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| 1 | Evaluation on the accuracy of digital elevation models显示文摘There is a growing interest in investigating the accuracy of digital elevation model (DEM). However people usually have an unbalanced view on DEM errors. They emphasize DEM sampling errors, but ignore the impact of DEM resolution and terrain roughness on the accuracy of terrain representation. This research puts forward the concept of DEM terrain representation error (Et) and then investigates the generation, factors, measurement and simulation of DEM terrain representation errors. A multi-resolution and multi-relief comparative approach is used as the major methodology in this research. The experiment reveals a quantitative relationship between the error and the variation of resolution and terrain roughness at a global level. Root mean square error (RMS Et) is regressed against surface profile curvature (V) and DEM resolution (R) at 10 resolution levels. It is found that the RMS Et may be expressed as RMS Et = (0.0061 ( V+ 0.0052) ( R - 0.022 ( V + 0.2415. This result may be very useful in forecasting DEM accuracy, as well as in determining the DEM resolution related to the accuracy requirement of particular application. | TANG Guo-an~1, Josef Strobl~2, GONG Jian-ya~3, ZHAO Mu-dan~1, CHEN Zhen-jiang~1 (1. Department of Geography, Northwest University, Xi’an 710069, China 2. Department of Geography and Geoinformation, Salzburg University, Hellbrunnerstr. 34, A-5020 Salzb | 2001 | Journal of Geographical Sciences2001，11，2： | 13 |
| 2 | 成年人身体活动变化过程的理论建构及其测量工具的研究显示文摘介绍了一个近期由中国和德国锻炼心理学家们共同构建的、针对成年人身体活动变化过程的理论——'从无活动到保持活动的四步骤模型'(Four Steps fromInactivity to Activi-ty;FIT模型),并初步检验了基于FIT模型编制的测量工具——《成年人身体活动调查问卷》。研究认为,FIT模型系统地描述了中德两国成年人身体活动变化过程的阶段特点,以及与行为阶段转化密切相关的健康体质因素和社会心理环境的影响因素。所用调查问卷在两国成年人样本中均具有良好的心理测量学信、效度水平。今后可以在此基础上进一步开展系列实证性研究,以推动FIT模型在中德两国的发展。 | 段艳平 韦晓娜 WALTER Brehm HELMUT Strobl 黄志剑 姒刚彦 SUSANNE Tittlbach | 2011 | 体育科学2011，31，7： | 10 |
| 3 | 成年人身体活动变化的理论建构、问卷发展及系列实证研究——一项中德合作科研课题显示文摘从以下几方面详细介绍一项为期3年(2009-2011)的中德合作科研课题——'健康行为和健康资源的身体活动:阶段、决定因素和效益'。(1)阐述'从无活动到保持活动的4步骤(FIT)模型'的理论建构。(2)以FIT模型为基础,检验中文版和德文版'成年人身体活动调查问卷'的信效度水平。(3)以中德成年人为研究被试,考查FIT模型的效度。研究结果表明:FIT模型能够较准确地描述中德两国成年人身体活动变化过程的阶段性特征及其影响因素,该模型的阶段算法效度、诊断功能及服务干预的功能均得到初步验证,为未来进行基于FIT模型的阶段匹配干预研究提供了理论依据和实证支持。 | 段艳平 WALTER BREHM HELMUT STROBL 黄志剑 姒刚彦 SUSANNE TITTLBACH | 2012 | 天津体育学院学报2012，27，3： | 9 |
| 4 | Spatial Structure Characteristics Detecting of Landform based on Improved 3D Lacunarity Model显示文摘The spatial structure characteristics of landform are the foundation of geomorphologic classification and recognition.This paper proposed a new method on quantifying spatial structure characteristics of terrain surface based on improved 3D Lacunarity model.Lacunarity curve and its numerical integration are used in this model to improve traditional classification result that different morphological types may share the close value of indexes based on global statistical analysis.Experiments at four test areas with different landform types show that improved 3D Lacunarity model can effectively distinguish different morphological types per texture analysis.Higher sensitivity in distinguishing the tiny differences of texture characteristics of terrain surface shows that the quantification method by 3D Lacu-narity model and its numerical integration presented in this paper could contribute to improving the accuracy of land-form classifications and relative studies. | TAO Yang TANG Guo'an Josef STROBL | 2012 | Chinese Geographical Science2012，22，1： | 4 |
| 5 | The impact of resolution on the accuracy of hydrologic data derived from DEMs显示文摘Hydrologic data derived from digital elevation models (DEM) has been regarded as an effective method in the spatial analysis of geographical information systems (GIS). However, both DEM resolution and terrain complexity has impacts on the accuracy of hydrologic derivatives. In this study, a multi-resolution and multi-relief comparative approach was used as a major methodology to investigate the accuracy of hydrologic data derived from DEMs. The experiment reveals that DEM terrain representation error affects the accuracy of DEM hydrological derivatives (drainage networks and watershed etc.). Coarser DEM resolutions can usually cause worse results. However, uncertain result commonly exists in this calculation. The derivative errors can be found closely related with DEM vertical resolution and terrain roughness. DEM vertical resolution can be found closely related with the accuracy of DEM hydrological derivatives, especially in the smooth plain area. If the mean slope is less than 4 degrees, the derived hydrologic data are usually unreliable. This result may be helpful in estimating the accuracy of the hydrologic derivatives and determining the DEM resolution that is appropriate to the accuracy requirement of a particular user. By applying a threshold value to subset the cells of a higher accumulation flow, a stream network of a specific network density can be extracted. Some very important geomorphologic characteristics, e.g., shallow and deep gullies, can be separately extracted by means of adjusting the threshold value. However, such a flow accumulation- based processing method can not correctly derive those streams that pass through the working area because it is hard to accumulate enough flow direction values to express the stream channels at the stream’s entrance area. Consequently, errors will definitely occur at the stream抯 entrance area. In addition, erroneous derivatives can also be found in deriving some particular rivers, e.g., perched (hanging up) rivers, anastomosing rivers and braided rivers. Therefore, more work should be done to develop and perfect the algorithms. | Tang Guo-an Hui Yang-he Josef Strobl Liu Wang-qing | 2001 | Journal of Geographical Sciences2001，11，4： | 3 |
| 6 | Digital earth:yesterday,today,and tomorrow显示文摘The concept of Digital Earth(DE)was formalized by Al Gore in 1998.At that time the technologies needed for its implementation were in an embryonic stage and the concept was quite visionary.Since then digital technologies have progressed significantly and their speed and pervasiveness have generated and are still causing the digital transformation of our society.This creates new opportunities and challenges for the realization of DE.‘What is DE today?’,‘What could DE be in the future?’,and‘What is needed to make DE a reality?’.To answer these questions it is necessary to examine DE considering all the technological,scientific,social,and economic aspects,but also bearing in mind the principles that inspired its formulation.By understanding the lessons learned from the past,it becomes possible to identify the remaining scientific and technological challenges,and the actions needed to achieve the ultimate goal of a‘Digital Earth for all’.This article reviews the evolution of the DE vision and its multiple definitions,illustrates what has been achieved so far,explains the impact of digital transformation,illustrates the new vision,and concludes with possible future scenarios and recommended actions to facilitate full DE implementation. | Alessandro Annoni Stefano Nativi ArzuÇöltekin Cheryl Desha Eugene Eremchenko Caroline M.Gevaert Gregory Giuliani Min Chen Luis Perez-Mora Joseph Strobl Stephanie Tumampos | 2023 | International Journal of Digital Earth2023，16，1： | 2 |
| 7 | The environmental performance of firms: the role of foreign ownership, training, and experience 显示文摘 | MATTHEW C A ROBERT R J STROBL E | 2008 | Ecological Economics2008，，： | 1 |
| 8 | Foreign direct investment and wages in domestic firms in Ireland: productivity spillovers versus labor-market crowding out 显示文摘 | Barry F Gorg H Strobl E | 2005 | International Journal of the Economics of Business2005，12，1： | 1 |
| 9 | The effect of R&D subsidies on private R&D 显示文摘 | G:rg H Strobl E | 2007 | Eeonomica2007，74，5： | 1 |
| 10 | Anticoagulation in combined membrane/adsorption systems显示文摘 | Hartmann J Strobl K Falkenhagen D | | 0，，02： | 1 |
| 11 | Multinational Companies and Productivity Spillovers:A Meta-Analysis显示文摘 | GORG H STROBL g | | 0，，111： | 1 |
| 12 | Bank Capital Regulation with Random Au- dits 显示文摘 | Sudipto Bhattacharya Manfred Plank Gunter Strobl Jo- sef Zechner | 2002 | Journal of Economic Dynamics and Control2002，26，7： | 1 |
| 13 | TGF-beta1 regulation of dendritic cells显示文摘 | Strobl H Knapp W | 1999 | Microbes Infect1999，1，15： | 1 |
| 14 | Graphical modeling can be used to illustrate associations between variables describing functioning in head and neck cancer patients显示文摘 | Becker S Strobl R Cieza A | | 0，，08： | 1 |
| 15 | Everolimus for the treatment of subependyraal giant cell astroeytoma probably causing seizure aggravation in a child with tuberous sclerosis complex: a case report 显示文摘 | Wiemer-Kruel A Woerle H Strobl K | 2014 | Neuropediatrics2014，45，2： | 1 |
| 16 | Outsourcing,Foreign Ownership, Exporting and Productivity: An Empirical Investigation with Plant Level Data 显示文摘 | Holger Gorg Aoife Hanley and Erie Strobl | 2004 | Research Paper2004，，： | 1 |
| 17 | Flow cytometric analysis of cellsurface and intraeellular antigens in leukemia diagnosis显示文摘 | KNAPP W STROBL H MAJDIC O | 1994 | Cytometry1994，18，： | 1 |
| 18 | Fractionated Plasma Separation and Adsorption System A Novel System for Blood Purification to Remove Albumin Bound Substances显示文摘 | Falknhagen D Wolfram Strobl Gerd Vogt | 1999 | Artificial Organs1999，23，1： | 1 |
| 19 | Appearance of the fetal posterior fossa atll+3tol3+6 gestational weeks in transabdominal ultrasound examination显示文摘 | Egle D Strobl I Weiskopf-Schwendinger V | 2011 | Ultrasound Obstet Gynecol2011，38，6： | 1 |
| 20 | Patients' functioning as predictor of nursing workload in acute hospital units providing rehabilitation care: a multi-centre cohort study显示文摘 | Mueller M Lohmann S Strobl R | 2010 | BMC Health Services Research2010，10，295： | 1 |
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