1,721,009 research outputs found
Influence of light directionality in different sky types on the non-image-forming effects of light
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Potential improvements of the location-bound estimations method in order to determine personal lighting conditions
No full textRaise the lantern:how light can help to maintain a healthy and safe hospital environment focusing on nurses
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Lighting in multi-user office environments:improving employee wellbeing through personal control
No full textSmarter lighting for life
Full text linkSunlight impacts many biological and psychological processes, including those governing people’s circadian rhythm and mental and physical health. But in modern societies people spend most of their time inside buildings. Designing building facades which provide optimal access to daylight
without introducing glare and high heating and cooling loads is a key challenge. For interior spaces, future artificial daylight solutions that mimic the essential characteristics of real windows or skylights are being investigated. But also there, balancing high light levels for health benefits with low energy consumption is a challenge. These conflicting requirements may be met by the application of Ambient Intelligence methods. Context-aware systems allow automatic adaptation of
environmental conditions to individual health, comfort or safety needs, while limiting energy use to relevant times and locations at the same time. This lecture outlines key opportunities and
challenges in this exciting field
Studies on user control in ambient intelligent systems
Full text linkPeople have a deeply rooted need to experience control and be effective in interactions with their environments. At present times, we are surrounded by intelligent systems that take decisions and perform actions for us. This should make life easier, but there is a risk that users experience less control and reject the system. The central question in this thesis is whether we can design intelligent systems that have a degree of autonomy, while users maintain a sense of control. We try to achieve this by giving the intelligent system an 'expressive interface’: the part that provides information to the user about the internal state, intentions and actions of the system. We examine this question both in the home and the work environment. We find the notion of a ‘system personality’ useful as a guiding principle for designing interactions with intelligent systems, for domestic robots as well as in building automation. Although the desired system personality varies per application, in both domains a recognizable system personality can be designed through expressive interfaces using motion, light, sound, and social cues. The various studies show that the level of automation and the expressive interface can influence the perceived system personality, the perceived level of control, and user’s satisfaction with the system. This thesis shows the potential of the expressive interface as an instrument to help users understand what is going on inside the system and to experience control, which might be essential for the successful adoption of the intelligent systems of the future
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