Image American Cancer Society Relay For Life.jpg right thumb Relay For Life logo Relay For Life often ... . Originating in the United States, the Relay For Life event has spread to 21 countries. ref http ..., and unite a community in the fight against cancer. It is estimated that Relay For Life events ... event is https wiki.secondlife.com wiki Relay For Life of Second LifeRelay For Life of Second Life .... He recruited a small team of people and put on the first Relay For Life event in 1986. Since then, Relay .... Image Relay for life survivors lap.jpg thumb right The start of a Survivor s Lap. Survivor Lap ... event. Luminaria Ceremony Image Relay for life luminaria.jpg thumb left Close up of a luminaria placed at a Relay for Life. Relay For Life s slogan is Celebrate. Remember. Fight Back. The Luminaria ... relay crfbadvocacy ref Relay in the community Relay For Life is a volunteer run event. Citizens ... its own webpage. Each year, Relay For Life posts the top earned college and community online fundraising statistics. In 2011, the Relay For Life of Virginia Tech was the university that raised the most ... RFL FY09 TopCommunity ref Funds Money raised through Relay For Life goes to ref http www.relayforlife.org ... Relay For Life International The following countries hold Relay For Life events ref http www.relayforlife.org ... references External links http www.relayforlife.org Official Relay For Life Website http www.cancer.org docroot par content PAR 1 Relay For Life.asp American Cancer Society Relay For Life http www.relayforlife.org relay international Relay For Life International http www.cancer.org docroot ... http www.youtube.com acsrelayforlife Relay For Life Videos on YouTube http www.flickr.com groups relay for lifeRelay For Life Volunteer Photo Pool on Flickr http www.StockportRelayForLife.co.uk Stockport Relay For Life http www.cancer.ca relay Canadian Cancer Society Relay For Life http www.cancerresearchuk.org relay Cancer Research UK Relay For Life http www.relay4life.org.nz Team MOA New Zealand ... more details
life the number of times the relay can be expected to operate reliably. There is both a mechanical ... life expectancy. Control relaylife cycle varies from 50,000 to over one million cycles depending .... This contact degradation drastically limits the overall life of a relay to a range of about ... miniature relay, dust cover is taken off A relay is an electric ally operated switch . Many relays ... in telephone exchanges and early computers to perform logical operations. A type of relay ... relay s . Basic design and operation File Relay Parts.jpg thumb right Simple electromechanical relay. File Relay2.jpg thumb right Small cradle relay often used in electronics. The cradle term refers to the shape of the relay s armature. A simple electromagnetic relay consists of a coil of wire wrapped ... or more sets of contacts there are two in the relay pictured . The armature is hinged to the yoke ... spring so that when the relay is de energized there is an air gap in the magnetic circuit. In this condition, one of the two sets of contacts in the relay pictured is closed, and the other set is open. Other relays may have more or fewer sets of contacts depending on their function. The relay in the picture ... of contacts was closed when the relay was de energized, then the movement opens the contacts ... the relay case. Alternatively, a contact protection network consisting of a capacitor and resistor ... 09, 2011 ref A solid state relay uses a thyristor or other solid state switching device, activated by the control .... Types Latching relay File Latching relay bistable permanent magnet.jpg thumb Latching relay with permanent magnet A latching relay has two relaxed states bistable . These are also called impulse , keep , or stay relays. When the current is switched off, the relay remains in its last state. This is achieved ... turns the relay on and the second pulse turns it off. In the two coil example, a pulse to one coil turns the relay on and a pulse to the opposite coil turns the relay off. This type of relay has ... more details
Medley relay may refer to Swimming Medley swimming , mixed distance relay events Track and field Distance medley relay Sprint medley relay Swedish medley relay Disambig ... more details
Torch relay may refer to The carrying of the Olympic Torch Any of the Olympic torch relay s Pan American Torch , a torch relay associated with the Panamerican Games Asian Games Torch, a torch relay associated with the Asian Games disambig Category Torch relays ... more details
Image Relay 1.jpg thumb right 200px Illustration of Relay The Relay program consisted of Relay 1 and Relay 2, two early United States American satellite s. Both were primarily experimental communications satellite s funded by NASA and developed by RCA . ref name martin 2000 cite book last Martin first ... E2 80 9CCommunications Satellites E2 80 9D&printsec frontcover v onepage&q Relay 201&f false accessdate ... 2009 09 12 ref Relay 1 provided the first television transmissions across the Pacific Ocean. Relay 1 anchor Relay 1 redirect target and direct link from other articles Relay 1 was launched atop a Delta ... ntrs.nasa.gov archive nasa casi.ntrs.nasa.gov 19660000937 1966000937.pdf title Final Report on the Relay .... Relay 1 was the first satellite to broadcast television from the United States to Japan . The first ... titled Record, Life of the Late John F. Kennedy , the first television program broadcast simultaneously ... 19660000937 1966000937.pdf title Final Report on the Relay 1 Program year 1966 work NASA SP 93 publisher ... assassination, Relay 1 handled a total of 11 spot broadcasts eight to Europe and three to Japan ... name NASA SP 93 COSPAR satellite ID Relay 1 1962 Beta Upsilon 1 Relay 2 anchor Relay 2 redirect target and direct link from other articles Relay 2 was launched atop a Delta B rocket on January 21, 1964 from LC 17B at Cape Canaveral Air Force Station , and was physically similar to Relay 1. Design changes ... normally. COSPAR satellite ID Relay 2 1964 003A See also List of communications satellite firsts Launch data 1962 in spaceflight July December Relay 1 1964 in spaceflight January June Relay 2 State ... http nssdc.gsfc.nasa.gov nmc spacecraftDisplay.do?id 1962 068A Relay 1 http nssdc.gsfc.nasa.gov nmc spacecraftDisplay.do?id 1964 003A Relay 2 s File NASA FACTS PROJECT RELAY G 12 62 page 01.jpg NASA FACTS PROJECT RELAY G 12 62 Category 1963 in spaceflight Category NASA programs Category History ... de Relay Satellit nl Relay satelliet ... more details
relay is a complex electromechanical apparatus, often with more than one coil, designed to calculate .... Unlike switching type relay s with fixed and usually ill defined operating voltage thresholds and operating ..., operating and restraint coils, solenoid type operators, telephone relay contacts, and phase shifting .... The various protective functions available on a given relay are denoted by standard ANSI Device Numbers . For example, a relay including function 51 would be a timed overcurrent protective relay. File ... are nearly entirely replaced with microprocessor based digital protective relay s numerical ... cost over electromechanical relays. However, due to their very long life span, tens of thousands ... armature becomes much smaller when the relay has operated, the current required to maintain the relay closed is much smaller than the current to first operate it. The returning ratio or differential is the measure of how much the current must be reduced to reset the relay. A variant application of the attraction principle is the plunger type or solenoid operator. A reed relay is another example ... by the type of measurement they make. A protective relay may respond to the magnitude of a quantity such as voltage or current. Induction types of relay can respond to the product of two quantities in two ... relay calculating the ratio of two quantities is not practical, the same effect can be obtained .... ref name GEC97 Several operating coils can be used to provide bias to the relay, allowing the sensitivity ... and restraint torque can be produced in the relay. By use of a permanent magnetic in the magnetic circuit, a relay can be made to respond differently to current in one direction than in another. Such polarized ... type armature relays are triggered by the measuring relay. In a large installation of electromechanical ... when the relay operates, to display a distinctive colored signal when the relay has tripped. ref name GEC97 Types Overcurrent relay An overcurrent relay is a type of protective relay which operates ... more details
Unreferenced date May 2008 BITNET Bitnet Relay officially The Interchat Relay Network , also known simply as Relay was a precursor to today s Internet Relay Chat and various online chat systems. It was developed ... . Even before Relay was implemented, one could send an instant messaging instant message called MSG ... systems. Relay was a chat service running on a special id on several suitable hosts in the Bitnet. To use it, one would send a MSG to a userid called RELAY . The Relay program running on that userid ... could contain either a command for Relay prefixed by the ever since popular slash character command ... harper. Now use the SIGNON nickname command to establish a nickname and to logon Relay. SIGNON rob Welcome to the Interchat Relay Network, Rob. Your host is RELAY FINHUTC Finland . Your last logon was at 08 39 23 on 03 17 89. There are 67 users on 27 relays. HELP Relay Commands Bye . . . . . . . . . . . . Signoff from Relay Channel num . . . . .Change to channel num COntact host nick . .Show Relay contact info Getop . . . . . Try to summon a Relay operator Help. . . . . . . . . . . . . Prints this list INFo. . . . . . . . . . . Send RELAY INFO file Invite nick . . .Invite user to your channel ... relays serving node Signon nick channel . . . .Signon to Relay Signon nick ,SHIFT . . Forces uppercase shift Signon nick ,UNSHIFT . Forces lowercase shift Signoff . . . . . . . . . . Signoff from Relay SIGNUP full name . Signup or change full name STats . . . . . . . . Display Relay statistics SUmmon userid node . . Invite user to Relay Topic subject . . . . Topic for your channel Who channel . . . . Show users and nicknames WHOIs nick . . . . . . . .Identify a nickname LINKS RELAY Version 01.24x0 Host RELAY FINHUTC Finland RelayRELAY CEARN Geneva Finland RelayRELAY DEARN Germany Geneva RelayRELAY AEARN Austria Germany RelayRELAY CZHRZU1A Zurich Geneva RelayRELAY HEARN Holland Geneva RelayRELAY TAUNIVM TAUrelay Geneva RelayRELAY EB0UB011 Barcelona Geneva RelayRELAY ORION New Jersey ... more details
Wiktionarypar relay A relay is an electronic component a form of switch. Relay may also refer to relay, a station in a message forwarding system, especially for the changing of horses by courier s Relay satellite , a communications satellite Relay shop , a French convenience store Relay league , a chain of message forwarding stations cursus publicus courier service in the Roman Empire Mail relay, a server used for delivering e mail , usually by SMTP see also open mail relay Microwave radio relay , technology for message forwarding A repeater , a device that re transmits signals A medium altitude satellite operating as a repeater Citro n Relay , a marketing version of the Citro n Jumper van Saturn Relay , a minivan produced from 2005 07 by Saturn Corporation Relay race Telecommunications Relay Service , a telephone accessibility service for the Deaf Bitnet Relay , an online chat system on the BITNET Relay Directory Manager , an AJAX application Relay , a song by The Who Compare Relayer , a Yes album disambig cs Rel de Relais Begriffskl rung fr Relais io Relayo homonimo nl Relay ja no Rel andre betydninger ... more details
File Hall Gare d Arles.JPG thumb 300px Relay shop in the Gare d Arles . Relay is a chain of newspaper, magazine, book, and convenience stores, mostly based in train stations and airports. It is owned by Lagard re Services, a subsidiary of Lagard re Group . Its heaviest concentration is in France , but it also operates in other countries. In 2010, the network had 1,100 shops on 4 continents. ref http www.relay.fr relay tout savoir sur relay Tout savoir sur Relay fr icon ref References reflist External links commons Category Relay shop Relay shop http www.relay.fr www.relay.fr Category Companies of France France stub retail company stub fr Relay ... more details
Radio station s that cannot communicate directly due to distance, terrain or other difficulties sometimes use an intermediate radio relay station to relay the signals. Examples include airborne radio relay , microwave radio relay , and communications satellite . The American Radio Relay League was founded for this purpose but did not change its name when this became a less important part of its work. See also repeater . Category Radio ... more details
Context date October 2009 A Relay attack is a type of attack related to Man in the middle attack man in the middle and Replay attack replay attacks, in which an attacker relays verbatim a message from the sender to a valid receiver of the message. The sender may or may not be aware of even sending the message to the attacker if the sender is aware, it is likely under the impression that the attacker is the intended receiver of the message. Relay attacks are forecast to get more and more common with the increasing number of contactless RLC and Radio frequency devices. Citation needed date May 2007 Example attack A typical relay attack is when a Hacker computer security hacker follows a car owner with a relay that forwards the frequency of the alarm s remote control to the car, waiting for the car owner to accidentally press the open button during his jogging, if pressing a button is necessary for security reasons, it should be necessary, but for convenience of the owner and the hacker, it is often not necessary . External links http www.rfidblog.org.uk research.html relay2009 Academic Survey on Relay Attacks http www.rfidblog.org.uk research.html relay Detailed Practical Example of Relay Attack on RFID system http www.libnfc.org documentation examples relayRelay Attack Demonstration http eprint.iacr.org 2011 618 Practical Relay Attack on Contactless Transactions by Using NFC Mobile Phones Category Hacking computer security Category Computer security exploits fr Attaque par relais ... more details
Orphan date February 2009 Unreferenced date March 2007 The conventional relay type of electromagnet relay s can be replaced by static relays which essentially consist of electronic circuitry to develop all those characteristics which are achieved by moving parts in an electro magnetic relay. For example, in an induction type relay, the operating time can be adjusted by adjusting the distance travelled by the disc whereas in a static relay it can be achieved by adjusting the value of the resistance in the R C time delay circuit. In other words static relays are capable of performing the same functions with the use of electronic circuit control as an electro magnetic relay performs with the use of moving parts or elements. Static relays are superior to electro magnetic relays in the following aspects The moving parts and the contacts are largely eliminated. The only moving element in a static relay is the final tripping contact. C.T.s and P.T.s employed are of lesser VA rating as static relays require a very little volt ampere for their operation. More precise and high speed operation. Structure Static relay consists of following units for operation Auxiliary Voltage Supply 24 V Direct current DC supply is required for energizing the circuitry of the static relay. This is obtained by converting 230 V AC to 24 V DC and in some cases station battery voltage of 110 V to 24 V DC. Comprator It compares the actual quantity with the pre set quantity. For example in an over current relay it will compare the actual current supplied by CT with the pre determined set current over which tripping is required. Time delay Elements The required operation time is achieved ... of relays are set and relay can only be operated when these conditions are satisfied. Output Device The actual tripping of relay can be achieved by firing the SCR or operating the attracted armature type relay by feeding the signal coming from logic circuit output. See also Solid state relay ... more details
Unreferenced date October 2006 Orphan date February 2009 The Sorteberg relay , or Sorteberg force bridge pneumatic relay is a form of Analog computer analog pneumatic computer , calibrated to calculate a predefined function. They were sold by Sorteberg Controls Corp. It consists of a series of bellows, joined by a beam. The balance of forces between the bellows across the beam is responsible for performing the computation. The end of the beam often controls a flapper nozzle, which itself provides a varying pressure input to a pneumatic relay. This output can then be directed to other components. The Sorteberg relay has seen use in process control in oil refinery oil refineries and numerous other facilities. DEFAULTSORT Sorteberg Relay Category Control devices ... more details
Image Reedrelay.jpg thumb right 258px Reed relay and reed switches A reed relay is a type of relay that uses an electromagnet to control one or more reed switch es. The contacts are of magnetic material and the electromagnet acts directly on them without requiring an armature to move them. Sealed in a long, narrow glass tube, the contacts are protected from corrosion , and are usually plated with silver , which has very low resistivity but is prone to corrosion when exposed, rather than corrosion resistant but more resistive gold as used in the exposed contacts of high quality relays. Multiple reed switches can be inserted into a single bobbin and actuate simultaneously. Reed switches have been manufactured since the 1930s. As the moving parts are small and lightweight, reed relays can switch much faster than relays with armatures http www.kpsec.freeuk.com components relay.htm . They are mechanically simple, making for reliability and long life. Memory device A few million reed relays were used from the 1930s to the 1960s for memory functions in Bell System electromechanical telephone exchange s. Often a multiple reed relay was used, with one of the reeds latching the relay, and the other or others performing logic or memory functions. Most reed relays in the crossbar switch ing systems of the 1940s through the 1970s were packaged in groups of five. Such a reed pack was able to store one decimal digit, encoded in a two out of five code 74210 variant for easy validity checking by wire spring relay logic. Crosspoint switch In the Bell System Stored Program Control exchange systems ... Remanence remanent alloy, so the relay could latch magnetically instead of latching electrically ... and electronic instrumentation due to their hermetic seal , fast operate time, extended life to 10 ... SpecSearch Suppliers Electrical Electronic Components Relays Relay Accessories Reed Relays?SrchItem 1&frmqry reed 20relays&kqid 210561605 List of over 50 reed relay manufacturers Category Relay switches ... more details
Unreferenced date June 2008 Expert subject Telecommunications date February 2009 Frame Relay is a standardized ... of many other network interfaces. Network providers commonly implement Frame Relay for voice VoFR ... over a wide area network WAN . Each end user gets a private line or leased line to a Frame Relay Node networking node . The Frame Relay network handles the transmission over a frequently changing path transparent to all end users. Frame Relay has become one of the most extensively used WAN protocols ... of configuring user equipment in a Frame Relay network offers another reason for Frame Relay ... Line DSL , the end may loom for the Frame Relay protocol and encapsulation. Fact date January 2009 ... type of non dial up connection remains a 64 kbit s frame relay line. Thus a retail chain, for instance, may use Frame Relay for connecting rural stores into their corporate WAN. Technical description Image Frame relay.jpg right thumb 350px A basic Frame Relay network The designers of Frame Relay ... Relay puts data in variable size units called frames and leaves any necessary error correction error ... quality prioritizing some frames and making others less important. Frame Relay can run on fractional Digital Signal 1 T 1 or full T carrier system carriers. Frame Relay complements and provides a mid ... Mode ATM , which operates in somewhat similar fashion to Frame Relay but at speeds from 155.520 Mbit s to 622.080 Mbit s. Source http searchenterprisewan.techtarget.com definition frame relay Frame Relay has its technical base in the older X.25 X.25 packet switching technology, designed for transmitting ... Relay offers a fast packet switching fast packet technology , which means that the protocol does not attempt to correct errors. When a Frame Relay network detects an error in a frame, it simply drops ... networks. Frame Relay often serves to connect local area network s LANs with major backbone network ... period. Frame Relay does not provide an ideal path for voice or video transmission, both ... more details
In information theory , a relay Channel communications channel is a probability model of the communication between a Communication source sender and a receiver aided by one or more intermediate relay nodes ... channel from sender and relays to receiver . General discrete time memoryless relay channel A discrete memoryless single relay channel can be modelled as four finite sets, math X 1, X 2, Y 1, math .... The probability distribution of the choice of symbols selected by the encoder and the relay encoder is represented by math p x 1,x 2 math . pre nowiki o o Relay Encoder o o A y1 x2 V o o x1 o o y ... in the pioneer article by Cover and El Gamal. Decode and Forward DF In this relaying scheme, the relay ... , I left x 1, x 2 y right right math . Compress and Forward CF In this relaying scheme, the relay quantizes ... and Forward AF In this relaying scheme, the relay sends an amplified version of the received signal in the last time slot. Comparing with DF and CF, AF requires much less delay as the relay node operates ... operation is performed at the relay side. Cut set upper bound The first upper bound on the Channel capacity capacity of the relay channel is derived in the pioneer article by Cover and El Gamal and is known ... 1, y x 2 right , I left x 1, x 2 y right right math where C is the capacity of the relay channel. The first ... bound, respectively. Degraded relay channel A relay channel is said to be degraded if y depends on math ... 1 math . In the article by Cover and El Gamal it is shown that the capacity of the degraded relay channel ... to the Cut set upper bound. Reversely degraded relay channel A relay channel is said to be reversely ... that the Direct Transmission Lower Bound wherein relay is not used is tight when the relay channel is reversely degraded. Feedback relay channel Empty section date July 2010 Relay without delay channel ... cover papers transIT 0572cove.pdf Capacity theorems for the relay channel , IEEE Transactions on Information ... on the Relay Channel and Cooperative Communications are available at http students.itsoc.org Cooperation ... more details
Unreferenced date August 2008 About relay races in sport relay races in electronic circuits and in ladder logic race condition File Gold Relay UK WOC 2008 crop.jpg thumb World Orienteering Championship 2008 gold medal winners in relay, completing hand off between legs 2 and 3 During a relay race , members ... action. Relay races take the form of professional races and amateur games. In the Olympic games , there are several types of relay races that are part of track and field . Swimming relays File Swimming relay exchange.jpg thumb right Swimmers about to make the exchange during a relay race. A swimming relay of four swimmers usually follows this strategy second fastest, third fastest, slowest, then fastest ... In athletics sport athletics , the two standard relays are the 4x100 meter relay and the 4x400 meter relay. Traditionally, the 4x400 meter relay finals are the last event of a track meet, and is often ... to measure exact splits in a 4x400 or a 4x100 relay. For example, if a team ran a 3 00 4x400, it does ... times. A 4x400 relay generally starts in lanes for the first leg, including the handoff. The second ... at the incoming runner and holding out a hand for the baton. File Relay race baton pass.jpg thumb right 180px Two runners prepare to exchange the baton. A team may be disqualified from a relay for Losing ... up a 4 person relay team is second fastest, third fastest, slowest, then fastest anchor . Each segment of the relay the distance run by one person is referred to as a leg. Competitions The largest relay event in the world is the Norwegian Holmenkollstafetten , which had a total of 33.880 competitors in 2011. Another large relay event is the Penn Relays , which attracts over 15,000 competitors ... of 100,000 spectators. It is credited with popularizing Relay Racing in the sport of Track & Field. The world s longest relay race is Japan s Prince Takamatsu Cup Nishinippon Round Ky sh Ekiden ... 1988.jpg thumb right Athletes in the Southern Counties 12 Stage Road Relay Championships, Wimbledon ... more details
Relay logic is a method of controlling industrial electronic circuits by using relays and contacts. Ladder logic main ladder logic The schematic diagrams for relay logic circuits are often called line diagrams, because the inputs and outputs are essentially drawn in a series of lines. A relay logic circuit is an electrical network consisting of lines, or rungs, in which each line or rung must have ..., such as input switch es and control relay s. The conditions that represent the inputs are connected in series, parallel, or series parallel to obtain the logic required to drive the output. The relay logic circuit forms an electrical schematic diagram for the control of input and output devices. Relay logic diagrams represent the physical interconnection of devices. The basic format for relay logic diagrams is as follows 1. The two vertical lines that connect all devices on the relay logic diagram .... Figure 1 shows a typical relay logic diagram. In this circuit, a STOP START station is used to control two pilot light s. When the START button is pressed, the control relay energizes and its associated ... switches OFF. Image Relay Logic2.jpg thumb center Relay logic design In many cases, it is possible to design a relay logic diagram directly from the narrative description of a control event sequence. In general, the following suggestions apply to designing a relay logic diagram 1. Define the process ... in sentences, or put them in table form. 4. Write the relay logic diagram from the sequence of operations. Applications A major application of relay logic is the control of routing and signalling on railways ... be selected and helps reduce accidents. Elevator s are another common application large relay logic ... thumb Figure 1 from Vernam s patent. Other kinds of relay logic Most relay logic diagrams are in ladder logic form. Systems using relay logic diagrams in other forms include the Gilbert Vernam ..., ISBN 0 0686860 3 6 DEFAULTSORT Relay Logic Category Electromagnetic components ca L gica cablejada ... more details
Orphan date February 2009 Unreferenced date February 2008 KYZ is a designation given to a relay used to create pulses for electrical metering applications. It is commonly a Form C relay. The term KYZ refers to the contact designations K for common, Y for Normally Open, and Z for Normally Closed. When incorporated into an electrical meter, the relay changes state with each rotation or half rotation of the meter disc. Each state change is called a pulse. When connected to external equipment, rate of use kW as well as total usage kWh can be determined from the rate and quantity of pulses. Category Relay switches electric power stub ... more details
unreferenced date June 2007 A relay league is a chain of message forwarding stations in a system of optical telegraph s, Telegraphy Radiotelegraphy radio telegraph stations, or riding courier History courier s. An interesting description of these early 19th century methods and its evolution into the electrical telegraph networks of the mid to late 19th century is found in The Victorian Internet , a book by Tom Standage ISBN 0425171698. Radio relay leagues Amateur radio Radio amateur s have been early in arranging relay leagues, as is reflected in the name of the organization of American Radio Relay League ARRL , http www.arrl.org . Radio amateur message relay operations were originally conducted using Morse code in the first two decades of the 20th century using spark gap transmitter s. As vacuum tube s became affordable operations shifted to more efficient manual telegraphy transmitters, referred to as CW Continuous wave . Messages were relayed station to station typically covering four or more re transmission cycles to cover the continental United States , in an organized system of amateur radio networks. After World War II , voice and radioteletype implementations of the message relay system were employed. See also Post rider Pony Express DEFAULTSORT Relay League Category Early telecommunications Category Telegraphy ... more details
In contract bridge , relay is a term for a convention bridge conventional bid that usually has little or no descriptive meaning but asks partner to describe some feature of his hand. A relay is often the cheapest bid available but need not be. Stayman and Blackwood are common examples of relay bids. The rationale for introducing relay bids emerged from the idea that it is not always cost effective i.e. the best use of bidding space for both partners to describe their hands. Instead, only one partner can make the cheapest bids available relays while the other describes his hand. This is especially useful when the asker has a balanced or very strong hand. Relay bidding system s are for the most part based on relay bids in most sequences especially forcing ones , one partner just relays while the other describes his hand in a highly codified manner. While relay systems offer a higher level of exchanged information than natural systems, they also have the drawbacks that they are complicated to memorize and often exclude the players judgment, particular in regard to honor location, which can be crucial on occasion. There is often confusion between puppet bids and relays. A puppet bid requests partner to make the cheapest bid regardless of his hand. A relay bid requests partner to make a descriptive bid in response. The descriptive response can be natural as in Stayman or coded as in Blackwood . A marionette bid is similar to a puppet bid except that it allows responses other than the cheapest bid with certain uncommon hand types. Thus technically it s a relay but with the cheapest bid expected most of the time. See the Glossary of contract bridge terms for more definitions. External links http www.bridgeguys.com Conventions RelayBids.html Relay systems on BridgeGuys http www.bridgeworld.com default.asp?d bridge glossary&f glossa.html The Bridge World glossary Category Bridge conventions WPCBIndex ... more details
In computer network computer networking , cell relay refers to a method of statistical multiplexing statistically multiplexing small fixed length packet information technology packets , called cells , to transport data between computers or kinds of network equipment. It is an Reliability computer networking unreliable , connection oriented packet switching packet switched data communications protocol . Cell relay transmission rate s usually are between 56 kbit s and several gigabits per second . Asynchronous Transfer Mode ATM , a particularly popular form of cell relay, is most commonly used for home Digital Subscriber Line DSL connections, which often runs between 128 kbit s and 1.544 Mbit s Digital Signal 1 DS1 , and for high speed backbone connections OC 3 and faster . Cell relay protocols ... Model . Cell relay can be used for delay and jitter sensitive traffic such as voice and video. Cell relay systems break variable length user packets into groups of fixed length cells, that add ... over many cells. Cell relay statems may also carry bitstream based data such as Plesiochronous ... and clock recovery shim. Thus cell relay systems may potentially carry any combination of stream ... relay is an implementation of Fast packet switching fast packet switching technology that is used in connection ... it, there can be indefinite transmissions over the same facility. Cell relay utilizes data cells ... to transmit compared to variable sized frames or packets. Cell relay is extremely reliable for transporting ... in a cell. An example of cell relay is ATM, a prevalent form utilized to transfer a cell with a fixed ... de paquets it Trasmissione di cella Minoli, Daniel, and Michael Vitella. ATM and Cell Relay .... Principles of Signaling for Cell Relay and Frame Relay. Boston Artech House, 1995. Print. Minoli, Daniel, and George Dobrowski. Principles of Signaling for Cell Relay and Frame Relay. Boston ... Networking ABCs for Managers ATM, BISDN, Cell frame Relay to SONET. New York John Wiley & Sons ... more details
STS Relay is the Speech To Speech Relay Service available to any telephone callers or callees with speech disability and to those who wish to Speech communication talk with them. Telephone STS Relay in the US STS Relay is available via 711 in the U.S. in a telephone call, first dial 711, then ask for STS. A trained communication assistant will ask you what number you want to call. The assistant will repeat what the caller with the speech disability is saying. The callee can then respond. The caller can then reply. The communication assistant will revoice the caller s message. The callee then responds in this three way assisted phone conversation. In other countries The service is available in Australia , and in some sections of Sweden , and in other nations on a trial basis. STS Relay on the PSTN public switch telephone network is available for those who need telephone call assistance because of a speech disability. History STS Relay first became available in the US in California , in 1997 the service became available nationally March 1, 2001 . On May 12, 2006, the University of Wisconsin Madison awarded Robert Z. Segalman, Ph.D UW 1972 , an honorary Doctor of Science for his work in creating Speech To Speech. External links http www.speechtospeech.org SpeechToSpeech.org http www.speechtrans.com Speechtrans.com e mail support DrSTS comcast.net this email address is intended for the use of those who need information on how to use Speech to Speech on the telephone in their daily lives Category Non governmental organizations ... more details
Image Buchholz 2.JPG thumb In the field of electric power distribution and transmission, a Buchholz relay is a safety device mounted on some oil filled power transformer s and reactance electronics reactors , equipped with an external overhead oil reservoir called a conservator . The Buchholz Relay is used as a protective device sensitive to the effects of dielectric failure inside the equipment. Depending on the model, the relay has multiple methods to detect a failing transformer. On a slow accumulation of gas, due perhaps to slight overload, gas produced by decomposition of transformer oil insulating oil accumulates in the top of the relay and forces the oil level down. A float switch in the relay is used to initiate an alarm signal. Depending on design, a second float may also serve to detect slow oil leaks. If an electric arc arc forms, gas accumulation is rapid, and oil flows rapidly into the conservator. This flow of oil operates a switch attached to a vane located in the path of the moving oil. This switch normally will operate a circuit breaker to isolate the apparatus before the fault causes additional damage. Buchholz relays have a test port to allow the accumulated gas to be withdrawn for testing. Flammable gas found in the relay indicates some internal fault such as overheating or arcing , whereas air found in the relay may only indicate low oil level or a leak. Buchholz relays have been applied to large power transformers at least since the 1940s. The relay was first developed by Max Buchholz 1875 1956 in 1921. ref http www.transformerworld.co.uk buchholz.htm Tutorial T5 ref Names like beechwood relay or beech relay are an indication of incorrectly translated ... http www.emb online.de pdf 01 02 08 02 20Prospekt 20Buchholzrelais 20ENGLISCH.pdf Buchholz relay technical ... Buchholz relay manufacturer P&B Weir Electrical PBSI Group Ltd, UK http www.pbsigroup.com DEFAULTSORT Buchholz Relay Category Safety switches Category Transformers electrical electric power stub cs Buchholzovo ... more details
A tape relay is a method of retransmitting teletypewriter traffic from one channel communications channel to another, in which messages arriving on an incoming channel are recorded in the form of perforated tape, this punched tape then being either fed directly and automatically into an outgoing channel, or manually transferred to an automatic transmitter for transmission telecommunications transmission on an outgoing channel. Tape relay, sometimes informally called torn tape operation was commonplace during much of the 20th century. References FS1037C MS188 See also Store and forward Category Data transmission ... more details
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