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Understanding the Strategies of Mining Giants by Modern Portfolio Theory 用现代投资组合理论理解矿业巨头的投资策略
Shigen-to-sozai Pub Date : 2017-01-01 DOI: 10.2473/JOURNALOFMMIJ.133.207
Kazuharu Sasaki, Shinsuke Murakami
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引用次数: 0
Passivation Behaviour of Anode in Copper Electrorefining Using Recycled Low-grade Copper Anode 回收低品位铜阳极电精炼中阳极的钝化行为
Shigen-to-sozai Pub Date : 2017-01-01 DOI: 10.2473/JOURNALOFMMIJ.133.165
Koudai Tokushige, K. Mori, S. Oue, H. Matsushima, Kazunari Suzuki, Hiroaki Nakano
{"title":"Passivation Behaviour of Anode in Copper Electrorefining Using Recycled Low-grade Copper Anode","authors":"Koudai Tokushige, K. Mori, S. Oue, H. Matsushima, Kazunari Suzuki, Hiroaki Nakano","doi":"10.2473/JOURNALOFMMIJ.133.165","DOIUrl":"https://doi.org/10.2473/JOURNALOFMMIJ.133.165","url":null,"abstract":"Cu electrolysis was performed using low-grade copper anode with purity 78.7 mass% at a anode current density of 200 A ・ m -2 in an unagitated sulfate solution containing 0.596 mol ・ dm -3 of Ni 2+ ions as impurity at 60 ℃ , and the structure of anode slime before and after passivation was analyzed. The highly-concentrated Sb, Pb and Ag were dispersed in copper anode before electrolysis. The passivation occurred at short time of 17.7 hours in the case of low-grade copper anode, and it occurred at shorter time of 11.4 hours in the solution containing Ni 2+ ions as impurity. At normal dissolution of copper anode, copper parent phase dissolved in the form of dendrite and the framework of anode slime was composed of remained Cu-Ni-Sb-Sn-As compound. Cu 2 S and single phase of Ag and Pb were observed around this framework. At passivation, Cu, Ni and Sn dissolved from the slime framework composed of Cu-Ni-Sb-Sn-As compound, resulting in formation of Sb condensed phase. These Cu-Ni-Sb-Sn-As compound, Sb condensed phase, Cu 2 S compound around the slime framework, Ag and needle-shaped PbO dotted in the whole slime suppressed the diffusion of Cu 2+ ions, as a result, CuSO 4 was formed at interface between the slime and copper substrate. The passivation occurred at slime thickness of approximately 500 μ m in Ni 2+ -free solution, while it occurred at slime thickness of approximately 300 μ m in solution containing Ni 2+ ions. This indicates that the passivation do not depend on only the thickness of slime. The thickness of CuSO 4 formed at passivation in Ni 2+ -free solution was almost identical with that from the solution containing Ni 2+ ions. In solution containing Ni 2+ ions, the passivation occurred at less thickness of slime, showing that CuSO 4 is easy to be formed in the vicinity of copper substrate due to decrease in solubility of CuSO 4 and diffusion coefficient of Cu 2+ ions.","PeriodicalId":21719,"journal":{"name":"Shigen-to-sozai","volume":"132 1","pages":"165-172"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85339738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Effect of Water Saturation on Stress-Strain Curve of Rocks in Uniaxial Compression 含水饱和度对岩石单轴压缩应力-应变曲线的影响
Shigen-to-sozai Pub Date : 2017-01-01 DOI: 10.2473/JOURNALOFMMIJ.133.107
M. Kataoka, Tianshu Bao, K. Hashiba, K. Fukui
{"title":"Effect of Water Saturation on Stress-Strain Curve of Rocks in Uniaxial Compression","authors":"M. Kataoka, Tianshu Bao, K. Hashiba, K. Fukui","doi":"10.2473/JOURNALOFMMIJ.133.107","DOIUrl":"https://doi.org/10.2473/JOURNALOFMMIJ.133.107","url":null,"abstract":"","PeriodicalId":21719,"journal":{"name":"Shigen-to-sozai","volume":"128 1","pages":"107-115"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85121456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Fine Sand of Blast-Furnace Slag on Freeze and Thaw Resistance, Sulfate Resistance and Sulfuric Acid Resistance of Mortar 高炉矿渣细砂对砂浆抗冻融性、抗硫酸盐性和抗硫酸性的影响
Shigen-to-sozai Pub Date : 2017-01-01 DOI: 10.2473/journalofmmij.133.151
Daiki Nakamura, Hidekazu Yamamoto, Yuto Tanakadate, S. Hanehara, T. Oyamada
{"title":"Effect of Fine Sand of Blast-Furnace Slag on Freeze and Thaw Resistance, Sulfate Resistance and Sulfuric Acid Resistance of Mortar","authors":"Daiki Nakamura, Hidekazu Yamamoto, Yuto Tanakadate, S. Hanehara, T. Oyamada","doi":"10.2473/journalofmmij.133.151","DOIUrl":"https://doi.org/10.2473/journalofmmij.133.151","url":null,"abstract":"","PeriodicalId":21719,"journal":{"name":"Shigen-to-sozai","volume":"64 1","pages":"151-156"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81123762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanical Stability Evaluation of Water-sealed Type Underground Rock Cavern Using Tilt Response to Gas Pressure Change in Cavern 利用倾斜对瓦斯压力变化的响应评价水封式地下岩洞室的力学稳定性
Shigen-to-sozai Pub Date : 2017-01-01 DOI: 10.2473/JOURNALOFMMIJ.133.98
Satoshi Hirooka, T. Yamaguchi, Toshifumi Watabe, Nobuya Yamamoto, Kunihiro Jodai, N. Yasuda, K. Tsukada, K. Koike, T. Asakura
{"title":"Mechanical Stability Evaluation of Water-sealed Type Underground Rock Cavern Using Tilt Response to Gas Pressure Change in Cavern","authors":"Satoshi Hirooka, T. Yamaguchi, Toshifumi Watabe, Nobuya Yamamoto, Kunihiro Jodai, N. Yasuda, K. Tsukada, K. Koike, T. Asakura","doi":"10.2473/JOURNALOFMMIJ.133.98","DOIUrl":"https://doi.org/10.2473/JOURNALOFMMIJ.133.98","url":null,"abstract":"","PeriodicalId":21719,"journal":{"name":"Shigen-to-sozai","volume":"13 1","pages":"98-106"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81900557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical Study on Stratum Deformation during Dissociation Process of Methane Hydrate by Depressurization: – Prediction of Stratum Deformation Behavior in Methane Hydrate Reservoir, Part1 –@@@− メタンハイドレート貯留層の地層変形挙動予測に関する研究 (第1報) − Numerical Study on Stratum Deformation during Dissociation Process of Methane Hydrate bydepressurization:—Prediction of Stratum Deformation Behavior in Methane Hydrate Reservoir,Part1 - @@@ -甲烷水合物贮层地层变形行为预测研究(第1报)
Shigen-to-sozai Pub Date : 2017-01-01 DOI: 10.2473/JOURNALOFMMIJ.133.12
Masayo Kakumoto, Y. Sakamoto, K. Miyazaki, N. Tenma, K. Aoki, Akira Takiguchi, T. Ishibashi, J. Mori
{"title":"Numerical Study on Stratum Deformation during Dissociation Process of Methane Hydrate by Depressurization: – Prediction of Stratum Deformation Behavior in Methane Hydrate Reservoir, Part1 –@@@− メタンハイドレート貯留層の地層変形挙動予測に関する研究 (第1報) −","authors":"Masayo Kakumoto, Y. Sakamoto, K. Miyazaki, N. Tenma, K. Aoki, Akira Takiguchi, T. Ishibashi, J. Mori","doi":"10.2473/JOURNALOFMMIJ.133.12","DOIUrl":"https://doi.org/10.2473/JOURNALOFMMIJ.133.12","url":null,"abstract":"","PeriodicalId":21719,"journal":{"name":"Shigen-to-sozai","volume":"87 1","pages":"12-24"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74487800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Hydrothermal Synthesis of Ce-doped BaZrO 3 Fine Particles and Their Three-way Catalytic Performance for Exhaust Gas Purification 水热合成掺铈bazro3微颗粒及其对废气净化的三向催化性能
Shigen-to-sozai Pub Date : 2017-01-01 DOI: 10.2473/journalofmmij.133.116
Yuki Seino, K. Kanie, A. Muramatsu
{"title":"Hydrothermal Synthesis of Ce-doped BaZrO 3 Fine Particles and Their Three-way Catalytic Performance for Exhaust Gas Purification","authors":"Yuki Seino, K. Kanie, A. Muramatsu","doi":"10.2473/journalofmmij.133.116","DOIUrl":"https://doi.org/10.2473/journalofmmij.133.116","url":null,"abstract":"","PeriodicalId":21719,"journal":{"name":"Shigen-to-sozai","volume":"17 1","pages":"116-122"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79450033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Success of the First Commercial Scale Geothermal Power Development in Japan; Matsukawa Geothermal Power Station 日本首个商业规模地热发电项目开发成功松川地热发电站
Shigen-to-sozai Pub Date : 2017-01-01 DOI: 10.2473/JOURNALOFMMIJ.133.214
M. Hanano
{"title":"Success of the First Commercial Scale Geothermal Power Development in Japan; Matsukawa Geothermal Power Station","authors":"M. Hanano","doi":"10.2473/JOURNALOFMMIJ.133.214","DOIUrl":"https://doi.org/10.2473/JOURNALOFMMIJ.133.214","url":null,"abstract":"","PeriodicalId":21719,"journal":{"name":"Shigen-to-sozai","volume":"84 1","pages":"214-222"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83835277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Investigation of Liquid Channeling in Heap by Tracer Test 用示踪剂试验研究堆中液体窜流
Shigen-to-sozai Pub Date : 2017-01-01 DOI: 10.2473/JOURNALOFMMIJ.133.270
T. Shinkawa, T. Chida, So Furukawa, Taro Kamiya
{"title":"Investigation of Liquid Channeling in Heap by Tracer Test","authors":"T. Shinkawa, T. Chida, So Furukawa, Taro Kamiya","doi":"10.2473/JOURNALOFMMIJ.133.270","DOIUrl":"https://doi.org/10.2473/JOURNALOFMMIJ.133.270","url":null,"abstract":"","PeriodicalId":21719,"journal":{"name":"Shigen-to-sozai","volume":"69 1","pages":"270-276"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84449523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Principle and Method of the Research Work in the Field of Engineering Science 工程科学领域研究工作的原则与方法
Shigen-to-sozai Pub Date : 2017-01-01 DOI: 10.2473/journalofmmij.133.34
Y. Nishimatsu
{"title":"Principle and Method of the Research Work in the Field of Engineering Science","authors":"Y. Nishimatsu","doi":"10.2473/journalofmmij.133.34","DOIUrl":"https://doi.org/10.2473/journalofmmij.133.34","url":null,"abstract":"","PeriodicalId":21719,"journal":{"name":"Shigen-to-sozai","volume":"70 1","pages":"34-44"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77603177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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