镁质矽卡岩型铁矿尾矿免烧砖

对镁质矽卡岩型铁矿尾矿成分、组成、性质等做了分析,并对尾矿免烧砖工艺中几个影响因素进行了探讨,出了适宜的比例,使免烧砖的性能指标满足国家要求,为类似矿山利用尾矿提供了理论依据和实践经验.     

石墨尾矿资源化利用现状

本文简要介绍了石墨的用途与资源概况,石墨尾矿的产生及对社会环境的影响;综述了目前国内石墨尾矿在提取有价金属、制白炭黑、生产免烧砖、制备承重烧结砖、烧结多孔砖、环保陶瓷生态砖、用作高速公路底层等方面的利用,并对石墨尾矿其他应用前景进行展望。     

免烧砖承重墙体裂缝鉴定及加固补强

某综合服务楼为免烧砖承重墙体和钢筋混凝土现浇楼盖组成的混合结构，在使用过程中免烧砖墙体出现了裂缝。现场调查了墙体裂缝分布状况，分析了裂缝产生的原因，依据相关标准对墙体现有裂缝的安全性和使用性进行了评价，在可靠性鉴定的基础上提出了加固补强建议。     

对碱矿渣水泥-赤泥-粉煤灰免烧砖的研究

主要对利用碱矿渣水泥、赤泥和粉煤灰等材料制造免烧砖的技术进行了研究,使用了不同的激发剂 Ａ 和 Ｂ,并确定了各组分材料的最佳配比。在最佳配比条件下,制造的免烧砖的性能等级可达２０ 号以上。     

凡口铅锌矿尾矿的综合利用

通过对凡口铅锌矿尾矿的综合利用现状调查与分析，结合我国当今尾矿回收利用的新技术，提出了一种适合凡口铅锌矿尾矿综合利用的新方法，通过对尾矿中有价金属的再选、对 0．019mm的尾矿进行采空区的充填、将-0.019mm的尾矿用于制地面砖和水泥熟料，最后采用堆土复垦方法处理，最终可达到无尾矿矿山的目标。     

垃圾焚烧炉渣级配对垃圾焚烧炉渣基免烧砖性能的影响

炉渣基免烧砖是以水泥、炉渣为主要原料，混合加入掺合料、外加剂等，通过加水搅拌、成型、养护等一系列工艺所生产制造的新型环保节能砖。本文工作目的是为了优化炉渣和水泥的匹配关系，提高炉渣基免烧砖的强度性能，加大MSWI（Municipal solid waste incineration）炉渣的应用范围。试验研究表明：测试炉渣的理化性质，即炉渣化学性质稳定；取粒度在0.83～0.17 mm的炉渣，按10%比例增加指数等质量替代水泥和砂进行试验，并将其与基准配合比进行对比；当炉渣颗粒粒度在0.15～2.5 mm时，免烧砖的抗压强度随着粒径的增大而提高，且粒度在0.83～1.7 mm抗压强度性能最优；各因素对抗压强度的影响程度为：炉渣粒度＞炉渣掺杂量＞水灰比，炉渣掺量代替砂比例等于40%，相应的水灰比等于0.46。试验为垃圾焚烧炉渣制备免烧砖提供初步分析，具有炉渣资源化利用价值。     

谈谈免烧砖的可靠性

免烧砖又称非烧结砖,是以粘土为主要原料,掺入少量胶凝材料(石灰、水泥及适量外加剂)等组份,经粉碎搅拌、半干高压成型,自然或人工养护而成的不用烧结的墙体材料。在国外,首先由丹麦技术大学托马斯·伦舍特和托本·汉森教授于六十年代末研制成石灰红壤型免烧砖,以后在瑞士、美洲等地区推广。在我国,免烧砖是近几年才发展起来的一种新型建筑材料。目前,对免烧砖许多     

不同粒级与结构铁尾矿渗透破坏模式判别方法

渗透破坏是引起尾矿坝事故的重要原因。渗透破坏模式不同，影响也不尽相同。有必要对其判别方法进行研究，进而有效预判可能发生的尾矿坝渗透破坏形式，从而更为有效的保护尾矿坝下游人员的生命与财产安全。通过开展铁尾矿的渗透破坏试验，电镜扫描观测，显微镜观测，对细颗粒含量与结构影响下的铁尾矿渗透破坏模式进行了分析。研究表明：1）应用现行的一些渗透破坏模式判别方法对铁尾矿渗透破坏模式进行判别时，其准确性降低。2）以达西定律为基础，提出采用渗透系数对平均孔隙直径进行计算的方法，这种方法可以有效计算均匀尾矿的平均孔隙直径，沉积尾矿粗、细粒层的平均孔隙直径。为后续尾矿渗透破坏模式的判别提供有力依据。3）提出了适用于铁尾矿的渗透破坏模式判别方法。对不同粒级与结构铁尾矿的渗透破坏模式判别准确性较高。开展砂槽试验，在较大尺度范围上对提出的铁尾矿渗透破坏模式判别方法进行了验证，结果较为准确。研究成果对维持尾矿坝安全运行具有一定指导意义。     

水泥免烧砖强度形成和发展机理浅探

根据宏观试验和差热 z 射线衍射岩相等的分析,探讨了水泥免烧砖强度形成和发展的机理,并提出提高水泥免烧砖强度的主要措施.     

用石棉尾矿为主要原料制备微晶玻璃

本文介绍了用石棉尾矿为主要原料制备微晶玻璃的方法，并对其主要的性能进行了测试。本法尾矿处理量大，产品性能优越，是石棉尾矿开发利用、改善环境的一条有效新途径     

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.     

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.     

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.     

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.     

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.     

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.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-