全部文献期刊会议图书|学者科研项目
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作者:... Yoshihisa Kodama , Hiroshi Anai , Akihiro Hamanaka
来源:[J].CardioVascular and Interventional Radiology(IF 2.138), 2018, Vol.41 (7), pp.1043-1048Springer
摘要:Abstract(#br) Purpose(#br)A prospective multicenter phase I/II trial was performed to evaluate the clinical safety and efficacy of radiofrequency ablation (RFA) for metastatic bone tumors.(#br) Materials and Methods(#br)Thirty-three patients (27 men, 6 women, mean age 61 yea...
作者:Akihiro Hamanaka , Ken-ichi Itakura ...
来源:[J].Applied Energy(IF 4.781), 2018, Vol.223, pp.82-92Elsevier
摘要:Abstract(#br)In this study, to better simulate underground coal gasification (UCG), an artificial coal seam was constructed to use as a simulated underground gasifier, which comprised coal blocks excavated from the coal seam. This study reports the process and results of three in...
作者:Akihiro Hamanaka , Takashi Sasaoka
来源:[J].International Journal of Mining, Reclamation and Environment(IF 0.392), 2014, Vol.28 (2), pp.133-148Taylor & Francis
摘要:In underground coal mines, floor heave is a major problem that is caused by groundwater, high strata stress and weak floors. Controlling the stability of the roadways is the key to maintaining the safety and efficiency of underground mining. Appropriate cement grouting is an...
作者:... Takashi Sasaoka , Akihiro Hamanaka , Kikuo Matsui
来源:[J].International Journal of Mining, Reclamation and Environment(IF 0.392), 2013, Vol.27 (3), pp.166-179Taylor & Francis
摘要:To improve the resources’ recovery ratio and the economic benefits of surface coal mines, we present a residual coal extraction technology from final end-walls with highwall mining system in China. Based on Mark–Bieniawski formula and tributary area theory, the evaluation me...
作者:... Hideki Shimada , Takashi Sasaoka , Akihiro Hamanaka
来源:[J].Sustainability, 2017, Vol.9 (10)DOAJ
摘要:Stability of the retained goaf-side gateroad (RGSG) is influenced mainly by the movements of the roof strata near coal seam after coalface passes by. To make effective controlling technology for the stability of the RGSG, we analyze the roof structure over the RGSG to illustrate ...
作者:Akihiro Hamanaka , Takashi Sasaoka ...
来源:[J].Plant, Soil and Environment(IF 1.113), 2019, Vol.65, pp.181-188CAAS
摘要:Soil erosion is one of the major environmental problems in open-cut mines in tropical regions. It causes negative impacts including the removal of nutrient-rich topsoil, destroys aquatic habitat, dam and pond siltation, clogs river by deposition of sediment, and causes water poll...
作者:... Sugeng Wahyudi , Takashi Sasaoka , Akihiro Hamanaka
来源:[J].International Journal of Geosciences, 2018, Vol.9 (6), pp.379-396Scientific Research Publishing
摘要:In next two years, the current waste dump of Narynsukhait coal mine is predicted insufficient to accommodate the overburden as limited of the waste dump capacity. Thus, redesigning waste dump is paramount to increase capacity of the dump in future. This paper describes curre...
作者:Akihiro Hamanaka , Sugeng Wahyudi
来源:[J].International Journal of Geosciences, 2018, Vol.9 (9), pp.547-571Scientific Research Publishing
摘要:Stability assessment is one of the most important issues in mining ground control. Mine development and/or production instability can cause production delay, loss of reserves, as well as injury to miners. Within the scope of this study, a series of open stope’s instability u...

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