Search results

...[[Joseph-Louis Gay-Lussac]] developed a tower that recovered most of the [[nitrogen oxide]] gases formed and reduced the consumption of nitrate. The first Gay- ...se. However, it produced the hazardous byproducts [[hydrochloric acid]], [[nitrogen oxides]], [[sulphur]] and [[chlorine]] gas. In 1811, Augustine Jean Fresnel

How many moles of nitrogen are present in a 50 L tank at 25 °C when the pressure is 10 atm? Numbers

...ovide most of the greenhouse. Common homonuclear diatomic gases, such as [[nitrogen]] (N₂) and [[oxygen]] (O₂), do not afford dipole tran

...a'' as the carbon and energy source. The effects of altering the carbon to nitrogen ratio and level are tested in relation to the accumulation of the product P ...bon was held constant, showing that the highest PHA content was found when nitrogen concentration was the lowest.

...clinical syndrome; the [[glomerular filtration rate]] (GFR), [[blood urea nitrogen]], and [[creatinine]] do not always correlate to the severity of disease. <

As a more complex example, the [[concentration]] of [[nitrogen oxides]] (i.e., NOx) in the [[flue gas]] from an industrial [[furnace]] can

...x) into more harmless gases like [[carbon dioxide]] (CO₂) and [[nitrogen]] (N₂). Metals (solids) like [[platinum]] (Pt), [[palladium]] (P ...um refineries]] is subject to irreversible deactivation by [[sulphur]], [[nitrogen]] and [[arsenic]] compounds. Because of that, the [[petroleum naphtha]] fee

...or general terms and one-place predicates like "is [[red]]" or "contains [[nitrogen]]", and unlike other explanations - realist or nominalist - [[set theory]]

...of gases we call "air". On a dry volume basis, it consists of about 78% [[nitrogen]] and 21% [[oxygen]]. The remainder of about 1% contains [[argon]], [[carbo |[[Nitrogen]]|| align="center"|N₂|| align="center"| 78.084|| align="center"|

<tr><td> N <td> [[Nitrogen]] <td align="right"> 7

...X chemical bond, where C is a [[carbon]] [[atom]] and X is a sulfur (S), [[nitrogen]] (N) or [[oxygen]] (O) atom. The net result of a hydrogenolysis reaction i The hydrogenolysis reaction is also used to reduce the nitrogen content of a petroleum stream and, in that case, is referred to '''Hydroden

...carbohydrates]] and [[hydrocarbons]], to [[oxygen]] in [[water]], and to [[nitrogen]] in [[ammonia]]. Measured in number of atoms, hydrogen is the third most a ...fixation]] process). The produced ammonia is used for the manufacturing of nitrogen-containing fertilizers.

<tr><td>7 <td>N <td>[[Nitrogen]] <td bgcolor="#D0D0D0">2 <td bgcolor="#D0D0D0">2<td>3

...s of air pollutants such as [[particulate matter]], [[carbon monoxide]], [[nitrogen oxide]]s, and [[sulfur oxide]]s in the form of gaseous [[sulfur dioxide]] (

...tions of 760 mm Hg. The pilobolus decays the feces of the animal using the nitrogen, water etc. found in the feces as its source of food. Once the nutrients in ...not utilize all these nutrients in the animal feces it is dependent on the nitrogen source found in the dung of animals as it food source. It also needs the wa

...[[oxidative stress]] initiated by [[reactive oxygen species]], [[reactive nitrogen species]], and other oxidant constituents of cigarette smoke.

...X chemical bond, where C is a [[carbon]] [[atom]] and X is a sulfur (S), [[nitrogen]] (N) or [[oxygen]] (O) atom. The net result of a hydrogenolysis reaction i The hydrogenolysis reaction is also used to reduce the nitrogen content of a petroleum stream and, in that case, is referred to '''Hydroden

...responsible for the first isolation and description of both nitrifying and nitrogen-fixing bacteria. ...brid system]]. Microbes play vital roles in geochemical cycles such as the Nitrogen-cycle.

...le amounts of ozone, [[reactive hydrocarbon]]s, [[nitrogen oxide]] (NO), [[nitrogen dioxide]] (NO₂), [[aldehyde]]s, [[peroxyacetyl nitrate]] (PAN), ...gines fuelled by [[gasoline]] and [[diesel oil]]. To a much lesser extent, nitrogen oxide is also emitted from industrial [[combustion]] sources, and reactive

High nitrogen content, host plant moisture, and 20°C of night temperatures favors the di - Excess nitrogen fertilizer can facilitate the disease progression, whereas silica limits th

...beled with short-lived positron-emitting radionuclides (such as carbon-11, nitrogen-13, oxygen-15 and fluorine-18) to measure cell metabolism. It has been usef

...lign="left "> 7 <td> [[Nitrogen|N]] <td width="5%" > {{Atomic mass|Nitrogen}} <td width="15%"> <td align="left "> 44 <td> [[Ruthenium|Ru]] <td w

...rst six chemical elements, hydrogen, [[helium]], [[lithium]], [[boron]], [[nitrogen]] and [[carbon]] have 1, 2, 3, 4, 5 and 6 protons, respectively, as well as

...live in it. Rutherford called this gas (which we now know would be mainly nitrogen) “noxious air” or “phlogisticated air”.<ref>[http://books.google.co

...n of steam then converts the nitrosulfuric acid to sulfuric acid liberates nitrogen oxides, which can be reused in the first step of the reaction.

...diet might be prescribed conventionally as part of treatment, such as low-nitrogen in renal failure or gluten-free in the presence of gluten allergy. Some die

...[[air quality]] pollutants such as [[sulfur dioxide]] (SO₂), [[nitrogen oxides]] (NO_x), [[particulate matter]], [[carbon monoxide]] (CO)

...pect. In general, coal consists of [[carbon]], [[hydrogen]], [[oxygen]], [[nitrogen]], [[sulphur]] and [[mineral]] matter (including compounds of [[silicon]], ...rganic]] and [[inorganic chemistry|inorganic]] gases containing sulfur and nitrogen.

...of oxymorphone, differing from oxymorphone in that the methyl group on the nitrogen atom is replaced by an allyl group.<ref>[http://www.drugs.com/pro/naloxone.

<tr> <td>[[Nitrogen]]-14</td> <td>¹⁴N</td> <td>1</td> <td>0.000998</td> <tr> <td>Nitrogen-15</td> <td>¹⁵N</td> <td>-1/2</td> <td>3.84E-06</td>

...water and ion concentrations of the [[blood plasma]]. Besides excreting [[nitrogen]] compounds, [[toxins]], water, and [[electrolytes]], kidneys also act as e

<tr><td>N_H</td><td>amide nitrogen</td> ...= HNCACB, a High-Sensitivy 3D NMR Experiment to Correlate Amide-Proton and Nitrogen Resonances with the Alpha- and Beta-Carbon Resonances in Proteins | journal

...ding the organic compound [[Urea]] that serves as an important source of [[nitrogen]]. Nahshon Nahshonov traded a quantity of 1.5 million tons of [[Urea]] duri

...was the first to propose that the gaseous elements, hydrogen, oxygen, and nitrogen, are diatomic molecules. He deduces that a molecule of water contains a mol ...nds. From the latter he estimated the size of the air molecules oxygen and nitrogen. His value 0.969 nm was a factor three too high, and since his equation for

...s solution "carbonic acid"), silica (silicon dioxide), nitrogen oxide and nitrogen dioxide, nitrate (NO₃^- in nitric acid and its salts),

...nd [[hydrogen]], which may contain any number of other elements, such as [[nitrogen]], [[oxygen]], [[halogens]], and more rarely [[phosphorus]] or [[sulphur]] ...t often nitrogen, and the heterocyclics of live systems are compounds with nitrogen. Examples of groups among the heterocyclics are the [[aniline dye]]s, the g

...per second|m/s]]. [[Attitude control]] was achieved by 12 small compressed-nitrogen jets. An acquisition [[Sun sensor]], a cruise Sun sensor, a Canopus [[star

...ture is reflected in the systematic name, ''2-([[acetyl]][[oxygen|oxy]])-[[Nitrogen|N,N,N]]-[[3 (number)|tri]][[methyl]][[ethane|ethan]][[amine|aminium]]''.

...silicon and sulphur), neutral elements (most of which is hydrogen, helium, nitrogen, oxygen, neon and argon) and condensed dust grains (primarily aluminium, ca

...[[Triton (moon)|Triton]], is geologically active, with geysers of [[liquid nitrogen]].<ref>{{cite web|title=The Plausibility of Boiling Geysers on Triton|autho

...in tissue sections can sometimes be stored almost indefinitely at [[liquid nitrogen]] temperature ([[cryopreservation]]). Human sperm, eggs and [[embryo]]s are ...ure between &minus;30°C and &minus;40°C before being plunged into [[liquid nitrogen]].

...dary amines (of the form R-NH-R), the longest carbon chain attached to the nitrogen atom becomes the primary name of the amine; the other chain is prefixed as ...s are treated similarly to the case of amines: alkane chains bonded to the nitrogen atom are treated as substituents with the location prefix ''N'': HCON(CH<su

* An [[Ammonium]] ion is made up of one nitrogen atom and four hydrogen atoms: its Chemical Formula is (NH₄)<sup>

...s and [[artificial insemination|bull sperm]], allowing storage at [[liquid nitrogen]] temperatures. However, glycerol cannot be used to protect whole [[organ (

...l Demethanizer]</ref> the liquefaction of [[gases]] (such as [[oxygen]], [[nitrogen]], [[helium]], [[argon]] and [[krypton]])<ref>[http://www.nzic.org.nz/ChemP ...mostly [[carbon monoxide]] (CO), [[carbon dioxide]] (CO₂) and [[nitrogen]] (N₂). Although the flue gas has been through two stages of [[C

...mu;₀ is the [[magnetic constant]]. Diamagnetic (e.g., gaseous [[nitrogen]]) and paramagnetic (e.g., gaseous [[oxygen]]) materials have &mu;<sub>r</

During WWII, the U.S. developed a family of much more toxic ''nitrogen mustard''s gasses, called the "HN" series. After their declassification at

In addition to carbon, some organisms also fix [[nitrogen]] gas ([[nitrogen fixation]]). This environmentally important trait can be found in bacteria ...de an easily absorbable form of nitrogen for many plants, which cannot fix nitrogen themselves. Many other bacteria are found as [[symbiont]]s [[Bacteria in th

...s. The landing rockets used an 18 nozzle design to spread the hydrogen and nitrogen exhaust over a wide area. It was determined that this would limit surface h

For another example, consider the elements [[nitrogen]], N, and [[oxygen]] O. The element oxygen occurs in the compounds NO (nitr ...e.html Eight molecular manipulable models of different compounds of solely nitrogen and oxygen, illustrating the law of multiple proportions.] USC Department o

...lemental gases: [[hydrogen]] (H₂), [[oxygen]](O₂), [[nitrogen]] (N₂), [[fluorine]] (F₂), [[chlorine]] (Cl<sub>2</su

...ure]]s, such as (typically) 77 K or −196 °C (the boiling point of [[liquid nitrogen]]). At these low temperatures, any biological activity, including the bioc

...nicus]]'' a model [[legume]] used to study the symbiosis responsible for [[nitrogen fixation]]. ''([[Agronomy]], [[Molecular biology]])''[[Image:L gibba2.jpg|t ...ently being sequenced. It is used to study the symbiosis responsible for nitrogen fixation. ''([[Agronomy]], [[Molecular biology]])''

...f fuels in [[furnace]]s where special burner designs are used to remove [[nitrogen oxides]] and [[flue gas desulfurization]] systems are used to remove [[sulf

In some installations, an inert gas (such as nitrogen) is used rather than air in order to avoid possibly creating a flammable or

...tions) in 1799. Dalton had studied gases and noted the weight ratios of [[nitrogen]], [[oxygen]] and [[carbon]] and proposed the Law of Simple Multiple Propor

...rms [[cryonics]], the preservation of humans after legal death in liquid [[nitrogen]], with hopes of restoring them to full health when new technology is devel

|Nitrogen dioxide<br>Ozone<br>Sulfur dioxide||These gases irritate the airways of the

...marense'' is known for its ability to adapt quickly to different levels of nitrogen, making it more likely to survive in a constantly changing environment.

...tanes⁺), elemental [[sulphur]], and sometimes [[helium]] and [[nitrogen]]. *Other gases: [[nitrogen]] (N₂) and [[helium]] (He).

...tanes⁺), elemental [[sulphur]], and sometimes [[helium]] and [[nitrogen]]. *Other gases: [[nitrogen]] (N₂) and [[helium]] (He).

...d in a [[hydrodesulfurization]] unit which removes both the sulfur and the nitrogen compounds.

...] [[air]], a mixture of [[paramagnetic]] [[oxygen]] and [[diamagnetic]] [[nitrogen]], is paramagnetic (i.e., has positive &chi;_''m''), the &chi;<s

...d in a [[hydrodesulfurization]] unit which removes both the sulfur and the nitrogen compounds.

By examining both ratios of major elements (e.g., carbon, hydrogen, oxygen, nitrogen) as well as the presence of trace elements, NAA, even though explosives are

...and. Trees such as willow and alder, which often grows in symbiosis with a nitrogen-fixing actinomycete (Frankia sp.), are planted around the islands' perimete ...s, every fifteen to twenty years, an entire raised field benefits from the nitrogen fixed by an alfalfa stand (from 30 to 300 kilogrammes N per hectare per yea

...netometers require cooling with liquid [[helium]] (4.2&nbsp;K) or liquid [[nitrogen]] (77&nbsp;K) to operate, hence the packaging requirements to use them are

...nventional materials in the container help identify their content, such as nitrogen-rich compounds that might be explosives. Third, if fissionable materials ar

...] (DIPPR). <ref>Wagner W., "New vapour pressure measurements for argon and nitrogen and a new method for establishing rational vapour pressure equations.", Cry

...]] is primarily made up of [[diatomic]] gases with a composition of ~78% [[nitrogen]] (N₂) and ~21% [[oxygen]] (O₂). At 20 °C and an abs

...]] is primarily made up of [[diatomic]] gases with a composition of ~78% [[nitrogen]] (N₂) and ~21% [[oxygen]] (O₂). At 20 °C and an abs

''S. pneumoniae'' gains a substantial amount of carbon and nitrogen using [[extracellular enzyme systems]] which allow for the metabolism of po

...o large organic molecules like [[DNA]]. Examples of atomic pairs are two [[nitrogen]] atoms chemically bound to the stable dinitrogen molecule (written as N<su ...[organic chemistry]]. They occur between, for instance, hydrogen, carbon, nitrogen, and oxygen atoms and give rise to stable, recognizable, molecules. Most

...assumed to play a significant role in the biological cycles of carbon and nitrogen. From soil, by direct contact or air-borne dust, endospores can contaminate

...logists are most interested in the decay of isotopes [[carbon-14]] (into [[nitrogen-14]]) and [[potassium-40]] (into [[argon-40]]). ...diocarbon dating is carried out by measuring how much of the carbon-14 and nitrogen-14 isotopes are found in a material. The ratio between the two is used to e

...tosynthesis]] and aggravates coral tissue. Excess nutrients, such as the [[nitrogen]] inputs from development, also promote macroalgal growth. When there is no

* Fractional excretion of urea nitrogen < 35%. <ref name="pmid17900456">{{cite journal |author=Pépin MN, Bouchard

...e also very good producers of [[manure]]; their [[urine]], being high in [[nitrogen]], makes [[lemon tree]]s very productive. Their [[milk]] may also be of gre

...limits. For example, such a regulation might limit the concentration of [[Nitrogen oxide|NOx]] to 55 ppmv in a dry combustion exhaust gas (at a specified refe

...al burning but from vehicular and industrial emissions of hydrocarbons and nitrogen oxides. It appears as a brownish haze over large urban areas and is irritat ...omobiles and other vehicles. They convert the NOx emissions into gaseous [[nitrogen]] and [[oxygen]]. They also convert any gaseous [[carbon monoxide]] emissio

...al burning but from vehicular and industrial emissions of hydrocarbons and nitrogen oxides. It appears as a brownish haze over large urban areas and is irritat ...omobiles and other vehicles. They convert the NOx emissions into gaseous [[nitrogen]] and [[oxygen]]. They also convert any gaseous [[carbon monoxide]] emissio

...ef><ref>Reading Chemical Fine Print: Resolution and Identification of 3000 Nitrogen-Containing Aromatic Compounds from a Single Electrospray Ionization Fourier

...ng, the liquefaction of [[Gas|gases]] such as [[hydrogen]], [[oxygen]], [[nitrogen]], and [[helium]]), and other low-temperature processing. ...[[aromatic]]s as well as [[Organic chemistry|organic]] [[sulphur]] and [[nitrogen]] compounds and some [[oxygen]] containing hydrocarbons such as [[phenols]

...aceweb/se/Se-12-2/se122152.pdf|title=Chemical potentials and activities of nitrogen and carbon imposed by gaseous nitriding and carburising atmospheres|accessd ...ates, resulting in [[high speed steel]]. On the other hand [[sulphur]], [[nitrogen]], and [[phosphorus]] make steel more brittle, so these commonly found elem

...limits. For example, such a regulation might limit the concentration of [[Nitrogen oxide|NOx]] to 55 ppmv in a dry combustion exhaust gas (at a specified refe

...racer|2000|p=12}}</ref><ref>{{Harvnb|Sapp|1994|p=142}}</ref> Examples are nitrogen-fixing [[bacterium|bacteria]] (called [[rhizobia]]) which live in [[root no

...with [[icosahdral]] symmetry. Poliovirus is composed of carbon, hydrogen, nitrogen, oxygen, phosphorus and sulphur.

...ombarded [[boron]] with alpha particles to make a proton-rich isotope of [[nitrogen]]; this isotope emitted [[positron]]s.[http://www.sciencemuseum.org.uk/coll ...ay|alpha]], [[beta ray|beta]] and [[gamma ray|gamma]] rays, he converted [[nitrogen]] into [[oxygen]], and most importantly he supervised the students who did

...er, increasing contamination of waterways and wetlands by nutrients like [[nitrogen]] and [[phosphorus]] are of concern in many countries. * [[Nitrogen]] and [[phosphorus]] surplus in [[river]]s and [[lake]]s.

...another and as the world’s first successful “alchemist,” confirmed that [[nitrogen]] was transmuted into [[oxygen]]<ref> Nobel Biography [http://nobelprize.or

:[[Nitrogen|N]]₂ + 3 [[Hydrogen|H]]₂ → 2 [[Ammonia|NH<sub>3]]</

...rbon dioxide]] (CO₂), [[sulfur dioxide]] (SO₂) and [[nitrogen oxide]]s (NO_x). ...ts emitted by coal-fired power plants are sulfur dioxide (SO₂), nitrogen oxides (NOx), particulate matter (PM), and [[mercury]] (Hg). Trace amounts

...y one cell out of ten differentiates into a heterocyst that provides fixed nitrogen for the neighboring cells (Figure 2, see top of page) <ref>Zhang CC ''et al ...ting, the four species coexist and strongly promote plant growth by fixing nitrogen, providing growth hormones, and preventing hostile bacterial species from g

The vacuum over the sample is then replaced with an inert gas (such as [[nitrogen]] or [[argon]]) and the distillate receiver can then be stoppered and remov

The vacuum over the sample is then replaced with an inert gas (such as [[nitrogen]] or [[argon]]) and the distillate receiver can then be stoppered and remov

...triethylsilyl [[free radical]] then reacts with the azide with expusion of nitrogen to a N-silylarylaminyl radical which grabs a proton from a thiol completing

...atile components from liquids. For example, steam and inert gases (such as nitrogen) have been and are being used for stripping liquids of undesirable, volatil

...are biochemically specialized to fix [[atmosphere|atmospheric]] [[nitrogen|nitrogen gas]] as [[solubility|soluble]] [[ammonia]] to be used for [[growth]]. (Mag ...rticipate in the Earth's element cycles such as the [[carbon cycle]] and [[nitrogen cycle]], as well as fulfilling other vital roles in virtually all [[ecosyst

...ds are often planted in a two-[[crop rotation]] with a [[Nitrogen fixation|nitrogen-fixing]] crop, often [[alfalfa]] in cooler climates and [[soybean]]s in reg

...same areas.<ref>David D. Biesboer, Michael W. Binford, Alan Kolata. 1999. Nitrogen Fixation in Soils and Canals of Rehabilitated Raised-Fields of the Bolivian