Image Pythagoras tree 1 1 13 Summer.svg thumb The Pythagoras tree. The Pythagoras tree is a Plane geometry plane fractal constructed from Square geometry squares . Invented by the Netherlands Dutch mathematics teacher Albert E. Bosman in 1942, ref http www.arsetmathesis.nl bruno0402.htm ref it is named after the Ancient Greece ancient Greek mathematician Pythagoras because each triple of touching squares encloses a right triangle , in a configuration traditionally used to depict the Pythagorean theorem . If the largest square has a size of L × L , the entire Pythagoras tree fits snugly inside a box of size 6 L × 4 L . ref http www.wisfaq.nl showrecord3.asp?id 32367 Wisfaq.nl ref ref cite book author Pourahmadazar, J. Ghobadi, C. Nourinia, J. title Novel Modified Pythagorean Tree Fractal Monopole Antennas for UWB Applications publisher IEEE location New York year 2011 pages 10.1109 LAWP.2011.2154354 url http ieeexplore.ieee.org search freesrchabstract.jsp?tp &arnumber 5766703&queryText 3Dpourahmadazar 26openedRefinements 3D 26searchField 3DSearch All ref The finer details of the tree resemble the L vy C curve . Construction The construction of the Pythagoras tree begins with a square geometry square . Upon this square are constructed two squares, each scaled down by a linear factor of 2, such that the corners of the squares coincide pairwise. The same procedure is then applied recursion recursively to the two smaller squares, ad infinitum . The illustration below shows the first few iteration s in the construction process . ref http www.wisfaq.nl showrecord3.asp?id 32367 Wisfaq.nl ref ref cite book author Pourahmadazar, J. Ghobadi, C. Nourinia, J. title Novel Modified Pythagorean Tree Fractal Monopole Antennas for UWB Applications publisher IEEE location New York year 2011 pages 10.1109 LAWP.2011.2154354 url http ieeexplore.ieee.org search freesrchabstract.jsp?tp &arnumber 5766703&queryText 3Dpourahmadazar 26openedRefinements 3D 26se ... more details
wideband UWB beam steering. Reciprocal versus non reciprocal Reciprocal T R Non reciprocal T or R ... cancel out the distortion of the right handed low pass sections Switched line Applications UWB beam ... more details
for the drug known as Phy Methadone Unreferenced date July 2009 PHY is an abbreviation for the physical layer of the OSI model . An instantiation of PHY connects a link layer device often called a Media Access Control MAC to a physical medium such as an optical fiber or copper cable . A PHY device typically includes a Physical Coding Sublayer PCS and a Physical Medium Dependent PMD layer. The PCS encodes and decodes the data that is transmitted and received. The purpose of the encoding is to make it easier for the receiver to recover the signal. Example uses Wi Fi The PHY portion consists of the RF, mixed signal and analog portions, that are often called transceivers, and the digital baseband portion that place high demand on the digital signal processing DSP and communication algorithm processing, including channel code s. It is common that these PHY portions are integrated with the media access control MAC layer in System on a chip SOC implementations. Other similar wireless applications are 3G 4G 3GPP Long Term Evolution LTE , WiMAX , UWB etc. Ethernet A PHY chip PHYceiver is commonly found on Ethernet devices. Its purpose is physical, analog signal access to the link. It is usually used in conjunction with an Media Independent Interface MII chip or interfaced to a microcontroller that takes care of the higher layer functions. Universal Serial Bus USB A PHY chip is integrated into most USB controllers in hosts or embedded systems and provides the bridge between the digital and modulated parts of the interface. IrDA The Infrared Data Association s IrDA specification includes an IrPHY specification for the physical layer of the data transport. Serial ATA SATA Serial ATA controllers like the VIA Technologies VT6421 use a PHY. SDRAM chip interfaces Flash memory chip interfaces Ethernet physical transceiver Image Realtek rtl8201bl ethernet phy.jpg thumb PHYceiver chip Realtek RTL8201 An Ethernet physical transceiver is often called a PHYceiver . It is a device that op ... more details
Kwak linktext , spelled in hangul is a surname in Korea . The name can be traced as early as the Kim Silla kingdom. Today an estimated 187,000 people in Korea carry the name. They use the same China Chinese character as the Guo Guo Kuo Kwok of China. There are different transliterations of the name, but in South Korea, the emerging new spelling is Kwark ref http www.koreamed.org SearchBasic.php?KM 1&DT 0&DC 20&DisplaySearchResult 1&SS 2 ref , presumably following the lead of Park Korean name Park . Kwak is often mispronounced as Quack. Other variations of Kwak spelled by Koreans include Kwalk, Gwak, Kwark Kwalk, and Koak. The Vietnamese use Quach . ref http www.facebook.com group.php?v wall&viewas 0&gid 2213395513 ref The Japanese use Kaku. ref http en.wikipedia.org wiki Kuo Tai yuan ref ref http www.baseball reference.com bullpen Taigen Kaku ref The Chinese Indonesians use Kwik. ref http en.wikipedia.org wiki Kwik surname Examples of Chinese names and their Indonesian versions ref Infobox Korean name hangul wikt hanja linktext lim , rr Gwak mr Kwak List of Notable People with Kwak Surname Chung Hwan Kwak Kwak Dae Sung 2006 Olympic Judo Silver Medalist Kwak Hee Joo South Korean Football Soccer Player Kwak Jae yong South Korean Film Director Kwak Ji min South Korean Actress Kwak Kyung taek South Korean Film Director Gwak Mi Hee b. 1974 , South Korean cross country mountain biker and ski mountaineer Kwak Min Jung 2010 Olympic Figure Skater Ji Sung Ji Sung whose real name is Kwak Tae geun South Korean Actor Kwak Tae Hwi . South Korean Football Soccer Player. ref http people.search.naver.com search.naver?sm tab txc&where people profile&ie utf8&query EA B3 BD ED 83 9C ED 9C 98&os 182451 ref Kwak Yoon Gy . 2010 Olympic Short Track Relay Silver Medalist Kwak Kyung Sup . Professor at Inha University and President of UWB Forum, South Korea ref http uwb.inha.ac.kr ref References Reflist surname Kwak surname stub DEFAULTSORT Kwak Surname Category Korean language ... more details
This is a list of universities in the Democratic Republic of the Congo. http www.uniband.org Universit de Bandundu Ville UNIBAND University of Goma University of Kinshasa University of Lubumbashi Kongo University Acad mie des Beaux Arts Kinshasa Acad mie des Beaux Arts Kinshasa American University of Kinshasa Centre d tudes gyptologiques C.A. Diop de l INADEP Kinshasa Centre interdisciplinaires pour l ducation permanente CIDEP Kinshasa cole d Informatique d lectronique et d Expertise comptable EIECO Kinshasa Institut des b timents et des travaux publics IBTP Kinshasa Institut facultaire des sciences de l information et de la communication IFASIC Kinshasa Institut sup rieur des techniques appliqu es ISTA Kinshasa Institut Sup rieur des Techniques M dicales ISTM KIN Kinshasa Institut Sup rieur de Statistique de Kinshasa I.S.S. KIN Institut sup rieur des arts et m tiers ISAM Kinshasa Institut sup rieur p dagogique ISP Kinshasa Facult s catholiques de Kinshasa FACAKIN Faculte de Theologie Evangelique de Boma FACTEB Boma, Kongo Central Boma Universit de Kinshasa UNIKIN ,anciennement appel e Universit Lovanium Institut superieur de techniques medical de Mbuji Mayi I.S.T.M Mbuji Mayi Mbuji Mayi Universit am ricaine de Kinshasa ou Universit franco am ricaine de Kinshasa Universit cardinal Malula Kinshasa Universit chr tienne de Kinshasa UCKIN Universit centrale de Kinshasa Universit Kinshasa Binza Universit libre de Kinshasa ULK Universit p dagogique nationale UPN , ancien IPN Kinshasa Universit protestante du Congo UPC Kinshasa Universit Simon Kimbangu Kinshasa Universit William Booth UWB Kinshasa Universit de Bandundu UB Kikwit Institut Africain d tudes Prospectives African Institute for Future Studies INADEP Kinshasa Institut Sup rieur P dagogique de Kikwit Bandundu Institut Sup rieur de Commerce Bas Congo , Institut Sup rieur P dagogique de Mbanza Ngungu Bas Congo , Universit Kongo Bas Congo , Universit Kasa Vubu Bas Congo , Institut superieur p d ... more details
handshakes and buffering. Underlying protocol stack UWB defines both PHY and MAC layers, which need ... are defined as mandatorily supported 53.3, 106.7 and 200 Mbit s, all other possible UWB rates being ... data that could be sent to them. Furthermore, the UWB radio and associated bandwidth may be shared ... explicitly, but instead of harnessing the base of UWB it designs a model which is valid for USB ... more details
without the body blockage experienced by microwave systems like Ultra wideband UWB . Fact date ... Real Time Locating Systems RTLS Real Time Location Systems Ultra wideband Ultra wideband UWB References ... more details
Multiple issues overly detailed March 2012 refimprove March 2012 Image Venus globe.jpg thumb right The surface of Venus , as imaged by the Magellan probe using SAR Synthetic aperture radar SAR is a form of radar whose defining characteristic is its use of relative motion, between an antenna and its target region, to provide distinctive long term coherent signal variations, that are exploited to obtain finer spatial resolution than is possible with conventional beam scanning means. It originated as an advanced form of Side looking airborne radar side looking airborne radar SLAR . SAR is usually implemented by mounting, on a moving platform such as an aircraft or spacecraft, a single beam forming antenna from which a target scene is repeatedly illuminated with pulses of radio waves at wavelengths anywhere from a meter down to millimeters. The many echo waveforms received successively at the different antenna positions are coherently detected and stored and then post processed together to resolve elements in an image of the target region. Current 2010 airborne systems provide resolutions to about 10 cm, ultra wideband systems provide resolutions of a few millimeters, and experimental terahertz SAR has provided sub millimeter resolution in the laboratory. SAR images have wide applications in remote sensing and mapping of the surfaces of both the Earth and other planets. SAR can also be implemented as inverse SAR by observing a moving target over a substantial time with a stationary antenna. Relationship to phased arrays The term synthetic , as used here, needs some clarification. That word came into popular use after chemists began to synthesize literally, to assemble from subsidiary elements materials sometimes not found in nature. It then began to be used to denote things thought of as imitations or even fake . A technique closely related to SAR uses an array referred to as a phased array of real antenna elements spatially distributed over either one or two dimen ... more details
IEEE 802.15.4 2006 Wireless USB Ultra wideband UWB 6loWPAN ONE NET Wireless Video Networks Currently ... ISM band ISM Wireless USB, UWB 3.1 to 10.6 GHz Unlicensed Ultrawideband VEmesh 868 ... more details
news ITNfiles HospitNews08HospitalDecisi.pdf ref Ultra wideband UWB ref http www.timedomain.com news RFIDUpdate072308.pdf UWB RTLS Vendor Improves Sensitivity, Lowers Cost ref Wide over ... of UWB and Narrowband ref Wireless Local Area Network WLAN, Wi Fi ref http www.nortel.com solutions ... effects is found with ultra short pulse communications, as with UWB indoor approaches. However ... more details
Orphan date April 2012 Infobox company company logo Image Remcom2.PNG 255px company name Remcom, Inc. company type Corporation foundation 1994 founder Raymond Luebbers , H. Scott Langdon and Christopher Penney location State College, Pennsylvania area served World wide industry Simulation Software products XFdtd & XStream http www.remcom.com xf7 br Wireless InSite http www.remcom.com wireless insite br XGtd http www.remcom.com xgtd br VariPose http www.remcom.com varipose br Rotman Lens Designer http www.remcom.com rotman lens designer num employees 50 homepage http www.remcom.com Remcom, Inc. in State College, Pennsylvania ref cite web url http www.remcom.com contact title Remcom Contact publisher Remcom.com date 2010 05 19 accessdate 2010 06 01 ref is a electromagnetic simulation software company founded in 1994. Remcom provides Electromagnetism electromagnetic simulation software, and created the first universally usable, Finite difference time domain method solver for the commercial electromagnetics market. ref cite web url http www.nvidia.ru object cuda app tesla.html title Electrodynamics and electromagnetic publisher Nvidia.ru date accessdate 2010 06 01 ref ref cite web url http www.globalspec.com Supplier profile RemcomUSA title About Remcom publisher Globalspec.com date accessdate 2010 06 01 ref It developed software for various electromagnetic engineering applications and its products are used by EM professionals in a wide variety of markets and applications, including antenna design, ref cite web url http bwrc.eecs.berkeley.edu Research UWB publications sbtw present 1 02.pdf title Ultra Wideband Antenna Simulations format PDF date accessdate 2010 06 01 ref microwave circuits, ref name autogenerated1 cite web url http www.mwrf.com milelec act downloadopenPDF.cfm?filename ME100108.pdf title Military Electronics format PDF date accessdate 2010 06 01 ref radio frequency, ref name autogenerated1 photonics, optics, ref cite web url http bernstein.harvard.edu re ... more details
Mustang, registered VH UWB, was bought in Australia for Flockhart to make a second attempt at the Sydney ... attempt, Flockhart crashed VH UWB in poor weather near Kallista, Victoria and was killed. ref name ... more details
1884 till 1918 color yellow at 1874 text Tarnow Leluchower Staatsbahn Tarnow Leluchow Stb. bar UWB ... UWB bar VB from 1872 till 1885 color green from 1885 till 1918 color yellow at 1874 text Vorarlberger ... more details
TransferJet is a new type of close proximity wireless transfer technology initially demonstrated publicly in early 2008 ref cite web url http www.sony.net SonyInfo News Press 200801 08 002E index.html title Sony develops TransferJet ref . By touching or bringing very close together two electronic devices, TransferJet allows high speed exchange of data. The concept of TransferJet consists of a touch activated interface which can be applied for applications requiring high speed data transfer between two devices in a peer to peer mode without the need for external physical connectors ref cite web url http www.transferjet.org tj transferjet overview.pdf title TransferJet Expanded White Paper ref . TransferJet s maximum physical layer transmission rate is 560 Mbit s. After allowing for error correction and other protocol overhead, the effective maximum throughput is 375 Mbit s. TransferJet will adjust the data rate downward according to the wireless environment, thereby maintaining a robust link even when the surrounding wireless condition fluctuates. TransferJet has the capability of identifying the unique MAC Address MAC addresses of individual devices, enabling users to choose which devices can establish a connection. By allowing only devices inside the household, for example, one can prevent data theft from strangers while riding a crowded train. If, on the other hand, one wishes to connect the device with any other device at a party, this can be done by simply disabling the filtering function. TransferJet uses the same frequency spectrum as UWB , but occupies only a section of this band available as a common worldwide channel. Since the RF power is kept under 70 dBm MHz, it can operate in the same manner as that of UWB devices equipped with Detect and Avoid DAA functionality. In addition, this low power level also ensures that there will be no interference to other wireless systems, including other TransferJet systems, operating nearby. By reducing the RF power and ... more details
Image AntennaEffect.gif 350px right thumb Figure 1 Illustration of the cause of antenna effect. M1 and M2 are the first two metal interconnect layers. The antenna effect , more formally plasma induced gate oxide damage , is an effect that can potentially cause yield and reliability problems during the Semiconductor device fabrication manufacture of MOS integrated circuits ref T. Watanabe, Y. Yoshida, Dielectric Breakdown of Gate Insulator due to Reactive Etching, Solid State Technology, Vol. 26 4 p. 263, Apr. 1984 ref ref H. Shin, C. C. King, C. Hu, Thin Oxide Damage by Plasma Etching and Ashing Processes, Proc. IEEE Int l Reliability Phys. Symp., p. 37, 1992 ref ref S. Fang, J. McVittie, Thin Oxide Damage from Gate Charging During Plasma Processing, IEEE Electron Devices Lett. Vol. 13 5 , p. 288, May 1992 ref ref C. Gabriel, J. McVittie, How Plasma Etching Damages Thin Gate Oxides, Solid State Technol. Vol. 34 6 p. 81, June 1992. ref ref Hyungcheol Shin, Neeta ha, Xue Yu Qian, Graham W. Hills, Chenming Hu, Plasma Etching Charge Up Damage to Thin Oxides, Solid State Technology, p. 29, Aug. 1993 ref . Fabs normally supply antenna rules , which are rules that must be obeyed to avoid this problem. A violation of such rules is called an antenna violation . The word antenna is something of a misnomer in this context&mdash the problem is really the collection of charge, not the Antenna radio normal meaning of antenna , which is a device for converting electromagnetic fields to from electrical currents. Occasionally the phrase antenna effect is used in this context, ref Sibille, A. 2005, doi inline 10.1109 VETECS.2005.1543247 A framework for analysis of antenna effects in UWB communications , IEEE 61st Vehicular Technology Conference, Volume 1, 30 May 1 June 2005, pp. 48 52 ref but this is less common since there are many effects, ref From the above reference Several major antenna effects are considered, like impedance matching, antenna gain, frequency dependent radiation ... more details
File Logo Szlak Dziedzictwa ydowskiego w Bia ymstoku.jpg thumb 350px right Logo of Jewish Heritage Trail in Bia ystok on the City Hall. Jewish Heritage Trail in Bia ystok is Trail blazing a marked foot trail created in June 2008 in Bia ystok , Poland , by a group of students and doctorate candidates, who participate as volunteers at The University of Bia ystok Foundation . One of the goals of the project was to Social capital generate social capital by engaging cooperation between local institutions and social groups. Project included planning the trail, publicizing an informative booklet and map in printed and electronic version, building an interactive website of the project, marking the trail sites and opening the trail to the public with a walk around the city, publicizing teacher s materials. ref http szlak.uwb.edu.pl indexen.html UWB Official website. Retrieved on 2009 07 22. ref ref http www.fodz.pl PP ?d 4&id 232&l en Walking the Jewish Heritage Trail in Bia ystok. Retrieved on 2009 07 22. ref ref http www.polskieradio.pl thenews News ?id 85293 Trail of Jewish Heritage opened in Poland. Retrieved on 2009 07 22. ref ref http szlak.uwb.edu.pl media cd offline 04 files druk trail folder english.pdf Katarzyna Nizio ek, Rados aw Poczykowski Jewish Heritage Trail in Bia ystok. Historical guide. Bia ystok The University of Bia ystok Foundation, 2008. ISBN 978 83 925169 5 8. ref ref http uczyc sie z historii.pl pl projekty zobacz 26 project on polish portal Uczy si z historii Retrieved on 2009 07 28. ref ref Monika mijewska, http miasta.gazeta.pl bialystok 1,35235,5334605,Szlak Dziedzictwa Zydowskiego otwarty.html Szlak Dziedzictwa ydowskiego otwarty Retrieved on 2009 07 28. ref ref http www.wrotapodlasia.pl pl region podlaska marka roku edycja 2008 przedsiewziecie Szlak Dziedzictwa Zydowskiego w Bialymstoku.htm nomination in contest Podlaskie Voivodeship Brand of 2008 in category Venture Retrieved on 2009 07 28. ref ref http www.rp.pl artykul 151414.html Bia y ... more details
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