Sentences with phrase «produced by a reaction»

The bubbles produced by the reaction are the carbon dioxide gas escaping the water.

The bubbles produced by the reaction are the carbon dioxide gas escaping the water.]

Hydrogen gas produced by reactions in the repository could build up pressure that leads to radioactive gases escaping through fractures in the rock.

Ozone is produced by reactions involving nitrogen oxides (NOx), which come primarily from motor vehicle emissions, and volatile organic compounds resulting from industrial processes.

The reaction combines the hydroxyl molecule (OH, produced by reaction of oxygen and water) and carbon monoxide (CO, a byproduct of incomplete fossil fuel combustion) to form hydrogen (H) and carbon dioxide (CO2, a «greenhouse gas» contributing to global warming), as well as heat.

photochemical smog a mix of photochemical oxidant air pollutants produced by the reaction of sunlight with primary air pollutants

Photochemical smog - A mix of photochemical oxidant air pollutants produced by the reaction of sunlight with primary air pollutants, especially hydrocarbons.

Hydrogen was produced by a reaction with sodium borohydride.

When atmospheric CO2 exchanges across the air — sea interface it reacts with seawater through a series of four chemical reactions that increase the concentrations of the carbon species: dissolved carbon dioxide (CO2 (aq)-RRB-, carbonic acid (H2CO3) and bicarbonate (HCO3 ---RRB- Hydrogen ions (H +) are produced by these reactions.

But in most cases, it is produced by a reaction involving a carbon - based fuel and atmospheric oxygen.

Not exact matches

For decades, he's been fascinated by reaction wood — a variety of wood produced in both conifers and broad - leaved trees.

The common trait shared by most viral content is the ability to produce a complex emotional reaction from an audience.

He is «grasped» by an imagined ideal with such force that it becomes an important motivating principle in his life, particularly in his relationships with other people in whom he seeks to produce a similar reaction, as he may or may not do in varying degrees depending upon their preparation for the message.

This refuge once known will produce reaction on the happiness even of those who remain there, by warning their task - masters that when the evils of Egyptian oppression became heavier than those of the abandonment of country, another Canaan is open where their subjects will be received as brothers and secured against like oppression by a participation in the right of self - government.

All zero calorie sweeteners are harmful because they produce the same reaction in the brain by overstimulating nuerons to death.

According to a study from the University of Maryland Medical Center, quercetin may reduce allergic reactions by stopping the body from producing histamines, which cause sneezing, crying and itching during a bout of allergies.

An allergic reaction can be produced by a tiny amount of a food ingredient that a person is sensitive to (for example a teaspoon of milk powder, a fragment of peanut or just one or two sesame seeds).

Vegetarian meat flavors can be produced by the Maillard reaction, the interaction of the amino acid components of protein with reducing sugar molecules when exposed to heat.

When you're in a stressful or dangerous situation, your body responds by producing hormones and chemicals as part of the «fight - or - flight» reaction (so named because that's exactly what the body is preparing itself to do — to either fight off the danger or run from it).

If there is a rice allergy, studies show that the allergy is most often to the pollen of the rice and a reaction is triggered by the inhalation of the pollen — rice is a grass and may produce hayfever like symptoms.

By the way, I did explain that the «volcano» is the result of a chemical reaction between the baking soda and the vinegar which produces carbon dioxide — leading to bubbles.

The Tory expenses stories may be smaller ticket items than the home «flipping» by Labour Cabinet members but like Mr Jacqui Smith's porn movies and bath plug they produce a more visceral reaction.

These cells produce antibodies in reaction to infections by bacteria, viruses and other invaders.

Further calculations by Catling and his team conclude that no abiotic methane sources on a rocky planet could produce enough of the gas to counteract this process — whether it is volcanic outgassing from a planet's interior, chemical reactions in hydrothermal vents, even asteroid impacts.

But the properties of these unbound nuclei can still be investigated by producing them in a nuclear reaction and detecting their decay products.

But if the water was produced by chemical reactions driven by the solar wind, it is much more recent.

It basically works this way: By providing a chemical reaction with two coherent pathways leading to the same possible final products, quantum - mechanical - interference effects can be produced.

The special thing about the new feedback mechanism, however, is that the body itself produces the signal, which is then detected by a sensor that triggers a fine - tuned therapeutic reaction.

RADIATION DETECTION EQUIPMENT Prove that you really achieved fusion by using a bubble dosimeter, which provides instant visual verification and measurement of neutrons produced by fusion reactions.

The team has produced the first nuclear physics reactions driven solely by laser light, Cowan reported here yesterday at a meeting of the American Physical Society.

New tests based on human biology can predict many adverse reactions that animal tests fail to do, and could, for example, have detected the risk signals produced by Vioxx, which in animal studies appeared to be safe, and even beneficial to the heart.

Toyohashi University of Technology researchers led by Associate Professor Shibatomi developed new catalytic reaction to produce chlorine - containing organic molecules in isomerically pure (left - or right - handed) form

Using one of the many compounds produced in enantiomeric purity by their new reaction, the research team synthesized Cathinone, a natural stimulant.

The water - gas shift reaction, in which carbon monoxide is removed from the fuel gas stream by reacting with water to produce carbon dioxide and hydrogen, is a key step in the process.

Fusion energy requires confining high energy particles, both those produced from fusion reactions and others injected by megawatt beams used to heat the plasma to fusion temperatures.

By modeling the reaction, they concluded that the initial energy burst could come from ultraviolet (UV) light, which produces energetic oxygen called singlet oxygen when it breaks up water molecules.

The fact that a rather benign mechanical mechanism such as a propagating sound field can produce atomic reactions is a quite remarkable and has attracted considerable scientific attention (see «The Chemical Effects of Ultrasound,» by Kenneth S. Suslick in Scientific American, Vol.

Whereas molecular gastronomy uses scientific techniques to induce weird and wonderful chemical transformations in traditional ingredients, note - by - note cooking goes a step further: it uses chemical reactions to produce meals from chemical compounds and cooking alone.

When the team brought the nanocrystals close to an alkaline phosphate - catalyzed reaction, they saw the violet emissions diminish in direct proportion to a chemical indicator produced by the enzyme.

About half the heat produced by Earth is thought to come from internal nuclear reactions, the other half from heat left over from Earth's earliest days as a red - hot planet.

They studied boulders from the New Zealand site where the glacial wood had been found, measuring the concentrations in the rocks of radioactive isotopes beryllium - 10 and chlorine - 36, which are produced by nuclear reactions between minerals and cosmic rays.

The team has designed these nanomotors to move using the spatial variations of the concentrations of chemical species that they produce themselves by means of chemical reactions on their surfaces.

Gantz and Bier developed a method they call mutagenic chain reaction (MCR) that autocatalytically produces homozygous mutations.

Previous research focused on ways to limit the ozone - damaging reactions produced by nonreactive aerosols.

One of the most ubiquitous is the «octet rule,» which states that each atom in a molecule that is produced by a chemical reaction will have eight outer orbiting electrons.

The team has now demonstrated that biodiesel can be quickly produced from waste cooking oil by direct ultrasonic irradiation with caustic soda, sodium hydroxide NaOH or potassium hydroxide (KOH) as the chemical catalysts for the process known as a transesterification reaction.

Researchers at Oregon State University have discovered novel compounds produced by certain types of chemical reactions — such as those found in vehicle exhaust or grilling meat — that are hundreds of times more mutagenic than their parent compounds which are known carcinogens.

NIF's ultimate goal is «ignition,» a self - sustaining reaction that produces more energy than was pumped into the target by the laser beams.

All commonly used medical radioisotopes can be produced without using nuclear reactors or enriching uranium, or can be replaced with other isotopes that can be produced without a fission reaction, or by alternative technologies.

Ammonia is currently made by a reaction between nitrogen and hydrogen, called the Haber - Bosch process, where hydrogen is produced from reforming natural gas.