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Werker, A. (author), Pei, R. (author), Kim, Kevin (author), Moretto, Giulia (author), Estevez Alonso, A. (author), Vermeer, C.M. (author), Arcos-Hernandez, Monica (author), Dijkstra, Jelmer (author), de Vries, Erik (author)Past studies have repeatedly demonstrated the technical feasibility to produce polyhydroxyalkanoate (PHA) using bacterial biomass of mixed microbial cultures (MMCs). Commercial quality grades of poly(3-hydroxybutyrate-co-3-hydroxyvalerate), PHBV, can be produced with control of average monomer composition. However, demonstration of PHBV...journal article 2023
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Gregory Chen, X. (author), van der Vaart, A.W. (author)A common task in quality control is to determine a control limit for a product at the time of release that incorporates its risk of degradation over time. Such a limit for a given quality measurement will be based on empirical stability data, the intended shelf life of the product and the stability specification. The task is particularly...journal article 2022
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Aydin, B.E. (author), Oude Essink, Gualbert H.P. (author), Delsman, Joost R. (author), van de Giesen, N.C. (author), Abraham, E. (author)A significant increase in surface water salinization in low-lying deltas is expected globally due to saline groundwater exfiltration driven by rising sea levels and decreasing freshwater availability. Sustaining fresh water-dependent agriculture in such areas will entail an increased demand for fresh water flushing. Unfortunately, the...journal article 2022
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Rajasekhar, Rajesh (author)The quality of a product is an important factor in the manufacturing industry. Maintaining a standard product quality ensures customer satisfaction and loyalty to the brand and reduces the risk and cost involved in the production. A system that reviews the product quality in production is the quality control system. Quality control ensures that...master thesis 2021
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van Putten, R. (author), Uslamin, E. (author), Pidko, E.A. (author)This invention describes an apparatus that enables the automated removal of small samples from fluids such as those encountered in (bio-)chemical reactors. These samples can then be used for, e.g., kinetic analysis and quality control applications. The system was explicitly designed to be compatible with harsh and aggressive reaction conditions...journal article 2021
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Van Loon, Joren (author), Veelaert, Lore (author), van Goethem, Sander (author), Watts, Regan (author), Verwulgen, Stijn (author), Verlinden, J.C. (author), Du Bois, Els (author)The current COVID-19 pandemic has resulted in an immense and unforeseen increase in demand for personal protective equipment (PPE) for healthcare workers worldwide. Amongst other products, respirator masks are crucial to protect the users against transmission of the virus. Decontamination and reuse of the existing stock could be a solution to...journal article 2021
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de Vos, B. (author), Parsa, Javad (author), Abdulrazaq, Zaynab (author), Teeuwisse, Wouter M. (author), Van Speybroeck, Camille D.E. (author), de Gans, D.H. (author), Remis, R.F. (author), O’Reilly, Tom (author), Webb, A. (author)Low-field permanent magnet-based MRI systems are finding increasing use in portable, sustainable and point-of-care applications. In order to maximize performance while minimizing cost many components of such a system should ideally be designed specifically for low frequency operation. In this paper we describe recent developments in...journal article 2021
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Chen, Jieyu (author), Saunders, K.R. (author), Whan, Kirien (author)Wind observations collected at citizen weather stations (CWSs) could be an invaluable resource in climate and meteorology studies, yet these observations are underutilised because scientists do not have confidence in their quality. These wind speed observations have systematic biases, likely caused by improper instrumentation and station...journal article 2021
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Reinoso Rondinel, R. (author), Schleiss, M.A. (author)Conventionally, Micro Rain Radars (MRRs) have been used as a tool to calibrate reflectivity from weather radars, estimate the relation between rainfall rate and reflectivity, and study microphysical processes in precipitation. However, limited attention has been given to the reliability of the retrieved drop size distributions (DSDs) from...journal article 2021
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Guatame-Garcia, Adriana (author), Buxton, M.W.N. (author)In response to the growing demand for sustainable products and services, the kaolin calcination industry is developing practices that optimise the use of resources. The main challenges include more efficient use of raw materials and a reduction in the energy consumed by the calcination furnace. An opportunity to achieve this lies in the...journal article 2020
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Truong-Hong, Linh (author), Lindenbergh, R.C. (author)This paper proposes a framework to automatic extract structural elements of reinforced concrete buildings from laser scanning data, which can be used in dimensional quality control and surface defect identification. The framework deploys both spatial information of a point cloud and contextual knowledge of building structures to extract the...journal article 2020
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Figueiredo, Stefan C. (author), van Overmeir, A.L. (author), Nefs, Karsten (author), Schlangen, E. (author), Salet, Theo A. M. (author), Šavija, B. (author), Suiker, Akke S. J. (author), Bos, Freek P. (author)Over the past few years, several studies have shown the potential of three-dimensional concrete printing (3DCP) for applications in building and civil engineering. However, only a few studies have compared the properties of the fresh printing material and the quality of the printed elements from different printing facilities. Variations in the...conference paper 2020
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Haak, Daan (author)An increasingly dynamic and competitive market forces MRO businesses to improve on efficiency and sustainability of remanufacturing processes. Present research focus on current process states and recovery, improvement and control of process phases beyond initial design without inclusion of return quality. This research addresses a method for...master thesis 2019
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Aydin, B.E. (author), Rutten, M.M. (author), Abraham, E. (author)Surface water salinization in deltaic areas due to saline groundwater exfiltration is an important issue. Fresh water diverted from the rivers is used for flushing the canals and the ditches in coastal areas to remove the low quality saline surface water mixed with saline groundwater. Worldwide, deltaic areas are under stress due to climate...conference paper 2018
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Hutten, Rinske (author)Flooding in cities, known as Urban Pluvial Flooding (UPF), causes disruption of society, damage to cities and inconvenience for people. Cities are expected to become more vulnerable to UPF due to more frequent and more intense extreme rainfall events with high spatial variability as result of climate change. Additionally increasing urbanisation...master thesis 2018
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Imparato, D. (author), Teunissen, P.J.G. (author), Tiberius, C.C.J.M. (author)The Minimal Detectable Bias (MDB) is an important diagnostic tool in data quality control. The MDB is traditionally computed for the case of testing the null hypothesis against a single alternative hypothesis. In the actual practice of statistical testing and data quality control, however, multiple alternative hypotheses are considered. We...journal article 2018
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Viviani, C. (author), Arezes, P.M. (author), Bragança, S. (author), Molenbroek, J.F.M. (author), Dianat, I. (author), Castellucci, HI (author)Anthropometric surveys are the most common method of gathering human morphometric data, used to design clothing, products and workspaces. The aim of this paper was to assess how current peer reviewed literature addresses the accuracy, reliability and precision regarding manual anthropometric surveys applied to adult working populations in the...journal article 2018
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Meijer, F.M. (author)Requirements on the sustainable quality (e.g. energy performance) of new and existing buildings are one of the pillars building regulatory systems of European countries are founded on. The influence of EU policy goals and contents of EU Directives in the energy regulations of the Member States is clearly noticeable. The European Union has set...conference paper 2017
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Spruit, R. (author), van Tol, A.F. (author), Broere, W. (author), Doornenbal, Pieter (author), Hopman, Victor (author)Distributed temperature sensing (DTS) can be used to monitor the production process of diaphragm walls. DTS is able to differentiate between already present or fresh bentonite suspensions during refreshing of the bentonite slurry in the trench. During concrete casting, DTS is able to differentiate between the bentonite suspension and concrete...journal article 2017
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Veer, F.A. (author), Bristogianni, T. (author), Baardolf, G. (author)Spontaneous failures in thermally toughened glass are frequently reported, although the actual percentage is quite small, suppliers in the Netherlands reporting one or two cases a year while thousands of tempered panels are supplied. These cases are rarely investigated in the Netherlands because the broken thermally toughened glass is usually...journal article 2017