联合法制备VBL萤光增白剂－砍两头新工艺

将ＤＳＤ酸生产中还原反应并经中和过滤后的清液直接用于ＶＢＬ萤光增白剂生产，获得满意的效果。     

Scattering parameters of a waveguide cross junction loaded with a metallic post in the center

In this paper, the scattering parameters of a waveguide cross junction loaded with a metallic post in the center are analyzed for the first time by using the Method of Lines. The homogeneous boundary condition of the third kind and curved boundary are introduced in the formulation. Numerical results are in good agreement with the experimental data. The scattering parameters at Ka-band and W-band of the cross junctions loaded with metallic posts of different radii are presented. It is shown from the numerical results that loaded with metallic posts is an effective means for adjusting the network parameters of the waveguide cross junction to satisfy some special requirements in the design of millimeter wave components.     

向日葵壳水解-氧化-水解法制取草酸新工艺研究

研究了以植物纤维向日葵壳为原料，采用水解-氧化-水解法制取草酸（乙二酸）的新工艺。与用同类原料，其他方法制草酸相比，本工艺在提高产率，降低生产成本以及易于业化方面有很大突破。在H2SO4质量分数为70%，原料浸泡时间3h以上，m(HNO3):m（向日葵壳）=方面有很大突破，在H2SO4质量分数为70%，原料浸泡时间3h以上，m(HNO3):m(向日葵壳）=2.1:1.0；氧化-水解反应时间5h，反应温度65-70℃的条件下，草酸二水合物收率可达78.5%。     

二钼酸铵(ADM)非团聚晶体的生成试验

探讨了二钼酸铵非团聚晶体生成的机理及制取新工艺。采取该工艺制取的ADM费氏粒度（Fsss)约30μm，激光粒度分布d0.5为370μm，松装比达1.37/cm^3。     

Antiferroelectric lead zirconate thin films derived from acetate precursors

Antiferroelectric lead zirconate (PbZrO₃) films derived from acetate precursors have been fabricated on Pt/Ti-coated silicon wafers and fused silica at 700 °C with an automatic dip-coating process. Films formed directly on the metallized silicon wafer showed the coexistence of perovskite and pyrochlore phases. A pre-coated titania layer of about 10 nm facilitated the formation of the desired perovskite phase. Films deposited on fused silica exhibited interactions between lead and silica which inhibited the crystallization of the films. In this case, a pre-coated titania layer in the range 50–75 nm acted as a diffusion barrier layer, allowing the formation of the perovskite phase. Antiferroelectricity in the films was confirmed by X-ray superstructure, dielectric double hysteresis loops and d.c. bias behaviour at room temperature. The corresponding transverse electro-optic properties were also measured for films deposited on fused silica.     

无约束淬火机目标温度神经网络预报

淬火、控制冷却的冷却速度和目标温度是关系到钢板性能的关键因素 ,但由于冷却过程的水量、水温、辊道速度等对冷却目标温度的影响属多变量非线性过程 ,用简单的解析模型通常精度较低 ,难以达到精确控制的要求。采用人工神经网络技术对无约束淬火机目标温度进行快速预报 ,结果表明 ,预测精度高 ,快速准确