Showing 1,761 - 1,780 results of 3,115 for search '"mathematical model"', query time: 0.07s Refine Results
  1. 1761

    A Theoretical Model of Listeriosis Driven by Cross Contamination of Ready-to-Eat Food Products by C. W. Chukwu, F. Nyabadza

    Published 2020-01-01
    “…In this paper, a mathematical model that takes into consideration cross contamination of Listeria monocytogenes from a food processing plant environment is formulated using a system of ordinary differential equations. …”
    Get full text
    Article
  2. 1762

    Mathematical analysis and simulations involving chemotherapy and surgeryon large human tumours under a suitable cell-kill functional response by Diego Samuel Rodrigues, Paulo Fernando de Arruda Mancera

    Published 2012-11-01
    “…Dosage and frequency of treatment schedulesare important for successful chemotherapy.However, in this work we argue that cell-kill response and tumoralgrowth should not be seen as separate and therefore are essential in a mathematical cancer model.This paper presents a mathematical model for sequencing of cancer chemotherapy andsurgery. …”
    Get full text
    Article
  3. 1763

    RESEARCH CONCAVE CIRCULAR HOLE TEMPLATE LINEAR VARIABLE THICKNESS STIFFNESS AND STRENGTH THEORIES by LI ShaoJie

    Published 2015-01-01
    “…This paper studies linear variable thickness circular aperture concave template theory of stiffness and strength calculation.First,set up mechanical model:Template for circular concave,outside the perimeter fixed; center has a round hole,inside the perimeter free,outside under uniformly distributed vertical load.Secondly,the establishment of mathematical model:Derivation of concave template in the axisymmetric condition,ordinary differential equation with variable coefficients of elastic curved surface,and gives the mathematical expressions of boundary conditions.Again,in view of the differential equation boundary value problem,the displacement method and the Matlab algorithm,it is concluded that the deflection of concave template function,and establish the stiffness calculation condition of concave template.Then,determine the concave template on the bending moment and the maximum bending moment and stress,so as to establish a concave template strength calculation conditions.Finally,numerical examples.This paper presents the function solutions,to change law of control concave template section variable parameters.In this way,not only highlight the interdependent relationship between the quantity of each,and optimization,and discussion and application.The result is suitable for uniform,continuous,isotropic material artifacts.Because in the process of calculation and data processing with error,so the formula is similar.…”
    Get full text
    Article
  4. 1764

    Principal Component Analysis in the Nonlinear Dynamics of Beams: Purification of the Signal from Noise Induced by the Nonlinearity of Beam Vibrations by A. V. Krysko, Jan Awrejcewicz, Irina V. Papkova, Olga Szymanowska, V. A. Krysko

    Published 2017-01-01
    “…The paper discusses the impact of the von Kármán type geometric nonlinearity introduced to a mathematical model of beam vibrations on the amplitude-frequency characteristics of the signal for the proposed mathematical models of beam vibrations. …”
    Get full text
    Article
  5. 1765

    Metaheuristic Algorithm for Solving Biobjective Possibility Planning Model of Location-Allocation in Disaster Relief Logistics by Farnaz Barzinpour, Mohsen Saffarian, Ahmad Makoui, Ebrahim Teimoury

    Published 2014-01-01
    “…Furthermore, an efficient solution approach based on genetic algorithm has been developed in order to solve the proposed mathematical model. The results of genetic algorithm are compared with the results provided by simulated annealing algorithm and LINGO software. …”
    Get full text
    Article
  6. 1766

    Adsorption–Desorption Cycles for the Separation of Vapour-Phase Ethanol/Water Mixtures by Krzysztof Kupiec, Jan Rakoczy, Lukasz Zieliński, Andreas Georgiou

    Published 2008-04-01
    “…The agreement between the experimental and theoretical results demonstrated that the mathematical model adequately described the process.…”
    Get full text
    Article
  7. 1767

    Investigation on Dynamic Recrystallization Behavior of Martensitic Stainless Steel by Facai Ren, Fei Chen, Jun Chen

    Published 2014-01-01
    “…The hot deformation behavior of X20Cr13 martensitic stainless steel was studied using the hot compression flow curves corresponding to the temperature range of 900–1150°C under strain rates from 0.01 to 10 s−1. A new mathematical model to estimate the flow stress under hot deformation conditions up to the peak of the flow curves was developed. …”
    Get full text
    Article
  8. 1768

    Improved DFA algorithm based on multi-dimensional finite automata by ONGYang-yang G, IUQin-rang L, ANGZhen-xi Y, HAOXiang-yu S, INGChi-qiang X, IAOHui-juan J, ENGZhi-bin P

    Published 2015-05-01
    “…Compiling multiple regular expression signatures into a combined DFA can blowup in state and storage space.Explanations from the prospective of information theory and multi-dimensional mathematical model were proposed fo-cusing on the most serious state explosion.Redundancy states were divided into zero-dimensional ones and one-dimensional ones.The former were compressed by dimension,and the later were dynamically built.The space com-plexity of the model came to the theoretical lower bound by the above methods.Then the multi-dimensional finite auto-mata (MFA) was proposed with the model.Experiments show that,the construction time taken by MFA is slightly less than XFA and is 2~3 orders of magnitude lower than DFA,STT redundancy compression algorithms and Hybrid-FA; the memory space of MFA is slightly higher than XFA,but is 1~2 orders of magnitude lower than DFA,STT redundancy compression algorithms,mDFA and Hybrid-FA; in the aspect of matching time,MFA ranks after DFA and Hybrid-FA,but ranks before XFA,and it achieves 1~2 orders of magnitude lower than that of STT redundancy compression algo-rithms and mDFA.…”
    Get full text
    Article
  9. 1769

    Investigation of Thermostressed State of Coating Formation at Electric Contact Surfacing of “Shaft” Type Parts by Olena V. Berezshnaya, Eduard P. Gribkov, Valeriy D. Kuznetsov

    Published 2016-01-01
    “…The forming of coating at electric contact surfacing is considered. The mathematical model of the coating formation is developed. …”
    Get full text
    Article
  10. 1770

    Performance Analysis of Reheat Steam Temperature Control System of Thermal Power Unit Based on Constrained Predictive Control by Xiaoli Li, Jian Liu, Kang Wang, Fuqiang Wang, Yang Li

    Published 2019-01-01
    “…Firstly, the process and mathematical model of reheat steam temperature control system are introduced. …”
    Get full text
    Article
  11. 1771

    An improved adaptive variable neighborhood search algorithm for stochastic order allocation problem by Zhenzhong Zhang, Ling Zhang, Weichun Li

    Published 2025-01-01
    “…To maximize the expected profit of order processing, a mathematical model for a high-dimensional stochastic optimization problem is developed, considering the uncertainty due to potential customer order cancellations in a real-world production. …”
    Get full text
    Article
  12. 1772

    Numerical Simulation and Analysis of Diffusion Process for the Leakages of a Tunnel LNG Pipeline by Chunyan Kong, Derong Zhang, Rong Cai, Shuangshuang Li, Rongjun Zhu

    Published 2020-01-01
    “…Taking a practical project as an example, based on the computational fluid dynamics (CFD), standard k-ε model and finite element method, a mathematical model for the diffusion due to liquefied natural gas (LNG) pipeline leakage in a tunnel was established, and the diffusion process was numerically simulated for three LNG leakage cases. …”
    Get full text
    Article
  13. 1773

    Analysis and Design of the Project Risk Management System Based on the Fuzzy Clustering Algorithm by Ping Zhong, Hang Yin, Yuanfu Li

    Published 2022-01-01
    “…The system introduces the fuzzy clustering maximum tree algorithm, and by constructing a mathematical model, combined with the empirical analysis, the key risk factors in the cost risk of power grid construction projects are identified. …”
    Get full text
    Article
  14. 1774

    Edge Computing in an IoT Base Station System: Reprogramming and Real-Time Tasks by Huifeng Wu, Junjie Hu, Jiexiang Sun, Danfeng Sun

    Published 2019-01-01
    “…This paper includes a theoretical mathematical model that demonstrates the dynamic characteristics of BSIS along with a formulation for implementing BSIS in practice. …”
    Get full text
    Article
  15. 1775

    In the Search of Fundamental Inner Bond Strength of Solid Elements by Maziar Sahba Yaghmaee, Reza Riahifar

    Published 2014-01-01
    “…Therefore, in order to study the effect of the nature of metallic bond on their physico-chemical properties, we first tried to investigate and introduce a mathematical model for transforming the bulk molar cohesion energy into microscopic bond strengths between atoms. …”
    Get full text
    Article
  16. 1776

    FPGA Implementation of Reconfigurable Finite State Machine with Input Multiplexing Architecture Using Hungarian Method by Nitish Das, P. Aruna Priya

    Published 2018-01-01
    “…The mathematical model for designing a complex digital system is a finite state machine (FSM). …”
    Get full text
    Article
  17. 1777

    Pseudoexhaustive memory testing based on March A type march tests by V. N. Yarmolik, I. Mrozek, S. V. Yarmolik

    Published 2020-06-01
    “…The applicability of the mathematical model of the combinatorial problem of the coupon collector for describing multiple memory testing is substantiated. …”
    Get full text
    Article
  18. 1778

    Impact of media coverage on the transmission dynamics of TB with vaccines and treatment. by Kumneger Tadesse Mulugeta, Mohammed Yiha Dawed, Shewafera Wondimagegnhu Teklu

    Published 2025-01-01
    “…The main objective of this study is to investigate the impact of media coverage on the transmission dynamics of TB with vaccine and treatment strategy using mathematical model analysis. In the qualitative analysis of the proposed model we proved the existence, uniqueness, positivity, and boundedness of the model solutions, investigated both the disease-free and endemic equilibrium points, computed the basic and effective reproduction numbers using next generation matrix approach, analyzed the stability analysis of the equilibrium points, the backward bifurcation using the Castillo-Chavez and Song theorem and we re-formulated the corresponding optimal control problem and analyzed by applying the Pontryagin's Minimum Principle. …”
    Get full text
    Article
  19. 1779

    ANALYSIS OF DYNAMIC CHARACTERISTICS OF SPHERICAL HYBRID SLIDING BEARINGS BASED ON ORIFICE THROTTLING (MT) by CHEN YuFei, SHEN JingFeng, ZHOU YiHao

    Published 2023-01-01
    “…Taking the spherical sliding bearings with orifice throttling as the research object, the mathematical model of lubrication of spherical hybrid sliding bearings is established and the Reynolds equation under laminar flow state is deduced from this model. …”
    Get full text
    Article
  20. 1780

    Process Optimization for Acid Hydrolysis and Characterization of Bioethanol from Leftover Injera Waste by Using Response Surface Methodology: Central Composite Design by Abreham Bekele Bayu, Temesgen Abeto Amibo, Surafel Mustefa Beyan

    Published 2022-01-01
    “…For this analysis, the mathematical model equation was developed and the R2 value was 99.9% and its desirability was 0.8867. …”
    Get full text
    Article