准二维铅锡电沉积物的相组成分析

研究了准二维铅锡电沉积物的相组成成份，在原始电解液中铅锡离子浓度相等，外加电极电位不变的情况下，不同生长部位的电沉积物的形貌和相组成均有很大差异。分析显示，沉积物中的铅锡均以固溶体的形式存在，生长前端的枝状沉积物是由细小的铅基固溶体和锡基固溶体弥散均匀分布、形成的共晶体；中后部的小球状沉积物其芯部为共晶体，而外层则是铅基固溶体。     

ZnO—CdO二元体系的导电机制和气敏效应

采用化学共沉淀与固相反应相结合的方法，合成了一系列不同Ｚｎ／Ｃｄ比氧化物粉料。研究了不同Ｚｎ／Ｃｄ比对相结构，电导与气敏性能的影响。没有发现Ｚｎ，Ｃｄ氧化物形成明显的置换固溶体或第三相，但存在间隙固溶体现象。     

陶瓷蜂窝载体表面Ce-Zr-O固溶体涂层的表征

研究了在陶瓷蜂窝载体表面直接涂载Ce-Zr-O固溶体涂层，采用XRD和Raman光谱对Ce-Zr-O固溶体涂层进行了表征，表明在陶瓷蜂窝载体表面形成了具有立方结构的Ce-Zr-O固溶体，高温焙烧有利于固溶体的形成．TPR结果表明，该固溶体涂层的形成使得还原温度降低。     

ZnO-CdO二元体系的导电机制和气敏效应￣①

采用化学共沉淀与固相反应相结合的方法，合成了一系列不同Ｚｎ／Ｃｄ比氧化物粉料。研究了不同Ｚｎ／Ｃｄ比对相结构、电导与气敏性能的影响．没有发现Ｚｎ，Ｃｄ氧化物形成明显的置换固溶体或第三相，但存在间隙固溶体现象。Ｚｎ／Ｃｄ比为８／２时，元件对Ｈ２和Ｃ２Ｈ２有较高的灵敏度和选择性。     

固溶体组态熵的统计分析与应用

本文根据原厂偏聚效应的统计分析计算出固溶体的组态熵．并导出混合自由能表达式，最后将结果应用于固溶体析出。事实表明脱溶时母相中的确存在与析出相成分相同的偏聚区；调幅分解温度远低于脱溶分解温度。     

固溶体技术用于AlN-SiC微波衰减材料改性

结合AlN-SiC二元系相图的理论分析，提出了利用固溶体技术实现AlN-SiC微波衰减材料性能优化的研究思路；采用热压烧结工艺，通过合理的烧结温度及保温时间的控制，制备了性能优异的AlN-SiC微波衰减材料。通过XRD、SEM、网络分析仪等测试手段，研究了材料的显微结构（晶粒尺寸和晶粒形状等）对材料微波衰减性能的影响。结果表明，AlN-SiC局部固溶体具有广频衰减特性，而AlN-SiC均质固溶体具有选频衰减特性；并初步探讨了AlN-SiC固溶体陶瓷的微波衰减机理。     

Sr在碱硬锰矿固溶体中的化学固溶量研究

以SrCO3、BaCOs、Al2O3和TiO2为原料，通过配方设计，采用高温固相反应，合成了单相固溶Sr的碱硬锰矿固溶体．借助于X射线衍射、扫描电子显微镜和电子探针波谱等分析手段，研究了配方设计、Sr在碱硬锰矿固溶体中的化学固溶量等问题．实验结果表明，采用高温固相反应工艺，容易合成掺Sr碱硬锰矿固溶体及单相掺Sr碱硬锰矿固溶体，但是Sr在碱硬锰矿固溶体中的最高化学固溶量与配方设计有关，当配方的化学式为SrxBa1Al2 2rTi6-24O16时，其最大化学固溶量为0．13mol，而当配方的化学式为Srx yBa1-yAl2 2xTi6-24O16时，其最大化学固溶量为0．22moLSr在碱硬锰矿固溶体中的最高固溶量还与合成方法有关，采用均相化学反应法合成的单相掺Sr碱硬锰矿固溶体中Sr的最高化学固溶量要高于固相反应法合成的固溶体中Sr的最高化学固溶量.     

301.15K时KCl-NH4Cl-H2O三元水盐体系相平衡的研究

采用等温溶解平衡法研究301.15K时KCl-NH4Cl-H2O三元水盐体系,测定了两相中各种离子的组成,通过实验数据绘制了此三元水盐体系相图,结果表明该体系主要存在六个区域:纯NH4Cl结晶区、纯KCl结晶区、以NH4Cl为主体的固溶体结晶区、以KCl为主体的固溶体结晶区、以NH4Cl为主体的固溶体和KCl为主体的固溶体的共同结晶区、不饱和溶液区.     

金属强度及耐热性关于K状态的理論

根据最近对固溶体强度研究的结果认为:合金元素原子在固溶体中并不是均匀地无序的分布着,而是经常形成有近程序的集团。例如Rudman等曾证明在许多合金中(如Ni-Au)都存在原子之集聚。在以镍铬合金为代表的一系列固溶体中K状态之存在很可能也反映了以上这种规律。很早就发现(Thomas)在许多合金中(如Ni-Cr,Ni-Al,Ni-Cu,Fe-Al,Fe-Si等)电阻的变化十分反常:冷加工导致他们的电阻率减少而随后的回火重新使电阻率上升。金相及x光分析证明这种状态是单相的,因此这种状态(一般称为K状态)一定是相应于原子分布的不均匀性。之后等利用电阻、热膨胀、硬度及组织分析详细的研究了这一现象的动力学过程,他认为建立K状态相当于一种“无析出的时效”,其结果就破坏了固溶体之均匀性而在固溶体晶格     

Co—W—C固溶体比矫顽磁力

模拟硬质合金Ｃｏ基胶结相的成分制备了二元Ｃｏ－Ｗ、Ｃｏ－Ｃ固溶体的三元Ｃｏ－Ｗ－Ｃ固溶体模拟合金，探讨了固溶成分影响比矫顽磁力ＨＳＣ的规律。结果表明，Ｗ和Ｃ的固溶可分别提高和降低其ＨＳＣ，影响程度随固溶度增加而加剧。由于Ｃ对ＨＳＣ的影响较Ｗ更为强烈，导致Ｃｏ－Ｗ－Ｃ固溶体模拟合金的ＨＳＣ低于纯Ｃｏ。     

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.