نتایج جستجو برای: radiofrequency interference
تعداد نتایج: 114522 فیلتر نتایج به سال:
Mobile phones are two-way radios that emit electromagnetic radiation in microwave range. As the number of mobile phone users has reached 6 billion, the bioeffects of exposure to mobile phone radiation and mobile phone electromagnetic interference with electronic equipment have received more attention, globally. As self-monitoring of blood glucose can be a beneficial part of diabetes control, ho...
Voltage-based device tracking in a 1.5 Tesla MRI during imaging: initial validation in swine models.
PURPOSE Voltage-based device-tracking (VDT) systems are commonly used for tracking invasive devices in electrophysiological cardiac-arrhythmia therapy. During electrophysiological procedures, electro-anatomic mapping workstations provide guidance by integrating VDT location and intracardiac electrocardiogram information with X-ray, computerized tomography, ultrasound, and MR images. MR assists ...
Background: Pre-exposure to radiofrequency radiations of mobile phones would significantly increase the survival rate of exposed animals compared to those exposed to a lethal dose of gamma radiation alone. Stimulation of the immune system is believed to be a key mechanism for the induction of this phenomenon, the so-called “adaptive response.†The immune system protects organisms against in...
In this paper a radiofrequency identification system according to standard ISO/IEC 14443 type-B is evaluated in presence of transient noise. This real time communication system working at 13.56 MHz is interfered in a controlled environment by different transient bursts varying their level, frequency and duration. The transient burst interference is applied in an AC main wire close to the system...
Abstract In a series of previous papers, the detection arcing on GPS, Van Allen Probe, and GEO satellites with Arecibo Observatory Wm. E. Gordon 305 m radiotelescope has been reported elaborated. this paper, characteristics radiofrequency spectra two true are as they were measured Mock spectrometer every 9.6 microseconds, contrasted impulsive RFI (RadioFrequency Interference) events. It is show...
There is at present a worldwide effort to develop next-generation wireless communication systems. It is envisioned that many of the future wireless systems will incorporate considerable signal-processing intelligence in order to provide advanced services such as multimedia transmission. In general, wireless channels can be very hostile media through which to communicate, due to substantial phys...
Interference of wildlife into habitat without prior knowledge is known to be destructive for both human beings and animals. Human interactions with are defining experience existence.These can positive ornegative.The main aim the proposed system detect wild This uses long-range IR sensors ESP8266 Wi-Fi module movement animal send signal controller. transmitted GSM, which an alert farmers forest ...
Radiofrequency (rf) plasmas exhibit field penetration well beyond the classical skin depth. Two physical explanations are proposed. First, by tracing orbits of electrons through many rf cycles in a cylindrical system, it is shown that numerous ionizing electrons can reach the interior. Second, current-carrying electrons can form a long-lived torus that drifts toward the axis, causing frequently...
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