Results 11 to 20 of about 114,515 (199)

Parametric Estimation of Diffusion Processes: A Review and Comparative Study

open access: yesMathematics, 2021
This paper provides an in-depth review about parametric estimation methods for stationary stochastic differential equations (SDEs) driven by Wiener noise with discrete time observations.
Alejandra López-Pérez   +2 more
doaj   +1 more source

Dynamic Shortest Paths Methods for the Time-Dependent TSP

open access: yesAlgorithms, 2021
The time-dependent traveling salesman problem (TDTSP) asks for a shortest Hamiltonian tour in a directed graph where (asymmetric) arc-costs depend on the time the arc is entered.
Christoph Hansknecht   +2 more
doaj   +1 more source

Dynamical Analysis for the Hybrid Network Model of Delayed Predator-Prey Gompertz Systems with Impulsive Diffusion between Two Patches

open access: yesDiscrete Dynamics in Nature and Society, 2020
In this paper, we consider a hybrid network model of delayed predator-prey Gompertz systems with impulsive diffusion between two patches, in which the patches represent nodes of the network such that the prey population interacts locally in each patch ...
Li Xiang   +4 more
doaj   +1 more source

Optimized and Personalized Phlebotomy Schedules for Patients Suffering From Polycythemia Vera

open access: yesFrontiers in Physiology, 2020
Polycythemia vera (PV) is a slow-growing type of blood cancer, where the production of red blood cells (RBCs) increase considerably. The principal treatment for targeting the symptoms of PV is bloodletting (phlebotomy) at regular intervals based on data ...
Patrick Lilienthal   +4 more
doaj   +1 more source

On the stabilization of a coupled fractional ordinary and partial differential equations† [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2020
We investigate the stabilization problem of a cascade of a fractional ordinary differential equation (FODE) and a fractional diffusion (FD) equation, where the interconnections are of Neumann type.
S. Amiri, M. Keyanpour
doaj   +1 more source

Integer programming for optimal yaw control of wind farms [PDF]

open access: yesWind Energy Science
It is well-known that wakes caused by wind turbines within a wind farm negatively impact the power generation and mechanical load of downstream turbines. This is already partially considered in the farm layout.
F. Bestehorn   +6 more
doaj   +1 more source

New Results on Generalized Graph Coloring [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2004
For graph classes \wp_1,...,\wp_k, Generalized Graph Coloring is the problem of deciding whether the vertex set of a given graph G can be partitioned into subsets V_1,...,V_k so that V_j induces a graph in the class \wp_j (j=1,2,...,k).
Vladimir E. Alekseev   +2 more
doaj   +1 more source

Pharmacokinetic–pharmacodynamic modeling of maintenance therapy for childhood acute lymphoblastic leukemia

open access: yesScientific Reports, 2023
In the treatment of childhood acute lymphoblastic leukemia (ALL), current protocols combine initial high-dose multiagent chemotherapy with prolonged oral therapy with 6-mercaptopurine (6MP) and low-dose methotrexate (MTX) maintenance therapy.
Anna Gebhard   +7 more
doaj   +1 more source

Statistical Modelling by Topological Maps of Kohonen for Classification of the Physicochemical Quality of Surface Waters of the Inaouen Watershed Under Matlab

open access: yesJournal of Nigerian Society of Physical Sciences, 2022
Self-organizing maps (SOMs) and other artificial intelligence approaches developed by Kohonen can be used to model and solve environmental challenges. To emphasize the classification of Physico-chemical parameters of the Inaouen watershed, we presented ...
RACHID EL CHAAL, M. O. Aboutafail
doaj   +1 more source

Providing a mathematical optimization model for the multi-product supply chain despite the possibility of supplier disruption under sanctions (Case Study of Refinery Repair Industries) [PDF]

open access: yesمجله مدل سازی در مهندسی, 2020
In this study, an optimized mathematical model for a multi-product supply chain with the possibility of supplier disruption under sanctions is presented. A supply chain involves the alignment of companies that market products or services.
Amir Rahimimanesh   +2 more
doaj   +1 more source

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