日长的十年尺度变化研究

用高精度的日长资料和由人卫激光测距（ＳＬＲ） 解算出的地球引力场系数Ｊ２ 的变化序列ΔＪ２ ,证明地球各圈层的物质迁移对日长１０ 年尺度变化贡献仅占日长１０ 年尺度变化的４ ％ ,可以忽略;认为１０ 年尺度变化主要来源于地球各圈层的内力矩或相对角动量部分,其优点是可以不顾及地球各圈层物质迁移复杂的物理机制     

广东茂名高岭土的特性与应用研究

本文对茂名高岭土资源的地质、矿石、选矿工艺、产品性能和应用等内容做了研究和论述。茂名高岭土是我国罕见的优质高岭土,作为涂料,高岭土的质量可与英国S.P.S.土和美国的ALPHACOTE土相媲美。茂名高岭土的开发与应用,不仅将改变我国依赖进口造纸涂料高岭土的不合理局面,而且有可能打入国际市场。     

围限压力下煤岩孔隙度的变化特征及应用

在对30多个煤岩样品在不同围限压力下测得的孔隙度进行研究的基础上,结合煤层甲烷开采的生产特点,讨论了煤岩孔隙度在围限压力下的变化特征。进而探讨了煤岩地下孔隙度的计算方法和煤岩有效孔隙体积压缩系数的变化特征。      

小刺豆荚软珊瑚化学成分研究

对采自南海南沙群岛永暑礁水域的小刺豆荚软珊瑚Lobophytummicrospiculatum的化学成分进行了研究,分离出7个化合物。其中化合物1为新的神经酰胺,命名为小刺酰胺。化合物3为22－表－孕马烷甾醇,首次从软珊瑚中分离到。     

The Kuroshio East of Taiwan and in the East China Sea and the currents East of Ryukyu Islands during early summer of 1996

Using hydrographic data and moored current meter records and the ADCP observed current data during May–June 1996, a modified inverse method is applied to calculate the Kuroshio east of Taiwan and in the East China Sea and the currents east of Ryukyu Islands. There are three branches of the Kuroshio east of Taiwan. The Kuroshio in the East China Sea comes from the main (first) and second branches of the Kuroshio east of Taiwan. The easternmost (third) branch of the Kuroshio flows northeastward to the region east of Ryukyu Islands. The net northward volume transports of the Kuroshio through Section K₂ southeast of Taiwan and Section PN in the East China Sea are 44.4×10⁶ and 27.2×10⁶ m³s⁻¹, respectively. The western boundary current east of Ryukyu Islands comes from the easternmost branch of the Kuroshio east of Taiwan and an anticyclonic recirculating gyre more east, making volume transports of 10 to 15×10⁶ m³s⁻¹. At about 21°N, 127°E southeast of Taiwan, there is a cold eddy which causes branching of the Kuroshio there.     

厦门海区潮间带海洋动植物共附生微生物的抗菌活性

从厦门海区潮间带石纯、浒苔、江蓠、海兔、海葵及鲨鱼肠道分离得２８９株共附生微生物,以８种敏感菌为指示菌,从中获得拮抗活性的幼苗２８株,放线菌１７株,真菌８株。拮抗细菌以假单胞菌（３９％）、弧菌（２５％）和芽直菌（１４％）为主,主要为抗革兰氏阳性细菌,抗真菌的菌株比例较低。拮抗放线菌分属于链霉菌和小单孢菌,其抗革兰氏阳性菌、阴性菌和真菌的菌株比例分别为６５％、４７％和２３％。拮抗真菌分青霉属和芽枝霉     

梵净山地区板溪群红子溪组钙质岩系中大理岩透镜体成因探讨

梵净山地区板溪群红子溪组钙质岩系中广泛发育大理岩透镜体。形成此岩系的控制因素可能为振荡频繁的构造运动或气候条件。通过仔细观察,发现大理岩透镜体有条带状、似层状断续产出2种,初步认为透镜体是成岩过程中差异性压实作用的产物,不是某种环境沉积的透镜体。     

INFLUENCE OF SPRING EQUATORIAL EASTERN PACIFIC SSTA ON THE SEASONAL CHANGE FROM SPRING TO SUMMER OF EASTERN ASIAN CIRCULATION

Based on the analysis of NCEP height, wind and OLR data, the influence of spring equatorial eastern Pacific SSTA on the seasonal change from spring to summer of eastern Asian circulation has been investigated. Results show that related to the warm (cold) spring SSTA in the equatorial eastern Pacific, the anomalous anticyclone (cyclone) circulation emerges around the South China Sea and the Philippines, the strong (weak) west Pacific subtropical high locates to the west (east) of its normal position, which induces to the late (early) onset of the South China Sea monsoon. The numerical simulations have also shown that the remarkable influence of spring SSTA in the equatorial eastern Pacific on the spring seasonal change of eastern Asian circulation will last till summer.     

通配式时空信息服务管理平台的设计与实现

为了解决自然资源信息化领域"一张图"后台管理模块重复建设及缺乏统一和通配式的时空信息服务管理平台的问题,以GIS技术为核心,基于群组与服务和角色与功能的权限控制,设计和实现了通配式时空信息服务管理平台框架,实现了用户、服务、群组、角色、功能、数据字典、日志等统一管理,实现了后台管理配置与前台时空数据可视化集成.一方面通...     

一种顾及各向异性的数字水深模型插值方法

提出了一种顾及各向异性的数字水深模型插值方法,通过局部水深信息解析海底地形的微地貌结构特征,构建了顾及距离和方向的水深插值模型。实验证明,所提方法较距离反比例平方加权法能更多地保留地形信息,同时具有更高的插值精度和插值稳定性。