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  • Laser Scanner Measures Package Dimensional Weight
    Solana Beach, Calif., have developed Defined Imaging and Multiple Measurement (DIMM), a 3D laser-imager for static dimming -- the process of measuring packages moved by skids. When scanning up to four packages, DIMM calculates a length, width, and height reading for each package, along with its
  • Controlling Consumers' Expectations of LED Lighting: Why Dimming is So Important
    Controlling consumers' expectations of LED lighting: why dimming is so important. Manufacturers of LED lighting products need to consider the control options for their products and understand the applications in which their products will be used, say Chris Salvestrini and Amanda Beebe. The US
  • Dimming Power LEDs Using a SEPIC Converter and MCP1631 PIC Attach PWM Controller (.pdf)
    Programmable Current Source Reference Design. A Microchip MCP1631 PWM controller and a low-cost PIC16F616 microcontroller are used to manage a SEPIC (Single Ended Primary Inductive Converter) powertrain. The SEPIC topology is then used to drive and dim Light Emitting Diodes (LEDs).
  • Hubble Rules Out a Leading Explanation for Dark Matter
    Two teams of astronomers, working independently with NASA's Hubble Space Telescope (HST), have ruled out the possibility that red dwarf stars constitute the invisible matter, called dark matter, believed to account for more than 90 percent of the mass of the universe. Until now, the dim, small
  • Hubble Finds Mysterious Ring Structure around Supernova 1987a
    or particles, like a spinning light- show laser beam tracing circles on a screen. The source of the radiation might be a previously unknown stellar remnant that is a binary companion to the star that exploded in 1987. Images taken by Hubble show a dim object in the position of the suspected source
  • UC Santa Cruz: New Dwarf Galaxies
    and chemical compositions of the stars in the two dwarf galaxies. Studying these relatively small, dim galaxies provides valuable information about the Local Group of galaxies and contributes to astronomers' understanding of how galaxies evolve.
  • Hubble Space Telescope Finds a Double Nucleus in the Andromeda Galaxy
    possibility is that dust might dim the core to create the illusion of a pair of separate star clusters. "The Hubble images intensify the mystery of what's happening in the center of this galaxy, " says Lauer. "Neither interpretation offers a complete explanation of the M31 nuclear structure. " The double
  • Hint of Planet-Sized Drifters Bewilders Hubble Scientists
    to cause these events are far too dim to be seen directly, but instead were detected by the way their gravitational field amplifies light from a distant background star in the huge central bulge of our galaxy. Microlensing has been used before to

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