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| 1 | Definition, theory, methods, and applications of the safe and efficient simultaneous extraction of coal and gas显示文摘 | Yuanping Cheng Liang Wang Hongyong Liu Shengli Kong Jintuo Zhu Qingyi Tu | 2015 | International Journal of Coal Science & Technology2015，2，1： | 36 |
| 2 | Regional gas drainage techniques in Chinese coal mines显示文摘China's rapid economic development has increased the demand for coal.These results in Chinese coal mines being extended to deeper levels.The eastern Chinese,more economical developed,regions have a long history of coal mining and many coal mines have now started deep mining at a depth from 800 to 1500 m.This increase in mining depth,geostresses,pressures,and gas content of the coal seam complicates geologic construction conditions.Lower permeability and softer coal contribute to increasing numbers of coal and gas outburst,and gas explosion,disasters.A search on effective methods of preventing gas disasters has been provided funds from the Chinese government since 1998.The National Engineering Research Center of Coal Gas Control and the Huainan and Huaibei Mining Group have conducted theoretical and experimental research on a regional gas extraction technology.The results included two important findings.First,grouped coal seams allow adoption of a method where a first,key protective layer is mined to protect upper and lower coal seams by increasing permeability from 400 to 3000 times.Desorption of gas and gas extraction in the protected coal seam of up to 60%,or more,may be achieved in this way.Second,a single seam may be protected by using a dense network of extraction boreholes consisting of cross and along-bed holes.Combined with this is increased use of water that increases extraction of coal seam gas by up to 50%.Engineering practice showed that regional gas drainage technology eliminates regional coal and gas outburst and also enables mining under low gas conditions.These research results have been adopted into the national safety codes of production technology.This paper systematically introduces the principles of the technology,the engineering methods and techniques,and the parameters of regional gas drainage.Engineering applications are discussed. | Wang Haifeng Cheng Yuanping Wang Lei | 2012 | International Journal of Mining Science and Technology2012，22，6： | 13 |
| 3 | Effect of magma intrusion on the occurrence of coal gas in the Wolonghu coalfield显示文摘Chemical analysis, methane isothermal adsorption studies, and mercury porosimetry were performed on ten samples taken from the magma intrusion boundary in the Wolonghu coalfield. The physico-chemical properties of coals from the magma intrusion region are compared to those from the normal regions. The results show that the volatile content (Vad), the limiting adsorption constant (a), and the initial methane diffusion rate of samples from the magma intrusion region are generally smaller than those values from samples from the normal region. The number three coal sample from the magma intrusion region has a large vitrinite reflectance, well developed macropores, a small surface area, and weak methane adsorp- tion capacity. The number ten coal sample from the normal region has a small vitrinite reflectance, well developed micropores, a large surface area, and a strong methane adsorption capacity. The maceral of the coal samples from the magma intrusion region and the normal region are similar. The coal in the area near the magma intrusion boundary is rich in methane and is an area where coal and gas outbursts often occur. | Jiang Jingyu Cheng Yuanping Wang Lei An Fenghua Jiang Haina | 2011 | Mining Science and Technology2011，21，5： | 11 |
| 4 | Reservoir reconstruction technologies for coalbed methane recovery in deep and multiple seams显示文摘Multiple coal seams widely develop in the deep Chinese coal-bearing strata. Ground in situ stress and coal seam gas pressure increase continuously with the increase of the mining depth, and coal and gas outburst disasters become increasingly severe. When the coal is very deep, the gas content and pressure will elevate and thus coal seams tends to outburst-prone seams. The safety and economics of exploited firstmined coal seams are tremendously restricted. Meanwhile, the multiple seams occurrence conditions resulted in different methane pressure systems in the coal-bearing strata, which made the reservoir reconstruction of coal difficult. Given the characteristics of low saturation, low permeability, strong anisotropy and soft coal of Chinese coal seams, a single hydraulic fracturing surface well for reservoir reconstruction to pre-drain the coalbed methane(CBM) of multiple seams concurrently under the different gas pressure systems has not yet gained any breakthroughs. Based on analyses of the main features of deep CBM reservoirs in China, current gas control methods and the existing challenges in deep and multiple seams, we proposed a new technology for deep CBM reservoir reconstruction to realize simultaneous high-efficiency coal mining and gas extraction. In particular, we determined the first-mined seam according to the principles of effectiveness and economics, and used hydraulic fracturing surface well to reconstruct the first-mined seam which enlarges the selection range of the first-mined seam. During the process of mining first-mined seam, adjacent coal seams could be reconstructed under the mining effect which promoted high-efficiency pressure relief gas extraction by using spatial and comprehensive gas drainage methods(combination of underground and ground CBM extraction methods). A typical integrated reservoir reconstruction technology, ‘‘One well for triple use', was detailed introduced and successfully applied in the Luling coal mine. The application showed that the proposed technology could effectively promote coal mining safety and simultaneously high-efficiency gas extraction. | Wang Liang Liu Shimin Cheng Yuanping Yin Guangzhi Zhang Dongming Guo Pinkun | 2017 | International Journal of Mining Science and Technology2017，27，2： | 10 |
| 5 | Fissure evolution and evaluation of pressure-relief gas drainage in the exploitation of super-remote protected seams显示文摘Based on nonlinearity contact theory and the geological structure of the Xieqiao Coal Mine in the newly developed Huainan coal field,rock movements,mining fissures and deformation of overlying strata were simulated by using the interface unit of FLAC3D to evaluate the pressure-relief gas drainage in the exploitation of super-remote protected seams.The simulation indicates that the height of the water flowing fractured zone is 54 m in the overlying strata above the protective layer.The maximum relative swelling deformation of the C13 coal seam is 0.232%,while the mining height is 3.0 m and the distance from the B8 roof to the C13 floor is 129 m,which provides good agreement with a similar experiment and in situ results.The feasibility of exploitation of a super-remote protective coal seam and the performance of the pressure-relief gas drainage in a super-remote protected layer are evaluated by comparisons with practice projects.It demonstrates that the relieved gas in the super-remote protected layers could be better drained and it is feasible to exploit the B8 coal seam before the C13 super-remote protected coal seam.The method is applicable for the study of rock movements,mining fissures and deformation of the overburden,using the interface unit to analyze the contact problems in coal mines. | LIU, Hongyong CHENG, Yuanping ZHOU, Hongxing WANG, Feng CHEN, Haidong | 2010 | Mining Science and Technology2010，20，2： | 10 |
| 6 | Controlling the effect of a distant extremely thick igneous rock in overlying strata on coal mine disasters显示文摘Based on theoretical analysis, similarity simulation tests, numerical simulation analysis and field observations, we analyzed rock collapse and rules of fraction evolution of overlying rocks and studied the rules in controlling the effect of an extremely thick igneous rock, found above a main mining coal seam in an area prone to coal mine disasters in the Haizi Coal Mine. The results show that this igneous rock, called a 'main key stratum', will not subside nor break for a long time, causing lower fractures and bed separations not to close. The presence of igneous rock plays an important role in rock bursts, mine floods, gas outburst and surface subsidence in coal mines. By analyzing the rules in controlling the effect of this igneous rock, we provide useful references for safety and high efficiency mining in coal mines under special geological conditions. | WANG Liang | 2010 | Mining Science and Technology2010，20，4： | 8 |
| 7 | Similarity model tests of movement and deformation of coal-rock mass below stopes显示文摘For a study of the movement and deformation of coal-rock mass and low protected seams below a stope,as well as for fracture developments and rules of evolution of permeability,we designed a plane strain model test stand to carry out model tests of similar materials in order to improve the effect of gas drainage from low protected seams and to measure the movement and deformation of coal-rock mass using a method of non-contact close-range photogrammetry.Our results show that 1) using paraffin melting to take the place of coal seam mining can satisfy the mining conditions of a protective seam;2) coal-rock mass under goafs has an upward movement after the protective seam has been mined,causing floor heaving;3) low protected seams become swollen and deformed,providing a good pressure-relief effect and causing the coal-rock mass under both sides of coal pillars to become deformed by compression and 4) the evolution of permeability of low protected seams follows the way of initial values→a slight decrease→a great increase→stability→final decrease.Simultaneously,the coefficient of air permeability increased at a decreasing rate with an increase in interlayer spacing. | WANG, Haifeng CHENG, Yuanping YUAN, Liang WANG, Liang | 2010 | Mining Science and Technology2010，20，2： | 6 |
| 8 | Discovery of Ordos Cretaceous dune rock and its significance显示文摘It has been found that there existed quite a large quantity of dune rocks in the red sandstone of the Zhidan Group of Ordos Cretaceous strata. Their sedimentary structure, grain size and micro-shape of sand grains show an obvious aeolian features. Both the temporal and spatial distribution and sedimentary characteristics of these dune rocks suggest that probably | Xiaoze Li Guangrong Dong Heling Jin Zhizhu Su Yuanping Wang | 1999 | Chinese Science Bulletin1999，44，22： | 5 |
| 9 | Prediction method for risks of coal and gas outbursts based on spatial chaos theory using gas desorption index of drill cuttings显示文摘Based on the evolution of geological dynamics and spatial chaos theory, we proposed the advanced prediction an advanced prediction method of a gas desorption index of drill cuttings to predict coal and gas outbursts. We investigated and verified the prediction method by a spatial series data of a gas desorption index of drill cuttings obtained from the II3112 coal roadway at the Shitai Mine. Our experimental results show that the spatial distribution of the gas desorption index of drill cuttings has some chaotic characteristics, which implies that the risk of coal and gas outbursts can be predicted by spatial chaos theory. We also found that a proper amount of sample data needs to be chosen in order to ensure the accuracy and practical maneuverability of prediction. The relative prediction error is small when the prediction pace is chosen carefully. In our experiments, it turned out that the optimum number of sample points is 80 and the optimum prediction pace 30. The corresponding advanced prediction pace basically meets the requirements of engineering applications. | Li Dingqi Cheng Yuanping Wang Lei Wang Haifeng Wang Liang Zhou Hongxing | 2011 | Mining Science and Technology2011，21，3： | 5 |
| 10 | Fabricating antibacterial CoCrCuFeNi high-entropy alloy via selective laser melting and in-situ alloying显示文摘A quasi-equiatomic CoCrFeCuNi high-entropy alloy(HEA) with a broad-spectrum antibacterial ability and good mechanical properties has been fabricated by selective laser melting(SLM) and in-situ alloying of a blend of pre-alloyed CoCrFeNi powder and Cu elemental powder.The as-built HEA alloy has a homogeneous distribution of Cu and presents a single FCC phase.Compared with the same HEA fabricated using the traditional ingot metallurgy(IM) process,the HEA alloy fabricated by SLM releases more Cu ions to prevent growth and biofilm formation by gram-negative Escherichia coli and gram-positive Staphylococcus aureus,which enhances the applicability of the HEA alloy in potential applications that requires antibacterial ability.The results of this study confirm the feasibility of combining the antibacterial CoCrFeCuNi HEA alloy and SLM technology in fabricating complex shaped parts or structures with a strong antibacterial ability to be used in medical application or other environments desired for antibacterial ability. | Jingbo Gao Yuting Jin Yongqiang Fan Dake Xu Lei Meng Cong Wang Yuanping Yu Deliang Zhang Fuhui Wang | 2022 | Journal of Materials Science & Technology2022，，7： | 4 |
| 11 | Component fractionation of temporal evolution in adsorption-desorption for binary gas mixtures on coals from Haishiwan Coal Mine显示文摘Adsorption-desorption experiments on CO2-CH4 gas mixtures with varying compositions have been conducted to study the fractionation characteristics of CO2-CH4 on Haishiwan coal samples. These were carried out at constant temperature but different equilibrium pressure conditions. Based on these experimental results, the temporal evolution of component fractionation in the field was investigated. The results show that the CO2 concentration in the adsorbed phase is always greater than that in the original gas mixture during the desorption process, while CH4 shows the opposite characteristics. This has confirmed that CO2 , with a greater adsorption ability has a predominant position in the competition with CH4 under different pressures. Where gas drainage is employed, the ratio of CO2 to CH4 varies with time and space in floor roadways used for gas drainage, and in the ventilation air in Nos.1 and 2 coal seams, which is consistent with laboratory results. | Wang Liguo Cheng Yuanping Li Wei Lu Shouqing Xu Chao | 2013 | International Journal of Mining Science and Technology2013，23，2： | 4 |
| 12 | Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) emissions from electric arc furnaces for steelmaking显示文摘The proportion of steel produced using electric arc furnaces(EAFs)is increasing.In this study,polychlorinated dibenzo-p-dioxins and dibenzofurans(PCDD/Fs)concentrations and patterns in stack gas samples from three typical EAFs in steelmaking plants were determined to allow the contributions of EAFs in steelmaking plants to PCDD/Fs emissions in China to be assessed.Samples collection was accomplished by adopting the automatic isokinetic sampling technique,then the PCDD/Fs congeners concentrations were analyzed qualitatively and quantitatively by isotope dilution high-resolution gas chromatography high-resolution mass spectrometry(HRGC-HRMS).The mean PCDD/Fs mass concentrations in stack gases emitted during the scrap preheating phase of plants E1,E2,and E3 were 0.48,385.55,and 0.34 ng Nm^-3,respectively,and the total toxic equivalent(WHO2005-TEQ)concentrations were 0.05,33.16,and 0.03 ng Nm^-3,respectively.The PCDD/Fs mass concentration in stack gases emitted during the melting phase at plant E3 was 0.12 ng Nm^-3(0.02 ng WHO2005-TEQ Nm^-3).The operational temperature of the bag filter of the preheating in the E2 EAF was as high as 230℃,which is conducive to the generation of PCDD/Fs,whether the temperature in the bag filter of E1(150℃)and E3(120℃)are not.Moreover,the bag filter temperature is suggested to be best controlled to below 150℃.The emission factors(EF)for PCDD/Fs released into the air during the scrap preheating phase for plants E1,E2,and E3 were 0.13,52,and 0.10 mg WHO2005-TEQ t1,respectively,and the EF for the smelting phase from plant E3 was 0.14 mg WHO2005-TEQ t1.The emission factor in E2 is 5 times higher than the highest current UNEP toolkit factor for EAFs(10 mg TEQ/tonne steel).Therefore,an update for the UNEP toolkit emission factor for a few case plants is suggested.Several congeners,including 2,3,7,8-TeCDF,1,2,3,4,6,7,8-HpCDF,and 1,2,3,4,6,7,8-HpCDD,were dominant during the preheating phase,while 2,3,7,8-TeCDF,1,2,3,7,8-PeCDF,and 2,3,4,7,8-PeCDF were dominant during the smelting phase.The monitoring data from the case plants helps to better understand the PCDD/Fs emissions of EAFs using preheating process stages.However,a more complete emission inventory requires more case investigations on the PCDD/Fs emissions from representative EAFs steelmaking plants. | Qiuting Yang Lili Yang Jia Shen Yuanping Yang Minxiang Wang Xiaoyun Liu Xuejing Shen Changliang Li Jia Xu Fengfeng Li Da Li Guorui Liu Minghui Zheng | 2020 | Emerging Contaminants2020，6，1： | 3 |
| 13 | Inter-Operator Interference Coordination for CoPrimary Spectrum Sharing in UDN显示文摘Co-primary spectrum sharing for multiple operators has been utilized to fully explore the spectrum resources and thus improve the spectrum efficiency. The inter-operator interference(IOI) problem should be seriously considered in order to achieve the mentioned target, especially under the scenario of the ultradense network(UDN) in the fifth generation(5G) wireless systems. To solve this problem, we propose an asymmetrical power levels based soft IOI coordination mechanism. The shared spectrum pool is consisted of three separated parts, where each part can be dynamically adjusted according to the minimal spectrum demand from each operator. Furthermore, different power masks are configured to different parts for each operator. The simulation results show that the proposed mechanism can improve the network spectrum efficiency significantly. | YU Qiaoling WANG Jiang YANG Xiumei ZHU Yuanping TENG Yong Horneman Kari | 2015 | China Communications2015，12，S1： | 3 |
| 14 | Stability Analysis of Information Spreading on SNS Based on Refined SEIR Model显示文摘Investigating the stability of information spreading over SNS helps to understand the principles inherent in the spreading behavior.This paper explores the mechanisms of information spreading including stifling mechanism,latent mechanism and forgetting mechanism,establishes a refined SEIR model,and builds the corresponding mean-field equations.The methods of the differential dynamics and the next generation matrix are used to calculate the equilibriums and the basic reproductive number,and the asymptotical stability of the network equilibriums are proved theoretically.Simulation experiments are carried out to analyze the effect of the spreading mechanisms on the information spreading process and the results support our conclusions. | WANG Chao HU Yuanping LIU Chengyuan LIU Zhihong MA Jianfeng | 2014 | China Communications2014，11，11： | 2 |
| 15 | Development of Specific SSR Molecular Marker of 'Huangzhou Radish' Based on Purity Identification显示文摘As an excellent local crop variety of Huanggang,'Huangzhou radish' has been widely promoted and its market influence is increasing day by day.Recently,the purity of 'Huangzhou radish' has declined deeply,so it is urgent to improve and strengthen the purity and viability of 'Huangzhou radish' including bad phenomena such as degeneration of varieties after self-pollination.At present,there was no SSR molecular marker can be used for genetic diversity identification of 'Huangzhou radish'.SSR molecular marker can provide a favorable tool to study 'Huangzhou radish'.In this study,'Xiakang','Hongbao'and 'Huangzhou radish' were used as experimental materials,100 SSR primers were screened,and 25 pairs of SSR primers were selected.Finally,two pairs of primers were selected for identification of the purity of 'Huangzhou radish' by non-denatured polyacrylamide gel electrophoresis (PAGE).The results showed that R-102 and R-112 primer pairs could amplify the special bands for 'Huangzhou radish' from above three kinds of radishes.These two pairs of primers could be developed as SSR markers to identify the specificity and purity of 'Huangzhou radish'.Furthermore,this study provides convenient conditions for promoting the economic and social value of 'Huangzhou radish'. | Pingan WANG Jinlan YAO Qiuyu ZENGCHEN Linling WANG Jingcai LI Yuanping FANG Shisheng LI | 2019 | Agricultural Biotechnology2019，8，5： | 2 |
| 16 | Development of an 8090/3003 bimetal slab using a modified direct-chill casting process显示文摘 | Tongmin Wang Chunhui Liang Zongning Chen Yuanping Zheng Huijun Kang Wei Wang | 2014 | Journal of Materials Processing Tech2014，，： | 1 |
| 17 | Design of antibacterial peptide-like conjugated molecule with broad spectrum antimicrobial ability显示文摘Increasing multidrug-resistant(MDR) superbugs emerge worldwide causing a public health crisis. Consequently, it is urgent to find new antibiotics with efficient broad-spectrum antimicrobial activity. By virtue of versatility in molecular design, a new peptide-like cell membrane-broken molecule, oligo-(7,7′-bifluoren-benzo[c][1,2,5]thiadiazole)(OFBT) possessing a conjugated backbone and eight pendant guanidyl moieties was designed and synthesized. OFBT exhibits favorable broad-spectrum of antimicrobial activity to pathogens including Gram-negative and Gram-positive bacteria, and fungi with the minimum inhibitory concentration(MIC)below 3.0 μM. Moreover, OFBT exhibits high selectivity for pathogens over human cells to make it a promising broad spectrum antimicrobial agent. | Hui Chen Meng Li Zhang Liu Rong Hu Shengliang Li Yuan Guo Fengting Lv Libing Liu Yilin Wang Yuanping Yi Shu Wang | 2018 | Science China Chemistry2018，61，1： | 1 |
| 18 | Experimental simulation of capillary effect on rough flat surfaces显示文摘The movement of the liquid column inside the slit was utilized to experimentally simulate the characteristics of the capillary force per unit length for different rough flat surfaces.The movement of the liquid column was achieved by continuously changing the slit interval.The maximum climb height and contact angle of the liquid column were observed during this process to study the relationship between capillary force and contact surface roughness.Based on the assumption that the microstructures on the rough surfaces are of the same form and continuously and uniformly distributed,it is shown that the capillary force per unit length under homogeneous wetting is independent of the roughness.For heterogeneous wetting,the capillary force per unit length is positively correlated with the roughness.The results also indicate that the appearance of'contact line pinning'is caused by insufficient capillary force along the direction of liquid column movement. | Ziwen Zuo Junfeng Wang Yuanping Huo Dongbao Wang Hongbing Ji | 2022 | Particuology2022，20，1： | 1 |
| 19 | Purification and Identification of Antioxidant Peptides from the Scallop Skirts of Mimachlamys Nobilis显示文摘The processes of scallop meats can produce a large amount of by-products like scallop skirts,which are rich in nutrients. This work aimed to obtain the information about antioxidant peptides derived from scallop skirts of Mimachlamys nobilis. The hydro-lysates obtained by trypsin exhibited the highest antioxidant activity( 75.6%,79.5% and 76.7% using DPPH,hydroxyl and superoxide anion radical scavenging activity assays,respectively). The antioxidant peptides( MNAP) were separated and purified using UF membranes,GFC processes and RP-HPLC,and the antioxidant activity of MNAP was identified to be 85.7% using DPPH radical scavenging activity assay. The peptides( MNAP) were composed of two peptides with their molecular weights2 855.6 Da and 3 007.2 Da using MALDI-TOF-MS,respectively. The results suggested that the scallop skirts of Mimachlamys nobilis could be explored as a source of antioxidant peptides. | Quanfu Wang Yifan Wang Yanhua Hou Yifeng Xu Meihong Yan Haoyuan Li Yuanping Liu Yujin Li | 2017 | Journal of Harbin Institute of Technology(New Series)2017，24，5： | 1 |
| 20 | Downward shift of gas hydrate stability zone due to seafloor erosion in the eastern Dongsha Island,South China Sea显示文摘New acquired and reprocessed three-dimensional(3D)seismic data were used to delineate the distribution and characterization of bottom simulating reflections(BSRs)in the Chaoshan Sag,in the eastern part of Dongsha Island,South China Sea.Three submarine canyons with different scales were interpreted from the 3D seismic data,displaying three stages of canyon development and are related with the variation of BSR.Abundant faults were identified from the coherence and ant-tracing attributions extracted from 3D seismic data,which provide the evidence for fluid migration from deeper sediments to the gas hydrate stability zone(GHSZ).The uplift of Dongsha Island created a large number of faults and leads to the increased seafloor erosion.The erosion caused the cooling of the seafloor sediments and deepening of the base of the gas hydrate stability zone,which is attributed to the presence of paleo-BSR and BSR downward shift in the study area.Hence,methane gas may be released during the BSR resetting and gas hydrate dissociation related with seafloor erosion. | JIN Jiapeng WANG Xiujuan HE Min LI Jie YAN Chengzhi LI Yuanping ZHOU Jilin QIAN Jin | 2020 | Journal of Oceanology and Limnology2020，38，4： | 1 |
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