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Wilhelmshaven, Germany

John P.,Jade University of Applied Science | Noble A.,Antwerp Maritime Academy | Bjorkroth P.,Novia University of Applied Sciences
WMU Journal of Maritime Affairs | Year: 2016

The paper compares the pedagogical advantages of two simulation types used for training verbal maritime communication. It tests the hypothesis that “low-fi” simulation using online web conference software, specifically ‘chat’ or messaging, is a valid complementary tool for the instruction of Maritime English and full-mission simulation. Based on a series of exercises involving multi-national and multi-lingual students, various linguistic patterns are determined and compared to audio recordings of full-mission simulation. Probability of superiority effect sizes is computed to quantify the observed effects. The findings corroborate the proximity of language patterns found in low-fi and full-mission simulation. Pedagogical implications are discussed, and future research possibilities are outlined. © 2016, World Maritime University.

Roggenbuck O.,University of Oldenburg | Reinking J.,University of Oldenburg | Harting A.,Jade University of Applied Science
Marine Geodesy | Year: 2014

Thanks to the latest developments in GNSS data processing the antenna heights aboard a ship can be determined with accuracies of up to 5 cm, also in the open ocean. These heights are a good basis to derive precise in-situ data of sea surface heights independently from satellite altimetry. However, for a reliable determination of sea surface heights, some essential hydrostatic and hydrodynamic corrections must be considered, as explained in this paper. Furthermore, an ocean wide determination of sea surface height from measurements on a container ship in the Pacific Ocean is presented. The results are compared with those from the Jason-2 altimeter. © 2014 Copyright Taylor & Francis Group, LLC.

Kurowski M.,University of Rostock | Korte H.,Jade University of Applied Science | Lampe B.P.,University of Rostock
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2012

A novel, satellite-guided rescue system is under development, utilizing an autonomously acting rescue boat to salvage a person overboard to increase significantly the chance of survival. This advanced technology requires new approaches for naval architecture and integration of computer-aided tools to develop and operate such devices. A substantial challenge is the design and the automation of the self-acting autonomous rescue boat which navigates to the person overboard automatically. The design of this free fall rescue vessel guarantees that it will be self-righting. The developed cascaded control concepts were designed to ensure the fastest possible approach to the casualty without endangering the person. A specifically integrated monitoring system supports the entire rescue operation. In this paper, a complex Search-and-Rescue-System for a satellite-supported rescue operation at sea will be presented which couples efficiently independent engineering tasks like naval architecture, control system design as well as information processing and monitoring. © 2012 Springer-Verlag.

Gassmann S.,Jade University of Applied Science | Luque A.,University of Seville | Perdigones F.,University of Seville | Quero J.M.,University of Seville | Pagel L.,Electronic Appliances
IECON Proceedings (Industrial Electronics Conference) | Year: 2013

The usage of standard PCBs (Printed Circuit Boards) for the creation of microfluidic systems was already reported. Here the combination of a standard microtechnology using photolithography and photo sensitive layers (SU8) and the PCB MEMS technology is presented. Using PCBs as the substrate the integration of electronics is simple and the substrate is available at low cost. Putting the sophisticated SU8 based micro technology using photolithography on top, new systems can be created. This combination leads to interesting low cost solutions for micro systems. Both technologies deliver their best, in the PCB technology integrated electrodes and electronics can be created while the SU8 technology adds high resolution high aspect-ratio micro systems which are not possible in a PCB implementation. Using this technology combination several sensor structures can be created. In this paper as successful examples an electrochemical sensor cell array and a flow sensor will be presented. © 2013 IEEE.

Nolle L.,Jade University of Applied Science
Mendel | Year: 2015

Autonomous underwater vehicles (AUVs) can be utilised to search the seafloor for resources, such as black smokers or dissolved organic matter (DOM) discharges. If the area is too large for a single AUV, a swarm of such vehicles can be used to carry out the search collectively. Since AUVs are expensive, those swarms are usually relatively small. Hence, effective and efficient collaboration schemes and search strategies are required. In this research, a collaboration scheme based on particle swarm optimisation (PSO) is proposed and evaluated using a swarm of three, respectively four, simulated AUVs. It has been shown that standard particle swarm optimisation gets easily trapped into local optima. Therefore, a scout vehicle is introduced which samples the entire search space in a systematic but sparse way. It updates the global best solution of the particle swarm if it finds a better region. It was shown that this scheme is capable of guiding the swarm towards more promising regions of the search space and therefore helps the swarm to escape local optima.

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