Results 111 to 120 of about 74,154 (347)

DAMA/LIBRA results and perspectives of the second stage [PDF]

Ядерна фізика та енергетика, 2013
The DAMA/LIBRA experiment is mainly dedicated to the investigation on DM particles in the Galactic halo by exploiting the model independent Dark Matter (DM) annual modulation signature.
R. Bernabei, P. Belli, F. Cappella, V.Caracciolo, R. Cerulli, C. J. Dai, A. d`Angelo, A. Di Marco, H. L. He, A. Incicchitti, X. H. Ma, F. Montecchia, X. D. Sheng, R. G. Wang, Z. P. Ye   +14 more
doaj  

Galactic Spiral Pattern beyond the Optical Size Induced by the Triaxial Dark Halo

Open Astronomy, 2015
We suggest a possible mechanism for the formation of non-tidal gaseous structures in galactic outskirts. According to recent observations, extended spiral structures are detected beyond the optical radii Ropt in numerous disk galaxies.
Butenko M., Khoperskov A., Khoperskov S.
doaj   +1 more source

Dark galactic halos without dark matter

, 2015
Using standard Einstein theory, baryonic mass cannot account for observed galactic rotation velocities and gravitational lensing, attributed to galactic dark matter halos.
Nesbet, R. K.
core   +1 more source

Detecting the Six Polytypes of Five‐Layer Graphite

Advanced Materials, EarlyView.
The six possible periodic crystals—so‐called polytypes of Penta layer graphene are identified using Raman, second harmonic, and electric surface potential measurements. The measurements reveal the polytypes’ abundance, relative stability, and annihilation dynamics, crucial for future multiferroic SlideTronic applications.
Nirmal Roy, Shaked Amitay, Simon Salleh Atri, Harel Kabla, Oren Ben Moshe, Moshe Ben Shalom   +5 more
wiley   +1 more source

Spatially Encoded Polaritonic Ultra‐Strong Coupling in Gradient Metasurfaces with Epsilon‐Near‐Zero Modes

Advanced Materials, EarlyView.
Dielectric dual gradient metasurfaces supporting quasi‐bound‐states‐in‐the‐continuum are leveraged to spatially encode both the spectral and coupling parameter space and demonstrate ultra‐strong coupling to an epsilon‐near‐zero mode in an ultra‐thin SiO2 layer.The platform achieves exceptional mode overlap, reaching a normalized coupling strength of η =
Enrico Baù, Andreas Aigner, Jonas Biechteler, Connor Heimig, Thomas Weber, Thorsten Gölz, Stefan A. Maier, Andreas Tittl   +7 more
wiley   +1 more source

Highlights of DAMA/LIBRA

EPJ Web of Conferences, 2016
The DAMA project develops and uses new/improved low background scintillation detectors to investigate the Dark Matter (DM) particle component(s) in the galactic halo and rare processes deep underground at the Gran Sasso National Laboratory (LNGS) of the ...
Bernabei R., Belli P., d’Angelo A., d’Angelo S., Di Marco A., Montecchia F., Incicchitti A., Cappella F., Caracciolo V., Cerulli R., Dai C.J., He H.L., Kuang H.H., Ma X.H., Sheng X.D., Wang R.G., Ye Z.P.   +16 more
doaj   +1 more source

Flattening and kinematics of the galactic halo [PDF]

Monthly Notices of the Royal Astronomical Society, 1991
The Jeans equations are used to study the galactic halo. Relations are derived between the axial ratio q of the metal-poor halo, the axial ratio p of the dark halo, and the local velocity ellipsoid of metal-poor halo stars. Comparison with observational data implies that (1) neither models in which the principal axes of the velocity ellipsoid align ...
openaire   +3 more sources

Inverse Spillover and Dimensionality Effects on Interstitial Hydrogen

Advanced Materials Interfaces, EarlyView.
Interstitial hydrogen behaves distinctly at interfaces compared to the bulk. Vanadium films show proximity‐dependent hydrogen depletion near interfaces–an inverse of hydrogen spillover. Ion beam and resistivity measurements reveal Fe/V‐superlattices have lower hydrogen solubility and higher critical temperature than Cr/V due to proximity‐induced finite
Kristina Komander, Gunnar K. Pálsson, Sotirios A. Droulias, Theofanis Tsakiris, David Sörme, Max Wolff, Daniel Primetzhofer   +6 more
wiley   +1 more source

Simulating a White Dwarf-dominated Galactic Halo

, 2003
Observational evidence has suggested the possibility of a Galactic halo which is dominated by white dwarfs (WDs). While debate continues concerning the interpretation of this evidence, it is clear that an initial mass function (IMF) biased heavily toward
B. K. Gibson, C. B. Brook, D. Kawata, Graff   +3 more
core   +2 more sources

Copper Stress Response of Antibiotic‐Resistant and Copper‐Tolerant Enterococcus faecium and the Antibacterial Efficacy of Functionalized Copper Surfaces

Advanced Materials Interfaces, EarlyView.
This study examines how different laser‐patterned copper and brass surfaces, including copper coatings, affect the survival of vancomycin‐resistant Enterococcus faecium. Using microscopy and genome analysis, the results show that copper tolerance varies between strains and can increase after vancomycin exposure.
Franca Arndt, Katharina Siems, Stella Marie Timofeev, Philippe Baumann, Aisha Saddiqa Ahmed, Daniel Wyn Müller, Frank Mücklich, Aaron Haben, Ralf Kautenburger, Ronja Anton, Christoph Schaudinn, Michael Laue, Oliver Schwengers, Katharina Runzheimer, Rocío Arazo del Pino, Kyriaki Xanthopoulou, Paul G. Higgins, Stefan Leuko, Alessa Lalinka Boschert   +18 more
wiley   +1 more source