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| 1 | Directional hydraulic fracturing to control hard-roof rockburst in coal mines显示文摘Hard roof is the main factor that induces rock-burst.In view of the present obvious weakness of control measures for hard roof rockburst in domestic collieries,the mechanism and field application of directional hydraulic fracturing technology for rock-burst prevention have been investigated in this paper using theoretical analysis and numerical simulation.The results show that the weighting span of the main roof and the released kinetic energy as well as the total elastic energy decreased greatly after the directional fracturing of hard roof with the mining progression,thereby reducing the rockburst hazard degree to coal body.The directional hydraulic fracturing technology was carried out in 6305 working face of Jisan Coal Mine to prevent rockburst.Field practices have proved that this technology is much simpler and safer to operate with better prevention effect compared with blasting.By optimizing the operation procedures and developing a new technology of automated high-pressure delivery pipe,the maximum fracturing radius now reaches more than 9 m and the borehole depth exceeds 20 m.Additionally,drilling cutting method was applied to monitor the stress of the coal mass before and after the fracturing,and the drill cuttings dropped significantly which indicates that the burst prevention effect of directional hydraulic fracturing technology is very remarkable.The research results of this paper have laid a theoretical and practical foundation for the widespread application of the directional hydraulic fracturing technology in China. | Fan Jun Dou Linming He Hu Du Taotao Zhang Shibin Gui Bing Sun Xinglin | 2012 | International Journal of Mining Science and Technology2012，22，2： | 28 |
| 2 | Investigation on high angle of attack characteristics of hypersonic space vehicle显示文摘The high angle of attack characteristics play an important role in the aerodynamic performances of the hypersonic space vehicle. The three-dimensional Reynolds Averaged Navier-Stokes (RANS) equations and the two-equation RNG k-? turbulence model have been employed to investigate the influence of the high angle of attack on the lift-to-drag ratio and the flow field characteristics of the hypersonic space vehicle, and the contributions of each component to the aerodynamic forces of the vehicle have been discussed as well. At the same time, in order to validate the numerical method, the predicted results have been compared with the available experimental data of a hypersonic slender vehicle, and the grid independency has been analyzed. The obtained results show that the predicted lift-to-drag ratio and pitching moment coefficient show very good agreement with the experimental data in the open literature, and the grid system makes only a slight difference to the numerical results. There exists an optimal angle of attack for the aerodynamic performance of the hypersonic space vehicle, and its value is 20°. When the angle of attack is 20°, the high pressure does not leak from around the leading edge to the upper surface. With the further increasing of the angle of attack, the high pressure spreads from the wing tips to the central area of the vehicle, and overflows from the leading edge again. Further, the head plays an important role in the drag performance of the vehicle, and the lift percentage of the flaperon is larger than that of the rudderevator. This illustrates that the optimization of the flaperon configuration is a great work for the improvement of the aerodynamic performance of the hypersonic space vehicle, especially for a high lift-to-drag ratio. | HUANG Wei LI ShiBin LIU Jun WANG ZhenGuo | 2012 | Science China(Technological Sciences)2012，55，5： | 19 |
| 3 | Quantum secure direct communication and authentication protocol with single photons显示文摘A quantum secure direct communication and authentication protocol is proposed by using single photons.An information transmission is completed by sending photons once in quantum channel,which improves the efficiency without losing the security.The protocol encodes identity-string of the receiver as single photons sequence,which acts as detection sequence and implements authentication.Before secret message is encoded as single photons sequence,it is encrypted with identity-string of the sender by using XOR operation,which defends quantum teleportation attack efficiently.The base identity-strings of the sender and the receiver are reused unconditionally secure even in noisy channel.Compared with the protocol proposed by Wang et al.(Phys Lett A,2006,358:256–258),the protocol in this study sends photons once in one transmission and defends most attacks including‘man-in-the-middle’attack and quantum teleportation attack efficiently. | CHANG Yan XU ChunXiang ZHANG ShiBin YAN LiLi | 2013 | Chinese Science Bulletin2013，58，36： | 16 |
| 4 | Design and aerodynamic investigation of a parallel vehicle on a wide-speed range显示文摘In order to design a hypersonic vehicle for a wide-ranged Mach number,a novel parallel vehicle for a wide-speed range has been proposed.In this paper,we employ a numerical method to investigate a parallel vehicle’s aerodynamic performance and flow field characteristics.The obtained results show that the aerodynamic performance of the novel parallel vehicle is better than that of the waverider designed with a single Mach number for the wide-speed range.With the increase in Mach number,the lift-to-drag ratio of the novel parallel vehicle first increases and then decreases.When the Mach number is 7 and the angle of attack is 3?,the lift-to-drag ratio is the largest,and its value is 3.968.When the angle of attack is 3?,the lift-to-drag ratio is not lower than 3.786 in the range considered in the current study,and the novel parallel vehicle’s aerodynamic performance is good.The wing changes the drag performance of the parallel vehicle remarkably,and results in the decrease of the lift-to-drag ratio.Meanwhile,the wing can enhance the pitching moment performance. | LI ShiBin HUANG Wei WANG ZhenGuo LEI Jing | 2014 | Science China(Information Sciences)2014，57，12： | 16 |
| 5 | Basic research on machinery fault diagnostics: Past, present, and future trends显示文摘 | Xuefeng CHEN Shibin WANG Baijie QIAO Qiang CHEN | 2018 | Frontiers of Mechanical Engineering2018，13，2： | 14 |
| 6 | Applications of rock failure process analysis (RFPA) method显示文摘Brittle failure of rocks is a classical rock mechanical problem.Rock failure not only involves initiation and propagation of single crack,but also is associated with initiation,propagation and coalescence of many cracks.The rock failure process analysis(RFPA)tool has been proposed since 1995.The heterogeneity of rocks at a mesoscopic level is considered by assuming that the material properties follow the Weibull distribution.Elastic damage mechanics is used for describing the constitutive law of the meso-level element.The finite element method(FEM)is employed as the basic stress analysis tool.The maximum tensile strain criterion and the Mohr-Coulomb criterion are utilized as the damage threshold.In order to solve the stability problem related to rock engineering structures,fundamental principles of strength reduction method(SRM)and gravity increase method(GIM)are integrated into the RFPA.And the acoustic emission(AE)event rate is employed as the criterion for rock engineering failure.The prominent feature of the RFPA-SRM and RFPA-GIM for stability analysis of rock engineering is that the factor of safety can be obtained without any presumption for the shape and location of the failure surface.In this paper,several geotechnical engineering applications that use the RFPA method to analyze their stability are presented to provide some references for relevant researches.The principles of the RFPA method in engineering are introduced firstly,and then the stability analysis of tunnel,slope and dam is focused on.The results indicate that the RFPA method is capable of capturing the mechanism of rock engineering stability and has the potential for application in a larger range of geo-engineering. | Chun'an Tang Shibin Tang | 2011 | Journal of Rock Mechanics and Geotechnical Engineering2011，3，4： | 14 |
| 7 | Controlled quantum secure direct communication and authentication protocol based on five-particle cluster state and quantum one-time pad显示文摘A controlled quantum secure direct communication and authentication protocol is proposed with a quantum one-time pad based on five-particle cluster state.Photon 4 in each five-particle cluster state is sent to the controller as permission.Unitary operation I(U)on photon4 according to identity-string of the receiver is used to forbid the controller to deduce secret message.The classical XOR operation serving as a one-time-pad is used to forbid external eavesdroppers to eavesdrop.Eavesdropping detection and identity authentication are implemented by previously shared reusable base identity-strings.In one transmission,one qubit of each five-particle cluster state is used as controller’s permission,and two qubits are used to transmit two classical bit information. | Yan Chang Chunxiang Xu Shibin Zhang Lili Yan | 2014 | Chinese Science Bulletin2014，59，21： | 13 |
| 8 | A survey on numerical simulations of drag and heat reduction mechanism in supersonic/hypersonic flows显示文摘Along with the survey on experimental investigations drawing attention to the drag and heat reduction mechanism, the authors simultaneously focus on the recent advances of numerical simulations on the schemes applied to supersonic/hypersonic vehicles. The CFD study has evolved as an irreplaceable method in scheme evaluation and aircraft optimization. Similar to our previous experimental survey, the advances in drag and heat reduction schemes are reviewed by similar kinds of mechanism in this article, namely the forward-facing cavity, the opposing jet, the aerospike, the energy deposition and their combinational configurations. This review article puts an emphatic eye on the flow conditions, numerical methods, novel schemes and analytical conclusions given in the simulations. Further, the multi-objective design optimization concept has also been illustrated due to the observable advantages of using CFD over experimental method, especially those performances conducted in drag reduction and thermal protection practice, and this would possess reference value in the design of aircraft system. | Xiwan SUN Wei HUANG Min OU Ruirui ZHANG Shibin LI | 2019 | Chinese Journal of Aeronautics2019，32，4： | 12 |
| 9 | Synthesis of condensed polynuclear aromatic resin from furfural extract oil of reduced-pressure route Ⅱ显示文摘As an industrial byproduct of oil refining,furfural extract oil from reduced-pressure route Ⅱ with high aromatic content was used to prepare heat-resistant condensed polynuclear aromatic(COPNA) resin for the first time.The basic properties of furfural extract oil and the resultant COPNA resin were characterized by infrared spectroscopy(FT-IR),nuclear magnetic resonance spectroscopy(1H-NMR),thermogravimetric analysis(TGA) and elemental analysis(EA).The result showed that heat treated furfural extract oil was successfully used for the synthesis of heat-resistant COPNA resin.The average structural parameters of raw materials and prepared resin were calculated by the improved Brown-Ladner method,and the averaged molecular structure of the resin was obtained.The reaction mechanism for the synthesis of COPNA resin was suggested as an acid-catalyzed positive ion type polymerization. | Wu Mingbo Jiang Wei Wang Yuwei Li Shibin Zheng Jingtang | 2013 | Petroleum Science2013，10，4： | 10 |
| 10 | The rare two-dimensional materials with Dirac cones显示文摘Inspired by the great development of graphene, more and more research has been conducted to seek new two-dimensional(2D) materials with Dirac cones. Although 2D Dirac materials possess many novel properties and physics, they are rare compared with the numerous 2D materials. To provide explanation for the rarity of 2D Dirac materials as well as clues in searching for new Dirac systems, here we review the recent theoretical aspects of various 2D Dirac materials, including graphene, silicene, germanene,graphynes, several boron and carbon sheets, transition-metal oxides(VO2)n/(TiO2)m and(CrO2)n/(TiO2)m, organic and organometallic crystals, so-MoS2, and artiicial latices(electron gases and ultracold atoms). heir structural and electronic properties are summarized. We also investigate how Dirac points emerge, move, and merge in these systems. he von Neumann–Wigner theorem is used to explain the scarcity of Dirac cones in 2D systems, which leads to rigorous requirements on the symmetry,parameters, Fermi level, and band overlap of materials to achieve Dirac cones. Connections between existence of Dirac cones and the structural features are also discussed. | Jinying Wang Shibin Deng Zhongfan Liu Zhirong Liu | 2015 | National Science Review2015，2，1： | 10 |
| 11 | Research status of key techniques for shock-induced combustion ramjet(shcramjet) engine显示文摘As one of the most promising propulsion systems in the future,shock-induced combustion ramjet engine can remedy the disadvantages in the integrated design of scramjet engine and airframe.It can shorten the length of the combustor,lighten the structure weight of the engine and keep better performance in a broad range of flight Mach number.The elementary principle of shock-induced combustion ramjet engine is introduced.The key technologies of this kind of propulsion system are described,while their research status is presented in detail.Suggestion on the development of shcramjet engine in China is put forward. | HUANG Wei,QIN Hui,LUO ShiBin & WANG ZhenGuo Institute of Aerospace & Materials Engineering,National University of Defense Technology,Changsha 410073,China | 2010 | Science China(Technological Sciences)2010，53，1： | 9 |
| 12 | Parametric estimation of discretely sampled Gamma-OU processes显示文摘The stationary Gamma-OU processes are recommended to be the volatility of the financial assets. A parametric estimation for the Gamma-OU processes based on the discrete observations is considered in this paper. The estimator of an intensity parameter λ and its convergence result are given, and the simulations show that the estimation is quite accurate. Assuming that the parameter λ is estimated, the maximum likelihood estimation of shape parameter c and scale parameter α, whose likelihood function is not explicitly computable, is considered. By means of the Gaver-Stehfest algorithm, we construct an explicit sequence of approximations to the likelihood function and show that it converges the true (but unkown) one. Maximizing the sequence results in an estimator that converges to the true maximum likelihood estimator and the approximation shares the asymptotic properties of the true maximum likelihood estimator. Some simulation experiments reveal that this method is still quite accurate in most of rational situations for the background of volatility. | ZHANG Shibin,ZHANG Xinsheng & SUN Shuguang School of Management, Fudan University, Shanghai 200433, China Department of Mathematics, Shanghai Maritime University, Shanghai 200135, China | 2006 | Science China Mathematics2006，49，9： | 7 |
| 13 | N‑Doped Graphene‑Decorated NiCo Alloy Coupled with Mesoporous NiCoMoO Nano‑sheet Heterojunction for Enhanced Water Electrolysis Activity at High Current Density显示文摘Developing highly effective and stable non-noble metalbased bifunctional catalyst working at high current density is an urgent issue for water electrolysis(WE).Herein,we prepare the N-doped graphene-decorated NiCo alloy coupled with mesoporous NiCoMoO nano-sheet grown on 3D nickel foam(NiCo@C-NiCoMoO/NF)for water splitting.NiCo@C-NiCoMoO/NF exhibits outstanding activity with low overpotentials for hydrogen and oxygen evolution reaction(HER:39/266 mV;OER:260/390 mV)at±10 and±1000 mA cm^(−2).More importantly,in 6.0 M KOH solution at 60℃ for WE,it only requires 1.90 V to reach 1000 mA cm−2 and shows excellent stability for 43 h,exhibiting the potential for actual application.The good performance can be assigned to N-doped graphene-decorated NiCo alloy and mesoporous NiCoMoO nano-sheet,which not only increase the intrinsic activity and expose abundant catalytic activity sites,but also enhance its chemical and mechanical stability.This work thus could provide a promising material for industrial hydrogen production. | Guangfu Qian Jinli Chen Tianqi Yu Lin Luo Shibin Yin | 2021 | Nano-Micro Letters2021，13，5： | 7 |
| 14 | Synthesis and Characterization of Condensed Polynuclear Aromatic Resin Derived from Ethylene Tar显示文摘As a kind of low-cost and readily available industrial byproduct, ethylene tar (ET) was for the first time utilized for the preparation of heat-resistant condensed polynuclear aromatic resin (COPNAR). The basic properties of ET and the resulted COPNAR were characterized by FT-IR, 1H-NMR, TGA and elemental analysis. The test results showed that ET with high aromatic content (>50%) was suitable for the synthesis of COPNAR with superior heat resistance. The average molecular structure of ET was obtained by means of the improved Brown-Ladner method, and the reaction mechanism was considered as an acid-catalyzed positive ion-typed polymerization. Our findings have provided a new route to develop ET into technology-added heat-resistant resins. | Wu Mingbo Shi Yangyang Li Shibin Wang Yuwei Tan Minghui Wang Ding Zheng Jingtang Tsubaki Noritatsu | 2012 | China Petroleum Processing & Petrochemical Technology2012，14，4： | 7 |
| 15 | Impact of living mulch on soil C:N:P stoichiometry in orchards across China:A meta-analysis examining climatic,edaphic,and biotic dependency显示文摘The use of living mulch in orchards is a widely accepted management strategy for improving soil quality and enhancing tree productivity.Although the effects of living mulch on soil organic carbon(C)and nutrients have been previously investigated,changes in the stoichiometric ratios of C,soil total nitrogen(N),and soil total phosphorous(P)under different climatic,edaphic,and biotic conditions are currently unknown.These factors are important indicators of elemental balance associated with ecological interactions.In order to examine the effects of living mulch in orchards on soil C:N:P stoichiometry under different conditions,a meta-analysis was undertaken.The results showed that in general,living mulch significantly(P<0.05)increased C:P and N:P ratio,while the impact on C:N ratio was not significant,a result that was related to the coupled increase of C and N.Phosphorous limitation occurred shortly after the addition of living mulch;after four years this effect receded.In contrast,an increase in C occurred simultaneously with N increase at all stages.Specifically,the treatment effect was context-dependent.The living mulch did not change soil stoichiometry in orchards with old trees(>10 years),an occurrence which may be related to changes in the amount of fungi.Grass life history also had a significant influence on the treatment effect on soil stoichiometry,while N-fixing characteristics did not.The treatment effect was significant in areas with moderate mean annual temperature and mean annual precipitation,which might be related to the litter ratio of grass and trees.Effects on stoichiometric ratios were significant in the top soil layer(0–20 cm),in contrast to the deep soil layers.Therefore,grass species and management practices,such as fertilization,should be selected according to the specific soil and climatic conditions of the management area. | Guo CHEN Shibin LIU Yangzhou XIANG Xiaolu TANG Haitao LIU Bin YAO Xuqiang LUO | 2020 | Pedosphere2020，30，2： | 7 |
| 16 | Promoted effect of zinc–nickel bimetallic oxides supported on HZSM-5 catalysts in aromatization of methanol显示文摘Zn/ZSM-5(NZ2) and Zn/Ni/ZSM-5(NZ3) as the catalysts for methanol to aromatics(MTA) were synthesized by a simple ultrasonic impregnation. The textural and acid properties of all catalysts were characterized using XRD, HRTEM, NH_3-TPD, Py-IR, XPS, XRF and TG techniques. The XRD and HRTEM results showed that the basic zeolite structures were not affected much with the incorporation of Zn and Ni species. However, great changes have taken place in acid properties. The Py-IR and XPS results indicated that the Zn-Lewis acid sites(ZnOH^+ species), which have stronger interaction with the zeolite framework compared with ZnO species, were generated at the expense of B acid sites with the incorporation of zinc species. Moreover, the product analysis results showed that the incorporation of zinc species promoted the primary aromatization by enhancing the dehydroaromatization and suppressing the cracking and subsequent H-transfer reaction. Furthermore, the addition of Ni species well inhibited the loss of zinc species by converting partial ZnO species to ZnOH^+ species, and thus improved the aromatization activity and catalyst stability. The catalytic performance results showed that the NZ3 possess higher conversion of methanol in a longer time and lower average rate of coke formation compared with NZ2. In addition,the NZ3 also exhibited the highest yield of BTX as the reaction proceeds. | Yanming Jia Junwen Wang Kan Zhang Wei Feng Shibin Liu Chuanmin Ding Ping Liu | 2017 | Journal of Energy Chemistry2017，26，3： | 7 |
| 17 | Molecule modification and mass deposition induced by the implantation of low energy Fe^+ ion beams into amino acids显示文摘Fe+ ion beams with the energy of 110 keV were implanted into films of L(+)-cysteine (HSCH2CH(NH2)COOH). One of the single crystals grown in hydrochloric acid solution with the implanted samples through slow evaporation was structurally characterized by the X-ray crystallography. The crystal is monoclinic, space group C2, with a = 1.8534(4) nm, b=0.5234(1) nm, c = 0.7212(1) nm, β=103.722°, V = 0.67965(3) nm3, Z = 4, F(000) = 144.0, Dclac = 1.763 g·cm-3, μ (MoKa) = 1.06 mm-1, T = 293(2) K.R = 0.0379, wR = 0.0835 for 660 observed reflections (I>2σ(I)). The structural formula of the crystal compound is (CH2CH(NH2)NO2)ClFe (Mr = 180.38u). Products of heavy ion beam irradiation were purified and it was directly confirmed that the implanted Fe+ ions had been deposited in the novel molecules. The same doses of Fe+ ion beams of the same energy were implanted into films of L(+)-cysteine hydrochloride monohydrate. FTIR spectroscopy of the implanted samples proved that some of the original molecules were | YUAN Shibin WEI Zengquan GAO Qingxiang | 2002 | Chinese Science Bulletin2002，47，8： | 6 |
| 18 | Discontinuous deformation and displacement analysis: From continuous to discontinuous显示文摘A discontinuous deformation and displacement(DDD) analysis method is proposed for modelling the rock failure process. This method combines the rock failure process analysis(RFPA) method(based on finite element method) and discontinuous deformation analysis(DDA) method. RFPA is used to simulate crack initiation, propagation and coalescence processes of rock during the small deformation state. The DDA method is used to simulate the movement of blocks created by the multiple cracks modelled by the RFPA. The newly developed DDD method is particularly suitable for modelling both crack propagation and block movement during the rock failure process because of the natural and convenient coupling of continuous and discontinuous deformation analyses. The proposed method has been used to simulate crack initiation, propagation and coalescence within a slope as well as the block movement during the landslide process. Numerical modelling results indicate that the proposed DDD method can automatically simulate crack propagation and block movement during the rock failure process without degrading accuracy. | TANG ChunAn TANG ShiBin GONG Bin BAI HongMei | 2015 | Science China(Technological Sciences)2015，58，9： | 6 |
| 19 | Electrochemical characterization of ion selectivity in electrodeposited nickel hexacyanoferrate thin films显示文摘electrodeposited 镍 hexacyanoferrate (NiHCF ) 的离子选择薄电影用电气化学的阻抗光谱学(EIS ) 和周期的 voltammetry (CV ) 被调查。NiHCF 薄电影被 cathodic 免职在磅和艾尔底层上准备。EIS 和 CV 曲线在 1 mol/L (KN03+CsNO3 ) 和 1 个 mol/L (NaNO3+CsNO3 ) 混合答案被决定,它对在电解质的 Cs+ 的集中敏感。所有 Nyquist 阻抗阴谋显示出的试验性的结果表演在变化在上的高周波的范围压抑半圆进在更低的频率的直线。与增加 Cs+ 的数量,在曲线向更积极的价值和氧化还原作用山峰转移的 CV 的氧化还原电位拓宽:在相应 EIS 曲线和费用转移抵抗的半圆半径也增加。EIS 联合 CV 能提供珍贵卓见进 NiHCF 薄电影的离子选择。 | Jinxia Guo Xiaogang Hao Xuli Ma Zhonglin Zhang Shibin Liu | 2008 | Journal of University of Science and Technology Beijing2008，15，1： | 6 |
| 20 | Source apportionment of perfluoroalkyl substances in surface sediments from lakes in Jiangsu Province,China:Comparison of three receptor models显示文摘Receptor models have been proved as useful tools to identify source categories and quantitatively calculate the contributions of extracted sources.In this study,sixty surface sediment samples were collected from fourteen lakes in Jiangsu Province,China.The total concentrations of C_4–C_(14)-perfluoroalkyl carboxylic acids and perfluorooctane sulfonic acid(∑_(12)PFASs) in sediments ranged from 0.264 to 4.44 ng/g dw(dry weight),with an average of 1.76 ng/g dw.Three commonly-applied receptor models,namely principal component analysis-multiple linear regression(PCA-MLR),positive matrix factorization(PMF) and Unmix models,were employed to apportion PFAS sources in sediments.Overall,these three models all could well track the ∑_(12) PFASs concentrations as well as the concentrations explained in sediments.These three models identified consistently four PFAS sources:the textile treatment sources,the fluoropolymer processing aid/fluororesin coating sources,the textile treatment/metal plating sources and the precious metal sources,contributing 28.1%,37.0%,29.7% and 5.3% by PCA-MLR model,30.60%,39.3%,22.4% and 7.7% by PMF model,and 20.6%,52.4%,20.2% and 6.8% by Unmix model to the ∑_(12) PFASs,respectively.Comparative statistics of multiple analytical methods could minimize individual-method weaknesses and provide convergent results to enhance the persuasiveness of the conclusions.The findings could give us a better knowledge of PFAS sources in aquatic environments. | Yanjie Qi Zhuoshi He Shouliang Huo Jingtian Zhang Beidou Xi Shibin Hu | 2017 | Journal of Environmental Sciences2017，29，7： | 6 |
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