白垩纪大洋缺氧事件与富氧事件

白垩纪期间出现过多次大洋缺氧事件与大洋富氧事件，其沉积记录分别对应于黑色页岩和大洋红层。文章在国内外学者前期工作的基础上，对国际上白垩纪大洋缺氧事件和大洋富氧事件的最新研究进展进行回顾与总结，主要包括黑色页岩和大洋红层的岩石特征与成因、大洋缺氧事件和大洋富氧事件形成机制及两者之间的关联，希望能够为理解和预测未来的全球气候环境变化提供借鉴和依据。     

MICROBIAL STRENGTHEN OF COTTON PULP BLACK LIQUOR ANAEROBIC TREATMENT AND BMP MEASUREMENT

1INTRODUCTIONCotton pulp black liquor is regarded as a serious pollutant source in the paper-making industry. Major treatment of paper-making wastewater is aerobic process, such as activated sludge or biological filters, but most of these treatments can only be applied to the wastewater whose BOD5 is less then 800mg/L, therefore can not be used to dispose cotton pulp black liquor due to its characteristic such as dark color, rank smell, high alkali composition, complex organic pollutant…     

带电Dilaton黑洞的临界现象

研究了带电Ｄｉｌａｔｏｎ黑洞发生二级相变的条件，计算了临界质量，临界温度，临界视界事件位置和临界指数，并讨论了参数α对黑洞发生二极相变的影响。     

静态球对称黑洞Dirac场的辐出度

利用静态球对称黑洞Dirac场的统计熵,导出黑洞的辐出度,得到了黑洞的辐出度与黑洞视界温度的四次方成正比的结论。     

稻田养殖青虾试验报告

于2001年—2002年在霍邱县花园镇鲁台村利用10亩低洼水田，开展了稻田养殖青坏的小型试验与示范工作，当年即取得了明显的养殖效益，共收获稻3500kg，青虾283kg，实现亩产优质稻350kg，青虾28．3kg，亩均产值1415元，亩利润825元，投入产出比1：2．45。     

THE LIGNIN CONTENT IN BLACK LIQUID OF STRAW AS-AQ BY ULTRAVIOLET SPECTROPHOTOMETER

1INTRODUCTIONLignin is an aromatic compound. It has strong absorption of ultraviolet radiation but carbohydrates have little absorption. So we use an UV to measure the lignin quantitatively or qualitatively in black liquor from pulping[1]. A single benzen…     

Paleoceangraphic significance of redox-sensitive metals of black shales in the basal Lower Cambrian Niutitang Formation in Guizhou Province, South China

TheLowerCambrianblackshalesequenceoccursinSouthChinaalonganarc parallellinearbeltex tendingmorethan 16 0 0km .Theseorganic richblackshalesformedinvariousmarineenvironmentsandtypicallycontainhigheramountsofmolybdenum ,nickel,vanadium ,andanumberofothereconomical lyimportantmetalsthandoanyothersedimentaryrocks[1,2 ] .Therefore ,thestudyoftheseblackshaleshasnotonlypaleoceangraphicimplicationbutalsoe conomicsignificance .Marinesedimentssuchasblackshalearecom plexmixturesofdetritalphasesandseawat…     

关于黑洞的某些探索

黑洞是宇宙中看不见的星体．本文简述黑洞的形成及性质．黑洞不黑，说明事物不能绝对．     

造纸黑液的综合利用技术

针对造纸黑液的任意排放对水环境造成严重污染的现状，对碱法造纸黑液的处理方法(如碱回收、提取木质素、联产治理等)进行了介绍，综述了碱法造纸黑液综合利用新技术进展情况。