General PrefaceConference Organizers, Sponsor, AdvisorsCo-SponsorsSupporting SponsorsContents of Each VolumeNames of Symposia and Organizing CommitteesPart ASymposium KEnvironment Conscious Materials Ecomaterial Symposium Supporting Sponsors Preface Advisory Committee Organizing Committee I. Concept of Ecomaterial Natural Resources or the Environment: Which Does Control the World Population? Intelligent Materials Minimizing Environmental Load New Materials Research to Develop Environment Conscious Materials (Ecomaterials) Perturbations of Carbon Cycles in Closed Ecological Systems Green Materials for Global Atmosphere Conservation and Abundant Energy Supply Power Generation by Tide and Tidal Current Biosensors and Micromachining Role of Materials in Problem of Energy Supply Urban Warming and Future Metropolis Building a Model Society for Environmental Preservation (a Proposal from the Yamagishi Association) II. Design for Environment and LCA Design for Environment Life Cycle Analysis Tools for Life Cycle Assessment and Ecodesign A Comprehensive Methodological Scheme for Product Life Cycle Assessment (PLCA) Plastics on the Environmental Scales by Life-Cycle Analysis A New Method for Eco-Balance Assessment Using Life-Cycle Assessment to Minimize Environmental Impact Proposed Recyclability System for Products Evaluation of Recycle Loops by Energy Equivalent and a Concept of Entropy III. Recycling III.1. Design for Recycling and Recyclable Materials The Archaeology of Modern Landfills: Cultural-Material Contents Over Time Deposition and Suspension of Sludge at Lake Bottom Due to Lake Current Induced by Wind Design for Recyclability Design and Evaluation for High Recyclable Products and Estimation of its Recyclability Thermo-Reversible Recording Media A Design Concept for Recyclable Materials with High Quality Design of Alloy Systems Suitable for Recycling Shaped Up Materials - A New Design Concept of Environmental Conscious Heat Resistant Steels Recycling of Composite Materials, Present Problems and its Future Porous Clay-Fiber Composite: A Potential Substitute for Foamed Styrol III.2. Recycling of Metals Recycling of Metals in Korea Recycling of Precious Metals Recovery Technologies of Metals from Mine Drainage and Possibility for Some Applications Recycling Engineering and Alloy Design for Alloys with Costly Strategic Elements Recycling Technology of Titanium Alloy Scraps Removal of Copper from Iron Scraps by Ammonia Leaching Tin Removal from Tinplate by Sulfurization Energy Saving of Metal Containers and it's Future Trend in Japan Influence of Paint on Recycling of Aluminum Used Beverage Cans Recycling of Electric Materials Recovery of Valuable Metals from Printed Wiring Board Wastes. (1) Magnetic Separation of Printed Wiring Board Wastes Recovery of Valuable Metals from Printed Wiring Board Wastes. (2) Hydrometallurgical Treatment of Printed Wiring Board Wastes III.3. Recycling of Inorganic Materials Development of Light Weight Returnable Glass Bottles Present Situation and Prospect of Catalyst Recycling in Japan New Processing of Modification of Asbestos Fundamental Study for Utilization of Hydraulic Mixture of Reducing Slag and Waste by Producing Titanium Oxide Manufacturing of Artificial Lightweight Aggregate Utilizing Coal Fly Ash (Recycling Technology of Waste Material) Non-Combustive Gasification and Renewal of KOH-Impregnated Fuel Soot Resource Recycling and Industrial Waste Treatment of the Dowa Mining Co., Ltd.