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Roy, S. (author), van Deursen, A. (author), Hermans, F.F.J. (author)Automatically inferred invariants have been found to be successful in detecting regression faults in traditional software, but their application has not been explored in the context of spreadsheets. In this paper, we investigate the effectiveness of automatically inferred invariants in detecting regression faults in spreadsheets. We conduct an...conference paper 2018
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Hermans, M.H. (author), Veldhuis, J.H. (author), van Zoest, S.P. (author)Voor u ligt een handreiking om de professionaliteit van de opdrachtgevende rol in uw organisatie te bepalen en de gewenste ontwikkelingen hierin te bespreken. De handreiking is gebaseerd op het instrument ‘Maturity Model Professioneel Publiek Opdrachtgeven’ van de leerstoel Publiek Opdrachtgeverschap in de bouw aan de TU Delft. Het maturity...report 2018
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Eftekharimilani, P. (author), Gao, H. (author), Huizenga, R.M. (author), van der Aa, EM (author), Amirthalingam, M. (author), Richardson, I.M. (author), Hermans, M.J.M. (author)Advanced high strength steels (AHSS) are increasingly used in automotive industry; thousands of resistance spot welds are applied to car body-in-white. High alloying levels of AHSS result in lower weldability. Residual stresses play an essential role on the formation of defects and the mechanical performance of the weld. An electrical-thermal...conference paper 2018
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Agarwal, G. (author), Gao, H. (author), Amirthalingam, M. (author), Richardson, I.M. (author), Hermans, M.J.M. (author)Advanced high-strength steels (AHSS), which are increasingly used in the automotive industry, meet many functional requirements such as high strength and crash resistance. Some of these steels contain high amounts of alloying elements, which are required to achieve the necessary mechanical properties, but render these steels susceptible to weld...conference paper 2018
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Willems, Thijs (author), Kuitert, L. (author), van Marrewijk, Alfons (author), Volker, L. (author), Hermans, M.H. (author)Successfully sharing knowledge through interactions between projects and the organization is, especially in a situation of changing work processes, an important capability for organizations to learn. The aim of this study is to gain insights into the process of project-based learning, specifically by studying how project-based learning relates...conference paper 2018
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Jansen, B. (author), Hermans, F.F.J. (author)The use of spreadsheets in industry is widespread. Companies base decisions on information coming from spreadsheets. Unfortunately, spreadsheets are error-prone and this increases the risk that companies base their decisions on inaccurate information, which can lead to incorrect decisions and loss of money. In general, spreadsheet research is...conference paper 2018
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Tambouris, Efthimios (author), Kalampokis, Evangelos (author), Janssen, M.F.W.H.A. (author), Matheus, R. (author), Hermans, Paul (author), Kalvet, Tarmo (author)The number of Open Statistical Data available for reuse is rapidly increasing. Linked open data technology enables easy reuse and linking of data residing in different locations in a simple and straightforward manner. Yet, many people are not familiar with the technology standards and tools for making use of open statistical data. In this...conference paper 2018
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Hermans, F.F.J. (author), Swidan, A.A.S. (author), Aivaloglou, E.A. (author), Smit, M.I.E. (author)When teaching novices programming, misconceptions can occur. Misconception are incorrect beliefs about certain programming concept. For example, some novices think that a variable can hold multiple values, in the case of two consecutive assignment statements, such as x = 5; x = 7. While explaining variables introductory materials often use...conference paper 2018
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Kuitert, L. (author), Volker, L. (author), Hermans, M.H. (author)In today’s construction industry we witness an increase in public private collaboration in the delivery of public goods. New public private structures affect the traditional notion of accountability, bringing along a strong emphasis on performance and outcome. By transferring operational responsibility to the market parties in public private...conference paper 2018
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Kuitert, L. (author), Willems, Thijs (author), Volker, L. (author), Hermans, M.H. (author), van Marrewijk, Alfons (author)In complex product system industries such as construction, innovation and explorative intra-project learning are critical aspects for developing and delivering complex and customized products. Some research has, however, demonstrated that it is difficult to utilize learning from development projects in the permanent organisation. Hence, the...conference paper 2018
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Agarwal, G. (author), Amirthalingam, M. (author), Moon, S. C. (author), Dippenaar, R. J. (author), Richardson, I.M. (author), Hermans, M.J.M. (author)Sufficient liquid feeding under constrained solidification conditions like, those experienced in welding and casting, is vital to avoid solidification cracking. We present the results of unique in-situ experimental observations of liquid feeding in a solidifying steel melt pool. Liquid feeding was observed in the inter-cellular regions during...journal article 2018
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Agarwal, G. (author), Gao, H. (author), Amirthalingam, M. (author), Hermans, M.J.M. (author)In situ strain evolution during laser welding has been measured by means of digital image correlation to assess the susceptibility of an advanced high strength automotive steel to solidification cracking. A novel method realised using auxiliary illumination and optical narrow bandpass filter allowed strain measurements as close as 1.5 mm from...journal article 2018
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Hermans, F.F.J. (author), Swidan, A.A.S. (author), Aivaloglou, E.A. (author)When children learn to read, they almost invariably start with oral reading: reading the words and sentences out loud. Experiments have shown that when novices read text aloud, their comprehension is better then when reading in silence. This is attributed to the fact that reading aloud focuses the child’s attention to the text. We hypothesize...conference paper 2018
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Eftekharimilani, P. (author), Huizenga, R.M. (author), Kim Lee, B.N. (author), Bernasconi, A. (author), Hermans, M.J.M. (author)In this paper, we describe the effects of mechanical loading on bcc-to-bcc phase transformations of an Advanced High Strength Steel during cooling. In-situ synchrotron diffraction was employed to measure time–temperature–load diffraction patterns. Calculations were made of the volume fractions of the phases, the transformation kinetics, and...journal article 2018
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Gao, H. (author), Agarwal, G. (author), Amirthalingam, M. (author), Hermans, M.J.M. (author), Richardson, I.M. (author)Hot cracking during laser welding of Transformation Induce Plasticity (TRIP) steel at the edges of steel flanges can be a problem. In this study, modified hot cracking tests were performed by welding on a single-side clamped specimen at various distances from the free edge, while the heat input and external constraints remained constant. In situ...journal article 2018
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Jansen, B. (author), Hermans, F.F.J. (author), Tazelaar, Edwin (author)The use of spreadsheets in industry is widespread and the information that they provide is often used for decisions. Research has shown that spreadsheets are error-prone, leading to the risk that decisions are made on incorrect information. Software Evolution is a well-researched topic and the results have proven to support developers in...conference paper 2018
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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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Eftekharimilani, P. (author), van der Aa, E.M. (author), Petrov, R.H. (author), Hermans, M.J.M. (author), Richardson, I.M. (author)The effect of an automotive paint bake (PB) thermal cycle on the microstructural evolution and the mechanical properties of resistance spot welded advanced high strength steel is presented in this work. Mechanical behavior of the heat-treated welds reveals an increase in maximum cross-tension strength, displacement and subsequently energy...journal article 2018
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Hermans, T. H.J. (author), van der Wal, W. (author), Broerse, D.B.T. (author)In regions undergoing glacial isostatic adjustment present-day horizontal surface motion is observed to point mostly, but not always, away from the former ice load. To interpret these observations, we investigate the direction of horizontal velocities using glacial isostatic adjustment models. The direction is controlled by the opposing...journal article 2018
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Agarwal, G. (author), Gao, H. (author), Amirthalingam, M. (author), Hermans, M.J.M. (author)Susceptibility to weld solidification cracking in transformation-induced plasticity steel sheets was studied using a modified standard hot cracking test used in the automotive industry. To vary the amount of self-restraint, bead-on-plate laser welding was carried out on a single-sided clamped specimen at increasing distances from the free...journal article 2018