影响红掌品种＂若比诺＂愈伤组织诱导因素分析

以红掌品种“若比诺”的无菌苗为材料,研究了影响红掌品种“若比诺”愈伤组织的诱导因素．结果表明,基本培养基、外源激素、外植体类型和光照培养条件对愈伤组织的诱导都有显著影响．茎段在MS＋BA（2．0mg／L）＋2,4．D（0．2mg／L）培养基中愈伤组织诱导率最高,达到100％,叶片在1／2MS＋BA（2．0mg／L）＋2,4-D（0．2mg/L）培养基中诱导率最低（为0）．不同外植体的愈伤组织诱导率有明显的差异,其诱导率的大小依次为茎段〉叶柄〉叶片,茎段最适合做外植体源．光培养下的愈伤组织诱导率比暗培养下的高,光照有利于“若比诺”的愈伤组织的诱导．     

叶用莴苣组织培养研究

以叶用莴苣（LactucasativaL）栽培品种的幼嫩叶片为实验材料，对叶用莴苣的组织培养进行了研究，探讨愈伤组织的形成、愈伤组织分化成芽和生根的条件．结果如下：6-BA和NAA的浓度影响叶用莴苣愈伤组织的形成、分化和生根培养，诱导愈伤组织的最适培养基为：MS＋6-BA（0．5mg／L）＋NAA（0．1mg／L），最适分化培养基为：MS＋6-BA（0．5mg／L）＋NAA（1．0mg／L），最适生根培养基为：1／2MS＋NAA（0．1mg／L）．     

互叶白千层愈伤组织诱导及植株再生

本文报导了互叶白千层从无菌种子苗叶片诱导愈伤组织到植株再生的研究结果．实验表明：以继代代数不同的无菌苗叶片为诱导材料,在MS基本培养基中添加TDZ0．4mg／L＋2,4-D0．4mg／L的第五代继代苗诱导效果较好,愈伤组织诱导率达100％．在互叶白千层愈伤组织分化阶段,在MS基本培养基中,激素组合筛选中以添）m6-BA2．0mg／L＋IAA2．5mg／L的分化效果较好,分化率高达94．53％．在分化苗伸长生根阶段,以MS＋6-BA2．0mg／L＋NAA0．8mg／L＋AC0．1％的效果较为显著,苗平均高度9．4cm,苗最壮,根粗且壮．     

蒲苇愈伤组织的诱导和再生体系的建立

以蒲苇成熟种子为外植体,MS为基本培养基并附加不同激素组合,筛选出诱导蒲苇愈伤组织产生和分化的最佳培养基,成功建立蒲苇的再生体系．试验结果表明：蒲苇种子最佳灭菌方式是将种子灭菌前用无菌水浸泡24h左右,然后用75％酒精消毒20s,再用0．1％（W／V）氯化汞消毒灭菌10min．愈伤组织诱导的最佳培养基为MS＋2,4-D3．0mg/L＋6-BA0．1mg／L;愈伤组织分化的最佳培养基为MS＋6-BA 2．0mg／L＋NAA 0．1mg/L分化继代的最佳培养基为MS＋6-BA 1．5mg／L＋NAA 0．2mg/L;生根最佳培养基配方为1／2MS＋NAA 0．8mg/L＋6-BA 0．2mg／L＋（0．02％）AC．     

山荷叶的组织培养及无性系建立的研究

研究了山荷叶叶柄愈伤组织的诱导、分化、试管苗生根、移栽所需要的条件，并建立起山荷叶的无性系．结果表明：MS＋La（NO3）3·6H2O 1．2mg／L＋BA0．5mg／L＋NAA1．5mg／L是山荷叶叶柄愈伤组织诱导的理想培养基；MS＋La（NO3）3·6H2O 1．2mg／L＋BA0．5mg／L＋IAA 0．2mg／L是山荷叶愈伤组织分化的理想培养基；1／3MS＋IAA 0．5mg／L是生根培养的理想培养基；以炉灰渣为试管苗的移栽扦插基质，移栽成活率为91％；试管苗在原产地生长正常．     

车窝草嫩叶无性系建立的研究

研究了车窝草嫩叶愈伤组织的诱导、分化、试管苗生根、移栽、扦插所需要的条件，建立起优良植株的无性系及快速繁殖技术．结果证明，诱导嫩叶愈伤组织的理想培养基是MS＋BA0．4mg／L＋2，4-DO．4mg／L；愈伤组织分化的理想的培养基是MS＋BA0．5mg／L；生根的理想培养基是1，2MS＋IAA0．4mg／L～0．8mg／L，以炉灰渣为试管苗的移栽扦插基质，移栽成活率为100％，扦插成活率为95％；田间栽培的试管菌长势好于实生苗。     

耐盐能源植物海滨锦葵(Kostelezkya virginica)再生体系的建立

对海滨锦葵组织培养再生体系进行了研究，结果表明：1．海滨锦葵茎段外植体较好的愈伤组织诱导培养基组合为MS＋KT1．5mg／L＋IAA2．0mg／L或MS＋6-BA4．0mg／L＋IBA0．2mg／L＋Inositol50mg／L．2．海滨锦葵愈伤诱导不定芽的较好培养基组合为MS＋NAA2．0mg／L＋2iP5．0mg／L和MS＋NAA0．5mg／L＋2iP5．0mg／L．3．海滨锦葵腋芽分化不定芽的较好培养基组合为改良MS（含2倍有机营养）＋KT0．4mg／L＋IAA1．0mg／L．MS基本培养基中适当提高有机营养的含量对腋芽的增殖有促进作用，实验中以有机营养的含量为基本培养基2倍时效果较好．4．不定芽在1／ZMS的培养基中附加IBA1．0mg／L牛根最好．     

三种切花单头菊试管苗叶片植株的再生

选用3个切花单头菊品种,以试管苗叶片为外植体,通过愈伤组织途径和直接诱导芽途径建立再生体系,探讨叶片不同部位、激素种类及浓度、基因型对再生率的影响．结果表明：3个品种中“贵”诱导愈伤组织能力和分化芽能力最强,MS＋NAA 1mg／L＋6-BA 2～3mg／L为诱导愈伤组织的适宜培养基,MS＋6-BA 1mg／L＋IAA 0．3～0．5mg／L为分化不定芽的适宜培养基．     

杉木合子胚愈伤组织的诱导及植株再生

以杉木成熟及未成熟合子胚为外植体，研究了基本培养基、植物激素、合子胚的发育阶段等因素对杉木愈伤组织的诱导及不定芽分化的影响。结果表明：1／2MS＋2mg／L 2，4-D＋1．0mg／L 6-BA＋1．0mg／L KT＋30g／L蔗糖是成熟合子胚诱导愈伤组织的最佳培养基；处于胚胎选择阶段或者组织与器官分化阶段的幼胚，能诱导出松软、晶莹透明的愈伤组织，诱导频率为2％～6％。成熟阶段的幼胚诱导出的愈伤组织的外观形态与成熟合子胚诱导出的愈伤组织相似，愈伤组织的诱导频率随着合子胚发育的成熟而迅速提高；DCR＋1．5mg／L 6-BA＋1．5mg／L KT＋20g／L蔗糖是诱导不定芽发生的最佳培养基。高约1．5cm的不定芽转入生根培养基，生根率可达100%。     

花生愈伤组织的诱导及植株再生

研究花生愈伤组织的诱导及植株再生的条件．用汕油71花生幼苗上胚轴、下胚轴、子叶、幼叶等不同外植体类型进行比较,发现幼叶较易诱导愈伤;用不同激素质量浓度配比研究对花生幼叶愈伤诱导的影响,发现IAA（吲哚乙酸）对花生的愈伤诱导效果较2,4-D（2,4-二氯苯氧乙酸）和NAA（萘乙酸）好;用不同叶龄及叶切段比较,发现以10d苗龄的叶片中部切段愈伤诱导率较高取苗龄10d的花生无菌苗的幼叶中段为外植体,置于ρ（MS＋IAA）3mg／L＋ρ（BA）1mg／L培养基中培养,30d后诱导率达到100％且愈伤呈淡绿色、半透明、疏松状．50d后转至ρ（MS＋IAA）0．5mg/L＋ρ（BA）2mg／L＋ρ（TDZ）0．5mg／L分化培养基中诱导芽（TDZ,噻重氮苯基脲）,截取诱导芽单芽,转接至根诱导培养基中。获得再生植株     

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。     

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.