The early diversification of tetrapodes (Reisz, 1997) also falls in this period, and one may argue that early rock-dwelling lichen communities might have been a potential food source for some of these animals. However, the mostly crustose nature (low biomass) and generally slow growth of rock...
Broadband piston-shaped transducers of the radius-to-thickness conversion type have been developed with FEM support. They allow flawless signal transmission even for gases with losses of up to 23 dB compared to air. Error margins of ±1.5% (maximum flow) to ±3% (minimum flow) are met ...
conversion/kən’və:ʃən/n.转变,转化;改变 convert/kən’və:t,‘kɔnvə:t/vt.使转变;使改变convey/kən’vei/vt.传送;运送;传播 convince/kən’vins/vt.使确信,使信服cook/kuk/vt.烹调,煮vt.烧菜 cool/ku:l/a.凉的,冷静的cooperate/kəu’ɔpəreit/vi.合作,协...
Broadband piston-shaped transducers of the radius-to-thickness conversion type have been developed with FEM support. They allow flawless signal transmission even for gases with losses of up to 23 dB compared to air. Error margins of ±1.5% (maximum flow) to ±3% (minimum flow) are met ...