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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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Optimization of Pyrolysis Parameters for Production of Biochar From Banana Peels: Evaluation of Biochar Application on the Growth of Ipomoea aquatica

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Frontiers in Energy Research 2021年 8卷

作者： Te, Wei Zun Muhanin, Kavinesh Nair Manor Chu, Yu-Ming Selvarajoo, Anurita Singh, Ajit Ahmed, Shams Forruque Vo, Dai-Viet N. Show, Pau Loke Department of Chemical and Environmental Engineering University of Nottingham Malaysia Semenyih Malaysia School of Biosciences University of Nottingham Malaysia Semenyih Malaysia Science and Math Program Asian University for Women Chattogram Bangladesh Department of Mathematics Huzhou University Huzhou China Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha University of Science and Technology Changsha China Center of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN) Nguyen Tat Thanh University Ho Chi Minh City Viet Nam

Banana peels waste can be utilized to produce high quality biochar that can be incorporated into the soil for sustainable production of crops. This research analyzed several properties of the biochar produced from the banana peel at different temperatures, residence times and heating rates. This study focuses on the biochar yield and the EDX analysis of the biochar produced. Response surface methodology using central composite design (CCD) was used to optimize these parameters in the batch reactor pyrolysis system. These factors were operated in different ranges for banana peels, in which pyrolysis temperature (200 to 600°C), residence time (60 to 180 min) and heating rate (5 to 15°C·min−1) were varied using 20 experiments respectively. Quality of the biochar was determined based on the biochar yield and O/C ratio. The optimum biochar chosen from the CCD model was applied to several pots of Ipomoea aquatica in different biochar dosage levels of 0, 3, 9 and 15 g (0, 1, 3 and 5 wt% of soil) respectively. Pot experiment was conducted with completely randomized design (CRD) of one factor with five replications to correlate the average plant heights with the biochar dosage levels. Results showed that biochar dosage of 1% yields the highest average final Ipomoea aquatica plant height of 37.04 cm. © Copyright © 2021 Te, Muhanin, Chu, Selvarajoo, Singh, Ahmed, Vo and Show.

关键词： Pyrolysis

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A Closer Look at the Minimum-Variance Portfolio Optimization Model

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mathematical Problems in engineering 2019年第1期2019卷

作者： Dai, Zhifeng College of Mathematics and Statistics Changsha University of Science and Technology Changsha410114 China Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha University of Science and Technology Changsha China

Recently, by imposing the regularization term to objective function or additional norm constraint to portfolio weights, a number of alternative portfolio strategies have been proposed to improve the empirical performance of the minimum-variance portfolio. In this paper, we firstly examine the relation between the weight norm-constrained method and the objective function regularization method in minimum-variance problems by analyzing the Karush-Kuhn-Tucker conditions of their Lagrangian functions. We give the range of parameters for the two models and the corresponding relationship of parameters. Given the range and manner of parameter selection, it will help researchers and practitioners better understand and apply the relevant portfolio models. We apply these models to construct optimal portfolios and test the proposed propositions by employing real market data. © 2019 Zhifeng Dai.

关键词： Financial data processing

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Initial successive coefficients for certain classes of univalent functions involving the exponential function

arXiv

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arXiv 2020年

作者： SHI, LEI WANG, ZHI-GANG SU, REN-LI ARIF, MUHAMMAD School of Mathematics and Statistics Anyang Normal University Anyang Henan455002 China School of Mathematics and Computing Science Hunan First Normal University Changsha Hunan410205 China School of Mathematics and Statistics Changsha University of Science and Technology Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha Hunan410114 China Department of Mathematics Abdul Wali Khan University Mardan23200 Pakistan

关键词： Exponential functions

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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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Retraction notice to “Investigation of dynamical behavior of 3LPT protein - water molecules interactions in atomic structures using molecular dynamics simulation” [J. Mol. Liq. 329 (2021) 115615]

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Journal of Molecular Liquids 2025年 421卷

作者： Muhammad Ibrahim Tareq Saeed Maboud Hekmatifar Roozbeh Sabetvand Yu-Ming Chu Davood Toghraie School of Mathematics and Physics University of Science and Technology Beijing Beijing 100083 China Nonlinear Analysis and Applied Mathematics (NAAM)-Research Group Department of Mathematics Faculty of Science King Abdulaziz University P.O. Box 80203 Jeddah 21589 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 Huzhou 313000 PR China Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha University of Science and Technology Changsha 410114 PR China

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Corrigendum to: Heron triangles with figurate number sides (Acta Mathematica Hungarica (2019), 157, (478–488), 10.1007/s10474-018-00907-0)

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Acta Mathematica Hungarica 2019年第2期159卷 689-689页

作者： Peng, J. Zhang, Y. School of Mathematics and Statistics Changsha University of Science and Technology Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha 410114 China

It was discovered that the original online version of the paper contained a mistake, on page 481, lines -4 to -1. It should be changed into the following: (Formula presented.). © 2019, Akadémiai Kiadó, ...

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Symmetric integrators based on continuous-stage Runge-Kutta-Nyström methods for reversible systems

arXiv

引用

arXiv 2019年

作者： Tang, Wensheng Zhang, Jingjing College of Mathematics and Statistics Changsha University of Science and Technology Changsha410114 China Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha410114 China School of Science East China Jiaotong University Nanchang330013 China

In this paper, we study symmetric integrators for solving second-order ordinary differential equations on the basis of the notion of continuous-stage Runge-Kutta-Nyström methods. The construction of such methods heavily relies on the Legendre expansion technique in conjunction with the symmetric conditions and simplifying assumptions for order conditions. New families of symmetric integrators as illustrative examples are presented. For comparing the numerical behaviors of the presented methods, some numerical experiments are also reported. Copyright © 2019, The Authors. All rights reserved.

关键词： Ordinary differential equations

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Computational Multi-term Time-space Fractional Bloch-Torrey Models in Three-dimensions

Computational Multi-term Time-space Fractional Bloch-Torrey ...

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Progress in Electromagnetic Research Symposium (PIERS)

作者： Fawang Liu Jing Li Vo Anh Fuzhou University Fuzhou China Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha University of Science and Technology Changsha China Swinburne University of Technology P. O. Box 218 Hawthorn VIC Australia

ISBN: (数字)9781728134031

ISBN: (纸本)9781728134048

In this paper, we will develop new mathematical tools for mapping tissue microstructural properties via the use of space-time fractional calculus methods. We propose the following two new computational multi-term time-space fractional diffusion models in three dimensions, which can be used to simulate multi-term time-space fractional Bloch-Torrey models in three dimensions: Model I: Finite element method for the multi-term time-space fractional diffusion model with Riesz fractional operator; Model II: Finite difference method for the multi-term time-space fractional diffusion equation with fractional Laplacian operator. Firstly, the three-dimensional multi-term time-space fractional Bloch-Torrey models are decoupled; the problem is then equivalent to solving the three-dimensional time-space fractional diffusion equations (Model I and Model II). Secondly, we propose the finite element method for Model I and finite difference method for Model II, respectively. These methods can be directly used to simulate three-dimensional multi-term time-space fractional Bloch-Torrey models. Finally, some numerical examples are given to demonstrate the versatility and application of the models.

关键词： mathematical model Springs Brain modeling Solid modeling Numerical models Magnetic resonance imaging Computational modeling

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A note on continuous-stage Runge-Kutta methods

arXiv

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arXiv 2018年

作者： Tang, Wensheng Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha410114 China

We provide a note on continuous-stage Runge-Kutta methods (csRK) for solving initial value problems of first-order ordinary differential equations. Such methods, as an interesting and creative extension of traditional Runge-Kutta (RK) methods, can give us a new perspective on RK discretization and it may enlarge the application of RK approximation theory in modern mathematics and engineering fields. A highlighted advantage of investigation of csRK methods is that we do not need to study the tedious solution of multi-variable nonlinear algebraic equations associated with order conditions. In this note, we will discuss and promote the recently-developed csRK theory. In particular, we will place emphasis on geometric integrators including symplectic methods, symmetric methods and energy-preserving methods which play a central role in the field of geometric numerical integration. Copyright © 2018, The Authors. All rights reserved.

关键词： Runge Kutta methods

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