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Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

Power Transmission

Gear drives, bearings, motors, clutches, couplings, machine controls, sensors and components.

NASA Tech Briefs

Innovations developed by NASA and its industry partners in a wide array of fields.

Intro to Injection Molding

Provides a basic understanding of plastic injection molding presses, processes, and costs.

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Name Symbol Category Equivalent SI Base Units
becquerel Bq radioactivity 1/s
coulomb C quantity of electricity, electric charge A-s
farad F electric capacitance A2-s4/kg-m2
gray Gy absorbed dose of radiation, kerma m2/s2
henry H electric inductance kg-m2/A2-s2
hertz Hz frequency 1/s
joule J energy, work, heat kg-m2/s2
lumen lm luminous flux cd-sr
lux lx illuminance cd-sr/m2
newton N force kg-m/s2
ohm Ω electric resistance kg-m2/A2-s3
pascal Pa pressure, stress kg/m-s2
poiseuille Po dynamic viscosity, absolute viscosity kg/m-s
siemens S electric conductance A2-s3/kg-m2
sievert Sv dose equivalent, dose equivalent index m2/s2
tesla T magnetic field kg/A-s2
volt V electric potential, electromotive force kg-m2/A-s3
watt W power, radiant flux kg-m2/s3
weber Wb induction magnetic flux kg-m2/A-s2


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