流动注射化学发光体系自动测定异烟肼的溶出度

建立了一种简单而灵敏的流动注射化学发光体系自动测定异烟肼片的溶出度的方法，并对这种新颖的K3Fe(CN)6-异烟肼化学发光体系的影响因素进行了研究．在优化的实验条件下获得测定异烟肼的线性范围为O．05—150mg／L，检出限(3σ)为0．0lmg／L，对10．0mg／L异烟肼进行11次测定，其相于标准误差≤1．0％．测定了2种不同来源的异烟肼片的溶出度，结果与药典标准方法测得值一致．体系具有稳定性好、灵敏度高、简单、方便和宽动态测量范围，能便捷地在线监测异烟肼的溶出全过程．     

表面活性剂—火焰原子吸收法测定人发中的微量铁

研究了用表面活性剂十二烷基硫酸钠测定铁的火焰原子吸收法,摸索了测定条件,在1mol/L盐酸介质中,选定合适的仪器工作条件,铁含量0．02－0．2mg/L范围内符合比尔定律,检出限量铁浓度为1.8mg/L,经实际样品分析,变异系数不大于3．6％,样品加标回收率为98％－102％。     

非洲菊的离体培养及其快速繁殖

选用非洲菊（Gerbera jamesonii Bolus)4个黑蕊花品种进行组培快繁研究，结果表明，长0．5－1．0cm的嫩叶在MS＋2．0mg/L 6-BA 0.1mg/L NAA培养基上12－21d均可诱导出芽，分化频率60％以上；继代培养时MS＋0．3mg/L 6-BA 0.1mg/L NAA,MS 1.0mg/L 6-BA 0.1mg/L NAA ey MS 0.3mg/L 6-BA 0.1mg/L PP333 0.1mg/L NAA3种培养基交替使用，平均增殖系数可达5．1；生根培养基为MS＋0．1ms/L PP333 0.1mg/L NAA，生根率达95％以上；生根试管苗移栽于泥炭土中15－20d可以成活，25d后可定植于大田，3－4个月即可开花，该研究为黑蕊花品种种苗产业化提供了快繁技术。     

反相高效液相色谱仪测定水中的F^—

采用IC柱反相高效液相色谱法测定了水中的F^-．方法的线性范围为0—500mg/L，进样量为25μL时，最低检出限为0．1mg/L.测定实验室合成样品，相对标准偏差为2．86％；测定已知F^-标准溶液，相对误差为1．30％，结果良好，方法的重复性和稳定性好．     

SBR法处理广东地区城市污水实验研究

采用SBR工艺对广州地区城市污水进行实验研究,结果表明：在一个反应装置内,可以达到既能去除有机物又能脱氮除磷的效果,处果后,出水BOD5浓度为5．12－13．62mg/L,去除率达85％－93％;出水COD浓度为10．7－32．2mg/L,去除率达82％－88％;出水NH3－N浓度在2．83－9．83mg/L,去除率达53％087％;出水TP浓度为0．1－0.45mg/L;去除率达85％－99％。     

玫瑰叶片愈伤组织诱导的初步研究

试验以玫瑰叶片为试材，在四种培养基上进行愈伤组织诱导，结果发现，MS＋2．4－D 2．0mg/L 6-BA1.0mg/L 水解乳蛋白250mg/L的培养基诱导率最高，1达到100％。     

硼酸基亲和层析纯化5-甲基尿苷

利用聚乙烯系大孔聚合物与间氨基苯硼酸偶联制备亲和介质，配基密度为每克湿胶0．92mmol。最佳吸附条件为pH9．0和2．0mol/LNaCl；最佳洗脱条件为0．1mol/LHCl。测定了吸附等温线，算得解离常数Kd为0．155mol/L，最大吸附量qm为每克湿胶78．8mg。将含有胸腺嘧啶的5－甲基尿苷溶液进行亲和层析，5－甲基尿苷收率为56．3％。     

大孔径毛细管气相色谱法测定茶水中的三唑仑

建立了一种以硝基安定为内标，FID为检测器的测定茶水中的三唑仑的大孔径毛细管气相色谱新方法。测定结果表明三唑仑的线性范围为10－100mg/L，其最低检测浓度为10mg/L，相对标准偏差为2．6％，平均回收率为85．6％。该法简便，准确，重现性好，结果令人满意。     

直接荧光法测定环境水中痕量芳胺

研究了用芝光光度法直接测定不中痕量芳的新方法,芳胺在紫外光照射下,激发出较强的荧光（λex=280nm,λem=340nm),能直接进行荧光测定,方法检出限为4．3μg/L,性范围为0－2．0mg／L,相对标准偏差为0＝28％,回收率达99％－101％,方法简便、快速、灵敏度高、无毒、安全。     

普通念珠藻蛋白多糖对植物生长的促进作用

从普通念珠藻中提取分离出蛋白多糖,将蛋白多糖配制成0．5mg/L,mg/L,2mg/L,5mg/L,10mg/L溶液,以蒸馏水为对照,进行水稻,黄豆,蕃茄,迟花2号菜心,矮脚葵扇黑叶白菜,绿豆种子的浸种发芽试验,浸种时间5h-5d,培养温度26－30度,每培养皿50粒,每种浓度重复3次,随机移取相同数量的幼苗进行培养,测定茎长,观察根系生长情况,结果水稻,黄豆,番茄,迟花2号菜心,黑叶白菜,绿豆种子的发芽率分别比对照组增长23．3％,13．3％,12．3％,4．0％,4．7％,9．3％,浓度以1mg/L-5mg/L为最佳,盆栽后2mg/L普通念珠藻蛋白多糖喷洒过的绿豆平均茎长比对照增长0．9cm,根系比对照组发达。     

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.