Search results
Jump to navigation
Jump to search
- ...t part of the [[flue gas]] from most fossil fuel combustion is uncombusted nitrogen. The next largest part of the flue gas is [[carbon dioxide]] (CO<sub>2</sub ...xides are derived from the nitrogen in the ambient air as well as from any nitrogen-containing compounds in the fossil fuel. The sulfur dioxide is derived from4 KB (619 words) - 09:16, 6 March 2024
- '''Mechlorethamine''' is a specific member of the class of [[nitrogen mustard]]s, originally introduced as [[chemical weapon]]s but now used medi670 bytes (83 words) - 20:14, 1 July 2010
- ...[extremophile]] microbes and invertebrates can survive storage in [[liquid nitrogen]].688 bytes (94 words) - 18:31, 29 December 2020
- ...cyclophosphamide]] is a [[medication]] that is "precursor of an alkylating nitrogen mustard [[antineoplastic agent|antineoplastic ]] and [[immunosuppressive ag557 bytes (72 words) - 03:02, 7 October 2013
- {{r|Nitrogen}}306 bytes (37 words) - 19:38, 31 May 2010
- |{{Image|Terra Nitrogen Plant.jpg|right|200px|Terra Nitrogen plant in Verdigris, Oklahoma that produces ammonia and ammonia derived fert2 KB (273 words) - 17:50, 17 June 2011
- ...ha</math>-amino nitrogen atom from the glutamate <math>\alpha</math>-amino nitrogen by transamination. Glutamate is a major [[neurotransmitter]] in the brain. ...utamate and ammonium ion, with energy derived from the hydrolysis of ATP. Nitrogen metabolism is largely controlled by glutamine synthetase and [[glutamate de3 KB (430 words) - 08:08, 8 June 2009
- {{r|Nitrogen mustards}}458 bytes (58 words) - 20:58, 11 January 2010
- ...s used to produce the useful substance [[ammonia]] from [[hydrogen]] and [[nitrogen]]. ==Sources of hydrogen and nitrogen==7 KB (1,067 words) - 10:08, 28 February 2024
- * Nitrogen in the form of ammonia. ...ounds in the cell, an thus glutamate formation is a major contributor to [[nitrogen assimilation]] in many organisms3 KB (509 words) - 02:33, 8 June 2009
- Auto-populated based on [[Special:WhatLinksHere/Nitrogen mustards]]. Needs checking by a human.525 bytes (65 words) - 19:02, 11 January 2010
- ...n [[Lead|lead]] without burning it or take a mouthful of liquid [[Nitrogen|nitrogen]] (without breathing it in, of course).2 KB (319 words) - 08:34, 6 March 2024
- {{r|Blood urea nitrogen}}680 bytes (81 words) - 00:02, 5 January 2010
- {{r|Nitrogen}}624 bytes (83 words) - 11:58, 31 December 2022
- ...rogen out of soil, and decreased nitrogen itself will reduce plant growth, nitrogen fertilizers are often added to the soil in order to counteract that general2 KB (380 words) - 05:28, 3 January 2008
- In tradition agriculture, [[maize]] (corn) was planted (often with some high-nitrogen fertilizer) such as a small fish under the seeds. Besides its own productio727 bytes (110 words) - 13:41, 29 June 2008
- *{{cite journal|author=Jessica G. Davis|title=The Nitrogen Fate and Transformations Game|journal=Journal of Natural Resources and Life574 bytes (82 words) - 22:02, 11 March 2010
- {{r|Nitrogen mustards}}698 bytes (86 words) - 15:48, 11 January 2010
- ...g a base structure (C<sub>1</sub>N<sub>4</sub>H<sub>2</sub>) in which four nitrogen atoms and one carbon atom form a 5-atom heterocycle. They can be synthesiz672 bytes (100 words) - 14:38, 6 February 2010
- {{r|Nitrogen mustards}}835 bytes (102 words) - 17:24, 11 January 2010
- {{r|Nitrogen}}802 bytes (101 words) - 12:57, 15 March 2024
- ...e of physical state, so that, for example, liquid [[nitrogen]] and gaseous nitrogen do not qualify as allotropes of that element.2 KB (333 words) - 21:17, 13 November 2010
- ...tic]] ring structure with two heteroatoms, at least one of which must be a nitrogen atom. One, and only one, lone pair of electrons from each heteroatom is pa ...r to pyrazole and imadazole shown above, but they would have an additional nitrogen atom in the ring structure.2 KB (340 words) - 08:40, 22 August 2013
- {{r|Nitrogen}}777 bytes (99 words) - 16:15, 11 January 2010
- *{{cite book|author=Gary Maxwell|title=Synthetic Nitrogen Products: A Practical Guide to the Products and Processes|edition=First Edi679 bytes (98 words) - 21:41, 25 February 2008
- {{r|Nitrogen mustard}}703 bytes (107 words) - 19:19, 23 November 2010
- ...a</math>-lactam structure. The lactams may have substitutions added to the nitrogen atom or any of the non-carbonyl carbon atoms in the base structure.2 KB (362 words) - 17:14, 21 March 2024
- ...e.html Eight molecular manipulable models of different compounds of solely nitrogen and oxygen, illustrating the law of multiple proportions.] USC Department o1,010 bytes (128 words) - 21:16, 4 June 2009
- {{r|Nitrogen}}768 bytes (104 words) - 14:34, 10 September 2011
- ...to cyclic aromatic compounds, and their alkyl derivatives, that contain [[nitrogen]], [[oxygen]] or [[sulphur]] atoms within the ringed structure. These cont1 KB (129 words) - 09:16, 6 March 2024
- ...was ©OO. Nitrous oxide (N20) was ØØO, and ØO was nitric oxide (NO), while nitrogen peroxide (NO2) could be represented as ØOO. He had discovered another fund3 KB (538 words) - 21:11, 4 June 2009
- ...rogen-Emissions Sour Showers: Acid Rain Returns--This Time It Is Caused by Nitrogen Emissions]. ''Scientific American'', September 2010, pp. 23-24.1 KB (147 words) - 13:22, 30 October 2023
- A '''nitrile''' is an organic compound containing a carbon triple bonded to nitrogen.827 bytes (113 words) - 17:46, 28 October 2010
- ===Nitrogen and hydrogen required for ammonia synthesis=== As another example, if we want to determine the amounts of [[nitrogen]] and hydrogen gases required to produce 5 [[kilogram|kg]] of [[ammonia]] g8 KB (1,289 words) - 22:35, 20 June 2010
- ...ineoplastic agent]] of the [[alkylating agent]] class. Belonging to the [[nitrogen mustard]] family, it is highly toxic, and "according to the Fourth Annual R1 KB (147 words) - 15:34, 5 February 2009
- {{r|Nitrogen}}1 KB (164 words) - 09:18, 6 March 2024
- ...orless, odorless and tasteless mixture of [[gas]]es consisting mostly of [[nitrogen]] (N<sub>2</sub>) and [[oxygen]] (O<sub>2</sub>). It is the part of [[Earth |[[Nitrogen]]|| align="center"|N<sub>2</sub>|| align="center"| 78.084|| align="center"|12 KB (1,867 words) - 08:51, 30 June 2023
- {{r|Nitrogen}}1 KB (165 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}1 KB (175 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}1 KB (169 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}1 KB (185 words) - 12:57, 15 March 2024
- {{r|Nitrogen}}1 KB (184 words) - 09:18, 6 March 2024
- {{Image|Nitrogen Cycle drawing.png|right|420px|The nitrogen cycle is a complex system necessary for living beings.}} ...ame=nasa1>[http://soil.gsfc.nasa.gov/NFTG/nitrocyc.htm The Nitrogen Cycle: Nitrogen Transformations in Soil, Water, and Air.] Soil Education Project. National21 KB (3,189 words) - 15:35, 3 September 2010
- ...a colorless, odorless and tasteless mixture of gases consisting mostly of nitrogen (N<sub>2</sub>) and oxygen<sub>2</sub>(O2). Other meanings of the word air950 bytes (152 words) - 14:34, 11 March 2010
- ...m catalyst, it still often has the drawbacks of the need to store it under nitrogen and being sensitive to air. The long reaction times and the limited choice1 KB (156 words) - 18:22, 20 December 2007
- {{r|Nitrogen}}1 KB (184 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}1 KB (185 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}1 KB (185 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}1 KB (188 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}1 KB (189 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}1 KB (194 words) - 12:49, 15 March 2024
- {{r|Nitrogen}}1 KB (193 words) - 09:18, 6 March 2024
- ...tic]] ring structure with two heteroatoms, at least one of which must be a nitrogen atom. One, and only one, lone pair of electrons from each heteroatom is pa1 KB (178 words) - 08:38, 22 August 2013
- {{r|Nitrogen}}1 KB (197 words) - 12:49, 15 March 2024
- ...of ''Klebsiella pneumoniae'' it was found that glnA and glnG regulates the nitrogen fixing activities(8). ...Merrick M. "Complementation analysis of glnA-linked mutations which affect nitrogen fixation in Klebsiella pneumoniae". Mol Gen Genet. 1981. Volume 184, No. 2.6 KB (780 words) - 17:26, 16 February 2010
- {{r|Nitrogen}}1 KB (199 words) - 12:57, 15 March 2024
- {{r|Nitrogen}}1 KB (199 words) - 12:57, 15 March 2024
- {{r|Nitrogen}}1 KB (202 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}1 KB (198 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}1 KB (203 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}1 KB (202 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}1 KB (203 words) - 09:18, 6 March 2024
- ====[[Nitrogen mustards]]====4 KB (467 words) - 00:17, 6 February 2009
- {{r|Nitrogen}}1 KB (201 words) - 12:57, 15 March 2024
- '''Isotopes of Nitrogen and their Physical Properties'''2 KB (267 words) - 13:31, 25 April 2008
- {{r|Nitrogen}}2 KB (210 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}2 KB (208 words) - 12:49, 15 March 2024
- ...n atoms, nitrogen atoms in amide groups, or [[ether]]-like [[oxygen]] or [[nitrogen]] atoms, often within cyclic compounds. Al<sub>3</sub> is often used as a3 KB (523 words) - 05:03, 12 September 2013
- {{r|Nitrogen}}1 KB (209 words) - 12:57, 15 March 2024
- {{r|Nitrogen}}2 KB (215 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}2 KB (213 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}2 KB (216 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}2 KB (215 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}2 KB (218 words) - 09:18, 6 March 2024
- ...e [[basic metabolic panel]], which also measures [[glucose]], [[blood urea nitrogen]] and [[creatinine]]; an automated analyzer often simultaneously determines1 KB (181 words) - 15:38, 18 September 2010
- ...-called permanent [[gases]] (such as [[helium]], [[hydrogen]], [[neon]], [[nitrogen]], [[oxygen]], and normal [[Earth's atmosphere|air]]) lie below -180 °C wh ...rogen]] and liquid helium, are used in many cryogenic applications. Liquid nitrogen is the most commonly used element in cryogenics and is legally purchasable7 KB (1,043 words) - 09:37, 6 March 2024
- {{r|Nitrogen}}2 KB (225 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}2 KB (222 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}2 KB (224 words) - 12:49, 15 March 2024
- ...so contain small amounts of [[particulate matter]], [[carbon monoxide]], [[nitrogen oxide]]s, and [[sulfur oxide]]s in the form of gaseous [[sulfur dioxide]] ( ...into gaseous nitrogen dioxide (NO<sub>2</sub>) and some of that gas phase nitrogen oxide then combines with water vapor to form gas phase [[nitric acid]] (HNO11 KB (1,721 words) - 08:08, 15 March 2024
- {{r|Nitrogen}}2 KB (211 words) - 09:35, 29 March 2024
- {{r|Nitrogen}}2 KB (232 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}2 KB (229 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}2 KB (226 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}2 KB (231 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}2 KB (250 words) - 09:18, 6 March 2024
- ...formation and release of [[smoke]], ash, [[dust]], [[carbon dioxide]], [[nitrogen oxide]]s and other air pollutants. ..., result in the formation and release of smoke, ash, dust, carbon dioxide, nitrogen oxides and other air pollutants.8 KB (1,251 words) - 09:37, 6 March 2024
- {{r|Nitrogen}}2 KB (244 words) - 09:18, 6 March 2024
- ...in which one or the other of the oxygen atoms forms a double bond with the nitrogen atom.}}1 KB (214 words) - 05:43, 12 September 2013
- {{r|Nitrogen}}2 KB (247 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}2 KB (247 words) - 12:57, 15 March 2024
- {{r|Nitrogen}}2 KB (245 words) - 17:08, 22 March 2024
- ...[[methane]], [[ethane]], [[propane]], [[isobutane]], normal [[butane]], [[nitrogen]], [[carbon dioxide]] and [[hydrogen sulphide]].2 KB (241 words) - 09:37, 6 March 2024
- {{r|Nitrogen}}1 KB (226 words) - 07:24, 4 March 2010
- {{r|Nitrogen}}2 KB (257 words) - 12:57, 15 March 2024
- {{r|Nitrogen}}2 KB (256 words) - 09:18, 6 March 2024
- {{r|Nitrogen}}2 KB (263 words) - 09:18, 6 March 2024
- ...y the diatomics such as [[oxygen]] (O=O), [[carbon monoxide]] (C≡O), and [[nitrogen]] (N≡N). But also many triatoms are linear: ...cene]] (C<sub>14</sub>H<sub>10</sub>), [[water]] (H<sub>2</sub>O), and [[nitrogen dioxide]] (NO<sub>2</sub>).5 KB (704 words) - 05:59, 26 September 2007
- ...en, the resultant [[flue gas]] from the combustion of a fuel will contain nitrogen plus the products of combustion: <center>'''methane + oxygen + nitrogen → carbon dioxide + water vapor + nitrogen'''<br/>12 KB (1,825 words) - 17:36, 28 March 2021
- {{r|Nitrogen}}2 KB (280 words) - 09:18, 6 March 2024
- ...min). Secondary end points were dietary protein intake, normalized protein nitrogen appearance, serum albumin, and mid-arm muscle circumference. Compared with2 KB (196 words) - 19:49, 29 October 2009
- ...sue|tissue]]/[[DNA]] samples and 21 pet tissue/[[DNA]] samples in [[liquid nitrogen]] storage.<ref>{{cite web ...the privilege of making arrangements for perfusion and storage in liquid [[nitrogen]] for $28,000, whereas an Option Two Member must pay $35,000.<ref name="Mem8 KB (1,153 words) - 19:13, 7 September 2023
- ...nd hydrogen bond is formed between the uracil H3 proton and the adenine N1 nitrogen atom. Like other nucleotide bases, it is subject to oxidative damage.4 KB (593 words) - 13:27, 19 June 2008
- ...osive salt of hydrazoic acid, HN<sub>3</sub>. The compound is white, has a nitrogen content of 28.86 percent and a molecular weight of 291.26. <ref name=ExplTM2 KB (243 words) - 02:00, 23 January 2011
- *Other gases: [[nitrogen]] (N<sub>2</sub>) and [[helium]] (He). ...mounts of components such as hydrogen sulfide, carbon dioxide, mercaptans, nitrogen, and water vapor.11 KB (1,750 words) - 09:37, 6 March 2024
- ...ition of [[azomethane]] (CH<sub>3</sub>N=NCH<sub>3</sub>) into methane and nitrogen gas. Many compounds decay so slowly that it is impractical to wait for half2 KB (293 words) - 16:59, 2 December 2021
- ...lled Laser Vaporization Controlled Condensation (LVCC). The proportion of nitrogen to oxygen gas determines the resulting products, for example, a 1:1 mixture5 KB (712 words) - 21:11, 22 February 2009
- ! Percent nitrogen2 KB (299 words) - 08:34, 19 March 2024
- {{r|Nitrogen}}2 KB (323 words) - 12:57, 15 March 2024
- [[Earth's atmosphere|air]], [[oxygen]] 21% by volume and [[nitrogen]] 79% by volume are: |align=left|= partial pressure of nitrogen =<font style="vertical-align:-15%;"> <math>p_{{\mathrm{N}}_2}</math><12 KB (1,983 words) - 11:44, 13 September 2013
- ...000,000 metric tons.<ref>[http://minerals.usgs.gov/minerals/pubs/commodity/nitrogen/nitromcs07.pdf United States Geological Survey publication]</ref> China pro ...process]], which is the production of ammonia by combining hydrogen and [[nitrogen]], was first patented by [[Fritz Haber]] in 1908. In 1910, [[Carl Bosch]],11 KB (1,648 words) - 09:02, 4 May 2024
- [[Earth's atmosphere|air]], [[oxygen]] 21% by volume and [[nitrogen]] 79% by volume are: |align=left|= partial pressure of nitrogen =<font style="vertical-align:-15%;"> <math>p_{{\mathrm{N}}_2}</math><12 KB (1,987 words) - 13:09, 3 November 2021
- ...000,000 metric tons.<ref>[http://minerals.usgs.gov/minerals/pubs/commodity/nitrogen/nitromcs07.pdf United States Geological Survey publication]</ref> China pro ...process]], which is the production of ammonia by combining hydrogen and [[nitrogen]], was first patented by [[Fritz Haber]] in 1908. In 1910, [[Carl Bosch]],11 KB (1,686 words) - 09:02, 4 May 2024
- | Urea nitrogen2 KB (307 words) - 12:46, 12 January 2010
- ==== Nitrogen mustard analogues====10 KB (1,356 words) - 06:07, 5 April 2024
- 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 o11 KB (1,717 words) - 18:42, 4 January 2012
- ...displacement of PRPP's pyrophosphate group (PP<sub>i</sub>) by Gln's amide nitrogen. The reaction occurs with the inversion of configuration about ribose C1, t2 KB (369 words) - 12:23, 5 January 2008
- ...cket engines with the storable, hypergolic mixture of Aerozine 50 fuel and nitrogen tetroxide oxidizer.2 KB (349 words) - 14:31, 18 March 2024
- ...sub>), [[sulfur dioxide]] (S0<sub>2</sub>), [[carbon monoxide]] (CO) and [[nitrogen dioxide]] (NO<sub>2</sub>) and calculate air quality indices for these poll ...API) level that is based on the ambient air concentrations sulfur dioxide, nitrogen dioxide, particulate matter (PM<sub>10</sub>), carbon monoxide, and ozone a19 KB (2,899 words) - 11:52, 2 February 2023
- ...ocesses occurring in a trickle filter, there may also be some by-product [[nitrogen]] (N<sub>2</sub>) and [[methane]] (CH<sub>4</sub>) gases. *Formation of gases in the biofilm such as carbon dioxide, nitrogen and methane11 KB (1,588 words) - 10:16, 4 July 2023
- ...during a J-T expansion at typical room temperatures. On the other hand, [[nitrogen]] has an inversion temperature of 621 K (348 °C) and [[oxygen]] has an inv ...[[cryogenic]] applications (e.g., for the production of [[liquid]] oxygen, nitrogen and [[argon]]). Only when the Joule-Thomson coefficient for the given gas a7 KB (1,081 words) - 05:42, 4 September 2013
- ...during a J-T expansion at typical room temperatures. On the other hand, [[nitrogen]] has an inversion temperature of 621 K (348 °C) and [[oxygen]] has an inv ...[[cryogenic]] applications (e.g., for the production of [[liquid]] oxygen, nitrogen and [[argon]]). Only when the Joule-Thomson coefficient for the given gas a7 KB (1,084 words) - 05:41, 4 September 2013
- ...not required to pay for the initial freezing, yearly maintenance in liquid nitrogen, or eventual reanimation (should the latter prove possible). Members often ...ion and procedures for maintaining tissue, organs, and organisms at liquid nitrogen temperature.10 KB (1,556 words) - 09:18, 1 July 2023
- ...', namely [[carbon monoxide]] (CO), [[sulfur dioxide]] (SO<sub>2</sub>), [[nitrogen dioxide]] (NO<sub>2</sub>), [[ozone]] (O<sub>3</sub>), [[lead]] (Pb), [[Par |Nitrogen dioxide||0.053 ppmv<br/>( 100 μg/m<sup>3</sup> )||Annual<br/>(arithmetic m7 KB (1,063 words) - 14:08, 2 February 2023
- ...es and/or surface composition, frost layers, and interactions with Pluto's nitrogen-methane atmosphere. NASA photo credit (HST, STScI-PR96-09a)}} ...ntly covered by water ice. Pluto, on the other hand is covered with frozen nitrogen, methane, and carbon dioxide. One possible explanation for the difference i6 KB (989 words) - 08:07, 10 January 2021
- ...[[spermatozoon|sperm]] and [[embryo]]s that are cold-preserved in [[liquid nitrogen]].3 KB (388 words) - 10:27, 13 April 2008
- ...nucleus (1909–1911). Later Rutherford and collaborators bombarded [[nitrogen]] with α-particles, changing it to [[oxygen]], producing in 1919 the3 KB (412 words) - 20:02, 20 September 2021
- <tr><td>[[Nitrite]]</td> <td>NO<sub>2</sub><sup>-</sup></td> <td> Evolves [[nitrogen dioxide]] (NO<sub>2</sub>) gas when sulfuric acid is added; Reduces Fe(III)3 KB (610 words) - 09:37, 6 March 2024
- ...Ernst AA, Haynes ML, Nick TG, Weiss SJ |title=Usefulness of the blood urea nitrogen/creatinine ratio in gastrointestinal bleeding |journal=Am J Emerg Med |volu ...Ernst AA, Haynes ML, Nick TG, Weiss SJ |title=Usefulness of the blood urea nitrogen/creatinine ratio in gastrointestinal bleeding |journal=Am J Emerg Med |volu14 KB (1,917 words) - 20:22, 8 April 2013
- Auto-populated based on [[Special:WhatLinksHere/Nitrogen]]. Needs checking by a human.3 KB (457 words) - 12:49, 15 March 2024
- ...e competition between the plants that need the nitrogen for growth and the nitrogen needed for the stabilization of the organic matter. #Carbon/Nitrogen ratio: during the compost process the C/N-ration will decrease, so we can u20 KB (3,189 words) - 09:37, 6 March 2024
- ...nergy (science)|energy]]. When fossil fuels are burned, [[acid]]-forming [[nitrogen oxides]] and [[sulfur oxides]] are released to the [[atmosphere]]. These [[ ...en employed to reduce emissions of [[sulfur dioxide]] (SO<sub>2</sub>) and nitrogen oxides (NOx).26 KB (3,985 words) - 09:16, 6 March 2024
- ...[Energy (science)|energy]]. When fossil fuels are burned, [[acid]]-forming nitrogen oxides and sulfur oxides are released to the [[atmosphere]]. These [[chemic ...en employed to reduce emissions of [[sulfur dioxide]] (SO<sub>2</sub>) and nitrogen oxides (NOx).26 KB (3,984 words) - 08:07, 15 March 2024
- ...[moon]]. For example, the atmosphere of the [[Earth]] is composed of 78% [[nitrogen]], 20% [[oxygen]], 1% [[argon]] and trace amounts of other elements. On the3 KB (509 words) - 11:48, 2 February 2023
- <tr> <td>[[Nitrogen]]-14</td> <td><sup>14</sup>N</td> <td>1</td> <td>0.000998</td> <tr> <td>Nitrogen-15</td> <td><sup>15</sup>N</td> <td>-1/2</td> <td>3.84E-06</td>12 KB (1,860 words) - 09:15, 6 March 2024
- |align=center| [[Nitrogen|N<sub>2</sub>]] ||align=center| 1639.34 ||align=center| 6.1 E-4 ||align=ce ...<sub>2</sub>]] || align=center| [[CO2|CO<sub>2</sub>]] || align=center| [[Nitrogen|N<sub>2</sub>]] || align=center| [[Helium|He]] || align=center| [[Neon|Ne]]11 KB (1,729 words) - 05:20, 3 September 2013
- Sputnik 1 was pressurized with inert nitrogen at 1.3 atmospheres. The power for the transmitter etc was supplied by 3 sil3 KB (489 words) - 19:13, 15 October 2013
- ...atic systems and has been speculated to account for approximately 50% of [[nitrogen]] gas production in some marine environments. ...] as a carbon source for growth. Some photosynthetic organisms also fix [[nitrogen]] (see below).29 KB (4,037 words) - 02:19, 7 March 2024
- ...sult is that the hydrocracking products are essentially free of sulfur and nitrogen impurities and consist mostly of [[Hydrocarbons|paraffinic]] hydrocarbons. ...[platinum]]) catalysts which are susceptible to [[poisoning]] by sulfur or nitrogen compounds.<ref name=Jones/>17 KB (2,523 words) - 09:37, 6 March 2024
- ...mmonia]] from the gaseous [[chemical element|elements]] [[hydrogen]] and [[nitrogen]]. [[Ammonia]] is an important feedstock for artificial fertilizers and exp ...N<sub>2</sub> + 3H<sub>2</sub> → 2NH<sub>3</sub> is a good candidate for nitrogen (N<sub>2</sub>) fixation, because the resulting ammonia (NH<sub>3</sub>) ca15 KB (2,281 words) - 02:47, 24 March 2010
- ...ntage of pollutants such as [[particulate matter]], [[carbon monoxide]], [[nitrogen oxide]]s and [[sulfur oxide]]s. The flue gas stacks are often quite tall, u ...[sulfur dioxide]] via [[flue gas desulfurization]] as well as removal of [[nitrogen oxides]] (NO<sub>x</sub>) via [[selective catalytic reduction]], [[exhaust11 KB (1,689 words) - 20:45, 20 July 2011
- |align=center| [[Nitrogen|N<sub>2</sub>]] ||align=center| 1639.34 ||align=center| 6.1 E-4 ||align=ce ...<sub>2</sub>]] || align=center| [[CO2|CO<sub>2</sub>]] || align=center| [[Nitrogen|N<sub>2</sub>]] || align=center| [[Helium|He]] || align=center| [[Neon|Ne]]13 KB (2,084 words) - 05:21, 3 September 2013
- ...rganism byproducts were used to [[fertilize]], [[nitrogen fixation|restore nitrogen]], and [[pesticide|control pests]]. Throughout the use of agriculture farme9 KB (1,266 words) - 18:41, 3 March 2024
- ...esence extends the life of the maize plot significantly by helping to keep nitrogen levels healthy. One might say that the maize repays the debt it owes to th10 KB (1,674 words) - 21:25, 20 February 2010
- ...]. The hydrogen atom must be attached to one of the elements [[oxygen]], [[nitrogen]] or [[fluorine]], all of which are strongly [[Electronegativity|electroneg ...ir of electrons in nonmetallic atoms (most notably in the [[nitrogen group|nitrogen]], and [[chalcogen]] groups). In some cases, these proton acceptors may be12 KB (1,827 words) - 17:00, 7 March 2024
- ...r to the [[azole]]s [[pyrazole]] and [[imidazole]], but with an additional nitrogen atom in the ring structure. Like the azoles, triazoles are used in many an3 KB (477 words) - 13:01, 11 June 2009
- ...[[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 Fresnel13 KB (1,788 words) - 09:02, 4 May 2024
- ...results in a substantial reduction of unburned hydrocarbons. Emissions of nitrogen oxides are either slightly reduced or slightly increased depending on the d9 KB (1,380 words) - 05:52, 30 October 2013
- ...H<sub>3</sub>, is an analogue of ammonia, NH<sub>3</sub>. Phosphorus, like nitrogen, is trivalent in this molecule. Figure A shows the pre-quantum mechanical ...us [[cation]] is very similar to the nitrogen cation. In the same way that nitrogen forms the tetravalent ammonium ion, phosphorus can form the tetravalent pho19 KB (2,983 words) - 05:36, 6 March 2024
- ...H<sub>3</sub>, is an analogue of ammonia, NH<sub>3</sub>. Phosphorus, like nitrogen, is trivalent in this molecule. Figure A shows the pre-quantum mechanical ...us [[cation]] is very similar to the nitrogen cation. In the same way that nitrogen forms the tetravalent ammonium ion, phosphorus can form the tetravalent pho19 KB (2,982 words) - 05:36, 6 March 2024
- ...[[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 Fresnel14 KB (1,996 words) - 09:02, 4 May 2024
- How many moles of nitrogen are present in a 50 L tank at 25 °C when the pressure is 10 atm? Numbers4 KB (627 words) - 13:03, 16 January 2009
- ...ovide most of the greenhouse. Common homonuclear diatomic gases, such as [[nitrogen]] (N<sub>2</sub>) and [[oxygen]] (O<sub>2</sub>), do not afford dipole tran5 KB (720 words) - 01:26, 21 December 2009
- ...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.19 KB (2,821 words) - 13:34, 10 January 2014
- ...clinical syndrome; the [[glomerular filtration rate]] (GFR), [[blood urea nitrogen]], and [[creatinine]] do not always correlate to the severity of disease. <4 KB (590 words) - 20:50, 4 January 2010
- As a more complex example, the [[concentration]] of [[nitrogen oxides]] (i.e., NOx) in the [[flue gas]] from an industrial [[furnace]] can4 KB (683 words) - 22:39, 11 January 2010
- ...x) into more harmless gases like [[carbon dioxide]] (CO<sub>2</sub>) and [[nitrogen]] (N<sub>2</sub>). 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]] fee21 KB (3,174 words) - 07:31, 20 April 2024
- ...or general terms and one-place predicates like "is [[red]]" or "contains [[nitrogen]]", and unlike other explanations - realist or nominalist - [[set theory]]5 KB (829 words) - 01:53, 15 January 2010
- ...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"|N<sub>2</sub>|| align="center"| 78.084|| align="center"|22 KB (3,363 words) - 19:40, 9 January 2021
- <tr><td> N <td> [[Nitrogen]] <td align="right"> 78 KB (1,135 words) - 09:15, 6 March 2024
- ...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 '''Hydroden15 KB (2,156 words) - 09:37, 6 March 2024
- ...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.20 KB (3,081 words) - 21:57, 31 March 2022
- <tr><td>7 <td>N <td>[[Nitrogen]] <td bgcolor="#D0D0D0">2 <td bgcolor="#D0D0D0">2<td>321 KB (3,868 words) - 09:15, 6 March 2024
- ...s of air pollutants such as [[particulate matter]], [[carbon monoxide]], [[nitrogen oxide]]s, and [[sulfur oxide]]s in the form of gaseous [[sulfur dioxide]] (16 KB (2,561 words) - 09:49, 28 July 2023
- ...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 wa14 KB (2,297 words) - 00:20, 29 October 2013
- ...[[oxidative stress]] initiated by [[reactive oxygen species]], [[reactive nitrogen species]], and other oxidant constituents of cigarette smoke.5 KB (678 words) - 08:07, 30 September 2016
- ...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 '''Hydroden15 KB (2,197 words) - 09:37, 6 March 2024
- ...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.11 KB (1,526 words) - 06:55, 9 June 2009
- ...le amounts of ozone, [[reactive hydrocarbon]]s, [[nitrogen oxide]] (NO), [[nitrogen dioxide]] (NO<sub>2</sub>), [[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 reactive32 KB (4,922 words) - 07:33, 20 April 2024
- 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 th11 KB (1,596 words) - 11:39, 18 May 2009
- ...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 usef6 KB (785 words) - 02:22, 15 May 2010
- ...lign="left "> 7 <td> [[Nitrogen|N]] <td width="5%" > {{Atomic mass|Nitrogen}} <td width="15%"> <td align="left "> 44 <td> [[Ruthenium|Ru]] <td w18 KB (2,483 words) - 09:47, 6 March 2024
- ...rst six chemical elements, hydrogen, [[helium]], [[lithium]], [[boron]], [[nitrogen]] and [[carbon]] have 1, 2, 3, 4, 5 and 6 protons, respectively, as well as5 KB (829 words) - 21:52, 21 July 2020
- ...live in it. Rutherford called this gas (which we now know would be mainly nitrogen) “noxious air” or “phlogisticated air”.<ref>[http://books.google.co11 KB (1,779 words) - 21:23, 16 February 2010
- ...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.6 KB (957 words) - 05:47, 12 September 2013
- ...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 die5 KB (817 words) - 06:29, 31 May 2009
- ...[[air quality]] pollutants such as [[sulfur dioxide]] (SO<sub>2</sub>), [[nitrogen oxides]] (NO<sub>x</sub>), [[particulate matter]], [[carbon monoxide]] (CO)6 KB (790 words) - 14:07, 2 February 2023
- ...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.20 KB (3,084 words) - 09:16, 6 March 2024
- ...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.5 KB (799 words) - 08:37, 8 June 2009
- <tr> <td>[[Nitrogen]]-14</td> <td><sup>14</sup>N</td> <td>1</td> <td>0.000998</td> <tr> <td>Nitrogen-15</td> <td><sup>15</sup>N</td> <td>-1/2</td> <td>3.84E-06</td>15 KB (2,459 words) - 17:02, 7 March 2024
- ...water and ion concentrations of the [[blood plasma]]. Besides excreting [[nitrogen]] compounds, [[toxins]], water, and [[electrolytes]], kidneys also act as e6 KB (806 words) - 10:40, 24 July 2008
- <tr><td>N<sub>H</sub></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 | journal32 KB (5,116 words) - 04:54, 21 March 2024
- ...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]] duri6 KB (763 words) - 08:07, 29 February 2024
- ...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 for19 KB (2,947 words) - 20:20, 27 December 2020
- ...s solution "carbonic acid"), silica (silicon dioxide), nitrogen oxide and nitrogen dioxide, nitrate (NO<sub>3</sub><sup>-</sup> in nitric acid and its salts),12 KB (1,791 words) - 05:43, 6 March 2024
- ...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 g21 KB (3,106 words) - 09:10, 5 May 2024
- ...per second|m/s]]. [[Attitude control]] was achieved by 12 small compressed-nitrogen jets. An acquisition [[Sun sensor]], a cruise Sun sensor, a Canopus [[star11 KB (1,602 words) - 01:59, 11 September 2013
- ...ture is reflected in the systematic name, ''2-([[acetyl]][[oxygen|oxy]])-[[Nitrogen|N,N,N]]-[[3 (number)|tri]][[methyl]][[ethane|ethan]][[amine|aminium]]''.12 KB (1,602 words) - 06:08, 8 June 2009
- ...silicon and sulphur), neutral elements (most of which is hydrogen, helium, nitrogen, oxygen, neon and argon) and condensed dust grains (primarily aluminium, ca7 KB (987 words) - 10:12, 30 May 2009
- ...[[Triton (moon)|Triton]], is geologically active, with geysers of [[liquid nitrogen]].<ref>{{cite web|title=The Plausibility of Boiling Geysers on Triton|autho6 KB (904 words) - 19:12, 9 January 2021
- ...in tissue sections can sometimes be stored almost indefinitely at [[liquid nitrogen]] temperature ([[cryopreservation]]). Human sperm, eggs and [[embryo]]s are ...ure between −30°C and −40°C before being plunged into [[liquid nitrogen]].13 KB (1,770 words) - 11:49, 2 February 2023
- ...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<su25 KB (3,880 words) - 09:42, 28 September 2013
- * An [[Ammonium]] ion is made up of one nitrogen atom and four hydrogen atoms: its Chemical Formula is (NH<sub>4</sub>)<sup>9 KB (1,524 words) - 10:20, 13 November 2007
- ...s and [[artificial insemination|bull sperm]], allowing storage at [[liquid nitrogen]] temperatures. However, glycerol cannot be used to protect whole [[organ (6 KB (901 words) - 08:28, 21 September 2013
- ...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]] (CO<sub>2</sub>) and [[nitrogen]] (N<sub>2</sub>). Although the flue gas has been through two stages of [[C16 KB (2,411 words) - 09:37, 6 March 2024
- ...mu;<sub>0</sub> is the [[magnetic constant]]. Diamagnetic (e.g., gaseous [[nitrogen]]) and paramagnetic (e.g., gaseous [[oxygen]]) materials have μ<sub>r</8 KB (1,392 words) - 07:40, 3 December 2009
- During WWII, the U.S. developed a family of much more toxic ''nitrogen mustard''s gasses, called the "HN" series. After their declassification at6 KB (979 words) - 11:49, 2 February 2023
- 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 th26 KB (3,840 words) - 09:16, 6 March 2024
- ...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 h6 KB (935 words) - 07:34, 9 June 2009
- 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 o26 KB (4,140 words) - 06:36, 6 March 2024
- ...lemental gases: [[hydrogen]] (H<sub>2</sub>), [[oxygen]](O<sub>2</sub>), [[nitrogen]] (N<sub>2</sub>), [[fluorine]] (F<sub>2</sub>), [[chlorine]] (Cl<sub>2</su8 KB (1,191 words) - 19:28, 22 January 2011
- ...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 bioc7 KB (1,003 words) - 21:10, 3 February 2009
- ...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]])''15 KB (2,115 words) - 06:56, 9 June 2009
- ...f fuels in [[furnace]]s where special burner designs are used to remove [[nitrogen oxides]] and [[flue gas desulfurization]] systems are used to remove [[sulf7 KB (1,013 words) - 07:32, 20 April 2024
- In some installations, an inert gas (such as nitrogen) is used rather than air in order to avoid possibly creating a flammable or8 KB (1,247 words) - 06:40, 12 September 2013
- ...tions) in 1799. Dalton had studied gases and noted the weight ratios of [[nitrogen]], [[oxygen]] and [[carbon]] and proposed the Law of Simple Multiple Propor7 KB (1,170 words) - 08:30, 6 May 2022
- ...rms [[cryonics]], the preservation of humans after legal death in liquid [[nitrogen]], with hopes of restoring them to full health when new technology is devel7 KB (1,058 words) - 15:32, 8 March 2023
- |Nitrogen dioxide<br>Ozone<br>Sulfur dioxide||These gases irritate the airways of the8 KB (1,221 words) - 07:31, 20 April 2024
- ...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.8 KB (1,259 words) - 19:48, 1 November 2013
- ...tanes<sup>+ </sup>), elemental [[sulphur]], and sometimes [[helium]] and [[nitrogen]]. *Other gases: [[nitrogen]] (N<sub>2</sub>) and [[helium]] (He).26 KB (3,931 words) - 09:37, 6 March 2024
- ...tanes<sup>+ </sup>), elemental [[sulphur]], and sometimes [[helium]] and [[nitrogen]]. *Other gases: [[nitrogen]] (N<sub>2</sub>) and [[helium]] (He).26 KB (3,927 words) - 09:37, 6 March 2024
- ...d in a [[hydrodesulfurization]] unit which removes both the sulfur and the nitrogen compounds.19 KB (2,771 words) - 09:16, 6 March 2024
- ...] [[air]], a mixture of [[paramagnetic]] [[oxygen]] and [[diamagnetic]] [[nitrogen]], is paramagnetic (i.e., has positive χ<sub>''m''</sub>), the χ<s9 KB (1,428 words) - 08:19, 1 April 2011
- ...d in a [[hydrodesulfurization]] unit which removes both the sulfur and the nitrogen compounds.19 KB (2,792 words) - 09:16, 6 March 2024
- 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 are8 KB (1,189 words) - 06:39, 12 September 2013
- ...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 yea18 KB (2,822 words) - 11:00, 31 July 2015
- ...netometers require cooling with liquid [[helium]] (4.2 K) or liquid [[nitrogen]] (77 K) to operate, hence the packaging requirements to use them are9 KB (1,370 words) - 08:18, 12 September 2013
- ...nventional materials in the container help identify their content, such as nitrogen-rich compounds that might be explosives. Third, if fissionable materials ar9 KB (1,298 words) - 09:02, 4 May 2024
- ...] (DIPPR). <ref>Wagner W., "New vapour pressure measurements for argon and nitrogen and a new method for establishing rational vapour pressure equations.", Cry9 KB (1,383 words) - 09:41, 29 June 2023
- ...]] is primarily made up of [[diatomic]] gases with a composition of ~78% [[nitrogen]] (N<sub>2</sub>) and ~21% [[oxygen]] (O<sub>2</sub>). At 20 °C and an abs10 KB (1,457 words) - 16:09, 23 September 2013
- ...]] is primarily made up of [[diatomic]] gases with a composition of ~78% [[nitrogen]] (N<sub>2</sub>) and ~21% [[oxygen]] (O<sub>2</sub>). At 20 °C and an abs10 KB (1,459 words) - 16:10, 23 September 2013
- ''S. pneumoniae'' gains a substantial amount of carbon and nitrogen using [[extracellular enzyme systems]] which allow for the metabolism of po9 KB (1,183 words) - 07:31, 15 September 2013
- ...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. Most37 KB (5,836 words) - 05:36, 6 March 2024
- ...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 contaminate10 KB (1,396 words) - 04:19, 28 November 2013
- ...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 e17 KB (2,763 words) - 08:53, 2 March 2024
- ...tosynthesis]] and aggravates coral tissue. Excess nutrients, such as the [[nitrogen]] inputs from development, also promote macroalgal growth. When there is no8 KB (1,086 words) - 15:33, 8 March 2023
- * Fractional excretion of urea nitrogen < 35%. <ref name="pmid17900456">{{cite journal |author=Pépin MN, Bouchard9 KB (1,169 words) - 02:01, 29 October 2013
- ...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 gre8 KB (1,306 words) - 13:58, 20 December 2009
- ...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 refe12 KB (1,764 words) - 10:19, 30 July 2023
- ...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]] emissio42 KB (6,350 words) - 07:31, 20 April 2024
- ...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]] emissio42 KB (6,354 words) - 07:31, 20 April 2024
- ...ef><ref>Reading Chemical Fine Print: Resolution and Identification of 3000 Nitrogen-Containing Aromatic Compounds from a Single Electrospray Ionization Fourier10 KB (1,572 words) - 15:08, 16 November 2010
- ...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]21 KB (3,308 words) - 09:16, 6 March 2024
- ...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 elem19 KB (2,947 words) - 09:16, 6 March 2024
- ...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 refe12 KB (1,812 words) - 10:42, 8 April 2024
- ...racer|2000|p=12}}</ref><ref>{{Harvnb|Sapp|1994|p=142}}</ref> Examples are nitrogen-fixing [[bacterium|bacteria]] (called [[rhizobia]]) which live in [[root no10 KB (1,436 words) - 09:37, 6 March 2024
- ...with [[icosahdral]] symmetry. Poliovirus is composed of carbon, hydrogen, nitrogen, oxygen, phosphorus and sulphur.11 KB (1,588 words) - 14:48, 7 February 2009
- ...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 did31 KB (4,881 words) - 12:55, 15 March 2024
- ...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.18 KB (2,643 words) - 20:48, 17 April 2014
- ...another and as the world’s first successful “alchemist,” confirmed that [[nitrogen]] was transmuted into [[oxygen]]<ref> Nobel Biography [http://nobelprize.or10 KB (1,594 words) - 09:11, 12 October 2013
- :[[Nitrogen|N]]<sub>2</sub> + 3 [[Hydrogen|H]]<sub>2</sub> → 2 [[Ammonia|NH<sub>3]]</11 KB (1,592 words) - 09:15, 28 September 2013
- ...rbon dioxide]] (CO<sub>2</sub>), [[sulfur dioxide]] (SO<sub>2</sub>) and [[nitrogen oxide]]s (NO<sub>x</sub>). ...ts emitted by coal-fired power plants are sulfur dioxide (SO<sub>2</sub>), nitrogen oxides (NOx), particulate matter (PM), and [[mercury]] (Hg). Trace amounts46 KB (7,021 words) - 09:01, 4 May 2024
- ...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 g20 KB (2,784 words) - 10:08, 2 April 2009
- 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 remov11 KB (1,703 words) - 16:10, 10 February 2024
- 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 remov11 KB (1,670 words) - 16:11, 10 February 2024
- ...triethylsilyl [[free radical]] then reacts with the azide with expusion of nitrogen to a N-silylarylaminyl radical which grabs a proton from a thiol completing9 KB (1,169 words) - 02:10, 27 October 2013
- ...atile components from liquids. For example, steam and inert gases (such as nitrogen) have been and are being used for stripping liquids of undesirable, volatil11 KB (1,664 words) - 09:37, 6 March 2024
- ...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 [[ecosyst28 KB (4,152 words) - 00:34, 29 March 2009
- ...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 reg19 KB (3,015 words) - 10:07, 28 February 2024
- ...same areas.<ref>David D. Biesboer, Michael W. Binford, Alan Kolata. 1999. Nitrogen Fixation in Soils and Canals of Rehabilitated Raised-Fields of the Bolivian10 KB (1,473 words) - 10:12, 11 August 2009