海上溢油基于GIS流场计算贴体坐标网格自动生成方法与技术研究

以海上溢油应急反应地理信息系统(GIS)为平台，采用贴体坐标变换，提出一种应用于海上溢油应急反应系统中流场计算的快速贴体网格生成算法，并实现了在GIS平台上自动生成以电子海图上实际海域为背景的贴体坐标网格。该网格生成方法和技术在溢油应急反应系统中，为实现流场计算提供了快速、直观、方便的条件。通过对渤海海域的两个算例表明，本文提出的贴体网格快速生成方法和技术能够满足海上溢油应急反应中流场计算的需要，取得了较好的效果。     

混凝沉淀-生物接触氧化工艺处理制革废水试验研究

采用PFS混凝沉淀-生物接触氧化工艺处理制革废水,试验结果表明:该工艺处理效果高,含硫废水的S2-去除率达到99.0%,综合废水的BOD5、CODCr、SS去除率分别为97%、85%、98%,出水水质达到<污水综合排放标准>(GB 8978-1996)二级标准.     

焦化废水中几种典型难降解有机物的特性研究及处理技术

介绍了焦化废水中吲哚，吡啶，喹啉三种典型难降解有机物的物理的物理化学性质，研究了这三种典型难解有机物的处理特性，简要介绍了几种选进有效的焦化废水的处理技术，总结了处理焦化废水中针对难降解有机物应注意的技术对策。     

糖蜜废水的物化处理与资源化利用的进展

综述了沉淀法，吸附法，电化学法，磁分离法，高级氧化法AOP，蒸发浓度法等物理方法处理糖蜜废水的效果，资源化利用主要介绍了利用浓缩液化进行深加工处理生成高附加值的精细化学品和饲料酵母的生产，指出物化法可用于糖蜜废水的预处理或深处理，资源化利用应为治理糖蜜废水的一个重要方向。     

汽流喷雾干燥法在中小型锅炉烟气脱硫中的应用

本文以４ｔ链条炉为对象，介绍了汽流喷雾干燥法中在小型锅炉烟气脱硫中的应用，着重分析了汽流式雾化器，气体分布器，脱硫搭及相配套的设备，确定了最佳操作条件。     

中小型燃煤锅炉湿法除尘废水水质净化技术研究

介绍了利用稀土陶瓷和燃煤炉渣净化锅炉湿法除尘废水的技术研究．并列举实例介绍了该技术在工程中的应用．     

Mosaic trisomy 17 in amniotic fluid cells not confirmed in the newborn

A case of true fetal mosaicism 46,XY/47,XY, + 17 was diagnosed in amniotic fluid cells. After genetic counselling and unsuccessful periumbilical blood sampling the pregnancy continued to term, and a healthy male infant was born. Lymphocytes of the newborn had a normal karyotype. Follow-up of the child at age 18 months showed normal physical and mental development indicating that the trisomic cell line was restricted most probably to the extra fetal tissue.     

火电站脱硫新模式--燃前煤粉在线脱硫

1999年全国二氧化硫排放总量l857万t，而火电厂SO2排放810万t，占全国SO2排放的43．6％。火电站脱硫已成为研究的热点。对火电站脱硫新模式-燃前煤粉的摩擦电选在线脱硫进行了研究论述：(1)应用摩擦电选技术与电站制粉系统集成进行火电站燃前煤粉在线脱硫降灰的原理；(2)该技术的合理性及可选性；(3)实现燃前煤粉在线脱硫降灰对锅炉燃烧特性的影响；(4)该技术的应用前景。     

Trisomy 20 mosaicism

A further case of trisomy 20 mosaicism found at amniocentesis is presented. Pregnancy was terminated, the fetus showed facial dysmorphia and minor cardial and renal anomalies. 19 published reports of true trisomy 20 mosaicism at amniocentesis are reviewed. Five pregnancies resulted in obviously normal newborns. The significance of mostly minor anomalies found at autopsy of 7 fetuses remains unclear. With regard to genetic counselling the significance of trisomy 20 mosaicism is summarized as follows: (1) true trisomy 20 mosaicism in amniotic fluid cells reflects mosaicism of the fetus; (2) severe malformation is not a major feature of trisomy 20 mosaicism; (3) the risk of mental retardation is still undetermined, due to limited experience. However, there is no definite proof that the condition is harmful at all.     

Short communications normal fetal growth despite persistent amniotic fluid leakage after genetic amniocentesis

Two women not only lost relatively large amounts of amniotic fluid immediately following genetic amniocentesis, but continued to lose fluid for the remainder of their pregnancies. Periodic ultrasonographic assessment confirmed normal fetal growth and presence of some amniotic fluid. Both women were delivered at term of normal offspring who showed no evidence of fetal deformations. Although amnionitis is a risk, cautious surveillance may permit continuation of pregnancies complicated by copious or persistent amniotic fluid leakage following genetic amniocentesis.