Selective area epitaxy of CdTe

We have performed selective area epitaxy (SAE) of CdTe layers grown by molecular beam epitaxy using a shadow mask technique. This technique was chosen over other SAE techniques due to its simplicity and its compatibility with multiple SAE patterning steps. Features as small as 50 microns × 50 microns were obtained with sharp, abrupt side walls and flat mesa tops. Separations between mesas as small as 20 microns were also obtained. Shadowing effects due to the finite thickness of the mask were reduced by placing the CdTe source in a near normal incidence position. Intimate contact between the mask and the substrate was essential in order to achieve good pattern definition.     

黄骅坳陷白水头-唐家河地区东营组地层地震模拟及响应曲线分析

根据对黄骅坳陷白水头—唐家河地区东营组钻井资料的统计分析，设计了3种不同地质模型．用于分析不同厚度、不同孔隙度和不同流体性质的储层所表现出的地层速度和密度特性，进而通过地震正演模拟研究，得到不同储层参数状况下的响应曲线。分析响应曲线发现，在该地区，当含水砂岩厚度为20m时．其地震反射振幅最大；而含油帮岩在厚度为18m时达到最大。当孔隙度达到22％时．含油砂岩的地震反射振幅会发生极性反转；而含水砂岩在孔隙度为28％时极性反转。这就为该地区的地震储层预测提供了依据。     

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。     

汽油辛烷值智能调合系统

采取一种能够在线学习、不断提高、建立一系列模型的策略，提出了一种具有学习功能的汽油辛烷值智能调合系统。该系统可以根据成品汽油辛烷值指标、生产成本和市场价格等因素提供一个较好的油品调合调度方案。实际应用结果表明，利用参数学习的方法计算调合汽油辛烷值是可行的。     

Fractals by Multigenerators

Abstract: Non-classical fractals generated by many generators are of interest. Random fractals caused by the random action of given generators and by random generrrtors are discussed The generators may have different scales. The fractal spectral function, the generalized fractal dimensions and scaling index are derived explicitly. Examples include the cracking patterns of concrete mix.     

葡北地区快速钻井技术

介绍了葡北地区地质构造及分层特征 ,分析了钻井难点 ,并给出了详细对策 ,从钻具组合、钻头优选、钻进参数优选、钻井液体系及安全技术措施等方面详细介绍了该区快速钻井技术。在葡北 4 - 11井和葡北 6- 1井的应用表明 ,该快速钻井技术能显著提高钻速 ,钻井周期明显缩短     

明渠湍流床面附近跃移层面颗粒浓度垂线分布

本文以动理学理论的Boltzmann方程为基础，考虑明渠湍流床面附近猝发喷射和清扫运动对跃移层内运动颗粒的不同作用，分析了明渠中泥沙颗粒浓度垂线分布问题，得到了适用于包括跃移层、悬移层在内的统一浓度垂线分布公式。文中着重研究了跃移层内运动颗粒的浓度垂线分布，并将本文结果与实测跃移层内浓度垂线分布及实测跃移层顶部浓度进行了对比，结果表明理论与实验两者符合较好。     

改进催化裂解装置再生立管气固输送状态

荆门分公司催化裂解装置由于使用高堆密度催化剂，再生立管出现了气固输送故障，对反应温度和产品收率影响较大。采取改进措施后取得了显著效果，液化气收率可提高约4个百分点，丙烯收率可提高1－3个百分点。     

Fuel management of the HTR-10 including the equilibrium state and the running-in phase

The mode of fuel management of the HTR-10 was studied, including the simulation of the fuel shuffling process and the measurement of the burnup of a fuel element. The prior consideration was the design of the equilibrium state. Based on this the fuel loading of the initial core and the fuel shuffling mode from the initial core through the running-in phase into the equilibrium state were studied. The code system VSOP was used for the physical layout of the HTR-10 at the equilibrium state and in the running-in phase. For the equilibrium state, in order to lessen the difference between the peak and the average burnup, 5-fuel-passage-through-the-core was chosen for the fuel management. The average burnup of the spent fuel for the equilibrium core is 80 000 MWd t⁻¹, and the peak value of it is less than 100 000 MWd t⁻¹ when the burnup of the recycled fuel element is under 72 000 MWd t⁻¹. The mixture of fuel element and graphite element was used for the initial core loading, the volume fractions of the fuel and the graphite elements were 0.57 and 0.43, respectively. During the running-in phase, the volume fraction of graphite will decrease with the fresh fuel elements being loaded from the top of the core and the graphite elements discharged from the bottom of the core. The fuel shuffling mode is similar to that of the equilibrium state. The burnup limit of recycled fuel element is also 72 000 MWd t⁻¹ and the peak burnup is less than 100 000 MWd t⁻¹. Finally the core will be full of fuel elements with a certain profile of burnup and reaches the equilibrium state. According to the characteristics of the pebble-bed high temperature gas-cooled reactor, a calibrating method of concentration of ¹³⁷Cs was proposed for the measurement of fuel burnup.     

涡流管类比逆流换热器方法的研究

结合Scheper，Lewins和Bejan的理论模型，对涡流管类比逆流换热器模型进行了深入地分析，得出了冷流分量对温度分离效应的函数关系式，为了解涡流管机理和实验中强化涡流管温度分离效应提供了理论依据。