Results 41 to 50 of about 161,336 (310)
World Nutrition, 2019 Background: Malnutrition among Filipino children persists; underscoring the value of nutritional assessment procedures. In the Philippines, this is carried out at the local level in its annual Operation Timbang [weigh] (OPT or OPT Plus).
Ma. Anna Rita Marfil Ramirez +2 more
doaj +1 more source
Journal of Animal Science and Biotechnology, 2020 Background The study objective was to test the hypothesis that 1) lowering dietary crude protein (CP) increases dietary energetic efficiency and reduces metabolic heat associated with lactation, and 2) excessive dietary leucine (Leu) supplementation in a
Sai Zhang +3 more
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A 2-opt Algorithm for Locally Optimal Set Partition Optimization
, 2023 Our research deals with the optimization version of the set partition problem, where the objective is to minimize the absolute difference between the sums of the two disjoint partitions. Although this problem is known to be NP-hard and requires exponential time to solve, we propose a less demanding version of this problem where the goal is to find a ...
Gokcesu, Kaan, Gokcesu, Hakan
openaire +2 more sources
Electrically and optically controlled cross-polarized wave conversion [PDF]
, 2008 Light wave propagation in third-order nonlinear media with applied external electric field is investigated. Interplay between the nonlinear electro-optic and all-optical effects is examined theoretically.
Pištora, Jaromír +2 more
core +1 more source
Net global warming potential and greenhouse gas intensity in a double-cropping cereal rotation as affected by nitrogen and straw management [PDF]
Biogeosciences, 2013 The effects of nitrogen and straw management on global warming potential (GWP) and greenhouse gas intensity (GHGI) in a winter wheat–summer maize double-cropping system on the North China Plain were investigated. We measured nitrous oxide (N2O) emissions
T. Huang, B. Gao, P. Christie, X. Ju
doaj +1 more source
The approximation ratio of the 2-Opt Heuristic for the metric Traveling Salesman Problem [PDF]
Operations Research Letters, 2020 The 2-Opt heuristic is one of the simplest algorithms for finding good solutions to the metric Traveling Salesman Problem. It is the key ingredient to the well-known Lin-Kernighan algorithm and often used in practice. So far, only upper and lower bounds on the approximation ratio of the 2-Opt heuristic for the metric TSP were known.
Stefan Hougardy +2 more
openaire +3 more sources
Effective heuristics and meta-heuristics for the quadratic assignment problem with tuned parameters and analytical comparisons [PDF]
, 2012 Quadratic assignment problem (QAP) is a well-known problem in the facility location and layout. It belongs to the NP-complete class. There are many heuristic and meta-heuristic methods, which are presented for QAP in the literature.
Bashiri, Mahdi, Karimi, Hossein
core +1 more source
Solución al Problema del Agente Viajero usando un algoritmo de colonia de abejas
TecnuraEl Problema del Agente Viajero, o TSP por sus siglas en inglés (Travelman Salesman Problem), es un problema de optimización que consiste en hallar la ruta mínima para recorrer n ciudades, partiendo desde la ciudad de origen o nodo cero, visitando todas ...
Jairo Alberto Villegas Flórez +2 more
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Metabolites, 2022 Jasione montana is a plant from the family Campanulaceae rich in phenols with health-beneficial properties such as luteolin (LUT) derivatives. In this work, a glycerol-based ultrasound-assisted extraction method was developed and optimized for in total ...
Aleksandra Maria Juszczak +5 more
doaj +1 more source
Quantum annealing of the Traveling Salesman Problem
, 2004 We propose a path-integral Monte Carlo quantum annealing scheme for the symmetric Traveling Salesman Problem, based on a highly constrained Ising-like representation, and we compare its performance against standard thermal Simulated Annealing.
D. J. Wales +4 more
core +1 more source