聚（N—甲基）苯胺作为蓄电池阴极活性材料的电化学性能研究

聚（Ｎ－甲基）苯胺作为一种新的二次电池阴极材料在酸性溶液中有很高的稳定性,由聚（Ｎ－甲基）苯胺膜电极Ｚｎ片,１．０ｍｏｌ／Ｌ,ＺｎＣｌ２水溶液（ｐＨ＝２．０１）构成的电池,其开路电压的１．３１Ｖ,在恒电流放电速率为０．１５ｍＡ／ｃｍ＾２（放电电压为０．９Ｖ,聚合物重量为２．０ｍｇ／ｃｍ＾２）聚（Ｎ－甲基）苯胺的容量密度和能量密度分别为９７．５Ａｈ／ｋｇ,９４．６Ｗｈ／ｋｇ,在上述充放电电流密度下,     

以β-Co(OH)2为前驱体的锂离子电池正极材料LiCoO2

对ＬｉＣｏＯ２ 的结构与电化学性能进行了研究。采用控制结晶法合成出来的层状结构β－Ｃｏ（ＯＨ）２ 作为前驱体,和ＬｉＯＨ混和煅烧,制备出高活性的具有层状结构的锂离子电池正极材料ＬｉＣｏＯ２。试验中,通过差热 热重法分析了煅烧过程的反应机理; Ｘ 光衍射谱表明制得的ＬｉＣｏＯ２ 为α－ＮａＦｅＯ２ 层状结构的 ＨＴ－ＬｉＣｏＯ２; 扫描电镜照片显示β－Ｃｏ（ＯＨ）２ 是ＬｉＣｏＯ２ 优良的前驱体; 性能测试表明制得的ＬｉＣｏＯ２ 具有良好的电化学性能： 其首次充电容量为１５０．１ ｍ Ａｈ／ｇ, 放电容量为１４３．８ ｍ Ａｈ／ｇ, 充放电效率为９５．８％ 。     

微波—高分子网络法合成可充锂离子电池材料LiLaxN …

用微波－高分子合成掺杂ＬｉＬａｘＮｄ０．００６－ｘＭｎ１．９９４Ｏ４（ｘ＝０．００６,０．００４,０．００２,０）。ＸＲＤ图显示用此法可制得晶型很好的样品。充放电测试说明ＬｉＭｎ２Ｏ４的特征容量为１２０ｍＡ／ｇ,循环２０次后容量衰减率为４．７％。     

非循环Zn－Br电池的性能参数及分析

本电池为水平放置，溴极位于电池底部，锌极与之平行位于上部。以１．５Ａ／ｄｍ２或５．２Ａ电流充电１２小时并以同样电流放电至零伏，电池的库仑效率、能量效率、容量及比能量分别为８２％、５６％、７２Ｗ·ｈ。４２Ｗ·ｈ／ｋｇ或５４Ｗ·ｈ／Ｌ．     

2-(H酸偶氮)-4,5-二硝基酚光度法测定铝的研究和应用

研究了新试剂２－（Ｈ－酸偶氮）－４,５－二硝基酚（ＨＡＤＮＰ）与铝的显色反应,在ＰＨ５．３的六次甲基四胺－盐酸缓冲介质中,ＨＡＤＮＰ与Ａｌ＾３＋生成３比１的紫色络合物,λｍａｘ＝５７０ｎｍ,ε＝３．２９＊１０＾４Ｌ．ｍｏｌ＾－１．ｃｍ＾－１,Ａｌ质量浓度在０－４８０μｇ．Ｌ＾－１内符合比尔定律,方法用于水样测定,结果满意。     

钌(Ⅲ)-钼酸盐-乙基罗丹明B-PVA体系缔合显色反应研究

在聚乙烯醇存在下,钌与钼酸盐和乙基罗丹明Ｂ（ＥＲＢ）形成有色离子缔合物。最佳反应条件为「ＨＣｌＯ４」＝１．２ｍｏｌ．Ｌ＾－１,「ＭｏＯ＾２－４」＝６．８＊１０＾－４ｍｏｌ．Ｌ＾－１,「ＥＲＢ」＝３．２＊１０＾－５ｍｏｌ．Ｌ＾－１,ｗ（ＰＶＡ）＝０．０８％。缔合物的最大吸收位于５７５ｎｍ,表观摩尔吸光系数ε＝２．３２＊１０＾６Ｌ．ｍｏｌ＾－１．ｃｍ＾－１,钌量在０－２４μｇ．Ｌ＾－１范围内服从比耳定     

计算加权Moore—Penrose逆AM^＋,N的一个改进的并 …

利用ＰＲＥＰＡＲＴＡＦＴ和ＳＡＲＷＡＴＥ Ｄ Ｖ＾〔６〕的一些结果,给出一个计算回权Ｍｏｏｒｅ－Ｐｅｎｒｏｓｅ逆ＡＮＭ＾＋的改进的并行算法,改善了文献〔８〕中提出的算法。在与ＰＲＥＰＡＲＴＡＦ Ｐ和ＳＡＲＷＡＴＥＤＶ文〔６〕中相同的假设下证明了改进的并行算法的时间复杂性和处理机台数分别为Ｔ＾－＝０（ｌｏｇｎ）＾２）,Ｐ＝ｍａｘ｛「ｍ／ｎ」＾２ｎ＾α／ｌｏｇｎ,２ｒ＾１／２ｎα／（ｌｏｇｒｌｏｇｎ）     

密封铅酸蓄电池的研究

阐述了密封铅酸蓄电池中板栅合金，极板制和加酸量控制方法。试验电池重量的体积能量密度分别为３５－３７Ｗｈ／ｋｇ和９３－９９Ｗｈ／ｄｍ＾３。放电率从０．０５～２Ｃ范围内的Ｐｅｕｋｅｒｔ直线斜率为１．１２。用电阻１．５Ω短接电池２１天后可用正常充电方法恢复至初始容量８６％。贮存６个月后的电池容量仅损失１７％。在５０％ＤＯＤ情况下，电池循环寿命大于５００次。     

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     

溶胶组成对钡铁氧体生成过程的影响

应用溶胶－凝胶技术制德纳米钡铁氧体,研究溶胶组成对钡铁氧体生成过程的影响。由定量的Ｆｅ（ＯＨ）３、ＢａＣＯ３适量的柠檬酸和乙二醇络合剂组成的溶胶,使整个反应过程避免了ａ－Ｆｅ２Ｏ３相的产生,在９００℃就得到了纯净第一,粒度为１０１ｎｍ,比饱和磁化强度为６９．８Ａｍ＾２·ｋｇ＾－１,矫顽力为４７３．７ｋＡ·ｍ＾－１的钡铁氧体超微粒子。     

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.     

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。     

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.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…