RESEARCH ON REAL-TIME CORRECTOR OF SPECTRAL INTERFERENCES

Further advancement of ICP-AES analytical technique is hindered by complex spec-tral interferences.The correction algorithms recently proposed need too much computation andtime to run in real time on general microcomputers.In this paper,a new kind of spectral interfer-ence fast correcting system(SIFCS)was developed,in which the hardware is a TMS32020 digitalsignal processing board in IBM-PC I/O channel and the software is composed of a correctingprogram based on a new effective algorithm and a master program on IBM-PC.Experimentsshow that the processing speed on SIFCS is 50-100 times faster than that on IBM-PC/AT.Thismakes real-time correction of spectral interferences feasible.     

Zn(II) Complex Catalyzed Coupling Aquathermolysis of Water-Heavy Oil-Methanol at Low Temperature

A Zn(II) coordination complex was synthesized, characterized, and used for catalytic aquathermolysis of heavy oil at low temperatures for the first time. The effects of water content and catalyst concentration on aquathermolysis were investigated. And then a tri-component coupling aquathermolysis of waterheavy oil-methanol was designed and the reaction conditions were investigated. With the catalyst and methanol, the reaction occurred at temperatures as low as 180°C. The viscosity of the product was also substantially reduced from around 24 400 to 6420 mPa s by the decomposition of the large hydrocarbon molecules.     

Solving microstrip discontinuities by the measured equation ofinvariance

The measured equation of invariance (MEI) is a newly developed computational method which allows finite-difference (FD) or finite-element (FE) mesh to be terminated very closely to objects of interest. In this paper, the authors show how the MEI method may be applied to microstrip antennas and discontinuity problems. The authors demonstrate its use in general full-wave three-dimensional (3-D) microstrip problems, and give results for open-ended microstrip lines and microstrip bends     

扬子地块中、新生代构造演化对海相油气成藏的制约

扬子地块中、新生代宏观构造演化和动力学的差异制约着中、古生界海相油气成藏。通过对扬子地块印支期以来构造演化的分析和扬子地块不同段典型油气藏的解析,显示差异的构造演化造成扬子地块不同段的主要烃流体源、保存环境和成藏演化的不同。上扬子地块的烃流体源以油裂解气和干酪根裂解气为主,海相地层中整体封闭环境发育,存在古油藏-早期气藏-晚期气藏的成藏演化系列,具有早期成藏、后期转化、晚期聚气的成藏模式。中、下扬子地块的烃流体源主要为二次生烃和海相早期原生油气源,在陆相地层与海相地层中均存在封闭体系,具有反复的成藏、改造、成藏、破坏的成藏演化过程,在断陷反转区具有下生上储、原生残余油气藏以及二次生烃等成藏模式,而在反转断块区可能的成藏模式包括原生残余成藏和晚期次生成藏。     

大庆油田聚合物驱后微生物调剖先导性现场试验研究

针对大庆油田聚合物驱后进一步提高原油采收率的问题,从大庆油田聚合物工业化区块采出液中分离、筛选出DT-1和DT-2两株微生物调剖菌。菌种性能评价结果表明,所筛选的两种调剖菌不仅能够在聚合物驱后的油藏条件下有效地生长繁殖,而且与地层本源菌有很好的兼容性。物理模拟岩心实验结果表明,调剖菌对聚合物驱后的油层有很好的封堵调剖作用,封堵率可以达到70%以上;聚合物驱后利用微生物调剖,原油采收率可进一步提高3.9%(OOIP)。现场试验证明,聚合物驱后实施微生物调剖,能够有效改善注水剖面,增加吸水层位和吸水厚度,采油井见到明显降水增油效果,为聚合物驱后进一步提高采收率探索了一条有效的途径。     

固体火箭发动机红外辐射及抑制技术

红外辐射特性是评价固体火箭发动机特征信号的主要指标之一。本文着重分析了固 体火箭发动机的红外辐射源,并讨论了抑制红外辐射的主要技术途径。     

数值试井在白6-2井测试资料分析评价中的应用

数值试井是在近来发展的一项新的试井解释技术，具有处理非均质，复杂边界油气藏问题的优点，弥补了常规解析试井技术的不足。运用数值试井解释技术，结合动、静态资料，通过对白6-1断块白6-2井测试资料的综合分析评价，确定了储层渗流参数，落实了该气藏的边界情况，为该断块下一步开发提供可靠依据。     

前陆盆地前缘隆起带圈闭的形成及其含油气性——以塔里木盆地沙雅隆起为例

前陆盆地前缘隆起是一重要油气聚集带,其特殊的构造部位及复杂的动力学演化过程决定了在该部位有多种圈闭形成和分布。塔里木盆地库车前陆盆地由三叠系、侏罗系烃源岩发育而成的成油体系中的前缘隆起——沙雅隆起区经历了海西期挤压形成雏形、印支—燕山早期挤压定型、燕山晚期—喜马拉雅中期拱张、喜马拉雅晚期挤压拗陷等构造活动阶段,圈闭形成与构造活动相关,成藏与烃源岩演化、幕式构造运动有关,因此各圈闭带的含油气性与圈闭形成期和油气运聚期的匹配有很大关系,由此划分出沙雅前缘隆起区的3级有利构造带。     

Measuring Fingerprint Image Quality Using the Fourier Spectrum

The fingerprint image quality has a significant effect on the performance of automatic fingerprint identification system. A method for measure of fingerprint image quality based on Fourier spectrum is proposed. First the band frequency which corresponds to the global average period of ridge is searched. Then the quality score of the fingerprint image is computed by measuring relative magnitude of the band frequency components. The method is verified to have good performance by experiments.     

Si上Si1-xGex:C 缓冲层的载流子分布

用化学气相淀积方法在Si(100)衬底上生长了Ge组分渐变的Si1-xGex:C合金缓冲层.研究表明,较高温度下生长的Si1-xGex:C缓冲层中Ge的平均含量较高,其晶体质量要优于较低温度下生长的外延薄膜.载流子浓度沿衬底至表面方向逐渐上升且Si1-xGex:C缓冲层总体呈p型导电,存在一局域n型导电区,本文对其导电分布特性进行了分析研究.