试论河南省济源西部煤田地质特征及找矿方向          下载免费PDF全文

孙越英聂怀耀  刘志如卢耀东 《甘肃地质》2007,16(1):44-49

煤是国家高度重视和急需勘查开发的重点能源矿种，后备资源的充足与否，事关国家能源安全。济源西部地区有大面积的石炭、二叠系含煤地层分布，并且含煤层数多，煤层较为稳定，具有较好的找矿前景。通过对济源西部地质特征、煤田聚煤作用、煤系地层及埋藏条件的分析，提出了在该区的找煤方向。  相似文献   

自动气象站采集器显示板维修经验     

Xu Yuanyuan  Xie Jun 《河南气象》2007,(Z1)

根据ZQZ-CⅡ型自动气象站采集器的显示板的工作原理及维修实际经验,介绍了维修显示板的基本方法及主要芯片的性能,并对典型故障进行举例分析。  相似文献   

复杂条件下大型洞室群施工反馈分析集成智能系统研究     

姜谙男 《岩土力学》2006,27(Z1):230-234

地下工程具有复杂性和不确定性的特点,大型洞室群施工反馈分析需要综合经验知识、统计分析和数值模拟等多种手段。在介绍反馈分析流程和多种反馈分析方法基础上,提出的包括数据库、知识库、模型库和推理机的IDSS框架的反馈分析的集成智能系统,并基于PB和VC++平台进行了程序的初步开发。通过在水布垭电站地下厂房的施工反馈分析中应用表明,该系统模式和开发策略是可行的。  相似文献   

建设数字孪生城市的逻辑与创新思考     

张新长  李少英  周启鸣  孙颖 《测绘科学》2021,46(3):147-152,168

介绍了数字孪生城市的提出背景以及基本概念,分析了数字孪生城市与智慧城市之间的关系,并介绍了构建数字孪生城市的主要支撑技术,最后总结了数字孪生城市的应用现状及发展趋势。作者认为,数字孪生技术要在智慧城市建设中得以更广泛的应用还将面临数据、基础知识库、系统融合以及人才问题等方面的挑战,并从宏观与微观层面提出解决这些问题的制度路径和技术路径。  相似文献   

“五维协同”下的测绘地理信息成果质量检查软件体系初探     

章力博  张继贤  韩文立  葛娟  沈晶  卢遥 《测绘通报》2021,(2):131-135,143

质量检查软件是质量检查的重要手段,是影响质量检查工作的重要因素。本文在分析测绘地理信息成果质量检查软件的现状和存在问题的基础上,结合现有的手段和新的技术,提出了由成果维、项目维、大数据维、智能维、历史维组成的“五维协同”下的测绘地理信息成果质量检查软件体系,分别阐述了测绘地理信息成果质量检查在各个维度下的工作内容,介绍了5个维度在业务流程和数据流动之间的关系,为测绘地理信息成果质量检查软件之后的研究内容、发展方向提供了思路。  相似文献   

维基的词条质量检测研究     

李德毅  张海粟  王树良  伍爵博 《武汉大学学报(信息科学版)》2011,36(12):1387-1391

分析了维基百科的基本现状,尤其是关于维基词条质量的统计分析结论,研究了维基百科中＂基于相关性分析＂和＂基于模型＂这两种词条质量检测方法,讨论了其对群体智能研究的启示及开放性问题。  相似文献   

BOOK REVIEWS     

《The Professional geographer》1987,39(2):238-266

Book Reviewed in this article: Women, Work, and Ideology in the Third World . Haleh Afshar, ed. The Birth of the National Park Service. The Founding Years 1913–33 . Horace M. Albright Theatres of Accumulation: Studies in Asian and Latin American Urbanization . Warwick Armstrong and T.G. McGee. New Tools for Social Scientists, Advances and Applications in Research Methods . William D. Berry and Michael S. Lewis -Beck , eds . Uncertain Dimensions: Western Overseas Empires in the Twentieth Century . Raymond F. Betts. Geography of Sugar Cane . Helmut Blume. The Mines of Neptune: Minerals and Metals from the Sea . Elisabeth Mann Borgese. Geographical Dimensions of Energy . F.J. Calzonetti and B.D. Solomon, eds. Statistical Methods for Geographers . W. A. V. Clark and P. L. Hosking. In The Wake of Columbus, Islands and Controversy . John DeVorsey, Jr., and John Parker, eds. Housing, States and Localities . Peter Dickens, Simon Duncan, Mark Goodwin and Fred Gray. Physician Location and Specialty Choice . Richard L. Ernst and Donald E. Yett. Practical Ecology for Geography and Biology: Survey, Mapping, and Data Analysis . D.D. Gilbertson , M. Kent and F.B. Pyatt Large Scale Water Transfers: Emerging Environmental and Social Experiences . Genady N. Golubev and Asit K. Biswas, eds. The Nature of the Environment . Andrew Goudie. Planning for Population Change . W.T.S. Gould and R. Lawton. The Niger and its Neighbors: Environmental History and Hydrobiology. Human Use and Health Hazards of the Major West African Rivers . A.T. Grove, ed. Remote Sensing of Ice and Snow . Dorothy K. Hall and Jaroslav Martinec. Atlas of Antebellum Southern Agriculture . Sam Bowers Hilliard. Galilee Divided; The Israel-Lebanon Frontier, 1916-1984 . Frederic C. Hor . Plains Country Towns . John C. Hudson. Agricultural Geography: A Social and Economic Analysis . Brian W. Ilbery. Industry in the 1980s: Structural Change and Interdependence . U.N. Industrial Development Organization. Crabgrass Frontier: The Suburbanization of the United States . Kenneth T. Jackson. The Industrial Geography of Italy . Russell King. Studies in Linguistic Geography: The Dialects of English in Britain and Ireland . John M. Kirk, Stewart Sanderson, J.D.A. Widdowson, eds. Tourism: A Community Approach . Peter E. Murphy. Cities and Services: The Geography of Collective Consumption . Steven Pinch. An Historical Geography of Europe 1800–1914 . Norman J. G. Pounds. An Introduction to Human Ecology Research on Agricultural Systems in Southeast Asia . A. Terry Rambo and Percy E. Sajise, eds. Discovering Past Landscapes . Michael Reed, ed. Managing the Ocean: Resources, Research, Law . Jacques G. Richardson, ed. Carta fitosociologica de la transecta botanica de la Patagonia Austral . F.A. Roig , Juan Anchorema , Orlando Dollenz , A.M. Faggi and Eduardo Mandez Intermetropolitan Migration in Canada: Changing Determinants over Three Decades . R. Paul Shaw. Chinese Cities—The Growth of the Metropolis since 1949 . Victor F. Sit, ed. Urbanization in the World-Economy . Michael Timberlake, ed. The Al Business: Commercial Uses of Artificial Intelligence . Patrick H. Winston and Karen A. Prendergast, eds.  相似文献   

Galactic gradients, postbiological evolution and the apparent failure of SETI     

Milan M. &#x;irkovi&#x;  Robert J. Bradbury 《New Astronomy》2006,11(8):628-639

Motivated by recent developments impacting our view of Fermi’s Paradox (the absence of extraterrestrials and their manifestations from our past light cone), we suggest a reassessment of the problem itself, as well as of strategies employed by the various SETI projects so far. The need for such reassessment is fueled not only by the failure of SETI thus far, but also by great advances recently made in astrophysics, astrobiology, computer science and future studies. As a result, we consider the effects of the observed metallicity and temperature gradients in the Milky Way galaxy on the spatial distribution of hypothetical advanced extraterrestrial intelligent communities. While properties of such communities and their sociological and technological preferences are, obviously, unknown at present, we assume that (1) they operate in agreement with the known laws of physics and (2) at some point in their history they typically become motivated by a meta-principle embodying the central role of information-processing; a prototype of the latter is the recently suggested Intelligence Principle of Steven J. Dick. There are specific conclusions of practical interest to astrobiological and SETI endeavors to be drawn from the coupling of these reasonable assumptions with the astrophysical and astrochemical structure of the spiral disk of our galaxy. In particular, we suggest that the outer regions of the Galactic disk are the most likely locations for advanced SETI targets, and that sophisticated intelligent communities will tend to migrate outward through the Galaxy as their capacities of information-processing increase, for both thermodynamical and astrochemical reasons. However, the outward movement is limited by the decrease in matter density in the outer Milky Way. This can also be regarded as a possible generalization of the galactic habitable zone (GHZ), concept currently being investigated in astrobiology.  相似文献   

多源大数据支持的土地储备智能决策模型集研究     

李军  刘举庆  游林  董恒  俞艳  张晓盼  钟文军  杨典华 《地球信息科学学报》2022,24(2):299-309

伴随着城镇化的快速推进,城乡建设用地资源日益紧张,但目前土地储备决策缺乏精准科学依据,无法有效地进行资源配置和宏观调控。针对此问题,本文深入剖析土地储备基本业务与决策环节,研究了一套面向土地储备的智能决策模型集,包括存量土地监测模型、收储成本预测模型、出让价格预测模型、储备平衡分析模型、相似地块分析模型、开发时序分析模型及病态地块识别模型,旨在将土地储备决策环节科学化、定量化和模型化,并重点为土地储备总量、效益、规模、结构、布局、时序的统筹安排提供建议。另外,该模型集具有体系化、高效灵活、智能化的特点,能够服务于储备业务全链条,满足即时决策应用需求和实现模型自主更新与进化,保证模型的时效性。最后,该模型集已经工程化应用于宁波市土地储备智能决策支持平台,实践验证了以上决策模型具有较高的准确度和实用性,表明模型集能够为土地储备的科学决策提供理论依据,有利于土地资源的集约利用和高效配置。  相似文献   

桥基隧道明挖施工多元信息集成智能方法与应用   总被引：1，自引：0，他引：1  

姜谙男  沙权贤  宋战平 《岩土力学》2014,299(2):490-496

针对大连地铁香工街车站明挖施工邻接桥桩的问题,构建施工远程信息自动化监测体系,进行静力水准仪、电子测斜仪、电子轴力计等传感器布置,获得施工过程多元信息。基于Visual C#.Net平台自主开发了集成智能分析系统,引入支持向量机和差异进化算法,建立三维力学参数反分析和时间序列预测方法。该软件系统包括数据操作、反馈分析、数据报警和可视化输出的模块。将该方法系统应用于大连地铁香工街车站施工过程,进行多元信息采集,利用实际监测的信息数据,调用系统差异进化算法进行第2层和第3层岩石弹性参数搜索,反馈计算值与监测值的最大相对误差为8.23%,进而简化了倒换撑方案。然后通过对QCJ-13-01桥墩监测数据的DE-SVM非线性时间序列预测和超前报警,及时采取隔离桩措施,有效地控制了桥桩变形。该方法系统集自动化远程监测硬件技术和计算智能分析功能于一体,为类似复杂地下工程信息化施工提供先进有效的途径。  相似文献