Results 211 to 220 of about 47,002 (250)
Nature Chemistry, 2010 A krypton difluoride coordination compound — where it acts as a ligand to a bromine atom — has been synthesized and studied.
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Atomic Weight of Krypton [PDF]
Nature, 1931 WHILE measuring the dielectric coefficient of a particularly pure sample of krypton, it occurred to me that a density determination would be of interest in view of Aston's recent statement that the accepted value of the atomic weight appeared from his measurements on the relative quantities of the isotopes to be much too low.
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Ophthalmic Surgery, Lasers and Imaging Retina, 1998
* BACKGROUND AND OBJECTIVES: Traditionally, the argon laser has been used with suture lysis. The authors evaluate the krypton laser and define the parameters for the successful use of the laser with this procedure. * PATIENTS AND METHODS: Five consecutive patients undergoing combined cataract and trabeculectomy surgery who were considered ...
Aktan Sg, Mandelkorn Rm
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* BACKGROUND AND OBJECTIVES: Traditionally, the argon laser has been used with suture lysis. The authors evaluate the krypton laser and define the parameters for the successful use of the laser with this procedure. * PATIENTS AND METHODS: Five consecutive patients undergoing combined cataract and trabeculectomy surgery who were considered ...
Aktan Sg, Mandelkorn Rm
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Characteristies of Krypton Counters
Journal of the Physical Society of Japan, 1960Solutions of dyes in CCl/sub 4/ are suitable for gamma dosimetry above 200 kev with a precision of 10 to 20%. The indicator is independent of temperatures from 20 to 60 deg C and doses of 0.6 to 200 r/min. The solutions are very stable thermally, but are sensitive to the effects of light. (tr-auth)
Tatsusaburo Suzuki +2 more
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The Journal of Chemical Physics, 2002
A new krypton-containing compound, HKrF, has been prepared in a low-temperature Kr matrix via VUV photolysis of the HF precursor and posterior thermal mobilization of H and F atoms. All three fundamental vibrations have been observed in the FTIR spectra at ∼1950 cm−1 (H–Kr stretch), ∼650 cm−1 (bending), and ∼415 cm−1 (Kr–F stretch).
Robert Benny Gerber +5 more
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A new krypton-containing compound, HKrF, has been prepared in a low-temperature Kr matrix via VUV photolysis of the HF precursor and posterior thermal mobilization of H and F atoms. All three fundamental vibrations have been observed in the FTIR spectra at ∼1950 cm−1 (H–Kr stretch), ∼650 cm−1 (bending), and ∼415 cm−1 (Kr–F stretch).
Robert Benny Gerber +5 more
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Scattering of High Velocity Neutral Particles. VI. Krypton-Krypton
The Journal of Chemical Physics, 1955Total collision cross sections have been measured for krypton atoms with energies between 700 and 2100 ev, scattered in room temperature krypton, to obtain potential energy information for the interaction of two krypton atoms. The potential function may be represented by V(r)=2.55×10−10/r5.42 ergsfor r between 2.42 A and 3.14 A.
I. Amdur, E. A. Mason
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Constricted Discharges in Krypton
Journal of the Optical Society of America, 1970Constricted discharges have been produced in krypton using both pulsed and dc excitation over a total pressure range of 8–120 torr. Light-flux, voltage, and current waveforms were obtained for the pulsed discharge and interpreted in terms of electron excitation and electron–ion recombination processes.
R. Turner, R. P. Edwin
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Mutual diffusion studies in krypton-acetone and krypton-chloroform systems
Physica, 1966Abstract Measurement of diffusion coefficient of binary mixtures of krypton with the polar gases acetone and chloroform has been carried out in a two-chamber apparatus of Ney and Armistead type in the temperature range 10° to 40°C by using radioactive 85 Kr as tracer.
A. Saran, B.N. Srivastava
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Physical Review B, 1975
Measurements by Lewis and Teegarden of the x-ray-induced luminescence of solid Kr were reanalyzed on the basis of simple rate theory. For irradiation times greater than 20 s, agreement between theory and experiment is excellent. (auth)
P. R. Couchman, C. L. Reynolds
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Measurements by Lewis and Teegarden of the x-ray-induced luminescence of solid Kr were reanalyzed on the basis of simple rate theory. For irradiation times greater than 20 s, agreement between theory and experiment is excellent. (auth)
P. R. Couchman, C. L. Reynolds
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Krypton Difluoride: Preparation and Handling
Science, 1963Krypton difluoride was prepared by irradiation of krypton and fluorine in an electron beam (1.5 Mev) at -150°C. The compound is a white crystalline solid, stable only at temperatures below about -30°C.
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