# Open Access

Letzte Einträge:
 2017-08-1709:59 [FZJ-2017-06001] Journal Article et al TEM Analysis of Recrystallized DoubleFforged Tungsten After Exposure in JUDITH 1 and JUDITH 2 Nuclear materials and energy 9, 484 - 489 (2016) [10.1016/j.nme.2016.04.003] Five samples of recrystallized pure tungsten were exposed to transient heat loads using the electron beam of the JUDITH 1 and JUDITH 2 installations of Forschungszentrum Jülich. The heat flux and base temperature were the same for all samples; only the number of pulses and exposure device differed. [...] OpenAccess: PDF PDF (PDFA); 2017-08-1709:56 [FZJ-2017-06000] Journal Article et al Use of Tungsten Material for the ITER Divertor Nuclear materials and energy 9, 616 - 622 (2016) [10.1016/j.nme.2016.07.003] Since the ITER divertor design includes tungsten monoblocks in the vertical target where heat loads are maximal, the design to protect leading edges as well as technology R&D for high performance armor-heat sink joint were necessary to be implemented. In the R&D, the availability of the technology was demonstrated by high heat flux test of tungsten monoblock components. [...] OpenAccess: PDF PDF (PDFA); 2017-08-1709:43 [FZJ-2017-05997] Journal Article et al Creating anisotropic spin-split surface states in momentum space by molecular adsorption Physical review / B 96(8), 085403 (2017) [10.1103/PhysRevB.96.085403] In this ab initio study we demonstrate that molecular adsorption on a surface Rashba system can be used to modulate the surface electronic structure in different momentum space directions, i.e., to create anisotropic spin splittings in k space. This effect is rooted in the asymmetric adsorption of the molecules on the surface in a hollow site which breaks the surface symmetry. [...] OpenAccess: PDF PDF (PDFA); 2017-08-1708:21 [FZJ-2017-05975] Journal Article et al O-(2-[$^{18}$F]fluoroethyl)-l-tyrosine PET in gliomas: influence of data processing in different centres EJNMMI Research 7(1), 64 (2017) [10.1186/s13550-017-0316-x] BackgroundPET using O-(2-[18F]fluoroethyl)-l-tyrosine (18F-FET) is an established method for brain tumour diagnostics, but data processing varies in different centres. This study analyses the influence of methodological differences between two centres for tumour characterization with 18F-FET PET using the same PET scanner.Methodological differences between centres A and B in the evaluation of 18F-FET PET data were identified for (1) framing of PET dynamic data, (2) data reconstruction, (3) cut-off values for tumour delineation to determine tumour-to-brain ratios (TBR) and tumour volume (Tvol) and (4) ROI definition to determine time activity curves (TACs) in the tumour. [...] OpenAccess: PDF PDF (PDFA); 2017-08-1615:30 [FZJ-2017-05969] Journal Article et al Pyroglutamate-modified Aβ(3-42) affects aggregation kinetics of Aβ(1-42) by accelerating primary and secondary pathways Chemical science 8(7), 4996 - 5004 (2017) [10.1039/C6SC04797A]   The aggregation into amyloid fibrils of amyloid-β (Aβ) peptides is a hallmark of Alzheimer's disease. A variety of Aβ peptides have been discovered in vivo, with pyroglutamate-modified Aβ (pEAβ) forming a significant proportion. [...] OpenAccess: PDF PDF (PDFA); 2017-08-1512:29 [FZJ-2017-05931] Journal Article Elbern, H. Analyzing trace gas filaments in the Ex-UTLS by 4D-variational assimilation of airborne tomographic retrievals OpenAccess: PDF PDF (PDFA); 2017-08-1511:21 [FZJ-2017-05925] Journal Article Voigtmann, T. Velocity autocorrelation function in supercooled liquids: Long-time tails and anomalous shear-wave propagation Physical review / E 94(6), 060601 (R) (2016) [10.1103/PhysRevE.94.060601] Molecular dynamic simulations are performed to reveal the long-time behavior of the velocity autocorrelation function (VAF) by utilizing the finite-size effect in a Lennard-Jones binary mixture. Whereas in normal liquids the classical positive t−3/2 long-time tail is observed, we find in supercooled liquids a negative tail. [...] OpenAccess: PDF PDF (PDFA); 2017-08-1415:09 [FZJ-2017-05910] Journal Article et al Volatile organic compounds (VOCs) in photochemically aged air from the eastern and western Mediterranean Atmospheric chemistry and physics 17(15), 9547 - 9566 (2017) [10.5194/acp-17-9547-2017]   During the summertime CYPHEX campaign (CYprus PHotochemical EXperiment 2014) in the eastern Mediterranean, multiple volatile organic compounds (VOCs) were measured from a 650 m hilltop site in western Cyprus (34° 57′ N/32° 23′ E). Periodic shifts in the northerly Etesian winds resulted in the site being alternately impacted by photochemically processed emissions from western (Spain, France, Italy) and eastern (Turkey, Greece) Europe [...] OpenAccess: PDF PDF (PDFA); 2017-08-1115:02 [FZJ-2017-05889] Report/Poster (Outreach) et al Isoprene derived secondary organic aerosol in a global aerosol chemistry climate model [EGU2017-11973] EGU General Assembly 2017, EGU2017, Meeting locationVienna, Austria, 23 Apr 2017 - 28 Apr 2017 OpenAccess: PDF PDF (PDFA); 2017-08-1114:56 [FZJ-2017-05888] Journal Article et al Isoprene derived secondary organic aerosol in a global aerosol chemistry climate model EGU General Assembly 2017, EGU2017, Meeting locationVienna, Austria, 23 Apr 2017 - 28 Apr 2017 Geophysical research abstracts 19, EGU2017-11973 (2017) OpenAccess: PDF PDF (PDFA);