硼铁矿磁选分离综合利用新工艺

在实验室条件下，进行了硼铁矿便利的工艺研究，硼铁矿经磁选分离获得含Ｂ２Ｏ３〉１３％的硼精矿和含ＴＦｅ－５５％的含硼铁精矿，硼精矿经活化焙烧，Ｂ２Ｏ３活性大于９０％；可直接用碳碱法生产硼砂，含硼铁精矿可作为烧结球团含硼添加剂使用，或经直接还原熔化分离进行硼铁分离，获得钢铁材料及可直接用于硼砂生产的富硼渣，工艺实现了硼铁矿的综合利用。     

富硼渣硫酸浸出试验研究

以富硼渣为原料，在１．５ｍ＾３浸出罐中进行硫酸浸出试验，硼的浸出率主要与富硼渣的结构，粒度，加酸量及浸出时间和温度等因素有关，试验结果表明，富硼渣中硼只要以遂安石晶体存在，粒度在０．１８～０．１６ｍｍ加酸量为８０％，浸出时间９０ｍｉｎ温度９５～１００℃硫酸浸出率可大于９０％。     

含铀硼精矿碳解过程中铀硼分离

含铀硼精矿在ＣＯ中还原焙烧得到熟矿粉，硼的活性为９０．８３％，用通ＣＯ２的碳酸钠水溶液碳解，Ｂ２Ｏ３溶出率在８６％以上，铀溶出率４．８８％，碳酸体系中加适量ＦｅＳ，铀溶出率降至０．６２％以下，较好地实现了铀硼分离。     

富硼渣碳碱法制取硼砂

以硼铁矿１３ｍ＾３高炉分离得到的现场活性富硼渣为原料，采用碳碱法工艺制取酮砂，实验在ＦＹＸ－０５Ａ型高压釜中进行，通过对反应时间，总压力，液固化，碱量等四方面因素进行正交设计实验，得到１３５℃，纯ＣＯ２条件下富硼渣碳碱法制硼砂实验的最优工艺参数，碳解反应时间１２ｈ碳解罐总压力０．８ＭＰａ液固比２．５，碱量为理论量的１１０％，碳解率大于７５％，实验数据经级差分析表明，碳解反应时间和碳解罐总压力是影响     

富硼渣盐酸法制取硼酸和氢氧化镁

采用富硼渣盐酸法来处理富硼渣,通过单因素试验和正交试验确定富硼渣盐酸浸出的最佳试验条件.针对盐酸浸出液,开发了制备硼酸联产氢氧化镁和硫酸钙工艺.研究结果表明:浸出温度为95℃,盐酸用量为理论用量的95％,浸出时间为40 min,浸出液固比为1:1时,B浸出率为94.60％,Mg浸出率达到90.56％.制得的硼酸纯度为99.55％,氢氧化镁的纯度达到80％以上,副产品硫酸钙纯度达到98.81％.     

硼铁矿在高炉冶炼过程中炉渣的挥发

以ＭｇＯ－ＳｉＯ２－Ｂ２Ｏ３三元系代替富硼渣为研究对象，研究了在不同气氛，温度，时间下的挥发，结果表明，该三元系在高温下的挥发与气氛有很大的关系，在还原气氛下，随温度的升高，时间的延长，挥发量明显增加，氧化气氛下挥发量较小。     

富硼渣粘度及熔化性温度的研究

用化学试剂氧化物配制合成富硼渣，利用ＺＣ－１６００型高温综合测试仪，用内柱体旋转法测定其熔体粘度及熔化性温度。实验过程中，对氧化物原料采取细磨、混匀、快速熔制、搅拌成均相渣、钼片衬里坩埚等措施，有效防止碳化物生成。研究了Ｂ２Ｏ３，ＭｇＯ，ＳｉＯ２，ＣａＦ２含量对熔渣的粘度及熔化性温度的影响。Ｂ２Ｏ３，ＣａＦ２在熔渣中起到助熔剂及降低熔体粘度的作用。     

B2O3—MgO—SiO2系富硼渣活性的混料回归模型

研究了B2O3－MgO-SiO2系富硼渣的活性与组成和结构的关系。在限定10％≤B2O3≤30%，10%≤SiO2≤30%，MgO≤60%范围内，MgO的含量和熔体固化过程玻璃体的形成是影响富硼渣活性的关键因素。     

含B2O3高MgO炉渣组成对熔渣体积质量及表面张力的影响

用化学试剂氧化物配制合成宫硼渣，在ＺＣ－１６００型综合测试仪上，用双柱联称法同时测定富硼渣熔体体积质量及表面张力．体积质量在２．５±０．５ｇ·ｃｍ－３范围，表面张力在０．４～０．６Ｎ·ｍ－１范围内变化．二者均随渣中ＭｇＯ量的增加，或随ＳｉＯ２量的减少而增大，随温度的提高而减小．     

物理选矿方法降低富硼渣中铀含量的可行性

研究了铀在硼铁矿原矿及富硼渣中的赋存状态，并利用物理选矿方法进行了硼铁矿原矿、硼铁矿矿产品及富硼渣降铀试验，以最终解决富硼渣中铀含量高的难题。研究结果否定了这种可能性。     

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.     

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.     

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.