wikify date March 2012 Critical thermalmaximum , in zoology , is that temperature for a given species above which most individuals respond with unorganized locomotion, subjecting the animal to likely death. ref R.W. McDiarmid, 1999 ref This concept is particularly relevant in periods of aestivation or quiescence , in which circumstances an organism experiences limited mobility and lacks the ability to seek a microhabitat of reduced thermal stress. See also Dormancy Aestivation Physiology Torpor Line notes reflist References Roy W. McDiarmid and Ronald Altig 1999 Tadpoles The Biology of Anuran Larvae , p 202, University of Chicago Press ISBN 0226557626 Category Animal physiology animal physiology stub ... more details
orphan date December 2009 Cretaceous ThermalMaximum , also known as Cretaceous Thermal Optimum , was a period during Earth s history notable for its dramatic increase in global temperatures. Characteristics Carbon dioxide levels reached astounding heights and the sea levels elevated. Plants such as plankton became glassy and temperatures increased. Scientists predicted that the Cretaceous ThermalMaximum occurred during the Cenomanian Turonian transition based from the fact that there was a major downfall in global climate. It was also shown to be the most extreme carbon cycle recorded in the past 100 million years. ref name Foster Foster, A., et al. The Cretaceous ThermalMaximum and Oceanic Anoxic Event 2 in the Tropics Sea Surface Temperature and Stable Organic Carbon Isotopic Records from the Equatorial Atlantic. American Geophysical Union, Fall Meeting 2006. The Smithsonian NASA Astrophysics Data System. Web. 20 Oct. 2009. http adsabs.harvard.edu abs 2006AGUFMPP33C..04F ref ref name Poulsen Poulsen, Christopher J., Andrew S. Gendaszek, and Robert L. Jacob. Did the rifting of the Atlantic Ocean cause the Cretaceous thermalmaximum? Geology 31.2 2003 115 118. Web. 20 Oct. 2009. http geology.geoscienceworld.org cgi content abstract 31 2 115 . ref Impact Although there was clearly an impact, the results of the Cretaceous ThermalMaximum are a little unclear. However, we do know that the average temperature was between 27 degrees Celsius and 29 degrees Celsius. Even worse, locations bordering the Atlantic Ocean rose to about 35 degrees Celsius to 36 degrees Celsius. In fact, it was extremely rare for the temperature to drop 4 degrees Celsius even in winter. The constant peak of high temperature was mostly because there were high carbon dioxide formulations. All of this implies that the mid Cretaceous super greenhouse climate was more unstable than we had thought before. ref name Foster ref name Poulsen ref name Wilson Wilson, Paul A., Richard D. Norris, and Matthew ... more details
Eocene ThermalMaximum 2 ETM 2 , also called H 1 or the Elmo event, was a transient period of climate change global warming that occurred approximately 53.7 million years ago Ma . ref name Lourens2005 Cite journal author Lourens, L.J. coauthors Sluijs, A. Kroon, D. Zachos, J.C. Thomas, E. R hl, U. Bowles, J. Raffi, I. year 2005 title Astronomical pacing of late Palaeocene to early Eocene global warming events journal Nature pmid 15944716 volume 435 issue 7045 pages 1083 1087 doi 10.1038 nature03814 bibcode 2005Natur.435.1083L ref ref name Nicolo2007 Cite journal author Nicolo, M.J. coauthors Sluijs, A. Kroon, D. Zachos, J.C. Thomas, E. R hl, U. Bowles, J. Raffi, I. year 2007 title Multiple early Eocene hyperthermals Their sedimentary expression on the New Zealand continental margin and in the deep sea journal Geology volume 35 pages 699 702 url http geology.geoscienceworld.org cgi content abstract 35 8 699 doi 10.1130 G23648A.1 issue 8 ref ref name Sluijs2009 Cite journal author Sluijs, A. coauthors Schouten, S. Donders, T.H. Schoon. P.L. R hl, U. Reichart, G. J. Sangiorgi, F. Kim, J. H. Sinninghe Damst , J.S. Brinkhuis, H. year 2009 title Warm and wet conditions in the Arctic region during Eocene ThermalMaximum 2 journal Nature Geoscience volume 2 pages 777 780 url http www.nature.com ngeo journal v2 n11 full ngeo668.html doi 10.1038 ngeo668 issue 11 bibcode 2009NatGe...2..777S ref ref name Stap2010 Cite journal author Stap, L. coauthors Lourens, L.J. Thomas, E. Sluijs, A. Bohaty ... ThermalMaximum 2 and H2 journal Geology volume 38 pages 607 610 url http geology.geoscienceworld.org ... carbon input. The most extreme and best studied event, the Paleocene Eocene ThermalMaximum PETM ... name Nicolo2007 ref name Stap2010 . See also Paleocene Eocene ThermalMaximum References Reflist External ... sea carbonate dissolution during Eocene ThermalMaximum 2 and H2, Walvis Ridge, southeastern ... 2010 Category Climate history Category Eocene de Eocene ThermalMaximum 2 ... more details
foraminifera. The Paleocene Eocene ThermalMaximum PETM is characterized by a brief but prominent ... geology epochs around 55.0 million years ago. This event, the Paleocene Eocene ThermalMaximum PETM , alternatively nowrap Eocene thermalmaximum 1 ETM1 , and formerly known as the Initial Eocene or nowrap Late Paleocene ThermalMaximum , ref name Katz1999 cite doi 10.1126 science.286.5444.1531 ... ThermalMaximum 2 ETM 2 also referred to as H 1, or the Elmo event . However, additional hyperthermals ... 2008 title Sedimentary response to Paleocene Eocene ThermalMaximum carbon release A model data comparison ... New chronology for the late Paleocene thermalmaximum and its environmental implications journal ... for the Paleocene&mdash Eocene thermalmaximum using extraterrestrial sup 3 sup He journal Earth ... Arctic hydrology during global warming at the Palaeocene Eocene thermalmaximum journal Nature volume ... Eocene ThermalMaximum journal Science volume 308 issue 5728 pages 1611 1615 doi 10.1126 science.1109004 ... title Rapid Acidification of the Ocean During the Paleocene Eocene ThermalMaximum journal Science volume ... oligotrophy during the Paleocene Eocene thermalmaximum Nannofossil assemblage data from Ocean Drilling ..., R.A. Swisher III, C.C. year 2007 title Paleocene Eocene ThermalMaximum and the Opening of the Northeast ... excursion and the thermalmaximum. Indeed, a key feature and testable prediction of a comet impact ... for a comet impact trigger for the Paleocene Eocene thermalmaximum and carbon isotope excursion journal ... Magnetofossil Spike During The Paleocene eocene ThermalMaximum Ferromagnetic Resonance, Rock Magnetic ... horizon aka Eocene ThermalMaximum 2 ETM2 , has led to the hypothesis that the events ... title Uncorking the bottle What triggered the Paleocene Eocene thermalmaximum methane release journal ... dissociation of methane hydrate during the Paleocene Eocene thermalmaximum journal Geology ... Eocene ThermalMaximum journal Science volume 308 issue 5730 pages 1894 1898 doi 10.1126 ... more details
about the atmospheric phenomenon other uses of the term thermalthermal disambiguation One source date July 2009 Image Thermal column.svg thumb Example of a thermal column between the ground and a cumulus A thermal column or thermal is a column of rising air in the lower altitudes of the Earth s atmosphere . Thermals are created by the uneven heating of the Earth s surface from solar radiation , and are an example of convection , specifically atmospheric convection . The Sun warms the ground, which in turn warms the air directly above it. ref cite book last Bradbury first Tom title Meteorology and Flight Pilot s Guide to Weather Flying & Gliding publisher A & C Black year 2000 id ISBN 0 7136 4226 2 ref Dark earth, urban areas and roadways are good sources of thermals. The warmer air expands, becoming less density dense than the surrounding air mass. The mass of lighter air rises, and as it does, it cools due to its expansion at lower high altitude pressures. It stops rising when it has cooled to the same temperature as the surrounding air. Associated with a thermal is a downward flow surrounding the thermal column. The downward moving exterior is caused by colder air being displaced at the top of the thermal. The size and power physics strength of thermals are influenced by the properties of the lower atmosphere the troposphere . Generally, when the air is cold, bubbles of warm air are formed by the ground heating the air above it and can rise like a hot air balloon. The air is then said to be unstable. If there is a warm layer of air higher up, an temperature inversion inversion ... by the presence of visible cumulus cloud cumulus clouds at the apex of the thermal. When a steady ... pilots. Cumulus clouds are formed by the rising air in a thermal as it ascends and cools, until ... docs thermals 2006.pdf What do thermals look like? Thermal Structure and Behavior by Wayne M. Angevine http bookergc.blogspot.com 2008 04 thermal formation and decay.html Time lapse video ... more details
Unreferenced date January 2007 orphan date November 2009 Infobox Album See Wikipedia WikiProject Albums Name Maximum Maximum Maximum Type Album Artist Thee Michelle Gun Elephant Cover Released 1993 Genre Garage rock Length Label Self released Last album This album Maximum Maximum Maximum br 1993 Next album Cult Grass Stars br 1996 Maximum Maximum Maximum is the debut album by Thee Michelle Gun Elephant , released in 1993 in music 1993 . Track listing GOOD BYE GIRL 2 5 25 4 24 HEY, 4 11 2 53 3 28 3 48 You Can t Judge A Book By Its Cover 3 06 5 10 3 48 VIVA LA MICHELLE 3 12 Category Thee Michelle Gun Elephant albums Category 1993 albums ... more details
For Thermal conductance see Thermal contact conductance Thermal conduction Thermal conductivity List of thermal conductivities disambig ... more details
The maximum density of a Chemical substance substance is the highest attainable density of the substance under given conditions. Attaining maximum density Almost all known substances undergo thermal expansion in response to heating, meaning that a given mass of substance contracts to a low volume at low temperature s, when little thermal energy is present. Substances, especially fluid s in which intermolecular force s are weak, also undergo compression physical compression upon the application of pressure . Nearly all substances therefore reach a density maximum at very low temperatures and very high pressures, characteristic properties of the solid State of matter state of matter . Water see Water molecule Density of water and ice An especially notable irregular maximum density is that of water , which reaches a density peak at convert 3.98 C F . This has important ramifications in Earth s ecosystem . Fact date March 2007 Citation help is here http www.google.com search?&q Wetzel 3.98 Density of water References Unreferenced date December 2006 references Reflist See also List of elements by density Density Specific Gravity Specific weight Charge density Buoyancy Hydrometer Category Density Category Condensed matter physics Category Physical chemistry Category Physical quantities physical chemistry stub ... more details
, roofs, and floors for the maximum amount of thermal resistance results in optimal body comfort ...File Thermal bridge by Zureks.png thumb Temperature distribution in a thermal bridge A thermal bridge , also called a cold bridge , ref name Viking http www.viking house.co.uk cold bridge thermal bridge.html viking house.co.uk Cold Bridge Thermal Bridge ref is a fundamental of heat transfer where a penetration ... also known as the building enclosure, building envelope , or thermal envelope . ref name Allen ... John Wiley & Sons Inc. Fundamentals of Building Construction ref Thermal bridging is created when materials that are poor thermal insulation thermal insulators come into contact, allowing heat to flow through the path of least thermal resistance R value insulation R value or a materials effectiveness ... ref Insulation around a bridge is of little help in preventing heat loss or gain due to thermal ... that have better insulating properties, or with a section of material with low thermal conductivity ..., called a thermal break . Concept Several properties of materials affect heat transfer. Examples include thermal conductivities, specific heats, material densities, fluid velocities, fluid viscosities, and surface reflectance and emittance characteristics. Thermal bridges are characterized by multi ... models of calculation typically used in norms and standards for the thermal performance of buildings ... buildings Heavy advertising site ref are a common example of thermal bridging. In commercial construction, steel or concrete members incorporated in exterior wall or roof construction often form thermal bridges. ref name Allen Metal ties in cavity walls are another type of thermal bridge commonly found in masonry construction. ref name Allen Thermal Bridging in Construction File Waermebruecke konstruktiv.jpg thumb right 200px Thermal bridge caused by floor Classification Repeating thermal bridges ... wall Non repeating thermal bridges such as the bridging of a cavity wall by a single lintel Geometrical ... more details
of the bond for example, a thermal bonding pad or thermal transfer grease might be used to reduce the absolute thermal resistance. Maximum temperature drop from junction to ambient math T JMAX ...Thermal resistance is a heat property and a measure of a temperature difference by which an object or material resists a heat flow heat per time unit or thermal resistance . Thermal resistance is the reciprocal thermal conductance . Thermal resistance R has the units m sup 2 sup K W. Specific thermal resistance or specific thermal resistivity R sub sub in K m W is a material constant . Absolute thermal ... of a heat sink . Absolute thermal resistance Absolute thermal resistance is the temperature difference ... of thermal conductance . The SI units of thermal resistance are kelvin s per watt or the equivalent degrees Celsius per watt the two are the same since as intervals 1 K 1 C . The thermal ... an electronics point of view Equivalent thermal circuits Image Equivalient thermal circuit.PNG thumb The diagram shows an equivalent thermal circuit for a semiconductor device with a heat sink br math ... is the device s absolute thermal resistance from junction to case. br math R theta CH math is the absolute thermal resistance from the case to the heatsink. br math R theta HA math is the absolute thermal ... by constant current sources, absolute thermal resistances are represented by resistors and thermal capacitances by capacitors. The diagram shows an equivalent thermal circuit for a semiconductor ... parameters in the datasheet called the absolute thermal resistance from junction to case symbol math R theta JC math , and the maximum allowable temperature of the semiconductor junction symbol math T JMAX math . The specification for the design should include a maximum temperature at which the circuit ... before it overheats. The calculations are as follows. Total absolute thermal resistance from junction to ambient math R theta JC R theta B math where math R theta B math is the absolute thermal ... more details
A thermal bar is a hydrodynamic feature that forms around the edges of holomictic lakes during the seasonal transition to Stratification water stratified conditions, due to the shorter amount of time required for shallow areas of the lake to stratify. Description During the process of lake stratification ... may persist for weeks, during which a temperature Weather front front known as a thermal bar forms between the stratified and unstratified areas of the lake. The thermal bar generally forms parallel to shore and moves toward the lake center as deeper areas of the lake stratify. While thermal bars can form in both fall and spring season spring , most studies of the thermal bar have investigated aspects ... to form. At the lake surface, the thermal bar may be visible as a foam line between the stratified water shoreward of the thermal bar and unstratified water on the offshore side. At this convergence, waters mix and sink when they reach the temperature of maximum density , roughly 4 degrees Celsius for freshwater, a process known as cabbeling. The downwelling of dense water at the thermal bar acts ... thermal bars using their thermal characteristics as well as the concentration of suspended materials ... of the thermal bar slope away from the bar, producing a pressure gradient force that when balanced ... matter along the shore. The thermal bar phenomena was first described by Fran ois Alphonse ..., K. D. Kreiman, and A. Yu. Terzhevik, The Thermal Bar, Journal of Fluid Mechanics 236 ... a Thermal Bar in Lake Baikal, Journal of Great Lakes Research 22, no. 1 1996 5 14 ref and the Laurentian Great Lakes . ref G. K. Rodgers, The thermal bar in Lake Ontario, spring 1965 and winter 1965 ...., Publ. 15. ref Ecological significance Although a temporary seasonal feature, the thermal bar plays ... Vernal Thermal Front, Estuaries 16, no. 1 1993 92 103. ref . See also Water molecule Density of water ... Kay, A review of the physics and ecological implications of the thermal bar circulation, Limnologica ... more details
Maximum power can refer to different concepts In electronics, the maximum power theorem In systems theory, the maximum power principle disambig ... more details
Orphan date February 2009 Unreferenced date January 2007 A thermal optimum is either a portion of a specified geological time span in which the average temperature was above that of the average temperature for the entire specified time or the optimum range within which a biological process may take place or the ambient optimal range for a species Ecological niche niche . In geology, scientists speak of a Holocene climatic optimum Holocene thermal optimum or maximum , for example, when referring to the warm period from 9000 to 5000 years before the present, in which an overall rise in average temperature is seen in evidence from ice cores and from stable isotope data. Scientists are interested in these periods because they may be clues to evolution ary pressures experienced by species during large spans of time. In biology a thermal optimum describes the ideal boundaries for biological processes such as growth and development, and is usually characteristic of a species or population. Most biological processes are dependent upon enzymatic activity that can be impacted by the organism s body temperature, which in term is a function of the organism s metabolism and environment as each enzyme ... may then be dependent upon the thermal optima for all of its necessary biological processes. Fact date February 2007 In animals that inhabit the wave tossed tidal pools of rocky shore s thermal optima ..., and lack of thermal insulation from the buffering effects of water due to its specific heat capacity ... a high thermal optimum may still be able to function in this environment, while one with a lower thermal optimum may have its metabolic processes shut down during the drying period of exposure. An organism may be confined to a limited range of habitats due to the population s thermal optima, while another population may have a different range of habitats open to it due to a different thermal optima ... environmental thermal optima for different species. Fact date February 2007 References references ... more details
Maximum entropy may refer to The principle of maximum entropy The maximum entropy probability distribution Maximum entropy spectral estimation Maximum entropy spectral analysis Maximum entropy thermodynamics The law of maximum entropy production Entropy maximization Maximum entropy classifier See also Second law of thermodynamics also known as the law of increasing entropy disambig ... more details
wiktionary maximum The maximum is the extreme value in a set. Maximum may also refer to Maximum MAX album Maximum MAX album Maximum Murat Boz album Maximum Murat Boz album Maximum song Maximum song , a song by Murat Boz Maximum comics , a fictional superhero published by DC Comics Maximum break in snooker is often known as maximum The general maximum , an economic policy in the French Revolution Maximum film , a 2012 Bollywood movie SpeciesAbbreviation maximum See also Maxima disambiguation Maximus disambiguation Minimum disambig fr Maximum homonymie tr Maximum ... more details
T P th R s math Rhs delta T P th Rs where R sub hs sub is the maximumthermal resistance of the heat ... resistance of 0.5 C W, what is the maximumthermal resistance of the heat sink? Suppose the maximum ...In physics , thermal conductivity , math k math or denoted math lambda math , is the List of materials ... of high thermal conductivity occurs at a higher rate than across materials of low thermal conductivity. Correspondingly materials of high thermal conductivity are widely used in heat sink applications and materials of low thermal conductivity are used as thermal insulation . Thermal conductivity of materials is temperature dependent. The reciprocal of thermal conductivity is thermal resistivity. Units of thermal conductivity In the International System of Units SI , thermal conductivity is measured ... thermal conductivity is measured in Btu hr ft F where 1 Btu hr ft F 1.730735 W m K . ref Perry s Chemical Engineers Handbook, 7th Edition, Table 1 4 ref Other units which are closely related to the thermal ... industry makes use of units such as the R Value resistance value and the U Value thermal transmittance . Although related to the thermal conductivity of a product R and U values are dependent on the thickness ... and the Thermal Comfort Clo which express thermal resistance of a material in a way analogous to the R ... based on the SI units of measurement . Measurement main Thermal conductivity measurement There are a number of ways to measure thermal conductivity. Each of these is suitable for a limited range of materials, depending on the thermal properties and the medium temperature. There is a distinction .... Experimental values File Thermal conductivity.svg thumb 550px Experimental values of thermal conductivity. main List of thermal conductivities Thermal conductivity is important in material science ... standards. Several materials are shown in the list of thermal conductivities . These should be considered ... for computer cooling or turbine blades usually use high thermal conductive materials such as silver ... more details
Refimprove date February 2010 cleanup date July 2011 Image Thermal lance.2004 8 4.jpg thumb 350px Thermal lance cutting a railroad bridge to prepare for replacement. A thermal lance , thermic lance , oxygen lance , or burning bar is a tool that burns iron in the presence of pressurized oxygen to create very high temperatures for cutting. It consists of a long iron tube packed with iron rods, sometimes mixed with aluminium or magnesium rods to increase the heat output. One end of the tube is placed in a holder and oxygen is fed through the tube. The far end of the tube is pre heated and lit by an Oxy fuel welding and cutting oxyacetylene torch. An intense stream of burning iron is produced at the lit end and can be used to cut rapidly through thick materials including steel and concrete . The tube is consumed, so every few minutes the operator shuts off the oxygen, discards the remaining stub of a lance tube and starts using a new one. The temperature at which a thermal lance burns varies depending on the environment. ref Cite book last LaGuardia first Thomas S. title The Decommissioning Handbook chapter Chapter 16.3 Characterization Description of Select Technologies pages 4 46 Not a range ...&pg PT314 isbn 978 0 89448 041 6 ref Kosanke gives the maximum temperature to be convert 4770 K ... journal doi 10.1021 ie030729r title Model Analysis of Thermal Lance Combustion year 2004 last1 Wang ... of thermal lances sometimes exaggerate their capabilities. In the movie The Score film The Score Nick Wells played by Robert De Niro uses a thermal lance to cut a hole in the top of a safe, to avoid ... of the thermal lance and discovered opening a modern safe with a thermal lance takes .... The MythBusters concluded that using a thermal lance for safe cracking is plausible, but impractical. There are examples in science fiction of thermic lance or thermal lance being used to mean ... by Berczes et al. DEFAULTSORT Thermal Lance Category Cutting tools Category Welding de Sauerstofflanze ... more details
Maximum Security may refer to Supermax , control unit prisons, or units within prisons Maximum Security comics , a comic book miniseries published by Marvel Comics Maximum Security Tony MacAlpine album Maximum Security Tony MacAlpine album , 1987 Maximum Security Alien Sex Fiend album Maximum Security Alien Sex Fiend album , 1985 Maximum Security TV series Maximum Security TV series , an American drama television series on HBO Maximum Security novel , the third book of the CHERUB series Prison Tycoon 2 Maximum Security , a 2006 computer game See also Supermax disambiguation Maximum security prison disambiguation disambiguation ... more details
The thermal equator also known as the heat equator is a belt encircling the Earth , defined by the set of locations having the highest mean annual temperature at each longitude around the globe. Because local temperatures are sensitive to the geography of a region, and mountain ranges and ocean currents ensure that smooth temperature gradients such as might be found if the Earth were uniform in composition and devoid of surface irregularities are impossible, the location of the thermal equator is not identical to that of the geographic Equator . The term is less frequently used to describe the belt of maximum temperatures encircling the globe which migrates roughly between the Tropic of Cancer and the Tropic of Capricorn , the region known as the Intertropical Convergence Zone , as the Earth orbit s the Sun. Still another definition states that the thermal equator is the latitude at which insolation is identical throughout the year this is not the same as the astronomical equator because the Earth reaches perihelion the minimum distance from the Sun in its orbit in early January and is at aphelion maximum distance in early July therefore, insolation is somewhat higher at 0 latitude in January than in July even though the height of the Sun at noon and the length of day from sunrise to sunset is essentially the same. At a few degrees north of the equator the perihelion aphelion factor is balanced by the fact that the angle of the Sun is slightly more direct, and the days are slightly longer, at the time of the summer solstice for the Northern Hemisphere most commonly on June 21 , making the level of insolation virtually the same in both summer and winter. External links http www.ssec.wisc.edu data comp latest cmoll.gif Current temperature map Category Climate Category Physical geography ar de W rme quator es Ecuador t rmico nl Thermische evenaar ja nn Termal ekvator pl R wnik termiczny ... more details
Cleanup date December 2008 Thermal desorption is an environmental remediation technology that utilizes heat to increase the Volatility chemistry volatility of contaminants such that they can be removed separated from the solid matrix typically soil, sludge or filter cake . Thermal desorption is not incineration. The volatilized contaminants are then either collected or thermally destroyed. A thermal desorption system therefore has two major components the desorber itself and the offgas treatment system. History Thermal desorption first appeared as an environmental treatment technology in 1985 when it was specified in the Record of Decision ROD for the McKin site in Maine. The latest status report from the United States Environmental Protection Agency USEPA shows that thermal desorption has ... completed using thermal desorption at non Superfund sites. For in situ on site treatment options ... are still on site. Thermal desorption is a widely accepted technology that provides a permanent solution at an economically competitive cost. The world s first large scale thermal desorption .... With a carbon steel shell, the maximum solids temperature is around 1,000 F, while temperatures ... ranging from twenty to fifty feet. The maximum practical solids temperature for these systems is around ... the development of a microwave thermal desorber at the commercial scale. Offgas treatment There are only ... be treated by carbon adsorption, or thermal oxidation. Thermal oxidation can be accomplished using a catalytic ... process vent emissions. Some thermal desorption systems recycle the carrier gas, thereby further .... A thermal desorber removing 500 mg kg of organic contaminants from 20,000 tons of soil will produce ... . The destruction unit may be called an afterburner, secondary combustion chamber, or thermal oxidizer ... oust cat LTTD.HTM EPA Office of Underground Storage Tanks Low Temperature Thermal Desorption www.epa.gov oust cat LTTD.HTM http www.midwestsoil.com thermal desorption THERMAL DESORPTION What ... more details
Italic title Taxobox image Bulbophyllum maximum as Megaclinium maximum Curtis 69 N.S. 16 pl. 4028 1843 .jpg regnum Plantae unranked divisio Angiosperms unranked classis Monocots ordo Asparagales familia Orchidaceae subfamilia Epidendroideae genus Bulbophyllum species B. maximum binomial Bulbophyllum maximum binomial authority synonyms Bulbophyllum maximum is a species of orchid in the genus Bulbophyllum . References http bulbophyllum checklist.bulbophyllum.at The Bulbophyllum Checklist http www.orchidspecies.com indexbulb.htm The Internet Orchid Species Photo Encyclopedia DEFAULTSORT Bulbophyllum Maximum Category Bulbophyllum maximum Bulbophyllum stub az Bulbophyllum maximum vi Bulbophyllum maximum ... more details
L. maximum may refer to Leucanthemum maximum , the max chrysanthemum, a flowering plant species native to France and Spain Lithophragma maximum , the San Clemente Island woodland star, a rare flowering plant species endemic to San Clemente Island, California See also Maximum disambiguation Species Latin name abbreviation disambiguation ... more details
of this method stem from the maximum temperature achieved in thermal ionization. The hot filament ...Technical date September 2010 Thermal ionization , also known as surface ionization , refers to the process whereby a chemically purified material is placed onto a Electrical filament filament which is then heated to high temperatures to cause some of the material to be ion ized as it is thermally desorbed boiled off the hot filament. Filaments are generally flat pieces of metal around 1 2mm wide, 0.1mm thick, bent into an upside down U shape and attached to two contacts that supply a current. Saha Langmuir equation The likelihood of ionization is a function of the filament temperature, the work function of the filament substrate and the ionization energy of the chemical element element . This is summarised in the Megh Nad Saha Saha Irving Langmuir Langmuir equation ref name 1.1655755 Cite journal title The Saha Langmuir Equation and its Application journal Journal of Applied Physics date January 1968 first M. J. last Dresser coauthors volume 39 issue 1 pages 338 339 doi 10.1063 1.1655755 url http scitation.aip.org getpdf servlet GetPDFServlet?filetype pdf&id JAPIAU000039000001000338000001&idtype cvips&prog normal format PDF accessdate 2007 10 11 bibcode 1968JAP....39..338D ref math frac n n 0 frac g g 0 exp Bigg frac e phi IP kT Bigg math math frac n n 0 math ratio of ion number density to neutral number density math frac g g 0 math ratio of statistical weights degeneracy of ionic g and neutral g 0 states math e math electron charge math phi math surface work function IP element ionization potential k Boltzmann s constant T surface temperature Thermal ionization mass spectrometry One application of thermal ionization is thermal ionization mass spectrometry TIMS . This method is widely used in radiometric dating , where the sample is ionized under vacuum. The ions being ... DEFAULTSORT Thermal Ionization mass spectrometry Category Ion source et Termoionisatsioon it Ionizzazione ... more details
br math w x propto exp left S x right . math br If the entropy is expanded about its maximum corresponding to the Thermal equilibrium equilibrium state , the lowest order term is a Gaussian distribution ... more details
Thermal analysis is a branch of materials science where the properties of materials are studied as they change ... by the property which is measured Dielectric thermal analysis DEA dielectric permittivity & loss factor Differential thermal analysis DTA temperature difference Differential scanning calorimetry DSC ... flash analysis LFA thermal diffusivity and thermal conductivity Thermogravimetric analysis TGA mass ... Thermal Analysis STA generally refers to the simultaneous application of Thermogravimetry TGA and Differential ... of the sample, heating rate, thermal contact to the sample crucible and sensor, radiation effect ... wave heating rate Modulated Temperature Thermal Analysis or modify the heating rate in response to changes in the system s properties Sample Controlled Thermal Analysis . In addition to controlling ... that these experiments can be considered to come under the auspices of Thermal Analysis. Atomic force ... a form of spatially resolved thermal analysis can be carried out. Thermal Analysis is also ... and thermal conductivity . Thermal Analysis of Pharma Materials DSC,TG DTA and TG DTA IR are often used ... area of application for thermal analysis. Thermal Analysis of Polymers Polymers represent another large area in which thermal analysis finds strong applications. Thermoplastic polymers are commonly ..., polymer resin and other additives. TGA can also give an indication of thermal stability and the effects of additives such as flame retardants Thermal analysis of composite materials, such as carbon .... Thermal Analysis of Metals Production of many metals cast iron , grey iron , ductile iron ... , silver , and complex steel s are aided by a production technique also referred to as thermal analysis ... thermal analysis whereby the cooling rate of the sample is dependent on the cup material usually ... chemical dissolution. Thermal Analysis of Foods Most foods are subjected to variations in their temperature ... varies. These techniques are often grouped under the general heading of thermal analysis. In principle ... more details
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