Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Hartmut Schneidenbach"'
Publikováno v:
Journal of Physics D: Applied Physics. 40:7402-7411
The temperature determination by spectroscopic measurements in high-current high-pressure arcs in a polytetrafluoroethylene (PTFE) nozzle under the assumption of an optically thin plasma has been investigated. Assuming local thermodynamic equilibrium
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b70138df3cdd7994d0b6a9965bfdfe8
https://doi.org/10.1088/0022-3727/40/23/022
https://doi.org/10.1088/0022-3727/40/23/022
Publikováno v:
Journal of Physics D: Applied Physics. 40:3829-3835
In the context of developing a mercury-free lamp for automotive lighting an optimization of lamp design and plasma radiation was performed. In contrast to existing quartz lamps, a new lamp design was chosen consisting of a sapphire capillary combined
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::293ea2c4fa8fcec00f657e5f8610dc9b
https://doi.org/10.1088/0022-3727/40/13/s03
https://doi.org/10.1088/0022-3727/40/13/s03
Autor:
R. Methling, M. Kaning, B Schalk, St. Franke, Heinz Schöpp, H. Hess, Hartmut Schneidenbach, L. Hitzschke
Publikováno v:
Journal of Physics D: Applied Physics. 40:3836-3841
A mercury-free high-pressure discharge in a quartz vessel is investigated which achieves a high luminous efficacy of more than 90 lm W−1 and a good colour rendering index of more than 70. It is shown that the favourable properties are achieved by a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eec37495b4cc3534b80649c22115e2f0
https://doi.org/10.1088/0022-3727/40/13/s04
https://doi.org/10.1088/0022-3727/40/13/s04
Publikováno v:
Journal of Physics D: Applied Physics. 40:3815-3822
The molecular continuum radiation of high intensity discharges (HID) containing the rare-earth iodides TmI3, HoI3 and DyI3 in quartz burners have been investigated. For the case of TmI3 a more detailed analysis has been performed. Two main molecular
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef2eeebd25fd40774e48d641e96934fc
https://doi.org/10.1088/0022-3727/40/13/s01
https://doi.org/10.1088/0022-3727/40/13/s01
Autor:
Oliver Langenscheidt, Ralf Methling, Steffen Franke, Heinz Schoepp, Hartmut Schneidenbach, Helmut Hess
Publikováno v:
LEUKOS. 3:217-227
High-intensity discharge lamps (HID lamps) cover a wide range of applications. However, HID lamps contain mercury. For lower environmental pollution mercury-free HID lamps are under investigation. This article reports experimental results substitutin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0cabade83010d7f6210a4274c44308d
https://doi.org/10.1582/leukos.2007.03.03.004
https://doi.org/10.1582/leukos.2007.03.03.004
Publikováno v:
Physica Scripta. 66:89-93
As is confirmed experimentally, the liquid-gas critical points of heavy alkali metals attached to the percolation threshold of electron shells obey to a scaling with the atom ionization potential. For light alkali metals, a cell model which yields a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eeb8c4948fa99c16f7e275dfddd1aae9
https://doi.org/10.1238/physica.regular.066a00089
https://doi.org/10.1238/physica.regular.066a00089
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 277:293-311
The interaction energy of virtual atoms overlapping by the classically accessible spheres of partially free valence electrons has been calculated at typical conditions of the critical points of metallic fluids. The distance of maximum approach of ato
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43be129cd8d065bd19d6620cab28fbc2
https://doi.org/10.1016/s0378-4371(99)00484-7
https://doi.org/10.1016/s0378-4371(99)00484-7
Publikováno v:
Physics and Chemistry of Liquids. 37:719-733
For most metals the two phases of the liquid-gas transition are metallic in a region around the critical point. A method for determining the critical data of expanded liquid metals under such conditions has been published recently. Mercury, however,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb47c75d926e65c194321214716b98a8
https://doi.org/10.1080/00319109908035950
https://doi.org/10.1080/00319109908035950
Publikováno v:
High Temperatures-High Pressures. 29:215-219
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbe90c3b0aa7266c590003d1aac36f34
https://doi.org/10.1068/htec105
https://doi.org/10.1068/htec105
Publikováno v:
Physica Scripta. 54:644-650
For a virtual atomic structure of expanded metals near the metal-nonmetal transition point the interatomic interaction energy has been calculated. An atomic cell model has been developed describing atoms in percolation clusters. The pseudowave equati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::440153cb066c2021a9b8e8f447bc90d1
https://doi.org/10.1088/0031-8949/54/6/016
https://doi.org/10.1088/0031-8949/54/6/016