Orphan date February 2009 UltraHighFrequency was a Long Island Long Island, New York based rock band formed in 2001 on Long Island by Frank Fussa vocals, guitar , Jon Brown guitar vocals , Chris Johanidesz bass vocals and Dennis Joseph drums vocals . Dennis left in 2002. It wasn t until 2004 that their first official record Sun Never Sets in Dramaville was released. The band s next full length Matter in Time 2006 was recorded in Seattle, Washington by producer engineer Barrett Jones. Upon release the band toured with fellow Long Island band Brand New. As of 2007 the band relocated to Los Angeles to continue writing and touring. By the end of 2007, the band called it quits. Frank and Chris have emerged with a new band called Morning Fuzz. Discography Albums 2006 Matter in Time 2004 Sun Never Sets in Dramaville Singles EP 2003 Joyride Lies 2002 This is Important EP Compilation tracks Beer The Movie 2006 Back to Bacon from Matter in Time Demos Basement Demo 2001 External links http www.billboard.com bbcom bio index.jsp?pid 165755 Billboard.com http www.ultrahighmusic.com Official Website http www.myspace.com ultrahighfrequency UltraHighFrequency MySpace http www.ultrahighmusic.com images UHFAPPress.jpg Alternative Press Magazine http www.ultrahighmusic.com images UHF auralfix.pdf Aural Fix Magazine Category American rock music groups Category Musical groups from Long Island Category Musical groups established in 2001 US rock band stub ... more details
MWband freq 0.3 to 3 kilohertz kHz bands Ultra low frequency ULF is the frequency range of electromagnetic waves between 300 hertz and 3 kilohertz. In magnetosphere science and seismology , alternative definitions are usually given, including ranges from 1 mHz to 100 Hz, ref V.A. Pilipenko, ULF waves on the ground and in space , Journal of Atmospheric and Terrestrial Physics, Volume 52, Issue 12, December 1990, Pages 1193 1209, ISSN 0021 9169, doi 10.1016 0021 9169 90 90087 4 . ref 1 mHz to 1 Hz, ref T. B singer and S. L. Shalimov, On ULF Signatures of Lightning Discharges , Space Science Reviews, Volume 137, Issue 1, Pages 521 532, June 2008, doi 10.1007 s11214 008 9333 4 . ref 10 mHz to 10 Hz. ref O. Molchanov, A. Schekotov, E. Fedorov, G. Belyaev, and E. Gordeev, http www.nat hazards earth syst sci.net 3 203 2003 nhess 3 203 2003.pdf Preseismic ULF electromagnetic effect from observation at Kamchatka , Natural Hazards and Earth System Sciences, Volume 3, Pages 203 209, 2003 ref Frequencies above 3 Hz in atmosphere science are usually assigned to the extremely low frequency ELF range. Many types of waves in the ULF frequency band can be observed in the magnetosphere and on the ground. These waves represent important physical processes in the near Earth plasma environment. The speed of the ULF waves is often associated with the Alfven velocity that depends ... EMSpectrum DEFAULTSORT Ultra Low Frequency Category Radio spectrum es Ultra baja frecuencia fr Ultra basse fr quence hi ULF it Ultra low frequency nl ULF radiospectrum ja no Ultralav ... module 3 1.html HF and Lower Frequency Radiation Introduction Bot generated title ref Earthquakes ... month August title Low Frequency Magnetic Field Measurements Near the Epicenter of the M sub s sub ... Earth s field NMR Through the earth mine communications Voice frequency References references External articles Tomislav Stimac, http www.vlf.it frequency bands.html Definition of frequency bands VLF ... more details
MWband freq 3 to 30 megahertz MHz bands Highfrequency HF radio frequency radio frequencies are between ... MUF Lowest usable highfrequency LUF and a Frequency of optimum transmission FOT The maximum usable ... in full summer the higher frequencies tend to be more usable, often into the lower Very highfrequency ... two HF transceivers. The highfrequency band is very popular with amateur radio operators, who can take ... STD 188 141 for automated connectivity and frequency selection, along with the high costs of satellite ... HF. These tags are commonly known as HFID s or HighFID s HighFrequency Identification . See also HighFrequency Active Auroral Research Program HighFrequency Internet Protocol Low frequency Radio ... Transmission of HighFrequency Phonons by a Superlattice The Dielectric Phonon Filter . Phys ... Depression Induced by HighFrequency Deep Brain Stimulation . New England Journal of Medicine, Volume ... of highfrequency resonant tunneling The first order ac current response . Phys. Rev. B 43, 12538 12548 Issue 15 15 May 1991 . Sipila, M., et al., Highfrequency periodic time domain waveform measurement ..., Oct 1988. ISSN 0018 9480 INSPEC 3291255 DOI 10.1109 22.6087 Morched, A., et al., A highfrequency ... vlf.it . Douglas C. Smith, http www.emcesd.com HighFrequency Measurements Web Page Index and Technical ... Frequency Propagation Models , its.bldrdoc.gov. http www.cscamm.umd.edu programs hfw05 HighFrequency ... 345.pdf Grounding for Low and HighFrequency Circuits PDF http www.mrec.org pubs HighFrequencyNoise InformationalPage 05.pdf Highfrequency noise PDF http www.codan.com.au HFRadio WhyHF ... HF id Frekuensi tinggi it Highfrequency he Highfrequency nl Highfrequency ja ... Medium frequency Medium frequency MF , and the next higher frequencies are known as VHF Very highfrequency VHF . The Shortwave range 2.310 25.820 MHz used by international broadcasters is part of the HF frequency spectrum. In aviation virtually the entire spectrum 2 29.999 MHz is used ... more details
The lowest usable highfrequency LUF , in radio transmission telecommunications transmission , is that frequency in the Highfrequency HF band at which the received field intensity is sufficient to provide the required signal to noise ratio for a specified time period, e.g., 0100 to 0200 UTC, on 90 of the undisturbed days of the month. The amount of energy absorbed by the lower regions of the ionosphere D region, primarily directly impacts the LUF. See also Maximum usable frequencyFrequency of optimum transmission Source Federal Standard 1037C Category Radio frequency propagation telecomm stub de Lowest Usable Frequency ... more details
Globalize date April 2012 Financial market participants Highfrequency trading HFT is the use of sophisticated ... name whatis cite news author Irene Aldridge title What is HighFrequency Trading, After All? url http www.huffingtonpost.com irene aldridge what is highfrequency tr b 639203.html publisher Huffington ... a day ref http www.youtube.com watch?v FGHbddeUBuQ What is HighFrequency Trading video ref At the end ... absorbs capital from slower day trading platforms. Highfrequency trading removes any value ... title HighFrequency Traders Are Turning Markets Into A Casino url http articles.businessinsider.com ... work CounterPunch date April 23, 2010 accessdate May 8, 2010 ref . Highfrequency traders compete on a basis of speed with other highfrequency traders, not long term investors who typically look ... date April 21, 2010 accessdate September 10, 2010 ref As a result, highfrequency trading has been ... frequency trading url http www.huffingtonpost.com irene aldridge how profitable are high f b 659466.html ... just a fraction of a penny per share or currency unit on every trade, highfrequency traders move in and out ... significantly positive results at the end of every day. ref name whatis Highfrequency trading ... their entire portfolios on a daily basis. ref name secletter1 By 2010 highfrequency trading accounted ... and highfrequency trading were both found to have contributed to volatility on the May 6, 2010 Flash Crash , when highfrequency liquidity providers were in fact found to have withdrawn from ... work Reuters date July 7, 2011 accessdate July 12, 2011 ref History Highfrequency trading has taken ... highfrequency trading was a little known topic outside the financial sector, with an article published ... July 23, 2009 accessdate Sept. 10, 2010 ref Market growth In the early 2000s, highfrequency trading ... highfrequency trading might be accounted. ref name speedPays As of the first quarter in 2009, total assets under management for hedge funds with highfrequency trading strategies were 141 billion ... more details
MWband freq 3 to 30 gigahertz GHz bands Super highfrequency or SHF refers to radio frequency radio frequencies RF in the range of 3 Hertz GHz and 30 GHz. This band of frequencies is also known as the centimetre band or centimetre wave as the wavelengths range from ten to one centimetres. Description The International Telecommunication Union ITU , an international civil organization established to standardized worldwide telecommunication s, have stated that the superhigh frequency is encountered between 100 mm to 10 mm. Super highfrequency electromagnetic waves are relatively short for radio waves . This frequency is used for microwave devices, Wireless LAN WLAN , most modern radar s. The commencing Wireless USB technology will be using approximately 1 3 of this spectrum. Uses Some uses are IEEE 802.11a wireless LANs, satellite uplinks downlinks, and terrestrial high speed data links, such as cellular telephone Backhaul telecommunications backhauls . See also Knife edge effect Microwave External links Tomislav Stimac, http www.vlf.it frequency bands.html Definition of frequency bands VLF, ELF... etc. . IK1QFK Home Page vlf.it . In s Vidal Casti eira, http www.broadbandhomecentral.com report backissues Report0308 3.html Celeria Wireless Access To Cable Networks radio spectrum Telecommunications EMSpectrum telecomm stub Category Radio spectrum Category Wireless ar ca SHF cv da SHF de Zentimeterwelle es SHF eo Centimetra ondo fa fr Supra haute fr quence hi SHF it Super highfrequency nl Super highfrequency ne SHF ja no Superh y frekvens pl Fale centymetrowe ru fi Super highfrequency sv SHF frekvensband zh ... more details
Unreferenced date December 2009 A highfrequency approximation or high energy approximation for scattering or other wave propagation problems, in physics or engineering , is an approximation whose accuracy increases with the size of features on the scatterer or medium relative to the wavelength of the scattered particles. Classical mechanics and geometric optics are the most common and extreme highfrequency approximation, where the wave or field properties of, respectively, quantum mechanics and electromagnetism are neglected entirely. Less extreme approximations include, the WKB approximation , physical optics , the geometric theory of diffraction , the uniform theory of diffraction , and the physical theory of diffraction . When these are used to approximate quantum mechanics , they are called semiclassical approximations. See also Electromagnetic modeling DEFAULTSORT HighFrequency Approximation Category Scattering Category Scattering, absorption and radiative transfer optics ... more details
Interventions infobox Name Highfrequency ventilation Image Caption ICD10 ICD9unlinked MeshID D006612 OPS301 OtherCodes Highfrequency ventilation is a type of mechanical ventilation that employs very ... cite journal author Krishnan JA, Brower RG title Highfrequency ventilation for acute lung injury ... TJ, Morganroth ML. Highfrequency ventilation. Chest 1989 96 1380. ref Highfrequency ventilation ... Bollen CW, Uiterwaal CS, van Vught AJ. Systematic review of determinants of mortality in highfrequency ... flavors of Highfrequency ventilation . ref name krishan Each type has its own unique ... of exhalation phase. HighFrequency Ventilation may be used alone, or in combination with conventional .... Specifications and capabilities will vary depending on the device manufacturer. HighFrequency Ventilation Passive HighFrequency Jet Ventilation File Inhaled Nitric Oxide iNO Delivery with Highfrequency Jet Ventilation HFJV .jpg thumb Inhaled Nitric Oxide iNO Delivery with Highfrequency Jet Ventilation Highfrequency jet ventilation HFJV is provided by the Bunnell Life Pulse HighFrequency Ventilator ... for a very brief duration, about 0.02 seconds, and at highfrequency 4 11 hertz. Tidal volumes 1 ml ... . Usage of highfrequency jet ventilation is recommended in neonates and adults with severe lung ... , M. Klain & J. V. Snyder title Comparison of highfrequency jet ventilation to conventional ventilation ... Pulse HighFrequency Ventilator is indicated for use in ventilating critically ill infants with pulmonary ... and in gestation age from 24 to 41 weeks. The Bunnell Life Pulse HighFrequency Ventilator is also indicated ... of highfrequency ventilation include those commonly found during the use of conventional positive pressure ... Bronchopulmonary dysplasia Contraindications Highfrequency jet ventilation is contraindicated ... s lungs, as well as loss of lung volume due to tension pneumothorax . HighFrequency Percussive Ventilation HFPV Highfrequency percussive ventilation combines HFV plus time cycled, pressure ... more details
In signal processing , the highfrequency content measure is a simple measure, taken across a signal spectrum usually a STFT spectrum , that can be used to characterize the amount of highfrequency content in the signal. The magnitudes of the spectral bins are added together, but multiplying each magnitude by the bin position proportional to the frequency . Thus if X k is a discrete spectrum with N unique points, its highfrequency content measure is math mathrm HFC sum i 0 N 1 i X i math In contrast to perceptual measures, this is not based on any evidence about its relevance to human hearing . Despite that, it can be useful for some applications, such as onset detection . The measure has close similarities to the spectral centroid measure, being essentially the same calculation but without normalization according to overall magnitude. References P. Brossier, J. P. Bello and M. D. Plumbley. http aubio.piem.org articles brossier04realtimesegmentation.pdf Real time temporal segmentation of note objects in music signals , in Proceedings of the International Computer Music Conference ICMC 2004 , Miami, Florida, USA, November 1 6, 2004. Masri, P. 1996 . Computer modeling of Sound for Transformation and Synthesis of Musical Signal. PhD dissertation, University of Bristol. Category Digital signal processing Signal processing stub no M l p h yfrekvent innhold ... more details
Tremendously highfrequency THF is a band designation used by some authors ref cite book last Tanenbaum first Andrew title Computer Networks year 2002 publisher Prentice Hall location page 101 isbn 9780130661029 pages 912 url http books.google.com books?id Pd z64SJRBAC&pg PA101&lpg PA101&dq tremendously high frequency&source bl&ots RCMLIuV 9y&sig f1vHv6mMNmCqjjfFauDZQqADgTg&hl en&ei 8IiGTZWOAcmY0QGulaXWCA&sa X&oi book result&ct result&resnum 10&ved 0CEcQ6AEwCTgK v onepage&q tremendously 20high 20frequency&f false ref to refer to a decade band in the submillimeter radiation terahertz radiation range. It follows the ITU EHF band in increasing frequency order. dubious date April 2012 THF runs the range of frequencies from 300 gigahertz to 3 terahertz , laying in the low or far infrared range of the electromagnetic spectrum . The wavelength in this band varies from one to one tenth of a millimetre. Amateur Radio Service operators make experiments around 322 GHz, 403 GHz and 411 GHz. See also Terahertz radiation Radio spectrum References Reflist Radio spectrum DEFAULTSORT Tremendously HighFrequency Category Radio spectrum Electronics stub ... more details
HighFrequency Internet Protocol acronyms HFIP or HF IP. Usually associated with Automatic Link Establishment and HF radio data communications. HFIP provides protocol layers enabling internet file transfer, chat, web, or email. HFIP commonly uses ionosphere propagation of radio waves to form a wide area network that can span thousands of kilometers. HF transceivers in HFIP service typically run 20 to 150 Watts for portable or mobile units, up to approximately 2000 Watts transmitter output for high power base stations with HFIP servers. STANAG 5066 is a common HFIP standard. An amateur radio HFIP network called HFLINK ref cite web url http hflink.com title HFLINK accessdate 21 Sep 2010 ref uses Automatic Link Establishment for initiating data communications, with ARQ 8FSK frequency shift keying and PSK phase shift keying signals. References reflist Category Internet protocols internet stub ... more details
File UHDTV.svg thumb right UHDTV resolution shown in comparison to HD and SD formats UltraHigh Definition ... to replace HD BBC News Online Articles http www.ultrahdtv.net What is Ultra HDTV? http www.cdfreaks.com news Ultrahigh resolution television UHDV prototype.html Ultrahigh resolution television UHDV ... High definition Video formats Emerging technologies Category Film and video technology Category Upcoming products Category Emerging technologies ca Ultra alta definici cs UltraHigh Definition Television de UltraHigh Definition Television es Ultra alta definici n fa fr Ultrahigh definition television ko it Televisione a Ultra Alta Definizione he Ultra HDTV nl UltraHigh Definition Television ja nap Ultra Haveta Definizzione Visione no UltraHigh Definition Television pl UltraHigh Definition Television pt Televis o de ultra alta defini o ru sk UltraHigh Definition Television fi UltraHigh Definition Television sv UltraHigh Definition Television th tr Ultra y ksek z n rl kl ... High definition television HDTV , which brings it to roughly the detail level of IMAX . ref ... cite journal date 2006 05 02 title Ultra HD draws crowds, interest at NAB2006 journal BroadcastEngineering ... ultra hd interest 20060502 accessdate 2007 02 14 ref In November 2005, NHK demonstrated a live ... paper url http www.aptina.com news press aptina imaging introduces new high performance cmos sensor for high definition broadcasting video camera title Aptina Imaging introduces new high performance cmos sensor for high definition broadcasting video camera ref During IBC 2008 Japan s NHK , Italy s RAI ... a more realistic viewing experience High Efficiency Video Coding HEVC Notes and references reflist ...&en 935183cee9a4bd49&ei 5007 Just Like High Definition TV, but With Higher Definition The New York Times ... ultra hd.pdf Super Hi Vision research on a future ultra HDTV system Masayuki Sugawara, EBU Technical ... more details
Orphan date October 2011 Infobox company company name HighFrequency Economics, Ltd. company logo http www.hifreqecon.com images graph.gif company slogan company type Private company Private foundation 1988 location Valhalla, New York industry key people Carl B. Weinberg homepage http www.hifreqecon.com www.hifreqecon.com HighFrequency Economics, Ltd. is an economics firm founded by Carl B. Weinberg located in Valhalla, New York . ref http www.hifreqecon.com home.html HighFrequency Economics Website ref Description The firm was founded by Carl B. Weinberg , who received his B.Sc. from Rutgers University and Ph.D. from University of Pennsylvania , after he left his position as economist for Shearson Lehman Brothers . The firm produces independent analysis of the global economy and markets, in the form of daily research. ref http www.hifreqecon.com home.html Company Website ref The firm provides several products, namely daily and weekly notes on the US and global economies. In the publications, economists Dr. Carl Weinberg of New York and Dr. Ian Shepherdson of London analyze highfrequency economic data in the United States, the Euro Zone, France, Germany, the United Kingdom, Japan, China, Canada and Australia, tracking yield curve s, exchange rates, inflation and other economic indicators. ref http www.hifreqecon.com products and services.html Products and Services ref The firm does not provide investment advice rather, it provides a subscriber with economic knowledge that it believes will help the client to make day to day, and long term, financial decisions. Approximately 350 institutions subscribe to the firm s publications, especially investment management firms, hedge funds, asset management firms. Weinberg and Shepherdson have been quoted frequently by The New York Times , The Wall Street Journal , The Times and other media. History The firm was founded in 1988 ... 12 July 2011. ref References reflist External links http www.hifreqecon.com HighFrequency Economics ... more details
orphan date October 2009 Wikify date October 2009 HighFrequency Data Link HighFrequency Data Link HFDL is an ACARS communications media used to exchange data such as Aeronautical Operational Control AOC messages, Controller Pilot Data Link Communication CPDLC messages and Automatic Dependent Surveillance ADS messages between aircraft end systems and corresponding ground based HFDL ground stations. Using the unique propagation characteristics of highfrequency radio waves, the ground stations provide data link communications to properly equipped aircraft operating anywhere in the world. The result, pilots can always communicate with someone on the ground. Avionics Supporting HFDL To use the service, an aircraft only needs a Communications Management Unit CMU , or equivalent and an HFDL data radio. The CMU is an airborne communications router that interfaces with many aircraft communications systems including SATCOM, VHF, HFDL, FMS and others. Global Coverage Today, HFDL is an air ground data link standard with coverage in virtually every corner of the globe, approximately convert 168000000 sqmi km2 where aircraft are never out of touch both in the air and on the ground. Evolving Technology The HFDL network and avionics are a continuing evolution. Recent innovations in avionics software developed by both Honeywell and Collins have enhanced performance and contribute to the service s outstanding message success rates. There is continued investment in the HFDL infrastructure and there is a long term strategy in place to ensure its success. ARINC have been quoted as saying that the system and its use have grown at rates above 20 for each of the past ten years and it now supports over sixty airlines with well over 1,200 aircraft sending more than 1 million messages a month. In 2009 ... Frequency Selection HFDL does not require pilots to dial in specific frequencies, as with HF voice, the data radios constantly scan and select the most efficient frequency to use making operation ... more details
MWband freq 30 to 300 gigahertz GHz bands Extremely highfrequency is the highest radio frequency band radio band . EHF runs the range of Radio frequency frequencies from 30 to 300 gigahertz , above ... 10 mW cm sup 2 sup or less electromagnetic radiation of extremely highfrequency especially ... HighFrequency EHF Therapy. More than 10 000 devices are used for Millimeter Wave Therapy ... wave technology EMSpectrum DEFAULTSORT Extremely HighFrequency Category Radio spectrum de ... haute fr quence hi EHF it Extremely highfrequency lb Millimeterwell nl Extremely highfrequency ne EHF ja no Ekstremt h y frekvens pl Fale milimetrowe pt Extremely highfrequency fi Extremely highfrequency sv Millimeterv gor tr A r y ksek frekans zh ... communications range, it also allows for smaller frequency reuse distances than lower frequencies ... frequency reuse potential. Applications Scientific research This band radio band is commonly used in radio astronomy and remote sensing . Ground based radio astronomy is limited to high altitude sites ... and pressure. The ITU non exclusive passive frequency allocation at 57 59.3 is used for atmospheric ... of Defense satellite F 16 make use of this frequency range. ref name Comments of IEEE Geoscience ... GHz is used for licensed high speed microwave data links, and the 60 GHz band can be used ... to point high bandwidth communication links. These frequencies, as opposed to the 60 GHz frequency, require a transmitting license in the US from the Federal Communications Commission FCC ..., including high speed, point to point wireless local area networks and broadband Internet access . WirelessHD ... high resolution. Uses of the millimeter wave bands include point to point communications, intersatellite ..., to achieve the same high directivity and high gain. The immediate consequence of this high directivity, coupled with the high free space loss at these frequencies, is the possibility of a more efficient ... more details
no footnotes date April 2012 HighFrequency Impact Treatment or HiFIT Method is the treatment of welded steel constructions at the weld transition to increase the fatigue strength. Features The durability and life of dynamically loaded, welded steel structures is determined in many cases by the welds, particular the weld transitions. Through selective treatment of the transitions grinding abrasive cutting abrasive blasting , hammering, etc. , the durability of many designs increase significantly. Hammer ng methods have proven to be particularly effective treatment methods and were within the joint project REFRESH ref http stahl.vaka.kit.edu 276.php Website of the Karlsruhe Institute of Technology KIT Project REFRESH ref extensively studied and developed. The HiFIT process HighFrequency Impact Treatment is such a hammering method that is universally applicable, requires only a low tech equipment and still offers high reproducibility and the possibility for quality control. Operation The HiFIT hammer operates with a hardened pin with a ball resting on the workpiece diameter D 3. This pin is hammered with an adjustable intensity at around 180 300Hz at the weld toe. Local mechanical deformations occur in the form of a treatment track. The weld toe is deformed plastically and bonded. The induced compressive residual stresses in the treatment prevent the track cracking and the crack propagation on the surface. Evidence In numerous experiments at various institutes and universities an 80 to 100 percent increase of fatigue strength and a 5 to 15 fold increase in weld life could be demontrated. The most extensive research project was from 2006 2009 REFRESH life extension of existing and new welded steel structures P702 . In this research project, the HiFIT device was developed and made ... details and FEM supported design methods show the high efficiency with conventional S355J2 and fine ... times of the loads on the weld are transferable. Thus, the use of high tensile steels for lighter ... more details
Ultrahigh vacuum UHV is the vacuum regime characterised by pressure s lower than about 10 sup 7 sup ... it slowly during evacuation removal of gas . Typical uses for ultrahigh vacuum Ultrahigh ... surface. Achieving ultrahigh vacuum Extraordinary steps are required to reach UHV, including the following High pumping speed &mdash possibly multiple vacuum pump s in series and or parallel Minimize surface area in the chamber High conductance tubing to pumps &mdash short and fat, without obstruction ... pressure Material limitations Materials which are not allowed due to high vapour pressure majority ... for high vacuum must be used common steel due to oxidizing, which greatly increases adsorption area ... in cryogenic apparatus, but its low melting point prevents use in baked systems. zinc , cadmium High vapor pressures during system bake out. Technical limitations screws threads have a high surface area and tend to trap gases, therefore are avoided welding standard welding cannot be used due to high ..., can prove beneficial in applications such as Atomic force microscopy . High vacuum enables high Q factor s on the cantilever oscillation. Scanning tunneling microscopy . High vacuum reduces ... which is a high capacity hydrogen sponge create special outgassing problems. Outgassing .... There is no single vacuum pump that can operate all the way from atmospheric pressure to ultrahigh vacuum. Instead, a series of different pumps is used, according to the appropriate pressure ... down to 100 pPa 10 sup 12 sup Torr . Measuring high vacuum main Pressure measurement Measurement of high vacuum is done using a nonabsolute gauge that measures a pressure related property of the vacuum ... when biased at a high negative potential. The impact of the electrons bombarding the sample at high energy causes it to heat. For thermal radiation, a filament is mounted close to the sample and resistively heated to high temperature. The infrared energy from the filament heats the sample. See ... more details
Ultrahigh temperature processing , less often ultra heat treatment both abbreviated UHT , or ultra pasteurization is the sterilization microbiology sterilization of food by heating it for an extremely short period, around 1 2 seconds, at a temperature exceeding 135 C 275 F , which is the temperature required to kill spore s in milk . ref name guelph cite web url http www.foodsci.uoguelph.ca dairyedu uht.html title UHT Processing accessdate 2008 01 07 last first coauthors date work publisher University of Guelph, Department of Dairy Science and Technology ref The most common UHT product is milk , but the process is also used for fruit juices, cream , soy milk , yogurt , wine , soup s, and stew s. ref name guelph UHT milk was invented in the 1960s, and became generally available for consumption in the 1970s. ref cite news title Taste for a cool pinta is a British Tradition publisher The Times url http www.timesonline.co.uk tol news uk health article2658180.ece accessdate 2008 04 03 location London first Valerie last Elliott date 2007 10 15 ref High heat during the UHT process can cause Maillard reaction Maillard browning and change the taste and smell of dairy products. ref cite journal last Clare first D.A. authorlink coauthors W.S. Bang, G. Cartwright, M.A. Drake, P. Coronel and J. Simunovic date 1 December 2005 title Comparison of Sensory, Microbiological, and Biochemical Parameters of Microwave Versus Indirect UHT Fluid Skim Milk During Storage journal Journal of Dairy Science ... of the Day Use dmy dates date May 2011 DEFAULTSORT UltraHigh Temperature Processing Category Food preservation Category Milk ca Uperitzaci cs Ultrahigh temperature processing da UHT behandling ... pasteurization high temperature short time , in which the milk is heated to 72 C 161.6 F for at least ... Pearson, Toronto. 2005. pg 39 ref In fact, in a hot country such as Spain, UHT is preferred due to high ... foods ultra pasteurized milk An article focusing on the negative aspects of UHT milk from the Weston ... more details
Context date June 2008 Ultrahigh temperature metamorphism UHT represents extreme crustal metamorphism with metamorphic temperatures exceeding 900 C. ref name Harley1998 cite journal last S.L. first Harley title On the occurrence and characterization of ultrahigh temperature crustal metamorphism year 1998 volume 138 pages 81 107 doi 10.1144 GSL.SP.1996.138.01.06 url http sp.lyellcollection.org cgi content abstract 138 1 81 issue 1 journal Geological Society, London, Special Publications ref ref name Brown2007 Brown, M., 2007, Metamorphic conditions in orogenic belts a record of secular change. International Geology Review 49, 193 234 ref ref name Kelsey2008 ref name Santosh&Omori2008a Santosh, M., Omori, S., 2008a, CO sub 2 sub flushing a plate tectonic perspective. Gondwana Research 13, 86 102 ref Granulite Metamorphic facies facies rocks metamorphosed at very high temperatures were identified in the early 1980s, although it took another decade for the geoscience community to recognize UHT metamorphism as a common regional phenomenon. Petrology Petrological evidence based on characteristic mineral assemblages backed by experimental and Thermodynamics thermodynamic relations demonstrated that the Earth s Crust geology crust can attain and withstand very high temperatures 900 1000 C with or without partial melting. Definition Metamorphism of crustal rocks in which peak temperature exceeds 900 C, recognized either by robust thermobarometry or by the presence of a diagnostic mineral assemblage in an appropriate bulk composition and oxidation state, such as assemblages with orthopyroxene ..., 2008, On ultrahigh temperature crustal metamorphism. Gondwana Research 13, 1 29 ref ref name Santosh&Omori ... of ortho and clinopyroxene in high grade BIF of the Voronezh Crystalline Massif Evidence of ultrahigh ... Canada and Enderby Land, Antarctica implications for high temperature isotopic thermometry volume ... for prograde high pressure eclogite facies? metamorphism. Earth and Planetary Science Letters ... more details
operating at highfrequency HF . Modern direction finding of both communications and noncommunications ... on the highfrequency radio transmitters employed by the German Kriegsmarine in World War II. There were severe technical problems of engineering effective highfrequency direction finding systems ... RAFTER remotely confirming that a superhet radio receiver is listening to a certain frequency References reflist refbegin cite book title Secret Weapon U.S. HighFrequency Direction Finding in the Battle ... information from unintentional signals from transmitters, such as the oscillator frequency of a superheterodyne ... Duff equipment on the museum ship HMS Belfast C35 HMS Belfast Along with Sonar ASDIC sonar , UltraUltra code breaking COMINT and radar , Huff Duff was a valuable part of the Allies armoury in detecting ... of radar. This allowed hunter killer ships and aircraft to be dispatched at high speed in the direction ... Radio frequency identification Category World War II British electronics Category World War II ... more details
Orphan date December 2011 Image HFOV 3100A.jpg thumb right The SensorMedics HighFrequency Oscillatory Ventilator is a patented highfrequency ventilation highfrequency 150 Respiratory rate R sub f sub mechanical ventilator by Cardinal Health . ref name pmid19499589 cite journal author Messier SE, Digeronimo RJ, Gillette RK title Comparison of the Sensormedics 3100A and Bronchotron transporter in a neonatal piglet ARDS model. journal Pediatr Pulmonol year 2009 volume 44 issue 7 pages 693 700 pmid 19499589 doi 10.1002 ppul.21041 pmc url ref The 3100A model was approved for use in the United States by the Food and Drug Administration in 1991 for neonatal application for the treatment of all forms of respiratory failure then subsequently approved in 1995 for Pediatric Application, with no upper weight limit , for treating selected patients failing conventional ventilation. The Highfrequency oscillatory ventilator 3100A The 3100A model is used for infants and children under 35 kilograms 35 kg . ref name pmid21037502 cite journal author Custer JW, Ahmed A, Kaczka DW, Mulreany DG, Hager DN, Simon BA et al. title In vitro performance comparison of the Sensormedics 3100A and B highfrequency oscillatory ventilators. journal Pediatr Crit Care Med year 2011 volume 12 issue 4 pages e176 80 pmid 21037502 doi 10.1097 PCC.0b013e3181fe3028 pmc url ref 3100B The 3100B model is used for all other people greater than 35 kilograms 35 kg . ref name pmid21037502 Controls and settings Bias flow Bias flow Adjusting Bias Flow will affect mean P sub aw sub . Lowering bias flow may decrease ..., McGeorge AD, Hancock SW title Failure of adequate ventilation using Sensormedics 3100A HighFrequency ... where lung recruitment is necessary. FrequencyFrequency R sub f sub is the number of breaths in one ... values and ranges The smaller the patient, the higher the frequency. The larger the patient, the lower the frequency. Changes in frequency Decrease in frequency increased tidal volume . Increase in frequency ... more details
high? In astroparticle physics , an ultrahigh energy cosmic ray UHECR or extreme energy cosmic ray ... show that ultrahigh energy cosmic ray arrival directions appear to be correlated with extragalactic ... matter Main Dark matter Conversion of dark matter into ultrahigh energy particles It is hypothesized that active galactic nuclei are capable of converting dark matter into high energy protons ... will collide with incoming particles creating collisions of very high energy. It is in these collisions, according to Pavlov, that ordinary visible protons can form. These protons would have very high energies. Pavlov claims that evidence of this is present in the form of ultrahigh energy cosmic ray ... Matter into Visible Particles? ref Ultrahigh energy cosmic ray particles may also be produced by the decay ... Ultrahigh energy cosmic rays from super heavy X particle decay ref such as Holeum s. ref http arxiv.org ... and Abhijit Chavda UltraHigh Energy Cosmic Rays from decays of Holeums in Galactic Halos ref Such very ... explanation for the observed ultrahigh energy cosmic rays UHECR . Dark matter particles as ultrahigh energy particles High energy cosmic ray particles traversing intergalactic space suffer ... designed to detect ultrahigh energy cosmic ray particles with energies beyond 10 sup 20 sup electron ... ray particle. Ultrahigh energy cosmic ray observatories See also Category High energy particle telescopes ... Antenna ANITA detects ultrahigh energy cosmic neutrino s believed to be caused by ultrahigh energy ... Cambridge, MA isbn 0738201391 pages A good introduction to ultrahigh energy cosmic ray particles ... name http www.datasync.com rsf1 uhecrs.htm UltraHigh Energy Cosmic Rays 1908 , History ... s High Resolution Fly s Eye Cosmic Ray Detector Fly s Eye Cosmic Ray Detector , at least fifteen similar events have been recorded, confirming the phenomenon. These very high energy cosmic ray particles ... losing energy this is known as the Greisen Zatsepin Kuzmin limit or GZK limit. The source of such high ... more details
Ultrahigh voltage UHV electricity transmission in China is being introduced and four UHV circuits are completed or under construction. Background Since 2004, electricity consumption in People s Republic of China China has been growing at an unprecedented rate due to the rapid growth of industrial sectors. Serious supply shortage during 2005 had impacted the operation of many Chinese companies. Since then, China has very aggressively invested in electricity supply in order to fulfill the demand from industries and hence secure economic growth . Installed generation capacity has run from 443 Gigawatt GW at end of 2004 to 793GW at the end of 2008. ref name China Stat Data available from China National Statistics Bureau, http www.stats.gov.cn ref The increment in these four years is equivalent to approximately one third of the total capacity of the USA , or 1.4 times the total capacity of Japan . ref Data available from Electricity Information Administration, DOE, US, http www.eia.doe.gov ref During the same period of time, power consumption has also risen from 2,197 Terawatt hour TWh to 3,426TWh. ref name China Stat Transmission and distribution On the Electric power transmission transmission ... and reducing losses by deploying long distance UltraHigh Voltage AC UHVAC, referring to 1000 kV and UltraHigh Voltage DC UHVDC, referring to 800 kV transmission installing high efficiency amorphous ... , Study on Strategic Planning of UltraHigh Voltage Grid Development in China, Ph.D Thesis, Shangdong ... UHVDC has been widely accepted. ref name han Han,X.P. 2009 Clone of Tyrannosaur debate of ultrahigh ..., W.X. 2009 Coal transportation or ultrahigh voltage?, http www.china5e.com show.php?contentid 42259 ... construction For explanation of pulses and bipole , see High voltage direct current As of Sept 2009 ... reform. ref name han References Reflist 2 Energy in the People s Republic of China DEFAULTSORT UltraHigh Voltage Electricity Transmission In China Category Energy in China Category Electric power ... more details
Unreferenced date December 2009 The HighFrequency Global Communications System HF GCS is a network of single sideband shortwave transmitters of the United States Air Force which is used to communicate with aircraft in flight, ground stations and some United States Navy surface assets. All worldwide receiving and transmitting sites in the HF GCS system are remotely controlled from Andrews AFB . Before 1 October 2002 it was known as the Global HighFrequency System GHFS . HF GCS stations tend to operate in the aviation bands clustered around 5, 8 and 11 12 MHz, although other frequencies are in use. The primary HF GCS voice frequencies are 4724.0 kHz, 6739.0 kHz, 8992.0 kHz, 11175.0 kHz, 13200.0 kHz and 15016.0 kHz. In addition to the HF GCS, U.S. aircraft frequently use Military Affiliate Radio System MARS HF stations 13927.0 kHz and Canadian Forces HF stations 11232.0 kHz to relay messages. One common use for the HF GCS is to place telephone calls from the aircraft in flight by means of the Defense Switched Network DSN to an Air Force base to obtain local weather conditions, to arrange for refueling, and to inform the base of the number of passengers and crew. The HF GCS also carries Emergency Action Messages . Although transmissions are often single sideband, the use of the Automatic link establishment ALE transmission mode is more and more common. New South Wales HF GCS complements the use of satellite communications between aircraft and ground stations. Stations of the HF GCS Network Andersen Global, Andersen Air Force Base , Guam Island Andrews Global, Andrews Air Force Base , Maryland USA Ascension Global, RAF Ascension Island , Atlantic Ocean Croughton Global, RAF Croughton , United Kingdom Diego Garcia Global, Diego Garcia Naval Station, Indian Ocean Elmendorf Global, Elmendorf Air Force Base , Alaska Hickam Global, Hickam Air Force Base , Hawaii Lajes Global, Lajes Field , Azores McClellan Global aka West Coast Global ... more details
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