反相高效液相色谱测定血液中三硝基甲苯及其代谢产物含量

采用已建立的最佳水解条件，即血样加盐酸加热水解，再用NaOH中和，乙醚萃取TNT及两种代谢产物4A和2A，用反相高效液相色谱方法，流动相为甲醇、水，梯度淋洗，色谱柱为C18，一次进样同时测定了样品中TNT、4A和2A含量，回收率分别达到了95．88％，92．54％，98．23％，表明改进的梯度法准确度很高。     

聚丙烯复合抗氧剂的高效液相色谱测定

本文采用高效液相色谱法对某牌号聚丙烯所添加的复合抗氧剂的主要成分抗氧剂3114和抗氧剂626进行快速定性、定量分析。在线性范围内,抗氧剂3114和抗氧剂626的质量浓度与色谱峰面积均呈良好的线性关系,相关系数r分别为0.9997和0.9999,检出限分别为5×10-4mg/mL和1×10-3mg/mL。     

红外光谱法测定聚丙烯中乙烯含量

根据Basell公司提供的聚丙烯标样,用红外光谱仪测定了聚丙烯中乙烯含量。选择近红外谱区的吸收作为聚丙烯测定参数。使用峰面积法计算吸光度。对于不同乙烯含量范围的样品,选择不同的乙烯测定参数。     

基于峭度的组分分析方法解析重叠峰

基于峭度的组分分析方法用来解析重叠峰．其优点是半盲源分离，即只要确定出重叠峰所含组分的数目，就能从混合波谱中分离出纯组分谱．采用CABK来解析模拟两组分重叠峰体系和酒样的GC-MS混合谱，得到了令人满意的结果．     

狼尾珍珠菜花挥发油的提取与成分分析

本作对辽宁千山地区狼尾珍珠菜花中挥发油进行提取，分析和鉴定，测得此花挥发油含量为３．７％，用ＧＣ／ＭＳ法从其挥发油中分离确定了１４种化合物，用峰面积归一法通过Ｇ１７０ＢＡ化学工作站数据处理系统得出其化学成分在挥发油中的百分含量为６７．４５％。     

聚丙烯/有机蒙脱土纳米复合材料的流变行为

以聚丙烯固相接枝共聚物为界面改性剂制备了聚丙烯／有机蒙脱土纳米复合材料．用透射电镜表征了纳米复合材料的结构，研究了接枝物对纳米复合材料动态流变行为的影响，以及流变行为与温度的关系．结果表明：与纯聚丙烯相比，纳米复合材料具有较高的动态弹性模量、损耗模量和复合粘度，力学损耗因子则降低，纳米复合材料的复合粘度对温度的敏感性略高于聚丙烯；界面改性剂的加入增强了有机蒙脱土与聚丙烯的界面作用，与聚丙烯相比，纳米复合材料的流动活化能提高约15％，结晶峰温度提高10K左右．     

狼尾珍珠菜花挥发油的提取与成分分析

本文作者对辽宁千山地区狼尾珍珠菜花中挥发油进行提取，分析和鉴定。测得此花挥发油含量为 ３．７％。用 ＧＣ／ＭＳ法从其挥发油中分离确定了 １４种化合物。用峰面积归一法通过Ｇ１７０１ＢＡ化学工作站数据处理系统得出其化学成分在挥发油中的百分含量为６７．４５％。     

基于热分级法的双向拉伸聚丙烯专用料制样条件的优化

采用连续自成核退火法(SSA)热分级方法对双向拉伸聚丙烯专用料的分子链结构进行研究.设计用连续自成核退火热分级方法评价双向拉伸聚丙烯成模稳定性的实验方法,通过对双向拉伸聚丙烯专用料的制样过程进行分析,确定最适宜的制样条件.结果表明:最适宜的制样条件为样品在200℃条件下用压板压制,可以消除不同产地铝坩埚的影响,成模稳定性显著提高.     

EDXRF分析中粉末压片制样条件及X光管激发条件研究

研究了EDXRF分析中粉末压片法最优制样条件和光管最佳激发条件。通过对BaSO4粉末与BaSO4和煤粉混合的两种不同Ba含量(58.8%和35.3%)的压片样品测量,得到Ba元素特征谱线的峰背比与制样条件、激发条件之间的关系曲线。在实验所用的具体设备情况下,粉末压片法制样最优压力大小为5~6MPa,最优恒压时间约为4min。在光管电压为47kV,光管电流为10μA时,得到Ba元素特征谱线最佳峰背比和良好的能量分辨率,并且发现同一目标元素含量不同的样品,最优制样条件和X射线管激发条件基本相同。研究结果表明适当的制样方法和优化的激发条件对提高EDXRF分析结果的准确性和改善仪器检出限具有重要的意义。     

洋葱中挥发性成分的气相色谱-质谱法测定

目的：研究洋葱中挥发性化学成分．方法：采用微波辅助提取液，用气相色谱-质谱法联用技术进行定性分析，按峰面积归一化法，求出挥发性化学成分的相对含量．结果：分离出44个峰，鉴定了28个化合物．结论：主要成分是酸类、甾醇类，烷烃，醛和杂环化合物，其中酸类、烷烃含量较高．     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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