Searched for: subject%3A%22qualities%22
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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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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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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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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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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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Meijer, F.M. (author), Visscher, H.J. (author)
Demands on the energy performance of new and existing buildings hold a prominent place in the regulations of all European countries. The influence of EU policy goals and contents of EU Directives reverberate strongly in the energy regulations. Goals set by the European Union are that all newly built constructions must have a zero energy level by...
conference paper 2016
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Spruit, R. (author), Van Tol, F. (author), Broere, W. (author)
If a calamity with a retaining wall occurs, the impact on surrounding buildings and infrastructure is at least an order of magnitude more severe than without the calamity. In 2005 and 2006 major leaks in the retaining walls of underground stations in Amsterdam and Rotterdam occurred. After these cases had been thoroughly studied it was concluded...
conference paper 2015
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Spruit, R. (author), Van Tol, F. (author), Broere, W. (author)
If a calamity with a retaining wall occurs, the impact on surrounding buildings and infrastructure is at least an order of magnitude more severe than without the calamity. In 2005 and 2006 major leaks in the retaining walls of underground stations in Amsterdam and Rotterdam occurred. After these cases had been thoroughly studied it was concluded...
conference paper 2015
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Hopman, V. (author), Hölscher, P. (author)
A test field with 20 cast in-situ piles has been built. Flaws (necks, bulges and cracks) are built in. Existing and newly developed detecting methods have been tested. They show interpretable signals and also some challenges to improve the results. The final phase e.g. excavation of a representative number of piles will lead to final conclusions...
conference paper 2015
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Lotfi, S. (author), Di Maio, F. (author), Xia, H. (author), Serranti, S. (author), Palmieri, R. (author), Bonifazi, G. (author)
One of the main challenging problems associated with the use of Recycled Aggregates (RA) is the level of mixed contaminants. For utilizing RA in high-grade applications, it is essential to monitor and minimise the content of the pollutants. To this extent the C2CA concrete recycling process investigates a combination of smart demolition,...
conference paper 2015
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Bach, D. (author)
Bored piles are a type of deep foundations which have been and are being widely used in construction engineering such as high-rise buildings, bridges, jetties, and so on. Although bored piles have remarkable advantages over driven piles, the quality of bored piles is frequently affected by many causes of imperfection, which mainly come from the...
doctoral thesis 2014
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Naworyta, W. (author), Sypniowski, S. (author), Benndorf, J. (author)
Using the example of a selected part of one lignite deposit, this study analyzes the problem of quality control of the mined lignite stream at the stage of operational planning. A single quality parameter of the deposit was selected for analysis – the calorific value of raw lignite Qi r . Based on the drill holes from the exploitation phase,...
journal article 2013
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Sanaee, S.A. (author), Bakker, M.C.M. (author)
Ultrasound imaging techniques are proposed for measuring the shape and thickness of immersed waste particles (10-20 mm size) using a linear sensor array from a fixed position. For these purposes both the front and back surface of a particle needs to be reconstructed. Raw ultrasound pulse-echo and plane wave datasets and different imaging...
conference paper 2012
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Diermanse, F.L.M. (author)
report 2005
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Lee, G.E.M. van der (author), Duel, H. (author), Groot, S. (author), Aarts, H. (author), Pouwels, R. (author)
report 2000
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Dijkzeul, J.C.M. (author)
report 1999
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Goede, E.D. de (author), Stelling, G.S. (author)
report 1994
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Uittenbogaard, R.E. (author)
report 1992
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Dekker, G.J. (author)
Modern commercial transport aircraft contain digital avionics systems for more and more safety critical functions. The reliability and safety of those new systems depend on the hardware reliability and on the reliability of the embedded software. In this report, an overview is given of available methods and techniques to develop reliable...
report 1982
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van Schaik, F.J. (author), Storm van Leeuwen, S. (author)
The transducer selection process as applied to the F29 digital data-acquisition system is discussed in detail. The selection procedure consists of interviews of the users of the system, specification of the transducer part of the data-acquisition system, transducer selection from manufacturer data, evaluation tests, integration into the data...
report 1981
Searched for: subject%3A%22qualities%22
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