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Sound & Vibration 2021年第4期55卷 295-303页

作者： Yanni Zhang jing pang College of Science Inner Mongolia University of TechnologyHohhot010000China Inner Mongolia Key Laboratory of Statistical Analysis Theory for Life Data and Neural Network Modeling Inner Mongolia University of TechnologyHohhot010000China

In this article,time fractional Fornberg-Whitham equation of He’s fractional derivative is *** transform the fractional model into its equivalent differential equation,the fractional complex transform is used and He’s homotopy perturbation method is implemented to get the approximate analytical solutions of the fractional-order *** graphs are plotted to analysis the fractional-order mathematical modeling.

关键词： Time fractional Fornberg-Whitham equation fractional complex transform He’s homotopy perturbation method

Approximate solutions to fractional differential equations

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Applied Mathematics and Mechanics(English Edition) 2023年第10期44卷 1791-1802页

作者： Yue LIU Zhen ZHAO Yanni ZHANG jing pang College of Sciences Inner Mongolia University of TechnologyHohhot 010051China Department of Mathematics and Computer Science Hetao CollegeBayannur 015000Inner Mongolia Autonomous RegionChina Inner Mongolia Key Laboratory of Statistical Analysis Theory for Life Data and Neural Network Modeling Hohhot 010051China College of Mathematics and Statistics Ningbo UniversityNingbo 315211Zhejiang ProvinceChina College of Science Liaoning University of TechnologyJinzhou 121001Liaoning ProvinceChina

In this paper, the time-fractional coupled viscous Burgers' equation(CVBE)and Drinfeld-Sokolov-Wilson equation(DSWE) are solved by the Sawi transform coupled homotopy perturbation method(HPM). The approximate series solutions to these two equations are obtained. Meanwhile, the absolute error between the approximate solution given in this paper and the exact solution given in the literature is analyzed. By comparison of the graphs of the function when the fractional order α takes different values, the properties of the equations are given as a conclusion.

关键词： Caputo fractional derivative coupled viscous Burgers'equation(CVBE) Drinfeld-Sokolov-Wilson equation(DSWE) Sawi transform homotopy perturbation method(HPM)

An Alternative Algorithm for the Symmetry Classification of Ordinary Differential Equations

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Sound & Vibration 2022年第1期56卷 65-76页

作者： Yi Tian jing pang College of Data Science and Application Inner Mongolia University of TechnologyHohhot010080China Inner Mongolia Autonomous Region Engineering and Technology Research Center of Big Data Based Software Service Hohhot010080China College of Science Inner Mongolia University of TechnologyHohhot010051China Inner Mongolia Key Laboratory of Statistical Analysis Theory for Life Data and Neural Network Modeling Inner Mongolia University of TechnologyHohhot010051China

This is the first paper on symmetry classification for ordinary differential equations(ODEs)based on Wu’s *** carry out symmetry classification of two ODEs,named the generalizations of the Kummer-Schwarz equations which involving arbitrary ***,Lie algorithm is used to give the determining equations of symmetry for the given equations,which involving arbitrary ***,differential form Wu’s method is used to decompose determining equations into a union of a series of zero sets of differential characteristic sets,which are easy to be solved *** branch of the decomposition yields a class of symmetries and associated *** algorithm makes the classification become direct and *** Dimitrov Bozhkov,and Pammela Ramos da Conceição have used the Lie algorithm to give the symmetry classifications of the equations talked in this paper in *** this paper,we can find that the differential form Wu’s method for symmetry classification of ODEs with arbitrary function(parameter)is effective,and is an alternative method.

关键词： Kummer-Schwarz equation ordinary differential equations(ODEs) differential form Wu’s method

Electrochemical and structural performances of Li[Ni_(0.133)Li_(0.2)Co_(0.133)Mn_(0.533)]O_(2)material during different cycle potential windows

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Rare Metals 2022年第8期41卷 2664-2679页

作者： Jun-Qiang Li Yun-Jie Yang jing pang Research and Development Center for Vehicle Battery and Energy Storage General Research Institute for Nonferrous MetalsBeijing100088China Beijing Institute of Chemical Reagents Beijing102607China

The effects of cycle potential window on electrochemical behaviors,structural characteristics,and surface changes in Li[Ni_(0.133)Li_(0.2)Co_(0.133)Mn_(0.533)]O_(2)(or 0.5 Li_(2)MnO_(3)·0.5 Li(Co_(0.333)Ni_(0.333)Mn_(0.333))O2)in lithium-ion battery were *** flat charge potential plateaus,~3.9 and~4.5 V,are observed in the initial charge curves of the *** changes in specific capacity and columbic efficiency are presented at~4.5 V during the first *** specific peaks show an obvious shift with the increase in charge cutoff *** the charge cutoff potential is above4.4 V,the cycle performance decreases with the increase in charge cutoff potentials.A film with the composition of C and O elements is observed on the cycled composite particle.

关键词： Lithium-ion battery Li-rich solid solution material Charge cutoff potential Cycle potential window Cycle performance

Synthesis and Anti-leukemia Evaluation of Tetrahydro-4H-pyrano[3,2-c]pyridines and Corresponding Anti-CD14 Monoclonal Antibody Conjugates

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Chemical Research in Chinese Universities 2013年第6期29卷 1104-1109页

作者： SUN Chuan-wen WANG jing pang Chun-cheng LI jing XIAO Di College of Life and Environment Sciences Shanghai Normal University Shanghai 200234 P.R.China

A series of novel tetrahydro-4H-pyrano[3,2-c]pyridines（3a-3p） were synthesized and found to possess potent antiproliferative activity against leukemia K562 cells in vitro. Preliminary bioassay indicates that compounds 3a and 3e afford the best activity, the IC50 values of them were 6.93 and 7.51μg/mL, respectively, which were lower than that of the anticancer drug 5-FU（1C50=8.56μg/mL）. To reduce the toxicity of compounds 3a-3p to the prolife- ration of normal bematopoietic cells, a tumor targeted CD14 monoclonal antibody（McAb） was used in conjugation with compounds 3a--3p to get conjugates 4a--4p, respectively. The inhibitory activities of conjugates 4a--4p toward K562 cells were discovered to approach those of compounds 3a--3p. In the presence of CD14 McAb, tumor cells were found to be much more susceptible to conjugates 3a--3p than normal hematopoietic cells. Therefore, the toxicity of conjugates 4a--4p to normal hematopoietic cells declined obviously. For example, as for the toxicity of compound 3a compared with that of compound 4a, the value of ICs0 increased from 35.90 μmol/L to 39.52 μmol/L.

关键词： Tetrahydro-4H-pyrano[3,2-c]pyridine Leukemia K562 cell Anti-CDl4 monoclonal antibody(McAb) Conjugate Inhibitory Toxicity

Design and test of automatic detection platform for soil fragmentation rate in rotary tillage

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International Journal of Agricultural and Biological Engineering 2020年第5期13卷 40-49页

作者： Xinwu Du Xulong Yang jing pang Jiangtao Ji College of Agricultural Equipment Engineering Henan University of Science and TechnologyLuoyang 471003HenanChina Advanced Manufacturing of Mechanical Equipment Henan Collaborative Innovation Center Luoyang 471003HenanChina

As an important index of soil crushing performance of rotary tiller,the soil fragmentation rate is still limited to manual *** this study,an automatic detection platform for soil fragmentation rate was designed,which integrated soil intake,screening,weighing and calculation of soil fragmentation *** platform can solve the problem that the index of the soil fragmentation rate cannot be detected quickly and effectively after rotary tillage,which leads to difficulty in field quality *** platform was mainly composed of a shovel soil module,conveying module,screening module,weighing module and automatic control system,which could realize single-line and multi-point automatic soil fragmentation rate *** on the homogeneous dry slope model,the tilting angles of soil intake and soil feeding after rotary tillage on the platform were determined to be 30.10°and 26.67°,*** to the principle of flow conservation,a rotary circulation screening module was designed to obtain soil particle size grading.A method based on the principle of multi-line and multi-point measurement was developed to detect soil fragmentation *** influence of screening speed on screening effect was analyzed,and the reasonable value of screening speed was determined to be 0.5 m/s.A field performance test was carried out in October 2019 to verify the detection performance of the *** results showed that,compared with the manual test method,the maximum test error was no more than 11%,the minimum test error was less than 4%,the maximum single test time was no more than 2 min,and the total test time of each test area was no more than 30 *** efficiency of single-point detection was significantly better than the manual detection,which indicated that the design in this study met the requirements of rapid detection of soil fragmentation rate,and provided a new idea for the automatic detection of quality of rotary tillage.

关键词： rotary tillage soil fragmentation rate automatic detection design test

N,N,O-Tridentate One-dimensional Methyl-bridged Heterobimetallic Complex: Synthesis, Crystal Structure and Catalytic Activity

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Chinese Journal of Structural Chemistry 2020年第7期39卷 1343-1349页

作者： HUA Yu-Peng pang jing-Lin GAO Yan-Peng WEI Xue-Hong Ordos Institute of Technology Ordos 017000Inner MongoliaChina Scientific Instrument Center Shanxi UniversityTaiyuan 030006China

The sequential reaction of the N,N,O-tridentate ligand HOC(CH2)5CH2N(Me)CH2CH2NMe2(LH)in diethyl ether with AlEtCl2 and MeLi afforded a lithium-aluminum complex containing a polymeric structure of one-dimensional chain[{-LiOC(CH2)5CH2N(Me)CH2CH2NMe2}AlMe2CH3-}n](1),which was characterized by 1H,13C NMR spectra,elemental analyses and single-crystal X-ray diffraction *** 1 crystallizes in triclinic,space group P1 with a=10.526(3),b=10.949(3),c=17.799(4)?,β=76.211(11)°,V=1915.3(8)?3,Dc=1.014 g·cm–3,F(000)=648 andμ=0.104 mm–*** addition,the heterobimetallic complex 1 was used to catalyze the Meerwein-Ponndorf-Verley(MPV)reaction and exhibited excellent catalytic activities in good yield(up to 97%).

关键词： heterobimetallic complex synthesis characterization catalytic reaction

Selective sensing of Cr^(VI) and Fe^(Ⅲ) ions in aqueous solution by an exceptionally stable Tb^(Ⅲ)-organic framework with an AIE-active ligand

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Chinese Chemical Letters 2021年第8期32卷 2443-2447页

作者： jing-jing pang Rui-Huan Du Xin Lian Zhao-Quan Yao Jian Xu Xian-He Bu School of Materials Science and Engineering National Institute for Advanced MaterialsTianjin Key Laboratory of Metal and Molecule-Based Material ChemistryNankai UniversityTianjin 300350China State Key Laboratory of Elemento-Organic Chemistry College of ChemistryNankai UniversityTianjin 300071China

We herein report a new lanthanide metal-organic framework(MOF) that exhibits excellent chemical stability,especially in the aqueous solution over a wide pH range from 1 to *** contrast to many reported lanthanide MOFs,this Tb-based MOF emits cyan fluorescence inherited from the integrated AIEactive ligand,rather than Ln3+ *** remarkably,its fluorescence signal features a highly selective and sensitive "turn-off" response toward CrO_(4)^(2-),Cr_(2)O_(7)^(2- )and Fe^(3+) ions,highlighted with the low detection limits down to 68.18,69.85 and 138.8 ppm,***,the exceptional structural stability and sensing performance render this material able to be a superior luminescent sensor for heavy metal ions in wastewater.

关键词： Lanthanide metal-organic framework Aggregation-induced emission Heavy metal ions Selective luminescence sensing Aqueous-phase sensing

Effects of two silicone resin coatings on performance of FeSiAl magnetic powder cores

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Journal of Iron and Steel Research International 2024年第5期31卷 1279-1288页

作者： Jia-qi Liu Zheng-qu Zhu Pu Wang Yi-fan Li jing pang Jia-quan Zhang School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing100083China Qingdao Yunlu Advanced Materials Technology Co. Ltd.Qingdao266232ShandongChina

Two silicon resins with excellent thermal stability,JH1123 and JH7102,are used as the insulated agents and binders for the gas-atomized FeSiAl powder,and corresponding magnetic powder cores(MPCs)are *** insulation capability and application prospects of the two silicon resins are evaluated by comparing the magnetic properties of the coated powder and *** scanning electron microscopy,energy dispersive X-ray spectroscopy and Fourier transform infrared spectroscopy results show that uniform insulation layers are both formed on the powder ***1123 has stronger binding ability,and the JH1123-coated powder exhibits severe agglomeration,with d50(average particle size)approximately twice that of the JH7102-coated *** as-prepared MPCs exhibit outstanding soft magnetic ***,the permeability of FeSiAl@JH1123 is up to 74.0,which is 35.5%higher than that of FeSiAl@JH7102 because JH1123 can further improve the density of the *** for FeSiAl@JH7102,it has better direct current bias and lower core loss of 716.9 mW cm^(−3) at 20 mT and 1000 kHz due to its lower coercivity and greater anti-magnetic saturation ability.A comprehensive comparison shows that FeSiAl@JH1123 is suitable for medium and high frequency applications,while FeSiAl@JH7102 is more suitable for high frequency *** indicates that the use of JH1123 and JH7102 silicon resins for binding and insulated coating not only simplifies the preparation process of MPCs,but also enables the controlled production of MPCs for different applications.

关键词： FeSiAl Insulated coating Magnetic powder core Permeability Core loss

Thermal behavior analysis of a pouch type Li[Ni0.7Co0.15Mn0.15]O2-based lithium-ion battery

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Rare Metals 2016年第4期35卷 309-319页

作者： Feng-Ling Yun Ling Tang Wen-Cheng Li Wei-Ren Jin jing pang Shi-Gang Lu General Research Institute for Nonferrous Metalsl R&D Center for Vehicle Battery and Energy StorageBeijing 100088China

Since lithium-ion battery with high energy density is the key component for next-generation electrical vehicles, a full understanding of its thermal behaviors at different discharge rates is quite important for the design and thermal management of lithium-ion batteries （LIBs） pack/module. In this work, a 25 Ah pouch type Li[Ni0.7 Co0.15Mn0.15]O2/graphite LIBs with specific energy of 200 ***-1 were designed to investigate their thermal behaviors, including temperature distribution, heat generation rate, heat capacity and heat transfer coefficient with environment. Results show that the temperature increment of the charged pouch batteries strongly depends on the discharge rate and depth of discharge. The heat generation rate is mainly influenced by the irreversible heat effect, while the reversible heat is important at all discharge rates and contributes much to the middle evolution of the tem- perature during discharge, especially at low rate. Subse- quently, a prediction model with lumped parameters was used to estimate the temperature evolution at different discharge rates of LIBs. The predicted results match well with the experimental results at all discharge rates. Therefore, the thermal model is suitable to predict the average temperature for the large-scale batteries under normal operating conditions.

关键词： Lithium-ionLi[Ni0.7Co0.15Mn0.15]O2 battery Thermal behavior High specific energy