-
14541
Evidence for concerted ring opening and C-Br bond breaking in UV-excited bromocyclopropane.
Published 2016“…The velocity-map images of these C3H5 fragments have lower angular anisotropies than measured for Br and Br*, indicating molecular restructuring during dissociation. …”
Journal article -
14542
The 2dF Galaxy Redshift Survey: The amplitudes of fluctuations in the 2dFGRS and the CMB, and implications for galaxy biasing
Published 2002“…We compare the amplitudes of fluctuations probed by the 2dF Galaxy Redshift Survey (2dFGRS) and by the latest measurements of the cosmic microwave background (CMB) anisotropies. By combining the 2dFGRS and CMB data, we find the linear-theory rms mass fluctuations in 8 h-1 Mpc spheres to be σ8m = 0.73 ± 0.05 (after marginalization over the matter density parameter Ωm and three other free parameters). …”
Journal article -
14543
Precision epoch of reionization studies with next-generation CMB experiments
Published 2014“…Future arcminute resolution polarization data from ground-based Cosmic Microwave Background (CMB) observations can be used to estimate the contribution to the temperature power spectrum from the primary anisotropies and to uncover the signature of reionization near ℓ=1500 in the small angular-scale temperature measurements. …”
Journal article -
14544
Planck 2013 results. XVII. Gravitational lensing by large-scale structure
Published 2013“…On the arcminute angular scales probed by Planck, the CMB anisotropies are gently perturbed by gravitational lensing. …”
Journal article -
14545
The observational consequences of primordial fields
Published 2005“…The third chapter is an overview on cosmological linear perturbation theory, and on the formalism of the microwave background temperature anisotropies and polarisation. It introduces the technical tools used in the fourth chapter, where we analyse the temperature and polarisation signal induced in the microwave background by a primordial, helical magnetic field. …”
Thesis -
14546
On the impact of new, light states in some astrophysical and laboratory systems
Published 2022“…We calculate the expected excitation rate in quasi-2d ferromagnetic materials, and show it exhibits strong anisotropies. These materials then allow for directional detection of such dark mat- ter candidates. …”
Thesis -
14547
Haldane topological spin-1 chains in a planar metal-organic framework
Published 2023-09-01“…The latter is split by weak axial and rhombic anisotropies. Several experimental probes, including single-crystal X-ray diffraction, variable-temperature powder neutron diffraction (VT-PND), VT inelastic neutron scattering (VT-INS), DC susceptibility and specific heat measurements, high-field electron spin resonance, and unbiased quantum Monte Carlo simulations, provide a detailed, comprehensive characterization of NiBO. …”
Get full text
Article -
14548
The experimental and numerical analysis of elastic rock mechanical properties in tight conglomerate rock samples: a case study in Junggar Basin
Published 2024-01-01“…Numerical results show that the existence of stiff gravels leads to strong direction-dependent stress and strain anisotropies. Stress concentrations are also induced by gravels radially and axially. …”
Get full text
Article -
14549
Yet Another Sunshine Mystery: Unexpected Asymmetry in GeV Emission from the Solar Disk
Published 2024-01-01“…Our findings suggest that the Sun’s magnetic configuration plays a significant role in shaping the resulting γ -ray signature, highlighting a potential link between the observed anisotropies, solar cycle, and the solar magnetic fields. …”
Get full text
Article -
14550
Thermal squeezing and nonlinear spectral shift of magnons in antiferromagnetic insulators
Published 2022-01-01“…In two-sublattice AF systems with uniaxial easy-axis and biaxial easy-plane magneto-crystalline anisotropies, we implement a self-consistent Hartree–Fock mean-field approximation to explore the nonlinear thermal interactions. …”
Get full text
Article -
14551
Vestibular cortex assessment using DTI & MRS complemented by rotatory chair technique in vestibulopathy patients with normal appearing brain MRI
Published 2017-09-01“…Keywords: DTI, Vestibulopathy, Fraction anisotropy…”
Get full text
Article -
14552
Design, Synthesis and Properties of Semi-Alicyclic Colorless and Transparent Polyimide Films with High Glass Transition Temperatures and Low Retardation for Potential Applications...
Published 2023-08-01“…However, the standard PI films usually suffer from deep colors, high optical anisotropies and limited T<sub>g</sub> values. In the current work, a series of semi-alicyclic colorless and transparent PI (CPI) films were developed from hydrogenated pyromellitic dianhydride stereoisomers, 1S,2R,4S,5R-hydrogenated pyromellitic dianhydride and 1R,2S,4S,5R-hydrogenated pyromellitic dianhydride, and fluorene-containing diamines, including 9,9-bis(4-aminophenyl)fluorene and 9,9-bis(3-fluoro-4-aminophenyl)fluorene, respectively. …”
Get full text
Article -
14553
Non-linear flow modes of identified particles in Pb-Pb collisions at s NN $$ \sqrt{s_{\mathrm{NN}}} $$ = 5.02 TeV
Published 2020-06-01“…These non-linear observables probe the contribution from the second and third order initial spatial anisotropy coefficients to higher flow harmonics. All the characteristic features observed in previous p T-differential anisotropic flow measurements for various particle species are also present in the non-linear flow modes, i.e. increase of magnitude with increasing centrality percentile, mass ordering at low p T and particle type grouping in the intermediate p T range. …”
Get full text
Article -
14554
Exchange Bias Effect of Ni@(NiO,Ni(OH)<sub>2</sub>) Core/Shell Nanowires Synthesized by Electrochemical Deposition in Nanoporous Alumina Membranes
Published 2023-04-01“…Despite variations in the alloy composition as well as the realization of several post material fabrication treatments, magnetic heterostructures as ferromagnetic/antiferromagnetic coupled layers have been widely used to modify or generate unidirectional magnetic anisotropies. In this work, a pure electrochemical approach has been used to fabricate core (FM)/shell (AFM) Ni@(NiO,Ni(OH)<sub>2</sub>) nanowire arrays, avoiding thermal oxidation procedures incompatible with integrative semiconductor technologies. …”
Get full text
Article -
14555
Perspectives for Cosmological Reionization From Future CMB and Radio Projects
Published 2018-09-01“…We then describe the scientific outcome of future CMB missions, focussing on the information carried out by polarization anisotropies, spectral (absolute temperature) distortion and dipole (anisotroy) distortions, and discuss the promising perspectives opened by forthcoming and future radio surveys, focussing on the information carried out by the redshifted 21-cm line and by the free-free diffuse emission. …”
Get full text
Article -
14556
Iron-rich (Fe1-x-yNixCoy)88Zr7B4Cu1 nanocrystalline magnetic materials for high temperature applications with minimal magnetostriction
Published 2018-05-01“…FeCo-based nanocrystalline magnetic alloys have resulted in good soft magnetic properties and high Curie temperatures; however, magnetoelastic anisotropies persist as a main source of losses. This investigation focuses on the design of a new Fe-based (Fe,Ni,Co)88Zr7B4Cu1 alloy with reduced magnetostriction and potential for operation at elevated temperatures. …”
Get full text
Article -
14557
Historical volcanism and the state of stress in the East African Rift System
Published 2016-09-01“…To explain the eruptions at these volcanoes we invoke local (non-plate tectonic) variations of the stress field caused by: crustal heterogeneities and anisotropies (dominated by NW structures in the Protoerozoic basement), transfer zone tectonics at the ends of offset rift segments, gravitational loading by the volcanic edifice (typically those with 1-2 km relief) and magmatic pressure in central reservoirs. …”
Get full text
Article -
14558
Paleo‐Permeability Structure of the Crustal Section of the Samail Ophiolite Based on Automated Detection of Veins in X‐Ray CT Core Images From the Oman Drilling Project
Published 2023-06-01“…However, these vein systems show different depth dependencies and anisotropies of permeability, possibly reflecting the different spatial variations of high‐ and low‐temperature fluid circulation in oceanic crust.…”
Get full text
Article -
14559
Ion shell distributions as free energy source for plasma waves on auroral field lines mapping to plasma sheet boundary layer
Published 2004-06-01“…Furthermore, we find that the partly consumed shells often occur in association with enhanced wave activity and middle-energy electron anisotropies. The maximum downward ion energy flux associated with a shell distribution is often 10mWm<sup>-2</sup> and sometimes exceeds 40mWm<sup>-2</sup> when mapped to the ionosphere and thus may be enough to power many auroral processes. …”
Get full text
Article -
14560
Dispersion of particulate in solvent cast magnetic thermoplastic polyurethane elastomer composites
Published 2019-05-01“…FFF is a valuable manufacturing technique that allows for the creation of parts with inherent anisotropies. For the case of an MRE, FFF allows for the production of structures with tunable magnetic susceptibility along different axes. …”
Get full text
Article