簇合物Co_6(μ_3-S)_2(μ_4,η~2-SPR)(CO)_(14)(R=Fc,naphthylC_(10)H_7)、Ru_3(μ_3-S)(μ-H)_2(CO)_9和Ru_4(μ_3-S)(μ_3-PC_(10)H_7)(CO)_(10)的合成和表征

用 P2 S5分别与萘和二茂铁反应 ,得到两种配位基前体 :C10 H7PS SSPSC10 H7( L1,C10 H7为 naphthyl萘基 )和 Fc PS SSPSFc ( L2 ,Fc为二茂铁基 ) .L1和 L2 分别与 Co2 ( CO) 8反应 ,得到两种新的含 S、P桥基的六核钴羰基簇合衍生物 :Co6( μ3-S) 2 ( μ4 ,η2 -SPC10 H7)( CO) 14 ( )和 Co6(μ3-S) 2 (μ4 ,η2 -SPFc) ( CO) 14 ( ) .L1与 Ru3( CO) 12 反应得到 Ru3(μ3-S)(μ-H) 2 ( CO) 9( )和 Ru4 (μ3-S) (μ3-PC10 H7) ( CO) 10 ( ) .通过元素分析和谱学表征 ,对簇合物 ～ 的结构进行了推测 .     

簇合物Co6(μ3-S)2(μ4,η2-SPR)(CO)14(R=Fc,naphthyl

用P2S5分别与萘和二茂铁反应，得到两种配位基前体：(L1，C10H7为naphthyl萘基)和(L2，Fc为二茂铁基).L1和L2分别与Co2(CO)8反应，得到两种新的含S、P桥基的六核钴羰基簇合衍生物：Co6(μ3-S)2(μ4,η2-SPC10H7)(CO)14(Ⅰ)和Co6(μ3-S)2(μ4,η2-SPFc)(CO)14(Ⅱ).L1与Ru3(CO)12反应得到Ru3(μ3-S)(μ-H)2(CO)9(Ⅲ)和Ru4(μ3-S)(μ3-PC10H7)(CO)10(Ⅳ).通过元素分析和谱学表征，对簇合物Ⅰ～Ⅳ的结构进行了推测.     

混配型茂基稀土氯化物Ln(C5H5)(C5H4CH3)Cl(Ln=Y, Gd, Er, Yb)的合成和结构研究

三氯化稀土依次与等摩尔的甲基环戊二烯基钠和环戊二烯基钠在四氢呋喃(THF)中反应，合成了4个新的混配型茂基稀土氯化物Ln(C5H5)(C5H4CH3)Cl[Ln=Y(1)，Gd(2)，Er(3)，Yb(4)]，在THF中加热回流，环戊二烯能质解化合物4的甲基环戊二烯基配体，得到同环配合物Yb(C5H5)2Cl(5)，所有这些化合物都经过了元素分析、红外和质谱表征，其中配合物2和5的结构还得到单晶X射线分析确证。     

簇合物Co6（μ3—S）2（μ4,η^2—SPR）（CO）14（R=Fc,naphthyl C10H7）、Ru3（μ3—S

用P2S5分别与萘和二茂铁反应,得到两种配位基前体：C10H7－P＝S－S－S＝S－P－S－S－C10H7（L1,C10H7为naphthyl萘基)和Fe-P＝S－S＝S－P－Fc-S(L2,Fc为二茂铁基）。L1和L2分别与Co2(CO)8反应,得到两种新的含S,P桥基的六核钴羰基簇合衍生物：Co6(μ3-S)2(μ4,,η^2-SPC10H7)(CO)14(Ⅰ)和Co6(μ3-S)2(μ4,η^2-SPFc)(CO)14(Ⅱ).L1与Ru3(CO)12)反应得到Ru3(μ3-S)(μ-H)2(CO)9(Ⅲ)和Ru4(μ3-S)(μ3-PC10H7)(CO)10(Ⅳ).通过元素分析和谱学表征,对族合物Ⅰ－Ⅳ的结构进行了推测。     

含PNNC桥基配体的二核、四核钴羰基簇合物的合成、表征和结构研究

用 Co2 (CO) 8与两个含 SPNNC五员杂环前配体 SP(C6H4 OR) (S) N(C6H5) NCMe(R=Me,Et) (1 -硫 -2 -对烷氧基苯基硫化磷 -3 -苯基氮 -4 -氮 -5-甲基杂环戊烯 )反应 ,得到三类六个含PNNC桥基和 S、P桥基配体的二核、四核钴簇 (其中五个为新物种 ) .在反应中 ,前配体中的 C-S、P-S、P=S、P-N键发生断裂 ,形成多种复杂分子片与金属原子配位 ,重新组建成三类不同的羰基钴簇 .对这六个物种进行了元素分析及 IR、1HNMR,MS表征 ,其化学式分别为 :Co4(CO) 10 (μ4 -S) (μ4 -PC6H4 OR) ( a:R=Me, b;R=Et) ,Co4 (CO) 10 (μ3 -S)〔μ-η2 -P(C6H4 OR) N(C6H5) NCMe〕( a:R=Me, b:R=Et)和 Co2 (CO) 5〔μ-η3 -P(C6H4 OR) N(C6H5) NCMe〕( a:R=Me, b:R=Et) .并用 X-ray衍射法测定了 b 的单晶结构 ,结果表明 ,该晶体属单斜晶系 ,P2 (I) /C空间群 ,晶胞参数为 a=1 9.0 65(4 ) ,b=1 0 .0 81 (2 ) ,c=1 6.663 (3 ) ;β=97.3 6(3 )°.分子骨架为平面三角钉型 .并对其它五个簇合物进行了结构分析     

含N-哌啶乙基取代环戊二烯基配体二价稀土金属配合物的合成、表征及催化性能的研究

用N-哌啶乙基氯C5H10NCH2CH2Cl与1当量的CH3C5H4Na冰水浴条件下在THF中反应,以53%的产率得到C5H10NCH2CH2C5H4CH3(1).用化合物1与1当量的n-BuLi冰水浴条件下在THF中反应,再与2当量的Me3SiC1反应,以86%的产率得到C5H10NCH2CH2C5H3(CH3)(SiMe3)(2).化合物2分别以当量比2:1与化合物[(Me3Si)2N]3LnIII(μ-Cl)Li(THF)3(Ln=Yb,Eu)在甲苯中回流反应,分别以42%和52%的产率得到二价稀土金属化合物{η5:η1-[C5H10NCH2CH2C5H2(CH3)(SiMe3)]}2LnII[Ln=Yb(3),Eu(4)].化合物1,2,3,4经过波谱及元素分析表征确认.研究了配合物3和4作为单一组分催化剂催化己内酯聚合反应的催化活性.     

族合物Co4（μ3—S）[P（S）（OCH3）2]2（CO）9、Co（μ，η^2—S2）[P（O—i—C3H7）2]2（CO）10和Co6（μ3—S）2（μ—P五节杂环化合物）（μ6—η^3—P五节环化合物）（μ—CO）（CO）10的合成和谱学表征

用Co(CO)8与3个含硫、磷杂原子的有机前配体反应,得到两四核和一个六核含硫、磷原子配位分子片的新颖钴羰基族合衍生物,通过元素分析、^1HNMR和MS等谱学表征,确定它们的化学组成如下：族合物Co4(μ3－S）[P（S）（OCH3）2]2（CO）9、Co（μ,η^2－S2）[P（O－i－C3H7）2]2（CO）10（Ⅱ）和Co6（μ3－S）2（μ－P五节杂环化合物）（μ6－η^3－P五节环化合物）（μ－CO）（CO）10（Ⅲ）,对它们可能的立本结构进行了推测。     

簇合物Co4(μ3-S)[P(S)(OCH3)2]2(CO)9、Co4(μ,η2-S2)[P(O-i-C3H7)2]2(CO)10和(μ-CO)(CO)10的合成和谱学表征

由Co2(CO)8与3个含硫、磷杂原子的有机前配体反应,得到两个四核和一个六核含硫、磷原子配位分子片的新颖钴羰基簇合衍生物.通过元素分析、1HNMR和MS等谱学表征,确定它们的化学组成如下:Co4(μ3-S)[P(S)(OCH3)2]2(CO)9(Ⅰ)、Co4(μ,η2-S2)[P(O-i-C3H7)2]2(CO)10(Ⅲ)和Co6(μ3-S)2.对它们可能的立体结构进行了推测.     

含磷、硫、氮原子配位基的三核、四核钴羰基簇合衍生物的合成与表征

迄今为止 ,有报道用含磷、硫、氮的有机物配体和 Co2 ( CO) 8合成了许多结构新颖、成键独特的钴羰基簇合衍生物 ,其中就包括许多三核和四核的钴羰基簇合物〔1～ 5〕.本文用四个含有 C=S、P=S以及 PPh OR分子片的配位体 L1,L2 ,L3 ,L4 与 Co2 ( CO) 8反应 ,得到了两个三核钴羰基     

簇合物Co_4(μ_3-S)〔P(S)(OCH_3)_2〕_2(CO)_9、Co_4(μ,η~2-S_2)〔P(O-i-C_3H_7)_2〕_2(CO)_(10)和Co_6(μ_3-S)_2(μ-“非汉字符”)(μ_6,η~3-“非汉字符”)(μ-CO)(CO)_(10)的合成和谱学表征

由 Co2 (CO) 8与 3个含硫、磷杂原子的有机前配体反应 ,得到两个四核和一个六核含硫、磷原子配位分子片的新颖钴羰基簇合衍生物 .通过元素分析、1HNMR和 MS等谱学表征 ,确定它们的化学组成如下 :Co4 (μ3 -S)〔P(S) (OCH3 ) 2 〕2 (CO) 9( )、Co4 (μ,η2 -S2 )〔P(O-i-C3 H7) 2 〕2 (CO) 10 ( )和 Co6(μ3 -S) 2 (μ-SP ) (μ6,η3 -SP ) (μ-CO) (CO) 10 ( ) .对它们可能的立体结构进行了推测     

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.