noun
COLLOCATIONS FROM OTHER ENTRIES
a nuclear/hydrogen bomb
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The North Koreans were developing a nuclear bomb.
hydrogen bomb
hydrogen peroxide
COLLOCATIONS FROM CORPUS
■ ADJECTIVE
liquid
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These micro-refrigerators are commercially available, and avoid the explosion hazard of liquid hydrogen and the expense of liquid helium.
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We then start to accumulate liquid hydrogen in an empty fuel tank.
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Driving these cells were the contents of two liquid oxygen tanks and two liquid hydrogen tanks.
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Since most of the mass of Uranus air is hydrogen , most of the output from the refrigeration system is liquid hydrogen.
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Thus, this mission is so demanding that we are forced to use liquid hydrogen as the propellant.
metallic
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What had started out as a quest for metallic hydrogen now became a serious hunt for fusion.
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This incredibly dense, hot soup of protons and electrons is called fluid metallic hydrogen .
molecular
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Figure 9.9 shows the measured phase-diagram of molecular hydrogen .
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The equation of state of molecular hydrogen at high pressures and temperatures is particularly important and yet it is poorly known.
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These bacteria use molecular hydrogen as well as other electron donors, for the dissimilatory reduction of sulphate to sulphide.
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The extreme ultraviolet power was only a few watts, but it was adequate to detect molecular hydrogen .
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These studies confidently predict that at any plausible temperatures in Jupiter no solid molecular hydrogen surface is encountered.
■ NOUN
atom
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By supplying addition molecules of chlorine it is possible to replace all the hydrogen atoms .
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The optimum proportions of hydrogen and oxygen are thus two hydrogen atoms per oxygen atom, exactly the same as in water.
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This is about the energy that would be released if a hydrogen atom could be totally converted into energy.
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A methyl group is a carbon with three hydrogen atoms attached.
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One of the hydrogen atoms in ammonia is replaced by a benzene ring.
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Instantly, one of the hydrogen atoms on the ethanol molecule is ripped off.
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It consists of a chain of carbon atoms , with one hydrogen atom attached to each carbon.
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The microcosm becomes the macrocosm: the key to the whole universe may well be hidden in one hydrogen atom .
bomb
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The large scale release of fusion energy has so far occurred only in stars and in the hydrogen bomb .
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On 12 July 1953, when the Soviet Union exploded its first hydrogen bomb , equilibrium was restored.
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Might it not be the equivalent of a small hydrogen bomb ?
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The main source of helium-3 is in fact hydrogen bomb recycling!
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The heat released in this reaction, which is like a controlled hydrogen bomb explosion, is what makes the star shine.
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The largest accessible source of helium-3 on Earth is from the decay of tritium in hydrogen bombs .
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In spite of the situation we find ourselves in, maybe hydrogen bombs aren't the biggest cause for concern.
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The Soviet Union tested its own hydrogen bomb within a year, and the nuclear arms race escalated further.
bond
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Glutamic acid 170 forms the final main-chain hydrogen bond in the molecule.
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Glu115 also forms hydrogen bonds to His118 and to Asp84, and Glu238 hydrogen-bonds to Glu204.
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This allows hydrogen bonds to reform.
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Protein residues in contact are also shown, with hydrogen bonds as dotted lines.
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Distortions due to the formation of hydrogen bonds are usually smaller than those due to co-ordination to metal ions.
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There are no main-chain hydrogen bonds to the metal ligand side chains.
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For clarity, the three hydrogen bonds mentioned in the text are not illustrated.
bonding
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The transient nature of the binding may be because this sequence is recognized on account of its structure without additional hydrogen bonding contacts.
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These unusual chemical shifts for imino and amino protons are indicative of novel hydrogen bonding .
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It is now believed that the peculiar properties of water are due to what is known as hydrogen bonding .
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The energy of this hydrogen bonding is comparable to that of the torsion-angle strain.
breath
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After ingestion of sucrose, breath hydrogen was measured at 20 minute intervals for 160 minutes.
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If during this period breath hydrogen increased by 100% or more the test was considered abnormal.
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If after four hours no such a rise in breath hydrogen occurred, the transit time was recorded as 240 minutes.
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The mean breath hydrogen curves after acarbose, miglitol, and placebo are shown in Figure 1.
gas
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Subsequent detailed analyses of the motions of the atomic hydrogen gas in the plane supported this proposal.
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The very same process, operating on water instead of carbon dioxide, makes oxygen and hydrogen gas .
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Anhydrous caustic soda, hydrogen gas and phosgene, all well established product areas, are being developed to produce maximum returns.
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The cells will drive electric motors and use on-board hydrogen gas as fuel.
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The hydrogen gas would be collected within the galls and piped to a central storage system.
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Fresh hydrogen gas is charged to the inlet of the reactor to balance consumption.
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The whole system is rich in hydrogen gas .
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The gas phase is recycled to the reactor inlet to provide a large excess of hydrogen gas in the catalytic reaction zone.
ion
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Proton concentrations for each sample were then calculated from the hydrogen ion activity and the combined sodium and potassium concentrations.
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Treatment is aimed at decreasing hydrogen ion loss.
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The principal body electrolytes are sodium, potassium and hydrogen ions .
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Diuretics should be stopped, if possible, to decrease renal hydrogen ion loss.
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Bennett and Williams suggest that the cells of opening or closing traps acidify their own walls by releasing hydrogen ions .
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This is a symbol expressing hydrogen ion concentration in a solution; it is a measure of relative acidity or alkalinity.
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The timing of active hydrogen ion secretion, however, remains unknown.
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Hypocapnia causes fewer hydrogen ions to be available for secretion in the renal tubular cell.
peroxide
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A biochemist colleague has kindly provided me with a bottle of hydrogen peroxide , and enough hydroquinone for 50 bombardier beetles.
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Ultraviolet light, hydrogen peroxide and ozone assure crystal-clear, clean water.
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Abrasions are sprayed with hydrogen peroxide .
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I poured the hydrogen peroxide into the hydroquinone, and absolutely nothing happened.
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But hydrogen peroxide and hydroquinone don't react violently together unless a catalyst is added.
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The variability of patterns resulting from the use of different volumes of hydrogen peroxide also argued against further use of this technique.
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This method is used for the reactions of metals and acids and the decomposition of hydrogen peroxide .
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Finally, we should comment on the relative abundance of ozone and hydrogen peroxide at Cape Grim.
sulfide
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The first primitive forms of life consumed various materials, including hydrogen sulfide , and released oxygen.
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If hydrogen sulfide or some other poisonous gas is detected, Donahue dons an airtight breathing device and a hard hat.
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Vent water is enriched in reduced chemical compounds, especially hydrogen sulfide .
sulphide
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Sulphur bacteria may be present below the anoxic zone, reducing sulphate ions and liberating hydrogen sulphide .
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So the sewage goes septic, giving off hydrogen sulphide which corrodes the pipes and makes a nasty smell.
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These included methane, ammonia, probably hydrogen cyanide, hydrogen sulphide and carbon monoxide.
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Instead of splitting hydrogen sulphide , they developed the ability to split water by first trapping solar energy in green pigments.
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The outlet can contain nitrite or hydrogen sulphide .
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Gas compositions are normalised to exclude hydrogen sulphide because of poor analytical reproducibility for this gas.
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Apparently they were thriving on hydrogen sulphide from the rotting beams of the ship.
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Later in the spoilage process other components, such as the sulphurous notes from hydrogen sulphide , may add to the smell.
■ VERB
contain
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Like Green's compound, this iridium compound contains two hydrogen atoms that can be eliminated by light.
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Scientists assume that those planets' high-pressure cores contain metal hydrogen .
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Carbohydrates in pure form contain only carbon, hydrogen , and oxygen.
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The outlet can contain nitrite or hydrogen sulphide.
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In general coals contain carbon, hydrogen , oxygen, nitrogen and sulphur with various other trace elements.
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Nucleic acids contain carbon, hydrogen , oxygen, nitrogen, and phosphorus.
form
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Glu115 also forms hydrogen bonds to His118 and to Asp84, and Glu238 hydrogen-bonds to Glu204.
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In any plausible way of forming Jupiter the hydrogen and helium are initially well mixed at a molecular level.
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Charged residues are only occasionally found in the interior, where they form hydrogen bonds to oppositely charged residues or main-chain atoms.
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These polymers can form intermolecular hydrogen bonds which greatly enhance crystallite stability.
produce
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However, at present, the economics of using solar-produced electricity to produce hydrogen from water by electrolysis are poor.
use
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These bacteria use molecular hydrogen as well as other electron donors, for the dissimilatory reduction of sulphate to sulphide.
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The cells will drive electric motors and use on-board hydrogen gas as fuel.
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For comparison with the alkaline phosphatase technique, we used 100 µl of hydrogen peroxide.
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Thus, this mission is so demanding that we are forced to use liquid hydrogen as the propellant.
EXAMPLES FROM CORPUS
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A biochemist colleague has kindly provided me with a bottle of hydrogen peroxide, and enough hydroquinone for 50 bombardier beetles.
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Expressed as the proportion of carbon to hydrogen , fuelwood is roughly 91 percent carbon.
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For all they know, metal hydrogen may always be unstable and quickly vaporize.
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In this case the presence of oxygen and hydrogen mixed in the optimum proportions, could well have compounded the effect.
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The large scale release of fusion energy has so far occurred only in stars and in the hydrogen bomb.
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The transient nature of the binding may be because this sequence is recognized on account of its structure without additional hydrogen bonding contacts.
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The vaporized gasoline is processed into hydrogen , water and carbon dioxide.
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Ultraviolet light, hydrogen peroxide and ozone assure crystal-clear, clean water.