CoFe－γ－Fe_2O_3磁粉Hc增大机理的研究

本文从实验与理论上探讨了ＣｏＦｅ－γ－Ｆｅ＿２Ｏ＿３磁粉的矫顽力Ｈｃ增大的机理，其原因在于包钴包亚铁后，同内核γ－Ｆｅ＿２Ｏ＿３相比较，表面晶格结构发生变化，产生了较强的表面单轴各向异性所致。     

成分对CoCr薄膜磁畴影响的研究

对Cr含量为0-23 at％的不同成分系列的CoCr合金薄膜磁畴的研究表明,随着Cr成分增多时其磁各向异性和相关的磁畴结构都敏感地变化。当Cr含量少于17at％时,面内磁化强度为主,并有多种结构形式。超过Cr含量11.2 at％后,少量的垂直磁化强度点畴出现,并随Cr含量增多而增多。Cr含量在17-23 at％的范围内可获得垂直磁各向异性为主的CoCr膜,也可能得到用于高密度垂直磁记录的优良薄膜磁性能。显微照片显示了点畴的尺寸比膜表面的晶粒的或膜断面的晶柱的尺寸都大些。因此,可以得出结论,即其一个自发磁化强度点畴是由一束晶柱或长成的晶粒组成,并都处在单畴状态。     

在二甲亚砜溶剂中氯化钼氧卟啉和超氧自由基反应动力学研究Ⅱ反应网络

本文研究了Ｍｏ￣ⅤＯ（ＴＰＰ）Ｃｌ与Ｏ＿２的反应机理。结果表明，在１：１体积比ＣＨ＿２Ｃｌ＿２－ＤＭＳＯ溶剂中，在１８－ｃｒｏｗｎ－６存在下，配合物Ｍｏ￣ⅤＯ（ＴＰＰ）Ｃｌ被Ｏ￣－＿２还原的反应通过一系列中间物，最后生成Ｍｏ￣ⅣＯ（ＴＰＰ）（１８－ｃｒｏｗｎ－６），本文给出了详细的反应动力学网络。     

铁钴五核羰基簇碳化物的合成及其结构

本文以ＣＯ＿２（ＣＯ）＿８、Ｆｃ＿２（ＣＯ）＿９、ＰＰｈ＿３为原料，合成了铁钴五核羰基簇碳化物Ｃｏ＿３Ｆｃ＿２（μ－（μ－ｃｏ）（ｃｏ）＿（１０），并对其进行了ＩＲ、￣１ＨＮＭＲ、ＩＣＰ、元素分析、ＭＳ等表征，指认该化合物为八面体结构，Ｃｏ、Ｆｅ构成四方锥形骨架Ｃｏ＿３Ｆｅ＿２。     

高密度磁记录用Co—Sn替代钡铁氧体微粉的结构与磁性

对玻璃陶瓷法制备的ＢａＦｅ１２．２ｘ（Ｃｏ－Ｓｎ）ｘＯ１９的Ｃｏ－Ｓｎ替代钡铁氧体微粉的磁性作了介绍，研究了微粉粒子的晶化过程：微粉的磁性对粒子形态、结构及Ｃｏ－Ｓｎ替代量ｘ的依赖关系；微粉矫顽力与温度的依赖性；测量并讨论了粒子表面自旋对饱和磁化强度的影响。     

新型稀磁半导体Zn＿（1－x）Co＿xSe和Zn＿（1－x）Co＿xS的能谱

本文报道用晶体场理论对新型稀磁半导体Ｚｎ＿（１－ｘ）Ｃｏ＿ｘＳｅ和Ｚｎ＿（１－ｘ）Ｃｏ＿ｘＳ中Ｃｏ￣（２＋）离子不同能级间的跃迁进行计算的结果。与实验观测结果进行了比较，获得了相应的晶场参量Ｄ＿ｑ，Ｒａｃａｈ静电参量Ｂ，Ｃ和自旋－轨道耦合参数λ。本文对Ｚｎ＿（１－ｘ）Ｃｏ＿ｘＳｅ和Ｚｎ＿（１－ｘ）Ｃｏ＿ｘＳ分别指认了观测到的Ｃｏ￣（２＋）离子能级间的跃迁。对较低能级部分，实验结果与理论计算符合较好。     

草酰二胺桥联的双核钴（Ⅱ）、镍（Ⅱ）和铜（Ⅱ）配合物的合成与磁性

已合成四种新的草酰二胺桥联的双核钴（Ⅱ）、镍（Ⅱ）和铜（Ⅱ）配合物：Ｃｏ＿２（ｂｐｙ）＿２（ｏｘｄ）（ＣｌＯ＿４）＿２（１），ＣＯ＿２（Ｍｅ＿２－ｂｐｙ）＿２（ｏｘｄ）（ＣｌＯ＿４）＿２·Ｈ＿２Ｏ（２），Ｎｉ＿２（ｂｐｙ）＿２（ｏｘｄ）（ＣｌＯ＿４）＿２·Ｈ＿２Ｏ（３），Ｃｕ＿２（Ｍｅ）＿２－ｂＰｙ）＿２（ｏｘｄ）（ＮＯ＿３）＿２（４），ｂＰｙ表示２，２＇－联吡啶，Ｍｅ＿２－ｂｐｙ表示４，４＇－二甲基联吡啶，ｏｘｄ表示草酰二胺阴离子。经元素分析、ＩＲ、电子光谱、ＥＳＲ、磁化率及变温磁化率的测定，对上述各配合物进行了表征。配合物（１）和（３）的变温磁化率已测定，其数值用最小二乘法和从自旋哈密顿算符导出的磁方程拟合，求得交换积分Ｊ为－１．４８ｃｍ￣（－１）和－１．８２ｃｍ￣（－１），表明配合物中钴（Ⅱ）－钴（Ⅱ）离子及镍（Ⅱ）－镍（Ⅱ）离子之间仅有极弱的反铁磁自旋交换作用。     

［Fe（CN）_5H_2O］~（3－）还原［（NH_3）_5Co（OOCC_5

在μ＝０．１０ｍｏｌ·１￣（－１）（ＬｉＣｌＯ＿４）、ｐＨ＝８．０对不同温度下［Ｆｅ（ＣＮ）＿５Ｈ＿２Ｏ］和［（ＮＨ＿３）＿５Ｃｏ（ＯＯＣＣ＿５Ｈ＿４Ｎ）］￣（２＋）的内配位界电子转移反应进行了动力学研究。在２５℃，双核配合物［（ＮＨ＿３］＿５Ｃｏ（ＯＯＣＣ＿５Ｈ＿４Ｎ）Ｆｅ（ＣＮ）＿５］￣－的分子内电子转移速率常数为３．９×１０￣（－１），分子内电子转移过程的活化焓和活化熵分别为８９．５ｋＪ·ｍｏｌ￣（－１）和６．０Ｊ·ｍｏｌ￣（－１）·Ｋ￣（－１）最后对该反应的机理、速率常数和绝热性进行了讨论。     

CoFe—γ—Fe2O3磁粉Hc增大机理的研究

本文从实验与理论上探讨了ＣｏＦｅ－γ－Ｆｅ２Ｏ３磁粉的矫顽力Ｈｃ增大的机理，其原因在于包钴包亚铁后，同内核γ－Ｆｅ２Ｏ３相比较，表面晶格结构发生变化，产生了较强的表面单轴各向异性所致。     

Co（Ⅱ）、Ni（Ⅱ）、Zn（Ⅱ）与三聚硫氰酸的配合物及其衍生物的合成研究（Ⅰ）

本文用ＣｏＣｌ＿２·６Ｈ＿２Ｏ、ＮｉＣｌ＿２Ｈ＿２Ｏ、ＺｎＣｌ＿２·２Ｈ＿２Ｏ与Ｃ＿３Ｎ＿２Ｓ＿３Ｎａ＿３在（ＣＨ＿３）＿２ＳＯ溶剂中反应，得到产物Ⅰ、Ⅱ、Ⅲ；又用Ｃ＿５Ｈ＿５Ｎ与Ⅰ、Ⅱ、Ⅲ反应，得到产物Ⅳ、Ⅴ、Ⅵ。经元素分析、ＩＲ谱、ＵＶ谱表征研究，指认Ⅰ、Ⅱ、Ⅲ为Ｎａ＿３［Ｍ（ＣＨ＿３）＿２ＳＯ（Ｃ＿３Ｎ＿３Ｓ＿３）Ｃｌ＿２（Ｍ－Ｃｏ（Ⅱ）、Ｎｉ（Ⅱ）、Ｚｎ（Ⅱ）；ⅣⅤ、Ⅵ为Ｎａ＿２［Ｍ（ＣＨ＿３）＿２ＳＯ（Ｃ＿３Ｎ＿３Ｓ＿３）（Ｃ＿５Ｈ＿５Ｎ）Ｃｌ］（Ｍ－Ｃｏ（Ⅱ）、Ｎｉ（Ⅱ）、Ｚｎ（Ⅱ））。     

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。     

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.