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Encyclopedia results for Dissolved gas analysis

Dissolved gas analysis





Encyclopedia results for Dissolved gas analysis

  1. Dissolved gas analysis

    refimprove date October 2011 Dissolved gas analysis DGA is the study of dissolved gases in insulating ... DISSOLVED GAS ANALYSIS OF MINERAL OIL INSULATING FLUIDS accessdate November 2, 2011 ref The collection and analysis of gases in an oil insulated transformer was discussed as early as 1928. Many years of empirical and theoretical study have gone into the analysis of transformer fault gases. DGA usually consists of three steps Sampling, extraction, analysis. Modern technology is changing this process ... title Dissolved Gas Analysis first last work year 2005 last update accessdate November 21, 2011 ref The insulating fluid is in contact with most internal components and by evaluating the dissolved ... 457 dissolved gas analysis title Using Dissolved Gas Analysis to Detect Active Faults in Oil Insulated ... Read 457 dissolved gas analysis title Using Dissolved Gas Analysis to Detect Active Faults ... 18&Itemid 507 title DISSOLVED GAS ANALYSIS DGA OF INSULATING FLUIDS accessdate November 21, 2011 ref ... web url http www.netaworld.org files neta journals NWwtr09 Hamrick.pdf title Dissolved Gas Analysis for Transformers accessdate November 21, 2011 ,Lynn Hamrick, Dissolved Gas Analysis for Transformers ... condition as it is inside a transformer with all fault gases dissolved in it. It is a gas tight borosilicate ... they are then sent to the gas chromatograph . Analysis Chromatographic Analysis is a method of separating ... to the type of electrical fault, and the rate of gas generation can indicate the severity of the fault ... the oil into Sample oil burette of the Multiple Gas Extractor without any exposure to atmosphere, thereby retaining all its dissolved and evolved fault gases contents. It has a septum arrangement ... The DGA technique involves extracting or stripping the gases from the oil and injecting them into a gas chromatograph GC . Detection of gas concentrations usually involves the use of a flame ionization ... most of the gas from the oil. The gas was then collected and measured in a graduated tube by breaking ...   more details



  1. Gas analysis

    Gas analysis could refer to any of the following Arterial blood gas Blood gas analysis a method that measures arterial oxygen tension, carbon dioxide tension, and other aspects of a blood sample Breath gas analysis a non invasive method that measures volatile organic compounds present in the exhaled breath Dissolved gas analysis a method that measures dissolved gases in insulating fluids Evolved gas analysis a method that measures the gas evolved from a heated sample that undergoes decomposition or desorption Gas blending Gas analysis Gas analysis of blended gases in diving cylinders Mass spectrometry Trace gas analysis Trace gas analysis as an application of mass spectrometry disamb Category Scientific techniques ...   more details



  1. Evolved gas analysis

    Evolved gas analysis EGA is a method used to study the gas evolved from a heated sample that undergoes decomposition or desorption. It is possible to detect which gas is evolved using evolved gas detection EGD . EGD is often performed by coupling EGA with mass spectrometry , Fourier transform spectroscopy , gas chromatography , or Optical In Situ Evolved Gas Analysis. By coupling the thermal analysis instrument, e. g. TGA Thermogravimetry or DSC Differential scanning calorimetry , with a fast Quadrupole Mass Spectrometer QMS the detection of gas separation and identification of the separated components are possible in exact time correlation with the other thermal analysis signals. DSC TGA QMS or TGA QMS yields information on the composition mass numbers of elements and molecules of the evolved gases. It allows fast and easy interpretation of atomic inorganic vapors and standard gases like H sub 2 sub , H sub 2 sub O, CO sub 2 sub , etc. Fragmentation, interpretation of organic molecules is sometimes difficult. ref name Netzsch NETZSCH Ger tebau, Germany ref The combination with an FTIR Fourier Transform Infrared Spectrometer has become popular, especially in the polymer producing, chemical and pharmaceutical industry. ref http www.netzsch thermal analysis.com en products gas analysis couplings ref DSC TGA FTIR or TGA FTIR yields information on the composition absorption bands of the evolved gases bonding conditions . The advantage is an easy interpretation spectra data bases of organic vapors without fragmentation. Symmetrical molecules can not be detected. ref name Netzsch An EGA instrument named the Thermal and Evolved Gas Analyzer was flown on the Phoenix Lander probe that reached Mars in May 2008. Its purpose was to study Martian soil samples. References references Category Instrumental analysis chem stub ...   more details



  1. Breath gas analysis

    Breath gas analysis is a method for gaining non invasive information on the clinical state of an individual by monitoring volatile organic compound s present in the exhaled breath . Breath gas concentration can then be related to blood concentrations via mathematical modeling as for example in blood alcohol testing. History The area of modern breath testing commenced in 1971, when Nobel Prize winner Linus Pauling demonstrated that human breath is a complex gas, containing more than 200 different volatile organic compounds. However, physicians have used breath analysis since the days of Hippocrates . ref Anil S. Modak Single time point diagnostic breath tests a review , J. Breath Res. 4 2010 , 017002 http dx.doi.org 10.1088 1752 7155 4 1 017002 ref Overview Endogenous volatile organic compounds VOCs are released within the human organism as a result of normal metabolism metabolic activity ... modeling for breath gas analysis, 3. Forschungsforum der sterreichischen Fachhochschulen, Wien 2011 ... Hinterhuber, and Anton Amann A mathematical model for breath gas analysis of volatile organic compounds ... 010 0398 9 ref Applications Breath gas analysis is used in a number of breath test s. Asthma detection ... Journal of Breath Research DEFAULTSORT Breath Gas Analysis Category Breath tests Category Mathematical ... disease biomarker s can be seen as the driving force for the analysis of exhaled breath. Moreover ... mechanisms underlying pulmonary gas exchange . Even under resting conditions exhaled breath concentrations ... blood concentration levels. The simplest model relating breath gas concentration to blood concentrations was developed by Farhi ref Leon E. Farhi Elimination of inert gas by the lung, Respiration Physiology ... gas in the alveolar air depends on the mixed venous concentration math C bar v math , the substance ... Analytical instruments Breath analysis can be done with various forms of mass spectrometry, but there are also simpler methods for specific purposes, such as the Halimeter and the breathalyzer . Gas ...   more details



  1. Dissolved load

    Dissolved load is the term for material, especially ion s from Weathering Chemical weathering chemical weathering , that are carried in solution by a stream . The dissolved load contributes to the total amount of material removed from a Drainage basin catchment . The amount of material carried as dissolved load is typically much smaller than the suspended load , though this is not always the case. Dissolved load comprises a significant portion of the total material flux out of a landscape, and its composition is important in regulating the chemistry and biology of the stream. See also Sediment Sediment transport Rouse number Bed load Suspended load Wash load References http walrus.wr.usgs.gov infobank programs html school moviepage 18.01.13.html USGS CMG InfoBank Suspended and Dissolved Loads DEFAULTSORT Dissolved Load Category Geology Category Hydrology geomorph stub ...   more details



  1. Dissolved silica

    Dissolved silica DSi is the form of water soluble silica as silicon hydroxide equivalent to the old term silicic acid , which can be measured by standard analyses e.g. Strickland and Parsons, 1972 . However, The term dissolved silica is different from the silicate occurring as silicate minerals , which is a class of minerals forming rings, sheets, chains, and tetrahedrons. Likewise, the term dissolved silica is different from the term silicone , which is organic polymers of silicon . There exist three different species of DSi in natural waters SiO sub 2 sub OH sub 2 sub sup 2 sup SiO OH sub 3 sub sup sup Si OH sub 4 sub Marine diatoms transport Si OH sub 4 sub DelAmo and Brzezinski, 2000 . In the uppermost water column the surface ocean is undersaturated with respect to DSi, except for the Antarctic Circumpolar Current south of 55 S. Image Levitus94 10m.gif DSi is regenerated with increasing water depth, and DSi values increase along the conveyor belt from the Atlantic over the Indian into the Pacific Ocean. Image Levitus94 1000m.gif Image Z bar.gif Those figures have been drawn using the interactive web site ref name http iridl.ldeo.columbia.edu SOURCES .LEVITUS94 http iridl.ldeo.columbia.edu SOURCES .LEVITUS94 http iridl.ldeo.columbia.edu SOURCES .LEVITUS94 ref which feeds on annual DSi values from LEVITUS94 World Ocean Atlas 1994, an atlas of objectively analyzed fields of major ocean parameters at the annual, seasonal, and monthly time scales . Superseded by WOA98. Edited by Syd Levitus. References Reflist Category Oceanography Category Silicon Category Aquatic ecology ...   more details



  1. Dissolved and Effused

    Expand Czech topic culture date August 2010 Rozpu t n a vypu t n Unreferenced date October 2011 Hide infobox until needed Infobox film name image alt caption director producer writer starring music cinematography editing studio distributor released runtime country language budget gross Dissolved and Effused lang cs Rozpu t n a vypu t n is a 1985 Czechoslovak comedy film directed by Ladislav Smoljak . External links IMDb title 0088021 Category 1980s comedy films Category 1985 films Category Czechoslovak films Category Films directed by Ladislav Smoljak CzechRepublic film stub cs Rozpu t n a vypu t n ...   more details



  1. Gas

    of gas particles. The resulting statistical analysis of this sample size produces the average behavior ... composition. For most applications, such a detailed analysis is excessive. Examples where Real Gas ...pp move indef About the physical properties of gas as a state of matter the uses of gases, and other meanings Gas disambiguation Textbook article date January 2010 File Gas particle movement.svg right thumb Gas phase particles atoms , molecule s, or ion s move around freely in the absence of an applied electric field . Gas is one of State of matter The three classical states the three classical states ... into a gas at its boiling point , and if heated high enough would enter a plasma physics plasma state in which the electrons are so energized that they leave their parent atoms from within the gas. A pure gas may be made up of individual atoms e.g. a noble gas or atomic gas like neon , chemical ... molecules made from a variety of atoms e.g. carbon dioxide . A gas mixture would contain a variety of pure gases much like the Earth s Atmosphere air . What distinguishes a gas from liquids and solids is the vast separation of the individual gas particles. This separation usually makes a colorless gas invisible to the human observer. The interaction of gas particles in the presence of electric and gravitational ... releases 2009 11 091104140812.htm Quantum Gas Microscope Offers Glimpse Of Quirky Ultracold ... low temperatures are classified by their statistical behavior as either a Bose gas or a Fermi gas . For a comprehensive ... The word gas is a neologism first used by the early 17th century Flemish people Flemish chemist Jan ..., chaos meant something like ultra rarefied water . ref name et OEtymD gas ref Physical characteristics ... clues to the movement of the surrounding gas. As most gases are difficult to observe directly with our ... relationship among these properties expressed by the ideal gas law see simplified models section below . Gas particles are widely separated from one another, and as such are not as strongly intermolecularly ...   more details



  1. Dissolved air flotation

    Dissolved air flotation DAF is a water treatment process that clarifies wastewater s or other waters by the removal of suspended matter such as oil or solids. The removal is achieved by dissolving air in the water or wastewater under pressure and then releasing the air at atmospheric pressure in a flotation tank or basin. The released air forms tiny bubbles which adhere to the suspended matter causing the suspended matter to float to the surface of the water where it may then be removed by a skimming device. ref name Aqueous cite book author Beychok, Milton R. title Aqueous Wastes from Petroleum and Petrochemical Plants edition 1st publisher John Wiley & Sons year 1967 id Library of Congress Control Number LCCN 67019834 ref ref cite book author Lawrence K. Wang, Yung Tse Hung, Howard H. Lo and Constantine Yapijakis title Handbook of Industrial and Hazardous Wastes Treatment edition 2nd publisher CRC Press year 2004 isbn 0 8247 4114 5 ref ref Cite journal editor last Kiuru editor first H. editor2 last Vahala editor2 first R. contribution Dissolved air flotation in water and waste water treatment title International conference on DAF in water and waste water treatment No. 4, Helsinki, Finland year 2000 publisher IWA Publishing, London isbn 1 900222 81 7 ref Dissolved air flotation is very widely used in treating the industrial wastewater effluent s from Oil refinery oil refineries , petrochemical and chemical plant s, Natural gas processing natural gas processing plants , paper ... Gas Flotation induced gas flotation is also used for wastewater treatment. Froth flotation is commonly used in the processing of mineral ores. In the oil industry , dissolved gas flotation DGF units do not use air as the flotation medium due to the explosion risk. Natural gas is used instead to create the bubbles. Process description Image DAF Unit.png thumb right 406px A typical dissolved air ... wastewater treatment API oil water separator Flotation process Induced Gas Flotation References ...   more details



  1. Winkler test for dissolved oxygen

    Wikibooks School Science Winkler test for dissolved oxygen The Winkler test is used to determine the concentration of dissolved oxygen in water samples. Dissolved oxygen D.O. is widely used in water quality studies and routine operation of water reclamation facilities. An excess of manganese II salt, iodide I sup sup and hydroxide OH sup sup ions is added to a water sample causing a white precipitate of Mn OH sub 2 sub to form. This precipitate is then oxidized by the dissolved oxygen in the water sample into a brown manganese precipitate. In the next step, a strong acid either hydrochloric acid or sulfuric acid is added to acidify the solution. The brown precipitate then converts the iodide ion I sup sup to iodine . The amount of dissolved oxygen is directly proportional to the titration of iodine with a thiosulfate solution. ref name Numako cite journal author Chiya Numako and Izumi Nakai title XAFS studies of some precipitation and coloration reaction used in analytical chemistry journal Physica B Condensed Matter volume 208 209 pages 387 388 year 1995 doi 10.1016 0921 4526 94 00706 ... cber.188802102122 ref The amount of dissolved oxygen is a measure of the biological activity of the water ... respiration . The result of these two mechanisms determines the concentration of dissolved oxygen ... hydroxide 70 is added to create a pinkish brown precipitate. In the alkaline solution, dissolved oxygen ... O sub 6 sub sup 2 sup aq 2 I sup sup aq Analysis From the above stoichiometric equations, we can find ... for measurement of dissolved oxygen have widely supplanted the routine use of the Winkler test, although ... oxygen demand BOD sub 5 sub , several dilutions of a sample are analyzed for dissolved oxygen ... of sewage or other polluted waters. The BOD sub 5 sub test is an example of analysis that determines ... Atmospheric and Planetary Sciences 12 097January IAP 2006 35FAFFC3 135B 4266 93B4 2144F7487004 0 dissolved ... For Dissolved Oxygen Category Aquatic ecology Category Water quality indicators Category Oxygen ar ...   more details



  1. Gas Gas

    Multiple issues peacock December 2009 refimprove December 2009 Gas Gas is also a song from the Croatian musician Severina Album Zdravo Marijo . File Gas Gas EC 300 2009.jpg thumb 2008 Gas Gas EC Racing edition with full Ohlins suspension. Gas Gas is a Spain Spanish motorcycle manufacturer, specialising in off road motorbikes. Gas Gas are best known for their extremely popular Motorcycle Trials trials bikes, although they also make successful enduro and all terrain vehicles quad bikes . Gas Gas emerged ... Gas Gas Raga edition trials Bike. Gas Gas have manufactured and sold motorcycles since 1985. They are leaders ... date February 2011 A majority of the Gas Gas models are still handbuilt at the Gas Gas factory in Salt, Girona Salt near Girona , Spain . Gas Gas began manufacturing trials bikes in 1985, enduro ... Ggpaddock.jpg left thumb Gas Gas trials paddock, Duluth, MN 2004. In 1993, Gas Gas succeeded in luring ..., 1994 and 1995 for Gas Gas. More recently Gas Gas have won the Trial Outdoor World Championship twice ... indoortrial.com ref Gas Gas have also achieved success at the highest level in the World ..., British Enduro Champion Wayne Braybrook , riding a Gas Gas, was one of only two riders to finish all ... of the name The name Gas Gas literally means to gas it to accelerate, give it the gas, turn the throttle to go faster. The Gas Gas founders have, at times, expressed misgivings about the chosen name inasmuch as that name causes confusion outside Spain. Others have joked that Gas Gas are so good that they had to name them twice. The slogan Gas Gas Fast Fast was used by the US importer, Gas Gas North America, from 1999 2002 to try and help people understand the unique name. Importing Gas Gas ... 2005 MC 250 Motocross bike. While the EC Endurocross and MC motocross models are shipped worldwide, Gas Gas have manufactured specialized models for the United States off road market. The XC Cross Country ... to the EC line. Quads File Gas Gas Wild HP 240.jpg thumb 2005 Gas Gas Wild HP240 Quad. The Gas Gas ...   more details



  1. Analysis

    Other uses Wiktionary Analysis analysis Analysis is the process of breaking a complexity complex topic ... analysis as a formal concept is a relatively recent development. ref http plato.stanford.edu entries analysis Analysis ref The word is a transcription of the ancient Greek language Greek analusis ...?term analysis Online Etymology Dictionary ref As a formal concept, the method has variously ... . Applications Chemistry See also Analytical chemistry List of chemical analysis methods The field of chemistry uses analysis in at least three ways to identify the components of a particular chemical compound qualitative analysis , to identify the proportions of components in a mixture quantitative analysis , and to break down chemical process es and examine chemical reaction s between chemical element elements of chemical matter matter . For an example of its use, analysis of the concentration ... activation analysis neutron activation to develop discrete measurements within vast samples. A matrix chemical analysis matrix can have a considerable effect on the way a chemical analysis is conducted and the quality of its results. Analysis can be done manually or with a analyser device . Chemical analysis is an important element of national security among the great power major world powers with Materials ... See also Isotope analysis Isotope geochemistry Chemists can use isotope s to assist analysts with issues ... of environmental radioactivity . Business Financial statement analysis the analysis of the accounts and the economic prospects of a firm Fundamental analysis a stock valuation method that uses financial analysis Technical analysis the study of price action in securities markets in order to forecast future prices Business analysis involves identifying the needs and determining the solutions to business problems Price analysis involves the breakdown of a price to a unit figure Market analysis ... Computer science Requirements analysis encompasses those tasks that go into determining the needs ...   more details



  1. Gas-s-s-s

    Unreferenced date December 2010 Infobox Film name Gas S S S image Gas s s s.jpg caption director Roger Corman producer Roger Corman writer George Armitage narrator starring Robert Corff br Elaine Giftos br George Armitage br Alex Wilson music Country Joe & the Fish br Barry Melton cinematography Ron Dexter editing George Van Noy distributor American International Pictures released 1971 runtime 79 min. country USA language English language English budget preceded by followed by Gas s s s also known as Gas or It Became Necessary to Destroy the World in Order to Save It is a 1971 motion picture produced and released by American International Pictures . It was movie producer producer Roger Corman s final film for AIP, before leaving to found his own New World Pictures . It was Corman s last film as director for eighteen years. The movie is a post apocalyptic dark comedy , about survivors of an accidental military gas leak , of an experimental agent that kills everyone on Earth over the age of twenty five. A cartoon title sequence shows a John Wayne esque Army General announcing  and denouncing  the accident the story picks up after the victims have died. The lead characters, Coel and Cilla, were played by Bob Corff and Elaine Giftos , and the cast features Ben Vereen , Cindy Williams , Bud Cort and Talia Shire credited as Tally Coppola in early roles. Country Joe McDonald makes an appearance, as spokesman AM Radio . Gas s s s found a fresh airing on late night television in the 1980s, and was recently 2005 issued on DVD , as a double feature with Wild in the Streets , another AIP movie. See also Jeremiah TV series Jeremiah , a 2002 TV series set in a post apocalyptic future where most of the adult population has been wiped out by a deadly virus based on the 1979 Belgian ... Gas S S S Roger Corman Category 1971 films Category English language films Category American International ... films sf film stub it Gas, fu necessario distruggere il mondo per poterlo salvare ru ...   more details



  1. Dissolved organic carbon

    refimprove date October 2009 Dissolved organic carbon DOC is a broad classification for organic molecule s of varied origin and composition within aquatic systems. The dissolved fraction of organic carbon is an operational classification. Many researchers use the term dissolved for compounds below 0.45 micrometer s, but 0.22 micrometers is also common, saving colloid al for higher concentrations. A practical definition of dissolved typically used in marine chemistry is all substances that pass through a GF F filter. The recommended measure technique is the Total organic carbon High temperature catalytic oxidation HTCO technique after filtration on precombusted glass fiber filters, typically GF F filters. ref cite book last Knap, A. Michaels, A. Close, A. Ducklow, H. Dickson, A. title Protocols for the Joint Global Ocean Flux studies JGOFS core measurements year 1994 publisher JGOFS url http ijgofs.whoi.edu Publications Report Series reports.html ref DOC in marine and freshwater systems is one of the greatest cycled reservoirs of organic matter on Earth. The source of DOC depends on the body of water. In general, organic carbon compounds are a result of decomposition processes from dead organic matter such as plants. When water contacts highly organic soils, these components can drain into rivers and lakes as DOC. DOC is also extremely important in the transport of metal s in aquatic systems. Metals form extremely strong Coordination complex complexes with DOC, enhancing metal ..., Ducklow, Hugh W. title High turnover rates of dissolved organic carbon during a spring phytoplankton ..., within soil, forests, and wetlands of organic matter. Dissolved organic carbon has a high proportion of biodegradable dissolved organic carbon BDOC in first order streams compared to higher order streams ... to undesirable biological regrowth within water distribution systems. See also Colored dissolved ... Stone References Reflist DEFAULTSORT Dissolved Organic Carbon Category Environmental chemistry Category ...   more details



  1. Total dissolved solids

    dissolved solids arise from the weathering and dissolution of rocks and soils. The United States has ... water. Total dissolved solids are differentiated from total suspended solids TSS , in that the latter .... The term settleable solids refers to material of any size that will not remain suspended or dissolved ... total dissolved solids are gravimetry and Conductivity electrolytic conductivity . Gravimetric ... is directly related to the concentration of dissolved ionized solids in the water. Ions from the dissolved solids in water create the ability for that water to conduct an electrical current , which ... , Nevada receives dissolved solids from the Truckee River . Hydrologic transport models are used ... to more comprehensively evaluate total dissolved solids within a catchment basin and dynamically along ... osmosis water treatment systems. Typically, in these applications, total dissolved solids ... of each species native environment. For hydroponic uses, total dissolved solids is considered one ... exposure. ref Position Paper on Total Dissolved Solids , State of Iowa, IAC 567 61.3 2 g et sequitur ... with high total dissolved solids concentrations. ref name hogan papineau For terrestrial animals, poultry ..., high turbidity , or reduced dissolved oxygen with the latter stressor acting only in the case of animalia ... engr chem tds.html Total dissolved solids fact sheet New Mexico State University Chemical solutions ...   more details



  1. Colored dissolved organic matter

    Colored dissolved organic matter CDOM is the optically measurable component of the dissolved organic matter in water. Also known as chromophoric dissolved organic matter, yellow substance , and gelbstoff , CDOM occurs naturally in aquatic environments primarily as a result of tannin stained waters tannins released from decaying detritus . CDOM most strongly absorbs short wavelength light ranging from blue to ultraviolet , whereas pure water absorbs longer wavelength red light. Therefore, non turbid water with little or no CDOM appears blue. The color of water will range through green, yellow green, and brown as CDOM increases. Significance of CDOM CDOM can have a significant effect on biological activity in aquatic systems. CDOM diminishes light as it penetrates water. This has a limiting effect on photosynthesis and can inhibit the growth of phytoplankton populations, which form the basis of oceanic food chains and are a primary source of atmospheric oxygen . CDOM also absorbs harmful UVA B radiation, protecting organisms from DNA damage. Absorption of UV radiation causes CDOM to bleach , reducing its optical density and absorptive capacity. This bleaching photodegradation of CDOM produces both low molecular weight organic compounds which may be utilized by microbes, and reactive oxygen species, which may damage tissues and alter the bioavailability of limiting trace metals. CDOM also interferes with the use of satellite spectrometer s to remotely estimate phytoplankton population distribution. As a byproduct of photosynthesis, chlorophyll is a key indicator of phytoplankton activity. However, CDOM and chlorophyll both absorb in the same spectral range so it is difficult to differentiate between the two. Although variations in CDOM are primarily the result of natural processes, human activities such as logging, agriculture, effluent discharge, and wetland drainage can .... See also Blackwater river Color of water Dissolved organic carbon DOC Ocean turbidity Secchi disk ...   more details



  1. List of dissolved districts of Japan

    Cleanup date May 2008 A district of Japan is dissolved when all towns or villages in the district become cities or are merged into the city. The following is a list of dissolved districts of Japan . The date shown is the day the district was dissolved i.e. the district was active until that date and the reason why the district was dissolved is also shown. Expand list date August 2008 Before Edo Period Unknown Suruga District, Suruga Suruga District , Suruga, Tokaido Renamed to Sunt District, Shizuoka Sunt District Unknown Kudara District, Settsu Kudara District , Settsu, Merged into either Higashinari District, Osaka Higashinari and Sumiyoshi District, Osaka Sumiyoshi Districts Unknown Nuttari District, Echigo Nuttari District , Echigo, Hokurikudo Merged into Kanbara District, Echigo Kanbara District Sengoku Era Hiuchi District, Mutsu Hiuchi District , Mutsu, Tozando Merged into Akita District, Ugo Akita District in Dewa Province Sengoku Era Ogashima District, Dewa Ogashima District , Dewa, Tozando Merged into Akita District, Ugo Akita District Sengoku Era Yamada District, Owari Yamada District , Owari, Tokaido Split and merged into Kasugai District, Owari Kasugai and Aichi District, Aichi Aichi Districts Early Edo Period Hanawa District, Mutsu Hanawa , Hiraka District, Mutsu Hiraka , and Inaka District, Mutsu Inaka Districts, Mutsu, Tozando Merged to form Tsugaru District, Mutsu Tsugaru District Early Edo Period Hiyama District, Dewa Hiyama District , Dewa, Tozando Renamed to Yamamoto District, Akita Yamamoto District Early Edo Period Toshima District, Dewa Toshima District , Dewa, Tozando Renamed to Kawabe District, Akita Kawabe District Early Edo Period Yamamoto District, Dewa Yamamoto District , Dewa, Tozando Renamed to Senboku District, Akita Senboku District Early Edo Period Yuza District, Dewa Yuza District , Dewa, Tozando Renamed to Akumi District, Yamagata Akumi District Early Edo Period Kujibiki District ...   more details



  1. Volcanic gas

    rock s, dissolved or dissociated gas es in magma and lava , or gases emanating directly from lava or indirectly ... s. Hot springs on volcanoes often show a measurable amount of magmatic gas in dissolved form. Composition ... Volcanic gases can be sensed measured in situ or sampled for further analysis. Volcanic gas sensing can be within the gas by means of electrochemical sensors and flow through infrared spectroscopy infrared spectroscopic gas cells outside the gas by ground based or airborne remote spectroscopy e.g., COSPEC, FLYSPEC, DOAS, FTIR Volcanic gas sampling is often done by a method involving an evacuated ... atmosphere releases high temperature volcanic gas 400 C . In explosive volcanic eruption s, sudden ... gas release occurs during quasi continuous quiescent phases of active volcanism. Low temperature volcanic gases and hydrothermal systems If the magmatic gas traveling upward encounters meteoric ... systems, low temperature volcanic gases 400 C are either emanating as steam gas mixtures or in dissolved form in hot springs . At the ocean floor, such hot supersaturated hydrothermal ... seawater . Non explosive volcanic gas release The gas release can occur by advection through fractures ... DDS . At sites of advective gas loss, precipitation of sulfur and rare salts forms sulfur deposits ... from volcano to volcano. Water vapor is consistently the most common volcanic gas, normally ... . Other methods include collection in evacuated empty containers, in flow through glass tubes, in gas ... techniques for gas samples comprise gas chromatography with thermal conductivity detection TCD ..., and various wet chemical techniques for dissolved species e.g., acidimetric titration for dissolved ... gas monitoring is a standard tool of any volcano observatory . Unfortunately, the most precise ... Some volcanic gases kill by acidic corrosion others kill by asphyxiation . The greenhouse gas ... Category Volcanology Link GA cs cs Sope n plyny de Vulkanisches Gas et Vulkaaniline gaas es Gas ...   more details



  1. Gas chromatography

    refimprove date March 2012 Infobox chemical analysis name Gas chromatography image gaschromatograph.jpg caption A gas chromatograph with a headspace sampler acronym GC classification Chromatography analytes ..., and oversaw much of Prior s work. GC analysis A gas chromatograph is a chemical analysis instrument ... gas linear velocity affects the analysis in the same way that temperature does see above . The higher ... liquid chromatography hyphenated Gas chromatography mass spectrometry Gas chromatography GC , is a common ... gas.com international web lg spg like35lgspg.nsf docbyalias anal gaschrom title Gas Chromatography publisher Linde AG accessdate 11 March 2012 ref In gas chromatography, the mobile phase or moving phase is a carrier gas , usually an inert gas such as helium or an Reactivity chemistry unreactive gas ... column used in distillation . The instrument used to perform gas chromatography is called a gas chromatograph or aerograph , gas separator . The gaseous compounds being analyzed interact with the walls ... times is what gives GC its analytical usefulness. Gas chromatography is in principle similar to column ... of separating the compounds in a mixture is carried out between a liquid stationary phase and a gas ... phase is a liquid. Hence the full name of the procedure is Gas liquid chromatography , referring to the mobile and stationary phases, respectively. Secondly, the column through which the gas phase passes is located in an oven where the temperature of the gas can be controlled, whereas column chromatography typically has no such temperature control. Thirdly, the concentration of a compound in the gas phase is solely a Function mathematics function of the vapor pressure of the gas. ref name Pavia Gas chromatography is also similar to fractional distillation , since both processes separate the components ... GC can be used on a much smaller scale i.e. microscale . ref name Pavia Gas chromatography is also sometimes known as vapor phase chromatography VPC , or gas liquid partition chromatography GLPC . These alternative ...   more details



  1. Wet analysis

    orphan date May 2010 unreferenced date May 2010 In combustion processes, a wet analysis is performed when water vapor is taken into account as one of the products of the reaction. This analysis can be undertaken both on volume tric and mass basis. The wet analysis differs from the dry analysis as the latter considers that water vapor is condensed and removed from the hot exhaust gas es. Category Water ...   more details



  1. Prometheus Gas

    Unreferenced date March 2009 Infobox Company company name Prometheus Gas S.A. company logo vector logo company type Private genre foundation 1991 in Athens founder location city Athens location country Greece location this parameter modifies Headquarters origins key people Mr. Dimitrios Ch. Copelouzos area served SE Europe industry Natural gas products revenue operating income net income num employees parent divisions subsid owner 50 Gazprom Export , 50 Copelouzos Group company slogan homepage http www.prometheusgas.gr dissolved footnotes Prometheus Gas S.A. is a Greece Greek Russia n joint company, established in 1991 in Athens . The Russian natural gas export company Gazprom Export , on behalf of Gazprom , holds the 50 of the shares. Mr. Dimitrios Ch. Copelouzos, Chairman & Managing Director of Copelouzos Group , holds the 50 of shares. Among the basic sectors of the business activity of the Copelouzos Group and of Prometheus Gas are the importation and marketing of Russian natural gas in the Greek Market, the participation in the development of the necessary infrastructure with active involvement in the construction of natural gas transmission pipelines, compressor stations and city natural gas distribution networks. Within the interests of the company also fall the promotion and the implementation of business plans, aiming at creating new major natural gas consumers such as the modern natural gas fired combined cycle power stations . Prometheus Gas has secured for at least 50 years, through Gazprom, large quantities of gas in excess of those contracted to be imported into Greece by the state utility DEPA . These quantities amount to 3 billion cubic meters bcm annually until 2016 and 7 bcm annually beyond this period. Category Oil and gas companies of Greece Category Gazprom subsidiaries energy company stub greece stub ...   more details



  1. List of monasteries dissolved by Henry VIII of England

    Refimprove date October 2008 These monastery monasteries were dissolved by King Henry VIII of England in the Dissolution of the Monasteries . The list is by no means exhaustive, since over 800 religious houses existed before the Reformation, and virtually every town, of any size, had at least one abbey, priory, convent or friary in it. Often many small houses of monks, nuns, canons or friars. incompletelist date February 2011 class wikitable sortable class unsortable Image Name Location Order Year dissolved class unsortable Ref s West Langdon Abbey Langdon Abbey, br Langdon Dover , Kent Premonstratensian 1535 File Abingdon Abbey, geograph.jpg 100px Abingdon Abbey Abingdon Abbey, br Abingdon Abingdon, Oxfordshire Abingdon , Oxfordshire Benedictine 1538 File Rippers corner.jpg 100px Holy Trinity Priory, Aldgate Holy Trinity Priory, br Aldgate City of London Augustinian 1532 ref cite book url http british history.ac.uk report.aspx?compid 35357 chapter Austin canons Priory of Holy Trinity or Christchurch, Aldgate title A History of the County of London Volume 1 London within the Bars, Westminster and Southwark year 1909 pages 465 475 accessdate 1 May 2008 ref File Bardney Abbey Remains.jpg 100px Bardney Abbey Bardney , br Lincolnshire Benedictine 1538 ref http community.lincolnshire.gov.uk bardneyvillagehistory section.asp?catId 22783 Bardney Village History Bardney Abbey ref File Bardsey island.jpg 100px Bardsey Island Bardsey Abbey Aberdaron , br Gwynedd Canon Regular 1537 ref http www.britannia.com celtic wales history bardsey2.html Britannia.com , Ynys Enlli The Welsh Holy Island ref File Barking abbey ruins london.jpg 100px Barking Abbey Barking , br Greater London Benedictine 1539 ref cite book url http www.british history.ac.uk report.aspx?compid 39832 chapter Houses of Benedictine nuns Abbey of Barking title A History of the County of Essex Volume 2 year 1907 pages ... Reflist 1 DEFAULTSORT Monasteries Dissolved by Henry 08 of England, List of Category Dissolution ...   more details



  1. Wet gas

    is where a sample of the wet gas is removed from the pipe line for analysis to determine the constituent ... flow meter. Complex analysis and modelling of these signals can determine the liquid and gas ...A wet gas is any gas with a small amount of liquid present. ref cite book publisher T V NEL title An Introduction to wet gas flow metering. url http www.tuvnel.com tuvnel an introduction to wet gas flow metering ref The term wet gas has been used to describe a range of conditions ranging from a humid gas which is gas saturated with liquid vapour to a multiphase flow with a 90 volume of gas. There has ... first2 D. last3 Steven first3 R. title A discussion on wet gas flow parameter definitions journal Proceedings ... defined quantitative definition of a wet gas flow that is universally accepted. Wet gas is a particularly ... material present a significant problem. A typical example of wet gas flows are in the production of natural gas in the oil and gas industry. Natural gas is a mixture of hydrocarbon compounds ... phase of the wet gas extracted depends on the reservoir temperature and pressure conditions, which change over time as the gas and liquid are removed. Changes in the liquid and gas content also occur when a wet gas is transported from a reservoir at high temperature and pressure to where it is brought ashore or where it passes a valve. The presence and changeability of this wet gas can cause problems and errors in the ability to accurately meter the gas phase flowrate. It is important to be able to measure these wet gas flows accurately to quantify production from individual wells and to maximise the use of equipment and resources which will assist with the reduction of costs. Wet gas measurement terms There are a number of specific terms used to describe the characteristics of wet gas flow ref cite book publisher T V NEL title Wet gas terminology. url http www.tuvnel.com tuvnel tis10 wet gas terminology ref ref cite journal last1 Kegel first1 Tom title Wet Gas Measurement journal 4th ...   more details



  1. Bottled gas

    gas, Case IV chlorine nitrous oxide propane sulfur dioxide Case III The substance is dissolved ...Bottled gas is a term used for substances which are gaseous at standard temperature and pressure STP ... composite bottles known as gas cylinder s. Gas state in cylinders There are four cases either the substance remains a gas at standard temperature but increased pressure, the substance liquefies at standard temperature but increased pressure, the substance is dissolved in a solvent , or the substance ... can be maintained by evaporative cooling . Case I The substance remains a gas at standard temperature ... thumb Butane gas cylinder The substance liquefaction of gases liquefies at standard temperature ... liquid oxygen LO sub X sub carbon dioxide also packaged as a liquefied gas, Case II Note cryogenic ... unit volume of liquid will expand to approximately 800 unit volumes of gas at Standard temperature ... gas . Normal high pressure gas cylinders or bottles will hold from 200 to 400 atmosphere unit ... temperature and pressure of the gas held by the bottle for an ideal gas. Special handling considerations ... hazards. In the United States , the Compressed Gas Association CGA sells a number of booklets ... for free. The European Industrial Gases Association and the British Compressed Gas Association provide ..., bottled gas typically refers to liquefied petroleum gas . Bottled gas is sometimes used in medical ... cylinder gas , though bottled gas is sometimes used. The United Kingdom and other parts of Europe more commonly refer to bottled gas when discussing any usage whether industrial, medical or liquefied petroleum. However, in contrast, what the United States calls liquefied petroleum gas is known generically ... have different gas colour codes but attempts are being made to standardise the colours of cylinder ... for Standardization ISO standard, ISO 32 but not all countries use this standard. Within Europe gas ... EU Compressed Gas Cylinder colour codes ref ref http www.ior.org.uk ior images pdf se New 20Colour 20ID ...   more details



  1. Gas laws

    that At a constant temperature, the amount of a given gas dissolved in a given type and volume ... description of the ideal gas laws and their further development, see Ideal gas , Ideal gas law and Gas . The early gas laws were developed at the end of the 18th century, when scientists began to realize that relationships between the pressure, volume and temperature of a sample of gas could ... the equation of state for an ideal gas is derived from kinetic theory . The earlier gas laws are now considered as special cases of the ideal gas equation, with one or more of the variables held constant ... gas ideal gas s pressure and volume is always constant. It was published in 1662. It can be determined ... , V the volume m sup 3 sup of a gas, and k sub 1 sub measured in joule s is the constant from this equation ... law which states the volume of a given mass of gas is inversely proportional to its pressure, if the temperature ..., was found in 1678. It says that, for an ideal gas at constant pressure, the volume is directly proportional ... V 2 T 2 , math The absolute temperature of the gas in kelvin and k sub 2 sub in m sup 3 sup K sup ... s sides by an ideal gas is proportional to the absolute temperature. math frac P 1 T 1 frac P ... gas is proportional to the number of mole unit moles or molecules present in the container. This gives rise to the molar volume of a gas, which at Standard conditions for temperature and pressure ... where n is equal to the number of moles of gas the number of molecules divided by Avogadro s Number . Combined and ideal gas laws main Ideal gas law The combined gas law or general gas equation is formed ..., and temperature for a fixed mass of gas math PV k 5T , math With the addition of Avogadro s law , the combined gas law develops into the ideal gas law math PV nRT , math where P is pressure V is volume n is the number of moles R is the universal gas constant T is temperature K where the constant, now named R, is the gas constant with a value of .08206 atm L mol K . An equivalent formulation of this law ...   more details




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