聚氯乙烯—吡啶树脂的合成及其催化水解反应的研究

在浓氧氢氧化钠作用下，聚氯乙烯与吡啶作用与制成聚氯乙烯－吡啶树脂，测定了其元素组成和红外光谱，并考察了其在酯水解反就听催化活性。     

All-Fibre Ytterbium-Doped Photonic Crystal Fibre Laser with High Efficiency

A double-cladding ytterbium-doped photonic crystal fibre （PCF） with a 350-μm^2 effective area is fabricated. The measurement results show that the PCF has high absorption peak at 915 nm. Its fluorescence lifetime is 840μs. Laser experiments with all-fibre configurations are carried out with this fibre. A continuous-wave output power of 3.96 W is achieved with a 5.2 W launched pump power. The central wavelength of the output spectrum is 1080.22nm. The results show that the PCF laser has a high slope efficiency of 79.6% and light conversion efficiency of 76.2%.     

Hg对Bi系高温超导体织构生长的影响

用熔融织构工艺尝试制备的Ｂｉ系超导织构化样品并探索ＨｇＯ的加入对Ｂｉ系样品织构成形成的影响；结果发现，虽然样品（Ｂｉ，Ｐｂ）ＳｒＣａＣｕ的名义配比为２２２２３或２２３４，Ｘ射线衍射分析表明，所得织构样品均不为２２２３或２２３４相，而是２２１２相，原始样品的Ｈdisplay status     

钌(Ⅱ)的氮杂环配体配合物的CNDO/2理论研究

本文运用CNDO/2方法经SCF计算获得了钌(Ⅱ)配合物Ru(L)₃²⁺(其中L=bpy, bpm和bpz)，分别是2，2′-联吡啶，2，2′- 联嘧啶，2，2′- 联吡嗪)和Ru(bpy)₂(bqdi)²⁺(其中bqdi是邻二亚胺苯醌)的电子结构参数，并且从电子微观结构层次研究了它们的结构—性能关系。计算结果与实验事实相吻合。     

辐射化学

由於原子能的和平利用而产生了許多新的科学部門,輻射化学就是其中的一个部门。最初的研究工作是在二十世纪初期当发現放射性现象之后就立即开始了。但是只有在建成了大量的原子核反应堆、高能量的X-射线装置和各种类型的带电粒     

Track reconstruction using the TSF method for the BESⅢ main drift chamber

We describe the algorithm to reconstruct the charged tracks for BESⅢ main drift chamber at BEPCⅡ, including the track finding and fitting. With a new method of the Track Segment Finder (TSF), the results of present study indicate that the algorithm can reconstruct the charged tracks over a wide range of momentum with high efficiency, while improving the robustness against the background noise in the drift chamber. The overall performances, including spatial resolution, momentum resolution and secondary vertices reconstruction efficiency, etc. satisfy the requirements of BESⅢ experiment.