红庙矿综放面防灭火合理注氮参数

针对红庙矿五区5-2S综放工作面采空区防灭火合理注氮参数确定的问题,采用现场实测、实验室实验以及计算机模拟相结合的方法,数值模拟研究了不同注氮量、不同注氮位置、不同注氮时间对综放面采空区自燃"三带"分布的影响规律.结果表明:随注氮量的增加,采空区自燃氧化带的最大宽度逐渐减小,红庙矿五区5-2S综放工作面合理的注氮量应该为660～800 m3/h;合理的注氮位置为距工作面运顺侧采空区后方10～30 m;每天的累计注氮时间不超过15 h.红庙矿五区5-2S综放工作面在实际生产过程中采用了上述注氮参数,取得了很好的防灭火效果,有效地预防了采空区自燃的发生,保障了工作面的安全生产.本研究对煤矿防灭火具有一定的指导意义.     

易燃中厚煤层孤岛缩放面综合防灭火技术的研究与实践

对东滩煤矿首次开采的4303孤岛综放工作面，巷道掘进及回采期间如何采取综合防灭火技术，以保证该工作面安全、顺利、快速地回采作了探索和实践。结果表明：采取的综合防灭火技术是成功的。     

大倾角综放面停产期间综合防灭火技术应用

本文通过对许厂煤矿3311综放面停产期间煤层自燃原因的分析,结合实际采用了综合防灭火技术,取得了较好的效果,为综放面停采期间的防灭火工作提供了理论指导。     

深部矿井综放工作面压注二氧化碳防灭火应用研究

随着矿井开采深度逐渐增加,矿压和地温显著增高,为了防止深部矿井煤炭自然发火引发事故,根据姚桥煤矿7541综放工作面实际情况,提出了回采中压注CO2惰性气体防灭火措施。通过在7541综放工作面现场应用,防止了煤炭自然发火事故,保证了矿井的安全生产,为今后的防灭火工作提供了新的方法和经验。     

浅谈综放工作面防火措施

随着社会的发展,煤矿综放灭火越来越受到重视,因为综放工作面的灭火工作不仅关系着煤矿的安全生产,更重要的是关系着煤矿职工的生命安全,因此做好煤矿综放工作面的灭火工作是十分重要的。然而煤矿综放工作面因煤层较厚并且容易自燃发火,因此煤矿的防灭火工作进行的不是很顺利,并由此引发严重的火灾,不仅给煤矿造成重大的经济损失,而且还直接威胁职工的生命安全。本文首先介绍综放煤的特点,重点阐述综放煤的灭火措施。做好煤矿的灭火工作,对煤矿的安全、健康、和谐发展有着重要的意义。     

大倾角复杂地质构造综放工作面防灭火技术的研究与应用

针对靖远煤业集团公司红会四矿4708综放工作面走向、倾斜大倾角;断层、探巷交错等复杂地质构造,工作面推采速度极其缓慢的情况下,浅析防灭火技术的研究与应用,为其它综放工作面的防灭火提供了宝贵经验。     

浅谈三相泡沫技术在的综放面的应用

介绍了矿井采用新型防灭火综合技术的必要性,分析了综放面采空区防治煤炭自燃的难点,阐述了三相泡沫综合防灭火技术的特点及工艺流程和主要技术参数,介绍了三相泡沫在873综放面实际应用情况,分析了其良好的应用效果。现场应用表明三相泡沫防灭火技术性能优越,适用于综放工作面初采、收作及推进速度缓慢等特殊条件下的防治自然发火。     

综放工作面撤架期间综合防灭火技术研究

依据义马煤业集团千秋煤矿20061综放工作面的实际特点,分析了撤架期间的自然发火条件、原因及特点,介绍了均压、堵漏、打钻注浆等综合防灭火技术措施及其应用效果,并提出了相应的技术改进建议,对于保证易自燃煤层综放开采工作面撤架期间人员的安全和设备及时回收具有实践指导。     

特厚易燃煤层综合防灭火技术实践

本文以陈家沟煤矿综采工作面和综掘工作面防灭火技术管理实践为例,介绍了特厚易燃煤层开采时综合防灭火技术方法.     

综放工作面注氮工艺研究

综放工作面注氮是煤矿防灭火较关注问题之一，有关注氮规律、机理人们都从不同的角度进行着研究。本文根据平庄矿务局古山井的综放回采面，注氮防灭火成功经验及实测研究分析，论证注氮防灭火的机理，及相关参量的合理确定。     

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.