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High-intensity swimming alleviates nociception and neuroinflammation in a mouse model of chronic postischemia pain by activating the resolvin E1-chemerin receptor 23 axis in the spinal cord

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Neural Regeneration Research 2023年第11期18卷 2535-2544页

作者： Xin Jia Ziyang Li Xiafeng Shen Yu zhang Li zhang ling zhang Department of Neurology and Neurological Rehabilitation Shanghai Yangzhi Rehabilitation Hospital(Shanghai Sunshine Rehabilitation Center)School of MedicineTongji UniversityShanghaiChina Department of Rehabilitation Shanghai Pudong HospitalFudan University Pudong Medical CenterShanghaiChina Key Laboratory of Cellular Physiology(Shanxi Medical University) Ministry of Educationand the Department of PhysiologyShanxi Medical UniversityTaiyuanShanxi ProvinceChina Key Laboratory of Central CNS Regeneration(Ministry of Education) Guangdong-Hong Kong-Macao Institute of CNS RegenerationJinan UniversityGuangzhouGuangdong ProvinceChina

Physical exe rcise effectively alleviates chronic pain associated with complex regional pain syndrome type-Ⅰ.However,the mechanism of exe rcise-induced analgesia has not been *** studies have shown that the specialized pro-resolving lipid mediator resolvin E1 promotes relief of pathologic pain by binding to chemerin receptor 23 in the nervous ***,whether the resolvin E1-chemerin receptor 23 axis is involved in exercise-induced analgesia in complex regional pain syndrome type-Ⅰ has not been *** the present study,a mouse model of chronic post-ischemia pain was established to mimic complex regional pain syndrome type-Ⅰ and subjected to an intervention involving swimming at different *** pain was reduced only in mice that engaged in high-intensity *** resolvin E1-chemerin receptor 23 axis was clearly downregulated in the spinal cord of mice with chronic pain,while high-intensity swimming restored expression of resolvin E1 and chemerin receptor ***,shRNA-mediated silencing of chemerin receptor 23in the spinal cord reve rsed the analgesic effect of high-intensity swimming exercise on chronic post-ischemic pain and the anti-inflammato ry pola rization of microglia in the dorsal horn of the spinal *** findings suggest that high-intensity swimming can decrease chronic pain via the endogenous resolvin E1-chemerin receptor 23 axis in the spinal cord.

关键词： central sensitization chemerin receptor 23 chronic post-ischemia pain complex regional pain syndrome exercise-induced analgesia microglia neuroinflammation resolvin E1 spinal cord swimming

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Method of data cleaning for network traffic classification

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The Journal of China Universities of Posts and Telecommunications 2014年第3期21卷 35-45页

作者： WANG Ruo-yu LIU Zhen zhang ling School of Computer Science and Engineering South China University of Technology

Network traffic classification aims at identifying the application types of network packets. It is important for Internet service providers （ISPs） to manage bandwidth resources and ensure the quality of service for different network applications However, most classification techniques using machine learning only focus on high flow accuracy and ignore byte accuracy. The classifier would obtain low classification performance for elephant flows as the imbalance between elephant flows and mice flows on Internet. The elephant flows, however, consume much more bandwidth than mice flows. When the classifier is deployed for traffic policing, the network management system cannot penalize elephant flows and avoid network congestion effectively. This article explores the factors related to low byte accuracy, and secondly, it presents a new traffic classification method to improve byte accuracy at the aid of data cleaning. Experiments are carried out on three groups of real-world traffic datasets, and the method is compared with existing work on the performance of improving byte accuracy. Experiment shows that byte accuracy increased by about 22.31% on average. The method outperforms the existing one in most cases.

关键词： network traffic classification byte accuracy elephant flow mice flow machine learning

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Influence of Alloying Elements on Mechanical Properties and Corrosion Resistance of Cold Rolled C-Mn-Si TRIP Steels

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Journal of Iron and Steel Research International 2012年第12期19卷 42-47页

作者： zhang ling-yun WU Di LI Zhuang Liaoning Key Laboratory of Aircraft Digital Manufacturing and Test Technologies Shenyang Aerospace University Shenyang 110136 Liaoning China State Key Laboratory of Rolling and Automation Northeastern University Shenyang 110004 Liaoning China School of Materials Science and Engineering Shenyang Aerospace University Shenyang 110136 Liaoning China

The rust layer plays an important role in the corrosion of steel in chlorinated environments. Salt spray, po- tentiodynamic polarization curve and tensile test were conducted in laboratory for the specimens after two-stage heat treatment. The influence of the alloying elements on mechanical properties and corrosion resistance of three kinds of steels was investigated by observing the microstructure and the morphologies of rust layer. The results show that the highest value （29%） of total elongation for steel A is obtained. The mechanical property of the specimen for steel C exhibits best strength ductility balance （21 384 MPa ·%） because of the presence of the multiphase microstructures after a two-stage heat treatment and the addition of the alloying elements. The corrosion products are known to be a complex mixture of Fe3O4 , Fe2O3 and α-FeOOH for steel C. The presence of the alloying elements results in the for mation of compact and dense rust layers in steel B and C. Passive film protects the substrate of TRIP （transformation induced plasticity） steel containing a complex mix of multiphase. Superior corrosion performance is exhibited for steel C with low alloying contents due to the enrichment of alloying elements within the rust layers.

关键词： TRIP steel alloying element rust layer mechanical property corrosion performance

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Exact Vortex Clusters of Two-Dimensional Quantum Fluid with Harmonic Confinement

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Chinese Physics Letters 2013年第4期30卷 14-17页

作者： CHONG Gui-Shu zhang ling-ling HAI Wen-Hua School of Physics and Microelectronics Hunan UniversityChangsha 410082 Department of Physics and Key Laboratory of Low-Dimensional Quantum Structure and Quantum Control of Ministry of Education Hunan Normal UniversityChangsha 410081

A family of exact analytical solutions of vortices in quantum fluid governed by a two-dimensional time-dependent Schr?dinger equation is presented,which describes different kinds of vortex *** dynamics of different vortex clusters,such as the single vortex,vortex pair,vortex dipole and vortex trimer in a two-dimensional quantum fluid are analytically studied based on these exact *** time evolutions of the wave of such vortices are demonstrated,and the orbits of motion of singular points in the vortices are also *** interactions of vortices in many-vortex clusters are discussed.A repulsive interaction between vortices with the same topological charge,and inter-annihilation and inter-creation of vortices with opposite topological charge,are shown.

关键词： vortex exact topological

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Carbides/nitrides precipitates in a C-Mn strip by CSP technology

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Journal of University of Science and Technology Beijing 2005年第6期12卷 517-520页

作者： ling zhang Wangyue Yang Weiwei Zheng Zuqing Sun Materials Science and Engineering School University of Science and Technology Beijing Beijing 100083 China The State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing Beijing 100083 China

The carbides/nitrides precipitates in ferrite grains, on grain boundaries and dislocations were investigated on a hot-rolled C-Mn strip （0.16wt%C-1.22wt%Mn-0.022wt%Ti） produced by the CSP （compact strip production） technology using TEM and X-ray energy dispersive spectroscopy. The Pickering＇s equation for the contribution of precipitates to the yield stress was also discussed. It is shown that there are numerous fine and dispersive precipitates TiC in the ferrite grains, on the grain boundaries and dislocations. Also there are a small amount of coarser Ti（C, N） particles and TiC particles associated with MnS. Precipitation strengthening on steels produced by the CSP technology is significant.

关键词： CSP technology C-Mn steel carbides/nitrides precipitates

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Effects of temperature on flowering phenological traits of Populus euphratica Oliv. and Populus pruinosa Schrenk populations, Xinjiang, China

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Journal of Arid Land 2019年第5期11卷 754-763页

作者： LI Zhijun zhang Xiao ZHENG Yaqiong QIU Aijun zhang ling College of Life Sciences Tarim UniversityAral 843300China Key Laboratory of Protection and Utilization of Biological Resource in Tarim Basin Xinjiang Production&Construction GroupsAral 843300China

The aims of this study were to explore the interspecific differences of Populus euphratica *** Populus pruinosa Schrenk populations and the intraspecific differences of males and females within the same species in flowering phenological traits,and the effects of temperatures on flowering phenological traits in different growth years(2001–2003 and 2013–2015).The results showed that *** population flowered earlier than *** ***,flowering phenological period of population,number of days of flowering phenological period per population,number of days of flowering phenological period per plant and average number of days of flowering period per plant of *** population were less than those of *** *** differences between male and female within the same species indicated that the flowering periods of males *** and *** populations were earlier than those of female *** both species,flowering phenological traits were significantly and negatively correlated with the average temperatures in previous ten days,previous one month and previous three months of *** species are sensitive to temperature changes and adjust to the changes by advancing the start of flowering and prolonging the duration of flowering.

关键词： Populus euphratica Oliv. Populus pruinosa Schrenk flowering phenology temperature flowering synchrony

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Spectral studies of the interaction between sanguinarine and guanosine

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Chinese Chemical Letters 2008年第12期19卷 1465-1469页

作者： Zuo Peng Du Quan ling Suo Xiao Yan zhang ling Wei zhang Xiong Hui Wei Chemical Engineering College Inner Mongolia University of Technology Hohhot 010051 China Department of Applied Chemistry Peking University Beifing 100190 China Beifing Boyuan-Hengsheng High-Technology Co. Ltd. Beijing 100190 China

The interaction between sanguinarine and guanosine was investigated by using UV-vis and fluorescence spectra at pH 7.2. The binding of sanguinarine to guanosine was substantiated by the hypochromism and bathochromism in the absorption spectra and the emission quenching in fluorescence spectra. The fluorescence lifetime results, the varieties of the fluorophore absorption spectra and the decrease of the binding constant with the increasing temperature all indicate that the fluorescence quenching is static. The ratio and constant of the binding cytidine to sanguinarine are 2 and 6.44 × 10^7, respectively. The result shows that the binding of sanguinarine to guanosine is not only exothermic but also entropy-driven with △H=-8.53kJ/mol, AS = 0.12 kJ/（molK）, and AG =-44.57 kJ/mol at 298.15 K.

关键词： Sanguinarine Guanosine Spectroscopy Interaction

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AcbHLH144 transcription factor negatively regulates phenolic biosynthesis to modulate pineapple internal browning

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Horticulture Research 2023年第10期10卷 150-161页

作者： Qian Li Guang Wang ling zhang Shijiang Zhu Guangdong Province Key Laboratory of Postharvest Physiology and Technology of Fruit and Vegetables College of HorticultureSouth China Agricultural UniversityGuangzhou 510642China

Internal browning(IB),a major physiological disorder of pineapples,usually happens in postharvest processes,but the underlying mechanism remains *** bHLH transcription factors are involved in regulating various biological processes,but whether they could regulate tissue browning in fruit during storage remains *** we showed that the phenolic biosynthesis pathway was activated in pineapples showing IB following 9 days of ***144 expression was the highest of the 180 transcription factors identified,downregulated in pineapple with IB,and negatively correlated with the major phenolic biosynthetic ***144 was shown to be localized in the nucleus and its transient overexpression in pineapples and overexpression in Arabidopsis decreased phenolic *** yeast one-hybrid assay and electrophoretic mobility shift assay showed that AcbHLH144 directly bound to the Ac4CL5 promoter and the dual-luciferase reporter assay showed that it inactivated Ac4CL5 *** results strongly suggest AcbHLH144 as a repressor for phenolic *** acid(ABA)alleviated IB,reduced phenolic accumulation,and downregulated phenolic biosynthetic genes,including *** analysis showed that AcbHLH144 was the most upregulated of all 39 bHLHs in response to *** enhanced AcbHLH144 expression,reduced phenolic contents,and downregulated phenolic biosynthetic genes in pineapples transiently overexpressing ***,ABA enhanced enzyme activity of GUS driven by the AcbHLH144 *** results showed that AcbHLH144 as a repressor for phenolic biosynthesis could be activated by ***,the work demonstrated that AcbHLH144 negatively regulated phenolic biosynthesis via inactivating Ac4CL5 transcription to modulate pineapple *** findings provide novel insight into the role of AcbHLH144 in modulating pineapple IB during postharvest processes.

关键词： phenolic transient brown

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On the Riemann–Hilbert problem of a generalized derivative nonlinear Schrödinger equation

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Communications in Theoretical Physics 2021年第1期73卷 6-17页

作者： Bei-Bei Hu ling zhang Tie-Cheng Xia School of Mathematics and Finance Chuzhou UniversityAnhui 239000China Department of Mathematics Shanghai UniversityShanghai 200444China

In this work,we present a unified transformation method directly by using the inverse scattering method for a generalized derivative nonlinear Schrödinger(DNLS)*** establishing a matrix Riemann-Hilbert problem and reconstructing potential function q(x,t)from eigenfunctions{Gj(x,t,η)}3/1 in the inverse problem,the initial-boundary value problems for the generalized DNLS equation on the half-line are ***,we also obtain that the spectral functions f(η),s(η),F(η),S(η)are not independent of each other,but meet an important global *** applications,the generalized DNLS equation can be reduced to the Kaup-Newell equation and Chen-Lee-Liu equation on the half-line.

关键词： Riemann-Hilbert problem generalized derivative nonlinear Schrödinger equation initial-boundary value problems unified transformation method

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Reduction of chromium oxides in stainless steel dust

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International Journal of Minerals,Metallurgy and Materials 2015年第6期22卷 573-581页

作者： Yan-ling zhang Wen-ming Guo Xin-lei Jia State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing

The recovery of metal oxides from stainless steel dust using C（graphite）, SiFe, and Al as reductants was investigated under various conditions. The apparent distribution ratio of Cr（L Cr ′^m/s ） in the recovered metal and residual slag phases was defined as the major performance metric. The results show that the recovery ratio of metals increases as the ratio of CaO ：SiO2 by mass in the residual slag increases to 1.17. The residual content of metals in the slag decreases as the Al2O3 content of the slag is increased from approximately 8wt% to 10wt%. The recovery ratio of Cr increases with increasing L Cr ′^ m/s , and a linear relationship between L Cr ′^m/s and the activity coefficient ratio of CrO in the slag and the recovered metal phase is observed. The combination of C and SiFe or Al as the reducing agents reveals that Si is the more effective coreductant.

关键词： stainless steel dust chromium oxides recovery apparent distribution ratio activity coefficient

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