长英质麻粒岩流变性质的实验研究

在温度为６５０～９００℃、围压为１１００ΜΡａ和应变率为１０－４～１０－７ｓ－１的条件下，对大陆下地壳组成中的一类重要岩石——长英质麻粒岩进行了流变实验。稳态流动力学参数符合幂函数流动律ε＝Ａｅｘｐ（Ｑｃ／ＲＴ）Δσｎ，其中Ａ＝０．２７ＭＰａ－３ｓ－１，Ｑｃ＝２８８ｋＪ／ｍｏｌ，ｎ＝３．０。该文将其外推到大陆下地壳变形环境下，讨论了下地壳的强度特征     

聚丁二烯能量驰豫过程的分维时间模型

根据聚丁二烯的在其玻璃化转变Ｔｇ≈１７８Ｋ附近的比热，研究其在驰豫过程中释放能量△Ｑ随其物理老化时间Ｔｗ的关系，发现△Ｑ（Ｔｗ）满足Ｋｏｈｌｒａｕｓｃ－Ｗｉｌｌｉａｍｓ－Ｗａｔｔｓ关系：△Ｑ＝Ｑ０（１－ｅｘｐ［－（ｔｗ／τ）＾β，其中Ｑ０＝２．３１Ｊ．＾－１；τ＝９３ｍｉｎ；β＝０．６０。同时结合聚丁二烯的微观结构用分维时间模型解释了实验结果。     

城市规模分布的三参数Zipf模型：Davis二倍数规律的 …

将关于城市等级－规模分布的Ｄａｖｉｓ二倍数规律推广为任意倍数规律：αｉ＝αｉ＋ｎ．２＾ｎｆｉ＝ｆｉ＋ｎ．δ＾－ｎ，然后从中导出具有一般意义的三参数Ｚｉｐｆ模型：Ｐ（ｒ）＝Ｃ（ｒ－α）＾－ｄｚ，揭示了参数ｄｚ的分维性质并给出了它与分维Ｄ以及邻级倍数δ的数值关系：ｄｚ＝１／Ｄ＝ｌｎ２／ｌｎδ，从而证明Ｄａｖｉｓ的２＾ｎ规律乃是δ＝２即display status     

DApBM—V（Ⅴ）—Mn（Ⅱ）—Twenn—80体系光度法测定钒（Ⅴ）

在磷酸介质中，在Ｍｎ和Ｔｗｅｅｎ－８０存在下，ＤＡｐＢＭ与钒生成橙黄色化合物，产物至少可稳定３．５ｈ，最大吸收波长为４８５ｎｍ。摩尔吸光系数ε＝４．０１×１０＾５Ｌ．ｍｏｌ＾－１．ｃｍ＾－１和ε＝１．５７×１０＾４Ｌ．ｍｏｌ＾－１．ｃｍ＾－１，钒量在０．５－３．０μｇ／２５ｍｌ及３．０－１０．０μ／２５ｍｌ间符合比尔定律。     

锇—钼酸盐—碱性染料显色反应的研究

在聚乙烯醇存在下，锇与钼酸铵和碱性染料罗丹明Ｂ，丁基罗丹明Ｂ，耐尔蓝形成离子缔合物，不同碱性染料所形成的缔合物服从比耳定律的浓度范围和摩尔吸光系分别是：０－１．２μｇ／２５ｍｌ和ε５７０ｎｍ＝２．６２×１０＾６Ｌ．ｍｏｌ＾－１ｃｍ＾－１；０－１．０μｇ／２５ｍｌ和ε５７０ｎｍ＝２．８６×１０＾６Ｌ．ｃｍ＾－１；０－１．８μｇ／２５ｍｌ和ε５８５ｎｍ＝２．８１×１０＾６Ｌ．ｃｍ＾－１；０－１．８μｇ     

氟哌酸伏安行为的研究

在０．０５ｍｏｌ·Ｌ－１ＮＨ４Ｃｌ溶液中，富集电位－１．１０Ｖ（Ａｇ／ＡｇＣｌ）、富集时间１２０ｓ、扫速１２０ｍＶ·ｓ－１时，氟哌酸出现一吸附伏安还原峰，峰电位为－１．４８Ｖ．用线性扫描与循环伏安法、交流极谱和恒电位库仑法等手段研究体系的伏安行为及电极反应机理．测得扩散系数Ｄ＝９．３８×１０－７ｃｍ２·ｓ－１，电极反应电子数ｎ＝２，电子转移因数α＝０．５１，参与电极反应Ｈ＋数ｘ＇＝１．体系吸附符合Ｆｒｕｍｋｉｎ吸附等温式，吸附因数β＝３．２×１０５，吸引因数α＝１．２，吸附自由能ΔＧ°＝－３１．４ＫＪ·ｍｏｌ－１，实验表明，体系属不可逆吸附波．     

喹乙醇的电化学行为研究

研究了喹乙醇在醋酸盐和磷酸盐两种缓冲溶液中的电化学行为。在ｐＨ＝７．０的磷酸盐缓冲溶液中，使用单扫示波极谱获得了灵敏的吸附波。其导数波的波高ｈｐ２与ｃｏｌａ在４×１０－８～２×１０－５ｍｏｌ／Ｌ范围内成正比关系，检测下限为１×１０－８ｍｏｌ／Ｌ。在汞电极表面，喹乙醇的吸附遵从Ｆｒｕｍｋｉｎ吸附等温式。测定出吸附系数β＝９．１×１０４，吸引因素ν＝０．８。在ｐＨ＝４．５的醋酸盐缓冲溶液中，可以获得３个吸附波。分别测定出了３个波的表面电极反应速率常数ｋｓ１＝２．１ｓ－１，ｋｓ２＝２．２ｓ－１，ｋｓ３＝１．８×１０３ｓ－１。分别讨论了两种缓冲溶液中的电极反应机理。     

SrxBa1—xTiO3陶瓷的频域介电谱

用固相反应法制备ＳｒｘＢａ１－ｘＴｉＯ３系列陶瓷．当ｘ＝０．３０时呈现显著的驰豫相变特征．在５Ｈｚ至１ＭＨｚ范围,相对介电常数的实部ε′随频率ｆ的降低而增大．１／ε′与ｌｇｆ的关系曲线呈现折曲的２段直线．高频相对介电常数的实部ε′ｈ随ｘ的增加而增大是与顺电相的增加而对应．测量点（ε′,ε″）随频率ｆ的变化分布在复平面的一条直线上．     

从一道力学题的错解谈起

从一道力学题的错解谈起李琪华有这样一道题：速度为１０ｍ／ｓ的汽车在水平路面上前进，发现前方有障碍物后开始刹车，并以ａ＝－０．２ｍ／ｓ２作减速运动。问在刹车后１分钟内汽车前进了多少路程？［错解］：已知Ｖ０＝１０ｍ／ｓａ＝－０．２ｍ／ｓ２ｔ＝１分钟＝６０...     

PZN基陶瓷超低频介电弛豫的研究

采用线变零起始电压法，对Ｐｂ（Ｚｎ１／３Ｎｂ２／３）Ｏ３基陶瓷样品在－１５０～１６０℃温度范围内的超慢介电弛豫进行了详细测试；并结合普适型弛豫函数进行了实验数据的有效拟合，实现了介电常数从时域向频域的傅利叶转换，从而得到该样品的超低频（１０－５～１０－１Ｈｚ）介电频谱、温谱．观察到该样品的超低频介电温谱在居里温度点１１０℃附近存在扩散相变温区，并且在相变温区以下表现出明显的弛豫弥散现象、用热刺激电流（ＴＳＣ）得到样品的弛豫激活能Ｅ和本征驰豫时间τ０，并对其弛豫极化机制进行了讨论．     

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.     

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.     

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.     

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.