2,5—二甲基—3（2H）—呋喃酮的合成研究

以丁二酮为主要原料，经缩合、脱羧反应，以６２．３％的总收率合成了２，５－二甲基－３（２Ｈ）－呋喃酮。用ＵＶ，ＩＲ和＾１Ｈ－ＮＭＲ证实了其结构。     

5—（4—磺基—1—萘偶氮）—8—羟基喹啉离解常数及其与镱显色反应分光光度法的研

本文用分光光度法测定了显色剂５－（４－磺基－１－萘偶氮）－８－羟基喹啉的离解常数,并研究了该显色剂与Ｙｂ的络合情况。结果表明,在ｐＨ为２－１２之间,该显色剂共有三种存在形式：Ｈ２Ｌ（ＮＨ＾＋）、ＨＬ＾－、Ｌ＾２－,它的离解常数为Ｋａ１＝１．６１×１０＾－５,Ｋａ２＝４．１０×１０＾－９,在ｐＨ＝９．６０附近,该显色剂可与Ｙｂ＾３＋形成３：１、２：１、１：１的配合物。     

3－（5－甲基异恶唑－3－基）－4－芳酰基－1．2．4－三唑啉－5－巯基乙酸的合成

以３－（５－甲基异恶唑－３－基）－４－芳酰基－１．２．４－三唑啉－５－硫酮为原料，合成了８个新的３－（５－甲基异恶唑－３－基）－４－芳酰基－１．２．４－三唑啉－５－巯基乙酸类化合物，该化合物经ＩＲ，￣１Ｈ－ＮＭＲ和ＭＳ裂解碎片分析确定其结构。     

糖苷合成研究（xv）2—苯硫基—5—氟—3H—4—嘧啶酮糖苷？…

采用相转移催化法和Ｋｏｅｎｉｇｓ－Ｋｎｏｏｒ反应,使乙酰基－α－Ｄ－溴代糖１与２－苯硫基－５－批－３Ｈ－４－嘧啶酮２（或其银眩盐４）反应,合成了５个相应的糖苷类化合物,其结构经ＩＲ、＾１ＨＮＭＲ和元素分析所证实。     

CS2在Cu—S键中插入产物（Ph3P）2Cu（S2CSR）与溶剂反应的…

ＣＳ２在Ｃｕ－Ｓ键中插入产物（Ｐｈ３Ｐ）２Ｃｕ（Ｓ２ＣＳＲ）（Ｒ＝Ｂｕ＾ｔ或Ｃ６Ｈ２Ｐｒ３－２，４，６）与ＣＨ２Ｉ２－丙酮－Ｐｙ混合溶剂反应，获得了双核铜化合物〔ＣｕＩ（ＰＰｈ３）（Ｐｙ）〕２和〔ＣＨ２（Ｃ５Ｈ５Ｎ）２〕２〔Ｃｕ２Ｉ６〕两个化合物晶体，用Ｘ射线晶衍射法测得它们的晶体结构。     

稀土与吡啶甜菜碱和2,2‘—联吡啶配合物的研究

合成了稀土土离子（Ｌａ＾３＋，Ｎｄ＾３＋，Ｅｕ＾３＋，Ｇｄ＾３＋，Ｔｂ＾３＋，Ｅｒ＾３＋）与吡啶乙酸内盐（Ｃ５Ｈ５Ｎ＾＋ＣＨ２ＣＯ＾－２，ｐｙｂ）及，２，２‘－联吡啶的三元配合物。通过元素分析，红外光谱等测试手术，确定配合物的组成为ＲＥ２（ｂｐｙ）５（ｐｙｂ）４（ＣｌＯ４）６．５Ｈ２Ｏ。测定了Ｅｕ＾３＋配合物的晶体结构，属三斜晶系。     

胸苷5′位修饰物的合成、表征及抗HIV活性

合成了两个胸苷５′位修饰物，即５′－叠氮－胸苷（５′Ｎ３－Ｔ）和５′－氨基－胸苷（５′ＮＨ２－Ｔ），以及３′－脱氧－２′，３′－二脱氢胸苷（Ｄ４Ｔ），对照物通过ＩＲ，ＵＶ／ｖｉｓ，１ＨＮＭＲ和ＭＳ等方进行了表征．抗ＨＩＶ活性试验表明，５′－Ｎ３－Ｔ与Ｄ４Ｔ对于ＨＩＶ－１感染的ＭＴ－４淋巴细胞具有较好的抑制作用，而５′－ＮＨ２－Ｔ′几乎没有活性．由于５′－Ｎ３－Ｔ缺少５′－ＯＨ不能磷酸化，可能其抑制ＨＩＶ复制的机理与Ｄ４Ｔ等其它核苷药物不同     

〔Eu(NTO)_3(H_2O)_5〕5H_2O的合成和晶体结构

用３－硝基－１，２，４－三唑－５－酮（ＮＴＯ）的锂盐水溶液与Ｅｕ２Ｏ３的稀硝酸溶液反应，合成了ＮＴＯ的铕配合物，其单晶结构用Ｘ射线分析法进行了测定，确定了它的结构式为〔Ｅｕ（ＮＴＯ）３（Ｈ２Ｏ）５〕５Ｈ２Ｏ。其晶体属单斜晶系，空间群为Ｐ２１／ｎ，最终偏离因子Ｒ为０．０２３。晶胞参数如下：ａ１．８７２０（２）ｎｍ，ｂ０．６５４８（３），ｃ１．９３２３（３）ｎｍ，β９５．３３（１）°，Ｖ２．３５８３（５）ｎｍ３，Ｚ４，Ｄｃ２．０２６ｇｃｍ－３，μ２７．６７８ｃｍ－１，Ｆ（０００）１４３２。铕离子的配位数为８，其配位多面体为畸变的十二面体     

2－烷氧基－5－氟－3H－4一嘧啶酮的合成

以２－氯－５－氟－３Ｈ－４－嘧啶酮和相应的醇钠，在常压回流条件下反应，合成了２－烷氧基－５－氟－３Ｈ－４－嘧啶酮类化合物．该法具有操作方便，反应周期短，产品收率较高等优点．其中２－异丙氧基、２－异丁氧基、２－异戊氧基和２－（２’一乙基丁氧基）－５－氟－３Ｈ－４－嘧啶酮均为未见文献报道的新化合物，其结构经ＩＲ、１ＨＮＭＲ和元素分析所证实．     

2-(H酸偶氮)-4,5-二硝基酚光度法测定铝的研究和应用

研究了新试剂２－（Ｈ－酸偶氮）－４,５－二硝基酚（ＨＡＤＮＰ）与铝的显色反应,在ＰＨ５．３的六次甲基四胺－盐酸缓冲介质中,ＨＡＤＮＰ与Ａｌ＾３＋生成３比１的紫色络合物,λｍａｘ＝５７０ｎｍ,ε＝３．２９＊１０＾４Ｌ．ｍｏｌ＾－１．ｃｍ＾－１,Ａｌ质量浓度在０－４８０μｇ．Ｌ＾－１内符合比尔定律,方法用于水样测定,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.     

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.     

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.