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| 1 | A comparison of the energy consumption and carbon emissions for different modes of transportation in open-cut coal mines显示文摘Transportation accounts for 80% of open-cut coal mine carbon emissions.With regard to the energy consumption and carbon emissions of transportation within an open-cut mine,this paper systematically compared the work and energy consumption of a truck and belt conveyor on a theoretical basis,and constructed a model to calculate the energy consumption of open-cut mine transportation.Life cycle carbon emission factors and power consumption calculation model were established through a Process Analysis–Life Cycle Analysis(PA–LCA).The following results were obtained:(1) the energy consumption of truck transportation was four to twelve times higher than that of the belt conveyor;(2) the CO2 emissions from truck transportation were three to ten times higher than those of the belt conveyor;(3) with the increase in the slope angle for transportation,the ratio of truck to belt conveyor for both energy consumption and carbon emissions gradually decreased;(4) based on 2013 prices in China,the energy cost of transportation using a belt conveyor in open-cut coal mines could save 0.6–2.4 Yuan/(t km) compared to truck transportation. | Liu Fuming Cai Qingxiang Chen Shuzhao Zhou Wei | 2015 | International Journal of Mining Science and Technology2015,25,2: | 12 |
| 2 | Zonal extraction technology and numerical simulation analysis in open pit coal mine显示文摘In order to enhance coal recovery ratio of open pit coal mines,a new extraction method called zonal mining system for residual coal around the end-walls is presented.The mining system can improve economic benefits by exploiting haulage and ventilation roadways from the exposed position of coal seams by utilizing the existing transportation systems.Moreover,the main mining parameters have also been discussed.The outcome shows that the load on coal seam roof is about 0.307 MPa and the drop step of the coal seam roof about 20.3 m when the thickness of cover and average volume weight are about 120 m and 0.023 MN/m 3 respectively.With the increase of mining height and width,the coal recovery ratio can be improved.However,when recovery ratio is more than 0.85,the average stress on the coal pillar will increase tempestuously,so the recovery ratio should also be controlled to make the coal seam roof safe.Based on the numerical simulation results,it is concluded that the ratio of coal pillar width to height should be more than 1.0 to make sure the coal pillars are steady,and there are only minor displacements on the end-walls. | Chen Yanlong Cai Qingxiang Shang Tao Peng Hongge Zhou Wei Chen Shuzhao | 2012 | International Journal of Mining Science and Technology2012,22,4: | 11 |
| 3 | Three-dimensional numerical simulation of methane drainage by high-level drill holes in a lower protective coal seam with a “U” type face显示文摘Different drill-hole positions may produce different drainage results in low protective coal seams.To investigate this possibility,a 3D stope model is established,which covers three kinds of drill holes.The FLUENT computational fluid mechanics software is used to solve the mass,momentum and species conservation equations of the model.The spatial distributions of oxygen and methane was obtained by calculations and the drainage results of different drill-hole positions were compared.The results show that,from top to bottom,methane dilution by oxygen weakens gradually from the intake to the return side,and methane tends to float;methane and oxygen distribute horizontally.The high-level crossing holes contribute to better methane drainage and a greater level of control.Around these holes,the methane density decreases dramatically and a 'half circle'distribution is formed.The methane density decreases on the whole,but a proportion of the methane moves back to deep into the goaf.The research findings provide theoretical grounds for methane drainage. | Xingkui Liu Shuzhao Yang | 2014 | International Journal of Coal Science & Technology2014,1,4: | 7 |
| 4 | Optimization of transport passage with dragline system in thick overburden open pit mine显示文摘According to the characteristics of opencast coal resources and dragline technology system application in China,the structure and shifting step of transport passage are optimized in this paper.Typical coal transport passage is analyzed in aspects such as the internal dump occupation,dragline operation efficiency,coal transport distance,upper stripping distance and shifting quantities.The middle passage should be given priority in thick overburden open pit mine because the dragline system is only responsible for part stripping task.According to characteristics of middle passage,the transport passage is divided into parallel climbing,vertical climbing and horizontal transport.In addition,the transport passage structure optimization model and shifting distance optimization model are established in this paper.The case study in Heidaigou open pit mine shows that,the parallel climbing height is accounted for about 60%of the total height,and reasonable shifting distances of the first mining area and the second mining area are 240 and 320 m.Sensitivity analysis shows that,the total passage height has important influence on the shifting step,so it is with the stripping height and passage construction cost to the passage structure. | Zhang Weishi Cai Qingxiang Chen Shuzhao | 2013 | International Journal of Mining Science and Technology2013,23,6: | 3 |
| 5 | A New View of the Initiation and Propagation in Anionic Polymerization显示文摘这个工作证实开始和 anionic 聚合的繁殖机制的新看法以前求婚了,基于在自我的帮助下的苯乙烯和甲基苯乙烯的 anionic 体积聚合的调查设计了 microflow 设备并且由 GPC 并且在 situ 7Li NMR 描绘了。趋于形成聚集 hexameric 的结构并且弄平基于前者形成巨大的聚集的结构,被发现那 n-BuLi。开始者的这些聚集能直接开始 anionic 聚合并且形成 supramolecule 聚集。supramolecule 聚集不可避免地堵住了单体的散开到离子对并且导致了一个静止变换的平台。然后,集成者完全被分裂进相等的聚集二进制代码的种类,并且聚合在结束前很快再继续。Tetrahydrofuran (THF ) 充当了电子捐赠者,它能把电子云推到李阳离子并且做相当松开并且便于单体插入在里面的活跃种类的聚集的戒指。因此,小 THF 能极大地支持 anionic 聚合。然而, THF 的进一步的增加可能堵住在离子对和减少之间的隧道繁殖率。活跃种类的聚集的结构仅仅在 anionic 聚合期间取决于在聚合前被形成的开始者聚集,这也被发现。 | Anna Zheng Bo Chen Dihang Hu Yong Guan Dafu Wei Shuzhao Li Dandan Ji | 2013 | Chinese Journal of Chemistry2013,31,3: | 2 |
| 6 | Calculation of slope-cover height under price fluctuation in open-pit mines显示文摘Leaving ditches between adjacent mining areas can effectively reduce re-stripping in the latter mining area and simultaneously lead to an increment in internal dumping costs in the former mining area. This paper establishes calculation models for these two marginal costs. The optimizing model for slope cover height can be determined by including marginal cost models in the objective function. The paper has two main contributions:(a) it fully considers redistribution of dumping space in the model;(b) it introduces price fluctuations and cash discounts in the model. We use the typical open-pit mine as an example to test and prove the model. We conclude that a completely covered slope is reasonable in Haerwusu open pit mine; in addition to an increasing price index, the slope cover height can be reduced; and that price changes are one of the most important influencing factors of slope cover height optimization in an open-pit mine. | Ma Jinyan Cai Qingxiang Liu Fuming Chen Shuzhao | 2014 | International Journal of Mining Science and Technology2014,24,3: | 1 |
| 7 | Research on control strategy of the stand-alone PV/battery system显示文摘 | WANG Shuzhao WU Hongbin | 2014 | Advanced Materials Research2014,860,: | 1 |
| 8 | The melt grafting preparation and rheological characterization of long chain branching polypropylene显示文摘 | Li Shuzhao Xiao Miaomiao Wei Dafu | 2009 | Polymer2009,50,25: | 1 |
| 9 | Electrochemical Removal of Chlorophenol Pollutants by Reactive Electrode Membranes: Scale-Up Strategy for Engineered Applications显示文摘Chlorophenols(CPs)are significant refractory pollutants that are highly toxic to humans and other organ-isms.Reactive electrode membranes(REMs)show considerable potential in the electrochemical removal of refractory pollutants by allowing flow-through operations with convection-enhanced mass transfer.However,relevant studies are commonly performed on the laboratory scale,and there is no straightfor-ward method that guarantees success in scaling up engineered REM reactors.In this study,we demon-strated that a tubular concentric electrode(TCE)configuration with a titanium suboxide ceramic anode and a stainless-steel cathode is suitable for large-scale CPs removal.Both theoretical and experi-mental results showed that the TCE configuration not only allows the electrode surface to be orthogonal to electric field lines everywhere,but also has an ohmic resistance that is inversely proportional to the length of the electrode.In addition,the TCE configuration can be operated in either the anode-to-cathode(AC)or the cathode-to-anode(CA)mode based on the flow direction,creating adjustable condi-tions for selective degradation of CPs.This was confirmed by 98%removal of 2,4-dichlorophenol(2,4-DCP)and 72.5%removal of chemical oxygen demand(COD)in the CA mode,in which the kinetic constant was one order of magnitude higher than that for the AC mode under flow-through single-pass operations.This can be explained by the lower activation energy and free energy in the CA mode,as revealed by the-oretical calculations and experimental measurements.The TCE configuration is also suitable for a numbering-up strategy to scale up the electrochemical reactor without increasing the ohmic resistance or decreasing the specific electrode area,achieving 99.4%removal of 2,4-DCP with an energy consump-tion of 1.5 kW·h·m^(-3) when three TCE modules were employed.This study presents a suitable electrode design configuration for the REM reactor,offering effective strategies to bridge the“Valley of Death”encountered when scaling up the electrochemical removal of CP pollutants. | Shuzhao Pei Yi Wang Shijie You Zhanguo Li Nanqi Ren | 2022 | Engineering2022,8,2: | 1 |
| 10 | The Melt Grafting Preparation and Rheological Characterization of Long Chain Branching Polypropylene 显示文摘 | Shuzhao Li Miaomiao Xiao Dafu Wei | 2009 | Polymer2009,50,25: | 1 |
| 11 | The moll grafting preparation and rheological characterization of long chain branching polypropylene 显示文摘 | LI Shuzhao XIAO Miaomiao WEI Dafu | 2009 | Polymer2009,50,25: | 1 |
| 12 | The melt grafting preparation and rheological characterization of long chain branching polypropylene显示文摘 | Shuzhao Li Miaomiao Xiao Dafu Wei Huining Xiao Fuzeng Hu Anna Zheng | 2009 | Polymer2009,,25: | 1 |
| 13 | A novel strategy 显示文摘 | Li Shuzhao Xiao Miaorniao Guan Yong | 2012 | Europ Polym J2012,48,: | 1 |
| 14 | High reversible capacity of SnO2/graphene nanocomposite as an anode material for lithiumion batteries显示文摘 | Lian Peichao Zhu Xuefeng Liang Shuzhao | | 0,,12: | 1 |
| 15 | A novel Fe 3 O 4 –SnO 2 –graphene ternary nanocomposite as an anode material for lithium-ion batteries显示文摘 | Peichao Lian Shuzhao Liang Xuefeng Zhu Weishen Yang Haihui Wang | 2011 | Electrochimica Acta2011,,: | 1 |
| 16 | Label-free impedimetric immunosensor for sensitive detection of fenvalerate in tea显示文摘 | Meirong Wang Huimin Kang Dan Xu Chengyin Wang Shuzhao Liu Xiaoya Hu | 2013 | Food Chemistry2013,,1: | 1 |
| 17 | 显示文摘 | Li Shuzhao Xiao Miaomiao Zheng Anna | 2011 | Biomacro-molecules2011,12,9: | 1 |
| 18 | 显示文摘 | Xiao Miaomiao Li Shuzhao Wilailak Chanklin | 2011 | Car-bohydrate Polymers2011,83,2: | 1 |