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Near field communication

Near field communication
A summary of near-field communication Near field communication (NFC) is a set of ideas and technology that enables smartphones and other devices to establish radio communication with each other by touching the devices together or bringing them into proximity to a distance of typically 10 cm (3.9 in) or less. Early business models such as advertising and industrial applications were not successful, having been overtaken by alternative technologies such as barcodes or UHF tags, but what distinguishes NFC is that devices are often cloud connected. All NFC-enabled smartphones can be provided with dedicated apps including 'ticket' readers as opposed to the traditional dedicated infrastructure that specifies a particular (often proprietary) standard for stock ticket, access control and payment readers. Each full NFC device can work in three modes: NFC Target; NFC Initiator; and NFC peer-to-peer: History[edit] NFC traces its roots back to radio-frequency identification, or RFID. Design[edit]

Six Sigma The common Six Sigma symbol Six Sigma is a set of techniques and tools for process improvement. It was developed by Motorola in 1986.[1][2] Jack Welch made it central to his business strategy at General Electric in 1995.[3] Today, it is used in many industrial sectors.[4] Six Sigma seeks to improve the quality of process outputs by identifying and removing the causes of defects (errors) and minimizing variability in manufacturing and business processes. It uses a set of quality management methods, mainly empirical, statistical methods, and creates a special infrastructure of people within the organization ("Champions", "Black Belts", "Green Belts", "Yellow Belts", etc.) who are experts in these methods. Each Six Sigma project carried out within an organization follows a defined sequence of steps and has quantified value targets, for example: reduce process cycle time, reduce pollution, reduce costs, increase customer satisfaction, and increase profits. Doctrine[edit] Methodologies[edit]

SMSC - NFC - Forum des services mobiles sans contact - site officiel du SMSC et NFC Latest Launch Brings China Closer to ‘GPS’ Of Its Own | Danger Room At 5:30 on Sunday morning, the Chinese government fired a Long March 3A rocket into orbit. It carried a navigation satellite — the fifth in a planned constellation of 30 or more Beidou orbiters that Beijing hopes will soon rival America’s Global Positioning System. For years, the U.S. Air Force has owned and operated the system that the rest of the world uses to find its way home, synch its financial transactions (thanks to the GPS timing service), and bring its ships to port. Enter Beidou (“Compass”), China’s GPS alternative. Sunday’s satellite makes the fifth orbiter in the Beidou constellation, and the third launched this year. Which means China can get its own satellite-guided weapons — ones that hit within feet of their target, and stay on track in any weather. “GPS has become so embedded in much of the world’s day-to-day commerce and activities, it is very unlikely that the U.S. would ever turn off the precision signal. In 2008, Moscow opened up GLONASS access to civilians.

Databaser: Ordlista Den här listan innehåller några av de termer som används inom databasområdet. Även en del saker som inte tas upp i resten av webbkursen finns med och förklaras kort. I den mån det finns allmänt spridda svenska termer (till exempel fråga för engelskans query), har de använts, men annars används de engelska termerna (till exempel commit). För svenska termer finns också den engelska termen med. Även om ordlistan nämner flera olika termer för samma sak, till exempel både den svenska och den engelska termen, är det inte säkert att båda finns som egna uppslagsord. Om man letar efter en term kan det därför vara bättre att använda webbläsarens sökfunktion (i Mozilla: klicka på Edit och välj Find in This Page, eller tryck CTRL-F) än att bläddra sig fram i bokstavsordning. En bra lista över svenska datatermer finns också hos Svenska datatermgruppen. En annan ordlista med många datatermer finns hos tidningen Computer Sweden. 1:1-samband. 1:N-samband. 1NF. 2NF. 2PC. 2PL. 3NF. 4NF. 5NF. Access.

the free encyclopedia Association Française du Sans Contact Mobile RFID Experimenters Kit RFID is an exciting new technology that is finding its way into a variety of different industries; pet identification, keyless entry, hospitals, inventory management and tracking, tollway collections, security, data collection, wildlife tracking, and much more. Now you can experiment on your own with this great starter kit. This kit includes everything needed to get started: The RedBee RFID Reader is a ground breaking first in many areas. Capable of being used as a tethered device to a PC or microcontrollers OR as a preprogrammed stand alone device it is the only hobby reader with both. The RedBee comes default with USB and TTL serial with the ability to add Xbee for wireless communitcation. RFID LoginA computer is the heart of any true tech geek lair. RFID DeadboltKeys are so 1800s man! RFID SafeNeed to hide your secret files or retrieve your pocket spy camera in a hurry? RFID RacersA great weekend project for parent and child or party entertainment for any age.

En webbkurs om databaser Av Thomas Padron-McCarthy Den här webbkursen om databaser är baserad på föreläsningar som jag har hållit i olika databaskurser. Kursen är klar, men det kan komma att ske ändringar och tillägg. En omarbetad och utvidgad version av det här materialet finns i form av en bok: Databasteknik av Thomas Padron-McCarthy och Tore Risch (Studentlitteratur, publicerad 2005, ISBN 91-44-04449-6). (This is a web course about databases. Del 1: Grunder om databaser Del 2: Lite mer avancerad användning av databaser Del 3: Ett par specifika databashanterare Del 4: Kort om några mer avancerade ämnen Referens Kursen finns på webben under adressen Om du hittar fel eller oklarheter i kursen, eller har förslag på förbättringar, vare sig det gäller faktainnehåll, urval, språk, pedagogik eller något annat, så meddela gärna författaren! Tack till alla som hjälpt till på olika sätt.

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