Integration of model-based systems engineering tools in the holistic ship design framework

Modern design procedures in maritime transportation are faced by multiple challenges related to technical and operational constraints for safety, energy efficiency, cost effectiveness and environmental performance. These requirements, in combination with a wide range of machinery technologies, result in a complex landscape of solutions which can...

Benchmarking of model-based systems engineering tools for the performance assessment of marine energy systems

The purpose of this paper is to highlight the stages where standardization is needed for model-based simulation as part of the holistic design and operational performance assessment of ship machinery systems. This need may rise in different stages of ship lifecycle, when model results are used and compared (e.g. as performance metrics for bids)...

Ship power system modelling for the control and optimisation of multiple alternative energy sources on-board a ship

The INOMANS2HIP project aimed to create advanced ship systems models to investigate alternative

The impact of tone language and non-native language listening on measuring speech quality

The extent to which the modeling used in objective speech quality algorithms depends on the cultural background of listeners as well as on the language characteristics using American English and Igbo, an African tone language is investigated. Two different approaches were used in order to separate behavioral aspects from speech signal aspects....

The use of a Generic Energy System (GES) model for fishing vessels

Objective speech intelligibility measurement on the basis of natural speech in combination with perceptual modeling

The relation between subjective and objective speech intelligibility measurements is researched. For a large series of speech degradations, noise, linear and nonlinear distortions (speech codecs), intelligibility tests were carried out using short CVC words. In the subjective domain the percentage correctly identified words is taken as the...

Degradation decomposition of the perceived quality of speech signals on the basis of a perceptual modeling approach

The authors discuss the way we perceive the quality of a speech signal and how different degradations contribute to the overall perceived speech (listening) quality. More specifically, ITU-T Recommendation P.862 (perceptual evaluation of speech quality-PESQ), which provides a perceptual modeling approach with which the subjectively perceived...

The 4GPLUS project, overview and main results

A 4G-environment is based on the integration of 3G mobile and other wired and wireless technologies into an all-IP network environment. Central to such an environment is a 4G-service platform, which offers services such as AAA, mobility management and session control, and also mediates between the users and providers of these services. Each...

Design and evaluation of ship's power plants

The cruise industry is host to major changes in the way the skip's power plants are configured. Diesel-electric propulsion has replaced most diesel-mechanic systems for larger ships. Podded propulsion is making serious headway and gas turbines are currently under order. In future, fuel cells, permanent magnefiechnology and novel propulsion...