Searched for: collection%253Air
(21 - 40 of 102)

Pages

document
van den Boomen, M. (author), Van der Meulen, Sjoerd (author), Van Ekris, Jonathan (author), Spanjers, Roel (author), Ten Voorde, Olle (author), Mulder, Janwin (author), Blommaart, Peter (author)
<br/>The port of Rotterdam is the largest seaport in Europe. To maintain its position, the harbor will have to anticipate global transitions such as transferring to sustainable energy. Hydrogen is seen as a promising energy carrier; however, future demand is uncertain. The current research investigates decision making under uncertainty and...
journal article 2021
document
van den Boomen, M. (author)
Ageing infrastructures and shortage of financing induce the need for optimising public infrastructure replacements. From an economic perspective, classical net present value comparison is traditionally the method of choice to decide on investments and replacements. The current research observes that typical infrastructure related features make...
doctoral thesis 2020
document
van den Boomen, M. (author), Spaan, M.T.J. (author), Schoenmaker, R. (author), Wolfert, A.R.M. (author)
Managerial flexibility in infrastructure investment and replacement decisions adds value. Real options analysis (ROA) captures this value under uncertain market prices. The concept of ROA is that future unfavourable payoffs can be deferred as soon as more information about market prices becomes available. The popularity of ROA is seen in a...
journal article 2019
document
Vo-Duy, T. (author), Duong-Gia, D. (author), Ho-Huu, V. (author), Nguyen-Thoi, T. (author)
This paper proposes an effective couple method for solving reliability-based multi-objective optimization problems of truss structures with static and dynamic constraints. The proposed coupling method integrates a single-loop deterministic method (SLDM) into the nondominated sorting genetic algorithm II (NSGA-II) algorithm to give the so...
journal article 2019
document
Ciullo, A. (author), de Bruijn, Karin M. (author), Kwakkel, J.H. (author), Klijn, F. (author)
Most alluvial plains in the world are protected by flood defences, for example, embankments, whose primary aim is to reduce the probability of flooding of the protected areas. At the same time, however, the presence of embankments at one area influences hydraulic conditions of downstream areas located on the same river. These hydraulic...
journal article 2019
document
Zhu, Y. (author), Goverde, R.M.P. (author)
Unexpected disruptions occur frequently in railway systems, during which many train services cannot run as scheduled. This paper deals with timetable rescheduling during such disruptions, particularly in the case where all tracks between two stations are blocked for a few hours. In practice, the disruption length is uncertain, and a disruption...
conference paper 2019
document
Reyes, O. Soto (author), Taneja, P. (author), Pielage, B. A. (author), Van Schuylenburg, M. (author)
This paper presents a study carried out to first assess the impact of the Panama Canal expansion (PCE) on selected Caribbean ports, and thereafter, to examine how the ports can adapt in order to seize new opportunities created by the expansion. An applied case of long-term dynamic planning and flexibility in engineering design is presented for a...
conference paper 2019
document
Duvvuru Mohan, V.K. (author), Vardon, P.J. (author), Hicks, M.A. (author), van Gelder, P.H.A.J.M. (author)
Bayesian networks are proposed as a tool to integrate reliability and influential variables relating to the slope stability of an idealized embankment. The site investigation (extent) and slope geometry, as well as the material properties and their spatial variability, are considered within a Bayesian network. The random finite element method ...
conference paper 2019
document
Zhou, C. (author), van Nooijen, R.R.P. (author), Kolechkina, A.G. (author), Hrachowitz, M. (author)
Several commonly-used nonparametric change-point detection methods are analysed in terms of power, ability and accuracy of the estimated change-point location. The analysis is performed with synthetic data for different sample sizes, two types of change and different magnitudes of change. The methods studied are the Pettitt method, a method...
journal article 2019
document
Song, Jingkuan (author), Guo, Yuyu (author), Gao, Lianli (author), Li, Xuelong (author), Hanjalic, A. (author), Shen, Heng Tao (author)
Video captioning, in essential, is a complex natural process, which is affected by various uncertainties stemming from video content, subjective judgment, and so on. In this paper, we build on the recent progress in using encoder-decoder framework for video captioning and address what we find to be a critical deficiency of the existing...
journal article 2018
document
Ertsen, M.W. (author)
Dealing with uncertainty is key in socio-hydrological analysis. As such, thinking through what uncertainties mean for whom and when is key. This discussion contribution introduces three issues related to defining uncertainties. The first issue deals with the problem of defining uncertainty as a given external reality. The second issue deals with...
journal article 2018
document
Meissner, F.V.M. (author)
The emergent literature on mainstreaming immigrant integration frequently references the term superdiversity. The diversification of migration is put forward as one rational for implementing measures to support immigrant integration across policy fields and across levels of policy making. In this paper I reflect on those assertions and argue...
working paper 2018
document
Taneja, P. (author), Vellinga, T. (author)
In the present turbulent environment, adaptability and robustness belong under the overarching definition of sustainability. Sustainable infrastructures should not only achieve economic, environmental, and social objectives, but should be robust and adaptable under uncertainty. This paper examines the current guidelines for port development and...
conference paper 2018
document
Leijten, M. (author)
Complex underground infrastructure construction projects tend to develop in a state of “bounded manageability”. Various types of uncertainties are inherent to these projects and put the project manager in front of serious challenges, risking budget overruns, delays and sometimes even technical failure. Managing such a project is a matter of...
doctoral thesis 2017
document
Halim, R.A. (author)
Uncertainties in future global trade flows due to changes in trade agreements, transport technologies or sustainability policies, will affect the patterns of global freight transport and, as a consequence, also affect the demand for major freight transport infrastructures such as ports and hinterland networks. Policy makers face the challenge of...
doctoral thesis 2017
document
van der Spek, J.E. (author), Bakker, M. (author)
The influence of the length of the calibration period and observation frequency on the predictive uncertainty in time series modeling of groundwater dynamics is investigated. Studied series are from deltaic regions with predominantly shallow groundwater tables in a temperate maritime climate where heads vary due to precipitation and...
journal article 2017
document
Kroon, J. (author), de Schipper, M.A. (author), den Heijer, C. (author), Aarninkhof, S.G.J. (author), van Gelder, P.H.A.J.M. (author)
In the present time of sea-level rise and climate change a global shift has occurred toward sandy coastal protection measures and Building with Nature. These type of protection measures impose extra uncertainty on the instantaneous state of the coastal system over time for which present deterministic forecasting techniques are not capable of...
conference paper 2017
document
Price, R.A. (author), Wrigley, Cara (author), Matthews, Judy (author)
Design-led innovation (DLI) is a framework with particular focus on developing design capability. Implementation of DLI has been observed to positively influence firm innovation performance. As the framework is of relative infancy, there is opportunity to learn from and integrate methods and practice from other fields to strengthen the...
conference paper 2017
document
Yuan, Jun (author), Vardon, P.J. (author), Hicks, M.A. (author), Hart, J (author), Fokker, PA (author)
OPERA-PU-TUD321b<br/>Radioactive substances and ionizing radiation are used in medicine, industry, agriculture, re- search, education and electricity production. This generates radioactive waste. In the Neth- erlands, this waste is collected, treated and stored by COVRA (Centrale Organisatie Voor Radioactief Afval). After interim storage for a...
report 2017
document
Kolen, B. (author), Zethof, Marit (author), de Bruijn, Karin (author), Hazenoot, Evert (author)
The central issue for authorities (as well as the public) is how and when to respond to forecasted extreme water levels on rivers, lakes and along the coast and large-scale flooding is an actual risk. The decision-making process is influenced by contradicting information, overloads and gaps in information, rumours, uncertainties in forecasts,...
abstract 2017
Searched for: collection%253Air
(21 - 40 of 102)

Pages