News tagged with harvests
Mechanical motion rectifier leads to better energy harvesting
(Phys.org) -- Mechanical energy is all around us, whether in the form of a vehicle's vibrations, ocean waves, or vibrating train tracks. However, much of this energy is irregular and oscillatory - for example, road bumps ...
Apr 25, 2012 |
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Artificial light-harvesting method achieves 100% energy transfer efficiency
(PhysOrg.com) -- In an attempt to mimic the photosynthetic systems found in plants and some bacteria, scientists have taken a step toward developing an artificial light-harvesting system (LHS) that meets one ...
Sep 01, 2011 |
4.9 / 5 (40) |
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Energy harvesting skin generates power from air conditioners
(PhysOrg.com) -- Devices that harvest ambient energy from the surrounding environment have become popular since, for some applications, they eliminate the need for batteries that must constantly be replaced. ...
Apr 20, 2011 |
4.9 / 5 (7) |
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Quick jolt of energy could improve energy harvesting by a factor of 40
(PhysOrg.com) -- Harvesting mechanical energy from the environment and converting it into electrical energy has recently become a viable method for powering low-energy electronics, such as sensors and actuators. ...
Jul 21, 2010 |
4.5 / 5 (22) |
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Porphyrin Dimers Increase Efficiency of Dye-Sensitized Solar Cells
(PhysOrg.com) -- Porphyrins are most commonly thought of as the pigment in red blood cells, but now scientists have found that porphyrins can also be used to increase the efficiency of an inexpensive type ...
Oct 30, 2009 |
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Award-winning energy harvester brings practical applications closer
(PhysOrg.com) -- Although the idea of harvesting ambient energy from the environment and using it to generate electricity is alluring, most of the technology so far is capable of generating only very small ...
Dec 01, 2011 |
5 / 5 (5) |
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Why letting salmon escape could benefit bears and fishers
New research suggests that allowing more Pacific salmon to spawn in coastal streams will not only benefit the natural environment, including grizzly bears, but could also lead to more salmon in the ocean and ...
Apr 10, 2012 |
5 / 5 (3) |
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UK scientists develop optimum piezoelectric energy harvesters
Scientists working as part of the Metrology for Energy Harvesting Project have developed a new model to deliver the maximum power output for piezoelectric energy harvesters.
Mar 02, 2012 |
4.4 / 5 (7) |
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Early ripening of grapes pinned to warming, soil moisture
Researchers in Australia say they have pinpointed key factors in the early ripening of grapes, providing potential answers for wine growers threatened by global warming.
Feb 26, 2012 |
3.8 / 5 (4) |
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Wringing more energy out of everyday motions
Randomness and chaos in nature, as it turns out, can be a good thing – especially if you are trying to harvest energy from the movements of everyday activities like walking.
Feb 21, 2012 |
4 / 5 (2) |
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Giant piezoelectric effect to improve MEMS devices
Researchers in the Department of Materials Science and Engineering and the Materials Research Institute at Penn State are part of a multidisciplinary team of researchers from universities and national laboratories ...
Dec 02, 2011 |
5 / 5 (3) |
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Out of thick air: Refining tools and techniques of fog harvesting
In the arid Namib Desert on the west coast of Africa, one type of beetle has found a distinctive way of surviving. When the morning fog rolls in, the Stenocara gracilipes species, also known as the Namib Beetle, ...
Apr 21, 2011 |
4.5 / 5 (2) |
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Old-growth tree stumps tell the story of fire in the upper Midwest
Researchers have constructed a 226-year history of fire in southern Illinois by looking at fire scars in tree stumps. Their study, the most in-depth fire history reported for the upper Midwest, reveals that ...
Mar 14, 2011 |
5 / 5 (2) |
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Nanowires exhibit giant piezoelectricity
Gallium nitride (GaN) and zinc oxide (ZnO) are among the most technologically relevant semiconducting materials. Gallium nitride is ubiquitous today in optoelectronic elements such as blue lasers (hence the blue-ray disc) ...
Jan 26, 2011 |
5 / 5 (3) |
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Climate flux matched Europe's social rise and fall
Ancient tree rings show links between climate change and major events in human history, like migrations, plagues and the rise and fall of empires, said a study this week in the journal Science.
Space & Earth / Earth Sciences
Jan 14, 2011 |
4.4 / 5 (14) |
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Harvest
Harvest is the process of gathering mature crops from the fields. Reaping is the cutting of grain or pulse for harvest, typically using a scythe, sickle, or reaper. The harvest marks the end of the growing season, or the growing cycle for a particular crop, and social importance of this event makes it the focus of seasonal celebrations such as a harvest festival, found in many religions. On smaller farms with minimal mechanization, harvesting is the most labor-intensive activity of the growing season. On large, mechanized farms, harvesting utilizes the most expensive and sophisticated farm machinery, like the combine harvester. Harvesting in general usage includes an immediate post-harvest handling, all of the actions taken immediately after removing the crop—cooling, sorting, cleaning, packing—up to the point of further on-farm processing, or shipping to the wholesale or consumer market.
For more information about Harvest, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
