div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: · aspect of cost The authors thank Professor Kousuke Horikawa of Osaka University for his direct guidance and also thank Emeritus Professor Toshie Okumura of Tokyo src=https:reader030vdocumentssitereader030viewer20220407105e0f6ee101da9e62c66bdf14html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: · aspect of cost The authors thank Professor Kousuke Horikawa of Osaka University for his direct guidance and also thank Emeritus Professor Toshie Okumura of Tokyo src=https:reader030vdocumentssitereader030viewer20220407105e0f6ee101da9e62c66bdf14html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 3button div class=ts-image amp-img class=ts-thumb alt=Page 3: · aspect of cost The authors thank Professor Kousuke Horikawa of Osaka University for his direct guidance and also thank Emeritus Professor Toshie Okumura of Tokyo src=https:reader030vdocumentssitereader030viewer20220407105e0f6ee101da9e62c66bdf14html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 4button div class=ts-image amp-img class=ts-thumb alt=Page 4: · aspect of cost The authors thank Professor Kousuke Horikawa of Osaka University for his direct guidance and also thank Emeritus Professor Toshie Okumura of Tokyo src=https:reader030vdocumentssitereader030viewer20220407105e0f6ee101da9e62c66bdf14html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 5button div class=ts-image amp-img class=ts-thumb alt=Page 5: · aspect of cost The authors thank Professor Kousuke Horikawa of Osaka University for his direct guidance and also thank Emeritus Professor Toshie Okumura of Tokyo src=https:reader030vdocumentssitereader030viewer20220407105e0f6ee101da9e62c66bdf14html5thumbnails5jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 6button div class=ts-image amp-img class=ts-thumb alt=Page 6: · aspect of cost The authors thank Professor Kousuke Horikawa of Osaka University for his direct guidance and also thank Emeritus Professor Toshie Okumura of Tokyo src=https:reader030vdocumentssitereader030viewer20220407105e0f6ee101da9e62c66bdf14html5thumbnails6jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 7button div class=ts-image amp-img class=ts-thumb alt=Page 7: · aspect of cost The authors thank Professor Kousuke Horikawa of Osaka University for his direct guidance and also thank Emeritus Professor Toshie Okumura of Tokyo src=https:reader030vdocumentssitereader030viewer20220407105e0f6ee101da9e62c66bdf14html5thumbnails7jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 8button div class=ts-image amp-img class=ts-thumb alt=Page 8: · aspect of cost The authors thank Professor Kousuke Horikawa of Osaka University for his direct guidance and also thank Emeritus Professor Toshie Okumura of Tokyo src=https:reader030vdocumentssitereader030viewer20220407105e0f6ee101da9e62c66bdf14html5thumbnails8jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 9button div class=ts-image amp-img class=ts-thumb alt=Page 9: · aspect of cost The authors thank Professor Kousuke Horikawa of Osaka University for his direct guidance and also thank Emeritus Professor Toshie Okumura of Tokyo src=https:reader030vdocumentssitereader030viewer20220407105e0f6ee101da9e62c66bdf14html5thumbnails9jpg width=142 height=106 layout=responsive amp-img divdiv