Showing 801 - 820 results of 2,218 for search '"mathematical models"', query time: 0.05s Refine Results
  1. 801

    Power Spectral Density Conversions and Nonlinear Dynamics by Mostafa Rassaian

    Published 1994-01-01
    “…To predict the vibration environment of a payload carried by a ground or air transporter, mathematical models are required from which a transfer function to a prescribed input can be calculated. …”
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    Article
  2. 802

    Application of Artificial Neural Networks and Adaptive Neuro-Fuzzy Inference Systems to Predict Activated Carbon Properties for Methane Storage by Ali Ahmadpour, Neda Jahanshahi, Sajjad Rashidi, Naser Chenarani, Mohammad Jaber Darabi Mahboub

    Published 2014-04-01
    “…However, because of complex relations between independent and dependent variables, the proposed statistical and mathematical models are not satisfactory. In this paper, the specifications of some ACs synthesized by chemical activation methods are predicted. …”
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    Article
  3. 803

    Chip Thickness and Microhardness Prediction Models during Turning of Medium Carbon Steel by S. A. Alrabii, L. Y. Zumot

    Published 2007-01-01
    “…Chips were collected at different machining conditions and thickness and microhardness measurements taken and analyzed using “DESIGN EXPERT 7” experimental design software. Mathematical models of the responses (thickness and microhardness) as functions of the conditions (speed, feed, and depth of cut) were obtained and studied. …”
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    Article
  4. 804

    Analysis of the Severity of Accidents on Rural Roads Using Statistical and Artificial Neural Network Methods by Mohammad Habibzadeh, Pooyan Ayar, Mohammad Hassan Mirabimoghaddam, Mahmoud Ameri, Seyede Mojde Sadat Haghighi

    Published 2023-01-01
    “…Finally, the performance of the proposed models was validated utilizing other mathematical models. As a result, putting the output results together, the best measures can be suggested to increase the safety of people on rural roads. …”
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    Article
  5. 805

    Water Quality Analysis for the Depletion of Dissolved Oxygen due to Exponentially Increasing Form of Pollution Sources by N. Manitcharoen, B. Pimpunchat, P. Sattayatham

    Published 2020-01-01
    “…Analyzing and improving mathematical models for water quality investigation are imperative for water quality issues around the world. …”
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    Article
  6. 806

    Effects of the Hot Alignment of a Power Unit on Oil-Whip Instability Phenomena by A. Vania, P. Pennacchi

    Published 2010-01-01
    “…By including these bearing coefficients in a mathematical model of the fully assembled machine, the real part of the eigenvalue associated with the first balance resonance of the generator rotor became positive. …”
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  7. 807

    Influence of Concrete Creep on the Bending of a Prestressed Bridge Beam by Petr P. Gaidzhurov, Elvira R. Iskhakova, Nina A. Saveleva

    Published 2023-07-01
    “…Moreover, there are no mechanic-mathematical models of hereditary type oriented to the finite-element method.The concept of modelling of long-term deformation of reinforced concrete structures in a three-dimensional statement, based on the use of the integral deformation modulus of concrete, does not allow one to carry out designing considering the technological prehistory. …”
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    Article
  8. 808

    Solving Advection Equations by Applying the Crank-Nicolson Scheme Combined with the Richardson Extrapolation by Zahari Zlatev, Ivan Dimov, István Faragó, Krassimir Georgiev, Ágnes Havasi, Tzvetan Ostromsky

    Published 2011-01-01
    “…Advection equations appear often in large-scale mathematical models arising in many fields of science and engineering. …”
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  9. 809

    Protocols for translocation processes of flexible polymers through a pore using LAMMPS by Vrinda Garg, Rejoy Mathew, Arindam Chatterjee, Surya K. Ghosh

    Published 2025-03-01
    “…This protocol has potential applications in developing mathematical models for DNA sequencing, controlled drug delivery, and cellular transport processes.For complete details on the use and execution of this protocol, please refer to Garg et al.1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.…”
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  10. 810

    Market-based pricing for road freight transportation by A. A. Aksentev

    Published 2022-01-01
    “…Statistically significant factors have been highlighted, and mathematical models have been constructed. The influence of fictitious variables (body type) that improve the quality of the calculated values has been noted. …”
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    Article
  11. 811
  12. 812

    Optimal control applied to vaccination and treatmentstrategies for various epidemiological models by Holly Gaff, Elsa Schaefer

    Published 2009-05-01
    “…Mathematical models provide a powerful tool for investigating thedynamics and control of infectious diseases, but quantifying theunderlying epidemic structure can be challenging especially for newand under-studied diseases.Variations of standard SIR, SIRS, and SEIR epidemiologicalmodels are considered to determine the sensitivity of these models tovarious parameter values that may not be fully known when the models areused to investigate emerging diseases. …”
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  13. 813

    An elementary approach to modeling drug resistance in cancer by Cristian Tomasetti, Doron Levy

    Published 2010-09-01
    “…In this work we consider the problem ofdrug resistance in cancer, focusing on random genetic point mutations.Most previous works on mathematical models of such drug resistancehave been based on stochastic methods. …”
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  14. 814

    Questions from the fourth son: A clinician reflects on immunomonitoring, surrogate markers and systems biology by Charles Wiseman, M.D.

    Published 2011-03-01
    “…The development of mathematical models from empirical data may help inform the clinician/scientist about underlying mechanisms and help frame new testable hypotheses.…”
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  15. 815

    The Effects of Poverty on Health Outcomes in Nigeria: An ARDL Approach by Abdulrahman Abdulganiyu Idris

    Published 2023-01-01
    “…In order to simulate how poverty affects health outcomes in Nigeria, the study utilized mathematical models to determine whether Nigeria health results (CO2 emission, patients per physician, life expectancy rate, and poverty rate) responds to poverty shock. …”
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  16. 816

    Hidden Attractors in Chaotic Systems with Nonlinear Functions by Safara Bibi, Juan Hugo García López, Rider Jaimes-reategui, Hafiz Muhammad Zeeshan, Guillermo Huerta-cuellar

    Published 2024-06-01
    “…These attractors can arise in various mathematical models, such as the Lorenz system, Rössler system, or Chua's circuit. …”
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  17. 817

    How and why do neurons generate complex rhythms with various frequencies? by Teresa Ree Chay, Young Seek Lee

    Published 1998-01-01
    “…In the first part of this review, we illustrate that such rhythms can be generated from simple yet elegant mathematical models. Chaos embedded in rhythmic activity has interesting characteristics that are not seen in other physical systems. …”
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  18. 818

    The analysis of losses in protected and non-insulated wires in stationary modes, taking into account weather conditions by E. V. Petrova, S. S. Girshin, V. A. Krivolapov, K. V. Khatsevskiy, V. N. Goryunov, V. M. Trotsenko

    Published 2024-09-01
    “…On the other hand, the presence of insulation requires the development of more complex mathematical models to adequately describe their behavior and study the characteristics of new wires during operation. …”
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  19. 819

    A toxin-mediated size-structured population model: Finite difference approximation and well-posedness by Qihua Huang, Hao Wang

    Published 2016-04-01
    “…The question of the effects of environmental toxins on ecological communities is of great interest from both environmental and conservational points of view. Mathematical models have been applied increasingly to predict the effects of toxins on a variety of ecological processes. …”
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  20. 820

    Measuring. Monitoring. Management. Control by B.V. Chuvykin, I.A. Dolgova, G.V. Milovzorov

    Published 2024-12-01
    “…To solve the problem, the methods of the mathematical apparatus of the theory of integer functions of exponential type, the theory of wavelets or mathematical models in the time domain were used. When applying these methods, the restoration of the distorted amplitude of pulsed information signals depending on the frequency-time properties of the signals is carried out at the stage of digital processing of the measuring signal by solving systems of linear equations. …”
    Article