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wind in Biological News

Tilting at wind farms

A way to make wind power smoother and more efficient that exploits the inertia of a wind turbine rotor could help solve the problem of wind speed variation, according to research published in the International Journal of Power Electronics . Wind power is being touted as a clean and inexhaustib...

Lead-flapping objects experience less wind resistance than their trailing counterparts

It is commonly known that racing cars and bicyclists can reduce air resistance by following closely behind a leader, but researchers from New York University and Cornell University have found the opposite is true with flapping objects, such as flags. Their study, published in the most recent issue...

NJIT architect professor advocates best-building practices for high wind regions

More than ever before, building design and construction can be significantly improved to reduce wind pressures on building surfaces and to help better resist high winds and hurricanes in residential or commercial construction, said NJIT architecture professor Rima Taher, PhD. Taher, who is also a...

Whales and dolphins influence new wind turbine design

Sea creatures have evolved over millions of years to maximise efficiency of movement through water; humans have been trying to perfect streamlined designs for barely a century. So shouldn't we be taking more notice of the experts? Biologists and engineers from across the US have been doing just ...

First wind turbines on Galapagos Islands will halve diesel imports, reduce risk of future oil spills

In January 2001, the world held its breath when the tanker Jessica, loaded with 150,000 gallons of fuel, struck a reef and began breaking up in the heart of one of the most precious, famous and fragile ecosystems on earth the Galapagos Islands. At risk were vast numbers of unique species of fl...

Smarter energy storage for solar and wind power

Development of the first hybrid battery suitable for storing electricity from renewable energy sources such as solar and wind is now a step closer. CSIRO and Cleantech Ventures have invested in technology start-up Smart Storage Pty Ltd to develop and commercialise battery-based storage solutions....

The power of multiples: Connecting wind farms can make a more reliable - and cheaper - power source

Wind power, long considered to be as fickle as wind itself, can be groomed to become a steady, dependable source of electricity and delivered at a lower cost than at present, according to scientists at Stanford University. The key is connecting wind farms throughout a given geographic area wit...

Recycling wind turbines

The development of wind power promises much in terms of providing us with renewable energy for the future and wind turbines could be the most effective way to harness that power. Danish researchers now suggest that in order to assess the overall environmental impact of wind power, however, the fin...

Trading energy for safety, bees extend legs to stay stable in wind

CAMBRIDGE, Mass., June 2, 2009 -- New research shows some bees brace themselves against wind and turbulence by extending their sturdy hind legs while flying. But this approach comes at a steep cost, increasing aerodynamic drag and the power required for flight by roughly 30 percent, and cutting in...

Hinode: new insights on the origin of solar wind

Spectacular images and data from the Hinode mission have shed new light on the Sun's magnetic field and the origins of solar wind, which can disrupt power grids, satellites and communications on Earth. The results are published in the 7 December issue of the journal Science. Data from Hinode,...

AGU journal highlights -- Aug. 6, 2009

...e dynamics of how ocean masses move in response to wind and other stresses is important for understanding ...thern Ocean near Antarctica and how they relate to wind stress, Ponte and Quinn analyze data from the Grav...y helps clarify the dynamic mechanisms that relate wind stress to ocean mass flows in the Southern Ocean a...

Plankton Power and RTDC announce proposed algae-to-biofuels pilot facility on Cape Cod

...ole, we want to make the MMR not just a center for the National Guard and Coast Guard, but an incubator for cutting-edge initiatives on algae as fuel, wind and solar energy, and unmanned aircraft for joint military and oceanographic research. The use of algae as a fuel has major potential and can be nurtu...

University of Miami receives stimulus funds for study of hurricane impacts on structures, ecosystems

...low scientists to directly observe and quantify critical storm factors, such as sea spray and momentum transfers across the ocean's surface in extreme wind conditions. SUSTAIN will be used to develop and implement advanced sensor technology, including remote and optical imaging systems that can be deploy...

Robo-bats with metal muscles may be next generation of remote control flyers

... This dual functionality will help cut down on the robo-bat's weight, and allow the robot to respond quickly to changing conditions such as a gust of wind as perfectly as a real bat." In addition to creating a surveillance tool with very real practical applications, Seelecke says the robo-bat could a...

All in sight

... are therefore usually based on observations of the spout, the condensing and quite warm breathing cloud. It rises, depending on the whale species and wind conditions, between one metre and ten metres over the water surface and remains visible for only a few seconds. A thermal imaging camera specifically ...

New tracking approach will help protect polar bears

...and analyze tracks, this work is expected to provide an economic boost for the communities involved. And when the refurbished huts each equipped with wind turbines, generators, heaters and 15 beds aren't being used for research, Inuit hunters may be able to bring in eco-tourists by skidoo to observe the...

Global warming increasing the dispersal of flora in Northern forests

...y affects the dynamics and genetic variation of plant populations. Spreading into more favourable areas will help them survive in the warming climate. wind conditions play a key role, as turbulent vertical streams, in particular, spread seeds very efficiently, even over long distances. The researchers...

Scientists should look at their own carbon footprint

...this on a larger scale." There are ways researchers can reduce the amount of carbon they use. Some helicopters use less fuel than others. Solar and wind power are alternatives to gas-fired generators. And while carbon offsets don't reduce the amount of carbon emitted, they are an easy first step. "...

SRI International announces findings from new upper atmospheric radar system for scientific research

...ntists are using the novel system to investigate the interaction of upper atmospheric phenomena, which are driven by energetic particles and the solar wind that cause spectacular displays of the aurora borealis, with lower atmospheric phenomena such as tropospheric storms and weather patterns. Remote oper...

Wings that waggle could cut aircraft emissions by 20 percent

... as a bit of a surprise to all of us in the aerodynamics community. It was discovered, essentially, by waggling a piece of wing from side to side in a wind tunnel." "The truth is we're not exactly sure why this technology reduces drag but with the pressure of climate change we can't afford to wait aro...

Wind, salt and water are leading indicators of land degradation in Abu Dhabi

...ed to various land degradation stresses, including wind erosion, salinization, waterlogging, landfilling, ...nd that, among natural forces of land degradation, wind has a major role in moving soil from loose surfaces, and mainly in dune areas. wind is the main cause of irreversible land degradation...

Climate change threatens Lake Baikal's unique biota

...ver, the crustaceans could be affected by changes in the transparency of the ice, an expected result of shifting precipitation patterns and changes in wind dynamics. Shortened periods of ice cover and changes in the ice's transparency may also harm the Baikal seal, the lake's top predator and the world'...

American Chemical Society's Weekly PressPac -- April 22, 2009

...cuit boards, electrical insulation, and other electronics products that now wind up on society's growing heaps of electronic waste. Their study appears in A...tion. Other events include presentations on global warming, the benefits of wind power and other educational projects. Check www.acs.org/earthday for deta...

Researchers report 'moderately large' potential for red tide outbreak in Gulf of Maine region

...ates weather conditions, river runoff, and various wind and current patterns to predict the intensity and ...range of scenarios, using the predominant regional wind patterns and ocean conditions from each year since...k along the coast will depend in large part on the wind patterns in May, June, and July. The GOMTOX re...

Marine scientists warn of potential for spring, summer red tide outbreak in Gulf of Maine

...rt of the toxic cells using computer models. They've developed a computer simulation that incorporates weather conditions, river runoff and various wind and current patterns to predict the intensity and location of blooms in the Gulf of Maine. The simulations suggest a moderately large regional bloo...

American Chemical Society Weekly PressPac -- April 8, 2009

..."Reduce Your Carbon Footprint" community program for children across the nation. Other events include presentations on global warming, the benefits of wind power and other educational projects. Check www.acs.org/earthday for details about Earth Day activities. ACS pressroom blog The American Chem...

Public trust doctrine could aid management of US oceans

... the issue of how best to regulate U.S. ocean waters to allow oil, wave and wind energy development, while sustainably managing critical fisheries and marin... shipping lanes, ferry routes, U.S. Navy operations, fisheries and proposed wind farms -- overlap critical habitat of the endangered right whale," she says....

April 2009 Geology and GSA Today media highlights

...ty and seafloor structure, and giant earth-surface wind ripples. GSA TODAY focuses on the Great Ordovician...rving more than a million people. Largest wind ripples on Earth? Juan Pablo Milana, InGe-CONIC...5401 San Juan, Argentina. Pages 343-346. Strong wind action has been the theme for many popular movies....

New wheat disease could spread faster than expected

... CORVALLIS, Ore. Both plant and human diseases that can travel with the wind have the potential to spread far more rapidly than has been understood, according to a new study, in findings that pose serious concerns not only for ...

Lohafex provides new insights on plankton ecology

...stern had to leave the eddy to avoid strong storms that swept the region. On several occasions the expedition participants weathered short storms with wind speeds of over 120 kilometres per hour. "Nevertheless, despite the hard work under difficult circumstances, Lohafex has been an exciting experience la...

New simulation shows consequences of a world without Earth's natural sunscreen

...re not banned through the treaty known as the Montreal Protocol. The simulation used a comprehensive model that included atmospheric chemical effects, wind changes, and radiation changes. The analysis has been published online in the journal Atmospheric Chemistry and Physics . "Ozone science and monit...

Carnegie Mellon researchers apply new statistical test

...vidson's research team said that by using statistical methods incorporating wind speed and wind direction at 10-minute intervals for a full year, they can help track the s...

AGU journal highlights -- March 12, 2009

...lain Venusian vortices Model relates South Polar ozone concentrations and wind patterns Laboratory crystals give clues to deep Earth puzzle Spacecraf.../2008GL036093 3. Model relates South Polar ozone concentrations and wind patterns The dominant mode of climate variability across the Southern H...

New renewables to power 40 per cent of global electricity demand by 2050

...itical support, renewable energy technologies like wind and photovoltaics could supply 40 percent of the w...According to Erik Lundtang Petersen of Risoe DTU's wind Energy Department in Roskilde, Denmark, in order for the wind sector to deliver its full potential, it must focu...

Dust deposited in oceans may carry elements toxic to marine algae

...ted aerosols on filters, incubated the samples with seawater, and observed the responses of phytoplankton. They found that the results depended on the wind direction. Aerosols collected from air masses originating over Europe stimulated phytoplankton growth, whereas aerosols from air originating over Afri...

Getting into hot water

...n the developed world is on advanced technological approaches to alternative energy sources, such as photovoltaic cells for solar power and harnessing wind and wave with elaborate systems to generate electricity. However, the cost of such systems may be prohibitive for some applications in the developing ...

Earth's highest known microbial systems fueled by volcanic gases

...compa in extremely dry soils not associated with fumaroles. The bacteria detected in such dry soils may be transient life transported and deposited by wind in the extreme environment of Socompa, with some organisms surviving to bloom during periodic pulses of water and nutrients, said Schmidt. "These ...

Story tips from the Departments of Energy's Oak Ridge National Lab -- March 2009

... part of a report by the Roof Industry Committee on Weather Issues on damages from Hurricane Ike. According to the report, set for release this month, wind rushing into the large openings pressurizes the building, adding more force on the roof and increasing the likelihood for damages. Post-hurricane cons...

Study predicts when invasive species can travel more readily by air

...e models include more than 35 million scheduled flights between 3,570 airports on more than 44,000 different routes. But exactly how native species wind up aboard an outbound passenger or freight aircraft is still being studied. Tatem said it can be a combination of goods transport and people bringing ...

BioScience tip sheet, March 2009

...action of that devoted to other threats. It's Not Easy Being Green: wind Energy and a Declining Grassland Bird. Christin L. Pruett, Michael A. Pa...hout the species' prime habitat poses a further risk, since the birds avoid wind turbines and their associated power transmission lines. This behavior means...
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