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| 1 | Characteristics of dust distributions and dust control measures around road-header drivers in mining excavation roadways显示文摘In the present study,a numerical simulation method was adopted in order to examine the characteristics of dust dispersion during continuous dust release periods(CRP)and stop dust release periods(SRP).The purpose was to analyze the dust distributions and migration actions around road-header drivers in excavation roadways,and then determine effective dust control measures for underground coal mines.This study’s simulation results showed that the dust concentrations continuously increased,and then gradually reached a stability level during the CRP.During that time,the locations of the drivers were always at the intersection of the original migration dust and the backflow dust,and the drivers were invaded by these two strands dust.However,during the SRP,the dust concentrations gradually decreased under the actions of the roadway ventilation.Besides,obvious backflow phenomena were observed around the road-header during the SRP.The locations of the drivers were still within the backflow paths of the high dust concentrations.At the present time,dust separation and extraction systems have been implemented in coal mines,including vacuuming and air knife devices,which are designed to control the dust around the road-header drivers.The field applications of these systems were conducted in the 26 mechanized excavation faces of the Zhangcun Coal Mine.The results revealed that the use of these dust removal systems could effectively reduce the dust concentrations around the road-header drivers.In the present study,the dust removal rates during the CRP and SRP were determined to reach up to 88.7% and 94.6%,respectively.Therefore,the results of this research study provided effective theoretical guidance of the characteristics of dust distributions in coal mines,and introduced effective control methods for the hazardous dust concentrations around road-header drivers during the excavation process. | Shengyong Hu Yang Gao Guorui Feng Yisheng Huang He Shaoa Qi Liao Fei Hu | 2021 | Particuology2021,19,5: | 4 |
| 2 | Diagnosis of ABCB11 gene mutations in children with intrahepatic cholestasisusing high resolution melting analysis and direct sequencing显示文摘 | Guorui Hu Ping He Zhifeng Liu Qian Chen Bixia Zheng Qihua Zhang | 2014 | Molecular Medicine Reports2014,,3: | 1 |
| 3 | Study on Effects of Organic Nutrient Solution on Amino Acid Contents in Litchi (Litchi chinensis Sonn.) Fruit显示文摘[Objectives] This study was conducted to investigate the effect of organic nutrient solution on litchi quality. [Methods] Different concentrations of organic nutrient solutions were sprayed on litchi leaves to study their effects on amino acid contents in the fruit of litchi cultivar 'Qinzhouhongli'. [Results] The results showed that the organic nutrient solution could significantly promote the growth of litchi fruit at various development stages and improve fruit quality by spraying the organic nutrient solution for 3 times with a dilution concentration of 500-1 500 times during fruit development(at an interval of 15 d) of litchi. It could increase the total essential amino acid, total semi-essential amino acid, lysine, phenylalanine, threonine, methionine, valine, leucine, histidine, arginine, aspartic acid, glycine, serine, proline, alanine and tyrosine contents. Spraying the organic nutrient solution with a dilution concentration of 1 000 times achieved the best effect of promoting the growth and improving quality of litchi fruit. [Conclusions] This study provides a theoretical basis for high-quality production and nutritional quality evaluation of litchi and the development of functional processed litchi products. | Yingyi DENG Chanchan QIN Hui WANG Xinwei CHEN Jiechun PAN Jiongzhi XU Jianan HE Guorui HU Xiao QU | 2019 | Agricultural Biotechnology2019,8,2: | 1 |
| 4 | Atmospheric emission of polychlorinated naphthalenes from iron ore sintering processes显示文摘 | Guorui Liu Minghui Zheng Bing Du Zhiqiang Nie Bing Zhang Wenbin Liu Cheng Li Jicheng Hu | 2012 | Chemosphere2012,,4: | 1 |
| 5 | Experimental study of the dust-removal performance of a wet scrubber显示文摘A variety of dust control methods are often applied in coal mines,among which the application of wet scrubbers has proven to be an efficient technology for the removal of dust in airstreams,rather than diluting or confining the dust.In this paper,a wet scrubber design was developed.Based on a self-designed experimental test platform,the total dust concentration,respirable dust concentration,air volume,and average pressure drops of wet scrubbers with 12,16,20,and 24 blades were measured under different water intake conditions.The results show that the different water intake levels have only minimal effects on the air volume of the wet scrubbers.However,increased water intake had improved the dust removal efficiency of the wet scrubbers with the same number of blades.The wet scrubber with 16 blades was found to have the best dust removal efficiency at a water intake level of 1.35 m^(3)/h.Its total dust and respirable dust removal efficiency reached 96.81%and 95.59%,respectively.The air volume was 200.4 m^(3)/min,and the average pressure drop was determined to be 169.4 Pa.In addition,when the wet scrubber with 16 blades was applied in a coal preparation plant in China's Shanxi Province,it was observed that the total dust concentration had fallen below 8.1 mg/m^(3),and the respirable dust concentration had fallen below 5.9 mg/m^(3).Therefore,the results obtained in this research investigation provide important references for the use of wet scrubbers to improve coal production environmental conditions. | Shengyong Hu Yang Gao Guorui Feng Fei Hu Changhe Liu Jihua Li | 2021 | International Journal of Coal Science & Technology2021,8,2: | 0 |
| 6 | Influence of electrolyte structural evolution on battery applications:Cationic aggregation from dilute to high concentration显示文摘In the context of the rapid expansion of the electric vehicle market,the request for high-energy-density lithium-ion batteries(LIBs)has steadily increased,hence the demand for highly stable electrolytes.Over the past years,efforts have been devoted to the improvement of electrolyte materials.As a benchmarking breakthrough,the achievement of high concentration electrolyte(HCE)can be attributed to the altered cationic aggregation(i.e.,cation-solvent and cation-anion coordination environment),which offers technical superiority over the widely applied conventional dilute electrolytes.More recently,based on the understanding of the dilute electrolyte and HCE,the concept of localized HCE(LHCE)has been proposed and extensively investigated.All these findings reveal a roadmap of electrolyte optimization for high-performance LIBs via coordination structure regulation.Through elucidating the correlation of structure evolution therein and its critical effects on battery performance,this review aims to establish the design principle of electrolytes based on their structures other than component studies and thereby accelerate the development of high-performance electrolytes. | Jiangtao Hu Yuchen Ji Guorui Zheng Weiyuan Huang Yuan Lin Luyi Yang Feng Pan | 2022 | Aggregate2022,3,1: | 0 |