脑心通滴丸中紫丁香苷的含量测定

拟建立脑心通滴丸中紫丁香苷的含量测定方法．采用高效液相法以V甲醇：V水：V1.5％醋酸=18：80：2作为流动相，在检测波长265nm，流速1mL／min条件下测定脑心通滴丸中紫丁香苷的含量．结果显示每丸中含有紫丁香苷不低于0．014mg，其方法精密度，重现性良好，因此可以作为该制剂的质量控制方法．     

蒲地蓝消炎片质量控制方法研究

目的：建立蒲地蓝消炎片的质量控制方法。方法：采用薄层色谱法定性鉴别,展开剂为醋酸乙酯-丙酮-甲酸-水（13：3．5：1：1．5）,用2％FeCl3乙醇溶液显色。采用反相高效液相色谱法测定蒲地蓝消炎片中黄芩苷的含量,色谱条件为Agilent ZORBAXSB C18色谱柱（4．6mm×150mm,5μm）,流动相为甲醇-0．2％磷酸水溶液（42：58）,检测波长为278nm,流速1．0ml／min,柱温30℃。结果：薄层色谱中供试品与对照品在相应位置上具有相同颜色的斑点。黄芩苷在0．2～2．0ng范围呈良好的线性关系,r=0．9998,回收率为99．65％,RSD为1．60％。结论：本法操作简便快速,分离效果好,稳定性高,重现性好,可全面控制蒲地蓝消炎片的质量。     

应用HPLC法测定刺五加中紫丁香苷的含量

目的：采用高效液相色谱法测定不同产地刺五加申紫丁香苷的含量。方法：采用C18柱，流动相：甲醇－水（20：80），流速：1．0ml／min，检测波长：265nm。结果：伊春产刺五加紫丁香苷含量最高；但五个产地中刺五加紫丁香苷含量均远高于2005年版《中华人民共和国药典》一部中关于刺五加紫丁香苷含量的要求。     

HPLC法测定不同产地刺五加中紫丁香昔的含量

目的：采用高效液相色谱法测定不同产地刺五加中紫丁香苷的含量。方法：采用C18柱，流动相：甲醇-水（20：80），流速：1．0ml／min，检测波长：265nm。结果：伊春产刺五加紫丁香苷含量最高；但五个产地中刺五加紫丁香苷含量均远高于2005年版《中华人民共和国药典》一部中关于刺五加紫丁香苷含量的要求。     

RP—HPLC法测定双花利咽袋泡茶中哈巴俄苷的含量

目的建立双花利咽袋泡茶中哈巴俄苷的含量测定方法，有效控制其制剂质量。方法采用RP—HPLC法。色谱柱为Ultimate C18柱（250mm×4．6mm，5um），紫外检测波长为278am，流动相为乙腈-1％醋酸水溶液（27：73）；柱温：室温；流速：1．0ml／min。结果哈巴俄苷进样量在3．36～16．8ug与峰面积线性关系良好，相关系数为0．9999，平均回收率98．8％（n=9，RSD=0．61％）。结论本方法快速、简便、准确、专属性好，可用于双花利咽袋泡茶的质量控制。     

HPLC—MS／MS法测定四季感冒胶囊中的4种有效成分

建立了高效液相色谱-串联质谱联用法（HPLC-MS／MS）同时测定四季感冒胶囊中升麻苷、橙皮苷、5-O-甲基维斯阿米醇苷和连翘苷4种有效成分含量的方法．4种成分能很好地分离,各成分均有较宽的线性范围和良好的线性关系,回收率为98％～102％．该方法快捷、准确、重复性好,可为四季感冒胶囊的质量控制提供依据．     

维C银翘片中连翘苷的质量控制方法研究

目的：建立维C银翘片中连翘苷的鉴别和含量测定方法。方法：采用薄层色谱法定性鉴别,展开剂为苯-丙酮-醋酸乙酯-甲醇-水（20：25：30：3：3）,碘缸显色。采用高效液相色谱法进行含量测定,色谱条件为Agilent ZORBAX SB C18色谱柱（4．6mm×150mm,5μm）,流动相为乙睛-水（23：77）,检测波长228nm,流速1．0ml／min,柱温30℃。结果：薄层色谱鉴别斑点清晰,易于识别,连翘苷在0．2～2μg范围内线性关系良好,r=0．9993,平均回收率为98．50％,RSD为1．70％。结论：本法操作简便、快速、分离效果好、稳定性高、重现性好,为全面控制维C银翘片的质量提供了一个可靠的方法。     

HPLC法测定通之舒胶囊中丹参酮ⅡA含量

目的：建立了通之舒胶囊中丹参酮ⅡA的含量测定方法。方法：采用HPLC法测定,使用Diamonsil C18（4．6mm×250mm,5μm）色谱柱,流动相：甲醇水（73：27）,流速：1．0ml／min,检测波长：270nm。结果：丹参酮ⅡA在8．008--72．072μg／ml范围内有良好线性关系（r=0.9995）,平均回收率为99．28％,RSD=1．1％（n=6）。结论：该法操作简便、准确、重现性好,可用于通之舒胶囊中丹参酮ⅡA的质量控制方法。     

HPLC法同时测定锡林郭勒产金银花中绿原酸与木犀草苷的含量

目的：建立同时测定锡林郭勒产金银花中绿原酸与木犀草苷含量的方法。方法：采用Agilent ZORBAX SB—C18色谱柱（250mm×4．6ram,5μm）,以乙腈-磷酸水溶液（0．10mol／L）为流动相进行梯度洗脱,流速1．0mL／min,检测波长：绿原酸327nm,木犀草苷348nm,柱温：30℃。结果：锡林郭勒产金银花花蕾中绿原酸含量达1．82％,木犀草苷含量0．125％,均高于2010年版《中国药典》规定含量。     

HPLC法检测发酵液中的木糖和木糖醇

建立高效液相色谱检测发酵液中木糖和木糖醇含量的分析方法．色谱柱为ZORBAX碳水化合物，柱温30℃，流动相为乙腈：水=80：20（V／V），流速1．2mL／min，示差折光检测器检测．木糖和木糖醇在 0．5～40．0mg／mL范围内浓度与峰面积线性关系良好（R2分别为0．9931和0．9947），平均回收率分别为99．80％（n=5，RSD=1.35％）和99．62％（n=5，RSD=1．65％）．方法简便、快速、准确。     

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.     

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.     

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.     

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.     

A computer generator for randomly layered structures

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

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.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-