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Nucleus
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Nucleus

 

In chemistry and physics, the nucleus (atomic nucleus) is the collection of protons and neutrons in the center of an atom that carries the bulk of the atom's mass and positive charge.
  • In cell biology, the nucleus (cell nuclus) is the membrane-bound subcellular organelle found in eukaryotes, visible via microscopy, which contains, primarily, the cell's chromosomes.
  • In neuroanatomy, a nucleus is a central nervous system structure that is composed mainly of gray matter and mediates electrical signaling within a particular subsystem.
  • In comets, a nucleus (comet nucleus) is the solid core of a comet.
  • In astronomy, a nucleus (galaxy nucleus) is the central region of a galaxy.
  • In meteorology, a nucleus (ice nucleus) is the center of an ice crystal.
  • In meteorology, a nucleus (cloud condensation nuclei) is the basis for the development of a cloud droplet.
  • In linguistics, the nucleus is the center part of a syllable, most often a vowel.

  • Etymology

    "Nucleus" comes from the
    Latin for center or core.

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    Accelerated Technology, ESD Mentor Graphics
    Makes Nucleus RTOS; full source code, no royalty, preemptive, multitasking, for time-critical embedded uses; coded 95% ANSI C, very portable, runs on most processors, Nucleus micro-iPLUS has uITRON interface; code|lab IDE, Microtec C/C++ compilers, XRAY debugger and developer kit, QuickStart Kit.
    http://www.acceleratedtechnology.com/

    ATI's Nucleus RTOS Integrates with Xilinx's FPGA Soft Processor Core
    Accelerated Technology, and Xilinx, collaborate to support Xilinx MicroBlaze, industry's fastest field-programmable gate array (FPGA) based soft processor, with release of newest Nucleus RTOS. [Embedded Star]
    http://www.embeddedstar.com/press/content/2003/9/embedded10424.html

    Nucleus RTOS Integrates with USB Package
    Accelerated Technology, and MCCI integrate Nucleus RTOS and protocol stacks from Mentor Graphics with MCCI USB Data Pump firmware package for multifunction USB peripherals such as keyboards, joysticks, printers. [Embedded.com]
    http://www.embedded.com/story/OEG20030205S0046

    Mentor Graphics Corp.
    Nucleus RTOS pages at Mentor: no royalty, wide range modular products: kernels, network stack and management, internet connectivity, Java support, terminal application, C++, profiling, prototyping.
    http://www.mentor.com/nucleus/

    Insignia and Accelerated Technology Announce Licensing Agreement to Include Secure System Provisioning Client Software with the Nucleus Operating System
    Lets phones using Nucleus RTOS be repairable and upgradeable over-the-air. [EDACafe.com]
    http://www10.edacafe.com/nbc/articles/view_article.php?section=CorpNews&articleid=92008

    Accelerated Technology's Nucleus RTOS Helps Passenger Safety in Critical Testing Device for Civil Aircraft
    Used to develop Air Data Test Set (ADTS) 505 remote hand terminal, by Druck Ltd., England. Made for use in civil craft, the test set lets technicians check performance and readout of vital instruments in cockpit. [EDACafe.com]
    http://www10.edacafe.com/nbc/articles/view_article.php?section=CorpNews&articleid=92071

    Embedded Company: Accelerated Technology
    Describes firm and product (Nucleus), with related links. [Embedded Star]
    http://www.embeddedstar.com/vendors/content/a/embedded18.html

    USA Named Innovator of the Year
    Award for creating USA Research Park, first building of which is new Mentor Graphics Embedded Software Division headquarters; architectural rendering. [University of South Alabama, Press Release]
    http://www.southalabama.edu/publicrelations/pressreleases/022103.html



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