搜索结果: 31-45 共查到“知识库 核结构”相关记录248条 . 查询时间(2.218 秒)
Radon data processing and outputs for the needs of the State Office for Nuclear Safety (according to the Czech Radon Programme)
radon-indoor-bedrock relationship radon mapping
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2015/9/10
Much of the population living in the Czech Republic is exposed to radiation from natural sources, especially to the
radon effect. The aim of geological research defined by the State Office for Nuclea...
自由单演逆半群上的核——迹算子半群
自由单演逆半群 核 迹 极值同余
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2014/5/5
对于逆半群上的同余ρ,在它的迹类中存在最大元ρT和最小元ρt. 相应地, 在它的核类中有最大元ρK 和最小元ρk. 因此,我们在S的同余格上得到四个算子Γ={T,t,K,k}. 本文将给出自由单演逆半群上, 由算子半群Γ生成的半群, 即自由单演逆半群上的核—迹算子半群.
伊朗核问题：拷打人类的核伦理？
伊朗 核 人类
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2013/7/24
1947年，美国学者布罗迪在自己的专著《最后的武器》一书中曾充满忧虑地预见说，当核武器研制成功之后，人类的未来将不可避免地受到核困扰。这种困扰的程度，布罗迪表示，不仅仅是各国争相发展核武器能力，以此来壮大自己的军事力量，最重要的是，核武器从此将成为一张外交与安全的王牌，会从此搅得世界“痛苦而且不安”。现在距离布罗迪的书出版将近 60年了，他当年的预言成为不幸地成为世界政治新的现实。
Unitary coupled-channels model for three-mesons decays of heavy mesons
heavy-meson hadronic decay exotic meson 3-body unitarity
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2011/7/21
A unitary coupled-channels model is presented for investigating the decays of heavy mesons and excited meson states into three light pseudoscalar mesons. The model accounts for the three-mesons final ...
Classical Skyrmions -- Static Solutions and Dynamics
Classical Skyrmions Static Solutions Dynamics
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2011/7/21
Skyrmions with a realistic value of the pion mass parameter are expected to be quite compact structures, but beyond baryon number B=8 only a few examples are known. The largest of these is the cubical...
Sensitivity of Azimuthal Jet Tomography to Early Time Energy-Loss at RHIC and LHC
RHIC and LHC Energy-Loss Tomography
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2011/7/20
We compute the jet path-length dependence of energy-loss for higher azimuthal harmonics of jet-fragments in a generalized model of energy-loss that can interpolate between pQCD and AdS/CFT limits and ...
The three-boson system at next-to-leading order in the pionless EFT
pionless EFT next-to-leading order
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2011/7/20
We analyze how corrections linear in the effective range, $r_0$, affect quantities in the three-body sector within an effective field theory with short-range interactions.
Alpha-Cluster Model, Charge Symmetry of Nuclear Force and Single Particle Bound State Potential in Symmetrical Nuclei
Alpha-Cluster Model Nuclear Force Bound State Potential
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2011/7/20
A phenomenological alpha-cluster model based on the charge symmetry of nuclear force allows one to estimate the last proton position radius (LPPR) in a symmetrical nucleus. The values of LPPR obtained...
Emergence of pygmy dipole resonances: Magic numbers and neutron skins
pygmy dipole resonances Magic numbers neutron skins
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2011/7/20
The pygmy dipole resonances (PDR) for even-even nuclei in 8=
Three-dimensional calculation of inhomogeneous structure in low-density nuclear matter
low-density nuclear matter inhomogeneous structure
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2011/7/20
In low-density nuclear matter which is relevant to the crust region of neutron stars and collapsing stage of supernovae, non-uniform structures called "nuclear pasta" are expected.
Static and Dynamic Chain Structures in the Mean-Field Theory
Mean-Field Theory Static and Dynamic Chain Structures
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2011/7/20
We give a brief overview of recent work examining the presence of $\alpha$-clusters in light nuclei within the Skyrme-force Hartree-Fock model. Of special significance are investigations into $\alpha$...
Relativistic Description of Finite Nuclei Based on Realistic $NN$ Interactions
$NN$ Interactions
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2011/7/20
A set of relativistic mean field models is constructed including the Hartree and Hartree-Fock approximation accounting for the exchange of isoscalar and isovector mesons as well as the pion.
Comment on "Nuclear structure corrections in muonic deuterium"
Nuclear structure muonic deuterium Atomic Physics
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2011/8/3
Abstract: A recent letter [1] investigated the effects of deuteron polarizability in the mu D atom. The importance of understanding this atom has been heightened because of the possible light it could...
Exploring Three-Nucleon Forces in Lattice QCD
Three-Nucleon Forces Lattice QCD
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2011/7/21
Three-nucleon forces (3NF) are investigated from two-flavor lattice QCD simulations. We utilize the Nambu-Bethe-Salpeter (NBS) wave function to determine two-nucleon forces (2NF) and 3NF in the same f...
Probing the high momentum component of the deuteron at high Q^2
high momentum component deuteron high Q^2
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2011/7/20
The d(e,e'p) cross section at a momentum transfer of 3.5 (GeV/c)^2 was measured over a kinematical range that made it possible to study this reaction for a set of fixed missing momenta as a function o...