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The radii of both wires are 1 mm. It can be found that the curve of the coupling coefficient of circular coils drops regularly while the horizontal displacement increases from 0 mm to 40 mm. The coupling coefficients between circular coils are 0.1494, as the horizontal displacement is 25mm. Therefore, the circular coils have enough stability with the horizontal displacement variation. Compared with...
In this paper a new approach for converting nano-scale mechanical energy into electric energy by piezoelectric zinc oxide nanowire arrays is discussed. The operation mechanism of the nanogenerator relies on the piezoelectric potential created by an external strain; a dynamic straining of the nanowire results in a transient flow of the electrons in the external load due to the driving force of the...
Technology advantages of wireless sensor networks have shown great deal of promises in various biomedical applications. In this paper we introduced a specially-designed body sensor networks (BSN) development platform for on-body physiological measurements and body-proximal wireless data communications. The BSN platform we have developed insofar include BSN node boards, a photoplethysmograph sensor...
The development of optoelectronic integrated circuits (OEIC) that combine optical and electronic functionalities on a single chip have been driven by numerous telecommunications applications including microwave-optical interfaces for radio-over-fiber picocellular networks for the next-generation wireless communication systems, also know as fourth-generation (4G) systems. The integration of a resonant...
At present, labor-saving and water-saving technology is a key issue in irrigation. A wireless solution for intelligent field irrigation system dedicated to Jew's-ear planting in Lishui, Zhejiang, China, based on ZigBee technology was proposed in this paper. Instead of conventional wired connection, the wireless design made the system easy installation and maintenance. The hardware architecture and...
We report experimental and numerical results on frequency locking, quasi-periodic and chaotic outputs induced by wireless signals on a nonlinear photonics interface consisting of a laser diode driven by a resonant tunnelling diode.
We report on a wireless to optical interface consisting of a laser diode driven by resonant tunneling diode. Circuit electrical behavior and laser output are well predicted by a Lienardpsilas driven oscillator model.
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