抗旱保水剂膨润土-聚丙烯酸盐吸水树脂研究

利用丙烯酸盐在蒙脱石层间进行原位聚合，研究开发一种适用于农林业的抗旱保水剂。实验结果表明：聚合产物的综合性能较为理想，吸水树脂的保水作用主要体现在能够吸收大量的水，并且在压力下不脱水。     

东北多年冻土区埋地输油管道周围温度场特征非线性分析

为解决冻土区输油管道周围土壤的温度计算问题,根据考虑相变瞬态温度场的控制微分方程,应用Galerkin法推导出了二维温度场的有限元计算公式.以东北多年冻土区中俄原油管道工程为背景,根据该工程区的冻土条件和气候条件,应用该方法对温热型输油管道土壤温度场进行了计算预报与对比分析.结果表明:对于输送油温为15 ℃、直径为0.914 m以及管顶埋深为2.0 m的管道,在没有铺设保温材料情况下,管顶之上的土壤在管道运行的第1年就达到热平衡状态,同时土壤融化速率在第1年达到最大,随后4a时间里迅速减小,第5年后融化速率变化趋于稳定;管道运行一段时间后,管道周围的融化圈随冷暖季节的变化呈交替式的扩展;在管道运行30 a后,融深＞10 m,即管底下的融化层厚＞7 m,而在铺设5～8 cm的聚氨酯保温材料后,融深控制在3.08～3.88 m,即管底下融化层厚为0.2～1.0 m.因此,合理使用保温方法能有效防止冻土区管道冻害的发生,同时达到保护冻土环境的目的.     

存储式钻孔测量仪的研制与应用

CE-1型存储式磁敏钻孔测斜仪及QXY-5型存储式钻孔倾斜仪采用智能传感器、数据采集系统、大容量存储芯片,具有小巧轻便、功能强大、测试数据准确性高、稳定性好的特点,实现了数据的自动采集、记录和存储。介绍了CE-1型存储式磁敏钻孔测斜仪及QXY-5型存储式钻孔倾斜仪的研制和实际应用情况。     

Effects of tributyltin at environmental levels on monooxygenase system of digestive gland in hard clam Meretrix meretrix

The effects on ethoxyresorufin O-deethylase （EROD）, NADPH-cytochrome c reductase and NADH cytochrorne b5 reductase activities of digestive gland in Meretrix meretrix exposed to tributyltin （TBT） at environmental levels （0.1,1.0,10.0 ng/dm as stannum concentration）,in experimental condition, were evaluated. The EROD, NADH cytochrorne b5 reductase activities were significantly inhibited after exposure to 10.0 ng/dm^3 TBT for 8 and 20 d, the NADPH cytochrorne c reductase activities were significantly inhibited after exposure to 0.1,1.0 and 10.0 ng/dm TBT for 8 d and to 1.0 and 10.0 ng/dm for 20 d, as compared with the matched control, while NADH cytochrorne b5 reductases and NADPH cytochrome c reductase activities were induced after exposure to 10.0 ng/dm^3 TBT for 2 d. The EROD activity in the 10 ng/dm^3 group,and the NADH cytochrome b5 reductases activities in 1.0 and 10.0 ng/dm groups, were significantly induced when transferred to clean recovery tanks for 7 d. The three enzymic activities in the clams exposed to TBT were recovered to the level corresponding to that of the control group after transfer to clean recovery tanks for 20 d. NADPH cytochrome c reductase activity in Meretrix meretrix seems to be more sensitive to exposure of TBT than that of the EROD and NADH cytochrome b5 reductases. The results suggest that induction and inhibition by TBT to the monooxygenase system enzymic activity in Meretrix meretrix would simultaneously exist. The enzymic activities were inhibited by exposure for a long time. The results suggest that inhibition of the monooxygenase system should be an indication of the exposure to environmentally relevant concentrations of TBT for a long time.     

一种推广的缓坡方程

从流体力学基本方程出发，假定水流的涡量和垂向流速分量小量，推导出考虑非均匀水流的推广的缓坡方程，该方程中包含了△h^2h项和（△hh)^2项。在方程中引入底摩擦项、风能输入项和非线性项，其中风能输入项的推导考虑了风浪与涌浪的区别，风流情况依据青岛海洋大学的风浪成长经验关系，涌浪情况依据Snyder等人的观测结果。经过上述推广后，得到综合考虑折射、绕射、反射、非均匀水流、底摩擦损耗、风能输入及波浪非线性的推广的缓坡方程。     

60Co－γ辐照对坛紫菜原生质体诱变的研究

利用^60Co-γ射线对坛紫菜（Porphyra haitanensis）原生质体进行辐照诱变，发现原生质体对^60Co-γ射线有极强的耐受性。前期的培养结果表明，原生质体是一种理想的诱变材料。诱变结果表明，^60Co-γ射线对坛紫菜可诱变剂量范围很大，从200-1300 Gy均有突变株生成。诱变后细胞的存活率不宜作为坛紫菜诱变最佳剂量的指标。     

Effect of Sea Level Variation on Tidal Characteristic Values for the East China Sea

1 .IntroductionTheglobalairtemperatureroseabout 0 .5～ 0 .6°Coverthepast 2 0thcentury ,andtheglobalmeansealevelincreasedbyabout2 0cmduringtheperiod .Theregionalmeansealevelriseswiththerisingglobalmeansealevel.Zuoetal.( 1 997)indicatedthatthemeanrisingrateofabsolutemeansealevelalongtheChinacoastontheassumptionofunifiedisostaticdatumis 2mm a .Woodworth( 1 999)analyzedsealevelspanning 1 76 8tothepresentinLiverpool,andobtainedaseculartrendforheperiodupto 1 880of0 .39± 0 .1 7mm a ,andatrendfort…     

国家1:5万DLG数据质量检查软件的设计与实现

本文论述了国家1:5万DLG数据质量检查软件的功能、设计、特点与应用.     

火山热液型铅锌矿床岩石地球化学特征及预测指标

火山热液型铅锌矿床赋矿围岩、后期脉岩和蚀变岩石中成矿元素铅锌银含量高,矿体元素组合复杂,原生异常发育,并存在着原生分带现象。矿体前缘元素为I、Hg、As、Sb、B、Ba;近矿指示元素是Pb、Zn、Ag、Au、Cd、Mn、Cu;尾部或矿下指示元素为Cu、Mo、W、Sn。根据矿床指示元素的分布规律和原生晕的分带性,研制了判别矿床剥蚀程度和评价异常的地球化学指标,建立了该类矿床的地球化学找矿预测标志。     

垦71区块井间地震资料处理研究与应用

由于避开了地表低降速带和风化层的影响,井间地震能够采集到高频地震信号,经过资料处理可以得到较高分辨率的速度和上行反射波成像剖面。2004～2005年,胜利油田在垦71 区块实施了8对井间地震资料采集。针对原始资料特点,研究了以层析成像、管波衰减、VSP-CDP技术和有限角度叠加成像等关键处理技术,较好地完成了该区块的井间地震资料处理。初步分析解释表明,井间地震可以识别低序级断层、小幅度构造和薄储层。