- document
-
Merino Martinez, R. (author), Neri, Eleonora (author), Snellen, M. (author), Kennedy, John (author), Simons, D.G. (author), Bennett, Gareth J. (author)The noise emissions of a full-scale nose landing gear, measured in a wind tunnel and obtained from computational simulations, are compared with those of three regional aircraft types recorded in flyover measurements. The results from these three approaches are also compared with the predictions of two airframe noise models (Fink and Guo). The...conference paper 2018
- document
-
Sarsito, Dina Anggreni (author), Simons, W.J.F. (author)North Sulawesi Trench or Minahasa subduction area is a subduction zone between the oceanic crust of Sulawesi Sea and the North Sulawesi Arm located at the triple junction in Eastern Indonesia. This subduction activity causes the North Arm of Sulawesi as an earthquake-prone area. Tectonic activities in the region can be studied through...conference paper 2018
- document
-
Merino Martinez, R. (author), Sanders, Martinus P.J. (author), Caldas, Luciano C. (author), Avallone, F. (author), Ragni, D. (author), de Santana, Leandro D. (author), Snellen, M. (author), Simons, D.G. (author)Microphone arrays are useful measurement devices for estimating the location and strength of sound sources. Numerous comparative studies have been conducted regarding the performance of acoustic imaging methods in the past, but literature lacks of a systematic investigation on the role of the hardware on the measurements. This research...conference paper 2018
- document
- Vieira, A.E. (author), Snellen, M. (author), Simons, D.G. (author) journal article 2018
- document
-
Arce Leon, C.A. (author), Merino Martinez, R. (author), Ragni, D. (author), Avallone, F. (author), Scarano, F. (author), Pröbsting, S. (author), Snellen, M. (author), Simons, D.G. (author), Madsen, Jesper (author)The broadband noise generated by the scattering of turbulent flow at the trailing edge of a NACA 0018 airfoil with trailing edge serrations is investigated, varying both the airfoil angle of attack and serration flap angle. Acoustic emissions from the trailing edge are measured using a microphone array. The noise level is observed to be...journal article 2017
- document
-
Bin Mustafar, M.A. (author), Simons, W.J.F. (author), Tongkul, Felix (author), Satirapod, Chalermchon (author), Omar, Kamaludin Mohd (author), Visser, P.N.A.M. (author)The existence of intra-plate deformation of the Sundaland platelet along its eastern edge in North Borneo, South-East Asia, makes it an interesting area that still is relatively understudied. In addition, the motion of the coastal area of North-West Borneo is directed toward a frontal fold-and-thrust belt and has been fueling a long debate on...journal article 2017
- document
- Simons, A.C.M. (author) master thesis 2017
- document
- Merino Martinez, R. (author), Neri, Eleonora (author), Snellen, M. (author), Kennedy, J (author), Simons, D.G. (author), Bennett, Gareth J. (author) conference paper 2017
- document
-
Sahai, A.K. (author), Van Hemelen, T. (author), Simons, D.G. (author)This paper presents a methodology with which aircraft designs can be modified such that they produce optimal sound signatures on the ground. With optimal sound it is implied in this case sounds that are perceived as less annoying by residents living near airport vicinities. A novel design and assessment chain has been developed which combines...poster 2017
- document
-
Mohammadloo, Tannaz H. (author), Tengku Ali, T.A. (author), Snellen, M. (author), Koop, L. (author), Gaida, T.C. (author), Simons, D.G. (author)Knowing the morphology and sediment composition of the seabed is of high importance for various applications. In this contribution, the repeatability of acoustic seafloor classification (ASC) results obtained from MBES backscatter value is investigated. The unsupervised classification algorithm based on Principal Component Analysis has been...conference paper 2017
- document
-
Mohammadloo, Tannaz H. (author), Snellen, M. (author), Simons, D.G. (author)The most recent generation multi-beam echosounders (MBES) allows to transmit Frequency Modulated (FM) signals, in addition to the more conventional Continuous Wave (CW) pulses. In this contribution, the effect of using these FM pulses for bathymetric measurements is investigated. Advantage of using FM signals is that measurements can be taken at...conference paper 2017
- document
- Mohammadloo, Tannaz H. (author), Snellen, M. (author), Simons, D.G. (author), Dierikx, Ben (author), Bicknese, Simon (author) conference paper 2017
- document
-
Peter-Contesse, H. (author), Jäggi, Adrian (author), Fernández, JJ (author), Escobar, D. (author), Ayuga, F. (author), Arnold, D (author), Wermuth, M. (author), Hackel, S. (author), Otten, M. (author), Simons, W.J.F. (author), Visser, P.N.A.M. (author), Hugentobler, U. (author), Féménias, P. (author)Sentinel-1A is the first satellite of the European Copernicus programme. Equipped with a Synthetic Aperture Radar (SAR) instrument the satellite was launched on April 3, 2014. Operational since October 2014 the satellite delivers valuable data for more than two years. The orbit accuracy requirements are given as 5. cm in 3D. In order to...journal article 2017
- document
- Sahai, A.K. (author), Snellen, M. (author), Simons, D.G. (author), Stumpf, E (author) journal article 2017
- document
- Snellen, M. (author), Merino Martinez, R. (author), Simons, D.G. (author) journal article 2017
- document
-
Pieren, R.D. (author), Heutschi, Kurt (author), Aalmoes, R (author), Simons, D.G. (author)By directly addressing the hearing sensation, auralization is an intuitive means for the assessment and communication of noise scenarios. Authenticity can be fu1iher improved by offering visual information. Currently, various auralization and visualization systems exist, that differ with respect to their sound and image signal generation as well...conference paper 2017
- document
- Simons, D.G. (author), Snellen, M. (author), Merino Martinez, R. (author), Malgoezar, A.M.N. (author) conference paper 2017
- document
-
Vieira, A.E. (author), Snellen, M. (author), Simons, D.G. (author)The shielding of engine noise by the aircraft wings and fuselage can lead to a significant reduction on perceived noise on ground. Most research on noise shielding is focused on BlendedWing Body (BWB) configurations because of the large dimension of the fuselage. However, noise shielding is also considered relevant in conventional tube and...conference paper 2017
- document
-
Jones, Robin (author), Diehl, J.C. (author), Simons, Leon (author), Verwaal, M. (author)Preparation of Injera, the cultural staple bread food<br/>item in Ethiopia, is known for its intensive energy consuming<br/>cooking. Baking this food item in the traditional three stone stoves,<br/>with an efficiency of 5-15%, consumes huge amounts of firewood<br/>and causes consequent problems like deforestation, global warming<br/>and...conference paper 2017
- document
-
Simons, G.W.H. (author), Bastiaanssen, W.G.M. (author), Ngô, L.A. (author), Hain, C.R. (author), Anderson, M. (author), Senay, G. (author)With changes in weather patterns and intensifying anthropogenic water use, there is an increasing need for spatio-temporal information on water fluxes and stocks in river basins. The assortment of satellite-derived open-access information sources on rainfall (P) and land use/land cover (LULC) is currently being expanded with the application of...journal article 2016