Results 81 to 90 of about 3,712,155 (267)

An MI-SDP Model for Optimal Location and Sizing of Distributed Generators in DC Grids That Guarantees the Global Optimum

Applied Sciences, 2020
This paper deals with a classical problem in power system analysis regarding the optimal location and sizing of distributed generators (DGs) in direct current (DC) distribution networks using the mathematical optimization.
Walter Gil-González, Alexander Molina-Cabrera, Oscar Danilo Montoya, Luis Fernando Grisales-Noreña   +3 more
doaj   +1 more source

A Multi‐Objective Periodic Vehicle Routing Model for Sustainable Healthcare Waste Collection

The International Journal of Health Planning and Management, EarlyView.
ABSTRACT The collection of infectious waste from healthcare facilities (HCF) constitutes a recurring operational challenge. Indeed, despite the inherent health risks posed by the storage and the transportation of infectious materials, most of the existing waste collection systems tends to prioritise cost optimization and to underaddress the safety ...
Hajer Ben‐Romdhane
wiley   +1 more source

FATCOP 2.0: Advanced Features in an Opportunistic Mixed Integer Programming Solver [PDF]

, 2000
We describe FATCOP 2.0, a new parallel mixed integer program solver that works in an opportunistic computing environment provided by the Condor resource management system.
Linderoth, Jeff, Chen, Qun, Ferris, Michael   +2 more
core  

Changes in deer hunter satisfaction under special antlerless harvest regulations in Pennsylvania, USA

The Journal of Wildlife Management, EarlyView.
Deer Management Assistance Program hunter satisfaction in Pennsylvania increased over time and was associated with antlerless deer harvest success, repeated permit purchases, and seeing an antlerless deer. Understanding these relationships can help wildlife agencies support both deer management objectives and long‐term hunter engagement.
Arun Regmi, Duane R. Diefenbach, Jacob J. Trowbridge, Melissa M. Kreye, Kripa Neupane, Emily J. Domoto, Christopher S. Rosenberry, Bret D. Wallingford, David P. Stainbrook, Marc E. McDill, Patrick J. Drohan, Autumn E. Sabo   +11 more
wiley   +1 more source

Interdiction Models and Heuristics for Graph Propagation

Networks, EarlyView.
ABSTRACT Given a graph G=(V,E)$$ G=\left(V,E\right) $$ and a set S⊂V$$ S\subset V $$ of activated/infected nodes, we consider the problem of determining the set of c$$ c $$ nodes that minimizes the network propagation on the subgraph that results from the removal of those c$$ c $$ nodes. To measure network propagation, we assume that a node i$$ i $$ is
Agostinho Agra, José Maria Samuco
wiley   +1 more source

Applications and algorithms for mixed integer nonlinear programming

Journal of Physics: Conference Series, 2009
The mathematical modeling of systems often requires the use of both nonlinear and discrete components. Discrete decision variables model dichotomies, discontinuities, and general logical relationships. Nonlinear functions are required to accurately represent physical properties such as pressure, stress, temperature, and equilibrium.
Sven Leyffer, Jeff Linderoth, James Luedtke, Andrew Miller, Todd Munson   +4 more
openaire   +1 more source

Regional analysis of spatiotemporal trends in Colorado potato beetle abundance

Pest Management Science, EarlyView.
Leveraging a large data set on Colorado potato beetles in Wisconsin, we examine spatial and temporal abundance trends. Spatiotemporal statistical models substantially improve fit and show that climate and management factors are positively associated with abundance levels.
Nursultan Azhimuratov, Russell L. Groves, Juan Francisco Mandujano Reyes, Jun Zhu, Sean D. Schoville   +4 more
wiley   +1 more source

Day-Ahead Coordinated Reactive Power Optimization Dispatching Based on Semidefinite Programming

Energies
With access to new energy sources, the problem of reactive power optimization and dispatching has become increasingly important for research. However, the reactive power optimization problem is a mixed integer nonlinear optimization problem.
Binbin Xu, Mengqi Liu, Yilin Zhong, Peijie Cong, Bo Zhu, Tao Liu, Yujun Li, Zhengchun Du   +7 more
doaj   +1 more source

Statistical Monitoring of Multivariate Count Data From Real‐Time Particle Counters

Quality and Reliability Engineering International, EarlyView.
ABSTRACT In the pharmaceutical industry, production environments are monitored for bacterial contamination. Particle counters are increasingly investigated for real‐time monitoring of viable microorganisms using count data for different particle size intervals.
Mona Emampour, Pieta C. Boon, Edwin R. van den Heuvel   +2 more
wiley   +1 more source

A Group Rotate-Vector Algorithm for Mixed-Variable Optimization Problems

IEEE Access
Many engineering design optimization problems can be represented as mixed-variable optimization problems. This study presents a heuristic approach for solving mixed-variable optimization using rotation and contraction of vectors. The current optimization
Zhongming Li, Lutao Yan, Haiyuan Li, Lianxin Wang   +3 more
doaj   +1 more source