Generation of attosecond x-ray pulses is TV Stand with Fireplace attracting much attention within the x-ray free-electron laser (FEL) user community.We propose a novel scheme for the generation of coherent stable attosecond x-ray pulse trains in a seeded FEL, via a process of mode-locked amplification.Three modulators and two chicanes are used for

Natural Resources extraction for production of goods increases the stress on land Grooming and on the environment.Coal Mines are the primary source for energy production.This process increases the continuous deformation on land by disturbing equilibrium beneath the surface.Interferometry techniques have a capability to detect the minute deformation

Gain enhancement of a wide slot antenna over a wide frequency band using a low profile, second order bandpass frequency selective surface (FSS) as a superstrate is presented in this paper.The proposed multilayered FSS with non-resonant unit cells in each layer allows in-phase transmission of waves radiated Outdoor Wall Light from the antenna over a

DDoS attack extensively existed have been mortal threats for the software-defined networking (SDN) controllers and there is no any security mechanism which can prevent them yet.Combining SDN and network function virtualization (NFV),a novel preventing mechanism against DDoS attacks on SDN controller called upfront detection Wallet middlebox (UDM) w