大力开展直接找油找气技术研究

提出了直接找渍气的必要性和可能性,回顾了以往失误的原因,推荐了百灵软件,并期望各石油公司经理层能使用该软件,化较小的代价对地震资料进一步解释利用而提高钻井成功率,并最终降低油气成本。     

Quantification of aquatic sediment prokaryotes—A multiple-steps optimization testing sands from pristine and contaminated aquifers

The total number of prokaryotic cells in aquatic sediments is a crucial measure tightly linked to energetic constraints, microbial productivity, and ecosystem status. While counting cells in water samples is routine, reliable procedures for the determination of prokaryotic cells associated to aquatic sediments are especially needed. A protocol for the direct quantification of prokaryotic cell abundance in aquatic sediments was developed and tested with sandy material from pristine and contaminated aquifers. Individual steps required in sample preparation, including preservation, cell dislodgement, density gradient centrifugation providing sample purification, and staining, were critically evaluated and optimized. Quantification of cells is conducted by flow cytometry promoting a high-throughput sample processing. Although tested for only two different types of aquifer sediments, researchers may easily adapt the protocol for their individual samples and purposes, thus conducting a brief efficiency re-evaluation of individual steps highlighted in this study.     

控制论与人工影响天气 I: 人工增雨作业中的正反问题及最优调控

利用自然控制论的观点,重新审视了人工影响天气诸多方面的问题,提出了人工调控有限区域天气的正问题和反问题,并对最优调控问题,根据观测实例进行了分析讨论.结果表明,自然控制论是指导开展人工影响天气的一个好的理论框架,不仅要加强观测以了解自然降水过程,发展数值模式以更好的模拟实际降水过程,更需要开展反问题的研究;对最优调控的讨论表明,不能仅仅局限于有无催化可能,更应全面考虑降水云系的结构.     

确定震源位置,发震时刻及区域平均波速的最优化方法

本文详细讨论了利用井下和地面观测直达波到时资料联合确定震源位置,发震时刻及区域平均波速的最优化方法,该方法对震源深度及波速的确定给予特别的重视与处理。理论检验和实际算例表明,用该方法编制的程序定位精度高,计算速度快,可以在地层差异小的地区推广应用。     

Application of variational algorithms in semi- lagrangian framework

1.IntroductionWeatherforecastingmodelisasetofpartialdifferentialequations(PDE).Itshouldsatisfycertaininitial--boundaryconditions.Clearly,oneofthemostimportantimprovementsinweatherforecastingmodelistooptimizeitsinitialandboundaryconditions.Forthesimplicityofdiscussion,wemightregardthespatialboundaryconditionasakindofinitialconditioninspatialdimension.Aneffectivedataassimilationprocedureisrequiredinordertoutilizewidelycollectivedatafortheweatherforecastingmodelandfindanoptimalinitialcondition.…     

Implementation of displacement-dependent Barton-Bandis rock joint model into discontinuous deformation analysis

Discontinuous deformation analysis (DDA) has been widely applied in analyzing various rock engineering problems. As the joint strength play a vital role in the stability of jointed rock mass, this paper makes an attempt to implement the Barton-Bandis rock joint model into the DDA code to replace the original Mohr-Coulomb joint model. The developed Barton-Bandis joint model which is characterized by displacement-dependent shear strength is verified by experimental direct shear tests. An example of a block sliding on an inclined plane is used to demonstrate the capacity of the DDA-BB model in predicting the dynamic motion behavior of sliding blocks.     

浙江省高分辨率太阳直接辐射图的计算和绘制

以综合考虑天空因素和地面因素的起伏地形下太阳直接辐射分布式模型为基础,采用1∶25万高分辨率数字高程模型（DEM）数据和气象站观测资料,计算了100 m×100 m分辨率的浙江省气候平均月太阳直接辐射以及年直接辐射的精细分布,并分析了起伏地形下浙江省太阳直接辐射的逐月变化规律。结果表明：浙江省太阳直接辐射量以7、8月份最高,1、2月份最低,全省气候平均年太阳直接辐射量为2 083 MJ/m²;地形因子对起伏地形下浙江省太阳直接辐射的影响程度具有随季节变化的特性;局地地形对太阳直接辐射的影响程度随季节而变,在冬半年,太阳高度角较低的季节,局地地形的影响较为显著。     

Wind-Tunnel and Numerical Simulations of the Coastal Thermal Internal Boundary Layer

Wind-tunnel experiments in a thermally stratified wind tunnel and direct numerical simulations were performed to simulate the thermal internal boundary layer (TIBL) that developed over a coastal area in a sea-breeze flow. The results of the simulations were analyzed to investigate turbulence structure in the TIBL. To study the effects of the atmospheric stability over the sea on the TIBL, two vertical profiles of temperature were created in the upstream portion of the wind-tunnel experiment and the direct numerical simulation. Turbulence statistics of the TIBL changed significantly according to the temperature profile over the sea, indicating that the stability of the flow over the sea has a significant effect on the structure and turbulence characteristics of the TIBL. Furthermore, the TIBL heights were estimated from the vertical profiles of the local Richardson number. The estimated TIBL heights agreed with those predicted by a pre-existing relation, suggesting that both the wind-tunnel experiment and the direct numerical simulation accurately reproduced the growth of the TIBL.     

自然光辐射各分量卫星遥感图像的计算机生成原理与方法

本文讨论了利用卫星遥感数据和与之匹配的数字地面模型以及它们和光辐射各分量之间的定量关系，使用计算逐点分解遥感数字图像以生成成像瞬间直、散射辐射光照射下相应的卫星遥感图像的原理、方法。最后，阐述了生成的辐射各分量遥感图像特点和应用前景。