We propose a concept of "audiolization of body movement," which transforms the posture/movement of the human body or human-controlled-tools into acoustic signals and feeds them back to the users in a real-time manner. It aims at helping people being aware of their body/tool states, and resultantly assisting their motor skill learning. The present paper describes features of the concepts and introduces some demonstrative applications.
Relationships between the degradation rate of the herbicide pyrazoxyfen (2-[4-(2, 4dichlorobenzoyl)-1, 3-dimethylpyrazol-5-yloxy]-acetophenone) and soil properties were investigated. In the experiment, pyrazol-3-14C-labeled and unlabeled pyrazoxyfens were incubated in five paddy soils under flooded and upland conditions. The degradation rate of pyrazoxyfen differed greatly according to the properties and conditions of soils. Pyrazoxyfen tended to degrade rapidly in mineral soils and slowly in humic volcanic ash soils with its halflife being 3-5 and 5-34 days, respectively. In the same soil, the degradation was faster under flooded conditions (half-life of less than 10 days) than under upland moisture conditions (half-life of 4-34 days). Under all the experimental conditions the degradation rate was negatively correlated with the cation-exchange capacity and the organic-matter content of a soil. The correlation was also negative with the CAN ratio and the maximum water holding capacity, but the correlation coefficient differed according to experimental conditions.
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