diameter

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Introduction to the Diameter Protocol in 3GPP Context

Diameter is an AAA (Authentication, Authorization and Accounting) protocol for applications such as network access or IP mobility. The basic concept is to provide a base protocol that can be extended in order to provide AAA services to new access technologies. Diameter is intended to work in both local and...

Tags: Concept, 3GPP, Protocol, Diameter, Diameter Protocol, AAA, Tcp/Ip, Operational Accounting, Financial Services, Security, Networking, Finance

White papers 2007-01-08

Additional Resources

600 Starbucks to close. Good Riddens!

600 Starbucks to close. Good Riddens!Good RiddanceGood riddanceZD Can't SpellIt's "riddance" not "riddens". If "riddens" was supposed to be a play on words or a joke or a reference to something having to do with coffee, I don't get it.Otherwise, since you guys write about tech, maybe use that there...

Tags: Starbucks Corp., bean, Riddens

Discussion threads 2008-07-21

Pulling money out of thin air. Or, why wind power should be a neighborly concern.

Pulling money out of thin air. Or, why wind power should be a neighborly concern.I guess the video maker is contesting that the polar ice isnt meltingntHe showing that you're dumber than dirtYou don't even realize that the ice displaces more volume than liquid water and the melting makes the...

Tags: wind energy, neighborly concern, ice, thin air

Discussion threads 2008-07-19

NASA tests fiber optic wing shape sensors

The Ikhana unmanned aircraft system has been used by NASA last year to fight wildfires from the sky and this month to provide images of current Californian wildfires to authorities. But Ikhana is also used to evaluate advanced sensing technology installed on its wings to improve its efficiency. The new...

Tags: NASA, Sensor, Aircraft, Fiber-optics, Ikhana, Fiber Optics, Aerospace & Defense, Optical Networking, Network Technology, Telecommunications, Manufacturing, Networking, Roland Piquepaille

Blog posts 2008-07-15

Giant rubber snakes to capture wave power?

UK researchers have developed a prototype of a future giant rubber tube which could catch energy from sea waves. The device, dubbed Anaconda, uses 'long sea waves to excite bulge waves which travel along the wall of a submersed rubber tube. These are then converted into flows of water passing...

Tags: Turbine, Environment, U.K., Sea Wave, Anaconda, Telecom & Utilities, Roland Piquepaille

Blog posts 2008-07-06

Canon EF-S 55-250mm f4.0-5.6 IS lens

Available for less than $300, the Canon EF-S 55-250mm f4-5.6 IS is a lightweight, affordable first or second lens to complement your entry-level or midrange digital SLR. With its 400mm-equivalent focal length, you get the reach and angle of view desirable for shooting portraits and sports, or just to bring...

Tags: Digital cameras, lens, Canon Inc., Canon EF-S

Product reviews 2008-06-27

Nikon AF-S DX 16-85mm f3.5-5.6 G ED VR lens

For those looking to go beyond what a kit lens has to offer their Nikon dSLR, there's Nikon's AF-S DX 16-85mm f3.5-5.6 G ED VR. Compatible with all Nikon DX digital SLRs including the D300, D60, and D40, there's an awful lot to decipher in its name. geekbox...

Tags: Nikon Corp., aperture

Product reviews 2008-06-11

Canon EF-S 18-55mm IS kit lens

The Canon EF-S 18-55mm IS lens adds image stabilization to the company's older kit lens, though otherwise it and its predecessor are basically the same. It's compatible with all Canon EF-S digital camera bodies, such as the EOS Rebel XSi and EOS 40D, but it won't fit on the EOS...

Tags: Digital cameras, Digital photography, Canon Inc., Canon EF-S

Product reviews 2008-06-02

Photos: Phoenix armed for testing; more landing images

After some early glitches, NASA expects to flex the robotic arm that holds the success or failure of the Phoenix Mars mission. Plus, the Mars Orbiter sent back more images of the Phoenix Lander.A couple of potential problems for the Phoenix Mars Lander project appeared to be resolved--setting the stage...

Tags: Phoenix Technologies, Photograph, DVD, Consumer Electronics, Personal Technology, Home Entertainment, CNET News.com

Image galleries 2008-05-28

Photos: Chair, engine, rotors--helicopter!

If you want to make a motorized flight without being hemmed in by a fuselage (and a jetpack isn't your style), Gennai Yanagisawa may have just the thing for you.In the 1940s, after some of the significant early technical challenges started to fade into history, helicopter enthusiasts began to tout...

Tags: Photograph, Helicopter, That', Aerospace & Defense, Manufacturing, CNET News.com

Image galleries 2008-05-27

Images: Supersize solar power

Utility-scale solar power plants--using everything from giant reflective dishes to plastic balloons--are changing the look of solar power.Parabolic troughs, one of which is shown here, have been around for 25 years, and the technology will be around for at least another 25. Parabolic troughs reflect sunlight to heat liquid carried...

Tags: Electricity, Solar Energy, Trough, Photovoltaics, Plant, mW, Solar Power Plant, Arizona Public Service, BrightSource Energy, Concentrator, Stirling Engine Systems, Infinia, It', SolFocus, What', Manufacturing, Telecom & Utilities, CNET News.com

Image galleries 2008-05-26

Report: Nvidia GTX 200 series will be one big GPU

More details on Nvidia's new GTX 200 series GPUs, which are set to launch sometime next month, courtesy of the site TGDaily. The new chip will reportedly be massive, measuring 576 square millimeters, due to the increased number of processing units and a 512-bit memory controller. All...

Tags: NVidia Corp., Series, Chip, GPU, Semiconductors, Network Technology, Hardware, Networking, John Morris

Blog posts 2008-05-21

Minimize TDMA interference with iPhone dock extender

Getting tired of the GSM interference from iPhone any time it's near a pair of speakers? Me too. It's called "TDMA Interference" and it's an unavoidable side effect of how GSM phones work. It doesn't happen with CDMA phones (i.e. Verizon), but nearly all GSM phones including...

Tags: Apple iPhone, Phone, Apple iPod, TDMA, Speaker, TDMA Interference, RadTech, Dock Extender Cable, Cellular Phones, Consumer Electronics, Personal Technology, Jason D. O\'Grady

Blog posts 2008-04-16

(Images: IBM's racetrack memory)

(Images: IBM's racetrack memory)Can you say TI Bubble Memory?This sounds a lot like the old Texas Instruments Bubble Memory chips out of the 80's. Nice idea, but speed was an issue as was electrical spikes randomizing the data.RE: (Images: IBM's racetrack memory)Hi there Global folks and especially Stuart Parkin,I think...

Tags: Transportation, Semiconductors, racetrack memory, IBM Corp., memory

Discussion threads 2008-04-11

(Photos: Australia's 5,500-mile Internet connection)

(Photos: Australia's 5,500-mile Internet connection)Physical CompressionWe see the diameter of the cable at the surface. What diameter is it when it reaches the depth of 3 miles?RE: (Photos: Australia's 5,500-mile Internet connection)Always amazes me what one will do to get High Speed Internet to have that High Speed Porn.RE:...

Tags: Network technology, cable, Internet, photograph

Discussion threads 2008-04-09

The world's biggest subsea robot

According to a newspaper of Newcastle upon Tyne, UK, companies installing subsea cables for telecommunications companies and pipelines for the oil industry have now a new tool, the UT-1 Ultra Trencher which is the world's biggest subsea robot. This beauty weighs 60 tons in the air and has a length...

Tags: Meter, U.K., UT-1 Ultra Trencher, Robots, Emerging Technologies, Roland Piquepaille

Blog posts 2008-03-21

Creative GigaWorks T40 - PC multimedia speakers

Creative offers an impressively wide range of PC, iPod, and multimedia speakers--at least 20, by our count. But we were drawn to the company's GigaWorks T40, a set of unusually tall (12.5 inches) stereo PC speakers that retail for less than $150. The slender but deep desktop speakers boast a...

Tags: DVD, PC, headphone jack, speaker grille, GigaWorks T40, speaker

Product reviews 2008-03-14

Building the 200 inch 1080p HDTV

Building the 200 inch 1080p HDTVHow much did it cost in total?George,How much did it cost you in total including the screen. And by the way can you mention the make and type of screen you used.And now for the important questions1. How long is the bulb life?2. How much...

Tags: TVs, 1080p, HDTV

Discussion threads 2008-03-12

Guitar Rig 3: Kontrol Edition

Without the Guitar Hero video game franchise, most of us would never feel the rush of turning our virtual amps up to 11, slinging our guitars below the waist, and living the fantasy of rock stardom. For those of you who actually have some skill with a real guitar, however,...

Tags: Tools & Techniques, search option, Native Instruments, Guitar Rig 3, guitar

Product reviews 2008-03-07

The Cassiterite Crisis - How Tech Boom Fuels Human Rights Risk in Africa

A disturbing article this week in the FT reports how cassiterite sourced through the use of child and slave labour has made it into the supply chains of global electronic goods manufacturers. Cassiterite is a derivative of tin ore necessarily used in circuitry and its use has, ironically, enabled...

Tags: Supply Chain, Industry, Microsoft Corp., Cassiterite, Safety Condition, Supply Chain Management (SCM), Strategy, Enterprise Software, Software, Management, James Farrar

Blog posts 2008-03-07