镝—镧—邻氟苯甲酸—乙二胺体系荧光增敏效应

研究发现镝与邻氟苯甲酸有较强的荧光分析，并观察到镧存在下的共发光现象，研究了该反应的荧光特点和影响因素，确定了反应和测定的最佳条件，镧的加入使原有的１镝－邻氟甲苯甲酸－乙二胺体系的荧光强度增大８５倍。     

镝－钆－BPMPHD—CTMAB共发光体系的研究及其分析应用

镝－ＢＰＭＰＨＤ—ＣＴＭＡＢ离子缔合物体系具有较强的荧光强度．在该体系中，Ｇｄ３＋、Ｙ３＋、Ｌｕ３＋和Ｌａ３＋等稀土离子均能使镝的荧光增强，这是新发现的一种共发光体系．本文详细研究了镝－钆－ＢＰＭＰＨＤ－ＣＴＭＡＢ体系共发光效应的形成条件和影响因素．实验表明，在最佳测试条件下，镝在１．０×１０－７～６．０×１０－６ｍｏｌ／Ｌ范围内与其荧光强度呈线性关系，检出限为２．０×１０－８ｍｏｌ／Ｌ，它比无Ｇｄ３＋存在时体系的检出限降低了一个数量级．应用该体系测定稀土氧化物及稀土合成样品中痕量镝，结果较为满意．     

动力学测定痕量邻菲罗啉的研究

研究发现在酸性介质中，痕量邻菲罗啉能灵敏地加速过氧化氢氧化二甲苯胺蓝褪色的指示反应。研究了该反应的最佳条件及动力学参数，建立了一种测定痕量邻菲罗啉的新方法。方法检测限为１．０７×１０－８ｍｏｌ·Ｌ－１邻菲罗啉，测定范围为０～６×１０－６ｍｏｌ·Ｌ－１邻菲罗啉，用于测定试样中痕量邻菲罗啉，获得了满意的结果。     

铜—芦丁极谱络合吸附波的研究

在０．０１ｍｏｌ·Ｌ－１ＫＯＨ底液中（ＰＨ＝１１．７），用单扫示波极谱法可获得灵敏的铜—芦丁络合吸附波，铜浓度在５．０×１０－７～５．０×１０－５ｍｏｌ·Ｌ－１范围内与二阶导数波峰高成正比关系．检测限为３．０×１０－７ｍｏｌ·Ｌ－１，测得电活性络合物组成为Ｃｕ（Ⅱ）∶Ｒｔ＝１∶１，条件稳定常数为β＝１．４×１０５．     

表面活性剂增敏四环素碱性降解荧光法研究

提出了表面活性剂增敏的碱性降解荧光法测定四环索新方法，四环素在０．５ｍｏｌ／ＬＮａＯＨ溶液中反应，生成强荧光降解物，加入十六烷基三甲基溴化铵后。四环素荧光强度增强１５０倍，浓度在９．０×１０￣（－９）～１．０×１０￣（－６）ｍｏｌ／Ｌ范围内荧光强度与四环素含量成正比。本法成功地用于尿液和血清中四环素的回收测定。     

用荧光法测定蔬菜中的微量抗坏血酸

对抗坏血酸增强钙黄绿素－ＣＵ（Ⅱ）－ＮＨ４ＳＣＮ体系荧光强度进行了研究．结果表明：在实验条件下，抗坏血酸的浓度在１．０×１０－６～８．０×１０－６ｍｏｌ／Ｌ范围内与体系的荧光强度有良好的线性关系，检测限为１．０×１０－６ｍｏｌ／Ｌ．方法已用于测定蔬菜样品中的微量抗坏血酸．     

胶束增敏荧光光度法测定苯甲酸雌二醇的研究

本文报道了高灵敏度荧光增效法测定苯甲酸雌二醇（ＥＢ）的新方法。在表面活性剂溴化十六烷基三甲铵（ＣＴＭＡＢ）存在下，测定下限为４．０×１０－９ｍｏｌ·Ｌ－１，线性范围为４．２×１０－９～３．８×１０－６ｍｏｌ·Ｌ－１。本法应用于样品中苯甲酸雌二醇的测定，结果满意。     

镝(Ⅲ)-1,10-双(1′-苯基-3′-甲基-5′-氧代吡唑-4′-基)癸二酮-[1,10]-溴化十六烷基三甲胺体系的荧光性质及其应用研究

研究了镝（Ⅲ）－１,１０－双（１′－苯基－３′－甲基－５′－氧代吡唑－４′－基）癸二酮－［１,１０］（ＢＰＭＰＤＤ）－溴化十六烷基三甲胺（ＣＴＭＡＢ）体系的荧光性质,探讨了体系的组成比及影响体系荧光性质的多种因素,拟定了应用该体系测定Ｄｙ（Ⅲ）的新方法,在２０×１０－６～４０×１０－９ｍｏｌ·Ｌ－１范围内Ｄｙ（Ⅲ）浓度与荧光强度呈线性关系,检测限为３３×１０－１０ｍｏｌ·Ｌ－１．将该法应用于合成样品中微量Ｄｙ（Ⅲ）的测定,结果满意     

淀粉—KI体系光度法测定微量铜（Ⅱ）的研究

本文利用碘与淀粉的高灵敏显色反应，建立了光度法测定微量铜的新分析方法。该法简单易行，灵敏准确．Ｃｕ２＋离子浓度在１．０×１０－６～６．０×１０－５ｍｏｌ．Ｌ－１区间符合比耳定律，检测限为５×１０－７ｍｏｌ．Ｌ－１。对水样中微量铜的测定．回收率在９８．２％～９９．６％之间变化，ＲＳＤ为２．２％和２．５％。     

丁基罗丹明B—钨酸钠—PVA高灵敏光度法测定痕量钯的研究

研究了在聚乙烯醇（ＰＶＡ）存在下,钯与钨酸钠和丁基罗丹明Ｂ（ＢＲＢ）反应形成的有色离子缔合物用于痕量钯的光度法测定．最佳条件为：［Ｈ２ＳＯ４］＝１．２ｍｏｌ·Ｌ－１,［ＷＯ２－４］＝９．１×１０－５ｍｏｌ·Ｌ－１,［ＢＲＢ］＝３．０×１０－５ｍｏｌ·Ｌ－１．缔合物的最大吸收位于５７５ｎｍ处,表观摩尔吸光系数ε＝７．９８×１０７Ｌ·ｍｏｌ－１·ｃｍ－１．钯量在０～１０ｎｇ／２５ｍｌ范围内服从比尔定律．体系至少稳定１４０ｈ,检测限（３σ）０．０４８μｇ·Ｌ－１（ｎ＝１０）,对０．４０μｇ·Ｌ－１Ｐｄ（Ⅱ）测定的相对标准偏差为３．３９％（ｎ＝１１）．缔合物的摩尔比为Ｐｄ∶ＢＲＢ＝１∶４．考察了５０多种共存离子的影响．本法已用于炭基和铝基钯催化剂中微量钯的测定,结果满意     

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.     

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.     

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.     

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.     

The Analects and the Moment in Peking——The influence of a Confucian education system on the personality formation,the way of thinking and the fate of the main characters

0.Preface China has long been boasting of its colorful and immense culture which comprises of Taoism,Confucianism and Buddhism.The interwoven influence among the religions on Chinese way of thinking,on the nation＇s behavior in their social life throughout the long history is beyond list.