1,3-二硫杂环戊烯-4,5-二（对羧基）硫苄基-2-硫酮的合成

介绍了由（NBu4）2[Zn（dmit）2]合成1,3-二硫杂环戊烯-4,5-二（对羧基）硫苄基-2-硫酮的三种方法,讨论了实验条件和实验方法,并将三种方法进行了比较,指出了最佳方法是由dmit的锌配合物直接与有机卤化物反应,该种方法具有操作简便、晶型好和产率较高的优点,是目前合成目标产物的首选方法。     

利用硫羰基化合物合成杂环

本报道了a-硫羰基硫代甲酰胺与邻苯二胺、氨基脲、苯乙炔在磷试剂存在下的双分子自身缩合反应．结果表明它们分别生成了2-吗啉基-3-苯基喹喔啉、5-吗啉基-6幡苯基-1，2，4．三嗪-3-酮、噻吩衍生物和2，2，4，5-四取代-1，3-二硫杂环戊烯-4的衍生物等杂环化合物．     

4,5—亚乙二硫基—1,3—二硫杂环戊烯—2—酮衍生物的合成

以二（１,３－二硫杂环戊烯－２－硫酮－４,５－二硫）合锌酸四乙基铵盐（Ｉ）为原料,合成四种未见文献报道的４,５－亚乙二硫基－１,３－二硫杂环戊烯－２－硫酮及酮ＩＶａ,ＩＶｂ,Ｖａ,Ｖｂ,其中由路线Ａ和Ｂ分别制得了Ｖａ;对ＩＶｃ和由路线Ａ制备Ｖｂ失败的原因进行了讨论。     

4,5-二苄硫基-1,3-二硫杂环戊烯-2-硫酮的制备和晶体结构

合成了新型二硫杂环戊烯类化合物 4,5 二苄硫基 1,3 二硫杂环戊烯 2 硫酮 ,并用IR ,NMR和X射线衍射进行了结构表征 .结果表明 ,标题化合物晶体属正交晶系 ,空间群为Pna2 1 ,晶胞参数a =1.34 15 (4 )nm ,b =2 .2 432 (5 )nm ,c=0 .5 5 94(2 )nm ,α =β =γ =90° ,V =1.6 834 (9)nm3 ,Z =4,Dc=1.494g/cm3 ,最终偏离因子R =0 .0 35 5 .     

4,5-二对氯苄硫基-1,3-二硫杂环戊烯-2-硫酮配体的合成及其结构表征

由两种途径[dmit的钠盐与卤代物反应和（dmit）2Zn（NBu4）2直接与卤代物反应]合成4,5-二对氯苄硫基-1,3-二硫杂环戊烯-2-硫酮配体,对两种途径的优缺点做了比较和分析,用IR谱图简单的表征了其结构.     

新型1，3-二硫杂戊烯-2-硫酮衍生物的合成

通过4,5-二硫基-1,3-二硫杂戊烯-2-硫酮的锌配合物和几种二卤化物的反应,成功地合成了3种1,3-二硫杂戊稀-2-硫酮的衍生物。讨论了这些化合物的实验条件和方法,并对目标化合物应用IR、^1HNMR、MS等进行了论证解析。     

新型配体9'-(4,5-二烷基硫-1,3-二硫杂环戊烯-2-叉)4',5'-二氮杂芴的铜(Ⅰ)配合物的合成及光谱研究

首次用Cu(CH3CN)4ClO4与新型配体9'-(4,5-二烷基硫-1,3-二硫杂环戊烯-2-叉)4',5'-二氮杂芴合成了两种Cu(Ⅰ)配合物,并对配合物进行了元素分析和光谱的测定.提出了一维链状的可能结构.     

2,3-二甲氧羰基-6,7-二氰基四硫富瓦烯衍生物合成

在亚磷酸三乙酯存在下,利用高度稀释技术,通过4,5-二氰基-1,3-二硫杂环戊烯-2-酮和4,5-二甲氧羰基-1,3-二硫环戊烯-2-硫酮的交叉偶联反应,成功地合成了关键前躯体二氰基四硫富瓦烯衍生物,用NMR、TOF-Ms和IR表征了其结构,并用循环伏安法和紫外吸收光谱初步评价了四硫富瓦烯衍生物的电化学性质和光物理性质。     

6-甲基-5-乙酰基-2-(3'-吡啶基)-4-硫酮-1,3-(4H)噁嗪的合成

本文合成新的3－（3’－吡啶甲酰胺基）硫羰基－2,4－戊二酮（2）,研究了化合物（2）在碱催化条件下的环化行为,结果表明离析物为6－甲基－5－乙酰基－2－（3＇－吡啶基）－4－硫酮－1,3－（4H）嗪（3）．经元素分析、IR及1HNMR确认了（2）及（3）的结构．     

新型配体 9′-( 4 ,5-二烷基硫-1,3-二硫杂环戊烯-2-叉) 4′,5′-二氮杂芴的铜 (I)配合物的合成及光谱研究(英文)

首次用Cu(CH3CN) 4 ClO4与新型配体 9′ (4,5 二烷基硫 1,3 二硫杂环戊烯 2 叉 ) 4′ ,5′ 二氮杂芴合成了两种Cu(I)配合物 ,并对配合物进行了元素分析和光谱的测定 .提出了一维链状的可能结构     

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.