计算聚合物驱相对渗透率的新方法

根据聚合物溶液在多孔介质中的流变性，提出了计算聚合物溶液驱相对渗透率的新方法，通过实例说明了该方法的正确性，同时证实了聚合物驱提高采收享的机理在于提高了非均质油藏的波及体积，而并非减小了最终残余油饱和度。     

低聚型表面活性剂的研究(一)——GMS表面活性剂的合成及性能研究

本文介绍了一种马来酸酐—苯乙烯低分子量共聚物的接枝改性物(GMS)新型表面活性剂的合成及其溶液基本性质。     

C-Mn钢热变形行为及其流变应力模型的研究

本文利用Ｔｈｅｒｍｅｃｍａｓｔｅｒ－Ｚ热／力模拟装置,通过单道次模拟压缩实验,计算了Ｃ－Ｍｎ钢的热变形激活能;并通过流变应力的宏观变化,分析了由于热／力学行为的演变而引起的如动态回复、动态再结晶物理冶金现象及其本质变化规律,并建立了一系列完整的Ｃ－Ｍｎ钢流变应力模型．     

红细胞作为吗啡载体延长吗啡镇痛时效的研究

探讨用高渗法制备红细胞包蔽吗啡溶液(RBG—M)的可行性。对RBC—M制备过程中红细胞(RBC)的体积和形态的变化、RBG—M溶液内外的吗啡(M)浓度及含量的变化以及择期上腹部手术患应用RBC—M溶液术后镇痛的时效和吗啡的血药浓度进行了研究。研究发现：(1)用高渗法制备红细胞包蔽吗啡溶液是可行的。(2)RBG—M溶液与单纯M溶液相比其术后镇痛作用显延长；其药代动力学指标消除半衰期(T1／2)延长3倍多。曲线下面积(AUC0→∞)增加约11倍。而清除率(CL)明显减小约9倍。(3)用RBGM溶液行术后镇痛的患其时效明显优于单纯用吗啡的患。     

Cloning and characterization of vernalization-related gene (ver203F) cDNA 3′ end

Based on the cDNA fragment sequence of vernalization-related geneverc203 cloned by differential screening in our lab, the 5′ primer has been designed. The cDNA 3′ end ofver203 gene (1 197 bp) has been cloned by the RACE method. And it is identified by Northern blotting that its expression is special in vernalization treatment. After comparing the sequence in the nucleotide sequence databases of Genbank, EMBL and DDBJ, the gene has homology withHordeum vulgare jesmonate-induced protein gene. It is suggested that this gene might be related to the signal transduction mediated by jamonate.     

新型垂直流人工湿地组合工艺处理剩余污泥实验研究

剩余污泥是污水处理过程产生的主要副产品和有机废物,它的处理与处置是污水处理的重要组成部分.通过6个月的实验室模拟,研究了一种新型垂直流人工湿地组合工艺对剩余污泥的脱水和渗滤液的净化效果.结果表明,随着停留时间的增长污泥含水率和挥发性固体呈下降趋势,脱水后污泥含水率为40%,挥发性固体去除率达48.2%.在实验期间,共有392 L新鲜剩余污泥得到处理,获得10.3 L干污泥,污泥体积减小97.4%.湿地床表面污泥以平均每月0.87 cm的速度增厚,到试验结束时为5.23 cm深.组合系统以20.0 L(/m2.d)的污泥负荷间歇进泥方式运行,其污泥渗滤液的TN,TP和COD的平均去除率可分别达75.2%,97.3%和78.4%.结果说明该垂直流人工湿地组合系统可以作为传统污泥处置的一个替代方法,是一种建造简单、维护成本低的生态处理方法.     

Zircon U-Pb geochronology of basement metamorphic rocks in the Songliao Basin

Zircon LA-ICP MS U-Pb dating of six metamorphic rocks and a metagranite (breccia) from southern basement of the Songliao Basin are reported in order to constrain the formation ages of basement. The basement metamorphic rocks in the Songliao Basin mainly consist of metagabbro (L45-1), amphibolite (SN117), metarhyolitical tuff (G190), sericite (Ser) schist (N103), chlorite (Chl) schist (T5-1), biotite (Bi)-actinolite (Act)-quartz (Q) schist (Y205), and metagranite (L44-1). The cathodoluminesence (CL) images of the zircons from metagabbro (L45-1) and metagranite (L44-1) indicate that they have cores of magmatic origin and rims of metamorphic overgrowths. Their U-Pb isotopic ages are 1808±21 Ma and 1873±13 Ma, respectively. The zircons with oscillatory zoning from amphibolite (SN117) and Chl schist (T5-1), being similar to those of mafic igneous rocks, yield ages of 274 ± 3.4 Ma and 264 ± 3.2 Ma, re-spectively. The zircons from metarhyolitical tuff (G190) and Ser schist (N103) display typical magmatic growth zoning and yield ages of 424 ± 4.5 Ma and 287 ± 5.1Ma, respectively. Most of zircons from Bi-Act-Q schist (Y205) are round in shape and different in absorption degree in the CL images, implying their sedimentary detritals. U-Pb dating yield concordant ages of 427 ± 3.1Ma, 455 ± 12 Ma, 696 ± 13 Ma, 1384±62 Ma, 1649±36 Ma, 1778±18 Ma, 2450±9 Ma, 2579±10 Ma, 2793±4 Ma and 2953±14 Ma. The above-mentioned results indicate that the Precambrian crystalline basement (1808―1873 Ma) exists in the southern Songliao Basin and could be related to tectonic thrust, and that the Early Paleozoic (424―490 Ma) and Late Paleozoic magmatisms (264―292 Ma) also occur in the basin basement, which are consistent with the ages of the detrital zircons from Bi-Act-Q schist in the basement.     

选择性酶解-超滤制备大豆改性蛋白

按一定比例混合脱脂豆粕和反渗透水,混合液在pH8．0及室温下连续搅拌40min,再经离心去渣得到大豆蛋白提取液,将提取液在适当的条件下酶解-超滤,截留液经冷冻干燥得到大豆改性蛋白,所制得产物的蛋白质含量（质量分数）从52．6％提高到78％以上,回收率大于80％,SDS-PAGE凝胶电泳结果显示,经Alcalase 2．4L改性的大豆蛋白主要含glycinin的碱性亚基,经fungal protease concentrate改性的大豆蛋白主要含glycinin的酸性亚基和碱性亚基。     

大鼠肝纤维化及肝硬化成模过程中肝组织结构变化

为了解大鼠肝纤维化及肝硬化成模过程中肝组织结构变化,用四氯化碳-白酒联合诱导法构建大鼠肝纤维化及肝硬化模型,按常规方法制备肝组织石蜡切片和镜检.建模第1～3周,肝脏的汇管区扩大,出现纤维性增生,肝细胞发生脂肪变性.建模第4～6周,肝脏的汇管区周围形成纤维束.建模第7～9周,纤维束更明显,肝小叶结构紊乱.建模第10～12周,肝小叶结构更加紊乱,出现早期肝硬化迹象.建模第13～15周,肝小叶消失,假小叶出现,肝硬化形成.根据上述结果得出如下结论:皮下注射四氯化碳与口服白酒结合能有效诱导大鼠肝纤维化及肝硬化,肝脏组织结构与病理变化有规律,易于观察分析,值得推广应用.     

桩基荷载下溶洞顶板安全厚度研究

本文以深圳市龙岗区龙城工业园内某高层建筑桩基下的溶洞顶板为研究对象,运用理论公式和数值模拟方法分别对桩基荷载下溶洞顶板安全厚度进行研究。选取单桩承载力、溶洞洞跨、溶洞形态系数、桩端偏心率作为顶板安全厚度的影响因素,通过数值模拟得到了安全厚度与各单因素之间的影响规律,并综合考虑这些影响因素得到安全厚度的预测模型;在能保证安全的前提下,将预测模型值与理论公式值进行对比,判断出预测模型更合理节约,对岩溶地基高层建筑桩基设计和现场施工有一定的指导意义。