Results 31 to 40 of about 3,465,725 (297)

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

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

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

Automatic optical depth parametrization in radiative transfer model RTTOV v13 via LASSO-induced sparsity [PDF]

open access: yesGeoscientific Model Development
The assimilation of satellite spectral sounder data requires fast and accurate radiative transfer models. This study proposes a novel methodology to automatically parameterize atmospheric optical depths within the Radiative Transfer for TOVS (RTTOV ...
F. Vargas Jiménez   +3 more
doaj   +1 more source

An Efficient MQ-Signature Scheme Based on Sparse Polynomials

open access: yesIEEE Access, 2020
Multivariate quadratic (MQ) equations-based cryptography is one of the most promising alternatives for currently used public-key cryptographic algorithms in the post-quantum era.
Kyung-Ah Shim   +2 more
doaj   +1 more source

Essays on Mathematical Geography

open access: yes, 1986
A collection of essays intended to show the range of power in applying pure mathematics to human systems. There are two types of essay: those which employ tranditional mathematical proof, and those which do not.
Arlinghaus, Sandra Lach
core   +6 more sources

Short-Term Hydrothermal Scheduling With Solar and Wind Farms Using Second-Order Cone Optimization With Chance-Box Constraints

open access: yesIEEE Access, 2021
Short-Term Hydrothermal Scheduling (STHS) is a classic problem in power system operation where the aim is to decide the dispatch of both thermal and hydroelectric units.
Juan Camilo Castano   +2 more
doaj   +1 more source

Tasks of practical content as a means of qualitative mathematical training of education seekers

open access: yesНауковий Вісник Південноукраїнського Національного Педагогічного Університету імені К. Д. Ушинського
In recent years, interest in mathematics among secondary school students in Ukraine has decreased significantly. In the conditions of active development of information technologies in the world knowledge of mathematics, logical thinking and analytical ...
Bilichenko Roman   +3 more
doaj   +1 more source

New heuristic local search method for university course timetabling [PDF]

open access: yesمدیریت نوآوری و راهبردهای عملیاتی
Purpose: This paper presents a new two-phase method for solving the curriculum-based university course timetabling problem. A new metaheuristic approach is used in both phases of the new present method.Methodology: A feasible, high-quality solution is ...
Mohammad Sadegh Shiri   +2 more
doaj   +1 more source

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