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Effects of density and sowing pattern on weed suppression and grain yield in three varieties of maize under high weed pressure
We tested the hypothesis that improved weed suppression
by maize can be achieved through increased crop
density and spatial uniformity. Field experiments on
three varieties of maize sown at three densities (5, 7
and ...
Qualidade de cultivares de grãos de arroz submetidos à secagem e armazenagem em silo-secador-aerador
(Universidade Federal de Santa MariaBrasilEngenharia AgrícolaUFSMPrograma de Pós-Graduação em Engenharia AgrícolaCentro de Ciências Rurais, 2022-09-16)
The quality of rice grains can be influenced by several factors, including during the postharvest stages, such as grain drying. In addition, the characteristics of the cultivar influence
the quality of rice grains. Thus, ...
Microstructure evolution during warm deformation of low carbon steel with dispersed cementite
(2007-12-01)
The microstructure evolution and mechanical behavior during large strain of a 0.16%C-Mn steel has been investigated by warm torsion tests. These experiments were carried out at 685°C at equivalent strain rate of 0.1 s . ...
Effects of Etching on Zircon Grains and Its Implications for the Fission Track Method
(Soc Applied Spectroscopy, 2012-05-01)
Studies of zircon grains using optical microscopy, micro-Raman spectroscopy, and scanning electron microscopy (SEM) have been carried out to characterize the surface of natural zircon as a function of etching time. According ...
Effects of Etching on Zircon Grains and Its Implications for the Fission Track Method
(Soc Applied Spectroscopy, 2012-05-01)
Studies of zircon grains using optical microscopy, micro-Raman spectroscopy, and scanning electron microscopy (SEM) have been carried out to characterize the surface of natural zircon as a function of etching time. According ...
Microstructure of organometallic derived PLZT ceramics
(Elsevier B.V., 2001-01-01)
The PLZT powders with the formula Pb0.905La0.095(Zr0.65Ti0.35)(0.976)O-3+3.5 wt.% PbO were prepared by the organometallic precursor method (Pechini and partial oxalate processes). The microstructure of sintered 9.5/65/35 ...
Microstructure of organometallic derived PLZT ceramics
(Elsevier B.V., 2001-01-01)
The PLZT powders with the formula Pb0.905La0.095(Zr0.65Ti0.35)(0.976)O-3+3.5 wt.% PbO were prepared by the organometallic precursor method (Pechini and partial oxalate processes). The microstructure of sintered 9.5/65/35 ...
The effect of chemical and physical imperfections in zircon grains in influencing the U-Pb age analyses: Insights from zircon fission track etching
(2019-12-15)
Understanding the chemical etching effects in the crystalline structure of zircon grains is crucial to know their chemical composition, morphology and isotopic geochemistry. After chemical etching, the zircon grain can be ...