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Preface:Corrosion and protection in marine environment

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Journal of Central South University 2024年第10期31卷 3349-3351页

作者： ZHANG Bin-bin ZHANG Rui-yong WANG Yi WANG Wei SAND wolfgang Key Laboratory of Advanced Marine Materials Key Laboratory of Marine Environmental Corrosion and Bio-foulingInstitute of OceanologyChinese Academy of SciencesQingdao 266071China University of Chinese Academy of Sciences Beijing 100049China School of Materials Science and Engineering Ocean University of ChinaQingdao 266100China Aquatic Biotechnology University of Duisburg-Essen45141 EssenGermany

The development of the marine economy,the protection of maritime rights,and the construction of a maritime power all rely on the support of various marine engineering facilities and ***,when materials are used in marine environments,they face various issues of corrosion and *** occurrence of these problems not only significantly impacts the performance of materials but can also lead to substantial economic losses and even catastrophic or sudden safety ***,corrosion and prevention of various materials used in marine environments have always been challenging issues faced by researchers and engineering professionals.A deep understanding of the marine corrosion mechanisms of various materials,as well as the design and development of materials and technologies with excellent anti-corrosion properties,are the focal points and hot topics of interest for researchers in this field.

关键词： corrosion Corrosion fouling

Upstream-downstream linkages of hydrological processes in the Himalayan region

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Ecological Processes 2014年第1期3卷 51-66页

作者： Santosh Nepal wolfgang-Albert Flugel Arun Bhakta Shrestha International Centre for Integrated Mountain Development(ICIMOD) KathmanduNepal Department of Geoinformatics Hydrology and ModellingFriedrich Schiller UniversityJena(FSU-Jena)Germany

Understanding the upstream-downstream linkages in hydrological processes is essential for water resources planning in river *** there are many studies of individual aspects of these processes in the Himalayan region,studies along the length of the basins are *** study summarizes the present state of knowledge about linkages in hydrological processes between upstream and downstream areas of river basins in the Himalayan region based on a literature *** paper studies the linkages between the changes in the physical environment of upstream areas(land use,snow storage,and soil erosion)and of climate change on the downstream water availability,flood and dry season flow,and erosion and *** is argued that these linkages are complex due to the extreme altitudinal range associated with the young and fragile geology,extreme seasonal and spatial variation in rainfall,and diversity of anthropogenic *** on the findings,the paper concludes that integrated systems analysis is required to understand the holistic complexity of upstream-downstream linkages of hydrological processes in the river basin *** integrated land and water resources management(ILWRM)approach can be instrumental in developing adaptive solutions to problems and can also enable stakeholders of upstream and downstream areas with various interests and needs to work together for the better utilization and management of land and water *** a part of this,the specific circumstances of the upstream communities,who live in fragile and inaccessible mountain areas with limited resource opportunities,should be taken into account so that incentive mechanisms can be established to encourage and acknowledge their contribution.

关键词： Integrated land and water resources management Himalayan region Integrated systems analysis Geoinformatics Physical linkages Value of environmental services

Imaging disturbance zones ahead of a tunnel by elastic full-waveform inversion:Adjoint gradient based inversion *** space reduction using a level-set method

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Underground Space 2018年第1期3卷 21-33页

作者： Andre Lamert Luan T.Nguyen wolfgang Friederich Tamara Nestorovic Seismology Institute of GeologyMineralogy and GeophysicsRuhr-Uniersity BochumGermany Reservoir Engineering and Rock Physics International Geothermal CenterBochuon University of Applied SciencesGermany Mechanics of Adaptive Systems Institute of Computational EngineeringRudhr-Umiversity BochumGermany

We present and compare twoﬂexible and effective methodologies to predict disturbance zones ahead of underground tunnels by using elastic full-waveform *** methodology uses a linearized,iterative approach based on misﬁt gradients computed with the adjoint method while the other uses iterative,gradient-free unscented Kalmanﬁltering in conjunction with a level-set *** the former does not involve a priori assumptions on the distribution of elastic properties ahead of the tunnel,the latter intro-duces a massive reduction in the number of explicit model parameters to be inverted for by focusing on the geometric form of potential disturbances and their average elastic *** imaging methodologies are validated through successful reconstructions of simple *** an application,we consider an elastic multiple disturbance *** using identical synthetic time-domain seismo-grams as test data,we obtain satisfactory,albeit different,reconstruction results from the two inversion *** computa-tional costs of both approaches are of the same order of magnitude,with the gradient-based approach showing a slight *** model parameter space reduction approach compensates for this by additionally providing a posteriori estimates of model parameter uncertainty.

关键词： Tunnel seismics Full waveform inversion Seismic waves Level-set method Adjoint method Kalman filter

Using machine learning and a data-driven approach to identify the small fatigue crack driving force in polycrystalline materials

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npj Computational Materials 2018年第1期4卷 363-372页

作者： Andrea Rovinelli Michael D.Sangid Henry Proudhon wolfgang Ludwig School of Aeronautics and Astronautics Purdue University701W.Stadium AveWest LafayetteIN 47907USA MINES ParisTech PSL Research UniversityMAT-Centre des matériauxCNRS UMR 7633BP 8791003 EvryFrance University of Lyon INSA LyonMATEISUMR 5510 CNRSF-69621 LYONFrance

The propagation of small cracks contributes to the majority of the fatigue lifetime for structural *** significant interest,criteria for the growth of small cracks,in terms of the direction and speed of crack advancement,have not yet been *** this work,a new approach to identify the microstructurally small fatigue crack driving force is *** network and machine learning techniques are utilized to identify relevant micromechanical and microstructural variables that influence the direction and rate of the fatigue crack propagation.A multimodal dataset,combining results from a high-resolution 4D experiment of a small crack propagating in situ within a polycrystalline aggregate and crystal plasticity simulations,is used to provide training *** relevant variables form the basis for analytical expressions thus representing the small crack driving force in terms of a direction and a rate *** ability of the proposed expressions to capture the observed experimental behavior is quantified and compared to the results directly from the Bayesian network and from fatigue metrics that are common in the *** indicate that the direction of small crack propagation can be reliably predicted using the proposed analytical model and compares more favorably than other fatigue metrics.

关键词： fatigue crack driving

Magnetic Properties of Tree Leaves and Their Significance in Atmospheric Particle Pollution in Linfen City,China

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Chinese Geographical Science 2013年第1期23卷 59-72页

作者： YIN Gang HU Shouyun CAO Liwan wolfgang ROESLER Erwin APPEL State Key Laboratory of Lake Science and Environment Nanjing Institute of Geography and LimnologyChinese Academy of Sciences University of Chinese Academy of Sciences Institute for Geosciences University of Tübingen

Fifty-one tree leaves were sampled in the industrial area,residential area,and Fenhe River ecological zone,for the purpose of a magnetic study on atmospheric pollution in Linfen City,Shanxi Province,*** of mass-specific magnetic susceptibility(χ) show a significant variation range(from 11.6 × 10-8 m3/kg to 129.7 × 10-8 m3/kg).Overall values of magnetic susceptibility decline in the following sequence:industrial area > residential area > Fenhe River ecological *** relatively elevated concentration-related magnetic parameters(saturation isothermal remanent magnetization,anhysteretic remanent magnetization and magnetic susceptibility) appear in the industrial area,with their highest values in the vicinity of Linfen Steel *** particles are dominated by multidomain,magnetite-like *** particle concentration and grain size both decrease with the increasing distance from industrial area,indicating the industrial area,especially Linfen Steel Mill,is the main source of atmospheric particle *** area and Fenhe River ecological zone are also affected by industrial emission to a certain *** results of this study indicate that magnetic measurements of tree leaves are practicable for monitoring and determination of atmospheric pollution in Linfen City.

关键词： tree leaves environmental magnetism atmospheric particulate matter environmental pollution Linfen City China

Fuzzy topological relations between fuzzy spatial objects

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测绘科学 2006年第S1期31卷 64-68页

作者：唐新明 wolfgang Kainz 中国测绘科学研究院地理空间信息工程国家测绘局重点实验室 Cartography and Geoinformation Department of Geography and Regional Research University of Vienna Universit tsstrasse 7A-1010 ViennaAustria

Fuzziness is an internal property of spatial *** to model fuzziness of a spatial object is a main task of next generation *** paper proposes basic fuzzy spatial object types based on fuzzy *** object types are the natural extension of current nonfuzzy spatial object types.A fuzzy cell complex structure is defined for modeling fuzzy regions,lines and ***,fuzzy topological relations between these fuzzy spatial objects are formalized based on the 9intersection *** model can be implemented for GIS applications due to its scientific theory basis.

关键词： GIS fuzzy topological relations fuzzy spatial objects

A polarization study of the supernova remnant CTB 80

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Research in Astronomy and Astrophysics 2020年第11期20卷 312-320页

作者： Xiang-Hua Li Xiao-Hui Sun wolfgang Reich Xu-Yang Gao Department of Astronomy Yunnan Universityand Key Laboratory of Astroparticle Physics of Yunnan ProvinceKunming 650091China Max-Planck-Institut fur Radioastronomie Auf dem Hugel 6953121 BonnGermany National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China CAS Key Laboratory of FAST National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China

We present a radio polarization study of the supernova remnant CTB 80 based on images at1420 MHz from the Canadian Galactic Plane Survey,at 2695 MHz from the Effelsberg survey of the Galactic plane and at 4800 MHz from the Sino-Germanλ6 cm polarization survey of the Galactic *** obtained a rotation measure(RM)map using polarization angles at 2695 MHz and 4800 MHz as the polarization percentages are similar at these two *** exhibits a transition from positive values to negative values along one of the shells hosting the pulsar PSR B1951+32 and its pulsar wind *** reason for the change in sign remains *** identified a partial shell structure,which is bright in polarized intensity but weak in total *** structure could be part of CTB 80 or part of a new supernova remnant unrelated to CTB 80.

关键词： ISM supernova remnants ISM magnetic fields polarization techniques polarimetric

Animal models in experimental lung injury: Do we need a consensus conference?

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Acta Pharmacologica Sinica 2003年第12期 163-164页

作者： wolfgang S STROHMAIER,Soheyl BAHRAMI Margaretenstrasse 71/18 1050 Vienna Austria Margaretenstrasse 71/18 1050 Vienna Austria

INTRODUCTIONThe present situation is strikingly paradox: on the one hand, a continuously increasing number of animal models in experimental lung injury continuously reveals new insights into the pathophysiology of lung injury on every level between organ dysfunction and the related molecular triggers. On the other hand, we are con-

关键词： lung on Do we need a consensus conference Animal models in experimental lung injury in

Hepatospheres:Three dimensional cell cultures resemble physiological conditions of the liver

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World Journal of Hepatology 2010年第1期2卷 1-7页

作者： Franziska van Zijl wolfgang Mikulits Department of Medicine I Institute of Cancer ResearchMedical University of Vienna

Studying physiological and pathophysiological mechanisms in the liver on a molecular basis is a challenging *** two dimensional(2D) culture conditions hepatocytes dedifferentiate rapidly by losing metabolic functions and structural ***,inappropriate 2D hepatocellular models hamper studies on the xenobiotic metabolism of the liver which strongly influences drug ***,the lack of effective therapies against hepatocellular carcinoma shows the urgent need for robust models to investigate liver functions in a defined hepatic ***,we summarize and discuss three-dimensional cultures of hepatocytes,herein referred to as hepatospheres,which provide versatile tools to investigate hepatic metabolism,stemness and cancer development.

关键词： Hepatosphere Hepatocyte Tissue engineering 3D culture Microenvironment