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现代生物医学进展 2017年第11期17卷 2064-2067页

作者：付大鹏覃开蓉廉皓屹杨圣芦健民赵德伟大连理工大学生物医学工程系辽宁大连116001 大连大学附属中山医院骨科辽宁大连116001

目的:探讨骨保护素对激素性股骨头坏死患者功能恢复及血清抗酒石酸酸性磷酸酶(TRAP)和Ⅱ型胶原羧基端端肽(CTX-Ⅱ)水平的影响。方法:选取2014年1月~2016年6月我院骨科收治的130例激素性股骨头坏死患者作为研究对象,采取随机数字表将其... 详细信息

目的:探讨骨保护素对激素性股骨头坏死患者功能恢复及血清抗酒石酸酸性磷酸酶(TRAP)和Ⅱ型胶原羧基端端肽(CTX-Ⅱ)水平的影响。方法:选取2014年1月~2016年6月我院骨科收治的130例激素性股骨头坏死患者作为研究对象,采取随机数字表将其分成两组,每组65例。两组患者均给平卧床、患肢持续皮牵引治疗,观察组在此基础上联合使用骨保护素治疗,比较两组临床疗效、功能恢复情况以及治疗前后骨密度、血清TRAP与CTX-Ⅱ水平。结果:观察组治疗优良率为90.77%,相对于对照组的72.31%明显上升(P0.05)。两组治疗后血清TRAP与CTX-Ⅱ水平均较治疗前显著下降(P<0.01),但观察组下降更为明显(P<0.01)。结论:骨保护素治疗激素性股骨头坏死可有效抑制骨吸收、增强骨密度、改善患髋关节功能。

关键词：骨保护素激素性股骨头坏死髋关节功能抗酒石酸酸性磷酸酶 Ⅱ型胶原羧基端端肽

Symmetry energy of strange quark matter and tidal deformability of strange quark stars

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Nuclear Science and Techniques 2022年第11期33卷 89-100页

作者： jian-Feng Xu Cheng-Jun Xia Zhen-Yan lu Guang-Xiong Peng Ya-Peng zhao College of Information Engineering Suqian UniversitySuqian 223800China School of Physics and Electrical Engineering AnYang Normal UniversityAnyang 455000China Center for Gravitation and Cosmology College of Physical Science and TechnologyYangzhou UniversityYangzhou 225009China Hunan Provincial Key Laboratory of Intelligent Sensors and Advanced Sensor Materials School of Physics and ElectronicsHunan University of Science and TechnologyXiangtan 411201China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Institute of High-Energy Physics Chinese Academy of SciencesBeijing 100049China School of Mathematics and Physics Henan Urban Construction UniversityPingdingshan 467036China

Research performed during the past decade revealed an important role of symmetry energy in the equation of state(EOS)of strange quark matter(SQM).By introducing an isospin-dependent term into the quark mass scaling,the SQM stability window in the equivparticle model was *** results show that a sufficiently strong isospin dependence C_(I)can significantly widen the SQM region of absolute stability,yielding results that simultaneously satisfy the constraints of the astrophysical observations of PSR J1614-2230 with 1.928±0.017 Mand tidal deformability 70≤Λ_(1:4)≤580 measured in the event *** increasing C_(I),the difference between the u,d,and s quark fractions for the SQM inβ-equilibrium becomes inconspicuous for C>0,leading to small isospin asymmetryδ,and further resulting in similar EOS and structures of strange quark stars(SQSs).Moreover,unlike the behavior of the maximum mass of ud QSs,which varies with C_(I)depending on the sign of the parameter C,the maximum mass of the SQSs decreases monotonously with increasing CI.

关键词： Symmetry energy Strange quark matter Strange stars Tidal deformability

Multidimensional Multiplicative Large Sets in Totally Minimal Systems

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Acta Mathematica Sinica,English Series 2023年第8期39卷 1635-1649页

作者： jian Jie zhao School of Mathematics Hangzhou Normal UniversityHangzhou 311121P.R.China

In this paper,it is shown that for a residual set of points in a totally minimal system with finitely many commuting homeomorphisms,the set of return times to any non-empty open set contains a subset with positive multidimensional multiplicative upper Banach density,extending a previous result by Glasscock,Koutsogiannis and ***,we give some combinatorial properties of the sets with positive multidimensional multiplicative upper Banach density.

关键词： Multidimensional multiplicative upper Banach density totally minimal systems

Design of bionic locust mouthparts stubble cutting device

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International Journal of Agricultural and Biological Engineering 2020年第1期13卷 20-28页

作者： Jiale zhao Mingzhuo Guo Yun lu Dongyan Huang jian Zhuang College of Biological and Agricultural Engineering Jilin UniversityChangchun 130022China The Key Laboratory of Bionic Engineering Ministry of EducationJilin UniversityChangchun 130022China

Given the technical problems of low maize stubble breaking efficiency,large cutting torque and high power consumption faced during springtime no-till planting in Northeast China,we designed a high-performance coupling bionic stubble cutting device capable by integrating the structure(multi-segment and serrate)and cutting mode(isokinetic and symmetrical)of locust *** of bionic construction,mechanism design,theoretical analysis,parameter optimization,Arduino systems and intelligent control were combined to design a planetary gear mechanism and an intelligent speed control *** particular,the bionic cutting blade could reconstruct the multi-segment and serrate structure of locust mouthparts,while the planetary gear mechanism and the intelligent speed control system jointly comprised the bionic drive system,which could simulate the isokinetic and symmetrical cutting mode,thereby bionically coupling morphological structures and movement *** of comparative tests showed the coupling bionic cutting device could reduce the cutting torque by 26.6%-31.6%and the power consumption by 21.9%-26.1%.This work confirmed that coupling bionic method can significantly improve the stubble cutting efficiency,which was a valuable contribution to the design of stubble cutting device for no-till planter.

关键词： bionics locust mouthparts cutting device corn stubble

Comprehensive Approach to Assessment of Liver Viability During Normothermic Machine Perfusion

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Journal of Clinical and Translational Hepatology 2023年第2期11卷 466-479页

作者： Jiahao Li Haoyang lu jian Zhang Yixuan Li Qiang zhao Organ Transplant Center The First Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdongChina

Liver transplantation is the most effective treatment of advanced liver disease,and the use of extended criteria donor organs has broadened the source of available *** normothermic machine perfusion(NMP)has become a useful tool in liver transplantation,there are no consistent criteria that can be used to evaluate the viability of livers during *** review summarizes the criteria,indicators,and methods used to evaluate liver viability during *** shape,appearance,and hemodynamics of the liver can be analyzed at a macroscopic level,while markers of liver injury,indicators of liver and bile duct function,and other relevant indicators can be evaluated by biochemical *** liver can also be assessed by tissue biopsy at the microscopic *** methods for assessment of liver viability are *** limitations of evaluating liver viability during NMP are discussed and suggestions for future clinical practice are provided.

关键词： Normothermic machine perfusion Liver viability Criteria

Two-dimensional lithiophilic YF_(δ) enabled lithium dendrite removal for quasi-solid-state lithium batteries

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Journal of Materiomics 2021年第2期7卷 355-365页

作者： Xiao Chen jian Xie Yunhao lu Xinbing zhao Tiejun Zhu State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou310027China Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province Hangzhou310027China Department of Physics Zhejiang UniversityHangzhou310027China

Lithium metal batteries are regarded as promising alternatives to lithium ion batteries due to their high specific ***,lithium dendrite growth during cycling causes safety problem and rapid capacity ***,we report a composite Li anode composed(LYF)of metallic Li and trace amounts(1 e2 wt%)of two-dimensional YF_(δ).The lithiophilic nature of YF_(δ) enables its homogeneous dispersion in metallic *** LYF electrode exhibits lower resistance,higher chemical and mechanical stability,and longer cycle life compared to bare Li electrode due to uniform Li stripping and plating with YF_(δ) incorporation,which was confirmed by in-situ optical microscope observation.X-ray photoelectron spectroscopy reveals that LiF can in-situ form on the LYF electrode with reactions between Li and YF_(δ) during *** spontaneous reactions are clarified by density functional theory calculations.A quasisolid-state cell with LYF anode,LiFePO_(4) cathode and cathode-supported solid electrolyte layer has been constructed with a soft interface constructed between Li anode and solid electrolyte by in-situ thermal *** cell shows a high initial discharge capacity of 147 mAh g1 at 0.5℃ at 60℃ and sustains a stable cycling over 50 cycles with the in-situ formed LiF-rich layer and soft interface.

关键词： Two-dimensional lithiophilic YF_(δ) Lithium anode Quasi-solid-state battery Lithium fluoride Soft interface

Microstructure and damping properties of MnCuNiFeCe alloy

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Rare Metals 2016年第8期35卷 615-619页

作者： Feng-Shuang lu Bin Wu jian-Fu Zhang Ping Li Dong-Liang zhao Functional Materials Research Institute Central Iron and Steel Research Institute Beijing 100081 China Institute for Advanced Materials and Technology University of Science and Technology Beijing Beijing 100083 China Beijing Key Laboratory of Precision Alloys Beijing 100081China

Mn-Cu alloys could exhibit high damping ability and excellent mechanical properties after proper heat treatment. In order to reduce the influence of impurity elements on damping capacity of Mn-Cu alloys, rare ele- ment cerium （Ce） was added into MnCuNiFe alloys. It is indicated that the contents of C, S and Si which have adverse effects on the damping capacity decrease and the grains are refined with the Ce content increasing. The microstructure of the MnCuNiFeCe alloy was investigated by X-ray diffraction （XRD）, scanning electron microscope （SEM） and transmission electron microscopy （TEM）. The damping ability （tane） of the alloy was characterized by dynamical mechanical analyzer （DMA）. It is found that the damping ability （tane） retains a very high level which is all above 0.05 from the temperature of -50 to 75 ℃ with the addition of Ce element. It is expected that the Ce alloying MnCuNiFe alloy with refined grains could find wide applications in the field of industry.

关键词： Mn-Cu alloy Damping properties Cerium

3-D NUMERICAL SIMULATIONS OF FLOW LOSS IN HELICAL CHANNEL

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Journal of Hydrodynamics 2012年第6期24卷 858-863页

作者： zhao Ling-zhi PENG Yan lu Fang LI jian LI Ran LIU Bao-lin Institute of Electrical Engineering Chinese Academy of Sciences College of Computing and Communication Engineering University of Chinese Academy of Sciences China Ship Scientific Research Center

The flow loss of a helical channel Magnetohydrodynamic （MHD） thruster without MHD effect was numerically studied with 3-D simulations, and a flow loss coefficient （ was defined to quantify the flow loss and its influencing factors were studied. The results show that （ decreases in a first-order exponential manner with the pitch of a helical wall and the Reynolds number, and it declines slowly when t / T 〉 0.2 and Re 〉 10^5, a flow guide makes the flow more smooth and uniform, especially in the flow guide and helical wall sub-regions and thus reduces the flow loss greatly, by about 30% with the averaged value of （ from 0.0385 to 0.027, a rectifier weakens the helical flow and strengthens the axial one in the rectifier and outlet sub-regions, thus reduces the rotational kinetic pressure with the averaged value of ξ declining about 4% from 0.0385 to 0.037, and ξ decreases with a rectifier＇s axial length when Re 〉 10^5 .

关键词： helical channel Magnetohydrodynamic (MHD) propulsion rectifier flow guide flow loss

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The Green

Acta Seismologica Sinica(English Edition) 2001年第2期14卷 196-202页

作者： lu jian-fei 1. jiangsu University of Science and Technology 212013 Zhenjiang Jiangsu China 2. Shanghai Jiaotong University 200030 Shanghai China

By using integral transform methods, the Green’s functions of horizontal harmonic force applied at the interior of the saturated half-space soil are obtained in the paper. The general solutions of the Biot dynamic equations in frequency domain are established through the use of Hankel integral transforms technique. Utilizing the above-mentioned general solutions, and the boundary conditions of the surface of the half-space and the continuous conditions at the plane of the horizontal force, the solutions of the boundary value problem can be determined. By the numerical inverse Hankel transforms method, the Green’s functions of the harmonic horizontal force are obtainable. The degenerate case of the results deduced from this paper agrees well with the known results. Two numerical examples are given in the paper.

关键词： Biot theory Hankel transforms Green’s function asymmetric P315.9