新时期网络版权保护述评

随着网络技术的飞速发展，网络版权纠纷的发生在所难免。因应网络环境的变化，在司法实践的推动下，我国进行了大规模的网络版权立法。网络版权保护法律体系已经基本建立起来，但是，仍然存在一些问题需要进一步解决。     

PROGRESS ON THE EXPERIMENT E895 AT AGS

ＡＧＳ的Ｅ８９５实验对于束能量范围每核子２－１０ＧｅＶ的金金碰撞中粒子产生、关联和集体效果的能量和质量相关性进行系统的和遍举的测量．     

Collective fixed points and maximal elements with applications to abstract economies

In this paper, we first establish collective fixed points theorems for a family of multivalued maps with or without assuming that the product of these multivalued maps is Φ-condensing. As an application of our collective fixed points theorem, we derive the coincidence theorem for two families of multivalued maps defined on product spaces. Then we give some existence results for maximal elements for a family of L_S-majorized multivalued maps whose product is Φ-condensing. We also prove some existence results for maximal elements for a family of multivalued maps which are not L_S-majorized but their product is Φ-condensing. As applications of our results, some existence results for equilibria of abstract economies are also derived. The results of this paper are more general than those given in the literature.     

Geometry Relaxation of Photoexcited States in Conjugated Molecules

The random phase approximation combined with semiempirical Hamiltonians is applied to compute and analyze electronic structure and excited state adiabatic potentials of several conjugated molecules. Calculated excited state energies and parameters of molecular adiabatic surfaces characterize the coupled dynamics of vibrational and electronic degrees of freedom. The analysis identifies the specific torsional and bond-stretching nuclear motions that dominate the excited state relaxation and lead to self-localized excitations. This approach is an inexpensive and numerically efficient method of computing molecular excited state adiabatic surfaces and modeling femto-to-pico second time-dependent photoexcitation processes along chosen trajectories.     

Detecting bubbles in exotic nuclei

The occurrence of a bubble, due to an inversion of s_1/2 state with the state usually located above, is investigated. Proton bubbles in neutron-rich argon isotopes are optimal candidates. Pairing effects which can play against the bubble formation are evaluated. They cannot prevent bubble formation in very neutron-rich argon isotopes such as ⁶⁸Ar. This pleads for a measurement of the charge density of neutron-rich argon isotopes in the forthcoming years, with the advent of electron scattering experiments in next generation exotic beam facilities such as FAIR or RIBF.     

4d core hole formation in silver and its role in Ag secondary ion formation/survival

The low energy mono-atomic secondary ion intensities of Ag⁻ over the transient regions from Ag under 1-5 keV Cs⁺ primary ion impact are compared. These energies are used since they appear to be above and below the collisional excitation threshold for 4d core hole formation. The lack of any work function dependence in both suggests that (a) Ag⁻ forms via resonance charge transfer of electrons from the broad 5s-5p band to Ag atoms bearing 4d core holes (Auger is disregarded for energetic reasons), and that (b) the route via which 4d core holes are formed, whether it be via collective oscillations or collisional excitation, is of minimal importance. The similarity in X-ray induced plasmon loss features from clean and Cs implanted Ag confers with these results.     

Collective dynamics of two-dimensional coupled Brownian motors

The transport properties of coupled Brownian particles in a two-dimensional rocking ratchet are investigated via Langevin simulation. The results show that the average center-of-mass velocity is multi-peaks function of the frequency of the driving force. Furthermore, in the 2D coupled Brownian motor system there are the collective effect and ratchet behavior, which can switch depending on the frequency of driving force. It turns out that the cooperative effect between the interaction of coupled particles and external rocking driving force facilitates collective directional motion and energy conversion.     

Neutron-rich 104,106,108Mo Isotopes in the Generalized Collective Model

Introduction　　Theneutron-rich104,106,108MoisotopeswithZ=42,N=6064,liewithintheA=100deformedregion.The104,106Moisotopesareontheedgeoftheregionofsuperdeformedgroundstatesonthereinforcingprotonandneutronshellgapsatthesamesuperdeformation,forZ=38,40andN=60,62.Studyontheseneutron-richnucleicanprovideimportantinsightsintothechangeinnucleideformationandshapeandtestsofnuclearmodelsinthisimportantregion[15].ItwassuggestedthattheheavierMoisotopeswithN≥60aredeformedinthegroundstates[48].However,th…     

演化博弈与自组织合作

主要研究复杂网络上的演化博弈.首先研究具有社团结构的无标度网络上的演化囚徒困境博弈及Newman-Watts小世界网络中异质性对合作演化的影响.然后考察了在不同合作者和作弊者初始分布配置情况下,不同的初始比例条件对合作水平的影响,且在社会网络上研究了雪堆博弈中的合作演化.进一步地,讨论了网络拓扑和博弈动力学的共同演化问题和网络上演化囚徒困境中的强化学习问题.最后给出了复杂网络上演化博弈论的未来发展方向与应用前景.     

Stable collective triaxial rotation in <Superscript>77</Superscript>Kr

Based on the γ -spectroscopic analysis of G.N. Sylvan et al., configuration-dependent cranked Nilsson-Strutinsky calculations have been performed. They describe the nucleus ⁷⁷Kr globally in good agreement with the experimental findings and the expectations derived from single-particle orbitals in a deformed potential. Within these calculations, the unambiguous assignment of a configuration with three protons and five neutrons in the g _9/2 shell to the high-spin Yrast states of negative parity indicates that the nucleus ⁷⁷Kr has stable triaxial deformation and rotates about the intermediate axis. This not only disproves the recent interpretation of an occupation of the d _5/2 orbital being responsible for the strong deformation in this band, but also represents one of the first examples in this mass region for such a rotation.