Searched for: subject:"quality%5C+control"
(1 - 20 of 28)

Pages

document
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
document
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
document
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
document
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
document
Meijer, F.M. (author), Visscher, H.J. (author)
Purpose: This paper aims to evaluate the quality control systems for constructions in seven countries in Europe with the purpose to trace innovative approaches and best practices that can serve as examples for other countries. Design/methodology/approach: The paper is based on a series of research projects carried out over a number of years....
journal article 2017
document
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
document
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
document
Biljecki, F. (author), Ledoux, H. (author), Du, X. (author), Stoter, J.E. (author), Soon, Kean Huat (author), Khoo, Victor (author)
To be used as input in most simulation and modelling software, 3D city models should be geometrically and topologically valid, and semantically rich. We investigate in this paper what is the quality of currently available CityGML datasets, i.e. we validate the geometry/topology of the 3D primitives (Solid and MultiSurface), and we validate...
conference paper 2016
document
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
document
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
document
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
document
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
document
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
document
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
document
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
document
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
document
Seravalli, E. (author)
The main aim of radiotherapy techniques is to deliver the dose to the target volume while sparing as much as possible the healthy tissue. Dose verifications prior the treatment of the patient are mandatory in order to guarantee high accuracy to the treatment. We have developed a 2D dose imaging system for dose delivery verification in hadron...
doctoral thesis 2008
document
Diermanse, F.L.M. (author)
report 2005
document
Chang, X.W. (author), Paige, C.C. (author), Tiberius, C.C.J.M. (author)
When processing observational data, statistical testing is an essential instrument for rendering harmless incidental anomalies and disturbances in the measurements. A commonly used test statistic based on the general linear model is the generalized likelihood ratio test statistic. The standard formula given in the literature for this test...
journal article 2005
document
Lee, G.E.M. van der (author), Duel, H. (author), Groot, S. (author), Aarts, H. (author), Pouwels, R. (author)
report 2000
Searched for: subject:"quality%5C+control"
(1 - 20 of 28)

Pages