The high frequency ambient noise in warm shallow waters is dominated by snapping shrimp. The loud snapping noises they produce are impulsive and broadband. As the noise propagates through the water, it interacts with the seabed, sea surface, and submerged objects. An array of acoustic pressure sensors can produce images of the submerged objects using this noise as the source of acoustic "illumi...

the linguistic is studying the language different levels, the language is main topic  that the linguistic sisstu dying it. the linguistics has several branches,the stylistics is one of its branches that survey literary works. and stylistic phenomenon is one of the important phenomen as at linguistic studies and it study poetic language because it’s different from the common language. since the ...

The elevational distributions of bacterial communities in natural mountain forests, especially along large gradients, have been studied for many years. However, the distributional patterns that underlie variations soil small-scale gradients urban ecosystems are not yet well understood. Using Illumina MiSeq DNA sequencing, we surveyed at three elevations on Zijin Mountain Nanjing City: hilltop (...