Search the World's Largest Database of Information Science & Technology Terms & Definitions
InfInfoScipedia LogoScipedia
A Free Service of IGI Global Publishing House
Below please find a list of definitions for the term that
you selected from multiple scholarly research resources.

What is Frequency

Chapter 11
Handbook of Research on Smart Power System Operation and Control
In statistics the frequency (or absolute frequency) of an event is the number of times the event occurred in an experiment or study. These frequencies are often graphically represented in histograms.
Published in Chapter:
Power Quality of Electrical Power Systems
Feras Youssef Mahfoud (Universitatea Politehnica Bucureşti, Romania), Basarab Dan Guzun (Universitatea Politehnica Bucureşti, Romania), George Cristian Lazaroiu (University Politehnica of Bucharest, Romania), and H. H. Alhelou (Tishreen University, Syria)
Copyright: © 2019 |Pages: 24
DOI: 10.4018/978-1-5225-8030-0.ch011
Abstract
Power quality problems can cause processes and equipment to malfunction or shut down. And the consequences can range from excessive energy costs to complete work stoppage. Obviously, power quality is critical. There are many ways in which a power feed can be poor quality, and so no single figure can completely quantify the quality of a power feed. In this chapter, the authors present all definitions, classifications, and problems related to power quality. Finally, they do a comparison between the practical measurements and standards related to power quality.
Full Text Chapter Download: US $37.50 Add to Cart
More Results
Chapter 8
Mega-Constellations: Technical Aspects
Number cycle repetitions that occur within one second.
Published in Chapter: Mega-Constellations: Technical Aspects; From: Promoting Productive Cooperation Between Space Lawyers and Engineers
Full Text Chapter Download: US $37.50 Add to Cart
Chapter 3
Simulation Tool for Cable Design
The number of waves that have passed a fixed length at a given time; the cable should provide a certain frequency range to the broadcast signal; therefore cables are tested at the required frequencies.
Published in Chapter: Simulation Tool for Cable Design; From: Handbook of Research on Advancements in Manufacturing, Materials, and Mechanical Engineering
Full Text Chapter Download: US $37.50 Add to Cart
Chapter 29
Analyzing Process Data from Problem-Solving Items with N-Grams: Insights from a Computer-Based Large-Scale Assessment
Term (action) frequency captures how salient an action is within a sequence. Sequence frequency refers to the number of sequences that contain a certain action.
Published in Chapter: Analyzing Process Data from Problem-Solving Items with N-Grams: Insights from a Computer-Based Large-Scale Assessment; From: Handbook of Research on Technology Tools for Real-World Skill Development
Full Text Chapter Download: US $37.50 Add to Cart
Chapter 42
Radio Frequency Identification (RFID) Technology
Frequency is the number of repetitions of a complete wave within 1 second; 1Hz equals one complete waveform in 1 second, and 1KHz equals 1,000 waves in a second.
Published in Chapter: Radio Frequency Identification (RFID) Technology; From: Handbook of Research on Public Information Technology
Full Text Chapter Download: US $37.50 Add to Cart
Chapter 11
Assortment Size and PL Penetration in Grocery Retailers' Portfolios during Economic Crisis: Empirical Evidence from Spain
Number of occasions that a consumer purchases a particular product during a period of time. Average annual purchases of a product.
Published in Chapter: Assortment Size and PL Penetration in Grocery Retailers' Portfolios during Economic Crisis: Empirical Evidence from Spain; From: Handbook of Research on Strategic Retailing of Private Label Products in a Recovering Economy
Full Text Chapter Download: US $37.50 Add to Cart
Chapter 136
Analysis of Frequency Domain Data Generated by a Quartz Crystal
The number of times that something repeats in a unit of time. Electrical frequency is the rate of oscillation between two levels of voltage. This is expressed as number of cycles per second or Hz.
Published in Chapter: Analysis of Frequency Domain Data Generated by a Quartz Crystal; From: Encyclopedia of Data Science and Machine Learning
Full Text Chapter Download: US $37.50 Add to Cart
Chapter 20
How to Promote Teaching Centers by Using Online Advertising: A Case Study
Full Text Chapter Download: US $37.50 Add to Cart
Chapter 1
Deep Learning Based Sentiment Analysis for Phishing SMS Detection
Occurrence of no of times word appear during the text processing.
Published in Chapter: Deep Learning Based Sentiment Analysis for Phishing SMS Detection; From: New Opportunities for Sentiment Analysis and Information Processing
Full Text Chapter Download: US $37.50 Add to Cart
Chapter 2
Spatio-Temporal Hot Spot Analysis of Epidemic Diseases Using Geographic Information System for Improved Healthcare
Full Text Chapter Download: US $37.50 Add to Cart
Chapter 102
The Transport-Level Requirements of the Internet-Based Streaming
Frequencies constitute the rate at which electromagnetic waves, such as light, television, and radio waves, oscillate. Electromagnetic waves are comprised of a continuum of emanations, including light waves which are visible, and invisible frequencies such as television and radio waves which are lower frequency than light, and x-rays and gamma rays which are higher frequency. Frequencies are measured in Hertz (Hz), kilohertz (kHz), megahertz (MHz), or gigahertz (GHz), and represent the rate of oscillation of the waves.
Published in Chapter: The Transport-Level Requirements of the Internet-Based Streaming; From: Encyclopedia of Information Communication Technology
Full Text Chapter Download: US $37.50 Add to Cart
Chapter 1
Design of Experiments in an Electrochemical Process
It is the magnitude that measures the number of repetitions per unit of time of any phenomenon or periodic event.
Published in Chapter: Design of Experiments in an Electrochemical Process; From: Design of Experiments for Chemical, Pharmaceutical, Food, and Industrial Applications
Full Text Chapter Download: US $37.50 Add to Cart
Chapter 9
The Stakes of Social Media: Analyzing User Sentiments
Number of oscillations per second expressed in Hertz (Hz). For the voice, the frequency corresponds to the number of opening and closing phases per second of the vocal folds.
Published in Chapter: The Stakes of Social Media: Analyzing User Sentiments; From: Data Mining Approaches for Big Data and Sentiment Analysis in Social Media
Full Text Chapter Download: US $37.50 Add to Cart
Chapter 23
Applications of Reinforcement Learning and Bayesian Networks Algorithms to the Load-Frequency Control Problem
Is the number of occurrences of a repeating event per unit time. For counts per a time interval, the unit of frequency is the hertz (Hz), 1 Hz means that an event repeats once per second.
Published in Chapter: Applications of Reinforcement Learning and Bayesian Networks Algorithms to the Load-Frequency Control Problem; From: Handbook of Research on Novel Soft Computing Intelligent Algorithms: Theory and Practical Applications
Full Text Chapter Download: US $37.50 Add to Cart
Chapter 150
RFID Tagging of Pharmaceuticals
The number of repetitions of a complete wave within one second. 1Hz equals one complete waveform in one second. 1KHz equals 1,000 waves in a second. RFID tags use low, high, ultra-high and microwave frequencies. Each frequency has advantages and disadvantages that make them more suitable for some applications than for others.
Published in Chapter: RFID Tagging of Pharmaceuticals; From: Encyclopedia of Healthcare Information Systems
Full Text Chapter Download: US $37.50 Add to Cart
eContent Pro Discount Banner
InfoSci OnDemandECP Editorial ServicesAGOSR