Timo Vuorela

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In smart homes, unobtrusive monitoring of user position and activity are important but challenging tasks. With the current state of technology, this task is especially hard to carry out in private areas where video surveillance is considered undesirable or even offensive. Even though some alternative methods for passive and unobtrusive monitoring of people(More)
This paper describes a design and implementation of a portable physiological signal recorder. The device is designed for measuring electrocardiography, bioimpedance, and user's activity. The bioimpedance measures the dynamic changes in the impedance, and its main application is monitoring user's respiration. Activity is measured with three-axis acceleration(More)
We study the structure and dynamics of spherical high density lipoprotein (HDL) particles through coarse-grained multi-microsecond molecular dynamics simulations. We simulate both a lipid droplet without the apolipoprotein A-I (apoA-I) and the full HDL particle including two apoA-I molecules surrounding the lipid compartment. The present models are the(More)
Cholesteryl ester transfer protein (CETP) transports cholesteryl esters, triglycerides, and phospholipids between different lipoprotein fractions in blood plasma. The inhibition of CETP has been shown to be a sound strategy to prevent and treat the development of coronary heart disease. We employed molecular dynamics simulations to unravel the mechanisms(More)
Elderly people with no or limited skills of using computers are in risk of social isolation as social life moves to the Internet. This paper describes the design process and implementation of a user interface and device for the elderly for a social networking application. The idea is that people with no previous experience on using computers are able to use(More)
A new method and a prototype system for optical tracking using camera sensors from Nintendo Wii remote controllers are introduced. The system is of very low cost and can easily be extended to cover large areas. By bypassing the native Bluetooth interface and increasing the image analysis rate, extraordinary real-time performance is achieved. To overcome(More)