Results 41 to 50 of about 3,175,486 (148)

Motion planning and control of an installation robot for attitude adjustment of arc parts in underground shield tunneling

Deep Underground Science and Engineering, EarlyView.
Inspired by spiders, the multilegged walk‐through assembling robot for arc parts achieves high‐precision synchronous control under heavy loads through dual‐layer hydraulic pose dynamics modeling and hierarchical pressure optimization, significantly enhancing shield tunneling assembly efficiency and precision.
Quan Xiao, Guofei Xiang, Liang Liao, Lai Wei, Hongli Wang, Songyi Dian   +5 more
wiley   +1 more source

Stability analysis of fast food consumption dynamics using a fractional-order framework [PDF]

Iranian Journal of Numerical Analysis and Optimization
In this research, we propose a novel fractional-order model, referred to as \( PLSCQ \), which is designed to capture the dynamics of fast food consumption and its impact on both health and social behavior.
issam sahib, mohamed baroudi, hicham gourram, bouchaib khajji, abderrahim labzai, mohamed belam   +5 more
doaj   +1 more source

Discretization Fractional-Order Biological Model with Optimal Harvesting

Abstract and Applied Analysis, 2022
In this paper, a discretization of a three-dimensional fractional-order prey-predator model has been investigated with Holling type III functional response. All its fixed points are determined; also, their local stability is investigated.
Barhoom Noor S. Sh., Sadiq Al-Nassir
doaj   +1 more source

Investigating Tuberculosis Dynamics Under Various Control Strategies: A Comprehensive Analysis Using Real Statistical Data

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In the present investigation, a mathematical model with vaccination, treatment, and environmental impact under real data is presented. Initially, we present the model without any interventions, followed by an examination of its equilibrium points.
Bashir Al‐Hdaibat, Mahmoud H. DarAssi, Irfan Ahmad, Muhammad Altaf Khan, Reem Algethamie   +4 more
wiley   +1 more source

Mathematical modeling and optimal control strategies of the typhoid transmission with cost-effectiveness analysis [PDF]

Iranian Journal of Numerical Analysis and Optimization
This paper presents the development of a sophisticated mathematical model aimed at optimizing the control of typhoid fever in Taiwan. The model incorporates key factors influencing transmission dynamics, including human interactions, exposure to ...
OUBOUSKOUR Khadija, Sofiane KHASSAL, Bouchaib KHAJJI, Omar BALATIF   +3 more
doaj   +1 more source

Robust Mean–Variance Portfolio Optimization: Mean–Variance–Variance Criterion Versus Mean–Variance–Standard Deviation Criterion

Mathematical Finance, EarlyView.
ABSTRACT We study a dynamic portfolio optimization problem under the mean–variance–variance (M‐V‐V) criterion proposed by Maccheroni et al. It is an analogue of the Arrow–Pratt approximation to the well‐known smooth ambiguity model. Under the standard Black–Scholes framework, we derive fully explicit equilibrium investment strategies in which a DM's ...
David Landriault, Bin Li, Yuanyuan Zhang
wiley   +1 more source

The COVID-19 Model with Partially Recovered Carriers

Journal of Applied Mathematics, 2021
Novel coronavirus (COVID-19) has been spreading and wreaking havoc globally, despite massive efforts by the government and World Health Organization (WHO).
T. S. Faniran, E. A. Bakare, A. O. Falade   +2 more
doaj   +1 more source

An Optimal Control Framework for Multi‐Species Harvesting in the Southern Black Sea

Natural Resource Modeling, Volume 39, Issue 4, November 2026.
ABSTRACT The management of marine fisheries requires balancing ecological sustainability with economic profitability, particularly in ecosystems vulnerable to overexploitation. This study develops a multi‐species optimal control modeling framework for the southern Black Sea, focusing on three key species: horse mackerel (Trachurus mediterraneus) as ...
Maruf A. Lawal, Mahir Demir, Michael R. Kelly, Suzanne Lenhart   +3 more
wiley   +1 more source

Toward Optimal After‐Growth Cooling of a Single Crystal

Crystal Research and Technology, Volume 61, Issue 10, October 2026.
A novel and computationally efficient approach to generate optimal after‐growth cooling profiles is presented Optimal strategies for after‐growth cooling of a single crystal are computed for idealized cooling profiles. General scaling laws for maximum cooling rate and total cooling time as function of material and crystal properties are found ...
Markus Zenk, Daniel‐Sebastian Nastasa, Olga Mula, Jeffrey J. Derby, Jochen Friedrich   +4 more
wiley   +1 more source

Weak maximum principle for optimal control problems of nonsmooth systems

, 2011
In this paper, by considering vector-valued maximum type functions satisfying Lipschitz condition, and optimal control systems with continuous-time which is governed by systems of ordinary differential equation, we derive results similar to Pontryagin's ...
Serkan Ilter, Ilter, Serkan
core   +1 more source