Results 31 to 40 of about 203 (123)

Reconstructing polygons from moments with connections to array processing [PDF]

open access: yes, 1994
Caption title.Includes bibliographical references (p. 24-26).Supported by the Office of Naval Research. N00014-91-J-1004 Supported by the US Army Research Office. DAAL03-92-G-0115 Supported by the National Science Foundation. MIP-9015281 Supported by the

core  

Efeito da chuva na eficiência de herbicidas aplicados em pós-emergência sobre corda-de-viola [PDF]

open access: yes, 2013
O objetivo deste trabalho foi avaliar a influência da chuva na eficiência de herbicidas aplicados em pós-emergência em plantas de Ipomoea grandifolia. As plantas de I.
ANDERSON D. M.   +32 more
core   +4 more sources

LEVANTAMENTO FITOSSOCIOLÓGICO DE PLANTAS DANINHAS EM CULTIVO DE GENÓTIPOS DE BATATA-DOCE [PDF]

open access: yes, 2018
Este trabalho teve como objetivo identificar e quantificar a comunidade populacional de plantas daninhas presentes no cultivo de três genótipos de batata-doce.
Carvalho, Islan Diego Espindula de   +5 more
core   +2 more sources

La cisoide de Diocles en el contexto de la matemática antigua

open access: yesRevista de la Academia Colombiana de Ciencias Exactas Físicas y Naturales
The three classic problems of Greek mathematics are the squaring of the circle, the trisection of the angle and the doubling of the cube. These questions had enormous importance in the progress of Hellenic geometry and acted as true poles of interest ...
J.M. Ayerbe Toledano
semanticscholar   +1 more source

Germination and seedling morphology of four South American Smilax (Smilacaceae) [PDF]

open access: yes, 2012
Species of Smilax,, also known as greenbrier, are widely distributed in Brazil and their commercial trades are carried out by the extractivism of native species. We the aim to provide information about the germination and development of seedlings in four
Bombo, Aline Bertolosi   +5 more
core   +2 more sources

Development of (NO)Fe(N2S2) as a Metallodithiolate Spin Probe Ligand: A Case Study Approach

open access: yesAccounts of Chemical Research
Conspectus The ubiquity of sulfur–metal connections in nature inspires the design of bi- and multimetallic systems in synthetic inorganic chemistry. Common motifs for biocatalysts developed in evolutionary biology include the placement of metals in close
M. Quiroz, M. Darensbourg
semanticscholar   +1 more source

STUDY OF A MECHANISM FOR GENERATING CISSOID

open access: yesJournal of Research and Innovation for Sustainable Society, 2020
In the paper, data on the geometric construction of the cissoid are given and some mechanisms that generate it are presented. The analysis of a mechanism created by Artobolevskii is detailed, finding its limitations: it generates a single branch of the cissoid and in addition to the established geometric conditions, there are two other conditions: the ...
Iulian POPESCU   +2 more
openaire   +1 more source

2-D DOA Estimation of LFM Signals Based on Dechirping Algorithm and Uniform Circle Array [PDF]

open access: yes, 2017
Based on Dechirping algorithm and uniform circle array(UCA), a new 2-D direction of arrival (DOA) estimation algorithm of linear frequency modulation (LFM) signals is proposed in this paper.
Chen, X.   +4 more
core   +2 more sources

Mathematics, quantifiers, connectives, multiple models [PDF]

open access: yes, 2020
Quantic numbers variate as multiples of a fundamental quantity as the spin, that is always an entire multiple of 1 ...
Festa, Rosanna
core  

Influência da intensidade de luz no controle químico de plantas daninhas [PDF]

open access: yes, 2021
In response to low light availability in shading, weeds undergo morphological and physiological changes that can alter their sensitivity to glyphosate and carfentrazone-ethyl herbicides.
Guilherme Augusto de Paiva Ferreira
core  

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