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Risk management maturity of construction projects in the Netherlands

Hoseini, E. (author), Bosch-Rekveldt, M.G.C. (author), Hertogh, M.J.C.M. (author)

Construction projects are bounded with uncertainties and therefore, the occurrence of risks in these projects is unavoidable. Literature confirms that risk management increases the possibility of project success. A Risk Maturity Model (RMM) is a tool, which can help projects measuring the maturity of risk management and plan for risk...

conference paper 2018

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Correlations Between the Thermosphere's Semiannual Density Variations and Infrared Emissions Measured With the SABER Instrument

Weimer, D. R. (author), Mlynczak, M. G. (author), Emmert, J. T. (author), Doornbos, E.N. (author), Sutton, E.H. (author), Hunt, L. A. (author)

This paper presents measurements of the amplitudes and timings of the combined, annual, and semiannual variations of thermospheric neutral density, and a comparison of these density variations with measurements of the infrared emissions from carbon dioxide and nitric oxide in the thermosphere. The density values were obtained from...

journal article 2018

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Recent development and remaining challenges in determining unique bridge scour performance indicators

Gavin, Kenneth (author), Prendergast, L.J. (author), Stipanovič, Irina (author), Škarič−palič, Sandra (author)

There have been significant developments in the area of vibration-based bridge scour monitoring in recent years. Traditional scour monitoring using either visual assessment or diving inspections are now recognised to be very unreliable and highly subjective. There has been a concerted effort to move towards reliable systems capable of either...

journal article 2018

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Reliability assessment for corroded pipelines in series considering length-scale effects

Mustaffa, Z. (author), van Gelder, P.H.A.J.M. (author), Dawotola, A. W. (author), Yu, S. Y. (author), Kim, D. K. (author)

This paper presents a method for assessing the reliability of a corroded pipeline placed in series, with special consideration given to the effect of the length scale imposed by each segment of the pipe. The features of corrosion in different pipe segments are statistically correlated; thus, a failure in one section may impact the adjacent...

journal article 2018

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Life after incubation: The impact of entrepreneurial universities on the long-term performance of their spin-offs

Soetanto, Danny (author), van Geenhuizen, M.S. (author)

The concept of the entrepreneurial university advocates the importance of the economic and societal impacts of universities through, among other things, the creation of spin-offs. With regard to supporting the early growth of spin-offs, literature has consistently emphasized the role of spatial and social proximity to universities in...

journal article 2018

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Evaluation of household pyrolitic stove performance: Effect of bottom air apertures

Pradana, Yano Surya (author), Muhamad Hartono, M. (author), Prasetya, Agus (author)

Nowadays, the global energy crisis has been encouraging the development of renewable energy. Biomass has emerged as one of the most attractive renewable energy sources in Indonesia. Compared with fossil fuels, biomass is available in abundant quantity, renewable, and non-toxic. Pyrolitic, a method to process biomass, was performed in a...

journal article 2018

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Sticky Matters: Jamming and Rigid Cluster Statistics with Attractive Particle Interactions

Koeze, D.J. (author), Tighe, B.P. (author)

While the large majority of theoretical and numerical studies of the jamming transition consider athermal packings of purely repulsive spheres, real complex fluids and soft solids generically display attraction between particles. By studying the statistics of rigid clusters in simulations of soft particles with an attractive shell, we present...

journal article 2018

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De broze gele trui: botstatus van wielrenners

van de Wiel, A. (author), Verstappen, Peter (author)

Although cycling has positive health effects, including improvement of cardiovascular fitness, it does not have a favourable effect on bone health. In professional cyclists, the bone mineral density (BMD) will actually have decreased at the end of an intensive season. As a professional cyclist's career progresses, there will be a further...

journal article 2018

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Alpha radiation dosimetry using Fluorescent Nuclear Track Detectors

Kouwenberg, J.J.M. (author), de Pooter, J. A. (author), Wolterbeek, H.T. (author), Denkova, A.G. (author), bos, A.J.J. (author)

To answer the need for better tools for alpha radiation radiobiology and microdosimetry research, a novel irradiation setup based on a honeycomb collimator, in combination with Fluorescent Nuclear Track Detectors (FNTD) for alpha radiation dosimetry and spectroscopy, was introduced. FNTDs are a novel type of small, crystalline detector that...

journal article 2018

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Controller Independent Software-in-the-Loop Approach to Evaluate Rule-Based Traffic Signal Retiming Strategy by Utilizing Floating Car Data

Sharma, Salil (author), Lussmann, Jonas (author), So, Jaehyun (author)

Floating car data present a cost-effective approach to observing the traffic state. This paper explores whether floating cars can substitute stationary detection devices (e.g., induction loops) for observers within traffic responsive control systems. A rule-based traffic control method at the local intersection level is proposed in this paper...

journal article 2018

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Value of Information Introduced by a Resource Model Updating Framework

Yuksel-Pelk, C. (author), Minnecker, Corinna (author), Soleymani Shishvan, M. (author), Benndorf, J. (author), Buxton, M.W.N. (author)

A primary concern of the mining industry is to meet production targets, which are required and defined by customers. Deviations from these targets, in terms of quality and quantity, highly affect the economical aspect. Recently, an efficient resource model updating framework concept has been proposed aiming for the improvement of raw material...

journal article 2018

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Novel application of PEG/SDS interaction as a wettability modifier of hydrophobic carbonate surfaces

Heydari, Nasim (author), Asgari, Mahdi (author), Shojai Kaveh, N. (author), Fakhroueian, Zahra (author)

Wettability alteration of carbonate reservoirs from oil-wet to water-wet is an important method to increase the efficiency of oil recovery. Interaction between surfactants and polymers can enhance the effectiveness of surfactants in EOR applications. In this study, the interaction of polyethylene glycol (PEG) with an ionic surfactant, sodium...

journal article 2018

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Observations of Time-Dependent Bedform Transformation in Combined Wave-Current Flows

Wengrove, M. E. (author), Foster, D. L. (author), Lippmann, T. C. (author), de Schipper, M.A. (author), Calantoni, J. (author)

Although combined wave-current flows in the nearshore coastal zone are common, there are few observations of bedform response and inherent geometric scaling in combined flows. Our effort presents observations of bedform dynamics that were strongly influenced by waves, currents, and combined wave-current flow at two sampling locations...

journal article 2018

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Capacity Building for Water Management in Peri-Urban Communities, Bangladesh: A Simulation-Gaming Approach

Gomes, S.L. (author), Hermans, L.M. (author), Islam, Kazi Faisal (author), Huda, Sheikh Nazmul (author), Hossain, ATM Zakir (author), Thissen, W.A.H. (author)

Peri-urban areas in the global south are experiencing over-exploitation and contamination of water resources as a result of rapid urbanisation. These problems relate to the ineffectiveness of the underlying institutions in this dynamic, multi-actor context. Institutions need to be considered during problem solving; however, peri-urban...

journal article 2018

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Railway Road Bridge in Novi Sad: Steel tied network arches across the Danube

Bojović, A. (author), Mora, A. (author), Marković, Z. (author), Pavlovic, M. (author), Novaković, N. (author), Spremić, M. (author)

The Railway road bridge in Novi Sad is situated on the international railroad Belgrade-Budapest. The bridge is designed for two railway tracks (with design speed of 160 km/h), two road lanes and two footpaths. The bridge structure consists of four structures: two approach composite bridges at the banks and two steel tied network arch bridges...

journal article 2018

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Multi-machine scheduling lower bounds using decision diagrams

van den Bogaerdt, P. (author), de Weerdt, M.M. (author)

We consider parallel multi-machine scheduling with due times, where a partition of jobs is given where jobs in the same partition have a common release time, possibly precedence constraints, and cannot overlap. A formulation of decision diagrams for this problem greatly improves upon a more natural extension of the state-of-the-art for single...

journal article 2018

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Distributed Analytical Graph Identification

Chepuri, S.P. (author), Coutino, Mario (author), Marques, Antonio G. (author), Leus, G.J.T. (author)

An analytical algebraic approach for distributed network identification is presented in this paper. The information propagation in the network is modeled using a state-space representation. Using the observations recorded at a single node and a known excitation signal, we present algorithms to compute the eigenfrequencies and eigenmodes of...

conference paper 2018

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Creation of aspheric interfaces on an electrowetting liquid lens using surface oscillations

Strauch, M. (author), Somers, P.A.A.M. (author), Bociort, F. (author), Urbach, Paul (author)

A technique to create aspheric surface shapes on commercially available electrowetting liquid lenses is demonstrated. Based on a previously published surface oscillation model a technique using a Hankel transform is proposed and tested experimentally. An alternating actuation voltage is applied to the liquid lens to stimulate surface...

journal article 2018

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Reassessment of requirements for anaerobic xylose fermentation by engineered, non-evolved Saccharomyces cerevisiae strains

Bracher, J.M. (author), Martinez-Rodriguez, Oscar A. (author), Dekker, W.J.C. (author), Verhoeven, M.D. (author), van Maris, A.J.A. (author), Pronk, J.T. (author)

Expression of a heterologous xylose isomerase, deletion of the GRE3 aldose-reductase gene and overexpression of genes encoding xylulokinase (XKS1) and non-oxidative pentose-phosphate-pathway enzymes (RKI1, RPE1, TAL1, TKL1) enables aerobic growth of Saccharomyces cerevisiae on d-xylose. However, literature reports differ on whether anaerobic...

journal article 2018

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Real-time oncological guidance using diffuse reflectance spectroscopy in electrosurgery: The effect of coagulation on tissue discrimination

Adank, Maartje W. (author), Fleischer, J.C. (author), Dankelman, J. (author), Hendriks, B.H.W. (author)

In breast surgery, a lack of knowledge about what is below the tissue surface may lead to positive tumor margins and iatrogenic damage. Diffuse reflectance spectroscopy (DRS) is a spectroscopic technique that can distinguish between healthy and tumor tissue making it a suitable technology for intraoperative guidance. However, because tumor...

journal article 2018