Beginning with a short historical sketch, electrodynamic energy harvesters with focus on vibration generators and volumes below 1 dm are reviewed. The current challenges to generate up to several milliwatts of power from practically relevant flows and vibrations are addressed, and the variety of available solutions is sketched. Sixty-seven different harvester concepts from more than 130 publica...

The exploitation of nonlinear behavior in vibration-based energy harvesters has received much attention over the last decade. One key motivation is that the presence of nonlinearities can potentially increase the bandwidth over which the excitation is amplified and therefore the efficiency of the device. In the literature, references to resonating energy harvesters featuring nonlinear oscillato...

Since the introduction of the nanonetworks, molecular communication has become a popular research area in computer science. Although there are several methods proposed to implement molecular communication, none of them treats resources as discrete entities. We define resources as the discrete physical particles taking part in the communication tasks in a nanonetwork, such as information encodin...

The paper contributes to the topic of optimal utilization of spatially distributed renewable resources. Namely, a problem of “sustainable” optimal cyclic exploitation of a renewable resource with logistic law of recovery is investigated. The resource is distributed on a circle and is collected by a single harvester moving along the circle. The recovering and harvesting rates are position-depend...

that a shockload of 45 kW should be allowed. The desien of The development of a simple chopper harvester is described and ways in which this complicated machine might be simplified are suggested. The decisions taken and some of the specially designed components used in 'building the machine are described and the difficulties experienced during its operation and their solution are explained.

1. Rehkugler, G. E., and S. D. Parsons. 1964. Sympos ium : Studies on the development of mechanical cabbage harvesters—Progress Report. Some physical properties of the cabbage plant and related harvester development. Paper presented at the winter meeting, American Society of Agri cultural Engineers, New Orleans,, La. 2. Wright, F. S., and W. E. Splinter. 1964. Sympos ium: Studies on the develop...

This paper reports a microfabricated piezoelectric MEMS inertial energy harvester that can scavenge high-frequency mechanical vibrations in all three dimensions with an active inner volume of only 55 mm. The device can generate 0.1 to 10.5 μW from out-of-plane vibrations (365-465 Hz), and 0.1 to 3.2 μW from in-plane vibrations (680-930 Hz) at 0.5 g acceleration input. The reported harvester is ...

• The trial was carried out at 2 sites. The vines in both sites were trained to a 2-wire vertical trellis. The only difference was: Site 1 was thinned with a Gregoire G65 harvester, and used three pairs of bow rods to thin the lower third of the canopy. Site 2 used a URM Vinestar harvester, and used four pairs of bow rods to thin the lower half of the canopy. The reason only a portion of the ca...

predicting the maintenance and management costs and replacement age of tractors in agricultural mechanized units, is important from several points. so, doing a timely agricultural operations, more accurate measure of the amount of income  including the cost of these items , determining the useful life of old tractors , replacement age, cost of the process changes and the possibility of examinin...

A new measurement concept for cut-to-length forest harvesters is presented in this paper. The cut-to-length method means that the trees are felled, delimbed and cut-to-length by the single-grip harvester before logs are transported to the roadside. The concept includes measurements done to standing trees before felling to calculate optimal length of logs. The modern forest harvesters use mechan...