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963 Aktuelle Fachpublikationen zum Thema Helium

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Entropy, Vol. 20, Pages 451: Atom-Diffraction from Surfaces with Defects: A Fermatian, Newtonian and Bohmian Joint View

09.06.2018 | Sanz, Ángel S., Entropy, 2018

Entropy, Vol. 20, Pages 451: Atom-Diffraction from Surfaces with Defects: A Fermatian, Newtonian and Bohmian Joint View Entropy doi: 10.3390/e20060451 Authors: Ángel S. Sanz Bohmian mechanics, widely known within the field of the quantum foundations, has been a quite useful resource ...

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Multifunctional luminescent magnetic cryocooler in a Gd5Mn2 pyramidal complex

01.06.2018 | Wei Huang; Shuaidan Huang; Ming Zhang; Yancong Chen; Gui-Lin Zhuang; Yao Li; Ming-Liang Tong; Juan Yong; Yujie Li; D ..., Chemical Communication, 2018

Magnetic cooling is a highly efficient refrigeration technique with the potential of replacing expensive and rare helium-3 in the field of ultra-low temperature cooling. However, the visualization of a cryogen at an extremely low temperature and in a strong magnetic field is challenging, but it ...

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Multifunctional luminescent magnetic cryocooler in a Gd5Mn2 pyramidal complex

01.06.2018 | Wei Huang; Shuaidan Huang; Ming Zhang; Yancong Chen; Gui-Lin Zhuang; Yao Li; Ming-Liang Tong; Juan Yong; Yujie Li; D ..., Chemical Communication, 2018

Magnetic cooling is a highly efficient refrigeration technique with the potential of replacing expensive and rare helium-3 in the field of ultra-low temperature cooling. However, the visualization of a cryogen at an extremely low temperature and in a strong magnetic field is challenging, but it ...

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Collisional relaxation kinetics for ortho and para NH2- under photodetachment in cold ion traps

29.05.2018 | Francesco Antonio Gianturco; Olga Y. Lakhmanskaya; Mario Hernandez-Vera; Ersin Yurtsever; Roland Wester, Faraday Discussions, 2018

The collisional cooling of the internal rotational states of the nonlinear anion NH2- (1A1), occurring at the low temperature of a cold ion trap under helium buffer gas cooling, is examined via quantum dynamics calculations and ion decay rate measurements. The calculations employ a novel ab ...

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The adsorption of helium atoms on small cationic gold clusters

28.05.2018 | Marcelo Goulart; Michael Gatchell; Lorenz Kranabetter; Martin Kuhn; Paul Martini; Norbert Gitzl; Manuel Rainer; Joha ..., Physical Chemistry Chemical Physics, 2018

Adducts formed between small gold cluster cations and helium atoms are reported for the first time. These binary ions, Aun+Hem, were produced by electron ionization of helium nanodroplets doped with neutral gold clusters and were detected using mass spectrometry. For a given value of n, the ...

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Complexes of gold and imidazole formed in helium nanodroplets

23.05.2018 | Michael Gatchell; Marcelo Goulart; Lorenz Kranabetter; Martin Kuhn; Paul Martini; Bilal Rasul; Paul Scheier, Physical Chemistry Chemical Physics, 2018

We have studied complexes of gold atoms and imidazole (C3N2H4, abbreviated Im) produced in helium nanodroplets. Following the ionization of the doped droplets we detect a broad range of different AumImn+ complexes, however we find that for specific values of m certain n are “magic” and thus ...

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Materials, Vol. 11, Pages 718: Manufacturing Technology of Ceramic Pebbles for Breeding Blanket

02.05.2018 | Lo Frano, Rosa ; Puccini, Monica ; Stefanelli, Eleonora ; Del Serra, Daniele ; Malquori, Stefano, Materials, 2018

Materials, Vol. 11, Pages 718: Manufacturing Technology of Ceramic Pebbles for Breeding Blanket Materials doi: 10.3390/ma11050718 Authors: Rosa Lo Frano Monica Puccini Eleonora Stefanelli Daniele Del Serra Stefano Malquori An open issue for the fusion power reactor is the ...

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IJMS, Vol. 19, Pages 1247: Detrimental Effects of Helium Ion Irradiation on Cognitive Performance and Cortical Levels of MAP-2 in B6D2F1 Mice

20.04.2018 | Raber, Jacob ; Torres, Eileen Ruth S.; Akinyeke, Tunde ; Lee, Joanne ; Weber Boutros, Sydney J.; Turker, Mitchell ..., International Journal of Molecular Sciences, 2018

IJMS, Vol. 19, Pages 1247: Detrimental Effects of Helium Ion Irradiation on Cognitive Performance and Cortical Levels of MAP-2 in B6D2F1 Mice International Journal of Molecular Sciences doi: 10.3390/ijms19041247 Authors: Jacob Raber Eileen Ruth S. Torres Tunde Akinyeke Joanne ...

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Specific heat capacities and flow resistance of an activated carbon with adsorbed helium as a regenerator material in refrigerators

15.04.2018 | Author(s): Liu-biao Chen, Chun-hui Kong, Xian-lin Wu, Yuan Zhou, Jun-jie Wang, New Carbon Materials, 2018

Publication date: February 2018 Source:New Carbon Materials, Volume 33, Issue 1 Author(s): Liu-biao Chen, Chun-hui Kong, Xian-lin Wu, Yuan Zhou, Jun-jie Wang An ideal regenerator material is characterized by a high specific heat capacity and a low flow resistance, and the specific ...

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Photoabsorption spectra of small HeN+ clusters (N=3,4,10). A quantum Monte Carlo modeling

15.04.2018 | Author(s): Rajko Ćosić, František Karlický, René Kalus, Chemical Physics Letters, 2018

Publication date: 16 May 2018 Source:Chemical Physics Letters, Volume 700 Author(s): Rajko Ćosić, František Karlický, René Kalus Photoabsorption cross-sections have been calculated for He N + clusters of selected sizes ( N = 3 , 4 , 10 ) over a broad range of photon ...

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