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Conservation laws of the complex short pulse equation and coupled complex short pulse equations

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Communications in Theoretical Physics 2022年第7期74卷 49-56页

作者： Lihua Zhang Bo Shen Shuxin Han Gangwei wang lingshu wang School of Mathematics and Statistics Hebei University of Economics and BusinessShijiazhuang 050061China

In this paper, the complex short pulse equation and the coupled complex short pulse equations that can describe the ultra-short pulse propagation in optical fibers are investigated. The two complex nonlinear models are turned into multi-component real models by proper transformations. Lie symmetries are obtained via the classical Lie group method, and the results for the coupled complex short pulse equations contain the existing results as particular *** on the linearizing operator and adjoint linearizing operator for the two real systems,adjoint symmetries can be obtained. Explicit conservation laws are constructed using the symmetry/adjoint symmetry pair(SA) method. Relationships between the nonlinear selfadjointness method and the SA method are investigated.

关键词： complex short pulse equation coupled complex short pulse equations symmetries adjoint symmetries conservation laws SA method

针刺足三里、阳陵泉穴对坐骨神经损伤Wistar大鼠NGF、BDNF表达的影响

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陕西中医 2024年第6期45卷 751-756,762页

作者：张丙祥李冠男梁霄王锐杨婧王玲姝黑龙江中医药大学黑龙江哈尔滨150040 黑龙江中医药大学附属第一医院黑龙江哈尔滨150040

目的:比较针刺足三里穴、阳陵泉穴对Wistar大鼠坐骨神经损伤(SNI)的功能恢复作用差异。方法:将48只SPF级雄性Wistar大鼠随机分为四组:假手术组、模型组、阳陵泉组、足三里组,每组12只,并采用物理损伤法制备大鼠坐骨神经损伤模型。造模结... 详细信息

目的:比较针刺足三里穴、阳陵泉穴对Wistar大鼠坐骨神经损伤(SNI)的功能恢复作用差异。方法:将48只SPF级雄性Wistar大鼠随机分为四组:假手术组、模型组、阳陵泉组、足三里组,每组12只,并采用物理损伤法制备大鼠坐骨神经损伤模型。造模结束24 h后,根据治疗方案,阳陵泉组和足三里组分别针刺大鼠双侧阳陵泉穴及足三里穴,直刺进针5 mm并留针15 min,每日1次,连续针刺治疗28 d。假手术组仅接受外科手术暴露坐骨神经而不进行挤压,不进行任何针刺治疗处理。观察针刺治疗后大鼠坐骨神经功能指数(SFI)的变化、受损坐骨神经组织病理学改变、免疫荧光法和Western blot检测受损坐骨神经组织中神经生长因子(NGF)和脑源性神经营养因子(BDNF)蛋白的表达变化、Hoechst 33258染色观察雪旺细胞的参与情况。结果:与假手术组相比,模型组大鼠行走印迹明显减轻,SFI评分显著下降(P<0.01);HE染色结果显示模型组坐骨神经组织纤维结构紊乱,排列混乱,呈不规则形式,且周围雪旺细胞分布增多、变圆,部分变形呈空泡状变性。免疫荧光与蛋白质印迹分析显示模型组坐骨神经中NGF、BDNF蛋白阳性表达显著增加(P<0.01);Hoechst 33258染色结果显示模型组细胞核数量明显增加(P<0.01)。与模型组比较,足三里组、阳陵泉组大鼠行走印迹明显加深,SFI评分显著上升(P<0.01),足三里组较阳陵泉组各指标改善更显著(P<0.01);HE染色结果显示足三里、阳陵泉组大鼠坐骨神经组织纤维整体排列序列性尚整齐,仅有部分髓鞘脱落,轴索水肿减轻,雪旺细胞增殖分化,炎性细胞浸润明显减少,并观察到神经纤维出现新的生长,且足三里组病理变化改善程度优于阳陵泉组。坐骨神经中NGF、BDNF蛋白阳性表达明显上调(P<0.01),足三里组NGF、BDNF蛋白表达较阳陵泉组上调更显著(P<0.01);细胞核数量增加(P<0.01)。结论:针刺足三里穴、阳陵泉穴有助于促进受损坐骨神经的结构和功能恢复,并显著上调Wistar大鼠坐骨神经损伤处NGF、BDNF蛋白的表达,且针刺足三里穴对受损坐骨神经损伤的改善效果更好,从而促进受损神经再生与修复。

关键词：坐骨神经损伤针刺足三里阳陵泉神经生长因子脑源性神经营养因子

Ni Ping Comforts Dying Fan

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Women of China 1994年第5期 31-32页

作者： wang lingshu Li Li

NI Ping is an anchorwoman for CCTV. Because of this, she wins a lot of admirers. Among them was a girl who devoted her life to following Ni’s career. She was Zhao Ying, a 15-year-old student at Beijing No. 80 Middle School. Her small bedroom is virtually a shrine to Ni Ping. Her bookcase is filled with videotapes and magnetic tapes of programs hosted by Ni. Ni’s photographs are all over the walls. In addition, Zhao had created her own newsletter about her idol called Ni Ping’s Feature. Below the title of the newsletter, Zhao had written the

关键词： Ni Ping Comforts Dying Fan

Optimized speed control for electric vehicles on dynamic wireless charging lanes: An eco-driving approach

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Journal of Intelligent and Connected Vehicles

Journal of Intelligent and Connected Vehicles 2024年第1期7卷 52-63页

作者： lingshu Zhong Ho Sheau En Mingyang Pei Jingwen Xiong Tao wang School of Systems Science and Engineering Sun Yat-sen UniversityGuangzhou 510399China Faculty of Business and Management UCSI UniversityKuala Lumpur 56000Malaysia Department of Civil Engineering and Transportation South China University of TechnologyGuangzhou 510641China School of Automotive and Transportation Engineering Hefei University of TechnologyHefei 230000China

As the adoption of Electric Vehicles(EVs)intensifies,two primary challenges emerge:limited range due to battery constraints and extended charging *** traditional charging stations,particularly those near highways,exacerbate these issues with necessary detours,inconsistent service levels,and unpredictable waiting *** emerging technology of dynamic wireless charging lanes(DWCLs)may alleviate range anxiety and eliminate long charging stops;however,the driving speed on DWCL significantly affects charging efficiency and effective charging ***,the existing research has addressed load balancing optimization on Dynamic Wireless Charging(DWC)systems to a limited *** address this critical issue,this study introduces an innovative eco-driving speed control strategy,providing a novel solution to the multi-objective optimization problem of speed control on *** utilize mathematical programming methods and incorporate the longitudinal dynamics of vehicles to provide an accurate physical model of *** objective functions are formulated to tackle the challenges at hand:reducing travel time,increasing charging efficiency,and achieving load balancing on DWCL,which corresponds to four control *** results of numerical tests indicate that a comprehensive control strategy,which considers all objectives,achieves a minor sacrifice in travel time reduction while significantly improving energy efficiency and load ***,by defining the energy demand and speed range through an upper operation limit,a relatively superior speed control strategy can be *** work contributes to the discourse on DWCL integration into modern transportation systems,enhancing the EV driving experience on major roads.

关键词： dynamic wireless charging(DWC) electric vehicle(EV) eco-driving speed control load balancing

Prominent removal of trace lead(Ⅱ)ions from polluted water by terephthalic acid reformed Al/Zn metal organic nanoflakes

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Particuology 2024年第1期84卷 81-88页

作者： Junhua Li lingshu Gao Junmao Hong Xiaofeng Shi Sifang Kong Jingyu wang Hassan Algadi Benbin Xu Zhanhu Guo School of Chemistry and Chemical Engineering North University of ChinaTaiyuan030051China School of Traffic&Environment Shenzhen Institute of Information TechnologyShenzhen518172China Department of Electrical Engineering Faculty of EngineeringNajran UniversityNajran11001Saudi Arabia Mechanical and Construction Engineering Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle Upon TyneNE18STUK

Terephthalic acid reformed Al/Zn metal organic nanoflake was prepared and functionalized with trie-thylamine(T-AlZn).Without adding terephthalic acid,there was no product of metal organic nanoflake.T-AlZn has a remarkable performance in removing trace lead(Ⅱ)ions(Pb^(2+)).The adsorption equipoise with the removal rate≥97%was reached within 35 *** removal rates of T-AlZn for Pb^(2+)declined by only 16.73%after four *** adsorption of T-AlZn for Pb^(2+)follows the Langmuir isotherms model and pseudo-second-order dynamics *** utmost adsorption competence was calculated as 215.27 mg g^(-1).The T-AlZn adsorbent exhibits a bright prospect in the adsorption for Pb^(2+)and is a considerable candidate in the disposal of industrial sewage.

关键词： Metal organic complex Nanoflake Trace level Pb^(2+) Adsorption

Leakage tests of the stainless steel vessels of the antineutrino detectors in the Daya Bay reactor neutrino experiment

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Science China(Technological Sciences) 2013年第1期56卷 148-151页

作者： CHEN XiaoHui LUO XiaoLan HENG YueKun wang lingshu TANG Xiao MA XiaoYan ZHUANG HongLin BAND Henry R. CHERWINKA Jeff J. XIAO Qiang HEEGER Karsten M. Institute of High Energy Physics Chinese Academy of Sciences University of Wisconsin MadisonWisconsin53706USA

The antineutrino detectors for the Daya Bay reactor neutrino experiment are liquid scintillator detectors designed to detect electron anti-neutrino via inverse beta interactions with high efficiency and low *** the antineutrino detector will be installed and immerged in water Cherenkov detector and will run for 3 to 5 years,water tightness is critical to the successful operation of the antineutrino detectors.A special seal technique was used for this *** leak checking methods have been employed to ensure the seal *** paper describes the sealing method and leakage testing results.

关键词： Daya Bay reactor neutrinos antineutrino detector seal leakage test

一类具有阶段结构和时滞的捕食模型的稳定性及Hopf分支(英文)

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应用数学 2012年第1期25卷 131-139页

作者：王玲书河北经贸大学数学与统计学学院河北石家庄050061

研究一类具有阶段结构和时滞的捕食模型.通过特征方程分别分析了正平衡点和边界平衡点的局部稳定性,到了系统Hopf分支存在的充分条件.通过规范型理论和中心流型定理,给出了确定Hopf分支方向和分支周期解的稳定性的计算公式.

关键词：捕食模型阶段结构时滞稳定性 Hopf分支

一个捕食者染病、食饵具有阶段结构的生态-流行病模型的稳定性

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工程数学学报 2022年第2期39卷 224-236页

作者：张梅王玲书贾美枝河北经贸大学数学与统计学学院石家庄050061

研究了一个捕食者染病且食饵具有阶段结构的生态-流行病模型的稳定性,考虑了捕食者对食饵的Holling-Ⅱ型功能性反应函数,并讨论了由捕食者的妊娠期引起的时滞对模型稳定性的影响。通过计算特征方程的特征值,运用Hurwitz判定定理,得到了... 详细信息

研究了一个捕食者染病且食饵具有阶段结构的生态-流行病模型的稳定性,考虑了捕食者对食饵的Holling-Ⅱ型功能性反应函数,并讨论了由捕食者的妊娠期引起的时滞对模型稳定性的影响。通过计算特征方程的特征值,运用Hurwitz判定定理,得到了该模型的在平凡平衡点、捕食者灭绝平衡点、无病平衡点和正平衡点的局部稳定性,得到了正平衡点处存在Hopf分支的充分条件。通过构造Lyapunov泛函,运用LaSall不变集原理得到了该模型的平凡平衡点、捕食者灭绝平衡点、无病平衡点和正平衡点全局稳定的充分条件。

关键词：生态-流行病模型稳定性阶段结构时滞

一个具有阶段结构和Holling-Ⅱ型功能反应的捕食者-食饵模型的全局稳定性(英文)

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应用数学 2013年第4期26卷 765-773页

作者：王玲书冯光辉河北经贸大学数学与统计学学院河北石家庄050061 军械工程学院基础部数学教研室河北石家庄050003

研究一个具有Holling-Ⅱ型功能反应的捕食者-食饵均具有阶段结构的捕食者-食饵模型的稳定性.通过分析特征方程,讨论该模型非负平衡点的局部稳定性,并得到系统持续生存的充分条件.通过构造适当的Lyapunov泛函,运用LaSalle不变集原理,讨... 详细信息

研究一个具有Holling-Ⅱ型功能反应的捕食者-食饵均具有阶段结构的捕食者-食饵模型的稳定性.通过分析特征方程,讨论该模型非负平衡点的局部稳定性,并得到系统持续生存的充分条件.通过构造适当的Lyapunov泛函,运用LaSalle不变集原理,讨论该模型的非负平衡点的全局稳定性.

关键词：阶段结构 LaSalle不变集原理全局稳定性