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| 1 | Theoretical and numerical analysis of coal dust separated by centrifugal force for working and heading faces显示文摘In order to meet engineering needs of Chinese underground coal mines,a new dust-collecting fan,a device of dust separated by centrifugal force in driven cyclone passageway(DCCP)was designed.In centrifugal dust removal section(CDRS)of DCCP,a general equation is derived from the principle of force equilibrium.According to CDRS structure parameters and fan running parameters,the general equation is simplified,and the simplest equation is calculated numerically by MATLAB.The calculation results illustrate that increasing quantity of air current is against dust removal,but it is beneficial to dust removal by increasing the radius of driven spiral blade and increasing the particle diameter of coal dust.The conclusions show that the dust-collecting structure parameters coupled with the fan running parameters is a novel optimization approach to dust-collection fan for working and heading faces,which is especially suitable for Chinese underground mines. | Shiqiang Chen Haiqiao Wang Yiqun Li Haijiao Cui Jie Zhao Xiaowei Zhang | 2014 | International Journal of Coal Science & Technology2014,1,3: | 7 |
| 2 | Uniform ordered mesoporous ZnCo2O4 nanospheres for super-sensitive enzyme-free H2O2 biosensing and glucose biofuel cell applications显示文摘一致、订的 mesoporous ZnCo 2 O 4(meso-ZnCo 2 O 4) nanospheres 成功地用一个牺牲的模板方法被综合。meso-ZnCo 2 O 4 nanospheres 为 H 2 O 2 biosensing 并且在葡萄糖 biofuel,房间(GBFC ) 作为酶模仿。meso-ZnCo 2 O 4 nanospheres 不仅在 H 2 O 2 传感器,完成高敏感(658.92 A ??? ? ??? 洠捩潲猭灵牥慣慰楣潴獲?? | Shiqiang Cui Li Li Yaping Ding Jiangjiang Zhang QingshengWu Zongqian Hu | 2017 | Nano Research2017,10,7: | 3 |
| 3 | Spatial and temporal variabilities of rainstorms over China under climate change显示文摘Rainstorms are one of the extreme rainfall events that cause serious disasters,such as urban flooding and mountain torrents.Traditional studies have used rain gauge observations to analyze rainstorm events,but relevant information is usually missing in gauge-sparse areas.Satellite-derived precipitation datasets serve as excellent supplements or substitutes for the gauge observations.By developing a grid-based rainstorm-identification tool,we used the Tropical Rainfall Measurement Mission(TRMM)Multi-satellite Precipitation Analysis(TMPA)time series product to reveal the spatial and temporal variabilities of rainstorms over China during 1998–2017.Significant patterns of both increasing and decreasing rainstorm occurrences were detected,with no spatially uniform trend being observed across the whole country.There was an increase in the area being affected by rainstorms during the 20-year period,with rainstorm centers shifting along the southwest–northeast direction.Rainstorm occurrence was found to be correlated with local total precipitation.By comparing rainstorm occurrence with climate variables such as the El Ni?o-Southern Oscillation and Pacific Decadal Oscillation,we also found that climate change was likely to be the primary reason for rainstorm occurrence in China.This study complements previous studies that used gauge observations by providing a better understanding of the spatiotemporal dynamics of China’s rainstorms. | HUANG Chang ZHANG Shiqiang DONG Linyao WANG Zucheng LI Linyi CUI Luming | 2021 | Journal of Geographical Sciences2021,31,4: | 3 |
| 4 | Adaptive mixture observation models for multiple object tracking显示文摘Multiple object tracking (MOT) poses many difficulties to conventional well-studied single object track-ing (SOT) algorithms,such as severe expansion of configuration space,high complexity of motion con-ditions,and visual ambiguities among nearby targets,among which the visual ambiguity problem is the central challenge. In this paper,we address this problem by embedding adaptive mixture observation models (AMOM) into a mixture tracker which is implemented in Particle Filter framework. In AMOM,the extracted multiple features for appearance description are combined according to their discriminative power between ambiguity prone objects,where the discriminability of features are evaluated by online entropy-based feature selection techniques. The induction of AMOM can help to surmount the incapa-bility of conventional mixture tracker in handling object occlusions,and meanwhile retain its merits of flexibility and high efficiency. The final experiments show significant improvement in MOT scenarios compared with other methods. | CUI Peng SUN LiFeng YANG ShiQiang | 2009 | Science in China(Series F)2009,52,2: | 3 |
| 5 | Effects of structural and operating parameters of ECP fan on dust particles removed in the transition flow regime显示文摘An enclosed cyclone passageway(ECP)dust-collecting fan is discussed.The ECP fan separates dust by centrifugal force originating from a driven spiral airflow,and its design takes the constraints of Chinese underground coal mines into consideration.Using the force equilibrium law,a general equation for dust removal in the centrifugal dust removal section(CDRS)of the ECP fan is deduced.This general equation is simplified using the CDRS structure and the fan operating parameters and is analysed numerically.The attractive results show that increases in the airflow rate of the fan,the structural ratio of the ECPs and the radius of the extended axis can improve the dust removal performance of the CDRS.Furthermore,the effects of the structural ratio and the radius on dust removal dominate over that of the flow rate,and the effect of the structural ratio is more significant than that of the radius. | Shiqiang Chen Youming Chen Haiqiao Wang Ronghua Liu Haijiao Cui | 2014 | International Journal of Coal Science & Technology2014,1,4: | 2 |
| 6 | Boron-doping induced lithophilic transition of graphene for dendrite-free lithium growth显示文摘Li metal,possessing advantages of high theoretical specific capacity and low electrochemical potential,is regarded as the most promising anode material for next-generation batteries.However,despite decades of intensive research,its practical application is still hindered by safety hazard and low Coulombic efficiency,which is primarily caused by dendritic Li deposition.To address this issue,restraining dendrite growth at the nucleation stage is deemed as the most effective method.By utilizing the difference of electronegativity between boron atoms and carbon atoms,carbon atoms around boron atoms in boron-doped graphene(BG)turn into lithiophilic sites,which can enhance the adsorption capacity to Li^(+)at the nucleation stage.Consequently,an ultralow overpotential of 10 mV at a current density of 0.5 mA/cm^(2) and a high average Coulombic efficiency of 98.54%over more than 140 cycles with an areal capacity of 2 mAh/cm^(2) at a current density of 1 m A/cm^(2) were achieved.BG-Li|LiFePO_(4) full cells delivered a long lifespan of480 cycles at 0.5 C and excellent rate capability.This work provides a novel method for rational design of dendrite-free Li metal batteries by regulating nucleation process. | Wei Liu Pengbo Zhai Shengjian Qin Jing Xiao Yi Wei Weiwei Yang Shiqiang Cui Qian Chen Chunqiao Jin Shubin Yang Yongji Gong | 2021 | Journal of Energy Chemistry2021,30,5: | 2 |
| 7 | Increasingπ-electron availability in benzene ring incorporated graphitic carbon nitride for increased photocatalytic hydrogen generation显示文摘Increasing the availability ofπ-electron in graphitic carbon nitride(g-C_(3)N_(4))can reduce the band gap and thus enhance the photocatalytic hydrogen(H_(2))generation activity upon exposure to visible light,However,such strategy has not yet been largely applied to increase the H_(2)generation of g-C_(3)N_(4).Herein,we succes s fully increased the amount ofπ-electron in g-C_(3)N_(4)by incorporatingπ-electron-rich benzene rings through copolymerization of melamine and trimesic acid in air.The incorporation of benzene rings not only extends the light absorption of g-C_(3)N_(4)to 650 nm,but also improves the electrical conductivity due to delocalization ofπelectrons in benzene rings.As a result,a 3.4 times enhancement of photocatalytic H_(2)generation was achieved from the g-C_(3)N_(4)with benzene ring incorporation in comparing with that of pristine g-C_(3)N_(4).More interestingly,H_(2)generation still occurs under irradiation of the light ofλ≥490 nm,above the absorption edge of pristine g-C_(3)N_(4)(~460 nm),illustrating the positive effectiveness of incorporated benzene rings on enhancing the H_(2)generation capacity of g-C_(3)N_(4).The present work manifests the advantages of increasingπ-conjugated electrons on designing highly active g-C_(3)N_(4)photocatalysts. | Xiangang Lin Xiaojuan Hou Lixia Cui Shiqiang Zhao Hong Bi Haiwei Du Yupeng Yuan | 2021 | Journal of Materials Science & Technology2021,,6: | 2 |
| 8 | Biomass-derived hard carbon microtubes with tunable apertures for high-performance sodium-ion batteries显示文摘Sodium-ion batteries(SIBs)are considered the most up-and-coming complements for large-scale energy storage devices due to the abundance and cheap sodium.However,due to the bigger radius,it is still a great challenge to develop anode materials with suitable space for the intercalation of sodium ions.Herein,we present hard carbon microtubes(HCTs)with tunable apertures derived from low-cost natural kapok fibers via a carbonization process for SIBs.The resulted HCTs feature with smaller surface area and shorter Na+diffusion path benefitting from their unique micro-nano structure.Most importantly,the wall thickness of HCTs could be regulated and controlled by the carbonization temperature.At a high temperature of 1,600℃,the carbonized HCTs possess the smallest wall thickness,which reduces the diffusion barrier of Na+and enhances the reversibility Na+storage.As a result,the 1600HCTs deliver a high initial Coulombic efficiency of 90%,good cycling stability(89.4%of capacity retention over 100 cycles at 100 mA·g^(−1)),and excellent rate capacity.This work not only charts a new path for preparing hard carbon materials with adequate ion channels and novel tubular micro-nano structures but also unravels the mechanism of hard carbon materials for sodium storage. | Pin Song Shiqiang Wei Jun Di Jun Du Wenjie Xu Daobin Liu Changda Wang Sicong Qiao Yuyang Cao Qilong Cui Pengjun Zhang Liaobo Ma Jiewu Cui Yan Wang Yujie Xiong | 2023 | Nano Research2023,16,4: | 1 |
| 9 | 盐摄入通过PPARδ/脂联素介导的SGLT2通路调控糖稳态显示文摘高盐摄入是糖尿病发生高血压的主要危险因素.促进肾脏盐排泄可减少糖尿病的心血管损害,但摄盐与糖稳态的相互作用尚不清楚。 | Yu Zhao Peng Gao Fang Sun Qiang Li Jing Chen Hao Yu Li Li Xing Wei Hongbo He Zongshi Lu Xiao Wei Bin Wang Yuanting Cui Shiqiang Xiong Qianhui Shang Aimin Xu Yu Huang Daoyan Liu 祝之明 | 2017 | 科学新闻2017,19,4: | 0 |
| 10 | 230 MeV Superconducting Cyclotron Introduces Design and Welding of Water Cooling Tube of Electrostatic Deflection Plate显示文摘The 230 MeV superconducting cyclotron is composed of a cutting board and a negative high voltage electrode.A very high electric field is produced between the two,allowing the particle to rapidly deflect from the edge field.Considering the loss of beam at the entrance of the cutting board is obvious,the design process adopts the tantalum metal material with high melting point, | LI Shiqiang GE Tao CUI Tao LI Ming LI Yaoqian JIANG Hao | 2017 | Annual Report of China Institute of Atomic Energy2017,,1: | 0 |
| 11 | Single-cell analysis reveals an Angpt4-initiated EPDC-EC-CM cellular coordination cascade during heart regeneration显示文摘Mammals exhibit limited heart regeneration ability,which can lead to heart failure after myocardial infarction.In contrast,zebrafish exhibit remarkable cardiac regeneration capacity.Several cell types and signaling pathways have been reported to participate in this process.However,a comprehensive analysis of how different cells and signals interact and coordinate to regulate cardiac regeneration is unavailable.We collected major cardiac cell types from zebrafish and performed high-precision single-cell transcriptome analyses during both development and post-injury regeneration.We revealed the cellular heterogeneity as well as the molecular progress of cardiomyocytes during these processes,and identified a subtype of atrial cardiomyocyte exhibiting a stem-like state which may transdifferentiate into ventricular cardiomyocytes during regeneration.Furthermore,we identified a regeneration-induced cell(RIC)population in the epicardium-derived cells(EPDC),and demonstrated Angiopoietin 4(Angpt4)as a specific regulator of heart regeneration.angpt4 expression is specifically and transiently activated in RIC,which initiates a signaling cascade from EPDC to endocardium through the Tie2-MAPK pathway,and further induces activation of cathepsin K in cardiomyocytes through RA signaling.Loss of angpt4 leads to defects in scar tissue resolution and cardiomyocyte proliferation,while overexpression of angpt4 accelerates regeneration.Furthermore,we found that ANGPT4 could enhance proliferation of neonatal rat cardiomyocytes,and promote cardiac repair in mice after myocardial infarction,indicating that the function of Angpt4 is conserved in mammals.Our study provides a mechanistic understanding of heart regeneration at single-cell precision,identifies Angpt4 as a key regulator of cardiomyocyte proliferation and regeneration,and offers a novel therapeutic target for improved recovery after human heart injuries. | Zekai Wu Yuan Shi Yueli Cui Xin Xing Liya Zhang Da Liu Yutian Zhang Ji Dong Li Jin Meijun Pang Rui-Ping Xiao Zuoyan Zhu Jing-Wei Xiong Xiangjun Tong Yan Zhang Shiqiang Wang Fuchou Tang Bo Zhang | 2023 | Protein & Cell2023,14,5: | 0 |