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Physical Modelling and Human Survival in Pyroclastic Flows
Baxter, P.; Neri, A.; Todesco, M. - In: Natural Hazards 17 (1998) 2, pp. 163-176
Volcanic eruptions increasingly present catastrophic natural risks with hundreds of millions of people now living in areas of active volcanism and major conurbations around active eruptive centres. Interdisciplinary studies in disaster reduction have an important role in volcanic emergency...
Persistent link: https://www.econbiz.de/10010846467
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Volcanic hazards zonation of the Nevado de Toluca Volcano, Central Mexico
Quesada, José; Pozzo, Ana Lillian Martin Del; Blanco, … - In: Natural Hazards 41 (2007) 1, pp. 159-180
Nevado de Toluca Volcano (NTV), located in central Mexico, is a large stratovolcano, with an explosive history. The … and expansion have increased the potential risk in case of a reactivation of the volcano. As part of a study to assess …
Persistent link: https://www.econbiz.de/10010996629
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DEM simulation of small particles clogging in the packing of large beads
Remond, S. - In: Physica A: Statistical Mechanics and its Applications 389 (2010) 21, pp. 4485-4496
The percolation of small particles through a periodic random loose packing of large beads is studied numerically with the Distinct Element Method. The representativity of periodic mono-sized sphere packing of varying system size was first studied by comparing their pore size distributions and...
Persistent link: https://www.econbiz.de/10011060242
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Discrete element modeling of the microstructure of fine particle agglomerates in sheared dilute suspension
Kimbonguila Manounou, A.; Rémond, S. - In: Physica A: Statistical Mechanics and its Applications 412 (2014) C, pp. 66-83
The fragmentation and restructuring under shear of agglomerates of fine mineral particles are studied with the Distinct Element Method. The model used takes into account contact forces, van der Waals forces, and hydrodynamic forces computed with the free-draining approximation. A loose initial...
Persistent link: https://www.econbiz.de/10010906979
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2011 Evaluability Review of Bank Projects Title: Revisión de la evaluabilidad de los proyectos del Banco de 2011
Inter-American Development Bank; Inter-American … - 2012
particular focus on project evaluability. The first pilot exercise to validate the Development Effectiveness Matrix (DEM) of … randomly selected projects began in October 2011. The objective was to provide suggestions for improving the DEM as a tool for … assessing evaluability. In validating the DEM for Sovereign-Guaranteed (SG) loans, results indicate significant progress in SG …
Persistent link: https://www.econbiz.de/10010673497
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Failure process of masonry buildings during earthquake and associated casualty risk evaluation
Furukawa, Aiko; Ohta, Yutaka - In: Natural Hazards 49 (2009) 1, pp. 25-51
Collapse of masonry structures during an earthquake is analyzed using the three-dimensional distinct element method (3D-DEM …) code developed by the first author. The DEM is a numerical analysis technique, in which positions of elements are …, the validity of the developed 3D-DEM code is confirmed by comparing analytical results with static experimental results of …
Persistent link: https://www.econbiz.de/10010758879
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Potential of Satellite Remote Sensing and GIS for Landslide Hazard Assessment in Southern Kyrgyzstan (Central Asia)
Roessner, Sigrid; Wetzel, Hans-Ulrich; Kaufmann, Hermann; … - In: Natural Hazards 35 (2005) 3, pp. 395-416
Big landslides are one of the main natural hazards in Kyrgyzstan, which are concentrated in the foothills of the high mountain ranges along the Eastern rim of the Fergana Basin. Because of the high number of landslides and their occurrence over large areas there is a strong need for effective...
Persistent link: https://www.econbiz.de/10010759014
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Wind speed spatial estimation for energy planning in Sicily: A neural kriging application
Cellura, M.; Cirrincione, G.; Marvuglia, A.; Miraoui, A. - In: Renewable Energy 33 (2008) 6, pp. 1251-1266
One of the first steps for the exploitation of any energy source is necessarily represented by its estimation and mapping at the aim of identifying the most suitable areas in terms of energy potential. In the field of renewable energies this is often a very difficult task, because the energy...
Persistent link: https://www.econbiz.de/10010805358
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GPS/terrestrial 3D laser scanner combined monitoring technology for coal mining subsidence: a case study of a coal mining area in Hebei, China
Zhou, Dawei; Wu, Kan; Chen, Ranli; Li, Liang - In: Natural Hazards 70 (2014) 2, pp. 1197-1208
. Ground surface digital elevation model (DEM) of the mining area is established by using TLS point cloud data, and the ground … DEM and subsidence basin can provide the fundamental data for the reconstruction of ecological environment in the mining …
Persistent link: https://www.econbiz.de/10010846749
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Estimation of Soil Erosion and Sediment Yield Using GIS at Catchment Scale
Bhattarai, Rabin; Dutta, Dushmata - In: Water Resources Management 21 (2007) 10, pp. 1635-1647
catchment outlet is represented by the topographical characteristics of the cells. The effect of DEM resolution on sediment … yield is analyzed using two different resolutions of DEM. The spatial discretization of the catchment and derivation of the …
Persistent link: https://www.econbiz.de/10010847420