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Computer Modeling in Engineering & Sciences 2025年第1期142卷 713-732页

作者： Petr Opela Josef Walek Jaromír Kopecek Department of Metallurgical Technologies Faculty of Materials Science and TechnologyVSB–Technical University of OstravaOstrava70800Czech Republic FZU—Institute of Physics of the Czech Academy of Sciences Prague18200Czech Republic

In engineering practice,it is often necessary to determine functional relationships between dependent and independent *** relationships can be highly nonlinear,and classical regression approaches cannot always provide sufficiently reliable ***,Machine Learning(ML)techniques,which offer advanced regression tools to address complicated engineering issues,have been developed and widely *** study investigates the selected ML techniques to evaluate their suitability for application in the hot deformation behavior of metallic *** ML-based regression methods of Artificial Neural Networks(ANNs),Support Vector Machine(SVM),Decision Tree regression(DTr),and Gaussian Process regression(GPr)are applied to mathematically describe hot flow stress curve datasets acquired experimentally for a medium-carbon *** the GPr method has not been used for such a regression task before,the results showed that its performance is the most favorable and practically unrivaled;neither the ANN method nor the other studied ML techniques provide such precise results of the solved regression analysis.

关键词： Machine learning Gaussian process regression artificial neural networks support vector machine hot deformation behavior

A stable Cenozoic geologic time scale is indispensable

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Episodes 2006年第1期29卷 43-45页

作者： amos Salvador Department of Geological Sciences University of Texas at Austin Austin Texas 78712 USA.

A stable, standard geologic time scale is indispensable for the clear and precise communication among geologists; it is a basic tool of geologic work. Considerable progress has been made to achieve such a stable time scale. However, during the last few years several proposals have been made to modify the Cenozoic section of the geologic time scale that threaten to destabilize it. Seven articles published in Episodes since 2000 that could contribute to this destabilization are discussed. They provide excellent examples of the profusion of different terminologies, hierarchies, and stratigraphic relationships that have been proposed： to eliminate the Tertiary and the Quaternary or to raise their rank to suberathems; to extend the Neogene to the present; to make the Quaternary a formal subsystem of the Neogene, or consider it an informal stratigraphic unit; to eliminate the Holocene, and to decouple the base of the Pleistocene from the base of the Quaternary. If adopted, these proposals would cause nothing but great confusion and controversy. They disregard the clear preferences of geologists the world over as reflected by the terminology they have been using for many decades. Common sense would dictate the continued use of this terminology in its current, widely accepted form.

关键词：新生代地质时间比例尺地质工作

Emerging potential of progranulin-dependent SorCS2 signaling in healthy and diseased nervous systems

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Neural regeneration research 2025年第9期20卷 2591-2593页

作者： Alena Salasova Anders Nykjær Danish research Institute of Translational Neuroscience DANDrITE-Nordic EMBL Partnership for Molecular Medicine and Centre of Excellence PROMEMODepartment of BiomedicineAarhus UniversityAarhusDenmark

The formation of the mammalian nervous system and its maturation into sensory,motor,cognitive,and behavioral circuits is a complex process that begins during early embryogenesis and lasts until young *** neurodevelopm... 详细信息

关键词： progr jointly CS2

relativistic treatment of the spin-zero particles subject to the second Pschl Teller-like potential

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Chinese Physics B 2013年第10期22卷 101-106页

作者： Ekele V.Aguda amos S.Idowu Department of Mathematics Ahmadu Bello University ZariaNigeria Department of Mathematics University of IlorinNigeria

The three-dimensional Klein-Gordon equation is solved for the case of equal vector and scalar second Poschl-Teller potential by proper approximation of the centrifugal term within the framework of the asymptotic iteration method. Energy eigenvalues and the corresponding wave function are obtained analytically. Eigenvalues are computed numerically for some values of n and It is found that the results are in good agreement with the findings of other methods for short-range potential.

关键词： second P6schl-Teller potential asymptotic iteration eigenvalues eigenfunction

A comprehensive investigation on nonlinear vibration and bending characteristics of bio-inspired helicoidal laminated composite structures

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 81-100页

作者： S.SAUrABH r.KIrAN D.SINGH r.VAISH V.S.CHAUHAN School of Mechanical and Materials Engineering Indian Institute of Technology Mandi

Bio-inspired helicoidal composite laminates, inspired by the intricate helical structures found in nature, present a promising frontier for enhancing the mechanical properties of structural designs. Hence, this study provides a comprehensive investigation into the nonlinear free vibration and nonlinear bending behavior of bio-inspired composite plates. The inverse hyperbolic shear deformation theory(IHSDT) of plates is employed to characterize the displacement field, with the incorporation of Green-Lagrange nonlinearity. The problem is modeled using the C0finite element method(FEM), and an in-house code is developed in the MATLAB environment to solve it numerically. Various helicoidal layup configurations including helicoidal recursive(Hr), helicoidal exponential(HE), helicoidal semi-circular(HS), linear helicoidal(LH), and Fibonacci helicoidal(FH)with different layup sequences and quasi-isotropic configurations are studied. The model is validated, and parametric studies are conducted. These studies investigate the effects of layup configurations, side-to-thickness ratio, modulus ratios, boundary conditions, and loading conditions at different load amplitudes on the nonlinear vibration and nonlinear bending behaviors of bio-inspired composite plates. The results show that the laminate sequence exerts a substantial impact on both nonlinear natural frequencies and nonlinear bending behaviors. Moreover, this influence varies across different side-to-thickness ratios and boundary conditions of the bio-inspired composite plate.

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Antisense oligonucleotides provide optimism to the therapeutic landscape for tauopathies

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Neural regeneration research 2025年第3期20卷 803-804页

作者： Glenn A.Harris Lauren r.Hirschfeld rainwater Charitable Foundation Fort WorthTXUSA

Tauopathies are a group of neurodegenerative diseases characterized by abnormal metabolism of the misfolded tau protein. Tau is encoded by the microtubule-associated protein tau gene(MAPT) and can be classified as either 3-repeat(3r) or 4-repeat(4r) based on the number of repeat domains from alternative splicing of exon 10 of the MAPT gene.

关键词： tau metabolism diseases

The contribution of cooperative irrigation scheme to poverty reduction in Tanzania

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Journal of Integrative Agriculture 2021年第4期20卷 953-963页

作者： ZHANG Chuan-hong Wandella amos BENJAMIN WANG Miao College of Humanities and Development Studies China Agricultural UniversityBeijing 100083P.R.China CGCOC Agriculture Development Co. Ltd.Beijing 100101P.R.China

Irrigation system is a scare resource in most of drought-stricken *** to manage and maintain the existing irrigation facilities in Africa is a debatable issue to both policy makers and *** facilities run by farmer cooperatives are considered ineffective,unsuccessful and dysfunctional in Tanzania by many researchers.A cooperative irrigation scheme is a mechanism that features the collective management of rural irrigation facilities by farmers'cooperative with some government intervention and external *** is an increasing emphasis on the roles of cooperative irrigation scheme in the development of the agriculture sector and poverty reduction of smallholder *** this study,the authors investigated the management and services of this scheme and analyzed its contribution to poverty reduction of smallholder rice farmers and community development in Tanzania through both quantitative and qualitative *** results showed that the scheme helped smallholder farmers increase the rice production and brought better market *** farmers'net income was also *** generated from rice farming not only improved the livelihoods of smallholder farmers but also created more employment opportunities in the rural *** research also revealed that the scheme was faced with a number of challenges due to resource and institutional constraints and low-level human capacity for both management and *** research provides a feasible approach to effective management of small-scale agricultural infrastructure for poverty reduction in Africa.

关键词： farmer cooperative irrigation rice production poverty reduction Tanzania

Transmission dynamics of onchocerciasis with two classes of infection and saturated treatment function

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International Journal of Modeling, Simulation, and Scientific Computing 2020年第5期11卷 184-207页

作者： amos Sesan Idowu Oluwatayo Michael Ogunmiloro Department of Mathematics Faculty of Physical Science University of IlorinIlorinKwara StateNigeria Department of MathematicsFaculty of Science Ekiti State UniversityAdo-EkitiEkiti StateNigeria Oluwatayo Michael

A mathematical model describing the epidemic interactions between humans and blackflies in the transmission of onchocerciasis is *** this model,the onchocerciasis infected human individuals are divided into two classes of infected humans with high and low microfilarial output incorporating saturated treatment function,which caters for high saturation of onchocerciasis *** analyze the model feasible region and obtain the basic reproduction number(r_(hb))using the next generation matrix ***,we obtain the onchocerciasis-free and onchocerciasis endemic equilibrium solutions and show that if r_(hb) is less than unity,the onchocerciasis-free equilibrium is locally and globally asymptotically ***,we employed a Lyapunov function to analyze the global asymptotic stability of the onchocerciasis—endemic equilibrium whenever rhb is greater than *** addition,data on mass drug distribution of ivermectin drug to combat onchocerciasis prevalence in Ekiti state of Nigeria were fitted to the *** results reveal that consistent annual or bi-annual distribution of ivermectin drug in the region is effective in reducing the disease *** simulations also show that public health control measures are needed to minimize infectious contact between humans and blackflies which leads to onchocerciasis infections and visual blindness.

关键词： Onchocerciasis saturated treatment function basic reproduction number stability analysis

ChatGPT is a remarkable Tool—For Experts

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Data Intelligence 2024年第1期6卷 240-296页

作者： amos Azaria rina Azoulay Shulamit reches School of Computer Science Ariel UniversityIsrael Department of Computer Science Jerusalem College of TechnologyIsrael Department of Mathematics Jerusalem College of TechnologyIsrael

This paper investigates the capabilities of ChatGPT as an automated assistant in diverse domains,including scientific writing,mathematics,education,programming,and *** explore the potential of ChatGPT to enhance productivity,streamline problem-solving processes,and improve writing ***,we highlight the potential risks associated with excessive reliance on ChatGPT in these *** limitations encompass factors like incorrect and fictitious responses,inaccuracies in code,limited logical reasoning abilities,overconfidence,and critical ethical concerns of copyright and privacy *** outline areas and objectives where ChatGPT proves beneficial,applications where it should be used judiciously,and scenarios where its reliability may be *** light of observed limitations,and given that the tool's fundamental errors may pose a special challenge for non-experts,ChatGPT should be used with a strategic *** drawing from comprehensive experimental studies,we offer methods and flowcharts for effectively using *** recommendations emphasize iterative interaction with ChatGPT and independent verification of its *** the importance of utilizing ChatGPT judiciously and with expertise,we recommend its usage for experts who are well-versed in the respective domains.

关键词： limitations utilizing Tool