Modelling dune erosion, overwash and breaching at Fire Island (NY) during hurricane Sandy

In 2012, Hurricane Sandy caused a breach at Fire Island (NY, USA), near Pelican Island. This paper aims at modelling dune erosion, overwash and breaching processes that occured during the hurricane event at this stretch of coast with the numerical model XBeach. By using the default settings, the erosion rates are substantially overestimated,...

Java/JNI/C/Fortran based HSVD/HLSVD custom plugins for the jMRUI software system: Development, installation and usage

This work was done in the context of FP7 - PEOPLE Marie Curie Initial Training Network Project PITN-GA-2012-316679-TRANSACT. This report describes the development, installation and usage of the HSVD and HLSVD plugin for the jMRUI software system. The latter system is maintained by the TRANSACT EU project. The plugins aim at providing information...

Improved estimation of the temporal decay function of in vivo metabolite signals

MRI-scanners enable non-invasive, in vivo quantitation of metabolites in, e.g., the brain of a patient. Among other things, this requires adequate estimation of the unknown temporal decay function of the complex-valued signal emanating from the metabolites. We propose a method to render a current decay estimator more simple, accurate, and robust...

Java/JNI/C/Fortran makefile project for a Java plug-in and related Android app in Eclipse ADT bundle: A side-by-side comparison

We have developed a Java/Fortran based application, called MonteCarlo, that enables the users can carry out Monte Carlo studies in the field of in vivo MRS. The application is supposed to be used as a tool for the jMRUI platform, being the in vivo MRS software system of the TRANSACT European Union project. The MonteCarlo application can be...

Monte Carlo Modeling for in vivo MRS: Generating and quantifying simulations via the Windows, Linux and Android platform

Work in context of European Union TRANSACT project. We have developed a Java/JNI/C/Fortran based software application, called MonteCarlo, with which the users can carry out Monte Carlo studies in the field of \emph{in vivo} MRS. The application is supposed to be used as a tool for supporting the \emph{j}MRUI platform, being the \emph{in vivo}...

Estimating errors in clinical MRS

In clinical Magnetic Resonance Spectroscopy (MRS), errors in the estimated in vivo metabolite concentration are usually obtained from the Cramer-Rao lower bounds (CRBs). The reliability of this procedure under in vivo MRS conditions is discussed.

Rip current predictions through model-data assimilation on two distinct beaches

This paper describes the development of a physics-based rip current prediction system called CoSMoS. This system consists of a hydrodynamic prediction system which is composed of a train of surge and wave models from the global scale to the scale of a beach resort (order kilometers). For the beach resort scale model, it is of utmost importance...

Simulating Metabolite Basis Sets for in vivo MRS Quantification; Incorporating details of the PRESS Pulse Sequence by means of the GAMMA C++ library

In this work we report on generating/using simulated metabolite basis sets for the quantification of in vivo MRS signals, assuming that they have been acquired by using the PRESS pulse sequence. To that end we have employed the classes and functions of the GAMMA C++ library. By using several versions of our PRESS-simulation program, we were able...

Real-time forecasting of morphological storm impacts: A case study in the Netherlands

Recent events like the Sumatra tsunami and Hurricane Katrina have reminded the world of the vulnerability of coastal areas to extreme events. Despite hydraulic engineering measures to minimize failure probability of coastal defence structures, a probability of failure, albeit small, remains. To assist local authorities and the population in...

Dynamic MR-Imaging with Radial Scanning, a Post-Acquisition Keyhole Approach

A new method for 2D/3D dynamic MR-Imaging with radial scanning is proposed. It exploits the inherent strong oversampling in the centre of k-space, which holds crucial temporal information of the contrast evolution. It is based on (1) a rearrangement of (novel 3D) isotropic distributions of trajectories during the scan according to the desired...

Error-Bars in Semi-Parametric Estimation

In in vivo metabolite-quantitation with a magnetic resonance spectroscopy (MRS) scanner, the model function of the attendant MRS signal is often only partly known. This unfavourable condition requires semi-parametric estimation. In the present study the unknown part is the form of the decay function of the MRS signal. The lack of knowledge is...

Magnetic resonance with La2 (Mg, Mn)3 (NO3) 12 . 24H2O