Hierarchy of one and many-parameter families of random trigonometric chaotic maps and one-parameter random elliptic chaotic maps of cn type with an invariant measure have been introduced. Using the invariant measure (Sinai-Ruelle-Bowen measure), the Kolmogrov-Sinai entropy of the random chaotic maps have been calculated analytically, where the numerical simulations support the results .

Sky temperature map of the cosmic microwave background (CMB) is one of the premier probes of cosmology. To minimize instrumentally induced systematic errors, CMB anisotropy experiments measure temperature differences across the sky using paires of horn antennas with a fixed separation angle, temperature maps are recovered from temperature differences obtained in sky survey through a map-making ...

Environmental pollution has become a rising concern during the last decades. Especially in big cities with their huge traffic volume, the pollution by the generated noise has become an imminent health threat to the citizen [40]. To protect their citizens, states in the EU have agreed on a directive which forces them to curtail the threat that is noise pollution [31]. First and foremost, this gi...

conclusions according to the factory noise map, except for the control rooms with 81 dba noise, other cases of measuring stations were higher than the standard exposure of 85 dba noise. as a result, the implementation of control strategies, such as inspection and performance of control systems and insulation of the control room to prevent unnecessary exposure noise, are necessary. background st...

Robot navigation depends on accurate scene analysis by a camera using its data. This paper investigates a refinement of the inherent falsified depth maps generated from a 3D SwissRanger camera in the emission of beams of rays through a modulated infrared light channel affected by environmental noise. The SR4000 time-of-flight camera produces streams of depth maps projected as a 2.5D on an x-y p...

Due to the ever increasing level of environmental noise that the EU population is exposed to, all countries are directed to disseminate community noise level exposures to the public in accordance with EU Directive 2002/49/EC. Environmental noise maps are used for this purpose and as a means to avoid, prevent or reduce the harmful effects caused by exposure to environmental noise. There is no co...