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pro vyhledávání: '"M. Schellhorn"'
Akademický článek
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Publikováno v:
Applied Clay Science. 168:36-42
The objective of using supplementary cementitious materials (SCMs) in cement is to reduce costs and the overall CO2 output of the cement production. Against the background of an increasing demand for cement and a decreasing availability of common SCM
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffcd54097cb515a175763e427fece5e2
https://doi.org/10.1016/j.clay.2018.10.015
https://doi.org/10.1016/j.clay.2018.10.015
Autor:
M. A. Medina, M. Piotrowski, M. Schellhorn, F. R. Wagner, A. Berrou, A. Hildenbrand-Dhollande
Publikováno v:
Laser Congress 2021 (ASSL,LAC).
We compared the performances of two mid-infrared non-planar ring ZGP OPO resonators, generating up to 30 W (RISTRA) and 27 W (FIRE). The beam quality is significantly improved from a value of M2 < 1.8 (RISTRA) to M2 < 1.4 (FIRE).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4df784d566fb4644760a286561a199bc
https://doi.org/10.1364/assl.2021.jm3a.11
https://doi.org/10.1364/assl.2021.jm3a.11
Publikováno v:
Applied Clay Science. 145:28-36
Clay amendments are used widely in the horticultural industry in peat-based substrates, as they have the capability to improve the potassium (K) buffering capacity. The K adsorption and desorption behavior of different clays was characterized here to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9411fbbb53ba3cc2da5f3e556da4e7e
https://doi.org/10.1016/j.clay.2017.05.013
https://doi.org/10.1016/j.clay.2017.05.013
Autor:
M. Schellhorn, G. Spindler
Publikováno v:
Laser Congress 2019 (ASSL, LAC, LS&C).
A Tm fiber laser pumped Ho:LuLiF4 (Ho:LLF) MOPA system is demonstrated delivering 68.7 W at 2065 nm in TEM00 operation at a repetition rate of 10 kHz with an optical-to-optical efficiency of 61.5 %.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad57ac32602fb8f7f1567fd64056459b
https://doi.org/10.1364/assl.2019.jth3a.18
https://doi.org/10.1364/assl.2019.jth3a.18
Akademický článek
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Publikováno v:
Acta Horticulturae. :131-138
Peat is an important growing media constituent which exposes hydrophobic properties if getting dry. The addition of clay induces a coated surface with hydro-philic properties which improves the re-wettability. The formation of an effective clay coati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b38d6e6de95b53a0674258599bef12b6
https://doi.org/10.17660/actahortic.2013.1013.14
https://doi.org/10.17660/actahortic.2013.1013.14
Autor:
M. Schellhorn
Publikováno v:
Applied Physics B. 103:777-788
Singly 0.5 at.% Ho doped crystals of YLiF4 (YLF) and LuLiF4 (LLF) are studied under identical pump conditions in continuous-wave (CW) and Q-switched operation. Longitudinal end-pumped CW laser performance shows Ho:LLF to have a slightly lower thresho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a69b1a50b593e13edbbd3cd83e2b6d4
https://doi.org/10.1007/s00340-011-4467-6
https://doi.org/10.1007/s00340-011-4467-6
Publikováno v:
Applied Physics B. 99:101-106
We developed a compact Ho:YLF oscillator–amplifier system in a novel setup to utilise the unpolarised pump power from a fibre laser efficiently, and produced 21.3 mJ at 1 kHz, with an M 2 better than 1.1. The amplified energies agreed well with the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3c22554b12cb217fb220b2f73d014f6
https://doi.org/10.1007/s00340-009-3819-y
https://doi.org/10.1007/s00340-009-3819-y
Publikováno v:
Applied Physics B. 94:195-198
A 2% Tm3+-doped LiYF4(Tm:YLF) slab is double-end-pumped by two laser diode stacks. The pumped volume has a rectangular cross section. The Tm:YLF laser produced 148 W of continuos-wave output at 1912 nm in a beam with M 2 ≈199 and M 2 ≈1.7 for 554
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b8c8fd4dea55b3aacfc91a3639a8973
https://doi.org/10.1007/s00340-008-3269-y
https://doi.org/10.1007/s00340-008-3269-y