14. Organic Spectroscopy --Spin-Spin Coupling in Stereochemistry and Structure Determination. View the complete course: http://ocw.uci.edu/courses/chem_203_organic_spectroscopy.html Instructor: James Nowick, Ph.D. License: Creative Commons
From playlist Chem 203: Organic Spectroscopy