Products related to Frequency:
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Fashion and Environmental Sustainability : Entrepreneurship, Innovation and Technology
The wide range of topics that the book covers are organised into sections reflecting a cradle to grave view of how entrepreneurial, innovative, and tech-savvy approaches can advance environmental sustainability in the fashion sector.These sections include: sustainable materials; innovation in design, range planning and product development; sustainable innovations in fashion supply chains; sustainable innovations in fashion retail and marketing; sustainable alternatives for end-of-life and circular economy initiatives; and more sustainable alternative fashion business models.
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Health and Low-Frequency Electromagnetic Fields
Recent articles in the press have explored a possible link between cancer and such familiar sources of electromagnetic fields as power-distribution lines or electronic appliances.In this book a distinguished physicist evaluates the properties of low-frequency electromagnetic fields and their interactions with the human body and concludes that the health risks from these interactions have been vastly overstated. William Ralph Bennett, Jr., reviews the epidemiological evidence for a link between low-frequency electromagnetic fields and cancer.He then reviews the basic properties of these fields, outlining the simplest methods for calculating and measuring them and illustrating his discussion with original data on the electromagnetic fields produced by power lines, electrified railroads, common household appliances, video display terminals, television sets, and airport metal detectors.He considers the specific ways by which electric and magnetic fields couple to the body; compares these fields with others of much greater magnitude that must exist inside the body because of thermodynamic processes; and analyzes several resonance mechanisms that have been proposed to explain unusual sensitivity of biological tissue to low-frequency oscillating fields.A glossary and numerous tables and figures accompany the text. The book is based on a study by the author for the U.S.Government's Committee on Interagency Radiation Research and Policy Coordination that was coordinated by Oak Ridge Associated Universities.
Price: 35.00 £ | Shipping*: 0.00 £ -
New Technology skin rejuvenation import and export Intermediate frequency current therapy high frequency beauty machine
Features: Independent functions: nutrition/export, blackhead removal and spraying. Independent ports for different functions, simple operation. Deep importing skin needed essence to accelerate penetration and absorption. Can thoroughly remove blackhead, pimple and clean dirt, grease in the pore. Spraying bottle can spray the lotion, anti inflammatory water or contracting water in the way of mist, which is more accurate, more hygienic. Suitable for professional use, such as beauty parlor, plastic hospital and SPA. Instruction: 1. Vacuum, Spray Connect small suction glass tube to the suction / spray hose, put the hose to the suction port of machine, press the small hole on the small glass tube, then machine is ready for suction operation. Connect spray bottles to the suction / spray hose, put the hose to the spray port of machine, press the small hole on then the machine is ready for spray like mist. 2. Galvanic Assembly the accessories and connect black plug of Cathode Stick, and put the red plug the red plug of Bead or Scroll Bar, users use the Cathode Stick, while controller hold the Bead or Scroll Bar. Turn the power switch ON, ready for operation. Press the switch for Galvanic. Adjust for the energy of Galvanic, the energy lamp of the Galvanic will change at the same. 3. High Frequency Insert the Ozone electrode into the handle and keep well. Connect the plug to the power outlet then turn on the machine. Turn the button of energy lever to choose appropriate level according to skin conditions and type then begin to operate. After over the operation, turn the button of energy lever to O mark and turn off power, pull out the electrode and clean well and dry storage. 4. After over the button of energy lever to choose appropriate level to O mark and turn off power, pull out the electrode and clean well and dry storage. Specification: Material: ABS + Electronic Components Voltage: 110V(US), 220V(EU), 220V/240V(UK) Optional Plugs: 01#US Plug, 02#EU Plug, 03#UK Plug Color: White Main Machine Size: Approx. 49.5 x 36.5 x 17.5cm / 19.5 x 14.4 x 6.9inch Package Weight: Approx. 5900g Type: Beauty Machine Function: 1. Vacuum 2. Spray 3. Galvanic 4. High Frequency Package List: 1 x Main Machine 1 x Red and Black Tube 1 x Electrotherapy Tube 1 x Electrotherapy Stick 1 x The Ducting Leads 1 x Glass Straw 1 x Adapter 1 x User Manual
Price: 187.99 € | Shipping*: 0.0 € -
Frequency
Be careful what you listen to. Five years ago, Fiona was just a kid. But everything changed the night the Pit Viper came to town.Sure, he rid the quiet, idyllic suburb of Hamm of its darkest problems.But Fiona witnessed something much, much worse from Hamm’s adults when they drove him away. And now, the Pit Viper is back. Fiona’s not just a kid anymore. She can handle the darkness she sees in the Pit Viper, a DJ whose wicked tattoos, quiet anger, and hypnotic music seem to speak to every teen in town… except her.She can handle watching as each of her friends seems to be overcome by the music.She can even handle her unnerving suspicion that the DJ is hell-bent on revenge. But she’s not sure she can handle falling in love with him.
Price: 13.99 £ | Shipping*: 3.99 £
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What is the difference between natural frequency, excitation frequency, and resonance frequency?
Natural frequency is the frequency at which a system naturally vibrates when disturbed from its equilibrium position. Excitation frequency is the frequency at which an external force is applied to a system. Resonance frequency is the frequency at which the amplitude of the system's response is maximized when subjected to an external force at or near its natural frequency. In summary, natural frequency is inherent to the system, excitation frequency is the frequency of the external force, and resonance frequency is the frequency at which the system's response is maximized.
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What is the difference between angular frequency and frequency?
Frequency is the number of complete cycles of a periodic waveform that occur in a unit of time, usually measured in hertz (Hz). Angular frequency, on the other hand, is the rate of change of the phase of a sinusoidal waveform, measured in radians per second. Angular frequency is related to frequency by the equation ω = 2πf, where ω is the angular frequency and f is the frequency in hertz.
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Is the radio frequency 149050 a walkie-talkie frequency?
No, the radio frequency 149050 is not typically used for walkie-talkies. Walkie-talkies typically operate on frequencies within the VHF (Very High Frequency) or UHF (Ultra High Frequency) bands, such as 462-467 MHz in the UHF band. The frequency 149050 is within the HF (High Frequency) band, which is commonly used for long-distance communication, such as amateur radio, maritime, and aviation communication. Therefore, it is unlikely that 149050 would be used for walkie-talkies.
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What is the difference between beat frequency and envelope frequency?
Beat frequency refers to the frequency of the fluctuation in amplitude that occurs when two waves of slightly different frequencies interfere with each other. This fluctuation creates a pulsating sound or sensation. On the other hand, envelope frequency refers to the frequency of the overall shape or envelope of the combined wave, which is determined by the slower of the two interfering waves. In other words, beat frequency is the frequency of the pulsating fluctuations, while envelope frequency is the frequency of the overall shape of the combined wave.
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Evolution of the Global Fitness Industry : Strategy, Sustainability and Innovation
The pandemic has taught us all how important it can be to look after our physical and mental health, and how worthwhile it is to invest in taking care of ourselves.This short book illustrates the main trends that are modifying the fitness industry worldwide and highlights contemporary relevance to strategic change.It outlines what is currently happening within the promising fitness market and analyses the major emerging trends and the scientific data, referring to startups that could become very interesting market players in the years to come.Sustainability and technology will be the subject of in-depth analysis, as they represent the main drivers that will guide the sector in the future.The book also considers the most important aspect of sustainability related to the fitness industry and wellness more generally: the Silver Economy.The analysis is supported by an extensive database involving the 100 leading companies in the sector worldwide.The novelty of this research is to provide a document analysing the typical characteristics of this market, consumption dynamics, consumer triggers, and underlying the socio-economic scenario.The treatment of key themes such as fitness-tech startups, sport strategic management and above all innovation and sustainability make the book unique and appealing to researchers, academics, students, and practitioners.
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Securing the Future through Sustainability, Health, Education, and Technology
Organized on 13th–15th December 2023, The 14th Annual International Research Conference of the Symbiosis Institute of Management Studies, (SIMSARC 2023) is based on the theme “Securing the Future through Sustainability, Health, Education and Technology”.It focuses on the need for a holistic approach to address the present challenges of the world while envisioning a resilient and prosperous tomorrow.It discusses the interconnections between Sustainability, Health, Education and Technology in fostering long-term well-being and addresses challenges and future opportunities.
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SK-C100 Frequency Reader Frequency Counter Digital Frequency Checker Remote Master
very nice pirce with quality,ship out first time.syi
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Radio Frequency Identification (RFID) Technology and Application in Fashion and Textile Supply Chain
Radio Frequency Identification (RFID) Technology and Application in Fashion and Textile Supply Chain highlights the technology of Radio Frequency Identification (RFID) and its applications in fashion and textile manufacturing and supply chain management.It discusses the brief history, technology, and working of RFID including the types of RFID systems.It compares differences, advantages, and disadvantages of RFID and barcode technologies.It also covers application of RFID technology in textile and fashion manufacturing, supply chain, and retail, and RFID-based process control in textile and fashion manufacturing.It covers various applications of RFID starting from fibre manufacturing through yarn and fabric manufacturing; fabric chemical processing; garment manufacturing and quality control; and retail management.It offers case studies of RFID adoption by famous fashion brands detailing the competitive advantages and discusses various challenges faced and future directions of RFID technology.
Price: 135.00 £ | Shipping*: 0.00 £
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What is the difference between relative frequency and absolute frequency?
Relative frequency is the proportion of the total number of occurrences of a particular value to the total number of occurrences in the data set. It is expressed as a percentage or a decimal. Absolute frequency, on the other hand, is the actual number of occurrences of a particular value in the data set. It represents the raw count of how many times a value appears in the data. While relative frequency gives us a sense of the proportion or percentage of occurrences, absolute frequency gives us the actual count of occurrences.
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Have the channels disappeared on a frequency during Vodafone's frequency change?
Yes, during Vodafone's frequency change, some channels may have disappeared on a specific frequency. This can happen if the channels were previously broadcasted on the old frequency and have not yet been migrated to the new frequency. In such cases, viewers may need to rescan their TV or set-top box to find the channels on the new frequency. It's also possible that the channels have been removed from the lineup altogether, so viewers should check with their service provider for the most up-to-date information.
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What is frequency, angular frequency, peak factor, amplitude, and instantaneous value?
Frequency is the number of occurrences of a repeating event per unit of time, typically measured in hertz (Hz). Angular frequency is a measure of how quickly an object moves through a circular path, and is measured in radians per second. Peak factor is the ratio of the peak value of a waveform to its RMS (root mean square) value, and is a measure of the waveform's peakiness. Amplitude is the maximum displacement or distance moved by a point on a vibrating body or wave from its central position. Instantaneous value refers to the value of a varying quantity at a particular instant in time.
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How do you measure the grid frequency with a frequency counter?
To measure the grid frequency with a frequency counter, you would first need to connect the frequency counter to the grid power source using appropriate cables. Then, set the frequency counter to the appropriate frequency range for the grid (typically 50 or 60 Hz). Once the frequency counter is properly set up, it will measure the frequency of the grid power source and display the result on its screen. You can then use this measurement to ensure that the grid frequency is within the acceptable range for your electrical equipment.
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