MTPP—CeOx—SiO2催化NOx还原

在密闭循环反应器中，于２９０℃下研究了ＣＯ存在下催化剂ＭＴＰＰ－ＣｅＯｘ－ＳｉＯ２（Ｍ＝Ｃｏ＾２＋，Ｎｉ＾２＋，Ｃｕ＾２＋）催化还原ＮＯ或Ｎ２Ｏ的反应。催化ＮＯ还原的活性顺序是ＮｉＴＰＰ＞ＣｏＴＴＰ＞ＣｕＴＰＰ，而Ｎ２Ｏ还原和ＮＯ深度还原为Ｎ２的顺序是ＮｉＴＰＰ＞ＣｕＴＰＰ＞ＣｏＴＰＰ．ＮＯｘ还原的催化特性和ＭＴＰＰ的电化学氧化机理有关（取决于中心金属或卟啉环被氧化的次序）。ＣＯ不仅还原ＮＯｘ而且     

SO2和NO在脉冲电晕放电中氧化及影响因素研究

采用ＳＯ２和ＮＯ与空气的混合物作为模拟烟气，研究了ＳＯ２和ＮＯ在正，负脉冲电晕放电中的催化氧化及模拟烟气湿度对氧化的影响，结果发现，正脉冲电晕放电对ＳＯ２和ＮＯ的氧化很有效，远优于负脉冲电晕放电；湿度对ＳＯ２的氧化有较大的影响，但滑有观察到湿度增大和添加加氨水对ＮＯ的氧化有明显的影响；温度对ＳＯ２和ＮＯ的氧化都有较大的影响。     

SO_2和NO在脉冲电晕放电中氧化及影响因素研究

采用ＳＯ２和ＮＯ与空气的混合物作为模拟烟气，研究了ＳＯ２和ＮＯ在正、负脉冲电晕放电中的催化氧化及模拟烟气湿度对氧化的影响。结果发现，正脉冲电晕放电对ＳＯ２和ＮＯ的氧化很有效，远优于负脉冲电晕放电；湿度对ＳＯ２的氧化有较大的影响，但没有观察到湿度增大和添加氨水对ＮＯ的氧化有明显的影响；温度对ＳＯ２和ＮＯ的氧化都有较大的影响。     

Pd（II）／BQ催化环己烯氧化合成环己酮的反应机理

在乙腈的酸性水溶液中，考察了Ｐｄ（ＯＡｃ）２、Ｐｄ（ＮＯ３）２、ＰｄＣｌ２和苯醌（ＢＱ）组成的催化体系在环己烯氧化合成环己酮反应中的催化活性，探索了酸度对Ｐｄ（ＯＡｃ）２／ＢＱ催化活性的影响。结果表明，Ｐｄ（ＯＡｃ）２／ＢＱ和Ｐｄ（ＮＯ３）２／ＢＱ对环己烯氧化合成环己酮显示了较高的催化活性，而ＰｄＣｌ２／ＢＱ的活性则较低，无水和无酸存在的溶液中，Ｐｄ（ＯＡｃ）２／ＢＱ对环己烯氧化未显现任何催化活性     

MTPP－CeO_x－SiO_2催化NO_x还原

在密闭循环反应器中，于２９０℃下研究了ＣＯ存在下催化剂ＭＴＰＰ－ＣｅＯ＿ｘ－ＳｉＯ＿２（Ｍ＝Ｃｏ￣（２＋）、Ｎｉ￣（２＋）、Ｃｕ￣（２＋））催化还原ＮＯ或Ｎ＿２Ｏ的反应。催化ＮＯ还原的活性顺序是ＮｉＴＰＰ＞ＣｏＴＰＰ＞ＣｕＴＰＰ，而Ｎ＿２Ｏ还原和ＮＯ深度还原为Ｎ＿２的顺序是ＮｉＴＰＰ＞ＣｕＴＰＰ＞ＣｏＴＰＰ。ＮＯ＿ｘ还原的催化特性和ＭＴＰＰ的电化学氧化机理有关（取决于中心金属或卟啉环被氧化的次序）。ＣＯ不仅还原ＮＯ＿ｘ而且还促进载体Ｃｅ＿２Ｏ＿３物种的形成。探讨了ＮＯ催化还原的机理。     

溴酸钾氧化孔雀绿催化光度法测定痕量NO_2~－

本文研究了在稀磷酸介质中，ＮＯ２－催化溴酸钾氧化孔雀绿褪色的指示反应，建立了催化光度法测定ＮＱ２－的新方法．ＮＯ２－量在０—４５０ｎｇ／２５ｍｌ范围内与ｌｎ（Ａ０／Ａ）成线性关系，用于水样和蔬菜中ＮＯ２－的测定取得满意结果．     

相转移催化合成O，O－二乙基－N－烃基硫代磷酰胺酯

相转移催化合成Ｏ，Ｏ－二乙基－Ｎ－烃基硫代磷酰胺酯张岳启，许和允，张景玉Ｏ，Ｏ－二乙基－Ｎ－烃基硫代磷酰胺酯类化合物（Ⅰ），具有较广泛的用途，可用作杀菌剂、杀虫剂和浮选剂￣［１～３］，但大量的还是用作合成新型杀虫剂的中间体￣［４］．这类化合物的传统制...     

二氧化氮的综合化学实验

本文介绍室温条件下,演示气体反应实验,ＮＯ氧化成ＮＯ２,ＮＯ２聚合成Ｎ２Ｏ４的反应装置设计,反应条件控制与操作过程,得出较好的结果     

二苯乙二酮缩双苯胺锰的合成及用于CO2催化转化研究

合成了二苯乙二酮缩双苯胺锰的配合物，研究了其对ＣＯ２的固定及催化ＣＯ２同有机底物反应。反应产物经ＩＲ，＾１Ｈ－＾１３Ｃ－ＮＭＲ、ＮＭＲ、元素分析等测定，结果表明：二苯乙二酮缩双苯胺锰是富电子配合物，可在温和条件下固定和催化转化ＣＯ２为有机酸。     

以双雌甾为模板的双核铜蛋白模型化合物的合成及催化苯偶姻的氧化

以２，４－双（Ｎ－咪唑甲基）－１７β－雌二醇与１，３－二溴丙烷通过醚化偶联，继与［Ｃｕ（ＣＨ３ＣＮ）４］ＣｌＯ４反应，合成了含双雌二醇、四咪唑基的新型双核铜蛋白模型化合物．研究了该模型物与相关模拟体系催化氧化苯偶姻的反应，发现双雌甾模型物与底物间的疏水相互作用有利于苯偶姻的氧化反应     

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。     

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.