Results 51 to 60 of about 26,227,955 (381)
Impact of pion dynamics on nuclear shell structure
, 2015 Spin-isospin response in exotic nuclear systems is investigated. It is found that in some nuclei excitations with pionic quantum numbers (0-, 1+, 2-, ...) appear at very low energies with large transition probabilities, which is an indication of the ...
Litvinova, Elena
core +1 more source
Dynamic responses of reinforced concrete beams under double-end-initiated close-in explosion
Defence Technology, 2018 The reinforced concrete (RC) structural component might suffer a great damage under close-in explosion. Different from distant explosions, blast loads generated by the close-in explosion are non-uniformly distributed on the structural component and may ...
Bin Rao +5 more
doaj +1 more source
Impact parameter dependence of parton densities at low x [PDF]
, 2000 We consider impact parameter dependence of the polarized and unpolarized parton densities. Unitarity does not allow factorization of these structure functions over the Bjorken x and the impact parameter b variables.
Bjorken +11 more
core +5 more sources
, 2017 The Rochechourt impact structure in south‐central France, with maximum diameter of 40–50 km, has previously been dated to within 1% uncertainty of the Triassic–Jurassic boundary, at which time ~30% of global genera became extinct.
B. E. Cohen +3 more
semanticscholar +1 more source
Impact of Structures from the Protein Structure Initiative [PDF]
Structure, 2007 The collective efforts of the Protein Structure Initiative (PSI) have so far produced over 2700 protein structures (http://kb.psi-structuralgenomics.org/KB/, Metrics Module). This is an impressive statistic, but what of interest have we learned from these structures and what might be the future impact of this knowledge?
openaire +3 more sources
Molecular parameters of post impact cooling in the Boltysh impact structure [PDF]
, 2010 Impact events have the potential to generate a number of long-term sources of heat that can lead to the initiation of hydrothermal systems when the impact occurs on a water- or ice-rich target.
Gilmour, I. +5 more
core
The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada
Population Ecology, EarlyView.We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley +1 more source
MECHANICAL DAMPING SYSTEM FOR STRUCTURES [PDF]
, 2005 A mechanical damping system for a structure is provided. The mechanical damping system comprises a tubular impact frame secured to the structure. A support frame is secured to the structure with the support frame spaced from the impact frame.
Hamilton, Homer R., III +2 more
core +1 more source
Network topology drives population temporal variability in experimental habitat networks
Population Ecology, EarlyView.Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu +3 more
wiley +1 more source
Anais da Academia Brasileira de CiênciasTerrestrial impact structures are geological and geomorphological features with particular importance to understand the history and evolution of the planet.
JOANA P. SÁNCHEZ, JOSÉ B.R. BRILHA
doaj +1 more source