Flapping foil energy harvesting systems are considered as highly competitive devices for conventional turbines. Several research projects have already been carried out to improve performances of such new devices. This paper is devoted study effects non-sinusoidal heaving trajectory, pitching and the effective angle attack on extraction a flapping operating at low Reynolds number (Re=1100). An e...

Abstract The Subantarctic Mode Water (SAMW) plays an essential role in the global heat, freshwater, carbon, and nutrient budgets. In this study, decadal changes SAMW properties Southern Indian Ocean (SIO) associated thermodynamic dynamic processes are investigated during Argo era. Both temperature salinity of SIO show increasing trends 2004-2018. A two-layer structure trend, with more warm salt...

The purpose of this paper is to analyse the possibility of implementing multiprotocol and multifrequency wireless Building Management Systems (BMSs) for smart home environments by using Software Defined Radio (SDR) respectively Cognitive Radio (CR) technologies. BMSs by heaving implemented these technologies or some parts of them, could provide a high level of interoperability between wireless ...

This work describes the development of a model-free reinforcement learning-based control methodology for the heaving plate, a laboratory experimental fluid system that serves as a model of flapping flight. Through an optimized policy gradient algorithm, we were able to demonstrate rapid convergence (requiring less than 10 minutes of experiments) to a stroke form which maximized the propulsive e...

A two-chip analog micropower hearing aid circuit is developed which is based on a low voltage three micron CMOS process. The novel features of the circuit are the use of adaptive biasing of MOS Translinear Loop ( MT15 ) circuit and an innovative application of an adapiive technique in reducing the value of a degeneradng linearising resistor in the input differential stage of ,the AGC block. The...

H umans have been going into space for a number of reasons: to “beat the other side” during the Cold War, out of curiosity, to make the first tentative steps into the great beyond or simply “because it’s there”. Yet, to justify continued or even a permanent presence of humans in space now requires better arguments: the aggressive space programmes by China and India, for instance, serve to demon...