流量过程线分割方法的分析探讨

对流量过程线分割方法进行了深入的研究，讨论了对基流问题的认识，给出了较合理的基流定义；分析探讨了几种常见的流量过程线分割方法以及存在的问题，并对这些分割方法从物理成因和水文产汇流规律等方面进行了比较研究。     

卡尔曼滤波的初值计算方法及其应用

文章从气象应用角度论述了卡尔曼滤波在天气预报业务系统中应用的理论原理和计算方法。介绍了不同季节的试验结果，并分析了卡尔曼滤波的适应数值模式变化的能力和它的稳定性、可用性，展示了它的优越性和应用前景。     

隐伏铜镍矿异常灰色关联滤波圈定法

在新的铜镍矿异常圈定方法的研究中，我们把灰色系统理论与地质、物探、化探方法相结合，提出了以已知矿床上建立的参考数列系为灰色子波，对研究区的比较数列系进行关联度扫描，从中圈定关联度异常，预测矿床赋存部位的灰色关联滤波法．该方法在新疆哈密研究区作了隐伏铜镍矿床预测试验，在找矿信息的采集中，选取了地质、物探、化探标志１３个．预测实践表明，关联度异常的展布与铜镍矿床的位置相对应．根据研制的方法设计的ＺＫＹ１孔，在离地表１１０～１９０ｍ，钻遇５０多米铜镍矿，证实了该方法适用于大比例尺隐伏矿床预测．     

交会法测量多弹道方法研究

本文给出了用交会法测量多管高炮连发炮弹弹道的方法。此方法以最邻近相关原则进行同名点判定，通过三维坐标变换从交会得出的点集合中提取炮弹轨迹。     

实时战场环境仿真系统中三维地形模型简化的研究

对实时战场环境仿真系统中三线地面模型的简化技术作了较为深入的探讨，并提出一些具有创建性的算法。     

On the mechanical behaviour of lateral filter paper drains

Summary This note deals with the mechanical behaviour of lateral filter paper drains, used in triaxial testing in the laboratory. It has been found that the maximum influence of the filter paper drain on the measured deviator stress coincides with the development of folds during axial straining. Subsequent reuse of the same filter paper drain caused a significant drop of about 70% in the maximum value of the influence.     

用微机设计有源滤波器方法的研究

本文论述了一种用微型计算机对有源滤波器进行辅助设计的思想及其实现方法。其主要特点是:将多种滤波器的设计集成于一体;微机提供的设计结果是一幅标明了元件参数值的具体电路图,而不再仅仅是元件参数值。     

一种低成本、低精度SINS/GPS组合导航系统及试验研究

在SINS（捷联式惯性导航系统）与GPS组合时，航向角的可观测性较弱，经过卡尔曼滤波后，航向角误差虽有所改善，但仍呈发散趋势，当采用低成本、低精度SINS时，该趋势进一步加剧。为了抑制该发散趋势，针对某型低成本、低精度SINS硬件组成（包括AHRS（姿态和航向参考系统）与IMU（惯性测量器件））的特点，提出了利用AHRS代替SINS航向角信息的方法。实际静态与动态试验表明，利用该方法可有效地抑制组合系统航向角的发散趋势，定位精度较高。     

Benthic Oxygen Consumption and Organic Matter Turnover in Organic-poor, Permeable Shelf Sands

The high permeability of sediments and strong near-bottom currents cause seawater to infiltrate the surface layers of Middle Atlantic Bight shelf deposits. In this study, sandy sediment cores from 11 to 12 m water depth were percolated with filtered seawater on shipboard. Sedimentary oxygen consumption (SOC) increased non-linearly with pore water flow, approaching maximum rates of 120 mmol m⁻² d⁻¹ (May 2001) or 75 mmol m⁻² d⁻¹(July 2001). The addition of acetate to the inflowing water promptly enhanced the release of dissolved inorganic carbon (DIC) from the cores. DIC production rates were a linear function of acetate concentration, ranging from 100 to 300 mmol m⁻² d⁻¹ without substrate addition to 572 mmol m⁻² d⁻¹ with 100 mM acetate. The sediments also hydrolyzed a glucose pseudopolymer, and the liberated glucose prompted an increase of SOC. Our results suggest that decomposition rates of organic matter in permeable sands can exceed those of fine-grained, organic-rich deposits, when water currents cause advective interstitial flow, supplying the subsurface microbial community with degradable material and electron acceptors. We conclude that the highly permeable sand beds of the Middle Atlantic Bight are responsive within minutes to hours and efficiently operate as biocatalytical filters.