高可靠性单变压器多相控制功率合成SMPS方案研究

功率合成是电源设计中的一项重要技术。介绍了单管flyback converter功率合成的方法，讨论了单管、双管forward converter的并联电路和磁路，重点研究了单一变压器的两相、四相双管forward convert的并联电路和磁路的设计方案，阐述了该方案的优越性，经实验验证了方案的可行性。     

基于四叉树的地形数据二维显示与交互

地形是合成自然环境中重要的组成部分，地形的二维显示对于创建想定以及二雏仿真具有重要的意义。本文根据地形二维显示中遇到的实际问题，提出了基于四叉树的地形二维显示框架，将不同类型、各种规模、各种格式、大数据量的地形数据用该显示框架统一组织起来，实现地形图的动态生成，解决了地形图的动态交互显示及实时查询问题。     

金属载体上原位合成ZSM-5分子筛

以正硅酸乙酯(TEOS)和NaAlO2作为硅源和铝源，四乙基氢氧化铵(TEAOH)作为模板剂，用水热合成法在经表面处理的金属载体上原位合成了ZSM-5分子筛涂层，并采用BET、XRD、SEM等表征技术，研究了金属材料的处理方法、合成时间及次数等因素对ZSM-5分子筛涂层的结晶度、比表面积、覆盖率和涂层热牢固度的影响。结果表明，用原位合成法可以在金属载体上制得结晶度高、热牢固度好的ZSM-5涂层。     

2,6-二甲基-3,5-二氯-4-吡啶醇的合成及其抗球虫作用的研究

以双乙烯酮为原料,经二聚合反应,得脱氢醋酸。再由脱氢醋酸分别经水解、氨化、氯化反应(总收率26.97%)或高压氨化、氯化反应(总收率39.52%)制得文题化合物(m.p.345℃)。药理试验表明其毒性较低(LD_(50)>10g/kg)。用作饲料添加剂可明显提高鸡的增重率,降低死亡率,防治球虫病。     

桥链冠醚卟啉与钴（II）,铜（II）的配位反应

用光度法测定了桥链冠醚卟啉与Ｃｏ＾２＋、Ｃｕ＾２＋配位反应的速率常数、活化能及热力学参数。结果表明：桥链冠醚卟啉与Ｃｏ＾２＋配位反应活化能Ｅａ较大，ΔＨ〉０；而与Ｃｕ＾２＋配位反应Ｅａ较小，且ΔＨ＝０；桥链冠醚钴卟啉的ＥＳＲ谱表明它具有载氧能力。     

有限长截锥侧隙缝天线在E面上的辐射场

针对隙缝天线严格的解析辐射解复杂难求的问题，提出了采用几何绕射理论的计算方法，并将飞行器机身等效为有限长截雄，得到了计算结果．     

<Emphasis Type="Italic">In situ</Emphasis> synthesis of TiC reinforced Cu<Subscript>47</Subscript>Ti<Subscript>34</Subscript>Zr<Subscript>11</Subscript>Ni<Subscript>8</Subscript> bulk metallic glass composites

In situ synthesized TiC particles and β-Ti dendrites reinforced Cu47Ti34Zr11Ni8 bulk metallic glass (BMG) composite ingots were prepared by the suction casting method.The ingots with diameters from 1 up to 4mm were successfully obtained. It was shown that introducing TiC micro-sized particles into the amorphous matrix did not disturb the glass forming ability (GFA) of the matrix,while the yield strength and ductility could be well improved.The phase constitution, microstructure and elements distribution in the composites were studied by OM, XRD, SEM and EDS.It was shown that the in situ synthesized TiC particles acting as heterogeneous nucleation sites promoted the precipitation of β-Ti dendrites, resulting in the formation of the TiC particles and β-Ti dendrites co-reinforced BMG composites. The compressive tests were employed to probe the yield strength and ductility of BMG composites.     

Anion-exchangeable inorganic-organic hybrid materials synthesized without using templates

Inorganic-organic hybrid materials have been obtained at room temperature in aqueous solution without using the templates of surfactants. The materials are carefully characterized by anion-exchange measurement, elements analysis, X-ray diffraction, and infrared spectroscopy. Notably, the anion-exchange capacity of the samples (3.9mmol.g^-1) is even higher than anion-exchangeable resins. Interestingly, both small and large anions could be easily exchanged into the samples due to the plasticity of the samples, along with the phase transition.