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van Breda, L. (author), Passenier, P.O. (author), TNO Human Factors Research Inst, Soesterberg, Netherlands (author)A simulator experiment was conducted to determine the potential benefits of path prediction on the navigation performance with channel-bound vessels. Six pilots had to sail an approach channel by a deep draught vessel under critical conditions. For navigation, a basic ARPA radar system was used, supplemented by three types of path predictors....conference paper 1997
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TNO Fysisch en Elektronisch Laboratorium (author), de Jong, A.N. (author), Winkel, J. (author)The range performance of IRST sensors is partly determined by the propagation of the atmosphere. For low altitude targets the boundary layer of the atmosphere introduces a variety of effects due to inhomogeneities, for which model predictions are not yet well validated. For this reason NATO Research Study Group 5 on "Maritime Infrared Target and...conference paper 1997
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Kerstholt, J.H. (author), Passenier, P.O. (author), Houttuin, K. (author), Schuffel, H. (author), TNO Technische Menskunde (author)In the present study we investigated how monitoring and fault management in a ship control task are affected by complexity and a priori probability of disturbances. Partici-pants were required to supervise four independent shipping subsystems and to adjust the subsystems whenever deviations occurred. However, in order to apply the correct action...article 1996
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Huizing, A.G. (author), Bloemen, A.A.F. (author), TNO Fysisch en Elektronisch Laboratorium (author)The new generation of air defence frigates has to be equipped with a high performance sensor suite to cope with the threat in future maritime scenarios. A multifunction radar (MFR) with a single rotating or multiple fixed phased array antennas is often the key element in this sensor suite because it can perform not only surveillance functions...conference paper 1996
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Fysisch en Elektronisch Laboratorium TNO (author), de Jong, A.N. (author)The IR contrast of ships at sea is of importance for those who want to detect or identify the ship and for those who worry about this. This IR contrast is determined by a large number of parameters. Of course temperatures of the ship's structure and those of the ambient sea and air are important, but also important are the reflection properties...conference paper 1993
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Instituut voor Milieu- en Energietechnologie TNO (author), Compaan, H. (author), Rhemrev, M.M. (author), Houtzager, M.M.G. (author)This work was undertaken within the framework of Lloyd's Register's Marine Exhaust Emissions Research Programme. Phase II of this research programme [] evaluated exhaust emissions from ships in service under steady state and transient modes of operation and incorporated measurements of CO, CO2, 02, SO2, NOa and hydrocarbons on board eight ships....report 1992
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Verheij, J.W. (author), Technisch Physische Dienst TNO - TH (author)Measurement of the structure-borne sound energy flow through pipes has been studied for the purpose of transmission path ranking. This paper describes the measuring methods for frequencies below the cut-off frequency of the n = 2 shell mode. The methods show a strong analogy with the two-microphone cross-spectral density method for airborne...article 1990
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- Instituut voor Zintuigfysiologie TNO (author), Passenier, P.O. (author) doctoral thesis 1989
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Instituut voor Zintuigfysiologie TNO (author), Schuffel, H. (author), Boer, J.P.A. (author), van Breda, L. (author)Naar aanleiding van een proefperiode met zesbaksduwvaart heeft de Tweede Kamercommissie voor Verkeer en Waterstaat aangedrongen op een nadere studie betreffende de veiligheid van de vaart met duwstellen. Eén van de door de Minister van Verkeer en Waterstaat toegezegde onderzoeken is door de Dienst Verkeerskunde aan het Instituut voor...report 1988
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- Fysisch en Elektronisch Laboratorium TNO (author), Bennema, J. (author), Willemsen, G.A. (author) conference paper 1988
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- Technisch Physische Dienst TNO - TH (author) conference paper 1987
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- Instituut voor Zintuigfysiologie TNO (author), Schuffel, H. (author) doctoral thesis 1986
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Hoogeboom, F. (author), Kleijweg, J.C.M. (author), van Halsema, D. (author)The directional spectrum of a wavefield can be determined from a ships radar image with 180 degree ambiguity. The nondirectional waveheight spectrum follows by integration over all azimuth angles. These spectra are influenced by noise and interference from several sources, such as speckle, wind influence and shadowing (especially at long ranges...conference paper 1986
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Schuffel, H. (author), Instituut voor Zintuigfysiologie TNO (author)As ship bridge design is supposed to support the watch-officer's sensing, information processing and motor-handling activities, the question is raised as to how these processes can be measured. The suggestion is to conduct experiments on different paradigms which together allow general conclusions and interpretation. Two such experiments are...conference paper 1985
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- Souer, H.J. (author), Nederlands Scheepsstudiecentrum TNO (author) report 1973
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ten Wolde, T. (author), Technisch Physische Dienst TNO - TH (author)The general reciprocity theorem for linear dynamical systems was formulated by Rayleigh about a century ago (ref. 1.1). Nevertheless, in the fields of acoustics and structural dynamics the principle is not generally accepted as a useful tool and the number of applications is very limited. The limited use of the reciprocity principle is caused...doctoral thesis 1973
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- Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek (author) conference paper 1973
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Nederlands scheepsbouwkundig proefstation (author), van Manen, J.D. (author)Brochure uitgegeven ter gelegenheid vna het 40 jarig bestaan van het NSP op 9 mei 1972.book 1972
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Lazet, A. (author), Walraven, P.L. (author), Instituut voor Zintuigfysiologie TNO (author)New ergonomic questions arise from the tendency toward increasing automation in maritime operations. Direct control of engines and rudder from the bridge promises improved ship control, provided that the operator can really exploit the technical improvements. To make such direct control most efficient, good ergonomic design is essential. A...article 1971