About OKAJIMA Shigeharu
About OKAJIMA Hiroko
About Pennsylvania State Univ., PA, USA
About Energy Policy
About strength
About regional difference
About Income
About elasticity (mechanical property)
About Japan
About Gross Domestic Product
About energy consumption
About energy efficiency
About management organization
About treaty
About discharge
About greenhouse effect gas
About carbon dioxide emissions
About energy intensities
About Kyoto Protocol
About carbon dioxide emission
About mechanical property
About regional difference
About elastic behavior
About gross domestic product
About sector
About Environmental problems
About Technical and economical problems on energy engineering
About 日本
About エネルギー強度
About 分析