基于制造商技术创新水平的古诺与斯坦伯格博弈对比分析

研究了不同博弈模型下制造商产品策略的问题,建立并求解制造商在古诺博弈和斯坦伯格博弈下的模型。通过逆推法求解最优决策,进一步给出了两种博弈模型下的均衡解,并将结果加以对比,得出两种博弈模型对供应商的批发价格和利润、制造商的产品质量和利润的影响。研究表明:供应商的批发价格与博弈模型无关,只和市场规模有关;供应商的利润、制造商的产品质量和利润不仅与博弈模型相关还与制造商的技术创新水平有关。     

Current spin polarization of a platform molecule with compression effect

Using the first-principles method, the spin-dependent transport properties of a novel platform molecule containing a freestanding molecular wire is investigated by simulating the spin-polarized scanning tunneling microscope experiment with Ni tip and Au substrate electrodes. Transport calculations show that the total current increases as the tip gradually approaches to the substrate, which is consistent with the conductance obtained from previous experiment. More interestingly, the spin polarization (SP) of current modulated by compression effect has the completely opposite trend to the total current. Transmission analyses reveal that the reduction of SP of current with compression process originates from the promotion of spin-down electron channel, which is controlled by deforming the molecule wire. In addition, the density of states shows that the SP of current is directly affected by the organic-ferromagnetic spinterface. The weak orbital hybridization between the Ni tip and propynyl of molecule results in high interfacial SP, whereas the breaking of the C $\equiv$ C triple of propynyl in favor of the Ni-C-C bond induces the strong orbital hybridization and restrains the interfacial SP. This work proposes a new way to control and design the SP of current through organic-ferromagnetic spinterface using functional molecular platform.     

盐酸左布诺洛尔的合成工艺改进

以回收的盐酸左布诺洛尔废料为原料,经NaOH碱化,HBr水解得5-羟基-α-萘满酮(2);2经醚化、氨化、用右旋酒石酸拆分得到盐酸左布诺洛尔,其结构经1H NMR和IR确证。2的回收率90%,总收率80.6%。