HLZDB－3K型防跑车装置的应用浅析

通过对HLZDB-3K型防跑车装置的应用分析，阐述了其工作原理及在某矿井现场应用状况，并根据存在的问题提出了建议。     

杜儿坪矿副斜井挡车装置的改装与使用

针对杜儿坪矿副斜井斜坡防跑车装置存在的缺陷,对其进行了改装,即在原有的KHG7型防跑车保护装置的基础上再安装一套缓冲式挡车器,保证电动提升挡车栏在停止斜井运输工作时处于常闭状态。通过缓冲式挡车器和KHG7型斜井防跑车安全保护装置联合使用,在发生跑车事故时对野车进行二次拦截,减小副斜井跑车事故的破坏程度。     

浅谈摆杆式捞车器在倾斜运输巷道中的安全应用

捞车器是矿井斜坡运输中谨防跑车的安全设施。介绍了捞车器的安装位置及工作原理,研究了捞车器的设计计算,对在斜坡轨道运输中的跑车事故中存在的问题进行了分析,并对防跑车装置进行了新的改进。     

气动联锁防跑车装置的研制与应用

针对煤矿斜巷跑车事故的问题,介绍了气动联锁防跑车装置的设计及安装,以保证提升运输安全。     

KHG6-12/B轨道斜巷防跑车装置应用

淮北矿业集团公司桃园矿是一座设计年生产能力90万吨的现代化生产矿井，该矿现使用3条轨道斜巷，担负着3个采区的车皮、材料供应、掘进排矸及设备的运送与回收任务。以往对轨道斜巷跑车的防护均采用一种自制常开式捕车器跑车防护装置，俗称“老鼠夹子”．其原理是在有跑车时对摆杆进行冲击。打掉悬挂挡车栏的挂钩，使挡车栏落下而挡住跑车。实践证明，此装置在实际应用中达不到理想的防护性能。而采用KHG6—127／B型轨道斜巷防跑车装置可为斜巷全巷道防跑车保护提供全面的解决方案。     

KHG6-127/B轨道斜巷防跑车装置应用

淮北矿业集团公司桃园矿是一座设计年生产能力90万吨的现代化生产矿井,该矿现使用3条轨道斜巷,担负着3个采区的车皮、材料供应、掘进排矸及设备的运送与回收任务.以往对轨道斜巷跑车的防护均采用一种自制常开式捕车器跑车防护装置,俗称"老鼠夹子",其原理是在有跑车时对摆杆进行冲击,打掉悬挂挡车栏的挂钩,使挡车栏落下而挡住跑车.实践证明,此装置在实际应用中达不到理想的防护性能.而采用KHG6-127/B型轨道斜巷防跑车装置可为斜巷全巷道防跑车保护提供全面的解决方案.     

常闭式防跑车装置在斜井中的应用

文章介绍了常闭式防跑车装置在成庄矿副斜井中的应用,阐述了常闭式轨道斜巷防跑车装置在斜井中的安全可靠性及功能特点.     

HLZDB-3K型防跑车装置在东曲矿的应用及改进

文章介绍了斜巷防跑车装置的应用，提出传感方式的改进措施。     

东曲矿排矸系统常闭式自动防跑车装置的研制和应用

简述了东曲矿排矸系统常闭式自动防跑车装置研制的背景、工作原理、性能特点、安装与操作、适用区域及其应用效果。     

煤矿下山巷道掘进技术的研究

煤矿下山掘进中通常会出现装载困难、巷道内各处的涌水容易积存到工作面以及矿车运输过程极易出现因牵引装置的滑落或蛴绳引起跑丰事故，为了确保工程的顺利实施，本文以山东省兖矿集团南屯煤矿的具体施工为研究对象，本文通过对防止跑车的安全措施，做好排水工作，运输手段，爆破参数等部分的一系列改遣，得出高效、安全施工作业的具体方法。     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

正~~     

An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.