卡德丽亚兰根尖离体培养获得再生植株

对卡德丽亚兰根尖进行离体培养，诱导形成了愈伤组织、原球茎并获得再生植株．2，4—D对愈伤组织的形成起着主导作用；高浓度BA与低浓度NAA配合使南可诱导根尖形成原球茎并分化形成再生植株．愈伤组织员佳诱导培养基为VW 0．5mg/L 2，4—D或VW 0．1mg/L 2，4—D 0．5mg/L NAA 0．1mg/L BA；原球茎最佳诱导培养基为VW 0．5mg/L NAA 3—8mg/L BA；增殖培养基用KC 2．0mg/L BA 5％香蕉提取汁 1％活性炭．     

卡特丽亚兰的组织培养与快速繁殖的研究

作者以卡特丽亚兰开花植株茎尖和试管苗茎段或叶切段为外植体,成功地诱导形成原球茎并获得再生植株,筛选出了原球茎球诱导培养基：RE＝60mg/L BA(5mg/L BA 0.5-1mg/L NAA或IBA）＋0．5％－1％蔗糖;原球茎增殖培养基：MS（或KC）＋5mg/L BA 0.1(0.5)mg/L NAA(或0.5mg/L 1BA) 0.2%蛋白胨和分化及育苗培养基;KC＋0．3mg/L (0.5)NAA 10%香蕉匀汁＋0．1％活性炭。BA在原球茎的产生、增殖分化中起着主导作用。     

卡特丽亚兰试管苗工厂化生产过程中幼苗增殖与生长特性的研究

作者进行了卡特丽亚兰试管苗的无性繁殖增殖方式的研究．试验结果表明：丛芽增殖的途径优于原球茎增殖的途径．并筛选出亍再生幼苗和实生苗的增殖培养基：KC 0．5～1mg／L BA 10％香蕉 1g／L活性炭；KC 10％香蕉 1g／L活性炭．另外，可以通过退化种苗茎尖的离体培养产生再生植株进而达到复壮的目的．     

激素和添加物对蝴蝶兰组培快繁的影响

以蝴蝶兰人工授粉的果荚种胚和组培苗的叶片、茎尖为外植体,进行组织培养快速繁殖研究.结果表明,果荚种胚是最好的外植体材料,1个果荚可培育出上万个原球茎.种胚诱导原球茎最佳激素组合为:6-BA 0.3mg/L+NAA 0.2 mg/L;原球茎增殖最佳激素组合为:6-BA 0.5 mg/L+NAA 0.2 mg/L;2%蔗糖和10%香蕉泥可以显著促进原球茎增殖;原球茎分化最佳激素组合为:6-BA 1.0 mg/L+NAA 0.2 mg/L;诱导生根IBA 0.5mg/L最佳;炼苗后移栽苗成活率达95%以上.优化后的蝴蝶兰组织培养条件,可为蝴蝶兰快速繁殖工厂化生产提供参考.     

《天使不敢涉足的地方》悲剧根源探析

E.M.福斯特的小说《天使不敢涉足的地方》的主人公莉丽亚是个悲剧人物,她的悲剧命运的产生并不是孤立或偶然的,而是由多重原因造成的,主要有社会因素、男权思想和她自身性格弱点等。     

性物化下的沉默——《罗克珊娜》、《克拉丽莎》和《塞西丽亚》的比较分析

格奥尔格·卢卡奇提出的＂物化＂理论主要属于哲学范畴,但是,如果把它应用于文学领域来分析英国18世纪女性被物化的现象、原因和本质,则更能有助于了解女性物化现象的相关理论和其发展的特点。结合英国18世纪出版的三部小说作品——塞缪尔·理查逊的《克拉丽莎》、丹尼尔·笛福的《罗克珊娜》和弗朗西斯·伯妮的《塞西丽亚》,以作品中女性物化现象为切入点,探讨由于女性在经济上处于被动地位,婚姻中也成为男性的附属品,加上父权制度的统治和长期以来社会伦理道德的双重压迫,女性的命运一直在男性社会中被物化,成就了父权制社会显形物化的意识形态。     

《名利场》中女性命运解读

爱米丽亚和利蓓加是《名利场》中两个性格迥异、命运也截然不同的人物,但她们都是男权社会的产物。她们的婚姻情感充分体现了女性在男权社会中无奈的依附地位及其悲剧命运。     

濒危名贵药材白芨组培繁育技术研究

白芨属名贵濒危中药材,种子自然繁殖出苗率仅有万分之一的机率,很多生产者在白芨繁育方面按照传统方法进行,但由于传统繁育方法的时间周期长,而且成苗比较困难。白芨组培苗在培养瓶中生根,?原球茎生长到一定的时候,可以再从基部产生出新的胚状体,继续发育成苗,当长到4~5cm高时,即可出瓶移植。组培繁育出有叶片的优质原球茎苗,可防止种子萌发生长过程中的退化,还可以缩短常态育苗的生产流程,这种技术的应用和生产推广目前是先进的。     

天麻种子与紫萁小菇共生萌发过程中的超微结构变化研究

紫萁小菇与天麻种子共培养时可刺激种子萌发形成原球茎 .菌丝自胚柄端柄状细胞侵入天麻种子原胚 ,分布于天麻原球茎基部的柄状细胞 ,外皮层细胞和内皮层细胞内 .菌丝外围环绕着一层原球茎细胞质膜和电子透明物质 ,这一界面是原球茎与真菌相互作用的产物 ,两者间的物质转运发生在这个界面上 .菌丝在外皮层细胞中形成菌丝结 ,在内皮层细胞中则被消化 ,形成扁化、衰败的菌丝或菌丝团块 .含有衰败菌丝的原球茎细胞可被菌丝重新定植 ,新近定植的菌丝又被原球茎细胞消化 .     

塔丽亚的商业模式：嵌入SAP的货款催收平台

借助SAP的力量,塔丽亚将以折扣作为催款方式的货款催收软件,打进了80％的世界500强,从而为各企业提供了一个货款催收平台。并从为客户省下的钱中,获得分成。     

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.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

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。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.