Sentences with phrase «oxygen production»

CO2, a gas essential to plant life for oxygen production and thereby life on earth became a toxic substance.

Does this affect oxygen production, and in turn cause any problems for local wildlife?

The team presents new isotopic data showing that a burst of oxygen production by photosynthetic cyanobacteria temporarily increased oxygen concentrations in Earth's atmosphere.

Dynamic molecular oxygen production in cometary comae.

AOI 2: Lower - cost Oxygen Production Systems.

«That is because oxygen production is ultimately tied to the global carbon cycle — the cycling of carbon between Earth, the biosphere, the atmosphere and oceans.»

However, a new picture is emerging: Oxygen production by photosynthetic cyanobacteria may have initiated as early as 3 billion years ago, with oxygen concentrations in the atmosphere potentially rising and falling episodically over many hundreds of millions of years, reflecting the balance between its varying photosynthetic production and its consumption through reaction with reduced compounds such as hydrogen gas.

The first two — Coal Feed Technologies - Low - rank Coal Feed or Coal - woody Biomass Feed Technologies; and Lower - cost Oxygen Production Systems — will look to further develop and expand on concepts already included in the Gasification Systems Program that will significantly reduce gasification's capital and operating costs.

Because they are some guy (or gal's) business, each tree that gets cut down for Christmas gets another one planted in its stead and the cycle of oxygen production continues.

The path to understanding how a nutrient dearth would starve out breathable oxygen production leads back to a very special kind of bacteria called cyanobacteria, the mother of oxygen on Earth.

«Oxygen production from TiO2 - enhanced lunar soils could potentially make breathable oxygen and even oxidiser for rocket fuel.»

Tübingen geomicrobiologists Dr. Elizabeth Swanner and Professor Andreas Kappler say that after evolution of the first cyanobacteria, one would expect a rapid and massive oxygen production, i.e. cyanobacteria could have produced much more oxygen much sooner.

In addition, the connection between iron levels and oxygen production found here will help researchers to reconstruct the long - term processes behind the evolution of animals — which need high levels of oxygen.

«Understanding the evolutionary trajectory that nature used to create oxygen production in photosynthesis is one component that will help scientists design an efficient and effective system.

These elegant, microscopic creatures perform half of the photosynthesis and consequent oxygen production on Earth.

Single - cell phytoplankton in the ocean are responsible for roughly half of global oxygen production, despite vast tracts of the open ocean that are devoid of life - sustaining nutrients.

Although Marchetti and his team do not definitively know yet whether this protein can actually result in carbon dioxide uptake in these phytoplankton, called diatoms, they do know that the proteorhodopsin would unlikely result in generating oxygen, which could alter the carbon - dioxide uptake to oxygen production ratio in iron - limited regions of the oceans.

In order to test their newfound oxygen production system, the researchers injected cyanobacteria in the hearts of live but anesthetized mice that suffered from cardiac ischemia — the condition which refers to the lack of blood and oxygen flow to the heart muscles.

«Since the photoelectrochemical cell is built for the purpose of hydrogen production and HMF oxidation simply replaces oxygen production at the anode, in essence, no resources are used specifically for HMF oxidation,» says Choi.

The authors outline a simple mechanism by which the ratio of oxygen - 18 to oxygen - 16 tracks the median latitude of terrestrial oxygen production.

Develop advanced oxygen production systems for use in gasification plants that will result in a significantly lower cost compared to conventional processes for applications to produce power with carbon capture or liquid fuels with carbon capture.

Marine microorganisms that drive many global ocean processes (e.g. oxygen production, primary productivity and biogeochemical cycling) are able to adapt to ocean acidification [49].

Prof. Jeong Min Baik of UNIST (School of Materials Science and Engineering) said that while several attempts have been made to use UV - based photoelectrodes for hydrogen production, the new photoelectrode represents the first use of the metal - dielectric hybrid - structured film with TiO2 for oxygen production.

The past record was 320 millivolts, but the new catalysts only needed between 270 and 290 millivolts of overpotential to reach the same level of oxygen production.

An oxygen production demonstration is of particular interest to NASA's human exploration and science - led directorates.

Lee said the team's model showed that volcanic activity and other geologic inputs of carbon into the atmosphere may have increased with time, and because oxygen production is tied to carbon production, oxygen production also must increase.

This oxygen production is balanced by the sink: reaction of oxygen with iron and sulfur in Earth's crust and by back - reaction with organic carbon.

«There is a growing body of data that points to oxygen production and accumulation in the ocean and atmosphere long before the GOE,» said Timothy W. Lyons, a professor of biogeochemistry in the Department of Earth Sciences and the lead author of the comprehensive synthesis of more than a decade's worth of study within and outside his research group.

With respect to ecological cycles in the ocean, this shift would influence algae, their oxygen production, and ability to take up CO2 from the atmosphere.

Above, we were running our cell at 3mA, and this current is directly proportional to the rate of hydrogen and oxygen production.

At one I ran an experiment by decimating my own solar panels, oxygen production and greenhouses, leaving my colony massively in the red for electricity, oxygen and food.

What does it take in terms of climate change / CO2 concentration to trigger a large reduction in the ocean's oxygen production?

Oxygen production and all?

Using modern spatiotemporal records of oxygen production and oxygen isotopes in terrestrial precipitation, the authors demonstrate that their proposed relationship is robust over the modern seasonal cycle.

Surprisingly, most of the production of CO2 in the atmosphere comes from rain forests and jungles which provide no appreciable benefits to the atmosphere (all oxygen production in rain forests is used by the rain forests.

Beside the benefits of bio-fuel and oxygen production, we consider their architectural appearance as an added value primarily to the conscience of the city inhabitants.

Incorrect, those feedback mechanism, along with the negative feedback mechanisms (warmer planet leading to moister air leading to more clouds, more CO2 leading to more rapid plant growth leading to more absorption of CO2 and Oxygen production, etc) are already accounted for in the climate sensativity measurements.