Results 11 to 20 of about 447 (181)

Multicriterial Fractional Optimization [PDF]

open access: yes, 2005
At first we introduce different solution concepts for general vector optimization problems and summarize some relations between them. Further, we apply these solution concepts to vectorial fractional optimization problems and show that the well-known Dinkelbach-transformation can be generalized in the sense, that even in vector optimization exact as ...
Tammer, Klaus   +2 more
openaire   +2 more sources

Optimización multicriterial del diseño del cuerpo de los cilindros oleohidráulicos. // Multicriterial optimization design of oleohydraulic cylinders bodies.

open access: yesIngeniería Mecánica, 2003
En el trabajo se realiza un análisis multicriterial dirigido a la optimización de las dimensiones radiales del cuerpo de loscilindros oleohidráulicos teniendo en cuenta la resistencia mecánica a la explosión, la rigidez en la dirección radial y elpeso ...
V. G. Gómez Rodríguez   +2 more
doaj   +1 more source

METHODS OF MULTI-CRITERIA OPTIMIZATION IN PLANNING NETWORKS OF MOBILE COMMUNICATION

open access: yesInformation and Telecommunication Sciences, 2014
The features of the use of multi-criteria optimization methods to solve design problems of mobile communication networks are considered. The article is aimed to solve the relevant scientific and applied problem of planning and optimization of cellular ...
Valerii Bezruk, Daryna Сhebotarova
doaj   +2 more sources

Automated planning through robust templates and multicriterial optimization for lung VMAT SBRT of lung lesions. [PDF]

open access: yesJ Appl Clin Med Phys, 2020
Abstract Purpose To develop and validate a robust template for VMAT SBRT of lung lesions, using the multicriterial optimization (MCO) of a commercial treatment planning system. Methods The template was established and refined on 10 lung SBRT patients planned for 55 Gy/5 fr.
Marrazzo L   +9 more
europepmc   +2 more sources

Multicriterial optimization of preventive maintenance of informational/technical stochastic system

open access: yesITM Web of Conferences, 2016
The problem of optimization of reliability and economical indexes is solved for informational/technical system with periodical diagnostics and restoration. The system considered is the one with users accesses and errors occurring.
Kovalenko Anna, Rogachev Gennady
doaj   +2 more sources

Fully automated treatment planning for MLC-based robotic radiotherapy. [PDF]

open access: yesMed Phys, 2021
Purpose To propose and validate a fully automated multicriterial treatment planning solution for a CyberKnife® equipped with an InCiseTM 2 multileaf collimator. Methods The AUTO BAO plans are generated using fully automated prioritized multicriterial optimization (AUTO MCO) of pencil‐beam fluence maps with integrated noncoplanar beam angle optimization
Schipaanboord BWK   +5 more
europepmc   +2 more sources

Validation of knowledge-based and multicriterial optimization assistive auto-planning algorithms for prostate VMAT radiotherapy using biological optimization. [PDF]

open access: yesJ Appl Clin Med Phys
Abstract Purpose External beam radiotherapy for cancer treatment historically has faced the challenge of delivering sufficient dose to the target while minimizing dose to critical organs. Inverse planning techniques in modulated therapy can improve organ‐at‐risk (OAR) sparing but require significant human resources and can depend on planner experience.
Boonzaier WPE, Strauss LJ.
europepmc   +2 more sources

Dosimetric accuracy of low dose rate volumetric modulated arc therapy delivery in an Elekta Versa HD linear accelerator for pulsed low dose rate treatment of recurrent high-grade glioma using Monaco planning system: Low dose rate VMAT-based PLDR in Elekta Linac. [PDF]

open access: yesJ Appl Clin Med Phys
Abstract Background and purpose Reducing the dose rate enhances efficacy in radiation therapy by allowing increased repair of sub‐lethal damage. Pulsed low‐dose radiation therapy (PLDR) is an innovative approach that is safe and effective for the reirradiation of recurrent gliomas and radioresistant tumors.
Jagadeesan S, Chamundeeswari SPV.
europepmc   +2 more sources

A quantitative FLASH effectiveness model to reveal potentials and pitfalls of high dose rate proton therapy. [PDF]

open access: yesMed Phys, 2022
Abstract Purpose In ultrahigh dose rate radiotherapy, the FLASH effect can lead to substantially reduced healthy tissue damage without affecting tumor control. Although many studies show promising results, the underlying biological mechanisms and the relevant delivery parameters are still largely unknown.
Krieger M   +8 more
europepmc   +2 more sources

A plan template-based automation solution using a commercial treatment planning system. [PDF]

open access: yesJ Appl Clin Med Phys, 2020
Abstract Purpose The purpose of this study was to develop an auto‐planning platform to be interfaced with a commercial treatment planning system (TPS). The main goal was to obtain robust and high‐quality plans for different anatomic sites and various dosimetric requirements. Methods Monaco (Elekta, St. Louis, US) was the TPS in this work.
Huang X   +5 more
europepmc   +2 more sources

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