The iron cycle (Fe) is the biogeochemical cycle of iron through the atmosphere, hydrosphere, biosphere and lithosphere. While Fe is highly abundant in...

sponge iron reaction (SIR) is a chemical process based on redox cycling of an iron-based contact mass, the first cycle is a conversion step between iron metal...

of iron ore is located The Mesabi Iron Range is the chief iron ore mining district in the United States. Iron and steel industry Iron cycle Iron nanoparticle...

The phosphorus cycle is the biogeochemical cycle that involves the movement of phosphorus through the lithosphere, hydrosphere, and biosphere. Unlike...

For chemical reactions, the iron oxide cycle (Fe3O4/FeO) is the original two-step thermochemical cycle proposed for use for hydrogen production. It is...

Oxidation Event Iron cycle Iron oxide nanoparticle Limonite List of inorganic pigments Cornell., RM.; Schwertmann, U (2003). The iron oxides: structure...

biogeochemical cycles include the carbon cycle, the nitrogen cycle and the water cycle. In each cycle, the chemical element or molecule is transformed and cycled by...

The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmospheric, terrestrial...

Marine biogeochemical cycles Marine biogeochemical cycles are biogeochemical cycles that occur within marine environments, that is, in the saltwater of...

important step in the biogeochemical cycle within the OMZ. Despite being phylogenetically diverse, the microbial ferrous iron oxidation metabolic strategy (found...

cycle – Glaciation – Gold cycle – Iodine cycle – Iron cycle – Lead cycle – Lithium cycle – Manganese cycle – Mass extinction cycles – Mercury cycle –...

Iron fertilization is the intentional introduction of iron-containing compounds (like iron sulfate) to iron-poor areas of the ocean surface to stimulate...

(10): 1465–1476. doi:10.1093/plankt/fbr041. Moore, J. Keith, et al. "Iron cycling and nutrient-limitation patterns in surface waters of the World Ocean...

lithium iron phosphate battery (LiFePO 4 battery) or LFP battery (lithium ferrophosphate) is a type of lithium-ion battery using lithium iron phosphate...

The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of the female reproductive system...

geochemical cycles: Deep water cycle Deep carbon cycle (is part of carbon cycle) Iron cycle Carbonate–silicate cycle Phosphorus cycle Sulfur cycle Rock cycle Mercury...

A Yuga Cycle (a.k.a. chatur yuga, maha yuga, etc.) is a cyclic age (epoch) in Hindu cosmology. Each cycle lasts for 4,320,000 years (12,000 divine years)...

The water cycle (or hydrologic cycle or hydrological cycle), is a biogeochemical cycle that involves the continuous movement of water on, above and below...

The citric acid cycle—also known as the Krebs cycle, Szent–Györgyi–Krebs cycle or the TCA cycle (tricarboxylic acid cycle)—is a series of biochemical...

cylinder is cycled to facilitate inhalation and exhalation. Devices like the Drinker, Emerson, and Both respirators are examples of iron lungs, which...

The carbon cycle is that part of the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere...

The Epic Cycle (Ancient Greek: Ἐπικὸς Κύκλος, romanized: Epikòs Kýklos) was a collection of Ancient Greek epic poems, composed in dactylic hexameter and...

acquisition of iron". Plant and Soil, volume 165, issue 2, pages 261–274. doi:10.1007/BF00008069 Petsch, S.T. (2014). "10.11 - The Global Oxygen Cycle". In Holland...

conclude that the stories of the Ulster Cycle preserved authentic Celtic traditions from the pre-Christian Iron Age. Other scholars have challenged that...

important part of the ocean's iron cycle. The advantageous relationship between krill and baleen whales increases the amount of iron that can be recycled and...

gas Industrial gas Integrated gasification combined cycle Partial oxidation Reformer sponge iron cycle Syngas fermentation Underground coal gasification...

ferrous iron (Fe2+) ions into ferric hydroxide (Fe(OH)3) during autotrophic growth, and thus have roles in the carbon cycle and the iron cycle. As such...

the carbon cycle through carbon fixation. Purple sulfur bacteria also contribute to the phosphorus cycle in their habitat, and the iron cycle. Through upwelling...

; Hall, M.B. (2006). "Density functional study of the catalytic cycle of nickel-iron NiFe hydrogenases and the involvement of high-spin nickel(II)". Journal...

The Iron Curtain Trail (ICT), also known as EuroVelo 13 (EV13), is a long-distance cycling route along the route of the former Iron Curtain, from the...