Abstract: To achieve an omnidirectional circularly-polarized antenna mountable on metal platforms such as vehicle and aircraft is challenging work. In this paper, an omnidirectional ...

Abstract: Borehole acoustic reflection imaging uses acoustic receivers to detect geological structures but suffers from low accuracies when measuring the azimuths of anomalies. To address this problem ...

Laptops are practical because you can take them with you. However, laptops have a relatively small screen. If you work on a mobile computer, it quickly becomes annoying to constantly switch programs.