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Dynamics of bioconvection flow of micropolar nanoparticles with Cattaneo-Christov expressions

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Applied Mathematics and Mechanics(English Edition) 2020年第9期41卷 1333-1344页

作者： S.A.SHEHzAD T.MuSHTAQ z.ABBAS A.RAuF S.u.KHAN I.TLILI Department of Mathematics COMSATS University IslamabadSahiwal 57000Pakistan Department of Mathematics COMSATS University IslamabadVehari 61100Pakistan Department of Mathematics The Islamia University of BahawalpurBahawalpur 63100Pakistan Institute of Research and Development Duy Tan UniversityDa Nang 550000Vietnam Faculty of Civil Engineering Duy Tan UniversityDa Nang 550000Vietnam

A numerical analysis is performed to analyze the bioconvective double diffusive micropolar non-Newtonian nanofluid flow caused by stationary porous *** consequences of the current flow problem are further extended by incorporating the Brownian and thermophoresis *** energy and mass species equations are developed by utilizing the Cattaneo and Christov model of heat-mass *** flow equations are converted into an ordinary differential model by employing the appropriate *** numerical solution is reported by using the MATLAB builtin bvp4c *** consequences of engineering parameters on the flow velocity,the concentration,the microorganisms,and the temperature profiles are evaluated *** numerical data for fascinating physical quantities,namely,the motile density number,the local Sherwood number,and the local Nusselt number,are calculated and executed against various parametric *** microrotation magnitude reduces for increasing magnetic *** intensity of the applied magnetic field may be utilized to reduce the angular rotation which occurs in the lubrication processes,especially in the suspension of *** the account of industrial applications,the constituted output can be useful to enhance the energy transport efficacy and microbial fuel cells.

关键词： bioconvection flow micropolar fluid nanoparticle Cattaneo-Christov theory porous disk

Some Properties of an Operator on L~∞(△)and Its Applications

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Acta Mathematica Sinica,English Series 2007年第10期23卷 1909-1914页

作者： na SuN LMAM and School of Mathematical Sciences Peking University Beijing 100871 P. R. China

In this paper, we introduce an operator Hμ（z） on L^∞（△） and obtain some of its properties. Some applications of this operator to the extremal problem of quasiconformal mappings are given. In particular, a suffi... 详细信息

关键词： norm Hamilton sequence extremal Beltrami coefficient Strebel point

The GSK3b sensing metabolism controls NLRP3 inflammasome activation

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中国药理学与毒理学杂志 2016年第10期30卷 1038-1039页

作者： HAN Sheng-na zHANG Li-rong Wajahat z MEHAL OuYANG Xin-shou Section of Digestive Diseases Yale University Department of Pharmacology Basic Medical CollegeZhengzhou University

OBJECTIVE To identify the role of GSK3 isoform inhibition on inflammasome *** The NLRP3 inflammasome was activated by typical LPS/ATP and host-derived metabolites in primary mouse *** pharmacological inhibition of GSK3 isoforms on inflammasome activation was assayed by quantifying IL-1βin the supernatant,and activated caspase-1in cell lysates using highly selective *** molecular mechanisms were investigated by protein pulldown assay,confocal imaging using forced gene expression system and endogenous protein tagged mouse *** Pharmacological inhibition of GSK3-β,but not GSK3-αisoform suppressed NLRP3 inflammasome activation in response to ATP,urate crystal and the microbial alkaloid toxin ***3-βinhibition did not inhibit melanoma 2(AIM2)inflammasome activation in response to double-stranded Dna(dsDna)and did not affect non-canonical caspase-11 inflammasome ***3-βinhibition suppressed high glucose mediated NLRP3 inflammasome ***,GSK3-βinhibition blocked NLRP3 inflammasome by preventing pro IL-1βtranscription,reducing caspase-1 activation and ASC speck ***3-βinhibition blocked NLRP3 inflammasome activation without affecting the level of reactive oxygen species(ROS)which is a crucial component in initialing inflammasome *** studies revealed that GSK3-βdirectly binds to ASC by both co-forced expression and endogenous protein ***,we found ASC can be glycosylated in response to inflammasome activation,and GSK3-βinhibition reduced ASC ***,the O-Glc nac transferase(OGT)deficient mouse macrophages showed the significant reduction of mature IL-1βsecretion in response to NLRP3 inflammasome *** Our results demonstrate a critical role of metabolism-sensing GSK3-βpathway in mediating NLRP3 inflammasome activation,thus defining a new therapeutic target for sterile inflammation.

关键词： GSK3-β NLRP3 inflammasome IL-1β secretion O-Glc nac transferase glycosylation

Magnetic properties of Sn-substituted Ni-zn ferrites synthesized from nano-sized powders of NiO, znO, Fe2O3, and SnO2

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Chinese Physics B 2017年第7期26卷 377-382页

作者： M A Ali M M uddin M N I Khan F u z Chowdhury S M Hoque S I Liba Department of Physics Chittagong University of Engineering and Technology (CUET) Materials Science Division Atomic Energy Center

A series of Ni0.6-x/2zn0.4-x/2SnxFe2O4(x = 0.0, 0.05, 0.1, 0.15, 0.2, and 0.3)(NzSFO) ferrite composities have been synthesized from nano powders using a standard solid state reaction technique. The spinel cubic structure of the investigated samples has been confirmed by x-ray diffraction(XRD). The magnetic properties such as saturation magnetization(Ms),remanent magnetization(Mr), coercive field(Hc), and Bohr magneton(μ) are calculated from the hysteresis loops. The value of Msis found to decrease with increasing Sn content in the samples. This change is successfully explained by the variation of A-B interaction strength due to Sn substitution in different sites. The compositional stability and quality of the prepared ferrite composites have also been endorsed by the fairly constant initial permeability(μ’) over a wide range of frequency. The decreasing trend of μ’ with increasing Sn content has been observed. Curie temperature TChas been found to increase with the increase in Sn content. A wide spread frequency utility zone indicates that the NzSFO can be considered as a good candidate for use in broadband pulse transformers and wide band read-write heads for video recording. The composition of x = 0.05 shows unusual results and the possible reason is also mentioned with the established formalism.

关键词： magnetic properties saturation magnetization permeability Curie temperature

嗜酸粒细胞对慢性鼻-鼻窦炎伴鼻息肉术后复发的预测价值研究

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全科医学临床与教育 2018年第5期16卷 524-527页

作者：徐征邹玉华张舒台州市第一人民医院耳鼻喉科浙江台州318020

目的研究外周血及组织嗜酸粒细胞(Eos)对慢性鼻-鼻窦炎伴鼻息肉(CRSw NP)术后复发的预测价值。方法选取接受治疗的CRSw NP患者235例,根据术后复发情况分为复发组和未复发组,比较两组的临床资料,采用苏木精-伊红染色法观察鼻息肉标本中... 详细信息

目的研究外周血及组织嗜酸粒细胞(Eos)对慢性鼻-鼻窦炎伴鼻息肉(CRSw NP)术后复发的预测价值。方法选取接受治疗的CRSw NP患者235例,根据术后复发情况分为复发组和未复发组,比较两组的临床资料,采用苏木精-伊红染色法观察鼻息肉标本中炎性细胞数量,采用logistic多因素回归分析CRSw NP复发相关因素,采用ROC曲线分析Eos对CRSw NP患者术后复发的预测价值。结果随访结果显示:CRSw NP术后复发131例(55.74%),未复发104例(44.26%)。复发组的哮喘发生率、嗅觉损失评分、头/面痛评分、流涕评分、Lund-Mackay评分均明显高于未复发组(χ2=10.61,t分别=28.04、3.94、2.86、6.23,P均u、淋巴细胞及组织浆细胞比例明显低于未复发组(z分别=9.13、6.48、5.27、5.37、8.72、4.33、4.33,P均uC面积为0.96(95%CI:0.94~0.98),特异度为78.60%,灵敏度为98.10%。结论组织Eos增多能够预测CRSw NP术后复发的情况,当组织Eos百分比取5.45时,其预测CRSw NP术后复发的灵敏度及特异度最为理想,可作为临床预测该疾病复发的标准。

关键词：嗜酸粒细胞百分比预测价值鼻息肉复发慢性鼻-鼻窦炎

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提高空客A320轮毂缺陷检出率的主要方法

制造业自动化 2018年第11期40卷 3-6页

作者：胡星晔邹泽昌福建船政交通职业学院机械工程系福州350007

以空客A320飞机轮毂为主要研究对象,结合我国企业检验的实际情况,以国内某航空公司维修部门质检实例和数据为基础,统计分析了影响空客A320飞机轮毂缺陷检出率的主要因素及各因素的主次比例关系;指出设备因素对缺陷检出率的影响比例高达5... 详细信息

以空客A320飞机轮毂为主要研究对象,结合我国企业检验的实际情况,以国内某航空公司维修部门质检实例和数据为基础,统计分析了影响空客A320飞机轮毂缺陷检出率的主要因素及各因素的主次比例关系;指出设备因素对缺陷检出率的影响比例高达55%,且应把重点放在提高飞机起降循环10000次以上的检出率以提高轮毂使用安全。为节约成本并提高检出率,针对上述两个核心因素,自主设计研发并制造了一套涡流探伤辅助设备,成功实现了移动、升降、自动缩放固定和自动离合功能,解决了轮毂手动探伤过程的恒定转速问题,显著提高了涡流检测效率、适应性、安全性和可靠性。使用该自主研发制造的设备对空客A320飞机轮毂进行检测,检测效率显著提高了25%左右,且对轮毂裂纹、夹杂等缺陷具有良好的检出效果。

关键词：空客A320 轮毂涡流探伤检出率

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一种电压调节板的分析与改进

移动电源与车辆 2018年第4期49卷 34-40页

作者：邹赫史红利马峰洲空军装备部驻北京地区军事代表局业务处北京100071 郑州金阳电气有限公司河南郑州450006

某型电源供电系统在四机并联时,由于负载调整不平衡,导致了电压调节板C8电容的损坏,本文详细描述了故障的排除方法,并提出了改进措施。

关键词：电压调节板 C8电容故障分析

Testing High-Dimensional Nonparametric Behrens-Fisher Problem

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Journal of Systems Science & Complexity 2022年第3期35卷 1098-1115页

作者： MENG zhen LI na YuAN Ao Academy of Mathematics and Systems Science Chinese Academy of SciencesBeijing 100190China university of Chinese Academy of Sciences Beijing 100049China Department of Biostatistics Bioinformatics and BiomathematicsGeorgetown UniversityWashington 20057USA

For high-dimensional nonparametric Behrens-Fisher problem in which the data dimension is larger than the sample size,the authors propose two test statistics in which one is u-statistic Rankbased Test(uRT)and another is Cauchy Combination Test(CCT).CCT is analogous to the maximumtype test,while uRT takes into account the sum of squares of differences of ranked samples in different dimensions,which is free of shapes of distributions and robust to *** asymptotic distribution of uRT is derived and the closed form for calculating the statistical significance of CCT is *** simulation studies are conducted to evaluate the finite sample power performance of the statistics by comparing with the existing *** simulation results show that our uRT is robust and powerful method,meanwhile,its practicability and effectiveness can be illustrated by an application to the gene expression data.

关键词： Cauchy combination test nonparametric Behrens-Fisher problem rank-based test u-statistic

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Ion-acoustic wave structures in the fluid ions modeled by higher dimensional generalized Korteweg-de Vries-zakharov-Kuznetsov equation

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Journal of Ocean Engineering and Science 2023年第6期8卷 623-635页

作者： u.Younas J.Ren Muhammad z.Baber Muhammad W.Yasin T.Shahzad State Key Laboratory of Power Grid Environmental Protection/Henan Academy of Big Data Zhengzhou UniversityZhengzhou 450001China Department of Mathematics and Statistics The University of LahoreLahorePakistan Department of mathematics University of NarowalNarowalPakistn Department of Basic Sciences and Humanities Narowal CampusUniversity of Engineering and Technology Lahore 54890Pakistan

In this paper,the higher dimensional generalized Korteweg-de-Varies-zakharov-Kuznetsov(gKdV-zK)equation is under *** model is used in the field of plasma physics which describes the effects of magnetic field on the weak ion-acoustic *** have applied two techniques,called asφ^(6)-model expansion method and the Hirota bilinear method(HBM)to explore the diversity of wave *** solutions are expressed in the form of hyperbolic,periodic and Jacobi elliptic function(JEF)***,the solitary wave solutions are also extracted.A comparison of our results to well-known results is made,and the study concludes that the solutions achieved here are ***,3-dimensional and contour profiles of achieved outcomes are drawn in order to study their dynamics as a function of parameter *** the basis of the obtained results,we can assert that the pro-posed computational methods are straightforward,dynamic,and well-organized,and will be useful for solving more complicated nonlinear problems in a variety of fields,particularly in nonlinear sciences,in conjunction with symbolic ***,our discoveries provide an important milestone in comprehending the structure and physical behavior of complex *** hope that our findings will contribute significantly to our understanding of ocean *** study,we hope,is appropriate and will be of significance to a broad range of experts involved in ocean engineering models.

关键词： Wave solutions gKdV-zK equation Bilinear transformation φ^(6)-model expansion method