Axial Force Torque
Axial Force Torque
Ultrasonic Motor
Mechanism
Dry friction is often used in contact, and the ultrasonic vibration induced in the stator is used both to impart motion to the rotor and to modulate the frictional forces present at the interface. The friction modulation allows bulk motion of the rotor (i.e., for farther than one vibration cycle); without this modulation, ultrasonic motors would fail to operate.
Two different ways are generally available to control the friction along the stator-rotor contact interface, traveling-wave vibration and standing-wave vibration. Some of the earliest versions of practical motors in the 1970s, by Sashida, for example, used standing-wave vibration in combination with fins placed at an angle to the contact surface to form a motor, albeit one that rotated in a single direction. Later designs by Sashida and researchers at Matsushita, ALPS, and Canon made use of traveling-wave vibration to obtain bi-directional motion, and found that this arrangement offered better efficiency and less contact interface wear. An exceptionally high-torque ‘hybrid transducer’ ultrasonic motor uses circumferentially-poled and axially-poled piezoelectric elements together to combine axial and torsional vibration along the contact interface, representing a driving technique that lies somewhere between the standing and traveling-wave driving methods.
A key observation in the study of ultrasonic motors is that the peak vibration that may be induced in structures occurs at a relatively constant vibration velocity regardless of frequency. The vibration velocity is simply the time derivative of the vibration displacement in a structure, and is not (directly) related to the speed of the wave propagation within a structure. Many engineering materials suitable for vibration permit a peak vibration velocity of around 1 m/s. At low frequencies 50 Hz, say a vibration velocity of 1 m/s in a woofer would give displacements of about 10 mm, which is visible to the eye. As the frequency is increased, the displacement decreases, and the acceleration increases. As the vibration becomes inaudible at 20 kHz or so, the vibration displacements are in the tens of micrometers, and motors have been built that operate using 50 MHz surface acoustic wave (SAW) that have vibrations of only a few nanometers in magnitude. Such devices require care in construction to meet the necessary precision to make use of these motions within the stator.
More generally, there are two types of motors, contact and non-contact, the latter of which is rare and requires a working fluid to transmit the ultrasonic vibrations of the stator toward the rotor. Most versions use air, such as some of the earliest versions by Dr. Hu Junhui. Research in this area continues, particularly in near-field acoustic levitation for this sort of application. (This is different from far-field acoustic levitation, which suspends the object at half to several wavelengths away from the vibrating object.)
Applications
Canon was one of the pioneers of the ultrasonic motor, and made the “USM” famous in the late 1980s by incorporating it into its autofocus lenses for the Canon EF lens mount. Numerous patents on ultrasonic motors have been filed by Canon, its chief lensmaking rival Nikon, and other industrial concerns since the early 1980s. The ultrasonic motor is now used in many consumer and office electronics requiring precision rotations over long periods of time.
The technology has been applied to photographic lenses by a variety of companies under different names:
Canon USM, UltraSonic Motor
Minolta, Sony SSM, SuperSonic Motor
Nikon SWM, Silent Wave Motor
Olympus SWD, Supersonic Wave Drive
Panasonic XSM, Extra Silent Motor
Pentax SDM, Supersonic Drive Motor
Sigma HSM, Hyper Sonic Motor
References
^ Ueha, S.; Tomikawa, Y.; Kurosawa, M.; Nakamura, N. (December 1993), Ultrasonic Motors: Theory and Applications, Clarendon Press, ISBN 0-1985-9376-7
^ Shigematsu, T.; Kurosawa, M.K.; Asai, K. (April 2003), “Nanometer stepping drives of surface acoustic wave motor”, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 50, IEEE, pp. 376385
^ Hu, Junhui; Li, Guorong; Lai Wah Chan, Helen; Loong Choy, Chung (May 2003), “A standing wave-type noncontact linear ultrasonic motor”, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 48, issue 3, IEEE, pp. 699708
^ Hu, Junhui; Nakamura, Kentaro; Ueha, Sadauki (May 1997), “An analysis of a noncontact ultrasonic motor with an ultrasonically levitated rotor”, Ultrasonics, 35, Elsevier, pp. 459467
^ Koyama, D.; Takeshi, Ide; Friend, J.R.; Nakamura, K.; Ueha, S. (September 2005), “An ultrasonically levitated non-contact sliding table with the traveling vibrations on fine-ceramic beams”, 2005 IEEE Ultrasonics Symposium, 3, IEEE, pp. 15381541
External links
Ultrasonic Actuators, Motors and Sensors page, from NASA JPL
Micro/Nano Physics Research Laboratory, with research on ultrasonic piezoelectric actuators by Dr James Friend
Institute of Piezomechanics, Kaunas University of Technology, Lithuania
Disassembly of a Canon EF lens, revealing an ultrasonic motor
v d e
Electric motors
Broad Motor Categories
Synchronous motor AC motor DC motor
Conventional
Electric Motors
Induction Brushed DC Brushless DC Stepper Linear Unipolar Reluctance
Novel Electric Motors
Ball bearing Homopolar Piezoelectric Ultrasonic Electrostatic Switched Reluctance
Motor
Controllers
Adjustable-speed drive Amplidyne Direct torque control Direct on line starter Electronic speed control Metadyne Motor controller Variable-frequency drive Vector control Ward Leonard control Thyristor drive
See also
Barlow’s Wheel Nanomotor Traction motor Lynch motor Mendocino motor Repulsion motor Inchworm motor Booster (electric power) Brush (electric) Electrical generator Alternator
Categories: Electric motorsHidden categories: Wikipedia articles needing clarification from October 2009 | All Wikipedia articles needing clarification
About the Author
I am China Crafts Suppliers writer, reports some information about fiberglass and composite materials , structural insulated panel manufacturers.
Axial vs Rock Force ROCK FORCE NO TORQUE TWIST
Mattel Football Sounds
Mattel Football Sounds
Mattel Football = LED Football
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Fisher Price ESPN Super Sounds Soccer – Ball $7.60 ESPN Super Sounds Soccer replacement soccer ball and needle to inflate it with…. |
Gas Rc Trucks In Snow
Gas Rc Trucks In Snow
Outline of sports
Types of sport
Physical sports
Air sports
Lima Lima aerobatics team performing over Louisville.
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Members of the Gotemba Kyd Association demonstrate Kyd.
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snowmobileracing
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Main article: Board sports
Sports that are played with some sort of board as the primary equipment.
Skateboard vert jump at the Sprite urban games 2006 in London.
Snowboard figure at the 2008 Shakedown
Surfing in Hawaii
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Skysurfing
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fingerboarding
Boules
Lawn bowler Tim Mason
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Main article: Bowling
Candlepin bowling
Duckpin bowling
Five-pin bowling
Skittles (sport)
Ten-pin bowling
Catch games
Curby
Dodgeball
Ga-ga
Prisoner Ball
Yukigassen
Climbing
Canyoning
Main article: Climbing
Rock Climbing
Bouldering
Canyoning (Canyoneering)
Mountaineering
Rope Climbing
Ice Climbing
[[Cheerleading]]
Cycling
A Track Cycling Race
Main article: Cycling
Sports using bicycles or unicycles.
Bicycle
Main article: Bicycle
Artistic cycling
BMX racing
Bobrun cycling
Freestyle BMX
Cyclo-cross
Crosscountry Mountain biking
Road bicycle racing
Track cycling
Downhill Mountain biking
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Dirt jumping
Slopestyle
Racing Bicycle (The Award of Records Sports)
unicycling
Skibob
Skibobbing
Unicycle
Main article: Unicycle
Mountain unicycling
Unicycle trials
Combat sports
Main article: Combat sports
Main article: Martial Arts
Combat sport is a competitive contact sport where two combatants fight against each other using certain rules of engagement.
Grappling
Aikido
Aiki-jjutsu
Brazilian Jiu-Jitsu
Catch wrestling
Glima
Judo
Jujutsu
Kinomichi
Kurash
Malla-yuddha
Mongolian wrestling
Pehlwani
Sambo (martial art)
Shuai Jiao
Ssireum
Sumo
Varzesh-e Pahlavani
Wrestling
Yal Gre
Skirmish
Airsoft
Laser tag
Paintball
Weapons
Battjutsu
Eskrima
Egyptian stick fencing
Fencing
Gatka
Haidong Gumdo
Hojjutsu
Iaid
Iaijutsu
Jd
Jogo do Pau
Jkend
Juttejutsu
Kendo
Kenjutsu
kung fu
Kyd
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Modern Arnis
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Okinawan kobud
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Silambam
Sjutsu
wushu (sport)
Striking
Choi Kwang-Do
Boxing
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Fujian White Crane
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Kenp
Kickboxing
Lethwei
Muay Thai
Pradal Serey
San shou
Savate
Shaolin kung fu
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Silat
Subak
Taekkyeon
Taekwondo
Taido
Wing Chun
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Zui Quan
Mixed or hybrid
Baguazhang
Bando
Bartitsu
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Hapkido
Hwa Rang Do
Jeet Kune Do
Kajukenbo
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Krav Maga
Kuk Sool Won
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Mixed martial arts
Northern Praying Mantis
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Pankration
Pencak Silat
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Shidokan
Shoot boxing
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Shorinji Kempo
Systema
Tai chi chuan
Vajra Mushti
Vovinam
Xingyiquan
Yoga
Cue sports
Main article: Cue sports
Carom billiards
Three-cushion
Five-pins
Balkline and straight rail
Cushion caroms
Four-ball (yotsudama)
Artistic billiards
Novuss
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Eight-ball
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One-pocket
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Baseball pocket billiards
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Trick shot competition
Speed pool
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Russian pyramid
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Snooker plus
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English billiards
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Bumper pool
Dance
Three ballet dancers performing a grand jet jump
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Main article: Outline of dance
Ballet
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Ensemble
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Equine Sports
Main article: Equestrianism
Sports using a horse.
Barrel racing
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Eventing
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Horse racing at Arlington Park, 2007
Hunter
Reining
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Show Jumping
Steeplechase
Team penning
Tent pegging
Western Pleasure
Fishing
Main article: Fishing
Angling
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Casting
Noodling
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Flying disc sports
Main article: Flying disc games
Disc dog
Disc golf
Dodge disc
Durango boot
Double disc court
Flutterguts
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Fricket, (AKA disc cricket, cups, suzy sticks or crispy wickets)
Friskee
Goaltimate
Guts (sport)
Hot box
Ringo
Ultimate (sport)
Football family
Main article: Football
Association football
Five-a-side football
Australian football
Gaelic football
Gridiron football
American football
Canadian football
Arena football
Six-man football
Eight-man football
Nine-man football
Rugby football
Rugby league
Rugby league sevens
Rugby league nines
Touch Football
Wheelchair rugby league
Rugby union
Rugby sevens
Footvolley
Harrow Football
Haven Ball
Gymnastics
Trampoline gymnast Jason Burnett at 2008 Canadian National Championships
Main article: Gymnastics
Artistic gymnastics
Balance Beam
Floor
High Bar
Parallel Bars
Pommel Horse
Still Rings
Uneven Bars
Vault
Majorette
Competitive rope jumping
Juggling
Rhythmic gymnastics
Sports acrobatics
Tricking
Parkour
Trampolining
Trapeze
Flying trapeze
Static trapeze
Handball Family
Basketball player Dwight Howard making a slam dunk at 2008 Summer Olympic Games
Main article: Team handball
Handball games often have similarities to racquet or catch games.
American handball
Australian Handball
Basketball
European Handball
Field handball
Fistball
Fives
Eton Fives
Rugby Fives
Footvolley
Frisian handball
Four square
Gaelic handball
Goalball
Jeu de paume
Korfball
Netball
Palla
Sepak takraw
Tchoukball
Team handball
Valencian pilota
Volleyball
Water polo
Hockey family
Main article: Hockey
Bandy
Broomball
Camogie(The women’s variant of hurling)
Field Hockey
Indoor field hockey
Floorball
Hurling (The ball can be handled so Hurling is on the periphery of the ‘hockey family’).
Ice hockey
Ice hockey players Roman Hamrlik and Joffrey Lupul dueling for position
Ringette
Pond hockey
Knotty
Roller hockey
Inline hockey
Road hockey
Roller hockey (Quad)
Shinty
Spongee
Underwater hockey
Hunting
Main article: Hunting
Sometimes considered blood sports.
Beagling
Big game hunting
Deer hunting
Fox hunting
Hare coursing
Wolf hunting
Kite Sports
Kite buggy
Kite fighting
Kite landboarding
Kitesurfing
Parasailing
Snow kiting
Sport kite (Stunt kite)
Mixed discipline
The three components of triathlon: swimming, cycling, running
Biathlon
Duathlon
Decathlon
Heptathlon
Modern pentathlon
Pentathlon
Triathlon
Motorboat racing
Main article: Motorboat racing
Drag boat racing
F1 Powerboat Racing
Hydroplane racing
Jet sprint boat racing
Offshore powerboat racing/gjgg
Motorcycle racing
Main article: Motorcycle racing
Auto Race
Board track racing
Cross-country rally
Endurance racing
Enduro
Grand Prix motorcycle racing
Grass Track
Hill Climb
Ice Racing
Indoor short track
Motocross
Motorcycle drag racing
Motorcycle speedway
Road racing
Superbike racing
Supercross
Supermoto
Supersport racing
Superside
Track racing
TT racing
Free Style Moto
Orienteering family
Geocaching
Orienteering
Rogaining
Paddle sports
Canoeing
Canoeing
Outrigger canoeing
Kayaking
Main article: Kayaking
Creeking
Flyak
Freeboating
Royaking
Sea kayaking
Squirt Boating
Surf Kayaking
Whitewater kayaking
Rafting
Rafting
Rafting
White water rafting
Rowing
Gig racing
Coastal and ocean rowing
Surfboat
Dragon boat racing
Double scull
Quad four
Single scull
Straight four
Polo
Bicycle polo
Elephant polo
Horse polo
Racquet (or racket) sports
Sports where a player use a racquet (or racket) to hit a ball or other objects.
Badminton
Ball badminton
Frontenis
Jai-Alai
Matkot
Padel tennis
Paddle tennis
Paddleball
Pelota mixteca
Pickleball
Pington
Platform tennis
Racquetball
Racquets
Racketlon
Rapid Ball
Real tennis
Soft tennis
Speedball
Speedminton
Squash
Squash tennis
Stick
Table tennis
Tennis
Xare
FOOTBALL
Remote control
Model Aerobatics
RC Racing
Robot combat
Running
200 meters sprint
Main article: Running
Endurance
Cross-country running
Half marathon
Marathon
Ultramarathon
Sprint (race)
Hurdles
Sailing
Windsurfing
Main article: Sailing
Ice yachting
Land sailing
Land windsurfing
Sailing
Windsurfing
Kiteboarding
Land Kiteboarding
Skiing
Main article: Skiing
Alpine skiing
Cross country skiing
Freestyle skiing
Nordic combined
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Ski jumping
Skijoring
Ski touring
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Telemark skiing
Sled sports
United States Air Force Major Brady Canfield, 2003 U.S. skeleton champion, shows his takeoff form.
Main article: Sledding
Bobsleigh
Luge
Skibobbing
Skeleton
Toboggan
Shooting sports
Main article: Shooting sports
Sports using a firearm.
Clay pigeon shooting
Skeet shooting
Trap shooting
Sporting clays
Target shooting
Field target
Fullbore target rifle
High Power Rifle
Benchrest shooting
Military Service Rifle
Metallic silhouette
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Stacking
Sport stacking
Street Stunts
Free running
Freestyle Football
Parkour
Tricking
Tag games
Kabbadi match in progress
Main article: Tag games
British bulldogs (American Eagle)
Hana Ichi Monme
Hide and seek
Kabaddi
Kho kho
Kick the can
Oztag
Red rover
Tag
Walking
Hiking
Backpacking (wilderness)
Race Walking
Greece – Hungary Water polo match (World Junior Championship 2004 Naples, Italy)
Wall-and-ball
Games involving opponents hitting a ball against a wall/walls using a racket, or other piece of equipment, or merely gloved/barehanded.
Australian handball
Basque pelota
Fives
Gaelic handball
Jorkyball
Racquetball
Rapid ball
Squash
Squash tennis
Wallball
Wallyball
A game of squash
Water sports
Main article: Water sports
Ball Sports
Underwater rugby
Underwater Soccer
Water Polo
Canoe Polo
Michael Phelps swimming breaststroke at the 2008 Missouri Grand Prix.
Competitive swimming
Main article: Competitive swimming
Backstroke
Breaststroke
Butterfly stroke
Freestyle swimming
Individual Medley
Synchronized swimming
Medley relay
Subsurface & recreational
Freediving
Scuba Diving
Snorkelling
Weightlifting
Main articles: Olympic weightlifting and Powerlifting
Clean and jerk
Deadlifting
Benchpress
Snatch
Squat (exercise)
Mind sports
Main article: Mind sports
Requiring little or no physical exertion or agility mind sports are often not considered true sports. Some mind sports are recognised by sporting federations. The following list is intended to represent anything that is likely to be referred to as a mind sport, not to argue their validity as sports.
Card Games
Main articles: Card Games and List of card games
Other
skipping
stunt pogo
stilt walking
fastbol
zorbing
skiball
chain surfing
Speedcubing
Speedcubing
2x2x2
3x3x3
4x4x4
5x5x5
6x6x6
7x7x7
Strategy Board Games
A game of mahjong being played in Hangzhou, China
Chess
Checkers
Chinese Checkers
Diplomacy
Draughts
Go
Go-Moku
Jacquet
Mancala
Mahjong
Reversi (Othello)
Sogo (Score four)
Stratego
Battleship
Connect Four
Miscellanea
Animal sports
Chilean rodeo
beetle fighting
Bull riding
Bull fighting
Dog sports
Camel racing
Charreada
Ferret legging
Float fishing
Hamster racing
Pigeon sport
Thoroughbred racing
Pato
Pole fishing
Polo
Chilean rodeo
Buzkashi
Hunter-jumpers
Combined training
Rattlesnake Round-Up
Dog Racing
Pig racing
Athletics (track and field)
Pole vault
Sprinting
Steeplechase
Cross-Country
Jumping
Triple jump
Long jump
High jump
Pole vault
Throwing
Discus
Hammer throw
Javelin
Atlatl
Shot put
Electronic sports
Sports played using electronic devices.
Combat robot
Radio-control vehicles
Geo caching
Contesting
StarCraft
Competitive Video Games
Endurance sports
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Running
Swimming
Rowing
Wheelchair racing
Wood chopping
Cross-country skiing
Skipping
Dancing
Miscellaneous sports
Bungee jumping
Boomerang
Competitive eating
Egg and spoon race
Footbag (hacky sack)
Haggis hurling
Lumberjack
Tetherball
Three-legged race
Sack race
Wallball
Skating sports
Aggressive inline skating
Artistic roller skating
Bobrun skating
Ice skating
Inline speed skating
Figure skating
Rinkball
Rink hockey
Freestyle slalom skating
Roller derby
Roller skating
Roller speed skating
Short track speed skating
Skater hockey
Speed skating
Synchronized skating
Snowsports
A snowborder and a skier
A ski jumper using the V-style
Freestyle skiing
Ski flying
Skibob
Boardercross
Freestyle snowboarding
Snowshoeing
Skiboarding
Strength sports
Sports mainly based on sheer power.
Arm Wrestling
Arm Wrestling
Thumb wrestling
Bodybuilding
Finger Jousting
Powerlifting
Toe wrestling
Tug-o-war
Zourkhaneh
Table sports
Chess
Pool balls
Air hockey
Backgammon
Connect Four
several other Carom billiards variants
Eight-ball (and Blackball)
many other Pocket billiards (pool) variants
many other (generally obsolete) Obstacle variations Cue sports variants
Draughts (checker)
Dominoes
foosball
Mahjong (Taipei)
Reversi (Othello)
Shogi
Scrabble (and variants)
Subbuteo
Table football
Table Tennis (Ping Pong)
Table hockey
Tiddlywinks
Xiangqi
Target sports
Sports where the main objective is to hit a certain target.
Archery
Billiards
Bowling Pin Shooting
Carom billiards
Pool
Calva
Conkers
Croquet
Darts
Golf
Speed golf
Golfcross
Horseshoes (horseshoe throwing)
Knife throwing
Lawn bowls
Matball
Pall mall
Petanque
Shooting
Trugo
Skittles (sport)
Skee ball
Pitch and putt
Team sports
Sports that involve teams.
Football player Lionel Messi shoots from just outside the Manchester United penalty area during the 2009 UEFA Champions League Final
Association Football (soccer)
Australian rules football
Ball hockey
Basketball
Beach handball
Beach soccer
Beach rugby
Beach volleyball
Bossaball
Box/indoor lacrosse
Bowling
Basque pelota
Broomball
Bunnock
Camogie
Cubbies
Footballtennis
Futsal
Gateball
Handball
Hornussen
Horseshoe
Indoor soccer
Kickball
Lacrosse
Marching Band
Mesoamerican ballgame
Polocrosse
Paintball
Ringette
Roller Hockey (Rink Hockey)
Royal Shrovetide Football
Sepak Takraw
Skittles
Slamball
Soccer
Speedball
Tennis Polo
Throwball
Underwater football
Wallyball
Wheelchair basketball
Wheelchair tennis
Wiffle ball
Six-man football
Flag football
Windsports
Sports which use the wind (apart from sailing):
Kite flying
parachuting
Oscar sport
History of sports
Main article: History of sports
Sports history organizations
Sports timeline
General sports concepts
Athlete
Coach
Disabled sports
Extreme sports
Fan
Fantasy sports
Female sport
Gamesmanship
Multi-sport events
Nationalism and sport
Olympic Games
Performance art
Professional sport
Professional sports
Regulation of sport
Spectator sport
Sponsor
Sporting club
Sports coaching
Sports equipment
Sports in film
Sports injuries
Sports journalism
Sportsmanship
Sports marketing
Sports memorabilia
Sportsperson
Sportswear
Student athlete
Violence in sports
World record
Sports governing bodies
Main article: Sports governing bodies
This section requires expansion.
World governing bodies of various notable sports:
The Olympic Games: International Olympic Committee (IOC)
Baseball: International Baseball Federation (IBAF), but several countries/regions have their own professional bodies with rules variations, including Cuba, US/Canada, and Japan
Basketball: International Basketball Federation (FIBA), but national pro leagues may diverge from its rules, as in the US
Cricket: International Cricket Council (ICC)
Cue sports governing bodies are divided by discipline:
Carom billiards: Union Mondiale de Billard (UMB)
Pocket billiards (pool): World Pool-Billiard Association (WPA)
Snooker and English billiards: World Professional Billiards and Snooker Association (WPBSA or World Snooker)
Football variants have many governing bodies, with widely divergent rules:
Association football (soccer): International Federation of Association Football (FIFA)
Gridiron football is divided in into US and Canadian rules and bodies
Rugby football is divided into two “codes” or sets of rules, union and league
Australian-rules football: Australian Football League (AFL)
Gaelic football: Gaelic Athletic Association (GAA)
International-rules football: A conference of the AFL and GAA
Golf has no single governing body, but is divided nationally and regionally.
Ice hockey: International Ice Hockey Federation (IIHF)
Motor racing:
Car racing: International Federation of the Automobile (FIA)
Motorcycle racing: International Motorcycling Federation (FIM)
Motorboat racing: International Motonautical Union (UIM) and others, depending on boat type
Tennis: International Tennis Federation (ITF)
See also
Sports portal
Sports-related lists
List of sportspeople
List of sports attendance figures
List of professional sports leagues
References
Merriam-Webster dictionary entry
Ancient Olympic Games
Sport and apartheid
External links
Find more about Sport on Wikipedia’s sister projects:
Definitions from Wiktionary
Textbooks from Wikibooks
Quotations from Wikiquote
Source texts from Wikisource
Images and media from Commons
News stories from Wikinews
Learning resources from Wikiversity
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Categories: Outlines | Sports-related listsHidden categories: Articles to be expanded from December 2009 | All articles to be expanded | Articles to be expanded from June 2009
About the Author
I am a professional writer from China Quality Dress, which contains a great deal of information about remote controlled ufo , gasoline rc cars, welcome to visit!
E-Maxx Snow Video 4×4 rc gas nitro electric RC truck off road RC racing trucks RC buggy
Duratrax Evader Shocks
Duratrax Evader Shocks
Duratrax Evader DT – Installing Hard Anodized Shocks
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Duratrax Shock Tower Front Evader ST $3.09 This is the Stock replacement Front Shock Tower for the Duratrax Evader. / This part bolts directly to the chassis. / / FEATURES: Stress-Tech part / Three different shock mounting positions / / INCLUDES: One Rront Shock Tower (key #49) / / REQUIRES: Assembly onto Duratrax Evader / / SPECS: Length at farthest shock mounting positions: 85mm (3.35″”) / Thickness: 6.6mm (0.26″”)… |
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Duratrax Shock Parts Set Evader EXT $3.99 This is the Shock Parts Set for the Duratrax Evader EXT (DTXD29**). / / FEATURES: Black and gray plastic parts for replacing damaged shock parts / / INCLUDES: Two plastic upper spring clamps key #122 / Two plastic shock ball ends & lower spring clamps – key #31 / Two black shock pistons – key # 4 / / REQUIRES: Installation on the shock / / tlw 11/19/07 / ir/jxs… |
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Duratrax Shock Set Front Hard Anodized Evader ST (2) $29.99 This is a Front Anodized Natural Aluminum Shock Body Set / for the Duratrax Evader. / / FEATURES: Hard Aluminum, Metal, and Plastic Construction / Anodized Natural in Color / / INCLUDES: (2) Aluminum Shock Bodies / (2) Shock Ends / (4) Shock Shafts / (3) Pistons / (2) Balls / (4) E-Clips / (2) Oil Seals / Instructions / / REQUIRES: Front Shock Springs… |
Duratrax Maximum St Engine
Duratrax Maximum St Engine
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Duratrax Engine Nut Maximum ST/BX $5.34 This is the Replacement Engine Nut for the Duratrax Maximum ST and BX. / / FEATURES: The engine nut is constructed of plain black metal. / Both ends are thread; one end will screw onto the crankshaft. / 11mm & 4mm e-clip grooves. / Plain silver metal, 11mm e-clip / Plain black metal button head screw with a hexagon socket drive / insert. / This goes on the crankshaft after the flywheel and “”insi… |
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Mattel Stock Symbol
Mattel Stock Symbol
Kmart Application
Kmart Application
Job Description For
Like most large department stores in the United States, it is constantly growing and expanding its reach. Kmart currently has a strong presence in countries all over the world. This in turn means that there is a constant need for employees to fill all these new jobs that are created. It is beneficial to apply for a job at Kmart because of this expansion; you are more likely to get a job right away. The Kmart website and application process is unique to its peers because the instructions and forms are offered in both English and Spanish, making jobs accessible to more people.
Applying for a position at Kmart is easy, as everything you need is located on the company’s website and you can be assured that the application and your resume will be going directly to the appropriate people. Take the time to fill out your personal information, making sure that it is accurate and up to date. Try not to leave out any information or be vague in your responses. If an employer feels that there is not information, they will dismiss your application. When answering any other questions, be sure to be concise and clear.
Your responses should be to the point, as your application has only a few seconds to make a good impression. Pay attention to spelling and grammar and give the application a re-read before you send it off. If you can, have a friends or family member proof read, to catch something you may have missed.
You will be asked to share information regarding your past employment, education and your prospective availability. Where possible, highlight any skills or past work experience that could benefit you in your new position. There are many doors that can open when joining the Kmart family, sometimes just getting your foot in the door is the first step. When applying for management positions you will be asked to also send a comprehensive resume to accompany your online application. Kmart does reserve the right to ask you to complete and online assessment examination to determine whether or not you meet the minimum qualifications for specific job positions.
In some cases references are required for specific positions. If this is the case, ask past managers or supervisors in the relevant field to be your reference. It is beneficial if you are in their good graces and they can speak highly of you. Your potential employer will be looking to them for first hand insight about your work ethic, level of competency and personality.
Regardless of what position you are applying for, it is common courtesy to wait about a week before you make the follow-up phone call. This is to give the HR department enough time to receive and consider your application. The follow-up call is important because it allows you to speak directly to a person and allows you to get a contact name for future inquiries. Not only that, but by putting a voice to a name, you are ensuring that you are standing apart from the pack, and are seriously considered for this position.
About the Author
Kmart online job application Help?
I have filled out an application for kmart online but everytime i try to choose the loss prevention poisition it says error. i want to work in kmart for LP in a different city but i cant do it. Should i call kmart?
Did you fill in all your information and then try to select a position or find the position in the location you want first?
I did it the latter way, by finding the position and then clicking apply to then fill out information.
319 Introducing Your Plug-And-Play Turnkey Money Machine!
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Axial Ct Anatomy
Axial Ct Anatomy
Six Ways to Get the Inside Picture a Quick Reference for Students of Radiology
Projection radiography
you may call them radiographs or more formally Roentgenographs, because they’re named after the discoverer of X-rays, Wilhelm Conrad Roentgen. These are often used for evaluation of bony structures and soft tissues. An X-Ray machine directs electromagnetic radiation upon a region in the body. The lower the density of the object, the more light passes through. Thus radiation tends to pass through skin, fat, muscle, and other tissues, but is absorbed by bones, tumors, and lungs affected by severe pneumonia. Radiation which has passed through a patient then exposes onto an X-ray film. Areas of film exposed to higher amounts of radiation will usually appear dark gray after development. The unexposed areas of film of course stay white.
Fluoroscopy
Fluoroscopy and angiography are special applications of X-ray imaging, in which a fluorescent screen or image intensifier tube is connected to a small television system, which allows real-time imaging of structures in motion. Radiocontrast agents are administered, which are often swallowed or injected into the body of the patient, that help delineate anatomy such as the blood vessels, the genitourinary system or the gastrointestinal tract. There is a radiocontrast agent for each specific type of evaluation. For example, barium in a suspension is administered into the gastrointestinal tract and the image is taken with fluoroscopy or radiography. Radiocontrast agents, which ‘soak up’ X-ray radiation, in conjunction with the real-time imaging allows demonstration of dynamic processes. Peristalsis in the digestive tract or blood flow in arteries and veins can easily be seen dynamically this way, for instance.
CT scanning
CT imaging uses X-rays in conjunction with computing algorithms to take an image of a variety of soft tissues in the body. CT is acquired in the axial plane, while coronal and sagittal images can be rendered by computer software reconstruction. It is of course only recently that the combined studies of computer imaging such as 3D ray-tracing and Computer Assisted Design have made this process possible. Yes, CT imaging owes a little debt to movies like “Tron”! Radiocontrast agents are often used with CT for enhanced delineation of the patient’s anatomy. Intravenous contrast allows 3D reconstructions of arteries and veins, showing them as a network of branching tunnels in real-time space. While radiographs provide higher resolution for bone X-rays, CT can generate much more detailed images of the soft tissues. CT exposes the patient to more ionizing radiation than a radiograph, which is the main reason it isn’t used any more oftan than it needs to be.
Ultrasound
Medical ultrasonography uses ultrasound, literal high-frequency sound waves, to visualize soft tissue structures in the body in real time. No ionizing radiation is involved, but the quality of the images obtained using ultrasound is highly dependent on the skill of the person performing the exam, who is known as the ultrasonographer. The use of ultrasound in medical imaging has developed mostly within the last thirty years. The first ultrasound images were static and two dimensional, but with modern-day ultrasonography 3D reconstructions can be observed in real-time. Because ultrasound does not utilize ionizing radiation like radiography, CT scans, and nuclear medicine imaging techniques, it is generally considered safer. For this reason, this imaging method plays a vital role in obstetrical imaging. Fetal development can be thoroughly evaluated, allowing early diagnosis of fetal anomalies or confirmation of a normal gestation.
MRI/NMR
MRI uses strong magnetic fields to align spinning hydrogen proton nuclei within body tissues, then uses a radio signal to disturb the axis of rotation of these nuclei. It then observes the radio frequency signal generated as the nuclei return to their baseline states. MRI scans give the highest quality soft tissue contrast of all the imaging modalities. With advances in scanning speed and spatial resolution and improvements in computer 3D algorithms and hardware, MRI has made greatleaps forward in the recent years. One distinct disadvantage is that the patient has to hold still for long periods of time in a noisy, cramped space while the imaging is performed. Recent improvements in magnet design like wider, shorter magnet bores and more open magnet designs, have brought some relief for claustrophobic patients, who previously had to be sedated – unfortunate if you are looking at the brain on the MRI, since the brain shows different activity when sedated. MRI has it’s best benefit in imaging the brain, spine, and musculoskeletal system. The modality can be contraindicated for patients with pacemakers (watch out for those magnets!), certain types of cerebral aneurysmal clips or metallic hardware due to the strong magnetic fields. Areas of present advancement include functional imaging, cardiovascular MRI, as well as MR image guided therapy.
Nuclear medicine
Nuclear medicine imaging, our newest technology, involves the administration into the patient of substances labeled with radioactive tracers which have affinity for particular tissues. The heart, lungs, thyroid, liver, gallbladder, and bones are commonly evaluated for particular conditions using nuclear medicine techniques. While anatomical detail is limited in these kinds of images, nuclear medicine is useful in displaying physiological functions. For instance, processes such as the growth of a tumor can often be monitored, even when the tumor cannot be adequately visualized using any of the other methods. The principal imaging device is the gamma camera which detects the radiation emitted by the tracer in the body and displays it as an image on a computer monitor. Often the information is converted into a series of slices through the body like a loaf of bread. In the most modern devices, nuclear medicine images can be fused with a CT scan taken at the same time so that the physiological information can be super-imposed with the anatomical structures to improve diagnostic accuracy. PET scanning is another kind of nuclear medicine. The applications of nuclear medicine can include the scanning of bones, which traditionally has had a strong role in the staging of cancers. Molecular Imaging is the new and exciting frontier in this field.
They say that a picture is worth a thousand words, but the development of each of these technologies to show doctors what’s happening inside the body in a non-invasive fashion has been worthwhile for saving many times a thousand lives!
About the Author
Freelance writer for over eleven years.
Basic CT Anatomy of the Heart and Coronary Arteries
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Cardiac CT Imaging: Diagnosis of Cardiovascular Disease $3.57 CT has long been considered an accurate technique in the assessment of cardiac structure and function, but advances in computing power and scanning technology have resulted in its increasing popularity. It is particularly useful in evaluating the coronary arteries, myocardium, carotid, renal and peripheral arteries, pulmonary veins, aorta, pericardium, and cardiac masses, such as thrombus of the l… |
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Atlas of Human Cross-Sectional Anatomy: With CT and MR Images $376.05 Atlas of Human Cross-Sectional Anatomy Third EditionDonald R. Cahill, Ph.D., Matthew J. Orland, M.D., and Gary M. Miller, M.D.Since its first publication a decade ago, Atlas of Human Cross-Sectional Anatomy has become a standard reference for the interpretation of sectional images obtained with either computed tomography or magnetic resonance imaging. Now, this Third Edition has been substantially… |
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Step by Step Cross Sectional Anatomy (Step by Step S.) (Step by Step) $27.99 The analysis of cross-sectional anatomical images is an excellent supplementary method of teaching anatomy to students, and this user friendly pocket guide is an excellent reference and pedagogical tool. Designed for easy reference, it also acts as a practical guide towards the interpretation of CT studies. In full colour throughout, the book contains a figure and description on each page, of imag… |
Axial Age
Axial Age
Half Awake Humanity
Where are we as a people, a species, humanhood? Who can really answer that question with any degree of comparison or understanding? Are we facing our final evolutionary exam as Buckmeister Fuller contends. And how would he know that? What powers are there that we have that will allow us to find the answers to the myraid of problems facing us in the near future?
We need the wisdom that only an increased consciousness can generate.
Peter Russell tells us that, “Knowledge is not the end point of the evolution of intelligence. Many have pointed to a heirarchy of data, information, knowledge, and wisdom. But, wisdom determines how that knowledge is used.” We to awaken to the awsareness of who we are. We ARE and we can only approach the creative Consciousness (the Consciousness) in the first person singluar, present tense-
I AM!
I am THAT….and the “that” is everything in the universe that comes after we’ve said, I am! So, far we’ve awaken only to that which our egos desire and not what the creative power within beckons us to be aware of and realize. There can be no doubt that as one observes human history, there have been those unique, few as they are, who appeared to have been fully awake. We call them by various names: the enlightened ones, mystics, prophets, and seers.
What they all had in common is that they saw the ILLUSION of the material world.
One of the words or concepts used for the transfer, connection, or awakening to our higher being (the “AM” that works with “I”) is darshan- a sanskrit term meaning “sight” or “vision.” We have little clue as to what the power of the internet is or how it’s being used as an exponential thrust to aquiring knowledge tht CAN, and I repeat CAN, lead to divine wisdom.
May we who are half awake after eons of time, suddenly experience an epiphany or something to an axial age on steroids that we might be fully awake before or around 2012.
About the Author
As a spiritual-futurist my commentaries and articles deal primarily with an interpretation of current events in light of macro-universal forces at play.
Armstrong: Second Axial Age
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Karen Armstrong: Suggestions for a Second Axial Age $20.00 Karen Armstrong looks at the experience of transcendence as it was conceived and expressed in all of the great world religions during the Axial Age of antiquity (c. 700-200 BCE). She examines the various ways transcendence was understood in later generations and discusses the modern dilemma of faith, asking whether we are now in the throes of a Second Axial Age…. |
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New RACERS EDGE Infrared Mini Temp Gun Popular High Quality Practical Modern Design Exquisite $62.54 100% safe & secure shopping; Superior customer service…. |
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Syma S107/S107G R/C Helicopter – Yellow $18.99 The brand new GYRO S107 3.5CH Mini RTF RC Helicopter comes with the greatest advancement in Helicopter Technology, a Gyro. No more crashing, no more replacing parts, the GYRO has changed the Helicopter industry completely, making this RC Helicopter super easy to fly and maneuver. Great for people of all skill levels, this bad boy features a coaxial rotor a single rear rotor for precise movement an… |
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Syma S107/S107G R/C Helicopter *Colors Vary $19.99 This Brand New 3 Channel Gyro mini Metal rc helicopter is 1 of the world’s newest, smallest and lightest RC Helicopter you can get! At approx. 7.5″ long, it easily fits in the palm of your hand and is fully functional, equipped with latest Gyroscope technology, which makes this helicopter an instant hot seller in the RC World. This mini Gyro Metal helicopter charges directly either from the USB ca… |
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Syma Mini Metal 3 Channel RC Helicopter Series with Gyro with Free Balance Bar! $24.99 The Syma S107 3ch Mini RC Helicopter Metal Series with Gyro is an easy to fly mini 3 channels helicopter. This helicopter is designed for indoor flight only. The double rotor design helps stabilize flight and makes it easier to control. Features: -Package Includes: 3ch Syma S107 helicopter, Remote control with charger cable and Instruction manual. -3 channels remote for up, down, left, right, forw… |
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Religion in Human Evolution: From the Paleolithic to the Axial Age $22.97 Religion in Human Evolution is a work of extraordinary ambition—a wide-ranging, nuanced probing of our biological past to discover the kinds of lives that human beings have most often imagined were worth living. It offers what is frequently seen as a forbidden theory of the origin of religion that goes deep into evolution, especially but not exclusively cultural evolution.How did our early ance… |
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The Great Transformation: The Beginning of Our Religious Traditions $7.28 From Karen Armstrong, the bestselling author of A History of God and The Spiral Staircase, comes this extraordinary investigation of a critical moment in the evolution of religious thought.In the ninth century BCE, events in four regions of the civilized world led to the rise of religious traditions that have endured to the present day–the development of Confucianism and Daoism in China, Hinduism… |
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Buddha $5.57 Books on Buddhism may overflow the shelves, but the life story of the Buddha himself has remained obscure despite over 2,500 years of influence on millions of people around the world. In an attempt to rectify this, and to make the Buddha and Buddhism accessible to Westerners, the beloved scholar and author of such sweeping religious studies as A History of God has written a readable, sophisticated… |
