线性分子对称群的不可约表示和f轨道的对称性

研究了Ｃ∞ｖ和Ｄ∞ｈ群的不可约表示，并志出了在Ｃ∞ｖ，Ｄ－∞ｈ，Ｃ２ｖ和Ｃ３ｖ群中ｆ轨道所属的对称性。     

LY12铝平面靶对1.06μm激光反射率的测量

采用激光反射率多路测试仪,测量了LY12铝平面靶对1.06μm激光的反射率和反射激光强度的空间分布。在大气、室温环境下,靶表面粗糙度为1.6～3.2μm,激光功率密度由16.8kW/cm~2上升至60.8kW/cm~2时,长脉冲激光反射率由0.90降至0.80。激光功率密度为283MW/cm~2时的短脉冲激光反射率为0.78。而激光反射率和反射激光强度空间分布与靶的温度场、后退的烧蚀面光学特性及蒸汽羽对激光的吸收性质有关。     

高速动光弹系统及其应用

高速动光弹仪是动态光弹性研究的有效诊断工具,主要用于记录各种结构在动载荷作用下,不同瞬间的应力条纹图像。研究应力波的传播规律,裂纹扩展过程,固体高速变形等。通常的动光弹仪为多火花式动光弹仪。国外也有采用静态光弹仪与转镜式高速分幅相机结合的系统。我们研究调试的动光弹系统,是在高速纹影系统中加入偏振光场,即静态光弹系统、纹影系统与转镜式高速分幅相机结合。在雷管动载荷作用下,应用高压脉冲氙灯光源,单色圆偏振光亮场,获得了不同光弹模型的清晰应力条纹图像。给出应力波的传播过程和孔附近产生的应力集中现象。该系统具有摄影频率高、曝光时间短、测试灵敏度高、适于强载荷、远距离研究大尺寸光弹模型,同时具有透射式和反射式光学系统等特点。从而为动态光。弹性研究提供了有效的测试技术和诊断系统。     

3cm相对论返波荡器的粒子模拟研究

 运用全电磁的相对论的25维粒子模拟程序MAGIC模拟分析了3cm相对论返波管中注波互作用的非线性过程，得到了器件微波输出功率，效率，工作频率等参量，模拟结果与实验数据较好地一致。对电子注特性参数，慢波结构尺寸，引导磁场进行了优化，获得了器件最佳化运行的工作参数。     

结合力来自波-粒子互作用(英文)

基于ＢＢＧＫＹ方程，采用二阶扰动理论探索了可观物理量与扰动波矢的相互关系。结果发现，两个扰动带电粒子之间存在一个关联它们的非线性力。这个被称之为结合力的空间尺度是由扰动波矢的虚部决定的。这个结合力的一般表示包含一个吸引项和一个排斥项，它们随粒子的温度和它们的扰动频率而变化。包含在这个结合力中的最重要的信息是同物质的基本构成和它们之间相互作用的性质相联系的。     

千解草甲素的晶体和分子结构

千解草(Pygmaeopremna Herbacea)为马鞭草科千解草属植物,分布在中国西南一带,尤以四川南部为多。民间用其茎叶治疗跌打损伤,风湿性关节炎,月经不调,产后瘀血,外感风寒、消化不良等病患,且疗效显著,广为应用。千解草属植物共有五种,均未见有关化学成份的报道。我们从千解草根的乙醚提取物中得到四种晶体,本文报道了具有代表性的千解草甲素的晶体和分子结构(1)。     

[Cu(DMTZB)_4](ClO_4)_2的合成及晶体结构(DMTZB=3,3-二甲基-(1H-1,2,4-三唑)-2-丁酮)

［Ｃｕ（ＤＭＴＺＢ）４］（ＣｌＯ４）２的合成及晶体结构（ＤＭＴＺＢ＝３，３－二甲基－（１Ｈ－１，２，４－三唑）－２－丁酮）顾建胜李宝龙＊卞国庆（苏州大学化学系苏州２１５００６）郁开北（中科院成都分院分析测试中心成都６１００４１）关键词三唑铜配合物晶体...     

Influence of crystallite structure of nanometer TiO_2 catalysts on photocatalyst reaction

25 samples of nanometer TiO2 were prepared through modifying the preparation conditions including the concentrations of Ti(SO4)2 and NH4HCO3, the pH value at the end of precipitation operation, and sintering temperature and time by methods of orthogonal design. The relationships between their catalytic activities of photocatalytic degradation of sodium dodecyl benzene sulfonate (SDBS) and the normal crystallite size, lattice-strain and X-ray diffraction intensity of 10 crystal faces were analyzed. It was discovered that the photocatalytic degradation reaction of SDBS follows first-order kinetics. Crystal faces of catalysts' (101) have greater influence than other crystal faces on the reaction. The photocatalytic reaction needs more perfect (101) crystal faces with less lattice-strain. Smaller normal crystallite size and greater specific surface area of (101) crystal face are better for increasing reaction rate. The photocatalytic reaction is mainly proceeded on the (101) crystal face, comparatively, amor     

Change of pH indicator's pKa value via molecular imprinting

The pKa value of the indicator is significantly changed up to several orders of magnitude by the imprinting synthesis; this fine-tuning of the reactivity for pH indicators via the imprinting synthesis may find novel applications in fabricating pH sensors with tailored pKa values.     

EFFECTS OF RARE EARTH OXIDE ADDITIVES ON STABILITY OF Ni/Al_2O_3 CATALYSTS FOR METHANE STEAM REFORMING REACTION

The stability and the high temperature steam resistance of Ni/Al2O3 catalysis added with rare earth oxides were investigated. It was found that the addition of rare earth oxides resulted in great improvement in the stability and high temperature steam resistance of the catalysts through suppressing the growth of Ni crystallite, the oxidation of metal Ni and the formation of NiAl2O4.