In our society digital images are a powerful and widely used communication medium. They have an important impact on communication and IT industry. But, in this digital savvy world there is no doubt in saying “seeing is no more believing”. So detection is very important challenges for testing in forensic science. In past few years

Increased demand of multimedia system applications leads to high speed transmission speed that may be gratified by OFDM (orthogonal frequency division multiplexing). In wireless transmissions, OFDM is extremely smashing technology as it provides flexibility and high speed.One of the major drawbacks in the MIMO-OFDM is high peak-to-average power ratio (PAPR).Clipping & Filtering, Selected mapping (SLM), Partial transmit sequence (PTS) are some of the techniques which minimizes the PAPR

According to double-K criterion, the two size independent parameters can be used to describe the fracture process of concrete and can predict the different stages of crack propagation. The first parameter is termed as initial cracking toughness, KIC ini, which is directly calculated by the initial cracking load (Pini) and initialnotch length (a0) using LEFM principles. The other parameter is known as unstable fracture toughness, KIC un which can be obtained by peak load and effective crack length (ac) using LEFM principles. In the present study, totally 4 series comprising of 2 natural aggregate concrete (NAC) mixes, one having w/c of 0.50 and the other having w/c ratio of 0.45, 2 recycled aggregate concrete (RAC) mixes having w/c ratio of 0.5, and 0.45 have been investigated. As recommended by RILEM committee-TC-89, geometrically similar beam specimens for evaluation of fracture characteristics were cast. Notches of 3 to 4mm thick and notch depth/beam depth of 0.2 were cut in beam specimens using a concrete cutting machine before testing

In our society digital images are a powerful and widely used communication medium. They have an important impact on communication and IT industry. But, in this digital savvy world there is no doubt in saying “seeing is no more believing”. So detection is very important challenges for testing in forensic science. In past few years

Centrifugal pumps are a sub-class of dynamic axisymmetric work-absorbing turbo machinery. These are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. The rotational energy typically comes from an engine or electric motor. The fluid enters the pump impeller along or near the rotating axis and is accelerated by the impeller, flowing radially outward into a diffuser or volute chamber from where it exits.