An analysis of four different models for quantifying tomato transpiration in a soilless greenhouse

Scientific literature points to several models used to calculate the transpiration of vegetable crops inside a greenhouse but the results are hard to compare since different experiment setups were used. This study aimed to analyse the accuracy of four different transpiration models, Penman-Monteith, Stanghellini, Priestley-Taylor, and Takakura...

The plugging effect on the design of open-ended steel pipe piles

This research looks at the workings of three design methods for piles loaded in compression and tension by modelling capacity for different soil profiles, varying parameters and load tests. Compared methods are from the NEN 9997-1 (NEN), CUR 2001-8 report (CUR) and a newly developed international standard (ISO). It is generally accepted that the...

Physical modelling of submerged groynes

Currently multiple projects investigate the effect of lowering the crest of groynes in the Dutch rivers with the aim to lower the backwater effect of groynes under high water levels. There is a major uncertainty however in the modelling of groynes, and therefore in the prediction of the effect of groyne lowering. Currently submerged groynes are...

A Machine Learning Approach to Flight Safety Event Prediction

Safety occurrences in the aviation industry are nowadays commonly regarded as the outcome of a complex system. Due to this systemic view on safety airlines pursue to understand this complex, underlying system and aim to proactively act upon the occurrence of these events. The most prevalent implementation of flight safety event detection is...

Creating trust through verification of interaction records

Trust on the internet is largely facilitated by reputation systems on centralized online platforms. How- ever reports of data breaches and privacy issues on such platforms are getting more frequent. We argue that only a decentralized trust system can enable a privacy-driven and fair future of the online economy. This requires a scalable system...

Pinned connections

The current calculation methods which determine the capacity of pinned connections provide different results. In this thesis a detailed look on those theories and the effect of different parameters is studied. Because it is hard to provide any conclusions about just comparing these theories also a FEM analysis is done. In this thesis the FEM...

Surgical lighting in motion: Design and validation of an improved suspension mechanism for the surgical luminaire

Usability issues have been observed in luminaire repositioning, during surgical operations. These difficulties were confirmed to be related to the kinematics of the translational subsystem of the suspension mechanism, specifically the possibility of singularity. Due to which the required force for luminaire repositioning depends on the spatial...

Design Process: Designing a perfume package for fashion brand Supertrash based on research findings

Despite the fact that customers name the scent of a perfume as the number one reason for buying it, it is often very difficult for them to find a perfume they really like. Humans are poorly capable to verbally communicate scent characteristics. On top of that the perfume market is extremely large and dynamic and the offering in stores is simply...

80 km/u vertraagt?: De oorzaken van de toename in filezwaarte na invoering van de 80 km/u maatregel