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Wear Mechanism of WC-Co Cemented Carbide Tool in Cutting Ti-6Al-4V Based on Thermodynamics

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Journal of Wuhan University of Technology(Materials Science) 2020年第5期35卷 973-979页

作者： HU Xiaolong shao fang WANG Renwei Guizhou Institute o f Technology Guiyang 550003China School o f Mechanical Engineering Guizhou UniversityGuiyang 550025China School o f Mechanical Engineering Shandong UniversityJinan 250100China

In order to optimize the tool coating material and reduce the tool wear rate,the coating material and wear mechanism for carbide tools are proposed and analyzed based on thermodynamics *** deduced the Gibbs free energy function method and analyzed the enthalpy value of the coating material of cemented carbide *** rules of diffusion wear and oxidation wear for WC-Co-based carbide tools were analyzed based on the diffusion dissolution theory and the calculation method of the thermal effect of chemical *** diffusion wear and oxidation wear of WC-Co-based carbide tools when machining Ti-6Al-4V were studied with *** results indicate that a good prediction accuracy of both diffusion wear and oxidation wear can be achieved by the method of thermodynamic theory analysis *** conclusion will provide useful references for the optimization of cutting parameters and the improvement of the tool life.

关键词： cemented carbide thermodynamics titanium alloy wear mechanism

Relationship between arterial atheromatous plaque morphology and platelet-associated miR-126 and miR-223 expressions

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Asian Pacific Journal of Tropical Medicine 2015年第4期8卷 309-314页

作者： Heng-Song Tian Qing-Guo Zhou fang shao Department of Cardiology Affiliated Hospital of Xinxiang Medical College Ping Mei Shenma Medical Group General Hospital

Objective:To study the expression of miR-126 and miR-223 in platelet of rabbit arterial plaque models,and explore its correlation with plaque ***:Rabbit arterial plaque models were established,peripheral blood of models and control animals was *** morphologies were divided into typeⅠ.typeⅡand typeⅢbased on angiography plaque morphology and Ambrose *** isolation kit was applied to isolate and purify peripheral blood platelets,CD45 immunomagnetic beads were used to remove the residual white blood *** miRNAs of platelets was extracted by miRNA Isolation Kit,and expressions of miR-126 and miR-223 of the platelets samples were detected by Real-time *** correlation between plaque morphology and platelet-associated miR-126 and miR-223 expressions were *** of target gene VCAM-1 and P2Y12 receptors of miR-126 and miR-223 in the atherosclerosis plaque of rabbit model were detected by Western ***:Relative expression levels of miR-126 and miR-223 in the model group were 0.27±0.10 and 0.71±0.14,*** morphology was divided into typesⅠ,ⅡandⅢ;and miR-126 and miR-223 expression levels were detected in each *** levels of miR-126 in each type were 0.42±0.07,0.17±0.11 and 0.22±0.15,respectively;and expression levels of miR-223 in each type are 0.68±0.02,0.57±0.06 and 0.88±*** to the control group,miR-126 and miR-223 known target genes in VCAM-1 and P2Y12receptors increased platelets in rabbit atherosclerotic plaque models(P<0.05).Conclusions:Relative to normal control animals,miR-126 and miR-223 platelets were reduced in the rabbit atherosclerotic plaque model group(P<0.05).In the typeⅡplaque morphology group,miR-126 was greatly reduced;and there is no significant correlation between miR-223 and plaque morphology.

关键词： Platelets miR-126 miR-223 Coronary heart disease Atherosclerotic plaque

Fat necrosis of liver in a patient with mixed type liver cirrhosis

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Hepatobiliary & Pancreatic Diseases International 2024年第5期23卷 535-537页

作者： Li-fang shao Xiao-Min Shen Wei Yu Department of Nursing the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China State Key Laboratory for Diagnosis and Treatment of Infectious Diseases National Clinical Research Center for Infectious DiseasesCollaborative Innovation Center for Diagnosis and Treatment of Infectious Diseasesthe First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China

To the Editor: Fatty liver diseases, including nonalcoholic fatty liver disease and alcohol related fatty liver disease, have become a major public health concern [ 1, 2 ]. Fatty liver diseases have been shown to progress through various stages, from steatosis or necrosis with inflammation and hepatocyte damage to the development of fibrosis and eventual cirrhosis with an increased risk of carcinoma [ 2, 3 ].

关键词： cirrhosis diseases liver

Activity and Enantioselectivity of Lipase Immobilized in CTAB Microemulsion-based Gels

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Chemical Research in Chinese Universities 2007年第6期23卷 749-752页

作者： SONG shao-fang LUAN Yu-xia LU Fu-sui College of Chemistry and Material Science Shandong Agricultural University Taian 271018 P. R. China Institute of Pharmaceutics School of Pharmaceutical Science Shandong University Jinan 250100 P. R. China

Introduction The formation of gelatin-containing mieroemulsionbased gels（MBGs） was first described in 1986 and the physical/structural characterization was carried out by a number of groups with a variety of techniques including tracer diffusion, electrical conductivity, NMR, X-ray and small angle neutron scattering. The MBGs were proposed to comprise an extensive, rigid, interconnected network of gelatin/water rods stabilized by a monolayer of surfactant, in coexistence with a po- pulation of conventional W/O microemulsion droplets.

关键词： Microemulsion-based gels Immobilized lipase Racemic ibuprofen Enantioselectivity Enantiomerie excess

Distributed Field Rotator Composed of Isolated Components

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Chinese Physics Letters 2014年第4期31卷 50-53页

作者： LIU Guo-Chang LI Chao shao Jin-Jin fang Guang-You Key Laboratory of Electromagnetic Radiation and Sensing Technology Chinese Academy of Sciences Beijing 100190

Transformation optics offers remarkable control over electromagnetic fields and has recently opened an exciting gateway to design ＇field rotator devices＇. We propose a distributed field rotator with open windows based on composite transformation optics, which consists of a central circular region and several isolated components. The number, position and size of the components can be controlled freely by the design purpose. Full-wave simulations are performed to demonstrate its function, which is equivalent to a classic field rotator. However, such a distributed rotator makes it much easier to access and make use of the rotated field in the central region, compared to the closed classic field rotator, especially in the case of 3D situations.

关键词： ELECTROMAGNETIC fields DIELECTRICS FREE-space optical technology JACOBIAN matrices ELECTROMAGNETISM

Action Control of Soccer Robots Based on Simulated Human Intelligence

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International Journal of Automation and computing 2010年第1期7卷 55-63页

作者： Tie-Jun Li Gui-Qiang Chen Gui-fang shao Department of Information Engineering Jimei University Xiamen 361021 PRC Institute of Command Automation Chongqing Communication College Chongqing 400035 PRC Department of Automation Xiamen University Xiamen 361005 PRC

A multi-modal action control approach is proposed for an autonomous soccer robot when the bottom hardware is unchangeable. Different from existing methods, the proposed control approach defines actions with the principle of ＂perception-planning-action＂ inspired by human intelligence. Character extraction is used to divide the perception input into different modes. Different control modes are built by combining different control methods for the linear velocity and angular velocity. Based on production rules, the motion control is realized by connecting different perceptions to the corresponding control mode. Simulation and real experiments are conducted with the middle-sized robot Frontier-I, and the proposed method is compared with a proportional-integral-derivative （PID） control method to display its feasibility and performance. The results show that the multi-modal action control method can make robots react rapidly in a dynamic environment.

关键词： Intelligent control artificial intelligence PID control perception action control robots

Entanglement of Non-symmetric Two Atomic Qubits Induced by a Coherent State Field

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Communications in Theoretical Physics 2006年第1期45卷 67-70页

作者： LI Jun-Gang ZOU Jian CAI Jin-fang shao Bin Department of Physics School of Science Beijing Institute of Technology Beijing 100081 China

The entanglement of two atomic qubits, which are coupled to a coherent state field with different couplings, is studied. The dynamical evolution of the concurrence, which measures the degree of the entanglement between the two qubits, is plotted versus the scaled time gt. It is found that the two qubits can be entangled by the coherent state field even when they are initially prepared in the most mixed state, and for very weak field, the most mixed state can be; more easily entangled than some pure states. It is also found that the entanglement between the qubits sensitively depends on the relative difference of the atomic couplings and the mean photon number of the field.

关键词： entanglement mixed state coherent state field

Implicit integration factor method for the nonlinear Dirac equation

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International Journal of Modeling, Simulation, and Scientific Computing 2018年第2期9卷 172-185页

作者： Jing-Jing Zhang Xiang-Gui Li Jing-fang shao School of Applied Science Beijing Information Science and Technology UniversityBeijing 100192P.R.China

A high-order accuracy time discretization method is developed in this paper to solve the one-dimensional nonlinear Dirac(NLD)*** on the implicit integration factor(IIF)method,two schemes are *** differences are applied to the spatial *** semi-discrete scheme keeps the conservation of the charge and *** the temporal discretization,second-order IIF method and fourth-order IIF method are applied respectively to the nonlinear system arising from the spatial *** experiments are given to validate the accuracy of these schemes and to discuss the interaction dynamics of the NLD solitary waves.

关键词： Nonlinear Dirac equation conservation implicit integration factor method interaction dynamics.

The Representations of Generalized Inverses of Lower Triangular Operators

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Acta Mathematica Sinica,English Series 2009年第12期25卷 2107-2118页

作者： Chun fang shao Hong Ke DU Shu Feng JI Jun Lian XU College of Mathematics and Information Science Shaanxi Normal University Xi'an 710062 P. R. China Department of Mathematics Ankang University Ankang 725000 P. R. China

In this note, the explicit representations of Moore-Penrose inverses of lower triangular operator matrices are established. As an application, the explicit representations of Bott-Duffin inverses of bounded linear ope... 详细信息

关键词： Moore-Penrose inverse lower triangular operator matrix Bott-Duffin inverse