波列在时、空域的数值模拟试验及波要素的统计比较

利用Longuet-Higgins 波浪模型,分别用无因次JONSWAP谱和文圣常谱生成时间序列的表面波列与其相匹配的空间序列表面波列,作波浪特征波要素间关系的数值试验检验.由实测资料核对表明,以往有关工程上应用的理论和经验关系有的可信度高,有的似应作改进,特别不能将在时间序列上得到的有关经验数据贸然用在空间序列的表面波上.     

浙江沿海岛屿岩石磁性变化特征

本文利用CS_2-61型悬丝式磁力仪测定了浙江沿海岛屿岩石磁性参数,估算了各种岩石可能引起的磁力异常。根据测定成果提出,浙江沿海岛屿区域的岩石磁性是陆区的自然延伸。     

Identification and characterization of microbial agents in a bloom of floating microorganisms in the Hailang River, China in 2006

In February 2006, a large amount of unknown floating microorganisms appeared in the Hailang River (HR) in the City of Hailin, Heilongjiang Province, China. The microorganisms caused the river water fouling and threatened the clean water supply of the city. To identify the unknown floating organisms, morphological and histological inspection, PCR, cloning and sequence analysis were conducted. The results revealed that the unknown floating organisms in the river were a novel species that likely belonged to oomycetes in Saprolegniales. The organisms were named Saprolegnia sp. HL0602.