Results 21 to 30 of about 4,643,555 (306)

Accuracy Comparison of YOLOv7 and YOLOv4 Regarding Image Annotation Quality for Apple Flower Bud Classification

open access: yesAgriEngineering, 2023
Object detection is one of the most promising research topics currently, whose application in agriculture, however, can be challenged by the difficulty of annotating complex and crowded scenes. This study presents a brief performance assessment of YOLOv7,
Wenan Yuan
doaj   +1 more source

Domain formation and growth in spinodal decomposition of a binary fluid by molecular dynamics simulations [PDF]

open access: yes, 2008
The two initial stages of spinodal decomposition of a symmetric binary Lennard-Jones fluid have been simulated by molecular dynamics simulations, using a hydrodynamics-conserving thermostat.
Briels, W.J.   +2 more
core   +3 more sources

Early-stage financing and firm growth in new industries [PDF]

open access: yes, 2009
This paper shows that active investors, such as venture capitalists, can affect the speed at which new ventures grow. In the absence of product market competition, new ventures financed by active investors grow faster initially, though in the long run ...
Inderst, Roman, Müller, Holger
core   +1 more source

A model of growth and development in copepods [PDF]

open access: yes, 1994
We present a model for the growth and development of copepods based on the simple assumption that a constant fraction of assimilated carbon is invested in the formation of a new carapace.
Bosch, Frank van den, Gabriel, Wilfried
core   +1 more source

Thermodynamics, transition dynamics, and texturing in polymer-dispersed liquid crystals with mesogens exhibiting a direct isotropic/smectic-A transition [PDF]

open access: yes, 2009
Experimental and modeling/simulation studies of phase equilibrium and growth morphologies of novel polymer-dispersed liquid crystal (PDLC) mixtures of PS (polystyrene) and liquid crystals that exhibit a direct isotropic/smectic-A (lamellar) mesophase ...
Abukhdeir, Nasser Mohieddin   +2 more
core   +2 more sources

Soil-conservation effect of intercrops in silage maize

open access: yesSoil and Water Research, 2022
More than 50% of agricultural land is threatened by water erosion in the Czech Republic. With respect to soil erosion, maize (Zea mays L.) belongs to the most problematic crops; one of the possibilities to increase protection against erosion is ...
David Kincl   +5 more
doaj   +1 more source

Propagation of surface initiated rolling contact fatigue cracks in bearing Steel [PDF]

open access: yes, 2016
Surface initiated rolling contact fatigue, leading to a surface failure known as pitting, is a life limiting failure mode in many modern machine elements, particularly rolling element bearings.
Kadiric, A, Olver, A, Rycerz, P
core   +1 more source

Feed intake, gastrointestinal system and body composition in reindeer calves fed early harvested first cut timothy silage (Phleum pratense)

open access: yesRangifer, 1998
Early harvested first cut (EFC) timothy silage was fed to five reindeer calves (Rangifer tarandus tarandus L.) taken from their natural summer pasture and brought to Tromsø for feeding trial. The calves were housed indoors in metabolism cages and fed EFC
Harri J. Norberg, Svein D. Mathiesen
doaj   +1 more source

Response of Commelina erecta L. to glyphosate formulations, and role of starch and waxes in glyphosate sensitivity

open access: yesEcología Austral, 2022
The aim of this study was to evaluate the effects of two formulations of glyphosate on adult plants and seedlings of Commelina erecta L., and to determine whether stem starch storage and epicuticular waxes of leaves are involved in plant sensitivity to ...
Elisa Panigo   +5 more
doaj   +1 more source

A three-dimensional multiscale model of intergranular hydrogen-assisted cracking [PDF]

open access: yes, 2010
We present a three-dimensional model of intergranular hydrogen-embrittlement (HE) that accounts for: (i) the degradation of grain-boundary strength that arises from hydrogen coverage; (ii) grain-boundary diffusion of hydrogen; and (iii) a continuum model
Ortiz, M., Rimoli, J. J.
core   +1 more source

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