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| 1 | Field investigations of high stress soft surrounding rocks and deformation control显示文摘Field investigations of high stress soft rock deformations show that the high stress soft rock roadway can slide with large deformation. Severe extrusion and floor heave can also be subsequently observed. The supported roadway can be locally damaged or completely fail, where the floor has a large deformation and/or is seriously damaged. The factors inducing large deformation of surrounding rocks in deep roadway are rock strengths, structure face cutting types, stress states, stress release, support patterns,and construction methods. Based on the deformation characteristics of high stress soft rock roadway, a comprehensive support scheme is proposed. The overall support technology of 'step-by-step and joint,hierarchical reinforcement' for roadway is presented, and the anchor cable and bolt parameters to check the design methods are also given. Finally, the proposed comprehensive support method 'bolt t metal mesh t U-steel arch t shortcrete t grouting and cable' is used in the extension section of east main haulage roadway at 850 m level of Qujiang coal mine. The 173-day monitoring results show that the average convergence of sidewalls reaches 208 mm, and the average relative convergence of roof and floor reaches 448 mm, suggesting that this kind of support technology for controlling large deformation of high stress soft surrounding rock roadway is effective. | Weijian Yu Weijun Wang Xinyuan Chen Shaohua Du | 2015 | Journal of Rock Mechanics and Geotechnical Engineering2015，7，4： | 12 |
| 2 | Dynamic tensile behaviour and crack propagation of coal under coupled static-dynamic loading显示文摘The fracture behaviour and crack propagation features of coal under coupled static-dynamic loading conditions are important when evaluating the dynamic failure of coal.In this study,coupled static-dynamic loading tests are conducted on Brazilian disc(BD)coal specimens using a modified split Hopkinson pressure bar(SHPB).The effects of the static axial pre-stress and loading rate on the dynamic tensile strength and crack propagation characteristics of BD coal specimens are studied.The average dynamic indirect tensile strength of coal specimens increases first and then decreases with the static axial pre-stress increasing.When no static axial pre-stress is applied,or the static axial pre-stress is 30%of the static tensile strength,the dynamic indirect tensile strength of coal specimens shows an increase trend as the loading rate increases.When the static axial pre-stress is 60%of the static tensile strength,the dynamic indirect tensile strength shows a fluctuant trend as the loading rate increases.According to the crack propagation process of coal specimens recorded by high-speed camera,the impact velocity influences the mode of crack propagation,while the static axial pre-stress influences the direction of crack propagation.The failure of coal specimens is a coupled tensile-shear failure under high impact velocity.When there is no static axial pre-stress,tensile cracks occur in the vertical loading direction.When the static axial pre-stress is applied,the number of cracks perpendicular to the loading direction decreases,and more cracks occur in the parallel loading direction. | Xianjie Hao Weisheng Du Yixin Zhao Zhuowen Sun Qian Zhang Shaohua Wang Haiqing Qiao | 2020 | International Journal of Mining Science and Technology2020，30，5： | 8 |
| 3 | The origin, diversification and adaptation of a major mangrove clade (Rhizophoreae) revealed by whole-genome sequencing显示文摘Mangroves invade some very marginal habitats for woody plants—at the interface between land and sea.Since mangroves anchor tropical coastal communities globally, their origin, diversification and adaptation are of scientific significance, particularly at a time of global climate change. In this study, a combination of single-molecule long reads and the more conventional short reads are generated from Rhizophora apiculata for the de novo assembly of its genome to a near chromosome level. The longest scaffold, N50 and N90 for the R. apiculata genome, are 13.3 Mb, 5.4 Mb and 1.0 Mb, respectively. Short reads for the genomes and transcriptomes of eight related species are also generated. We find that the ancestor of Rhizophoreae experienced a whole-genome duplication ~70 Myrs ago, which is followed rather quickly by colonization and species diversification. Mangroves exhibit pan-exome modifications of amino acid(AA) usage as well as unusual AA substitutions among closely related species. The usage and substitution of AAs, unique among plants surveyed, is correlated with the rapid evolution of proteins in mangroves. A small subset of these substitutions is associated with mangroves' highly specialized traits(vivipary and red bark) thought to be adaptive in the intertidal habitats. Despite the many adaptive features, mangroves are among the least genetically diverse plants, likely the result of continual habitat turnovers caused by repeated rises and falls of sea level in the geologically recent past. Mangrove genomes thus inform about their past evolutionary success as well as portend a possibly difficult future. | Shaohua Xu Ziwen He Zhang Zhang Zixiao Guo Wuxia Guo Haomin Lyu Jianfang Li Ming Yang Zhenglin Du Yelin Huang Renchao Zhou Cairong Zhong David E. Boufford Manuel Lerdau Chung-I Wu Norman C. Duke Suhua Shi | 2017 | National Science Review2017，4，5： | 7 |
| 4 | Experimental and theoretical investigation on mechanisms performance of the rock-coal-bolt(RCB)composite system显示文摘For coal mines,rock,coal,and rock bolt are the critical constituent materials for surrounding rock in the underground engineering.The stability of the“rock-coal-bolt”(RCB)composite system is affected by the structure and fracture of the coal-rock mass.More rock bolts installed on the rock,more complex condition of the engineering stress environment will be(tensile-shear composite stress is principal).In this paper,experimental analysis and theoretical verification were performed on the RCB composite system with different angles.The results revealed that the failure of the rock-coal(RC)composite specimen was caused by tensile and shear cracks.After anchoring,the reinforcement body formed inside the composite system limits the area where the crack could occur in the specimen.Specifically,shearing damage occurred only around the bolt,and the stress-strain curve presented a better post-peak mechanical property.The mechanical mechanism of the bolt under the combined action of tension and shear stress was analyzed.Additionally,a rock-coal-bolt tensile-shear mechanical(RCBTSM)model was established.The relationship(similar to the exponential function)between the bolt tensile-shear stress and the angle was obtained.Moreover,the influences of the dilatancy angle and bolt diameter of the RCB composite system were also considered and analyzed.Most of the bolts are subjected to the tensile-shearing action in the post-peak stage.The implications of these results for engineering practice indicated that the bolts of the RCB composite system should be prevented from entering the limit shearing state early. | Genshui Wu Weijian Yu Jianping Zuo Shaohua Du | 2020 | International Journal of Mining Science and Technology2020，30，6： | 5 |
| 5 | Burden of pancreatitis and associated risk factors in China,1990 to 2019:a systematic analysis for the Global Burden of Disease Study 2019显示文摘Background: Pancreatitis is a common disease of the digestive system. Acute pancreatitis is one of the most common reasons for gastrointestinal hospital admission, and chronic pancreatitis significantly reduces quality of life. However, national epidemiological data on pancreatitis in China are lacking. This study aimed to quantify the disease burden of pancreatitis in China from 1990 to 2019.Methods: This study was based on the Global Burden of Disease Study 2019 dataset. Age-standardized rates of incidence (ASIR), prevalence (ASPR), mortality (ASMR), and disability-adjusted life years (DALYs) were used to describe the disease burden of pancreatitis, and estimated annual percentage change (EAPC) was used to indicate the average change in age-standardized rates. We also described the trend of pancreatitis-related mortality and DALYs, which are attributable to alcohol use by age and sex.Results: From 1990 to 2019, the ASIR, ASPR, ASMR, and age-standardized DALYs of pancreatitis in China decreased by 10.90, 1.50, 0.49, and 15.54 per 100,000, respectively, with EAPCs of -1.35 (95% uncertainty interval [UI]: -1.67, -1.02) and -0.37 (95% UI: -0.43, -0.31), -2.01 (95% UI: -2.07, -1.94) and -2.32 (95% UI: -2.37, -2.28), respectively. Recently, the numbers of incident and prevalent cases have risen, with estimates of 380,018 (95% UI: 308,669-462,767) and 493,765 (95% UI: 416,705-578,675), respectively, in 2019. Among men, the disease burden of pancreatitis was more severe than among women, and with variances in the distribution among different age groups. Age-standardized DALYs caused by alcohol-related pancreatitis have gradually worsened in the past decade, accounting for 34.09% of the total in 2019.Conclusions: The disease burden of pancreatitis in China has declined in the past 30 years, but the exacerbation of population aging poses a challenge to prevention and control of pancreatitis. Alcohol use has gradually become an important factor in the disease burden of pancreatitis in recent years. | Ke Han Shimin Chen Yang Song Chen Du Fei Gao Shaohua Liu Yao He Ningli Chai Enqiang Linghu Miao Liu | 2022 | Chinese Medical Journal2022，，11： | 3 |
| 6 | On the source of the quasi-Carrington Rotation periodic magnetic variations on the Martian surface: InSight observations and modeling显示文摘In a recent paper(Luo H et al.,2022),we found that the peak amplitudes of diurnal magnetic variations,measured during martian days(sols)at the InSight landing site,exhibited quasi Carrington-Rotation(qCR)periods at higher eigenmodes of the natural orthogonal components(NOC);these results were based on~664 sols of magnetic field measurements.However,the source of these periodic variations is still unknown.In this paper we introduce the neutral-wind driven ionospheric dynamo current model(e.g.,Lillis et al.,2019)to investigate the source.Four candidates-the draped IMF,electron density/plasma density,the neutral densities,and the electron temperature in the ionosphere with artificial qCR periodicity,are applied in the modeling to find the main factor likely to be causing the observed surface magnetic field variations that exhibit the same qCR periods.Results show that the electron density/plasma density,which controls the total conductivity in the dynamo region,appears to account for the greatest part of the surface qCR variations;its contribution reaches about 67.6%.The draped IMF,the neutral densities,and the electron temperature account,respectively,for only about 12.9%,10.3%,and 9.2%of the variations.Our study implies that the qCR magnetic variations on the Martian surface are due primarily to variations of the dynamo currents caused by the electron density variations.We suggest also that the timevarying fields with the qCR period could be used to probe the Martian interior's electrical conductivity structure to a depth of at least 700 km. | Hao Luo AiMin Du ShaoHua Zhang YaSong Ge Ying Zhang ShuQuan Sun Lin Zhao Lin Tian SongYan Li | 2022 | Earth and Planetary Physics2022，6，3： | 2 |
| 7 | CdS nanocrystallites sensitized ZnO nanorods with plasmon enhanced photoelectrochemical performance显示文摘A novel architecture of CdS/ZnO nanorods with plasmonic silver(Ag) nanoparticles deposited at the interface of ZnO nanorods and CdS nanocrystallites,was designed as a photoanode for solar hydrogen generation,with photocurrent density achieving 4.7 mA/cm^2 at 1.6 V(vs.RHE),which is 8 and 1.7 times as high as those of pure ZnO and CdS/ZnO nanorod films,respectively.Additionally,with optical absorption onset extended to^660 nm,CdS/Ag/ZnO nanorod film exhibits significantly increased incident photo-tocurrent efficiency(IPCE) in the whole optical absorption region,reaching 23.1% and 9.8% at 400 nm and500 nm,respectively.The PEC enhancement can be attributed to the one-dimensional ZnO nanorod structure maintained for superior charge transfer,and the extended visible-light absorption of CdS nanocrystallites.Moreover,the incorporated plasmonic Ag nanoparticles could further promote the interfacial charge carrier transfer process and enhance the optical absorption ability,due to its excellent plasmon resonance effect. | Li Cai Yuanchang Du Xiangjiu Guan Shaohua Shen | 2019 | Chinese Chemical Letters2019，30，12： | 2 |
| 8 | Small molecule SMU-CX24 targeting toll-like receptor 3 counteracts inflammation:A novel approach to atherosclerosis therapy显示文摘Toll-like receptor 3(TLR3),as an important pattern recognition receptor(PRR),dominates the innate and adaptive immunity regulating many acute and chronic inflammatory diseases.Atherosclerosis is proved as an inflammatory disease,and inflammatory events involved in the entire process of initiation and deterioration.However,the contribution of TLR3 to atherosclerosis remains unclear.Herein,we identified the clinical relevance of TLR3 upregulation and disease processes in human atherosclerosis.Besides,activation of TLR3 also directly led to significant expression of atherogenic chemokines and adhesion molecules.Conversely,silencing TLR3 inhibited the uptake of oxLDL by macrophages and significantly reduced foam cell formation.Given the aberrance in TLR3 functions on atherosclerosis progression,we hypothesized that TLR3 could serve as novel target for clinical atherosclerosis therapy.Therefore,we developed the novel ellipticine derivative SMU-CX24,which specifically inhibited TLR3(IC_(50)=18.87±2.21 nmol/L).In vivo,atherosclerotic burden was alleviated in Western diet fed ApoE^(−/−)mice in response to SMU-CX24 treatment,accompanying notable reductions in TLR3 expression and inflammation infiltration within atherosclerotic lesion.Thus,for the first time,we revealed that pharmacological downregulation of TLR3 with specific inhibitor regenerated inflammatory environment to counteract atherosclerosis progression,thereby proposing a new strategy and probe for atherosclerosis therapy. | Xiaohong Cen Baoqu Wang Yuqing Liang Yanlin Chen Yu Xiao Shaohua Du Kutty Selva Nandakumar Hang Yin Shuwen Liu Kui Cheng | 2022 | Acta Pharmaceutica Sinica B2022，12，9： | 2 |
| 9 | 3-D numerical calculation of magnetic drag parachute显示文摘The concept of using an externally applied magnetic field to add the drag force of a hypersonic reentry vehicle during the blackout was proposed by Bush in 1958.The increased drag force is caused by electromagnetic force that is introduced by interaction between the applied magnetic field and the weakly ionized airflow around the reentry vehicle.We investigated the influences of magnetic field intensities on the drag forces of a reentry vehicle by three dimensional(3-D)magnetohydrodynamics(MHD)simulation.The results showed that the drag fore exerted on the vehicle reached 25 kN when the magnetic field was 0.4 T.The drag force increased with the enhanced intial magnetic field.The bow shock was also pushed far away from the vehicle when the magnetic field was strengthened. | ZHANG ShaoHua ZHAO Hua DU AiMin CAO Xin | 2013 | Science China(Technological Sciences)2013，56，8： | 2 |
| 10 | A Cooperative Network Intrusion Detection Based on Fuzzy SVMs显示文摘 | Teng Shaohua Du Hongle Wu Naiqi | 2010 | Journal of Network2010，5，4： | 1 |
| 11 | A Cooperative Net- work Intrusion Detection Based on Fuzzy SVMs显示文摘 | Teng Shaohua Du Hongle Wu Naiqi | 2010 | Journal of Networks2010，5，4： | 1 |
| 12 | A cooperative network intrusion detection based on fuzzy SVMs显示文摘 | Teng Shaohua Du Hongle Wu Naiqi | 2010 | Journal of Network2010，5，4： | 1 |
| 13 | Stromal Cell- De?rived Factor - 1 significantly induces proliferation, migra?tion, and collagen type 1 expression in a human periodontal ligament stem cell subpopulation显示文摘 | Lingqian Du Pishan Yang Shaohua Ge | 2012 | J Periodontal2012，83，3： | 1 |
| 14 | Parameter Optimization on Experimental Study to Reduce Ammonia Escape in CO_2 Absorption by Ammonia Scrubbing显示文摘In order to research ammonia escape in CO2 absorption by ammonia scrubbing,ammonia escape was studied in CO2 absorption process using the bubbling reactor in different conditions as gas flow rate,CO2 ratio,absorbent temperature and ammonia concentration and quantity of escaped ammonia was measured by chemical titration. The results indicated that,the amount of ammonia escape can be around 20% of original amount in90 min and the escaped amount will increase with the rise of gas flow rate, absorbent temperature,concentration of ammonia while decrease as CO2 ratio goes up. Through the analysis of the law of ammonia escape,at the same time,combined with ammonia escape and the influence of the relationship between the CO2 absorption efficiency,reducing ammonia escape working condition parameter optimization is given. | Hao Leng Jianmin Gao Mingyue He Min Xie Qian Du Rui Sun Shaohua Wu | 2016 | Journal of Harbin Institute of Technology(New Series)2016，23，1： | 1 |
| 15 | Transmission of 200 Tb/s (375 × 3 × 178.125 Gb/s) PDM-DFTS-OFDM-32QAM super channel over lkm FMF显示文摘 | Ming LUO Qi MO Xiang LI Rong HU Ying QIU Cai LI Zhijian LIU Wu LIU Huang YU Wei DU Jing XU Zhixue HE Qi YANG Shaohua YU | 2015 | Frontiers of Optoelectronics2015，8，4： | 1 |
| 16 | Electron Acceleration in a Dynamically Evolved Current Sheet Under Solar Coronal Conditions显示文摘 | Shaohua Zhang A. M. Du Xueshang Feng Xin Cao Quanming Lu Liping Yang Gengxiong Chen Ying Zhang | 2014 | Solar Physics2014，，5： | 1 |
| 17 | Wood-derived biochar as thick electrodes for high-rate performance supercapacitors显示文摘Developing effective electrodes with commercial-level active mass-loading(>10 mg cm^(−2))is vital for the practical application of supercapacitors.However,high active mass-loading usually requires thick active mass layer,which severely hinders the ion/electron transport and results in poor capacitive performance.Herein,a self-standing biochar electrode with active mass-loading of ca.40 mg cm^(−2) and thickness of 800μm has been developed from basswood.The basswood was treated with formamide to incorporate N/O in the carbon structure,followed by mild KOH activation to ameliorate the pore size and introduce more O species in the carbon matrix.The as-prepared carbon monoliths possess well conductive carbon skeleton,abundant N/O dopant and 3D porous structure,which are favorable for the ion/electron transport and promoting capacitance performance.The self-standing carbon electrode not only exhibits the maximum areal/mass/volumetric specific capacitance of 5037.5 mF cm^(−2)/172.5 F g^(−1)/63.0 F cm^(−3) at 2 mA cm^(−2)(0.05 A g^(−1)),but also displays excellent rate performance with 76%capacitance retention at 500 mA cm^(−2)(12.5 A g^(−1))in a symmetric supercapacitor,surpassing the state-of-art biomass-based thick carbon electrode.The assembled model can power typical electron devices including a fan,a digital watch and a logo made up of 34 light-emitting diodes for a proper period,revealing its practical application potential.This study not only puts forward a commercial-level high active mass-loading electrode from biomass for supercapacitor,but also bridges the gap between the experimental research and practical application. | Bing Yan Jiaojiao Zheng Li Feng Cheng Du Shaoju Jian Weisen Yang Yimin A.Wu Shaohua Jiang Shuijian He Wei Chen | 2022 | Biochar2022，4，1： | 1 |
| 18 | Molecule diffusion behaviours of waterproof sealants into silicone rubber insulation for submarine cable joint based on molecular dynamics simulations显示文摘The repair joints of high-voltage cables play a significant role in the urgent cable main-tenance,by recovering cable conductor,insulation,shielding layer and waterproof layer especially for submarine cables.However,the molecule diffusion and permeation pro-cesses from waterproof sealant into the cable joint insulation occur,leading to the insulation ageing and deterioration.In this article,the molecule diffusion behaviours of six typical molecules from the asphalt-based and polyurethane-based waterproof sealants into silicone rubber insulation are investigated.The results show that the order of diffusion coefficients is as follows,phenanthrene>fluoranthene>pyrene>benzo[k]fluoranthene>indeno[1,2,3-cd]pyrene>polyurethane(PU).The relative molecular mass and binding energy are pivotal factors affecting the diffusion behaviour,while there is a linear relationship between the logarithm of the diffusion coefficient and the ratio of binding energy to relative molecular mass.Besides,the rising ambient temperature in-creases the fraction of free volume of silicone rubber and decreases the binding energy,thus resulting in a higher diffusion coefficient and an enhanced permeation process of the asphalt-based sealant.In summary,the PU-based waterproof sealant,with a much lower permeability than the asphalt-based material,has a potential application in the waterproof layer for high-voltage submarine cable repair joints. | Zhenpeng Zhang Heyu Wang Zhonglei Li Jiankang Zhao Shaohua Wang Wenlin Pan Wenjie Li Te Li Boxue Du | 2021 | High Voltage2021，6，2： | 1 |
| 19 | A cooperative net- work intrusion detection based on fuzzy SVMs 显示文摘 | Teng Shaohua Du Hongle Wu Naiqi | 2010 | Journal of Networks2010，5，4： | 1 |
| 20 | Sequential Growth of Cs_(3)Bi_(2)I_(9)/BiVO_(4)Direct Z-Scheme Heterojunction for Visible-Light-Driven Photocatalytic CO_(2)Reduction显示文摘The high exciton binding energy and lack of a positive oxidation band potential restrict the photocatalytic CO_(2)reduction efficiency of lead-free Bi-based halide perovskites Cs_(3)Bi_(2)X_(9)(X=Br,I).In this study,a sequential growth method is presented to prepare a visible-light-driven(λ>420 nm)Z-scheme heterojunction photocatalyst composed of BiVO_(4)nanocrystals decorated on a Cs_(3)Bi_(2)I_(9)nanosheet for photocatalytic CO_(2)reduction coupled with water oxidation.The Cs_(3)Bi_(2)I_(9)/BiVO_(4)Z-scheme heterojunction photocatalyst is stable in the gas-solid photocatalytic CO_(2)reduction system,demonstrating a high visible-light-driven photocatalytic CO_(2)-to-CO production rate of 17.5μmol/(g·h),which is approximately three times that of pristine Cs_(3)Bi_(2)I_(9).The high efficiency of the Cs_(3)Bi_(2)I_(9)/BiVO_(4)heterojunction was attributed to the improved charge separation in Cs_(3)Bi_(2)I_(9).Moreover,the Z-scheme charge-transfer pathway preserves the negative reduction potential of Cs_(3)Bi_(2)I_(9)and the positive oxidation potential of BiVO_()4.This study off ers solid evidence of constructing Z-scheme heterojunctions to improve the photocatalytic performance of lead-free halide perovskites and would inspire more ideas for developing leadfree halide perovskite photocatalysts. | Long Jiang Hanrui Du Le Li Xiangjiu Guan Yihao Zhang Liwei Li Xiaoxu Liu Lei Li Yingcheng Tian Li Zhang Shuai Wang Jie Chen Shaohua Shen | 2023 | Transactions of Tianjin University2023，29，6： | 0 |
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