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Global coal exports post rare decline in 2025 on China cuts Global shipments of thermal coal - burned in power stations - have posted their first annual decline since 2020 on the back of lower ...

Circular dichroism is the difference in the absorption of left- and right-handed circularly polarized light that occurs when a molecule contains one or more chiral, light-absorbing groups. It is used ...

A central pattern generator (CPG) is a neuronal network in which interconnected excitatory and inhibitory neurons produce an oscillating, rhythmic output in the absence of sensory feedback. CPGs play ...

Abstract: This paper presents the design of a microstrip line-fed substrate-integrated waveguide (SIW) ring antenna designed to excite a sixth-order circularly polarized conical radiation pattern.

Abstract: The synthesis and optimization of the radiation pattern of a monopole circular antenna array are described. The method is fast and effective since it employs impedance and radiation pattern ...