●●以下19篇文章网络预出版（在线出版）于2023年8月20日，预计刊于《地质论评》2023年第69卷第5、6期或2024年第70卷第1期(2023年9、11月或2024年1月15日发行纸质版）     

毕岭  肖玲  贾慧  章宏波  陈曦 《地质论评》2023,69(4):2023040010-2023040011

遗迹化石是研究古环境、古气候、地层旋回性及其全球成因动力学研究的有效载体。遗迹化石是某种环境条件下生物行为习性的直接证据,是沉积环境的灵敏指示剂,对探讨生物行为习性的演化、生物的多样性、生物地层学、事件地层学、储层地质学等都具有重要的理论意义和应用价值。基于此,本文选取CNKI核心合集数据库中的数据,对1954~2022年遗迹化石相关文献进行系统整理,采用Microsoft Excel 2016和CiteSpace 6.1.R2 软件对文献类型分布、年度发文数量、国家、机构、期刊、作者、高引文献、突现关键词等进行分析,构建和绘制各单元间相互关系,以探求研究领域关键路径及知识拐点,进而挖掘所蕴含的新知识,预测学科研究趋势。研究表明：①我国遗迹化石领域研究发文量最多的机构是河南理工大学;发文量最多的学者是胡斌;被引频次最多的论文作者是龚一鸣;我国遗迹化石的研究主要以国家层面的基金资助为主。②系统发展阶段,我国遗迹化石研究区主要集中在贵阳、新疆;创新发展阶段,研究区主要集中在河南、四川等地。③中国寒武系的遗迹化石研究主要集中在河南省、云南省和贵州省境内;奥陶系、志留系和泥盆系中的遗迹化石研究主要集中在贵州、陕西、新疆塔里木盆地、准噶尔盆地、湖南等地。石炭系—二叠系的遗迹化石研究主要集中在新疆准噶尔盆地西北部、柴达木盆地南缘等地;三叠系的遗迹化石研究主要集中在扬子地区。本文基于新的研究思路和方法,系统分析了国内遗迹化石研究现状和趋势,对于进一步了解遗迹化石具有指导意义。  相似文献   

Construction of a fluvial facies knowledge graph and its application in sedimentary facies identification     

《地学前缘(英文版)》2023,14(2):101521

Lithofacies paleogeography is a data-intensive discipline that involves the interpretation and compilation of sedimentary facies. Traditional sedimentary facies analysis is a labor-intensive task with the added complexity of using unstructured knowledge and unstandardized terminology. Therefore, it is very difficult for beginners or non-geology scholars who lack a systematic knowledge and experience in sedimentary facies analysis. These hurdles could be partly alleviated by having a standardized, structured, and systematic knowledge base coupled with an efficient automatic machine-assisted sedimentary facies identification system. To this end, this study constructed a knowledge system for fluvial facies and carried out knowledge representation. Components include a domain knowledge graph for types of fluvial facies (meandering, braided and other fluvial depositional environments) and their characteristic features (bedforms, grain size distribution, etc.) with visualization, a method for query and retrieval on a graph database platform, a hierarchical knowledge tree-structure, a data-mining clustering algorithm for machine-analysis of publication texts, and an algorithm model for this area of sedimentary facies reasoning. The underlying sedimentary facies identification and knowledge reasoning system is based on expert experience and synthesis of publications. For testing, 17 sets literature publications data that included details of sedimentary facies data (bedforms, grain sizes, etc.) were submitted to the artificial intelligence model, then compared and validated. This testing set of automated reasoning results yielded an interpretation accuracy of about 90% relative to the published interpretations in those papers. Therefore, the model and algorithm provide an efficient and automated reasoning technology, which provides a new approach and route for the rapid and intelligent identification of other types of sedimentary facies from literature data or direct use in the field.  相似文献   

防震减灾科普需求和满意度调查指标设计及结果分析     

连尉平  李玉梅  刘培玄  董青  朱林 《震灾防御技术》2021,16(4):763-770

本文针对2020年全国公众防震减灾科普满意度调查工作,设计了防震减灾科普公众接触率、受众收获评价、公众满意度和需求等指标,量化衡量防震减灾科普在公众中的触达现状、公众的收获评价、反馈评价和需求。调查结果显示,公众与防震减灾科普的接触较普遍,受众收获评价和满意度评价总体得分较高。防震减灾科普公众接触率在不同城乡、年龄、学历、职业等层面的群体差异较明显。科普活动的公众接触率相对较低,受众收获评价较高,公众对活动新颖性的满意度评价低于活动组织管理。科普作品的公众接触率最高,但受众收获评价较低,在促进公众技能提升方面具有明显短板,公众对作品形式新颖性的满意度评价低于内容通俗易懂性。科普场所的公众接触率最低,但受众收获评价最高,对公众知识、技能、意识的提升作用较好。公众对科普场所信息查找便利性的满意度较低,导致科普场所满意度评价低于科普活动和科普作品。分析表明,需重视公众需求和反馈,采取有针对性的措施进一步提升防震减灾科普效率。  相似文献   

建筑结构基础隔震技术的研究和应用   总被引：3，自引：0，他引：3  

陆鸣  田学民  王笃国  李丽媛 《震灾防御技术》2006,1(1):31-38

本文介绍了建筑结构基础隔震基本原理、隔震系统分类、隔震技术进展、隔震设计一般流程、隔震相关专著、隔震规范和应用软件,并提出隔震技术推广中有待解决的几个问题。  相似文献   

Integrating knowledge to assess coastal vulnerability to sea-level rise: The development of the DIVA tool   总被引：3，自引：0，他引：3  

Jochen Hinkel  Richard J.T. Klein 《Global Environmental Change》2009,19(3):384-395

This paper describes the development of the DIVA tool, a user-friendly tool for assessing coastal vulnerability from subnational to global levels. The development involved the two major challenges of integrating knowledge in the form of data, scenarios and models from various natural, social and engineering science disciplines and making this integrated knowledge accessible to a broad community of end-users. These challenges were addressed by (i) creating and applying the DIVA method, an iterative, modular method for developing integrating models amongst distributed partners and (ii) making the data, scenarios and integrated model, equipped with a powerful graphical user interface, directly and freely available to end-users.  相似文献   

陕北侏罗纪煤田地下水保护对策与开采利用方案 研究          下载免费PDF全文

党学亚  张茂省  董英  顾小凡 《地学前缘》2010,17(6):200-207

矿山开采活动中地下水与生态环境保护是需要综合利用多学科思想与理论解决的难题,仅从采矿工程学角度难以解决根本问题。文中从生态水文地质学的角度,针对陕北采煤安全必须疏排水和陕北能源基地建设亟须水资源支撑的现状,提出了通过充分地利用煤田地下水满足强劲用水需求来保护水资源的对策,并从矿区水文地质结构、地下水循环条件出发,根据矿区植被生态风险区划、采煤影响地下水区划,提出了建立保护矿山水资源的采煤秩序、不同阶段地下水保护与开发利用区划以及矿山掘进过程中保护性开采地下水的水源地布局规划原则与建设方案。  相似文献   

砖混建筑模型基底隔震实验研究   总被引：2，自引：1，他引：2  

张雄  刘浩吾 《地震工程与工程振动》1995,15(1):119-124

本文进行了四分之一大比尺砖混建筑模型的铅胶支座基底隔震效应的地震模拟实验工作，研究隔震结构在地震中的反应行为，为隔震技术在我国的推广应用提供了有力的支持。研究结构表明基底隔震技术是一种非常有交且又很安全的抗震措施，值午在工作中推广应用。  相似文献   

非接触测量系统的布设和精度     

徐正杨  段定乾 《测绘学院学报》1993,(3)

本文介绍了非接触测量的基本原理,探讨了其布设图形与精度的关系,得出了供作业参考的几点结论。  相似文献   

Antarctica, Scott Base and its environs     

Christine Elliott 《New Zealand geographer》2005,61(1):68-76

Abstract: The landscape in the vicinity of Scott Base is one of the most singular of landscapes in the already unique environment of the Ross Sea Region of Antarctica. A rich history of human endeavour together with a broad range of physical features such as volcanoes, various glacial landforms, polar beaches and the Dry Valleys with their own glaciers, sand dunes and patterned ground must make it one of the most fascinating areas on earth. This paper highlights some of the more notable of these landscape features.  相似文献   

The Cenozoic Lower Rhine Basin – rifting, sedimentation, and cyclic stratigraphy     

A. Schäfer  T. Utescher  M. Klett  M. Valdivia-Manchego 《International Journal of Earth Sciences》2005,94(4):621-639

In the Cenozoic, the Lower Rhine Basin formed as a rift at the southeastern terminus of the Dutch German Central Graben, while the Rhenish Massif was uplifted. The study focusses on the marginal marine and fluvial fill of the Lower Rhine Basin. A basin model is developed. Support for this study was given by extensive industry outcrop and well data, by new stratigraphical and sedimentological observations. The ingression and subsequent regression of the Cenozoic North Sea is analysed using the concept of base level cyclicity. As the geohistory of the basin was complex, a subsidence curve is constructed. Furthermore, an attempt is made to trace the simultaneous uplift of the Rhenish Massif.  相似文献