The initial feedstock flows meet in a honeycomb catalyst carrier that can be designed for the efficient operation of both modes and mixing states.
Metallic honeycombs are used already as catalytic convertors of exhaust gas in cars. They are characterized by a high thermal conductivity and mechanical robustness with a low pressure loss during alternating operation modes.
The honeycomb catalyst can be implemented easily in various plant sizes. In the future it might be possible to efficiently operate even smaller decentralized units e g. at rural biogas facilities.
Thanks to the newly developed honeycomb catalyst also smaller and medium-sized plants can be operated efficiently y
Everyone is fairly certain antibiotic resistance comes from extensive use of antibiotics in animal-based agriculture.
features fermentation and ethanol yields that set a new standard for conversion of biomass sugars from pretreated corn stover--the non-edible portion of corn crops such as the stalk--converting up to 97 percent
"Although cellulosic biomass such as corn stover, wheat straw and bagasse (the fibrous remains after sugar is extracted from sugarcane
'The research was funded by NC State start-up funds, the North carolina Agriculture Foundation and Dupont Nutrition and Health h
#New honeycomb-inspired design delivers superior protection from impact The technology could have major implications for the design
Conventional honeycomb structures are insular panels of repeating, often hexagonal-shaped cells in a range of sizes and configurations.
The shortcoming of conventional honeycombs is that they lose their full protective properties after only one impact due to plastic buckling of the material.
NS honeycombs, on the other hand, bounce back. The researchers devised a cell geometry capable of elastic buckling, giving NS honeycomb structures the resilience to recover their energy-absorbing shape and properties after impact.
The researchers manufactured 3. 5-inch NS honeycomb structures, as well as miniature NS honeycomb cells, from nylon using selective laser sintering for experimentation.
NS honeycombs can be made from a variety of materials to suit distinct applications. Subsequent custom compression and drop tests, designed
and fabricated at UT Austin, have confirmed the NS honeycomb structures'predicted energy-absorbing behavior and resilience.
That funding and additional collaboration with the Maritime Applied Physics Corporation, an engineering company that frequently partners with the U s. military, helped support the advancement of NS honeycomb technology.
The researchers are also building a lab prototype of an enhanced combat helmet with NS honeycomb cells integrated that will be completed this fall.
%The novel concept was tested successfully in experiments at the Institute of Vegetable and Ornamental Crops (IGZ.
Dr. Ho offers the example of honeybees as among the starkest examples of how epigenomics affects cellular function and an organism's fate.
In feeding a larval honeybee with copious amounts of a richly nutritious secretion called royal jelly,
including the sugar in maize and sugarcane. Fermentation turns the sugar into lactic acid, which in turn is a building block for polylactic acid.
the technology also has potential in applications that harvest the sun's energy with high efficiency. In addition, Yu envisions simply letting the resonator emit that energy in the form of infrared light toward the sky,
#Farming Now Worse for Climate Than Clearing Forests Efforts such as these to slow deforestation have delivered some of humanity few gains in its otherwise lackadaisical battle so far against global warming.
Now farmers and loggers were being arrested by armed police, accused of environmental crimes. t was a radical operation,
A new study describes how this trend has seen agriculture overtake deforestation as the leading source of land-based greenhouse gas pollution during the past decade.
Clearcutting most often clears space for agriculture, suggesting agriculture indirect climate impacts surpass the impacts of deforestation for timber and other commodities.
The researchers aim to tally those indirect impacts later this year. This paper was an early step in a larger effort to better understand
Burning fuel produces about four times more climate pollution every year than forestry and agriculture combined figure that is growing.
Greenhouse gases released by farming, such as methane from livestock and rice paddies, and nitrous oxides from fertilizers and other soil treatments rose 13 percent after 1990, the study concluded.
that livestock are blamed for two-thirds of agriculture climate pollution every year. ee seeing an expansion of agricultural lands in some areas because of the growing global population,
said. ee also seeing intensification of agriculture. Although annual climate pollution from deforestation is declining,
as farmers and loggers rushed to exploit loopholes in forest protection laws. Some parts of Central africa are seeing deforestation in areas where it was not previously a problem.
but agriculture is discussed barely during the talks. here been a lot of discussion back and forth, and perhaps a good deal of polemic, about REDD, Steve Schwartzman, director of tropical forest policy at the Environmental defense Fund, said. ut, over time,
Agriculture has only come onto the agenda more recently. Some countries, particularly India, have been averse to discussing agricultural impacts during U n. climate negotiationsargely
Doug Boucher, the director of climate research at the Union of Concerned Scientists, says agriculture climate impacts could be reduced without taking food off tables.
The biggest opportunities for reforming agriculture climate impacts can sometimes be found miles from where any food is grown.
state officials the first cutback to farmers'water rights since 1977, and ordered cities and towns to cut water use by as much as 36 percent.
but some farmers are already ignoring the new rules, or challenging them in court. The drought shows no sign of letting up any time soon,
Explosive urban growth matched with the steady planting of water-thirsty crops which use the majority of the water don't help.
Arcane laws actually encourage farmers to take even more water from the Colorado river and from California's rivers than they actually need,
and federal subsidies encourage farmers to plant some of the crops that use the most water.
but there are all kinds of agriculture efficiencies that have not been put into place.""While there are mixed views on
the fact remains that agriculture uses the most water, by far. Farming and agriculture use more than 70 percent of the water that flows from the Colorado river to the seven river basin states.
In addition to those crops, cotton is one of the thirstiest crops a farmer can grow, especially in a desert.
As it happens, many of the crops that use less water entitle farmers to fewer federal subsidies,
and so farmers don't have much of an incentive to switch crops. Though cotton production has dropped steeply in California
since 1995, California farmers have gotten $3 billion in federal subsidies to grow it. On top of subsidies,"Use it or Lose it"clauses in state water laws actually encourage farmers to flood their fields with much more water than they need
lest they lose the right to that amount of water in the future. Urban development is also a big factor.
Las vegas has grown faster than any other city in the West, its footprint doubling in the past 25 years as more and more people have moved there.
and creative ad campaigns are finding varying degrees of success. The state has cut deliveries of water to farmers through the state and federal aqueduct systems,
or by capturing shower water from inside for their gardens outside, for instance. The drought has inspired also innovation in water conservation for restaurants, pools and lawns.
providing a substantial supply for both L a. and San diego. The All-American Canal moves water along the tail-end of the Colorado river near the Mexican border, nourishing one of the state's most valuable agriculture areas,
and Dairy cows and chickens and other animals eat a lot of crops, which in turn require a lot of water.
Some research has suggested that the country's meat industries create such a high demand for water-thirsty feed crops, that if every American ate meat one less day a week,
farmers and others who use recombinant proteins could also achieve more bang for their buck. UCI has filed for a patent on the work,
while perovskite cells harvest only the visible part of the solar spectrum where the photons have more energy.
#Boutique bread just a gene away for Aussie farmers Australian farmers can look forward to growing a boutique,
Scientists at UQ Queensland Alliance for Agriculture and Food Innovation (QAAFI) have identified a hereditary component in wheat that is essential for anyone hoping to consistently make premium-quality bread.
Queensland grain growers have for many years produced wheat varieties classified as rime hard wheatbecause these were suited to the production of good-quality bread. he precise reason for the difference in the quality of the rime hard wheathas long been a mystery,
Wheat is one of the most important cereal crops in the world, with global production of about 650 million tonnes and consumption in a variety of breads across different countries and cultures. rowing global demand for wheat requires ongoing genetic improvement to adapt to changing environmental conditions,
Professor Henry said. owever new wheat varieties must retain the essential quality characteristics of wheat. heat varieties are assessed normally for bread-making quality by conducting a baking test. his is only possible late in the breeding process
Professor Henry and his colleagues are eager to produce new premium wheat varieties. he good news is that premium wheats attract better prices so this discovery potentially means more dollars for Australian farmers.
AAFI scientists expect to exploit the bread-quality gene by developing improved wheat varieties using speed-breeding technologies that allow multiple generations of different varieties to be grown quickly
as well as disease/drought resistance that also include the bread-quality gene, he said. sing the speed-breeding technology developed by QAAFI Dr Lee Hickey,
a layer of silicon single atoms arranged in a honeycomb pattern that was fabricated first by researchers at UOW Institute for Superconducting and Electronic Materials (ISEM) and their partners in Europe and China.
because silicon always adopt diamond-like structure but not honeycomb structures, he said. t also very unstable when exposed to oxygen.
#Small changes have large benefits for crop breeding Researchers from The University of Western australia have developed a new method for breeding crops that will improve the potential for long-term, sustainable genetic improvement.
In a world first, Professor Wallace Cowling from The UWA Institute of Agriculture and his team have taken the breeding model commonly used by animal breeders,
and implemented it in self-pollinating crops. Self-pollinating crops, or elfingcrops, are plants that are normally fertilised from their own pollen.
Self-pollinating crops such as rice, wheat and other cereals, soy beans and certain vegetable-derived oils
account for more than 60 per cent of world food calories for human consumption. Farmers are used to saving the seed of wheat and other crops such as lupin,
field pea and chickpea, knowing that the harvested seed is identical to the sown seed as a result of selfing.
as proposed in Professor Cowling model for selfing crops, means there can be more accurate selection and shorter generation intervals with more sustainable long-term genetic improvement.
and recombination in self-pollinating crops normally occurs after selfing and selection of pure lines. n our research we changed the breeding process to allow rossing before selfingrather than elfing before crossing,
a chemical engineer with joint appointments at Berkeley Lab and UC Berkeley. he recyclable catalysts we developed are capable of converting sugarcane biomass into a new class of aviation fuel and lubricants with superior cold
The process developed at EBI can be used to selectively upgrade alkyl methyl ketones derived from sugarcane biomass into trimer condensates with better than 95-percent yields.
the fibrous residue that remains after juice is extracted from sugarcane stalk, into fuels and other products.
Although the goal of this study was to develop a strategy for the flexible production of jet fuels and lubricant base oils in a Brazilian sugarcane refinery,
bioengineering professor one of authors of the study, said that you just have to mix honey
despite being made from honey in the microwave, are very useful indeed. They can be used to carry a variety of different drugs into a human body.
In one case the scientists tested three different honeycomb structures made up of the same basic cell.
two of the three honeycomb structures moved preferentially in one direction but formed different new cell geometries in the process.
says Dunlop. Synthetic polymer honeycomb structures from a 3d printerthe composition of the cell walls plays a key role in the expansion process in the relevant cells of pinecones
The nanogenerator harvests the wasted tire friction energy by relying on the triboelectric effect. It is the electric charge that results from the contact or rubbing together of two dissimilar objects.
The friction was strong enough for the electrodes to harvest enough energy to power the lights,
greener and safer nanotechnology and could lead to enhanced efficiency of antimicrobial products used in agriculture and personal care.
killing only that bug species on crops and avoiding collateral damage to beneficial insects caused by today pesticides.
whether an RNA-insecticide spray would be stable enough to use in agriculture. The researchers matched double-stranded (ds) RNA to an actin gene in Colorado potato beetle
a leading potato pest that inflicts $100 million per year in costs to North american farmers and also damages tomato and other plants.
The idea for crop protection was born out of this technology. As part of the study, Scott and San miguel put a film of ds RNA on plate glass
including Christer Jansson, director of plant sciences at the Department of energy Pacific Northwest National Laboratory and EMSL, DOE Environmental Molecular Sciences Laboratory.
Over three years of field studies in China, researchers consistently demonstrated that SUSIBA2 delivered increased crop yields and a near elimination of methane emissions f
gardens and parking lots are all viable launchpads. In fact, Martin believes that the jetpack ability to land in confined spaces will be its selling point,
a professor of biochemistry in the College of Agriculture and Life sciences. There's so much information to sift through that it was simply too daunting of a numbers game.
but also to deploy technology developed by Mars on soil management and water quality.""When Donowitz learned of Finette
< Back - Next >
Overtext Web Module V3.0 Alpha
Copyright Semantic-Knowledge, 1994-2011