多様な業界で映像による購入行動への効果が実証されていることから，

The exiting type of katakana alongside the English lyrics for Karaoke is fardifferent from its phonetic realization of the original song phrase. Under these circumstances, we proposed a new katakana system which approaches the real rhythm and phonetic realization of the original English songs. In so doing, we attempted to reconcile the trade-offs among the phonetic reproducibility, visibility, and affinity so that Japanese learners or singers may have less cognitive load and entertain themselves to have a feeling of self-efficacy. We also report an experiment to verify the effects of our new katakana system on the improvement of pronunciation through singing exercise. The results of the evaluations by five raters in terms of six phonetic evaluation items show that singing the target song along with the new katakana five times leads to better phonetic performance in most of the evaluation items. The results of the questionnaire also support the effectiveness and validity of our new katakana system, suggesting that it may help learners sing or read aloud English phrases and sentences more fluently with greater confidence and motivation

本論文は中央定位するヴォーカル信号に伴奏信号が加わったステレオ楽曲信号から，ステレオ型

An analysis is offered on the relationship between traceability and sharing economy. Here, sharing economy is synonymous with "expansion of the right of use sales (as opposed to ownership)-oriented business model." Traceability is defined as "a state where the principle owner of property rights or product liability for some physical or intellectual property is able to continuously confirm the state of the property and who is using it." Under low traceability environments, businesses have no choice but to use the right of ownership sales-oriented business model. However, if advances in ICT realize high traceability environments, they will be able to adopt a model in which products are not sold and transferred, but in which only use rights are granted for a specified time in various form including rentals. Impact of barcodes and mobiles devices are analyzed to illustrate how traceability increased the level of sharing in supply chains.