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Optical Disc Technology: An A-Z on Laser Light Storage
White Paper Audiotapes use magnetic fields to record analog information. Computer floppy and hard disks also use magnetic media, but they store data as a sequence of on and off fields, creating binary digital data. [03 Jul 2008]
A Parallel Algebraic Multigrid Preconditioner Using Algebraic Multicolor Ordering for Magnetic Finite Element Analyses
White Paper Recently, Finite Element (FE) analyses of magnetic fields have played a major role in the design of various electromagnetic machines. In the analyses, most computation time is consumed by the solution of large-scale sparse linear systems of... [19 Mar 2008]
Photos: Six unusual power sources
Photo The "WiTricity" device - the term coined by the team at the Massachusetts Institute of Technology (MIT) to describe the wireless power phenomenon - uses magnetic fields to remotely power the gadgets. Scientists are coming up with novel ways to... [19 Nov 2007]
Placement, Coordination and Tasking of Static and Mobile Sensor Networks
White Paper For example, the Mica2 "Mote" can measure temperature, humidity, pressure, visible and infrared light, sound, magnetic fields, and acceleration. Sensor networks consist of nodes that can measure characteristics of their local environment, perform... [03 Sep 2007]
Placement, Coordination and Tasking of Static and Mobile Sensor Networks
White Paper For example, the Mica2 "Mote" can measure temperature, humidity, pressure, visible and infrared light, sound, magnetic fields, and acceleration. Sensor networks consist of nodes that can measure characteristics of their local environment, perform... [13 Aug 2007]
Wireless power has techies beaming
News The MIT team's design consists of two copper coils - one attached to the power source and the other to the gadget - which respectively produce and pick up the magnetic fields. The "WiTricity" device - the term coined by the MIT team to describe the... [08 Jun 2007]
No more gadget chargers
News The proposed system uses magnetic fields that shouldn't affect humans. Electronic gadgets could soon automatically charge up when their owners wander into their home or office - without the need for cumbersome cables or chargers. [17 Nov 2006]
Single-Domain Model for Toggle MRAM
White Paper First, a simple perturbative approach is used to understand the basic phenomena at low fields, including the critical switching curve and activation energy. An overview is presented of the use of a single-domain model for developing an... [23 Mar 2006]
US moves closer to electronic ID cards
News Among the information that must be shared: all data fields printed on drivers' licences and identification cards, and complete drivers' histories, including motor vehicle violations, suspensions and points on licences. [11 Feb 2005]
Recommended Guideline to Reduce the Magnetic Susceptibility of CRT Computer Displays
White Paper Magnetic fields in the CRT assembly guide the electron beams as they scan the faceplate, and the intensity of light and color emitted from the faceplate is controlled by video signals applied to the CRT electron gun. [24 Feb 2004]
MiniDisc: A Technical White Paper
White Paper It is extremely resistant to scratches and dust, as well as relatively invulnerable to stray magnetic fields. MiniDisc is an audio storage medium which was introduced for consumer use and for professional stereo recording and playback. [24 Feb 2004]
Removable Media Storage Devices
White Paper Magnetic formats that use magnetic particles and magnetic fields. Magneto-optical and magneto-optical hybrids that use a combination of magnetic and optical properties to increase storage capacity. Requirements for removable media storage devices... [24 Feb 2004]
HTS Conductor and Magnet Technology in Magnetic and Inertial Fusion Experiments
White Paper Available high temperature superconducting tapes of BSSCO-2212 and -2223 have excellent properties at low temperatures, surpassing Nb3Sn at very high fields. High temperature superconductors have a high promise for improving the cost/performance of... [24 Feb 2004]
Near Electromagnetic Field of HF Transmitting Curtain Antennas
White Paper Based on many theoretical and experimental research data, recommendations have been proposed for the safety limits of human exposure to electromagnetic fields. An accurate determination of the near field-strength, electric as well as magnetic, in... [14 Aug 2003]
Do mobile phones fry your brain?
Comment Basically, there is a lot of it about and it comes in a dazzling range of flavours - alpha particles, beta particles, gamma rays, microwaves, electric fields, magnetic fields, UV, VLF, ELF, you name it, it's there. [17 Jul 2001]
