K. I. Takahashi   M. Tsuda   J. Nakamura   K. Otabe   M. Tsuruoka   Y. Matsuno   Y. Adachi   
2009 IEEE International Symposium on Sustainable Systems and Technology, ISSST '09 in Cooperation with 2009 IEEE International Symposium on Technology and Society, ISTAS 2009年
The metals contained in various mobile phones were analyzed. More than 20 elements were detected and their net amounts were found to increase year by year. The environmental and economic impacts were assessed based on an elemental analysis. The CO...
Material in-use stock, which represents a future potential of material recovery and waste, is an important factor in analysis of resources recycling. In-use stock is usually estimated using some statistics. In developing countries, however, such s...
We developed a novel methodology to analyze world-scale stock-in-use of copper by using a nighttime light image. Radiance calibrated nighttime light imaged data (RCD) of the world has been assembled from the Defense Meteorological Satellite Progra...
2008 IEEE INTERNATIONAL SYMPOSIUM ON ELECTRONICS AND THE ENVIRONMENT 390-+ 2008年 [査読有り]
The environmental, social and economic impacts of videoconferencing in the USA and Japan were evaluated and compared quantitatively. For this purpose we used a new index, named the "Gross Social Feel-good (GSF) index", which was developed for eval...
PROCEEDINGS OF THE 2007 IEEE INTERNATIONAL SYMPOSIUM ON ELECTRONICS & THE ENVIRONMENT, CONFERENCE RECORD 1-+ 2007年 [査読有り]
In recent years, a growing number of companies have been using eco-efficiency as an indicator of environmental performance in Japan. In 2006, Japan Environmental Efficiency Forum developed the Information and Communications Technology (ICT) Eco-Ef...
<b>Objective.</b> The objective of this research is to analyze the environmental impact of printed matter using rice ink with the consideration of the impact of land use change and using reclaimed vegetable oil based on LCA method.<...