Results 31 to 40 of about 563,494 (247)

M-Theory on S^1/Z_2 : New Facts from a Careful Analysis

open access: yes, 2000
We carefully re-examine the issues of solving the modified Bianchi identity, anomaly cancellations and flux quantization in the S^1/Z_2 orbifold of M-theory using the boundary-free "upstairs" formalism, avoiding several misconceptions present in earlier ...
Adel Bilal   +25 more
core   +1 more source

Parametric Integer Programming: The Right-Hand-Side-Case [PDF]

open access: yes, 1975
A family of integer programs is considered whose right-hand-sides lie on a given line segment L. This family is called a parametric integer program(PIP). Solving a (PIP) means finding an optimal solution for every program in the family. It is shown how a
Marsten, Roy E., Morin, Thomas L.
core   +2 more sources

Small systems of Diophantine equations which have only very large integer solutions

open access: yes, 2011
Unchanged text, the conjecture with the bound 2^(2^(n-1)) is false, see http://dx.doi.org/10.13140/2.1.1707.2640 arXiv admin note: substantial text overlap with arXiv:0901 ...
openaire   +4 more sources

Day-ahead Network-constrained Unit Commitment Considering Distributional Robustness and Intraday Discreteness: A Sparse Solution Approach

open access: yesJournal of Modern Power Systems and Clean Energy, 2023
Quick-start generation units are critical devices and flexible resources to ensure a high penetration level of renewable energy in power systems. By considering the wind uncertainty and both binary and continuous decisions of quick-start generation units
Xiaodong Zheng   +6 more
doaj   +1 more source

New Perspective on the Conventional Solutions of the Nonlinear Time-Fractional Partial Differential Equations

open access: yesComplexity, 2020
The role of integer and noninteger order partial differential equations (PDE) is essential in applied sciences and engineering. Exact solutions of these equations are sometimes difficult to find.
Hijaz Ahmad   +4 more
doaj   +1 more source

Optimization Models for Reducing Off-Cuts of Raw Materials in Construction Site

open access: yesMathematics, 2022
More than ten billion tons of construction waste are generated every year in the world. The large volume of construction waste not only increases costs for contractors, but also poses a threat to the environment.
Haoqing Wang, Wen Yi
doaj   +1 more source

Near-Optimal Detection in MIMO Systems using Gibbs Sampling [PDF]

open access: yes, 2009
In this paper we study a Markov Chain Monte Carlo (MCMC) Gibbs sampler for solving the integer least-squares problem. In digital communication the problem is equivalent to performing Maximum Likelihood (ML) detection in Multiple-Input Multiple-Output ...
Dimakis, Alexandros G.   +3 more
core   +4 more sources

A Novel Enhanced Differential Evolution Algorithm for Outbound Logistics of the Poultry Industry in Thailand

open access: yesJournal of Open Innovation: Technology, Market and Complexity, 2022
: Outbound logistics is a crucial field of logistics management. This study considers a planning distribution for the poultry industry in Thailand. The goal of the study is to minimize the transportation cost for the multi-depot vehicle-routing problem ...
Karn Moonsri   +2 more
doaj   +3 more sources

Route Planning for Military Ground Vehicles in Road Networks under Uncertain Battlefield Environment

open access: yesJournal of Advanced Transportation, 2018
Route planning for military ground vehicles in the uncertain battlefield is a special kind of route planning problem, as the military vehicles face a great of uncertain and unpredicted attacks. This paper models these uncertainties in the road network by
Tan Zhao   +3 more
doaj   +1 more source

Control and data channel resource allocation in OFDMA heterogeneous networks [PDF]

open access: yes, 2015
This paper investigates the downlink resource allocation problem in Orthogonal Frequency Division Multiple Access (OFDMA) Heterogeneous Networks (HetNets) consisting of macro cells and small cells sharing the same frequency band.
Dianati, Mehrdad   +3 more
core   +2 more sources

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