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Topic: Z-drive

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Precision Motor Controller Designed for all turntables using an AC drive motor, the Walker Precision Isolated Power Motor Drive stabilizes the electrical power that your turntable receives and precisely controls the speed. The speed, either 33 1/3 or 45 rpms, is selected by a switch on the front of the motor drive. With the Precision Isolated Power Motor Drive in your analog system, you will immediately notice a larger, stable, transparent sound stage, with faster dynamics and better harmonics, without grain or glare. www.walkeraudio.com /precision_motor_drive.htm

InsightCentral.net - Encyclopedia - Honda Insight MDM It is the Motor Drive Module or MDM which makes this possible. Accurate position information is important because each phase of the 3-phase current must be switched on at the correct time to ensure proper motor operation. The Voltage Converter Module (also part of the MDM) receives commands from the Motor Control Module, and switches the IGBT's appropriately to meet system demands. www.insightcentral.net /encyclopedia/enmdm.html

Caterpillar - Wikipedia, the free encyclopedia Caterpillars have six true legs (being hexapods) on the thorax, up to four pairs of prolegs on the middle segments of the abdomen, and sometimes a single pair of prolegs on the last abdominal segment. A caterpillar is the larval form of a lepidopteran (a member of the insect order comprising butterflies and moths). Many species of birds and animals consider caterpillars to be a tasty protein snack, so the caterpillars have evolved several methods of protecting and/or camouflaging themselves. en.wikipedia.org /wiki/Caterpillar

Tape drive - Wikipedia, the free encyclopedia In the 1980s some forms of tape drives were used as inexpensive alternatives to disk drives, examples include the ZX Microdrive and Rotronics Wafadrive. A tape drive, also known as a streamer, is a peripheral device that reads and writes data stored on a magnetic tape or a punched tape. Tape drives are sequential-access, and must wind past all preceding data to read any one particular piece of data. en.wikipedia.org /wiki/Tape_drive   (287 words)

SuperDisk - Wikipedia, the free encyclopedia SuperDisk's main claim to fame was that in addition to being able to read and write its native 120 MB (later 240 MB) disks, the drives could read and write the 1.44 MB floppy format (MFM) that was still popular at the time. A SuperDisk drive was used in a Panasonic digital camera, the PV-SD4090, which allowed it to use both SuperDisk (LS120) and 3.5" floppy disks as the memory media. SuperDisk should not be confused with SuperDrive, which is a trademark used by Apple Computer for various disk drive products. en.wikipedia.org /wiki/SuperDisk_drive   (583 words)

Quill - Wikipedia, the free encyclopedia Quills were used as instruments for writing with ink before the metal dip pen, the fountain pen, and eventually the ball point pen came into use. A quill pen is made from a flight feather (preferably a primary) of a large bird, most often a goose. The hand-cut goose quill is still a superior calligraphy tool, providing a sharp stroke and flexibility unmatched in steel pens. en.wikipedia.org /wiki/Quill   (583 words)

Phase-change Dual - Wikipedia, the free encyclopedia PD discs are compatible with PD drives, first generation Panasonic DVD-RAM drives and Multi CD-R recorders while PD drives can read and write PD discs as well as read CD-ROMs. Much like CD-RW, PD uses a phase change layer that can be overwritten in a single pass of the read/write head. A PD disc has a capacity of 650 MB, can be rewritten 500,000 times and is enclosed in a protective cartridge. en.wikipedia.org /wiki/PD_drive   (583 words)

Project Orion - Wikipedia, the free encyclopedia An Orion nuclear pulse drive starship powered by matter-antimatter pulse units would be theoretically capable of obtaining a velocity of from 50% to 80% of the speed of light. Some Orion nuclear pulse rockets using megaton range nuclear fusion type pulse units are capable of accelerating a spacecraft with a mass of millions of metric tons to velocities as high as 10% of the speed of light in space flight. Orion is the ideal method of propelling a multi-generational starship such as an interstellar ark to the stars at velocities of up to 10% of the velocity of light. en.wikipedia.org /wiki/Project_Orion   (3496 words)

Geneva drive - Wikipedia, the free encyclopedia Geneva wheels having the form of the driven wheel were also used in mechanical watches, but not in a drive, but rather to limit the tension of the spring, such that it would operate only in the range where its elastic force is nearly linear. The angle by which the drive wheel has to rotate to effect one step rotation of the driven wheel is always smaller than 180° in an external Geneva drive and always greater than 180° in an internal one, where the switch time is therefore greater than the time the driven wheel stands still. In watches, the "drive" wheel is the one that winds up the spring, and the Geneva wheel with four or five spokes and one closed slot prevents overwinding (and also complete unwinding) of the spring. en.wikipedia.org /wiki/Geneva_drive   (590 words)

Dragon Drive - Wikipedia, the free encyclopedia Dragon Drive, the name shared by both the anime as well as the manga by Ken-ichi Sakura, is a sci-fi/action-based adventure that was released in 2002 in Japan. He has been trained to fight in Dragon Drive ever since he was little, proving to be a very powerful elite and the strongest of his team. There, the elder of the village explains that RION, the group behind Dragon Drive, is trying to obtain the dragonite by training kids on Earth as their soldiers with the Dragon Drive program. en.wikipedia.org /wiki/Dragon_Drive   (2311 words)

Dean drive - Wikipedia, the free encyclopedia As of 1999, Dean's son, Norma Robert "Bob" Dean, appeared at one anti-gravity conference by invitation of a group of patent holders who had created differing versions of the reactionless drives, and refered to NL Dean in their patents, He gave a presentation about his father's device. Campbell and Dean claimed that Newton's laws of motion were only an approximation, and that Dean had discovered a fourth law of motion, a nonlinear correction to one of Newton's laws, which, if correct, would have made the Dean drive feasible. Dean fought the government for return of his device, when he discovered outside government contrators had started using his device in the public domain, without his consent He was repeatedly threatend, as well as warned by the Navy that he would "dissapear" should he continue the fight. en.wikipedia.org /wiki/Dean_drive   (1251 words)

Chivington Drive - Wikipedia, the free encyclopedia Chivington Drive refers to a street name in Longmont, Colorado which became the center of attention and controversy due to its connection to Colonel John Chivington who was responsible for the Sand Creek Massacre of 1864. en.wikipedia.org /wiki/Chivington_Drive   (1251 words)

Encyclopedia: Sussex Drive Sussex is a very famous street in Ottawa, as it is home to the Prime Minister 's residence at 24 Sussex Drive. Sussex Drive is a major street in Ottawa, Ontario, Canada. Also located on Sussex are a number of embassies such as those of France and the United States, Major's Hill Park, the National Gallery of Canada, the Canadian War Museum, the Royal Canadian Mint, Rideau Falls Park, one of the first National Research Council of Canada buildings, and Foreign Affairs Canada. www.nationmaster.com /encyclopedia/Sussex-Drive   (1251 words)

USB Flash Drives and Portable Storage for Computers USB flash drives are compact and easy-to-use devices that are similar in use to your computer hard drive. USB flash drives slip into your pocket, conveniently around your neck or on a keychain for ultimate portable storage. USB flash drives finally fulfill the real promise of the digital age: complete freedom and mobility. www.usbflashdrive.org   (1251 words)

Commercial Drives Commercial driveways shall be paved from the edge of the new pavement to a point where the grade of the new driveway intersects the grade of the existing driveway, or on relocated driveways to a point where the geometric limits of the new driveway meets the existing driveway. Commercial driveways having an existing hard surface will be replaced with a pavement of a similar type insofar as practical, using one of following designs for the portion beyond the return of the apron. However, some commercial drives serving large traffic generators may be designed as at-grade intersections, with out dropped curbs, because of their high traffic volumes. www.dot.state.oh.us /dist2/Permits/TestCommDrive.htm   (1251 words)

Infinite Improbability Drive - Wikipedia, the free encyclopedia The infinite improbability drive has been superseded by the Bistromathic drive, based on the alternate math used by waiters in restaurants, which has the advantage of not having improbable side effects or improbable things going wrong. The Bistromathic drive is more maneuverable than the Heart of Gold, but it seems that the Heart of Gold is still the faster of the two drives. In describing the invention of the drive, Douglas Adams exemplifies the principle of bootstrapping. en.wikipedia.org /wiki/Infinite_improbability_drive   (1251 words)

Zip drive -- Facts, Info, and Encyclopedia article The Zip drive is a medium-capacity removable (additional info and facts about disk storage) disk storage system, introduced by (additional info and facts about Iomega) Iomega in late 1994. Generally, higher capacity drives also handle all lower capacity media, although the 250 MB drive is much slower than the 100 MB one to write data on a 100 MB disk. One side effect of this implementation is that, on some drive models, it is possible to trick the software into allowing access to a different disk than it believes to be in the drive, thereby bypassing the password protection. www.absoluteastronomy.com /encyclopedia/z/zi/zip_drive.htm   (695 words)

Alcubierre drive - Wikipedia, the free encyclopedia The Alcubierre metric, also known as the Alcubierre drive or warp drive, is a speculative mathematical model of a spacetime exhibiting some features reminiscent of the fictional faster than the speed of light warp drive from Star Trek; hence the name. The Alcubierre Drive is often called a 'solution' of Einstein's field equations in general relativity, but this is inaccurate; see Alcubierre metric. For those familiar with the effects of special relativity, such as Lorentz contraction, mass increase and time dilation, the Alcubierre metric has some apparently peculiar aspects. en.wikipedia.org /wiki/Alcubierre_drive   (947 words)

Encyclopedia: IDF Caterpillar D9 The Caterpillar D9 is a large track-type tractor (commonly referred to as a bulldozer) with caterpillar tracks designed and manufactured by Caterpillar Inc.. Until the introducing of the D10 in the 1980's, the D9 was the larget conventional CAT dozer. Caterpillar Inc. does not manufacture a military version of the D9 per se, but the attributes that make the D9 popular for major construction projects make it desirable for military applications as well, and it has been particularly effective for the Israeli Defense Force (IDF). www.nationmaster.com /encyclopedia/IDF-Caterpillar-D9   (947 words)

Zip drive - Wikipedia, the free encyclopedia The original Zip drive had a data transfer rate of about 1 megabyte/second and a seek time of 28 milliseconds on average, compared to a standard 1.44 MB floppy's 500 Kbit/s (62.5 KB/s) transfer rate and several-hundred millisecond average seek time (today's average 7200 RPM desktop hard drives have average seek times of around 8.5-9 ms). The Zip system is based loosely on Iomega's earlier Bernoulli Box system; in both systems, a set of read/write heads mounted on a linear actuator flies over a rapidly spinning floppy disk mounted in a sturdy cartridge. Zip media is thicker, but otherwise similar in size to 3.5" (9 cm) floppy disks, which means the drive slot is large enough to accept such a floppy. en.wikipedia.org /wiki/Zip_disk   (1234 words)

Transwarp However, where warp drive seeks to propel a starship through layer manipulation, transwarp drive merely uses layers as a catalyst for the formation of a conduit. (In that fictional context) transwarp is a field of structural astrophysics dealing with warp field manipulation, and its specialized application as a catalyst for the formation of trans-locational conduits. A transwarp system is designed to gather layers of subspace into a highly-structured, multi-layer flight envelope, for the purpose of propelling a starship at high velocities. www.ebroadcast.com.au /lookup/encyclopedia/tr/Transwarp.html   (1234 words)

Thyristor Thyristors are mainly used where high currents and voltages are involved, and are often used to control alternating currents, where the change of sign of the current causes the device to automatically switch off. The thyristor is a four-layer semiconducting device, with each layer consisting of an alternately N or P-type material, for example N-P-N-P. The main terminals, labeled anode and cathode, are across the full four layers, and the control terminal, called the gate, is attached to one of the middle layers. The thyristor is a solid-state semiconductor device similar to a diode, with an extra terminal which is used to turn it on. hallencyclopedia.com /Thyristor   (992 words)

23343.990514&ELEMENT_SET=DECL Spring drive 26,31 or 41 is mounted on shafts 81 and 82 and is connected to cord pulley unit 18 by a power transfer gear unit 65 and a band shift transmission or gear unit 21. Specifically, the spring drive is mounted on transverse shafts 81,82; one gear 66 of the set 65 is mounted on the shaft 82 with the associated drum and meshes with the gear 67, which is mounted on shaft 92. Spring 103 is mounted to bar or rod 104 extending from the housing and biases the magnet bar lightly closely adjacent the outside surface of spring such as spring 34A, 34B, 34C and 44J wound on associated drum such as 28. www.wipo.int /cgi-pct/guest/getbykey5?KEY=99/23343.990514&ELEMENT_SET=DECL   (7320 words)

United States Patent Application: 0040092175 Drive is provided from the differential to a pair of drive shafts 68 which drive the rear wheels 69 of the vehicle, and from the transfer gearbox 67 to a third shaft 70 which drives a marine propulsion system in the form of a water jet 71. A driving shaft 14, which may be from the output stage of a gearbox or from a differential (not shown), enters the casing 12 through a circular aperture 16 to the left hand side of the casing 12 (as viewed), and is free to rotate within the casing. The driving shaft 14 comprises an input of the decoupler 10. appft1.uspto.gov /netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=/netahtml/PTO/srchnum.html&r=1&f=G&l=50&s1="20040092175".PGNR.&OS=DN/20040092175&RS=DN/20040092175   (2920 words)

International Drive - Wikipedia, the free encyclopedia International Drive is home to many small attractions, restaurants, and other commercial properties, in addition to the major attractions of SeaWorld, the Orange County Convention Center and Universal Orlando (across I-4 from I-Drive). International Drive (often abbreviated I-Drive) is Orlando, Florida 's main tourist strip, located southwest of downtown. The International Drive Master Transit and Improvement District was created in 1992 to help Orlando, Orange County, and I-Drive businesses work together to plan a transit service for the corridor and help promote area tourism. en.wikipedia.org /wiki/International_Drive   (2920 words)

Hotchkiss drive - Wikipedia, the free encyclopedia The differentiating characteristic of the Hotchkiss drive is the fact that it uses universal joints at both ends of the driveshaft, which is not enclosed. A Hotchkiss drive is an example of the latter, with a torque tube system being the other dominant direct-drive system. Some Hotchkiss driveshafts are made in two pieces with another universal joint in the center for greater flexibility, typically in trucks and specialty vehicles built on truck frames. en.wikipedia.org /wiki/Hotchkiss_drive   (2920 words)

Hard disk - Wikipedia, the free encyclopedia Before the early 1980s, most hard disks had 8-inch or 14-inch platters, required an equipment rack or a large amount of floor space (especially the large removable-media drives, which were often referred to as "washing machines"), and in many cases needed special power hookups for the large motors they used. It is important to note that hard drive manufacturers often use the metric definition of the prefixes "giga" and "mega." However, nearly all operating system utilities report capacities using binary definitions for the prefixes. ATA drives have typically had no problems with interleave or data rate, due to their controller design, but many early models were incompatible with each other and couldn't run in a master/slave setup (two drives on the same cable). en.wikipedia.org /wiki/Hard_drive   (2920 words)

Floppy disk - Wikipedia, the free encyclopedia Floppy disks are read and written by a floppy disk drive or FDD, the latter initialism not to be confused with "fixed disk drive", which is an old IBM term for a hard disk drive. Apple Computer was the first mass-market computer manufacturer to drop the floppy drive from a computer model altogether with the release of their iMac model in 1998, and Dell made the floppy drive optional in some models starting in 2003. Nonetheless, manufacturers were reluctant to remove the floppy drive from their PCs, for backward compatibility, and because many companies' IT departments appreciated a built-in file transfer mechanism that always worked and required no device driver to operate properly. en.wikipedia.org /wiki/Floppy   (7995 words)

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