锰的催化动力学分析法概况   总被引：8，自引：0，他引：8  

张振辉 《岩矿测试》1991,10(1):56-59

本文就催化动力学测定锰的概况作一介绍,引用直接有关的原始文献60篇。  相似文献   

卟啉类化合物在光度分析中的应用新进展   总被引：9，自引：0，他引：9  

方梅  胡守坤 《岩矿测试》1991,10(4):318-324

卟啉类化合物应用于光度分析灵敏度高、方法简便,并能测定多种元素。本文就1987年以来的国内文献作一综述(1987年前见文献)。从中可见,卟啉在光度法同时测定多组分、荧光分析、离子交换树脂比色法、光度法与HPLC联用以及作为生物模拟酶应用于光度分析等方面的潜力仍有待挖掘。  相似文献   

地震次生火灾研究进展          下载免费PDF全文

张立新 《地震工程学报》2020,42(6):1693-1699

由于双重灾种叠加，地震次生火灾曾经带来过巨大生命财产损失，并始终严重威胁人类社会。梳理历史上几次重大地震次生火灾情况，归纳地震次生火灾的成灾与蔓延研究成果，讨论现有研究成果中常用的分析手段和研究方法；从工程结构和装备设施，以及灾害区划单元两个层面总结分析了地震次生火灾的风险与损失评估研究成果；从民用建筑、油气化工设施、核电站、灾后安置点与林业等多个方面探讨地震次生火灾的预防和控制研究进展。采用文献计量学方法对近二十年以"地震次生火灾"为主题的中文文献进行统计，并分析研究热度与地震事件的联系。  相似文献   

GGR Critical Review of Analytical Developments in 2003     

Janet M. Hergt  L. Paul Bédard  Etienne Deloule  Kathryn L. Linge  Paul J. Sylvester  Michael Wiedenbeck  Jon D. Woodhead 《Geostandards and Geoanalytical Research》2005,29(1):5-52

The articles that comprise this critical review serve to draw attention to research papers published in specific fields of interest during 2003, provide critical comment on the relevance and importance of individual publications in these fields, and offer an overview of the comparative importance of advances in particular areas. In this way, these articles aim to assist experts in the field by keeping them informed of relevant recent publications, as well as providing an important resource for students or early career researchers who are embarking on studies in an area new to them. This year, five papers provide summaries of developments in bulk sample determinations employing (1) ICP-AES and ICP-MS (trace elements), (2) XRF and atomic absorption spectrometry and INAA, (3) isotope ratio measurements (TIMS, MC-ICP-MS, ICP-MS, ToF), as well as in situ measurements conducted using (4) secondary ion mass spectrometry and (5) laser ablation ICP-MS (trace element and isotope ratio determinations).  相似文献   

痕量铁和锰的化学发光检测   总被引：5，自引：1，他引：5  

周延秀  朱果逸 《岩矿测试》1997,16(3):221-228

评述了国内外有关铁、锰的化学发光分析进展。从发光体系、操作方式、最佳条件、干扰离子、检测限等各个方面对化学发光法测定铁、锰及其它们与其它组分同时测定中的应用进行分类评述。  相似文献   

人工神经网络与分析测试技术的研究与发展   总被引：8，自引：0，他引：8  

罗立强  马光祖 《岩矿测试》1997,16(4):267-276

回顾了人工神经网络研究的发展历程，简要介绍了神经网络模型与算法，对分析测试技术和相关学科中的人工神经网络研究及在流程控制、错误诊断、参数估计、传感器模型、模式识别与分类、环境监测与治理及光谱与化学分析中的应用等作了评述。引用参考文献１１３篇。  相似文献   

铋的原子吸收光谱分析进展   总被引：4，自引：0，他引：4  

米瑞华 《岩矿测试》1997,16(4):277-283

文章对１９８５年以来用原子吸收光谱法测定Ｂｉ的情况进行了综述，着重介绍了用氢化物发生法、石墨炉法和火焰法测Ｂｉ时，为了提高灵敏度所采用的各种氢化物发生装置及根据不同试样所使用的各种分离富集手段。主要参考文献１０１篇。  相似文献   

我国地质分析综述论文统计   总被引：2，自引：0，他引：2  

石秀琴  陈幼平 《国土资源情报》2002,(10)

作者检索了地质分析专业刊物《岩矿测试》、《地质实验室》全部论文以及国内相关期刊近30年来的文献.统计分析了地质分析综述性文献在各有关期刊的分布及特点,为了解和评价国内地质分析文献的基本状况提供了有益信息。  相似文献   

关于伽玛能谱数据特征参数的讨论   总被引：2，自引：0，他引：2  

戴杰敏 《铀矿地质》2002,18(1):52-55

笔在探讨了伽玛能谱数据3个特征参数后认为，古铀含量实际上是用现代钍当量含量的衬度表征的测点铀当量含量相对于其区域平均值的变化，而不是“古铀丰度”；古铀迁移量不代表“活化铀量”；铀变迁系数等于现代铀当量含量的衬度与钍当量含量的衬度之比值，无法理解它代表了铀的迁入和迁出。因此，在区域调查中用伽玛能谱数据3个特征参数反映古铀特征既不确切，也不可取。  相似文献   

Investigating Landslides Caused by Earthquakes – A Historical Review     

David K. Keefer 《Surveys in Geophysics》2002,23(6):473-510

Post-earthquake field investigations of landslide occurrence have provided a basis for understanding, evaluating, and mapping the hazard and risk associated withearthquake-induced landslides. This paper traces thehistorical development of knowledge derived from these investigations. Before 1783, historical accounts of the occurrence of landslides in earthquakes are typically so incomplete and vague that conclusions based on these accounts are of limited usefulness. For example, the number of landslides triggered by a given event is almost always greatly underestimated. The first formal, scientific post-earthquake investigation that included systematic documentation of the landslides was undertaken in the Calabria region of Italy after the 1783 earthquake swarm. From then until the mid-twentieth century, the best information on earthquake-induced landslides came from a succession ofpost-earthquake investigations largely carried out by formal commissions that undertook extensive ground-based field studies. Beginning in the mid-twentieth century, when the use of aerial photography became widespread, comprehensive inventories of landslide occurrence have been made for several earthquakes in the United States, Peru, Guatemala, Italy, El Salvador, Japan, and Taiwan. Techniques have also been developed for performing ``retrospective' analyses years or decades after an earthquake that attempt to reconstruct the distribution of landslides triggered by the event. The additional use of Geographic Information System (GIS) processing and digital mapping since about 1989 has greatly facilitated the level of analysis that can applied to mapped distributions of landslides. Beginning in 1984, syntheses of worldwide and national data on earthquake-induced landslides have defined their general characteristics and relations between their occurrence and various geologic and seismic parameters. However, the number of comprehensive post-earthquake studies of landslides is still relatively small, and one of the most pressing needs in this area of research is for the complete documentation of landslides triggered by many more earthquakes in a wider variety of environments.  相似文献