基于最小错误率贝叶斯决策的企业员工招聘决策

本在[1]和[2]研究基础上，利用[1]、[2]中的分析模型和综合评价模型所得的结果。以及这两个结果正相关性。依据某大型国有企管理初级岗位3000多人的测试结果。采用最小错误率贝叶斯决策。构建了企业管理岗位初级人员招聘模型。此模型为企业根据企业化和价值观等来招聘符合企业要求的员工提供了一种方法。     

富勒烯衍生物中的自散焦、自聚焦及其相互转化

用Z扫描方法研究了富勒烯有机铬衍生物fac- and mer- [bis (1,2-diphenylphosphino) ethane] (tricarbonyl) (η²-fullerene-C₆₀) chromium的非线性折射特性;用速率方程理论分析了激发态光学非线性材料非线性折射行为,以及大光强下高阶激发态折射度如何引起材料自散焦-自聚焦相互转化.计算出了转变光强.并数值模拟了不同光强下Z扫描实验曲线的变化过程.理论计算与实验符合得较好. 关键词： 自散焦 自聚焦 富勒烯衍生物 Z扫描     

燃料电池有轨电车声学优化*

基于线路噪声实验,系统测试分析了燃料电池有轨电车的噪声特性,研究了噪声分布以及空气传声、结构传声路径对噪声的贡献。结果表明改善车辆地板、空调、顶板和风挡的隔声性能,尤其是在500～1250 Hz的1/3倍频带范围内的隔声性能将有助于改善车辆内部声学环境。优化燃料电池系统控制,降低冷却单元转速将有助于改善车辆外部声学环境。在此基础上提出减震降噪建议措施,再次进行线路噪声实验,结果表明该措施有效。     

AMS measurement of In-situ produced cosmogenic 10Be in Loess Quartz in Luochuan

Loess is the most important and the most typical continental classic sediments of Quaternary. So the measurement of In-situ produced cosmogenic ¹⁰Be is expected to be used for the Loess stratigraphic age. But the production rate of In-situ produced cosmogenic ¹⁰Be in Loess quartz is very low. It requires very high sensitivity and accuracy of measurement. This work has measured the concentrations of ¹⁰Be of two layers in Loess section of Luochuan including L8, L9 and the concentrations of ¹⁰Be in (of) blank sample with the HI-13 AMS system at China Insitute of Atomic Energy(CIAE), then calculated the content of ¹⁰Be in loess quartz for each layer. The ratio of ¹⁰Be/⁹Be was found in the range of 10^－13. The background of ¹⁰Be/⁹Be was about 3×10^－14.     

High-Tc planar SQUID gradiometer for eddy current non-destructive evaluation

This paper reports the fabrication and test of a high-Tc SQUID planar gradiometer which is patterned from YBCO thin film deposited on a SrTiO3 bicrystal substrate. The measurement of noise spectrum at 77K shows that the white noise at 200 Hz is about 1×10^-4 φ0/√Hz. The minimal magnetic gradient is measured and the results suggest that the minimal magnetic gradient is 94 pT/m. The planar gradiometer is used in non-destructive evaluation （NDE） experiments to detect the artifacts in conducting aluminium plates by performing eddy current testing in an unshielded environment. The effect of the exciting coil dimension on the NDE results is investigated. By mapping out the induced field distribution, flaws about 10mm below the plate surface can be clearly identified.     

换热器组性能与(火积)耗散及其热阻的关系研究

本文以并联换热器组为对象,在给定每个换热器热容量流的前提下,通过分配各换热器的热导分析了换热器组的总换热量与总(火积)耗散、总(火积)耗散热阻、各换热器(火积)耗散之和、各换热器(火积)耗散热阻之和、及各换热器(火积)耗散热阻加权之和之间的关系。结果表明:在给定每个换热器热容量流,分配热导的前提下,换热器组总换热量的极值与各换热器(火积)耗散之和的极值、各换热器(火积)耗散热阻之和的极值、及以热容量流率与换热量率的乘积作因子的各(火积)耗散热阻加权之和的极值是一致的,而与换热器组总(火积)耗散的极值及总(火积)耗散热阻的极值不一致。     

孤子掺杂光纤放大的半径典模型与分析

建立了孤子掺杂光纤放大的半经典模型，给出了分布放大透明传输的泵浦条件，详细讨论了激发态吸收的影响．文中结果为Ｅｒ￣３＋掺杂光纤孤子放大器的设计提供了重要理论依据．     

配体交换毛细管区带电泳拆分未衍生化氨基酸

以铜（Ⅱ）-L-谷氨酸络合物为手性分离选择剂，对苯丙氨酸、酪氨酸和色氨酸3种非衍生芳香族氨基酸的手性对映体拆分进行了研究，建立了一种快速、简便拆分未衍生化的氨基酸对映体的配体交换毛细管电泳方法。在使用10mmol／L NH4AC（pH5．0），5mmol／L CuSO4和10mmol／L L-谷氨酸的条件下，成功地拆分了苯丙氨酸、酪氨酸手性对映体；色氨酸手性对映体也得到部分分离；考察了电泳缓冲液组成、pH值等影响分离效果的因素。     

Generation of hyperentangled four-photon cluster state via cross-Kerr nonlinearity

We propose a scheme for generating a hyperentangled four-photon cluster state that is simultaneously entangled in polarization modes and spatial modes. This scheme is based on linear optical elements, weak cross-Kerr nonlinearity, and homodyne detection. Therefore, it is feasible with current experimental technology.     

微乳液毛细管电动色谱法快速测定消炎利胆片中的穿心莲内酯和脱水穿心莲内酯

建立了微乳液毛细管电动色谱同时分析消炎利胆片中穿心莲内酯和脱水穿心莲内酯的方法。考察了缓冲溶液的浓度、pH值、十二烷基硫酸钠(SDS)以及助表面活性剂的含量对分离测定的影响。在由乙酸乙酯-SDS-正丁醇-30 mmol/L硼砂缓冲液(pH 9.5)（质量比为0.5∶0.6∶6.0∶92.9）组成的微乳液体系中,两种内酯在6 min内完成分离。该法简便、快速、选择性好,用于实际样品中穿心莲内酯和脱水穿心莲内酯的分析,获得了满意的结果。