A5072847881- Nuclear physics research studies
- Atomic and Molecular Physics
- Astronomical and nuclear sciences
- Nuclear Physics and Applications
- Quantum Chromodynamics and Particle Interactions
- Advanced Chemical Physics Studies
- Polyoxometalates: Synthesis and Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Neutrino Physics Research
- Orthopaedic implants and arthroplasty
- Advanced materials and composites
- Particle physics theoretical and experimental studies
- High-Temperature Coating Behaviors
- Metal and Thin Film Mechanics
- X-ray Spectroscopy and Fluorescence Analysis
- Advanced NMR Techniques and Applications
- Particle accelerators and beam dynamics
- High voltage insulation and dielectric phenomena
- Dielectric materials and actuators
- Rare-earth and actinide compounds
- Radioactive Decay and Measurement Techniques
- Superconducting Materials and Applications
- Diamond and Carbon-based Materials Research
- Bone Tissue Engineering Materials
- Nanocluster Synthesis and Applications
Otto-von-Guericke University Magdeburg
2012-2024
Orthopädische Universitätsklinik
2024
Federal Office for Radiation Protection
2011-2023
University Hospital Magdeburg
2023
Siemens (Germany)
2004-2021
University of Notre Dame
1997-2019
Research Association for Combustion Engines
2000-2019
Federal Institute For Materials Research and Testing
1999-2013
GSI Helmholtz Centre for Heavy Ion Research
2000-2011
Forschungszentrum Jülich
2002-2006
The compounds Cs12[VIV18O42(H2O)]·14H2O (1a), K12[VIV18O42(H2O)]·16H2O (1b), Rb12[VIV18O42(H2O)]·19H2O (1c), K9[H3VIV18O42(H2O)]·14H2O·4N2H4 (1d), K11[H2VIV18O42(Cl)]·13H2O·2N2H4 (2a), K9[H4VIV18O42(Br)]·14H2O·4N2H4 (2b), K9[H4VIV18O42(I)]·14H2O·4N2H4 (2c), K10[H3VIV18O42(Br)]·13H2O·0.5N2H4 (2d), K9[H4VIV18O42(NO2)]·14 H2O·4N2H4 (3), Cs11[H2VIV18O42(SH)]·12H2O (4), K10[HVIV16VV2O42(Cl)]·16H2O (5a), Cs9[H2VIV16VV2O42(Br)]·12H2O (5b), K10[HVIV16VV2O42(Br)]·16H2O (5c),...
The vanadium atoms in the title anion form a spherical shell— "bulged" by As2O5 groups —around an enclosed H2O molecule. This was revealed X-ray structure analysis of salt K6[As6V15O42(H2O)]ṁ8 H2O. compound is very readily formed and crystallizes large, brown rhombohedra.
Negatively charged ions with significantly different radii, e.g. Cl⊖, Br⊖ and I⊖, can be encapsulated as guest molecules in VO-cluster shells such {V18O42} 1. According to X-ray structure analyses the are fixed center of 1 surrounded by 18 V atoms 24 O atoms. The distance from cluster periphery is on average 367.5 375.0 pm, resp. (V = black, white).
The levels in $^{74,76}\mathrm{Kr}$ were studied with in-beam $\ensuremath{\gamma}$-spectroscopy techniques and the ${\ensuremath{\beta}}^{+}$ decay of $^{76}\mathrm{Rb}$. energies ${2}_{1}^{+}$ states deviate from smooth behavior compared higher spin levels. yrast cascade $B(E2)$'s are highly collective. ground have unusually large deformation. origin this deformation shape coexistence region is described terms protons driving
An ellipsoid shell consisting of 30 linked tetragonal VO5, pyramids surrounding a distorted {V4O4}O4 cube-this is one way to describe the title compound (right: solid circles, V; empty O). This cluster not only topological interest, however. Its magnetic properties make it molecular model monoclinic and VO2 phase. If structure roughly regarded as cubic close packing oxygen atoms with vanadium occupying octahedral holes, then its relationship clear.
Abstract Die neuartigen Verbindungen Na 6 [V 18 O 42 H 9 (VO 4 )] s· 21 2 O, (NH ) 8 (SO · 25 K 15 As (H O)] 14 3 )],(NH )], und [N(CH ] wurden dargestellt durch IR‐, UV/Vis/NIR‐Spektroskopie, magnetische Messungen sowie vollständige Kristallstruktur‐analyse charakterisiert. O: Raumgruppe Cc, a = 2048,8(9) pm, b 1507,3(7) c 1893,6(8) β 97,64(3)°, V 5796(4) 10 pm , Z 4, R 0,074 für 4689 unabhängige Reflexe (F 0 > 3,92 σ )). I m, 1560,0(4) 3797(2) 2, 0,046 537 c, 1402,9(4) α 79,26(2)°,...
A core-excited Iπ=(12+) spin-gap isomer was identified in Cd98 an experiment at EUROBALL IV. It found to feed the known Iπ=(8+) seniority by E4 transition. Half-lives of T1∕2=0.23(+4−3)μs and 0.17(+6−4)μs were measured for two states Ex=6635keV 2428keV, respectively. From excitation energy a Sn100 shell gap 6.46(15)MeV is inferred. The E2 strengths, core excitations origin empirical polarization charges are discussed framework large-scale model calculations. An charge protons δeπ<0.4e found,...
Periprosthetic joint infections (PJI) are a common reason for orthopedic revision surgeries. It has been shown that the silver surface modification of titanium alloy (Ti–6Al–4V) by PMEDM (powder mixed electrical discharge machining) exhibits an antibacterial effect on Staphylococcus spp. adhesion. Whether thickness silver-modified influences adhesion and proliferation bacteria as well ossification processes in-vivo capacity not investigated before. Therefore, aim this work is to investigate...
A systematic study of the population probabilities microsecond isomers produced following fragmentation ${}^{208}\mathrm{Pb}$ projectiles at 1 GeV/nucleon has been undertaken SIS/FRS facility GSI Darmstadt. Gamma decays from approximately 20 isomeric states, mainly in rare-earth and transitional nuclei with $A\ensuremath{\sim}180,$ were identified corresponding ratios deduced. The results are compared a model based on statistical abrasion-ablation description relativistic simple assumptions...
The mixed valence anion of 1 consists two partly spherically shaped units bound by four bridges and each containing an AsMo9 Keg-gin fragment with attached ring three AsO3- MoO6-polyhedra (right). anions 2 3, the products mild oxidative degradation 1, are β- α-Keggin type, respectively, contain, in addition, spherical fragment.
Negativ geladene Ionen mit signifikant unterschiedlichen Radien , z. B. Cl ⊖ Br und I können als Gastmoleküle in V‐O‐Clusterschalen wie {V 18 O 42 } 1 (V = schwarz, weiß) eingeschlossen werden. Nach Röntgenstrukturanalysen sind die eingeschlossenen im Zentrum von fixiert V‐sowie 24 O‐Atomen umgeben. Der Abstand vom des Clusters zu den O‐ V‐Atomen der Peripherie beträgt Mittel 367.5 bzw. 375.0 pm. magnified image
We have observed direct one-proton decay of the (21+) isomer in N=Z nuclide 94Ag into high-spin states 93Pd by detecting protons coincidence with gamma-gamma correlations and applying gamma gates based on known levels. Two branches been identified, proton energies 0.79(3) 1.01(3) MeV branching ratios 1.9(5)% 2.2(4)%, respectively. The corresponding partial half-life values are 21(6) 18(4) s. Q value was found to be 5.78(3) MeV. very small reduced widths decays might reflect dominating...
A surprisingly low VIV/VV ratio is present in the cluster anion of 1. Its structure (picture right; V black, As shaded, O open circles) may be described as a {AsV12O38} unit with Oh symmetry. It formed from twelve VO6 octahedra sharing edges, which each also share face central AsO6 octahedron. Two additional VO groups cap
The mixed valence compounds [NHEt3]2[NH2Me2][V12As8O40(HCO2)]·2H2O 1 and Na5[V12As8O40(HCO2)]·18H2O 2 containing isostructural V–O clusters with encapsulated formate ions different electron populations, their characterization are reported; in structurally related spin–spin coupling increases increasing numbers of VIV centres a nearly continuous way.