基于Rocks的高性能集群平台搭建与应用

高性能计算是实现大规模并行计算的有效途径,本文论述了如何构建一个高性能集群,介绍了集群安装工具--Rocks,分析Rocks安装机制、特点以及Rocks如何管理集群,利用Rocks搭建了一个基于Linux的高性能集群平台,并在该平台上实现了量子化学软件Gaussian的应用,进一步测试了Rocks系统的性能。     

Rocks集群应用系统发布技术研究

Rocks集群在生命线工程、大数据和高性能计算处理方面的应用越来越广泛,但是集群应用系统的发布更新存在操作难度大、易发生错误等问题.为了解决这些问题,本文分析了RPM包发布管理工具的实现过程,研究了Roll结构,提出了Roll构建和安装发布技术,简化了集群应用系统的发布流程.实验结果表明,本文的集群软件发布技术是有效的,为Rocks集群应用系统发布提供了高效、稳定、易操作的解决方案.     

超基性岩样中痕量希土元素的中子活化分析

文章介绍了用中子活化分析法分析超基性岩样中La,Ce,Nd,Sm,Eu,Tb,Yb,Lu等八个元素的全过程。分析了橄榄岩、斜辉辉橄榄岩等八种岩石样品,用我国地质标样DZ∑-1,GSD-7,DZ∑-2,及国际标样BCR-1验证了方法的可靠性。检出下限10~(-10)g/g。     

Relationship between texture and mechanical properties of granites, central Sweden, by use of image-analysing techniques

Rock texture is of great importance in understanding the mechanical properties of a rock. Los Angeles and studded tyre tests were used to assess the mechanical properties of homogeneous acidic plutonic and volcanic rocks and these properties were related to the rock texture using image analysis and the more common optical microscopy. The image-analysing technique was based on SEM/BSE images, where the perimeter was measured on each mineral phase in order to numerically quantify a texture parameter. The results demonstrate that rocks with high perimeter values have the best resistance to fragmentation and abrasion. A high perimeter corresponds to fine-grained rocks where the minerals occur as individual grains rather than monomineralic aggregates. An increase in grain size and the formation of mineral aggregates of the same phase have a negative effect on the quality of the rock. Electronic Publication     

Lateral Loading of a Rigid Rock Socket Embedded in a Damage-Susceptible Poroelastic Solid

The paper presents a computational assessment of the influence of damage on the behavior of a rigid rock socket embedded in a fluid-saturated poroelastic solid. The iterative computational scheme takes into consideration the irreversible alteration in the fluid transport characteristics that takes place as a result of damage and the stress dependency of the isotropic damage process. Numerical results illustrate the influence of the stress-state-dependent damage process on transient consolidation response of the rock socket head displacement.     

利用测井资料进行井眼崩塌现象的分类与识别

从岩石力学的角度详尽分析了井眼崩塌现象的成因和结果，并从地层倾角测井获得的双井径曲线响应特征中提取有效特征，对井眼崩塌、井眼缩径、井眼冲蚀和井眼完整等现象进行了归类。提出了用模糊隶属度函数建立井眼崩塌现象的模糊规则，并提出了利用这些模糊规则和自组织神经网络对井眼崩塌现象进行两步分类和识别的新方法。通过实际资料的处理验证了方法的有效性。图４ 参３（ 邹冬平摘）     

Determination of the ultimate tensile strength of rocks by the unaixial compression test data

Based on the hypothesized material-independent relationship of the normal and shear stresses on the plane of shear, the authors have plotted an envelope of Mohr’s circles, that represents a rock strength condition in the compression stress domain. The relation of the maximal principal stresses extends to the tension domain as a hyperbola, and its parameters can be obtained only in the non-uniform triaxial compression tests. The hyperbolic equation derived provides, in particular, the ultimate tensile strength of rocks. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 3, pp. 40–45, May–June, 2009.     

临清坳陷东部石炭——二叠系烃源岩特征

临清坳陷东部石炭—二叠系煤系地层分布广泛。本文主要利用高古4井、高古7井和德古2井对研究区烃源岩进行了分析,对烃源岩类型按有机碳含量进行了细分,认为临清坳陷东部石炭—二叠系烃源岩在不同构造区,有机质类型存在较大差异,为该区煤层气成藏研究提供了依据。     

辽河西部凹陷J311-J312井区沙一、二段烃源岩生烃潜力研究

在盆地勘探阶段,生烃凹陷的确定和生烃潜力的评价显得尤为重要。在对地化资料进行分析的基础上,从烃源岩地质特征和地化特征两方面,对辽河西部凹陷J311-J312井区沙一、二段烃源岩生烃潜力进行了综合评价。研究结果表明,研究区沙一段、沙二段烃源岩主要发育于深湖-半深湖相,烃源岩厚度大,有机质丰度高,类型好,但成熟度偏低,目前主要处于低成熟-成熟阶段,刚刚进入大量生烃的成熟阶段,具有一定生烃能力。     

新型陶瓷原料--绢英岩在生产中的作用机理

绢英岩作为一种新原料上世纪八十年代在国内部分地区开始使用，它属于花岗变斑岩型，原矿呈泛青的白灰色致密块状，有滑腻感。由于绢英岩成分稳定，有害杂质含量低，以及烧结范围宽、烧后白度高等优点，决定了它在陶瓷工业上具有广泛用途。本文从绢英岩的矿物组成、结构特征出发，探讨其在陶瓷生产中的作用机理，以对该原料的广泛使用奠定一定的理论基础。