An algorithm for labeling a two-speaker phone call according to the active speaker at each time frame is presented. The algorithm is based on clustering audio frames according to one features set, and then modeling speakers for each cluster and resegmenting iteratively, over a different features set. The first clustering stage is expected to yield clusters that contain audio of both speakers gr...

Solar and thermal energy conversion are two major renewable technologies highly sought after in the past decades by academia, industry, policymakers. Besides traditionally large-size solar convertors, more recently, lightweight, flexible cells thermoelectric generators (TEGs) based on organic semiconductor materials have attracted much attention due to booming development of wearable electronic...

Self-powered system is a system that can sustainably operate without an external power supply for sensing, detection, data processing and data transmission. Nanogenerators were first developed for selfpowered systems based on piezoelectric effect and triboelectrification effect for converting tiny mechanical energy into electricity, which have applications in internet of things, environmental/ ...

Background: The development of active gaming offers a choice for children to be physically active whilst participating in an activity that is enjoyable and highly valued. Children expend energy when they play activity enhanced video games, yet little is known about their choice when given active alternatives over seated play. Methods: This study examined (i) choice of play between a seated vide...

Vibration suppression of rotating machinery is an important engineering problem. In this paper, a review of the research work performed in real-time active balancing and active vibration control for rotating machinery, as well as the research work on dynamic modeling and analysis techniques of rotor systems, is presented. The basic methodology and a brief assessment of major difficulties and fu...

A set of tools that is being developed for the automated inspection of rubble-mound breakwaters, as well as its application to the survey of Sines' west breakwater armour layer, are described. The results from the IRIS surveys are compared to those of the surveys carried out by the Portuguese Hydrographic Institute and first assessment of the structure evolution between 2000 and 2003 is made.

A new thermoelectric-powered wireless sensor network platform is presented for the low-cost environmental sensing in building envelopes through thermoelectric energy harvesting and ultra-low power management. It designed prototyped entirely inside a window frame without compromising architectural aesthetics. This self-powered achieved by maximizing harvested from optimizing unit’s consumption. ...

The burning of fossil fuel for power generation emits Greenhouse gases into the environment. Gases (GHGs) emission is principal cause global warming. In order to regulate emissions these gases, need be assessed and quantified. Carbon footprint evaluation human activities that lead GHGs emissions. Covenant University Electricity Network during periods when utility supply fail runs on diesel powe...

Abstract Data buoys are a widespread method of not only monitoring environmental parameters, but have range other applications: from surveillance to providing power for autonomous underwater vehicles (AUVs). The majority data currently in use either solely powered by batteries, or they employ an array solar panels sporadically top up the battery when conditions suitable. Less usual is wind powe...

The integrated body sensor networks are expected to dominate the future of healthcare, making a critical paradigm shift that will support people in comfort and security their own homes. Thermoelectric generators, this regard, can play crucial role as they steadily generate electricity from heat enable self-powered wearable or implantable medical, health, sports devices. This work provides compr...