This paper extends the 'go-with-the-flow' method to explore enclosed environments, like oil reservoirs, pipe lines that transport liquids, and industrial tanks for processing chemicals, where sensing nodes cannot establish communication with the external world. Nonetheless, large quantities of highly …

Marktleider ‘Van Oord’ heeft veel innovatieve ideeën binnen de Subsea Rock Installation (SRI). De vloot bestaat uit o.a. valpijpschepen die worden ingezet voor het stabiliseren en beschermen van kabels, leidingen en andere installaties. Van Oord heeft sinds vorig jaar een nieuw schip bij de vloot toegevoegd …

This paper is investigating an existing photogrammetry workflow to find a method for increasing its viability for scanning in smaller objects in a production scenario. We are taking a closer look at the different production steps within the scanning process, to examine their influences on the overall …

Introduction In the harbor of Zierikzee there is a strong tidal influence. The difference between the water levels during high and low tide lies around the three meters. The harbors De Oude Haven and ‘T Sas fall dry during an extremely low tide. When these harbors fall dry, foundations will come in …

We report on a first field test in which miniaturized sensor motes were used to explore and inspect an operational pipeline by performing in situ measurements. The spherical sensor motes with a diameter of 39 mm were equipped with an inertial measurement unit (IMU) measuring 3-D acceleration, rotation, …

The local Dutch legislations (PGS-29) regarding the above-ground storage of flammable products have become stricter. This has led to the phasing out of Viking-Johnson couplings that are located inside of tank pits. These couplings are prone to leakage and they use rubber seals which are now prohibited …

When a pipeline is laid on the seabed it can be exposed to hazards of ship anchors, large fishing gear or ice keels. To prevent the pipeline of being damaged, the pipeline can be trenched. Trenching is a technique where the pipeline will be buried in the seabed to a certain depth. This can either be …

This report contains the results of the graduation research of Jurre Kuijper and Martin Volgers. The research goal is to find an appropriate model to calculate the heat transfer under different sets of system conditions. The system in this case is a sewer heat system, which consists of a sewage pipe …

Water velocity in rearing units for Atlantic salmon post-smolt can influence fish robustness. Studies have shown that training at velocities between 1-2 body lengths/second (bl/s) increases disease resistance in salmonid species. Monitoring and timely adjustments to the water velocity during post-smolt …

In 2006 a mud volcano erupted in Sidoarjo, a town south of East Java’s industrial hub, Surabaya. The volcano has continued to produce mud until the present day (2016) resulting in a mud depot of over 500 hectares. The mud has caused damage to the people living in the area and continues to bring destruction …