- document
-
Segers, P. (author), Stergiopulos, N. (author), Schreuder, J.J. (author), Westerhof, B.E. (author), Westerhof, N. (author)It is generally accepted that the left ventricle (LV) hypertrophies (LVH) to normalize systolic wall stress (σ(s)) in chronic pressure overload. However, LV filling pressure (P(v)) may be elevated as well, supporting the alternative hypothesis of end-diastolic wall stress (σ(d)) normalization in LVH. We used an LV time-varying elastance model...article 2000
- document
-
Verwey, W.B. (author)In order to develop a driver-car interface that adapts the presentation of messages generated by in-vehicle information systems to driver workload, two experiments investigated potential determinants of driver visual and mental workload as indicated by performance on two secondary tasks. Experiment 1 suggested that road situation is a major...article 2000
- document
-
Hoedemaeker, M. (author), Bastiaensen, E.G.H.J. (author), Zwaneveld, P.J. (author), TNO Human Factors, Soesterberg, Netherlands (author)This paper describes the set-up of a AVG knowledge database from the AVV Transport Research Centre from the Dutch Ministry of Transport, Public Works and Water Management. The database provides a categorised overview of all research performed in The Netherlands in the area of Automatic Vehicle Guidance (AVG). Two analyses are performed on the...conference paper 2000
- document
-
Hoedemaeker, D.M. (author)This paper presents an overview of the work of a PhD project performed within the research programme "Technology Assessment Automatic Vehicle Guidance" concerning individual driver behaviour and acceptance of Adaptive Cruise Control [1]. It describes and discusses the results of a questionnaire study and two experimental driving simulator...conference paper 2000
- document
- Hoedemaeker, D.M. (author) conference paper 2000
- document
-
Verhoeff, L. (author), Zuurbier, J. (author), Lupker, H.A. (author), TNO Wegtransportmiddelen (author)This paper presents the analysis of truck platoon dynamics using a simulation environment. In this case the platoon consists of a number of trucks following each other using driver algorithms. MADYMO (a multibody and FE software package) and MATLAB/SIMULINK are coupled to allow for these driver algorithms to act on the detailed multibody vehicle...conference paper 1999
- document
-
Neef, R.M. (author), Thierens, D. (author), Arciszewski, H.F.R. (author), TNO Fysisch en Elektronisch Laboratorium (author)We present a multiobjective genetic algorithm that incorporates various genetic algorithm techniques that have been proven to be efficient and robust in their problem domain. More specifically, we integrate rank based selection, adaptive niching through coevolutionary sharing, elitist recombination, and non-dominated sorting into a...conference paper 1999
- document
-
Hogema, J.H. (author)Microscopic traffic simulation constitutes a useful method for predicting the effects of new transport telematic systems in road traffic. In such a model, the driver model is a key element describing the dynamic individual driving behavior in relation to the vehicle, the road environment, and other traffic participants. The driver model...article 1999
- document
-
Hopman-Rock, M. (author), Kraaimaat, F.W. (author), Odding, E. (author), Bijlsma, J.W.J. (author), TNO Preventie en Gezondheid (author)Objective. To investigate the use of pain coping strategies by community-living older people with pain in the hip or knee and the mediating role of coping with pain in the relationship between the chronicity of pain and physical disability. Methods. A group of 157 people with pain 'in the last month' was identified. Coping with pain was assessed...article 1998
- document
-
Wertheim, A.H. (author), Bos, J.E. (author), Bles, W. (author), TNO Technische Menskunde (author)The purpose of the present study was to test the traditional assumption that sea sickness is uniquely provoked by heave motion characteristics, pitch and roll movements being ineffective. In an experi-ment with a ship motion simulator subjects were exposed to pitch, and roll motions in combination with rather weak heave motions that have no...article 1998
- document
-
van der Horst, A.R.A. (author), TNO Technische Menskunde (author)This report summarises the findings of Research Area 2 within the European project MASTER (MAnaging Speeds of Traffic on European Roads) and addresses the question "what are the key factors influencing drivers' choice of speed?" It deals with present speeds and speed management methods, speed enforcement, motivation and acceptability of driving...report 1998
- document
-
Bakker, G.C.M. (author), Dekker, R.A. (author), Jongbloed, A.W. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)In pigs and humans, the nutrients starch, protein, fat and some minerals need to be digested prior to the terminal ileum for optimal use of these nutrients. In contrast, the non-starch polysaccharides (NSP) are mainly fermented by microbes in the hindgut. Results of experiments in pigs showed that NSP negatively affected apparent digestion of...article 1998
- document
-
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
- document
- TNO Technische Menskunde (author), Boer, E.R. (author), Hoedemaeker, D.M. (author) conference paper 1998
- document
-
Hopman-Rock, M. (author), Kraaimaat, F.W. (author), Bijlsma, J.W.J. (author), TNO Preventie en Gezondheid (author)This study examines the quality of life (QOL) of community living elderly people aged 55-74 with chronic, episodic or sporadic pain in the hip or knee and of a reference group without pain (total n = 306). Firstly, it was hypothesized that the experienced QOL is lower in people with more chronic pain. Secondly, the potential mediating and...article 1997
- document
-
Papp, Z. (author), Technisch Physische Dienst TNO - TH (author)The paper presents a nonlinear identification scheme, which consists of a linear dynamical section (filter) and a nonlinear zero-memory section (implemented by a fuzzy mapping). Only the filter section is on the primary signal path. The nonlinear mapping (depending on the system input and state) delivers the filter parameters. The identification...conference paper 1997
- document
-
Hopman-Rock, M. (author), Odding, E. (author), Hofman, A. (author), Kraaimaat, F.W. (author), Bijlsma, J.W.J. (author), TNO Preventie en Gezondheid (author)Objective. To determine physical and psychosocial disability in subjects aged 55 to 74 years living in the community, in relation to pain in the hip and/or knee, and to explore the relationships between pain, physical and psychosocial disability, and selected background variables. Methods. A subsample from a community based study on pain,...article 1996
- document
-
Groen, E. (author), de Graaf, B. (author), Bles, W. (author), Bos, J.E. (author), TNO Technische Menskunde (author)To assess a possible otolith contribution to effects observed following prolonged expo-sure to hyper gravity, we used video-oculography to measure ocular torsion during static and dynamic conditions of lateral body tilt (roll) before and after one hour of centrifugation with a Gx-load of 3G. Static tilt (from 0 to 57 deg. to either side) showed...article 1996
- document
- van der Horst, A.R.A. (author), TNO Technische Menskunde (author) report 1995
- document
-
Papp, Z. (author), Driessen, B.J.F. (author), Technisch Physische Dienst TNO - TH (author)The paper presents an adaptive nonlinear (state-) feedback control structure, where the nonlinearities are implemented as smooth fuzzy mappings defined as rule sets. The fine tuning and adaption of the controller is realized by an indirect adaptive scheme, which modifies the parameters of the fuzzy mapping. The performance index gradients are...conference paper 1995