如何加强煤矿机电设备管理 减少机电事故发生

机电设备对煤矿企业的安全生产尤为重要,当前机电事故已经成为煤矿生产企业的重要安全隐患,已经引起社会的高度重视。在强调安全生产的背景下,企业如何加强煤矿机电设备管理,减少机电事故发生是煤矿企业当前发展的重要前提。笔者深挖煤矿企业机电事故频发的原因,并结合煤矿企业发展的实际情况提出相应的意见,希望对煤矿企业加强煤矿机电设备管理,强化安全生产有所帮助。     

强化安全生产意识加强顶板管理搞好煤矿安全生产

本文结合永春煤矿南一井的实际,通过对煤矿顶板压力的产生,顶板事故发生的原因分析,提出了防范措施,加强安全生产教育,强化安全生产意识,分析、研究、认识、掌握、运用矿山压力的规律,认真安全检查、验收,加强现场顶板管理,积极组织安全技术培训,提高职工队伍素质,实现了煤矿安全生产.     

煤矿机电运输事故存在的问题与预防措施

近年来在我国迅速提高煤矿机械化水平,煤矿运输设备大量引入,这给煤矿生产带来效益的同时,也带来了煤矿机电事故的频率越来越高。随着矿山生产的一个重要方面,煤矿机电运输生产的每一个方面,不能忽视安全生产,本文主要分析了我国近几年来煤矿机电事故的存在的问题、原因及在煤矿各类事故中所占比例,提出如何加强煤矿机电事故的预防措施,具有一定借鉴意义。     

基于博弈论的煤矿安全管理

针对煤矿安全管理问题,文章采用博弈论的方法,建立了政府安全生产监管部门和煤矿企业之间的安全管理博弈模型.通过分析模型,重点从政府监管角度找出煤矿安全事故多发的原因,并提出了促进煤矿安全管理的政策建议.     

煤矿机电事故的预防措施研究

煤矿机电事故高发是制约煤矿安全生产的一个重要原因。因此为了提高煤矿生产质量,加强对煤矿机电事故预防措施的研究是十分必要的。在煤矿机电生产中,要关注煤矿工人的职前培训,保障机电设备的安全性能,落实煤矿企业的安全管理,从根源上预防煤矿机电事故的发生。     

创新成就平安广西

广西壮族自治区党委、政府高度重视安全生产工作,创新推进小煤矿＂三化＂建设,创新推进＂安全生产防御战＂,创新制定＂五级隐患＂挂牌督办整治制度,进一步夯实安全生产基层基础,有效遏制了重特大事故和减少了一般事故的发生。     

煤矿生产安全管理分析

为了改变煤矿企业事故频发的现状,减少煤矿事故带来的损失,改善煤矿企业安全管理工作,采用对比分析法,研究了我国和世界上其它国家安全生产情况的差异,总结了我国煤矿安全管理在监管力度、从业人员素质、管理体系和安全投入方面存在的主要问题,并提出实现煤矿安全生产的措施与建议,对煤矿的安全生产有一定的指导意义.     

浅谈井下采煤工作面顶板事故措施

随着社会经济的发展,煤矿企业也不断的提高,煤矿事故频繁发生,瓦斯,顶板突水事故,然而,采煤工作面顶板事故是煤矿企业面临的主要生产安全事故之一。回采工作面顶板。这种事故往往会造成更严重的人员伤亡和经济损失,对煤炭生产造成主要威胁,甚至造成不良的社会影响。因此,在煤炭开采过程中,我们必须加强工作面顶板管控,回采工作面顶板有效地减少事故的发生,使煤矿生产安全,经济,社会效益更加显著。本文对煤矿采煤工作面顶板事故的形成过程和顶板事故的原因作了分析,并提出了不同的防治措施和日常安全管理工作的重点。     

政府牵头部门配合全力攻坚我省煤矿瓦斯集中整治取得实效

报道我省认真按照国办发明电〔2005〕6号文件精神和国家安全生产监督管理总局要求,政府牵头,部门配合,全力攻坚,大力开展煤矿瓦斯集中整治工作,煤矿安全生产呈现出稳定好转的势头。今年1-10月,全省煤矿共发生安全生产事故起数、死亡人数与去年同比分别下降了32.6%和23%。其中特大事故起数、死亡人数下降了53%和32%;瓦斯事故起数、死亡人数下降了45%和25.3%,重点监控企业杜绝了瓦斯事故。一是领导重视,责任落实。《国务院办公厅关于进一步加强煤矿安全生产的紧急通知》下发后,省委、省政府领导高度重视,及时转发了国家有关文件精神,并进行了…     

浅谈煤矿顶板管理的措施与办法

煤矿的五大灾害中，最常见的是顶板事故。我县煤炭行业自2001年至2008年为止，共发生安全伤亡事故6起，死亡6人，其中顶板事故5起，死亡5人，占事故总数83％。鉴于如此多发的顶板事故，要确保煤矿生产安全，加强顶板管理是杜绝安全生产事故发生的关键。为此．为加强我县煤矿顶板管理工作，必须从多角度和深层次分析事故原因，探索如何采用行之有效的措施与办法对顶板管理实行专项整治。     

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.