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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Innovation in Energy Security and Long-Term Energy Efficiency
The sustainable development of our planet depends on the use of energy. The growing population of the world inevitably causes an increase in the demand for energy, which, on the one hand, threatens the potential for shortages of energy supply, and, on the other hand, causes the deterioration of the environment.Therefore, our task is to reduce this demand through different innovative solutions (i.e., both technological and social). Social marketing and economic policies can also play a role in affecting the behavior of households and companies, by causing behavioral change oriented to energy stewardship, and an overall switch to renewable energy resources. This book provides a platform for the exchange of a wide range of ideas, which, ultimately, would facilitate the driving of societies to long-term energy efficiency.
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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 € -
10MHz Frequency Meter DIY Kit Frequency Counter AVR Frequency with Shell Counter Cymometer Frequency
10MHz Frequency Meter DIY Kit Frequency Counter AVR Frequency with Shell Counter Cymometer Frequency
Price: 9.29 € | Shipping*: 0 €
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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 normal frequency of communication in a relationship?
The normal frequency of communication in a relationship can vary depending on the individuals involved and their preferences. However, in a healthy relationship, regular communication is important to maintain connection and understanding between partners. This could mean daily check-ins, frequent texting or calling, or regular face-to-face conversations. Ultimately, the frequency of communication should be based on the needs and comfort levels of both partners.
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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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10MHz Frequency Meter DIY Kit Frequency Counter AVR Frequency with Shell Counter Cymometer Frequency
10MHz Frequency Meter DIY Kit Frequency Counter AVR Frequency with Shell Counter Cymometer Frequency
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Smart Green World? : Making Digitalization Work for Sustainability
In this book, Steffen Lange and Tilman Santarius investigate how digitalization influences environmental and social sustainability.The information revolution is currently changing the daily lives of billions of people worldwide.At the same time, the current economic model and consumerist lifestyle needs to be radically transformed if society is to overcome the challenges humanity is facing on a finite planet.Can the much-discussed disruption potential of digitalization be harnessed for this purpose?Smart Green World? provides guiding principles for a sustainable digital society and develops numerous hands-on proposals for how digitalization can be shaped to become a driving force for social transformation.For instance, the authors explain why more digitalization is needed to realize the transition towards 100% renewable energy and show how this can be achieved without sacrificing privacy.They analyze how the information revolution can transform consumption patterns, mobility habits and industry structures – instead of fostering the consumption of unneeded stuff due to personalized commercials and the acceleration of life.The authors reveal how Artificial Intelligence and the Industrial Internet of Things pose novel environmental challenges and contribute to a polarization of income; but they also demonstrate how the internet can be restored to its status as a commons, with users taking priority and society at large reaping the benefits of technological change in a most democratic way. Providing a comprehensive and practical assessment of both social and environmental opportunities and challenges of digitalization, Smart Green World?Making Digitalization Work for Sustainability will be of great interest to all those studying the complex interrelationship of the twenty-first-century megatrends of digitalization and decarbonization.
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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.
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Bandwidth and Efficiency Enhancement in Radio Frequency Power Amplifiers for Wireless Transmitters
This book focuses on broadband power amplifier design for wireless communication.Nonlinear model embedding is described as a powerful tool for designing broadband continuous Class-J and continuous class F power amplifiers.The authors also discuss various techniques for extending bandwidth of load modulation based power amplifiers, such as Doherty power amplifier and Chireix outphasing amplifiers.The book also covers recent trends on digital as well as analog techniques to enhance bandwidth and linearity in wireless transmitters. Presents latest trends in designing broadband power amplifiers;Covers latest techniques for using nonlinear model embedding in designing power amplifiers based on waveform engineering;Describes the latest techniques for extending bandwidth of load modulation based power amplifiers such as Doherty power amplifier and Chireix outphasing amplifiers;Includes coverage of hybrid analog/digital predistortion as wideband solution for wireless transmitters;Discusses recent trends on on-chip power amplifier design with GaN /GaAs MMICs for high frequency applications.
Price: 89.99 £ | Shipping*: 0.00 £
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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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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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