Orphan date February 2009 Image Amantadine.png thumb 100px Amantadine Image Hexamine.png thumb 100px Hexamine Image Memantine.svg thumb 100px Memantine Bridged compounds are compounds which contain interlocking rings. Examples include Adamantane Amantadine Biperiden Memantine Methenamine Rimantadine Norbornane Nomenclature The nomenclature of bridged compounds was established by the von Baeyer system . Some important concepts for bridged compounds are Bridgehead Any skeletal atom of the ring system which is bonded to three or more skeletal atoms excluding hydrogen . In consequence, the bridgeheads are always tertiary or quaternary carbons. For insaturations, Bredt s rule states that a double bond cannot be placed at the bridgehead of a bridged ring system, unless the rings are large enough. Bridge Unbranched chain of atoms or an atom or a valence bond connecting two bridgeheads. They may consist in carbon or heteroatoms. Excluding hydrogen Main ring Ring identified as the pattern structure. Main bridge Bridge which connects the two bridgeheads in pattern structure. Secondary bridge Any bridge not included in the main ring or the main bridge. See also Platonic hydrocarbon Fenestrane Propellane References http www.chem.qmul.ac.uk iupac vonBaeyer vb1t5.html pre Extension and Revision of the von Baeyer System for Naming Polycyclic Compounds Including Bicyclic Compounds . External links MeshName Bridged Compounds Rule A 31. Bridged hydrocarbons. Bicyclic Systems http www.acdlabs.com iupac nomenclature 79 r79 163.htm IUPAC Blue Book Rule A 32. Bridged Hydrocarbons. Polycyclic Systems http www.acdlabs.com iupac nomenclature 79 r79 164.htm IUPAC Blue Book Rule A 34. Hydrocarbon Bridges. Bridged Hydrocarbons http www.acdlabs.com iupac nomenclature 79 r79 166.htm IUPAC Blue Book Rule B 14. Bridged Heterocyclic Systems. Extension of the von Baeyer System. http www.acdlabs.com iupac nomenclature 79 r79 994.htm IUPAC Blue Book Category Organic compounds Organic compound stub nl ... more details
Black bridged leaf turtle may refer to Western black bridged leaf turtle Cyclemys atripons , an Asian leaf turtle found in Cambodia, Southeast Thailand, and Vietnam. Eastern black bridged leaf turtle Cyclemys pulchristiata , an Asian leaf turtle found in Eastern Cambodia and Vietnam. See also Asian leaf turtles , turtles belonging to the genus Cyclemys . disambig ... more details
Information Description Network, Bode bridged T filter, part of a series showing impedance transformations. This file belongs with File Network, T filter from bridge T.svg . Source Self created using Inkscape Date 8th August 2009 Author User Spinningspark font style background FFF090 color 00C000 Sp font style background FFF0A0 color 80C000 in font style color C08000 ni font font font style color C00000 ng font font font style color 2820F0 Spark font other versions Licensing cc by sa 3.0 Courtesy Spinningspark at Wikipedia KeepLocal ... more details
musk turtles, narrow bridged musk turtles generally only grow to about 6.5 inches 16.5 cm in length. Behavior Like all musk turtles, narrow bridged musk turtles are almost entirely aquatic ... more details
identically. Bridged amplifier Image Bridge amp.GIF thumb 200px Representative schematic of a bridged ... available increases by a factor of four. This would be true if the amplifier in bridged mode were used ... of the loudspeaker in bridged mode should be double the minimum impedance rated for stereo mode. Paralleled ... A bridge parallel amplifier configuration uses a combination of the bridged and paralleled amplifier .... From the preceding sections, it can be seen that a bridged configuration doubles the dissipation ... Bridged And Paralleled Amplifiers Category Electronic amplifiers ... more details
image Bridged T delay equaliser.svg thumb The bridged T delay equaliser is an electrical all pass filter circuit utilising Electronic filter topology Bridged T topologies bridged T topology whose purpose is to insert an, ideally, constant delay at all frequencies in the signal path. It is a class of image filter . Applications The network is used when it is required that two or more signals are matched to each other on some form of timing criterion. Delay is added to all other signals so that the total delay is matched to the signal which already has the longest delay. In television broadcasting, for instance, it is desirable that the timing of the television waveform synchronisation pulses from different sources are aligned as they reach studio control rooms or network switching centres. This ensures that cuts between sources do not result in disruption at the receivers. Another application occurs when stereophonic sound is connected by landline, for instance from an outside broadcast to the studio centre. It is important that delay is equalised between the two stereo channels as a difference will destroy the stereo imaging stereo image . When the landlines are long and the two channels arrive by substantially different routes it can require many filter sections to fully equalise the delay. Operation The operation is best explained in terms of the phase shift the network introduces. At low frequencies L is low impedance and C is high impedance and consequently the signal passes through the network with no shift in phase. As the frequency increases, the phase shift gradually increases, until at some frequency, sub 0 sub , the shunt branch of the circuit, L C , goes in to resonance and causes the centre tap of L to be short circuited to ground. Transformer action between the two halves of L, which had been steadily becoming more significant as the frequency increased, now becomes dominant. The winding of the coil is such that the secondary winding produces an inverted ... more details
Taxobox name Western black bridged leaf turtle status NE status system iucn2.3 image regnum Animal ia phylum Chordata classis Reptilia ordo Testudines familia Geoemydidae genus Cyclemys species C. atripons binomial Cyclemys atripons binomial authority Iverson & McCold, 1997 synonyms Cyclemys atripons atripons small Vetter in Vetter & Van Dijk, 2006 small ref name fritzhavas citation last1 Fritz first1 Uwe last2 Hava first2 Peter year 2007 title Checklist of Chelonians of the World issn 186405755 publisher At the request of the CITES Nomenclature Committee and the German Agency for Nature Conservation and funded by the Museum f r Tierkunde Dresden and the German Federal Ministry of Environment url http www.cnah.org pdf files 851.pdf accessdate March 27, 2011 ref range map Cyclemys atripons distribution map.png range map width 220px range map caption Cyclemys atripons range map. Cyclemys atripons , commonly known as the Western black bridged leaf turtle , is a species of Cyclemys Asian leaf turtle found in Southern Indochina . ref name checklist Turtle taxonomy Working Group Rhodin, A.G.J., van Dijk, P.P, Iverson, J.B., and Shaffer, H.B. .2010. http www.webcitation.org 5uzfktoIh Turtles of the world, 2010 update annotated checklist of taxonomy, synonymy, distribution, and conservation status . In Rhodin, A.G.J., Pritchard, P.C.H., van Dijk, P.P., Saumure, R.A., Buhlmann, K.A., Iverson, J.B., and Mittermeier, R.A. Eds. . Conservation Biology of Freshwater Turtles and Tortoises A Compilation Project of the IUCN SSC Tortoise and Freshwater Turtle Specialist Group. Chelonian Research Monographs No. 5. pp. 000.85 000.164, doi 10.3854 crm.5.000.checklist.v3.2010 ref Description Carapace is reddish brown, ovoid to elongated, with or without fine radiating black patterns. Plastron .... atripons is morphologically almost indistinguishable from Eastern black bridged leaf turtle C. pulchristiata , the Eastern black bridged leaf turtle. ref name div Fritz, U., Guicking, D., Auer, M., Sommer ... more details
Taxobox name Eastern black bridged leaf turtle status NE status system iucn2.3 image regnum Animal ia phylum Chordata classis Reptilia ordo Testudines familia Geoemydidae genus Cyclemys species C. pulchristiata binomial Cyclemys pulchristiata binomial authority Iverson & McCold, 1997 synonyms Cyclemys atripons pulchristiata small Vetter in Vetter & Van Dijk, 2006 small ref name fritzhavas citation last1 Fritz first1 Uwe last2 Hava first2 Peter year 2007 title Checklist of Chelonians of the World issn 186405755 publisher At the request of the CITES Nomenclature Committee and the German Agency for Nature Conservation and funded by the Museum f r Tierkunde Dresden and the German Federal Ministry of Environment url http www.cnah.org pdf files 851.pdf accessdate March 27, 2011 ref range map Cyclemys pulchristiata distribution map.png range map width 220px range map caption Cyclemys pulchristiata range map. Cyclemys pulchristiata , commonly known as the Eastern black bridged leaf turtle , is a species of Cyclemys Asian leaf turtle found in Southern Indochina . ref name checklist Turtle taxonomy Working Group Rhodin, A.G.J., van Dijk, P.P, Iverson, J.B., and Shaffer, H.B. .2010. http www.webcitation.org 5uzfktoIh Turtles of the world, 2010 update annotated checklist of taxonomy, synonymy, distribution, and conservation status . In Rhodin, A.G.J., Pritchard, P.C.H., van Dijk, P.P., Saumure, R.A., Buhlmann, K.A., Iverson, J.B., and Mittermeier, R.A. Eds. . Conservation Biology of Freshwater Turtles and Tortoises A Compilation Project of the IUCN SSC Tortoise and Freshwater Turtle Specialist Group. Chelonian Research Monographs No. 5. pp. 000.85 000.164, doi 10.3854 crm.5.000.checklist.v3.2010 ref Description Carapace is reddish brown, ovoid to elongated, with wide radiating black lines or large black specks. Plastron is mostly yellow and may have short fat lines, specks, or be uniformly ... or entirely black. It is mostly morphologically indistinguishable from the Western black bridged ... more details
Information Description Bridge T delay equaliser circuit Source Self created using Inkscape Date 31st December 2008 Author User Spinningspark font style background FFF090 color 00C000 Sp font style background FFF0A0 color 80C000 in font style color C08000 ni font font font style color C00000 ng font font font style color 2820F0 Spark font real life identity SHA 1 commitment ba62ca25da3fee2f8f36c101994f571c151abee7 other versions Licensing self cc by sa 3.0 KeepLocal OnCommons 1 ... more details
Information Description Effective on frequency response of bridging mechanical resonators in a mechanical filter. Source Self created using Inkscape Date 20th November 2009 Author User Spinningspark font style background FFF090 color 00C000 Sp font style background FFF0A0 color 80C000 in font style color C08000 ni font font font style color C00000 ng font font font style color 2820F0 Spark font other versions Licensing cc by sa 3.0 Courtesy Spinningspark at Wikipedia KeepLocal ... more details
Spanning tree can refer to Spanning tree mathematics , a tree which contains every vertex of a more general graph Spanning tree protocol , a protocol for finding spanning trees in bridged networks disambig it Spanning tree ... more details
Unreferenced stub auto yes date December 2009 Terengganu River is a river in Terengganu , Malaysia . It flows through the state capital of Terengganu, Kuala Terengganu , and flows into the South China Sea . It is bridged by the Sultan Mahmud Bridge in Kuala Terengganu. Coord missing Malaysia Category Rivers of Terengganu Terengganu geo stub ... more details
Kushalgarh is a village in the Kohat District of Khyber Pakhtunkhwa . It is the point at which the Indus River was bridged to permit the extension of the railway from Rawalpindi to the Miranzai and Kurram valleys. 1911 coord missing Pakistan Category Populated places in Kohat District NorthWestFrontier geo stub ... more details
supersededSVG Zobel Balanced Bridged T Filter.svg Vector version available Zobel 14 Balanced Bridge T.svg Summary Information Description Zobel balanced bridged T high pass full section Source self made using MS Draw Date 23rd March 2008 Location Author User Spinningspark font style background FFF090 color 00C000 Sp font style background FFF0A0 color 80C000 in font style color C08000 ni font font font style color C00000 ng font font font style color 2820F0 Spark font real life identity SHA 1 commitment ba62ca25da3fee2f8f36c101994f571c151abee7 other versions Licensing self cc by sa 3.0 KeepLocal ... more details
Information Description Network, Bode bridged T filter, part of a series showing impedance transformations. This file belongs with File Network, bridged T filter.svg . Source Self created using Inkscape Date 8th August 2009 Author User Spinningspark font style background FFF090 color 00C000 Sp font style background FFF0A0 color 80C000 in font style color C08000 ni font font font style color C00000 ng font font font style color 2820F0 Spark font other versions Licensing cc by sa 3.0 Courtesy Spinningspark at Wikipedia KeepLocal ... more details
Green dye gallery Bridged arenes Where two of the aryl groups are bridged by a heteroatom, these triarylmethane compounds may be further categorized into acridine s nitrogen bridged , xanthene s oxygen bridged , and thioxanthene s sulfur bridged . References commonscat reflist Category Triarylmethane ... more details
A Chinese lantern can refer to the following A collapsible paper lantern or sky lantern in bright colours used for decorative purposes, commonly painted with Chinese art and calligraphy motifs. The shrub Abutilon x hybridum The shrub or small tree Dichrostachys cinerea The herbaceous plant Physalis alkekengi The Chinese lantern structure , a molecule containing two metal centers bridged by four bidentate ligands. disambig ... more details
Refimprove date September 2007 Bridged tap or bridge tap is a long used method of cabling for telephone lines. One cable pair of wires will appear in several different terminal locations poles or pedestal s . This allows the telephone company to use or provisioning assign that pair to any subscriber near those terminal locations. Once that customer disconnects, that pair becomes usable at any of the terminals. In the days of party line telephony party line s, 2, 4, 6, or 8 users were commonly connected on the same pair which appeared at several different locations. A bridge tap has no hybrid coil or other impedance matching components, just a T or branch in the cable. Thus the bridge presents an impedance mismatch . The unused branch of the T is usually left with no device connected to its end, thus has no electrical termination . Both the tap and its unterminated branch cause unwanted signal reflection s, also called echoes. Digital subscriber line s DSL can be affected by a bridged tap, depending on where the tap is bridged. DSL signals reflect from the discontinuities, sending the signal back through the cable pair, much like a tennis ball against a brick wall. The echoed signal is now out of phase and mixed with the original, creating, among other impairments, attenuation distortion . The modem receives both signals, gets confused and takes errors or cannot Synchronization sync . If the bridged tap is long, the signal bounces back only in very attenuation attenuated form. Therefore, the modem will ignore the weaker signal and show no problem. A bridge tap can also be referred to as a multiple or a telephone pair in multiple . ref Newton s Telecom Dictionary 23rd Edition 2003, Newton, Harry p110 ref Newton s Telecom Dictionary, 23rd Edition 2003 Newton, Harry p110 See also Telephone Loading coil References Reflist External links http www.vonl.com support faq loadcoils.cfm An Introduction to Load Coils and Bridge Taps Category Local loop Category Signal cables ... more details
Musk turtle is the common name given to three genus genera of aquatic turtle s Sternotherus , the musk turtles proper, Staurotypus , variously called Mexican, three keeled or giant musk turtles, and. Claudius angustatus Claudius , the narrow bridged musk turtle. Disambig Musk turtles can grow to aprox 4 They can live to around 30 50 years. Males have longer and thicker tails than females. Females have a larger head. ... more details
Star is a hamlet place hamlet in the north of the Wales Welsh county of Pembrokeshire . It is located south of Bwlch y Groes in the valley of the Afon Cneifa where the river is bridged. External links oscoor gbx SN245350 coord 51.98566 N 4.55715 W region GB source enwiki osgb36 SN245350 display title Note WGS84 lat long, converted from OSGB36 grid ref Category Villages in Pembrokeshire Pembrokeshire geo stub cy Star, Sir Benfro ... more details
Summary Information Description The Barren River, bridged by Kentucky Route 3225 KY 3225 near downtown Bowling Green, Kentucky Bowling Green, KY Source self made Date 5 20 2008 Author User OPMaster OPMaster User talk OPMaster talk other versions Licensing self cc by sa 3.0 GFDL Copy to Wikimedia Commons bot Fbot priority true ... more details
File Copper II acetate 3D balls.png thumb The Chinese lantern structure adopted by copper II acetate dihydrate In chemistry, the Chinese lantern structure is a coordination complex where two metal atoms are bridged by four Denticity bidentate ligand s. An example is copper II acetate dihydrate. The name reflects a resemblance between ball and stick model s of the structure and a Chinese paper lantern . See also Dirhodium tetraacetate Category Coordination chemistry chem stub ... more details
A bridge tied load BTL , also known as bridged transformerless and bridged mono , is an output configuration for audio amplifier s, a form of impedance bridging used mainly in professional audio applications. ref cite book url http books.google.com books?id K1t0GxyvVbMC&pg PA87 page 87 title Guide to Sound Systems for Worship last Eiche first Jon F. publisher Hal Leonard Corporation year 1990 isbn 079350029X series Recording and Audio Technology ref The two channels of a stereo amplifier are fed the same monaural audio signal , with one channel s electrical polarity reversed. A loudspeaker is connected between the two amplifier outputs, bridging the output terminals. This can double the voltage swing at the load as compared with the same amplifier used without bridging. The configuration is most often used for subwoofer s. ref cite web url http www.directproaudio.com shop amplifiers guide modes.cfm title Stereo, Parallel, and Bridge Mono work Amp Guide publisher DirectProAudio accessdate September 28, 2011 ref Power output Because the available voltage swing across the load is doubled for the same power supply voltage, bridged output theoretically enables the design of an amplifier producing four times the power output on the same supply voltage, since. math P frac U 2 R math . However, operating a pair of existing amplifier channels in bridge mode only doubles or triples power output to the load, since the amplifier retains its existing current rating. ref name Bartlett cite web url http www.prosoundweb.com article print amplifier power master class not all ratings are similar ... connected to a bridged amplifier that was capable of driving four ohms per channel. ref cite web ... identical amplifier is required for stereo operation. For bridged amplifiers, damping factor ... for minimum resistance. Because the amplifier s bridged output is floating, it should never ... applications. See also Amplifier Bridged and paralleled amplifiers Electronic amplifier Single ended ... more details
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