A5108415721- Nuclear physics research studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Nuclear reactor physics and engineering
- Atomic and Molecular Physics
- Astronomical and nuclear sciences
- Cold Atom Physics and Bose-Einstein Condensates
- Particle physics theoretical and experimental studies
- Nuclear Physics and Applications
- Quantum, superfluid, helium dynamics
- Physics of Superconductivity and Magnetism
- Cold Fusion and Nuclear Reactions
- Frequency Control in Power Systems
- Particle accelerators and beam dynamics
- Railway Systems and Energy Efficiency
- Sphingolipid Metabolism and Signaling
- Fire dynamics and safety research
- Advanced NMR Techniques and Applications
- Risk and Safety Analysis
- Scientific Research and Discoveries
- Plant Pathogens and Fungal Diseases
- Wind and Air Flow Studies
- Fungal Biology and Applications
- Statistical Mechanics and Entropy
- Mycorrhizal Fungi and Plant Interactions
Linyi University
2024
China Waterborne Transport Research Institute
2022-2023
Beihang University
2023
Hangzhou Dianzi University
2012-2022
Chinese Academy of Sciences
2004-2021
Institute of Modern Physics
2004-2021
Fermi National Accelerator Laboratory
2013-2014
Lanzhou University of Technology
2012
Shanghai Jiao Tong University
2009
The superheavy nuclear production mechanism can be described by fusion reactions with the dinuclear system concept, in which deformations of two nuclei are assumed to stay at their ground state nucleons transferring between them. Actually have deform due very strong and Coulomb interactions These analytically a Fokker-Planck equation, combining them master equation that describes nucleon transfer cross sections investigated systematically. calculated results good agreement available data,...
Abstract High-temperature superconducting traction transformers (HTSTTs) have the merits of small size and lightweight in comparison with their conventional counterparts. This article reports development progress a 6.6 MVA HTSTT operating at 65 K, including design, testing, system cooling. The introduction flux diverters an optimized winding design realized short-circuit impedance higher than 43% AC loss less 3 kW. insulation structure was designed to pass tests specified standard China GB/T...
The dependence of the evaporation residue cross section (ERCS)'s ability to produce superheavy nuclei (SHN) on isospin colliding is analyzed within dinuclear system concept. ERCSs are discussed in detail and compared with existing experimental data. fusion probabilities surviving depend sensitively neutron numbers target projectile nuclei. In most cases a excess can increase producing new nuclide SHN. Some predicted for isotopes SHN were found be as large about 1--8 pb, which enough realized...
The ``island of stability'' superheavy nuclei due to shell effects is explored and the $\ensuremath{\alpha}$-decay half-lives these are predicted. calculations binding energies within a new macroscopic-microscopic model (MMM) performed compared with experimental data for heavy from Md $Z=118$ element. agreement excellent. confirm that ${}^{270}$Hs deformed double submagic nucleus beyond ${}^{208}$Pb. features one-proton-separation MMM reveal next magic after should be ${}^{298}$114....
In order to find a way produce superheavy nuclei (SHN), which appear in the gap between SHN synthesized by cold fusion and those hot fusion, or so far not yet been produced laboratory, we tried make use of set projectile isotopic chains, radioactive beam projectile, test symmetric reactions for gaining more neutrons synthesize neutron-richer based on dinuclear system (DNS) model via reactions. It is found that $^{265}\mathrm{Mt},^{268,272}\mathrm{Ds},^{273}\mathrm{Rg}$,...
The prospects for the synthesis of superheavy nuclei (SHN) using radioactive beams are evaluated quantitatively within framework a dinuclear system (DNS) concept. evaporation-residue cross section (ERCS) hot fusion reactions investigated systematically and compared with recent results obtained by Loveland [Phys. Rev. C 76, 014612 (2007)]. In most cases intensities significantly less than those stable beams, therefore is predicted to be favorable method producing SHN.
Double strangeness $\Xi^{-}$ production in Au+Au collisions at 2, 4, and 6 GeV/nucleon incident beam energies is studied with the pure hadron cascade version of a multi-phase transport model. It found that due to larger nuclear compression, model soft equation state (EoS) gives yields both single ($K^{+}$ $\Lambda+\Sigma^{0}$) double $\Xi^{-}$. The sensitivity EoS evidently than $K^{+}$ or $\Lambda+\Sigma^{0}$ since phase-space distribution produced more compact compared those strangeness....
The center of the predicted island stability superheavy nuclei (SHN) has not yet been observed experimentally. Many theories are being developed to understand synthesizing mechanism nuclei. However, all them have use some basic nuclear data. Three data tables, FRDM1995 [P. M\"oller et al., At. Data Nucl. Tables 59, 185 (1995)], KTUY2005 [H. Koura Prog. Theor. Phys. 113, 305 (2005)], and WS2010 [Ning Wang Rev. C 82, 044304 (2010)], used investigate SHN production. Based on dinuclear system...
In the framework of isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model, effects symmetry energy on evolutions free $n/p$ ratio and charged pion in semicentral collision ${}^{197}$Au+${}^{197}$Au at an incident beam 400 MeV/nucleon are studied. At beginning reaction (before 11 fm/$c$) they both affected by low-density behavior but soon after high-density nuclei compressed (after fm/$c$), generally smaller compared with central case. Interestingly, their dependences shown to rise...
In the framework of isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model, effect momentum dependence nuclear symmetry potential on pion-/pion+ ratio in neutron-rich reaction 132Sn+124Sn at a beam energy 400 MeV/nucleon is studied. We find that affects compressed density colliding nuclei, numbers produced pion- and pion+, as well value ratio. The dependent increases resonances delta(1232), N*(1440),
An approximate homotopy symmetry method for nonlinear problems is proposed and applied to the six-order boussinesq equation. We summarize general formulas similarity reduction solutions equations of different orders, educing related series solutions. The convergence region can be adjusted by auxiliary parameter. Series from retrieved method.
Nucleon momentum distributions at various densities and isospin asymmetries for nuclear matter are investigated systematically within the extended Brueckner-Hartree-Fock approach. The shapes of normalized varying with $k/{k}_{F}$ practically identical, while density- isospin-dependent magnitude distribution is directly related to depletion Fermi sea. Based on these properties, a parametrized formula proposed parameters calibrated calculated result.
We investigate separately the isospin effects of Coulomb interaction and symmetry potential on dissipation fragmentation in intermediate energy heavy ion collisions by using isospin-dependent quantum molecular dynamics model. The calculated results show that induces reductions both fractionation ratio nuclear stopping (momentum dissipation). However, not only does change obviously strong effect but also in-medium two-body collision stopping. On contrary, enhancement it is insensitive to...
Within the framework of an isospin and momentum-dependent hadronic transport model, single double ${\ensuremath{\pi}}^{\ensuremath{-}}/{\ensuremath{\pi}}^{+}$ ratios in mirror reaction systems ${}^{22}\mathrm{O}+{}^{22}\mathrm{Na}$ ${}^{22}\mathrm{Si}+{}^{22}\mathrm{Na}$ at incident beam energy 400 MeV/nucleon are studied. It is found there opposite symmetry effects on from neutron-rich proton-rich reactions. Due to degrees freedom, ratio taken reactions displays more sensitivity density...
The investigation of the characteristics low-energy heavy ion reactions covering both fusion and quasifission is carried out within dinuclear system (DNS) concept, which developed to include deformation variables fragments in addition mass numbers fragments, so that energy dissipation, nucleon exchange, evolutions colliding nuclei as well their correlations are treated simultaneously, potential surface thus reaction-time dependent. direct consequence introducing dynamical one must treat...
Based on the isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model plus Skyrme force parameters, initialization effect is studied in heavy-ion collisions at intermediate energies. We find that there are moderate effects following observables: free neutron to proton ratio ($n/p$), ${\ensuremath{\pi}}^{\ensuremath{-}}/{\ensuremath{\pi}}^{+}$ ratio, and differential flow (${F}_{n\ensuremath{-}p}^{x}$). Effects of larger for charged ratios than $n/p$ ratios. And more evident nuclear...
The moments [Formula: see text] of the spherical three-parameter Fermi distribution (3pF) are presented for to 8 as a function parameter text], half-density radius and diffuseness through introduced which can be applied study neutron skin in rich nuclei. general expression moment written combination integrals with text]. errors analytic estimated typical values parameters 3pF compared numerical results.
The studies, from several independent methods, consistently show that $\pi^-/\pi^+$ ratio in the $^{132}$Sn+$^{124}$Sn reaction at 300 MeV/nucleon, which is being carried out Radioactive Isotope Beam Facility (RIBF) Japan, just probes symmetry energy around saturation density.
Based on the isospin-dependent Boltzmann-Uehling-Uhlenbeck (IBUU) transport model, we studied charged pion transverse and elliptic flows in semicentral $^{197}\mathrm{Au}+^{197}\mathrm{Au}$ collisions at 600 MeV/nucleon. It is found that ${\ensuremath{\pi}}^{+}\ensuremath{-}{\ensuremath{\pi}}^{\ensuremath{-}}$ differential flow difference of ${\ensuremath{\pi}}^{+}$ ${\ensuremath{\pi}}^{\ensuremath{-}}$ almost show no effects symmetry energy. Their corresponding are largely affected by...
The symmetry energy effects on the nuclear disintegration mechanisms of neutron-rich system (A0 = 200, Z0 78) are studied in framework statistical multifragmentation model (SMM) within its micro-canonical ensemble. A modified term with consideration volume and surface asymmetry is adopted instead original invariable value standard SMM model. results indicate that as asymmetries considered, translates to a fission-like process from evaporation earlier than at lower excitation energies, mass...
During our ongoing surveys of freshwater fungi in Yunnan Province, two halosphaeriaceous species were collected from submerged wood. Based on their morphological characters and phylogenetic analyses combined LSU, SSU ITS sequence data, a new Nais submersa habitat record Natantispora unipolaris are reported. Descriptions illustration taxa provided.