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| 1 | Progress in experimental study of aqueous lubrication显示文摘Aqueous lubrication is commonly regarded as friendly to the environment.We review current knowledge of the behaviors and mechanisms of aqueous lubrication.Major methods for investigating aqueous lubrication are addressed.We describe studies on both friction and film formation performance of various water-based lubricants,Additionally,we discuss possible underlying mechanisms of aqueous lubrication.Attention is also drawn to continuing topics of investigation and some unsolved problems. | MA LiRan ZHANG ChenHui LIU ShuHai | 2012 | Chinese Science Bulletin2012，57，17： | 14 |
| 2 | A New Class of Harmonic Univalent Functions by the Generalized Salagean Operator显示文摘A complex-valued harmonic functions that are univa-lent and sense preserving in the unit disk U can be written in the form f = h + g, where h and g are analytic in U. We define and investigate a new class SHPλ (α , β )by generalized Salagean op-erator of harmonic univalent functions. We give sufficient coeffi-cient conditions for normalized harmonic functions in the class SHPλ (α , β ). These conditions are also shown to be necessary when the coefficients are negative. This leads to distortion bounds and extreme points. | LI Shuhai LIU Peide | 2007 | Wuhan University Journal of Natural Sciences2007，12，6： | 6 |
| 3 | A Fully Self-Healing Piezoelectric Nanogenerator for Self-Powered Pressure Sensing Electronic Skin显示文摘As an important way of converting mechanical energy into electric energy,a piezoelectric nanogenerator(PENG)has been widely applied in energy harvesting as well as self-powered sensors in recent years.However,its robustness and durability are still severely challenged by frequent and inevitable mechanical impacts in real application environments.Herein,a fully selfhealing PENG(FS-PENG)as a self-powered pressure sensing electronic skin is reported.The self-healing piezoelectric composite and self-healing Ag NW electrode fabricated through mixing piezoelectric PZT particles and conductive Ag NWs into self-healing polydimethylsiloxane(H-PDMS)are assembled into the sandwich structure FS-PENG.The FS-PENG could not only effectively convert external stimulation into electrical signals with a linear response to the pressure but also retain the excellent self-healing and stable sensing property after multiple cycles of cutting and self-healing process.Moreover,a self-healing pressure sensor array composed of 9 FS-PENGs was attached on the back of the human hand to mimic the human skin,and accurate monitoring of the spatial position distribution and magnitude of the pressure was successfully realized. | Maosen Yang Jinmei Liu Dong Liu Jingyi Jiao Nuanyang Cui Shuhai Liu Qi Xu Long Gu Yong Qin | 2021 | Research2021，，1： | 6 |
| 4 | Study of lubrication behavior of pure water for hydrophobic friction pair显示文摘The perfluorooctyltrichlorosilane molecular layer was self-assembled on glass plate. The tribological properties of the molecular layer in water were studied with the method of ball on disk. An interesting phenomenon was found that low friction coefficients of 0.02―0.08 were obtained when the friction pair was lubricated with only a water droplet. Whereas, when the friction pair was encircled with large amount of water or fully immersed in water, the friction coefficient was higher than that under a droplet lubrication. A mechanism of water droplet lubrication was proposed that the surface tension caused by the solid-liquid-air three-phase interface makes water molecules enter into the contact zone, which separates the two friction surfaces and provides a low friction coefficient. However, water film can hardly form when more water encircles the friction pair, due to the attraction between water molecules. | MA ZhiZuo ZHANG ChenHui LIU ShuHai LUO JianBin LU XinChun WEN ShiZhu | 2009 | Science China(Technological Sciences)2009，52，11： | 4 |
| 5 | Damages on the lubricated surfaces in bearings under the influence of weak electrical currents显示文摘A special bearing tester was constructed to investigate the damage behavior on the lubricated surfaces in bearings with the passage of weak electrical currents as low as^1 mA.The results showed that when polar glycerine was used as the lubricant,many narrow and deep pits formed on the lubricated surfaces.In contrast,when the experimental conditions under the lubrication of the nonpolar paraffin oil were close to those under the lubrication of polar glycerine oil,damages on the lubricated surfaces were unobvious.Emergence of microbubbles in polar lubricants with the passage of electrical currents was proposed to be responsible for the observed damages on the lubricated surfaces. | XIE GuoXin LUO JianBin GUO Dan LIU ShuHai LI Gang | 2013 | Science China(Technological Sciences)2013，56，12： | 4 |
| 6 | Frictional behaviors of rough soft contact on wet and dry pipeline surfaces:With application to deepwater pipelaying显示文摘Elastic rubbers are widely used in nature and engineering.In order to better understand soft rough contact under dry and wet conditions during deepwater pipelaying process,various polyurethane(PU)discs both in PU-pipe and PU-steel sliding combinations have been investigated by using self-developed tribometer.The tribological test results show that the friction coefficient can be clearly seen:PU90 | TAN GuiBin WANG DeGuo LIU ShuHai WANG Hao ZHANG SiWei | 2013 | Science China(Technological Sciences)2013，56，12： | 4 |
| 7 | Lubricating properties of oil-in-water emulsion with low oil concentration:Competitive wetting effect显示文摘Oil-in-water(O/W) emulsions are widely used in metal working such as hot rolling and cutting.Three kinds of O/W emulsions with low oil concentration were prepared which include conventional emulsion(CE),miniemulsion(MNE) and microemulsion(ME).The lubricating properties of O/W emulsions with low oil concentration were investigated using the tribological testers and the thin film interferometry based on the relative optical interference intensity method.The tribological test results under boundary lubrication show that the friction coefficient and the total losing weight can be clearly seen:CE < MNE < ME.The lubricating film thicknesses under elastohydrodynamic lubrication and thin film lubrication show that a relationship of the film formation abilities:CE > MNE > ME.Competitive wetting behavior of water and oil on solid surface was confirmed to play an important role in the film formation and tribological behaviors of O/W emulsion. | LIU ShuHai TAN GuiBin | 2013 | Science China(Technological Sciences)2013，56，2： | 4 |
| 8 | Down-regulation of heparanase leads to the inhibition of invasion and proliferation of A549 cells in vitro and in vivo显示文摘Heparanase 是降级的哺乳动物的 endoglycosidase 在房间表面并且在细胞外的矩阵的 heparan 硫酸盐。heparanase 的表示在许多人的恶意的肿瘤被检测并且仔细把侵略,转移,和 angiogenesis 与肿瘤联系了。然而, heparanase 的特定的角色和它调整非小的房间肺癌症(NSCLC ) 的恶意的潜力的机制房间仍然保持不清楚。在现在的学习, heparanase 的表示在由 antisense oligodeoxynucleotide 的 NSCLC 房间线是下面调整的。结果证明 heparanase 的下面规定导致了重要抑制侵略并且在 vitro 并且在 vivo 的 A549 房间的 proliferative 潜力。进一步的研究证明 heparanase 的下面规定显著地禁止了 A549 房间的 angiogenic 潜力,它可能是为在在 vivo 的 BALB/c 裸体老鼠的 A549 房间增长的抑制负责的机制。这些调查结果证明 heparanase 在调整 A549 房间的侵略,增长,和 angiogenesis 起必要作用。 | Zhitao Chen Liangming Zhu Xiaohua Li Hui Tian Yusong Fang Haibo Liu Shuhai Li Lin Li Weiming Yue Wenjun Li | 2013 | Acta Biochimica et Biophysica Sinica2013，45，3： | 3 |
| 9 | Linear polymer aqueous solutions in soft lubrication:From boundary to mixed lubrication显示文摘In order to better understand linear polymer aqueous solutions in soft lubrication from boundary to mixed lubrication,poly(ethylene glycol) and sodium hyaluronateare used as model polymers were investigated by using UMT-2 tribometer with the ball-on-disk mode. The relationship between the master Stribeck curves of the polymer aqueous solutions and the influence factors were investigated. Experimental results indicated that soft lubrication is determined by lubricant rheological properties and surface-lubricant interactions, e.g., wetting behavior of polymer aqueous solution on tribological surfaces. | LIU ShuHai TAN GuiBin WANG DeGuo | 2013 | Science China(Technological Sciences)2013，56，7： | 3 |
| 10 | Sliding friction of shale rock on dry quartz sand particles显示文摘The sliding friction of rock, involving all kinds of particles at the contact surface, is relevant to many problems, ranging from those in artificial engineering to earthquake dynamics. In this work, the frictional performance of the shale rock–dry quartz sand contact was investigated using a self-developed testing device. The study showed that the coefficient of friction of the contact increases with nominal stress and that the corresponding friction force increases approximately linearly with nominal stress, which is directly related to the contact stress between each single sand particle and rock shale. An overall dynamic coefficient, γ, reflecting the response of friction force to nominal stress, first decreases and then increases with area ratio, which is determined by not only the contact stress but also the interparticle friction force. These have important repercussions for a preliminary understanding of the frictional properties of the shale rock–dry quartz sand contact in hydraulic fracturing and related industrial applications. | Huijie ZHANG Shuhai LIU Huaping XIAO | 2019 | Friction2019，7，4： | 2 |
| 11 | Shear of molecular deposition films on glass substrates determined by tribometer显示文摘The ultrathin polyelectrolyte molecular deposition films and polyelectrolyte composite nanoparticles molecular deposition films were prepared using layer-by-layer molecular deposition method and in situ growth method.A micro-tribometer has been developed to measure the shear response of those ultrathin molecular deposition films.By using a smooth steel sphere in a ball-on-flat configuration,the shear force was determined for molecular deposition films on glass substrate for different layers.The results indicate that the shear behaviors of molecular deposition film were mainly determined with the contact area and film layers.Moreover,the composite molecular deposition film with nanoparticles has better shear behaviors than the polyelectrolyte molecular deposition film.The shear force of polyelectrolyte molecular deposition film is more dependent on the speed than that of composite nanoparticle molecular deposition film. | GUO YanBao WANG DeGuo LIU ShuHai ZHANG SiWei | 2011 | Science China(Technological Sciences)2011，54，4： | 2 |
| 12 | Cracking the superheavy pyrite enigma:possible roles of volatile organosulfur compound emission显示文摘The global deposition of superheavy pyrite(pyrite isotopically heavier than coeval seawater sulfate in the Neoproterozoic Era and particularly in the Cryogenian Period)defies explanation using the canonical marine sulfur cycle system.Here we report petrographic and sulfur isotopic data(δ^(34)Spy)of superheavy pyrite from the Cryogenian Datangpo Formation(660–650 Ma)in South China.Our data indicate a syndepositional/early diagenetic origin of the Datangpo superheavy pyrite,with ^(34)S-enriched H_(2)S supplied from sulfidic(H_(2)S rich)seawater.Instructed by a novel sulfur-cycling model,we propose that the emission of ^(34)S-depleted volatile organosulfur compounds(VOSC)that were generated via sulfide methylation may have contributed to the formation of ^(34)S-enriched sulfidic seawater and superheavy pyrite.The global emission of VOSC may be attributed to enhanced organic matter production after the Sturtian glaciation in the context of widespread sulfidic conditions.These findings demonstrate that VOSC cycling is an important component of the sulfur cycle in Proterozoic oceans. | Xianguo Lang Zhouqiao Zhao Haoran Ma Kangjun Huang Songzhuo Li Chuanming Zhou Shuhai Xiao Yongbo Peng Yonggang Liu Wenbo Tang Bing Shen | 2021 | National Science Review2021，8，10： | 2 |
| 13 | Large margin linear projection and face recognition显示文摘 | Song Fengxi Yang Jingyu Liu Shuhai | 2004 | Pattern Recognition2004，37，： | 1 |
| 14 | Numerical simulation of a complex moving rigid body under the impingement of a shock wave in 3D显示文摘In this paper,we take a numerical simulation of a complex moving rigid body under the impingement of a shock wave in three-dimensional space.Both compressible inviscid fluid and viscous fluid are considered with suitable boundary conditions.We develop a high order numerical boundary treatment for the complex moving geometries based on finite difference methods on fixed Cartesian meshes.The method is an extension of the inverse Lax-Wendroff(ILW)procedure in our works(Cheng et al.,Appl Math Mech(Engl Ed)42:841-854,2021;Liu et al.)for 2D problems.Different from the 2D case,the local coordinate rotation in 3D required in the ILW procedure is not unique.We give a theoretical analysis to show that the boundary treatment is independent of the choice of the rotation,ensuring the method is feasible and valid.Both translation and rotation of the body are taken into account in this paper.In particular,we reformulate the material derivative for inviscid fluid on the moving boundary with no-penetration condition,which plays a key role in the proposed algorithm.Numerical simulations on the cylinder and sphere are given,demonstrating the good performance of our numerical boundary treatments. | Shihao Liu Ziqiang Cheng Yan Jiang Jianfang Lu Mengping Zhang Shuhai Zhang | 2022 | Advances in Aerodynamics2022，4，1： | 1 |
| 15 | Adsorption of Pb and Cd on the natural surface coatings (NSCs) in the presence of organochlorine pesticides: A preliminary investigation显示文摘 | Guo Shuhai Li Yu Liu hang Hua Xiuyi | 2008 | Journal of Environmental Management2008，88，： | 1 |
| 16 | A high order boundary scheme to simulate complex moving rigid body under impingement of shock wave显示文摘In the paper, we study a high order numerical boundary scheme for solving the complex moving boundary problem on a fixed Cartesian mesh, and numerically investigate the moving rigid body with the complex boundary under the impingement of an inviscid shock wave. Based on the high order inverse Lax-Wendroff(ILW) procedure developed in the previous work(TAN, S. and SHU, C. W. A high order moving boundary treatment for compressible inviscid flows. Journal of Computational Physics, 230(15),6023–6036(2011)), in which the authors only considered the translation of the rigid body,we consider both translation and rotation of the body in this paper. In particular, we reformulate the material derivative on the moving boundary with no-penetration condition, and the newly obtained formula plays a key role in the proposed algorithm. Several numerical examples, including cylinder, elliptic cylinder, and NACA0012 airfoil, are given to indicate the effectiveness and robustness of the present method. | Ziqiang CHENG Shibao LIU Yan JIANG Jianfang LU Mengping ZHANG Shuhai ZHANG | 2021 | Applied Mathematics and Mechanics(English Edition)2021，42，6： | 1 |
| 17 | Excitation of dielectric barrier dischar- ges by unipolar submieroseeond square pulses显示文摘 | Liu Shuhai Neiger M | 2001 | Journal of Physics D: Applied Physics2001，34，11： | 1 |
| 18 | Lubricating Properties of Organic Phosphate Ester Aqueous Solutions显示文摘 | Shuhai Liu Dan Guo Gang Li Hong Lei | 2010 | Tribology Letters2010，，3： | 1 |
| 19 | SHRIMP zircon U–Pb age constraints on Neoproterozoic Quruqtagh diamictites in NW China显示文摘 | Bei Xu Shuhai Xiao Haibo Zou Yan Chen Zheng-Xiang Li Biao Song Dunyi Liu Chuanming Zhou Xunlai Yuan | 2008 | Precambrian Research2008，，3： | 1 |
| 20 | Deciphering glial scar after spinal cord injury显示文摘Spinal cord injury(SCI)often leads to permanent disability,which is mainly caused by the loss of functional recovery.In this review,we aimed to investigate why the healing process is interrupted.One of the reasons for this interruption is the formation of a glial scar around the severely damaged tissue,which is usually covered by reactive glia,macrophages and fibroblasts.Aiming to clarify this issue,we summarize the latest research findings pertaining to scar formation,tissue repair,and the divergent roles of blood-derived monocytes/macrophages,ependymal cells,fibroblasts,microglia,oligodendrocyte progenitor cells(OPCs),neuron-glial antigen 2(NG2)and astrocytes during the process of scar formation,and further analyse the contribution of these cells to scar formation.In addition,we recapitulate the development of therapeutic treatments targeting glial scar components.Altogether,we aim to present a comprehensive decoding of the glial scar and explore potential therapeutic strategies for improving functional recovery after SCI. | Yu Zhang Shuhai Yang Chang Liu Xiaoxiao Han Xiaosong Gu Songlin Zhou | 2021 | Burns & Trauma2021，9，1： | 1 |
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