多机紧耦合YH数控线切割系统通信与控制子系统的设计与实现

针对多机紧耦合YH数控线切割系统通信与控制子系统的设计与实现课题，讨论了在Windows环境下实现主CPU与从处理器控制板的通信与加工控制方法，对多机紧耦合系统中的通信代码设计、数控加工控制软件设计及其在YH数控线切割系统上的实现作了详细的叙述。     

紧包光纤室内防水型尾缆的制造

本文介绍一种新型紧包光纤室内防水型尾缆的结构、制造工艺和产品的性能 ,对产品制造中影响产品质量的因素也进行了分析     

调整轴承配合公差提高电机装配质量

电机轴承的装配精度是影响电机装配质量的主要因素之一,通过评价轴承室和轴承档的原设计思想和分析实际加工情况,提出以修改端盖轴承室及转轴轴承档的尺寸公差来取得理想的径向游隙的设计思想。实践证明,该方法能提高轴承的装配精度,达到改善电机噪声的目的。     

塔里木盆地塔中地区奥陶系油气成藏主控因素及勘探选区

通过对塔中地区钻遇奥陶系的60余口探井油气成藏及失利原因的综合分析,提出该区奥陶系油气成藏的主控因素为:①中、上奥陶统(相当于黑土凹组—萨尔干组的层位)主力烃源岩控制了塔中地区的油气分布,其主要分布于塔中凸起北部斜坡区;②4套碳酸盐岩储层(志留纪—泥盆纪古潜山岩溶储层、中奥陶世晚期—晚奥陶世早期古潜山岩溶储层、上奥陶统良里塔格组棚缘礁滩体埋藏溶蚀储层及下奥陶统内幕白云岩储层)的分布及其非均质性对成岩—岩性圈闭油气藏的形成起到了至关重要的作用;③二叠纪—早三叠世是塔中地区现今工业性油藏的主要成藏期;④圈闭及其封盖—保存条件决定了油气藏的规模。针对塔中地区奥陶系油气勘探选区及勘探步骤,提出具体的勘探工作可分3个层次进行:①近期主攻塔中I号断裂带南侧良里塔格组棚缘礁滩体成岩圈闭特大型岩性油气藏,兼探中央断垒带东段(塔中401—塔中9井区)下奥陶统古潜山岩溶储层油气藏;②对塔中10号构造带及其与中央断垒带之间的中奥陶世晚期—晚奥陶世早期形成的下奥陶统鹰山组中上部古潜山岩溶储层油气藏及塔中1—塔中7—塔中48井区下奥陶统古潜山岩溶储层油气藏进行勘探;③在存在沟通油源断裂的前提下,对满加尔凹陷区上奥陶统浊积砂岩—陆棚—三角洲—滨岸潮坪砂岩的构造及岩性圈闭油气藏进行勘探。     

Kaiser Effect in Rock Salt

Using the results of experiments with rock salt samples under various loading regimes as an example, the regularities of the Kaiser effect formation and manifestation in rocks with plastic properties are investigated.     

Changes in Properties of Rock Massifs Due to Underground Nuclear Explosions

Mechanical characteristics of rock massifs and constituent rocks in the zones of influence of underground nuclear explosions are experimentally determined. Zones with a different postexplosion structure of the rock massif and different properties of rocks are identified.     

侧向测井曲线分辨率匹配方法及其在松辽盆地的应用

对于松辽盆地中的一些较薄的致密砂岩储层,常规测井曲线,尤其是电阻率测井曲线,因为它们的纵向分辨率较低,往往会降低薄储层含油饱和度的计算精度。为此,探讨了应用“分辨率匹配”方法,将低分辨率的曲线提高为具有较高分辨率的曲线。并利用地层界面处的测井曲线变化率来提取实际的综合响应函数,而不是直接使用测井仪器的响应函数,因此使提高分辨率的处理更符合实际。最后给出了将深浅侧向电阻率测井曲线的分辨率提高到微球形聚焦测井分辨率的应用实例。     

Half tunnels along hill roads of Himalaya—an innovative approach

‘Half tunnels,’ which are excavated as overhangs within steep slopes of hard rocks, have an advantage over conventional full tunnels or open excavations in that they involve less cost and time. However, due to a lack of interest and their uncommon occurrence, the design and analysis of half tunnels have remained by and large unexplored. In the present paper, an effort has been made to study some of the half tunnels in the Middle and the Higher Himalaya in India. In addition to studying the geology of half tunnels, rock mass properties pertaining to Q and RMR for the rocks exposed around the half tunnel have been evaluated. The Markland test has been carried out to assess the probability of plane or wedge failures along the slopes in the half tunnel area. The results obtained have been again confirmed by analyzing the data with the help of a computer program . Both analyses suggest that the wedges are stable and that all the half tunnels analyzed are safe. Finite element analyses for different slopes and spans of half tunnels have been carried out to study the distribution of stresses around half tunnels. The range of maximum tensile stress concentration in the roof of half tunnels for different slopes is suggested.     

成岩作用过程综合模拟及其应用

该文根据成岩作用过程(process oriented)模拟的原理,综合考虑了温度、压力、流体和时间4种因素对成岩作用的影响,通过模拟成岩参数镜质组反射率、古地温、伊/蒙混层中蒙皂石的含量、自生石英百分含量和甾烷异构化率在时空上的变化规律,进而模拟一个地区的成岩史并预测成岩阶段的展布特征;然后根据成岩作用对生、储、盖层的控制作用以及成岩史与构造发育史的匹配关系,确定有利的勘探区域。最后,文中以渤海湾盆地南堡凹陷老爷庙地区深层为例说明了这一方法的应用。      

Construction for a class of smooth wavelet tight frames

From the inequality |P(z)|2 + |P(-z)|2 ≤1, assuming that both of the low-pass filters and high-pass filters are unknown, we design compactly supported wavelet tight frames. The unknowing of low-pass filters allows the design more freedom, and both the low-pass filters and high-pass filters have symmetries or anti-symmetries. We give the algorithm for filters with odd and even lengths separately, some concrete examples of wavelet tight frames with the length 4, 5, 6, 7, and at last we give the result of decomposing Lena image with them.