文明寨极复杂小断块油田的开发历程及实施效果

文章分阶段性地总结了一个极复杂小断块油田─文明寨油田的地质特征和12年的开采历程，记叙了油田在开发过程中紧紧围绕井网完善、注水开发、提高水驱储量、最大限度地发挥油层潜力为目的，而采取的一整套行之有效的地质对策、生产措施和工艺手段，为不断改善油田开发效果所做的大量工作，获得了较好的开采效果。工作中总结得出的一些与之相适宜的经验，为探索极复杂小断块油田的开发，提供了一个难得的实例。     

梁柱组合节点的试验研究新进展

作为对Zandonini和da Silva等关于组合节点试验的早期综述的更新，本介绍了1997年以后的最新试验研究，并总结了组合节点在单调荷载和反复荷载作用下的破坏模式以及荷载形式、节点连接形式和节点域板的加劲方式对组合节点受力性能的影响。     

Quantitative Measurement of the Energy of Fracture of an Adhesive Joint Using the Wedge-Test

The cleavage of adhesive joints upon the introduction of a wedge allows a measurement of the energy of fracture. Careful attention to the design of the joint leads to quantitative results. We show the relationship between the length of fracture and the geometrical parameters of the joint, the variation of the resistance of fracture with humidity; we also show that the fracture length follows a Weibull statistics, allowing for quality control.     

Pb（Mg_（1／2）W_（1／2））O_3－PbTiO_3－PbZrO_3陶

研究了Ｐｂ（Ｍｇ＿（１／２）Ｗ＿（１／２））Ｏ＿３－ＰｂＴｉＯ＿３－ＰｂＺｒＯ＿３陶瓷的化学不均匀性和介电行为。ＥＤＳ分析得到：体系中存在富Ｗ和富Ｚｒ、Ｔｉ的两相，平均分子式为：Ⅰ相（富Ｗ相）：Ｐｂ（Ｍｇ＿（０．２７０）Ｗ＿（０．３６７）Ｔｉ＿（０．１７８）Ｚｒ＿（０．１８２））Ｏ＿（３．０９１）；Ⅱ相（富Ｚｒ、Ｔｉ相）：Ｐｂ（Ｍｇ＿（０．１０９）Ｗ＿（０．１８７）Ｔｉ＿（０．２０４）Ｚｒ＿（０．３４０）Ｏ＿（２．７５８）。两相居里点分别为：Ｔ＿（ｃＩ）＜－６５℃，Ｔ＿（ｃＩ）＝１０５℃，图像处理得到两相的面积比为：Ｓ＿Ⅰ＝６８．６４％，Ｓ＿Ⅱ＝３１．３６％。按３－３模型复合，得到两相体积比为：７６％、２４％。复合相的介电性能符合Ｘ７Ｒ要求，｜ＴＣＣ｜≤１２％，且介－温曲线与原材料有相同的规律。     

Fatigue crack growth thresholds-the influence of Young''s modulus and fracture surface roughness

In the present investigation it is shown that the effective fatigue threshold is uniquely correlated to the Young's modulus for a wide range of metallic and composite materials (ΔK_th,eff=1.64·10⁻²·E). It is also demonstrated that the crack closure level K_cl increases with increased roughness of the fracture surface . K_cl and are quantitatively related via the equation for steels with widely different mechanical properties and grain sizes (120 MPa<R_p<1100 MPa, 1 μm<λ<100 μm). This relation can be extended to materials other than steels (e.g. aluminium and WC-Co alloys) by normalising against Young's modulus. The roughness value represents the standard deviation of height of the fracture surface and is shown to be simply related to the length and angle distributions of the linear length elements constituting the fracture profile.     

“双灰”低强度混凝土桩复合地基的工程特性

“双灰”低强度混凝土桩是继ＣＦＧ桩之后在碎石桩基础上发展起来的又一新柱型。本文结合该桩在铜陵某工程中的应用．简要分析归纳了该桩所形成的复合地基的工程特性，为今后的进一步推广应用提供有益的参考。     

Experimental Values for the Elastic Constants of a Particulate-Filled Glassy Polymer

Young’s modulus and Poisson’s ratio have been measured simultaneously on a series of particulate composites containing volume fractions of filler up to 0.50. The composites consisted of small glass spheres imbedded in a rigid epoxy polymer matrix. The measured values were compared with theoretical values calculated from current theories. A recently generalized and simplified version of van der Poel’s theory provided the best agreement. It predicted values of Young’s modulus for composites with filler volume fractions up to 0.35. Measured values of Poisson’s ratio exhibited scattering, but were consistent with values calculated from van der Poel’s theory.     

SiCw／Al—Li复合材料的热处理强化效应

本文系统地探讨了热处理工艺对ＳｉＣｗ／Ａｌ－Ｌｉ复合材料的时效强化特性的影响。研究表明，ＳｉＣ晶须的加入显著加速了Ａｌ－Ｌｉ合金的时效析出过程，在１９０℃时效条件下，ＳｉＣｗ／Ａｌ－Ｌｉ复合材料在６ｈ就已达到峰值时效，提高固溶温度可以增加复合材料的峰值时效硬度，而增加固溶时间对峰值硬度无明显的影响。     

模式识别在复合材料研制中的应用

介绍了模式识别技术的概要及模式识别与复合材料探索的关系。以锆刚玉莫来石－氮化硼复合材料为例，给出了性能优良的参数优化区，找出了各影响因素之间的关系，并用实验进行了验证。     

实时多任务操作系统RTK86的设计

本文叙述实时多任务操作系统ＲＴＫ８６的设计思想及其特点，主要阐述了自底向上、面向硬件的实时内核的设计