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low-frequency radio waves

ABSTRACT: Spectroscopy is a general term used within analytical chemistry and some branches of physics that

ABSTRACT: Spectroscopy is a general term used within analytical chemistry and some branches of physics that

... The electromagnetic spectrum stretches from low energy (low frequency) radio waves to high energy (high frequency) X-rays or gamma rays. Different levels of energy have different ...

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Numerical modelling of ultra low frequency waves in Earth's magnetosphere

Numerical modelling of ultra low frequency waves in Earth's magnetosphere

... magnetosphere, it is useful to use magnetic local time (MLT), which in an equatorial plane denotes the Earth-Sun line as 12 noon, and the opposite side as midnight (MLT 24). The pink shaded areas of Figure 1.1.1 ...

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Auroral radio emission and absorption of medium frequency radio waves observed in Iceland

Auroral radio emission and absorption of medium frequency radio waves observed in Iceland

... is plotted by a solid curve in Fig. 3(b). Because the tem- poral variation of broadcasting signal intensity is controlled by the ionospheric absorption effect, data analysis of this absorption phenomenon reveals a ...

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High frequency ion sound waves associated with Langmuir waves in type III radio burst source regions

High frequency ion sound waves associated with Langmuir waves in type III radio burst source regions

... the low frequency band of FES on 1 May 2001 at 17:53:53 and 18:19:29 ...III radio burst of ∼ 16:00–18:00 UT ...to low fre- quency waves such as the long wavelength ion sound ...

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Low-frequency radio study of MACS clusters at 610 and 235 MHz using the GMRT

Low-frequency radio study of MACS clusters at 610 and 235 MHz using the GMRT

... Since, radio synchrotron emission from galaxy clusters is a transient phenomena (∼ ...MHD waves in the upstream and downstream regions of shocks and can strongly amplify the upstream magnetic field present ...

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Low-frequency waves in HF heating of the ionosphere

Low-frequency waves in HF heating of the ionosphere

... (HF) radio waves using high‐power transmitters and an array of ground‐ and space‐based ...of low‐ f requency electromagnetic radiation [Papadopoulos et ...plasma waves and turbulence [Guzdar ...

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Analysis of RFID Based Positioning Technique Using Received Signal Strength and Directional Antenna

Analysis of RFID Based Positioning Technique Using Received Signal Strength and Directional Antenna

... antenna. Radio Frequency Identification (RFID) system permits automatic identification of objects with RFID tags using radio waves which have been widely used in mobile robot navigation, ...

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Dirty Electricity and Electromagnetic Radiations by Lightning Devices

Dirty Electricity and Electromagnetic Radiations by Lightning Devices

... electromagnetic waves which is raise its frequency from Extremely Low Frequency (ELF) or Very Low Frequency(VLF), through Radio Frequency (RF), to Infrared light, ...

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A low cost entry door using database based 
		on RFID and microcontroller

A low cost entry door using database based on RFID and microcontroller

... implementing radio frequency identification ...implementing radio waves on the certain frequency combined with an Arduino microcontroller as the core to process input and output (I/O) ...

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Low frequency waves in HF heating of the mid-latitude ionosphere

Low frequency waves in HF heating of the mid-latitude ionosphere

... the waves detected on the ground showed peaks at these frequencies ...ULF waves were interpreted as resulting from nonlinear coupling between the two transmitted ...excited waves [Utlaut et ...

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Lifi Technology Aditya Manral, Ranjan Kumar Singh

Lifi Technology Aditya Manral, Ranjan Kumar Singh

... on and off very quickly, which gives nice opportunities for transmitting data. Hence all that is required is some LEDs and a controller that code data into those LEDs. All one has to do is to vary the rate at which the ...

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Low-frequency Radio Absorption in Tycho's Supernova Remnant

Low-frequency Radio Absorption in Tycho's Supernova Remnant

... Our analysis relies on the localized deviation from power- law behavior at low frequencies due to free – free absorption from ionized material along the line of sight ( we discuss the method in detail in Section ...

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Designing Wireless Charger Circuit for  Hearing Aids Using Radio Frequency Waves

Designing Wireless Charger Circuit for Hearing Aids Using Radio Frequency Waves

... Keywords Radio Frequency Waves RF, Rectenna, Spiral Antenna, Charge Circuit, Impedance Adjustment or Impedance Matching, Array Antenna, Regulator Circuit, Hearing-Aid Circuit.. How to ci[r] ...

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THE LOW-FREQUENCY SCATTERING OF KELVIN-WAVES BY STEPPED TOPOGRAPHY

THE LOW-FREQUENCY SCATTERING OF KELVIN-WAVES BY STEPPED TOPOGRAPHY

... Short waves carrying energy outwards are present above downward slopes for completely inviscid flow over continuous topography and energy is conserved even in the low-frequency l[r] ...

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LOW-FREQUENCY SCATTERING OF KELVIN WAVES BY CONTINUOUS TOPOGRAPHY

LOW-FREQUENCY SCATTERING OF KELVIN WAVES BY CONTINUOUS TOPOGRAPHY

... The surface elevation at the ridge edge x = W+ in the geostrophic region outside the wall layer is 9 = g(W+) and hence corresponds to a mass flux h, 2 carried inwards over t[r] ...

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IJCSMC, Vol. 5, Issue. 5, May 2016, pg.808 – 813 The Review Paper on Securing Wireless Network from External Threats

IJCSMC, Vol. 5, Issue. 5, May 2016, pg.808 – 813 The Review Paper on Securing Wireless Network from External Threats

... 5. Communications satellites :– Satellites communicate via microwave radio waves, which are not deflected by Earth's atmosphere. satellites are stationed in space, typically in geosynchronous orbit 35,400 ...

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The Effect of Neurofeedback on Brain Waves in Children With Autism Spectrum Disorders

The Effect of Neurofeedback on Brain Waves in Children With Autism Spectrum Disorders

... ciated with EEG abnormalities [8]. It occur with greater than expected frequency in ASD [9]. Basic researches have shown abnormally high amount of theta and beta activity at central and parital lobes that are ...

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Model Simulation of Artificial Heating of the Daytime High Latitude F Region Ionosphere by Powerful High Frequency Radio Waves

Model Simulation of Artificial Heating of the Daytime High Latitude F Region Ionosphere by Powerful High Frequency Radio Waves

... To calculate three-dimensional distributions of ionospheric parameters in the high-latitude F layer, modified by the action of the ionospheric high-frequency heating facility, situated at the point with geographic ...

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Wide band RH Circular Polarized Antenna;
Design and Analysis

Wide band RH Circular Polarized Antenna; Design and Analysis

... reflects waves to ...of radio waves, left handed helix radiates left circularly polarized radio waves, right handed helix radiates right circularly polarized radio ...

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SECURING RFID SYSTEM USING AES ALGORITHM

SECURING RFID SYSTEM USING AES ALGORITHM

... The architecture of a security-enhanced RFID tag is sketched in figure 2. It consists of four parts: analog frontend, digital controller, EEPROM, and AES module. The analog frontend is responsible for the power supply of ...

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