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  • Formulas for Calculating Flow Rate from a Vessel (.pdf)
    The following formulas are for calculating the rate at which a fluid will flow from a tank when the fluid level is maintained constant (h is constant). The discharge coefficient Cd depends on the configuration of the outlet. Some typical values for discharge coefficient are shown below.
  • Battery Backup Alternative
    Supercapacitors voltage characteristics are of primary concern in this application. Supercapacitors have a capacitive and resistive component that directly affect the voltage charge/discharge rate of the capacitors.
  • Selecting the Optimal Battery for your Embedded Application
    embedded system, including: energy capacity, terminal voltage, physical dimensions, self-discharge rate, power-delivery requirements, etc.
  • Addressing Feeding Performance
    to individual feeder accuracy. Feeder accuracy is gauged by three distinct performance statistics: repeatability, linearity and stability. Repeatability measures the consistency of the feeder's discharge rate; linearity assesses the accuracy with which the feeder discharges at the requested rate
  • Tadiran Industrial Grade LiSOCL2 Batteries: High Energy Cells that Age Gracefully
    Tadiran bobbin-type lithium thionyl chloride (LiSOCl2) batteries feature a very low self-discharge rate of just 0.7 percent per year, enabling these cells to operate for up to 40 years in extreme environments. In order to make the best engineering decisions you have to think critically and quickly
  • Medical Device Link . Top Products and Services of the Year: Reader's Choice (continued)
    for use in medical OEM applications. The nontoxic, recyclable, and quick-charging units are designed to work with the user's existing nickel-cadmium chargers. Also available are custom cells modified to suit specific requirements regarding self-discharge, capacity, discharge rate, cycle life
  • Top Trends Impacting Design Engineers, part 1
    . Lithium-ion batteries have begun to replace nickel-based chemistries such as nickel-cadmium and nickel-metal-hydride in cell phones and notebook computers. The reason: Lithium-ion cells have a low self-discharge rate, a big limitation of nickel-based batteries. Looking past lithium-ion power, Lithium-polymer
  • Lithium battery signals end-of-life
    batteries also have a higher A-hr capacity (19 A-hr for the D-size cell versus 7 A-hr for other lithium batteries), a 1% per year self-discharge rate, an

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