难降解有机废水处理新技术

介绍了光氧化法、超临界氧化和低温等离子体化学三种废水处理新技术的原理,国内外研究的现状和未来的发展前景,分析了这些新技术在优化污染物废水处理方面得到工业应用所必须解决的主要技术问题.     

Prenatal application of fluorescent in situ hybridization (FISH) for identification of a mosaic Y-chromosome marker,IDIC(Yp)

An amniocentesis was performed at 13.3 weeks' gestation for advanced maternal age. A mosaic sex chromosome pattern was found: of 50 cells examined, 34 had a 45,X karyotype. In 14 cells with a modal number of 46, a recognizable Y was substituted by a small non-fluorescent marker. C-banding identified the marker as an isodicentric in 12 cells. In two cells, the non-fluorescent marker appeared to be monocentric and looked like a non-fluorescent del (Yq), but could have been an isodicentric Y with inactivation of one of the centromeres. Two cells with a modal number of 47 showed two copies of the monocentric marker. Fluorescent in situ hybridization with an alpha satellite Y-specific centromeric probe confirmed the Y-chromosome origin of the markers and allowed for more accurate prenatal diagnostic information.     

模糊数学法在环境质量评价中的应用 --以天津滨海新区为例

模糊评价能有效的解决评价标准边界模糊和监测误差对评价结果的影响,具有一定的科学性、合理性.运用模糊数学法对天津滨海新区环境质量各因素进行定级评价,将各因素评价结果采用公式计数法进行二级赋权,较为客观评价了总体环境质量级别,为综合治理提供科学依据.     

阳极材料对医院污水电化学消毒处理效果的研究

分析了三维电极法处理医院污水的影响因素，探讨了阳极材料、电流密度．水力停留时间、空气流量、极水比等因素对消毒效果的影响，确定在不加化学药剂、不影响水质和低耗能条件下电化学消毒试验的最佳使用条件。结果表明，在用涂有贵金属（钌、铂、铱）氧化物的钛板作阳极，不锈钢板作阴极，电流密度为6mA／cm^2、水力停留时间为15min、空气流量为40L／h、极水比为1．0的试验条件下，消毒后污水中总大肠菌群数〈500CFU／L。电化学法消毒处理医院污水方法简单有效、运行费用低，无二次污染．处理后的污水达到国家一级排放标准（GB8978—1996）。     

一种化纤废水处理的运行及分析

化纤废水含有各种难降解有机物，国内外一直未能提出一套较好的处理方法，本文介绍了一种化纤废水的研究，处理工艺及其主要设计参数以及运行管理，事实证明了这种方法是可行的，其具有处理效果稳产，产泥量少，具有一定的消泡作用等优点。     

废水处理的新趋势与新技术

介绍了我国水污染方面的情况、水污染治理的常用技术及基本工艺流程、水治理技术发展的新趋势和几种水处理的新技术。对这些新技术的基本原理、研究方向与前景作了阐述。     

THE COMPARISON BETWEEN SOUTHERN ANDES AND ANTARCTIC PENINSULA A REVIEW, NEW PROGRESS AND PROSPECT

The comparative research of southern Andes and Antarctic Peninsula is a key to explain the break-up of Gondwanaland. "Cuspate" , "Arcuate", "Continuing". "Overlapping" and "Modified Gulf of California" model illustrated, to some extent, southern Andes-Antarctic Peninsula relations. However, those models did not discuss the dynamic mechanism and specific evolution process of the two Plates' divergence. "Wedge" model, on the bases of eight geological evidences including tectono-stratigraphic unit, strike-slip fault system, carthquake, igneous activity and so on, not only discussed southern Andes-Antarctic Peninsula relations and its evolution process, but also presented an argument that Scotia minor-plate, which once acted as one part of Pacific Plate wedged in between the two Plates and gave rise to the break-up of Gondwanaland-The argument represents the the latest achievement made in geological research there. On the whole, all models mentioned-above are, more or less, of one-sided view. Where the dynam     

黄磷尾气现场脱硫试验

黄磷尾气的主要成分是CO，其中含硫杂质主要以硫化氢的形式存在。测定了黄磷尾气中硫化氢、氧气的含量，分别采用吸收、吸附工艺及其组合工艺对黄磷尾气进行了现场脱硫试验，得出了最佳的黄磷尾气净化脱硫工艺，即吸收、活性炭变温吸附。出口气中H2s的质量浓度为1—5mg/m^3，净化效率达到99．7％。     

FRACTAL DIMENSION ANALYSIS APPLIED TO THE 7 DRAINAGE BASINS AND THE FLOOD IN CHINA

Foreword　Asoneofthethreegreatdiscoveriesin 1 970s ,thefractaltheoryhasbeenwidelyappliedinmanyfieldsconcerningthesciencesofnatureandthehumanities .Atpresent ,thefractaltheoryhasbeenappliedintherelatedanalysisofwatersystemordisaster .However ,thestud iesonnatureofrelationshipbetweenthewholewatersysteminChinaanddisasterfractalanaly sisarestillintheirinitialperiod .Thepaperpresentsafractaldimensionof 7drainagebasinsandthefloodinChinaaswellastheirpossiblerelations .Itishopedthatthepaperwouldbehe…     

神经网络及其在水库调洪演算中的应用

结合洪水灾害管理的特点建立了水库调洪演算的人工神经网络模型，阐述了其基本原理及算法，并结合某水库调洪演算实例说明了其应用。