电信企业信息化统一模型构建策略

电信企业信息化的实质就是赋予电信企业精细化的企业资源整合能力，本以此认识为出发点，通过定义基本的信息化业务元素，需求参数和基本信息处理机制，构建出带有行业共性的电信企业信息化统一模型，该模型针对目前电信企业信息化中常见的和潜在的问题提供了有效的解决措施。     

FCC装置三旋效率低的原因及对策

针对中国石油抚顺石化分公司石油二厂催化裂化装置再生器第三级旋风分离器(三旋)效率低的问题,对三旋的运行状况进行了分析和核算,找出了原因,认为主要问题是烟气中催化剂细粉较多、粒度大,以及三旋单管烟气线速较低和单管排尘锥体处粉尘返混严重.采取堵管和排尘锥体开孔的措施后,实际运行结果证明,三旋效率提高了,三旋出口烟气中催化剂浓度、粒度达到标准,保证了烟气轮机的安全平稳运行.     

Formation of Arrayed Droplets by Soft Lithography and Two-Phase Fluid Flow, and Application in Protein Crystallization

This paper presents an overview of our recent work on the use of soft lithography and two-phase fluid flow to form arrays of droplets. The crucial issues in the formation of stable arrays of droplets and alternating droplets of two sets of aqueous solutions include the geometry of the microchannels, the capillary number, and the water fraction of the system. Glass capillaries could be coupled to the PDMS microchannels and droplets could be transferred into glass capillaries for long-term storage. The arrays of droplets have been applied to screen the conditions for protein crystallization with microbatch and vapor diffusion techniques.     

EBSP study of the annealing behavior of aluminum deformed by equal channel angular processing

Commercial purity aluminum (99.5%) was fabricated by equal channel angular pressing (ECAP) up to total accumulated strains of approx. 10. The annealing behavior of material deformed to total strains of approx. 1 and 10 was investigated, using heat treatments of 2 h at various temperatures from 100 to 500 °C. The microstructure of the annealed materials was characterized using the electron back-scatter pattern technique. A number of parameters were determined including the distribution and average values of both the boundary spacings and misorientations. For samples deformed to a total strain of 1, annealing resulted in discontinuous recrystallization. For samples deformed to a total strain of 10, annealing resulted in microstructures exhibiting characteristics of both uniform coarsening and, in a number of places, of discontinuous recrystallization. An attempt was made, based on the boundary spacing distributions, to separate these two components. The grain size after annealing was still however small, being just 6.4 μm after 2 h at 300 °C.     

垂直铺膜防渗技术在大堤防渗加固工程中的应用

在高水河大堤防渗加固工程中,根据堤身的实际情况,结合地质和施工条件,采用压力灌浆及砼地下连续墙相结合的方法来进行垂直铺膜防渗加固。通过对垂直铺膜前后测压管水头对比研究,分析了大堤外观干、湿土变化和大堤内干土质量密度、密实度的变化,说明了垂直铺膜防渗技术在大堤防渗应用造价低,防渗效果显著,有利于改善大堤的稳定性和安全性。垂直铺膜防渗技术应用于临时防渗及平原低水头水库和河道堤防等工程,实用性强,具有推广价值。     

连续波雷达测距中的解模糊技术

研究连续波雷达测距中的距离模糊问题，分析几种常用解模糊方法的性能，并讨论参差比的选取对测距范围的影响。     

Moving Least-Squares Differential Quadrature Method for Free Vibration of Antisymmetric Laminates

In this paper, the moving least-squares differential quadrature (MLSDQ) method is employed for free vibration of thick antisymmetric laminates based on the first-order shear deformation theory. The generalized displacements of the laminates are independently approximated with the centered moving least-squares (MLS) technique within each domain of influence. The MLS nodal shape functions and their partial derivatives are computed quickly through back-substitutions after only one LU decomposition. Subsequently, the weighting coefficients in the MLSDQ discretization are determined with the nodal partial derivatives of the MLS shape functions. The MLSDQ method combines the merits of both the differential quadrature and meshless methods which can be conveniently applied to complex domains and irregular discretizations without loss of implementation efficiency and numerical accuracy. The natural frequencies of the laminates with various edge conditions, ply angles, and shapes are calculated and compared with the existing solutions to study the numerical accuracy and stability of the MLSDQ method. Effects of support size, order of completeness of basis functions, and node irregularity on the numerical accuracy are investigated in detail.     

Wavelet-based Rayleigh background removal in MRI

Rayleigh distribution governs noise in 'no signal' regions of magnetic resonance magnitude images. Large areas of background noise in MRI images will seriously affect their effective utilisation. A new wavelet-based algorithm is presented that can work efficiently either as a standalone procedure or couple with existing denoising algorithms to significantly improve their effectiveness.     

义东油田大81-4块咸化湖泊生物礁储集层特征

义东油田位于济阳坳陷沾化凹陷义东断裂带，该油田大81—4块沙四段成化湖泊生物礁复合体自下而上可分为5个小型礁体(2个藻礁，3个藻礁丘体)。根据岩心观察、镜下鉴定和钻井等资料，主要有3种岩石类型：白云岩类是下部藻礁的主体，灰岩类是礁丘相的主体，其它岩类(主要为碎屑岩类和盐岩)分布局限；储集空间主要有7种类型(粒间孔隙、粒内孔隙、铸模孔隙、生长骨架孔隙、角砾间孔隙、晶间孔隙和构造裂缝）。该生物礁复合体位于凸起边缘的断阶带平台，发育于有陆源碎屑供给的半清水水域，紧邻深水区。礁体形成后经历了深埋藏成岩期，对储集空间演化影响最大的成岩作用是白云石化作用、溶解作用、新生变形作用和胶结作用。预测大81—221井区及附近的2个枝管藻白云岩礁体为最有利的勘探目标，义东22井附近生物礁也有良好的勘探前景。     

应用激光活化饵料藻种的研究

应用Nd:YAG激光(波长1.06μm,功率5w,照射时间0.5-3 min)和Ar+激光(波长488nm,功率70mw,照射时间5-15min)对长期保存的不同保存形式的塔胞藻(Pyramidomonassp.)进行辐照处理。研究了不同剂量激光辐照对藻体生长和叶绿素含量的影响。实验结果表明:照射剂量为60s的Nd:YAG激光及剂量为15min的Ar+激光对液体保存形式的藻种有较明显的促长效果,接种后这两种激光处理组的比生长速率分别较对照提高达53.33%和28.89%,叶绿素含量分别增加73.33%和65.69%。两种激光对液体保存藻种的活化效果均好于固体保存种。