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Kilokaiser
The Kaiser (K) is a unit of energy. A common form is kiloKaiser (kK). 1 kK = 1000 cm−1. ( cm−1, wavenumber or inverse wavelength.) This unit is most commonly used with respect to energy transitions between electronic states in inorganic complexes. See also *Wavenumber Kilokaiser is a common but incorrect spelling of the unit KiloKayser, which equals 1000 wavenumber (cm−1). The unit is named after Heinrich Gustav Johannes Kayser (16 March 1853 – 14 October 1940), a German physicist. References *Suzanne Scarlata, Scarlata, Suzanne; Rakesh Gupta; et al. Biochemistry, Vol. 35, No. 47, 1996 *Fuguet, Elisabet; Carla Ráfols; et al. Langmuir, Vol. 19, No. 1, 2003 *Douglas, Bodie; Darl McDaniel; and John Alexander. Concepts and Models of Inorganic Chemistry. 3rd ed. John Wiley & Sons, Inc. New York. 1994. Units of energy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unit Of Energy
Energy is defined via work, so the SI unit of energy is the same as the unit of work – the joule (J), named in honour of James Prescott Joule and his experiments on the mechanical equivalent of heat. In slightly more fundamental terms, is equal to 1 newton metre and, in terms of SI base units :1\ \mathrm = 1\ \mathrm \left( \frac \right ) ^ 2 = 1\ \frac An energy unit that is used in atomic physics, particle physics and high energy physics is the electronvolt (eV). One eV is equivalent to . In spectroscopy the unit cm−1 ≈ is used to represent energy since energy is inversely proportional to wavelength from the equation E = h \nu = h c/\lambda . In discussions of energy production and consumption, the units barrel of oil equivalent and ton of oil equivalent are often used. British imperial / US customary units The British imperial units and U.S. customary units for both energy and work include the foot-pound force (1.3558 J), the British thermal u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wavenumber
In the physical sciences, the wavenumber (also wave number or repetency) is the ''spatial frequency'' of a wave, measured in cycles per unit distance (ordinary wavenumber) or radians per unit distance (angular wavenumber). It is analogous to temporal frequency, which is defined as the number of wave cycles per unit time (''ordinary frequency'') or radians per unit time (''angular frequency''). In multidimensional systems, the wavenumber is the magnitude of the ''wave vector''. The space of wave vectors is called ''reciprocal space''. Wave numbers and wave vectors play an essential role in optics and the physics of wave scattering, such as X-ray diffraction, neutron diffraction, electron diffraction, and elementary particle physics. For quantum mechanical waves, the wavenumber multiplied by the reduced Planck's constant is the ''canonical momentum''. Wavenumber can be used to specify quantities other than spatial frequency. For example, in optical spectroscopy, it is often used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wavelength
In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats. It is the distance between consecutive corresponding points of the same phase on the wave, such as two adjacent crests, troughs, or zero crossings, and is a characteristic of both traveling waves and standing waves, as well as other spatial wave patterns. The inverse of the wavelength is called the spatial frequency. Wavelength is commonly designated by the Greek letter ''lambda'' (λ). The term ''wavelength'' is also sometimes applied to modulated waves, and to the sinusoidal envelopes of modulated waves or waves formed by interference of several sinusoids. Assuming a sinusoidal wave moving at a fixed wave speed, wavelength is inversely proportional to frequency of the wave: waves with higher frequencies have shorter wavelengths, and lower frequencies have longer wavelengths. Wavelength depends on the medium (for example, vacuum, air, or water) that a wav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wavenumber
In the physical sciences, the wavenumber (also wave number or repetency) is the ''spatial frequency'' of a wave, measured in cycles per unit distance (ordinary wavenumber) or radians per unit distance (angular wavenumber). It is analogous to temporal frequency, which is defined as the number of wave cycles per unit time (''ordinary frequency'') or radians per unit time (''angular frequency''). In multidimensional systems, the wavenumber is the magnitude of the ''wave vector''. The space of wave vectors is called ''reciprocal space''. Wave numbers and wave vectors play an essential role in optics and the physics of wave scattering, such as X-ray diffraction, neutron diffraction, electron diffraction, and elementary particle physics. For quantum mechanical waves, the wavenumber multiplied by the reduced Planck's constant is the ''canonical momentum''. Wavenumber can be used to specify quantities other than spatial frequency. For example, in optical spectroscopy, it is often used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinrich Gustav Johannes Kayser
Heinrich Gustav Johannes Kayser ForMemRS (; 16 March 1853 – 14 October 1940) was a German physicist and spectroscopist. Biography Kayser was born at Bingen am Rhein. Kayser's early work was concerned with the characteristics of acoustic waves. He discovered the occurrence of helium in the Earth's atmosphere in 1868 during a solar eclipse when he detected a new spectral line in the solar spectrum. In 1881 Kayser coined the word “ adsorption”. Together with Carl Runge, he examined the spectra of chemical elements. In 1905, he wrote a paper on electron theory.Kayser, Heinrich. (1905). Die elektronentheorie. DC Heath & Company. The kayser unit, associated with wavenumber, of the CGS system was named after him. He died at Bonn in 1940. Works * ''Lehrbuch der Physik für Studierende'' . Enke, Stuttgart 3rd ed. 190Digital editionby the University and State Library Düsseldorf The University and State Library Düsseldorf (german: Universitäts- und Landesbibli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suzanne Scarlata
Suzanne Frances Scarlata is the Richard Whitcomb Professor at Worcester Polytechnic Institute. She is known for her work on how cells respond to hormones and neurotransmitters. She is an elected fellow of the American Association for the Advancement of Science. Education and career Scarlata grew up in Philadelphia and received a B.A. from Temple University in 1979. She went on to earn her Ph.D. from the University of Illinois, Urbana-Champaign. After her Ph.D. she accepted a position at AT&T Bell Laboratories where she worked on methods for testing circuit boards. She then moved to New York City where she worked at Cornell University Medical College. In 1991 she moved to Stony Brook University where she remained for 24 years. In 2016 she moved to Worcester Polytechnic Institute where, as of 2022, she is the Richard Whitcomb Professor of Chemistry and Biochemistry. In 2016, Scarlata was elected president of the Biophysical Society. Research In her own words, Scarlata is " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
