污泥加药调质中的有关问题探讨

污泥的加药调质条件对脱水性能的影响很大，在加药调质中，根据污泥性质，正确选择凝聚剂和絮凝的种类、规格和投加量是很关键的。在具体的调质工艺过程中，还有一些值得注意的环节。污泥脱水效果不佳，并不一定是脱水机的性能、污泥性或调质药剂等原因所至，有可能是在具体的调质工艺操作中的一些易忽视的环节出了问题，而这些对污泥调质效果往往是至关重要的。     

藏北地区油气资源地球化学特征及其找矿方向

通过最新的遥感油气勘查,结合已有的油气地质和油气地球化学资料,对藏北地区油气资源进行了初步评价,认为该地区油气资源总量为40～60亿t左右。勘查重点放在羌塘地区的西北部,尤其是地球化学异常低值区具有大型推覆体构造的复合部位,最有希望找到亿吨以上整装油气田。     

四种南京地产栽培野菜蛋白质营养价值的评价研究

4种传统野菜已在南京地区规模栽培利用。采用模糊识别法和氨基酸比值系数法,分别以鸡蛋蛋白质为标准蛋白 ,以WHO/FAO氨基酸参考模式为评价标准 ,对这4种野菜蛋白质营养价值进行了评价 ,并与6种常见蔬菜蛋白进行对照比较。结果表明 ,4种野菜蛋白质含量为2.3 %～5.0 % ,蛋白质中氨基酸种类齐全 ,其含量为77.73 %～89.36 % ,必需氨基酸占总氨基酸量的36.72 %～42.04 % ,第一限制性氨基酸为含硫氨基酸 (Met +Cys)。其蛋白质营养价值分别优于同科的一些常见蔬菜。     

Prenatal tests for Sanfilippo disease type B in four pregnancies

We report the prenatal diagnosis of two fetuses with Sanfilippo disease type B. In both pregnancies there were excessive amounts of heparan sulphate in amniotic fluid and the activity of N-acetyl-α-D-glucosaminidase was undetectable in cultured amniotic fluid cells. The predictions were confirmed by enzyme assay of cultured skin fibroblasts from the aborted fetus or the affected infant. The disorder was excluded for two other pregnancies at risk and the predictions are considered to be correct because of the normal progress of the healthy children.     

锅炉鼓引风量的合理配比与提高锅炉热效率和环保效果的研究

通过对锅炉鼓引风量配比进行适量调整和对原除尘器S挡板的改进，达到了提高锅炉热效率和环保效果的目的，同时提出了一些相关建议。     

Ecological compensation mechanism for urban green land and its application in Shanghai,China

Urban green land compensation plays an important role in county development, ecological environment management and many other fields. The concept, methods and principles of urban green land are introduced in this paper. According to the pay fee method, the value and ecological function of various types of urban green land were analyzed. The cost-benefit analysis method (CBAM) was used to estimate different external diseconomy benefits caused by green land loss. The authors applied CBAM to estimate such benefits in the case of Shanghai, China, and calculated the actual compensation value for green land. Results indicated that in 2002, the compensation value for the green land of Shanghai was RMB 8.58 × 10⁵ Yuan/hm². Translated from Urban Environment & Urban Ecology, 2006, 19(3): 4–6, 11 [译自: 城市环境与城市生态]     

State-By-State Carbon Dioxide Emissions from Fossil Fuel Use in the United States 1960–2000

Time series of fossil fuel carbon emissions from 1960–2000 for each of the U.S. states and the District of Columbia are presented and discussed. Comparison of the nationally summarized results with other national datasets shows generally good agreement, usually within 2%, and gives insight into the quality of all the data series. Our extension of the state-by-state emissions estimates back to 1960 reveals patterns of change that are coherent across states and can be related to historic events such as energy crises and federal legislation. Most notable is the changing pattern of coal usage, as coal-producing states produce increasingly more energy (mostly for electricity) for other states so that per capita CO₂ emissions diverge for states that import as opposed to those that export electricity. The decline in carbon emissions from petroleum products following the 1970s is also evident. Per capita emissions range over an order of magnitude for the different states. The data suggest that differences in per capita emissions arise from differences in many technological, physical, resource, social, and economic factors. The data presented here and the few correlations briefly noted pose a challenge for trying to use per capita emissions as a measure of equity or to provide mitigation targets.     

赣南W、Sn多金属成矿区划及找矿方向

赣南地区是南岭成矿区(带)中重要的W、Sn多金属矿产聚集地,已探明黑钨矿储量和产量均居世界第一。区内主要矿化元素为W、Sn、Pb、Zn、Ag、Au、Nb、Ta、Mn等。主要矿化类型为石英脉型、破碎蚀变岩型钨矿,斑岩型、层间隐爆裂隙带型锡矿,隐爆角砾岩型铜矿,形成了与燕山期岩浆活动有关的钨锡多金属成矿系列。新矿化类型是赣南中生代岩浆—火山岩区找矿的重要方向。     

我国石化企业建立环境管理体系的意义及建议

介绍了ＩＳＯ１４０００环境管理体系的内容。通过分析我国石化企业的现状和建立ＩＳＯ１４０００环境管理体系的意义，提出了建立ＩＳＯ１４０００环境管理体系是提高企业管理水平的有效途径的观点。最后，探讨了现阶段石化企业建立ＩＳＯ１４０００环境管理体系的步骤。     

余甘子的保健价值及开发利用前景

我国南方山区、半山区广泛分布的余甘子是一种具有药用价值的野生或栽培果树。成分分析表明,余甘果有较高的营养价值,尤其是维生素C含量很高。进一步研究即通过体外模拟试验,动物试验、人体试验以及病区临床试验证明,余甘果汁能阻断强致癌物N-亚硝基化合物在动物及人体内的合成,阻断率达90％以上,均比同浓度的维生素C高。同时还发现,余甘果汁中含有超氧化物歧化酶,每毫升鲜果汁中含有的酶活力为 964.28国际单位;老人饮用余甘果汁2个月后,血液中红细胞超氧化物歧化酶活力提高1.5倍,并降低了血浆中脂质过氧化物的含量,显示了余甘果汁对人体具有较明显的防癌、抗衰老保健作用。我国余甘子资源十分丰富,民间早有利用余甘果实健身治病的习惯,因此,它是一种很有开发价值的水果。本文较详细地论述了余甘果的保健价值,并对其开发利用现状及前景作了简要的介绍。