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| 1 | From Flysch to Molasse—Sedimentary and Tectonic Evolution of Late Caledonian -Early Hercynian Foreland Basin in North Qilian Mountains显示文摘The Late Caledonian to Early Hercynian North Qilian orogenic belt in no rthwestern China is an elongate tectonic unit situated between the North China p late in the north and the Qaidam plate in the south. North Qilian started in the latest Proterozoic to Cambrian as a rift basin on the southern margin of North China, and evolved later to an archipelagic ocean and active continental margin during the Ordovician and a foreland basin from Silurian to the Early and Middle Devonian. The Early Silurian flysch and submarine alluvial fan, the Middle to L ate Silurian shallow marine to tidal flat deposits and the Early and Middle Devo nian terrestrial molasse are developed along the corridor Nanshan. The shallowin g upward succession from subabyssal flysch, shallow marine, tidal flat to terre strial molasse and its gradually narrowed regional distribution demonstrate that the foreland basin experienced the transition from flysch stage to molasse stag e during the Silurian and Devonian time. | DuYuansheng WangJiasheng HanXin ShiGR | 2003 | Journal of China University of Geosciences2003，14，1： | 11 |
| 2 | Gas-kinetic numerical method for solving mesoscopic velocity distribution function equation显示文摘A gas-kinetic numerical method for directlysolving the mesoscopic velocity distribution functionequation is presented and applied to the study ofthree-dimensional complex flows and micro-channelflows covering various flow regimes.The unified velo-city distribution function equation describing gas trans-port phenomena from rarefied transition to continuumflow regimes can be presented on the basis of the kineticBoltzmann-Shakhov model equation.The gas-kineticfinite-difference schemes for the velocity distributionfunction are constructed by developing a discrete velo-city ordinate method of gas kinetic theory and an uns-teady time-splitting technique from computational fluiddynamics.Gas-kinetic boundary conditions and nume-rical modeling can be established by directly manipu-lating on the mesoscopic velocity distribution function.A new Gauss-type discrete velocity numerical integra-tion method can be developed and adopted to attackcomplex flows with different Mach numbers.HPF paral-lel strategy suitable for the gas-kinetic numerical methodis investigated and adopted to solve three-dimensionalcomplex problems.High Mach number flows aroundthree-dimensional bodies are computed preliminarily with massive scale parallel.It is noteworthy and ofpractical importance that the HPF parallel algorithmfor solving three-dimensional complex problems canbe effectively developed to cover various flow regimes.On the other hand,the gas-kinetic numerical methodis extended and used to study micro-channel gas flowsincluding the classical Couette flow,the Poiseuille-channel flow and pressure-driven gas flows in two-dimensional short micro-channels.The numericalexperience shows that the gas-kinetic algorithm may bea powerful tool in the numerical simulation of micro-scale gas flows occuring in the Micro-Electro-MechanicalSystem (MEMS). | Zhihui Li Hanxin Zhang | 2007 | Acta Mechanica Sinica2007，23，2： | 8 |
| 3 | High-Order and High Accurate CFD Methods and Their Applications for Complex Grid Problems显示文摘The purpose of this article is to summarize our recent progress in high-order and high accurate CFD methods for flow problems with complex grids as well as to discuss the engineering prospects in using these methods.Despite the rapid development of high-order algorithms in CFD,the applications of high-order and high accurate methods on complex configurations are still limited.One of the main reasons which hinder the widely applications of thesemethods is the complexity of grids.Many aspects which can be neglected for low-order schemes must be treated carefully for high-order ones when the configurations are complex.In order to implement highorder finite difference schemes on complex multi-block grids,the geometric conservation lawand block-interface conditions are discussed.A conservativemetricmethod is applied to calculate the grid derivatives,and a characteristic-based interface condition is employed to fulfil high-order multi-block computing.The fifth-order WCNS-E-5 proposed by Deng[9,10]is applied to simulate flows with complex grids,including a double-delta wing,a transonic airplane configuration,and a hypersonic X-38 configuration.The results in this paper and the references show pleasant prospects in engineering-oriented applications of high-order schemes. | Xiaogang Deng Meiliang Mao Guohua Tu Hanxin Zhang Yifeng Zhang | 2012 | Communications in Computational Physics2012，11，4： | 6 |
| 4 | Detached-eddy simulations and analyses on new vortical flows over a 76/40° double delta wing显示文摘Numerical simulations were performed on the massively separated flows of a 76/40° double delta wing using detached-eddy simulation(DES).A new type of cross-flow vortex is suggested.A vortex was initially generated near the junction of the strake and wing,which then moved towards the wing tip at certain wavelength and speed.Analyses were made in detail on the mechanism of the generation of the cross-flow vortex,that is,the inviscid cross-flow instability which differs from that of the swept blunt wing.Cross-section topology of the cross-flow vortex is also investigated,and the wavelength of the vortex array and the characteristic frequency are given.The analyses showed that the cross-flow vortices have an influence on the pressure distribution,which can cause a 10%-20% deviation from the averaged distribution. | LI Qin SUN Dong ZHANG HanXin | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，6： | 5 |
| 5 | Effects of information feedback on an asymmetrical two-route scenario显示文摘In traffic system, a reasonable information feedback can improve road capacity. In this paper, we investigate an asymmetrical two-route scenario in which dynamic information can be generated and displayed on the board to guide drivers. Two improved feedbacks (i.e. improved mean velocity feedback and improved congestion coefficient feedback) are introduced. Simulations show that the average cost is dependent on the vehicle arrival rate and there exists a critical the dynamic vehicles ratio corresponding to the maximum flux. We find that improved con-gestion coefficient can better enhance the system capacity than that of improved mean velocity feedback. | SUN XiaoYan WANG BingHong YANG HanXin WANG QiaoMing JIANG Rui | 2009 | Chinese Science Bulletin2009，54，18： | 4 |
| 6 | Influence of Calcination on the Physical Characteristics and Nitrogen Removal Performance of Clinoptilolites显示文摘The influences of roasting activation on the particle morphology, microscopic structure, and adsorption properties of natural clinoptilolites were investigated. The experimental results show that the optimal modified conditions include a calcination temperature at 400 ℃, a roasting time of 0.5 h, and furnace cooling. The ammonia nitrogen removal rate from analog renewable water of the modified clinoptilolites reached 72% in the optimized conditions, which is 12% higher than that of natural ones. Scanning electron microscopy analysis showed that the surface morphology changed, the micro-hole size increased, and the surface became smoother and more uniform after calcination. The single-point total adsorption average pore width increased from 7.74 nm to 10.64 nm. | 林海 JIN Xin 董颖博 HUO Hanxin LIU Quanli | 2014 | Journal of Wuhan University of Technology(Materials Science)2014，29，6： | 3 |
| 7 | Efficacy and safety of high-dose esomeprazole–amoxicillin dual therapy for Helicobacter pylori rescue treatment:a multicenter,prospective,randomized,controlled trial显示文摘Background:High-dose dual therapy(HDDT)with proton pump inhibitors(PPIs)and amoxicillin has attracted widespread attention due to its favorable efficacy in eradicating Helicobacter pylori(H.pylori).This study aimed to compare the efficacy and safety of high-dose PPI-amoxicillin dual therapy and bismuth-containing quadruple therapy for H.pylori rescue treatment.Methods:This was a prospective,randomized,multicenter,non-inferiority trial.Patients recruited from eight centers who had failed previous treatment were randomly(1:1)allocated to two eradication groups:HDDT(esomeprazole 40 mg and amoxicillin 1000 mg three times daily;theHDDTgroup)and bismuth-containing quadruple therapy(esomeprazole 40 mg,bismuth potassium citrate 220 mg,and furazolidone 100 mg twice daily,combined with tetracycline 500 mg three times daily;the tetracycline,furazolidone,esomeprazole,and bismuth[TFEB]group)for 14 days.The primary endpoint was the H.pylori eradication rate.The secondary endpoints were adverse effects,symptom improvement rates,and patient compliance.Results:A total of 658 patients who met the criteria were enrolled in this study.The HDDT group achieved eradication rates of 75.4%(248/329),81.0%(248/306),and 81.3%(248/305)asdetermined by the intention-to-treat(ITT),modified intention-totreat(MITT),and per-protocol(PP)analyses,respectively.The eradication rates were similar to those in the TFEB group:78.1%(257/329),84.2%(257/305),and 85.1%(257/302).The lower 95%confidence interval boundary(9.19%in the ITT analysis,9.21%in the MITT analysis,and9.73%in the PP analysis)was greater than the predefined non-inferiority margin of10%,establishing a non-inferiority of the HDDT group vs.the TFEB group.The incidence of adverse events in the HDDT group was significantly lower than that in the TFEB group(11.1%vs.26.8%,P<0.001).Symptom improvement rates and patients’compliance were similar between the two groups.Conclusions:Fourteen-day HDDT is non-inferior to bismuth-containing quadruple therapy,with fewer adverse effects and good treatment compliance,suggesting HDDT as an alternative for H.pylori rescue treatment in the local region.Trial registration:Clinicaltrials.gov,NCT04678492. | Hanxin Bi Xingxing Chen Yuxin Chen Xin Zhao Shasha Wang Jiehong Wang Ting Lyu Shuang Han Tao Lin Mingquan Li Donghong Yuan Junye Liu Yongquan Shi | 2022 | Chinese Medical Journal2022，，14： | 3 |
| 8 | A class of fully third-order accurate projection methods for solving the incompressible Navier-Stokes equations显示文摘In this paper, a fully third-order accurate projection method for solving the incompressible Navier-Stokes equations is proposed. To construct the scheme, a continuous projection procedure is firstly presented. We then derive a sufficient condition for the continuous projection equations to be temporally third-order accurate approximations of the original Navier-Stokes equations by means of the localtruncation-error-analysis technique. The continuous projection equations are discretized temporally and spatially to third-order accuracy on the staggered grids, resulting in a fully third-order discrete projection scheme. The possibility to design higher-order projection methods is thus demonstrated in the present paper. A heuristic stability analysis is performed on this projection method showing the probability of its being stable. The stability of the present scheme is further verified through numerical tests. The third-order accuracy of the present projection method is validated by several numerical test cases. | Yuxin Ren Yuxi Jiang Miao'er Liu Hanxin Zhang | 2005 | Acta Mechanica Sinica2005，21，6： | 2 |
| 9 | 超声速边界层内小激波的数值模拟(英文)显示文摘本文通过有限差分计算求解了NS方程,对超声速二维平板边界层的非线性稳定性问题进行了模拟。流场的来流马赫数为4.5。平板从尖前缘开始,流场在前缘处产生一道前缘激波。数值计算模拟了边界层对成倍频关系的双频扰动波的吸收问题。通过计算发现,在一定频率下边界层内可出现小激波。计算给出了小激波的发展过程。 | Shen Qing Zhang Hanxin Yuan Xiangjiang (China Aerodynamics Research and Development Center,Sichuan Mianyang 621000) | 2000 | 空气动力学学报2000，18，z1： | 2 |
| 10 | Universal role of migration in the evolution of cooperation显示文摘We study the role of unbiased migration in cooperation in the framework of the spatial evolutionary game on a variety of spatial structures, namely a regular lattice, continuous plane and complex networks. A striking finding is that migration plays a universal role in cooperation, regardless of the spatial structure. For a high degree of migration, cooperators cannot survive owing to their failure to form cooperator clusters that resist attacks by defectors. Meanwhile, for a low degree of migration, cooperation is considerably enhanced relative to that in the static spatial game, which is due to the strengthening of the boundaries of cooperator clusters by the occasional accumulation of cooperators along the boundaries. The cooperator cluster thus becomes more robust than that in the static game and defectors near the boundary can be assimilated by cooperators. The cooperator cluster thus expands, which facilitates cooperation. The general role of migration will be substantiated by sufficient simulations relating to heuristic explanations. | YANG HanXin WANG BingHong | 2011 | Chinese Science Bulletin2011，56，34： | 2 |
| 11 | A Lagrangian criterion of unsteady flow separation for two-dimensional periodic flows显示文摘The present paper proposes a Lagrangian criterion of unsteady flow separation for two-dimensional periodic flows based on the principle of weighted averaging zero skin-friction given by Haller(HALLER, G. Exact theory of unsteady separation for two-dimensional flows. Journal of Fluid Mechanics, 512, 257–311(2004)). By analyzing the distribution of the finite-time Lyapunov exponent(FTLE) along the no-slip wall, it can be found that the periodic separation takes place at the point of the zero FTLE.This new criterion is verified with an analytical solution of the separation bubble and a numerical simulation of lid-driven cavity flows. | Shuaibin HAN Shuhai ZHANG Hanxin ZHANG | 2018 | Applied Mathematics and Mechanics(English Edition)2018，39，7： | 2 |
| 12 | Reversible fluorescent probes for chemical and biological redox process显示文摘Oxidation and reduction are important chemical and biological processes. The redox state is related with physical functions and health. Thus, it is meaningful to develop tools for study the redox process.Fluorescence is a powerful method to connecting the microcosm and macrocosm. In this review, we discuss the recent progress of reversible fluorescent probes for chemical and biological redox process according to different active centers. | Biao Li Zhaoshuai He Hanxin Zhou Han Zhang Tanyu Cheng | 2017 | Chinese Chemical Letters2017，28，10： | 1 |
| 13 | Ammonia-nitrogen and phosphates sorption from simulated reclaimed waters by modified clinoptilolite显示文摘 | Hanxin Huo Hai Lin Yingbo Dong Huang Cheng Han Wang Lixia Cao | 2012 | Journal of Hazardous Materials2012，，： | 1 |
| 14 | NND schemes and their application to numerical simulation of two and three dimensional flows显示文摘 | Zhang Hanxin Zhuang Fenggan | 1992 | Advances in Applied Mechanics1992，29，： | 1 |
| 15 | Colonization of Penicillium oxalicum SL2 in Pb-contaminated paddy soil and its immobilization effect on soil Pb显示文摘Penicillium oxalicum SL2(SL2) is a previously screened Pb-tolerant fungus that can promote crops growth. The relationship between SL2 colonization and Pb immobilization was studied to provide a theoretical basis for microbial remediation of Pb-contaminated paddy soil.In this study, green fluorescent protein(GFP) labeled SL2 was inoculated into different Pbcontaminated paddy soils(S1-S6). The Pb extracted from the soil by HNO, EDTA and CaClwere used to characterize the available Pb. The results showed that the colonization of SL2was divided into lag phase(0-7 days), growth phase(7-30 days), and mortality phase(30-90days). SL2 colonized well in sandy soils rich in clay and total phosphorus with initial p H of 4.5-7.0. In addition, SL2 increased soil p H and decreased soil Eh, which was beneficial to immobilize Pb. In different soils, the highest percentages of CaCl-Pb, EDTA-Pb, and HNO3-Pb immobilized by SL2 were 34.34%-40.53%, 17.05%-20.11%, and 7.39%-15.62%, respectively.Pearson correlation analysis showed that the percentages of CaCl-Pb and EDTA-Pb immobilized by SL2 were significantly positively correlated with the number of SL2 during the growth phase. SL2 mainly immobilized Pb in the growth phase and a higher peak number of SL2 was beneficial to the immobilization of Pb. | Yu Gao Xiaohan Jiang Hanxin Wu Jianhao Tong Xinyue Ren Jiayu Ren Qianhua Wu Jien Ye Chunhui Li Jiyan Shi | 2022 | Journal of Environmental Sciences2022，34，10： | 1 |
| 16 | Asymmetric negotiation in structured language games显示文摘 | Yang Hanxin Wang Wenxu Wang Binghong | 2008 | Phys Rev E2008，77，02： | 1 |
| 17 | Non-oscillatory,containing no free parameters and dissipative scheme显示文摘 | Zhang Hanxin | 1988 | Acta Aerodynamic Sinica1988，6，2： | 1 |
| 18 | Numerical investigation from rarefied flow to continuum by solving the Boltzmann0 model equation 显示文摘 | LI ZHIHUI ZHANG HANXIN | 2003 | International Journal for Numerical Methods in Fluids2003，42，： | 1 |
| 19 | Numerical study on the gas-kinetic high-order schemes for solving Boltzmann model equation显示文摘The high-order compact finite difference technique is introduced to solve the Boltzmann model equation, and the gas-kinetic high-order schemes are developed to simulate the different kinetic model equations such as the BGK model, the Shakhov model and the Ellipsoidal Statistical (ES) model in this paper. The methods are tested for the one-dimensional unsteady shock-tube problems with various Knudsen numbers, the inner flows of normal shock wave for different Mach numbers, and the two-dimensional flows past a circular cylinder and a NACA 002 airfoil to verify the reliability of the present high-order algorithm and simulate gas transport phenomena covering various flow regimes. The computed results are found in good agreement both with the theoretical prediction from continuum to rarefied gas dynamics, the related DSMC solutions, and with the experimental results. The numerical effect of the schemes with the different precision and the different types of Boltzmann collision models on the computational efficiency and computed results is investigated and analyzed. The numerical experience indicates that an approach developing and applying the gas-kinetic high-order algorithm is feasible for directly solving the Boltzmann model equation. | LI ZhiHui PENG AoPing ZHANG HanXin DENG XiaoGang | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，9： | 1 |
| 20 | NND schemes and their applications to numerical simulation of two-and three-dimensional flows 显示文摘 | ZHANG HANXIN ZHUANG FENGGAN | 1992 | Advances Applied Mechanics1992，29，： | 1 |
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