太白米愈伤组织的诱导

把太白米小鳞茎基部０．１－０．５ｍｍ处切口，接种于ＭＳ＋ＮＡＡ １ｍｇ／Ｌ＋２．４－Ｄ１ｍｌ／Ｌ＋ＺＴ０．１ｍｇ／Ｌ和ＭＳ＋ＮＡＡ０．５ｍｇ／Ｌ＋ＺＴ０．１ｍｇ／Ｌ培养基上，置黑暗中培养，小鳞茎能脱分化产生大量愈伤组织，诱导率在９５％以上，且生长迅速。     

风信子外植体植株再生系统的研究

风信子叶片及鳞片直接诱导下定芽的培养基为ＭＳ附加６－ＢＡ２．５ｍｇ／Ｌ、ＮＡＡ２．０ｍｇ／Ｌ、ＩＡＡ０．５ｍｇ／Ｌ和ＭＳ附加６－ＢＡ２．５ｍｇ／Ｌ、ＮＡＡ２．５ｍｇ／Ｌ。不定芽发育成小鳞茎的培养基为ＭＳ附加ＧＡ０．２ｍｇ／Ｌ、ＩＡＡ０．５ｍｇ／Ｌ。鳞茎移栽成活率为９０％,从而建立了风信子植株再生系统。     

百合基因转化受体系统的建立

以百合叶片为外植体不经愈伤组织直接诱导并且发育成带球径的大苗进行了研究,结果表明：叶片分芽培养基为ＭＳ＋ＢＡ０．５ｍｇ／Ｌ＋ＺＴ０．。１ｍｇ／Ｌ＋ＮＡＡ１．０ｍｇ／Ｌ生根培养基为１／２ＭＳ＋ＮＡＡ０．。２－１．０ｍｇ／Ｌ,成球并且生长培养基为ＭＳ＋ＩＡＡ１．０ｍｇ／Ｌ,移栽成活率为１００％《     

百合基因转化受体系统的建立

以百合叶片为外植体不经愈伤组织直接诱导并且发育成带球径的大苗进行了研究，结果表明：叶片分芽培养基为ＭＳ＋ＢＡ０．５ｍｇ／Ｌ＋ＺＴ０．１ｍｇ／Ｌ＋ＮＡＡ１．０ｍｇ／Ｌ，生根培养基为１／２ＭＳ＋ＮＡＡ０．２～１．０ｍｇ／Ｌ，成球并且生长培养基为ＭＳ＋ＩＡＡ１．０ｍｇ／Ｌ，移栽成活率为１００％．从而建立了百合基因转化的受体系统     

苦丁茶的组织培养和快速繁殖研究

用苦丁茶当年生枝条的顶芽和侧芽作外植体，培养在附加了各种浓度ＢＡ的ＭＳ培养基上，当ＢＡ浓度为３．０ｍｇ／Ｌ时诱导芽形成及增殖效果最佳，ＧＡ２．０＋ＮＡＡ０．２ｍｇ／Ｌ和ＢＡ配合使用有利于壮苗；在１／２ＭＳ培养基中，附加ＮＡＡ０．５ｍｇ／Ｌ，生根效果最佳。试管苗高２￣３ｃｍ、根数２￣３条时开盖炼苗２ｄ￣３ｄ移入培养土中，试管苗移栽成活率高。     

播娘蒿子叶及下胚轴诱导再生植珠的研究

用播娘蒿种子，在附加６－ＢＡ０．５～１．０ｍｇ／Ｌ＋ＮＡＡ０．１ｍｇ／Ｌ的ＭＳ培养基上获得无菌苗，幼苗的下胚轴在含６－ＢＡ０．１ｍｇ／Ｌ＋ＮＡＡ０．５ｍｇ／Ｌ的ＭＳ培养基上出愈情况最佳，将来自下胚轴的愈伤组织培养于含有６－ＢＡ２．０ｍｇ／Ｌ＋ＮＡＡ０．２ｍｇ／Ｌ的ＭＳ培养基上分化出的丛生芽状态最好，最佳生根培养基为１／２ＭＳ＋ＩＢＡ０．５ｍｇ／Ｌ＋ＮＡＡ０．０５ｍｇ／Ｌ．     

播娘蒿子叶及下胚轴诱导再生植株的研究

用揪娘嵩种子,在附加６－ＢＡ０．５～１．０ｍｇ／Ｌ＋ＮＡＡ０．１ｍｇ／Ｌ的ＭＳ培养基上获得无菌苗,幼苗的下胚轴在含６－ＢＡ０．１ｍｇ／Ｌ＋ＮＡＡ０．５ｍｇ／Ｌ的ＭＳ培养基上的出愈情况最佳,将来自下胚轴的愈伤组织培养了含有６－ＢＡ２．０ｍｇ／Ｌ＋ＮＡＡ０．２ｍｇ／Ｌ的ＭＳ培养基上分化出的丛生芽状态最好,最佳生根培养基为１／２ＭＳ＋ＩＢＡ０．５ｍｇ／Ｌ＋ＮＡＡ０．０５ｍｇ／Ｌ。     

百合子房的组织培养

以百合子房为材料进行组培快繁，得到子房诱导成愈伤组织的最适培养基为ＭＳ＋ＢＡ１ｍｇ／Ｌ＋ＮＡＡ０．５ｍｇ／Ｌ：适合诱导分化的培养基为ＭＳ＋ＢＡ０．５ｍｇ／Ｌ＋ＩＡＡ０．５ｍｇ／Ｌ；适合生根的培养基为ＭＳ＋ＢＡ０．２ｍｇ／Ｌ＋ＩＡＡ１ｍｇ／Ｌ．     

骆驼刺高效离体植株再生体系的建立

通过对络驼刺（Ａｌｈａｇｉ ｐｓｅｕｄａｌｈａｇｉ Ｄｅｓｖ）不同外植体来源、不同培养基及激素配比的比较,建立骆驼刺培养高效再生植株实验体系。表明骆驼刺下胚轴切段在含１．５￣２．０ｍｇ／Ｌ２,４－Ｄ和０．５￣１．０ｍｇ／Ｌ ６－ＢＡ的ＭＳ培养基中１００％诱导愈伤组织,在含１．５ｍｇ／Ｌ ６－ＢＡ和１．０ｍｇ／Ｌ ＮＡＡ的ＭＳ培养基上愈伤组织分化成苗,转至含２．０ｍｇ／Ｌ ＩＢＡ和０．２ｍｇ／Ｌ ＮＡＡ的ＭＳ培养基上成根得到完整再生植株,组织学观察表明植株再生主要为器官发生途径,染色体稳定遗传。     

雪兔子叶的组织培养及植株再生

以雪兔子无菌苗的幼叶为外植体,接种到ＭＳ补加ＮＡＡ（１．０－２．０）ｍｇ／Ｌ、６－ＢＡ（０．１－１．０）ｍｇ／Ｌ的培养基上诱导愈伤组织,其中以ＭＳ＋ＮＡＡ２．０ｍｇ／Ｌ＋６－ＢＡ０．５ｍｇ／Ｌ的诱导效果最好,经６周培养即可形成大量的黄绿色愈伤组织,诱导率可达１００％,经２－３次继代培养后,将生长发良好的愈伤组织转接到ＭＳ附加６－ＢＡ（０．５－２．０）ｍｇ／Ｌ、ＩＡＡ（０．０５－０．１）ｍｇ／Ｌ、Ｎ     

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-