Results 11 to 20 of about 5,183 (166)

Effectiveness of quadrat sampling on terrestrial cave fauna survey - a case study in a Neotropical cave

open access: yesActa Scientiarum: Biological Sciences, 2015
Quadrat sampling is a method used for a long time in plant ecology studies but only recently it has been used with focus on fauna. For the cave fauna samplings, there are rare works applying this methodology.
Maria Elina Bichuette   +3 more
doaj   +1 more source

Tuning approximate dynamic programming policies for ambulance redeployment via direct search

open access: yesStochastic Systems, 2014
In this paper we consider approximate dynamic programming methods for ambulance redeployment. We first demonstrate through simple examples how typical value function fitting techniques, such as approximate policy iteration and linear programming, may not
Matthew S. Maxwell   +2 more
doaj   +1 more source

Indirect Searches for Dark Matter with IceCube [PDF]

open access: yesEPJ Web of Conferences, 2019
The nature of dark matter remains one of the unsolved questions in modern cosmology and to understand its properties different experimental avenues are being explored.
Aguilar Sánchez Juan Antonio
doaj   +1 more source

Strategies to optimize MEDLINE and EMBASE search strategies for anesthesiology systematic reviews. An experimental study

open access: yesSão Paulo Medical Journal, 2018
BACKGROUND: A high-quality electronic search is essential for ensuring accuracy and comprehensiveness among the records retrieved when conducting systematic reviews. Therefore, we aimed to identify the most efficient method for searching in both MEDLINE
Enilze de Souza Nogueira Volpato   +9 more
doaj   +1 more source

Strategies for Online Information Search by University Students: the Relationship between Educational Use of the Internet and Cognitive Styles [PDF]

open access: yesSHS Web of Conferences, 2019
The paper presents the results of experimental study of students’ information searching strategies on the Internet. The study was aimed to analyze the relationship between university students’ strategies of information Internet search for educational ...
Panferov Vladimir   +3 more
doaj   +1 more source

What is the carbon footprint of reverse osmosis in water treatment plants? A systematic review protocol

open access: yesEnvironmental Evidence, 2023
Background “Carbon footprint” (CF) is a direct measure of greenhouse gas emissions caused by a defined activity and can demonstrate global warming effects.
Samaneh Abolli   +3 more
doaj   +1 more source

VOLDIS: A Direct Search for the Size Distribution of Nanoparticles from Small-Angle Scattering Data and Stability of the Solution

open access: yesCrystals, 2022
The paper considers an algorithm for the direct search for a nonparametric smooth histogram of the particle size distribution from small-angle X-ray and neutron scattering data. The features and details of the implementation of the method, which consists
Vladimir V. Volkov
doaj   +1 more source

Worst case complexity of direct search

open access: yesEURO Journal on Computational Optimization, 2013
In this paper, we prove that the broad class of direct-search methods of directional type based on imposing sufficient decrease to accept new iterates shares the worst case complexity bound of steepest descent for the unconstrained minimization of a ...
L.N. Vicente
doaj   +1 more source

Pareto-optimal solutions of the inverse gravimetric problem in the class of three-dimensional contact surfaces

open access: yesГеофизический журнал, 2020
In geophysical inverse problems, there are two approaches to data inversion. The first is the search for a number of unknowns by minimizing the residual function.
T.N. Kyshman-Lavanova
doaj   +1 more source

Dynamic Equivalents in Power System Studies: A Review

open access: yesEnergies, 2022
In this paper, the available methods and procedures for creating equivalents for the analysis of electromagnetic transients in power systems are presented and discussed.
Paweł Sowa, Daria Zychma
doaj   +1 more source

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