منابع مشابه
To Ski or Not to Ski on Replaced Hips
A report on two friends Since the outbreak of peace and prosperity in Europe forty years ago skiing has become one of the most popular pastimes , and now many of its ageing devotees have had their hips replaced, they are still sound in wind, are they also sound in limb? They feel physically restored, the snows and the slopes beckon, should they accept the challenge or should 'wiser councils pre...
متن کاملModeling of the Ski-Snow Contact for a Carved Turn
Carved turns with alpine skis are investigated. During the movement of a ski, snow is loaded and unloaded. Compacted snow is not elastic, i.e. deformations remain. Such effects are modeled by a hypoplastic constitutive equation. During a turn the shovel digs into the snow and the tail maintains nearly the same penetration depth as the part under maximum load. This results in a higher resistance...
متن کاملSki injury predictive analytics from massive ski lift transportation data
Ski injury research is traditionally studied on small-scale observational studies where risk factors from univariate and multivariate statistical models are extracted. In this article, a large-scale ski injury observational study was conducted by analyzing skier transportation data from six consecutive seasons. Logistic regression and chi-square automatic interaction detection decision tree mod...
متن کاملGeneralizations of Ski-Rental
Suppose you want to start a new hobby: skiing. In the ski shop, they give you the options to either rent skis or buy skis. If you know a priori how many days you will be skiing, then you can easily compute whether you should rent or buy right from the first day. This is an example of offline problems—all information is given at once, even future information. In the real world, you would not kno...
متن کاملThe influence of ski helmets on sound perception and sound localisation on the ski slope.
OBJECTIVES The aim of the study was to investigate whether a ski helmet interferes with the sound localization and the time of sound perception in the frontal plane. MATERIAL AND METHODS Twenty-three participants (age 30.7±10.2) were tested on the slope in 2 conditions, with and without wearing the ski helmet, by 6 different spatially distributed sound stimuli per each condition. Each of the ...
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ژورنال
عنوان ژورنال: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
سال: 2002
ISSN: 0387-5024,1884-8354
DOI: 10.1299/kikaic.68.2301