磺酰胺类萃取剂对锌、镉的萃取性能

磺酰胺类萃取剂对锌、镉的萃取性能杨勇，陈秉倪，陈龙梅，余旭峰研究了２－（十二烷基苯磺酰胺）噻唑和２－（十二烷基苯磺酰胺）苯并噻唑萃取锌、镉的行为．研究表明，这两种革取剂在一定的条件下，能有效地革取锌（Ⅱ）和镉（Ⅱ），并采用斜率法探讨了它们对锌（Ⅱ）和...     

新型磺酰胺萃取剂对镍离子的萃取性能

合成了一种新型萃取剂，2－十二烷基苯磺酰胺喹啉（萃取剂I），研究了它和2－十二烷基苯磺酰胺噻唑（萃取剂Ⅱ）的萃取性能，研究表明，这两种萃取剂在一定的条件下，能有效地萃取NI^2 离子，同时采用斜率法探讨了它们对Ni^2 离子的萃取机理。     

P507萃取锌,镉的机理

本文采用２－乙基已基膦酸单（２－乙基已基）酯（简称Ｐ５０７）的磺化煤油溶液从硫酸体系中萃取锌、镉。应用斜率法确定其萃合物组成，井测定出表现萃取平衡常数。通过萃合物及Ｐ５０７的红外光谱确证其萃取机理为酸性络合萃取。     

二（2，4，4－三甲基戊基）膦酸萃取锌

研究了二（２，４，４－三甲基戊基）膦酸（ＣＹＡＮＥＸ２７２，ＨＡ）从硫酸介质中萃取锌（Ⅱ）的热力学，考察了磷酸三丁酯（ＴＢＰ）对萃取的影响。结果表明，ＣＹＡＮＥＸ２７２与锌形成ＺｎＡ２，ＺｎＡ２·ＨＡ和ＺｎＡ２·２ＨＡ三种配合物，相应萃取热焓△Ｈ°分别为－７５．５３、－５２．７１和－２９．８７ｋＪ．ｍｏｌ－１，依次相差约一个氢键的能量与反应中断裂氢键数目有关。ＴＢＰ与ＣＹＡＮＥＸ２７２萃取锌时生成协同配合物ＺｎＡ２·２ＨＡ·ＴＢＰ，系由分子缔合物２ＨＡ·ＴＢＰ与Ｚｎ（Ⅱ）直接配位产生，协同萃取反应平衡常数１５．８。同时还计算得到ＺＨＡ·ＴＢＰ的生成常数３１．７（３０３Ｋ）。     

关于用HDEHP从硫酸体系中液一液萃取分离镍和锌铁的研究

利用ＨＤＥＨＰ从硫醚体系中液一液革取分离镍和锌铁，研究了ＨＤＥＨＰ对Ｆｅ￣（３＋）Ｚｎ￣（２＋）、Ｎｉ￣（２＋）、Ｃｕ￣（２＋）的萃取行为，反萃取条件及三级连续萃取。结果表明：萃取除铁锌符合硫醚镍溶夜净化的要求外，镍的直收率达９８％以上，无废渣     

PT-28在硝酸体系中萃取三价镧系元素的研究

系统研究了２－乙基已氧基甲基膦酸二（２－乙基己基）酯（代号ＰＴ－２８）在硝酸介质中萃取三价镧系元素的行为，讨论了萃取剂浓度的变化、硝酸钠的浓度及温度变化对萃取率的影响，并对ＰＴ－２８萃取ＨＮＯ３的机理进行了探讨。     

N_（503）从H_（2）SO_（4）－Cl~－、Br~－、I~－体系中萃取铋

Ｎ＿（５０３）是国产的酰胺类萃取剂．它在有色和稀有金属萃取分离上得到了日益广泛的应用￣［１～３］．本文研究Ｎ＿（５０３）从Ｈ＿２ＳＯ＿４－ＮａＣｌ、Ｈ＿２ＳＯ＿４－ＮａＢｒ、Ｈ＿２ＳＯ＿４－ＫＩ三个体系中萃取铋的规律，探索萃取能力与水相络阴离子ＢｉＣｌ￣－＿４、ＢｉＢｒ￣－＿４和ＢｉＩ￣－＿４稳定性的关系．研究了水相酸度和Ｃｌ￣－、Ｂｒ￣－、Ｉ￣－浓度对Ｎ＿（５０３）萃取铋的影响，取得了较好的结果，不仅对有色和稀有金属的萃取分离有重要的实际意义，而且对萃取化学理论也有一定的价值．     

AEHPA从稀硫酸溶液中萃取铁的研究

该文研究了烷左膦酸单－２－乙基己酯从稀硫酸溶液中萃取铁伯机理和萃取平衡时间，并通过紫外可见光谱和红外光谱分析，推断了萃合物可能的分子结构，研究表明，萃取机理与溶液中铁离子的存在形式有关，Ｆｅ＾３＋、Ｆｅ（ＳＯ４）２＾－和Ｆｅ２（ＯＨ）４＾２＋皆可参与萃取。当ｐＨ值小于１．５，铁离子浓度不大于０．０１ｍｏｌ／Ｌ时，主要为Ｆｅ＾３＋，Ｆｅ（ＳＯ４）２＾－参与的２种萃取机理，萃取平衡时间分别约为１０ｍｉ     

稀释剂对HEHEHP萃取锌（Ⅱ）的影响

研究了不同稀释剂中，２－乙基己基膦酸单（２－乙基己基）酯从硝酸介质中对Ｚｎ（Ⅱ）的萃取，其萃取能力在不同稀释剂中按正己烷〉四氢化碳〉苯〉氯仿的顺序变化。萃取平衡常数与稀释剂的极性参数ＤＰ、Ｓ间呈线性关系。     

二(十二烷基苯磺酰胺喹啉)合铜(Ⅱ)的制备及表征

用自行制备的磺酰氯与8-氨基喹啉反应，得到十二烷基苯磺酰胺喹啉，并制得了二（十二烷基苯磺酰胺喹啉）合铜（Ⅱ）配合物。配合物用红外、^1H NMR和元素分析进行表征。     

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.