468,256 Works

Le renouveau de la piraterie internationale

Amélie-Anne Flagel
En 2012 sévissent encore des pirates sur les mers du globe. Alors qu’on les pensait moribonds ou noyés dans la masse des terroristes, les pirates ont fait une réapparition marquée sur la scène internationale et dans les préoccupations des juristes. L’enjeu est d’adapter le droit international, consensuel et souple, aux obligations qui naissent fatalement de la répression d’une infraction internationale. La tâche est difficile car c’est la recherche d’un équilibre entre un ordre juridique contraignant...

La vision de l’espace littoral sur l’île Wallis et l’atoll Rangiroa dans le contexte du changement climatique : Une analyse anthropologique de la perception des populations locales

Elisabeth Worliczek
Ce travail de thèse analyse la perception locale des changements de l’environnement, et plus précisément, celle du changement climatique. Les deux terrains étudiés sont l’île de Wallis (Wallis et Futuna) et l’atoll de Rangiroa (Polynésie Française), qui se distinguent par leur géomorphologie et leur organisation sociale, bien que faisant partie, toutes deux, de l’ensemble francophone du Pacifique sud et de la région culturelle polynésienne. Il s’agit de comprendre la vision de la population locale sur...

Caractérisation Biochimique et Moléculaire de Mécanismes de la Germination d’Espèces Endémiques de Nouvelle-Calédonie

Matthieu Villegente
La Nouvelle-Calédonie possède une flore riche, diverse et unique au monde. Sa forte endémicité (74,7%) résulte en partie de l’origine gondwanienne de la flore et de la forte pression de sélection exercée par les sols ultramafiques, riches en éléments traces métalliques, dont le nickel. Si cet élément fait la richesse du pays par son exploitation minière, cette dernière, ainsi que l’anthropisation du territoire engendrent une détérioration des écosystèmes. Dans le cadre de la dynamique mondiale...

Implementation and Perceptual Evaluation of a Simulation Method for Coupled Rooms in Higher Order Ambisonics

Giso Grimm, Torben Wendt, Volker Hohmann & Stephan D Ewert
A fast and perceptively plausible method for rendering acoustic scenarios with moving sources and moving listeners is presented. The method is principally suited for application in dynamic and interactive evaluation environments (e.g., for hearing aid development), psycho-physics with adaptively changing the spatial configuration, or simulation and computer games. The simulation distinguishes between the direct sound, sound reflected and diffracted by objects of limited size, diffuse sound surrounding the listener, e.g., diffuse background sounds and diffuse...

Interactive Acoustic Virtual Environments Using Distributed Room Acoustic Simulations

Frank Wefers, Jonas Stienen, Sönke Pelzer & Michael Vorländer
This publication presents how the computational resources of PC clusters can be used to realize low-latency room acoustic simulations for comprehensive virtual scenes. A benefit is not only to realize more complex scenes (including a multitude of sound sources, acoustically coupled-rooms with sound transmission), but also to minimize the system response times for prototyping applications (e.g. interactive change of materials or geometry) in simpler applications. PC clusters prove to be a suitable platform for room...

Exploration of a Biologically Inspired Model for Sound Source Localization In 3D Space

Symeon Mattes, Philip Nelson, Filippo Fazi & Michael Capp
Sound localization in 3D space relies on a variety of auditory cues resulting from the encoding provided by the lower and higher regions of the auditory path. During the last 50 years different theories and models have been developed to describe psychoacoustic phenomena in sound localization inspired by the processing that is undertaken in the human auditory system. In this paper, a biologically inspired model of human sound localization is described and the encoding of...

The Impact of the White Noise Gain (WNG) of a Virtual Artificial Head on the Appraisal of Binaural Sound Reproduction

Eugen Rasumow, Matthias Blau, Martin Hansen, Simon Doclo, Steven Van De Par, Volker Mellert & Dirk Püschel
As an individualized alternative to traditional artificial heads, individual head-related transfer functions (HRTFs) can be synthesized with a microphone array and digital filtering. This strategy is referred to as "virtual artificial head" (VAH). The VAH filter coefficients are calculated by incorporating regularization to account for small errors in the characteristics and/or the position of the microphones. A common way to increase robustness is to impose a socalled white noise gain (WNG) constraint. The higher the...

Wind-up system for a Lever Operated Pivoting Float-Buoy

A. A. Frederiksen, A. G. Andersen, K. J. Juul, M. L. Bernitt, P. R. Nielsen & R. Katkjær
INTRODUCTION The project that this abstract revolves around is being prepared in connection with the course Project Work (41801) and focuses on the construction of a wind-up system for a Lever Operated Pivoting Float-buoy (LOPF) in cooperation with Resen Waves. The purpose of the buoy is to transform energy from waves in the ocean to electrical energy. The system is put in place to allow for the buoy to move with the waves in the...

Evalueringsrapport i projekt ”Fra begreb til bundlinje - hvordan øger vi den relationelle koordinering?”

Kasper Edwards

Relational Coordination in Danish General Practice

Sanne Lykke Lundstrøm

Proceedings of the First Internatinal Symposium of Robust Design 2014

Thomas J. Howard & Tobias Eifler

ISoRD14 Introduction: Robust Design Research at DTU

Thomas J. Howard

Sensitivity Analysis of Tolerances which Restrict Multiple Similar Features

Philipp Ziegler & Sandro Wartzack
In tolerancing, the product functions and quality should be ensured in the presence of geometric variations of the product components. For this purpose, tolerances restrict these geometric variations. Usually, the products functions are transferred to so-called functional key characteristics (FKC), which mostly are geometric quantities of the product. The requirements on the products functions are transferred to requirements of the FKCs. Afterwards, geometric analyses of the FKC variations are performed based on tolerance simulations. These...

Human factors specialists to the rescue for (other) systems designers – case study in railway

It is a challenge for human factors professionals to be seen as a colleague system designer of man-machine systems. Mostly, they are consulted for detailed user interface design. However, in this design phase fundamental questions about task allocation necessary for an optimal man-machine interface are cut short. This case describes the development of a warning system for train drivers to illustrate the role of the human factors specialist. The original question for the warning system...

Conceptualizing the patient work system, Part B: macroergonomic challenges

Richard J. HOLDEN & Rupa S. VALDEZ

Total Workplace Innovation


Does physical activity at work impact physical activity behavior in leisure time?


Water and sewage treatment workers differences in psychosocial and ergonomics assessment

Denis A. COELHO, Carla S. D. TAVARES & Miguel L. LOURENÇO
Sewage treatment, water treatment and maintenance workers from a utility company, totaling 32 male subjects, participated in a cross-sectional psychosocial and ergonomics assessment. The Washington State Department of Labor and Industries field work ergonomic checklist and the short version Copenhagen Psychosocial Questionnaire (CoPsoQ) were used. The analysis tested the hypothesis that sewage treatment workers, subjected to foul odors, show higher severity of psychosocial factors than water treatment workers. Odds ratios for the sewage treatment condition...

Visualizing improvements of care processes- supporting engagement and perceived systems performance in improvement work


Organisational challenges associated with design and implementation of technology in re-design projects in the nuclear domain

Anna-Lisa OSVALDER & Håkan ALM
A complex socio-technical system needs to optimize on safety when designing the human-machine systems. The purpose of this study was to learn about organisational challenges in redesign projects in the nuclear domain. Interview results showed that stakeholders had focus on either technology driven or human factors driven design. A conclusion was that all project members need knowledge and understanding of human factors aspects; these need to be highlighted both in planning and during the whole...

New ways of working and quality of working life: a macroergonomic approach

Christian KORUNKA & Cornelia GERDENITSCH
“New ways of working” (NWW) environment is a denotation for modern workplaces that are characterized by an increased use of media technologies, and temporal and spatial flexibilities. In three empirical studies, the role of job resources (autonomy and social interaction) in NWW environments was investigated. Study 1 examined general NWW environments using qualitative data, whereas studies 2 and 3 focused on specific NWW environments (flexible office concepts, Coworking Spaces). The results indicate that autonomy and...

On the IEA strategy: mapping HFE performance knowledge

Linda ROSE & Christina JONSSON
In order to support the implementation of the IEA strategy of Human Factors/Ergonomics (HFE) the objective of this pilot-project is to map the current awareness, knowledge and strategies regarding how HFE can be used in optimizing system performance and how and to what extent such strategies are applied in organisations today. The methodology used is that each board member of the Nordic Ergonomics Society´s national boards has a talk with a key stakeholder, using a...

The potential benefits of an exoskeleton in industry settings

Michiel DE LOOZE & Leonard O’SULLIVAN

Multifunctional cooperation with purpose to reduce ergonomic risks. A practical case


Use of CCTV in remote operations and remote support of oil and gas fields to improve safety and resilience

CCTV is increasingly used in the oil and gas industry to assist in remote operations and remote support. This is done to achieve safety and resilience. The CCTV system is a complex component, consisting of technology (screens, cameras, workplaces), humans (operators observing and analyzing information) and organizational factors (procedures, responsibilities, staffing). We have examined the use of CCTVs in three actual oil and gas installations on the Norwegian continental shelf, in order to identify the...

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  • 2014

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  • Text