Stability of rock-armoured mild slopes

Physical model tests have been performed to study static stability of rock-armoured mild slopes. Current stability design formulae for steeper rock-armoured slopes focus on plunging and surging waves. Slopes of 1:6 and milder usually have more spilling breakers which decreases the load. Also, on mild slopes displaced rocks more often remain...

Bridging HRI Theory and Practice: Design Guidelines for Robot Communication in Dairy Farming

Using HRI theory to inform robot development is an important, but difficult, endeavor. This paper explores the relationship between HRI theory and HRI practice through a design project on the development of design guidelines for human-robot communication together with a dairy farming robot manufacturer. The design guidelines, a type of...

Wave transmission at submerged coastal structures and artificial reefs

Wave transmission at low-crested coastal structures has been studied, based on physical model tests with trapezoidal impermeable, permeable and perforated structures. The differences between wave transmission at impermeable and permeable structures are relatively limited. For a perforated hollow structure with an impermeable vertical screen...

Numerical modelling of wave overtopping discharges at rubble mound breakwaters using OpenFOAM®

Numerical modelling of wave interaction with rock-armoured rubble mound breakwaters has been performed to study wave overtopping. The influences of the slope angle, a berm in the seaward slope, a protruding crest wall, a recurved parapet, and the wave steepness have been studied using a validated CFD model (OpenFOAM). The numerical modelling...

Wave overtopping discharges at rubble mound breakwaters including effects of a crest wall and a berm

Physical model tests have been performed to study wave overtopping at rubble mound breakwaters, including breakwaters with a crest wall, breakwaters with a berm, and breakwaters with a crest wall and a berm. For rubble mound structures with a protruding crest wall or with a stable berm, limited information is available in literature even...

Environmental design guidelines for circular building components based on LCA and MFA: Lessons from the circular kitchen and renovation façade

The transition towards a Circular Economy (CE) in the built environment is vital to reduce environmental impacts, resource consumption and waste generation. The built environment can be made circular by replacing building components with more circular ones. There are many circular design options for building components and knowledge about...

Influence of oblique wave attack on wave overtopping at caisson breakwaters with sea and swell conditions

The amount of wave overtopping at coastal structures such as vertical caisson breakwaters is strongly dependent on the angle of wave attack. The reducing effects of oblique waves on wave overtopping compared to perpendicular wave attack has been studied by means of three-dimensional wave basin tests. In these physical model tests the caisson...

Design Guidelines for Light and Noise Management in the Neonatal Intensive Care Unit

Neonatal Intensive Care Units (NICU) are environments with a high level of sensory stress. Medical advances and technology have contributed to increase the ratio of survival of premature infants but some devices and practices expose these babies to excessive noise and toxic sensory stimuli for which they are not prepared. This is related to...

Practices of fault diagnosis in household appliances: Insights for design

Fault diagnosis is the process of identifying and characterising a fault when a failure occurs. It is, therefore, an essential step to take before product-repair. In this study, we ask how conventional users diagnose faults in household appliances and how the design of these appliances facilitates or hampers the process of fault diagnosis.To...

Design guidelines for turbulence in traffic on Dutch motorways

Over the years the characteristics of traffic on Dutch motorways has changed, but its design guidelines did not develop as rapidly and large parts remain unchanged since the first guidelines from the 1970s. During the latest revision of the Dutch motorway design guidelines it became clear that a solid and comprehensive theoretical, or...