• Douglas M. Considine
  • Glenn D. Considine


A figure of merit of an energy-storing system equal to
$$2\pi \left( {\frac{{average\;energy\;stored}}{{energy\;dissipated\;per\;half\;cycle}}} \right)$$
which is equal to ωL/R for an inductor, where R is the equivalent series resistance. For a capacitor, Q is 1/ωCR, again the ratio of reactance to effective resistance. For a medium, Q is the ratio of displacement current density to conduction current density. The basic equation may also be expanded to include series and parallel resonant circuits, for which cases appropriate approximate equations may also be developed.


Quantum Number Control Limit Quadric Surface Defective Item Statistical Quality Control 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Additional Reading

  1. Goddard, W. A.: “Theoretical Chemistry Comes Alive: Full Partner with Experiment,” Science, 227, 917–923 (1985).CrossRefGoogle Scholar
  2. Roberts, M. W. W.: “Chemistry in Two Dimensions,” Review (University of Wales), 58 (Autumn 1987 ).Google Scholar
  3. Schaefer, H. F.: “Methylene: A Paradigm for Computational Quantum Chemistry,” Science, 231, 1100–1107 (1986).CrossRefGoogle Scholar
  4. Stucky, G. D., and J. E. MacDougall: “Quantum Confinement and Host/Guest Chemistry: Probing a New Dimension,” Science, 669 (February 9, 1990 ).Google Scholar
  5. Warren, W. S., Rabiz, H., and M. Dahleh: “Coherent Control of Quantum Dynamics: The Dream is Alive,” Science, 1581 (March 12, 1993 ).Google Scholar
  6. Wasserman, E., and H. F. Schaefer: “Letters—Methylene Geometry,” Science, 233, 829–830 (1986).CrossRefGoogle Scholar
  7. Adar, R. K.: “A Flaw in a Universal Mirror,” Sci. Amer., 50 (February 1988).Google Scholar
  8. Ahimony, A.: “The Reality of the Quantum World,” Sci. Amer., 46 (January 1988).Google Scholar
  9. Batalin, I. A., Isham, C. J., and G. A. Vileovisky, Editors: “Quantum Field Theory and Quantum Statistics,” Hilger, Bristol, U.K., 1987.Google Scholar
  10. Canright, G. S., and S. M. Girvin: “Fractional Statistics: Quantum Possibilities in Two Dimensions,” Science, 1197 (March 9, 1990 ).Google Scholar
  11. Chakaraborty, T., and P. Pietilainen: “The Fractional Quantum Hall Effect,” Springer-Verlag, New York, 1988.Google Scholar
  12. Clarke, J. et al.: “Quantum Mechanics of a Macroscopic Variable: The Phase Difference of a Josephson Junction,” Science, 992 (February 26, 1988 ).Google Scholar
  13. Cohen-Tannoudii, C., Dupont-Roc, J., and G. Grynberg: “Photons and Atoms: Quantum Electrodynamics,” Wiley, New York, 1989.Google Scholar
  14. Davies, P., Editor: “The New Physics,” Cambridge University Press, New York, 1989.Google Scholar
  15. Eisenstein, J. E, and H. L. Stormer: “The Fractional Quantum Hall Effect,” Science, 1510 (June 22, 1990 ).Google Scholar
  16. Ellis, P. M., and Y. C. Tang, Editors: “Trends in Theoretical Physics,” Addison—Wesley, Redwood City, California, 1990.Google Scholar
  17. Freedman, D. H.: “A Chaotic Cat Takes a Swipe at Quantum Mechanics,” Science, 626 (August 9, 1991 ).Google Scholar
  18. Imry, Y., and R. A. Webb: “Quantum Interference and the Aharonov-Bohm Effect,” Sci. Amer., 56 (April 1989).Google Scholar
  19. Penrose, R., and C. J. Isham, Editors: “Quantum Concepts in Space and Time,” Oxford University Press, New York, 1986.Google Scholar
  20. Pool, R, R.: “Quantum Chaos: Enigma Wrapped in a Mystery,” Science, 803 (February 17, 1989 ).Google Scholar
  21. Powell, C. S.: “Can’t Get There from Here: Quantum Physics Puts a New Twist on Zeno’s Paradox,” Sci. Amer., 24 (May 1990).Google Scholar
  22. Ruthen, R.: “Quantum Pinball: A Quantum System Can Be Observed Without an Observer,” Sci. Amer., 36 (November 1991).Google Scholar
  23. Trefil, J.: “Quantum Physics’ World,” Smithsonian, 66 (August 1987).Google Scholar
  24. Waldrop, M. M.: “Viewing the Universe as a Coat of Chain Mail: New Calcula-Google Scholar
  25. tions Have Pointed the Way to Quantum Gravity and Suggested a Novel Structure for the Sub-sub-Microscopic World,“ Science 1510 (December 14, 1990).Google Scholar
  26. Appenzeller, T, T.: “Latest Quarry in the Quasar Quest,” Science, 1094 (September 6, 1991 ).Google Scholar
  27. Courvoisier, T., and E. Robson: “The Quasar 3C 273,” Sci. Amer., 50 (June 1991).Google Scholar
  28. Cowen, R, R.: “Enigmas of the Sky: Partners or Strangers?” Science News, 181 (March 24, 1990 ).Google Scholar
  29. Cowen, R, R.: “Quasar Erupts with Relativistic Flair,” Science News, 39 (January 19, 1991 ).Google Scholar
  30. Crawford, M. H.: “The Abnormally Normal Quasar,” Science, 1116 (December 1, 1989 ).Google Scholar
  31. Horgan, J.: “Points of View: Quasars and Radio Galaxies May Be Two of a Kind,” Sci. Amer., 20 (April 1989).Google Scholar
  32. Peterson, I, I.: “Quasar Light Points to Younger Galaxies,” Science News, 389 (June 23, 1990 ).Google Scholar
  33. Rees, M. J.: “Dead Quasars in Nearby Galaxies?” Science, 817 (February 16, 1990 ).Google Scholar
  34. Sanders, D. B., Scoville, N. Z., and B. T. Soifer: “The Birth of a Quasar?” Science, 625 (January 29, 1988 ).Google Scholar
  35. Williams, S, S.: “Twin Quasars Found,” Science, 1179 (March 9, 1990 ).Google Scholar

Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • Douglas M. Considine
  • Glenn D. Considine

There are no affiliations available

Personalised recommendations