35t／h煤粉锅炉改循环流化床锅炉的研究

介绍了某公司的一台３５ｔ／ｈ煤粉锅炉改循环流化床锅炉的设计与运行,结果表明,改造后的循环流化床锅炉不仅能达到４０ｔ／ｈ的额定蒸发量,而且操作性能稳定,煤种适应性广、负荷调节范围大,达到了节能降耗和降低生产成本的目的。     

SHL6.5t／h锅炉掺烧无烟煤及扩容技术改造

论述了ＳＨＬ６．５ｔ／ｈ锅炉改造后掺烧６０％－７０％无烟煤的方法，并使锅炉的产汽量增加到８ｔ／ｈ，改造中采用了人字拱，热管式换热器等我技术，取得了显著的经济效益。     

用稳燃腔煤粉燃烧器改燃烟煤为燃无烟煤锅炉

针对一台７５ｔ／ｈ锅炉，利用稳燃腔煤粉燃烧器，并实施其他相关改造，成功地将原设计一直燃用烟煤改燃无烟煤，并取得了改造后的锅炉燃用无烟煤６０％负荷下不抽油稳燃的良好效果。     

60t／h中试增压流化床锅炉蒸汽负荷调节特性

增压流化床锅炉主要有两种负荷调节方法：一是改变密相床高度，二是改变床温，本文以即将在徐州安装搬运的６０ｔ／ｈ增压流化床锅炉为对象，通过计算对上述两种调节手段进行了比较。结果表明，只改变床温，负荷的调节范围很有限（７９．３％～１００％）；而利用改变密相床高的方法，可在较大范围内（５５．５％～１００％）调节锅炉负荷，若同时调节床高和床温则可获得更大的负荷调节范围，且过热器出口的蒸汽温度变化幅度也很小。     

“75t／h热电站煤粉锅炉多变量微机控制系统”通过专家鉴定

“７５ｔ／ｈ热电站煤粉锅炉多变量微机控制系统”通过专家鉴定由我校自动化系与淮化集团有限公司合作完成的安徽省科委重点研究项目“７５ｔ／ｈ热电站煤粉锅炉多变量微机控制系统”于１９９６年１０月２８日通过专家鉴定。国内外目前电站煤粉锅炉主要采用仪表控制，少数...     

双通道浓淡煤粉燃烧器热工况的计算机模拟和试验

介绍了某台１３０ｔ／ｈ锅炉采用双通道浓淡煤粉燃烧器在热态下的数值计算和试验结果,理论和实践证明,双通道浓淡煤粉燃烧器是一种具有高效、低负荷稳燃、火焰可调、低ＮＯｘ排放性能的先进煤粉燃烧器。     

喷射鼓泡烟气脱硫（Ⅱ）

该文介绍了喷射鼓泡烟气脱硫在工业锅炉上应用的情况。喷射鼓泡烟气脱硫工艺石灰浆液配制系统、脱硫除尘反应系统和产物处理系统等组成。喷射鼓泡反应器（ＪＢＲ）集脱硫除尘于一体，具有气体压降小、液气比高，能达到９０％以脱硫率和９５％以上的除法率等特点。ＪＢＲ硫的设备投资与运行费用低，１ｔ／ｈ锅炉的设备投资约为１．２５万元，去除１ｔＳＯ２的费用约１２５元。ＪＢＲ脱硫系统操作容易而稳定，没有结垢问题，表现出推广     

苏北海堤主要防护林类型防蚀功能研究

研究苏北海堤主要防护林防蚀能力得出：柳杉林土壤侵蚀量〈水杉林〈刺槐林〈无林区，年土壤侵蚀模数分别为９２２．２８８８ｔ／ｋｍ＾２．ａ、１２３１．１８２２ｔ／ｋｍ＾２．ａ和２６０８．４５３８ｔ／ｋｍ＾ｈ２．ａ无林区属于土壤侵蚀量占全年土壤侵量的８０．５％，有林地占９０％左右，表明雨量较大，尤其是大暴雨和特大暴雨往往引起的较为土壤侵量的８０．５％，有林地占９０％左右，表明雨量较大，尤其是大暴雨和犊在暴大     

喷射鼓泡烟气脱硫(Ⅱ)——在工业锅炉上的应用

该文介绍了喷射鼓泡烟气脱硫在工业锅炉上应用的情况。喷射鼓泡烟气脱硫工艺由石灰浆液配制系统、脱硫除尘反应系统和产物处理系统等组成。喷射鼓泡反应器（ＪＢＲ）集脱硫除尘于一体，具有气体压降小、液气比高，能达到９０％以上的脱硫率和９５％以上的除尘率等特点。ＪＢＲ脱硫系统的设备投资与运行费用低，１ｔ／ｈ锅炉的设备投资约为１．２５万元，去除１ｔＳＯ２的费用约１２５元。ＪＢＲ脱硫系统操作容易而稳定，没有结垢问题，表现出推广应用的潜力。     

300MW机组贫煤锅炉燃烧特性试验研究

在３００ＭＷ１０２４ｔ／ｈ锅炉上进行变煤种，变负荷，变风量试验，研究煤种及运行工况对ＮＯｘ排放特性及飞灰含碳量的影响，研究发现煤中含氮量与ＮＯｘ排放量具有一定相关性，入炉总风量与ＮＯｘ排放量存在线性关系，运行工况变化对飞灰含碳量也有一定影响。     

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.