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| 1 | 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 |
| 2 | 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 |
| 3 | 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 |
| 4 | 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 |
| 5 | 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 |
| 6 | DCT domain filtering method for multi-antenna code acquisition显示文摘For global navigation satellite system(GNSS) signals in Gaussian and Rayleigh fading channel, a novel signal detection algorithm is proposed. Under the low frequency uncertainty case, after performing discrete cosine transform(DCT) to the outputs of the partial matched filter(PMF) for every antenna, the high order components in the transforming domain will be filtered, then the equalgain(EG) combination for the inverse discrete cosine transform(IDCT) reconstructed signal would be done subsequently. Thus,due to the different frequency distribution characteristics between the noise and signals, after EG combination, the energy of signals has almost no loss and the noise energy is greatly reduced. The theoretical analysis and simulation results show that the detection algorithm can effectively improve the signal-to-noise ratio of the captured signal and increase the probability of detection under the same false alarm probability. In addition, it should be pointed out that this method can also be applied to Rayleigh fading channels with moving antenna. | Xiaojie Li Luping Xu Shibin Song Hua Zhang | 2013 | Journal of Systems Engineering and Electronics2013,24,5: | 6 |
| 7 | Interface engineering of high efficiency perovskite solar cells based on ZnO nanorods using atomic layer deposition显示文摘尽管有无机器官的金属混血儿 perovskite 太阳能电池(PSC ) 的更加改进的效率,电子运输仍然是一个挑战性的问题。在这份报纸,我们报导 ZnO nanorods 的使用准备了由热水象在 perovskite 的电子运输层自己组装太阳能电池。perovskite 太阳能电池的效率被使钝化显著地提高经由艾尔 2 ZnO nanorods 上的 O 3 单层。由采用艾尔 2 O 3 单层, methylammonium 铅碘化物 PSC 的平均力量变换效率从 10.33% ~ 15.06% 被增加,并且获得的最高的效率是 16.08% 。我们建议用单层的原子层免职的缺点的钝化可能为 PSC 的所有类型的改进提供一条新小径…… | Shibin Li Peng Zhang Yafei Wang Hojjatollah Sarvari Detao Liu Jiang Wu Yajie Yang Zhiming Wang Zhi David Chen | 2017 | Nano Research2017,10,3: | 6 |
| 8 | Improvements of heat resistance and adhesive property of condensed poly-nuclear aromatic resin via epoxy resin modification显示文摘A bisphenol epoxy resin was used as modifier to increase the heat resistance of condensed poly-nuclear aromatic(COPNA) resin. The basic properties of COPNA resin and modified resin were characterized by Fourier transform infrared spectroscopy(FT-IR), nuclear magnetic resonance spectroscopy(1H-NMR), vapor pressure osmometry(VPO) and elemental analysis(EA). Average structural parameters of resins were calculated by the improved Brown-Ladner method, and heat resistance of resins was tested by thermogravimetric analysis(TGA). The chemical structure, mechanical properties and heat resistivity of the resin/graphite composites prepared with different resins were compared. The results show that the adhesive property and heat resistance of COPNA resin can be remarkably improved by addition of 5 wt.% epoxy resin. The reason is that the reactions between epoxy groups of epoxy resin and hydroxyl groups of COPNA resin improve the heat resistance and adhesive property of COPNA resin. Electric motor brushes with good mechanical properties and low electrical resistivity were successfully prepared by using the modified resin as binder. | Wu Mingbo Wang Yuwei Jiang Wei Li Shibin Sun Qiqian Zheng Jingtang Qiu Jieshan | 2014 | Petroleum Science2014,11,4: | 5 |
| 9 | Epigenetic reprogramming of embryos derived from sperm frozen at-20℃显示文摘Cryopreservation of spermatozoa is a strategy that has been used to conserve the sperm of animal species and animal strains that are valuable for biomedical research. A simple method for preserving spermatozoa after application of intracytoplasmic sperm injection (ICSI) is much needed. It has been shown previously that spermatozoa frozen at 20°C can activate oocytes and support full-term embryo development. However, epigenetic reprogramming could be affected by the environment and by the in vitro manipulation of gametes. Here, we investigated embryo epigenetic reprogramming including DNA methylation and histone modification, in embryos derived from sperm preserved at 20°C without cryoprotectants. The results showed that although both fertilization and embryo developmental competence were decreased, the dynamic epigenetic reprogramming of embryos derived from frozen sperm was similar to the reprogramming of embryos derived from fresh sperm. The results reported in this study indicate that sperm frozen without cryoprotectant is epigenetically safe for ICSI. | CHAO ShiBin LI JianChun JIN XuanJin TANG HaiXun WANG GongXian GAO GuoLan | 2012 | Science China(Life Sciences)2012,55,4: | 5 |
| 10 | Experimental study on preparation of nanoparticle-surfactant nanofluids and their effects on coal surface wettability显示文摘To improve the efficiency of coal seam water injection,the influence of nanofluids on coal surface wettability was studied based on the nano drag reduction and injection enhancement technology in the field of tertiary oil recovery.The composition optimization and performance evaluation of nanofluids with nano-silica and sodium lauryl sulfate as the main components were carried out,and the effects of the nanofluid with the optimal ratio on coal wettability were studied through spontaneous upward imbibition experiments.The results show that the composite nanofluid has a lower surface tension,and the lowest value of the interfacial tension is 15.79 m N/m.Therefore,the composite nanofluid can enhance the wettability of coal.However,its effects on coal samples with different metamorphic degrees is different,that is,low rank coal is the largest,middle rank coal is the second,and high rank coal is the least.In addition,a functional relationship between time and imbibition height is found for pulverized coal with different particle sizes.When the particle size of pulverized coal is 60–80 mesh,the wettability of nanofluid to coal is best.The findings in this paper provide a new perspective for improving the water injection efficiency for coal seams with low permeability. | Gang Wang Yanqing Li Enmao Wang Qiming Huang Shibin Wang Huaixing Li | 2022 | International Journal of Mining Science and Technology2022,32,2: | 4 |
| 11 | xperimental investigation on cumulative propagation of thin film buckling under cyclic load显示文摘As instrument technology is needed for rapid determination of the smaller,thinner and lighter specimens,more stringent demands are related to thin films such as micro-electro-mechanical systems(MEMS),dielectric coatings and electronic packaging.Therefore,the requirement for testing platforms for rapidly determine the mechanical properties of thin films is increasing.Buckling of a film/substrate system could offer a variety of applications,ranging from stretchable electronics to micro-nanoscale metrology.In this paper,a fatigue-loading device has been designed to make the cyclic loading available for investigating the cumulative propagation of thin film buckling.The straight side buckling of thin compressed titanium film with the thickness of 50 nm deposited on organic glass substrates is investigated by using an optical microscope.The cumulative buckling propagation under the cyclic loading of a sequence of peak compression with the frequency 1 Hz is recorded by CCD camera.The buckling extension lengths are calculated by digital image measurement technology. | WANG ShiBin JIA HaiKun LI LinAn SUN Heng CUI DiQiang GUO ZhenShan XUE XiuLi | 2011 | Science China(Technological Sciences)2011,54,6: | 4 |
| 12 | Synthesis of hierarchical nanohybrid CNT@Ni-PS and its applications in enhancing the tribological,curing and thermal properties of epoxy nanocomposites显示文摘Poor interfacial adhesion and dispersity severely obstruct the continued development of carbon nanotube(CNT)-reinforced epoxy(EP)for potential applications.Herein,hierarchical CNT nanohybrids using nickel phyllosilicate(Ni-PS)as surface decorations(CNT@Ni-PS)were synthesized,and the nanocomposites derived from varied mass fractions of EP and CNT@Ni-PS were prepared.The morphological structures,tribological performances,curing behaviors and thermal properties of EP/CNT@Ni-PS nanocomposites were carefully investigated.Results show that hierarchical CNT nanohybrids with homogeneous dispersion and well-bonded interfacial adhesion in the matrix are successfully obtained,presenting significantly improved thermal and tribological properties.Moreover,analysis on cure kinetics proves the excellent promotion of CNT@Ni-PS on the non-isothermal curing process,lowering the curing energy barrier steadily. | Jinian Yang Yuxuan Xu Chang Su Shibin Nie Zhenyu Li | 2021 | Frontiers of Chemical Science and Engineering2021,15,5: | 3 |
| 13 | Deterministic secure quantum communication and authentication protocol based on three-particle W state and quantum one-time pad显示文摘Three-particle W states are used as decoy photons,and the eavesdropping detection rate reaches63%.The positions of decoy photons in information sequence are encoded with identity string ID of the legitimate users.Authentication is implemented by using previously shared identity string.State/j i is used as the carrier.One photon of/j i is sent to Bob;and Bob obtains a random key by measuring photons with bases dominated by ID.The bases information is secret to others except Alice and Bob.Both the eavesdropping detection based on three-particle W state and the secret ID ensure the security of the protocol.Unitary operations are not used. | Yan Chang Shibin Zhang Lili Yan Jian Li | 2014 | Chinese Science Bulletin2014,59,23: | 3 |
| 14 | Robust EPR-pairs-based quantum secure communication with authentication resisting collective noise显示文摘This work presents two robust quantum secure communication schemes with authentication based on Einstein-Podolsky-Rosen(EPR) pairs, which can withstand collective noises. Two users previously share an identity string representing their identities. The identity string is encoded as decoherence-free states(termed logical qubits), respectively, over the two collective noisy channels, which are used as decoy photons. By using the decoy photons, both the authentication of two users and the detection of eavesdropping were implemented. The use of logical qubits not only guaranteed the high fidelity of exchanged secret message, but also prevented the eavesdroppers to eavesdrop beneath a mask of noise. | CHANG Yan ZHANG ShiBin LI Jian YAN LiLi | 2014 | Science China(Physics,Mechanics & Astronomy)2014,57,10: | 3 |
| 15 | Mullite Coating on Recrytallized Silicon Carbide and Its Cycling Oxidation Behavior显示文摘Mullite coating on recrystallized silicon carbide was successfully prepared by the sol-gel route. The cycling oxidation of coated recrystallized silicon carbide was performed at 1500℃. For comparison, the oxidation of uncoated recrystallized silicon carbide was also carried out at the same condition. The results indicated that a layer of compact, adhesive and crack free mullite coating was found on the recrystallized silicon carbide. After oxidation, the new coatings exhibit adherence and crack resistance under thermal cycling between room temperature and 1500℃, therefore the oxidation resistance capability of silicon carbide was enhanced. With the increase of the dipping frequencies, namely, the increase of the thickness of mullite coating, the oxidation resistance of silicon carbide would be further improved. The formation mechanism of mullite coating was analyzed and discussed and the oxidation dynamics model of coated-mullite silicon carbide has been also proposed. | LI Shibin RU Hongying GAO Jiqiang JIN Zhihao | 2006 | China's Refractories2006,15,2: | 2 |
| 16 | Adjustable thermal expansion in La(Fe,Si)13-based conductive composites by high-pressure synthesis显示文摘Providing a suitable contact interface, where a high conductivity material with a desirable coefficient of thermal expansion(CTE) adjoins the target micro-electric devices, is very crucial to optimize the properties and service life of the relevant instruments. Regrettably, a high conductivity, low thermal expansion and relatively inexpensive material is very rare. Composites, fortunately, can offer a method to design materials with adjustable properties by mixing two or more diverse constituents. In this paper, high conductivity composites with adjustable thermal expansion were successfully prepared by a high-pressure synthesis. The composites are based on combining La(Fe,Si)13-based compounds, the materials showing a giant, isotropic negative thermal expansion(NTE) properties, within Cu matrix. The La(Fe,Si)13-based compounds were used to adjust the CTE of the composites, while the Cu phase is in charge of tuning the thermal conductivity properties. Thus, by changing the relative amount of the two components, the composites with high conductivities and adjustable CTE were achieved. Furthermore, the thermal expansion and magnetic properties of the composites were investigated by a physical property measurement system. The present results highlight the potential applications of the Cu-based high conductivity composites with room-temperature NTE properties in the thermal contacts to various semiconductor and microelectronic devices. | Wei Wang Rongjin Huang Yi Shan Yuqiang Zhao Xinran Shan Shibin Guo Chuanjun Huang Laifeng Li | 2019 | Progress in Natural Science:Materials International2019,29,1: | 2 |
| 17 | Comparative Study of the Disinfection Effects of Three Types of Conjunctiva Sac Irrigations显示文摘Purpose:The antiseptic effectiveness of 5% anerdian Ⅲ, 0.016% gentamicin,and 0.5% tobramycin solutions in pre-surgical irrigation of conjunctival sac were compared. Methods:A total of 295 cataract patients (302 eyes) who had undergone phacoemulsification aspiration combined with intraocular lens insertion. (IOL).were recruited in this prospective study.Operative eyes were given 0.3% levofloxacin eye drops for 3 days and then were randomized into three treatment groups:anerdian. (A), gentamicin (B) and tobramycin (C).The patients received conjunctival sac irrigation using the respective solutions at 10 minutes preoperatively.Conjunctival sac sampling was performed before and after irrigation and the samples were used for subsequent bacterial culture and swab tests. The positive culture rate was used as the main outcome. Results:The positive rates of bacterial culture before conjunctival sac irrigationwere 17.31% (18 eyes) in group A, 13.86% (14 eyes) in group B and 17.3% (14 eyes) in group C.Post irrigation,the positive rates in the three groups decreased to 5.76% . (6 eyes),5.94% . (6 eyes) and 7.22% (7 eyes), respectively. The positive rates among the three groups did not differ significantly.However,the positive rate in group A only significantly differed before and after the irrigation (P<0.05). No toxic or allergic reactions were observed on the ocular surface of any patient after irrigation. Conclusion: The antiseptic effects of the three types of con junctival sac irrigations did not differ. (Eye Science 2013; 28: 20-23) | Shibin Lin Gonghui Li Huichun Huang | 2013 | Eye Science2013,28,1: | 2 |
| 18 | Self-sacrificial templating synthesis of flower-like nickel phyllosilicates and its application as high-performance reinforcements in epoxy nanocomposites显示文摘The nanocomposites of flower-like nickel phyllosilicate particles incorporated into epoxy resin were fabricated via an in-situ mixing process.The flower-like nickel phyllosilicate particles were firstly synthesized using a mild self-sacrificial templating method,and the morphology and lamellar structure were examined carefully.Several properties of mechanical,thermal and tribological responses of epoxy nanocomposites were performed.It was demonstrated that adequate flower-like nickel phyllosilicate particles dispersed well in the matrix,and the nanocomposites displayed enhanced tensile strength and elastic modulus but decreased elongation at break as expected.In addition,friction coefficient and wear rate were increased first and then decreased along with the particle content,and showed the lowest values at a mass fraction of 5%.Nevertheless,the incorporated flower-like nickel phyllosilicate particles resulted in the continuously increasing thermal stability of epoxy resin(EP)nanocomposites.This study revealed the giant potential of flower-like particles in preparing high-quality EP nanocomposites. | Jinian Yang Xuesong Feng Shibin Nie Yuxuan Xu Zhenyu Li | 2022 | Frontiers of Chemical Science and Engineering2022,16,4: | 2 |
| 19 | Flexible optoelectronic devices based on metal halide perovskites显示文摘The unique physical and chemical properties of metal halide perovskites predestine the devices to achieve high performance in optoelectronic field.Among the numerous high qualities of perovskites,their different low-temperature synthesis methods and preparation processes make them impressive and popular materials for flexible optoelectronic devices.Mainstream perovskite devices,for instance,solar cells,photodetectors and light-emitting diodes,have been fabricated on flexible substrates and show outstanding flexibility as well as high performance.For soft wearable electronic systems,mechanical flexibility is the premier condition.Compared to common devices based on rigid substrates,flexible perovskite devices are more practical and see widespread applications in energy,detection,display,and other fields.This review summarizes the recent progress of flexible perovskite solar cells,photodetectors and light-emitting diodes.The design and fabrication of different high-performance flexible perovskite devices are introduced.Various low-dimensional perovskite materials and configurations for flexible perovskite devices are presented.In addition,the limitations and challenges for further application are also briefly discussed. | Hao Chen Hao Wang Jiang Wu Feng Wang Ting Zhang Yafei Wang Detao Liu Shibin Li Richard V.Penty Ian H.White | 2020 | Nano Research2020,13,8: | 2 |
| 20 | Micromechanics of substrate-supported thin films显示文摘The mechanical properties of metallic thin films deposited on a substrate play a crucial role in the performance of micro/nano-electromechanical systems(MEMS/NEMS)and flexible electronics. This article reviews ongoing study on the mechanics of substrate-supported thin films, with emphasis on the experimental characterization techniques,such as the rule of mixture and X-ray tensile testing. In particular, the determination of interfacial adhesion energy, film deformation, elastic properties and Bauschinger effect are discussed. | Wei He Meidong Han Shibin Wang Lin-An Li Xiuli Xue | 2018 | Acta Mechanica Sinica2018,34,2: | 2 |