Synopsis: Oceanography:


texte_agro-tech\Nature 04482.txt

Oracle, based in Redwood Shores, California, has its own products aimed at helping researchers and hospitals to analyse data.


texte_agro-tech\Nature 04483.txt

and at sea testing than any other company, says Caitlyn Antrim, executive director of the Rule of law Committee for the Oceans in WASHINGTON DC,

and a deep-seabed-mining consultant. The venture could add#40#billion (US$60#billion) to the UK economy over the next 30#years,

Cameron s government sponsored Lockheed s claim to the 58,000-square-kilometre potential mining site through the company s subsidiary UK Seabed Resources in London.

The International Seabed Authority in Kingston Jamaica, which granted the exploration rights, has granted also claims in the region to several other countries,

Polymetallic nodules form over thousands of years on the sea floor, through processes that are still not fully understood;

and the founder of Seaminr, a seabed-mining consultancy in Urbanna, Virginia. PAUL JACKMAN/NATUREHARVESTING nodules is technically easier than mining the mineral-rich remnants of non-active hydrothermal vents on the sea floor,

a proposal that has garnered also attention (see Nature 447,246-247; 2007). ) Nodules rest unattached, and often visible, in seafloor sediments,

so obtaining them would not entail grinding up rocky seafloor crust. Lockheed has released not specific plans,

but the general scheme for harvesting uses a device that moves along the sea floor, vacuuming or raking up nodules.

The equipment would grind down the nodules to create a slurry that would be pumped to ships

and then transported onshore for processing (see Wealth from the sea). The most lucrative product would probably be nickel,

or creatures that live higher in the water column, such as fish. A study at a nodule plain off Peru found that seafloor communities showed limited recovery after disturbance

with sediment dwellers gradually returning over 7 years (H.#Bluhm Deep-sea Res. II 48,3841-3868;

) Craig Smith, a deep-sea biologist at the University of Hawaii at Manoa, will lead an initial assessment of seafloor life for Lockheed s project, gathering baseline data for the potential harvest zone


texte_agro-tech\newsoffice 00086.txt

cable can be deposited on the seafloor in straight lines, or in meandering, coiling patterns. f the boat is sailing slower than the rate of the cable,

that the height from which a filament is deployed does not influence its coiling patterns good news for ships that navigate choppy waters to deploy fiber-optic cables. his is important because,

as a ship sails, the height of the ocean floor relative to the surface is changing all the time,


texte_agro-tech\newsoffice 00261.txt

Leaks in water pipes can waste up to half the water in a system; oil-pipeline leaks can lead to toxic spills and prolonged, expensive cleanup operations.

and should be effective in gas, water, and oil pipes. MIT mechanical engineering professor Kamal Youcef-Toumi, a co-author of the research papers,


texte_agro-tech\newsoffice 00354.txt

and allow reuse of about 25 percent of their water. It could also eliminate 10 trucks of wastewater shipping per day for Lagunitas.

and reusing water easier and more affordable, as America dependence on water increases, along with water pollution. lmost every product we make has a water footprint,

Silver says. s our economy grows, water tables are dropping and wastewater pollution is rising, causing many companies to consider water risk in their overall strategy.

The need for more cost-effective solutions is increasingly acute in the developed world and also critical in the developing world.

We are leveraging biotechnology to provide the highest return on investment for managing water. To that end, Cambrian is working on other projects that leverage exoelectrogenic microbes to treat wastewater.

One project, called Biovolt, is powered a self water treatment system for U s army forward operating bases that treats wastewater

for the agricultural industry. arth as a spaceshipecovolt is valuable today as a solution to Earth water issues.


texte_agro-tech\newsoffice 00415.txt

and they provide their own power source and water distribution. Strano and the paper lead author, postdoc and plant biologist Juan Pablo Giraldo, envision turning plants into self-powered, photonic devices such as detectors for explosives or chemical weapons.


texte_agro-tech\newsoffice.mit.edu 2015 00822.txt.txt

and extract a variety of contaminants from soil and water. Ferdinand Brandl and Nicolas Bertrand

When they learned that UV LIGHT was used to disinfect water in certain treatment plants, they began to ask a different question. e thought

or hormones from water, because we saw that the particles aggregate once you irradiate them with UV LIGHT. trap for ater-fearingpollutionthe researchers synthesized polymers from polyethylene glycol,

and dispersed evenly in water. But when exposed to UV LIGHT, the stabilizing outer shell of the particles is shed,


texte_agro-tech\phys_org 00025.txt

because they are synthesized by adding the tin alkoxide precursor into boiling water followed by heat treatment Pol said.

This is very straightforward rapid'cooking'of a metal-organic precursor in boiling water. The precursor compound is a solid tin alkoxide a material analogous to cost-efficient and broadly available titanium alkoxides.


texte_agro-tech\phys_org 00027.txt

Peidong Yang Bin Liu and colleagues note that harnessing sunlight to split water and harvest hydrogen is one of the most intriguing ways to achieve clean energy.

which only emit water when driven. But making hydrogen which mostly comes from natural gas requires electricity from conventional carbon dioxide-emitting power plants.

Producing hydrogen at low cost from water using the clean energy from the sun would make this form of energy

when immersed in water and exposed to sunlight produces hydrogen gas. The scientists say that the technique could allow their technology to be scaled up at low cost.


texte_agro-tech\phys_org 00244.txt

because burning hydrogen fuel emits only water vapor.""Many researchers are looking to inorganic materials for new sources of energy,

They also know that water can be split into oxygen and hydrogen by combining these proteins with titanium dioxide


texte_agro-tech\phys_org 00293.txt

This protein concentration is similar to one drop of milk dissolved in a hundred tons of water.


texte_agro-tech\phys_org 00380.txt

If graphene oxide device has water in it and it is heated up the water can actually burn the graphene oxide and produce carbon dioxide.

It's a pitfall that could be important to understand in the development of long-lasting solar cells where sun could provide risky heat into the equation.


texte_agro-tech\phys_org 00493.txt

The metal nanoparticle-decorated polymer nanocapsules exhibit the following properties in water: high stability for up to 6 months;

which has high stability in environmentally preferable solvents such as water.""The research results demonstrated that this new technology shows high stability, dispersibility, catalytic activity,

and reusability in water, which other existing metal nanoparticles on solid supports have not been able to do,


texte_agro-tech\popsci_2013 01916.txt

It was called The Island a sci-fi film. Anyhow there are other ways to immortality then what you described.


texte_agro-tech\R_news.discovery.com 2015 02509.txt

#Micromotors Could Help Reduce Ocean Pollution The buildup of carbon dioxide, a major greenhouse gas, is increasingly impacting oceans around the world, making waters more acidic and threatening sea life.

Nanoengineers at the University of California, San diego have made a splash in trying to overcome this obstacle.

Theye developed tiny motors smaller than the width of a human hair that can autonomously travel through oceans to remove CO2 and convert it to a usable solid form.

the micromotors removed up to 90 percent of the carbon dioxide from a solution of deionized water.

In a seawater solution the micromotors removed 88 percent of the carbon dioxide in the same timespan. n the future, we could potentially use these micromotors as part of a water treatment system,

like a water decarbonation plant, said Kevin Kaufmann, an undergraduate researcher and a co-author of the study.

The motors are six-micrometer-long tubes with an outer polymer surface that holds a chemical enzyme carbonic anhydrase designed to speed up the reaction between carbon dioxide and water and form bicarbonate.

generating oxygen bubbles that propel the motors through the water. However, scientists are currently exploring ways to cut back on the two to four percent of hydrogen peroxide used as they focus on alternatives to use water itself to fuel the motors.

Going Blue: Ocean Landscapes Need Protectiononce the moters complete their mission, they can be recovered from the water

and reused for future applications. f the micromotors can use the environment as fuel, they will be more scalable, environmentally friendly and less expensive, Kevin Kaufmann,

an undergraduate researcher and co-author of the study, said in a press release, adding that in the future, these micromotors could likely be used as part of a water treatment system,

like a water decarbonation plant. via University of California, San Dieg l


texte_agro-tech\R_news.sciencemag.org 2015 03223.txt

#Tiny ant takes on pesticide industry Few people like antshey bite and overrun kitchen counters.


texte_agro-tech\R_phys.org 2015 00003169.txt

"I think we have seen just the tip of the iceberg. Digital imaging is expected to enable many emerging fields including wearable devices, sensor networks, smart environments, personalized medicine,


texte_agro-tech\R_scitechdaily.com 2015 00660.txt

Imagine two river crossings, one with tightly-packed stepping-stones, and the other with large gaps between stones.


texte_agro-tech\R_scitechdaily.com 2015 00834.txt

Tests also showed that a substantial amount of the Yale team sunscreen remained on the skin surface for hours, even after exposure to water.


texte_agro-tech\R_techcrunch.com 2015 00002472.txt

replacing lifeguards at beaches with drones carrying floatation devices that can identify people in distress.


texte_agro-tech\R_timesofindia.indiatimes.com_home_science 2015 01122.txt

The biofuel is produced from draff the sugar rich kernels of barley soaked in water to facilitate the fermentation process necessary for whisky production and pot ale,


texte_agro-tech\R_timesofindia.indiatimes.com_home_science 2015 01123.txt

The biofuel is produced from draff the sugar rich kernels of barley soaked in water to facilitate the fermentation process necessary for whisky production and pot ale,


texte_agro-tech\R_www.3ders.org 2015 02853.txt

but the amount of water (the structure of the honeycomb) influences the exact frequency. All those voices can


texte_agro-tech\R_www.3dprintingindustry.com 2015 01014.txt

#3d Printed Micro-Fish to Explore the Oceans of Our Bodies In the exponentially vital industry of nanoengineering,


texte_agro-tech\R_www.alternative-energy-news.info 2015 000024.txt

Their innovative Hydrelio Floating PV system allows standard PV panels to be installed on large bodies of water such as:

drinking water reservoirs, quarry lakes, irrigation canals, remediation and tailing ponds, and hydro electric dam reservoirs.

This simple and affordable alternative to ground-mounted systems is particularly suitable for water-intensive industries who cannot afford to waste either land or water.


texte_agro-tech\R_www.azonano.com 2015 00678.txt

and to extract chemicals or dye molecules out of water. Membranes with these particles attached could be used in devices to detect water contamination

or in filters to remove chemicals or dyes from industrial waste. However, to be effective and safe,

and into the water. range of state-of-the-art facilities on campus was used by the researchers. The Cornell Center for Materials Research (funded through the National Science Foundation Materials Research Science

so it won degrade from being exposed to air and water, Frey said, explaining that this keeps the chemical where it needs to be


texte_agro-tech\R_www.bbc.com_future 2015 00302.txt

They are sharing concepts and ideas with researchers across the Pacific ocean. In Asia, Japan aerospace exploration agency (Jaxa) is also working on a hypersonic airliner called Hytex intended to cross the Pacific ocean in two hours at speeds of Mach 5. Both Lapcat-II

and Jaxa are part of a hypersonic knowledge-transfer project between Europe and Japan called Hikari.

If the hydrogen can be sourced from natural gas, instead of from the electrolysis of water, the airfare tickets of a hypersonic trip could drop to about half the price of a business-class ticket.


texte_agro-tech\R_www.biosciencetechnology.com 2015 01772.txt

Now, researchers from MIT and the Federal University of Goias in Brazil have developed a new technique that uses ultraviolet (UV LIGHT to extract man-made pollutants from soil and water.

Knowing that UV radiation is used for removing bacteria from water, they developed the idea of using their discovery for water purification.

hydrophilic (water-loving) shell and a hydrophobic (water-fearing) spherical core. he polymers are synthetized to ensure that

the water-loving part is separated from the water-fearing part. When this happens on a nanoparticle,

and therefore clump together to minimize contacts with water, Bertrand explained. From there, these larger aggregates can easily be retrieved through filtration or sedimentation,

with more than 95 percent of the nanoparticles removed from the water. When the nanoparticle loses its protective layer,

polymers are released into the water. While the polymer released (polyethylene glycol) is recognized as safe and used in various food, pharmaceutical and cosmetics products,

Bertrand nanoparticlesstill, even with the small amount of material released into the water Bertrand nanoparticles have compared benefits with current purification processes.

Plus, these chemical degradation processes do not work on all types of chemicals. hen unusual/unheard of molecules are found as contaminants (for example, the chemical spill in Elk River, WV, in January 2014),

other processes, such as activated carbon extraction, require great energy to push large quantities of water through filters. n our technology,

By filtering water through paper embedded with silver or copper nanoparticles, 99.9 percent water purity is achievable.

She calls it he Drinkable Book. Silver nanoparticles eliminate a wide variety of microorganisms, including bacteria and some viruses

which is put in a special holding device that water is filtered then through. One page can filter 26 gallons of drinking water;

one book can filter a person water needs for four years. Dankovich presented her technology

For example, if we need to use it to purify huge quantities of water the researchers said.


texte_agro-tech\R_www.clickgreen.org.uk_rss_research 2015 00068.txt

#Micro motors could soak up CO2 pollution in the oceans, study finds Machines that are smaller than the width of a human hair could one day help clean up carbon dioxide pollution in the oceans,

new research has found. Nanoengineers at the University of California, San diego, have designed enzyme-functionalized micromotors that rapidly zoom around in water,

remove carbon dioxide and convert it into a usable solid form. The proof of concept study represents a promising route to mitigate the build up of carbon dioxide,

In their experiments, nanoengineers demonstrated that the micromotors rapidly decarbonated water solutions that were saturated with carbon dioxide.

Within five minutes, the micromotors removed 90 percent of the carbon dioxide from a solution of deionized water.

The micromotors were just as effective in a sea water solution and removed 88 percent of the carbon dioxide in the same timeframe."

like a water decarbonation plant,"said Kevin Kaufmann, an undergraduate researcher in Wang's lab and a co-author of the study.

which speeds up the reaction between carbon dioxide and water to form bicarbonate. Calcium chloride which is added to the water solutions,

helps convert bicarbonate to calcium carbonate. The fast and continuous motion of the micromotors in solution makes the micromotors extremely efficient at removing carbon dioxide from water,

said researchers. The team explained that the micromotors'autonomous movement induces efficient solution mixing, leading to faster carbon dioxide conversion.

To fuel the micromotors in water, researchers added hydrogen peroxide, which reacts with the inner platinum surface of the micromotors to generate a stream of oxygen gas bubbles that propel the micromotors around.

When released in water solutions containing as little as two to four percent hydrogen peroxide the micromotors reached speeds of more than 100 micrometers per second.

As a next step, researchers are planning to make carbon-capturing micromotors that can be propelled by water."


texte_agro-tech\R_www.environmentalleader.com 2015 01166.txt

MECC uses the natural conductivity of saline wastewater to facilitate an electrochemical reaction that is designed to absorb CO2 from both the water and the air.

or used to counter acidity downstream from the process such as in the ocean. The reaction also yields excess hydrogen gas,


texte_agro-tech\R_www.foodnavigator.com 2015 01953.txt

added Jarolimkova. emoving water and storing the produce as powder will allow for maximum utilization of space during transport and storage as well as significantly prolonged shelf life.


texte_agro-tech\R_www.iflscience.com 2015 02981.txt

#New Material Made From 1 Billion Tiny Magnets Changes States Like Water Researchers at the Paul Scherrer Institute (PSI) announced they have created a synthetic material with magnetic properties

just as water changes from solid ice to liquid or steam with temperature change. Constructed from 1 billion tiny magnets,

A similar process can be observed in water molecules as water freezes into ice. Laura Heyderman


texte_agro-tech\R_www.mnn.com 2015 01044.txt

and cools itself by pumping water through its veins like a plant. Aside from its aesthetically-pleasing design, the Solar Sunflower also makes use of some innovative technology.

It uses something called HCPVT (Highly Efficient Concentrated Photovoltaic/Thermal) to generate electricity and hot water from solar power.

To counteract this, the Sunflower makes use of a hot water cooling system invented by the project's IBM collaborators.

rather than piping all that scorching-hot water through a radiator to dissipate the heat

(and thus waste it), the team instead uses that hot water as a power source itself,


texte_agro-tech\R_www.mnn.com 2015 01512.txt

Water from the blood is the catalysis that sets it fizzing. f you can get the particles in the general area of the wound,


texte_agro-tech\R_www.nanomagazine.co.uk_category&id=172&Itemid=158 2015 00162.txt

Imagine two river crossings, one with tightly-packed stepping-stones, and the other with large gaps between stones.


texte_agro-tech\R_www.nanotech-now.com 2015 01096.txt

researchers from North carolina State university and the University of North carolina-Chapel hill show that magnetic nanoparticles encased in oily liquid shells can bind together in water,

much like sand particles mixed with the right amount of water can form sandcastles.""Because oil and water don't mix,

the oil wets the particles and creates capillary bridges between them so that the particles stick together on contact,


texte_agro-tech\R_www.nanotech-now.com 2015 01216.txt

Crystal structures on the sea sapphire's back appear differently depending on the angle of reflection September 2nd, 2015using DNA origami to build nanodevices of the future September 1st,


texte_agro-tech\R_www.nanotech-now.com 2015 01274.txt

and the challenges that must be overcome to mak September 8th, 2015rice researchers demo solar water-splitting technology:


texte_agro-tech\R_www.nanowerk.com 2015 0000290.txt

#Desalination with nanoporous graphene membrane Less than 1 percent of Earth's water is drinkable. Removing salt and other minerals from our biggest available source of water--seawater--may help satisfy a growing global population thirsty for fresh water for drinking, farming, transportation, heating, cooling and industry.

But desalination is an energy-intensive process, which concerns those wanting to expand its application.

The results are published in the March 23 advance online issue of Nature Nanotechnology("Water Desalination Using Nanoporous Single-layer graphene"."

""Our work is a proof of principle that demonstrates how you can desalinate saltwater using freestanding,

"Current methods for purifying water include distillation and reverse osmosis. Distillation, or heating a mixture to extract volatile components that condense,

Without these holes, water cannot travel from one side of the membrane to the other.

The water molecules are simply too big to fit through graphene's fine mesh. But poke holes in the mesh that are just the right size

and water molecules can penetrate. Salt ions, in contrast, are larger than water molecules and cannot cross the membrane.

The porous membrane allows osmosis, or passage of a fluid through a semipermeable membrane into a solution in which the solvent is concentrated more."

"If you have saltwater on one side of a porous membrane and freshwater on the other,

and you push the water from the saltwater side to the freshwater side--that's the reverse osmosis process,

It takes significant pressure to push water from the saltwater side to the freshwater side."

so separated water would drive faster through the membrane under the same conditions, the scientists reasoned."

The prepared membrane separated two water solutions--salty water on one side, fresh on the other.

while water flowed through it from one chamber to the other. The membrane allowed rapid transport of water through the membrane and rejected nearly 100 percent of the salt ions, e g.,

, positively charged sodium atoms and negatively charged chloride atoms. To figure out the best pore size for desalination,


texte_agro-tech\R_www.nanowerk.com 2015 05246.txt

Imagine two river crossings, one with tightly-packed stepping-stones, and the other with large gaps between stones.


texte_agro-tech\R_www.nanowerk.com 2015 05503.txt

To achieve this, the researchers reacted glycerol with water, to provide the element hydrogen, and a magnesium oxide (Mgo) catalyst.

and water over such a simple catalyst gave such valuable products and interesting chemistry.""This research has the potential to transform the way in


texte_agro-tech\R_www.nanowerk.com 2015 05521.txt

what we believe is a large iceberg, Surendranath adds, since the basic ingredient is a dirt cheap material that we are modifying using well-known chemistry.


texte_agro-tech\R_www.nanowerk.com 2015 05649.txt

even after exposure to water. When wiped repeatedly with a towel, the new sunblock was removed entirely.


texte_agro-tech\R_www.optics.org 2015 00265.txt

and their electrons like a ship through water, producing a wake of oscillating electrons. This electron wave creates a trailing wave-shaped electric field structure on which the electrons surf and by


texte_agro-tech\R_www.popsci.com 2015 0000595.txt

#MIT Invention Turns Salt water Into Drinking water Using Solar power From plants to people, every living thing on this planet needs water.

Just look at the furor around California's new water restrictions. If a state as wealthy as California is having to get creative

in order to start saving water, you can bet that governments and municipalities with less money and clout are having to turn to even more inventive methods to get clean water without breaking the bank.

The idea was to create a system that could remove salt from water and meet three criteria:

The batteries then power a system that removes salt from the water through electrodialysis. On the most basic level, that means that dissolved salt particles,

are drawn out of the water when a small electrical current is applied. In addition to getting rid of salt

(which makes water unusable for crops and for drinking), the team also applied UV LIGHT to disinfect some of the water as it passed through the system.

Using the sun instead of fossil fuels to power a desalination plant isn't a totally new idea.

Larger solar desalination plants are being investigated seriously in areas where water is becoming a scarce resource,

While proponents hope to eventually could provide water to large numbers of people, the technology is still expensive (though prices are dropping)

The MIT/Jain team and their competitors tested their projects at the Brackish Groundwater National Desalination Research Facility in New Mexico,

removing salt from 2, 100 gallons of water each day. The next step is to test it in an even harsher environment,

the system could provide enough water to irrigate a small farm m


texte_agro-tech\R_www.popsci.com 2015 00298.txt

#Putting Sensors In Bridges And Tunnels Could Make Their Walls Talk Trying to get a building to tell you how it feeling is,


texte_agro-tech\R_www.postscapes.com_internet-of-things-news 2015 00126.txt

Vinduino As California fourth straight year of drought forces farmers to cut back on water use,

And while the Internet of things has brought a number of water-conscious smart irrigation products into the agricultural market,

Vinduino is Reinier van der Lee open-source solution to the challenge of cutting back on water use by 25 percent a voluntary measure that, for Van der Lee Vineyard

water pressure sensors and data loggers for controlling and monitoring the vineyard irrigation system. In prototype stage is networked a,

Vinduino uses three sensors at different depths to get a better handle on the way water moves through the soil at each measurement point.


texte_agro-tech\R_www.sciencealert.com 2015 01196.txt

#This new technology converts sea water into drinking water in minutes Purifying dirty water is a notoriously difficult and expensive process-even in California, financial pressures affect

which is why a newly invented and ultra-cheap water cleaning process is looking so promising.

Developed by a team of researchers at Alexandria University in Egypt, the procedure uses a desalination technique called pervaporation to remove the salt from sea water

The technique not only desalinates the seawater, it's capable of removing sewage and dirt from it too.

The researchers combined expertise in oceanography, chemical engineering, agricultural engineering and biosystems engineering to come up with the solution

and their work has now been published in the journal Water Science and Technology.""The technology implemented in the study is much better than reverse osmosis,

a professor of water contamination at Egypt National Research Centre, told Scidev. net.""It can effectively desalinate water with high concentration of salt like that of the Red sea, where desalination costs more and yields less."

"Unfortunately for those who are waiting for this type of technology, a lot of work is required before it can be put into action:

What's certain is that a new procedure like this could have a huge impact on the lives of millions of people-according to Water. org,


texte_agro-tech\R_www.sciencealert.com 2015 01255.txt

Just like water has a gaseous, liquid, and solid state, this magnet material displays physical phase transitions when gradually cooled right down to almost freezing."

The team calls this a"highly degenerate spin ice phase (Ice I)".But then they started to slowly cool the material down,

This is classified as the"charge-ordered phase (Ice II"."Cooled down even further, and the magnetic arrangement appeared to undergo another change-it was frozen almost, just like water.

They call this the"long-range charge-and spin-ordered (LRO) phase"."""We were fascinated by the fact that our synthetic material displayed this everyday phenomenon of a phase transition,


texte_agro-tech\R_www.sciencealert.com 2015 01281.txt

This new'thirsty'concrete absorbs 4, 000 litres of water in 60 seconds During the first few weeks of August 2007,

more than two-thirds was caused by water running off pavements or overflowing from drainage systems. So what's the solution?

We need to prevent all that water from accumulating on the surface of our roads and footpaths,

a new type of porous concrete that can absorb up to 4, 000 litres of water in the first 60 seconds,

which water can drain almost instantly. This is followed by an'attenuation layer, 'which feeds the water into a drainage system that connects with the city's groundwater reservoirs.

So don't worry all the water you can see pouring out in the video isn't being wasted-it's being fed straight back into the system for irrigation, drinking water, swimming pools,

and firefighting purposes. While permeable concrete has been around for the past 50 years, it's mostly been used under pavements to help with drainage,

"During periods of rising temperatures and intense rainfall, water stored within the system evaporates creating a cooling effect reducing surface temperatures,

If that water happens to freeze, the entire system would be destroyed, so the concrete can only be used in places where temperatures are never likely to dip that low,


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