Searched for: subject%3A%22Perception%22
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Heus, R. (author), TNO Technische Menskunde (author)
In two recent studies, a decreased VO2-peak was found during simulated ship motions in a Ship
report 1998
document
van Oss, R. (author), Duyzer, J. (author), Wyers, P. (author), TNO Milieu, Energie en Procesinnovatie (author)
Measurements of vertical gradients of ammonium nitrate aerosol and NH3 are used together with HNO3 concentrations to study the influence of gas-to-particle conversion (gtpc) on surface exchange processes above a forest. A numerical model of surface exchange, in which a description of gtpc was incorporated, is used to interpret the measurements....
conference paper 1998
document
Bijl, P. (author), Valeton, J.M. (author), TNO Technische Menskunde (author)
The characterization of electro-eptical system performance by means of the minimum resolvable temperature difference (MRTD) or minimum resolvable contrast (MRC) has at least three serious disadvantages: (1) the bar pattern stimulus is theoretically and practically unsuitable for 1-D or 2-D spatially sampled systems such as pixel-array cameras, ...
article 1998
document
Raussens, V. (author), de Jongh, H. (author), Pézolet, M. (author), Ruysschaert, J.-M. (author), Goormaghtigh, E. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
Models of P-type ATPase predict that membrane-embedded fragments represent about 20% of the protein and adopt an all-α-helical structure. While this prediction was confirmed for the Ca2+ -ATPase [Corbalan-Garcia, S., Teruel, J., Villalain, J. and Gomez-Fernandez, J. (1994) Biochemistry 33, 8247-8254], it is at odds with recent experimental...
article 1998
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Daanen, H.A.M. (author), van de Water, G.J. (author), TNO Technische Menskunde (author)
Whole body scanning is a useful technique with applications in the apparel industry, human systems engineering and the medical field. A worldwide review of whole body scanners describes eight commercially available systems. The scanners differ considerably in price (50 to 410 thousand dollars), resolution (1 to 8 mm) and speed (0.2 to 30 seconds...
article 1998
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Mattig, U. (author), de Mulder, E.F.J. (author), Nederlands Instituut voor Toegepaste Geowetenschappen TNO (author)
The Commission on Geological Sciences for Environmental Planning (COGEOENVIRONMENT) of IUGS and UNESCO have initiated a joint project to develop a worldwide data base on earthscience-related environmental problems and to assess which geoscientific information is available locally for prevention, prediction or mitigation of such problems. As a...
article 1998
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Theeuwes, J. (author), Atchley, P. (author), Kramer, A.F. (author), TNO Technische Menskunde (author)
Four experiments investigated whether directing attention to a particular plane in depth enables observers to filter out information from another depth plane. Observers viewed stereoscopic displays and searched for a red line segment among green line segments. The results showed that directing attention to a particular depth plane cannot prevent...
article 1998
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Miedema, H.M.E. (author), Vos, H. (author), TNO Preventie en Gezondheid (author)
This article presents synthesis curves for the relationship between DNL and percentage highly annoyed for three transportation noise sources. The results are based on all 21 datasets examined by Schultz [J. Acoust. Soc. Am. 64, 377-405 (1978)] and Fidell et al. [J. Acoust. Soc. Am. 89, 221-233 (1991)] for which acceptable DNL and percentage...
article 1998
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Rijkeboer, R.C. (author), Havenith, C. (author), Baarbe, H.L. (author), TNO Wegtransportmiddelen (author)
Different scenarios have been compared for the future reduction of CO2-emission under real-world driving conditions. A significant shift towards diesel appears hardly to benefit the CO2 but would carry a real NOx penalty. Introduction of DI petrol engines and a shift towards gaseous fuels for s.i. engines would have similar results for CO2,...
conference paper 1998
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Vossen, Y.M.L. (author), van den Acker, M.M.A.L. (author), Gunnink, J.W. (author), de Jonge, R. (author), Technisch Physische Dienst TNO - TH (author)
Als vervolg op een aantal projecten uit afgelopen jaren op het gebied van CAD/CAM is door TNO een Europees gesubsidieerd vervolgproject opgezet met de bedoeling, samen met de aardewerk- en porseleinindustrie, stap voor stap de ontwikkellingsgang van ontwerp naar eindroject door te werken. Op deze manier wordt kennis en know how opgebouwd en...
article 1998
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Bles, W. (author), TNO Technische Menskunde (author)
Coriolis effects are notorious in relation to disorientation and motion sickness in aircrew. A review is provided of experimental data on these Coriolis effects, including the modulatory effects of adding visual or somatosensory rotatory motion information. A vector analysis of the consequences of head movements during somatosensory, visual and...
article 1998
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Hoekstra, E.J. (author), de Leer, E.D.W.B. (author), Brinkman, U.A.T.H. (author), TNO Milieu, Energie en Procesinnovatie (author)
We studied the occurrence of halogenated organic compounds in soil air of rural areas. Chloroform appeared to occur in elevated concentrations compared tO those in atmospheric air, while the concentrations of other chlorinated solvents were almost equal or lower than those in atmospheric air. We report conclusive evidence that chloroform is...
article 1998
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Thijsse, T.R. (author), Duyzer, J.H. (author), Verhagen, H.L.M. (author), Wyers, G.P. (author), Wayers, A. (author), Möls, J.J. (author), TNO Milieu, Energie en Procesinnovatie (author)
Results of a study to evaluate the suitability of passive samplers for the measurement of monthly averaged ammonia concentrations are presented. Five different samplers were tested. Four were diffusion tube samplers which differed in length and in the way they were modified to minimize disturbing effects of wind turbulence. Also tested was a...
conference paper 1998
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Papp, Z. (author), Technisch Physische Dienst TNO - TH (author)
A nonlinear fuzzy control structure enhanced with supervised learning and/or adaption is presented. Availability of at least a partial process model is assumed. Nonlinear process identification procedure is used to complete the partial model. Based on the identification model the system sensitivity model is derived which guides the training...
conference paper 1998
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Benschop, H.P. (author), Trap, H.C. (author), Spruit, H.E.T. (author), van der Wiel, H.J. (author), Langenberg, J.P. (author), de Jong, L.P.A. (author), Prins Maurits Laboratorium TNO (author)
In order to initiate a quantitative basis for the toxicology of low level exposure to nerve agents, the toxicokinetics of soman stereoisomers during nose-only exposure for 5 h to 20 ppb (160 μg/m3) of C(±)P(±)- soman in air were studied in restrained, anesthetized, and atropinized guinea pigs. The concentrations of the toxic C(±)P(-)-soman...
article 1998
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Wertheim, A.H. (author), TNO Human Factors Research Institute (author)
The present paper provides a review of research and theories concerning the question of how and why working in a moving environment may affect performance. It is argued that performance decrements can be expected to occur as a result of general factors or as a result specific impairments of particular human skills. General effects happen when...
article 1998
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Theeuwes, J. (author), Kramer, A.F. (author), Hahn, S. (author), Waite, T. (author), TNO Technische Menskunde (author)
Purpose. To determine the extent to which endogenously controlled eye movements are affected by the sudden appearance of an irrelevant object (an abrupt onset). Previous research has shown that visual attention is captured by the appearance of a new object (e.g., Yantis, 1993). Methods. Observers had to make an eye movement to a predefined...
article 1997
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Groen, E.L. (author)
In our daily lives, the omnipresent force of gravity helps the perceptual system to integrate egocentric information arising in the eyes, head, and body into an exocentric frame of reference. With the otolith organs in our inner ear, we possess a sensory system that is specialized to detect gravity. The situations considered in this thesis make...
doctoral thesis 1997
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Kooi, F.L. (author)
New methods to measure information uptake and eye strain have been developed. The speed of information uptake is measured with a reading task that demands quick and accurate eyemovements. Accommodative facility is shown to be a good measure for eye strain. A standard monitor and three types of HMDs were compared on both tasks. The HMDs were (i)...
conference paper 1997
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Bles, W. (author), de Graaf, B. (author), Bos, J.E. (author), TNO Technische Menskunde (author)
article 1996
Searched for: subject%3A%22Perception%22
(341 - 360 of 426)

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