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Topic: Oxygen-16

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ions.htm Group 16 nonmetals have 2 s-type electrons and 4 p-type electrons which can by lost to oxygen under different conditions. 7+ s/p perbromate iodine IO 2+ p hypoiodite IO 3+ p iodite IO 5+ p iodate IO 7+ s/p periodate Group 16 nonmetals form oxyanions in the presence of oxygen. Group 15 nonmetals have 2 s-type electrons and 3 p-type electrons which can by lost to oxygen under different conditions. www.zianet.com /drbill/chem/ions.htm   (294 words)

Passenger emergency oxygen mask drop zone extender - Patent 4154237 The container 16 for stowage of the six emergency oxygen masks 15, which are required for the five-abreast seating, houses dual spring-cartridge, oxygen mask extender units 20, 20A, which are mounted onto the gooseneck type hinge arms 18 of the door 17 for the oxygen mask stowage container 16. An object of the present invention is to position an emergency oxygen mask from an overhead stowage area, such that it is within the normal reach radius of a seated passenger in an airplane compartment. In order to provide the most reliable device for deployment of the emergency oxygen masks 15, there must be the fewest number of parts in its functional logic or in the sequence of its operation; because, reliability depends upon the number of logic gates that have to be opened sequentially. www.freepatentsonline.com /4154237.html   (1548 words)

Oxygen and Free Radicals This discovery revealed a discrepancy between the accepted chemical scale of atomic weights which was based on the average weight of atmospheric oxygen (16 amu) and the physical scale based on the atomic weight of O16 (16 amu).(6) References: 1. The constant concentration of O2 in the atmosphere is maintained by the photosynthesis-respiration cycle...Oxygen occurring in nature is a mixture of three stable isotopes: O16, O17 and O18. Free Radicals and Their Relationship to Complex Oxidative Compounds G.A. Freibott International Association for Oxygen Therapies Priest River, ID, USA Reprinted with kind permission. www.sumeria.net /oxy/rad.html   (476 words)

Encyclopedia: Group 16 element The chalcogens are the name for the periodic table group 16 (old-style: VIB or VIA) in the periodic table. It consists of the elements oxygen (O), sulfur (S), selenium (Se), tellurium (Te), the radioactive polonium (Po), and the synthetic ununhexium (Uuh). It is sometimes known as the oxygen family. www.nationmaster.com /encyclopedia/Group-16-element   (232 words)

ACME Press Release 1 Oxygen is the chemical element in the periodic table that has the symbol O and atomic number 8. Oxygen is the third most abundant element found in the sun, and it plays a part in the carbon-nitrogen cycle, one process responsible for stellar energy production. The element is very common, found not only on Earth but throughout the universe, usually bound with other elements. www.thebigox.com /pr01.htm   (405 words)

Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations DEUTERONS/reactions (d,p$sub 1$) with oxygen-16, interference of stripping and compound-nucleus formation in, (T);OXYGEN ISOTOPES O-16/deuteron reactions (d,p$sub 1$) with, interference of stripping and compound-nucleus formation in, (T) Description/ Energy Citations Database (ECD) Document #4550714 - STRIPPING AND COMPOUND-NUCLEUS INTERFERENCE IN THE REACTION $sup 16$O(d,p$sub 1$) (E/sub d/ Availability information may be found in the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or via the "Full-text Availability" link. www.osti.gov /energycitations/product.biblio.jsp?osti_id=4550714   (117 words)

Oxygen toxicity - Wikipedia, the free encyclopedia Pulmonary oxygen toxicity is caused by exposure over 16 hours to partial pressures of 0.5 bar or more causing breathing difficulty and pain resulting in lung damage which may be irreversible. Oxygen toxicity or oxygen toxicity syndrome is severe hyperoxia caused by breathing oxygen at elevated partial pressures. Oxygen may be a contributing factor for the disorder called retinopathy of prematurity. en.wikipedia.org /wiki/Oxygen_toxicity   (510 words)

NASA - Liquid Oxygen (LOX) Feedline Bellows * Liquid oxygen is 16 times heavier than liquid hydrogen. The cold bellows shield surfaces are caused by the near minus-297 degree liquid oxygen in the feedline. There is a large pipe, known as the feedline, which runs from the liquid oxygen tank at the top of the External Tank to an umbilical at the bottom of the tank, which is connected to the Orbiter. www.nasa.gov /returntoflight/system/LOX_feedline_bellows.html   (477 words)

nitrox.txt Note that describing a material as oxygen compatible does not mean that the material is ready for use with pure oxygen, merely that the material itself is suitable, if properly prepared, for use with pure oxygen (see question [16]). Oxygen compatible refers to the materials comprising the equipment which is intended for use with pure oxygen. Oxygen toxicity is precisely what it suggests; oxygen poisoning the human body. www.aquanaut.com /misc/nitrox.txt   (5488 words)

Oxygen Safety The combination of oxygen tanks and cigarettes have sparked fires that since 1997 have killed 16 people in the state and caused severe burns or smoke inhalation in 20, said Coan. An additional danger of storing oxygen in a car trunk is that a fire occurring in the gas tank could heat the oxygen containers to the point where they would rupture. To keep my portable oxygen tank vertical and secure, I installed the two ends of an elastic tie down to the frame under the driver's seat so that its loop lies on the floor in front of the driver's seat. www.portableoxygen.org /o2safety.html   (2650 words)

Experimental and Clinical Cardiology Oxygen radicals are mutagenic (12,13), have direct effects on cell proliferation (16-18) and contribute to the carcinogenic process (14,15). Oxygen radicals, responsible for mutagenic and genotoxic events, are produced during the initiation phase (2). Oxygen radicals are mutagenic (12,13) and contribute to the carcinogenic process (14,15). www.pulsus.com /ecc/08_03/qure_ed.htm   (1176 words)

Dissolved Oxygen Sensor The Dissolved Oxygen Sensor is used in 16 experiments in 4 books and 1 innovative use. This is not the case with our Dissolved Oxygen Probe--disposable caps with pre-fit membranes allow you to quickly and conveniently change membranes. You can make fast, accurate measurements of dissolved oxygen concentration in water samples using our Dissolved Oxygen Probe. www.vernier.com /probes/probes.html?do-bta&template=standard.html   (1176 words)

ANTIOXIDANTE EFFECT IN VITRO OF THE HOMEOPATHIC MEDICINE ARSENICUM ALBUM, CUPRUM METALLICUM MANGANUM AND ZINCUM METALLICUM. - CELSO FERNANDES BATELLO The oxygen is the element that, in the periodic classification of the chemical elements, belongs to the family 6A, whose atomic number and atomic mass are 8 and 16 respectively, and it possesses 8 electrons distributed in its orbitary layers. The oxygen emergency must have been followed by the ozone layer appearance (O3) in the high atmosphere, and the absorption of the damage effects of the ultraviolet the evolution by the ozone, layer probably allowed the evolution of the most complex earth organism (Halliwell and Gutteridge, 1989). The molecules of diatomic oxygen in the earth atmosphere are the biggest ones to provoke reactions on the living cells. www.homeoint.org /portugues/batello/english.htm   (1176 words)

Continuous, In-Line Monitoring of Oxygen Saturation in Hemodialysis Intradialytic hypoxemia was studied via continuous, in-line monitoring of oxygen saturation (O2 Sat) in 16 patients during six independent 3- to 4-hour dialysis sessions (three patient treatments were aborted). Oxygen saturation values and time increments were recorded to computer disk every 10 seconds by the Crit-Line Instrument during the entire treatment session. Next, the saturation was held at a constant level while the blood was ultrafiltrated to change the hematocrit value. www.eneph.com /feature_archive/hemodialysis/v24n11p615.html   (1908 words)

Jim Scotti's Apollo page Apollo 13 was planned to land in the highlands of Fra Mauro, but an explosion in an oxygen tank 200,000 miles from Earth turned the flight into a fight for survival. Apollo 15 and Apollo 17 were the only flights that came close enough to get long distance oblique views of the most prominant rayed crater on the Moon. Apollo 14 astronaut Stu Roosa, the lonely 3rd member of the crew who stayed in orbit while his comrades landed on the moon, took a set of images of this interesting area which I have used to construct the following Anaglyph. pirlwww.lpl.arizona.edu /~jscotti/apollo.html   (3515 words)

Bibliography: Oxygen Oxygen: Is It A Miracle Drug For Divers, Ocean Realm, Fall, 1986, 13-16. Oxygen Therapy Equipment: A Theoretical Review, SPUMS, 28(3), Sept. 1998, 165-172. Oxygen Toxicity And Its Prevention In The Saturation Diving Associated With Project Flare, in J. Banbury (Ed.) PROCEEDINGS OF THE FIFTH ANNUAL SEMINAR ON CAVE DIVING, NACD, Miami FL. home.earthlink.net /~divegeeked/biblios/oxygen.htm   (2247 words)

Augusta Georgia: technology@ugusta: FDA warns ambulances about rare fires from oxygen tanks 02/05/99 At issue are high-pressure oxygen canisters, similar to those scuba divers use, found mostly in hospitals and ambulances. Its records show one patient was burned when an oxygen device strapped to her shoulder caught fire. WASHINGTON -- The valve on a type of oxygen tank commonly used in ambulances can explode and cause serious burns, the government warned Thursday as it moved to take the equipment off the market. chronicle.augusta.com /stories/020599/tec_fires.shtml   (570 words)

SPACE SUIT The suit systems must provide an artificial atmosphere (100-percent oxygen for breathing and for pressurization to 3.7 psi), adequate mobility (lunar gravity is one-sixth that of earth), micrometeorite and visual protective systems, and the ability to operate on the lunar surface for periods of 3 hours. Design of the Apollo spacecraft and suits will permit the crew to operateÄwith certain restraints in a decompressed cabin for periods as long as 115 hours. Insulation must protect the astronaut from temperatures varying from 250 degrees F above (lunar day) to 250 degrees below zero (lunar night). www.apollosaturn.com /asnr/p223-228.htm   (1957 words)

Lucent Technologies to be preferred supplier to Project OXYGEN TM global undersea network; contract estimated at $1 billion The OXYGEN Network will have a minimum throughput of 640 Gigabits per second (Gb/s) over long-haul submarine routes and carry at least 16 wavelengths, or channels, of information per fiber. Phase 1 of the OXYGEN network will be completed in 2002, with additional links including Northern Europe, the Mediterranean, Middle East, India, both coasts of South America, Australia, and Central America. CTR Group, based in New Jersey, created and launched Project OXYGEN. www.lucent.com /press/0598/980520.nsa.html   (891 words)

OXYGEN Oxygen is a much more massive element than hydrogen (the atomic weight of hydrogen is 1, that of oxygen is 16). Oxygen is less common than hydrogen, helium, and neon in the Universe, but by far the most common element on the Earth. When oxygen reacts with a fuel, the fuel is oxidised and becomes an oxide, sometimes turning into a solid, in other cases forming a gas such as carbon dioxide. www.atlanticeurope.com /Elements/Oxygen.html   (1443 words)

Data Fusion Pure oxygen is blown onto the surface of the molten metal at a speed of 16,000 cubic feet per minute. Basic Oxygen Steel making - BOS - is one of the two main processes used in the making of steel. The oxygen blown into the hot metal removes impurities by combining chemically with them. www.eng.man.ac.uk /mech/merg/research/datafusion.org.uk/applications/BOS-Corus.html   (1443 words)

Patent 4210442: Argon in the basic oxygen process to control slopping Oxygen is then blown into melt 5, from above the melt surface through lance 4, causing a depression 16 to form in the melt surface. Oxygen is used to decarburize the melt by reacting it with the carbon contained therein to form CO, which escapes from the vessel as a gas. Oxygen was blown at the reduced rate for a total of 21/2 minutes. www.freepatentsonline.com /4210442.html   (1443 words)

Basic oxygen steel furnace and process - Patent 4040819 The reaction within the oxygen furnace 11 is extremely violent and large volumes of off-flow gases 21 escape through the mouth 16 of the oxygen furnace 11 in the form of a large flame cone 22. Oxygen is then blown through the lance at a relatively high rate which results in a blowing aside a portion of the slag layer, thereby allowing the oxygen to interact directly with the metal charge. The oxygen which is blown through the lower openings 17 in the bottom of the oxygen lance 15 interacts with the carbon impurities within the metal charge 12 to form carbon monoxide and carbon dioxide. www.freepatentsonline.com /4040819.html   (2506 words)

From biological communities to chemical properties of river water Chemical samples contain the measured values of 16 physical an chemical parameters: biological oxygen demand (BOD), chlorine concentration (Cl), CO2 concentration, electrical conductivity, chemical oxygen demand COD (K2Cr2O7 and KMnO4), concentrations of ammonia (NH4), NO2, NO3 and dissolved oxygen (O2), alkalinity (pH), PO4, oxygen saturation, SiO2, water temperature, and total hardness. The models for the most important indicators of pollution (ammonia, biological oxygen demand, chemical oxygen demand) had the best predictive power. The problem of inferring the chemical properties from the biota is practically relevant, especially in countries where extensive biological monitoring is conducted. www-ai.ijs.si /~ilpnet2/apps/pcfromb.html   (2506 words)

GlaxoSmithKline Environment, Health & Safety Report 2002 - Wastewater Wastewater quality is measured by Chemical Oxygen Demand (COD) which is a measure of the oxygen required to chemically oxidise organic and inorganic compounds present in the water. In 2002, the COD of wastewater was 23.2 million kilograms, a 16% decrease from 2001 attributable to factors such as upgrades to site wastewater treatment operations, improved reporting and the revision of the boundaries for reporting of COD to include offsite treatment. COD is therefore an indirect measure of the foulness of wastewater. www.gsk.com /financial/reps02/EHS02/GSKehs-50.htm   (2506 words)

Bibliography: Oxygen Oxygen: Is It A Miracle Drug For Divers, Ocean Realm, Fall, 1986, 13-16. Oxygen Toxicity And Its Prevention In The Saturation Diving Associated With Project Flare, in J. Banbury (Ed.) PROCEEDINGS OF THE FIFTH ANNUAL SEMINAR ON CAVE DIVING, NACD, Miami FL. The Use of Oxygen In Decompression, in I. Nashimoto and E. Lanphier (Eds.) DECOMPRESSION IN SURFACE-BASED DIVING, UHMS, Bethesda, MD. 1987, 13-19. home.earthlink.net /~divegeeked/biblios/oxygen.htm   (2506 words)

Achromatic limited - ATI advanced autoclean dissolved oxygen analysers New Achromatic ATI advanced autoclean dissolved oxygen analysers installed by Achromatic at a Scottish Water wastewater treatment plant now running in excess of a year without maintenance Achromatic limited - ATI advanced autoclean dissolved oxygen analysers Note how the whole submerged head is completely fouled after a continuous period of 16 months uninterrupted operation without maintenance - BUT the sensor surface is totally clean due to the excellent robust in-situ titanium nozzle programmable high power cleaning system www.wateranalysers.com /dissolved_oxygen_analysers.htm   (2506 words)

Oxygen and evolutionary patterns in the sea: Onshore/offshore trends and recent recruitment of deep-sea faunas -- Jacobs and Lindberg 95 (16): 9396 -- Proceedings of the National Academy of Sciences Oxygen and evolutionary patterns in the sea: Onshore/offshore trends and recent recruitment of deep-sea faunas -- Jacobs and Lindberg 95 (16): 9396 -- Proceedings of the National Academy of Sciences Oxygen and evolutionary patterns in the sea: Onshore/offshore trends and recent recruitment of deep-sea faunas oxygenation in the sea, and normal marine faunas may have retreated www.pnas.org /cgi/content/full/95/16/9396   (2506 words)

Chemical Oxygen Demand (COD) PCcompact vario Photometer COD (Chemical Oxygen Demand) is an important parameter in the assessment of waste water quality. A standard chemical composition and 16 mm tube diameter means that Aqualytic COD-tube tests can be used in other brands of photometers. It includes the PCcompact COD vario photometer, two sets of tube tests for the range 0-150 mg/l and 0-1500 mg/l, the COD-Reactor AL 32 and a stand for tubes. www.process-controls.com /Metex/Aqualytic/cod_pccod.htm   (2506 words)

JAWMA Paper: Determination of Schulze Equation for Chemical Oxygen Demand Reduction Using Stabilized Landfill Refuse Media Overall, 16 runs with various organic loadings were tested and the results demonstrated that the stabilized refuse had excellent capability in removing chemical oxygen demand (COD). Determination of Schulze Equation for Chemical Oxygen Demand Reduction Using Stabilized Landfill Refuse Media The COD removal efficiency reached 95% at a depth of 60 cm at Q = 8 L/day for the initial COD of ~6000 mg/L and the efficiency increased to ~99% at a depth of 90 cm (organic loading of 0.69 kg/m3/day). www.awma.org /Journal/ShowAbstract.asp?Year=&PaperID=1337   (2506 words)

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