Results 221 to 230 of about 15,952 (266)

Orthogonal Bases of ℝ³ with Integer Coordinates and Integer Lengths

The American Mathematical Monthly, 1989
(1989). Orthogonal Bases of ℝ3 with Integer Coordinates and Integer Lengths. The American Mathematical Monthly: Vol. 96, No. 1, pp. 49-53.
Anthony Osborne, Hans Liebeck
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Transit Coordination Using Integer-Ratio Headways

IEEE Transactions on Intelligent Transportation Systems, 2014
Coordination of transit routes is essential in reducing the travel time for connecting passengers, thus improving the service quality of the transit system. Perfect coordination can be achieved through the usage of common headways; however, this leads to an increase in operational costs, particularly when the variance of route headways is high. In this
Dilek Tuzun Aksu, Ugur Akyol
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Hydrothermal coordination using modified mixed integer hybrid differential evolution

International Journal of Energy Technology and Policy, 2007
This work presents a novel modified Mixed Integer Hybrid Differential Evolution (MIHDE) algorithm, for solving the unit commitment problem of a hydrothermal power system. Hydrothermal scheduling involves the optimisation of a non-linear objective function with a set of system and hydraulic constraints.
L. Lakshminarasimman, S. Subramanian
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The blockwise coordinate descent method for integer programs

Mathematical Methods of Operations Research, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sven Jäger, Anita Schöbel
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A Note on Transit Coordination Using Integer-Ratio Headways

IEEE Transactions on Intelligent Transportation Systems, 2016
Recently, in a paper published in IEEE Transactions on Intelligent Transportation Systems , the authors proposed a genetic algorithm-based solution approach to the transit coordination problem using integer-ratio headways. This note provides more accurate mathematical formulations of the cost components of the objective functions considered in the ...
Tao Liu, Avishai Ceder
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Segmental Offset-Mapping Parallel Coordinates for Multidimensional Integer Dataset

2017 13th International Conference on Computational Intelligence and Security (CIS), 2017
To visualize and analysis the multidimensional integer dataset, we present a visualization method named segmental offset-mapping parallel coordinates. The method first counted and calculated the proportion of each integer value in each dimension. The stacked coordinate axis was adopted to express the distribution of data in each dimension.
Hui Li, Qin He, Hong Bao, Nan Ma, Guilin Pang   +4 more
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Coordinating independent buyers with integer‐ratio time coordination and quantity discounts

Naval Research Logistics (NRL), 2003
AbstractSupply chain members can gain substantial benefits by coordinating their activities. However, a remaining challenge is to create useful coordination mechanisms when channel members are independent. This paper develops a coordination strategy with which a supplier uses quantity discounts to entice independent buyers to comply with an integer ...
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Optimal Coordination of Overcurrent Relays Using Mixed Integer Linear Programming

IEEE Latin America Transactions, 2016
In distribution systems, the coordination and selectivity of protections are essential for improving reliability and security indicators. In these systems, the overcurrent relays are widely used. During a fault, the heat dissipation is high. Therefore, it is important that the relays act quickly.
A.A. Kida, L.A. Gallego
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Online coordination of directional overcurrent relays using binary integer programming

Electric Power Systems Research, 2015
Abstract This work presents a binary programming model for online coordination of directional overcurrent relay problems in interconnected power distribution and subtransmission systems. The proposed model considers discrete time dial and pickup current settings as in microprocessor-based relays.
Rafael Corrêa, Ghendy Cardoso, Olinto C.B. de Araújo, Lenois Mariotto   +3 more
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Partitioning a Set of Vectors with Nonnegative Integer Coordinates Using Logical Hardware

Cybernetics and Systems Analysis, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kryvyi, S. L., Opanasenko, V. M.
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