New microscopic wave function of ��-condensation

We explain how to treat a microscopic wave function of ??-condensation taking a 3??-nucleus as a typical example. The wave function has been originally proposed ten years before by Horiuchi, R?pke, Schuck and the present author (Phys. Rev. Lett., 2001, 87: 192501). The microscopic model, which fully takes into account the Pauli principle between all the constituent nucleons, effective internucleon forces and the Coulomb force, can play an important role in reproducing an ??-gas nature thanks to ??-condensation as an excited state of ??-like nuclei. An essential point of the wave function is to describe their ground state simultaneously. We study its typical features by giving an analytical formula of the norm kernel and the kernel concerning the one-body operator for 3??-condensation.     

若干经济数学模型的研究与应用

本文论述了近些年我们在投入产出模型、广告最优随机控制模型、最佳营销管理模型以及时间序列—马尔可夫链组合预测模型等方面所做的研究工作，同时也论及国内外在上述几方面的研究状况．     

09-0685(四次修改稿)_王亮 师义民 (逐步增加II型截尾下比例危险率模型的可靠性分析) 2010-03-05

基于逐步增加 II 型截尾样本，分别在均方损失和 Linex 损失下，利用 ML-II 方法研究了比例危险率模型的参数和可靠性指标的经验 Bayes 估计问题。为了研究估计结果的精确性，分析了一个实际应用例子，并利用 Monte-Carlo 方法给出一个数值模拟例子，结果表明在非对称 Linex 损失下，经验 Bayes 估计更具灵活性，且结果更加有效。     

Effects of clouds, sea surface temperature, and its diurnal variation on precipitation efficiency

The effects of clouds, sea surface temperature, and its diurnal variation on precipitation efficiency are investigated using grid-scale data from nine equilibrium sensitivity cloud-resolving model experiments driven without large-scale vertical velocity. The precipitation efficiencies are respectively defined in surface rainfall, cloud, and rain microphysical budgets. We mathematically and physically demonstrate the relationship between these precipitation efficiencies. The 2℃ increases in spatiotemporal invariant sea surface temperature (SST) from 27℃ to 29℃ and from 29℃ to 31℃, and the inclusion of diurnal SST difference 1℃ and the 1℃ increase in diurnal SST difference generate opposite changes in the precipitation efficiency by changing ice cloud-radiation interactions. The radiative and microphysical processes of ice clouds have opposite effects on the precipitation efficiency because of the rainfall increase associated with the reduction in the saturation mixing ratio caused by the exclusion of radiative effects and the decrease in rainfall related to the reduction in net condensation caused by the exclusion of deposition processes. The radiative effects of water clouds on the precipitation efficiency are statistically insensitive to the radiative effects of ice clouds.     

Extended Bose-Hubbard model with pair hopping on triangular lattice

We study systematically an extended Bose-Hubbard model on the triangular lattice by means of a meanfield method based on the Gutzwiller ansatz. Pair hopping terms are explicitly included and a three-body constraint is applied. The zero-temperature phase diagram and a variety of quantum phase transitions are investigated in great detail. In particular, we show the existence and the stability of the pair supersolid phase.     

Scale-free Networks with Self-Similarity Degree Exponents

Ravasz et al. structured a deterministic model of a geometrically growing network to describe metabolic networks. Inspired by the model of Ravasz et al., a random model of a geometrically growing network is proposed. It is a model of copying nodes continuously and can better describe metabolic networks than the model of Ravasz et al. Analysis shows that the analytic method based on uniform distributions （i.e., Barabási-Albert method） is not suitable for the analysis of the model and the simulation process is beyond computing power owing to its geometric growth mechanism. The model can be better analyzed by the Poisson process. Results show that the model is scale-free with a self-similarity degree exponent, which is dependent on the common ratio of the growth process and similar to that of fractal networks.     

有限气相反应速率条件下MFF模型应用方法的研究

本文使用"CO相对燃烧速率"的概念和通用的"有效影响参数转化方程",将带有气相反应速率无穷快假设的移动火焰锋面(MFF)模型成功地扩展应用到有限气相反应速率条件的计算中。对于多组不同有限气相反应速率、以及不同粒径的碳粒燃烧计算,MFF模型扩展应用的预报结果都与严格连续膜模型符合较好,碳粒着火温度的预报也更为准确。     

物价、利率与收入对居民消费需求影响研究——基于时变参数状态空间模型

运用时变参数状态空间模型对我国改革开放三十年来物价、利率与收入对农村和城镇居民消费需求影响的动态特征进行了研究。发现物价、收入对农村和城镇居民的消费需求弹性不同,农村消费需求受收入影响较大,而城市居民消费需求受物价影响较大;利率对农村和城镇居民消费需求影响不显著,利率机制目前还不是调解中国消费需求的理想工具。在此基础上给出了相应的政策建议。     

立得益片的药理毒理作用

介绍了一种以葡萄糖为药动团 ,半胱氨酸为药效团的新型铅驱排剂的特点、药理、毒理以及在动物 (大、小鼠 )、人体上的驱排铅作用。立得益片对实验动物毒理试验 (急性毒性试验、三项遗传试验和小鼠精子畸形试验 )按GB 1 5 1 93 -94进行 ;饲料添加乙酸铅水溶液造铅中毒大鼠模型 ,随机将铅中毒大鼠分为六组 ,分别为空白对照组、模型对照组、阳性对照组以及立得益片的低、中、高剂量组。人体试验受试对象分为试验组及对照组 ,测定试验前后血铅、尿铅及δ -ALA水平以及点彩红细胞出现率。结果表明 ,立得益片对SD大鼠和昆明种小鼠的急性毒性试验LD50 均大于 1 0g/kg·bw ,属实际无毒级 ;三项遗传毒性试验均为阴性结果 ;对高铅摄入大鼠有较好的促进排铅作用 ;高铅摄入人群服用立得益片 1月后血铅含量与服药前及空白对照组相比有显著性差异 (P <0 0 5 ) ;服立得益片后尿铅含量与服药前相比有显著性差异 (P <0 0 5 )。