document

High-precision positioning of radar scatterers

Dheenathayalan, P. (author), Small, D. (author), Schubert, A. (author), Hanssen, R.F. (author)

Remote sensing radar satellites cover wide areas and provide spatially dense measurements, with millions of scatterers. Knowledge of the precise position of each radar scatterer is essential to identify the corresponding object and interpret the estimated deformation. The absolute position accuracy of synthetic aperture radar (SAR) scatterers in...

journal article 2016

document

Phase-Separation Characteristics of Bitumen and their Relation to Damage-Healing

Nahar, S.N. (author)

During the service life of flexible asphalt pavements, asphalt concrete degrades due to traffic loading and environmental conditions like temperature, rain, oxidation, ultraviolet-radiation from the sun. All these environmental factors have adverse effects on the performance of bitumen, which is the binder of asphalt concrete. They are known to...

doctoral thesis 2016

document

Hydropolitics and Conflict Management in Transboundary River Basins

Mianabadi, H. (author)

This thesis set out to develop methodologies that promote cooperation, peace and development instead of conflict and violence in transboundary water resources management. In particular, its objectives were the following: o To examine and understand the complexity of water systems and water conflict management o To investigate factors affecting...

doctoral thesis 2016

document

Comparison of Particle-Associated Bacteria from a Drinking Water Treatment Plant and Distribution Reservoirs with Different Water Sources

Liu, G. (author), Ling, F.Q. (author), Van der Mark, E.J. (author), Zhang, X.D. (author), Knezev, A. (author), Verberk, J.Q.J.C. (author), Van der Meer, W.G.J. (author), Medema, G.J. (author), Liu, W.T. (author), Van Dijk, J.C. (author)

This study assessed the characteristics of and changes in the suspended particles and the associated bacteria in an unchlorinated drinking water distribution system and its reservoirs with different water sources. The results show that particle-associated bacteria (PAB) were present at a level of 0.8–4.5?×?103 cells ml?1 with a biological...

journal article 2016

document

Foam Flow Experiments. I. Estimation of the Bubble generation-Coalescence Function

Thorat, R.R. (author), Bruining, H. (author)

Gas injection leads to foam formation in porous media in the presence of surfactant solutions, which is used for flow diversion and enhanced oil recovery. We present here laboratory experiments of co-injecting nitrogen and sodium C14?16 alpha olefin sulfonate with two concentrations: 20× the critical micelle concentration (CMC) in an...

journal article 2016

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Manual Hydraulic Structures

Molenaar, W.F. (author), Voorendt, M.Z. (author)

This manual is the result of group work and origins in Dutch lecture notes that have been used since long time. Amongst the employees of the Hydraulic Engineering Department that contributed to this work are dr.ir. S. van Baars, ir.K.G.Bezuijen, ir.G.P.Bourguignon, prof.ir.A.Glerum, dr.ir.P.A.Kolkman, ir. H.K.T. Kuijper, ir. H.G. Voortman and...

lecture notes 2016

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Hydraulic Structures: Caissons

Voorendt, M.Z. (author), Molenaar, W.F. (author), Bezuyen, K.G. (author)

These lecture notes on caissons are part of the study material belonging to the course 'Hydraulic Structures 1' (code CTB3355), part of the Bachelor of Science education and the Hydraulic Engineering track of the Master of Science education for civil engineering students at Delft University of Technology. Many of the principles and engineering...

lecture notes 2016

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Measurements of imperfections in spiral-welded tubes

van Es, S.H.J. (author), Gresnigt, A.M. (author)

report 2016

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Four point bending tests on spiral welded tubes

van Es, S.H.J. (author), Gresnigt, A.M. (author)

report 2016

document

Effect of the Longitudinal Contact Location on Vehicle Dynamics Simulation

Burgelman, N. (author), Li, Z. (author), Dollevoet, R. (author)

This paper investigates the effect of the calculation of the longitudinal location of a wheel rail contact point on the wheelset’s motion in a vehicle dynamic simulation. All current vehicle dynamic software programs assume that the contact between wheel and rail takes place in the vertical plane through the wheelset’s rolling axis. However,...

journal article 2016

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The Influence of Cracks on the Durability and Service Life of Reinforced Concrete Structures in relation to Chloride-Induced Corrosion: A Look from a Different Perspective

Blagojevi?, A. (author)

The service life of concrete structures can be significantly shortened when corrosion of steel reinforcement occurs, especially in a marine environment and in structures exposed to de-icing salts. The influence of load- or deformation-induced cracks on corrosion progress is an important issue which was studied in this research in relation to the...

doctoral thesis 2016

document

Shower heat exchanger: Reuse of energy from heated drinking water for CO2 reduction

Deng, Z. (author), Mol, S. (author), Van der Hoek, J.P. (author)

The heating of drinking water in households contributes significantly to the emission of greenhouse gases. As a water utility aiming to operate at a climate neutral level by 2020, Waternet needs to reduce its CO2 emission by 53?kton?yr?1. To contribute to this ambition, a pilot project was carried out in Uilenstede, Amstelveen, the Netherlands,...

journal article 2016

document

Assessment Methods for Structural and Hydraulic Properties of Concrete Sewer Pipes

Stanic, N. (author)

Asset management is a tool for maintaining the required level of serviceability of urban drainage systems, which are costly to construct and in some cases even more costly to replace. The required asset management effort to achieve a certain level of service is unclear due to a limited knowledge on sewer failure mechanisms and due to scarcity of...

doctoral thesis 2016

document

Analysis on Adhesively-Bonded Joints of FRP-steel Composite Bridge under Combined Loading: Arcan Test Study and Numerical Modeling

Jiang, X. (author), Qiang, X. (author), Kolstein, M.H. (author), Bijlaard, F.S.K. (author)

The research presented in this paper is an experimental study and numerical analysis on mechanical behavior of the adhesively-bonded joint between FRP sandwich bridge deck and steel girder. Generally, there are three typical stress states in the adhesively-bonded joint: shear stress, tensile stress, and combination of both. To realize these...

journal article 2016

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Impact of Two Plumes' Interaction on Submarine Melting of Tidewater Glaciers: A Laboratory Study

Cenedese, C. (author), Gatto, V.M. (author)

Idealized laboratory experiments investigate the glacier–ocean boundary dynamics near a vertical glacier in a two-layer stratified fluid. Discharge of meltwater runoff at the base of the glacier (subglacial discharge) enhances submarine melting. In the laboratory, the effect of multiple sources of subglacial discharge is simulated by introducing...

journal article 2016

document

Process for the production of cementitious material

Jonkers, H.M. (author), Mors, R.M. (author)

The invention provides a process for the production of a cementitious material, comprising mixing cement starting materials, a healing agent and a fibrous reinforcing material, wherein the healing agent comprises bacterial material, and wherein the fibrous reinforcing material comprises a biodegradable polymer, having an average molecular weight...

patent 2016

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Practical considerations for enhanced-resolution coil-wrapped Distributed Temperature Sensing (discussion)

Hilgersom, K.P. (author), Van Emmerik, T.H.M. (author), Solcerova, A. (author), Berghuijs, W.R. (author), Selker, J.S. (author), Van de Giesen, N.C. (author)

Fibre optic Distributed Temperature Sensing (DTS) is widely applied in earth sciences. Many applications require a spatial resolution higher than the provided by the DTS instrument. Measurements at these higher resolutions can be achieved with a fibre optic cable helically wrapped on a cylinder. The effect of the probe construction, such as its...

journal article 2016

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Scenarios about development and implications of automated vehicles in the Netherlands

Milakis, D. (author), Snelder, M. (author), Van Arem, B. (author), Van Wee, G.P. (author), Homem De Almeida Rodriguez Correia, G. (author)

Automated driving technology is emerging. Yet, less is known about when automated vehicles will hit the market, how penetration rates will evolve and to what extent this new transportation technology will affect transportation demand and planning. This study identified through scenario analysis plausible future development paths of automated...

conference paper 2016

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On the role of model structure in hydrological modeling: Understanding models

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

Capillary-Driven Transport of Dissolved Salt to the Drying Zone During CO2 Injection in Homogeneous and Layered Porous Media

Roels, S.M. (author), El Chatib, N. (author), Nicolaides, C. (author), Zitha, P.L.J. (author)

A major challenge of CO2 injection into saline aquifers is the risk of formation clogging due to salt precipitation. Capillary-driven flow of brine can provide a continuous transport of dissolved salt toward the dry zone around the injection well where it ultimately precipitates due to evaporation. In this study, core flooding experiments were...

journal article 2016