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Modeling and numerical analysis of nanoliquid (titanium oxide, graphene oxide) flow viscous fluid with second order velocity slip and entropy generation

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Chinese Journal of Chemical engineering 2021年第3期34卷 17-25页

作者： M.Ijaz Khan Seifedine Kadry Yuming Chu M.Waqas Department of Mathematics Riphah International UniversityFaisalabad CampusFaisalabad 38000Pakistan Department of Mathematics and Computer Science Beirut Arab UniversityBeirutLebanon Department of Mathematics Huzhou UniversityHuzhou 313000China Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha University of Science&TechnologyChangsha 410114China NUTECH School of Applied Sciences and Humanities National University of TechnologyIslamabad 44000Pakistan

The prime objective of the present communication is to examine the entropy-optimized second order velocity slip Darcy–Forchheimer hybrid nanofluid flow of viscous material between two rotating *** conducting flow is considered and saturated through Darcy–Forchheimer *** the disks are rotating with different angular frequencies and stretches with different *** graphene oxide and titanium dioxide are considered for hybrid nanoparticles and water as a continuous phase *** heating,heat generation/absorption and viscous dissipation effects are incorporated in the mathematical modeling of energy ***,binary chemical reaction with activation energy is *** total entropy rate is calculated in the presence of heat transfer irreversibility,fluid friction irreversibility,Joule heating irreversibility,porosity irreversibility and chemical reaction irreversibility through thermodynamics second *** nonlinear governing equations are first converted into ordinary differential equations through implementation of appropriate similarity transformations and then numerical solutions are calculated through Built-in-Shooting *** of sundry flow variables on the entropy generation rate,velocity,concentration,Bejan number,temperature are discussed graphically for both graphene oxide and titanium dioxide hybrid *** engineering interest like skin friction coefficient and Nusselt number are computed numerically and presented through *** is noticed from the obtained results that entropy generation rate and Bejan number have similar effects versus diffusion *** entropy generation rate is more against the higher Brinkman number.

关键词： Darcy-Forchheimer porous medium Titanium dioxide and graphene oxide nanoparticles Second order velocity slip Convective boundary condition Activation energy Heat generation/absorption

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O(t^(-β))-SYNCHRONIZATION AND ASYMPTOTIC SYNCHRONIZATION OF DELAYED FRACTIONAL ORDER NEURAL NETWORKS

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Acta Mathematica Scientia 2022年第4期42卷 1273-1292页

作者： Anbalagan PRATAP Ramachandran RAJA Jinde CAO Chuangxia HUANG Jehad ALZABUT Ovidiu BAGDASAR Department of Mathematics Alagappa UniversityKaraikudi 630004India Ramanujan Centre for Higher Mathematics Alagappa UniversityKaraikudi 630004India School of Mathematics Southeast UniversityNanjing 211189China Yonsei Frontier Lab Yonsei UniversitySeoul03722South Korea Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha University of Science and TechnologyChangsha410114China Department of Mathematics and General Sciences Prince Sultan UniversityRiyadh 12435Saudi Arabia Department of Electronics Computing and MathematicsUniversity of DerbyUnited Kingdom

This article explores the O(t^(-β))synchronization and asymptotic synchronization for fractional order BAM neural networks(FBAMNNs)with discrete delays,distributed delays and non-identical *** designing a state feedback control law and a new kind of fractional order Lyapunov functional,a new set of algebraic sufficient conditions are derived to guarantee the O(t^(-β))Synchronization and asymptotic synchronization of the considered FBAMNNs model;this can easily be evaluated without using a MATLAB LMI control ***,two numerical examples,along with the simulation results,illustrate the correctness and viability of the exhibited synchronization results.

关键词： O(t^(-β))-synchronization asymptotic synchronization BAM neural networks fractional order state feedback control law

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Exit identities for diusion processes observed at Poisson arrival times

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Frontiers of Mathematics in China 2020年第3期15卷 507-528页

作者： Yingqiu LI Ye CHEN Shilin WANG Zhaohui PENG School of Mathematics and Statistics Changsha University of Science and TechnologyChangsha 410004China College of Mathematics and Physics Hunan University of Arts and ScienceChangde 415000China Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha University of Science and TechnologyChangsha 410004China

For diffusion processes,we extend various two-sided exit identities to the situation when the process is only observed at arrival times of an independent Poisson *** results are expressed in terms of solutions to the ... 详细信息

关键词： Time-homogeneous diffusion process exit problem Poisson arrival time Brownian motion

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Rational Design of a Negative Photochromic Spiropyran-Contained Fluorescent Polymeric Nanoprobe for Sulfur Dioxide Ratiometric Detection and in Vivo Imaging

SSRN

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SSRN 2022年

作者： Chen, Jian Li, Xiang Lin, Zhong Tian, Yong Zhang, Chonghua Zhang, Peisheng Zeng, Rongjin Qiao, Lei Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers Hunan Provincial Key Lab of Advanced Materials for New Energy Storage and Conversion Hunan Province College Key Laboratory of QSAR/QSPR School of Chemistry and Chemical Engineering Hunan University of Science and Technology Hunan Xiangtan411201 China Central Laboratory of the Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University Xuzhou first People's Hospital Jiangsu Xuzhou221116 China Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science MOE Shandong Key Laboratory of Biochemical Analysis College of Chemistry and Molecular Engineering Qingdao University of Science and Technology China

It is highly desirable to develop high-performance of ratiometric fluorescent probes for SO2 detection and realize their application in biological imaging and food detection. In this study, we reported the rational design of a novel negative photochromic spiropyran derivative as Spiro[azahomoadamantane-pyran] (MAHD-SP) with notable orange fluorescence in its stable ring-opened state without UV regulation. The unsaturated double bond of MAHD-SP can undergo Michael addition reaction of SO2 , which makes the obviously fluorescence quenching of MAHD-SP. Then, MAHD-SP, a fluorescent conjugated polymer PFO and a polymeric surfactant PEO113 - b -PS49 were used to construct a ratiometric fluorescent polymeric nanoprobe ( RFPN ) via co-precipitation method. The probe exhibited high sensitivity and selectivity toward ratiometric detection of SO2 in pure aqueous solutions. Moreover, RFPN was applied to quantitative analysis of SO2 in food and water samples. The good biocompatibility of RFPN can also be used to visualization of exogenous and endogenous SO2 generation in zebrafish model. © 2022, The Authors. All rights reserved.

关键词： Addition reactions

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Charged Beetle Structure of Copper Foam Coupled with Electrostatic and Wetting Forces to Enhance Demulsification

SSRN

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SSRN 2023年

作者： Yang, Kangquan Zhong, Xianwei Cai, Kui Yan, Yuanyang Yin, Xinyu Pi, Pihui Nong, Yunjun Wen, Xiufang School of Chemistry and Chemical Engineering South China University of Technology Guangzhou510640 China Hunan University of Technology and Business Changsha China Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals Institute of Analysis Guangdong Academy of Sciences China National Analytical Center Guangzhou China

Superwetting materials are considered to have great potential for oil-water separation in water purification, food processing, petrochemical production, etc. However, the weak demulsification ability is the key challenge in most practical applications. Here, a charged beetle-structured copper foam with excellent demulsification ability is successfully prepared for ultrafast demulsification and separation of oil-in-water emulsions, the separation efficiency for various anionic surfactant-stabilized oil-in-water emulsions is up to 99.2%, and the permeation flux driven only by gravity reaches 27,734.0 L m-2 h-1. Molecular dynamics simulation results indicated that this copper foam can provide electrostatic force and wetting drive force in different directions for the anionic surfactant and oil via surface charge and composite wettability, and achieve charge heterogeneity and severe deformation of droplets for enhanced demulsification. Therefore, this charged beetle structure provides a new perspective for developing advanced materials for demulsification and separation in the petroleum industry and water purification fields. © 2023, The Authors. All rights reserved.

关键词： Purification

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Stability analysis and modeling for the three-dimensional Darcy-Forchheimer stagnation point nanofluid flow towards a moving surface

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Applied Mathematics and Mechanics(English Edition) 2021年第3期42卷 357-370页

作者： Yuming CHU M.I.KHAN M.I.U.REHMAN S.KADRY S.QAYYUM M.WAQAS Department of Mathematics Huzhou UniversityHuzhou 313000Zhejiang ProvinceChina Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha University of Science&TechnologyChangsha 410114China Department of Mathematics Riphah International UniversityFaisalabad CampusFaisalabad 38000Pakistan Department of Mathematics Quaid-i-Azam UniversityIslamabad 44000Pakistan Department of Mathematics and Computer Science Beirut Arab UniversityBeirut 11072809Lebanon NUTECH School of Applied Sciences and Humanities National University of TechnologyIslamabad 44000Pakistan

In this research,the three-dimensional(3D)steady and incompressible laminar Homann stagnation point nanofluid flow over a porous moving surface is *** disturbance in the porous medium has been characterized by the Darcy-Forchheimer *** slip for viscous fluid is *** energy equation is organized in view of radiative heat flux which plays an important role in the heat transfer *** governing flow expressions are first altered into first-order ordinary ones and then solved numerically by the shooting *** solutions are obtained for the velocity,skin friction coefficient,temperature,and Nusselt number subject to sundry flow parameters,magnetic parameter,Darcy-Forchheimer number,thermal radiation parameter,suction parameter,and dimensionless slip *** this research,the main consideration is given to the engineering interest like skin friction coefficient(velocity gradient or surface drag force)and Nusselt number(temperature gradient or heat transfer rate)and discussed numerically through *** conclusion,it is noticed from the stability results that the upper branch solution(UBS)is more reliable and physically stable than the lower branch solution(LBS).

关键词： viscous slip Darcy-Forchheimer relation thermal radiation stagnation point flow dual solution heat generation/absorption stability result

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Path Planning for Underwater Glider Based on Ant Colony Algorithm Guided by Artificial Potential Field 6

Path Planning for Underwater Glider Based on Ant Colony Algo...

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6th International Conference on Communication, Image and Signal Processings, CCISP 2021

作者： Jin, Xiantao Huang, Chuangxia Bao, Changchun School of Mathematics and Statistics Changsha University of Science and Technology College of Meteorology and Oceanography National University of Defense Technology Changsha410073 China Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha University of Science and Technology Changsha410114 China College of Meteorology and Oceanography National University of Defense Technology Changsha410073 China

ISBN: (纸本)9781665432795

This paper studies the path planning of underwater gliders in a global static environment, and proposes an improved algorithm based on ant colony algorithm, which eliminates the problem of slow convergence due to the lack of initial pheromone in path planning of ant colony algorithm. Firstly, according to the operating characteristics of the glider, the grid method is used to model the known marine environment;Secondly, the improved artificial potential field method is introduced to construct the heuristic information function to speed up the convergence speed of the ant colony algorithm;Finally, the ant colony algorithm is used to search Path, improve the original pheromone update rule of the ant colony algorithm. The simulation results show that the algorithm in this paper is effective and superior. © 2021 IEEE.

关键词： Motion planning

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Application of Modified Extended Tanh Technique for Solving Complex Ginzburg-Landau Equation Considering Kerr Law Nonlinearity

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Computers, Materials & Continua 2021年第2期66卷 1369-1378页

作者： Yuming Chu Muhannad A.Shallal Seyed Mehdi Mirhosseini-Alizamini Hadi Rezazadeh Shumaila Javeed Dumitru Baleanu Department of Mathematics Huzhou UniversityHuzhou313000China Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha University of Science&TechnologyChangsha410114China Mathematics Department College of ScienceUniversity of KirkukKirkukIraq Department of Mathematics Payame Noor UniversityTehranIran Amol University of Special Modern Technologies AmolIran Department of Mathematics COMSATS University IslamabadChak Shahzad Islamabad45550Pakistan Department of Mathematics Cankaya UniversityAnkaraTurkey Institute of Space Sciences Magurele-BucharestRomania

The purpose of this work is to find new soliton solutions of the complex Ginzburg–Landau equation(GLE)with Kerr law *** considered equation is an imperative nonlinear partial differential equation(PDE)in the field of *** applications of complex GLE can be found in optics,plasma and other related *** modified extended tanh technique with Riccati equation is applied to solve the Complex *** results are presented under a suitable choice for the values of *** are shown using the three and two-dimensional plots to represent the shape of the solution in real,and imaginary parts in order to discuss the similarities and difference between *** graphical representation of the results depicts the typical behavior of soliton *** obtained soliton solutions are of different forms,such as,hyperbolic and trigonometric *** results presented in this paper are novel and reported first time in the *** results establish the validity and applicability of the suggested technique for the complex *** suggested method with symbolic computational software such as,Mathematica and Maple,is proven as an effective way to acquire the soliton solutions of nonlinear partial differential equations(PDEs)as well as complex PDEs.

关键词： Modified extended tanh technique soliton solution complex Ginzburg-Landau equation Riccati equation

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Nucleic acids analysis

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Science China Chemistry 2021年第2期64卷 171-203页

作者： Yongxi Zhao Xiaolei Zuo Qian Li Feng Chen Yan-Ru Chen Jinqi Deng Da Han Changlong Hao Fujian Huang Yanyi Huang Guoliang Ke Hua Kuang Fan Li Jiang Li Min Li Na Li Zhenyu Lin Dingbin Liu Juewen Liu Libing Liu Xiaoguo Liu Chunhua Lu Fang Luo Xiuhai Mao Jiashu Sun Bo Tang Fei Wang Jianbin Wang Lihua Wang Shu Wang Lingling Wu Zai-Sheng Wu Fan Xia Chuanlai Xu Yang Yang Bi-Feng Yuan Quan Yuan Chao Zhang Zhi Zhu Chaoyong Yang Xiao-Bing Zhang Huanghao Yang Weihong Tan Chunhai Fan Institute of Analytical Chemistry and Instrument for Life Science The Key Laboratory of Biomedical Information Engineering of Ministry of EducationSchool of Life Science and TechnologyXi’an Jiaotong UniversityXi’an 710049China Institute of Molecular Medicine Shanghai Key Laboratory for Nucleic Acid Chemistry and NanomedicineRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200127China School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative MoleculesInstitute of Translational MedicineShanghai Jiao Tong UniversityShanghai 200240China Cancer Metastasis Alert and Prevention Center Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and ChemotherapyState Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou UniversityFuzhou 350108China CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China State Key Lab of Food Science and Technology International Joint Research Laboratory for Biointerface and BiodetectionSchool of Food Science and TechnologyJiangnan UniversityWuxi 214122China Faculty of Materials Science and Chemistry Engineering Research Center of Nano-Geomaterials of Ministry of EducationChina University of GeosciencesWuhan 430074China College of Chemistry and Molecular Engineering Biomedical Pioneering Innovation Center(BIOPIC)Beijing Advanced Innovation Center for Genomics(ICG)Peking-Tsinghua Center for Life SciencesPeking UniversityBeijing 100871China State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082China Division of Physical Biology CAS Key Laboratory of Interfacial Physics and TechnologyShanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201800China Bioimaging Center Shanghai Synchrotron Radiation FacilityZhangjiang LaboratoryShanghai Advanced

Nucleic acids are natural biopolymers of nucleotides that store, encode, transmit and express genetic information, which play central roles in diverse cellular events and diseases in living things. The analysis of nucleic acids and nucleic acids-based analysis have been widely applied in biological studies, clinical diagnosis, environmental analysis, food safety and forensic *** the past decades, the field of nucleic acids analysis has been rapidly advancing with many technological *** this review, we focus on the methods developed for analyzing nucleic acids, nucleic acids-based analysis, device for nucleic acids analysis, and applications of nucleic acids analysis. The representative strategies for the development of new nucleic acids analysis in this field are summarized, and key advantages and possible limitations are discussed. Finally, a brief perspective on existing challenges and further research development is provided.

关键词： nucleic acids analysis signal amplification DNA nanotechnology aptamer biosensing

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Retraction notice to "The atomic interactions between Histone and 3LPT protein using an equilibrium molecular dynamics simulation" [J. Mol. Liq. 328 (2021) 115397] (Journal of Molecular Liquids (2021) 328, (S0167732221001239), (10.1016/***.2021.115397))

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Journal of Molecular Liquids 2025年 429卷

作者： Ibrahim, Muhammad Saeed, Tareq Hekmatifar, Maboud Sabetvand, Roozbeh Chu, Yu-Ming Toghraie, Davood Iran, Teimour Ghahari School of Mathematics and Physics University of Science and Technology Beijing Beijing100083 China -Research Group Department of Mathematics Faculty of Science King Abdulaziz University P.O. Box 80203 Jeddah21589 Saudi Arabia Department of Mechanical Engineering Khomeinishahr Branch Islamic Azad University Khomeinishahr Iran Department of Energy Engineering and Physics Faculty of Condensed Matter Physics Amirkabir University of Technology Tehran Iran Department of Mathematics Huzhou University Huzhou313000 China Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha University of Science and Technology Changsha410114 China

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://***/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief. Post-publication, the editor discovered suspicious changes in authorship between the original submission and the revised version of this paper. The paper was originally submitted with Maboud Hekmatifar as the First Author and Davood Toghraie (also entered as "DT semiromi" in our systems) as the Corresponding Author. During revision, the authors Muhammad Ibrahim (New First Author), Tareq Saeed, and Yu-Ming Chu (Additional Corresponding Author) were all added to the revised paper without explanation and without the exceptional approval by the journal editor, which is contrary to the journal policy on changes to authorship. The editor reached out to the authors for an explanation, but they failed to provide a satisfactory explanation to these changes. The editor has determined that the authorship and the findings of the article cannot be relied upon, and has decided to retract the article. © 2025 Elsevier B.V.

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