一类高炉出铁水的冲渣自动跟踪系统

针对一类高炉出铁水冲渣系统难以实现冲水量自动跟踪炼铁废料量的闭环控制问题，提出了采用基于仿人智能的自适应控制策略，讨论了控制结构模式、任务与参数自适应控制算法。系统投运效果表明：该算法在类似的不确定性自动跟踪系统中应用的有效性、鲁棒性好，跟踪精度高。     

新型车载底盘自动集中润滑系统的研制

车载底盘自动集中润滑技术解决了车辆底盘由手动润滑所带来的一系列问题，实现了底盘封闭的自动精确润滑，有效地延长了底盘的寿命，并减少底盘的维护成本．文中介绍了一种高级大型客车使用的新型车载底盘自动集中润滑系统，该系统采用高效润滑泵、嵌入式控制结构及车内CAN总线扩展技术，不仅提高了系统的自动化程度，也提高了其可靠性，     

螺旋桨空化流场调控研究

为改善水力机械的空化现象，基于流动控制结构布置原则和波茨坦水池测试(PPTC)螺旋桨空化流场特性，在保障整体性能的前提下，分别在叶尖与叶根位置设计控制结构进行局部调控。对比分析4种改进螺旋桨与原始螺旋桨的空化流场特性，研究控制结构对螺旋桨空化流场调控的作用机理。结果表明：添加控制结构牺牲了较小的效率，显著减小了空泡区域体积，改善了螺旋桨综合性能；重载工况下，PPTC-t2螺旋桨的综合性能最好，效率损失了0.134%,空泡区域体积减小了24.6%;设计工况下，PPTC-t1螺旋桨的综合性能最好，效率损失了0.284%,空泡区域体积减小了19.5%;控制结构附近流速降低，诱发了局部高压，延缓了空化发生，实现了空化流场的局部调控。研究为改善水力机械的空化问题提供了有效途径。     

专家系统开发工具MESDT的研究与设计

ＭＥＳＤＴ是面向多领域、具有多种知识表示、采取黑板控制结构、拥有多种推理机制的新一代专家系统开发工具。借助本工具提供的知识表示形式、推理机制、控制机制等，可以容易地生成实用的专家系统。本文论述了它的设计思想和实现过程。     

基于知识的工业窑炉控制策略

提出了一种应用于工业窑炉控制的基于知识的实时控制方法,并结合水泥生产机立窑锻烧过程的控制,阐述了它在工业窑炉控制中的应用,对该方法中知识的分层组织和控制结构进行了较深入的分析。     

基于室温模糊PID控制的供暖监控系统

基于模糊控制和PID控制理论，在经典PID控制结构中加入Fuzzy自调整结构，对集中供暖系统室温的控制策略进行深入探讨，从而改善室温的自动控制，使系统具有良好的控制效果和鲁棒性。该监控系统以计算机技术、智能仪器仪表技术、传感器技术、现代电子技术和通讯技术相结合，对集中供暖温度监控系统的现场监控软、硬件，及监控中心进行了设计和研究。使该系统实现了远程通讯控制，便于管理，调节直观，可以自动调节室温使其更加舒适，同时提高用户的节能意识，达到良好的节能效果，具有良好的经济效益和社会效益。     

基于S7—200的PID算法应用

基于PLC在PID闭环控制方面的设计和应用,给出PID控制的数学模型及其控制结构.采用PID控制系统的进水和出水,实现自动调节,保证系统水量稳定,可以起到精确控制的作用.     

基于知识表达和推理的河网自动选取

针对河系是地图上重要的要素，它的自动选取是地图综合的基本手段之一，把基于知识的人工智能方法引入地图自动综合是一种合理选择。把河系自动综合中的知识分为空间知识、属性知识及综合规则，研究了这三类知识的获取策略和形式化方法，建立了河系自动综合的产生式规则库：在规则库中依据规则驱动采用正向推理完成河系选取的推理过程，推理中全面考虑了河网知识和综合中各条规则的优先级和权重。通过实验验证了该方法对保持河系的整体结构特征的有效性。     

一种自动排除偏差的在线式专家知识获取方法

针对操作指导专家系统中知识获取方面所存在的问题，提出了一种排除示例中的偏差，强化正例，自动获取知识的方法，实现了专家操作在线自动获取知识，有效地解决了专家知识的自提高问题。     

制造系统的控制结构及其发展趋势

为了探讨制造系统中控制结构的研究现状及发展趋势,以制造系统的发展历程为背景,介绍了制造系统及其控制结构的基本概念．根据制造系统对控制结构的要求,对制造系统的集中控制、递阶控制和非等级控制等三种基本控制结构的特征及优缺点进行了综述,对非等级控制结构的设计原则和控制单元之间控制职责的分配、协调方法等最新研究动态进行了跟踪整理,对混杂控制的几种常见形式进行了归纳,最后指出了控制结构在应用中存在的主要问题及控制结构研究的热点和发展趋势．     

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)

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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.