Results 21 to 30 of about 1,970,865 (281)

Proximal bundle method for contact shape optimization problem [PDF]

open access: yes, 2017
From the mathematical point of view, the contact shape optimization is a problem of nonlinear optimization with a specific structure, which can be exploited in its solution. In this paper, we show how to overcome the difficulties related to the nonsmooth
Beremlijski, Petr, Plívová, Nikola
core   +2 more sources

Spectral optimization problems [PDF]

open access: yesRevista Matemática Complutense, 2011
In this survey paper we present a class of shape optimization problems where the cost function involves the solution of a PDE of elliptic type in the unknown domain. In particular, we consider cost functions which depend on the spectrum of an elliptic operator and we focus on the existence of an optimal domain.
openaire   +4 more sources

Optimization of through-bolt steel beam connection to CFST column reinforced with rib plates using RSM method and MCEO algorithm [PDF]

open access: yesNumerical Methods in Civil Engineering, 2021
Today, one of the most important engineering requirements is to ensure optimal design with best possible seismic performance of structures. To this end, the present paper aims to apply the optimization process for the design of the through-bolt steel ...
Khadijeh Ghanbari Soumeh   +1 more
doaj   +1 more source

OPTIMAL WEIGHING PROBLEMS

open access: yesJournal of the Operations Research Society of Japan, 1989
The false coin problem is stated as: You are given a balance and N coins (N\(\geq 3)\). N-1 coins are equal in weight, but the N-th is defective, and weighs somewhat more or less than each of the other N-1 coins. Devise a procedure to determine, in the minimum number of weighings, which is the false coin, and whether it is lighter or heavier than the ...
Hirokawa, Sumio, Wakuta, Kazuyoshi
openaire   +3 more sources

A Study on Wireless Charging for Prolonging the Lifetime of Wireless Sensor Networks

open access: yesSensors, 2017
Wireless charging is an important issue in wireless sensor networks, since it can provide an emerging and effective solution in the absence of other power supplies.
Weijian Tu   +3 more
doaj   +1 more source

Robust Adaptive Beamforming for General-Rank Signal Model with Positive Semi-Definite Constraint via POTDC [PDF]

open access: yes, 2012
The robust adaptive beamforming (RAB) problem for general-rank signal model with an additional positive semi-definite constraint is considered. Using the principle of the worst-case performance optimization, such RAB problem leads to a difference-of ...
Khabbazibasmenj, Arash   +1 more
core   +1 more source

Optimizing the Capacity of Cognitive Radio Networks with Power Control and Variable Spectrum Allocation

open access: yesTransport and Telecommunication, 2018
Cognitive Radio Networks (CRN) were introduced as a means to more efficiently reuse the licensed radio frequency spectrum. One of their salient features is the ability of unlicensed nodes to dynamically adapt their radio parameters according to their ...
Benghabrit Nawel, Kaddour Mejdi
doaj   +1 more source

Toward solving the sign problem with path optimization method [PDF]

open access: yes, 2017
We propose a new approach to circumvent the sign problem in which the integration path is optimized to control the sign problem. We give a trial function specifying the integration path in the complex plane and tune it to optimize the cost function which
Kashiwa, Kouji   +2 more
core   +2 more sources

Convex Combinatorial Optimization [PDF]

open access: yes, 2003
We introduce the convex combinatorial optimization problem, a far reaching generalization of the standard linear combinatorial optimization problem. We show that it is strongly polynomial time solvable over any edge-guaranteed family, and discuss several
Onn, Shmuel, Rothblum, Uriel G.
core   +4 more sources

Solution of the inverse problem of tracer tests interpretation results for oil reservoirs in the presence of low resistance channels

open access: yesВестник Самарского университета: Естественнонаучная серия
Tracer tests of oil reservoirs have become widely used to assess the parameters of low resistance channels, leading to premature increasing of production water cut.
Konstantin M. Fedorov   +4 more
doaj   +1 more source

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