Precise identification and threshold inversion of pores and fissures in CT digital coal rock based on Bi-PTI model [PDF]
, 2023 In the research area of the CT digital coal petrography, the selection of gray threshold directly affects the accuracy of spatial structure remodeling. To allow the pores and fissures space remodeling data to more accurately represent the real structure ...
Bo ZHAO +5 more
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, 2014 本文主要探討臺灣板岩順向坡變形特性，藉由現場調查、地形分析與物理模型試驗說明板岩不同條件下之重力變形特性，並推估板岩變形過程與潛在崩壞機制。結果顯示，坡趾侵蝕透空與降雨入滲機制為板岩變形之關鍵，其將造成板岩材料強度弱化加速發生變形。此外，板岩變形初始發生於崖頂張力區，坡體將沿著高角度葉理滑移，並於侵蝕弱化帶附近形成剪切破壞或複合型破壞。而變形範圍內具有相當多葉理張開之現象，其將有助於地表水與地下水滲入，促使板岩變形區加速變形至崩壞。This paper focuses on characterizing
Chia-Ming Lo +7 more
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Micro pore characteristics of Luohe aquifer sandstone in Binchang Mining Area typical roof water hazard mines [PDF]
, 2023 The mining of Huanglong Coalfield faces a serious threat from roof sandstone water disaster of the extremely thick Luohe Formation. A laboratory study on the microscopic pore characteristics of the sandstone of the Luohe Formation in the Gaojiapu Coal ...
Chaofeng LI +4 more
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Study on pedogenesis and characteristics of Red-Yellow soils in Luzon island, Philippines [PDF]
, 1998 Thesis (Ph. D. in Agriculture)--University of Tsukuba, (A), no.
Montesur Jaime Gabalones
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Preparation and characteristic of poly(piperazine-amide) hollow fiber composite nanofiltration membrane and the effect of additives [PDF]
, 2015 纳滤膜技术作为现代分离技术的重要手段之一，其分离特性介于超滤膜和反渗透膜之间，独特的分离性能赋予纳滤膜技术在工业领域中广泛应用，尤其是在水处理、脱盐、食品工业、生物医药等方面。有许多的制备纳滤膜的方法，如L-S相转化法、合金共混法、复合法等，其中复合法又分为涂覆法、表面接枝改性法、层层自组装法、界面聚合法，界面聚合法是目前商业化纳滤膜的主要制备方法。 本课题采用界面聚合法，在聚醚砜（PES）中空纤维超滤膜上制备复合纳滤膜，选用制备商业化复合纳滤膜广泛使用的聚合单体哌嗪（PIP）和均苯三甲酰氯（TMC ...
朱奇
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Exploration on the surface water leakage mechanism of travertine pools in Salix cupularis shrub area of Huanglong Scenic Spot, Sichuan Province [PDF]
Recently, some travertine landscape groups in Huanglong Scenic Spot have been degraded to varying degrees. Surface water leakage, blackening and desertification have occurred on a large scale in the dense distribution area of Salix cupularis shrub, which
Dong SUN +8 more
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Fabrication of Porous Polymer Materials via Supercritical Fluid Process [PDF]
, 2016 聚合物多孔材料集成了多孔材料和聚合物的优点及性能，如较高的比表面积、易加工成型、合成方式多样等，一直是研究者关注的焦点。传统的聚合物多孔材料制备方法在制备过程中使用了大量的有机溶剂，对环境造成严重污染。超临界流体以其优良的性质，可作为替代溶剂应用于聚合物的合成与处理领域。 本论文中我们利用超临界流体选择性溶胀以及与超交联结合的方法成功制备了聚合物多孔膜以及多级孔膜，主要研究内容和结果如下： 在聚苯乙烯溶液中加入非离子型表面活性剂浇铸成膜，用超临界二氧化碳膨胀甲醇流体处理得到多孔结构 ...
王浩综
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Sensitive neighborhood range of red sandstone under rheological disturbance condition [PDF]
Under the action of disturbance load, the rheological rock mass in the “sensitive neighborhood” is prone to deformation and failure. In order to study the influence of confining pressure on the range of disturbance “sensitive neighborhood”, the red ...
Bo WANG +7 more
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Dynamic evolutionary patterns of high-temperature steam seepage and thermal strains of coals during heat injection [PDF]
Background Thermal stimulation of coal seams using high-temperature steam is recognized as a highly promising technology used to increase gas production.
Jinsheng CHEN +6 more
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Effect of core wettability on seepage characteristics during CO2 saline aquifer sequestration process [PDF]
To clarify the influence of core wettability on the seepage process during the CO2 saline aquifer storage, this paper studies the influence of wettability change in the saline aquifer on the seepage process based on the pore-level seepage model combined ...
Fusheng XUE +4 more
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