Results 21 to 30 of about 95 (50)

An imperialist competitive algorithm for the winner determination problem in combinatorial auction [PDF]

open access: yes, 2015
Winner Determination problem (WDP) in combinatorial auction is an NP-complete problem. The NP-complete problems are often solved by using heuristic methods and approximation algorithms.
Balafar, Mohammad Ali   +2 more
core   +4 more sources

Point defects and interstitial climb of 90° partial dislocations in brown type IIa natural diamond [PDF]

open access: yes, 2020
Multiple electron microscopy techniques have been used to study a brown type IIa natural diamond. Electron backscatter diffraction shows evidence of plastic deformation in the form of slip bands, while cathodoluminescence reveals a network of low-angle ...
Beanland, Richard   +3 more
core   +1 more source

Comparative assessment of the co-evolution of environmental indicator systems in Japan and China [PDF]

open access: yes, 2012
This paper analyzes the evolution of environmental policies and the related indicator systems that have been introduced in both Japan and China. The findings reveal that the lack of both natural resources and space for the final disposal of wastes ...
HARA Keishiro   +3 more
core   +1 more source

Parsimony and the Fisher-Wright Debate [PDF]

open access: yes, 2004
In the past five years, there have been a series of papers in the journal Evolution debating the relative significance of two theories of evolution, a neo-Fisherian and a neo-Wrightian theory, where the neo-Fisherians make explicit appeal to parsimony ...
Plutynski, A
core   +5 more sources

パソコンを使用した流れ場の画像処理システムの開発 [PDF]

open access: yes, 1989
applicationA digital image processing system for the flow field is developed using a personal computer, not general purpose computer. Specially the purpose of this work is the analysis for the two dimensional flow field in the rotating cylinders (Taylor ...
1150   +3 more
core  

Economic Determinants of Invasion and Discovery of Nonindigenous Insects [PDF]

open access: yes
Introductions of nonindigenous organisms into the United States have been linked to international trade. The individual contributions of imports, immigration, and international travel, however, are poorly understood because introduction dates are ...
Hlasny, Vladimir, Livingston, Michael J.
core   +1 more source

The design of a drum memory system [PDF]

open access: yes, 1967
Three methods for obtaining an auxiliary memory for an SCC-650 (Scientific Control Corporation) digital computer are presented. A logic design is then developed on the basis of using the drum and write circuits from an available IBM-650 digital computer ...
Lynch, Frederick W.
core   +1 more source

Winner Determination in Combinatorial Auctions using Hybrid Ant Colony Optimization and Multi-Neighborhood Local Search [PDF]

open access: yes, 2017
A combinatorial auction is an auction where the bidders have the choice to bid on bundles of items. The WDP in combinatorial auctions is the problem of finding winning bids that maximize the auctioneer’s revenue under the constraint that each item can be
M. B. Dowlatshahi, V. Derhami
core   +1 more source

Computing the topology of a plane or space hyperelliptic curve [PDF]

open access: yes, 2020
International audienceWe present algorithms to compute the topology of 2D and 3D hyperelliptic curves. The algorithms are based on the fact that 2D and 3D hyperelliptic curves can be seen as the image of a planar curve (the Weierstrass form of the curve),
Alcázar, Juan,   +3 more
core   +4 more sources

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