Searched for: +
(61 - 80 of 160)

Pages

List view
Grid view
document
Mukolwe, M.M. (author)
Computers are increasingly used in the simulation of natural phenomena such as floods. However, these simulations are based on numerical approximations of equations formalizing our conceptual understanding of flood flows. Thus, model results are intrinsically subject to uncertainty and the use of probabilistic approaches seems more appropriate....
doctoral thesis 2016
document
Verstegen, E. (author)
Conventional hydrological models use a deterministic approach. One could think of it like a black box, having an input, parameters, relations and an output. The parameters are calibrated by comparing the model output with observations of the system response (for example river runoff). When assessing the uncertainty in models the focus is often...
master thesis 2016
document
Rogelis Prada, M.C. (author)
Flood early warning systems are recognized as one of the most effective flood risk management instruments when correctly embedded in comprehensive flood risk management strategies and policies. Many efforts around the world are being put in place to advance the components that determine the effectiveness of a flood early warning system. The aim...
doctoral thesis 2016
document
Bouziotas, D. (author)
During the last years, flood risk assessments at continental and global scales are emerging as useful tools for risk hotspot identification, support for international policy-making and harmonization of strategies for climate change adaptation. The emergence of these models comes to cover the growing demand for integrated, large-scale risk...
master thesis 2016
document
Mol, N. (author)
When tasks need to be performed in remote, potentially inaccessible and/or hostile environments for humans, it is often more convenient to send a robot. Such environments are often only partially known, and therefore not suitable for fully autonomous robots to operate in. In these situations teleoperation can be used, which combines the problem...
master thesis 2016
document
Gharari, S. (author)
Modeling is an essential part of the science of hydrology. Models enable us to formulate what we know and perceive from the real world into a neat package. Rainfall-runoff models are abstract simplifications of how a catchment works. Within the research field of scientific rainfall-runoff modeling, the focus is shifting from performance to...
doctoral thesis 2016
document
Kaniewski, J. (author), Wehner, S.D.C. (author)
The goal of two-party cryptography is to enable two parties, Alice and Bob, to solve common tasks without the need for mutual trust. Examples of such tasks are private access to a database, and secure identification. Quantum communication enables security for all of these problems in the noisy-storage model by sending more signals than the...
journal article 2016
document
Engelen, C.M. (author)
Offshore wind energy is expected to grow in the coming years: future plans for offshore wind farms total more than 98 GW. Financing is needed to realise these plans. Investment decisions partly depend on the uncertainty in energy yield predictions. It is therefore important that these energy yield predictions and their corresponding uncertainty...
master thesis 2015
document
Mergili, M. (author), Marchesini, I. (author), Rossi, M. (author), Alvioli, M. (author), Schneider-Muntau, B. (author), Cardinali, M. (author), Ardizzone, F. (author), Fiorucci, F. (author), Valigi, D. (author), Santangelo, M. (author), Bucci, F. (author), Guzzetti, F. (author)
The GIS-based open source software r.slope.stability computes broad-scale spatial overviews of shallow and deep-seated slope stability through physically-based modelling. We focus on the landslide-prone 90 km2 Collazzone area, central Italy, exploiting a comprehensive set of lithological, geotechnical and landslide inventory data available for...
conference paper 2015
document
Zhang, L. (author), Li, X. (author), Li, D. (author), Zhou, C. (author)
Important engineered slopes are often heavily instrumented and their performance routinely monitored through these instruments. The evaluation of the safety of the slopes based on the monitored information is however a challenge. A systematic method is presented in this paper for evaluating the slope safety by combining multi-source monitoring...
conference paper 2015
document
Shuku, T. (author), Nishimura, S-I. (author), Yoshida, I. (author)
Strong nonlinear behavior such as slope failure involves large uncertainties. Even if we conduct model tests on slope failure under the same test conditions, we cannot reproduce the same results although the linear behavior can be reproduced with relative ease. This kind of uncertainties is well known as “aleatory uncertainty” and they should be...
conference paper 2015
document
Yoshida, I. (author), Shuku, T. (author)
We sometimes encounter a case in which very small change of computation or experiment condition causes the significant difference in response when strong nonlinearity is involved. Slope failure simulation due to gravity by MPS method is performed to examine feature of uncertainty. The simulation results show that the output uncertainty is...
conference paper 2015
document
Marques, S.H. (author), Beer, M. (author), Gomes, A.T. (author), Henriques, A.A. (author)
The first applications of nonprobabilistic interval analysis in geotechnical engineering have been recently explored. In fact, the solution of practical problems in this field often requires judgement based on limited data and interval analysis has become a research area formally motivated by input information characterised by imprecision....
conference paper 2015
document
Venmans, A. (author), Schokker, J. (author), Dambrink, R. (author), Maljers, D. (author), Heerema, J.J. (author)
This paper presents method and first results of a study to quantify and communicate geotechnical risk for highway construction on soft soil and large building pits associated with infrastructural works in the Netherlands. A set of easy-to-read maps will inform the end users, geotechnical consultants at the Dutch Ministry of Infrastructure and...
conference paper 2015
document
Marques, S.H. (author), Beer, M. (author), Gomes, A.T. (author), Henriques, A.A. (author)
The treatment of imprecision attracted continuous interest since the origin of probability as the science of uncertainty. As a matter of fact, probability has been developed to deal with uncertainty and the first argument supporting precise rather than imprecise probability counts on the nature of ordinary measurements. Starting from only a few...
conference paper 2015
document
Zhang, L. (author), Yan, W.M. (author)
Soil slopes are generally unsaturated in which the soil-water characteristic curve (SWCC) plays an important role in its hydro-mechanical response. The commonly used Mohr-Coulomb failure criterion in saturated soil mechanics could be extended to take SWCC into account which is then able to determine the shear strength of unsaturated soil. Like...
conference paper 2015
document
Nadim, F. (author)
This paper presents an overview on how uncertainty and variability of mechanical soil properties are dealt with in offshore site investigation and presents some ideas for utilizing the reliability tools in a more optimal manner for this purpose. Two types of problems are addressed. First, how to extract the maximum amount of information from...
conference paper 2015
document
Mavroeidis, N. (author)
The electricity transmission system, lynchpin of the power system chain, has been recognized to play a significant role in fulfilling policy targets such as high integration levels of renewable energy sources, reduction of CO2 emissions, lower electricity costs and increased security of supply. In the European context, cross-border transmission...
master thesis 2015
document
Kuipéri, F.T. (author)
The amount of electric vehicles is increasing due to measures taken by governments in order to make a, for sustainability, desired switch from the embedded system of combustion vehicles. A barrier for the market adaptation of electric vehicles is the availability of a charging infrastructure. In the Netherlands municipalities are responsible for...
master thesis 2015
document
Yan, K. (author)
Floods are among the most damaging natural hazards and their impacts have been dramatically increasing worldwide over the past decades. As most basins of the world are ungauged or poorly gauged and some measurement networks are continuously under decline, the spatial distribution of flood hazard is often difficult to estimate because the input...
doctoral thesis 2015
Searched for: +
(61 - 80 of 160)

Pages

List view
Grid view