Significance of Static Backgrounds for Video Object Detection

Video Object Detectors (VID) are used in various applications such as surveillance, inspection, etc. Often in these applications there exists a spatial area of interest and a static background. The static backgrounds remain constant throughout the video sequence in the training data establishing an undesirable correlation with the moving object...

Electrochemical screening and surface analysis of environmentally friendly corrosion inhibitors for aerospace aluminium alloy

For the past few decades, the aerospace industry has been actively looking for measures to tackle the problem of localized corrosion of aluminium alloy 2024-T3. One such measure was the use of hexavalent chromium salts as corrosion inhibitors. However, recent studies have reflected the environmental concerns and health impacts associated with...

Assessing the correlation of aviation nitrogen oxides and ozone with respect to specific weather patterns

Aviation is a large contributor to anthropogenic climate change through its emissions, particularly through nitrogen oxides (NOx), which reacts to Ozone in the atmosphere. Due to the emission of NOx, the ozone budget of the atmosphere is disturbed which results in an increase in the Earth’s surface temperature. To mitigate this effect, the...

Probabilistic Design of a Rubble Mound Breakwater

All over the world rubble mound breakwaters are built to protect harbours, shorelines, and other vulnerable coastal areas against wave action and currents. Most of the designs for these structures use so called deterministic or semi-probabilistic design methods (level I). With these methods insight in the uncertainties, and consequently the...

Developing a data based method to quantify the effects of flight track, aircraft weight and engine setting on the received aircraft noise levels

Airports in The Netherlands are subjected to tangent environmental laws to restrain pollution and noise nuisance. Amsterdam Airport Schiphol (AAS) is one airport dealing with this regulatory framework but nevertheless they are resolute to continue growth with respect to aircraft movements. To cope with the law related to aircraft noise, the...

On the correlation between Turbidity, Conductivity and COD

Introduction COD is one of the most important parameters for wastewater quality. Measuring COD is an expensive and time consuming process. There is a need for an inexpensive, accurate, reliable and continuous technique to monitor COD. Turbidity can be used as a proxy for COD, but is not accurate enough for some applications. Some research...

Compressive Sensing for Near-field Source Localization

Near-field source localization is an important aspect in many diverse areas such as acoustics, seismology, to list a few. The planar wave assumption frequently used in far-field source localization is no longer valid when the sources are in the near field. Near-field sources can be localized by solving a joint direction-of-arrival and range...

Correlation and Error Localization: Analytical versus Experimental Dynamics of a Large Structural Assembly

In the high tech industry the performance of a system generally depends heavily on the system’s structural dynamic behaviour. Relatively small resonating components can alter the dynamics of the assembly significantly. Due to the presence of many small components and limited test resources it is often difficult to find the disruptor. In this...