Zobrazeno 1 - 10
of 37
pro vyhledávání: '"W. van Erk"'
Autor:
T. P. M. Beelen, W. van Erk
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 90:1197-1206
Molecular nitrogen has been bonded on vanadium trichloride, after reduction with lithium naphthalide. During these reduction and fixation reactions several ESR-signals appeared. By measurements of signal intensities in the presence and absence of N2
Publikováno v:
Journal of Physics D: Applied Physics. 38:3040-3046
Several analytical techniques have been used to obtain a detailed mass balance of a test series of metal halide lamps, containing sodium and scandium iodide. The lamps were made to burn for 5000 h and showed appreciable sodium loss, up to 45% at the
Autor:
W. Van Erk
Publikováno v:
Pure and Applied Chemistry. 72:2159-2166
An overview is given of transport reactions and corrosion phenomena in metal halide gas discharge lamps filled with a mixture of alkali halides with scandium or rare-earth iodides. The phenomena that are discussed are: (a) pressures of light-emitting
Publikováno v:
Journal of Physics D: Applied Physics
Journal of Physics D: Applied Physics, IOP Publishing, 2011, 44 (22), pp.224001. ⟨10.1088/0022-3727/44/22/224001⟩
Journal of Physics D: Applied Physics, IOP Publishing, 2011, 44 (22), pp.224001. ⟨10.1088/0022-3727/44/22/224001⟩
Lifetime experiments show that sodium–scandium metal halide lamps perform better on very high frequency (VHF) drivers than on low frequency (LF) constant wattage autotransformer (CWA) ballasts. The question why, will be addressed with focus on arc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02f78fa50d0012dd2d9807efc03e7fe7
https://hal.archives-ouvertes.fr/hal-00620588/file/PEER_stage2_10.1088%2F0022-3727%2F44%2F22%2F224001.pdf
https://hal.archives-ouvertes.fr/hal-00620588/file/PEER_stage2_10.1088%2F0022-3727%2F44%2F22%2F224001.pdf
Publikováno v:
Journal of Small Animal Practice. 31:533-537
Canine obesity is a common condition in veterinary practice, and has been associated with a number of serious medical conditions likely to reduce the length and quality of a pet's life. Therefore, it represents an important condition for the veterina
Autor:
J.M. Robertson, W. Van Erk
Publikováno v:
Journal of Crystal Growth. 59:543-547
Experimental results on the incorporation of rare-earth ions into Y 3 Al 5 O 12 and Y 3 Fe 5 O 12 grown by liquid phase epitaxy on 〈111〉 substrates are presented. It is shown that a plot of [RE]/[Y] ratio in the solid versus [RE]/[Y] ratio in the
Publikováno v:
Journal of Crystal Growth. 48:621-634
The growth kinetics of liquid-phase epitaxy of Y 3 Fe 5 O 12 on Gd 3 Ga 5 O 12 substrates having (110), (211), (321), (100) or (111) orientation has been studied and the results are discussed in terms of simple theoretical growth models. The (111) fa
Autor:
B. van der Hoek, W. Van Erk
Publikováno v:
Journal of Crystal Growth. 58:537-544
An analysis on the kinetical processes during the epitaxial growth of garnet films is presented. On the rough {111} garnet faces the transport process consists of the diffusion of growth units through the mass transfer boundary layer and the interfac
Autor:
W. Van Erk
Publikováno v:
Journal of Crystal Growth. 57:71-83
A description is given of the growth of the mixed crystal A x B 1− x from an ideal dilute solution of A and B in F. Two steps are distinguished in the growth process: diffusion of A and B to the crystal-fluid interface and the process occuring at t
Autor:
W. Van Erk, HK Hendrik Kuiken
Publikováno v:
Journal of Crystal Growth, 51(3), 397-412. Elsevier
In the vertical dipping procedure for the LPE of garnets, the growth process will cause a horizontal concentration gradient and with that a density gradient in the fluid near the growing interface. This results in a downward flow along the wafer, mak