铁电材料用于阴极发射的研究

铁电材料作为一种新型的阴极材料，具有真空要求低、制作简单、功函数低、响应速度快等特点。本文讨论了铁电阴极发射的机理，回顾了主要铁电阴极材料的发射实验，包括低电压铁电发射实验，最后对铁电阴极材料的应用做了讨论和展望。     

低NOx燃烧技术及应用

阐述了燃料燃烧过程中NOx的生成机里和抑制方法,介绍了降低NOx的燃烧技术及应用效果.     

汽车排放控制系统中的氧传感器现状及展望

介绍了浓差型(Nernst型)、极限电流型和半导体电阻型等汽车排放控制系统中的氧传感器原理及结构。在综合该领域国内外研究现状的基础上,对氧传感器的发展进行了展望。     

气侵检测仪的研制与应用

基于气体侵入井眼后按气液两相流型分布的原理，利用声波可以早期检测到气侵。文章对气侵进行了深入研究，研制了声波气侵检测仪，做到了生产过程中早期气侵检测，以避免井喷的发生，并及时发现油气层。     

伴随内转换电子发射的俄歇电子能量及强度计算

简要介绍了伴随内转换电子发射产生的俄歇电子能量与强度的计算方法、计算程序及工作流程，并以^129Iβ^-衰变为例说明其具体应用。     

套管井声波成像测井资料的采集与应用

过套管利用偶极子声波成像测量获得地层横波资料，在理论上讲是可行的。但此项目不仅国内测井公司未进行过现场作业，就连美国哈里伯顿公司也没有此项目的现场作业经验。新疆测井公司通过认真制订测井方案，克服了各种困难，首次顺利获得了优质的地层横渡资料，开创了测井技术史上在套管井中获得横波资料的先例。     

New approach to enhance adhesions between carbon nanotube emitters and substrate by the combination of electrophoresis and successive electroplating

Complementary electroplating combined with electrophoresis enhanced the field emission characteristics of emitters by improving the adhesions between CNT emitters and substrate. The emitting current of the CNT emitters prepared by our combined method increased nine times higher than that of CNT emitters prepared by electrophoresis only, since electroplating improved the adhesion of CNT emitters. During the life-time measurement for 10 h, the emitting current of CNT emitters fabricated by electrophoresis only was drastically decreased to 13% of the initial current, while that prepared by the combination of electrophoresis and successive electroplating decreased to 64% of the initial current. We suggest that our method is a promising approach for the efficient fabrication of reliable CNT emitters.     

Measurement accuracy enhancements for wideband modulated signals

Time‐domain waveform measurements of wideband modulated signals, although attractive for communication systems modeling applications, have until now lacked the required accuracy for quantitative analysis. New developments described here enhance the accuracy of these measurements, enabling their application to communication system characterization and modeling. © 2003 Wiley Periodicals, Inc. Int J RF and Microwave CAE 13: 32–39, 2003.     

Hybrid numerical scheme for time-evolving wave fields

Many problems in geophysics, acoustics, elasticity theory, cancer treatment, food process control and electrodynamics involve study of wave field synthesis (WFS) in some form or another. In the present work, modelling of wave propagation phenomena is studied as a static problem, using finite element method and treating time as an additional spatial dimension. In particular, WFS problems are analysed using discrete methods. It is shown that a fully finite element-based scheme is very natural and effective method for the solution of such problems. Distributed WFS in the context of two-dimensional problems is outlined and incorporation of any geometric or material non-linearities is shown to be straightforward. This has significant implications for problems in geophysics or biological media, where material inhomogeneities are quite prevalent. Numerical results are presented for several problems referring to media with material inhomogeneities and predefined absorption profiles. The method can be extended to three-dimensional problems involving anisotropic media properties in a relatively straightforward manner. Copyright © 2006 John Wiley & Sons, Ltd.     

拟声波构建技术在砂泥岩薄互层储层预测中的应用

拟声波构建技术依据对储层敏感的非声波地球物理测井信息构建具有声波量纲的新曲线，进而形成拟声波曲线。由于该声波曲线既能反映地层速度和波阻抗的变化，又能反映地层岩性的细微差别，可以较好地解决薄互层储层定量预测中的岩性识别、薄层分辨等难题。针对歧口凹陷南大港地区地层实测声波时差曲线对砂、泥岩的岩性反映不明显，无法进行储层反演预测的问题，采用了拟声波构建技术。将对储层岩性敏感性好的自然电位曲线转换成拟声波曲线，以此为约束条件实现了储层预测的目的，取得了较好的应用效果。