The performance of more than 60 different electromagnetic energy harvesters described in more than 100 publications is benchmarked. The benchmarking is based on earlier published parameters from literature as well as on two novel parameters introduced in this paper. The former allow to compare different harvester conversion principles as well as harvesters of different electrodynamic design pri...

In this paper, an energy efficient digital baseband circuit for piezoelectric (PE) harvester powered batteryless remote control system is presented. Pulse mode PE harvester, which provides short duration of energy, is adopted to replace conventional chemical battery in wireless remote controller. The transmitter digital baseband repeats the control command transmission once the digital circuit ...

Abstract—Simultaneous Wireless Information and Power Transfer (SWIPT) has attracted significant attention in the communication community. The problem of waveform design for SWIPT has however never been addressed so far. In this paper, a novel SWIPT transceiver architecture is introduced relying on the superposition of multisine and OFDM waveforms at the transmitter and a power-splitter receiver...

Harvesting the electrical energy from their working environment has become a feasible choice of realizing self-powered systems or providing supplementary power sources to the battery. In this paper, a pre-loaded piezoelectric cantilever bimorph (PCB) energy harvester is adopted as the research object, for which a single degree-of-freedom analytical model and finite element modeling have been ca...

The Florida harvester ant, Pogonomyrmex badius collects the seeds of many plant species and stores them in underground nest chambers for later consumption. Seeds taken from multiple nests in 1989, 2014 and 2015 were separated by size and species and identified through published keys, comparison with herbarium specimens and with identified seed collections. Harvester ants stored at least 58 spec...

In order to reduce the harvest loss and optimize improve comprehensive performance of combine harvester, relationship between feeding quantity, drum torque, speed, loss, other factors wheat harvester is studied, functional quantity speed determined. According test data, model torque a quadratic function. For land with uniform growth, size mainly affected by forward harvester. this way, paper in...

Productivity models are important decision support tools for harvesting operations. They should be derived with the least possible effort but with the highest possible precision. Models based on production monitoring or time studies are time consuming in their derivation. No models are available for new machine developments although it is particularly important to estimate productivity under gi...

In social insects, groups of workers perform various tasks such as brood care and foraging. Transitions in workers from one task to another are important in the organization and ecological success of colonies. Regulation of genetic pathways can lead to plasticity in social insect task behaviour. The colony organization of advanced eusocial insects evolved independently in ants, bees, and wasps ...

The problem of optimizing influence diffusion in a network has applications in areas such as marketing, disease control, social media analytics, and more. In all cases, an initial set of influencers are chosen so as to optimize influence propagation. While a lot of research has been devoted to the influence maximization problem, most solutions proposed to date apply on directed networks, consid...