Biomedical subjects

Holger Luczak

Publications and source records attributed to Holger Luczak.

4 recordsLinked to original sources

PubMed2003

Development of error-compensating UI for autonomous production cells.

This contribution deals with the impact of human error on the overall system reliability in flexible manufacturing systems (FMS). Autonomous production cells are used to illustrate an error-compensating system design on the basis of Sheridan's (1997) paradigm of supervisory control. In order to specify human errors and their effects in terms of system disturbances, a taxonomy of system disturbances is recommended. This taxonomic approach was derived by a value benefit analysis and is based on HEDOMS (Human Error and Disturbance Occurrence in Manufacturing Systems) with slight modifications and Reason's GEMS (Generic Error Modelling System). The taxonomy is used for data acquisition. Next, a risk priority equivalent to FMEA (Failure Mode and Effect Analysis) is introduced to structure the data according to their relevance. Then, Vicente's and Rasmussen's guidelines (1987) for an ecological interface design are related to the paradigm of supervisory control. On the basis of these guidelines four case studies are presented to show their successful applicability for interface design in FMS.

Classification↗

PubMed2003

Comparison between the strain indicator HRV of a head-based virtual retinal display and LC-head mounted displays for augmented reality.

Augmented Reality uses Head Mounted Displays (HMD) to overlay the real word with additional virtual information. Virtual Retinal Displays (VRD), a new display technology, no longer requires Liquid Crystal Displays (LCD). VRD technology addresses the retina directly with a single laser stream of pixels. There are no studies on the user's informational strain in this new VRD technology. Various papers have shown that Heart Rate Variability (HRV) is a valid indicator for the user's informational strain. An empirical test revealed no difference in the user's HRV between VRD technology and LCD technology. Consequently, there seems to be a comparable user informational strain regarding the display types.

Adult↗

PubMed2002

Trends of research and practice in "occupational risk prevention" as seen in Germany.

Hypothesis and scenarios of future developments in ORP and ORP research are derived. Based on an analysis of events in the past, on the content and process of research projects in the German "humanization" program, on literature analysis and expert interviews 19 anamnesis to diagnosis relationships are formulated concentrating on the following topics: 1. Innovation potentials and value systems of ORP research, 2. Fields and topics of ORP research of the future, 3. Service-oriented systems of actors in ORP, 4. Demands and limits for research transfer. So the creative potential of the ORP community in Germany was used to conclude on recommendations for ORP developments.

Accidents, Occupational↗

PubMedDate not supplied

Let's talk: anthropomorphization as means to cope with stress of interacting with technical devices.

This study is concerned with the anthropomorphization of technical devices and the resulting influence on human-machine interaction; a special focus is on the verbal interaction between human and machine. Questions included: why do people regard technical devices as humans, when do they do so and how do they perceive their own dialogue and other persons' dialogues with technical devices? Correlation coefficients were calculated between the amount of displayed anthropomorphism and subjects' personality structure, fear of technical devices and self-rated technical competency. A subsequent regression analysis revealed that extraversion and gender of the respondents significantly predicted the amount of interaction with technical devices. Regression analysis showed that neuroticism and agreeableness significantly predicted self-rated technical competency. Technical devices that were seen as helpers or friends were generally treated less unfriendly than devices perceived as merely tools. The findings are discussed in the context of emotion and stress at work and the usability of technical devices.

Adaptation, Psychological↗