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Symbol for photon, and represents photon energy, where h = Planck's constant and ν = frequency of electromagnetic wave.
References in periodicals archive ?
1-10 (holotype female and 2 paratype females from Guangxi, China, deposited in HNU, not examined); Chen et al.
Therese Hipple, marketing manager for HNU Systems, Newton, MA, says the company's new Windows-based image acquisition and analysis system "gives you electronic imaging and x-ray, at the price of just one.
I ran out to my lab, and in about 10 minutes I proved to myself that it would work down to parts per million in water," says Hanby, who is the technical director at HNU Systems Inc.
Painting work of main kitchen and HNU corridor) at AIIMS.