3,932 research outputs found

    Pricing Scheme of Ocean Carrier for Inbound Container Storage for Assistance of Container Supply Chain Finance

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    The aim of this paper is to investigate the pricing scheme of ocean carrier for inbound container storage so as to assist container supply chain finance. In this paper, how an ocean carrier should set price of inbound container storage to the customer while facing the contract from the container terminal operator is first analyzed. Then, two different contract systems, the free-time contract system which is widely used in practice and the free-space contract system which is newly developed recently, are considered. In the two different contract systems, inbound container storage pricing models are constructed, and accordingly optimal solution approaches for the ocean carrier are provided. For comparison purpose, some numerical experiments for the two different contract systems are conducted to investigate the effects of the container terminal operator’s decision on the system outcomes. Numerical experiments show that (1) the carrier is more flexible in the free-space contract system and can receive more profit by using the free-storage-space as a pooling storage system and (2) the free-space contract system benefits both the carrier in profit and the busy terminal in traffic control

    Holographic boiling and generalized thermodynamic description beyond local equilibrium

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    Tuning a very simple two-component holographic superfluid model, we can have a first order phase transition between two superfluid phases in the probe limit. Inspired by the potential landscape discussion, an intuitive physical picture for systems with first order phase transitions is provided. We stress that holography perfectly offers a generalized thermodynamic description of certain strongly coupled systems even out of local equilibrium, which enables us to carefully study domain wall structures of the system under first order phase transitions, either static or in real time dynamics. We numerically construct the 1D domain wall configuration and compute the surface tension of the domain wall from its generalized grand potential. We also numerically simulate the real time dynamics of a 2D bubble nucleation process (holographic boiling). The surface tension of the 1D domain wall nicely matches the final state of the 2D bubble nucleation process when the bubble radius is large enough

    Nonleptonic two-body charmless B decays involving a tensor meson in the Perturbative QCD Approach

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    Two-body charmless hadronic B decays involving a light tensor meson in the final states are studied in the perturbative QCD approach based on kTk_T factorization. From our calculations, we find that the decay branching ratios for color allowed tree-dominated decays B→a20π+B\to a_{2}^{0}\pi^{+} and B→a2−π+B\to a_{2}^{-}\pi^{+} modes are of order 10−610^{-6} and 10−510^{-5}, respectively. While other color suppressed tree-dominated decays have very small branching ratios. In general, the branching ratios of most decays are in the range of 10−510^{-5} to 10−810^{-8}, which are bigger by one or two orders of magnitude than those predictions obtained in Isgur-Scora-Grinstein-Wise II model and in the covariant light-front approach, but consistent with the recent experimental measurements and the QCD factorization calculations. Since the decays with a tensor meson emitted from vacuum are prohibited in naive factorization, the contributions of nonfactorizable and annihilation diagrams are very important to these decays, which are calculable in our perturbative QCD approach. We also give predictions to the direct CP asymmetries, some of which are large enough for the future experiments to measure. Because we considered the mixing between f2f_{2} and f2′f_{2}', the decay rates are enhanced significantly for some decays involving f2′f_{2}^{\prime} meson, even with a small mixing angle.Comment: 26 pages, 2 figure

    Perturbative QCD study of BsB_s decays to a pseudoscalar meson and a tensor meson

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    We study two-body hadronic Bs→PTB_s\to PT decays, with P(T)P (T) being a light pseudoscalar (tensor) meson, in the perturbative QCD approach. The CP-averaged branching ratios and the direct CP asymmetries of the ΔS=0\Delta S=0 modes are predicted, where ΔS\Delta S is the difference between the strange numbers of final and initial states. We also define and calculate experimental observables for the ΔS=1\Delta S=1 modes under the Bs0−Bˉs0B_s^0-\bar{B}_s^0 mixing, including CP averaged branching ratios, time-integrated CP asymmetries, and the CP observables CfC_{f}, DfD_{f} and SfS_{f}. Results are compared to the Bs→PVB_s\to PV ones in the literature, and to the B→PTB\to PT ones, which indicate considerable U-spin symmetry breaking. Our work provides theoretical predictions for the Bs→PTB_s\to PT decays for the first time, some of which will be potentially measurable at future experiments.Comment: 6 pages, 1 figur
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