THE LATE CENOZOIC FORMATIONS OF S.E.SHANSI

Up to 1931 nothing was positively known concerning the Cenozoicformations eventually preserved in S.E.Shansi.The large area bounded by     

ON LOPINITE,A NEW TYPE OF COAL IN CHINA

To the east of Nanchang,the capital of Kiangsi Province,there cropsout a continuous belt of Permian coal series~1 trending approximately in thedirection from N.E.to S.W.Broadly speaking,this coal belt forms a synclinal     

A COMPREHENSIVE STUDY OF MUD CRACKS AND OTHER SIMILAR STRUCTURES

In text-books of geology and in most papers dealing with geologicstructures, mud cracks seem to have been regarded as merely one kindof structures developed only in soft sediments, such as muds or clays. Itseems also that the studies of mud-crack structure have been mostly     

Theoretical wind wave frequency spectra in deep water——Ⅱ. Comparison and verification of spectra

In this part of the present paper the theoretical spectra derived in Part I are compared with the JONSWAP spectrum and field data, the agreement being encouraging.     

海上净化实验舱

已报道的关于大洋水中某些痕量金属的基线浓度,总的说来是随着经历的年代而一直在减少的。这样,在文献中看到的大部分有关痕量金属浓度的数据就似乎没有什么价值,而只不过是污染水平的指标罢了,因为,实验室之间精心的相互校正实践已证明,只有严格净化的采样、操作和分析技术才会产生准确的数据。     

与辐射对流过程有关的热带环流:用全球谱模式所作的数值试验

一、引 言 在热带地区,太阳辐射和云辐射的互相作用过程对于数值天气预报来说是头等重要的。1983年 6月 WCRP的报告指出,目前的数值试验确认:时间平均热带环流的模拟(热带环流的时间平稳模拟)对对流和对流与辐射的相互作用是十分敏感的。这些物理过程的主要作用是通过加强的水分循环使对流加热加强,而水分循环的加强是由热带地区的水汽供应的增加和降水率的增加所造成的。 这篇文章描述了欧洲中期天气预报中心全球谱模式两个旬积分的结果。其目的是为了确定在热带地区的对流加热和降水率对辐射的作用。每一个模式的积分是从1979年 6月 11日格林威治时间12点的初始状态开始的,并且适用于若干天以后发生的印度夏季风迅速加强的时期。     

Biochemical and histological responses in mussel (Mytilus edulis) exposed to North Sea oil and to a mixture of North Sea oil and alkylphenols

Several environmental chemicals are suspected to be responsible for adverse health effects on the reproductive system in various organisms. During this work, environmentally relevant concentrations of North Sea oil were used alone or in combination with alkylphenols and additional PAH to study the effect on vitellogenin-like protein expression and gonadal development in mussels. North Sea oil (0.5 ppm) induced the expression of phospho-proteins in both sexes indicating that some compounds are oestrogen-mimics. This induction was not seen in samples dosed with the mixture but signs of toxic effects were observed in the gonads. Indeed, numerous degenerating ovarian follicles in females and foci, similar to vertebrate melanomacrophage centres, were observed in testes.     

PRELIMINARY REPORT ON SUSPENSION CULTURE OF CLON OF PORPHYRA YEZOENSIS CONCHOSPORANGIAL FILAMENTS IN THE PRODUCTION OF CONCHOSPORES FOR PURPLE LAVER AQUACULTURE

InSpringof1990,carposporesofboyeamsiswerecollected,gendnatedandgrewuptothefree-livingConchocelis,whichproducedconchosporangialfilaments.Allexperimentswereconductedincultureboxeswithlightandtemperaturecontrol.Theresultsofanumberofexperimentsareasfollows:1.Afterthedevelopmentofconcho-sporangialfilamellts,theycanbecultivatedalone,andnormallydevelopanddischargealargenumberofconchospores.2.Thesuspensionconchosporangialfilamentusedinpresentworkhavebeenvegetativelypropapatedmanytimesinseveralyears.…     

美国长岛湾缺氧现象及其治理对策综述

近年来,缺氧(hypoxia)现象成为世界范围大洋沿岸水域的一个主要环境问题.本文介绍了由美国环境保护署协调进行的“长岛湾研究”项目对缺氧现象的成因、影响及其与海洋富营养化的关系所做的研究,同时介绍了治理缺氧所采取的对策.     

对地球大气和表面研究的卫星数据处理和分析软件系统

一、引 言 在地球科学发展中现在正出现两个重要的趋势。一个是传统的研究地球部分的定向学科的方法。它正慢慢地让位於更全面的多学科的方法,该方法把地球和大气看成是一个动态的综合系统。另一个是空间观测方法,或更确切地说是卫星遥感,它正成为地球科学各学科如:海洋学、气象学、生物学、地质学和地球物理学的标准研究工具。 鉴于这种趋势,加州空间研究所一直都在开发卫星数据处理和分析软件系统,来支持多学科的及综合研究计划。该系统叫做OASIS(海洋大气卫星图象系统),它有助於处理地球的大气和表面(陆地和海洋)的科研及教学活动的开展。